An automatic eyeglass frame assembly robot

Abstract

The present application relates to the technical field of assembly robots, in particular to an automatic glasses frame assembly robot, which is used to solve the problem that the existing glasses frame assembly equipment is not easy to detect the assembly firmness in time after assembly and send out respectively; the robot comprises a mirror frame conveying mechanism and a distribution mechanism, the mirror frame conveying mechanism comprises a feeding roller; the distribution mechanism comprises a first rotating roller, a second rotating roller and a third rotating roller which are arranged around the side of the feeding roller, the first rotating roller, the second rotating roller and the third rotating roller are jointly connected with a pressing belt, the first rotating roller and the second rotating roller are arranged in a fixed shaft rotating mode, and the third rotating roller can rotate around itself and revolve around the second rotating roller as the center; the robot can detect the assembly firmness of the glasses legs and the glasses frame in time after the glasses frame is assembled, and distribute according to the assembly quality.

Description

Technical Field

[0001] This invention relates to the field of assembly robot technology, specifically to an automatic assembly robot for eyeglass frames. Background Technology

[0002] As the core component of eyeglasses, the assembly process of eyeglass frames mainly includes the connection and assembly of the frame and temples. The efficiency and quality of this process directly determine the overall production efficiency, yield rate and manufacturing cost of eyeglasses products, and it is one of the key links in the eyeglasses manufacturing process.

[0003] Currently, most companies have not yet achieved fully automated assembly. Some companies still rely on manual labor to assemble and sort frames and temples. The manual assembly model has many inherent drawbacks: On the one hand, manual operation is labor-intensive and repetitive, and long-term operation can easily lead to operator fatigue, resulting in assembly deviations, such as insecure temple installation or misalignment. This not only affects the consistency of product quality but also leads to an increase in defective products. According to relevant quality inspection results, many defects in the eyeglass frame assembly process are related to insufficient assembly precision and lax quality control. On the other hand, manual assembly is inefficient and difficult to adapt to the needs of large-scale production. Moreover, labor costs account for 25%-30% of the total cost of the eyewear manufacturing industry, which is significantly higher than the average level of the manufacturing industry. With the increasing prominence of labor shortages, the manual assembly model can no longer meet the needs of the industry's large-scale development.

[0004] To address the drawbacks of manual assembly, some companies have introduced simple automated assembly equipment to attempt to automate the assembly of eyeglass frames. However, existing automated assembly equipment still has many shortcomings and cannot meet the production requirements of high efficiency, precision, and categorized processing: most equipment can only perform simple assembly of frames and temples, and it is not easy to perform real-time defect identification and classification output of the assembled eyeglass frames. After assembly, manual sorting of qualified and defective products is still required, which adds extra labor costs and work processes, and the sorting efficiency is low and sorting errors are prone to occur.

[0005] The eyewear manufacturing industry is gradually transforming towards intelligent manufacturing, and intelligent assembly systems have become the forefront of industry development. However, there are still shortcomings in its core technologies. Most existing assembly equipment has not achieved integrated collaboration between assembly and sorting, resulting in defective products being mixed with qualified products and increasing the workload of subsequent quality inspection and rework. Summary of the Invention

[0006] This invention provides an automated eyeglass frame assembly robot to solve the problem that existing eyeglass frame assembly equipment is not easy to detect the assembly firmness in a timely manner after assembly and to send them out separately.

[0007] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0008] An automatic assembly robot for eyeglass frames includes an eyeglass frame conveying mechanism and a dispensing mechanism. The eyeglass frame conveying mechanism includes a feeding roller, and the side wall of the feeding roller has a plurality of placement slots arranged in a circular array. The eyeglass frames to be assembled are embedded in the placement slots.

[0009] The dispensing mechanism includes a first roller, a second roller, and a third roller surrounding the side of the feeding roller. A pressure belt is connected to the first roller, the second roller, and the third roller in a common driving connection. The first roller and the second roller are fixed-axis rotating configurations. The third roller is capable of rotating on its own axis and revolving around the second roller as the center. When the third roller is in a first position, it is close to the feeding roller, and the assembled eyeglass frame is fed out by the pressure belt in a first direction. When the third roller revolves around the second roller and moves away from the feeding roller to a second position, the assembled eyeglass frame with defects is fed out by the pressure belt in a second direction.

[0010] Furthermore, it also includes a support mechanism, which includes a worktable with a notch and a guide plate installed in the notch. The guide plate is located in the first direction of the material discharge from the pressure belt.

[0011] Furthermore, the dispensing mechanism also includes an arc-shaped rack, the center of which is coaxial with the second roller. The third roller is rotatably connected to the end of the arc-shaped rack. The workbench has an arc-shaped hole that mates with the arc-shaped rack and is rotatably connected to a rotating shaft. A first gear that meshes with the arc-shaped rack is mounted on the rotating shaft. When the rotating shaft rotates, it can drive the arc-shaped rack to slide, so that the third roller can revolve around the second roller.

[0012] Furthermore, it also includes a temple assembly mechanism, which includes a column with a turntable rotatably connected to it. Multiple grippers are mounted in a circular array on the lower surface of the turntable. The grippers are used to grasp the temples, and when the turntable rotates, the temples can be transferred to the assembly position through the grippers.

[0013] Furthermore, a robotic arm is installed at the top of the column, and an electric screwdriver is installed at the end of the robotic arm. The electric screwdriver can pick up screws and install them on the temples and frames, thereby completing the assembly of the eyeglass frame.

[0014] Furthermore, the gripper includes an upper gripper and a lower gripper, and an electric telescopic rod is connected between the upper gripper and the lower gripper. When the electric telescopic rod is shortened, the lower gripper can move closer to the upper gripper, thereby gripping the temple of the eyeglass.

[0015] Furthermore, a rotating rod is rotatably connected to the upper clamp, a baffle is fixedly connected to the middle of the rotating rod, and a torsion spring is connected between the end of the rotating rod and the upper clamp. After the clamp holds the temple of the lens, the baffle can approach the lower clamp.

[0016] When the turntable rotates, it can move the gripper out of the assembly position. When the gripper moves out of the assembly position, the electric telescopic rod extends slightly to remove the clamping force on the temple. Also, when the temple is firmly installed in the frame, during the relative movement of the gripper and the temple, the temple can push the baffle to flip and thus disengage from the gripper. When the temple is not firmly installed in the frame, the gripper can drive the temple away from the frame through the baffle.

[0017] When the gripper moves out of the assembly position and the baffle swings, the rotating shaft does not rotate, so the assembled eyeglass frame is sent out in the first direction by the pressure belt. When the gripper moves out of the assembly position and the baffle does not swing, the rotating shaft rotates, so the assembled eyeglass frame with defects is sent out in the second direction by the pressure belt.

[0018] Furthermore, the dispensing mechanism also includes a support that slides vertically on the worktable. A stop bar is installed on the upper part of the support and a rack is installed on the lower part. A second gear that meshes with the rack is installed on the rotating shaft. When the rotating shaft rotates so that the assembled eyeglass frame with defects is sent out in the second direction by the pressure belt, the support moves upward synchronously. The stop bar blocks the temple on the gripper that moves out of the workstation, thereby causing the unassembled temple to disengage from the gripper.

[0019] Furthermore, it also includes a temple conveying mechanism, which comprises a first conveyor belt and a second conveyor belt arranged symmetrically at the top and bottom, with the temple to be installed held between the first conveyor belt and the second conveyor belt.

[0020] Furthermore, the first conveyor belt and the second conveyor belt are respectively equipped with a plurality of first clamping blocks and a plurality of second clamping blocks, with the plurality of first clamping blocks and the plurality of second clamping blocks corresponding one-to-one. The temple is clamped between the first clamping blocks and the second clamping blocks. When the first conveyor belt and the second conveyor belt run synchronously, the temple can be transported to the gripper. After the gripper clamps the temple, the clamped temple moves to the end of the first conveyor belt and the second conveyor belt, and the first conveyor belt and the second conveyor belt continue to move so that the first clamping blocks and the second clamping blocks separate.

[0021] The beneficial effects of this invention are analyzed as follows:

[0022] An automated eyeglass frame assembly robot includes a frame conveying mechanism and a dispensing mechanism. The frame conveying mechanism includes a feeding roller with multiple placement slots arranged in a circular array on its side wall, into which the eyeglass frames to be assembled are embedded. The dispensing mechanism includes a first rotating roller, a second rotating roller, and a third rotating roller surrounding the side of the feeding roller. A pressure belt is connected to the first, second, and third rotating rollers for transmission. The first and second rotating rollers are fixed-axis rotating, and the third rotating roller is capable of rotating on its own axis and revolving around the second rotating roller. When the third rotating roller is in a first position, it is close to the feeding roller, and the assembled eyeglass frames are conveyed out towards the first direction by the pressure belt. When the third rotating roller revolves around the second rotating roller and moves away from the feeding roller to a second position, the assembled eyeglass frames with defects are conveyed out towards the second direction by the pressure belt.

[0023] The eyeglass frame conveying mechanism includes a material cylinder fixedly positioned above a feeding roller. Both ends of the cylinder are open. Eyeglass frames to be assembled are placed inside the cylinder through the upper opening. Under gravity, the frames fall from the lower opening into a placement groove on the side wall of the feeding roller. A C-shaped pressure belt presses against the side of the feeding roller. The feeding roller rotates in the direction of the pressure belt, which firmly presses the frames into the placement groove. After the feeding roller rotates, the frames in the placement groove are sequentially fitted with temples. Frames with temples firmly attached to the frames are considered fully assembled frames; frames with temples not firmly attached to the frames are considered partially assembled frames. If the eyeglass frame with defects is a completed eyeglass frame, the third roller will not revolve relative to the second roller. The position of the third roller remains unchanged and is in the first position. At this time, the conveying direction of the pressure belt is the first direction, so the completed eyeglass frame is sent out in the first direction for subsequent processing. If the eyeglass frame has defects after assembly, the third roller will revolve around the second roller as its axis. At this time, the third roller will be away from the feeding roller and in the second position, so that the pressure belt can send the assembled eyeglass frame with defects in the second direction. This allows the assembled eyeglass frames and the defective eyeglass frames to be sorted and output for subsequent processing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the feeding roller of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the turntable in this invention;

[0028] Figure 5 This is a schematic diagram of the temple conveying mechanism of the present invention;

[0029] Figure 6 For the present invention Figure 5 A schematic diagram of the structure of part A;

[0030] Figure 7 This is a schematic diagram of the dispensing mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the gripper of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the baffle in this invention.

[0033] In the diagram: 100, Support mechanism; 110, Workbench; 120, Notch; 200, Frame conveying mechanism; 210, Material cylinder; 220, Feeding roller; 230, Placement groove; 300, Temple conveying mechanism; 310, First conveyor belt; 311, First clamping block; 320, Second conveyor belt; 321, Second clamping block; 400, Temple assembly mechanism; 410, Column; 420, Turntable; 430, Gripper; 431, Upper clamping seat; 432, Lower clamping seat ; 433, Electric telescopic rod; 434, Rotating rod; 435, Baffle; 436, Torsion spring; 440, Robotic arm; 450, Electric screwdriver; 500, Distributing mechanism; 510, First rotating roller; 520, Second rotating roller; 530, Third rotating roller; 540, Pressure belt; 550, Guide plate; 560, Arc-shaped rack; 570, Rotating shaft; 571, First gear; 572, Second gear; 580, Bracket; 581, Straight rack; 582, Stop bar. Detailed Implementation

[0034] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Examples, such as Figures 1-9As shown, an automated eyeglass frame assembly robot includes a frame conveying mechanism 200 and a dispensing mechanism 500. The frame conveying mechanism 200 includes a feeding roller 220, and the side wall of the feeding roller 220 has a plurality of placement slots 230 arranged in a circular array. The eyeglass frames to be assembled are embedded in the placement slots 230. The dispensing mechanism 500 includes a first rotating roller 510, a second rotating roller 520, and a third rotating roller 530 surrounding the side of the feeding roller 220. The first rotating roller 510, the second rotating roller 520, and the third rotating roller 530 share a common conveying mechanism. The device is dynamically connected to a pressure belt 540. The first roller 510 and the second roller 520 are fixed-axis rotating. The third roller 530 can rotate on its own axis and revolve around the second roller 520. When the third roller 530 is in the first position, it is close to the feeding roller 220. The assembled eyeglass frame is fed out by the pressure belt 540 in the first direction. When the third roller 530 revolves around the second roller 520 and moves away from the feeding roller 220 to the second position, the assembled eyeglass frame with defects is fed out by the pressure belt 540 in the second direction.

[0036] The working mechanism of the automatic eyeglass frame assembly robot provided in this embodiment is as follows:

[0037] The eyeglass frame conveying mechanism 200 includes a material cylinder 210 fixedly positioned above a feeding roller 220. Both ends of the material cylinder 210 are open. Eyeglass frames to be assembled are placed inside the material cylinder 210 through the upper port. Under gravity, the frames fall from the lower port of the material cylinder 210 into a placement groove 230 on the side wall of the feeding roller 220. A pressure belt 540 presses against the side of the feeding roller 220 in a C-shape. The feeding roller 220 rotates in the direction of the pressure belt 540, which firmly presses the eyeglass frames into the placement groove 230. After the feeding roller 220 rotates, the eyeglass frames that have fallen into the placement groove 230 are sequentially fitted with temples. Eyeglass frames with temples firmly attached to the frames are considered assembled eyeglass frames. Eyeglass frames with temples not firmly attached are considered assembled frames. If the eyeglass frame on the frame is a defective frame after assembly, and it is a completed frame, then the third roller 530 will not revolve relative to the second roller 520. The position of the third roller 530 remains unchanged and is in the first position. At this time, the conveying direction of the pressure belt 540 is the first direction, so the completed eyeglass frame is sent out in the first direction for subsequent processing. If it is a defective frame after assembly, then the third roller 530 revolves around the second roller 520 as an axis. At this time, the third roller 530 is away from the feeding roller 220 and is in the second position, so the pressure belt 540 can send the defective eyeglass frame out in the second direction, so that the assembled eyeglass frames and the defective eyeglass frames are sorted and output for subsequent processing.

[0038] In addition, a visual inspection structure can be used to detect whether the eyeglass frame is properly assembled, and the operation of the third roller 530 can be controlled by the result of the visual inspection. The control principle is the same as the visual inspection and fruit screening equipment in the existing device. Alternatively, the assembly status of the eyeglass frame can be detected by pulling the temples as provided in this embodiment.

[0039] Among the optional methods in this embodiment, the more preferred one is:

[0040] It also includes a support mechanism 100, which includes a worktable 110. The worktable 110 has a notch 120, and a guide plate 550 is installed in the notch 120. The guide plate 550 is located in the first direction of the material discharge of the pressure belt 540.

[0041] The workbench 110 provides installation support for the entire device. The notch 120 on the workbench 110 serves to provide clearance for the output of the eyeglass frame. The guide plate 550 is installed in the notch 120 to guide and deliver the assembled eyeglass frame in good condition.

[0042] Among the optional methods in this embodiment, the more preferred one is:

[0043] The dispensing mechanism 500 also includes an arc-shaped rack 560, the center of which is coaxial with the second roller 520. The third roller 530 is rotatably connected to the end of the arc-shaped rack 560. The worktable 110 has an arc-shaped hole that mates with the arc-shaped rack 560 and is rotatably connected to a rotating shaft 570. A first gear 571 that meshes with the arc-shaped rack 560 is mounted on the rotating shaft 570. When the rotating shaft 570 rotates, it can drive the arc-shaped rack 560 to slide, so that the third roller 530 can revolve around the second roller 520.

[0044] The center of the arc-shaped rack 560 is located on the axis of the second roller 520. When the rotating shaft 570 rotates, it can drive the first gear 571 to rotate. At this time, the first gear 571 drives the arc-shaped rack 560 to slide, so that the arc-shaped rack 560 slides in the arc-shaped hole. At this time, the arc-shaped rack 560 drives the third roller 530 to revolve around the second roller 520 as the axis, so that the well-assembled and defective eyeglass frames are separated and sent out in the first direction and the second direction respectively.

[0045] Among the optional methods in this embodiment, the more preferred one is:

[0046] It also includes a temple assembly mechanism 400, which includes a column 410 and a turntable 420 rotatably connected to the column 410. Multiple grippers 430 are mounted in a circular array on the lower surface of the turntable 420. The grippers 430 are used to grip the temples. When the turntable 420 rotates, the temples can be transferred to the assembly position through the grippers 430.

[0047] The turntable 420 rotates on the column 410. The rotation between the turntable 420 and the column 410 can be driven by a servo motor in conjunction with a gear ring meshing. The servo motor can be installed on the turntable 420 or the column 410, and the gear is installed on the output end of the servo motor. Driven by the servo motor, the turntable 420 rotates intermittently at the same angle, so that the gripper 430 picks up the temple in sequence and sends the temple to the installation position.

[0048] Among the optional methods in this embodiment, the more preferred one is:

[0049] A robotic arm 440 is mounted on the top of the column 410, and an electric screwdriver 450 is mounted on the end of the robotic arm 440. The electric screwdriver 450 can pick up screws and install them on the temples and frames, thereby completing the assembly of the eyeglass frame.

[0050] The robotic arm 440 controls the movement of the electric screwdriver 450. The running trajectory of the electric screwdriver 450 is set through the PLC program. The electric screwdriver 450 has magnetic attraction and is also equipped with a screw tray (not shown in the figure). Screws are placed on the screw tray. The setting of the screw tray can be similar to the tool changing structure of a CNC machine tool.

[0051] Among the optional methods in this embodiment, the more preferred one is:

[0052] The gripper 430 includes an upper gripper 431 and a lower gripper 432. An electric telescopic rod 433 is connected between the upper gripper 431 and the lower gripper 432. When the electric telescopic rod 433 is shortened, the lower gripper 432 can approach the upper gripper 431, thereby gripping the temple of the glasses.

[0053] When the gripper 430 grasps the temple, the electric telescopic rod 433 extends, at which time the upper clamp 431 and the lower clamp 432 move away from each other to prepare for grasping the temple. When the temple is transported between the two, the electric telescopic rod 433 shortens, and the gripper 430 clamps the temple.

[0054] Among the optional methods in this embodiment, the more preferred one is:

[0055] A rotating rod 434 is rotatably connected to the upper clamp 431. A baffle 435 is fixedly connected to the middle of the rotating rod 434, and a torsion spring 436 is connected between the end of the rod and the upper clamp 431. After the clamp 430 holds the temple, the baffle 435 can move closer to the lower clamp 432. When the turntable 420 rotates, it can drive the clamp 430 to move out of the assembly position. When the clamp 430 moves out of the assembly position, the electric telescopic rod 433 extends slightly to remove the clamping force on the temple. And, when the temple is firmly installed in the frame, the relative movement process between the clamp 430 and the temple. In the process, the temple can push the baffle 435 to flip and thus disengage from the clamp 430. When the temple is not securely installed on the frame, the clamp 430 can drive the temple away from the frame through the baffle 435. When the clamp 430 moves out of the assembly position and the baffle 435 swings, the rotating shaft 570 does not rotate, so the assembled eyeglass frame is sent out in the first direction by the pressure belt 540. When the clamp 430 moves out of the assembly position and the baffle 435 does not swing, the rotating shaft 570 rotates, so the assembled eyeglass frame with defects is sent out in the second direction by the pressure belt 540.

[0056] After the temple is installed into the frame, the turntable 420 continues to rotate. The current gripper 430 moves away from the assembly station, and the next gripper 430 that grabs the temple moves closer to the assembly station. When the current gripper 430 moves away from the assembly station, the electric telescopic rod 433 extends slightly to release the clamping force on the temple. If the temple is securely installed into the frame, the temple can push the baffle 435 to swing when the gripper 430 moves away from the current station, so that the temple can move out between the upper clamp 431 and the lower clamp 432. If the temple is not securely installed into the frame, the temple will not push the baffle 435 to flip, so that the baffle 435 can push the temple away from the frame. At this time, the baffle 435 will not flip, and the gripper 430 will drive the temple away from the current station.

[0057] An angle sensor can be installed at the baffle 435 or the rotating rod 434. The system first obtains the current position of the gripper 430 by the rotation angle of the turntable 420. When the gripper 430 moves to the assembly position, the angle sensor at the baffle 435 is activated. When this angle sensor detects that the baffle 435 flips at an angle close to ninety degrees or the flip angle is sufficient to move the temple away from the upper clamp 431 and the lower clamp 432, the rotating shaft 570 starts to rotate, which drives the arc rack 560 to slide, thereby causing the assembled eyeglass frame with defects to be sent out in the second direction.

[0058] The rotation of the 570 shaft can be controlled by a servo motor, which operates in response to system commands.

[0059] Among the optional methods in this embodiment, the more preferred one is:

[0060] The dispensing mechanism 500 also includes a support 580 that slides vertically on the worktable 110. A stop bar 582 is installed on the upper part of the support 580 and a rack 581 is installed on the lower part. A second gear 572 that meshes with the rack 581 is installed on the rotating shaft 570. When the rotating shaft 570 rotates so that the assembled eyeglass frame with defects is sent out in the second direction by the pressure belt 540, the support 580 moves upward in sync. The stop bar 582 blocks the temple on the gripper 430 that moves out of the station, thereby causing the unassembled temple to disengage from the gripper 430.

[0061] When the temples of the assembled eyeglass frame are defective, they will be moved away from the assembly position by the gripper 430. When the rotating shaft 570 rotates, it will also drive the rack 581 to move upward through the second gear 572, thereby causing the bracket 580 to move upward. At this time, the stop bar 582 moves to both sides of the gripper 430, which will block the temples on the gripper 430. This will prevent the temples that have not yet been separated from the gripper 430 from being separated from the gripper 430 from being separated from the gripper 430, thus preventing the gripper 430 from being unable to hold the temples smoothly in the future.

[0062] Among the optional methods in this embodiment, the more preferred one is:

[0063] It also includes a temple conveying mechanism 300, which includes a first conveyor belt 310 and a second conveyor belt 320 arranged symmetrically at the top and bottom, with the temple to be installed held between the first conveyor belt 310 and the second conveyor belt 320.

[0064] The output ends of the two conveyor belts are located at the temple assembly mechanism 400, which enables the temples to be transported to the gripper 430 on the turntable 420 for loading.

[0065] Among the optional methods in this embodiment, the more preferred one is:

[0066] Multiple first locking blocks 311 and second locking blocks 321 are respectively installed on the first conveyor belt 310 and the second conveyor belt 320. The multiple first locking blocks 311 and the multiple second locking blocks 321 are in one-to-one correspondence and cooperate. The temples are clamped between the first locking blocks 311 and the second locking blocks 321. When the first conveyor belt 310 and the second conveyor belt 320 run synchronously, the temples can be transported to the gripper 430. After the gripper 430 clamps the temples, the clamped temples move to the ends of the first conveyor belt 310 and the second conveyor belt 320, and the first conveyor belt 310 and the second conveyor belt 320 continue to move so that the first locking blocks 311 and the second locking blocks 321 separate.

[0067] Two clamps on the two conveyor belts clamp one temple of the mirror, so that the temple is firmly clamped and the position of the clamped temple is not easily changed. When the temple is conveyed to the ends of the two conveyor belts, the gripper 430 clamps the temple, while the first clamp 311 and the second clamp 321 move away from each other, so that the temple is released from the fixation of the first clamp 311 and the second clamp 321.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated assembly robot for eyeglass frames, characterized in that: The system includes a frame conveying mechanism (200) and a dispensing mechanism (500). The frame conveying mechanism (200) includes a feeding roller (220). The side wall of the feeding roller (220) is provided with a plurality of placement slots (230) arranged in a ring array. The frame to be assembled is embedded in the placement slot (230). The dispensing mechanism (500) includes a first rotating roller (510), a second rotating roller (520), and a third rotating roller (530) surrounding the side of the feeding roller (220). A pressure belt (540) is connected to the first rotating roller (510), the second rotating roller (520), and the third rotating roller (530) for common transmission. The first rotating roller (510) and the second rotating roller (520) are fixed-axis rotating. The third rotating roller (530) is capable of rotating on its own axis and revolving around the second rotating roller (520). When the third rotating roller (530) is in the first position, it is close to the feeding roller (220), and the assembled eyeglass frame is fed out by the pressure belt (540) in the first direction. When the third rotating roller (530) revolves around the second rotating roller (520) and moves away from the feeding roller (220) to the second position, the assembled eyeglass frame with defects is fed out by the pressure belt (540) in the second direction.

2. The automatic assembly robot for eyeglass frames according to claim 1, characterized in that: It also includes a support mechanism (100), which includes a workbench (110) with a notch (120) on the workbench (110) and a guide plate (550) installed in the notch (120). The guide plate (550) is located in the first direction of the material discharge of the pressure belt (540).

3. The automatic assembly robot for eyeglass frames according to claim 2, characterized in that: The dispensing mechanism (500) also includes an arc-shaped rack (560), the center of which is coaxial with the second roller (520). The third roller (530) is rotatably connected to the end of the arc-shaped rack (560). The worktable (110) has an arc-shaped hole that mates with the arc-shaped rack (560) and a rotating shaft (570) that is rotatably connected thereto. A first gear (571) that meshes with the arc-shaped rack (560) is mounted on the rotating shaft (570). When the rotating shaft (570) rotates, it can drive the arc-shaped rack (560) to slide, so that the third roller (530) can revolve around the second roller (520).

4. The automatic eyeglass frame assembly robot according to claim 3, characterized in that: It also includes a temple assembly mechanism (400), which includes a column (410) and a turntable (420) rotatably connected to the column (410). Multiple grippers (430) are installed in a circular array on the lower surface of the turntable (420). The grippers (430) are used to grip the temples. When the turntable (420) rotates, the temples can be transferred to the assembly position through the grippers (430).

5. The automatic assembly robot for eyeglass frames according to claim 4, characterized in that: A robotic arm (440) is installed at the top of the column (410), and an electric screwdriver (450) is installed at the end of the robotic arm (440). The electric screwdriver (450) can pick up screws and install them on the temples and frames, thereby completing the assembly of the eyeglass frame.

6. The automatic assembly robot for eyeglass frames according to claim 5, characterized in that: The gripper (430) includes an upper gripper (431) and a lower gripper (432). An electric telescopic rod (433) is connected between the upper gripper (431) and the lower gripper (432). When the electric telescopic rod (433) is shortened, the lower gripper (432) can approach the upper gripper (431) to clamp the temple of the glasses.

7. The automatic assembly robot for eyeglass frames according to claim 6, characterized in that: A rotating rod (434) is rotatably connected to the upper clamp (431). A baffle (435) is fixedly connected to the middle of the rotating rod (434), and a torsion spring (436) is connected between the end of the rod and the upper clamp (431). After the clamp (430) holds the temple, the baffle (435) can approach the lower clamp (432). When the turntable (420) rotates, it can drive the gripper (430) to move out of the assembly position. When the gripper (430) moves out of the assembly position, the electric telescopic rod (433) extends slightly to remove the clamping force on the temple. When the temple is firmly installed in the frame, during the relative movement of the gripper (430) and the temple, the temple can push the baffle (435) to flip and thus disengage from the gripper (430). When the temple is not firmly installed in the frame, the gripper (430) can drive the temple away from the frame through the baffle (435). When the gripper (430) moves out of the assembly position and the baffle (435) swings, the shaft (570) does not rotate, so the assembled eyeglass frame is sent out by the pressure belt (540) in the first direction. When the gripper (430) moves out of the assembly position and the baffle (435) does not swing, the shaft (570) rotates, so the assembled eyeglass frame with defects is sent out by the pressure belt (540) in the second direction.

8. The automatic assembly robot for eyeglass frames according to claim 7, characterized in that: The dispensing mechanism (500) also includes a bracket (580) that slides vertically on the worktable (110). A stop bar (582) is installed on the upper part of the bracket (580) and a rack (581) is installed on the lower part. A second gear (572) that meshes with the rack (581) is installed on the rotating shaft (570). When the rotating shaft (570) rotates so that the assembled eyeglass frame with defects is sent out in the second direction by the pressure belt (540), the bracket (580) moves upward synchronously. The stop bar (582) blocks the temple on the gripper (430) that moves out of the workstation, thereby causing the unassembled temple to disengage from the gripper (430).

9. The automatic assembly robot for eyeglass frames according to claim 8, characterized in that: It also includes a temple conveying mechanism (300), which includes a first conveyor belt (310) and a second conveyor belt (320) arranged symmetrically at the top and bottom, and the temple to be installed is clamped between the first conveyor belt (310) and the second conveyor belt (320).

10. The automatic assembly robot for eyeglass frames according to claim 9, characterized in that: Multiple first clamping blocks (311) and second clamping blocks (321) are respectively installed on the first conveyor belt (310) and the second conveyor belt (320). The multiple first clamping blocks (311) and the multiple second clamping blocks (321) are in one-to-one correspondence. The temple is clamped between the first clamping block (311) and the second clamping block (321). When the first conveyor belt (310) and the second conveyor belt (320) run synchronously, the temple can be transported to the gripper (430). After the gripper (430) clamps the temple, the clamped temple moves to the end of the first conveyor belt (310) and the second conveyor belt (320), and the first conveyor belt (310) and the second conveyor belt (320) continue to move so that the first clamping block (311) and the second clamping block (321) separate.

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