A robotic welding gun calibration device

Abstract

This utility model discloses a robotic welding torch calibration device, belonging to the field of welding torch calibration technology. The device includes a fixing component and a welding torch. Two top plates are fixedly connected to the top of the fixing component. A movable frame is horizontally slidably mounted on the adjacent surfaces of the two top plates. A clamping plate is movably connected to each movable frame. A bottom plate is fixedly connected to the side of the fixing component. This utility model allows the welding torch to pass directly through the two movable frames and support the welding torch's welding handle on two push plates. The operator then lowers the welding torch via a robot, causing the welding handle to press downwards against the two push plates, simultaneously moving the sliding frames downwards. The downward movement of the push plates pulls the movable frames via connecting rods, bringing the two clamping plates closer together to clamp and fix the welding torch's welding handle. Finally, the welding nozzle of the welding torch is calibrated by a calibration mechanism.

Description

Technical Field

[0001] This utility model relates to the field of welding torch calibration technology, and in particular to a robotic welding torch calibration device. Background Technology

[0002] Robotic welding torches are commonly used automation tools in automobile assembly. During normal use, it is common for the welding torch to collide with the workpiece. Once the welding torch touches the workpiece, it may deform, and the original welding trajectory of the robotic welding torch will change, which will cause the robot to be unable to accurately weld the weld.

[0003] A search revealed that patent CN223070711U discloses a robot welding torch calibration device, including a calibration box. The calibration box has an internal placement groove, and the bottom of the inner wall of the placement groove has a circular groove. Two sets of clamping plates are installed inside the placement groove, and a moving component is provided within the placement groove. A limiting component is provided on the front side of the calibration box. In this invention, through the cooperation of a disc, a first connecting rod, a connecting rod, and a second connecting rod, when the bottom of the robot welding torch contacts the top of the disc, the disc moves downwards due to the weight of the robot welding torch. This downward movement causes the first connecting rod to gradually change from an inclined state to a vertical state. The first connecting rod then drives the connecting rod to rotate, which in turn drives the second connecting rod to rotate. The rotation of the second connecting rod then pushes the clamping plates inwards to limit and correct the robot welding torch.

[0004] Analysis of the above technical solutions reveals that, due to the limited opening size at the top of the correction box and the relatively fixed movement distance of the clamping plates and the size of the disc, it is difficult to adapt to welding torches of different sizes, thus reducing the practicality of the welding torch correction device. Therefore, we provide a robotic welding torch correction device to solve these problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art and to provide a robot welding torch calibration device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A robotic welding torch calibration device includes a fixing component and a welding torch. Two top plates are fixedly connected to the top of the fixing component. A movable frame is horizontally slidably mounted on the adjacent surfaces of the two top plates. A locking plate is movably connected to each movable frame. A bottom plate is fixedly connected to the side of the fixing component. A sliding frame and a support mechanism for guiding and resetting the sliding frame are mounted on the bottom plate. Two opposing push plates and a displacement mechanism for adjusting the distance between the two push plates are mounted inside the sliding frame. The welding torch is located between the two locking plates and supported on the two push plates. Connecting rods are hinged to the sides of the two push plates, and the top ends of the two connecting rods are respectively hinged to the bottom surfaces of the two movable frames. A calibration mechanism for calibrating the welding torch is mounted at the bottom of the fixing component.

[0008] Preferably, the support mechanism includes a plurality of second guide rods, each of which is fixedly connected to the bottom surface of the sliding frame, the bottom end of each of the second guide rods extends through to the bottom of the base plate, and a first compression spring is sleeved on the surface of each of the second guide rods, with the two ends of the first compression springs respectively fixedly connected to the bottom surface of the sliding frame and the upper surface of the base plate.

[0009] Preferably, the displacement mechanism includes a bidirectional lead screw, which is rotatably connected to the inner wall of the sliding frame. One end of the bidirectional lead screw passes through the sliding frame and is fixedly connected to a handle. One end of each of the two push plates is slidably disposed in the sliding frame and threaded onto the bidirectional lead screw.

[0010] Preferably, the correction mechanism includes a bracket, which is fixed to the bottom of the fixing member. A correction rod is provided through the bracket, and a second compression spring is fixed to the bottom end of the correction rod. The second compression spring is sleeved on the surface of the bracket, and the top end of the second compression spring is fixed to the bracket.

[0011] Preferably, the side of the fixing member is rotatably connected to two correction wheels, and the barrel of the welding torch slides between the two correction wheels.

[0012] Preferably, each of the movable frames is provided with a mounting groove, and a screw is rotatably connected to the inner wall of each mounting groove. One end of the screw passes through the movable frame and is fixedly connected to a handle. The bottom ends of the two clamping plates are slidably disposed in the mounting groove and threaded onto the screw.

[0013] Preferably, two first guide rods are fixedly connected to one side of each of the two top plates, and two guide grooves are opened on each of the two movable frames, with the first guide rods inserted into the corresponding guide grooves.

[0014] Compared with the prior art, the present invention provides a robot welding torch calibration device, which has the following beneficial effects.

[0015] This invention, through the coordinated arrangement of a fixing component, welding torch, top plate, moving frame, clamping plate, bottom plate, sliding frame, support mechanism, push plate, displacement mechanism, connecting rod, and correction mechanism, allows the welding torch to pass directly through two moving frames and support the welding torch's welding tip on two push plates. The operator then uses a robot to lower the welding torch, causing the welding tip to press downwards against the two push plates, simultaneously moving the sliding frame downwards. The downward movement of the push plates pulls the moving frame via the connecting rod, bringing the two clamping plates closer together to clamp and fix the welding tip of the torch. Finally, the correction mechanism corrects the welding nozzle of the torch. This design offers greater convenience and flexibility. Furthermore, the push plates and clamping plates are adjustable in position, allowing for correction of welding torches of different sizes.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model after the welding torch is removed;

[0020] Figure 4 This utility model Figure 3 A partial upward-view diagram;

[0021] Figure 5 This is a schematic diagram of the structure of the card plate of this utility model;

[0022] Figure 6 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0023] In the picture:

[0024] 1. Fixing component; 2. Correction wheel; 3. Bracket; 4. Welding torch; 5. Correction rod; 6. Second compression spring; 7. Top plate; 8. Bottom plate; 9. Sliding frame; 10. Moving frame; 11. Clamping plate; 12. Second guide rod; 13. First compression spring; 14. Push plate; 15. Connecting rod; 16. Two-way lead screw; 17. Guide groove; 18. First guide rod; 19. Screw; 20. Mounting groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-6 A robotic welding torch calibration device includes a fixing component 1 and a welding torch 4. Two top plates 7 are fixedly connected to the top of the fixing component 1. Moving frames 10 are horizontally slidably mounted on adjacent surfaces of the two top plates 7, allowing the moving frames 10 to slide only horizontally on the top plates 7. Each moving frame 10 is movably connected to a locking plate 11, making the locking plate 11 position-adjustable to accommodate welding torches 4 of different sizes. A base plate 8 is fixedly connected to the side of the fixing component 1. A sliding frame 9 and a support mechanism for guiding and resetting the sliding frame 9 are mounted on the base plate 8. The support mechanism supports the sliding frame 9 and enables it to automatically reset. Two opposing push plates 14 and a displacement mechanism for adjusting the distance between the two push plates 14 are provided inside the sliding frame 9. The welding torch 4 is located between the two locking plates 11 and supported on the two push plates 14. Connecting rods 15 are hinged to the sides of both push plates 14, and the top ends of the two connecting rods 15 are... The welding torch 4 is hinged to the bottom of the two moving frames 10. The bottom of the fixing part 1 is provided with a correction mechanism for calibrating the welding nozzle. With the above structure, the welding torch 4 can be directly passed through the two moving frames 10 and the welding handle of the welding torch 4 is supported on the two push plates 14. At this time, the operator will drive the welding torch 4 to descend through the robot, so that the welding handle of the welding torch 4 is pressed down against the two push plates 14 and moves downward together, and drives the sliding frame 9 to move downward. At this time, the downward movement of the push plate 14 will pull the moving frame 10 to move through the connecting rod 15, so that the two clamping plates 11 are brought closer to each other and clamp and fix the welding handle of the welding torch 4. Finally, the welding nozzle of the welding torch 4 can be calibrated by the correction mechanism. It is more convenient and flexible to use. In addition, the push plate 14 and the clamping plate 11 have the feature of adjustable position, so they can be used to calibrate welding torches 4 of different sizes. The machinery, parts and equipment in this device all adopt conventional models in the existing technology, which will not be described in detail here.

[0027] like Figure 2 , Figure 4 and Figure 6As shown, the support mechanism includes several second guide rods 12. Each second guide rod 12 is fixed to the bottom surface of the sliding frame 9, and the bottom end of each second guide rod 12 extends to the bottom of the base plate 8. Each second guide rod 12 is fitted with a first compression spring 13, and the two ends of the first compression spring 13 are fixed to the bottom surface of the sliding frame 9 and the upper surface of the base plate 8, respectively. With the above structure, the first compression spring 13 can support the sliding frame 9 and automatically reset. When the sliding frame 9 moves downward, the sliding of the second guide rod 12 on the base plate 8 ensures the stability of the sliding frame 9 during lifting and lowering, effectively preventing the sliding frame 9 from deviating. When the downward pressure on the sliding frame 9 is released, the elastic force of the first compression spring 13 will automatically push the sliding frame 9 upward.

[0028] like Figure 4 As shown, the displacement mechanism includes a bidirectional lead screw 16, which is rotatably connected to the inner wall of the sliding frame 9. One end of the bidirectional lead screw 16 passes through the sliding frame 9 and is fixedly connected to a handle. One end of each of the two push plates 14 is slidably disposed within the sliding frame 9 and threaded onto the bidirectional lead screw 16. With the above structure, the distance between the two push plates 14 can be adjusted to accommodate welding torches 4 of different sizes, thus providing better support and positioning for the welding torch 4. In specific operation, simply rotating the handle at one end of the bidirectional lead screw 16 controls the two push plates 14 to move closer or further apart within the sliding frame 9, making operation more convenient.

[0029] like Figures 1 to 3 As shown, the calibration mechanism includes a bracket 3, which is fixed to the bottom of the fixing member 1. A calibration rod 5 is installed through the bracket 3. A second compression spring 6 is fixed to the bottom end of the calibration rod 5, and the second compression spring 6 is sleeved on the surface of the bracket 3. The top end of the second compression spring 6 is fixed to the bracket 3. With the above structure, when the welding torch 4 moves downward and is fixed with the robot, the bottom end of the welding torch 4 will be aligned with the calibration rod 5. Then, the operator pushes the bottom end of the calibration rod 5 to move it, so that the top end of the calibration rod 5 can be inserted into the bottom end of the welding torch 4 to observe whether it is calibrated.

[0030] like Figures 1 to 3 As shown, two calibration wheels 2 are rotatably connected to the side of the fixing part 1, and the barrel of the welding gun 4 slides between the two calibration wheels 2. With the setting of the calibration wheels 2, the barrel of the welding gun 4 can be limited, thereby ensuring the calibration effect of the welding gun 4 and facilitating subsequent calibration.

[0031] like Figure 6As shown, each movable frame 10 has a mounting groove 20, and a screw 19 is rotatably connected to the inner wall of each mounting groove 20. One end of the screw 19 passes through the movable frame 10 and is fixedly connected to a handle. The bottom ends of the two clamping plates 11 are slidably disposed in the mounting groove 20 and threaded onto the screw 19. With the above structure, the position of the clamping plate 11 on the movable frame 10 can be easily adjusted, so that the clamping position can be adjusted according to the welding torch 4 of different sizes. In specific operation, the displacement of the clamping plate 11 in the mounting groove 20 can be controlled by simply turning the handle at one end of the screw 19.

[0032] like Figure 4 and Figure 6 As shown, two first guide rods 18 are fixedly connected to one side of each of the two top plates 7. Two guide grooves 17 are opened on each of the two moving frames 10, and the first guide rods 18 are inserted into the corresponding guide grooves 17. With the above structure, the moving frame 10 can slide horizontally and stably on the top plate 7. When the push plate 14 adjusts its position in the horizontal direction, it will also drive the moving frame 10 to slide on the two first guide rods 18, thereby improving the practicality of the device.

[0033] The working principle and usage process of this utility model are as follows: When the welding torch 4 is first calibrated, the robotic arm controls the welding torch 4 to pass through two moving frames 10, and supports the welding torch 4's welding handle on two push plates 14. The robotic arm continuously lowers the welding torch 4, causing the welding handle to press downwards against the two push plates 14, and simultaneously moving the sliding frame 9 downwards. The downward movement of the push plates 14 pulls the moving frames 10 through the connecting rod 15, causing the two clamping plates 11 to move closer together, clamping and fixing the welding torch 4's welding handle. Finally, personnel push the torch for calibration. The rod 5 moves upward, so that the correction rod 5 can correct the welding nozzle of the welding gun 4. During this process, the two correction wheels 2 can also correct the welding gun 4. When the distance between the two push plates 14 needs to be adjusted, simply rotate the handle at one end of the bidirectional lead screw 16 to drive the bidirectional lead screw 16 to rotate, so that the two push plates 14 move closer or further apart within the sliding frame 9. When the push plates 14 are moving, they will also pull the moving frame 10 to slide on the two first guide rods 18. Therefore, it will not affect the subsequent clamping and fixing of the welding gun 4, effectively improving the practicality of the device.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A robotic welding torch calibration device, comprising a fixing member (1) and a welding torch (4), characterized in that: The top of the fixing member (1) is fixedly connected to two top plates (7). The adjacent surfaces of the two top plates (7) are horizontally slidably provided with moving frames (10). Each moving frame (10) is movably connected with a card plate (11). The side of the fixing member (1) is fixedly connected to a bottom plate (8). The bottom plate (8) is provided with a sliding frame (9) and a support mechanism for guiding and resetting the sliding frame (9). The sliding frame (9) is provided with two opposing push plates (14) and a displacement mechanism for adjusting the distance between the two push plates (14). The welding torch (4) is located between the two card plates (11) and supported on the two push plates (14). The sides of the two push plates (14) are hinged with connecting rods (15). The top ends of the two connecting rods (15) are respectively hinged to the bottom surfaces of the two moving frames (10). The bottom of the fixing member (1) is provided with a correction mechanism for correcting the welding nozzle.

2. The robotic welding torch calibration device according to claim 1, characterized in that, The support mechanism includes several second guide rods (12), each of which is fixed to the bottom surface of the sliding frame (9). The bottom end of each second guide rod (12) extends to the bottom of the base plate (8). A first compression spring (13) is sleeved on the surface of each second guide rod (12), and the two ends of the first compression spring (13) are fixed to the bottom surface of the sliding frame (9) and the upper surface of the base plate (8), respectively.

3. The robotic welding torch calibration device according to claim 1, characterized in that, The displacement mechanism includes a bidirectional lead screw (16), which is rotatably connected to the inner wall of the sliding frame (9). One end of the bidirectional lead screw (16) passes through the sliding frame (9) and is fixedly connected to a throttle. One end of each of the two push plates (14) is slidably disposed in the sliding frame (9) and threadedly sleeved onto the bidirectional lead screw (16).

4. The robotic welding torch calibration device according to claim 1, characterized in that, The correction mechanism includes a bracket (3), which is fixed to the bottom of the fixing member (1). A correction rod (5) is provided through the bracket (3). A second compression spring (6) is fixed to the bottom end of the correction rod (5), and the second compression spring (6) is sleeved on the surface of the bracket (3). The top end of the second compression spring (6) is fixed to the bracket (3).

5. The robotic welding torch calibration device according to claim 1, characterized in that, The side of the fixing member (1) is rotatably connected to two correction wheels (2), and the barrel of the welding gun (4) slides between the two correction wheels (2).

6. The robotic welding torch calibration device according to claim 1, characterized in that, Each of the movable frames (10) is provided with an installation groove (20), and each of the installation grooves (20) is rotatably connected to a screw (19). One end of the screw (19) passes through the movable frame (10) and is fixedly connected to a handle. The bottom ends of the two clamping plates (11) are slidably disposed in the installation groove (20) and threaded onto the screw (19).

7. The robotic welding torch calibration device according to claim 1, characterized in that, Two first guide rods (18) are fixedly connected to one side of each of the two top plates (7), and two guide grooves (17) are opened on each of the two movable frames (10), and the first guide rods (18) are inserted into the corresponding guide grooves (17).

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