Laser welding table for mirror frame assembly

Abstract

The application discloses a laser welding table for mirror frame combined manufacturing and relates to the technical field of mirror frame processing. The laser welding table comprises a base, symmetrical bearing seats arranged on the base, sliding connections between the bearing seats and the base, bearing structures arranged on the bearing seats and used for supporting mirror rings, clamping assemblies used for clamping the mirror rings in cooperation with the bearing seats when welding hinges and bridge pads, hinge fixing assemblies symmetrically arranged about the vertical center surface of the base, bridge pad fixing assemblies arranged on the base and used for pressing the bridge pads and the mirror rings in cooperation with the clamping assemblies during welding. The cooperative arrangement of the bearing seats, the clamping assemblies, the hinge fixing assemblies and the bridge pad fixing assemblies enables the mirror ring to complete multi-position welding operation after one-time clamping, reduces positioning errors caused by repeated clamping, and significantly improves welding efficiency and welding consistency.

Description

Technical Field

[0001] This invention relates to the field of picture frame processing technology, specifically to a laser welding station for picture frame assembly manufacturing. Background Technology

[0002] Eyeglass frames are typically assembled from multiple metal components, including the lens rims, hinges, and bridge. To ensure connection strength and aesthetic quality, laser welding is commonly used in current technology to connect these components. The assembly process usually involves first welding the hinge structure to individual frame pieces, then welding the left and right frames together to form a single frame, and finally welding the bridge to complete the overall assembly. To achieve this welding process, current production lines typically use dedicated welding stations and fixtures to position and hold the frame components, facilitating the laser welding operation. Different welding processes typically require different fixtures or clamping methods. For example, an end clamping structure is used when welding hinges, a frame positioning fixture is used when welding the frame joint, and a middle positioning structure is used when welding the nose bridge. During the welding process, operators need to change fixtures or readjust the frame's mounting posture on the welding table multiple times, depending on the welding area, to ensure the welding position matches the laser welding path. Some welding tables also use additional local supports or temporary limits to assist in welding different parts. While the aforementioned existing technologies can complete the welding and manufacturing of eyeglass frames, they still have significant shortcomings in practical applications. On the one hand, because different welding processes require frequent changes of fixtures or re-clamping of the eyeglass frame, it is easy to cause repeated establishment of the eyeglass frame reference, increasing clamping time and leading to cumulative errors in welding position accuracy, affecting the overall consistency of the eyeglass frame and the yield of finished products. On the other hand, interference can easily occur between the fixture structure and the welding path, often requiring loosening of the clamps or changing the welding angle to meet welding requirements, thereby reducing clamping stability. In addition, existing welding stations cannot sequentially complete the welding of multiple parts such as hinges, eyeglass frame joints, and nose bridges under the same clamping condition, resulting in low production efficiency and insufficient automation and integration, making it difficult to meet the high-efficiency and high-precision welding requirements of eyeglass frame assembly manufacturing.

[0003] To address this, we propose a laser welding station for the assembly and manufacturing of mirror frames. Summary of the Invention

[0004] The purpose of this invention is to provide a laser welding station for manufacturing assembled eyeglass frames, thereby solving the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a laser welding station for manufacturing assembled eyeglass frames, comprising: The base has symmetrically arranged support seats, which are slidably connected to the base. The support seats are provided with a support structure for supporting the lens ring. A clamping assembly for clamping the lens ring in conjunction with a bearing during welding of the hinge and nose bridge; A hinge fixing assembly, wherein the hinge fixing assembly is symmetrically arranged about the vertical center plane of the base; A nose bridge fixing component is disposed on a base and is used to cooperate with a clamping component to press the nose bridge and the lens ring together during welding.

[0005] Preferably, the clamping assembly includes: A slide rail has a slider slidably connected to it. A connecting rod is fixedly connected to the top of the slider, and an abutment plate is fixedly connected to the end of the connecting rod. The surface of the abutment plate is covered with a rubber layer. A driving mechanism is provided at the end of the slide rail away from the slider. The driving mechanism is used to drive the slider to move along the slide rail towards the mirror ring.

[0006] Preferably, the drive mechanism includes: A rotating rod has a circular groove inside, and a spiral spring is installed in the groove. One end of the spiral spring is fixedly connected to the support seat, and the other end is fixedly connected to the inner wall of the rotating rod. A ratchet mechanism is installed on the rotating rod, and an unlocking mechanism is installed at the top of the rotating rod. The bottom end of the rotating rod is connected to the slider by a connecting rope.

[0007] Preferably, the ratchet mechanism includes: The teeth are arranged in a circumferential array around the rotating rod and are fixedly connected to the support. An abutment is slidably connected to the rotating rod and abuts against the teeth. A spring is provided on one side of the abutment. One end of the spring is fixedly connected to the rotating rod and the other end is fixedly connected to the abutment.

[0008] Preferably, the unlocking mechanism includes: The long rod has an inclined surface at its bottom, and the abutting member has an inclined groove. The bottom end of the long rod abuts against the abutting member, and a button is fixedly connected to the top of the long rod. The button extends out of the rotating rod and is slidably connected to the rotating rod.

[0009] Preferably, the hinge fixing assembly includes: An extension block is fixedly connected to the side wall of the base. A clamping block 1 is fixedly connected to the top of the extension block. A clamping block 2 is provided on one side of the clamping block 1. A sliding rod is fixedly connected to one side of the clamping block 2. The sliding rod is slidably connected to the clamping block 1. A pressing plate is fixedly connected to the end of the sliding rod. A spring 2 is provided on one side of the pressing plate. One end of the spring 2 is fixedly connected to the pressing plate, and the other end is fixedly connected to the clamping block 1.

[0010] Preferably, the nasal bridge fixation assembly includes: A first abutment is fixedly connected to a base. A second abutment is provided on one side of the first abutment. A transmission component is provided on the base. The transmission component is used to drive the first abutment to cooperate with the second abutment to clamp the bridge of the nose, and to press the lens ring on the support seat against the bridge of the nose.

[0011] Preferably, the transmission assembly includes: Rack 1, which has two racks, is fixedly connected to the bottom of the support base. A gear meshes between the racks. A servo motor is installed at the bottom of the gear. The end of the output shaft of the servo motor is fixedly connected to the gear. Rack 2 is fixedly connected to the bottom of the abutment frame 2. Rack 2 meshes with the gear and is slidably connected to the base.

[0012] This invention has at least the following beneficial effects: This embodiment, through the coordinated arrangement of the support base, clamping assembly, hinge fixing assembly, and nose bridge fixing assembly, enables the lens ring to complete multiple welding operations in a single clamping. This not only reduces positioning errors caused by repeated clamping but also significantly improves welding efficiency and welding consistency. At the same time, welding is completed in a clamped state, which helps to ensure the stability of the welding process and reduces the probability of welding misalignment and incomplete welding. The surface of the contact plate is covered with a rubber layer, which can buffer and protect the lens ring when clamping it. It can effectively prevent scratches or indentations on the surface of the lens ring during clamping, and also help to improve the contact friction and avoid relative slippage of the lens ring during welding. At the same time, the cooperation structure of the slide rail and the slider enables the clamping assembly to achieve reliable clamping in a small space, and the structure is simple. By fixing the teeth to the bearing seat and making the abutment move synchronously with the rotating rod, the ratchet mechanism can form a stable relative fit relationship in structure, thereby effectively preventing the rotating rod from rotating and loosening due to vibration or external force interference during the clamping process. This ratchet limiting method has a simple structure and high reliability, and can maintain the clamping force without continuously applying driving force. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the clamping assembly structure of the present invention; Figure 3 This is a schematic diagram of the rotating rod structure of the present invention; Figure 4 This is a schematic diagram of the ratchet mechanism structure of the present invention; Figure 5 This is a schematic diagram of the hinge fixing component structure of the present invention; Figure 6 This is a schematic diagram of the transmission component structure of the present invention; Figure 7 This is a schematic diagram of the rack structure of the present invention.

[0014] In the diagram: 10. Base; 11. Bearing seat; 20. Clamping assembly; 21. Slide rail; 22. Slider; 23. Abutment plate; 24. Drive mechanism; 241. Rotating rod; 242. Circular groove; 243. Scroll spring; 25. Ratchet mechanism; 251. Tooth; 252. Abutment piece; 253. Spring one; 26. Unlocking mechanism; 261. Long rod; 263. Button; 30. Hinge fixing assembly; 31. Extension block; 32. Clamping block one; 33. Clamping block two; 34. Sliding rod; 35. Press plate; 36. Spring two; 40. Nose bridge fixing assembly; 41. Abutment frame one; 42. Abutment frame two; 43. Transmission assembly; 431. Rack one; 432. Gear; 433. Servo motor; 434. Rack two. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-7 The present invention provides a technical solution: a laser welding station for manufacturing assembled eyeglass frames, comprising: The base 10 has a symmetrically arranged support seat 11 on it. The support seat 11 is slidably connected to the base 10. The support seat 11 is provided with a support structure for supporting the lens ring. Clamping assembly 20, which is used to clamp the lens ring with the bearing 11 when welding the hinge and nose bridge; The hinge fixing assembly 30 is symmetrically arranged about the vertical center face of the base 10; A nose bridge fixing component 40 is disposed on the base 10. The nose bridge fixing component 40 is used to cooperate with the clamping component 20 to press the nose bridge and the lens ring together during welding. It should be noted that during the welding process of the lens frame, the left and right lens rings are placed on their respective support seats 11, and the support structure on the support seats 11 initially positions the lens rings. Subsequently, the clamping assembly 20 moves towards the lens ring under the driving action, so that the contact part abuts against the outer or inner edge of the lens ring, thereby stably clamping the lens ring onto the support seat 11. When welding the hinge, the hinge fixing assembly 30 limits and clamps the hinge position at the end of the lens ring, so that the hinge maintains a stable relative position with the lens ring during the welding process. After the hinge welding is completed, the nose bridge fixing assembly 40 works in conjunction with the clamping assembly 20 to position the nose bridge and apply a pressing force towards the lens ring, so that the nose bridge and the lens ring are in close contact, thereby completing the welding operation of the nose bridge and the lens ring. In this way, the hinge welding and nose bridge welding can be completed sequentially on the same welding table without changing the fixture or re-establishing the positioning reference. It is worth noting that, through the coordinated arrangement of the bearing seat 11, clamping assembly 20, hinge fixing assembly 30 and nose bridge fixing assembly 40, this embodiment enables the lens ring to complete multiple welding operations after one clamping, which not only reduces the positioning error caused by repeated clamping, but also significantly improves welding efficiency and welding consistency. At the same time, the welding of each welding part is completed in the clamping state, which helps to ensure the stability of the welding process and reduce the probability of welding deviation and incomplete welding.

[0017] Further, as shown in Figure 1, it is worth noting that the clamping assembly 20 includes: A slide rail 21 is provided, on which a slider 22 is slidably connected. The slide rail 21 is fixedly connected to the bottom of the support base 11. A connecting rod is fixedly connected to the top of the slider 22. An abutment plate 23 is fixedly connected to the end of the connecting rod. The surface of the abutment plate 23 is covered with a rubber layer. A driving mechanism 24 is provided at the end of the slide rail 21 away from the slider 22. The driving mechanism 24 is used to drive the slider 22 to move along the slide rail 21 towards the mirror ring. It should be noted that the drive mechanism 24 drives the slider 22 to move along the slide rail 21 towards the lens ring on the support seat 11, thereby causing the abutment plate 23 at the end of the connecting rod to gradually abut against the outer edge of the lens ring. After the abutment plate 23 contacts the lens ring, continuing to apply driving force can stably press the lens ring onto the support structure of the support seat 11, thereby achieving clamping and fixing of the lens ring. The linear movement of the slider 22 along the slide rail 21 makes the direction of the clamping force clear and the movement process smooth, which is conducive to maintaining the stability of the lens ring position during the welding of hinges or nose bridges. It is worth noting that since the surface of the abutment plate 23 is covered with a rubber layer, it can play a buffering and protective role when clamping the lens ring. It can effectively prevent scratches or indentations on the surface of the lens ring during the clamping process, and also help to improve the abutment friction and avoid relative slippage of the lens ring during the welding process. At the same time, through the cooperation structure of the slide rail 21 and the slider 22, the clamping assembly 20 can achieve reliable clamping in a small space, and the structure is simple.

[0018] Further, as shown in Figures 3 and 4, it is worth noting that the drive mechanism 24 includes: A rotating rod 241 has a circular groove 242 inside, and a spiral spring 243 is installed in the circular groove 242. One end of the spiral spring 243 is fixedly connected to the support seat 11, and the other end is fixedly connected to the inner wall of the rotating rod 241. A ratchet mechanism 25 is installed on the rotating rod 241, and an unlocking mechanism 26 is installed at the top of the rotating rod 241. The bottom end of the rotating rod 241 is connected to the slider 22 by a connecting rope. It should be noted that when the rotating rod 241 rotates under the action of external force, the spiral spring 243 in the circular groove 242 undergoes elastic deformation and stores elastic potential energy. Since one end of the spiral spring 243 is fixed to the bearing seat 11 and the other end is fixed to the inner wall of the rotating rod 241, when the external force is released, the spiral spring 243 can drive the rotating rod 241 to rotate. During the rotation of the rotating rod 241, the rotational motion is converted into a traction force on the slider 22 through the connecting rope, thereby driving the slider 22 to move along the slide rail 21 towards the mirror ring, realizing the clamping operation of the clamping assembly 20 on the mirror ring. After clamping is completed, the ratchet mechanism 25 limits the rotating rod 241, keeping the rotating rod 241 in the current rotation position, thereby maintaining the clamping force applied by the slider 22 to the mirror ring. Further, as shown in Figure 4, it is worth noting that the ratchet mechanism 25 includes: Teeth 251 are arranged in a circumferential array around the rotating rod 241 and are fixedly connected to the support seat 11. An abutment 252 is slidably connected to the rotating rod 241. The abutment 252 abuts against the teeth 251. A spring 253 is provided on one side of the abutment 252. One end of the spring 253 is fixedly connected to the rotating rod 241 and the other end is fixedly connected to the abutment 252. It should be noted that the teeth 251 are fixedly mounted on the bearing seat 11 and arranged in an array along the circumferential direction of the rotating rod 241. The abutment 252 always has a tendency to abut towards the teeth 251 under the elastic action of the spring 253. When the rotating rod 241 rotates in the clamping direction, the abutment 252 can slide relative to the teeth 251 under the guidance of the inclined surface of the teeth 251, thereby allowing the rotating rod 241 to continue to rotate. When the rotating rod 241 has a tendency to rotate in the opposite direction, the abutment 252 will be engaged between adjacent teeth 251 under the action of the spring 253, thereby restricting the rotation of the rotating rod 241 in the opposite direction and realizing the one-way limit of the rotating rod 241, so that the clamping assembly 20 maintains a stable clamping state after clamping is completed. It is worth noting that by fixing the teeth 251 on the bearing seat 11 and making the abutment 252 move synchronously with the rotating rod 241, the ratchet mechanism 25 can form a stable relative fit relationship in structure, thereby effectively preventing the rotating rod 241 from rotating and loosening due to vibration or external force interference during the clamping process. This ratchet limiting method has a simple structure and high reliability, and can maintain the clamping force without continuously applying driving force.

[0019] Further, as shown in Figure 4, it is worth noting that the unlocking mechanism 26 includes: The long rod 261 has an inclined surface at its bottom, and the abutting member 252 has an inclined groove. The bottom end of the long rod 261 abuts against the abutting member 252. A button 263 is fixedly connected to the top of the long rod 261. The button 263 extends out of the rotating rod 241 and is slidably connected to the rotating rod 241. It should be noted that when it is necessary to release the clamping state of the clamping assembly 20 on the lens ring, the operator presses the button 263. The button 263 drives the long rod 261 to slide along the axial direction of the rotating rod 241. As the long rod 261 moves downward, the inclined surface at its bottom cooperates with the inclined groove on the abutment 252, so that the abutment 252 is displaced by the elastic force of the spring 253 under the guidance of the inclined surface, thereby disengaging the abutment 252 from the abutment state with the teeth 251 and releasing the ratchet mechanism 25 from limiting the rotating rod 241. Further, as shown in Figure 5, it is worth noting that the hinge fixing assembly 30 includes: An extension block 31 is fixedly connected to the side wall of the base 10. A clamping block 32 is fixedly connected to the top of the extension block 31. A clamping block 33 is provided on one side of the clamping block 32. A sliding rod 34 is fixedly connected to one side of the clamping block 33. The sliding rod 34 is slidably connected to the clamping block 32. A pressing plate 35 is fixedly connected to the end of the sliding rod 34. A spring 36 is provided on one side of the pressing plate 35. One end of the spring 36 is fixedly connected to the pressing plate 35, and the other end is fixedly connected to the clamping block 32. It should be noted that the hinge fixing assembly 30 is fixedly installed on the side wall of the base 10 via the extension block 31, so that the clamping block 32 and the clamping block 33 are located at the corresponding positions of the hinge at the end of the mirror ring. When the hinge is placed, the hinge is placed between the clamping block 32 and the clamping block 33. Under the elastic action of the spring 36, the pressing plate 35 pushes the sliding rod 34 to move along the direction of the clamping block 32, thereby driving the clamping block 33 to move closer to the clamping block 32, so that the hinge is stably clamped between the two clamping blocks. In this way, the hinge can be effectively limited during the welding process to prevent the hinge from shifting or rotating during laser welding. It is worth noting that the chain fixing component 30 adopts an elastic clamping method, which can adaptively compensate for hinges of different sizes or slight positional differences while ensuring the stability of the hinge clamping, thus reducing the clamping difficulty; at the same time, the component is set on the outer side of the end of the mirror ring, without occupying the welding area space.

[0020] Further, as shown in Figures 6 and 7, it is worth noting that the nasal bridge fixing component 40 includes: A first abutment frame 41 is fixedly connected to the base 10. A second abutment frame 42 is provided on one side of the first abutment frame 41. A transmission component 43 is provided on the base 10. The transmission component 43 is used to drive the first abutment frame 41 to cooperate with the second abutment frame 42 to clamp the bridge of the nose, and to press the lens ring on the support seat 11 against the bridge of the nose. It should be noted that the nose bridge fixing component 40 is located in the middle of the base 10, placing it in the nose bridge welding area between the left and right lens rings. Before nose bridge welding, the nose bridge is placed between the first abutment frame 41 and the second abutment frame 42. Then, through the driving action of the transmission component 43, the second abutment frame 42 moves relative to the first abutment frame 41, thereby applying a clamping force to the nose bridge. While the nose bridge is clamped, the transmission component 43, in conjunction with the relative position adjustment of the support seat 11, gradually moves the lens rings on the support seat 11 toward the nose bridge, thereby keeping the nose bridge and lens rings in a pressed and fitted state before welding, so as to meet the positioning and stability requirements when welding the nose bridge and lens rings. Further, as shown in Figure 1, it is worth noting that the transmission assembly 43 includes: Two racks 431 are provided. The racks 431 are fixedly connected to the bottom of the support base 11. A gear 432 meshes between the racks 431. A servo motor 433 is provided at the bottom of the gear 432. The end of the output shaft of the servo motor 433 is fixedly connected to the gear 432. A rack 434 is fixedly connected to the bottom of the abutment frame 42. The rack 434 meshes with the gear 432. The rack 434 is slidably connected to the base 10. It should be noted that after the servo motor 433 starts, it drives the gear 432 to rotate through the output shaft. Since the gear 432 meshes with both racks 431 and 434 at the same time, when the gear 432 rotates, it can drive the rack 431, which is fixedly connected to the support 11, to produce synchronous displacement, thereby adjusting the position of the support 11 relative to the base 10. On the other hand, the rack 434 slides along the base 10 under the drive of the gear 432, thereby driving the abutment frame 42 to move towards the nose bridge. The nose bridge is gradually pressed and fitted with the lens ring on the support 11 under the cooperation of the abutment frame 41 and the abutment frame 42, thus completing the positioning and pressing process before welding the nose bridge and the lens ring. It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present 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 present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A laser welding station for manufacturing assembled eyeglass frames, characterized in that, include: The base (10) has a symmetrically arranged support seat (11) on it. The support seat (11) is slidably connected to the base (10). The support seat (11) is provided with a support structure for supporting the lens ring. Clamping assembly (20) is used to clamp the lens ring with the bearing seat (11) when welding the hinge and nose bridge; A hinge fixing assembly (30) is symmetrically arranged about the vertical center face of the base (10); The nose bridge fixing component (40) is disposed on the base (10) and is used to cooperate with the clamping component (20) to press the nose bridge and the lens ring together during welding.

2. The laser welding station for manufacturing a picture frame assembly according to claim 1, characterized in that: The clamping assembly (20) includes: A slide rail (21) is provided, on which a slider (22) is slidably connected. A connecting rod is fixedly connected to the top of the slider (22), and an abutment plate (23) is fixedly connected to the end of the connecting rod. The surface of the abutment plate (23) is covered with a rubber layer. A driving mechanism (24) is provided at the end of the slide rail (21) away from the slider (22). The driving mechanism (24) is used to drive the slider (22) to move along the slide rail (21) towards the mirror ring.

3. The laser welding station for manufacturing a picture frame assembly according to claim 2, characterized in that: The drive mechanism (24) includes: A rotating rod (241) has a circular groove (242) inside it. A spiral spring (243) is installed in the circular groove (242). One end of the spiral spring (243) is fixedly connected to the bearing seat (11), and the other end is fixedly connected to the inner wall of the rotating rod (241). A ratchet mechanism (25) is installed on the rotating rod (241). An unlocking mechanism (26) is installed at the top of the rotating rod (241). The bottom end of the rotating rod (241) is connected to the slider (22) by a connecting rope.

4. The laser welding station for manufacturing a picture frame assembly according to claim 3, characterized in that: The ratchet mechanism (25) includes: Teeth (251) are arranged in a circumferential array around the rotating rod (241) and fixedly connected to the bearing seat (11). An abutment (252) is slidably connected on the rotating rod (241). The abutment (252) abuts against the teeth (251). A spring (253) is provided on one side of the abutment (252). One end of the spring (253) is fixedly connected to the rotating rod (241), and the other end is fixedly connected to the abutment (252).

5. The laser welding station for manufacturing a picture frame assembly according to claim 4, characterized in that: The unlocking mechanism (26) includes: The long rod (261) has an inclined surface at its bottom and an inclined groove on the abutting member (252). The bottom end of the long rod (261) abuts against the abutting member (252). A button (263) is fixedly connected to the top of the long rod (261). The button (263) extends out of the rotating rod (241) and is slidably connected to the rotating rod (241).

6. The laser welding station for manufacturing a picture frame assembly according to claim 5, characterized in that: The hinge fixing assembly (30) includes: An extension block (31) is fixedly connected to the side wall of the base (10). A clamping block (32) is fixedly connected to the top of the extension block (31). A clamping block (33) is provided on one side of the clamping block (32). A sliding rod (34) is fixedly connected to one side of the clamping block (33). The sliding rod (34) is slidably connected to the clamping block (32). A pressing plate (35) is fixedly connected to the end of the sliding rod (34). A spring (36) is provided on one side of the pressing plate (35). One end of the spring (36) is fixedly connected to the pressing plate (35), and the other end is fixedly connected to the clamping block (32).

7. The laser welding station for manufacturing a picture frame assembly according to claim 6, characterized in that: The nasal bridge fixation component (40) includes: A first abutment (41) is fixedly connected to the base (10). A second abutment (42) is provided on one side of the first abutment (41). A transmission component (43) is provided on the base (10). The transmission component (43) is used to drive the first abutment (41) to cooperate with the second abutment (42) to clamp the bridge of the nose, and to press the lens ring on the support seat (11) against the bridge of the nose.

8. The laser welding station for manufacturing a picture frame assembly according to claim 7, characterized in that: The transmission assembly (43) includes: Two racks are provided in the first rack (431). The first rack (431) is fixedly connected to the bottom of the support base (11). A gear (432) meshes between the first racks (431). A servo motor (433) is provided at the bottom of the gear (432). The end of the output shaft of the servo motor (433) is fixedly connected to the gear (432). The bottom of the second abutment frame (42) is fixedly connected to the second rack (434). The second rack (434) meshes with the gear (432). The second rack (434) is slidably connected to the base (10).

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