Surface accurate grinding and polishing device for automobile SMC exterior trimming parts

Abstract

The utility model relates to the technical field of automobile exterior trimming part surface treatment, and discloses an automobile SMC exterior trimming part surface accurate grinding and polishing device which comprises a liquid storage tank and a container, a pumping assembly is arranged between the liquid storage tank and the container, a plurality of ultrasonic devices are further arranged on the container, a fixing assembly is arranged in the container, and the ultrasonic devices are arranged on the container. The fixing assembly comprises a rotating frame used for fixing the fender, and the rotating frame can rotate horizontally. The fender is clamped through the clamping plate, the driving motor is used for driving the rotating frame to drive the fender to rotate so as to achieve surface changing of the fender, then grinding material suspension liquid is conveyed into the container through the circulating pump, flowing grinding material particles are used for washing the surface of the fender, and then accurate grinding and polishing of the surfaces of the fenders in different shapes are achieved. And the ultrasonic device is used for generating ultrasonic vibration to accelerate the action of abrasive particles on the surface of the workpiece, so that the more efficient polishing effect is achieved, and the effects of high polishing efficiency and high applicability are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of surface treatment of automobile exterior parts, and in particular to a surface fine grinding and polishing device for automobile SMC exterior parts. Background Art

[0002] In the automotive industry, SMC (Sheet Molding Compound) is widely used in the manufacture of automotive exterior parts due to its excellent mechanical properties, corrosion resistance, and formability. However, surface finishing and polishing is a critical and complex step in the production of SMC exterior parts. Currently, there are a variety of surface finishing and polishing devices on the market, most of which use traditional mechanical polishing or chemical polishing methods. While these methods can improve surface finish to a certain extent, they have the following significant disadvantages:

[0003] Traditional mechanical polishing methods often take a long time to achieve the ideal polishing effect, affecting production efficiency. Moreover, due to the different shapes of exterior parts, using a single grinding tool for polishing can easily lead to inconsistent surface polishing quality, affecting the appearance quality of the product. Chemical polishing methods require the use of a large amount of chemical reagents, which not only increases costs but also pollutes the environment. Utility Model Content

[0004] In order to solve the problems of low polishing efficiency, uneven polishing quality and high maintenance cost in existing SMC exterior parts, which mostly adopt traditional mechanical polishing or chemical polishing methods, the present application provides a surface fine grinding and polishing device for automotive SMC exterior parts.

[0005] The present application provides a surface finishing and polishing device for automotive SMC exterior parts, which adopts the following technical solutions:

[0006] A surface finishing and polishing device for automotive SMC exterior parts includes a liquid storage tank and a container. A pumping assembly is provided between the liquid storage tank and the container for conveying an abrasive suspension to the container. The container is also provided with several ultrasonic devices for generating ultrasonic vibrations to accelerate the action of abrasive particles on the surface of the fender. A fixing assembly is provided inside the container, and the fixing assembly includes a rotating frame for fixing the fender, and the rotating frame can rotate horizontally.

[0007] Preferably, a filter assembly is further provided between the liquid storage tank and the container, the filter assembly includes an on-off valve provided at the lower end of the container, the lower end of the on-off valve is connected to a filter, and the liquid outlet of the filter is connected to the liquid storage tank.

[0008] Preferably, the water outlet end of the pumping assembly is connected to the container, and the water pumping end of the pumping assembly is connected to the liquid storage tank.

[0009] Preferably, the rotating frame includes a rotating shaft rotatably arranged at the bottom of the container, a placement frame is arranged on the rotating shaft, and a plurality of clamps distributed in pairs are arranged on the placement frame, and the two clamps can move toward or away from each other for clamping and releasing the fender.

[0010] Preferably, the lower end of the rotating shaft passes through the container and is transmission-connected to a driving motor.

[0011] In summary, this application has the following beneficial technical effects:

[0012] Through the coordinated use of a container, a pumping assembly, an ultrasonic device, a fixing assembly, and a filtering assembly, the fender is clamped by a clamping plate, and a driving motor is used to drive a rotating frame to drive the fender to rotate, so as to realize the fender surface change, and then an abrasive suspension is transported into the container through a circulating pump, and the surface of the fender is flushed with flowing abrasive particles, thereby realizing fine grinding and polishing of the surfaces of fenders of different shapes. The ultrasonic device is used to generate ultrasonic vibrations to accelerate the action of abrasive particles on the surface of the workpiece, thereby achieving a more efficient polishing effect; compared with the existing technology, the method has the effects of high polishing efficiency and high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a first-perspective three-dimensional structure of an embodiment of the application;

[0014] Figure 2 is a schematic diagram of a second perspective three-dimensional structure of an embodiment of the application;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure from a third perspective of the embodiment of the application.

[0016] Explanation of the accompanying drawings: 1. Liquid storage tank; 2. Container; 3. Pumping assembly; 301. Circulation pump; 302. Flow guide tube; 4. Ultrasonic device; 5. Fixing assembly; 501. Rotating frame; 5011. Rotating shaft; 5012. Placement rack; 5013. Clamp; 5014. Screw; 502. Drive motor; 6. Filter assembly; 601. Filter; 602. Opening and closing valve. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 This application is described in further detail.

[0018] The present application discloses a surface finishing and polishing device for an automotive SMC exterior trim. Figure 1-3A surface finishing and polishing device for automotive SMC exterior parts includes a liquid storage tank 1 and a container 2, wherein the liquid storage tank 1 is used to store abrasive suspension, and the container 2 is used to hold the abrasive suspension. The size of the container 2 should be sufficient to accommodate the fender workpiece and ensure that the liquid is evenly distributed throughout the polishing process. A pumping assembly 3 is installed between the container 2 and the liquid storage tank 1. The pumping assembly 3 includes a circulating pump 301 with guide pipes 302 installed at both the liquid inlet and liquid outlet ends. The guide pipe 302 connected to the liquid inlet is connected to the interior of the liquid storage tank 1, and the guide pipe 302 connected to the liquid outlet is connected to the interior of the container 2. The abrasive suspension in the liquid storage tank 1 is extracted and transported to the container 2. It can be selected whether to add a diversion structure inside the container 2 as needed to achieve multi-nozzle discharge and expand the area of ​​spray polishing.

[0019] Reference Figure 2 Filter assembly 6 is mounted at the lower end of container 2. This assembly includes an on-off valve 602 mounted at the lower end of container 2. A filter 601 is connected to the lower end of valve 602. The outlet of filter 601 is connected to liquid reservoir 1. Filter 601 removes impurities generated during polishing, maintaining a stable abrasive concentration in the liquid. The abrasive suspension can be made of 800-1200 mesh silica or alumina powder, suitable for fine polishing without excessive wear on the SMC.

[0020] Reference Figure 3 , several ultrasonic devices 4 are also installed on the container 2. The ultrasonic device 4 can use an ultrasonic stirring head of a suitable type. The position of 4 can be installed on the bottom or side of 2. The ultrasonic stirring head generates ultrasonic vibration to accelerate the effect of abrasive particles on the fender surface.

[0021] Reference Figure 3 A fixing assembly 5 is installed inside the container 2, and the fixing assembly 5 includes a rotating frame 501 for fixing the fender. The rotating frame 501 includes a rotating shaft 5011 rotatably installed at the bottom of the container 2, and a placement frame 5012 is installed on the rotating shaft 5011. A plurality of clamps 5013 distributed in pairs are installed on the placement frame 5012, and a screw 5014 is rotatably installed on the side of the two opposite clamps 5013 away from each other, and the end of the screw 5014 is threaded through the placement frame 5012. By adjusting the screw 5014, the two opposite placement frames 5012 can be moved toward or away from each other to achieve the clamping and release of the fender. The lower end of the rotating shaft 5011 passes through the container 2 and is transmission-connected to the drive motor 502. The driving motor 502 drives the rotating shaft 5011 to rotate with the placement frame 5012 to achieve the subsequent rotation of the fender.

[0022] The implementation principle of the surface fine grinding and polishing device for automotive SMC exterior parts in the embodiment of the present application is as follows: First, an appropriate amount of abrasive suspension, usually a mixture of 800-1200 mesh silica or alumina powder and water, is injected into the liquid storage tank 1 to ensure that the liquid level is appropriate.

[0023] The automotive SMC exterior parts to be polished, such as fenders, are placed on the placement rack 5012 of the container 2, and the workpiece is clamped by adjusting the screw 5014 on the clamping plate 5013 to ensure that it is stable and does not shake during the polishing process.

[0024] The circulation pump 301 is started to pump the abrasive suspension from the liquid storage tank 1 through the guide pipe 302 at the liquid inlet end and transport the abrasive suspension to the container 2 through the guide pipe 302 at the liquid outlet end. If a diversion structure is provided in the container 2, the abrasive suspension will be evenly distributed on the workpiece surface through the multiple nozzles, expanding the polishing area.

[0025] The abrasive suspension contacts the workpiece surface within container 2, where it is finely polished by the friction of the abrasive. During the polishing process, the drive motor 502 drives the rotating shaft 5011, which rotates the placement rack 5012 and the workpiece, ensuring that all areas of the workpiece surface are evenly polished by the abrasive suspension, further improving polishing uniformity and efficiency.

[0026] At the same time, the ultrasonic device 4 is started, and the ultrasonic stirring head generates high-frequency vibration in the container 2, accelerating the impact and friction of the abrasive particles on the workpiece surface, thereby improving the polishing efficiency and effect.

[0027] Impurities and abrasive particles generated during the polishing process flow back to the bottom of the container 2 along with the abrasive suspension. The on-off valve 602 is opened, and the abrasive suspension enters the filter 601 to intercept impurities and re-enters the liquid storage tank 1, thus realizing the recycling of the abrasive suspension.

[0028] When the polishing reaches the desired effect, turn off all equipment and remove the workpiece for subsequent processing (such as cleaning, drying, etc.).

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0030] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0032] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A surface finishing and polishing device for automotive SMC exterior parts, comprising a liquid storage tank (1) and a container (2), characterized in that: A pumping assembly (3) is provided between the liquid storage tank (1) and the container (2) for conveying abrasive suspension to the container (2); a plurality of ultrasonic devices (4) are also provided on the container (2) for generating ultrasonic vibrations to accelerate the action of abrasive particles on the surface of the fender; a fixing assembly (5) is provided inside the container (2); the fixing assembly (5) comprises a rotating frame (501) for fixing the fender, and the rotating frame (501) is horizontally rotatable.

2. The surface finishing and polishing device for automotive SMC exterior parts according to claim 1, characterized in that: A filter assembly (6) is further provided between the liquid storage tank (1) and the container (2), the filter assembly (6) comprising an on-off valve (602) provided at the lower end of the container (2), the lower end of the on-off valve (602) being connected to a filter (601), the liquid outlet of the filter (601) being in communication with the liquid storage tank (1).

3. The surface finishing and polishing device for automotive SMC exterior parts according to claim 1, characterized in that: The water outlet end of the pumping assembly (3) is in communication with the container (2), and the water extraction end of the pumping assembly (3) is in communication with the liquid storage tank (1).

4. The surface finishing and polishing device for automotive SMC exterior parts according to claim 1, characterized in that: The rotating frame (501) includes a rotating shaft (5011) rotatably arranged at the bottom of the container (2), a placement frame (5012) is arranged on the rotating shaft (5011), and a plurality of (clamping plates 5013) distributed in pairs are arranged on the placement frame (5012), and the two (clamping plates 5013) can move toward or away from each other to clamp and release the fender.

5. The surface finishing and polishing device for automotive SMC exterior parts according to claim 4, characterized in that: The lower end of the rotating shaft (5011) passes through the container (2) and is transmission-connected to a driving motor (502).

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