Positioning device for welding robot

Abstract

The utility model relates to the technical field of welding, and discloses a positioning device for a welding robot, which comprises a welding head, the front side of the welding head is fixedly connected with a support plate, the inside of the support plate is rotatably connected with a rotating rod, the rear side of the rotating rod is fixedly connected with a hexagonal block, the other end of the rotating rod is fixedly connected with a circular truncated cone, and the circular truncated cone is fixedly connected with the welding head. A plurality of sliding columns are slidably connected to the interior of the circular truncated cone, sliding rails are fixedly connected to the rear sides of the sliding columns, clamping blocks are fixedly connected to the front sides of the sliding rails, fixing blocks are installed on the inner sides of the clamping blocks, sliding blocks are slidably connected to the rear sides of the sliding rails, and ratchet wheels are fixedly connected to the outer sides of rotating rods. The rotating hexagonal block drives the circular truncated cone to rotate, the clamping blocks are driven by the sliding column to be tightened or loosened synchronously, self-locking fixing is achieved through the ratchet wheel and pawl mechanism, installation of the welding robot positioner is simplified, efficiency is improved, and operation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a positioning device for a welding robot. Background Technology

[0002] Positioning devices for welding robots are key auxiliary equipment in the welding process, significantly improving welding accuracy and quality. They can quickly and accurately determine the workpiece position, ensuring the robot's welding torch is precisely aligned with the welding area, reducing human error. Whether dealing with complex-shaped workpieces or large-scale welding production, positioning devices guarantee the consistency and stability of the welding position, thereby improving production efficiency and reducing costs, and are widely used in industrial manufacturing.

[0003] The positioning device in a welding robot primarily utilizes sensors to perceive the position and orientation of the workpiece. For example, a laser sensor emits a laser beam and measures the distance and shape of the workpiece surface by receiving the reflected light, transmitting the data to the control system. The control system analyzes and processes this data to calculate the precise position and orientation of the workpiece, and then controls the robot's robotic arm to move, ensuring the welding head is accurately positioned for welding, thus achieving precise welding.

[0004] In the existing technology, when the positioning device of some welding robots needs to be replaced or repaired, the installation and disassembly process is complicated, which prolongs the maintenance time, increases the downtime of equipment maintenance, affects the continuity of production, and requires additional manpower, increasing labor costs. Therefore, a positioning device for welding robots is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a positioning device for welding robots, which aims to improve the problems of complex installation and disassembly processes, extended maintenance time, increased equipment downtime for maintenance, impact on production continuity, and the need for additional manpower, thus increasing labor costs in the prior art.

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

[0007] A positioning device for a welding robot includes a welding head. A support plate is fixedly connected to the front side of the welding head. A rotating rod is rotatably connected inside the support plate. A hexagonal block is fixedly connected to the rear side of the rotating rod. A frustum is fixedly connected to the other end of the rotating rod. Multiple sliding columns are slidably connected inside the frustum. A slide rail is fixedly connected to the rear side of each of the multiple sliding columns. A clamping block is fixedly connected to the front side of the slide rail. A fixing block is installed inside the clamping block. A slider is slidably connected to the rear side of the slide rail. A ratchet is fixedly connected to the outer side of the rotating rod. An L-shaped rod is rotatably connected inside the support plate. A pawl is fixedly connected to the front side of the L-shaped rod. A disassembly assembly for quick disassembly is provided on the front side of the fixing block.

[0008] As a further description of the above technical solution:

[0009] The disassembly assembly includes a locator, the rear of which is fixedly connected to the front of the fixing block. A protective cover is installed on the left side of the locator. Multiple levers are slidably connected inside the protective cover. A support is fixedly connected to the right side of each lever. A support column is slidably connected to the outer side of the support. Multiple connecting rods are rotatably connected to the outer side of the support. A U-shaped rod is slidably connected to the other end of each connecting rod. A support plate is fixedly connected to the far side of the U-shaped rod. A connecting block is fixedly connected to the near side of the support plate. A transmission rod is rotatably connected inside the connecting block. Multiple spring blocks are fixedly connected inside the protective cover.

[0010] As a further description of the above technical solution:

[0011] The rear side of the slider is fixedly connected to the inside of the support plate, and the outer side of the ratchet contacts the outer side of the pawl;

[0012] As a further description of the above technical solution:

[0013] The interior of the frustum has multiple grooves, and the outer sides of the multiple sliding columns are slidably connected to the interior of the multiple grooves;

[0014] As a further description of the above technical solution:

[0015] The outer side of the connecting rod is slidably connected to the adjacent side of the support plate, and the rear side of the connecting rod is rotatably connected to the front side of the transmission rod.

[0016] As a further description of the above technical solution:

[0017] The far side of the connecting block is fixedly connected to the near side of the support plate, and the outer side of the support column is fixedly connected to the right side of the protective cover.

[0018] As a further description of the above technical solution:

[0019] The other end of the transmission rod is rotatably connected to the outside of the support column, and the left side of the spring block is in contact with the right side of the lever;

[0020] As a further description of the above technical solution:

[0021] The outer side of the support is slidably connected to the inside of the protective cover, and the opposite side of the support plate is in contact with the inside of the locator.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, rotating the hexagonal block drives the rotating rod and the truncated cone to rotate. The sliding column inside the truncated cone converts the circular motion into the linear motion of the slide rail, driving multiple clamping blocks to tighten or release synchronously. The ratchet rotates with the rotating rod, and when it stops, the pawl engages with the inter-tooth fixing component, achieving rapid positioning and installation. This simplifies the installation process of the welding robot positioner, improves efficiency, and reduces operational difficulty.

[0024] 2. In this utility model, the support slides by moving the lever, and the transmission rod and the support plate are simultaneously tensioned or contracted by the connecting rod, so as to realize the quick fixing and disassembly of the positioner. After the lever is released, the spring block resets to return the lever to its original position, ensuring the stability of the component. This design facilitates the replacement of the positioner, reduces downtime, and adapts to diverse production needs. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a positioning device for a welding robot proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a hexagonal block for a positioning device for a welding robot proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a frustum for a positioning device for a welding robot proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the positioner of the positioning device for a welding robot proposed in this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Welding head; 2. Support plate; 3. Hexagonal block; 4. Rotating rod; 5. Frustum; 6. Sliding column; 7. Slide rail; 8. Clamping block; 9. Fixing block; 10. Slider; 11. Ratchet; 12. Pawl; 13. L-shaped rod; 14. Positioner; 15. Protective cover; 16. Lever; 17. Support column; 18. Support; 19. Connecting rod; 20. U-shaped rod; 21. Transmission rod; 22. Connecting block; 23. Support plate; 24. Spring block. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a positioning device for a welding robot, including a welding head 1. The welding head 1, as the core execution component, undertakes the actual welding work, melting the welding material and connecting the workpieces together. A support plate 2 is fixedly connected to the front side of the welding head 1. The support plate 2 plays a crucial role in supporting and connecting other components, providing an installation base for the fixed components, ensuring smooth rotation and other operations within it, while maintaining the structural integrity of the entire positioning device. A rotating rod 4 is rotatably connected inside the support plate 2. The rotating rod 4 is a key component connecting multiple components and transmitting motion. A hexagonal block 3 is fixedly connected to the rear side of the rotating rod 4. The hexagonal block 3 facilitates the operator's rotation of the rotating rod 4, thereby enabling control and adjustment of other related components, providing a convenient manual operation interface.

[0034] The other end of the rotating rod 4 is fixedly connected to a frustum 5, which has multiple sliding channels for sliding columns 6. When the rotating rod 4 drives the frustum 5 to rotate, based on the principle of centrifugal force, the sliding columns 6 will slide outward in the channels inside the frustum 5. When the rotating rod 4 is rotated by the hexagonal block 3, the frustum 5 connected to its other end will rotate synchronously. Multiple sliding columns 6 are slidably connected inside the frustum 5, which slide inside the frustum 5 to transmit power and change the direction of motion. The rear side of each sliding column 6 is fixedly connected to a slide rail 7, and the front side of the slide rail 7 is fixedly connected to a clamping block 8. When the sliding columns 6 slide due to the rotation of the frustum 5, the slide rail 7 slides along a specific direction, thereby pushing the clamping block 8 to move smoothly, ensuring the straightness and stability of the clamping block 8 during the movement, so that the clamping block 8 can accurately clamp and position the workpiece.

[0035] A fixing block 9 is installed on the inner side of the clamping block 8. The fixing block 9 connects the locator 14 to the clamping block 8 and is an important component for the convenient installation of the locator 14. A slider 10 is slidably connected to the rear side of the slide rail 7. The slider 10 slides on the rear side of the slide rail 7, providing auxiliary support and guidance. A ratchet 11 is fixedly connected to the outer side of the rotating rod 4. An L-shaped rod 13 is rotatably connected inside the support plate 2. It rotates inside the support plate 2, and one end of it is fixedly connected to a pawl 12, providing support and a rotation axis for the pawl 12. A pawl 12 is fixedly connected to the front side of the L-shaped rod 13. When the rotating rod 4 rotates, the ratchet 11 rotates accordingly. The pawl 12 can interact with the teeth of the ratchet 11 to prevent the ratchet 11 from rotating in the opposite direction, so that the rotating rod 4 can only rotate in one direction, ensuring that the frustum 5, the sliding column 6 and other components move in the set direction and maintain the stable working state of the positioning device. A disassembly assembly for easy and quick disassembly is provided on the front side of the fixing block 9.

[0036] Reference Figure 1 , Figure 4 , Figure 5 The disassembly assembly includes a locator 14, the rear of which is fixedly connected to the front of the fixing block 9. A protective cover 15 is installed on the left side of the locator 14. The protective cover 15 protects the internal components from external environmental interference and prevents dust and debris from entering and affecting the normal operation of the components. Multiple levers 16 are slidably connected inside the protective cover 15. The levers 16 act as an interaction medium between the operator and the complex internal transmission structure, converting manual operating force into driving force to move the internal components. They are key components for starting the disassembly assembly. Supports 18 are fixedly connected to the right side of each of the multiple levers 16. The supports 18 support and transmit movement. Support columns 17 are slidably connected to the outside of the supports 18. The support columns 17 slide with the outside of the supports 18, providing guidance and support for the movement of the supports 18.

[0037] The support column 17 ensures that the support 18 will not shift or wobble during movement, maintaining the stability and accuracy of the entire disassembly assembly's movement, allowing subsequent components to move along a predetermined trajectory and ensuring the reliability of the disassembly action. Multiple connecting rods 19 are rotatably connected to the outer side of the support 18, and the other end of each connecting rod 19 is slidably connected to a U-shaped rod 20. When the support 18 moves, it drives the connecting rods 19 to rotate around their connection point with the support 18, while the other end of the connecting rods 19 pushes the U-shaped rod 20 to slide in a specific direction. A support plate 23 is fixedly connected to the far side of the U-shaped rod 20, and a connecting block 22 is fixedly connected to the near side of the support plate 23. A transmission rod 21 is rotatably connected inside the connecting block 22, and multiple spring blocks 24 are fixedly connected inside the protective cover 15. The spring blocks 24 provide a reset function for the entire disassembly assembly. After the operator completes the disassembly, the lever 16 is released, and the elastic potential energy stored in the spring block 24 is released, pushing the lever 16, the support 18 and other components back to their initial positions, preparing for the next disassembly operation and ensuring that the disassembly components can work continuously and efficiently.

[0038] Reference Figures 3 to 5 The rear side of the slider 10 is fixedly connected to the inside of the support plate 2 and cooperates with the rear end of the slide rail 7. When the slide rail 7 slides, the slider 10 provides stable support and precise guidance. The outer side of the ratchet 11 contacts the outer side of the pawl 12. When the rotating rod 4 drives the ratchet 11 to rotate, the pawl 12 rotates around the rotation axis of the L-shaped rod 13 under the push of the ratchet 11 teeth, allowing the ratchet 11 to rotate in the forward direction. When the ratchet 11 rotates in the reverse direction, the pawl 12 will engage between the teeth to prevent it from reversing. The inside of the frustum 5 has multiple grooves, and the outer sides of multiple sliding posts 6 are slidably connected to the inside of multiple grooves. Affected by the centrifugal force of the rotation of the frustum 5, the sliding posts 6 slide outward and push the slide rail 7 to translate in a specific direction.

[0039] The conversion from rotation of the frustum 5 to linear push is completed, causing the clamping block 8 to move closer to or away from the workpiece, realizing the clamping or releasing operation of the workpiece. The outer side of the connecting rod 19 is slidably connected to the side of the support plate 23, and the rear side of the connecting rod 19 is rotatably connected to the front side of the transmission rod 21. The far side of the connecting block 22 is fixedly connected to the side of the support plate 23. The outer side of the support column 17 is fixedly connected to the right side of the protective cover 15 and slides with the outer side of the support 18. It provides guidance and support for the movement of the support 18, ensuring that the support 18 remains stable during movement and does not shift or shake. The other end of the transmission rod 21 is rotatably connected to the outer side of the support column 17. The transmission rod 21 and the connecting rod 19 work together to contract or expand, causing the support plate 23 to contract or expand, completing the connection and fixation of the positioner 14 and the protective cover 15. The left side of the spring block 24 contacts the right side of the lever 16. The outer side of the support 18 is slidably connected to the inside of the protective cover 15, and the opposite side of the support plate 23 is in contact with the inside of the positioner 14.

[0040] Working principle: Rotating hexagonal block 3 causes rotating rod 4 to rotate, which in turn causes frustum 5 to rotate. The rotation of frustum 5 causes sliding column 6, which is slidably connected inside it, to move. Sliding column 6 converts the circular motion of frustum 5 into linear motion of slide rail 7, causing slide rail 7 to drive clamping block 8 to slide. At this time, multiple clamping blocks 8 move together to tighten inward or release outward. While rotating rod 4 is rotating, ratchet 11 also rotates with rotating rod 4. When the rotation stops, pawl 12 is engaged between the teeth of ratchet 11, completing the fixation of the component and achieving convenient installation of positioner 14. This improves the installation efficiency of welding robot positioning device, reduces assembly time, speeds up the equipment commissioning process, simplifies the installation process of positioner 14, reduces the labor intensity of operators, and reduces reliance on professional installers.

[0041] Moving lever 16 causes support 18 to slide inside support column 17. The movement of support 18 causes connecting rod 19 and its connected transmission rod 21 to open outward or retract inward, thereby opening or tightening support plate 23 to fix and disassemble positioner 14. At this time, releasing lever 16 will release the elastic force stored in lever 16 due to elastic deformation, causing lever 16 to return to its initial position, thus fixing the entire assembly and enabling quick disassembly of positioner 14, shortening downtime and improving equipment efficiency. In addition, in different production tasks, different types or specifications of positioners 14 need to be replaced. The easy-to-disassemble device makes the replacement process faster and adapts to diverse production needs.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning device for a welding robot, comprising a welding head (1), characterized in that: A support plate (2) is fixedly connected to the front side of the welding head (1). A rotating rod (4) is rotatably connected inside the support plate (2). A hexagonal block (3) is fixedly connected to the rear side of the rotating rod (4). A frustum (5) is fixedly connected to the other end of the rotating rod (4). Multiple sliding columns (6) are slidably connected inside the frustum (5). A slide rail (7) is fixedly connected to the rear side of each of the multiple sliding columns (6). A clamping block (8) is fixedly connected to the front side of the slide rail (7). A fixing block (9) is installed on the inner side of the clamping block (8). A slider (10) is slidably connected to the rear side of the slide rail (7). A ratchet (11) is fixedly connected to the outer side of the rotating rod (4). An L-shaped rod (13) is rotatably connected inside the support plate (2). A pawl (12) is fixedly connected to the front side of the L-shaped rod (13). A disassembly assembly for quick disassembly is provided on the front side of the fixing block (9).

2. A positioning device for a welding robot according to claim 1, characterized in that: The disassembly assembly includes a locator (14), the rear side of which is fixedly connected to the front side of the fixing block (9). A protective cover (15) is installed on the left side of the locator (14). Multiple levers (16) are slidably connected inside the protective cover (15). A support (18) is fixedly connected to the right side of each lever (16). A support column (17) is slidably connected to the outside of the support (18). Multiple connecting rods (19) are rotatably connected to the outside of the support (18). A U-shaped rod (20) is slidably connected to the other end of each connecting rod (19). A support plate (23) is fixedly connected to the far side of the U-shaped rod (20). A connecting block (22) is fixedly connected to the near side of the support plate (23). A transmission rod (21) is rotatably connected inside the connecting block (22). Multiple spring blocks (24) are fixedly connected inside the protective cover (15).

3. A positioning device for a welding robot according to claim 1, characterized in that: The rear side of the slider (10) is fixedly connected to the inside of the bracket plate (2), and the outer side of the ratchet (11) is in contact with the outer side of the pawl (12).

4. The positioning device for a welding robot according to claim 1, characterized in that: The interior of the truncated cone (5) has multiple grooves, and the outer sides of the multiple sliding columns (6) are slidably connected to the interior of the multiple grooves.

5. A positioning device for a welding robot according to claim 2, characterized in that: The outer side of the connecting rod (19) is slidably connected to the side of the support plate (23), and the rear side of the connecting rod (19) is rotatably connected to the front side of the transmission rod (21).

6. A positioning device for a welding robot according to claim 2, characterized in that: The far side of the connecting block (22) is fixedly connected to the near side of the support plate (23), and the outer side of the support column (17) is fixedly connected to the right side of the protective cover (15).

7. A positioning device for a welding robot according to claim 2, characterized in that: The other end of the transmission rod (21) is rotatably connected to the outside of the support column (17), and the left side of the spring block (24) is in contact with the right side of the lever (16).

8. A positioning device for a welding robot according to claim 2, characterized in that: The outer side of the support (18) is slidably connected to the inside of the protective cover (15), and the opposite side of the support plate (23) is in contact with the inside of the locator (14).

Images