Spray gun for vehicle door wax injection and vehicle door wax injection robot spraying system

Abstract

The utility model provides a spray gun for car door wax injection and a car door wax injection robot spraying system, the spray gun for car door wax injection comprises a spray gun body and a nozzle, the nozzle is connected with the spray gun body, the nozzle is provided with a wax outlet hole and a plurality of air outlet holes, the wax outlet hole is used for spraying water-based anti-corrosion wax materials, and the plurality of air outlet holes are arranged around the wax outlet hole. The air outlet hole is used for spraying compressed air. According to the utility model, a plurality of air outlet holes for spraying compressed air are additionally arranged around the wax outlet hole of the nozzle, so that the compressed air can be sprayed from the periphery of the wax line, the original wax line is blown into wax mist, the coverage area of the water-based anticorrosive wax is enlarged, the area needing to be sprayed can be better covered, and the spraying quality problem is reduced. Due to the fact that the spraying area is enlarged, the robot does not need to conduct spraying repeatedly in the target area in the spraying process, and material waste is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle technical field, concretely relates to a spray gun for vehicle door wax injection and vehicle door wax injection robot spraying system. BACKGROUND

[0002] In the vehicle manufacturing process, multiple process steps are needed, among which the main task of the vehicle door wax injection robot is to use the robot spraying system to spray water-based anticorrosive wax to the welding point and welding seam area in the vehicle door, so that the water-based anticorrosive wax can isolate the welding area on the vehicle door panel from the air and ensure the corrosion resistance of the welding area.

[0003] The existing nozzle in the robot spraying system has only one wax outlet hole through which the water-based anticorrosive wax can be sprayed to form a straight wax line and be directly sprayed to the welding seam area of the vehicle door.

[0004] The area covered by the wax line is usually small. In addition, due to the cumulative errors of the manufacturing error of the vehicle body, the movement error of the robot, the movement jitter of the nozzle, etc., the wax line cannot accurately cover the target area (i.e. the welding seam area), resulting in defects in the spraying quality and failing to achieve the qualified corrosion resistance effect.

[0005] Due to the poor coverage effect of the original nozzle, there are often irregular deviations. Therefore, when making the spraying program, it is usually necessary to spray more water-based anticorrosive wax, so that the excess water-based anticorrosive wax can flow to the position not sprayed to ensure the coverage quality of the target area. This will result in the waste of water-based anticorrosive wax. SUMMARY

[0006] The utility model provides a spray gun for vehicle door wax injection and vehicle door wax injection robot spraying system to solve the problem of waste of water-based anticorrosive wax in the prior art.

[0007] In order to solve the above technical problems, the utility model provides a spray gun for vehicle door wax injection, which comprises a spray gun body and a nozzle, the nozzle is connected with the spray gun body, the nozzle is provided with a wax outlet hole and a plurality of air outlet holes, the wax outlet hole is used for spraying water-based anticorrosive wax material, the plurality of air outlet holes are arranged around the wax outlet hole, and the air outlet hole is used for spraying compressed air.

[0008] In one embodiment of the utility model, the nozzle is in a conical structure, the wax outlet hole is located at the tip of the conical structure, and the plurality of air outlet holes are located on the conical surface of the conical structure.

[0009] In one embodiment of the utility model, the plurality of air outlet holes are uniformly arranged along the circumference of the nozzle.

[0010] In one embodiment of the utility model, the diameter of the nozzle is 0.1mm-0.3mm.

[0011] In an embodiment of the present application, the distance between the air outlet hole and the wax outlet hole is 1mm-3mm along the axis direction of the nozzle.

[0012] In an embodiment of the present application, the number of the air outlet holes is four to eight.

[0013] In an embodiment of the present application, the nozzle body is formed with a wax outlet channel and an air outlet channel, the wax outlet channel is communicated with the wax outlet hole, and the air outlet channel is communicated with the plurality of air outlet holes.

[0014] In an embodiment of the present application, the cross section of the wax outlet channel is circular, the cross section of the air outlet channel is circular ring, and the air outlet channel and the wax outlet channel are concentrically arranged.

[0015] The present application also provides a vehicle door wax injection robot spraying system, which comprises a robot body, a spraying feed system and a spray gun for vehicle door wax injection according to the above description of the present application, the spray gun is arranged on the robot body, the spraying feed system is communicated with the air outlet hole of the spray gun through an air inlet pipe, and a control valve is arranged on the air inlet pipe.

[0016] In an embodiment of the present application, the control valve is an electromagnetic valve.

[0017] In an embodiment of the present application, the vehicle door wax injection robot spraying system comprises a pressure regulating valve, and the pressure regulating valve is arranged on the air inlet pipe.

[0018] The present application adds a plurality of air outlet holes for spraying compressed air around the wax outlet hole of the nozzle, so that the compressed air can be sprayed from the air outlet holes around the wax line, when the water-based anticorrosive wax and the compressed air are sprayed from the nozzle at the same time, the water-based anticorrosive wax sprayed from the wax outlet hole will be scattered to form a conical wax mist under the blowing action of the compressed air, and the coverage area of the water-based anticorrosive wax is expanded, so that the area to be sprayed can be better covered, and the spraying quality problem is reduced. Since the coverage area is increased, the robot does not need to repeatedly spray in the target area during the spraying process, and material waste is avoided. In addition, since the compressed air sprayed from the air outlet hole blows the thick wax line into a thin wax mist, the water-based anticorrosive wax can be uniformly sprayed to the weld area of the vehicle door, so that the discharge flow rate of the water-based anticorrosive wax in the nozzle can be reduced, and the water-based anticorrosive wax is further saved.

[0019] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1The structure schematic view of the spray gun for wax injection of the vehicle door according to an embodiment of the present utility model;

[0021] Figure 2 The front view of the spray gun for wax injection of the vehicle door according to an embodiment of the present utility model;

[0022] Figure 3 For Figure 2 The middle B-B direction section view.

[0023] In the figure: 1, nozzle; 11, wax outlet hole; 12, air outlet hole; 13, wax outlet channel; 14, air outlet channel; 2, spray gun body. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects taken by the present utility model to achieve the predetermined utility model purposes, the specific embodiments and effects according to the present utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0025] In this description, for the purpose of explanation, in the drawings, each system, structure and device is schematically depicted, but all features of the actual system, structure and device are not described, such as the well-known functions or structures are not described in detail, to avoid unnecessary details to make the present application obscure. Of course, it should be understood that in any actual application, many specific implementation decisions need to be made to achieve the specific goals of the developers or users, and need to comply with the system-related and industry-related restrictions, and the specific goals may be different with the actual application. In addition, it should be understood that such specific implementation decisions, although complex and time-consuming, are routine tasks for ordinary skilled persons in the art who benefit from the present application.

[0026] Unless the context requires otherwise, throughout the specification and claims which follow, the word "comprise" is to be construed in an open, inclusive sense, as "comprising but not limited to".

[0027] Throughout the description of this specification, the description referring to the term "one embodiment" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. Therefore, the phrase "in one embodiment" appearing in different places throughout the specification is not necessarily all related to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] In the description of the embodiments of the present application, the term "a plurality of" refers to more than two (including two).

[0029] Figure 1This is a schematic diagram of the structure of a spray gun for waxing car doors according to an embodiment of the present invention; Figure 2 This is a front view of a spray gun for waxing car doors according to an embodiment of the present invention; Figure 3 for Figure 2 Sectional view along the BB direction.

[0030] According to one aspect of this utility model, a spray gun for waxing car doors is provided, such as... Figures 1 to 3 As shown, the spray gun for waxing car doors includes a spray gun body 2 and a nozzle 1. The nozzle 1 is connected to the spray gun body 2. The nozzle 1 is provided with a wax outlet hole 11 and multiple air outlet holes 12. The wax outlet hole 11 is used to spray water-based anti-corrosion wax material. The multiple air outlet holes 12 are arranged around the wax outlet hole 11 and are used to spray compressed air.

[0031] This invention adds multiple compressed air outlets 12 around the wax outlet of nozzle 1, allowing compressed air to be ejected from the outlets around the wax line. When water-based anti-corrosion wax and compressed air are ejected from the nozzle simultaneously, the water-based anti-corrosion wax ejected from the wax outlet 11 is dispersed into a cone-shaped wax mist under the blowing action of the compressed air, expanding the coverage area of ​​the water-based anti-corrosion wax. Therefore, it can better cover the area to be sprayed, reducing spraying quality problems. Due to the increased coverage area, the robot does not need to repeatedly spray the target area during the spraying process, avoiding material waste. In addition, since the compressed air ejected from the outlet 12 blows the thick wax line into a thin wax mist, the water-based anti-corrosion wax can be evenly sprayed onto the weld seam area of ​​the car door, thus reducing the outflow rate of water-based anti-corrosion wax in the nozzle and further saving water-based anti-corrosion wax.

[0032] Specifically, due to the air's dispersing effect on the water-based anti-corrosion wax, the wax line is evenly dispersed. Previously, the wax line sprayed from the nozzle made contact with the car door at a single point. However, because this application blows the water-based anti-corrosion wax into a conical surface (the more evenly it is dispersed, the closer it is to a conical surface), the contact point between the conical surface and the car door becomes a flat surface. This changes the point contact into a larger surface contact, resulting in a larger coverage area for the water-based anti-corrosion wax. At the same time, the water-based anti-corrosion wax is more evenly distributed, the spraying quality is better, and water-based anti-corrosion wax material is more economical.

[0033] High-pressure, high-velocity compressed air is preferred to blow the wax thread into wax mist more evenly.

[0034] The shape of nozzle 1 can be set as needed. In one embodiment of this utility model, for example... Figure 1 As shown, the nozzle 1 has a conical structure, with the wax outlet 11 located at the tip of the conical structure, and multiple air outlets 12 located on the conical surface of the conical structure. This embodiment uses a conical nozzle 1, which facilitates the processing of multiple wax outlets 11.

[0035] In an embodiment of the present application, the plurality of air outlets 12 are evenly arranged along the circumference of the nozzle 1. That is, in the circumferential direction of the nozzle 1, the distance between the adjacent two air outlets 12 is substantially the same, and the air outlets 12 are evenly spaced. In this way, the water-based anticorrosive wax sprayed from the wax outlet 11 is subjected to more uniform blowing force, and a more uniform conical wax mist can be formed.

[0036] In an embodiment of the present application, the diameter of the nozzle 1 is 0.1mm-0.3mm. The diameter of the nozzle 1 can be 0.1mm, 0.15mm, 0.2mm, 0.25mm or 0.3mm, or other suitable diameters. Preferably, the diameter of the nozzle 1 is 0.2mm.

[0037] Generally, the air outlet 12 should be arranged close to the wax outlet 11, so that the wax sprayed from the wax outlet 11 can be blown into a mist at the first time, and the wax distribution is also more uniform.

[0038] In an embodiment of the present application, along the axial direction of the nozzle 1, the distance between the air outlet 12 and the wax outlet 11 is 1mm-3mm. Specifically, the distance between the air outlet 12 and the wax outlet 11 can be 1mm, 2mm, 3mm, or 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 2mm. The appropriate distance can be selected according to the spraying needs, and the present application does not list them one by one.

[0039] In an embodiment of the present application, the number of air outlets 12 is four to eight. The more the number of air outlets 12, the more uniform the distribution of water-based anticorrosive wax, and the shape of the wax mist is closer to a conical shape.

[0040] The number of wax outlets 11 can be selected according to the diameter of the front end of the nozzle 1, and is not limited to the number listed in the present application.

[0041] In an embodiment of the present application, as shown in Figure 1 the number of air outlets 12 is six. The six air outlets 12 are distributed with an interval of 60°.

[0042] The compressed air can be connected to the nozzle 1 through a separate pipeline, or can be connected to the spray gun body 2 first, and then sprayed from the air outlets 12 through the air outlet passages 14 in the spray gun body 2.

[0043] In an embodiment of the present application, as shown in Figure 3As shown, the wax outlet channel 13 and the gas outlet channel 14 are formed in the spray gun body 2, the wax outlet channel 13 is communicated with the wax outlet hole 11, and the gas outlet channel 14 is communicated with the plurality of gas outlet holes 12.

[0044] In an embodiment of the utility model, as shown in Figure 3 As shown, the cross section of the wax outlet channel 13 is circular, the cross section of the gas outlet channel 14 is circular ring, and the gas outlet channel 14 and the wax outlet channel 13 are concentrically arranged. This embodiment facilitates the processing of the gas outlet hole 12 and can also make the gas more uniformly sprayed from the periphery of the wax outlet hole 11.

[0045] According to another aspect of the utility model, a vehicle door wax injection robot spraying system is provided, which comprises a robot body, a spraying supply system and a spray gun for vehicle door wax injection according to the utility model. The spray gun is arranged on the robot body, the spraying supply system is communicated with the gas outlet hole 12 of the spray gun through an air inlet pipe, and a control valve is arranged on the air inlet pipe.

[0046] The vehicle door wax injection robot spraying system further comprises a spraying application system and a spraying control system. When the door wax injection robot works, the robot body moves the spraying system to the inside of the vehicle door, and the spraying system is used to spray the wax to the specified area. The spraying supply system is used to provide the materials required in spraying, including water-based anticorrosive wax material, compressed air and the like. The spray gun in the utility model belongs to part of the spraying application system. The spraying control system comprises the control valve mentioned above.

[0047] The utility model can control whether the nozzle 1 sprays compressed air, control the switch of compressed air through the control valve, switch two different spraying modes, when the wax line long-distance spraying is required during the spraying process, the compressed air can be closed, and only the wax line is used for spraying. When the wax mist spraying is required, the compressed air switch can be opened at any time, and the coverage area of spraying is changed. The two spraying modes can be switched at will without stopping the line for changing.

[0048] Specifically, the air inlet pipe is connected to one end of the spray gun body 2 and communicated with the gas outlet channel 14 in the spray gun body 2. The compressed air in the spraying supply system enters the gas outlet channel 14 in the spray gun through the air inlet pipe and is finally sprayed from the gas outlet hole 12.

[0049] The control valve can be a manual control valve or a solenoid valve. Preferably, a solenoid valve is adopted to facilitate control.

[0050] When the solenoid valve is closed, the water-based anticorrosive wax material sprayed from the nozzle 1 becomes the original wax line.

[0051] When the electromagnetic valve is opened, compressed air can be sprayed from the air outlet hole 12 around the nozzle 1, and the water-based anticorrosive wax material sprayed from the wax outlet hole 11 can be changed from the original wax line into slightly dispersed wax mist under the influence of the compressed air, and the coverage area of the dispersed wax mist is much larger than that of the original wax line. By switching the electromagnetic valve, the shape and spraying area of the water-based anticorrosive wax sprayed by the nozzle 1 can be controlled.

[0052] The utility model discloses can selectively adopt the original single wax spraying, or wax and air mixed spraying, when the welding seam area is not shielded, selects air mixed spraying mode, can give both to spraying quality and material saving.

[0053] In an embodiment of the utility model, the spraying control system includes a pressure regulating valve, the pressure regulating valve is arranged on the air inlet pipe, the pressure regulating valve can adjust the size of air pressure, and then change the spraying coverage area size. Specifically, the pressure regulating valve can change the air pressure size delivered to the air inlet pipe, and then change the pressure of the compressed air sprayed from the air outlet hole 12, realize the function of adjusting the spraying coverage area size. When the sprayed pressure is larger, the blowing effect of the compressed air sprayed from the air outlet hole 12 to the wax line can scatter the wax line into larger conical wax mist, and the spraying coverage area is larger, when the sprayed pressure is larger, the blowing effect of the compressed air sprayed from the air outlet hole 12 to the wax line is small, and smaller conical wax mist can be formed, and the spraying coverage area is slightly smaller.

[0054] Still need to remind, this application can include any feature or feature combination or its generalization implied or explicitly disclosed in this, not limited to any limited range listed above. Any element, feature and / or structure arrangement described herein can be combined in any suitable manner.

[0055] The above, only is the preferred embodiment of the utility model, and is not any form on the restriction of the utility model, although the utility model has disclosed as above with the preferred embodiment, however, not for limiting the utility model, any familiar professional technical personnel, when can utilize the technical content disclosed above makes some changes or modifies the equivalent embodiment of equivalent change, but any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, all still belong to the range of the technical scheme of the utility model.

Claims

1. A spray gun for waxing of vehicle doors, characterized in that The spray gun body and the nozzle, the nozzle is connected with the spray gun body, the nozzle is provided with a wax outlet hole and a plurality of air outlet holes, the wax outlet hole is used for spraying water-based anticorrosive wax material, and the plurality of air outlet holes are arranged around the wax outlet hole and are used for spraying compressed air.

2. A lance for wax injection into a vehicle door according to claim 1, characterized in that The nozzle is in a conical structure, the wax outlet hole is located at the tip of the conical structure, and the plurality of air outlet holes are located on the conical surface of the conical structure.

3. A lance for wax injection into a vehicle door according to claim 2, characterized in that The plurality of air outlet holes are uniformly arranged along the circumference of the nozzle.

4. A lance for wax injection into a vehicle door according to claim 2, characterized in that The distance between the air outlet hole and the wax outlet hole is 1 mm to 3 mm along the axis direction of the nozzle.

5. A lance for wax injection into a vehicle door according to any one of claims 1-4, characterized in that The diameter of the nozzle is 0.1 mm to 0.3 mm.

6. A lance for wax injection into a vehicle door according to any one of claims 1-4, characterized in that The number of the air outlet holes is four to eight.

7. A lance for wax injection into a vehicle door according to any one of claims 1-4, characterized in that The spray gun body is formed with a wax outlet channel and an air outlet channel, the wax outlet channel is communicated with the wax outlet hole, and the air outlet channel is communicated with the plurality of air outlet holes.

8. A lance for wax injection into a vehicle door according to claim 7, characterized in that The cross section of the wax outlet channel is circular, the cross section of the air outlet channel is circular ring, and the air outlet channel and the wax outlet channel are concentrically arranged.

9. A vehicle door wax injection robot spraying system, characterized in that, The spray gun is arranged on the robot body, the spraying supply system is communicated with the air outlet hole of the spray gun through the air inlet pipe, and the control valve is arranged on the air inlet pipe.

10. The robotic spray system for a vehicle door wax injection machine of claim 9, wherein, The pressure regulating valve is arranged on the air inlet pipe.

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