Multi-station laser welding device

Abstract

The utility model discloses a multi-station laser welding device, and relates to the technical field of laser welding equipment, the multi-station laser welding device comprises a rack, a working table, a turntable, a jacking mechanism and a press-down mold closing mechanism, the working table is arranged in the rack; the turntable is rotationally mounted at the upper end of the workbench, and two groups of placing tables are symmetrically arranged at the upper end of the turntable; the jacking mechanism is arranged on the rear side of the lower end of the turntable; the lower pressing mold closing mechanism is installed in the middle of the installation plate, the installation plate is fixedly connected to the upper end of the supporting frame, the lower end of the supporting frame is fixedly connected to the upper end of the workbench, the supporting frame is arranged on the rear side of the rotary disc, and a displacement sensor is fixedly installed at the lower end of the installation plate. In addition, in the welding process, through cooperation of the jacking mechanism and the pressing-down die assembly mechanism, dislocation of the workpieces in the welding process is avoided, and meanwhile the high-precision displacement sensor is matched, so that the yield of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding equipment, in particular to a multi-station laser welding device. Background Art

[0002] With the application and popularization of various new materials in the industrial field today, various new technologies related to material processing have also begun to emerge and continue to develop. Among them, laser welding technology, especially laser welding technology for plastic workpieces, has developed rapidly. Specifically, laser welding refers to an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. During welding, two components need to be assembled and spliced ​​before welding.

[0003] Traditional laser welding devices weld single products, with low production efficiency and cannot meet production needs. At the same time, traditional laser welding devices are prone to vibration or other unexpected factors, which may cause misalignment of the joints of products during welding, and the misalignment cannot be detected. Therefore, it is easy to make welding misjudgments due to insufficient manual experience, resulting in incomplete welding or repeated welding. Based on this, this solution provides a multi-station laser welding device to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, a multi-station laser welding device is provided. This technical solution solves the problem that the traditional laser welding devices mentioned in the above background technology all weld single products, have low production efficiency, and cannot meet production needs. At the same time, the traditional laser welding devices are prone to vibration or other unexpected factors, which may cause the connection of the product during the welding process to be misaligned, and the misalignment cannot be detected. Therefore, it is easy to make welding misjudgments due to insufficient manual experience, resulting in incomplete welding or repeated welding.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A multi-station laser welding device comprises a frame, a workbench, a turntable, a lifting mechanism, and a downward pressure mold clamping mechanism, wherein the frame is made of aluminum alloy, a visual window is arranged at the front end of the frame, a display is installed inside the frame, a touch screen is arranged at the lower side of the display, and the touch screen is electrically connected to the display; a workbench, the workbench is arranged inside the frame; a turntable, rotatably installed at the upper end of the workbench, and two groups of placement tables are symmetrically arranged at the upper end of the turntable; a lifting mechanism, arranged at the rear side of the lower end of the turntable, and installed at the rear side of the upper end of the workbench; a downward pressure mold clamping mechanism, installed at the middle part of a mounting plate, the mounting plate is fixedly connected to the upper end of a support frame, the lower end of the support frame is fixedly connected to the upper end of the workbench, and the support frame is arranged at the rear side of the turntable.

[0007] Preferably, the lifting mechanism includes a fixed plate and a lifting cylinder, the fixed plate is fixedly connected to the upper end of the workbench, the lifting cylinder is fixedly installed on the upper end of the fixed plate, the output end of the lifting cylinder is fixedly connected to a moving frame, the lower end of the moving frame is slidably connected to a pair of guide rails, the two guide rails are symmetrically installed on the left side of the upper end of the fixed plate, the front and rear ends of the moving frame are provided with track grooves, the interior of the track groove is provided with a follower cam, the other end of the follower cam is fixedly connected to the top plate, the outer wall of the top plate is slidably connected to the inner wall of the moving frame, the lower end of the top plate is fixedly connected to a plurality of guide shafts, the other end of the guide shaft extends out of the lower end of the fixed plate and is slidably connected to a guide bearing, and the guide bearing is fixedly installed at the lower end of the fixed plate.

[0008] Preferably, the downward pressure mold clamping mechanism includes a downward pressure cylinder, which is fixedly mounted on the upper end of the mounting plate, and a pair of downward pressure cylinders are provided and the two downward pressure cylinders are symmetrically mounted, and the output end of the downward pressure cylinder passes through the mounting plate and is fixedly connected to a connecting plate, and a plurality of groups of telescopic rods are fixedly connected to the upper end of the connecting plate, and the other end of the telescopic rod is fixedly connected to the lower end of the mounting plate, and downward pressure plates are fixedly connected on both sides of the lower end of the connecting plate.

[0009] Preferably, a safety plate is provided at the upper end of the turntable, and the safety plate is located at the midline of the turntable.

[0010] Preferably, a pilot check valve is installed in the middle of the mounting plate, and the pilot check valve is arranged at the air inlet of the downward pressure cylinder. A displacement sensor is fixedly installed on the right side of the lower end of the mounting plate.

[0011] Preferably, a side door is installed at the right end of the rack, and the side door is equipped with a safety door lock. A double door is installed at the rear end of the rack, and the double door is also equipped with a safety door lock. A pneumatic triplet is installed on the lower side of the rear end of the rack, and a three-color light is installed on the top of the rack.

[0012] Preferably, an electrical panel is provided inside the double-door, and a maintenance window is installed on the lower side of the electrical panel.

[0013] Compared with the prior art, the utility model proposes a multi-station laser welding device, which has the following beneficial effects:

[0014] 1. In the utility model, the workpieces to be welded are assembled and placed on the placing table of the turntable. The workpieces placed on the placing table are welded in turn through the rotation of the turntable, thereby improving the production efficiency. At the same time, a safety plate is provided to avoid sparks flying out and injuring people during the welding process.

[0015] 2. The utility model is provided with a lifting mechanism and a downward-pressing mold-closing mechanism. The lifting mechanism drives the moving frame to move through the lifting cylinder. During the movement of the moving frame, the track groove drives the follower cam to move, so that the follower cam drives the top plate to rise, thereby abutting against the lower end of the workpiece placed on the placing table. The downward-pressing mold-closing mechanism drives the connecting plate to move downward through the downward-pressing cylinder, so that the lower pressure plate abuts against the upper end of the workpiece. The lifting mechanism and the downward-pressing mold-closing mechanism cooperate with each other to avoid dislocation of the product connection caused by vibration or other unexpected reasons during the welding process, avoid unqualified product welding, ensure the product yield, prevent the waste of production materials, and thus reduce the production cost.

[0016] 3. In the utility model, the displacement of the workpiece during the laser welding process is accurately known by means of a high-precision displacement sensor, so that the operator can accurately judge whether the welding is completed and whether the welding result meets the standard based on the displacement of the plastic workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model from a rear-view perspective;

[0019] Figure 3 It is a schematic diagram of the overall internal structure of the utility model from a rear view perspective;

[0020] Figure 4 It is a structural schematic diagram of the turntable, the lifting mechanism and the downward pressing mold clamping mechanism in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the lower pressure clamping mechanism in the utility model;

[0022] Figure 6 It is a structural schematic diagram of the jacking mechanism in the utility model;

[0023] Figure 7 It is a structural schematic diagram of the jacking mechanism in the utility model from a second viewing angle.

[0024] The numbers in the figure are:

[0025] 1. Rack; 2. Workbench; 3. Display; 4. Touch screen; 5. Visual window; 6. Side door; 7. Double door; 8. Pneumatic triplex; 9. Three-color light; 10. Electrical panel; 11. Maintenance window; 12. Turntable; 1201. Placement table; 13. Safety plate; 14. Support frame; 15. Mounting plate; 16. Lifting mechanism; 1601. Fixed plate; 1602. Lifting cylinder; 1603. Moving frame; 1604. Guide rail; 1605. Track groove; 1606. Follow-up cam; 1607. Top plate; 1608. Guide shaft; 1609. Guide bearing; 17. Down-pressing mold clamping mechanism; 1701. Down-pressing cylinder; 1702. Telescopic rod; 1703. Connecting plate; 1704. Down-pressing plate; 18. Pilot check valve; 19. Displacement sensor. DETAILED DESCRIPTION

[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0027] Reference Figure 1-7 As shown, a multi-station laser welding device includes a frame 1, a workbench 2, a turntable 12, a lifting mechanism 16, and a pressing mold clamping mechanism 17, wherein the frame 1 is made of aluminum alloy, a visual window 5 is provided at the front end of the frame 1, a display 3 is installed inside the frame 1, a touch screen 4 is provided at the lower side of the display 3, and the touch screen 4 is electrically connected to the display 3;

[0028] A workbench 2, wherein the workbench 2 is arranged inside the frame 1;

[0029] The turntable 12 is rotatably mounted on the upper end of the workbench 2, and two sets of placement tables 1201 are symmetrically arranged on the upper end of the turntable 12;

[0030] The lifting mechanism 16 is arranged at the rear side of the lower end of the turntable 12 and installed at the rear side of the upper end of the workbench 2;

[0031] The mold clamping mechanism 17 is mounted in the middle of the mounting plate 15 . The mounting plate 15 is fixedly connected to the upper end of the support frame 14 . The lower end of the support frame 14 is fixedly connected to the upper end of the workbench 2 . The support frame 14 is arranged on the rear side of the turntable 12 .

[0032] A pilot check valve 18 is installed in the middle of the mounting plate 15. The pilot check valve 18 is arranged at the air inlet of the downward pressure cylinder 1701. It can control the movement direction of the downward pressure cylinder 1701 and prevent the backflow of the downward pressure cylinder 1701 itself, so as to ensure the normal movement of the cylinder. A displacement sensor 19 is fixedly installed on the right side of the lower end of the mounting plate 15. The displacement sensor 19 can be Keyence LK-G series. LK-G series is a high-precision laser displacement sensor with very high measurement accuracy and stability. The sensor can be any sensor that can realize this function in the existing technology without limitation. After the workpieces to be welded are assembled, the device places them on the placement table 1201 of the turntable 12. The workpieces placed on the placement table 1201 are welded in turn by the rotation of the turntable 12, thereby improving production efficiency. When the workpiece is moved to the specified position through the turntable 12, the lifting mechanism 16 and the downward pressure mold clamping mechanism 17 are started to limit the workpiece to facilitate subsequent welding processing. The high-precision displacement sensor 19 is used to accurately obtain the displacement of the workpiece during the laser welding process, so that the operator can accurately judge whether the welding is completed and whether the welding result meets the standard based on the displacement of the plastic workpiece.

[0033] Specifically, in this embodiment, the lifting mechanism 16 includes a fixed plate 1601 and a lifting cylinder 1602, the fixed plate 1601 is fixedly connected to the upper end of the workbench 2, the lifting cylinder 1602 is fixedly installed on the upper end of the fixed plate 1601, the output end of the lifting cylinder 1602 is fixedly connected to a moving frame 1603, the lower end of the moving frame 1603 is slidably connected to a pair of guide rails 1604, the two guide rails 1604 are symmetrically installed on the left side of the upper end of the fixed plate 1601, and the front and rear ends of the moving frame 1603 are both provided with There is a track groove 1605, and a follower cam 1606 is arranged inside the track groove 1605. The other end of the follower cam 1606 is fixedly connected to the top plate 1607. The outer wall of the top plate 1607 is slidably connected to the inner wall of the mobile frame 1603. The lower end of the top plate 1607 is fixedly connected with a plurality of guide shafts 1608. The other end of the guide shaft 1608 extends out of the lower end of the fixed plate 1601 and is slidably connected to the guide bearing 1609. The guide bearing 1609 is fixedly installed at the lower end of the fixed plate 1601. After the jacking mechanism 16 is started, the mobile frame 1603 is driven to move by the jacking cylinder 1601. During the movement of the mobile frame 1603, the follower cam 1606 is driven to move by the track groove 1605, so that the follower cam 1606 drives the top plate 1607 to rise, thereby abutting against the lower end of the workpiece placed on the placement table 1201.

[0034] Specifically, in this embodiment, the downward pressing mold clamping mechanism 17 includes a downward pressing cylinder 1701, which is fixedly mounted on the upper end of the mounting plate 15. A pair of downward pressing cylinders 1701 are provided and the two downward pressing cylinders 1701 are symmetrically mounted. The output end of the downward pressing cylinder 1701 passes through the mounting plate 15 and is fixedly connected to a connecting plate 1703. The upper end of the connecting plate 1703 is fixedly connected to a plurality of groups of telescopic rods 1702. The other end of the telescopic rods 1702 is fixedly connected to the lower end of the mounting plate 15. Both sides of the lower end of the connecting plate 1703 are fixedly connected to downward pressing plates 1704. The down-pressing mold-closing mechanism 17 drives the connecting plate 1703 to move downward through the down-pressing cylinder 1701, so that the down-pressing plate 1704 abuts against the upper end of the workpiece. The lifting mechanism 16 and the down-pressing mold-closing mechanism 17 cooperate with each other to avoid misalignment of the product connection due to vibration or other unexpected reasons during the welding process, avoid unqualified product welding, ensure the product yield, prevent the waste of production materials, and thus reduce production costs.

[0035] Specifically, in this embodiment, a safety plate 13 is provided at the upper end of the turntable 12, and the safety plate 13 is located at the midline position of the turntable 12. By providing the safety plate 13, it is avoided that sparks fly out and injure people during the welding process.

[0036] Specifically, in this embodiment, a side door 6 is installed at the right end of the frame 1, and the side door 6 is equipped with a safety door lock.

[0037] Specifically, in this embodiment, a double door 7 is installed at the rear end of the rack 1, and the double door 7 is also equipped with a safety door lock. A pneumatic triplet 8 is installed at the lower side of the rear end of the rack 1, and a three-color light 9 is installed at the top of the rack 1.

[0038] Specifically, in the present embodiment, an electrical panel 10 is disposed inside the double-leaf door 7 , and a maintenance window 11 is installed at the lower side of the electrical panel 10 .

[0039] The working principle of the utility model is as follows: the user of the device controls the device through the touch screen 4 and checks various data of the device through the display screen 3. After assembling the workpiece to be welded, the workpiece is placed on the placement table 1201 of the turntable 12. Then, the turntable 12 is controlled to rotate. After the workpiece is moved to the specified position through the turntable 12, the lifting mechanism 16 and the pressing mold clamping mechanism 17 are started to limit the workpiece: after the lifting mechanism 16 is started, the moving frame 1603 is driven to move by the lifting cylinder 1601. During the movement of the moving frame 1603, the track groove 1605 drives the follower cam 1606 to move. , and then the follower cam 1606 drives the top plate 1607 to rise, so that it abuts against the lower end of the workpiece placed on the placement table 1201; after the downward pressure clamping mechanism 17 is started, the connecting plate 1703 is driven downward by the downward pressure cylinder 1701, so that the lower pressure plate 1704 abuts against the upper end of the workpiece, and the lifting mechanism 16 and the downward pressure clamping mechanism 17 cooperate with each other to avoid the misalignment of the product connection due to vibration or other unexpected reasons during the welding process, avoid unqualified product welding, ensure the product yield, prevent the waste of production materials, and thus reduce the production cost.

[0040] During the welding process of the workpiece, the displacement of the workpiece during the laser welding process is accurately known through the high-precision displacement sensor 19, so that the operator can accurately judge whether the welding is completed and whether the welding result meets the standard based on the displacement of the plastic workpiece.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-station laser welding device, characterized in that: The invention comprises a frame (1), a workbench (2), a turntable (12), a lifting mechanism (16), and a pressing mold clamping mechanism (17), wherein the frame (1) is made of aluminum alloy, a visual window (5) is arranged at the front end of the frame (1), a display (3) is installed inside the frame (1), a touch screen (4) is arranged at the lower side of the display (3), and the touch screen (4) is electrically connected to the display (3); A workbench (2), wherein the workbench (2) is arranged inside the frame (1); A turntable (12) is rotatably mounted on the upper end of the workbench (2), and two sets of placement tables (1201) are symmetrically arranged on the upper end of the turntable (12); A lifting mechanism (16) is arranged at the rear side of the lower end of the turntable (12) and installed at the rear side of the upper end of the workbench (2); The mold clamping mechanism (17) is mounted in the middle of the mounting plate (15), the mounting plate (15) is fixedly connected to the upper end of the support frame (14), the lower end of the support frame (14) is fixedly connected to the upper end of the workbench (2), and the support frame (14) is arranged on the rear side of the turntable (12).

2. A multi-station laser welding device according to claim 1, characterized in that: The lifting mechanism (16) comprises a fixed plate (1601) and a lifting cylinder (1602), wherein the fixed plate (1601) is fixedly connected to the upper end of the workbench (2), and the lifting cylinder (1602) is fixedly installed on the upper end of the fixed plate (1601). The output end of the lifting cylinder (1602) is fixedly connected to a moving frame (1603), and the lower end of the moving frame (1603) is slidably connected to a pair of guide rails (1604). The two guide rails (1604) are symmetrically installed on the left side of the upper end of the fixed plate (1601). The front and rear ends of the moving frame (1603) are both provided with track grooves. (1605), a follower cam (1606) is arranged inside the track groove (1605), the other end of the follower cam (1606) is fixedly connected to the top plate (1607), the outer wall of the top plate (1607) is slidably connected to the inner wall of the movable frame (1603), the lower end of the top plate (1607) is fixedly connected to a plurality of guide shafts (1608), the other end of the guide shaft (1608) extends out of the lower end of the fixed plate (1601) and is slidably connected to the guide bearing (1609), and the guide bearing (1609) is fixedly installed on the lower end of the fixed plate (1601).

3. The multi-station laser welding device according to claim 1, characterized in that: The downward pressing mold clamping mechanism (17) comprises a downward pressing cylinder (1701), which is fixedly mounted on the upper end of the mounting plate (15). The downward pressing cylinder (1701) is provided with a pair of downward pressing cylinders (1701) and the two downward pressing cylinders (1701) are symmetrically mounted. The output end of the downward pressing cylinder (1701) passes through the mounting plate (15) and is fixedly connected to a connecting plate (1703). The upper end of the connecting plate (1703) is fixedly connected to a plurality of groups of telescopic rods (1702). The other end of the telescopic rod (1702) is fixedly connected to the lower end of the mounting plate (15). Both sides of the lower end of the connecting plate (1703) are fixedly connected to downward pressing plates (1704).

4. The multi-station laser welding device according to claim 1, characterized in that: A safety plate (13) is provided at the upper end of the rotating disk (12), and the safety plate (13) is located at the center line of the rotating disk (12).

5. The multi-station laser welding device according to claim 3, characterized in that: A pilot check valve (18) is installed in the middle of the mounting plate (15), and the pilot check valve (18) is arranged at the air inlet of the downward pressure cylinder (1701). A displacement sensor (19) is fixedly installed on the right side of the lower end of the mounting plate (15).

6. The multi-station laser welding device according to claim 1, characterized in that: The right end of the frame (1) is provided with a side door (6), the side door (6) is equipped with a safety door lock, the rear end of the frame (1) is provided with a double door (7), the double door (7) is provided with a safety door lock, the lower side of the rear end of the frame (1) is provided with a pneumatic triplet (8), and the top of the frame (1) is provided with a three-color lamp (9).

7. The multi-station laser welding device according to claim 6, characterized in that: An electrical panel (10) is arranged inside the double-leaf door (7), and a maintenance window (11) is installed on the lower side of the electrical panel (10).

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