An automatic welding device for eyeglass accessories

Abstract

This invention discloses an automatic welding device for eyeglasses accessories, relating to the field of eyeglasses accessory processing technology. It includes a base with two frame mounting mechanisms. Each frame mounting mechanism includes a rotatable mounting positioning seat with evenly distributed mounting grooves. A fitting mold seat is fitted into each mounting groove, and an eyeglass frame is fitted onto the upper surface of the fitting mold seat. An inspection mechanism is provided between the two frame mounting mechanisms to check the bending shape of the eyeglass frame. A transfer mechanism is provided on the base, including a fitting fixing mold. The lower end face of the fitting fixing mold fits against the upper surface of the fitting mold seat, limiting the position of the eyeglass frame. This invention can perform welding on eyeglass frames, achieving accurate positioning and preventing deformation of the eyeglass frame during welding, thereby improving work efficiency and ensuring production quality.

Description

Technical Field

[0001] This invention relates to the field of eyeglass parts processing technology, and in particular to an automatic welding device for eyeglass parts. Background Technology

[0002] Eyeglasses components come in a wide variety, such as frames, lenses, and nose pads. Frames are made of different materials, such as metal, plastic, and titanium alloy. In current eyeglass manufacturing, frames are connected to the central support structure by welding. However, eyeglass frames are curved structures, making positioning and alignment difficult during welding, and they are prone to deformation. Existing welding equipment cannot effectively solve this technical problem. Therefore, this invention proposes a welding device that can weld eyeglass frames, achieving accurate positioning and preventing deformation during welding, thereby improving work efficiency and ensuring production quality. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention allows for welding of the eyeglass frame, achieving accurate positioning and preventing deformation during welding, thereby improving work efficiency and ensuring production quality.

[0004] The present invention provides an automatic welding device for eyeglass accessories, comprising a base, on which two frame mounting mechanisms are mounted. Each frame mounting mechanism includes a rotatably mounted positioning seat with evenly distributed mounting grooves. A fitting mold seat is fitted into each mounting groove, and an eyeglass frame is fitted onto the upper surface of the fitting mold seat. An inspection mechanism is provided between the two frame mounting mechanisms to inspect the bending shape of the eyeglass frame. A transfer mechanism is provided on the base, comprising a fitting fixing mold, the lower end face of which is flush with the fitting mold seat. The upper surface is fitted and the frame is limited; a fixing part is provided on the inner side of the fitting mold base, and a positioning hole is provided on the fixing part; a fixing cylinder is provided on the inner side of the fitting and fixing mold, and an electromagnetic fixing shaft is provided on the fixing cylinder. The fixing cylinder cooperates with the fixing part, and the electromagnetic fixing shaft cooperates with the positioning hole to fix the fitting mold base and the fitting and fixing mold; a bracket mounting mechanism is provided on one side of the base for positioning and installing the connecting bracket; a second transfer mechanism is provided on the base for transferring the connecting bracket. The two ends of the connecting bracket are respectively connected to the two frames for welding.

[0005] Furthermore, the frame mounting mechanism includes a mounting shaft fixedly mounted on the base, a mounting positioning seat rotatably mounted on the mounting shaft, a mounting plate connected to the top of the mounting shaft, an inspection mechanism mounted on the mounting plate, and a transfer mechanism also mounted on the mounting plate; a gear ring is provided at the bottom of the mounting positioning seat, a control motor is provided on the base, a belt structure is provided on the output shaft of the control motor, a rotating shaft is rotatably mounted on the base, gears are fixedly mounted at both ends of the rotating shaft, the gears mesh with the gear ring, and the rotating shaft is driven by the belt structure on the output shaft of the control motor.

[0006] Furthermore, limiting rods are evenly arranged on the mounting and positioning base to limit the mirror frame. The limiting rods are located outside the mounting groove. A mating groove is provided on the mounting groove. A mating seat is provided at the bottom of the fitting mold base. The mating seat mates with the mating groove.

[0007] Furthermore, the inspection mechanism includes a motor and a lead screw mounted on a mounting plate. The motor drives the lead screw. A slide block is slidably mounted on the mounting plate, forming a helical pair with the lead screw. A motor and a lead screw are mounted on the slide block, with the motor driving the lead screw. A slide block is slidably mounted on the slide block, forming a helical pair with the lead screw. A motor and a lead screw are mounted on the slide block, with the motor driving the lead screw. A slide block is slidably mounted on the slide block, forming a helical pair with the lead screw. A control cylinder is mounted on the slide block. A connecting plate is mounted on the telescopic rod of the control cylinder. A contact rod is telescopically mounted on the connecting plate. A spring is connected between the contact rod and the connecting plate to provide elastic force. A displacement sensor is mounted between the end of the contact rod and the connecting plate. The displacement sensor outputs a feedback signal of the contact rod's displacement. The contact rod moves and contacts the surface of the frame, extending and retracting according to the bending shape of the frame to inspect the bending shape of the frame.

[0008] Furthermore, the transfer mechanism includes a motor, a guide rod, and a lead screw mounted on a mounting plate. The motor drives the lead screw. A slide block is movably mounted on the guide rod and the lead screw, forming a helical pair with the lead screw. A position cylinder is mounted on the slide block, and a position frame is mounted on the telescopic rod of the position cylinder. A motor and a lead screw are mounted on the position frame, and two docking frames are slidably mounted on the position frame. The docking frames and the lead screw form a helical pair, and one end of the docking frame is fixedly connected to the bonding and fixing mold. A fixing cylinder is mounted on the bonding and fixing mold, and the telescopic rod of the fixing cylinder is fixedly connected to the fixing cylinder.

[0009] Furthermore, an adjusting electric cylinder is provided on the base and on both sides of the transfer mechanism two. A support frame is provided on the telescopic rod of the adjusting electric cylinder, and a welding arm is provided on the side of the support frame for welding processing.

[0010] Furthermore, the transfer mechanism 2 includes a motor 6 and a lead screw 6 mounted on the base. The motor 6 drives the lead screw 6. A transfer frame is slidably mounted on the base. The transfer frame and the lead screw 6 form a helical pair. A clamping electric cylinder is provided at the top of the transfer frame. A clamping plate is provided on the telescopic rod of the clamping electric cylinder. The clamping plate is used to clamp the connecting bracket.

[0011] Furthermore, the bracket mounting mechanism includes an azimuth motor fixedly mounted on the base and an azimuth shaft rotatably mounted on the base. The azimuth shaft is driven by the azimuth motor, and a mounting plate is provided at the top of the azimuth shaft. Positioning parts are evenly arranged on the mounting plate, and the positioning parts are used to position and install the connecting bracket.

[0012] The advantages of this invention compared with the prior art are: (1) The frame is placed on the bonding mold base and limited by the limiting rod. The upper surface of the bonding mold base is in contact with the frame. That is, the operator can perform mold opening processing on the bonding mold base according to the structural design of the frame so that the frame can be in contact with the upper surface of the bonding mold base to prevent the frame from deforming under force; (2) In this invention, each frame can be inspected before welding. The contact rod moves and contacts the frame. If the frame is in contact with the bonding mold base, If the displacement of the contact rod does not exceed the preset value, the bending shape of the frame is judged to meet the standard. If the displacement of the contact rod exceeds the preset value, the bending shape of the frame is judged to not meet the standard. (3) The bonding and fixing mold is located above the frame. The bonding and fixing mold and the bonding mold base are connected and matched. That is, the lower end face of the bonding and fixing mold is bonded to the upper surface of the bonding mold base. The frame is located between the bonding and fixing mold and the bonding mold base. The lower end face of the bonding and fixing mold is also molded according to the design structure of the frame. The frame can be positioned and fixed to prevent deformation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle.

[0015] Figure 3 This is a schematic diagram of the inspection mechanism structure of the present invention.

[0016] Figure 4 For the present invention Figure 3 A schematic diagram of the structure at the A mark in the middle.

[0017] Figure 5 This is a schematic diagram of the mounting and positioning seat structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the bonding mold base structure of the present invention.

[0019] Figure 7 This is a schematic diagram of the transfer mechanism of the present invention.

[0020] Figure 8 This is a schematic diagram of the bonding and fixing mold structure of the present invention.

[0021] Figure 9 This is a schematic diagram of the bottom structure of the bonding and fixing mold of the present invention.

[0022] Figure 10 This is a schematic diagram of the support frame installation structure of the present invention.

[0023] Figure 11 For the present invention Figure 10 Schematic diagram of the structure at the B mark.

[0024] Figure 12 This is a schematic diagram of the installation disk structure of the present invention.

[0025] Reference numerals: 1-Base; 2-Mounting shaft; 3-Mounting plate; 4-Motor 1; 5-Lead screw 1; 6-Mounting positioning seat; 7-Gear ring; 8-Gear; 9-Rotating shaft; 10-Control motor; 11-Motor 2; 12-Slide 1; 13-Motor 3; 14-Lead screw 3; 15-Slide 3; 16-Motor 4; 17-Lead screw 4; 18-Slide 4; 19-Control electric cylinder; 20-Connecting plate; 21-Displacement sensor; 22-Contact rod; 23-Spring; 24-Limit rod; 25-Matching groove; 26-Fitting mold base; 27-Matching seat; 28-Fixing part ; 29-Mirror frame; 30-Guide rod 2; 31-Lead screw 2; 32-Slide 2; 33-Positioning electric cylinder; 34-Positioning frame; 35-Motor 5; 36-Lead screw 5; 37-Dating frame; 38-Fitting and fixing mold; 39-Fixing electric cylinder; 40-Fixing cylinder; 41-Electromagnetic fixing shaft; 42-Motor 6; 43-Lead screw 6; 44-Support cylinder frame; 45-Adjusting electric cylinder; 46-Orientation motor; 47-Orientation shaft; 48-Mounting plate; 49-Welding arm; 50-Transfer frame; 51-Clamping plate; 52-Clamping electric cylinder; 53-Connecting bracket; 54-Positioning part. Detailed Implementation

[0026] Example: Figures 1 to 12As shown, an automatic welding device for eyeglass accessories includes a base 1, on which two frame mounting mechanisms are mounted. Each frame mounting mechanism includes a rotatable mounting positioning seat 6 with evenly distributed mounting grooves. A fitting mold seat 26 is fitted into each mounting groove, and an eyeglass frame 29 is fitted onto the upper surface of the fitting mold seat 26. An inspection mechanism is provided between the two frame mounting mechanisms to inspect the bending shape of the eyeglass frame 29. A transfer mechanism is provided on the base 1, including a fitting fixing mold 38. The lower end face of the fitting fixing mold 38 fits against the upper surface of the fitting mold seat 26, and the eyeglass frame 29 is fitted onto the mold seat 26. 9. Limiting is performed; a fixing part 28 is provided on the inner side of the bonding mold base 26, and a positioning hole is provided on the fixing part 28; a fixing cylinder 40 is provided on the inner side of the bonding fixing mold 38, and an electromagnetic fixing shaft 41 is provided on the fixing cylinder 40. The fixing cylinder 40 cooperates with the fixing part 28, and the electromagnetic fixing shaft 41 cooperates with the positioning hole to fix the bonding mold base 26 and the bonding fixing mold 38; a bracket mounting mechanism is provided on one side of the base 1 for positioning and mounting the connecting bracket 53; a transfer mechanism 2 is provided on the base 1 for transferring the connecting bracket 53. The two ends of the connecting bracket 53 are respectively connected to the two mirror frames 29 for welding.

[0027] The frame mounting mechanism includes a mounting shaft 2 fixedly mounted on a base 1, a mounting positioning seat 6 rotatably mounted on the mounting shaft 2, a mounting plate 3 connected to the top of the mounting shaft 2, an inspection mechanism mounted on the mounting plate 3, and a transfer mechanism also mounted on the mounting plate 3. A gear ring 7 is provided at the bottom of the mounting positioning seat 6, a control motor 10 is provided on the base 1, a belt structure is provided on the output shaft of the control motor 10, a rotating shaft 9 is rotatably mounted on the base 1, and gears 8 are fixedly mounted at both ends of the rotating shaft 9. The gears 8 mesh with the gear ring 7, and the rotating shaft 9 is driven by the belt structure on the output shaft of the control motor 10.

[0028] Limiting rods 24 are evenly arranged on the mounting and positioning seat 6 to limit the mirror frame 29. The limiting rods 24 are located outside the mounting groove. A mating groove 25 is provided on the mounting groove. A mating seat 27 is provided at the bottom of the fitting mold seat 26. The mating seat 27 mates with the mating groove 25.

[0029] The inspection mechanism includes a motor 4 and a lead screw 5 mounted on a mounting plate 3. Motor 4 drives lead screw 5. A slide block 12 is slidably mounted on the mounting plate 3, forming a helical pair with lead screw 5. A motor 13 and a lead screw 14 are mounted on slide block 12, driving lead screw 14. A slide block 15 is slidably mounted on slide block 12, forming a helical pair with lead screw 14. A motor 16 and a lead screw 17 are mounted on slide block 15, driving lead screw 17. A slide block 18 is slidably mounted on slide block 15. The slide block 18 and the lead screw 17 form a helical pair. A control electric cylinder 19 is provided on the slide block 18. A connecting plate 20 is provided on the telescopic rod of the control electric cylinder 19. A contact rod 22 is telescopically provided on the connecting plate 20. A spring 23 for providing elastic force is connected between the contact rod 22 and the connecting plate 20. A displacement sensor 21 is provided between the end of the contact rod 22 and the connecting plate 20. The displacement sensor 21 is used to output a feedback displacement signal of the contact rod 22. The contact rod 22 moves and contacts the surface of the frame 29. It telescopically changes according to the bending shape of the frame 29 to check the bending shape of the frame 29.

[0030] The transfer mechanism includes a second motor 11, a second guide rod 30, and a second lead screw 31 mounted on the mounting plate 3. The second motor 11 drives the second lead screw 31. A second slide block 32 is movably mounted on the second guide rod 30 and the second lead screw 31. The second slide block 32 and the second lead screw 31 form a helical pair. A position electric cylinder 33 is mounted on the second slide block 32. A position frame 34 is mounted on the telescopic rod of the position electric cylinder 33. A fifth motor 35 and a fifth lead screw 36 are mounted on the position frame 34. Two docking frames 37 are slidably mounted on the position frame 34. The docking frames 37 and the fifth lead screw 36 form a helical pair. One end of the docking frame 37 is fixedly connected to the bonding and fixing mold 38. A fixing electric cylinder 39 is mounted on the bonding and fixing mold 38. The telescopic rod of the fixing electric cylinder 39 is fixedly connected to the fixing cylinder 40.

[0031] Adjusting electric cylinders 45 are provided on the base 1 and on both sides of the transfer mechanism 2. A support frame 44 is provided on the telescopic rod of the adjusting electric cylinder 45. A welding arm 49 is provided on the side of the support frame 44 for welding.

[0032] The transfer mechanism 2 includes a motor 42 and a lead screw 43 mounted on the base 1. The motor 42 drives the lead screw 43. A transfer frame 50 is slidably mounted on the base 1. The transfer frame 50 and the lead screw 43 form a helical pair. A clamping electric cylinder 52 is mounted at the top of the transfer frame 50. A clamping plate 51 is mounted on the telescopic rod of the clamping electric cylinder 52. The clamping plate 51 is used to clamp the connecting bracket 53.

[0033] The bracket mounting mechanism includes an azimuth motor 46 fixedly mounted on the base 1 and an azimuth shaft 47 rotatably mounted on the base 1. The azimuth shaft 47 is driven by the azimuth motor 46. A mounting plate 48 is provided at the top of the azimuth shaft 47. Positioning parts 54 are evenly arranged on the mounting plate 48. The positioning parts 54 are used to position and install the connecting bracket 53.

[0034] Eyeglasses components come in a wide variety, such as frames, lenses, and nose pads. Frames are made of different materials, such as metal, plastic, and titanium alloy. In current eyeglass manufacturing, frames are connected to the central support structure by welding. However, eyeglass frames are curved structures, making positioning and alignment difficult during welding, and they are prone to deformation. Existing welding equipment cannot effectively solve this technical problem. Therefore, this invention proposes a welding device that can weld eyeglass frames, achieving accurate positioning and preventing deformation during welding, thereby improving work efficiency and ensuring production quality.

[0035] Operating principle: Mounting slots are evenly arranged on the mounting positioning seat 6, and the fitting mold seat 26 is installed in the mounting slots. The mirror frame 29 is placed on the fitting mold seat 26 and limited by the limiting rod 24. The upper surface of the fitting mold seat 26 is in contact with the mirror frame 29. That is, the operator can perform mold processing on the fitting mold seat 26 according to the structural design of the mirror frame, so that the mirror frame 29 can fit with the upper surface of the fitting mold seat 26 to prevent the mirror frame 29 from deforming under force. By controlling the motor 10 to work, the rotating shaft 9 rotates, which can make the gear ring 7 and the mounting positioning seat 6 rotate to change the position of each mirror frame 29.

[0036] Between welding operations, each lens frame 29 can be inspected. This is achieved by activating motor 4, rotating lead screw 5, and moving slide 12 to change its position; activating motor 3 13, rotating lead screw 3 14 to move slide 3 15; and activating motor 4 16, rotating lead screw 4 17 to move slide 4 18 to adjust the position of contact rod 22. Contact rod 22 moves according to the outer frame structure of lens frame 29, and control cylinder 19 controls the movement of connecting plate 20. The bottom end of contact rod 22 contacts lens frame 29. If lens frame 29 is fitted onto bonding mold base 26... If the displacement of the contact rod 22 does not exceed the preset value, it is determined that the bending shape of the frame 29 meets the standard. If the displacement of the contact rod 22 exceeds the preset value, it is determined that the bending shape of the frame 29 does not meet the standard. For example, if the bending shape of the frame 29 does not meet the design standard, some areas of it will not fit with the upper surface of the bonding mold base 26. When the contact rod 22 moves and contacts the frame 29, the frame 29 will be deformed by force, and the displacement of the contact rod 22 will be abnormal.

[0037] Furthermore, after the inspection is completed, the motor 11 operates, the lead screw 31 rotates, causing the slide 32 to move, and the position cylinder 33 controls the position frame 34 to move. The bonding and fixing mold 38 is located above the frame 29, and the bonding and fixing mold 38 is mated with the bonding mold base 26, that is, the lower end face of the bonding and fixing mold 38 is mated with the upper surface of the bonding mold base 26. The frame 29 is located between the bonding and fixing mold 38 and the bonding mold base 26. The lower end face of the bonding and fixing mold 38 is also molded according to the design structure of the frame 29. After mating and bonding, the fixing cylinder 39 controls the fixing cylinder 40 to move. The fixing cylinder 40 is mated with the fixing part 28, and the electromagnetic fixing shaft 41 moves telescopically and is mated with the positioning hole on the fixing part 28 to achieve the fixing of the bonding and fixing mold 38 and the bonding mold base 26.

[0038] Then, the bonding and fixing mold 38 is moved to disengage the bonding mold base 26 from the mounting groove, so as to transfer the mirror frame 29. It should be noted that when the bonding and fixing mold 38 and the bonding mold base 26 are mated, only a partial area is mated, and part of the mirror frame 29 is exposed to facilitate subsequent welding. However, the partial mating does not affect the positioning effect of the mirror frame 29. The motor 35 operates, the lead screw 36 rotates, and the docking frame 37 moves, which can adjust the distance between the two mirror frames 29. Further, the motor 42 drives the lead screw 43 to rotate, the transfer frame 50 moves, and the clamping plate 51 moves to the installation area of ​​the connecting bracket 53. The clamping electric cylinder 52 controls the clamping plate 51 to clamp and fix the connecting bracket 53 for transfer. The connecting bracket 53 is positioned and installed on the positioning part 54. The positioning part 54 can also be molded according to the design structure of the connecting bracket 53 to ensure the stable installation of the connecting bracket 53.

[0039] The connecting bracket 53 is moved between the two mirror frames 29, and the mirror frames 29 are aligned with the two ends of the connecting bracket 53. Then, the support cylinder 44 is moved by adjusting the electric cylinder 45. The welding arm 49 is located on the support cylinder 44 and has multiple degrees of freedom of movement. It can move freely in the docking area between the mirror frame 29 and the connecting bracket 53. Laser welding is performed at the docking point to complete the welding operation.

[0040] Subsequently, when removing the welded frame, the position of the support cylinder 44 is adjusted by adjusting the electric cylinder 45 so that the support cylinder 44 is located below the bonding mold base 26. The bonding mold base 26 is then installed on the support cylinder 44, that is, the mating seat 27 mates with the top of the support cylinder 44. Then, the bonding fixing mold 38 is controlled to disengage from the bonding mold base 26, and the frame can be removed. Then, the bonding fixing mold 38 is re-connected and fixed to the bonding mold base 26. The bonding mold base 26 is then transferred to the mounting positioning seat 6 for subsequent welding operations.

Claims

1. An automatic welding device for eyeglass accessories, comprising a base (1), characterized in that: Two frame mounting mechanisms are provided on the base (1). Each frame mounting mechanism includes a rotating mounting positioning seat (6). Mounting slots are evenly arranged on the mounting positioning seat (6), and a fitting mold seat (26) is fitted in the mounting slot. A frame (29) is fitted onto the upper surface of the fitting mold seat (26). An inspection mechanism is provided between the two frame mounting mechanisms to check the bending shape of the frame (29). A transfer mechanism is provided on the base (1). The transfer mechanism includes a fitting fixing mold (38). The lower end face of the fitting fixing mold (38) is fitted onto the upper surface of the fitting mold seat (26) and limits the position of the frame (29). The inner side of the fitting mold seat (26) A fixing part (28) is provided, and a positioning hole is provided on the fixing part (28). A fixing cylinder (40) is provided on the inner side of the fitting fixing mold (38). An electromagnetic fixing shaft (41) is provided on the fixing cylinder (40). The fixing cylinder (40) cooperates with the fixing part (28), and the electromagnetic fixing shaft (41) cooperates with the positioning hole to realize the fixing of the fitting mold base (26) and the fitting fixing mold (38). A bracket installation mechanism is provided on one side of the base (1) for positioning and installing the connecting bracket (53). A transfer mechanism II is provided on the base (1) for transferring the connecting bracket (53). The two ends of the connecting bracket (53) are respectively connected to the two mirror frames (29) for welding.

2. The automatic welding device for eyeglass accessories according to claim 1, characterized in that: The frame mounting mechanism includes a mounting shaft (2) fixedly mounted on a base (1), a mounting positioning seat (6) rotatably mounted on the mounting shaft (2), a mounting plate (3) connected to the top of the mounting shaft (2), an inspection mechanism mounted on the mounting plate (3), and a transfer mechanism also mounted on the mounting plate (3); a gear ring (7) is provided at the bottom of the mounting positioning seat (6), a control motor (10) is provided on the base (1), a belt structure is provided on the output shaft of the control motor (10), a rotating shaft (9) is rotatably mounted on the base (1), gears (8) are fixedly provided at both ends of the rotating shaft (9), the gears (8) mesh with the gear ring (7), and the rotating shaft (9) is driven by the belt structure on the output shaft of the control motor (10).

3. The automatic welding device for eyeglass accessories according to claim 2, characterized in that: The mounting positioning seat (6) is evenly arranged with limiting rods (24) for limiting the mirror frame (29). The limiting rods (24) are located outside the mounting groove. A mating groove (25) is provided on the mounting groove. A mating seat (27) is provided at the bottom of the fitting mold seat (26). The mating seat (27) mates with the mating groove (25).

4. The automatic welding device for eyeglass accessories according to claim 2, characterized in that: The inspection mechanism includes a motor (4) and a lead screw (5) mounted on a mounting plate (3). The motor (4) drives the lead screw (5). A slide block (12) is slidably mounted on the mounting plate (3). The slide block (12) and the lead screw (5) form a helical pair. A motor (13) and a lead screw (14) are mounted on the slide block (12). The motor (13) drives the lead screw (14). A slide block (15) is slidably mounted on the slide block (12). The slide block (15) and the lead screw (14) form a helical pair. A motor (16) and a lead screw (17) are mounted on the slide block (15). The motor (16) drives the lead screw (17). A slide block (4) is slidably mounted on the slide block (15). (18) The slide block (18) and the lead screw (17) form a screw pair. The slide block (18) is equipped with a control electric cylinder (19). The telescopic rod of the control electric cylinder (19) is equipped with a connecting plate (20). The connecting plate (20) is equipped with a contact rod (22). A spring (23) for providing elastic force is connected between the contact rod (22) and the connecting plate (20). A displacement sensor (21) is provided between the end of the contact rod (22) and the connecting plate (20). The displacement sensor (21) is used to output the displacement signal of the contact rod (22). The contact rod (22) moves and contacts the surface of the frame (29). It stretches and extends according to the bending shape of the frame (29) to check the bending shape of the frame (29).

5. The automatic welding device for eyeglass accessories according to claim 2, characterized in that: The transfer mechanism includes a motor (11), a guide rod (30), and a lead screw (31) mounted on a mounting plate (3). The motor (11) drives the lead screw (31). A slide block (32) is movably mounted on the guide rod (30) and the lead screw (31). The slide block (32) and the lead screw (31) form a helical pair. A position electric cylinder (33) is mounted on the slide block (32). A position frame (34) is mounted on the telescopic rod of the position electric cylinder (33). A motor (35) and a lead screw (36) are mounted on the position frame (34). Two docking frames (37) are slidably mounted on the position frame (34). The docking frames (37) and the lead screw (36) form a helical pair. One end of the docking frame (37) is fixedly connected to the bonding and fixing mold (38). A fixing electric cylinder (39) is mounted on the bonding and fixing mold (38). The telescopic rod of the fixing electric cylinder (39) is fixedly connected to the fixing cylinder (40).

6. The automatic welding device for eyeglass accessories according to claim 1, characterized in that: Adjustable electric cylinders (45) are provided on the base (1) and on both sides of the transfer mechanism 2. A support frame (44) is provided on the telescopic rod of the adjustable electric cylinder (45). A welding arm (49) is provided on the side of the support frame (44) for welding.

7. The automatic welding device for eyeglass accessories according to claim 1, characterized in that: The second transfer mechanism includes a motor six (42) and a lead screw six (43) mounted on the base (1). The motor six (42) is used to drive the lead screw six (43). A transfer frame (50) is slidably mounted on the base (1). The transfer frame (50) and the lead screw six (43) form a helical pair. A clamping electric cylinder (52) is provided at the top of the transfer frame (50). A clamping plate (51) is provided on the telescopic rod of the clamping electric cylinder (52). The clamping plate (51) is used to clamp the connecting bracket (53).

8. The automatic welding device for eyeglass accessories according to claim 1, characterized in that: The bracket installation mechanism includes an azimuth motor (46) fixedly mounted on the base (1) and an azimuth shaft (47) rotatably mounted on the base (1). The azimuth shaft (47) is driven by the azimuth motor (46). An installation plate (48) is provided at the top of the azimuth shaft (47). Positioning parts (54) are evenly arranged on the installation plate (48). The positioning parts (54) are used to position the mounting bracket (53).

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