An intelligent feeding system for a quick-change lock automatic assembly line

Abstract

This invention relates to the field of production and transportation technology, specifically to an intelligent feeding system for a quick-change lock automatic assembly line. Installed on the left side of the automatic assembly line body, the intelligent feeding system includes a base and staggered feeding platforms, as well as an oil spray gun, a robotic arm, an electric push rod, a mounting frame, a detection component, grippers, and a permanent magnet. The oil spray gun and robotic arm are both connected to the top of the base. The electric push rod is connected to the right side of the end of the robotic arm. The mounting frame is connected to the end of the robotic arm, with the lower end of the electric push rod passing through the robotic arm and connected to the mounting frame. The detection component is connected to the mounting frame, the grippers are connected to the lower side of the detection component, and the permanent magnet is connected to the upper side inside the detection component. This invention uses a permanent magnet to adapt to individual differences in rotating nuts for measurement and verifies the measurement results with electronic weighing, thereby improving detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of production and transportation technology, specifically to an intelligent feeding system for a quick-change lock automatic assembly line. Background Technology

[0002] A quick-change lock is a device that allows for rapid replacement or locking, widely used in security doors that are frequently opened and closed during machining processes. A quick-change lock mainly consists of several parts, including a rotating nut, a sleeve, and wear-resistant washers, and is assembled automatically on an automated assembly line. The rotating nut feeding system is a crucial component of this automated assembly line.

[0003] The rotary nut loading system primarily uses a robotic arm in conjunction with grippers for loading operations. During the loading process, to ensure a good user experience, the rotary nuts are sprayed with oil. When spraying oil, the amount of oil needs to be kept within a suitable range. Therefore, strain gauges are installed on the robotic arm for weighing. The weight of the rotary nut after oiling is measured, and once it passes the weight test, it is placed on the automated assembly line. However, some rotary nuts, for ease of docking and assembly, often contain a certain degree of magnetism. The limited space on the robotic arm can cause the strain gauges to be positioned too close to the rotary nut, resulting in the magnetism of the rotary nut affecting the measurement accuracy of the strain gauges. This leads to inaccurate measurements of the rotary nut, ultimately impacting the user experience.

[0004] To address the aforementioned issues, existing technologies have proposed several solutions. For example, by setting fixed weighing points, the distance between the strain gauge and the rotating nut can be increased by creating more space. However, due to the fixed weighing position and the need to compare the weight of the rotating nut before and after oil spraying to determine the amount of oil sprayed, the robotic arm needs to perform multiple gripping operations on the weighing device. These multiple gripping operations not only reduce the production efficiency of the equipment but also easily cause deviations in the initial gripping positions of the rotating nut and the gripper, affecting subsequent production.

[0005] To address this, an intelligent feeding system for a quick-change lock automatic assembly line is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent feeding system for a quick-change lock automatic assembly line. This system solves the problem that in the rotating nut feeding process, due to external interference factors, strain gauges are difficult to accurately measure the changes in the total amount of oil applied to the rotating nut, thus making it impossible to accurately determine the pass rate of the rotating nut after oiling. By using a permanent magnet to adapt to the individual differences of the rotating nut for measurement, and verifying the measurement results with the results of electronic weighing of the strain gauges, the accuracy of the detection is guaranteed.

[0007] During the loading process, in order to monitor the pass rate of the same batch of products, the manufacturer will attach a QR code to the surface of the rotating nut. During loading, the robotic arm needs to move the rotating nut to the industrial camera for scanning to confirm the product information. However, since the position of the QR code attached to the rotating nut is not fixed, the rotating nut needs to be rotated when taking a picture. This results in an extra step in the loading process of the rotating nut, which is to place and display the rotating nut.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] An intelligent feeding system for a quick-change lock automatic assembly line is installed on the left side of the automatic assembly line body for feeding rotating nuts. The intelligent feeding system includes a base and staggered feeding platforms, as well as an oil spray gun, a robotic arm, an electric push rod, a mounting frame, a detection component, grippers, a permanent magnet, and a measuring block. The oil spray gun and robotic arm are both connected to the top of the base. The electric push rod is connected to the right side of the end of the robotic arm. The mounting frame is connected to the end of the robotic arm, and the lower end of the electric push rod passes through the robotic arm and connects to the mounting frame. The detection component is connected to the mounting frame, and the measuring block is connected to the lower end of the detection component. The gripper is connected to the lower side of the measuring block. The measuring block is used to detect the weight change of the gripper when it is compressed. The permanent magnet is connected to the upper side inside the detection component. When the gripper is compressed, the detection component moves the permanent magnet downward to form detection point a. When the gripper is pressed, the detection component moves the permanent magnet downward to form detection point b. The height difference between detection point b and detection point a is verified with the detection value of the measuring block.

[0010] Through the above scheme, the weight of the rotating nut causes the detection component to move the permanent magnet downwards. The position of the permanent magnet downwards is adjusted according to the weight of the rotating nut, thus adapting to different rotating nuts and effectively improving detection accuracy. After oil spraying, the weight of the rotating nut changes, causing it to move downwards again. By measuring the difference in distance between the two downward movements of the permanent magnet, the oil content can be calculated. At the same time, the measuring block monitors the weight change of the rotating nut in real time and records the value after the rotating nut stabilizes. During the feeding process of the rotating nut, the two measurement results are verified, thereby achieving the goal of improving detection accuracy and effectively ensuring subsequent production.

[0011] Preferably, the front end of the robotic arm is connected to an industrial camera. The detection component includes a sleeve, a straight cylinder, a spring, a sliding column, a synchronizing element, and a transmission element. The sleeve is connected to the middle of the mounting frame, the straight cylinder is connected to the top of the sleeve, the spring and the sliding column are connected to the inner cavity of the sleeve from top to bottom, and the sliding column is connected to the lower end of the spring. The synchronizing element is connected to the outer wall of the straight cylinder, the transmission element is connected to the mounting frame, and the permanent magnet is connected to the inner cavity of the straight cylinder.

[0012] Preferably, the inner cavity of the sleeve is connected to the inner cavity of the straight cylinder, and the inner diameter of the sleeve is greater than the inner diameter of the straight cylinder.

[0013] With the above scheme, after the gripper clamps the object, the change in the weight of the gripper causes the sliding column to slide inside the sleeve, which changes the hydraulic pressure inside the sleeve. The inner cavity of the sleeve is connected to the inner cavity of the straight cylinder, which in turn changes the hydraulic pressure inside the straight cylinder, causing the permanent magnet connected to the inner cavity of the straight cylinder to slide, thus achieving the effect of measuring based on the weight held by the gripper.

[0014] Preferably, the synchronization component includes an upper slide, a lower slide, a sensor, an electromagnet, a push spring, and a positioning frame. The upper slide and the lower slide are both connected to the outer wall of the straight cylinder, with the upper slide passing through the lower slide. The sensor is connected to the left side of the lower slide. The electromagnet, push spring, and positioning frame are connected sequentially from right to left to the left side of the lower slide. The positioning frame is slidably connected to the upper slide. Thus, the movement of the permanent magnet can drive the electromagnet to move, achieving the purpose of adapting to different rotating nuts for measurement.

[0015] Preferably, the electromagnet has contacts on both sides, and the positioning frame has energized blocks connected to the corresponding positions of the contacts on the front and rear sides. When the positioning frame is pressed, the positioning frame causes the contacts to separate from the energized blocks, and the right end of the positioning frame contacts the straight cylinder. This facilitates the control of the electromagnet's connection state.

[0016] Preferably, the transmission component includes a motor, a driving gear, a driven gear, a transmission rod, a transmission disc, and a rotating rod. The motor is connected to the upper side of the mounting frame, the driving gear is connected to the upper side of the motor, the driven gear meshes with the front side of the driving gear, the transmission rod is connected to the lower side of the driven gear and passes through the mounting frame, the transmission disc is connected to the lower end of the transmission rod, the rotating rod is connected to the upper side of the driven gear, and the right side of the rotating rod has a flat surface. When the flat surface is in contact with the positioning frame, the positioning frame is not under pressure.

[0017] The above scheme allows the rotating rod to apply pressure to the positioning frame when it rotates, causing the positioning frame to move and come into contact with the energized state of the electromagnet. This facilitates the further downward movement of the permanent magnet after the oil is sprayed onto the rotating nut, enabling measurement operations.

[0018] Preferably, the sliding column includes a sliding rod and a connecting rod. The sliding rod is connected to the lower side of the spring, and the connecting rod is connected to the lower side of the sliding rod. The longitudinal section of the connecting rod is stepped. The measuring block is fixed to the lower side of the connecting rod, and a strain gauge is connected inside the measuring block. Thus, the longitudinal section of the connecting rod is stepped, which reduces the volume and weight of the connecting rod.

[0019] Preferably, the transmission disc has symmetrical slots on its left and right sides, and the shortest distance between the two slots on the outer circumference of the transmission disc is m, where m is greater than the minor diameter of the connecting rod.

[0020] With the above scheme, grooves are symmetrically opened on the left and right sides of the circumference of the transmission disk, so that the circumference of the transmission disk forms two segments m, where m is greater than the minor diameter of the connecting rod. Thus, the transmission disk can drive the rotating nut to rotate a full circle, which is convenient for the industrial camera to record the nut information.

[0021] Preferably, a torsion spring is connected to the lower end face of the slide rod, and the other end of the torsion spring is connected to the connecting rod.

[0022] With the above solution, when the connecting rod rotates, the torsion spring can store force and release it when the transmission plate rotates to the slot, thereby driving the rotating nut to rotate. On the one hand, this allows the oil to be evenly coated on the inner wall of the rotating nut, and on the other hand, it displays the complete circumference of the rotating nut, making it easier to scan the rotating nut and achieving the goal of reducing the number of processes.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This invention solves the problem in the rotating nut feeding process where strain gauges are affected by external interference, making it difficult to accurately measure changes in the total amount of oil applied to the rotating nut and thus impossible to accurately determine the pass rate after oiling. By setting a permanent magnet that moves with the robotic arm, the permanent magnet slides in the cylinder when the gripper holds the rotating nut, thus recording the weight of the rotating nut. This allows the height of the permanent magnet to adapt to changes in the weight of the rotating nut. Furthermore, the permanent magnet exhibits different heights in the cylinder before and after oiling. By measuring the height difference of the permanent magnet before and after oiling, mechanical measurement of the rotating nut is achieved. Simultaneously, when the weight of the rotating nut changes, the measuring block records the difference in weight before and after, forming an electronic measurement. The measurement results from both sides are verified, thereby effectively improving the detection accuracy.

[0025] 2. By incorporating a torsion spring, during the swinging motion of the robotic arm, the motor drives the connecting rod to rotate via the transmission disc. This rotation of the connecting rod, on one hand, causes the rotating nut to rotate, allowing its complete circumference to be displayed in front of the industrial camera, thus reducing the need for photographing the rotating nut during loading. On the other hand, it applies force to the torsion spring. When the nut is placed onto the automated assembly line body, the slot of the transmission disc faces the connecting rod, causing the torsion spring to release force and rotate the oil-coated rotating nut. Centrifugal force allows the oil to penetrate the threads of the rotating nut, effectively improving the uniformity of the oil on the inner wall of the nut, preventing oil dripping, and thus ensuring stable detection values.

[0026] 3. When the sliding column moves downward through the sleeve, the resulting negative pressure acts on the permanent magnet, causing it to move downward. By making the diameter of the sleeve larger than the inner diameter of the straight cylinder, the permanent magnet can move a greater distance in the straight cylinder when the sliding column moves through the sleeve. This effectively improves the monitoring accuracy and ensures the amount of oil sprayed onto the rotating nut. At the same time, during oil spraying, the slot of the transmission disc faces the connecting rod, and the torsion spring drives the connecting rod to reset and rotate, causing the rotating nut to rotate. The oil spray gun sweeps across the entire inner circumference of the rotating nut, effectively improving the oil spraying effect on the rotating nut. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Enlarged diagram of point A in the diagram;

[0029] Figure 3 This is a schematic diagram of the detection component of the present invention;

[0030] Figure 4 This is a schematic diagram of the synchronization component of the present invention;

[0031] Figure 5 This is a schematic diagram of the transmission component of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged diagram of point B in the image;

[0033] Figure 7 This is a schematic diagram showing the state of the rotating nut being clamped in this invention;

[0034] Figure 8 This is a schematic diagram showing the state of the rotating nut after oil spraying according to the present invention.

[0035] In the diagram: 1. Automatic assembly line body; 2. Base; 3. Staggered loading platform; 4. Oil spray gun; 5. Robotic arm; 6. Electric push rod; 7. Mounting bracket; 8. Detection component; 801. Sleeve; 802. Straight cylinder; 803. Spring; 804. Sliding column; 8041. Sliding rod; 8042. Connecting rod; 8043. Torsion spring; 805. Synchronizer; 8051. Upper slide; 8052. Lower slide; 8053. Sensor; 8054 80541 Electromagnet; 8055 Push spring; 8056 Positioning frame; 80561 Energizing block; 806 Transmission component; 8061 Motor; 8062 Driving gear; 8063 Driven gear; 8064 Transmission rod; 8065 Transmission disc; 80651 Slot; 8066 Rotating rod; 80661 Flat surface; 9. Gripper; 10. Permanent magnet; 11. Industrial camera; 12. Measuring block. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, so as to provide a more detailed description of their working state and structural features. Obviously, the described embodiments are only some embodiments of the present invention and not complete embodiments. Based on the embodiments of the present invention, other embodiments obtained by those of ordinary skill in the art without creative effort are all within the protection scope of the present invention.

[0037] Please see Figures 1 to 8 This invention provides an intelligent feeding system for an automatic assembly line of quick-change locks, the technical solution of which is as follows:

[0038] For details, please refer to Figures 1 to 8 An intelligent feeding system for a quick-change lock automatic assembly line is installed on the left side of the automatic assembly line body 1 for feeding rotating nuts. The intelligent feeding system includes a base 2 and an interleaved feeding platform 3. The interleaved feeding platform 3 is connected to the top left side of the base 2, and the rotating nuts are placed on the interleaved feeding platform 3. It also includes an oil spray gun 4, a robotic arm 5, an electric push rod 6, a mounting bracket 7, a detection component 8, grippers 9, a permanent magnet 10, and a measuring block 12. The oil spray gun 4 and the robotic arm 5 are both connected to the top of the base 2, and the oil spray gun 4 is located in front of the robotic arm 5. The oil spray gun 4 is within the range of motion of the robotic arm 5, and the nozzle of the oil spray gun 4 faces diagonally downward. During the oil spraying process, the height of the nozzle of the oil spray gun 4 cannot exceed the top of the rotating nut, thereby effectively avoiding oil contamination of the gripper 9. The electric push rod 6 is connected to the right side of the end of the robotic arm 5, and the mounting bracket 7 is connected to the end of the robotic arm 5. The lower end of the electric push rod 6 passes through the robotic arm 5 and connects to the mounting bracket 7. The detection component 8 is connected to the mounting bracket 7. The measuring block 12 is connected to the lower end of the detection component 8, and the gripper 9 is connected to the lower side of the measuring block 12. The measuring block 12 is used to detect the weight change of the gripper when it is compressed. A strain gauge is connected inside the measuring block 12. A permanent magnet 10 is connected to the upper side inside the detection component 8. The permanent magnet 10 is far away from the strain gauge, and its magnetism will not cause magnetic interference to the normal detection of the strain gauge. When the gripper 9 is compressed, the detection component 8 drives the permanent magnet 10 to move down to form detection point a. When the gripper 9 is holding the rotating nut, the position of detection point a is affected by the weight of the nut. When the gripper 9 is compressed, the detection component 8 drives the permanent magnet 10 to move down to form detection point b. After the rotating nut is sprayed with oil, the weight of the nut becomes heavier, and the permanent magnet 10 moves down further. Detection point b is recorded. The height of detection point a is higher than the height of detection point b. The height difference between detection point b and detection point a is verified with the detection value of the measuring block 12.

[0039] By setting a permanent magnet 10, after the gripper 9 stabilizes the rotating nut, the weight of the gripper 9 changes, causing the permanent magnet 10 to move downwards, forming detection point a. Since detection point a is randomly affected by the weight of the rotating nut, it adapts to the individual differences of the rotating nut, facilitating the detection of oil spraying volume for different rotating nuts. After oil spraying, the rotating nut becomes even heavier, causing the permanent magnet 10 to move downwards further, forming detection point b. By measuring the height difference between detection point a and detection point b, the weight of the rotating nut after oil spraying can be effectively measured. This process is performed on the robotic arm 5, effectively reducing the loading process of the rotating nut and improving production efficiency. By setting a measuring block 12, the gripper 9 can detect the weight change of the rotating nut in real time when gripping it, and obtain the stable value of the rotating nut before and after oil spraying. By comparing and verifying the difference measured by the measuring block 12 with the height difference between detection point a and detection point b, the accuracy of detecting magnetic rotating nuts is effectively improved.

[0040] As one embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 7 and Figure 8 The front end of the robotic arm 5 is connected to an industrial camera 11, with the camera's shooting end facing the rotating nut on the gripper 9. The detection assembly 8 includes a sleeve 801, a straight cylinder 802, a spring 803, a sliding column 804, a synchronizing element 805, and a transmission element 806. The sleeve 801 is fixedly connected to the middle of the mounting frame 7, and the straight cylinder 802 is fixedly connected to the top of the sleeve 801. The spring 803 and the sliding column 804 are connected sequentially from top to bottom to the inner cavity of the sleeve 801. The top of the spring 803 is connected to the top of the inner cavity of the sleeve 801, and the sliding column 804 is connected to the lower end of the spring 803. The sliding column 804 is slidably connected to the inner cavity of the sleeve 801. The synchronizing element 805 is connected to the outer wall of the straight cylinder 802, and the transmission element 806 is connected to the mounting frame 7. The permanent magnet 10 is slidably connected to the straight cylinder 802. The inner cavity of the cylinder 802 has a vent hole at the top. The inner cavity of the sleeve 801 is connected to the inner cavity of the straight cylinder 802. When the sliding column 804 slides downward in the inner cavity of the sleeve 801, it can create a negative pressure in the inner cavity of the sleeve 801. The negative pressure is transmitted to the straight cylinder 802, which causes the permanent magnet 10 in the straight cylinder 802 to slide downward. At this time, the vent hole can release pressure on the upper side of the permanent magnet 10. The inner diameter of the sleeve 801 is larger than that of the straight cylinder 802. The inner diameter of the straight cylinder 802 is smaller. Under the action of oil pressure, the change in the height of the oil in the sleeve 801 will be amplified by the straight cylinder 802. As a result, the downward movement distance of the sliding column 804 can be several times that of the downward movement distance of the permanent magnet 10, thereby effectively improving the measurement accuracy.

[0041] By setting the detection component 8, the weight of the gripper 9 changes after the rotating nut is clamped, which in turn drives the slide column 804 to move downward. The downward movement of the slide column 804 expands the volume of the top chamber of the sleeve 801, causing a hydraulic change in the top chamber of the sleeve 801. The inner cavity of the sleeve 801 is connected to the inner cavity of the straight cylinder 802, and the negative pressure acts on the permanent magnet 10 through the inner cavity of the straight cylinder 802, causing the permanent magnet 10 to move downward. The downward movement distance of the permanent magnet 10 adapts to the weight of the rotating nut, effectively accommodating rotating nuts of different weights. After oil spraying, the weight of the rotating nut increases further, and the permanent magnet 10 moves downward further. By comparing the height difference of the permanent magnet 10 before and after oil spraying, the weight of the rotating nut after oil spraying can be calculated. At the same time, the inner diameter of the sleeve 801 is made larger than the inner diameter of the straight cylinder 802, thereby achieving the purpose of amplifying the weight change of the rotating nut.

[0042] As one embodiment of the present invention, refer to Figure 4 , Figure 5 , Figure 7 and Figure 8 The synchronizing element 805 includes an upper slide 8051, a lower slide 8052, a sensor 8053, an electromagnet 8054, a push spring 8055, and a positioning frame 8056. Both the upper slide 8051 and the lower slide 8052 are slidably connected to the outer wall of the straight cylinder 802, with the upper slide 8051 passing through the lower slide 8052. The distance between the upper slide 8051 and the lower slide 8052 is adjustable. The sensor 8053 is connected to the left side of the lower slide 8052. The electromagnet 8054, push spring 8055, and positioning frame 8056 are connected sequentially from right to left to the left side of the lower slide 8052. The two ends of the push spring 8055 are respectively connected to the electromagnet... Electromagnet 8054 and positioning frame 8056 are in contact. The position of electromagnet 8054 is fixed. Positioning frame 8056 is slidably connected to upper slide frame 8051. Contact points 80541 are connected to both sides of electromagnet 8054. Electric blocks 80561 are connected to the front and rear sides of positioning frame 8056 at positions corresponding to contact points 80541. When positioning frame 8056 is not under pressure, contact points 80541 are in contact with electric blocks 80561. When contact points 80541 are in contact with electric blocks 80561, electromagnet 8054 generates magnetic force and is magnetically attracted to permanent magnet 10. At this time, the up and down sliding of permanent magnet 10 can drive electromagnet 8054 to slide up and down.

[0043] By setting the synchronization component 805, in the initial state, the electromagnet 8054 is energized and magnetically connected to the permanent magnet 10. Then, the movement of the permanent magnet 10 can drive the electromagnet 8054 to move. By moving the positioning bracket 8056, the contact 80541 can be separated from the energized block 80561, thus releasing the energization of the electromagnet 8054 and the magnetic connection with the permanent magnet 10, allowing the permanent magnet 10 to slide freely. If the permanent magnet 10 moves down but does not pass through the sensor 8053, or if oil drips down after moving down, causing the weight of the nut to decrease, and the permanent magnet 10 moves up again to the underside of the sensor 8053, it indicates that the amount of oil sprayed on the rotating nut is not up to standard, and it should be discarded into the scrap box.

[0044] As one embodiment of the present invention, refer to Figure 5 , Figure 6 , Figure 7 and Figure 8The transmission component 806 includes a motor 8061, a driving gear 8062, a driven gear 8063, a transmission rod 8064, a transmission disc 8065, and a rotating rod 8066. The motor 8061 is connected to the upper side of the mounting bracket 7, the driving gear 8062 is connected to the upper side of the motor 8061, and the upper side of the motor 8061 is the power output end. The driven gear 8063 meshes with the front side of the driving gear 8062. The transmission rod 8064 is connected to the lower side of the driven gear 8063 and passes through the mounting bracket 7. The transmission rod 8064 is rotatably connected to the mounting bracket 7. The transmission disc 8065 is fixedly connected to the transmission rod 8066. The lower end of the moving rod 8064 and the rotating rod 8066 are connected to the upper side of the driven gear 8063. A flat surface 80661 is provided on the right side of the rotating rod 8066. The rotating rod 8066 passes through the upper slide 8051. When the flat surface 80661 is in contact with the positioning frame 8056, the positioning frame 8056 is not compressed. When the rotating rod 8066 rotates, the flat surface 80661 separates from the positioning frame 8056, and the positioning frame 8056 is compressed and moves to the right. The sliding column 804 includes a sliding rod 8041 and a connecting rod 8042. The sliding rod 8041 is connected to the lower side of the spring 803. The sliding rod 8041 and... The sleeve 801 is slidably connected, and the connecting rod 8042 is connected to the lower side of the sliding rod 8041. The longitudinal section of the connecting rod 8042 is stepped, which effectively reduces the weight of the connecting rod 8042. Grooves 80651 are opened on the left and right sides of the circumference of the transmission disc 8065. When the transmission disc 8065 rotates, the sidewall of the transmission disc 8065 contacts the connecting rod 8042, thereby driving the connecting rod 8042 to rotate. The shortest distance between the two grooves 80651 on the outer circumference of the transmission disc 8065 is m, which is greater than the minor diameter of the connecting rod 8042, thus enabling the connecting rod to rotate. When rod 8042 completes a full rotation, it effectively displays the rotating nut in front of industrial camera 11, facilitating scanning of the rotating nut by industrial camera 11. This effectively reduces the scanning process and improves production efficiency. The two slots 80651 divide the surface of transmission disk 8065 equally, forming two m-shaped sections on the surface of transmission disk 8065. A torsion spring 8043 is connected to the lower end of slide rod 8041, and the other end of torsion spring 8043 is connected to connecting rod 8042. When slide rod 8041 rotates, it applies force to torsion spring 8043. The measuring block 12 is fixed to the lower side of connecting rod 8042.

[0045] By setting up the transmission component 806, the motor 8061 is activated during the swinging motion of the robotic arm 5. The motor 8061 drives the transmission rod 8064 and the rotating rod 8066 to rotate via the drive gear 8062 and the driven gear 8063. When the transmission rod 8064 rotates, it drives the transmission disc 8065 to rotate, causing the transmission disc 8065 to contact the connecting rod 8042, thus driving the connecting rod 8042 to rotate. The rotation of the connecting rod 8042 will cause the torsion spring 8043 to be stressed. When the swing arm moves to the oil spray gun 4, the transmission disc 8065 rotates to the slot 80651. At this time, the connecting rod 8042 loses its limit, and the torsion spring 8043 will drive the connecting rod 8042 to rotate, which in turn causes the rotating nut to rotate, allowing the oil to be sprayed onto the rotating rod. During the process of the robotic arm 5 moving from the oil spray gun 4 to the automatic assembly line body 1, the motor 8061 will continue to drive the transmission disk 8065 to rotate, causing the torsion spring 8043 to be stressed. When the robotic arm 5 moves to the automatic assembly line body 1, it will release the force on the rotating nut. The rotating nut rotates, and the oil in it generates centrifugal force and seeps into the threads of the rotating nut. After the feeding is completed, the rotating rod 8066 rotates a full revolution. At this time, the flat surface 80661 faces the positioning frame 8056. The push spring 8055 pushes the positioning frame 8056 to reset. The energizing block 80561 contacts the contact point 80541, and the electromagnet 8054 is energized. Then the permanent magnet 10 moves upward and drives the synchronizing component 805 to move upward through the electromagnet 8054.

[0046] This invention first uses strain gauges inside measuring block 12 to electronically detect the oil injection weight of the rotating nut. Then, by utilizing the weight of the rotating nut, the permanent magnet 10 is moved downwards, and the position of the permanent magnet 10 at this time is recorded by the detection component 8. After the permanent magnet 10 is injected with oil, the distance the permanent magnet 10 moves again is determined, and the oil injection weight of the permanent magnet 10 is determined mechanically again. The specific scheme is as follows:

[0047] During loading, the robotic arm 5 moves the gripper 9 to the upper side of the staggered loading platform 3. The electric push rod 6 drives the gripper 9 to move downwards via the mounting bracket 7, and the gripper 9 clamps the rotating nut. The electric push rod 6 drives the mounting bracket 7 to reset, at which point the robotic arm 5 briefly stops. At this time, the measuring block 12 measures the weight of the rotating nut. Simultaneously, the weight of the rotating nut acts on the gripper 9, causing the sliding column 804 to move downwards. The sealed chamber formed between the sliding column 804 and the straight cylinder 802 is located within the sliding column 804. After moving downwards, a negative pressure is created, causing the permanent magnet 10 to move downwards. When the permanent magnet 10 moves downwards, it drives the upper slide 8051 to move downwards via the electromagnet 8054. After the permanent magnet 10 stabilizes, the upper slide 8051 forms a detection point a. The upper slide 8051 records the weight of the rotating nut for the second time. When the upper slide 8051 moves downwards, it drives the lower slide 8052 to move downwards. The upper slide 8051 and the lower slide 8052 maintain a constant distance, and thus the measurement point a and the measurement point b maintain a constant distance.

[0048] The robotic arm 5 moves the rotating nut toward the injection gun 4. During this movement, the motor 8061 drives the transmission disc 8065 to rotate via the drive gear 8062, driven gear 8063, and transmission rod 8064. The friction between the rotating transmission disc 8065 and the connecting rod 8042 causes the connecting rod 8042 to rotate. At this time, the torsion spring 8043 applies force. When the connecting rod 8042 rotates, it drives the rotating nut to rotate via the gripper 9, displaying the entire circumference of the rotating nut, which is convenient for the industrial camera 11 to scan the rotating nut. The mother's information achieves the purpose of reducing the scanning and rotating nut process. At the same time, the driven gear 8063 rotates and drives the transmission rod 8064 to rotate and squeeze the positioning frame 8056, causing the positioning frame 8056 to move to the right and contact the straight cylinder 802, thereby locking the position of the upper slide 8051 and determining the detection point a. When the positioning frame 8056 moves, the energized block 80561 separates from the contact 80541, causing the electromagnet 8054 to disconnect and the magnetic connection between the electromagnet 8054 and the permanent magnet 10 to break.

[0049] During oil spraying, the robotic arm 5 moves the gripper 9 to the oil spraying position, and the oil spray gun 4 moves up to the inner cavity of the rotating nut. The oil spray gun 4 starts spraying oil. At this time, the transmission disc 8065 rotates to the slot 80651 on the side of the connecting rod 8042, and the connecting rod 8042 loses its constraint. The torsion spring 8043 drives the connecting rod 8042 to reset and rotate, which in turn drives the rotating nut to rotate, so that the oil spray gun 4 sweeps across the complete inner circumferential surface of the rotating nut, effectively improving the oil spraying effect on the rotating nut.

[0050] After oil spraying, the oil spray gun 4 moves down and the robotic arm 5 pauses briefly. At this time, the weight of the rotating nut changes. The measuring block 12 records the weight of the rotating nut after oil spraying. The slide column 804 moves down further due to gravity, causing the permanent magnet 10 to move down. Since the distance between the upper slide 8051 and the lower slide 8052 is set to a specified value, the permanent magnet 10 moves down. After the permanent magnet 10 stabilizes, the weight of the rotating nut after oil spraying is recorded a second time. When the permanent magnet 10 is located below the sensor 8053, it indicates that the amount of oil sprayed on the rotating nut meets the standard. When both measurement results meet the standard, the robotic arm 5 sends the rotating nut into the automatic assembly line body 1.

[0051] Although embodiments of the invention have been described, those skilled in the art can make variations and modifications to the embodiments with an understanding of the principles and spirit of the invention, and other effects can be obtained. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent feeding system for a quick-change lock automatic assembly line, used for feeding rotating nuts, installed on the left side of the automatic assembly line body (1), the intelligent feeding system comprising a base (2) and staggered feeding platforms (3), characterized in that: It also includes an injection gun (4), a robotic arm (5), an electric push rod (6), a mounting bracket (7), a detection component (8), a gripper (9), a permanent magnet (10), and a measuring block (12). The injection gun (4) and the robotic arm (5) are both connected to the top of the base (2). The electric push rod (6) is connected to the right side of the end of the robotic arm (5). The mounting bracket (7) is connected to the end of the robotic arm (5), and the lower end of the electric push rod (6) passes through the robotic arm (5) and is connected to the mounting bracket (7). The detection component (8) is connected to the mounting bracket (7), and the measuring block (12) is connected to the lower end of the detection component (8). The gripper (9) is connected to the lower side of the measuring block (12). The weight change of the gripper (9) changes the electronic measurement result of the measuring block (12). The permanent magnet (10) is connected to the upper side inside the detection component (8). After the gripper (9) holds the rotating nut and stabilizes, the weight of the gripper (9) will change, which will cause the permanent magnet (10) to move down, forming detection point a. After oil spraying, the rotating nut is further weighted, which will cause the permanent magnet (10) to move down further, forming detection point b. The result of the height difference between detection point b and detection point a is compared with the electronic measurement result of the measuring block (12) to obtain the pass rate. The front end of the robotic arm (5) is connected to an industrial camera (11). The detection component (8) includes a sleeve (801), a straight cylinder (802), a spring (803), a sliding column (804), a synchronizing element (805), and a transmission element (806). The sleeve (801) is connected to the middle of the mounting frame (7). The straight cylinder (802) is connected to the top of the sleeve (801). The spring (803) and the sliding column (804) are connected from top to bottom to the inner cavity of the sleeve (801), and the sliding column (804) is connected to the lower end of the spring (803). The synchronizing element (805) is connected to the outer wall of the straight cylinder (802). The transmission element (806) is connected to the mounting frame (7). The permanent magnet (10) is connected to the inner cavity of the straight cylinder (802). The inner cavity of the sleeve (801) is connected to the inner cavity of the straight cylinder (802), and the inner diameter of the sleeve (801) is greater than the inner diameter of the straight cylinder (802). The synchronizing element (805) includes an upper slide (8051), a lower slide (8052), a sensor (8053), an electromagnet (8054), a push spring (8055), and a positioning frame (8056). The upper slide (8051) and the lower slide (8052) are both connected to the outer wall of the straight cylinder (802), and the upper slide (8051) passes through the lower slide (8052). The sensor (8053) is connected to the left side of the lower slide (8052). The electromagnet (8054), the push spring (8055), and the positioning frame (8056) are connected to the left side of the upper slide (8051) from right to left. The positioning frame (8056) is slidably connected to the upper slide (8051). The electromagnet (8054) has contacts (80541) connected to both sides. The positioning frame (8056) has energizing blocks (80561) connected to the front and rear sides of the corresponding positions of the contacts (80541). When the positioning frame (8056) is pressed, the positioning frame (8056) causes the contacts (80541) to separate from the energizing blocks (80561), and the right end of the positioning frame (8056) comes into contact with the straight cylinder (802). The transmission component (806) includes a motor (8061), a driving gear (8062), a driven gear (8063), a transmission rod (8064), a transmission disc (8065), and a rotating rod (8066). The motor (8061) is connected to the upper side of the mounting bracket (7), the driving gear (8062) is connected to the upper side of the motor (8061), and the driven gear (8063) meshes with the front side of the driving gear (8062). The transmission rod (8064) is connected to the lower side of the driven gear (8063) and passes through the mounting bracket (7). The transmission disc (8065) ​​is connected to the lower end of the transmission rod (8064). The rotating rod (8066) is connected to the upper side of the driven gear (8063). The right side of the rotating rod (8066) is provided with a flat surface (80661). When the flat surface (80661) is in contact with the positioning bracket (8056), the positioning bracket (8056) is not compressed. The sliding column (804) includes a sliding rod (8041) and a connecting rod (8042). The sliding rod (8041) is connected to the lower side of the spring (803), and the connecting rod (8042) is connected to the lower side of the sliding rod (8041). The longitudinal section of the connecting rod (8042) is stepped. The measuring block (12) is installed on the lower side of the connecting rod (8042), and a strain gauge is connected inside the measuring block (12). The transmission disc (8065) ​​has symmetrical slots (80651) on its left and right sides. The shortest distance between the two slots (80651) on the outer periphery of the transmission disc (8065) ​​is m, which is greater than the minor diameter of the connecting rod (8042). The lower end face of the slide rod (8041) is connected to a torsion spring (8043), and the other end of the torsion spring (8043) is connected to the connecting rod (8042).

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