Baking mold laser welding production line

Abstract

The utility model belongs to the technical field of baking mold manufacturing, and particularly relates to a baking mold laser welding production line, including a single-connected sub-mold laser welding station, a multi-connected sub-mold laser welding station, and a multi-connected sub-mold and frame laser welding station, wherein the single-connected sub-mold laser welding station and the multi-connected sub-mold laser welding station are both provided with a placement table and a laser welding device located above the placement table, and a limit plate and a first pushing mechanism are respectively provided at both ends of the placement table, and a positioning plate is provided between the limit plate and the first pushing mechanism, and the positioning plate is used to contact with the flange of a single sub-mold or a single single-connected sub-mold; the limit plate can move close to or away from the first pushing mechanism, and the first pushing mechanism is used to push the sub-mold or the single-connected sub-mold toward the limit plate. The utility model has the advantage of being applicable to the welding of different numbers of baking molds.

Description

Technical Field

[0001] The utility model belongs to the technical field of baking mold manufacturing, in particular to a baking mold laser welding production line. Background Art

[0002] The baking mold is used for making cakes. The Chinese patent application number 202020531384.0 discloses a baking box and a forming device thereof. The scheme arranges several sub-molds of the baking mold in a rectangular shape and places them on a first mounting seat. The flanges of the baking mold are pressed by a first extrusion mechanism and then welded by a laser welding device; after the welding is completed, the rectangular multi-connected sub-molds (mother molds) are welded to the frame.

[0003] The above solution is to weld the baking mold as a whole, but in actual production, the number of baking molds required will change. When the number of baking molds increases or decreases, the first mounting seat of the above solution can no longer be used. At this time, it is necessary to replace the first mounting seat with a suitable size, which increases production costs. Utility Model Content

[0004] The utility model aims to provide a baking mold laser welding production line which can be applicable to the welding of baking molds of different numbers, thereby reducing the production cost.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a baking mold laser welding production line, including a single-connected sub-mold laser welding station, a multi-connected sub-mold laser welding station, and a multi-connected sub-mold and frame laser welding station, the single-connected sub-mold laser welding station is used to weld a number of single sub-molds into a single-connected sub-mold arranged in a column shape, and the multi-connected sub-mold laser welding station is used to weld a number of single single-connected sub-molds into a multi-connected sub-mold arranged in a rectangular shape; the single-connected sub-mold laser welding station and the multi-connected sub-mold laser welding station are both provided with a placement table and a laser welding station located above the placement table The laser welding device comprises a laser welding device, wherein a limit plate and a first pushing mechanism are respectively provided at both ends of the placing table, a positioning plate extending along the pushing direction of the first pushing mechanism is provided between the limit plate and the first pushing mechanism, and the positioning plate is used to contact with the flange of a single sub-mold or a single single-connected sub-mold; the limit plate can move towards or away from the first pushing mechanism, and the first pushing mechanism is used to push the sub-mold or the single-connected sub-mold toward the limit plate; when the flange on one side of the sub-mold or the single-connected sub-mold contacts the limit plate, the flange on the other side of the sub-mold or the single-connected sub-mold is located on the welding path of the laser welding device.

[0006] In actual operation, the stamped sub-mold will be placed on the placement table and one side of the flange will contact the positioning plate. The limiting plate moves the position of one sub-mold, and the first pushing mechanism pushes the sub-mold and contacts the limiting plate. At this time, one side of the flange of the sub-mold is located on the welding path of the laser welding device. Then the second sub-mold is placed on the placement table and one side of the flange of the second sub-mold is located on the welding path of the laser welding device. Then the laser welding device starts to move and welds the two sub-molds. After completing the welding of the two sub-molds, the limiting plate continues to move the position of one sub-mold, and the first pushing mechanism pushes the two welded sub-molds so that the flange of the first sub-mold contacts the limiting plate again. At this time, the other side of the flange of the second sub-mold is located on the welding path of the laser welding device. The operator places the third sub-mold on the placement table, and one side of the flange contacts the positioning plate, and one side of the flange of the third sub-mold is located on the welding path of the laser welding device. Then the laser welding device moves to weld the third sub-mold with the second sub-mold, and repeats the above operations to complete the welding of the single-connected sub-mold. After completing the welding of the single-connected sub-mold, the single-connected sub-mold is transferred to the multi-connected sub-mold laser welding station. The welding method of the multi-connected sub-mold laser welding station is the same as that of the single-connected sub-mold laser welding station, and will not be repeated here. After completing the welding of the multi-connected sub-mold, the multi-connected sub-mold is transferred to the multi-connected sub-mold and frame laser welding station and welded to the frame to complete the processing of the entire baking mold.

[0007] The sub-mold is punched out by a punching machine, and a convex shape of the cake to be produced is punched out from the center of a piece of iron sheet; then the flanges of the sub-mold (iron sheet) are laser welded to each other. A multi-jointed sub-mold refers to a rectangular multi-jointed sub-mold formed by welding multiple columns of single-jointed sub-molds together. Since the side of the multi-jointed sub-mold is thinner, welding the multi-jointed sub-mold to the frame can increase the strength.

[0008] The laser welding station for the multi-connected sub-molds and the frame can be any existing station that can realize laser welding of the multi-connected sub-molds and the frame.

[0009] The contact between one side flange of the single-connected sub-mold and the positioning plate refers to the contact between one side flange of one sub-mold in the single-connected sub-mold and the positioning plate.

[0010] The movement of the limit plate can be controlled by a servo system to ensure that one side flange of the sub-mold is located on the laser welding line. The positioning plate can contact one side flange of the sub-mold or the single-connected sub-mold to ensure the flush setting between the sub-molds and the single-connected sub-molds.

[0011] This solution divides the overall welding into two welding processes, controls the number of sub-molds in a single-connected sub-mold through a limit plate, and controls the number of single-connected sub-molds in a multi-connected sub-mold, so as to meet the requirements of different numbers of baking molds. Compared with the comparative document, there is no need to customize a first mounting seat of a special shape, thereby reducing production costs.

[0012] Preferably, a second pushing mechanism is provided on the placement table, and the second pushing mechanism is used to push two sub-molds or a single-connected sub-mold to be welded toward the positioning plate, and the pushing direction of the second pushing mechanism is perpendicular to the pushing direction of the first pushing mechanism.

[0013] The pushing of the second pushing mechanism can make one side flange of the sub-mold or the single-connected sub-mold closely contact with the positioning plate, thereby ensuring that the two sub-molds will not deviate during welding and further ensuring the welding accuracy.

[0014] Preferably, slides are provided on opposite sides of the placement table, and both ends of the limit plate are respectively fixed to the slides, and the limit plate moves precisely under the action of the slides.

[0015] The limit plate is precisely moved by the slide, so that the position of the limit plate can be controlled. The slide can be any existing high-precision servo slide, ball screw slide, etc.

[0016] Preferably, the placement table is provided with an upwardly open laser welding groove, and the laser welding groove is located on the welding path of the laser welding device.

[0017] After the laser welding groove is set, the laser beam can completely weld through the flange, making the flange welding stronger. Compared with the reference document, the reference document does not have a laser welding groove, so the intensity of the laser needs to be controlled to avoid damage to the first mounting seat (placement table) after being irradiated by the laser. Therefore, the laser intensity of the reference document is difficult to completely weld through the flange, resulting in a lower welding strength of the flange than this solution.

[0018] Preferably, the laser welding device is equipped with at least one clamping device, which is located on the side of the laser beam, moves synchronously with the laser welding device and is used to clamp the welding seam of two sub-molds or a single-connected sub-mold that needs to be welded.

[0019] The clamping device can further clamp the weld seam (side edge) of two sub-molds or a single-connected sub-mold when welding is required, so as to prevent the side of the sub-mold from warping and ensure the welding accuracy. The clamping mechanism can be any existing device that can clamp the sub-mold, such as screw rod pressing or cylinder pressing, etc.

[0020] Preferably, the number of the clamping devices is two and they are respectively located on both sides of the laser beam, the clamping device comprises a lifting mechanism and a roller, the lifting mechanism moves synchronously with the laser welding device, and the roller is fixed at the output end of the lifting mechanism; during laser welding, the roller rolls on the sub-mold and presses the welding seam of two sub-molds or a single-connected sub-mold that needs to be welded.

[0021] The lifting mechanism controls the lifting and lowering of the roller, thereby controlling the pressing force, and the roller presses the sub-mold in a rolling manner to reduce friction.

[0022] Preferably, an electromagnetic chuck is provided on the placement table, and the sub-mold or the single-connected sub-mold is placed on the electromagnetic chuck.

[0023] The electromagnetic chuck can adsorb the sub-mold or single-connected sub-mold on the placement table during laser welding to ensure welding accuracy.

[0024] Preferably, a sub-mold loading belt is provided on one side of the single-connected sub-mold laser welding station, and a first manipulator with a visual recognition function is provided between the sub-mold loading belt and the single-connected sub-mold laser welding station, and the first manipulator can clamp the sub-mold and place the sub-mold on the placing table so that one side of the flange of the sub-mold is located on the laser welding path.

[0025] The automatic clamping of the first manipulator with visual recognition function reduces the labor intensity of the operator. The first manipulator can be a spider manipulator, which can clamp the sub-mold by negative pressure suction or magnetic suction.

[0026] Preferably, a second manipulator is provided between the single-connected sub-mold laser welding station and the multi-connected sub-mold laser welding station, and the second manipulator is used to grab the single-connected sub-mold on the single-connected sub-mold laser welding station and place the single-connected sub-mold on the placing table of the multi-connected sub-mold laser welding station. When the single-connected sub-mold is placed on the placing table of the multi-connected sub-mold laser welding station, the single-connected sub-mold is located on the laser welding path.

[0027] The design of the second manipulator can reduce the labor intensity of the operator, and can accurately clamp and place the single-connected sub-mold, and can clamp the sub-mold by negative pressure suction or magnetic suction.

[0028] Preferably, a third manipulator is provided between the multi-connected sub-mold laser welding station and the multi-connected sub-mold and frame laser welding station, and the third manipulator is used to place the multi-connected sub-mold on the multi-connected sub-mold and frame laser welding station; the multi-connected sub-mold and frame laser welding station is provided with a fourth manipulator, and the fourth manipulator is used to reach into the frame and absorb the frame to place the frame on the multi-connected sub-mold and frame laser welding station.

[0029] The third manipulator and the fourth manipulator can reduce the labor intensity of operators, wherein the third manipulator can be any existing manipulator that can absorb and transfer multiple sub-moulds; the fourth manipulator can be any existing manipulator that can absorb the frame.

[0030] The utility model has the advantage of being applicable to the welding of baking moulds of different numbers, thereby reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the utility model.

[0032] Figure 2 It is a structural schematic diagram of a single-linked sub-mold laser welding station.

[0033] Figure 3 This is a schematic diagram of the structure of a single-linked sub-mold laser welding station.

[0034] Figure 4 This is a schematic diagram of the structure of a single-linked sub-mold laser welding station.

[0035] Figure 5 for Figure 4 Enlarged view of point A.

[0036] Figure 6 It is a schematic diagram of the structure of a single-connected sub-mold laser welding station and a multi-connected sub-mold laser welding station.

[0037] Figure 7 for Figure 6 Enlarged view of point B.

[0038] Figure 8 It is a schematic diagram of the structure of a multi-connected sub-mold laser welding station.

[0039] Fig. 9 It is a schematic diagram of the structure of a multi-connected sub-mold laser welding station.

[0040] Fig.10 It is a structural schematic diagram of the multi-connected sub-mold laser welding station and the connection between the multi-connected sub-mold and the frame laser welding station.

[0041] Fig.11 It is a schematic diagram of the structure of the laser welding station for multiple connected sub-molds and frames.

[0042] Fig.12 This is a schematic diagram of the structure of the fourth robot.

[0043] Fig.13 It is a structural schematic diagram of the multi-connected sub-mold and frame laser welding station when working.

[0044] Figure numbers: 1. Punch; 11. Sub-mold feeding belt; 12. First manipulator; 2. Single-connected sub-mold laser welding station; 21. First pushing mechanism; 22. Second pushing mechanism; 23. Laser welding device; 24. Placement table; 241. Laser welding groove; 25. Limiting plate; 26. Slide; 27. Pressing device; 271. Lifting mechanism; 272. Roller; 273. Slide rail; 28. Screw rod; 29. ​​Positioning plate; 3. Multi-connected sub-mold laser welding station; 4. Multi-connected sub-mold and Frame laser welding station; 41. Clamping mechanism; 42. Positioning strip; 43. Support table; 44. First clamping block; 45. Second clamping block; 5. Second manipulator; 51. First guide rail; 52. Second guide rail; 53. Lifting guide rail; 54. Positioning fixture; 6. Flipping mechanism; 61. Adsorption rack; 7. Third manipulator; 8. Fourth manipulator; 81. Suction cup; 100. Sub-mold; 200. Single-connected sub-mold; 300. Multi-connected sub-mold; 400. Frame; 500. Baking mold. DETAILED DESCRIPTION

[0045] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0046] The sub-molds 100 of the baking mold 500 are punched out one by one by a punch press 1. The protruding portion of the sub-mold 100 in this embodiment is cylindrical. The shape of the existing sub-mold 100 can be processed into different protruding shapes according to the shape of the cake.

[0047] like Figure 1 As shown, this embodiment discloses a baking mold laser welding production line which includes a punching machine 1, a single-connected sub-mold laser welding station 2, a multi-connected sub-mold laser welding station 3, and a multi-connected sub-mold and frame laser welding station 4 in sequence.

[0048] like Figures 2 to 5As shown, there are two single-connected sub-mold laser welding stations 2, and a sub-mold feeding belt 11 is provided between the two single-connected sub-mold laser welding stations 2. The sub-mold feeding belt 11 receives the sub-mold 100 punched out by the punch press 1. A first manipulator 12 is provided above the sub-mold feeding belt 11. The first manipulator 12 has a visual recognition function and can clamp the sub-mold 100 on the sub-mold feeding belt 11 and place it on the placement table 24 of the single-connected sub-mold laser welding station 2. Among them, the placement table 24 is an electromagnetic suction cup that can absorb the sub-mold 100. A laser welding device 23 is provided above the placement table 24, and the laser welding device 23 can move in the left and right directions. A laser welding groove 241 is provided on the placement table 24, and the laser welding groove 241 is located on the welding path of the laser welding device 23. The front and rear ends of the placement table 24 are respectively provided with a first pushing mechanism 21 and a limiting plate 25. The first pushing mechanism 21 is used to push the sub-mold 100 to the limiting plate 25. The two ends of the limiting plate 25 are fixed on a slide 26. The slide 26 can move the limiting plate 25 in the front-to-back direction. The slide 26 is a servo slide. A positioning plate 29 extending in the front-to-back direction is provided between the first pushing mechanism 21 and the limiting plate 25. A second pushing mechanism 22 is also provided on the placement table 24. The pushing direction of the second pushing mechanism 22 is perpendicular to the pushing direction of the first pushing mechanism 21. The second pushing mechanism 22 is used to push the sub-mold 100 to the positioning plate 29 so that one side of the sub-mold 100 is in contact with the positioning plate 29. The laser welding device 23 is equipped with a clamping device 27. The number of the clamping devices 27 is two and they are respectively located on the left and right sides of the laser beam. The clamping device 27 includes a lifting mechanism 271 and a roller 272. The roller 272 is fixed to the output end of the lifting mechanism 271. During laser welding, the roller 272 rolls on the sub-mold 100 and presses the welding seams of the two sub-molds 100. The lifting mechanism 271 is a cylinder. The lifting mechanism 271 is slidably mounted on a slide rail 273 extending in the left and right directions. The lifting mechanism 271 is threadedly matched with a screw rod 28 extending in the left and right directions (not shown in the figure). The rotation of the screw rod 28 is synchronized with the movement of the laser welding device 23, thereby ensuring that the clamping device 27 and the laser welding device 23 move synchronously.

[0049] like Figure 6 and Figure 7As shown, a second manipulator 5 is provided between the single-connected sub-mold laser welding station 2 and the multi-connected sub-mold laser welding station 3. The second manipulator 5 includes a first guide rail 51 extending in the left-right direction and two second guide rails 52 extending in the front-back direction. The second guide rail 52 extends to the top of the multi-connected sub-mold laser welding station 3, and the first guide rail 51 is slidably fitted on the second guide rail 52. A lifting guide rail 53 is provided on the first guide rail 51, and a frame is provided at the lower end of the lifting guide rail 53. Three positioning fixtures 54 are fixed on the frame. The three positioning fixtures 54 are fixed on a frame extending in the front-back direction. The positions of the three positioning fixtures 54 on the frame are adjustable. The three positioning fixtures 54 can be magnetic adsorption fixtures or suction cups, which are specifically determined by the shape of the sub-mold 100. When the shape of the sub-mold 100 is cylindrical, its protruding top surface is a plane, and the positioning fixture 54 can be a suction cup. When the protruding top surface of the sub-mold 100 is non-planar, a magnetic adsorption fixture is used.

[0050] like Figure 8 and Fig. 9 As shown, the components of the multi-connected sub-mold laser welding station 3 and the single-connected sub-mold laser welding station 2 are roughly the same. The multi-connected sub-mold laser welding station 3 is also provided with a placement table 24, and the placement table of the multi-connected sub-mold laser welding station 3 is used to place the single-connected sub-mold 200. The placement table 24 is provided with a plurality of first pushing mechanisms 21 and two second pushing mechanisms 22. The placement table 24 is also provided with a limit plate 25 on the other side of the first pushing mechanism 21, and the limit plate 25 is also moved by the slide 26. A laser welding device 23 is provided above the placement table 24, and a laser welding groove 241 is provided on the placement table 24.

[0051] like Fig.10 As shown, a flip mechanism 6 and a third manipulator 7 are provided between the multi-joint sub-mold laser welding station 3 and the multi-joint sub-mold and frame laser welding station 4. The third manipulator 7 and the flip mechanism 6 are both provided with adsorption racks 61 arranged in a cross shape. The adsorption racks 61 can be suction cups or magnetic suction. The flip mechanism 6 is slidably mounted on a track (not shown in the figure), and the track extends from the multi-joint sub-mold laser welding station 3 to the multi-joint sub-mold and frame laser welding station 4. The adsorption rack 61 can adsorb the multi-joint sub-mold 300 on the multi-joint sub-mold laser welding station 3 and flip the multi-joint sub-mold 300 by 180° and be located on the side of the third manipulator 7. The third manipulator 7 adsorbs the multi-joint sub-mold 300 and places it on the multi-joint sub-mold and frame laser welding station 4.

[0052] like Figures 11 to 13As shown, the multi-connected sub-mold and frame laser welding station 4 includes a support platform 43, and a laser welding device 23 that can move horizontally and vertically is provided above the support platform 43. A fourth manipulator 8 is provided on one side of the support platform 23, and the fourth manipulator 8 is used to clamp the frame 400 and place it on the support platform 43. The fourth manipulator 8 is provided with a suction cup 81 that extends into the frame 400, and the suction cup 81 can adsorb the inner wall of the frame 400. The support platform 43 is rectangular, and positioning strips 42 are provided on the two right-angled sides of the support platform 43. The positioning strips 42 are used to contact the two right-angled sides of the frame 400. A plurality of first pressing blocks 44 and second pressing blocks 45 are provided on the support platform 43, and the moving directions of the first pressing blocks 44 and the second pressing blocks 45 are perpendicular to each other. The first pressing blocks 44 and the second pressing blocks 45 can move and press the other two right-angled sides of the frame 400. A movable pressing mechanism 41 is provided above the support platform 43 . The pressing mechanism 41 is pressed downward by a cylinder and is used to press the side edges of the multi-connected sub-mold 300 and the frame 400 .

[0053] This pipeline includes the following steps:

[0054] S1: The punching machine 1 punches out a sub-mold 100 with a flange, and the sub-mold 100 moves on the sub-mold feeding belt 11.

[0055] S2: The first manipulator 12 grabs the sub-molds 100 one by one and places them on the placement table 24 of the single-connected sub-mold laser welding station 2, so that the front flange of the sub-mold 100 is located on the laser welding groove 241.

[0056] S3: the limiting plate 25 moves the position of one sub-mold 100, and the first pushing mechanism 21 pushes the sub-mold 100 toward the limiting plate 25. When the sub-mold 100 contacts the limiting plate 25, the rear flange of the sub-mold 100 is located on the laser welding groove 241.

[0057] S4: the first robot arm 12 clamps the second sub-mold 100 and places it on the placement table 24 , so that the front flange of the second sub-mold 100 is located on the laser welding groove 241 .

[0058] S5: The second pushing mechanism 22 pushes the two sub-molds 100 so that one side flange of the sub-mold 100 contacts the positioning plate 29 .

[0059] S6: The laser welding mechanism 23 moves the roller to press the welding seams of the two sub-molds 100 , and the laser welding mechanism 23 welds the two sub-molds 100 .

[0060] S7: After the welding of the two sub-molds 100 is completed, the limiting plate moves the position of one sub-mold 100 again, and the operations from S3 to S7 are repeated to complete the welding of the single-connected sub-mold 200.

[0061] S8; the second manipulator places the single-connected sub-mold 200 on the placement table 24 of the multi-connected sub-mold laser welding station 3, so that one side edge of the single-connected sub-mold 200 is located at the laser welding groove 241.

[0062] S9: The welding method of the multi-connected sub-mold laser welding station 3 is the same as that of the single-connected sub-mold laser welding station 2, and will not be further described here.

[0063] S10; after the welding of the multi-connected sub-mold 300 is completed, the flip mechanism 6 clamps the multi-connected sub-mold 300 on the multi-connected sub-mold laser welding station 3 and flips it 180°, and transfers it through the third manipulator 7.

[0064] S11: The fourth manipulator 8 places the frame 400 on the support platform 43 of the multi-connected sub-mold and frame laser welding station 4, the frame 400 contacts the positioning bar 42, and the first pressing block 44 and the second pressing block 45 press the frame 400.

[0065] S12: The third robot 7 places the multi-connected sub-mold 300 on the frame 400, and the clamping mechanism 41 clamps the multi-connected sub-mold 300 and the frame 400. Finally, the laser welding device 23 welds the multi-connected sub-mold 300 and the frame 400 to complete the processing of the baking mold 500.

Claims

1. A baking mold laser welding production line, characterized by: It includes a single-connected sub-mold laser welding station, a multi-connected sub-mold laser welding station, and a multi-connected sub-mold and frame laser welding station. The single-connected sub-mold laser welding station is used to weld several single sub-molds into a single-connected sub-mold arranged in a column shape, and the multi-connected sub-mold laser welding station is used to weld several single single-connected sub-molds into a multi-connected sub-mold arranged in a rectangular shape; the single-connected sub-mold laser welding station and the multi-connected sub-mold laser welding station are both provided with a placement table and a laser welding device located above the placement table, and a limit plate and a first pushing mechanism are respectively provided at both ends of the placement table. A positioning plate extending along the pushing direction of the first pushing mechanism is provided between the limit plate and the first pushing mechanism, and the positioning plate is used to contact with the flange of a single sub-mold or a single single-connected sub-mold; the limit plate can move close to or away from the first pushing mechanism, and the first pushing mechanism is used to push the sub-mold or the single-connected sub-mold toward the limit plate; when the flange on one side of the sub-mold or the single-connected sub-mold contacts the limit plate, the flange on the other side of the sub-mold or the single-connected sub-mold is located on the welding path of the laser welding device.

2. The baking mold laser welding production line according to claim 1, characterized in that: The placement table is provided with a second pushing mechanism, which is used to push two sub-moulds or a single-connected sub-mould to be welded toward the positioning plate, and the pushing direction of the second pushing mechanism is perpendicular to the pushing direction of the first pushing mechanism.

3. The baking mold laser welding production line according to claim 1, characterized in that: Slide tables are arranged on opposite sides of the placing table, and both ends of the limiting plate are respectively fixed to the slide tables, and the limiting plate moves precisely under the action of the slide tables.

4. The baking mold laser welding production line according to claim 1, characterized in that: The placement table is provided with a laser welding groove which is open upwards, and the laser welding groove is located on the welding path of the laser welding device.

5. The baking mold laser welding line according to any one of claims 1 to 4, characterized in that: The laser welding device is equipped with at least one clamping device, which is located on the side of the laser beam. The clamping device moves synchronously with the laser welding device and is used to clamp the welding seams of two sub-moulds or single-connected sub-moulds that need to be welded.

6. The baking mold laser welding line according to claim 5, characterized in that: There are two clamping devices, which are respectively located on both sides of the laser beam. The clamping device includes a lifting mechanism and a roller. The lifting mechanism moves synchronously with the laser welding device, and the roller is fixed at the output end of the lifting mechanism. During laser welding, the roller rolls on the sub-mold and clamps the welding seams of two sub-molds or a single-connected sub-mold that need to be welded.

7. The baking mold laser welding production line according to any one of claims 1 to 4, characterized in that: The placing table is provided with an electromagnetic chuck, and the sub-mold or the single-connected sub-mold is placed on the electromagnetic chuck.

8. The baking mold laser welding production line according to any one of claims 1 to 4, characterized in that: A sub-mold loading belt is provided on one side of the single-connected sub-mold laser welding station, and a first manipulator with a visual recognition function is provided between the sub-mold loading belt and the single-connected sub-mold laser welding station. The first manipulator can clamp the sub-mold and place the sub-mold on the placing table so that one side of the sub-mold is located on the laser welding path.

9. The baking mold laser welding production line according to any one of claims 1 to 4, characterized in that: A second manipulator is provided between the single-connected sub-mold laser welding station and the multi-connected sub-mold laser welding station. The second manipulator is used to grab the single-connected sub-mold on the single-connected sub-mold laser welding station and place the single-connected sub-mold on the placement table of the multi-connected sub-mold laser welding station. When the single-connected sub-mold is placed on the placement table of the multi-connected sub-mold laser welding station, the single-connected sub-mold is located on the laser welding path.

10. The baking mold laser welding production line according to any one of claims 1 to 4, characterized in that: A third manipulator is provided between the multi-connected sub-mold laser welding station and the multi-connected sub-mold and frame laser welding station, and the third manipulator is used to place the multi-connected sub-mold on the multi-connected sub-mold and frame laser welding station; the multi-connected sub-mold and frame laser welding station is provided with a fourth manipulator, and the fourth manipulator is used to extend into the frame and absorb the frame to place the frame on the multi-connected sub-mold and frame laser welding station.

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