Welding rod conveying and replacing mechanism of welding robot

Abstract

The welding rod conveying and replacing mechanism of the welding robot comprises a mechanical arm, the right side of the mechanical arm is fixedly connected with a fixing plate, welding tongs rotationally connected with the fixing plate are inserted into the fixing plate in a penetrating mode, and a rotating mechanism used for driving the welding tongs to rotate is arranged on the fixing plate. A movable ring is fixedly connected to a control button, used for controlling loose clamping of a welding rod, of the electrode holder, a first electric push rod is fixedly connected to the bottom of the electrode holder, and the left end of the first electric push rod is fixedly connected with the movable ring. According to the automatic conveying and replacing device, the effect of automatically conveying and replacing the welding rods on the welding tongs can be achieved, manual replacement is not needed in the process, the replacing efficiency is improved, all the welding rods are conveyed to the welding tongs at a uniform angle, then the situation that the welding rods incline is avoided, and the welding quality and effect of the welding robot are improved.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, and more specifically, to a welding rod feeding and changing mechanism for a welding robot. Background Technology

[0002] The welding rod feeding and changing mechanism of a welding robot is a mechanism used to automatically change the welding rod of the welding robot. The welding robot uses a robotic arm to drive the welding clamp to weld products. The robotic arm can improve the welding quality, but the welding rod clamped by the welding clamp on the robotic arm is a consumable. The welding rod needs to be replaced repeatedly during the welding process, so the welding rod feeding and changing mechanism of the welding robot is required.

[0003] During the operation of a welding robot, the welding rods on the welding clamp are usually replaced manually after they are used up. This low replacement efficiency affects the welding efficiency. Furthermore, manual replacement of welding rods cannot ensure that the welding rod is perpendicular to the welding clamp each time. If the welding rod is tilted, it will affect the welding effect of the welding robot on the product. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a welding rod feeding and changing mechanism for a welding robot to solve the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A welding rod feeding and changing mechanism for a welding robot includes a robotic arm. A fixed plate is fixedly connected to the right side of the robotic arm. A welding clamp, rotatably connected to the fixed plate, is inserted through the fixed plate. A rotating mechanism for driving the welding clamp to rotate is provided on the fixed plate. A moving ring is fixedly connected to a control button on the welding clamp for controlling the release of the welding rod. An electric push rod is fixedly connected to the bottom of the welding clamp. The left end of the electric push rod is fixedly connected to the moving ring. A vertical plate is fixedly connected to the bottom of the fixed plate. A lifting plate is slidably connected to the right side of the vertical plate. A lifting mechanism for driving the lifting plate to rise and fall is provided on the vertical plate. A storage tray is rotatably connected to the top of the lifting plate. A motor is fixedly connected to the bottom of the lifting plate. The output shaft of the motor passes through the lifting plate and is fixedly connected to the storage tray. The storage tray has annularly distributed storage holes. An air bladder is embedded in the inner wall of each storage hole. The air bladder is annularly shaped.

[0007] As a further description of the above technical solution:

[0008] The rotating mechanism includes a gear ring, which is sleeved on and fixedly connected to the welding clamp. A gear that meshes with the gear ring is rotatably connected to the right side of the fixed plate. A second motor is fixedly connected to the left side of the fixed plate. The output shaft of the second motor passes through the fixed plate and is fixedly connected to the gear.

[0009] As a further description of the above technical solution:

[0010] The lifting mechanism includes a vertical groove, which is located on the right side of the vertical plate. An electric push rod 2 is inserted through the inner top wall of the vertical groove and is fixedly connected to it. The bottom end of the electric push rod 2 is fixedly connected to the lifting plate.

[0011] As a further description of the above technical solution:

[0012] A vertical rod is fixedly connected to the top of the storage tray, and a support plate is fixedly connected to the top of the vertical rod. The support plate has support holes that correspond one-to-one with the storage holes.

[0013] As a further description of the above technical solution:

[0014] A protective bucket is fixedly connected between the storage tray and the support tray, and the protective bucket is located at the top edge of the support tray.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This solution enables automatic feeding and replacement of welding electrodes in the welding clamp without manual intervention, thus improving replacement efficiency. Furthermore, each welding electrode is fed to the welding clamp at a uniform angle, preventing electrode tilting and improving the quality and effect of welding robot welding. Attached Figure Description

[0017] Figure 1 One of the perspective views of this utility model;

[0018] Figure 2 This is a second perspective view of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged view of part A in the middle.

[0021] Explanation of the labels in the diagram:

[0022] 1. Robotic arm; 2. Fixed plate; 3. Welding clamp; 4. Rotating mechanism; 401. Gear ring; 402. Gear; 403. Motor II; 5. Moving ring; 6. Electric push rod I; 7. Vertical plate; 8. Lifting plate; 9. Lifting mechanism; 901. Vertical groove; 902. Electric push rod II; 10. Storage tray; 11. Motor I; 12. Storage hole; 13. Airbag; 14. Vertical rod; 15. Support plate; 16. Support hole; 17. Protective barrel. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4 In this utility model: a welding rod feeding and changing mechanism for a welding robot includes a robotic arm 1. A fixed plate 2 is fixedly connected to the right side of the robotic arm 1. A welding clamp 3 is inserted through the fixed plate 2 and rotatably connected thereto. A rotating mechanism 4 for driving the welding clamp 3 to rotate is provided on the fixed plate 2. A moving ring 5 is fixedly connected to the control button of the welding clamp 3 for controlling the release of the welding rod. An electric push rod 6 is fixedly connected to the bottom of the welding clamp 3. The left end of the electric push rod 6 is fixedly connected to the moving ring 5. A vertical plate 7 is fixedly connected to the bottom of the fixed plate 2. A lifting plate 8 is slidably connected to the right side of the vertical plate 7. A lifting mechanism 9 for driving the lifting plate 8 to rise and fall is provided on the vertical plate 7. A storage tray 10 is rotatably connected to the top of the lifting plate 8. A motor 11 is fixedly connected to the bottom of the lifting plate 8. The motor 11 feeds... The output shaft passes through the lifting plate 8 and is fixedly connected to the storage tray 10. The storage tray 10 has annularly distributed storage holes 12. An airbag 13 is embedded in the inner wall of the storage hole 12. The airbag 13 is annular in shape. The rotating mechanism 4 includes a gear ring 401, which is sleeved on the welding clamp 3 and fixedly connected to it. A gear 402 that meshes with the gear ring 401 is rotatably connected to the right side of the fixing plate 2. A second motor 403 is fixedly connected to the left side of the fixing plate 2. The output shaft of the second motor 403 passes through the fixing plate 2 and is fixedly connected to the gear 402. The lifting mechanism 9 includes a vertical groove 901, which is opened on the right side of the vertical plate 7. An electric push rod 902 that is fixedly connected to the inner top wall of the vertical groove 901 is inserted therethrough. The bottom end of the electric push rod 902 is fixedly connected to the lifting plate 8.

[0025] In this invention, during use, the robotic arm 1 controls the movement of the fixed plate 2, which in turn moves the welding clamp 3. Welding rods are connected to the welding clamp 3, which then controls the welding of the product. When the welding rods are used up, the user activates the electric push rod 6. The electric push rod 6 moves the control button on the welding clamp 3 via the moving ring 5. At this time, the clamping mechanism on the right end of the welding clamp 3 loses its grip on the welding rod, and the used welding rod falls out, completing the unloading of the used welding rod. Next, the user activates the second motor 403, which drives the gear 402 to rotate. The gear 402 meshes with the gear ring 401, so the second motor 403 drives the welding clamp 3 to rotate. After the welding clamp 3 rotates 180 degrees, the clamping structure of the welding clamp 3 faces the side of the storage tray 10. At this time, the user activates the second electric push rod 902, which moves the lifting plate 8 up along the vertical plate 7. Each storage hole 12 on the storage tray 10 contains an unused welding rod, and the airbag 13 can then perform welding. The welding rod is clamped and fixed. During the movement of the storage tray 10, the welding rod will be lifted by the air bag 13. As the welding rod rises, the leftmost welding rod will be inserted into the welding clamp 3. At this time, the user reverses the electric push rod 6 to move the moving ring 5 to the right. The control button on the welding clamp 3 used to control the release of the welding rod will move to the right, thereby driving the clamping mechanism on the welding clamp 3 to clamp the leftmost welding rod. At this time, the user reverses the electric push rod 902 to lower the lifting plate 8. The clamped welding rod will be released from the air bag 13. When the clamped welding rod is pulled out from the storage hole 12, the user reverses the motor 11 to rotate the welding clamp 3 180 degrees. At this time, the welding rod can be fed and replaced, and welding work can continue. After the welding rod is used up, the user only needs to turn on the motor 11 to rotate the storage tray 10 until the next storage hole 12 containing welding rod moves to the position aligned with the welding clamp 3. Repeat the above operation to continue feeding and replacing welding rods.

[0026] Please see Figures 1-3 The top of the storage tray 10 is fixedly connected to a vertical rod 14, and the top of the vertical rod 14 is fixedly connected to a support plate 15. The support plate 15 has support holes 16 that correspond one-to-one with the storage holes 12.

[0027] In this utility model, the vertical rod 14 can fix the support plate 15, and the support hole 16 on the support plate 15 can support and guide the welding rod, so as to prevent the welding rod from tilting during the welding process. Moreover, after the welding rod is inserted into the support hole 16, the welding rod can be accurately inserted into the storage hole 12, which makes it easier for the user to feed the welding rod and improves the practicality of the device.

[0028] Please see Figures 1-3 The storage tray 10 and the support tray 15 are fixedly connected by a protective bucket 17, which is located at the top edge of the support tray 15.

[0029] In this invention, the protective bucket 17 can protect the welding rods on the tray 10, preventing the high temperature or impurities generated during welding from contaminating the unused welding rods, thereby improving the practicality of the device.

[0030] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A welding rod feeding and changing mechanism for a welding robot, comprising a robotic arm (1), characterized in that: A fixed plate (2) is fixedly connected to the right side of the robotic arm (1). A welding clamp (3) is inserted through the fixed plate (2) and rotated therewith. A rotating mechanism (4) for driving the welding clamp (3) to rotate is provided on the fixed plate (2). A moving ring (5) is fixedly connected to the control button of the welding clamp (3) for controlling the release of the welding rod. An electric push rod (6) is fixedly connected to the bottom of the welding clamp (3). The left end of the electric push rod (6) is fixedly connected to the moving ring (5). A vertical plate (7) is fixedly connected to the bottom of the fixed plate (2). The right side of the vertical plate (7) is... A lifting plate (8) is slidably connected to the side. A lifting mechanism (9) for driving the lifting plate (8) to rise and fall is provided on the vertical plate (7). A storage tray (10) is rotatably connected to the top of the lifting plate (8). A motor (11) is fixedly connected to the bottom of the lifting plate (8). The output shaft of the motor (11) passes through the lifting plate (8) and is fixedly connected to the storage tray (10). A ring-shaped storage hole (12) is provided on the storage tray (10). An air bladder (13) is embedded in the inner wall of the storage hole (12). The air bladder (13) is ring-shaped.

2. The electrode feeding and changing mechanism for a welding robot according to claim 1, characterized in that: The rotating mechanism (4) includes a gear ring (401), which is sleeved on the welding clamp (3) and fixedly connected thereto. A gear (402) that meshes with the gear ring (401) is rotatably connected to the right side of the fixing plate (2). A second motor (403) is fixedly connected to the left side of the fixing plate (2). The output shaft of the second motor (403) passes through the fixing plate (2) and is fixedly connected to the gear (402).

3. The electrode feeding and changing mechanism for a welding robot according to claim 1, characterized in that: The lifting mechanism (9) includes a vertical groove (901), which is located on the right side of the vertical plate (7). An electric push rod (902) is inserted through the inner top wall of the vertical groove (901) and is fixedly connected to it. The bottom end of the electric push rod (902) is fixedly connected to the lifting plate (8).

4. The electrode feeding and changing mechanism for a welding robot according to claim 1, characterized in that: The top of the storage tray (10) is fixedly connected to a vertical rod (14), and the top of the vertical rod (14) is fixedly connected to a support plate (15). The support plate (15) has support holes (16) that correspond one-to-one with the storage holes (12).

5. The electrode feeding and changing mechanism for a welding robot according to claim 4, characterized in that: A protective bucket (17) is fixedly connected between the storage tray (10) and the support tray (15), and the protective bucket (17) is located at the top edge of the support tray (15).

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