Automobile foaming holster, foaming assembly and application method of foaming holster

Abstract

The invention discloses an automobile foaming holster, a foaming assembly and an application method thereof. Relates to the technical field of automobile manufacturing, and provides an automobile foaming holster which can adapt to an industrial robot, can be quickly disassembled and assembled, prevents collision deformation and has excellent sealing performance, a foaming assembly and an application method of the automobile foaming holster. The holster is made of an elastic material; the holster comprises a base band and a holster body; the base band is in a long strip shape, and the middle of the base band is connected with the sleeve body. The sleeve body comprises a cylindrical section and a circular truncated cone section; the cylindrical section is positioned between the circular truncated cone section and the base band; mounting holes are formed in the two ends of the base band; and a cavity is formed in the sleeve body. The foaming assembly comprises a foaming gun and a gun sleeve.

Description

Technical Field

[0001] This invention relates to the field of automotive manufacturing technology, specifically to an automotive foaming gun shroud, foaming components, and application methods adapted to industrial robots. Background Technology

[0002] Against the backdrop of the technological revolution in intelligent manufacturing, industrial robot technology has developed rapidly and has been widely applied in various fields such as machinery, electronics, logistics, and chemicals. Industrial robots also play a crucial role in the manufacturing of new energy vehicles; however, in certain manufacturing processes, the application of robots still faces certain obstacles, preventing the full realization of the high efficiency and high quality advantages of intelligent manufacturing.

[0003] Taking the foaming process for filling automotive cavities as an example, foaming is an important means of reducing interior noise and vibration, and improving vehicle safety. In existing technologies, the foaming process for automotive cavities requires temperature control of materials A and B to increase the reaction rate and achieve the designed foaming density. Due to the temperature requirements, a metal injection gun is typically used for foaming. Materials A and B are simultaneously sprayed from the nozzle at a set ratio, reacting rapidly within the cavity to form a dense, porous foamed solid. After foaming, to ensure injection accuracy, the gun tip is cleaned before the next round of foaming, repeating this process until the entire procedure is complete. When foaming the designed area, the nozzle enters the process hole, and the hard contact between the metal gun and the automotive sheet metal can easily cause collisions, leading to sheet metal deformation or gun damage. Furthermore, gaps are easily created between the gun and the process hole, causing foamed material to overflow and splash. These collision and overflow issues significantly impact vehicle quality and production efficiency.

[0004] To avoid collisions and foam overflow, a slow, direct-to-the-hole foaming method is typically used. However, this method is only suitable for manual operation and is unsuitable for automated robotic foaming, resulting in extremely low production efficiency. Furthermore, due to limitations in vehicle body precision, skid precision, and machine positioning precision, even automated robotic foaming requires a vision-guided positioning system. However, the vision system's guidance accuracy is affected by variations in vehicle body color, process hole shape, and external lighting, leading to some deviation. This deviation causes the foaming gun to not be centered within the process hole. This can also result in localized collisions, causing the vehicle body to be compressed and deformed. On the opposite side of the collision point, gaps may appear between the foaming gun and the sheet metal, allowing foam material to overflow directly from these gaps, thus failing to achieve the designed foaming state.

[0005] Therefore, how to eliminate the problems of collision and overflow in the foaming process, while improving the automation level and production efficiency of the foaming process, has become an urgent technical problem to be solved. Summary of the Invention

[0006] This invention provides an automotive foaming gun sleeve, foaming component, and application method thereof that are adaptable to industrial robots, can be quickly disassembled and assembled, are collision-resistant and deformation-resistant, and have excellent sealing performance.

[0007] The technical solution of this invention is as follows: A car foam gun holster, the holster being made of an elastic material; the holster includes a base band and a sleeve body; The baseband is elongated and the middle part of the baseband is connected to the sleeve. The sleeve includes a cylindrical section and a frustum section; the cylindrical section is located between the frustum section and the baseband. Mounting holes are provided at both ends of the baseband; the sleeve has an internal cavity.

[0008] The thickness of the sleeve is 2mm.

[0009] The ratio of the upper base radius to the lower base radius of the frustum segment is 0.3 to 0.6.

[0010] The elastic material is rubber.

[0011] The rubber is hydrogenated nitrile rubber, fluororubber, or EPDM rubber.

[0012] A foaming component, comprising a foaming gun and a gun holster; The foaming gun is an AB type foaming gun; the mounting hole of the gun sleeve is adapted to the shape of the throttle valve of the A and B materials of the foaming gun; the sleeve body is adapted to the shape of the gun head of the foaming gun, and the height of the sleeve body is less than the length of the gun head of the foaming gun.

[0013] The foaming component also includes fastening straps.

[0014] A method for applying a foamed component includes the following steps: S1: Install the foam gun on the industrial robot; S2: Install the holster body onto the gun head, and then install the two mounting holes of the holster baseband onto the throttle valves of material A and material B of the foam gun, respectively. S3: Using an industrial robot to insert a gun head with a holster into a process hole in a car. S4: Inject materials A and B into the car cavity using the foam gun according to the set ratio; S5: Clean the nozzle; S6: Inspect the appearance of the holster; S7: If undamaged, return to step S3; if damaged, remove the damaged holster and return to step S2.

[0015] The automotive foaming gun sleeve of this invention is fitted onto the gun head by a sleeve body. This wrap-around structure restricts the four-way freedom of movement of the sleeve in all directions (front, back, left, and right). The sleeve is also hung on the throttle valve of the foaming gun through the mounting hole of the baseband, restricting its two-way freedom of movement in the vertical direction. After installation, the sleeve and the foaming gun form a stable connection structure. The sleeve forms a circumferential soft contact buffer zone in the contact area between the gun head and the automotive process hole. This not only effectively solves the collision deformation problem that is prone to occur when hard objects collide in the foaming process, but also better seals the process hole and avoids overflow during the foaming process.

[0016] When the automotive foaming gun sleeve and foaming components of this invention are used in conjunction with industrial robots, they can not only improve the consistency and quality of the foaming process, but also significantly enhance the automation level and production efficiency of the foaming process, thus helping automobile manufacturers reduce costs and increase efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the automotive foam gun sleeve of the present invention; Figure 2 yes Figure 1 AA section view; Figure 3 This is a schematic diagram of the structure of the foaming component of the present invention; Figure 4 This is a flowchart illustrating the application method of the foaming component of the present invention.

[0018] In the diagram: 1-gun holster, 11-base band, 110-mounting hole, 12-sleeve body, 120-cavity; 2-foam gun, 21-gun head, 22-throttle valve; 3-fastening band. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 This further illustrates the present invention.

[0020] This invention discloses a car foam gun holster. The holster 1 is made of an elastic material. The holster 1 includes a base strip 11 and a sleeve body 12. The base strip 11 is elongated, and the sleeve body 12 is connected to the middle of the base strip 11. The sleeve body 12 includes a cylindrical section and a frustum section. The cylindrical section is located between the frustum section and the base strip 11. Both ends of the base strip 11 are provided with mounting holes 110 for hanging on the throttle valve 22 of the foam gun 2. The sleeve body 12 has an internal cavity 120 for fitting onto the nozzle 21 of the foam gun 2. The thickness of the sleeve body 12 is 2mm. The ratio of the upper base radius to the lower base radius of the frustum section is 0.3 to 0.6. The ratio of the upper and lower base radii is comprehensively considered based on the differences in the diameter of the process holes and the shape of the gun head 21. For example, when the difference in the diameter of the process holes to be foamed is large, the ratio of the upper and lower base radii can be selected as 0.3, while when the difference in the diameter of the process holes is small, the ratio of the upper and lower base radii can be selected as 0.6. At the same time, the tolerance of the shape of the gun head itself to the frustum with different upper and lower base radius ratios and the fit between the two are also considered. For example, when the upper base radius of the frustum is set to 60mm and the lower base radius to 125mm, the gun sleeve 1 can be used for process holes with a diameter of 120 to 250mm. This situation is compatible with most new energy vehicle foaming processes.

[0021] Considering the temperature requirements of the foaming process and the need for cleaning the gun after foaming, the material of the gun shroud 1 must possess characteristics such as heat resistance, corrosion resistance, wear resistance, and low mutual adhesion. The elastic material is preferably rubber. The rubber is preferably hydrogenated nitrile rubber, fluororubber, or EPDM rubber.

[0022] A foaming assembly, comprising a foaming gun 2 and a gun holster 1; like Figure 3 As shown, the foaming gun 2 is an AB type foaming gun; the mounting hole 110 of the gun sleeve 1 is adapted to the shape of the throttle valve 22 for materials A and B of the foaming gun 2. The throttle valves 22 are set in pairs and are used for flow control of materials A and B respectively. Figure 3 Another throttle valve 22 (not shown in the figure) is provided on the opposite side of the middle throttle valve 22. The sleeve 12 of the gun sleeve 1 is adapted to the shape of the nozzle 21 of the foam gun 2, and the height of the sleeve 12 is less than the length of the nozzle 21 of the foam gun 2.

[0023] The foaming assembly also includes a fastening band 3 for connecting the base band 11 to the body of the foaming gun 2, thereby improving the reliability of the connection between the two.

[0024] A method for applying a foamed component includes the following steps: S1: Install the foam gun on the industrial robot; S2: Install the holster body onto the gun head, and then install the two mounting holes of the holster baseband onto the throttle valves of material A and material B of the foam gun, respectively. S3: Using an industrial robot to insert a gun head with a holster into a process hole in a car. S4: Inject materials A and B into the car cavity using the foam gun according to the set ratio; S5: Clean the nozzle; S6: Inspect the appearance of the holster; S7: If undamaged, return to step S3 for the next round of foaming. If damaged, peel off the base tape of the holster from both throttle valves to remove the damaged holster; return to step S2, install a new holster, and proceed to the next round of foaming. When combined with industrial robots, the foaming process significantly reduces reliance on manual labor. Manual replacement of the holster is only required when damage is detected. The holster structure of this invention is ingenious, allowing for rapid disassembly and assembly, which will significantly improve the production efficiency of automobile manufacturing companies. Furthermore, when using lower-cost materials to manufacture the holster, it can be directly removed and replaced after each foaming cycle before proceeding to the next round of foaming, thus eliminating steps such as cleaning the gun head, making the production process simpler and more convenient.

[0025] The foaming component application method of the present invention is used for automated foaming processing in collaboration with industrial robots. According to experimental data, the foaming stability of the automated foaming process is greatly improved, no workpiece collision deformation defects are detected, and no incomplete foaming defects caused by overflow, which are common in traditional foaming processes, are detected. The average production efficiency is increased from 6 JPH to 20 JPH. In short, both foaming quality and foaming efficiency are significantly improved.

[0026] Regarding the content disclosed in this invention, the following points need to be explained: (1) The embodiments disclosed in this invention are merely examples, and the technical solutions implemented by other equivalent modifications fall within the scope of protection of this invention; (2) Where there is no conflict, the technical features disclosed in this invention can be combined with each other to obtain new embodiments; The above are merely specific embodiments disclosed in this invention, but the scope of protection of this disclosure is not limited thereto. Any technical solutions obtained by those skilled in the art after modifying or transforming certain technical features based on the content disclosed in this invention should be within the scope of protection of this invention.

Claims

1. A car foam gun holster, characterized in that, The holster is made of an elastic material; the holster includes a base band and a holster body; The baseband is elongated and the middle part of the baseband is connected to the sleeve. The sleeve includes a cylindrical section and a frustum section; the cylindrical section is located between the frustum section and the baseband. Mounting holes are provided at both ends of the baseband; the sleeve has an internal cavity.

2. The automotive foam gun holster according to claim 1, characterized in that, The thickness of the sleeve is 2mm.

3. The automotive foam gun holster according to claim 1, characterized in that, The ratio of the upper base radius to the lower base radius of the frustum segment is 0.3 to 0.

6.

4. The automotive foam gun holster according to claim 1, characterized in that, The elastic material is rubber.

5. A car foam gun holster according to claim 4, characterized in that, The rubber is hydrogenated nitrile rubber, fluororubber, or EPDM rubber.

6. A foaming assembly made using the automotive foaming gun shroud according to any one of claims 1-5, characterized in that, The foaming components include a foam gun and a holster; The foaming gun is an AB type foaming gun; the mounting hole of the gun sleeve is adapted to the shape of the throttle valve of the A and B materials of the foaming gun; the sleeve body is adapted to the shape of the gun head of the foaming gun, and the height of the sleeve body is less than the length of the gun head of the foaming gun.

7. A foaming component according to claim 6, characterized in that, The foaming component also includes fastening straps.

8. A method for applying a foaming component using the foaming component of claim 6, characterized in that, Includes the following steps: S1: Install the foam gun on the industrial robot; S2: Install the holster body onto the gun head, and then install the two mounting holes of the holster baseband onto the throttle valves of material A and material B of the foam gun, respectively. S3: Using an industrial robot to insert a gun head with a holster into a process hole in a car. S4: Inject materials A and B into the car cavity using the foam gun according to the set ratio; S5: Clean the nozzle; S6: Inspect the appearance of the holster; S7: If undamaged, return to step S3; if damaged, remove the damaged holster and return to step S2.

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