Automatic multi-shaft welding machine head

Abstract

The automatic multi-shaft welding machine head comprises an execution tail end, a welding gun and a transmission assembly, a first shaft rod and a second shaft rod are installed on the inner side of the execution tail end in a rotating mode, and the second shaft rod is connected to the inner side of the first shaft rod in a rotating and sleeved mode. The transmission assembly comprises a fixed ball seat, a movable ball seat, a transmission shaft rod and a gear ring fixedly installed on one side of the movable ball seat, the gear ring is rotationally connected with the surface of the fixed ball seat, and the two ends of the transmission shaft rod are rotationally connected with the surfaces of the fixed ball seat and the movable ball seat respectively. According to the mechanical arm system, the integrated multi-axis movement machine head structure is arranged, the execution tail end and the welding gun are connected and combined through the transmission assembly, the execution tail end is provided with a two-axis movement structure, the complex structure of a traditional mechanical arm system is omitted, the mechanical arm system can flexibly enter a welding piece to conduct precise welding work, and the whole system structure is more simplified; welding can be carried out at a wider angle and in a wider direction, and the welding requirements of different workpieces are met.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic welding machines, in particular to an automatic multi-axis welding machine head. Background Art

[0002] An automated multi-axis welding machine is a device used for automatic welding, which achieves precision welding of workpieces through a multi-axis motion system. It usually consists of a welding head, a motion control system, a welding power supply, and an operating interface. The welding head is a key component in the welding process. Traditional multi-axis welding machines usually use a robotic arm to drive the welding head to perform multi-axis motion to achieve precision welding of the workpiece. The welding head has no axial motion structure, and the robotic arm system consists of multiple joints and connecting parts. Therefore, the structure is complex and the range of motion is wide. It is impossible to perform refined motion, which makes it impossible to perform welding work in a small space, limiting the layout and flexibility of the production line. In view of this, research and improvement are carried out on the existing problems, and an automated multi-axis welding machine head is provided to solve the current problems. The purpose is to solve the problem and improve the practical value through this technology. Utility Model Content

[0003] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, the technical solution adopted by the utility model is: an automated multi-axis welding machine head, comprising: an execution end, a welding gun and a transmission assembly, a first shaft rod and a second shaft rod are rotatably installed on the inner side of the execution end, the second shaft rod is rotatably sleeved on the inner side of the first shaft rod, the transmission assembly comprises a fixed ball seat, a moving ball seat and a transmission shaft rod and a gear ring fixedly installed on one side of the moving ball seat, the gear ring is rotatably connected to the surface of the fixed ball seat, the two ends of the transmission shaft rod are respectively rotatably connected to the surfaces of the fixed ball seat and the moving ball seat, one end of the welding gun is fixedly connected to a shaft seat rotatably installed on the surface of the moving ball seat, one end of the shaft seat is provided with a driven gear shaft penetrating into the interior of the moving ball seat, and the surface of the transmission shaft rod is provided with two driven gear shafts respectively meshing with the second shaft rod and the surface of the driven gear shaft.

[0005] In a preferred example, the utility model can be further configured as follows: the execution end and the welding gun are on the same axis and arranged perpendicular to the surface of the gear ring, and the transmission teeth, the driven gear shaft and the second shaft rod are all driven by bevel gears.

[0006] In a preferred example, the utility model can be further configured as follows: the fixed ball seat and the moving ball seat are uniformly hemispherical shell structures, and the gear ring and the transmission shaft are both located on the inner side of the fixed ball seat and the moving ball seat.

[0007] In a preferred example, the utility model can be further configured as follows: the end of the first shaft is meshed with the surface of the gear ring for transmission, and the gear ring is coaxially arranged with the transmission shaft.

[0008] In a preferred example, the utility model can be further configured as follows: the shaft seat of the first shaft rod, the driven gear shaft and the inner side of the second shaft rod are all hollow tubes for the welding gun cable to pass through.

[0009] In a preferred example, the utility model can be further configured as follows: motors for driving the first shaft and the second shaft to rotate are respectively provided on both sides of the execution end, and the motor is a stepper motor or a servo motor.

[0010] The beneficial effects achieved by the utility model are:

[0011] 1. In the utility model, a multi-axis motion head structure is set up, and the execution end and the welding gun are connected and combined through a transmission component. The execution end has a two-axis motion structure, which eliminates the complex structure of the traditional robot arm system and can flexibly enter the interior of the weldment for precision welding, making the entire system structure simpler, so that welding can be carried out at a wider range of angles and directions to meet the welding needs of different workpieces.

[0012] 2. In the utility model, a coaxial driving structure is provided, and the first shaft and the second shaft are used to drive the welding gun to perform axial deflection of the transmission shaft and the shaft seat respectively. The coaxial arrangement effectively reduces the volume of the device structure and facilitates precision welding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the exploded structure of an embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the transmission shaft and gear ring structure of an embodiment of the utility model;

[0017] Figure 5 The utility model is a schematic diagram of a transmission shaft transmission structure according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] 100, execution end; 110, first shaft; 120, second shaft; 200, welding gun; 210, shaft seat; 211, driven gear shaft; 300, transmission assembly; 310, fixed ball seat; 320, moving ball seat; 330, transmission shaft; 340, gear ring; 331, transmission gear. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0021] An automated multi-axis welding machine head provided by some embodiments of the present utility model will be described below in conjunction with the accompanying drawings.

[0022] Combination Figure 1-5 As shown, the utility model provides an automated multi-axis welding machine head, comprising: an execution end 100, a welding gun 200 and a transmission assembly 300, wherein a first shaft 110 and a second shaft 120 are rotatably mounted on the inner side of the execution end 100, and the second shaft 120 is rotatably sleeved on the inner side of the first shaft 110, and the transmission assembly 300 comprises a fixed ball seat 310, a moving ball seat 320 and a transmission shaft 330, and a gear ring 340 fixedly mounted on one side of the moving ball seat 320, and the gear ring 340 It is rotatably connected to the surface of the fixed ball seat 310, and both ends of the transmission shaft 330 are rotatably connected to the surfaces of the fixed ball seat 310 and the moving ball seat 320 respectively. One end of the welding gun 200 is fixedly connected to the shaft seat 210 rotatably mounted on the surface of the moving ball seat 320, and one end of the shaft seat 210 is provided with a driven gear shaft 211 that penetrates into the interior of the moving ball seat 320, and the surface of the transmission shaft 330 is provided with two driven gear shafts 211 that are respectively engaged with the surfaces of the second shaft 120 and the driven gear shaft 211.

[0023] In this embodiment, the execution end 100 and the welding gun 200 are arranged on the same axis and perpendicular to the surface of the gear ring 340 , and the transmission teeth 331 , the driven gear shaft 211 and the second shaft 120 are all bevel gear transmission.

[0024] Specifically, the transmission shaft 330 is used as a transmission structure between the second shaft 120 and the driven gear shaft 211 to maintain continuous transmission between the second shaft 120 and the driven gear shaft 211 during the deflection movement of the moving ball seat 320 and the welding gun 200 .

[0025] In this embodiment, the fixed ball seat 310 and the moving ball seat 320 are both hemispherical shell structures, and the gear ring 340 and the transmission shaft 330 are both located on the inner side of the fixed ball seat 310 and the moving ball seat 320 .

[0026] Furthermore, the end of the first shaft 110 meshes with the surface of the gear ring 340 for transmission, and the gear ring 340 is coaxially arranged with the transmission shaft 330 .

[0027] Specifically, the moving ball seat 320 is axially rotated by using tooth meshing transmission, thereby achieving the deflection movement of the welding gun 200 .

[0028] In this embodiment, the shaft seat 210 of the first shaft 110 , the driven gear shaft 211 and the inner side of the second shaft 120 are all hollow tubes for the cable of the welding gun 200 to pass through.

[0029] In this embodiment, motors for driving the first shaft 110 and the second shaft 120 to rotate are respectively disposed on both sides of the execution end 100 , and the motor is a stepper motor or a servo motor.

[0030] The working principle and use process of this utility model:

[0031] The execution end 100 is fixed at the end of the servo robot arm of the automatic welding machine and two independent motors are used to drive the first shaft 110 and the second shaft 120 to rotate respectively. During the welding work, the welding gun 200 and the transmission assembly 300 can penetrate into the weldment. Under the rotation of the first shaft 110 and the second shaft 120 respectively, the ball seat 320 is controlled to rotate to drive the welding gun 200 to deflect around the transmission shaft 330 as the axis, and the transmission shaft 330 is driven to rotate by the second shaft 120 to make the welding gun 200 deflect around the shaft seat 210 as the axis, so as to realize the two-axis rotation of the welding gun 200 for precision welding processing.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automated multi-axis welding machine head, characterized in that: include: An execution end (100), a welding gun (200) and a transmission assembly (300), wherein a first shaft (110) and a second shaft (120) are rotatably mounted on the inner side of the execution end (100), and the second shaft (120) is rotatably sleeved on the inner side of the first shaft (110), and the transmission assembly (300) comprises a fixed ball seat (310), a moving ball seat (320), a transmission shaft (330), and a toothed ring (340) fixedly mounted on one side of the moving ball seat (320), wherein the toothed ring (340) and the surface of the fixed ball seat (310) are connected to each other. Rotationally connected, the two ends of the transmission shaft (330) are rotationally connected to the surfaces of the fixed ball seat (310) and the moving ball seat (320) respectively, one end of the welding gun (200) is fixedly connected to a shaft seat (210) rotatably mounted on the surface of the moving ball seat (320), one end of the shaft seat (210) is provided with a driven gear shaft (211) penetrating into the interior of the moving ball seat (320), and the surface of the transmission shaft (330) is provided with two driven gear shafts (211) respectively meshing with the surfaces of the second shaft (120) and the driven gear shaft (211).

2. The automatic multi-axis welding machine head according to claim 1, characterized in that: The execution end (100) and the welding gun (200) are arranged on the same axis and in a direction perpendicular to the surface of the gear ring (340); the transmission teeth (331), the driven gear shaft (211) and the second shaft (120) are all driven by bevel gears.

3. The automatic multi-axis welding machine head according to claim 1, characterized in that: The fixed ball seat (310) and the moving ball seat (320) are uniformly hemispherical shell structures, and the gear ring (340) and the transmission shaft (330) are both located inside the fixed ball seat (310) and the moving ball seat (320).

4. The automatic multi-axis welding machine head according to claim 1, characterized in that: The end of the first shaft (110) meshes with the surface of the gear ring (340) for transmission, and the gear ring (340) is coaxially arranged with the transmission shaft (330).

5. The automatic multi-axis welding machine head according to claim 1, characterized in that: The shaft seat (210) of the first shaft (110), the driven gear shaft (211) and the inner side of the second shaft (120) are all hollow tubes for the welding gun (200) cable to pass through.

6. The automatic multi-axis welding machine head according to claim 1, characterized in that: Motors for driving the first shaft (110) and the second shaft (120) to rotate are respectively provided on both sides of the execution end (100), and the motor is a stepping motor or a servo motor.

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