Motor home chassis welding robot

Abstract

The utility model discloses a motor home chassis welding robot which comprises a plane sliding way set and sliding ways arranged in the X-axis direction and the Y-axis direction in a sliding mode. The sliding platform is arranged on a sliding way of the plane sliding way set in a sliding mode in the Y-axis direction; the base is mounted on the sliding platform; the lifting device is installed on the base and provided with a sliding rod and a spiral transmission mechanism which are arranged in the Z-axis direction; the mechanical arm is connected to the spiral transmission mechanism and moves in the Z-axis direction; and the welding head is connected to the end part of the mechanical arm. By means of the design of the motor home chassis welding robot, large-range and high-efficiency welding is achieved, and important technical support is provided for the motor home manufacturing industry.

Description

Technical Field

[0001] The utility model relates to a welding robot, in particular to a recreational vehicle chassis welding robot. Background Art

[0002] In addition to high-precision welding capabilities, robots used for RV chassis welding also need strong flexibility. This is due to the diverse welding tasks of RV chassis. Therefore, in addition to having multi-axis freedom and being able to flexibly adapt to welding tasks at different angles and positions, robots used for RV chassis welding also need strong working range coverage capabilities to adapt to the larger characteristics of RV chassis.

[0003] Existing robots used for RV chassis welding generally use multi-axis robotic arms. The coverage range (both horizontal and vertical directions) of a simple multi-axis robotic arm is limited by the extension length of the robotic arm and cannot reach all positions that need to be welded. This will limit the application scope of the robot and require additional auxiliary equipment or manual intervention. The movement of a larger RV chassis will inevitably require huge manpower and financial resources. Therefore, in order to meet the frequent movement and position adjustment when performing welding tasks, a welding robot that is suitable for RV chassis is urgently needed. Utility Model Content

[0004] In order to solve the deficiencies of the above technologies, the utility model provides a RV chassis welding robot.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a RV chassis welding robot, comprising:

[0006] Plane slide assembly, slides set along the X-axis and Y-axis directions;

[0007] A sliding platform is slidably arranged on a slide arranged on a planar slide group along the Y-axis direction;

[0008] A base, mounted on the sliding platform;

[0009] A lifting device is installed on the base and has a slide rod and a screw transmission mechanism arranged along the Z-axis direction;

[0010] The robotic arm is connected to the screw transmission mechanism and moves along the Z-axis;

[0011] The welding head is connected to the end of the robotic arm.

[0012] Furthermore, the slideways slidingly arranged along the X-axis and Y-axis directions include a parallel slideway 1 arranged along the X-axis direction and a parallel slideway 2 arranged along the Y-axis direction. The parallel slideway 2 is slidingly arranged on the parallel slideway 1 through a pulley 1 at the bottom.

[0013] Furthermore, the base is slidably arranged on the parallel slideway 2 via the pulley 2 at the bottom.

[0014] Furthermore, the sliding rod of the lifting device is fixed by mounting plates at the upper and lower ends, and the mounting plate at the lower end is connected to the base.

[0015] Furthermore, there are three slide bars, which are arranged in parallel between the mounting plates at the upper and lower ends.

[0016] Furthermore, the spiral transmission mechanism includes a screw arranged along the Z-axis direction, the bottom end of the screw is connected to the screw motor, the screw motor is fixed on the mounting plate at the upper end, a nut plate is connected to the screw, the nut plate is fixedly connected to the robotic arm, and the nut plate is also slidably arranged on the slide rod.

[0017] Furthermore, the base is circular, and the mounting plate at the lower end is rotatably connected to the center of the base through a rotating shaft. The circumferential side wall of the base is provided with an annular gear row, and a transmission motor is fixed on the mounting plate at the lower end. A gear is installed on the output shaft of the transmission motor, and a transmission belt is jointly mounted on the gear and the annular gear row.

[0018] The utility model discloses a RV chassis welding robot. Through its circular base design and precise transmission mechanism, it realizes flexible two-dimensional plane movement, accurate vertical adjustment and flexible on-site rotation, enhances the robot's adaptability to different welding trajectories and working surfaces, thereby improving the overall welding efficiency and quality, providing an efficient technical solution for the RV manufacturing industry, and promoting the technological progress and sustainable development of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the first embodiment of the present invention.

[0020] Figure 2 This is a bottom view of the first embodiment of the present invention.

[0021] Figure 3 This is a three-dimensional diagram of the second embodiment of the present invention.

[0022] Figure 4 This is the front view of the second embodiment of the present utility model.

[0023] In the figure: 100, flat slide group; 110, parallel slide 1; 120, parallel slide 2; 130, pulley 1; 200, sliding platform; 300, base; 310, annular gear row; 320, pulley 2; 400, lifting device; 410, slide rod; 420, mounting plate; 421, lead screw; 422, lead screw motor; 423, nut plate; 500, robotic arm; 600, welding head; 700, transmission motor; 800, transmission belt. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Embodiment 1;

[0026] Figure 1 and Figure 2 The RV chassis welding robot shown includes a planar slide assembly 100 , a sliding platform 200 , a base 300 , a lifting device 400 , a robotic arm 500 and a welding head 600 .

[0027] The planar slide group 100 is the basis of the robot's movement, and is mainly composed of slides arranged for sliding along the X-axis and Y-axis directions; wherein, the slides arranged for sliding along the X-axis and Y-axis directions include a parallel slide 110 arranged along the X-axis direction and a parallel slide 2 120 arranged along the Y-axis direction. The parallel slide 110 arranged along the X-axis direction and the parallel slide 2 120 arranged along the Y-axis direction are perpendicular to each other, forming a two-dimensional planar motion system. The parallel slide 2 120 is slidably set on the parallel slide 1 110 through the pulley 1 130 at the bottom. It should be understood that the pulley 130 is driven by an internal or external micro motor to achieve smooth movement of the parallel slide 2 120 relative to the parallel slide 1 110.

[0028] The sliding platform 200 slides along the Y-axis of the planar slide assembly 100. It bears the weight of the entire robot system and provides support for the robot's movement along the Y-axis. The base 300 slides along the parallel slide 120 via a second pulley 320 at its bottom. Similarly, the second pulley 320 is driven by a micromotor to ensure smooth movement of the base 300 relative to the parallel slide 120.

[0029] The base 300 is mounted on the sliding platform 200; the lifting device 400 is mounted on the base 300 and has a slide rod 410 and a spiral transmission mechanism arranged along the Z-axis direction; the slide rod 410 of the lifting device 400 is fixed by mounting plates 420 at the upper and lower ends, and the mounting plate 420 at the lower end is connected to the base 300. In this embodiment, there are three slide rods 410, and the three slide rods 410 are arranged in parallel between the mounting plates 420 at the upper and lower ends. The spiral transmission mechanism includes a screw 421 arranged along the Z-axis direction, the bottom end of the screw 421 is connected to the screw motor 422, and the screw motor 422 is fixed to the mounting plate 420 at the upper end. The screw 421 is connected to a nut plate 423, and the nut plate 423 is also slidably arranged on the slide rod 410. The main function of the lifting device is to enable the robot to move in the Z-axis direction to adapt to welding requirements of different heights and angles.

[0030] The robotic arm 500 is connected to the spiral transmission mechanism and moves along the Z-axis direction; the robotic arm 500 is fixedly connected to the nut plate 423. When the nut plate 423 moves along the Z-axis direction, the flexibility and accuracy of the robotic arm are the key to ensuring the welding quality. The robotic arm itself can also perform complex welding operations in three-dimensional space or two-dimensional space.

[0031] The welding head 600 is connected to the end of the robot arm and is a key component for the robot to perform welding.

[0032] In this embodiment, when the RV chassis welding robot is started, the flat slide assembly 100, sliding platform 200, base 300, lifting device 400, robotic arm 500 and welding head 600 work together to complete the welding task. The overall workflow includes:

[0033] Two-dimensional plane movement: The planar slide assembly 100 and the sliding platform 200 work together to enable the robot to perform two-dimensional plane movement in the X-axis and Y-axis directions. This movement enables the robot to cover the entire welding area.

[0034] Vertical Movement: The lift 400 allows the robot to move in the Z-axis to accommodate welding at varying heights and angles. Precise control of the screw drive mechanism allows for fine-tuning of the robot in the vertical direction.

[0035] Robotic Arm Movement: The Robotic Arm 500 performs complex welding operations within the space it covers, following pre-set trajectory and speed requirements. The flexibility and precision of the Robotic Arm ensures welding quality.

[0036] Welding process: The welding head 600, guided by the robotic arm, performs welding according to preset welding parameters. During the welding process, the robot monitors the welding quality in real time and makes adjustments as needed.

[0037] It should be noted that the above control process is based on the control principle of the existing technology, including the control of each motor and the control of the robot arm and the welding head. The robot arm and the welding head are commercially available products.

[0038] In summary, the robot has the following advantages:

[0039] High coverage: The robot moves in two dimensions in the X and Y directions. This movement enables the robot to cover the entire welding area without moving the RV chassis.

[0040] Strong adaptability: The robot can perform complex welding operations in three-dimensional space and adapt to various welding needs.

[0041] Good stability: The robot adopts a stable base and slide rod structure to ensure stability during the welding process.

[0042] Embodiment 2;

[0043] Figure 3 and Figure 4 The RV chassis welding robot shown includes a planar slide assembly 100 , a sliding platform 200 , a base 300 , a lifting device 400 , a robotic arm 500 , a joint 600 , a transmission motor 700 , and a transmission belt 800 .

[0044] The planar slide group 100 is the basis of the robot's movement, and is mainly composed of slides arranged for sliding along the X-axis and Y-axis directions; wherein, the slides arranged for sliding along the X-axis and Y-axis directions include a parallel slide 110 arranged along the X-axis direction and a parallel slide 2 120 arranged along the Y-axis direction. The parallel slide 110 arranged along the X-axis direction and the parallel slide 2 120 arranged along the Y-axis direction are perpendicular to each other, forming a two-dimensional planar motion system. The parallel slide 2 120 is slidably set on the parallel slide 1 110 through the pulley 1 130 at the bottom. It should be understood that the pulley 130 is driven by an internal or external micro motor to achieve smooth movement of the parallel slide 2 120 relative to the parallel slide 1 110.

[0045] The sliding platform 200 slides along the Y-axis of the planar slide assembly 100. It bears the weight of the entire robot system and provides support for the robot's movement along the Y-axis. The base 300 slides along the parallel slide 120 via a second pulley 320 at its bottom. Similarly, the second pulley 320 is driven by a micromotor to ensure smooth movement of the base 300 relative to the parallel slide 120.

[0046] The base 300 is mounted on the sliding platform 200; the lifting device 400 is mounted on the base 300 and includes a slide rod 410 and a screw transmission mechanism arranged along the Z-axis. The slide rods 410 of the lifting device 400 are fixed by mounting plates 420 at the upper and lower ends, and the mounting plate 420 at the lower end is connected to the base 300. In this embodiment, there are three slide rods 410, which are arranged in parallel between the upper and lower mounting plates 420. The screw transmission mechanism includes a lead screw 421 arranged along the Z-axis. The bottom end of the lead screw 421 is connected to a lead screw motor 422, which is fixed to the mounting plate 420 at the upper end. The lead screw 421 is connected to a nut plate 423, which is simultaneously slidably mounted on any two slide rods 410. In other embodiments, the nut plate 423 can also slide on all three slide rods 410. The main function of the lifting device is to enable the robot to move along the Z-axis to adapt to welding requirements of different heights and angles.

[0047] The robotic arm 500 is connected to the spiral transmission mechanism and moves along the Z-axis direction; the robotic arm 500 is fixedly connected to the nut plate 423. When the nut plate 423 moves along the Z-axis direction, the flexibility and accuracy of the robotic arm are the key to ensuring the welding quality. The robotic arm itself can also perform complex welding operations in three-dimensional space or two-dimensional space.

[0048] The welding head 600 is connected to the end of the robot arm and is a key component for the robot to perform welding.

[0049] In this embodiment, the base 300 is circular. The mounting plate 420 at the lower end is rotatably connected to the center of the base 300 via a rotating shaft. An annular gear row 410 is formed on the circumferential sidewalls of the base 300. A transmission motor 700 is fixed to the mounting plate 420 at the lower end. A gear 710 is mounted on the output shaft of the transmission motor 700. A transmission belt 800 is mounted on the gear 710 and the annular gear row 410. The circular base design allows for more flexible movement of the robot in the horizontal plane (X and Y axes). The mounting plate, connected by a rotating shaft, allows the base to rotate about the central axis, increasing the robot's freedom of movement in the plane. Furthermore, the combination of the annular gear row and the gears, with power transmitted via the transmission belt, provides more precise motion control. The meshing of the gears and the gear row reduces backlash during relative motion, improving motion accuracy. The circular base provides a better support surface, making the robot more stable during operation. The stable base also contributes to improved welding quality.

[0050] The circular base's ability to rotate allows the robot to better adapt to different welding trajectories and work surfaces, increasing its versatility. Overall, this design not only improves the robot's kinematic performance but also enhances its adaptability, thereby improving the robot's overall work efficiency and welding quality.

[0051] In this embodiment, when the RV chassis welding robot is started, the flat slide assembly 100, sliding platform 200, base 300, lifting device 400, robotic arm 500 and welding head 600 work together to complete the welding task. The overall workflow includes:

[0052] Two-dimensional plane movement: The planar slide assembly 100 and the sliding platform 200 work together to enable the robot to perform two-dimensional plane movement in the X-axis and Y-axis directions. This movement enables the robot to cover the entire welding area.

[0053] Vertical Movement: The lift 400 allows the robot to move in the Z-axis to accommodate welding at varying heights and angles. Precise control of the screw drive mechanism allows for fine-tuning of the robot in the vertical direction.

[0054] Horizontal rotation: The circular base 300 enables the robot to move in the horizontal plane (X-axis and Y-axis directions). The base rotates around the central axis to quickly adjust the direction of the robot.

[0055] Robotic Arm Movement: The Robotic Arm 500 performs complex welding operations within the space it covers, following pre-set trajectory and speed requirements. The flexibility and precision of the Robotic Arm ensures welding quality.

[0056] Welding process: The welding head 600, guided by the robotic arm, performs welding according to preset welding parameters. During the welding process, the robot monitors the welding quality in real time and makes adjustments as needed.

[0057] As demonstrated in the above examples, the design of the RV chassis welding robot enables large-scale, highly efficient welding, providing important technical support for the RV manufacturing industry. By optimizing the robot's structure and operating principles, production costs can be further reduced, welding quality can be improved, and the sustainable development of the RV industry can be promoted. In the future, with continued technological advancements, it is expected that this type of welding robot will be widely used in even more fields.

[0058] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A RV chassis welding robot, characterized in that: include: A planar slideway assembly (100), a slideway arranged to slide along the X-axis and Y-axis directions; A sliding platform (200) is slidably arranged on a slideway of the planar slideway group (100) that is slidably arranged along the Y-axis direction; A base (300) is mounted on the sliding platform (200); A lifting device (400) is installed on the base (300) and has a slide bar (410) and a screw transmission mechanism arranged along the Z-axis direction; A robotic arm (500) connected to the screw transmission mechanism and moving along the Z-axis direction; The welding head (600) is connected to the end of the robot arm.

2. The RV chassis welding robot according to claim 1, characterized in that: The slideways arranged for sliding along the X-axis and Y-axis directions include a parallel slideway 1 (110) arranged along the X-axis direction and a parallel slideway 2 (120) arranged along the Y-axis direction. The parallel slideway 2 (120) is slidably arranged on the parallel slideway 1 (110) through a pulley 1 (130) at the bottom.

3. The RV chassis welding robot according to claim 1 or 2, characterized in that: The base (300) is slidably arranged on the parallel slideway (120) via the second pulley (320) at the bottom.

4. The RV chassis welding robot according to claim 3, characterized in that: The sliding rod (410) of the lifting device (400) is fixed via mounting plates (420) at the upper and lower ends, and the mounting plate (420) at the lower end is connected to the base (300).

5. The RV chassis welding robot according to claim 4, characterized in that: There are three slide bars (410), and the three slide bars (410) are arranged in parallel between the mounting plates (420) at the upper and lower ends.

6. The RV chassis welding robot according to claim 4, characterized in that: The screw transmission mechanism includes a lead screw (421) arranged along the Z-axis direction, the bottom end of the lead screw (421) is connected to a lead screw motor (422), the lead screw motor (422) is fixed to a mounting plate (420) located at the upper end, a nut plate (423) is connected to the lead screw (421), the nut plate (423) is fixedly connected to the mechanical arm (500), and the nut plate (423) is simultaneously slidably arranged on the slide rod (410).

7. The RV chassis welding robot according to claim 4, characterized in that: The base (300) is circular, and the mounting plate (420) at the lower end is rotatably connected to the center of the base (300) via a rotating shaft. The circumferential side wall of the base (300) is provided with an annular gear row (310). A transmission motor (700) is fixed to the mounting plate (420) at the lower end. A gear (710) is mounted on the output shaft of the transmission motor (700). A transmission belt (800) is mounted on both the gear (710) and the annular gear row (310).

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