Railway wagon door lock box partition robot welding device

Abstract

The utility model relates to the technical field of lock box partition plate welding, and disclose a railway freight car door lock box partition plate robot welding device, including two -way screw rod, and rotate and connect in the cavity on the penetration, threaded block, symmetrical and screw connection in two -way screw rod outside, threaded block and cavity slide connection, clamping plate, symmetrical and fixedly connected in threaded block top, pressure sensor, set up in one side clamping plate inner side wall. The lock box is placed in the frame body top, and then through the controller starts motor no.

Description

Technical Field

[0001] This utility model relates to the field of lock box partition welding technology, specifically a robotic welding device for railway freight car door lock box partitions. Background Technology

[0002] The partition plate of a railway freight car door lock box is a dividing component inside the lock box, usually a plate-like structure. Its function is to divide the interior of the lock box into different spaces to install various lock components, such as lock shafts and round tubes. From the outside, the partition plate is generally a rectangular plate with a through hole in the middle to allow components such as lock shafts to pass through.

[0003] According to Chinese Utility Model Publication No. CN221791576U, a welding fixture for the side door lock box of an open railway freight car is disclosed. The fixture includes a welding table, a lock box welding tilting frame, a hydraulic telescopic rod, a clamping plate, a first motor, and a welding machine housing. The drive shaft of the first motor passes through a vertical plate and is connected to one end of the lock box welding tilting frame. The other end of the lock box welding tilting frame is connected to the vertical plate via a rotating shaft and bearing. Fixed support plates are installed on both ends of the lock box welding tilting frame. A hydraulic telescopic rod is installed on the right-side fixed support plate, and a clamping plate is installed at the end of the hydraulic telescopic rod. This utility model allows the first motor to drive the lock box welding tilting frame to rotate at multiple angles. The rotation of the lock box welding tilting frame drives the side door lock box to rotate. During the rotation of the side door lock box, workers can easily perform welding operations at different angles using a welding torch, rotating the side door lock box to the optimal welding angle. This method is time-saving, labor-saving, precise in control, easy to operate, highly efficient, and has a high yield rate.

[0004] The above-mentioned disclosure allows the lock box to be flipped, but the fixed spacing of the limiting baffles makes it inconvenient to fix lock boxes of different widths. When a lock box with a smaller width is placed between the limiting baffles, it is easy for the lock box to shake when flipped. When the lock box with a larger width is placed between the limiting baffles, it cannot be placed between the limiting baffles. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a robotic welding device for railway freight car door lock box partitions, which has the advantage of strong applicability. It solves the problems of the above-disclosed device, which can flip the lock box, but the fixed spacing of the limiting baffles makes it inconvenient to fix lock boxes of different widths. When a smaller lock box is placed between the limiting baffles, it is easy for the lock box to shake when flipped. When the lock box is wider, it cannot be placed between the limiting baffles.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a robotic welding device for railway freight car door lock box partitions, comprising a main component, wherein the main component includes: The platform has a lock box on top; Partitions are symmetrically arranged inside the lock box; The welding mechanism is located at the top of the platform; The main component is provided with an operation component, which includes: The base is rotatably connected to the through slot opened in the platform; The frame is fixedly connected to the top of the base; A cavity is symmetrically formed at the top of the frame; A bidirectional lead screw passes through and is rotatably connected to the cavity; Motor 1 is located on the outer wall of the frame, and the output shaft of Motor 1 is fixedly connected to one end of the bidirectional lead screw. A threaded block is symmetrically and threadedly connected to the outside of the bidirectional lead screw, and the threaded block is slidably connected to the cavity; Clamping plates are symmetrically and fixedly connected to the top of the threaded block; A pressure sensor is disposed on the inner side wall of one side of the clamping plate; A rotating mechanism is mounted on the platform.

[0007] Preferably, the rotating mechanism includes: A pivot shaft passes through the base and the frame, and is rotatably connected to the platform; A groove is formed at the top of the platform; Motor 2 is located at the top of the groove, and the output shaft of Motor 2 is fixedly connected to one end of the rotating shaft.

[0008] Preferably, a controller is provided on the top of the platform, and the controller is electrically connected to the welding mechanism, the first motor, the pressure sensor, and the second motor.

[0009] Preferably, a telescopic shell is provided on both the inner wall of the cavity and the facing surface of the threaded block, and the telescopic shell is located above the bidirectional lead screw.

[0010] Preferably, a bracket is fixedly connected to the top of the platform, and a crosshair laser is provided at the bottom of the bracket. The crosshair laser is electrically connected to the controller.

[0011] Preferably, the opposing surfaces of the clamping plates are provided with rubber pads.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a robotic welding device for railway freight car door lock box partitions, which has the following advantages: This welding device boasts strong applicability. The lock box is placed on top of the frame, and then a controller starts motor one, which drives a bidirectional lead screw to rotate. The threaded blocks connected to the lead screw cause the clamping plates to move closer together. When pressure sensors mounted on the clamping plates contact the outer wall of the lock box, they detect pressure. When the pressure reaches a set threshold, the pressure sensors send an electrical signal to the controller, which then shuts off motor one. At this point, the clamping plates on both sides provide stable support for the lock box. The adjustable spacing of the clamping plates facilitates the fixing of lock boxes of different widths. The operator then uses a rotating mechanism to flip the frame, allowing adjustment of the angle of the fixed lock boxes on the frame, ensuring the weld seam is in the ideal position for welding. This solves the problems of the previously disclosed device, which allows for lock box flipping but has fixed spacing between the limiting baffles, making it difficult to fix lock boxes of different widths. Smaller lock boxes placed between the limiting baffles tend to wobble during flipping, while wider lock boxes cannot be placed between the limiting baffles. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the right-side structure of this utility model; Figure 4 This is a schematic diagram of the frame flipping structure in this utility model; Figure 5 This is a frontal cross-sectional view of the platform and frame structure in this utility model.

[0014] In the picture: 1. Main components; 11. Platform; 12. Lock box; 13. Partition; 14. Welding mechanism; 2. Operating components; 21. Base; 22. Frame; 221. Cavity; 23. Bidirectional lead screw; 231. Motor 1; 24. Threaded block; 25. Clamping plate; 26. Pressure sensor; 27. Rotating mechanism; 271. Rotating shaft; 272. Groove; 273. Motor 2; 3. Controller; 4. Telescopic shell; 5. Rubber pad; 6. Crosshair laser; 61. Bracket. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 See Figure 1-5 A robotic welding device for railway freight car door lock box partitions includes a main component 1, which includes: a platform 11 with a lock box 12 on its top; partitions 13 symmetrically arranged inside the lock box 12; and a welding mechanism 14 disposed on the top of the platform 11. An operating component 2 is also disposed on the main component 1, which includes: a base 21 rotatably connected to a through slot in the platform 11; a frame 22 fixedly connected to the top of the base 21; and cavities 221 symmetrically formed on the top of the frame 22. A bidirectional lead screw 23 passes through and is rotatably connected to the cavity 221; a motor 231 is disposed on the outer wall of the frame 22, and the output shaft of the motor 231 is fixedly connected to one end of the bidirectional lead screw 23; a threaded block 24 is symmetrically and threadedly connected to the outside of the bidirectional lead screw 23, and the threaded block 24 is slidably connected to the cavity 221; a clamping plate 25 is symmetrically and fixedly connected to the top of the threaded block 24; a pressure sensor 26 is disposed on the inner side wall of one side of the clamping plate 25; and a rotating mechanism 27 is disposed on the platform 11. The rotating mechanism 27 includes: a rotating shaft 271, passing through the base 21 and the frame 22, and the rotating shaft 271 is rotatably connected to the platform 11; a groove 272 is formed on the top of the platform 11; and a second motor 273 is disposed on the top of the groove 272, and the output shaft of the second motor 273 is fixedly connected to one end of the rotating shaft 271. The platform 11 is equipped with a controller 3 on its top, which is electrically connected to the welding mechanism 14, the first motor 231, the pressure sensor 26, and the second motor 273.

[0017] In use, the operator places the lock box 12 on top of the frame 22, and then starts the motor 231 through the controller 3. The motor 231 drives the bidirectional lead screw 23 to rotate. The threaded block 24 connected to the bidirectional lead screw 23 drives the clamping plates 25 to move closer to each other. When the pressure sensor 26 installed on the clamping plate 25 contacts the outer wall of the lock box 12, it detects the pressure. When the pressure reaches the set threshold, the pressure sensor 26 sends an electrical signal to the controller 3, and the controller 3 shuts off the motor 231. At this time, the clamping plates 25 on both sides provide a stable support for the lock box 12. The adjustable clamping plates 25 are easy to adapt to the fixing of lock boxes 12 of different widths. The operator then uses the rotating mechanism 27 to flip the frame 22, facilitating the adjustment of the angle of the lock box 12 fixed on the frame 22. This ensures that the weld seam to be welded is in the ideal position, facilitating welding by the welding mechanism 14. The operator starts the second motor 273 via the controller 3. The second motor 273 drives the rotating shaft 271 to rotate, which in turn rotates the external frame 22 and the base 21. The operator controls the rotation angle of the second motor 273 via the controller 3. After the lock box 12 is adjusted, the welding mechanism 14 performs the welding operation between the lock box 12 and the partition 13.

[0018] The aforementioned welding mechanism 14 employs conventional technology, including components such as a robot with an articulated robotic arm, a welding system, a welding power source, a wire feeding mechanism, a welding torch, and a workpiece positioning system. After the locking box 12 is fixed, the controller 3 commands the robot and positioner to begin operation. Subsequently, the robot moves the welding torch to the arc initiation point to precisely weld the weld at position A. After one weld is completed, the system determines whether all welds are finished. If not, the above steps are repeated: the positioner flips to position B, the robot welds at position B, and so on, until all welds at all positions are completed. The goal is simply to achieve the welding of the locking box 12 and the partition 13; the specific structure will not be described in detail here.

[0019] Example 2 An auxiliary function has been added based on Embodiment 1.

[0020] See Figure 1-5 The inner wall of the cavity 221 and the facing surface of the threaded block 24 are both provided with telescopic shells 4, which are located above the bidirectional lead screw 23. A bracket 61 is fixedly connected to the top of the platform 11, and a crosshair laser 6 is provided at the bottom of the bracket 61. The crosshair laser 6 is electrically connected to the controller 3. Rubber pads 5 are provided on the facing surfaces of the clamping plates 25.

[0021] When the threaded block 24 drives the clamping plates 25 closer together, the telescopic shell 4 fixed on the facing side of the threaded block 24 retracts, and the telescopic shell 4 fixed on the outer side extends. When the threaded block 24 drives the clamping plates 25 away from each other, the telescopic shell 4 fixed on the facing side of the threaded block 24 extends, and the telescopic shell 4 fixed on the outer side retracts. The telescopic shell 4 blocks the cavity 221 to prevent foreign objects from entering the cavity 221 and affecting the normal movement of the bidirectional lead screw 23 and the threaded block 24. The crosshair laser 6 projects the center line of the frame 22. The worker can align the center line of the lock box 12 blank in his hand with this light and shadow. At this time, the lock box 12 is placed in the center of the frame 22, which makes it easier for the clamping plates 25 on both sides to stably clamp the lock box 12. When the clamping plates 25 clamp the lock box 12, the rubber pad 5 on the inner side wall of the clamping plate 25 contacts the outer wall of the lock box 12, increasing the friction between the clamping plate 25 and the lock box 12, and improving the fixing effect.

[0022] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robotic welding device for railway freight car door lock box partitions, comprising a main component (1), wherein the main component (1) includes: Platform (11), with a lock box (12) on its top; A partition (13) is symmetrically arranged inside the lock box (12); Welding mechanism (14) is located on top of the platform (11); The feature is that: an operation component (2) is provided on the main body component (1), and the operation component (2) includes: The base (21) is rotatably connected to the through slot opened in the platform (11); The frame (22) is fixedly connected to the top of the base (21); A cavity (221) is symmetrically opened on the top of the frame (22); A bidirectional lead screw (23) passes through and is rotatably connected to the cavity (221); Motor 1 (231) is located on the outer wall of the frame (22), and the output shaft of Motor 1 (231) is fixedly connected to one end of the bidirectional lead screw (23); A threaded block (24) is symmetrically and threadedly connected to the outside of the bidirectional lead screw (23), and the threaded block (24) is slidably connected to the cavity (221); The clamping plate (25) is symmetrically and fixedly connected to the top of the threaded block (24); A pressure sensor (26) is disposed on the inner wall of one side of the clamp (25); A rotating mechanism (27) is mounted on the platform (11).

2. The robotic welding device for railway freight car door lock box partitions according to claim 1, characterized in that: The rotating mechanism (27) includes: A pivot (271) passes through the base (21) and the frame (22), and the pivot (271) is rotatably connected to the platform (11); A groove (272) is formed on the top of the platform (11); Motor 2 (273) is located at the top of the groove (272), and the output shaft of Motor 2 (273) is fixedly connected to one end of the rotating shaft (271).

3. The robotic welding device for railway freight car door lock box partitions according to claim 2, characterized in that: The platform (11) is equipped with a controller (3) on top, which is electrically connected to the welding mechanism (14), the first motor (231), the pressure sensor (26), and the second motor (273).

4. The robotic welding device for railway freight car door lock box partitions according to claim 3, characterized in that: The inner wall of the cavity (221) and the facing surface of the threaded block (24) are both provided with telescopic shells (4), and the telescopic shells (4) are located above the bidirectional lead screw (23).

5. The robotic welding device for railway freight car door lock box partitions according to claim 4, characterized in that: The platform (11) is fixedly connected to a bracket (61) at the top, and a crosshair laser (6) is provided at the bottom of the bracket (61). The crosshair laser (6) is electrically connected to the controller (3).

6. The robotic welding device for railway freight car door lock box partitions according to claim 5, characterized in that: Rubber pads (5) are provided on the opposing surfaces of the clamping plates (25).

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