Small metal tool welding industrial robot capable of widening application range

Abstract

The invention belongs to the technical field of industrial robots, and discloses a small metal tool welding industrial robot capable of widening the application range, the small metal tool welding industrial robot comprises a support and a welding gun, an air cylinder is fixedly mounted on the top side of the support, a fixing seat is fixedly mounted at the output end of the air cylinder, and the welding gun is fixedly mounted on the outer wall of one side of the fixing seat; an upper base plate is arranged on the bottom side of the welding gun, the bottom of the upper base plate is connected with a lower base plate through fixing bolts, and the upper base plate and the lower base plate are connected with two sets of transverse clamping bases and longitudinal clamping bases in a sliding mode respectively. The transmission assembly is used for controlling rotation of the two-way threaded guide rod, the second sliding bases on the threaded sections with the different rotating directions on the two sides can be driven to move in the opposite direction or the opposite direction, the transverse clamping bases and the longitudinal clamping bases are driven to move at the same time when the second sliding bases move, and the two sets of transverse clamping bases or longitudinal clamping bases are controlled to move in the opposite direction or the opposite direction at the same time; metal tools of different shapes and specifications can be clamped or released, and the application range is effectively widened.

Description

Technical Field

[0001] This invention relates to the field of industrial robot technology, and in particular to a small metal tool welding industrial robot with improved applicability. Background Technology

[0002] Welding is a critical process in the manufacturing of small metal tools, and its quality and efficiency directly affect the overall performance and manufacturing cost of the product. With the improvement of industrial automation, industrial robots are gradually replacing manual labor and are widely used in welding, handling, and assembly processes to improve operational accuracy, stability, and production efficiency. Especially in the welding field, robotic arms can achieve complex trajectory movements and high repeatability, significantly improving welding quality.

[0003] However, existing welding robots still have certain limitations in practical applications due to the diverse and small-batch production characteristics of small metal tools. Because metal tools have complex shapes and varying sizes, traditional clamping devices often require customized tooling for specific products, resulting in poor equipment versatility, long changeover and adjustment times, and high fixture management costs. Furthermore, during the welding process, the fixed workpiece posture and limited accessibility of the welding torch often make it difficult to perform high-quality welding on certain hidden or inclined welds, frequently requiring interruptions, re-clamping, or manual intervention, severely impacting welding efficiency and automation levels.

[0004] Therefore, there is an urgent need to develop a small metal tool welding industrial robot with high adaptability and the ability to quickly adjust the clamping range and workpiece posture in order to meet the production needs of multiple varieties and small batches, and improve the overall applicability and production efficiency of welding automation equipment. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems and to propose a small metal tool welding industrial robot with improved applicability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A small metal tool welding industrial robot with improved applicability includes a support and a welding torch. A cylinder is fixedly installed on the top side of the support, and a fixed base is fixedly installed on the output end of the cylinder. The welding torch is fixedly installed on the outer wall of one side of the fixed base. An upper base plate is provided on the bottom side of the welding torch. A lower base plate is connected to the bottom of the upper base plate by fixing bolts. Two sets of horizontal clamping seats and vertical clamping seats are slidably connected on the upper base plate and the lower base plate, respectively. The two sets of horizontal clamping seats and vertical clamping seats are arranged in a ring and evenly staggered. Four sets of guide plates are symmetrically installed on the outer walls of both sides of the upper base plate, and the two sets of vertical clamping seats are slidably disposed between the guide plates.

[0007] Preferably, a transmission assembly is installed on the inner wall of both the upper and lower chassis. The transmission assembly includes a bidirectional threaded guide rod, a first bearing, a first motor, a transmission gear, and a second slide block. Two sets of sliding grooves are symmetrically opened on the top surface of both the upper and lower chassis. The second slide block is slidably connected in the sliding groove. Two sets of first bearings are installed on the outer wall of the bidirectional threaded guide rod. The two sets of first bearings are embedded in the inner wall of the upper and lower chassis. The two ends of the bidirectional threaded guide rod are provided with threaded sections with opposite directions of rotation, which respectively thread through the second slide block in the two sets of sliding grooves and are rotatably connected to the inner wall of the upper and lower chassis through bushings.

[0008] Preferably, both the upper and lower chassis have mounting grooves at their bottoms. The first motor is fixedly mounted on the inner wall of the mounting groove, and the output end of the first motor is fixedly connected to the center of the transmission gear shaft. The outer wall of the middle part of the bidirectional threaded guide rod has several sets of tooth grooves evenly provided. The transmission gear is meshed with one side of the tooth grooves. The outer wall of the mounting groove is fitted with a base plate by bolts.

[0009] Preferably, a support arm is welded to the outer wall of the lower chassis, and one end of the support arm passes through two sets of supports. A first slide is fixedly installed between the two sets of supports. The first slide is slidably connected to the outer wall of the bracket through a lifting assembly. Bearing grooves are opened on the inner walls of both sets of supports. A third bearing is embedded in the inner wall of the bearing groove. The third bearing is fixedly installed on the outer end of the support arm.

[0010] Preferably, the lifting assembly includes a side frame, a second motor, and a guide rod. The side frame is fixedly installed on the outer wall of one side of the bracket, the second motor is fixedly installed on the top of the side frame, and the output end of the second motor is fixedly connected to the top of the guide rod. The guide rod is threaded through the first slide block and its bottom end is rotatably connected to the inner wall of the bracket. A guide groove is provided on the outer wall of one side of the bracket, and the first slide block is slidably disposed in the guide groove.

[0011] Preferably, a driven wheel is fixedly installed at the outer end of the support arm located between the two sets of supports, and a transmission assembly is provided on the outer side of the driven wheel.

[0012] Preferably, the transmission assembly includes a servo motor, a drive wheel, a second bearing, and a transmission belt. The servo motor is fixedly installed on the outer wall of the support, and the output end of the servo motor is fixedly connected to the center of the gear shaft on one side of the drive wheel. The other side of the drive wheel is rotatably connected to the support through the second bearing. The transmission belt is sleeved on the outer ends of the drive wheel and the driven wheel, and the inner ring of the transmission belt is provided with transmission teeth that mesh with the drive wheel and the driven wheel.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The transmission component is designed to control the rotation of the bidirectional threaded guide rod, which can drive the second slides on the threaded sections with different helix directions on both sides to move in opposite directions. While the second slides are moving, the horizontal clamp and the vertical clamp are moved simultaneously. This controls the two sets of horizontal or vertical clamps to move in opposite directions at the same time, so as to clamp or release metal tools of different shapes and specifications, effectively improving the scope of application.

[0014] 2. During welding, the extension and retraction of the cylinder drives the fixed base and welding torch to move, thereby adjusting the welding position. The lifting component can control the lifting and moving of the support arm and the metal tool clamped on one side at the same time, in conjunction with the cylinder, to assist the welding torch in welding different positions. 3. The third bearing is used to support the stable rotation of the support arm. The rotation of the servo motor drives the drive wheel to rotate. Under the transmission belt, the rotation of the drive wheel drives the driven wheel on one side to rotate synchronously, thereby achieving the purpose of driving the support arm to rotate. This can drive the support arm and the metal tool on one side to rotate, so as to adjust the welding angle of the welding gun and weld at different angles of the metal tool. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of a small metal tool welding industrial robot proposed in this invention to improve its applicability. Figure 2 This is a side view of a small metal tool welding industrial robot proposed in this invention to improve its applicability. Figure 3 This is a cross-sectional structural schematic diagram of a small metal tool welding industrial robot proposed in this invention to improve its applicability. Figure 4 This is an enlarged schematic diagram of structure A of a small metal tool welding industrial robot proposed in this invention to improve its applicability. Figure 5 This is a three-dimensional structural diagram of a small metal tool welding industrial robot proposed in this invention to improve its applicability.

[0016] In the diagram: 1. Bracket; 2. Side frame; 3. Lower chassis; 4. Upper chassis; 5. Horizontal clamp; 6. Vertical clamp; 7. Slide groove; 8. Bidirectional threaded guide rod; 9. First bearing; 10. First motor; 12. Guide plate; 13. Fixing bolt; 14. Welding torch; 15. Fixing seat; 16. Cylinder; 17. Second motor; 18. Guide rod; 19. First slide block; 20. Transmission gear; 21. Support; 22. Servo motor; 23. Drive wheel; 24. Second bearing; 25. Third bearing; 26. Transmission belt; 27. Driven wheel; 28. Support arm; 29. ​​Guide groove; 30. Gear groove; 31. Base plate; 32. Second slide block. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-5 One embodiment of the present invention provides a small metal tool welding industrial robot with improved applicability, comprising a support 1 and a welding torch 14. A cylinder 16 is fixedly mounted on the top side of the support 1, and a fixed base 15 is fixedly mounted on the output end of the cylinder 16. The welding torch 14 is fixedly mounted on the outer wall of one side of the fixed base 15. An upper base 4 is provided on the bottom side of the welding torch 14. A lower base 3 is connected to the bottom of the upper base 4 by fixing bolts 13. Two sets of horizontal clamping seats 5 and vertical clamping seats 6 are slidably connected to the upper base 4 and the lower base 3, respectively. The longitudinal clamping seats 6 are arranged in a uniform and staggered ring. Four sets of guide plates 12 are symmetrically installed on the outer walls of both sides of the upper base 4. The two sets of longitudinal clamping seats 6 are slidably arranged between the guide plates 12. During the production of metal tools, some parts are initially fixed by spot welding, and then full welding is required. The horizontal clamping seats 5 and the longitudinal clamping seats 6 are used to clamp and fix the metal tools between them so that the welding gun 14 can weld. During welding, the extension and retraction of the cylinder 16 drives the fixed seat 15 and the welding gun 14 to move to adjust the welding position.

[0019] Specifically, transmission components are installed on the inner walls of both the upper chassis 4 and the lower chassis 3. The transmission components include a bidirectional threaded guide rod 8, a first bearing 9, a first motor 10, a transmission gear 20, and a second slide block 32. Two sets of sliding grooves 7 are symmetrically opened on the top surfaces of both the upper chassis 4 and the lower chassis 3. The second slide block 32 is slidably connected in the sliding grooves 7. Two sets of first bearings 9 are installed on the outer wall of the bidirectional threaded guide rod 8. The two sets of first bearings 9 are embedded in the inner walls of the upper chassis 4 and the lower chassis 3. Two sets of threaded segments with opposite directions are provided at the outer end of the bidirectional threaded guide rod 8. The two ends of the bidirectional threaded guide rod 8 are threaded through the second slide block 32 located in the two sets of sliding grooves 7 and are rotatably connected to the inner walls of the upper chassis 4 and the lower chassis 3 through bushings. The transmission components are used to control the two sets of horizontal clamping seats 5 or vertical clamping seats 6 to move in opposite directions at the same time in order to clamp or release metal tools. The first bearings 9 are used to support the stable rotation of the bidirectional threaded guide rod 8.

[0020] Specifically, both the upper chassis 4 and the lower chassis 3 have mounting slots at their bottoms. The first motor 10 is fixedly mounted on the inner wall of the mounting slot, and the output end of the first motor 10 is fixedly connected to the center of the gear shaft of the transmission gear 20. Several sets of tooth grooves 30 are evenly provided on the outer wall of the middle part of the bidirectional threaded guide rod 8. The transmission gear 20 is meshed with one side of the tooth groove 30. The base plate 31 is bolted to the outer wall of the mounting slot. When it is necessary to control the clamping or releasing of metal tools between the horizontal clamping seat 5 and the vertical clamping seat 6, the first motor 10 is started. The rotation of the first motor 10 drives the transmission gear 20 to rotate. The rotation of the transmission gear 20 drives the bidirectional threaded guide rod 8 to rotate. The rotation of the bidirectional threaded guide rod 8 can drive the second slides 32 on the threaded sections with different helical directions on both sides to move in opposite directions.

[0021] Specifically, a support arm 28 is welded to the outer wall of the lower chassis 3. One end of the support arm 28 passes through two sets of supports 21. A first slide 19 is fixedly installed between the two sets of supports 21. The first slide 19 is slidably connected to the outer wall of the bracket 1 through a lifting assembly. Bearing grooves are opened on the inner walls of both sets of supports 21. A third bearing 25 is embedded in the inner wall of the bearing groove. The third bearing 25 is fixedly installed on the outer end of the support arm 28. The lifting assembly can control the support arm 28 and the metal tool clamped on one side to move up and down simultaneously, so as to cooperate with the cylinder 16 to assist the welding torch 14 in welding different positions. The third bearing 25 is used to support the stable rotation of the support arm 28.

[0022] Specifically, the lifting assembly includes a side frame 2, a second motor 17, and a guide rod 18. The side frame 2 is fixedly installed on the outer wall of one side of the bracket 1. The second motor 17 is fixedly installed on the top of the side frame 2, and the output end of the second motor 17 is fixedly connected to the top of the guide rod 18. The guide rod 18 is threaded through the first slide block 19 and its bottom end is rotatably connected to the inner wall of the bracket 1. A guide groove 29 is provided on the outer wall of one side of the bracket 1. The first slide block 19 is slidably disposed in the guide groove 29. When it is necessary to adjust the height of the clamped metal tool, the second motor 17 is started. The rotation of the second motor 17 drives the guide rod 18 to rotate. The rotating guide rod 18 drives the threaded first slide block 19 to rise and fall between the guide groove 29 and the outer end of the guide rod 18.

[0023] Specifically, a driven wheel 27 is fixedly installed on the outer end of the support arm 28 between the two sets of supports 21. A transmission component is provided on the outer side of the driven wheel 27. The transmission component can provide power to drive the driven wheel 27 to rotate, thereby driving the support arm 28 and the metal tool on one side to rotate, so as to adjust the welding angle of the welding torch 14.

[0024] Specifically, the transmission assembly includes a servo motor 22, a drive wheel 23, a second bearing 24, and a transmission belt 26. The servo motor 22 is fixedly installed on the outer wall of the support 21, and the output end of the servo motor 22 is fixedly connected to the center of the gear shaft on one side of the drive wheel 23. The other side of the drive wheel 23 is rotatably connected to the support 21 through the second bearing 24. The transmission belt 26 is sleeved on the outer ends of the drive wheel 23 and the driven wheel 27, and the inner ring of the transmission belt 26 is provided with transmission teeth that mesh with the drive wheel 23 and the driven wheel 27. When it is necessary to drive the support arm 28 to rotate, the servo motor 22 is started. The rotation of the servo motor 22 drives the drive wheel 23 to rotate. Under the transmission of the transmission belt 26, the drive wheel 23 rotates and drives the driven wheel 27 on one side to rotate synchronously, thereby achieving the purpose of driving the support arm 28 to rotate.

[0025] Working principle: When it is necessary to control the clamping or release of the metal tool between the horizontal clamping seat 5 and the vertical clamping seat 6, the first motor 10 is started. The rotation of the first motor 10 drives the transmission gear 20 to rotate, which in turn drives the bidirectional threaded guide rod 8 to rotate. The rotation of the bidirectional threaded guide rod 8 can drive the second slides 32 on the threaded sections with different helical directions on both sides to move in opposite directions. While the second slides 32 are moving, the horizontal clamping seat 5 and the vertical clamping seat 6 are moved simultaneously. The horizontal clamping seat 5 and the vertical clamping seat 6 are used to clamp and fix the metal tool between them so that the welding torch 14 can weld. During welding, the extension and retraction of the cylinder 16 drives the fixed seat 15 and the welding torch 14 to move to adjust the welding position. The lifting assembly can control the simultaneous lifting of the support arm 28 and the metal tool clamped on one side. The lowering and moving mechanism works in conjunction with cylinder 16 to assist welding torch 14 in welding different positions. The third bearing 25 supports the stable rotation of the support arm 28. When the height of the clamped metal tool needs to be adjusted, the second motor 17 is activated. The rotation of the second motor 17 drives the guide rod 18 to rotate. The rotating guide rod 18 drives the threaded first slide 19 to rise and fall between the guide groove 29 and the outer end of the guide rod 18. When the support arm 28 needs to be driven to rotate, the servo motor 22 is activated. The rotation of the servo motor 22 drives the drive wheel 23 to rotate. Under the transmission of the transmission belt 26, the drive wheel 23 rotates and drives the driven wheel 27 on one side to rotate synchronously, thereby achieving the purpose of driving the support arm 28 to rotate. This allows the support arm 28 and the metal tool on one side to rotate, thereby adjusting the welding angle of the welding torch 14.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A small metal tool welding industrial robot with improved applicability, comprising a support (1) and a welding torch (14), characterized in that, A cylinder (16) is fixedly installed on the top side of the bracket (1), and a fixed seat (15) is fixedly installed at the output end of the cylinder (16). The welding torch (14) is fixedly installed on the outer wall of one side of the fixed seat (15). An upper base plate (4) is provided on the bottom side of the welding torch (14). A lower base plate (3) is connected to the bottom of the upper base plate (4) by a fixing bolt (13). Two sets of horizontal clamping seats (5) and vertical clamping seats (6) are slidably connected on the upper base plate (4) and the lower base plate (3), respectively. The two sets of horizontal clamping seats (5) and vertical clamping seats (6) are arranged in a ring and evenly staggered. Four sets of guide plates (12) are symmetrically installed on the outer walls of both sides of the upper base plate (4). The two sets of vertical clamping seats (6) are slidably arranged between the guide plates (12).

2. The small metal tool welding industrial robot with improved applicability according to claim 1, characterized in that, The upper chassis (4) and the lower chassis (3) are both equipped with transmission components. The transmission components include a bidirectional threaded guide rod (8), a first bearing (9), a first motor (10), a transmission gear (20), and a second slide block (32). The top surfaces of the upper chassis (4) and the lower chassis (3) are symmetrically provided with two sets of sliding grooves (7). The second slide block (32) is slidably connected in the sliding groove (7). The outer wall of the bidirectional threaded guide rod (8) is equipped with two sets of first bearings (9). The two sets of first bearings (9) are embedded in the inner walls of the upper chassis (4) and the lower chassis (3). The outer end of the bidirectional threaded guide rod (8) is provided with two sets of threaded segments with opposite directions of rotation. The two ends of the bidirectional threaded guide rod (8) are threaded through the second slide block (32) located in the two sets of sliding grooves (7) and are rotatably connected to the inner walls of the upper chassis (4) and the lower chassis (3) through bushings.

3. The small metal tool welding industrial robot with improved applicability according to claim 2, characterized in that, The upper chassis (4) and the lower chassis (3) are both provided with mounting grooves at their bottoms. The first motor (10) is fixedly installed on the inner wall of the mounting groove, and the output end of the first motor (10) is fixedly connected to the center of the gear shaft of the transmission gear (20). The outer wall of the middle part of the bidirectional threaded guide rod (8) is provided with several sets of tooth grooves (30). The transmission gear (20) is meshed with one side of the tooth groove (30). The outer wall of the mounting groove is fitted with a base plate (31) by bolts.

4. The small metal tool welding industrial robot with improved applicability according to claim 1, characterized in that, The lower chassis (3) has a support arm (28) welded to its outer wall. One end of the support arm (28) passes through two sets of supports (21). A first slide (19) is fixedly installed between the two sets of supports (21). The first slide (19) is slidably connected to the outer wall of the bracket (1) through a lifting assembly. Bearing grooves are provided on the inner walls of both sets of supports (21). A third bearing (25) is embedded in the inner wall of the bearing groove. The third bearing (25) is fixedly installed on the outer end of the support arm (28).

5. A small metal tool welding industrial robot with improved applicability according to claim 4, characterized in that, The lifting assembly includes a side frame (2), a second motor (17), and a guide rod (18). The side frame (2) is fixedly installed on the outer wall of one side of the bracket (1). The second motor (17) is fixedly installed on the top of the side frame (2), and the output end of the second motor (17) is fixedly connected to the top of the guide rod (18). The guide rod (18) is threaded through the first slide block (19) and its bottom end is rotatably connected to the inner wall of the bracket (1). A guide groove (29) is provided on the outer wall of one side of the bracket (1), and the first slide block (19) is slidably disposed in the guide groove (29).

6. A small metal tool welding industrial robot with improved applicability according to claim 4, characterized in that, The arm (28) has a driven wheel (27) fixedly installed at its outer end between the two sets of supports (21), and a transmission assembly is provided on the outer side of the driven wheel (27).

7. A small metal tool welding industrial robot with improved applicability according to claim 6, characterized in that, The transmission assembly includes a servo motor (22), a drive wheel (23), a second bearing (24), and a transmission belt (26). The servo motor (22) is fixedly installed on the outer wall of the support (21), and the output end of the servo motor (22) is fixedly connected to the center of the gear shaft on one side of the drive wheel (23). The other side of the drive wheel (23) is rotatably connected to the support (21) through the second bearing (24). The transmission belt (26) is sleeved on the outer ends of the drive wheel (23) and the driven wheel (27), and the inner ring of the transmission belt (26) is provided with transmission teeth that mesh with the drive wheel (23) and the driven wheel (27).

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