Welding detection mechanism of multi-station laser welding device

Abstract

The utility model discloses a welding detection mechanism of a multi-station laser welding device, which relates to the technical field of laser welding equipment and comprises a rack, a workbench and a turntable, a jacking mechanism is arranged on the rear side of the lower end of the turntable, and a plurality of groups of support frames are arranged on the outer side of the rear end of the turntable. The multiple supporting frames are fixedly mounted at the upper end of the workbench, the upper ends of the multiple supporting frames are fixedly connected with the mounting plate, a displacement sensor is fixedly mounted on the right side of the lower end of the mounting plate, and a lower pressing mold closing mechanism and a pilot check valve are mounted in the middle of the mounting plate; according to the device, in the welding process, the jacking mechanism and the pressing-down mold closing mechanism are matched with the high-precision displacement sensor, so that the displacement amount, obtained by the displacement sensor, of the workpiece is the real displacement of the workpiece in the welding process, and then whether welding of the workpiece is completed or not and whether the welding result meets the expectation or not are conveniently judged through a database; and the problems of unfinished welding or repeated welding and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding equipment, in particular to a welding detection mechanism of 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] In existing laser welding equipment, it is impossible to detect the small displacement between workpieces during welding, and it is impossible to effectively know and monitor whether the workpieces are welded and whether the welding results meet expectations through standardized data information. 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 welding detection mechanism for a multi-station laser welding device to solve the above-mentioned problems. Utility Model Content

[0004] In order to solve the above technical problems, a welding detection mechanism for a multi-station laser welding device is provided. The technical solution solves the problem raised in the above background technology that in the existing laser welding equipment, it is impossible to detect the small displacement between the workpieces during welding, and it is impossible to effectively know and monitor whether the welding of the workpieces is completed and whether the welding results meet the expectations through standardized data information. 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 welding detection mechanism of a multi-station laser welding device comprises a frame, a workbench and a turntable, wherein a workbench is arranged inside the frame, a turntable is rotatably mounted on the upper end of the workbench, two sets of placing tables are symmetrically arranged on the upper end of the turntable, a lifting mechanism is arranged on the rear side of the lower end of the turntable, a plurality of support frames are arranged on the outer side of the rear end of the turntable, a plurality of the support frames are fixedly mounted on the upper end of the workbench, and the upper ends of the plurality of the support frames are fixedly connected to a mounting plate, a displacement sensor is fixedly mounted on the right side of the lower end of the mounting plate, and a lower pressing joint is installed in the middle of the mounting plate. The mold mechanism and the pilot check valve, 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, and the outer side wall of the top plate is slidably connected to the inner wall of the moving frame.

[0007] Preferably, a plurality of guide shafts are fixedly connected to the lower end of the top plate, 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 mounted on 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, the pilot check valve is arranged at the air inlet of the downward pressure cylinder.

[0011] It has the following beneficial effects:

[0012] 1. The utility model is provided with a lifting mechanism and a downward clamping mechanism, which cooperate with each other to ensure the stability of the workpiece during the welding process, avoid the misalignment of the product connection due to vibration or other unexpected reasons during the welding process, and then cause the product welding to be unqualified, thereby ensuring the product yield, preventing the waste of production materials, and reducing the production cost.

[0013] 3. In the utility model, a high-precision displacement sensor is provided, so that the displacement of the workpiece during the laser welding process can be accurately known. The lifting mechanism and the downward clamping mechanism cooperate with each other to ensure the stability of the workpiece during the welding process, so that the displacement of the workpiece known by the displacement sensor is the real displacement of the workpiece during the welding process, and then it is convenient to judge whether the welding of the workpiece is completed and whether the welding result meets the expectations through a standardized data information database, avoiding problems such as incomplete welding or repeated welding, ensuring the yield of the product, preventing the waste of production materials, and thus reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the turntable, the lifting mechanism and the downward pressing mold clamping mechanism in the utility model;

[0015] Figure 2 It is a structural schematic diagram of the lower pressure clamping mechanism in the utility model;

[0016] Figure 3 It is a structural schematic diagram of the jacking mechanism in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the jacking mechanism in the utility model from a second viewing angle;

[0018] Figure 5 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 6 It is a schematic diagram of the overall structure of the utility model from a rear-view perspective;

[0020] Figure 7 It is a schematic diagram of the overall internal structure of the utility model from a rear view perspective.

[0021] The numbers in the figure are:

[0022] 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

[0023] 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.

[0024] Reference Figure 1-7 As shown, a welding detection mechanism of a multi-station laser welding device includes a frame 1, a workbench 2 and a turntable 12. The workbench 2 is arranged inside the frame 1. The turntable 12 is rotatably installed on the upper end of the workbench 2. Two groups of placement tables 1201 are symmetrically arranged on the upper end of the turntable 12. A lifting mechanism 16 is arranged on the rear side of the lower end of the turntable 12. Several groups of support frames 14 are arranged on the outer side of the rear end of the turntable 12. The multiple support frames 14 are fixedly installed on the upper end of the workbench 2, and the upper ends of the multiple support frames 14 are fixedly connected to the mounting plate 15. 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. The 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 achieve this function in the prior art without limitation. A down-pressing mold clamping mechanism 17 and a pilot check valve 18 are installed in the middle of the mounting plate 15. The device assembles the workpiece to be welded and places it 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 down-pressing mold clamping mechanism 17 are started to limit the workpiece, which is convenient for subsequent welding processing. Through the high-precision displacement sensor 19, the displacement of the workpiece during the laser welding process can be accurately known. The lifting mechanism 16 and the down-pressing mold clamping mechanism 17 cooperate with each other to ensure that the workpiece is stable during the welding process, so that the displacement of the workpiece obtained by the displacement sensor 19 is the real displacement of the workpiece during the welding process, and then it is convenient to judge whether the welding of the workpiece is completed and whether the welding result meets the expectations through a standardized data information database, avoiding problems such as incomplete welding or repeated welding, ensuring the yield of the product, preventing the waste of production materials, and reducing production costs.

[0025] 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.

[0026] 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 clamping 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 clamping mechanism 17 cooperate with each other to ensure the stability of the workpiece during the welding process, avoid the misalignment of the product connection due to vibration or other unexpected reasons during the welding process, and then cause the product welding to be unqualified, thereby ensuring the product yield, preventing the waste of production materials, and reducing production costs.

[0027] 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.

[0028] Specifically, in this embodiment, the pilot check valve 18 is arranged at the air inlet of the downward pressure cylinder 1701. By installing the pilot check valve 18 on the air inlet of the downward pressure cylinder 1701, the movement direction of the downward pressure cylinder 1701 can be controlled and the downward pressure cylinder 1701 itself can be prevented from backflow, thereby ensuring the normal movement of the cylinder.

[0029] Specifically, in this embodiment, 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. The touch screen 4 facilitates user operation, and at the same time, various data of the device are intuitively displayed in front of the user through the display screen 3.

[0030] 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.

[0031] 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.

[0032] 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 .

[0033] 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.

[0034] During the welding process of the workpiece, a high-precision displacement sensor 19 is provided so that the displacement of the workpiece during the laser welding process can be accurately known. The lifting mechanism 16 and the downward clamping mechanism 17 cooperate with each other to ensure the stability of the workpiece during the welding process, so that the displacement of the workpiece obtained by the displacement sensor 19 is the actual displacement of the workpiece during the welding process, and then it is convenient to judge whether the welding of the workpiece is completed and whether the welding result meets the expectations through a standardized data information database, avoiding problems such as incomplete welding or repeated welding, ensuring the yield of the product, preventing the waste of production materials, and thus reducing production costs.

[0035] 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 welding detection mechanism for a multi-station laser welding device, characterized in that: It comprises a frame (1), a workbench (2) and a turntable (12), wherein the frame (1) is provided with a workbench (2) inside, the upper end of the workbench (2) is rotatably mounted with a turntable (12), the upper end of the turntable (12) is symmetrically provided with two groups of placement tables (1201), the rear side of the lower end of the turntable (12) is provided with a lifting mechanism (16), the outer side of the rear end of the turntable (12) is provided with a plurality of support frames (14), a plurality of the support frames (14) are fixedly mounted on the upper end of the workbench (2), and the upper ends of the plurality of the support frames (14) are fixedly connected to a mounting plate (15), a displacement sensor (19) is fixedly mounted on the right side of the lower end of the mounting plate (15), and a downward pressure clamping mechanism (17) and a pilot check valve (18) are installed in the middle of the mounting plate (15); 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), 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 mounted on the left side of the upper end of the fixed plate (1601), and the front and rear ends of the movable frame (1603) are provided with track grooves (1605), and a follower cam (1606) is arranged inside the track groove (1605), and the other end of the follower cam (1606) is fixedly connected to the top plate (1607), and the outer wall of the top plate (1607) is slidably connected to the inner wall of the movable frame (1603).

2. The welding detection mechanism of the multi-station laser welding device according to claim 1 is characterized in that: 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 a guide bearing (1609), and the guide bearing (1609) is fixedly mounted on the lower end of the fixed plate (1601).

3. The welding detection mechanism of the multi-station laser welding device according to claim 1 is 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 welding detection mechanism of the multi-station laser welding device according to claim 1 is 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 welding detection mechanism of the multi-station laser welding device according to claim 1 is characterized in that: The pilot check valve (18) is arranged at the air inlet of the downward pressure cylinder (1701).

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