Multi-angle flexible adjustment spraying robot joint structure
By introducing air supply and filtration mechanisms into the joints of the painting robot, combined with cooling pipes and temperature monitoring, the problem of paint contamination in the heat dissipation channels of the painting robot joints has been solved, improving the heat dissipation performance and reliability of the joints and extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUALING TRANSPORTATION EQUIP CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-09
AI Technical Summary
The heat dissipation channels of the joints of the painting robot are easily contaminated by the paint, which affects the heat dissipation performance and reliability of the drive components, and the chemical solvents in the paint may corrode metal parts.
A multi-angle flexibly adjustable joint structure for a painting robot was designed, including an air supply mechanism, a filtration mechanism, and a cooling pipe. A fan provides clean air for heat dissipation, and the air is filtered through a filter element. The cooling pipe reduces the air temperature, and a temperature sensor and alarm are set up to monitor abnormal temperatures.
This effectively prevents paint from entering the joint, improves the joint's heat dissipation performance and service life, prevents damage to the motor and reducer, and ensures the normal operation of the painting robot.
Smart Images

Figure CN224332494U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying robot technology, and in particular to a spraying robot joint structure that can be flexibly adjusted at multiple angles. Background Technology
[0002] A painting robot is an industrial machine that can automatically spray paint or other coatings, precisely applying the coating to the surface of various workpieces. It is widely used in many industries that require surface spraying treatment, such as automobile manufacturing, home appliance production, and furniture coating. A painting robot with multiple angles and flexible adjustment can mimic the movements of a human arm and is a type of painting robot.
[0003] Multi-angle adjustable painting robots have multiple joints, each containing drive components such as motors and reducers. These drive components generate heat during operation; therefore, it is essential to provide heat dissipation channels for each joint to ensure the drive components operate at a suitable temperature. Paint is sprayed from the spray gun in a mist-like distribution. When the robot's joints are close to the spray gun, paint particles may enter the joint through the heat dissipation channels with the airflow. Paint typically contains chemical solvents and other components that can damage the drive components and other internal parts. For example, paint may contaminate the motor windings, affecting their heat dissipation and electrical performance, and may also corrode metal components in the reducer, compromising its precision and reliability. To address these issues, we propose this multi-angle adjustable painting robot joint structure. Utility Model Content
[0004] The main purpose of this invention is to provide a joint structure for a painting robot that can be flexibly adjusted at multiple angles, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A multi-angle flexibly adjustable painting robot joint structure includes a first joint housing, a second joint housing, and a third joint housing. A first rotating tube and a second rotating tube are fixedly connected to the side walls of the second and third joint housings, respectively. A spray gun mounting base is rotatably connected to the side wall of the third joint housing. A first reduction motor, a second reduction motor, and a third reduction motor are respectively installed inside the first, second, and third joint housings. An air supply mechanism for supplying air is provided on the side wall of the first joint housing. The air supply mechanism includes an air inlet pipe disposed on the side wall of the first joint housing, and a fan is installed inside the air inlet pipe. An exhaust pipe is connected to the side wall of the third joint housing, and a second dust cover is provided on the exhaust pipe. A filter mechanism for filtering air is provided on the side wall of the air inlet pipe.
[0007] Preferably, the filtration mechanism includes a filter tube disposed on the side wall of the air intake pipe, a filter element is disposed inside the filter tube, and a first dust cover is disposed on the side wall of the filter tube.
[0008] Preferably, the filter tube is threadedly connected to the air intake pipe, and the first dust cover is threadedly connected to the filter tube.
[0009] Preferably, a cooling pipe is connected to the air intake pipe, and a valve is provided on the cooling pipe.
[0010] Preferably, the second joint housing sidewall is provided with a cooling pipe, the second dust cover is threadedly connected to the exhaust pipe, and the exhaust pipe is provided with a one-way valve.
[0011] Preferably, a first temperature sensor is provided at the upper end of the second joint housing, and a first alarm is provided at the upper end of the second joint housing.
[0012] Preferably, a second temperature sensor is provided at the upper end of the third joint housing, and a second alarm is provided at the upper end of the third joint housing.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This device is equipped with an air supply mechanism. The fan, located away from the spray gun's outlet, brings flowing air into the first joint housing, the second joint housing, and the third joint housing for heat dissipation. This avoids the problem of multiple joints having heat dissipation channels, which could easily allow paint to enter and affect the heat dissipation performance of the motor, thereby improving the service life of the robot joints.
[0015] 2. This device is equipped with a filtration mechanism. Secondly, the air entering the air intake pipe can be filtered through the filter element in the filter tube, further preventing paint from entering the joint.
[0016] 3. This device is equipped with cooling pipes and cold air pipes, which can further improve the heat dissipation effect of the joint by reducing the temperature of the air entering the joint when the workshop temperature rises. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the joint structure of the spraying robot that can be flexibly adjusted at multiple angles according to this utility model.
[0018] Figure 2 This is a side view of the joint structure of the spraying robot that can be flexibly adjusted at multiple angles according to this utility model.
[0019] Figure 3 This is another side view of the joint structure of the spraying robot that can be flexibly adjusted at multiple angles according to this utility model.
[0020] Figure 4This is a cross-sectional view of the joint structure of the spraying robot that can be flexibly adjusted at multiple angles, as proposed in this utility model.
[0021] In the diagram: 1 First joint housing, 2 First rotating tube, 3 Inlet pipe, 4 Fan, 5 Second joint housing, 6 Second rotating tube, 7 Third joint housing, 8 Spray gun mounting base, 9 Exhaust pipe, 10 First geared motor, 11 Filter tube, 12 First dust cover, 13 Filter element, 14 Cooling pipe, 15 Second geared motor, 16 Third geared motor, 17 Cooling pipe, 18 First alarm, 19 First temperature sensor, 20 Second alarm, 21 Second temperature sensor, 22 One-way valve, 23 Second dust cover. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figure 1-4 As shown, the joint structure of the multi-angle flexibly adjustable painting robot includes a first joint housing 1, a second joint housing 5, and a third joint housing 7. The side walls of the second joint housing 5 and the third joint housing 7 are respectively fixedly connected to a first rotating tube 2 and a second rotating tube 6. The first joint housing 1 is rotatably connected to the first rotating tube 2, the second joint housing 5 is rotatably connected to the second rotating tube 6, and the side wall of the third joint housing 7 is rotatably connected to a spray gun mounting base 8. The spray gun mounting base 8 is a component on the painting robot in the prior art, and its structure is prior art. The first joint housing 1, the second joint housing 5, and the third joint housing 7 are respectively provided with a first reduction motor 10, a second reduction motor 15, and a third reduction motor 16. The first reduction motor 10, the second reduction motor 15, and the third reduction motor 16 are all drive components used in the painting robot in the prior art, so they will not be described in detail.
[0024] The first joint housing 1 has an air supply mechanism on its side wall for supplying air. The air supply mechanism includes an air inlet pipe 3 on the side wall of the first joint housing 1. A fan 4 is provided inside the air inlet pipe 3. The third joint housing 7 has an exhaust pipe 9 connected to its side wall. A second dust cover 23 is provided on the exhaust pipe 9.
[0025] The side wall of the air intake pipe 3 is provided with a filter mechanism for filtering air. The filter mechanism includes a filter pipe 11 disposed on the side wall of the air intake pipe 3, a filter element 13 disposed inside the filter pipe 11, and a first dust cover 12 disposed on the side wall of the filter pipe 11.
[0026] In this utility model, the filter tube 11 is threadedly connected to the air inlet pipe 3, which makes the fan 4 easy to maintain. The first dust cover 12 is threadedly connected to the filter tube 11, which makes it easy to clean the first dust cover 12.
[0027] In this utility model, a cooling pipe 17 is connected to the air inlet pipe 3. A valve is provided on the cooling pipe 17. The cooling pipe 17 can be connected to an external air conditioning unit or air conditioning equipment through a flexible hose, so that the temperature inside the equipment can be maintained normally even when the temperature inside the workshop is too high under particularly hot conditions.
[0028] In this utility model, the second joint housing 5 has a cooling pipe 14 on its side wall. The cooling pipe 14 can be connected to an external chiller, which can further improve the heat dissipation effect inside the equipment. The second dust cover 23 is threadedly connected to the exhaust pipe 9, and the exhaust pipe 9 is equipped with a one-way valve 22.
[0029] In this utility model, a first temperature sensor 19 is provided at the upper end of the second joint housing 5, and a first alarm 18 is provided at the upper end of the second joint housing 5. The second joint housing 5 can monitor the temperature of the second joint housing 5. When the nearby temperature rises, it can remind people that there is an abnormality in the first joint housing 1 and the second joint housing 5, so that people can troubleshoot the fault in time.
[0030] In this utility model, a second temperature sensor 21 is provided at the upper end of the third joint housing 7, and a second alarm 20 is provided at the upper end of the third joint housing 7. The third joint housing 7 can monitor the temperature of the third joint housing 7. When the nearby temperature rises, it can remind people that there is an abnormality in the first joint housing 1, the second joint housing 5, and the third joint housing 7, so that people can troubleshoot the fault in time.
[0031] In the initial state, the air conditioning pipe 17 is connected to the external air conditioning unit through an external hose, and the cooling pipe 14 is connected to the external chiller through an external hose.
[0032] It should be noted that this utility model is a multi-angle flexibly adjustable joint structure for a painting robot. The first rotating pipe 2 connects the first joint housing 1 and the second joint housing 5, and the second rotating pipe 6 connects the second joint housing 5 and the third joint housing 7. The fan 4 in the air inlet pipe 3 provides flowing air to the first joint housing 1, the second joint housing 5, and the third joint housing 7 to remove the heat from them. The hot air is discharged from the exhaust pipe 9. Since the air inlet pipe 3 is far from the spray gun's spray position, it provides clean air for heat dissipation, avoiding the problem of multiple joints having heat dissipation channels, which could cause paint to enter and damage electrical components and mechanical parts. Paint may also cover the motor windings, affecting the motor's heat dissipation performance and potentially causing short circuits or other malfunctions.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-angle flexibly adjustable painting robot joint structure, comprising a first joint housing (1), a second joint housing (5), and a third joint housing (7), characterized in that, The second joint housing (5) and the third joint housing (7) are respectively fixedly connected to the side walls of the first rotating tube (2) and the second rotating tube (6). The side wall of the third joint housing (7) is rotatably connected to the spray gun mounting base (8). The first joint housing (1), the second joint housing (5) and the third joint housing (7) are respectively provided with the first reduction motor (10), the second reduction motor (15) and the third reduction motor (16). The side wall of the first joint housing (1) is provided with an air supply mechanism for supplying air. The air supply mechanism includes an air inlet pipe (3) provided on the side wall of the first joint housing (1). The air inlet pipe (3) is provided with a fan (4). The side wall of the third joint housing (7) is connected to an exhaust pipe (9). The exhaust pipe (9) is provided with a second dust cover (23). The side wall of the air inlet pipe (3) is provided with a filter mechanism for filtering air.
2. The multi-angle flexibly adjustable joint structure of the painting robot according to claim 1, characterized in that, The filtration mechanism includes a filter tube (11) disposed on the side wall of the air inlet pipe (3), a filter element (13) is provided inside the filter tube (11), and a first dust cover (12) is provided on the side wall of the filter tube (11).
3. The multi-angle flexibly adjustable joint structure of the painting robot according to claim 2, characterized in that, The filter tube (11) is threadedly connected to the air inlet pipe (3), and the first dust cover (12) is threadedly connected to the filter tube (11).
4. The multi-angle flexibly adjustable joint structure of the painting robot according to claim 3, characterized in that, The air intake pipe (3) is connected to a cooling pipe (17), and the cooling pipe (17) is equipped with a valve.
5. The multi-angle flexibly adjustable joint structure of the painting robot according to claim 4, characterized in that, The second joint housing (5) has a cooling pipe (14) on its side wall, and the second dust cover (23) is threadedly connected to the exhaust pipe (9). The exhaust pipe (9) is equipped with a one-way valve (22).
6. The multi-angle flexibly adjustable joint structure of the painting robot according to claim 1, characterized in that, The upper end of the second joint housing (5) is provided with a first temperature sensor (19) and a first alarm (18).
7. The multi-angle flexibly adjustable joint structure of the painting robot according to claim 1, characterized in that, The upper end of the third joint housing (7) is provided with a second temperature sensor (21) and a second alarm (20).