A device and method for removing particles from the outer surface of a vehicle body front hood

Abstract

The application discloses a device and method for removing particles on the outer surface of a front hood of a vehicle body, which comprises a main frame, one end of a connecting part connected to the upper part of the main frame, and the other end of the connecting part being detachably connected to the inner surface of the hood; one end of a mounting part connected to the lower part of the main frame, and the other end of the mounting part being detachably connected to a water tank beam, and a fixing part being detachably connected between the bottom end of the main frame and the water tank beam; the device can make the hood pass through a cleaning tank or an electrophoresis tank in an open state, which is beneficial to the vehicle body to flow out of the tank body, and the liquid in the vehicle body room can quickly flow out of the gap between the end of the hood and the instrument desk, so that the liquid in the vehicle body room is prevented from flowing to the surface of the hood; when the vehicle body flows to the parallel state on the ground, the hood keeps an elevation angle, and the impurities on the surface of the hood can be effectively cleaned in the cleaning process.

Description

Technical Field

[0001] This invention relates to the technical field of tooling and fixtures for pretreatment cleaning and electrophoresis processes in the automotive industry, specifically to a device and method for removing particles from the outer surface of the front hood of a car body. Background Technology

[0002] In vehicle production, before painting the body-in-white, pre-treatment is required. This includes cleaning processes to remove contaminants such as dirt, rust, scale, dust, molding sand, welding slag, and salt stains from the body-in-white surface; and chemically generating a non-metallic conversion film to enhance the coating's corrosion resistance, ensuring good anti-corrosion and decorative properties. In actual production, foreign objects on the body remain in the cleaning tank during the cleaning process. After cleaning, the body-in-white enters an electrophoresis tank for electrophoresis. Electrophoresis involves immersing the conductive substrate in a low-concentration electrophoretic coating solution diluted with water as the anode, with the body acting as the corresponding cathode (CED). A direct current is applied between the electrodes for a certain period, resulting in the deposition of a uniform, water-insoluble coating film on the substrate. Figure 1 The image shows the cleaning state of the vehicle body entering and exiting the cleaning tank; the electrophoresis tank is similar to the cleaning tank, and the state of the vehicle body entering and exiting the electrophoresis tank is similar to that of entering and exiting the cleaning tank.

[0003] like Figure 2 As shown, a gap 51 exists between the end of the hood and the dashboard of a certain car model's body-in-white. The gap 51 is approximately 100 mm. Figure 2 The arrows indicate the direction of liquid flow; with the hood closed, most of the liquid will drain from the hood surface; for example... Figure 1 As shown, when the white body enters the cleaning tank or electrophoresis tank, the body enters from the rear first for processing, with the entry and exit angles forming a 30° angle with the ground. If the hood is closed when entering or exiting the cleaning or electrophoresis tank, impurities in the liquid will accumulate on the hood surface during the cleaning and electrophoresis process because the hood is essentially horizontal to the ground when closed. When the body exits the cleaning or electrophoresis tank, the 100mm gap between the hood end and the dashboard is too small, causing impurities in the body compartment to accumulate. If the liquid inside cannot drain quickly through the gaps, it will drain from the surface of the hood. Since the hood is almost level with the ground, it is not conducive to the flow of liquid on the hood surface. The liquid flow rate will slow down, and impurities in the liquid, such as iron powder and iron slag, will accumulate on the surface of the hood. After electrophoresis and drying, they will form raised particles in the electrophoretic paint of the hood, affecting the overall quality pass rate of the vehicle. If the raised particles are polished, particles and other foreign objects will be generated again during the polishing process. Moreover, polishing will lead to secondary repairs with poor quality, weakening the functional quality assurance capability of the hood surface. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and method for removing particles from the outer surface of a vehicle's front hood.

[0005] To achieve the above objectives, the technical solution of this invention is as follows:

[0006] A device for removing particles from the outer surface of a vehicle's front hood includes a main frame, with a connecting part connected to one end of the upper part of the main frame and the other end of the connecting part being detachably connected to the inner surface of the hood; a mounting part is connected to one end of the lower part of the main frame and the other end of the mounting part being detachably connected to a water tank crossbeam; and a fixing part is detachably connected between the bottom end of the main frame and the water tank crossbeam.

[0007] Furthermore, the main frame includes an upper horizontal beam, a left vertical beam, a right vertical beam, a middle horizontal beam, and a lower horizontal beam; the upper horizontal beam, the left vertical beam, the right vertical beam, and the lower horizontal beam are connected to form a rectangular body, and the middle horizontal beam is connected between the left vertical beam and the right vertical beam.

[0008] Furthermore, the connecting portion includes a first support portion, a second support portion, and a third support portion;

[0009] One end of the first support part is fixedly connected to the upper part of the left vertical beam, and the other end is fixedly connected to the first base. The first support rod is fixed on the first base, and the first support rod is used to provide support for the machine cover.

[0010] One end of the second support is fixedly connected to the upper part of the right vertical beam, and the other end is fixedly connected to a second base, on which a second support rod is fixed; the second support rod is used to provide support for the machine cover.

[0011] The third support is fixed to the upper crossbeam.

[0012] Furthermore, the third support includes a handle, a U-shaped safety bolt, a semi-enclosed box, multiple nuts, a semi-enclosed box diagonal brace, a semi-enclosed box main support, a base plate, and a columnar body;

[0013] The semi-enclosed box is a rectangular body with an open top. Both the semi-enclosed box and the column are fixed to the upper surface of the base plate. The length of the base plate is longer than the length of the semi-enclosed box. After the semi-enclosed box is placed on the base plate, the column is set in the empty space on the upper surface of the base plate. The column is located outside the semi-enclosed box.

[0014] One end of the main support of the semi-enclosed box is connected to the base plate, and the other end is fixed to the upper crossbeam; one end of the diagonal brace of the semi-enclosed box is connected to the main support of the semi-enclosed box, and the other end is connected to the base plate.

[0015] Furthermore, the semi-enclosed box includes a first side, a second side, and a third side, with the first side and the second side facing each other, and the third side connecting the first side and the second side; the columnar body is located on the outside of the third side.

[0016] The semi-enclosed box has circular through holes on both its first and second sides, with the through holes on the first and second sides facing each other; the cylindrical body is hollow inside, and the hollow part is cylindrical.

[0017] The U-shaped safety bolt includes a first vertical end, a second vertical end, and a bottom end. Both the first and second vertical ends are cylindrical, the second vertical end is longer than the first vertical end, and a handle is connected to the bottom end.

[0018] With the nuts not installed at the top of the first and second vertical ends, the U-shaped safety bolt can be moved forward or backward along the semi-enclosed box and column by pushing forward or pulling backward with the handle.

[0019] Furthermore, the inner surface of the hood is connected to a U-shaped buckle, the semi-enclosed box is used to accommodate the U-shaped buckle, and the U-shaped safety bolt is used to lock the buckle in place within the semi-enclosed box.

[0020] Furthermore, the installation part includes a lower left support and a lower right support. One end of the lower left support is fixedly connected to the lower part of the left vertical beam, and the other end is provided with a first C-shaped support groove. One end of the lower right support is fixedly connected to the lower part of the right vertical beam, and the other end is provided with a second C-shaped support groove. The first C-shaped support groove and the second C-shaped support groove are used to be clamped on the water tank crossbeam.

[0021] Furthermore, the fixing part includes a positioning pin that connects the lower crossbeam and the water tank crossbeam, and the positioning pin is detachably connected to the water tank crossbeam.

[0022] Furthermore, the fixing part also includes an L-shaped hook, which includes a vertical part and a horizontal part; the vertical part is fixedly connected to the lower crossbeam, and the horizontal part is close to the lower surface of the water tank crossbeam to hook the water tank crossbeam.

[0023] The top of the vertical section is equipped with a pressing handle. The vertical section consists of an upper part and a lower part, which are rotatably connected. Pressing the pressing handle at the top of the vertical section causes the lower part of the vertical section to rotate away from the machine cover. The rotation of the lower part causes the horizontal section to separate from the water tank beam and no longer hook onto the water tank beam.

[0024] A method for removing particles from the outer surface of a vehicle hood using the aforementioned apparatus for removing particles from the outer surface of a vehicle hood:

[0025] Open the machine cover and secure both the first C-shaped support groove and the second C-shaped support groove onto the water tank crossbeam. Horizontally adjust the position of the device along the water tank crossbeam so that the U-shaped latch on the inner surface of the machine cover can fall into the semi-enclosed box. At the same time, position the spherical top of the first support rod in the circular groove on the anti-collision plug protrusion on one side of the inner surface of the machine cover, and position the spherical top of the second support rod in the circular groove on the anti-collision plug protrusion on the other side of the inner surface of the machine cover.

[0026] The positioning pin is fixed between the lower crossbeam and the water tank crossbeam, and the lock located in the semi-enclosed box is locked by the U-shaped safety bolt. The vehicle body passes through the cleaning tank and electrophoresis tank with the hood open.

[0027] After the cleaning or electrophoresis process is completed, the device is removed from the vehicle body.

[0028] The beneficial effects of this invention are:

[0029] 1. In the prior art, during the cleaning and electrophoresis process of the vehicle body, the hood is closed, and the hood is at a 30° angle to the ground when the vehicle body enters and exits the cleaning tank and electrophoresis tank; after the vehicle body is completely out of the tank, the hood is almost parallel to the ground, and the liquid flow on the surface of the hood is slow; in the present invention, during the cleaning and electrophoresis process of the vehicle body, the hood is open, with the hood opened at a 45° angle relative to the plane where the engine compartment is located, and then during the vehicle body entering and exiting the cleaning tank and electrophoresis tank, the hood is at a 75° angle to the ground, the hood is higher than the liquid level in the tank, and after the vehicle body is completely out of the tank, the hood is kept at a 45° angle to the ground;

[0030] When the hood is closed, due to the small gap between the hood and the instrument panel, a large amount of liquid inside the body-in-white cannot be quickly drained from the gap during cleaning or electrophoresis, and will flow to the surface of the hood. When the body moves to the ground plane, impurities in the liquid will accumulate on the surface of the hood. When the hood is opened using the device of this invention, the gap between the hood and the instrument panel will increase when the body moves out of the tank, which is conducive to the liquid inside the body flowing out quickly from the gap and preventing the liquid inside the body from flowing to the surface of the hood. When the body moves to the ground parallel, the hood maintains an upward angle, which can effectively clean the impurities on the surface of the hood during the cleaning process.

[0031] 2. The engine cover is supported by the first support part, the second support part, and the third support part. The first support part and the second support part are at the same horizontal height. When the car body enters the washing or electrophoresis tank, the engine cover and the front water tank bracket maintain a certain opening. When the pretreatment high-flow water washing spray is applied, it is ensured that the engine cover will not be twisted or deformed due to uneven force. After the car body enters the electrophoresis tank, the inner surface of the engine cover is ensured to form a certain angle with the electrophoresis liquid surface, so that the air on the inner surface of the engine cover can be discharged in time to prevent the electrophoresis air chamber from being damaged.

[0032] 3. The device and method of the present invention can be reused repeatedly, and the particle removal effect is obvious. Compared with the traditional 30° discharge method, the number of particles per machine is reduced by 40 to 50, which lays a good foundation for producing high-performance electrophoretic car bodies. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a machine cover in the closed state passing through a cleaning tank or electrophoresis tank.

[0034] Figure 2 This is a schematic diagram of the liquid flow direction when the hood of a conventional machine is closed.

[0035] Figure 3 This is a schematic diagram of the present invention;

[0036] Figure 4 This is a schematic diagram of the main framework of the present invention.

[0037] Figure 5 This is a schematic diagram of the present invention.

[0038] Figure 6 This is a schematic diagram of the connection part of the present invention.

[0039] Figure 7 This is a schematic diagram of the third support section of this invention.

[0040] Figure 8 This is a schematic diagram of the mounting part of the present invention.

[0041] Figure 9 This is a schematic diagram of the present invention.

[0042] Figure 10 This is a schematic diagram of the present invention.

[0043] Figure 11 This is a schematic diagram of the fixing part of the present invention.

[0044] Figure 12 This is a schematic diagram of the L-shaped hook of the present invention hooking onto the crossbeam of the water tank.

[0045] Figure 13 This is a schematic diagram showing the separation of the horizontal part of the L-shaped hook from the crossbeam of the water tank in this invention.

[0046] Figure 14 This is a schematic diagram of a U-shaped latch installed on the cover of the present invention.

[0047] Figure 15 This is a schematic diagram of the machine cover of the present invention passing through a cleaning tank or electrophoresis tank in the open state.

[0048] Figure 16 This is a schematic diagram showing the locked state of the U-shaped latch on the cover of the present invention, which is fixed in a semi-enclosed box.

[0049] Figure 17 This is a diagram showing the locking mechanism of the latch and the U-shaped safety bolt of the present invention.

[0050] Figure 18 This is a schematic diagram showing the liquid flow direction when the cover of the present invention is in the open state.

[0051] Figure 19 This is a schematic diagram comparing the liquid flow direction when the cover of the present invention is closed and open.

[0052] Figure 19 (a) is a schematic diagram of the liquid flow direction when the hood of the prior art is closed.

[0053] Figure 19 (b) is a schematic diagram of the liquid flow direction when the cover of the present invention is in the open state.

[0054] Figure 20 Relationship between the height of the machine cover and the number of particles.

[0055] The structure includes: main frame 1; upper horizontal beam 11; left vertical beam 12; right vertical beam 13; middle horizontal beam 14; and lower horizontal beam 15.

[0056] Connecting part 2; First support part 21; First base 211; First support rod 2111; Second support part 22; Second base 221; Second support rod 2211; Third support part 23; Handle 231; Safety bolt 232; First vertical end 2321; Second vertical end 2322; Semi-enclosed box body 233; First side 2331; Second side 2332; Third side 2333; Nut 234; Semi-enclosed box body diagonal brace 235; Semi-enclosed box body main support 236; Base plate 237; Columnar body 238;

[0057] Mounting part 3; Lower left support 31; First C-shaped support groove 311; Lower right support 32; Second C-shaped support groove 321;

[0058] Fixed part 4; Positioning pin 41; L-shaped hook 42; Vertical part 421; Horizontal part 422;

[0059] 5; gap 51;

[0060] 6. Water tank crossbeam; 7. Lock; 8. Upper hook; 9. Lower hook. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0062] A device for removing particles from the outer surface of a vehicle's front hood, the device comprising a main frame 1, a connecting part 2 detachably connected to the inner surface of the hood, a mounting part 3 detachably connected to a radiator crossbeam, and a fixing part 4 for securely fixing the device to the radiator crossbeam 6; in the prior art, the radiator crossbeam is used to hang the engine radiator, and when the hood 5 is closed, the radiator crossbeam 6 also supports the hood 5.

[0063] The main frame 1 is a rectangular body, including an upper horizontal beam 11, a left vertical beam 12, a right vertical beam 13, a middle horizontal beam 14, and a lower horizontal beam 15; as shown Figure 3 , Figure 4 and Figure 5 As shown, the upper horizontal beam 11, the left vertical beam 12, the right vertical beam 13, and the lower horizontal beam 15 are connected to form a rectangular body, and the middle horizontal beam 14 is connected between the left vertical beam 12 and the right vertical beam 13.

[0064] like Figure 6 , Figure 7 As shown, the connecting part 2 includes a first support part 21, a second support part 22, and a third support part 23.

[0065] One end of the first support part 21 is fixedly connected to the upper part of the left vertical beam 12, and the other end is fixedly connected to the first base 211, on which the first support rod 2111 is welded and fixed.

[0066] One end of the second support part 22 is fixedly connected to the upper part of the right vertical beam 13, and the other end is fixedly connected to the second base 221. The second support rod 2211 is welded and fixed on the second base 221.

[0067] Both the first support part 21 and the second support part 22 are elongated strips; the first support part 21 is connected to the left vertical beam 12 at a certain angle, and one end of the second support part 22 is connected to the right vertical beam 13 at a certain angle. The first support part 21 and the second support part 22 are symmetrically arranged on both sides of the main frame 1; the top of the first support rod 2111 and the second support rod 2211 are both spherical.

[0068] The third support 23 is fixed to the upper crossbeam 11 by a support rod; as shown Figure 7 As shown, the third support part 23 includes a handle 231, a U-shaped safety bolt 232, a semi-enclosed box 233, a nut 234, a semi-enclosed box diagonal brace 235, a semi-enclosed box main support 236, a base plate 237, and a column 238.

[0069] The semi-enclosed box 233 is a rectangular body with an open top surface. Both the semi-enclosed box 233 and the column 238 are fixed on the upper surface of the base plate 237. The length of the base plate 237 is longer than the length of the semi-enclosed box 233. After the semi-enclosed box 233 is placed on the base plate 237, the column 238 is provided in the empty position on the upper surface of the base plate 237. The column 238 is located outside the semi-enclosed box 233.

[0070] The semi-enclosed box 233 includes a first side 2331, a second side 2332, and a third side 2333. The first side 2331 and the second side 2332 are arranged opposite to each other, and the third side 2333 is connected between the first side 2331 and the second side 2332. The columnar body 238 is located outside the third side 2333, close to or near the outer surface of the third side 2333.

[0071] Both the first side 2331 and the second side 2332 of the semi-enclosed box 233 are provided with circular through holes, and the through holes on the first side 2331 and the second side 2332 are arranged opposite to each other; the columnar body 238 is hollow inside, and the hollow part is cylindrical.

[0072] The U-shaped safety bolt 232 includes a first vertical end 2321, a second vertical end 2322 and a bottom end. Both the first vertical end 2321 and the second vertical end 2322 are cylindrical. The second vertical end 2322 is longer than the first vertical end 2321. A handle 231 is connected to the bottom end.

[0073] One end of the semi-enclosed box main support 236 is connected to the base plate 237, and the other end is fixed to the upper crossbeam 11; one end of the semi-enclosed box diagonal brace 235 is connected to the semi-enclosed box main support 236, and the other end is connected to the base plate 237. The semi-enclosed box diagonal brace 235, the semi-enclosed box main support 236, and the base plate 237 are connected to form a triangle to provide stable support for the third support part 23.

[0074] When the nuts 234 are not installed at the top of the first vertical end 2321 and the second vertical end 2322, the U-shaped safety bolt 232 can be moved forward or backward along the semi-enclosed box 233 and the column 238 by pushing forward or pulling backward with the handle 231. The U-shaped safety bolt 232 can be connected to or disconnected from the semi-enclosed box 233.

[0075] like Figure 7As shown, when the U-shaped safety bolt 232 is connected to the semi-enclosed box 233, and the nuts 234 are not installed at the top of the first vertical end 2321 and the second vertical end 2322, pushing the handle 231 causes the top of the first vertical end 2321 of the U-shaped safety bolt 232 to pass through the through holes on the first side 2331 and the second side 2332 in sequence. Simultaneously, the second vertical end 2322 passes through the hollow interior of the columnar body 238 and extends from the top of the columnar body 238. After the top of the first vertical end 2321 extends from the through hole on the second side 2332 and the top of the second vertical end 2322 extends from the columnar body 238, nuts 234 are installed at the top of the first vertical end 2321 and the second vertical end 2322. After the nut 234 at the top of the first vertical end 2321 is tightened, it fits tightly against the second side 2332. The nut 234 secures the first vertical end 2321... The U-shaped safety bolt 232 is firmly fixed to the second side 2332. The nut 234 prevents the U-shaped safety bolt 232 from falling off the semi-enclosed box 233. At this time, pulling or pushing the handle 231 will not make the U-shaped safety bolt 232 move forward or backward along the semi-enclosed box 233 and the column 238. At this time, the U-shaped safety bolt 232 and the semi-enclosed box 233 are firmly fixed. When it is necessary to separate the U-shaped safety bolt 232 from the semi-enclosed box 233, remove the nut 234 from the top of the first vertical end 2321 and the second vertical end 2322, and pull the handle 231 backward. The U-shaped safety bolt 232 moves along the semi-enclosed box 233 and the column 238 towards the handle 231. The top of the first vertical end 2321 exits the through hole on the second side 2332 and the first side 2331 in sequence, realizing the separation of the U-shaped safety bolt 232 from the semi-enclosed box 233.

[0076] like Figure 8 As shown, the mounting part 3 includes a lower left support 31 and a lower right support 32. One end of the lower left support 31 is fixedly connected to the lower part of the left vertical beam 12, and the other end is provided with a first C-shaped support groove 311. One end of the lower right support 32 is fixedly connected to the lower part of the right vertical beam 13, and the other end is provided with a second C-shaped support groove 321.

[0077] like Figure 9 and Figure 10 As shown, the first C-shaped support groove 311 and the second C-shaped support groove 321 are both engaged on the water tank crossbeam 6, realizing the connection between the lower left support 31 and the lower right support 32 and the water tank crossbeam 6; in order to firmly fix the device of the present invention to the water tank crossbeam 6 and prevent the lower left support 31 and the lower right support 32 from falling off the water tank crossbeam 6, a fixing part 4 is provided to firmly fix the device of the present invention to the water tank crossbeam 6.

[0078] like Figure 11As shown, the fixing part 4 includes a positioning pin 41 that connects the lower crossbeam 15 and the water tank crossbeam 6. Both the lower crossbeam 15 and the water tank crossbeam 6 are provided with process holes. The bottom end of the positioning pin 41 passes through the process hole on the lower crossbeam 15 and then extends into the process hole on the water tank crossbeam 6.

[0079] To prevent the lower left support 31 and the lower right support 32 from falling off the water tank beam 6 during the cleaning or electrophoresis process, and to prevent the positioning pin 41 from separating from the water tank beam 6 during the cleaning or electrophoresis process, the present invention provides two methods.

[0080] The first method involves the bottom end of the positioning pin 41 passing through the process hole on the lower crossbeam 15 and then through the process hole on the water tank crossbeam 6. A nut is then installed at the bottom end of the positioning pin 41. After tightening the nut, it adheres tightly to the bottom surface of the water tank crossbeam, thus firmly fixing the positioning pin 41 to the water tank crossbeam 6. The positioning pin 41 and the water tank crossbeam 6 achieve relative positional stability through the positioning pin 41 and the nut, preventing the lower left support 31 and the lower right support 32 from falling off the water tank crossbeam 6 during cleaning or electrophoresis, and preventing the positioning pin 41 from separating from the water tank crossbeam 6 during cleaning or electrophoresis. If it is necessary to separate the device of the present invention from the water tank crossbeam 6, loosen the nut at the bottom end of the positioning pin 41 and pull the positioning pin 41 upwards to separate the positioning pin 41 from the process hole on the water tank crossbeam 6, thus achieving the first The C-shaped support groove 311 and the second C-shaped support groove 321 are no longer stuck on the water tank crossbeam, thus allowing the device of the present invention to be separated from the water tank crossbeam 6. The problems with fixing the positioning pin 41 to the water tank crossbeam 6 with nuts are as follows: First, the car body is mass-produced, and ease of operation must be considered, with operations completed within the specified production cycle. When the device of the present invention needs to be installed on or removed from the water tank crossbeam 6, the nuts need to be repeatedly installed and removed, which is time-consuming. Second, installing or removing the nuts at the bottom of the positioning pin 41 requires personnel to bend over or kneel, making it impossible to stand and visually inspect the work, which is not ergonomically sound. Third, since the entire device of the present invention needs to enter the electrophoresis tank for electrophoresis along with the car body, and baking is required after electrophoresis, the nuts may stick to the positioning pin 41, making disassembly difficult and increasing the workload.

[0081] Considering the problems with the first method, the second method provided by the present invention is that the fixing part 4 further includes an L-shaped hook 42; the bottom end of the positioning pin 41 passes through the process hole on the lower crossbeam 15, then extends into the process hole on the water tank crossbeam 6, and hooks onto the water tank crossbeam 6 through the L-shaped hook 42; in this case, the process hole on the lower crossbeam 15 is a through hole, and the process hole on the water tank crossbeam 6 only needs to be a groove that can accommodate the positioning pin 41, and the bottom end of the positioning pin 41 does not need to extend out of the process hole on the water tank crossbeam 6; Figure 11As shown, the L-shaped hook 42 includes a vertical part 421 and a horizontal part 422. The vertical part 421 is fixedly connected to the lower crossbeam 15 by screws, and the horizontal part 422 is close to the lower surface of the water tank crossbeam 6 to hook the water tank crossbeam 6, thereby stabilizing the relative position between the lower crossbeam 15 and the water tank crossbeam 6 and preventing the lower left support 31 and the lower right support 32 from falling off the water tank crossbeam 6 during cleaning or electrophoresis.

[0082] like Figure 12 and Figure 13 As shown, a pressing handle is provided at the top of the vertical part 421. The vertical part 421 is divided into an upper part and a lower part, which are rotatably connected. When the pressing handle at the top of the vertical part 421 is pressed, the lower part of the vertical part 421 rotates away from the machine cover. The rotation of the lower part causes the horizontal part 422 to separate from the water tank crossbeam 6 and no longer hooks onto the water tank crossbeam 6. At this time, if the pressing handle at the top of the vertical part 421 is released, the lower part of the vertical part 421 returns to its original position and rotates towards the machine cover. The rotation of the lower part causes the horizontal part 422 to hook onto the water tank crossbeam 6 again.

[0083] In the prior art, anti-collision plugs are symmetrically arranged on the left and right sides of the inner surface of the cover 5, and there are circular grooves on the protrusions of the anti-collision plugs on both sides.

[0084] like Figure 14 As shown, the inner surface of the cover 5 of the present invention is connected with a U-shaped buckle 7.

[0085] In existing technology, the vehicle body passes through a cleaning tank and an electrophoresis tank with the hood closed; such as Figure 15 As shown, the vehicle body passes through the cleaning tank and electrophoresis tank with the hood open using the device of the present invention as follows:

[0086] One end of the device of the present invention is connected to the water tank crossbeam 6, and the other end is connected to the inner surface of the machine cover 5. The way to connect one end of the device of the present invention to the water tank crossbeam 6 is to open the machine cover 5 and lock the first C-shaped support groove 311 and the second C-shaped support groove 321 onto the water tank crossbeam 6. The position of the device of the present invention can be adjusted horizontally along the water tank crossbeam 6 so that when the machine cover 5 is supported by the device of the present invention, the U-shaped buckle 7 on the inner surface of the machine cover 5 can fall into the semi-enclosed box 233, and at the same time, the spherical top end of the first support rod 2111 is located on one side. The first support rod 2211 is located in the circular groove on the anti-collision plug protrusion on the other side, and the spherical top of the second support rod 221 is located in the circular groove on the anti-collision plug protrusion on the other side, so as to support the machine cover 5 through the first support part 21 and the second support part 22. The first base 211 and the second base 221 are essentially platforms parallel to the inner surface of the machine cover. Without the first base 211 and the second base 221, it would be difficult to accurately place the first support rod 2111 and the second support rod 2211 in the circular groove on the anti-collision plug protrusion of the machine cover to support the machine cover.

[0087] When the first C-shaped support groove 311 and the second C-shaped support groove 321 are both engaged on the water tank crossbeam 6, the U-shaped latch 7 falls into the semi-enclosed box 233, and the spherical top of the first support rod 2111 is located in the circular groove on the anti-collision plug protrusion on one side, and the spherical top of the second support rod 2211 is located in the circular groove on the anti-collision plug protrusion on the other side, the positioning pin 41 is firmly fixed between the lower crossbeam 15 and the water tank crossbeam 6. At the same time, the U-shaped safety bolt 232 locks the latch 7 located in the semi-enclosed box 233, so that the latch 7 is fixed in the semi-enclosed box 233. Then the hood can be opened by the device of the present invention, so that the vehicle body passes through the washing tank and the electrophoresis tank with the hood open. The locked state of the latch 7 fixed in the semi-enclosed box 233 is as follows: Figure 16 and Figure 17 As shown.

[0088] The positioning pin 41 is securely fixed between the lower crossbeam 15 and the water tank crossbeam 6. This can be achieved by having the bottom end of the positioning pin 41 pass through the process hole on the lower crossbeam 15 and then out through the process hole on the water tank crossbeam 6, and finally by installing a nut at the bottom end of the positioning pin 41. However, in a preferred embodiment, the bottom end of the positioning pin 41 passes through the process hole on the lower crossbeam 15 and then extends into the process hole on the water tank crossbeam 6, where it is hooked onto the water tank crossbeam 6 by an L-shaped hook 42, thus securing the positioning pin 41 securely between the lower crossbeam 15 and the water tank crossbeam 6.

[0089] The locking mechanism of the latch 7 located inside the semi-enclosed box 233 via the U-shaped safety bolt 232 is as follows: Before the U-shaped latch 7 falls into the semi-enclosed box 233, pull the handle 231 to separate the first vertical end 2321 from the semi-enclosed box 233. When both the first C-shaped support groove 311 and the second C-shaped support groove 321 are engaged on the water tank crossbeam 6, adjust the position of the device along the water tank crossbeam 6 left and right to allow the latch 7 to fall into the semi-enclosed box 233. Push the handle 231 so that the top of the first vertical end 2321 of the U-shaped safety bolt 232 passes through the through holes on the first side 2331 and the second side 2332 in sequence. Then, install nuts 234 on the top of both the first vertical end 2321 and the top of the second side 2332 of the U-shaped safety bolt 232. At this time, the first vertical end 2321 of the U-shaped safety bolt 232 and the bottom end of the U-shaped latch 7 are aligned. Figure 17 The locked state is shown.

[0090] When both the first C-shaped support groove 311 and the second C-shaped support groove 321 are engaged on the water tank crossbeam 6, in order to prevent the first C-shaped support groove 311 and the second C-shaped support groove 321 from sticking together with the vehicle body water tank crossbeam and becoming unremovable after the electrophoresis is completed and baked, a 0.5 mm movable gap can be set between the first C-shaped support groove 311 and the second C-shaped support groove 321 and the vehicle body water tank crossbeam.

[0091] The device of this invention supports the hood, allowing the vehicle body to enter and exit the cleaning tank or electrophoresis tank with the hood open. The vehicle body can undergo cleaning or electrophoresis while the hood is open. Figure 2 , Figure 19 As shown in (a), when the hood is closed, due to the small gap between the hood and the instrument panel, a large amount of liquid inside the body-in-white cannot quickly drain out through gap 51 during cleaning or electrophoresis, and will flow onto the surface of the hood; when the body moves to the ground plane, impurities in the liquid will accumulate on the surface of the hood; such as Figure 18 , Figure 19 As shown in (b). Figure 18 The middle arrow indicates the direction of liquid flow. When the hood is raised: When the hood 5 is raised and opened using the device of this invention, the gap between the hood and the dashboard will increase when the vehicle body exits the tank. This facilitates the rapid flow of liquid from the vehicle body interior through the gap 51 when the vehicle body exits the tank, preventing liquid from flowing to the surface of the hood. When the vehicle body flows to a parallel position to the ground, the hood maintains an upward angle, which can effectively clean the impurities on the surface of the hood during the cleaning process.

[0092] like Figure 20 As shown, verification shows that the higher the machine cover is supported, the fewer particles are on the outer surface of the cover after electrophoresis; compared with the traditional 30° discharge method, the number of particles per machine is reduced by 40-50; to prevent interference between the machine cover and cleaning or electrophoresis equipment, such as Figure 9 As shown, the opening height of the top of the hood does not exceed 820 mm.

[0093] After the cleaning or electrophoresis process is completed, the device of the present invention needs to be removed from the vehicle body. To remove the device, the lower end of the device of the present invention needs to be loosened from the water tank crossbeam 6, and the top end of the device of the present invention needs to be loosened from the inner surface of the engine cover.

[0094] The method for releasing the lower end of the device of the present invention from the water tank crossbeam 6 is as follows: Loosen the positioning pin 41 from the water tank crossbeam 6. If the positioning pin 41 is firmly fixed to the water tank crossbeam by a nut, loosen the nut and then lift the positioning pin 41 upwards to release it from the water tank crossbeam 6. If the positioning pin 41 is fixed to the water tank crossbeam 6 by an L-shaped hook 42, press the pressing handle at the top of the vertical part 421. The lower part of the vertical part 421 rotates away from the machine cover. This rotation causes the horizontal part 422 to separate from the water tank crossbeam 6. The horizontal part 422 no longer hooks onto the water tank crossbeam 6. Lift the positioning pin 41 upwards to release it from the water tank crossbeam 6. After the positioning pin 41 is released from the water tank crossbeam 6, remove the first C-shaped support groove 311 and the second C-shaped support groove 321 from the water tank crossbeam 6. Then, the lower end of the device of the present invention is released from the water tank crossbeam 6.

[0095] The method for loosening the top of the device of the present invention from the inner surface of the cover is as follows: loosen the nuts 234 at the top of the first vertical end 2321 and the second vertical end 2322 of the U-shaped safety bolt 232, and then pull the handle 231 to make the U-shaped safety bolt 232 move along the semi-enclosed box 233 and the columnar body 238 toward the handle 231. The top of the first vertical end 2321 exits the through hole on the second side 2332 and the first side 2331 in sequence, thereby separating the U-shaped safety bolt 232 from the semi-enclosed box 233. At this time, the U-shaped safety bolt 232 and the U-shaped buckle 7 are no longer locked. Lift the cover 5 upward so that the U-shaped buckle 7 is no longer located in the semi-enclosed box 233, and the spherical tops of the first support rod 2111 and the second support rod 2211 are no longer located in the circular groove on the anti-collision plug protrusion on the inner surface of the cover. Then the top of the device of the present invention is loosened from the inner surface of the cover.

[0096] After loosening the lower end of the device of the present invention from the water tank crossbeam 6, and then loosening the top end of the device of the present invention from the inner surface of the engine cover, the device of the present invention can be removed from the vehicle body.

[0097] In this invention, the length of the second vertical end 2322 is longer than the length of the first vertical end 2321. Regarding the nut 234 involved in this invention, as another embodiment of this invention, the nut 234 may not be provided. Instead, a baffle is provided at the top of the second vertical end 2322 to replace the nut 234. The baffle prevents the second vertical end 2322 from coming out of the columnar body 238. The top of the first vertical end 2321 extends directly from the through hole on the second side 2332. The first vertical end 2321 is locked crosswise with the bottom end of the U-shaped latch 7.

[0098] like Figure 3 As shown, an upper hook 8 can be provided on the first support 21 or the second support 22; a lower hook 9 can be provided on the lower left support 31 or the lower right support 32. The upper hook 8 and the lower hook 9 should be located on the same side of the main frame 1. The upper hook 8 is circular, or the upper hook 8 can form a triangle with the first support 21 or the second support 22. The lower hook 9 is L-shaped. The upper hook 8 and the lower hook 9 are used to store the device of the present invention. In practical applications, there are multiple devices of the present invention moving on the production line in the workshop. Transfer trolleys are needed to turn the devices of the present invention around. Therefore, the upper hook 8 and the lower hook 9 are provided to facilitate hanging the device of the present invention on the trolley. When the vehicle body needs to be cleaned, the device of the present invention is removed from the storage location. One end of the device of the present invention is connected to the water tank crossbeam 6, and the other end is connected to the inner surface of the machine cover 5. After the vehicle is cleaned and electrophoresed, the device of the present invention is removed from the vehicle body and stored on the trolley through the upper hook 8 and the lower hook 9.

[0099] To reduce the overall weight of the device, the device is designed to be hollow. To prevent liquid from accumulating inside the device in the electrophoresis tank, both ends are designed to be open, and a circular hole is designed at the bottom of the fixture to facilitate the drainage of liquid.

[0100] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper" or "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

Claims

1. A device for removing particles from the outer surface of a vehicle's front hood, characterized in that: The device includes a main frame (1), with one end of a connecting part (2) connected to the upper part of the main frame (1), and the other end of the connecting part (2) being detachably connected to the inner surface of the machine cover (5); one end of a mounting part (3) is connected to the lower part of the main frame (1), and the other end of the mounting part (3) is detachably connected to the water tank beam (6); and a fixing part (4) is detachably connected between the bottom end of the main frame (1) and the water tank beam (6). The connecting part (2) includes a first support part (21), a second support part (22), and a third support part (23); One end of the first support part (21) is fixedly connected to the upper part of the left vertical beam (12), and the other end is fixedly connected to the first base (211). The first base is fixed with a first support rod (2111). The top of the first support rod (2111) is spherical. The first support rod (2111) is used to be placed in the circular groove of the anti-collision plug protrusion on one side of the inner surface of the machine cover to provide support for the machine cover. One end of the second support part (22) is fixedly connected to the upper part of the right vertical beam (13), and the other end is fixedly connected to the second base (221). The second base (221) is fixedly equipped with a second support rod (2211). The top of the second support rod (2211) is spherical. The second support rod (2211) is used to fit into the circular groove of the anti-collision plug protrusion on the other side of the inner surface of the machine cover to provide support for the machine cover. The third support part (23) is fixed on the upper crossbeam (11); the inner surface of the machine cover (5) is connected with a U-shaped buckle (7), the third support part (23) includes a U-shaped safety bolt (232) and a semi-enclosed box (233), the semi-enclosed box (233) is used to accommodate the U-shaped buckle (7), and the U-shaped safety bolt (232) is used to lock the buckle (7) in the semi-enclosed box (233); The mounting part (3) includes a lower left support (31) and a lower right support (32). One end of the lower left support (31) is fixedly connected to the lower part of the left vertical beam (12), and the other end is provided with a first C-shaped support groove (311). One end of the lower right support (32) is fixedly connected to the lower part of the right vertical beam (13), and the other end is provided with a second C-shaped support groove (321). The first C-shaped support groove (311) and the second C-shaped support groove (321) are used to be clamped on the water tank crossbeam (6). The fixing part (4) includes a positioning pin (41) connecting the lower crossbeam (15) and the water tank crossbeam (6), and the positioning pin (41) is detachably connected to the water tank crossbeam (6); the fixing part (4) also includes an L-shaped hook (42), which includes a vertical part (421) and a horizontal part (422); the vertical part (421) is fixedly connected to the lower crossbeam (15), and the horizontal part (422) is close to the lower surface of the water tank crossbeam (6) to hook the water tank crossbeam (6); the top of the vertical part (421) is provided with a pressing handle, and the vertical part (421) is divided into an upper part and a lower part, which are rotatably connected. When the pressing handle at the top of the vertical part (421) is pressed, the lower part of the vertical part (421) rotates away from the machine cover, and the rotation of the lower part causes the horizontal part (422) to separate from the water tank crossbeam (6) and no longer hook the water tank crossbeam (6).

2. The apparatus for removing particles from the outer surface of the front hood of a vehicle as described in claim 1, characterized in that: The main frame (1) includes an upper horizontal beam (11), a left vertical beam (12), a right vertical beam (13), a middle horizontal beam (14), and a lower horizontal beam (15); the upper horizontal beam (11), the left vertical beam (12), the right vertical beam (13), and the lower horizontal beam (15) are connected to form a rectangle, and the middle horizontal beam (14) is connected between the left vertical beam (12) and the right vertical beam (13).

3. The apparatus for removing particles from the outer surface of the front hood of a vehicle as described in claim 1, characterized in that: The third support part (23) also includes a handle (231), multiple nuts (234), a semi-enclosed box body diagonal brace (235), a semi-enclosed box body main support (236), a base plate (237), and a column (238). The semi-enclosed box (233) is a rectangular body with an open top surface. The semi-enclosed box (233) and the column (238) are both fixed on the upper surface of the base plate (237). The length of the base plate (237) is longer than the length of the semi-enclosed box (233). After the semi-enclosed box (233) is placed on the base plate (237), the column (238) is set in the empty position on the upper surface of the base plate (237). The column (238) is located outside the semi-enclosed box (233). One end of the semi-enclosed box main support (236) is connected to the base plate (237), and the other end is fixed to the upper crossbeam (11); one end of the semi-enclosed box diagonal brace (235) is connected to the semi-enclosed box main support (236), and the other end is connected to the base plate (237).

4. The apparatus for removing particles from the outer surface of a vehicle's front hood as described in claim 3, characterized in that: The semi-enclosed box (233) includes a first side (2331), a second side (2332), and a third side (2333). The first side (2331) and the second side (2332) are arranged opposite to each other, and the third side (2333) is connected between the first side (2331) and the second side (2332). The columnar body (238) is located on the outside of the third side (2333). The semi-enclosed box (233) has circular through holes on both its first side (2331) and second side (2332), with the through holes on the first side (2331) and the second side (2332) being opposite to each other; the columnar body (238) is hollow inside, and the hollow part is cylindrical; The U-shaped safety bolt (232) includes a first vertical end (2321), a second vertical end (2322) and a bottom end. Both the first vertical end (2321) and the second vertical end (2322) are cylindrical. The second vertical end (2322) is longer than the first vertical end (2321). The bottom end is connected to a handle (231). When the nuts (234) are not installed at the top of the first vertical end (2321) and the second vertical end (2322), the U-shaped safety bolt (232) can be pushed forward or pulled backward by holding the handle (231) to move the U-shaped safety bolt (232) forward or backward along the semi-enclosed box (233) and the column (238).

5. A method for removing particles from the outer surface of a vehicle's front hood using the apparatus for removing particles from the outer surface of a vehicle's front hood as described in claim 1: Open the cover (5), and place the first C-shaped support groove (311) and the second C-shaped support groove (321) on the water tank crossbeam (6). Adjust the position of the device horizontally along the water tank crossbeam (6) so that the U-shaped buckle (7) on the inner surface of the cover (5) can fall into the semi-closed box (233). At the same time, the spherical top of the first support rod (2111) is located in the circular groove on the anti-collision plug protrusion on one side of the inner surface of the cover, and the spherical top of the second support rod (2211) is located in the circular groove on the anti-collision plug protrusion on the other side of the inner surface of the cover. The positioning pin (41) is fixed between the lower crossbeam (15) and the water tank crossbeam (6). The buckle (7) located in the semi-enclosed box (233) is locked by the U-shaped safety bolt (232). When the hood is open, the vehicle body passes through the cleaning tank and the electrophoresis tank, opening the hood at a 45° angle relative to the plane where the engine compartment is located. During the process of the vehicle body entering and exiting the cleaning tank and the electrophoresis tank, the hood is at a 75° angle to the ground, which increases the gap (51) between the hood and the dashboard. When the vehicle body exits the tank, the liquid in the vehicle body interior flows out from the gap (51) between the hood and the dashboard. After the cleaning or electrophoresis process is completed, press the pressing handle at the top of the vertical part (421) of the L-shaped hook (42) to rotate the lower part of the vertical part (421) away from the machine cover. The rotation of the lower part of the vertical part (421) causes the horizontal part (422) to separate from the water tank beam (6). The horizontal part (422) no longer hooks the water tank beam (6). Lift the positioning pin (41) upward to release the positioning pin (41) from the water tank beam (6). After the positioning pin (41) is released from the water tank beam (6), remove the first C-shaped support groove (311) and the second C-shaped support groove (321) from the water tank beam (6) and remove the device from the vehicle body.

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