Positioning and shielding tool for spraying automobile exterior parts

Abstract

The utility model provides a kind of positioning shielding tool for automobile exterior trim piece spraying, comprising: mounting bracket and positioning tool;Adjusting shaft, rotation is set on the mounting bracket upper end, the positioning tool is set in adjusting shaft inside, for driving the positioning tool is rotated and adjusted;Power mechanism, with the adjusting shaft transmission connection, for driving the adjusting shaft is rotated;Shielding frame, hinged in the positioning tool upper end;Lower mould plate, set in the positioning tool inside, for the required automobile exterior trim piece of spraying is supported;Upper mould plate, set in the shielding frame inside, for cooperating the shielding frame to the part of automobile exterior trim piece upper end not needing spraying is shielded.The utility model realizes the stable shielding of the part of automobile exterior trim piece upper end not needing spraying, also can conveniently rotate and position the spraying angle of automobile exterior trim piece, improves the efficiency and quality of spraying operation.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a positioning and masking fixture for spraying automobile exterior parts. Background Technology

[0002] Traditional automotive exterior paint spraying fixtures typically employ a fixed shielding structure, for example, by fixing the shielding plate to the main body of the fixture using bolts or clips.

[0003] However, during the painting process of automotive exterior parts, the masking plate and the main fixture are rigidly connected. The overall position of the fixture needs to be adjusted during painting to change the painting angle of the exterior parts, resulting in low operational efficiency and a high risk of missed areas or paint splatter due to human error. Furthermore, the corner areas of automotive exterior parts (such as concave surfaces and bends) are difficult to cover directly with the spray gun, requiring multiple adjustments to the fixture position or using spray guns at different angles for touch-ups, increasing the rework rate of automotive exterior parts painting. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a positioning and masking fixture for spraying automotive exterior parts.

[0005] To address the aforementioned technical problems in the painting of automotive exterior parts, where the masking plate and the main fixture are rigidly connected, requiring adjustments to the overall fixture position to change the painting angle, resulting in low operational efficiency and susceptibility to human error leading to missed areas or paint splatter, and further exacerbating the issue of repeated fixture adjustments or using different spray gun angles for touch-ups due to the difficulty of directly covering corner areas, this invention adopts the following technical solution: A positioning and masking fixture for painting automotive exterior parts includes: a mounting bracket and a positioning fixture; An adjusting shaft is rotatably mounted on the upper end of the mounting bracket, and the positioning fixture is located inside the adjusting shaft to drive the positioning fixture to rotate and adjust. A power mechanism, which is connected to the adjusting shaft, is used to drive the adjusting shaft to rotate; The shielding frame is hinged to the upper end of the positioning fixture; The lower template is set inside the positioning fixture to support the automotive exterior parts to be painted; The upper template is set inside the masking frame and is used to mask the upper part of the car exterior parts that do not need to be painted.

[0006] Preferably, the power mechanism includes: a motor, a first gear and a second gear. The motor is mounted on the upper end of the mounting bracket. The first gear is keyed to the outer drive shaft portion of the motor, and the first gear meshes with the second gear. The second gear is keyed to the outer side of the adjustment shaft.

[0007] Preferably, the mounting bracket has an extension protrusion at its upper end, and the adjustment rotatable connection is located at the upper end of the shaft extension protrusion.

[0008] Preferably, the upper end of the lower template matches the bottom of the automotive exterior part to be painted, and the lower end of the upper template matches the upper end of the automotive exterior part to be painted.

[0009] Preferably, the outer sides of the shielding frame and the positioning fixture are respectively provided with a lower positioning block and an upper positioning block, and the outer sides of the lower positioning block and the upper positioning block are respectively distributed in a U-shape. The lower positioning block is rotatably connected to a screw, and the screw extends upward to the upper end of the upper positioning block and is threadedly connected to a fastening ring.

[0010] Preferably, the shielding frame has first pin holes on both sides, and the upper template has second pin holes on both sides. The first pin holes and the second pin holes have the same inner diameter and are kept on the same horizontal line. Pin rods are inserted into the inner walls of the first pin holes and the second pin holes.

[0011] Preferably, a connecting rod is provided on the outer side of the pin, and a spring is provided on the inner side of the connecting rod, with the side of the spring away from the connecting rod located on the outer side of the shielding frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention places the automotive exterior parts to be painted on the upper end of the lower template. The lower template provides stable support for the bottom of the automotive exterior parts. The masking frame cooperates with the upper template to mask the parts of the automotive exterior parts that do not need to be painted. Rotating the fastening ring generates a downward force due to the threaded connection between the fastening ring and the screw, thereby squeezing and tightening the lower and upper positioning blocks, ensuring that the masking frame can be stably fixed on the upper end of the positioning fixture, thus achieving stable masking of the parts of the automotive exterior parts that do not need to be painted. In this invention, the motor drives the first gear to rotate, which in turn drives the second gear to rotate through meshing, thereby driving the adjusting shaft to rotate. The rotation of the adjusting shaft drives the positioning fixture to rotate, which in turn drives the automotive exterior parts to rotate simultaneously, thus achieving flexible adjustment and positioning of the painting angle of the automotive exterior parts. In this way, this embodiment not only achieves stable shielding of the upper part of the automotive exterior parts that do not need to be painted, but also allows for convenient rotation, positioning, and adjustment of the painting angle of the automotive exterior parts, improving the efficiency and quality of the painting operation. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure at point A of this utility model; Figure 4 This is a cross-sectional view of the overall structure of this utility model; Figure 5 This is a partial structural cross-sectional view of the present invention.

[0014] Reference numerals: 1. Mounting bracket; 2. Positioning fixture; 3. Extension protrusion; 4. Adjusting shaft; 5. Lower template; 6. Covering frame; 7. Lower positioning block; 8. Upper positioning block; 9. Screw; 10. Fastening ring; 11. Upper template; 12. First pin hole; 13. Second pin hole; 14. Pin; 15. Connecting rod; 16. Spring; 17. Motor; 18. First gear; 19. Second gear. Detailed Implementation

[0015] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0016] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0017] Please see Figure 1 - Figure 5 This embodiment proposes a positioning and masking fixture for automotive exterior parts spraying, including a mounting bracket 1 and a positioning fixture 2.

[0018] The upper end of the mounting bracket 1 is welded or integrally formed with an extension protrusion 3. The upper end of the extension protrusion 3 is rotatably connected to an adjustment shaft 4 via a rotating shaft, and the positioning fixture 2 is welded to the inner side of the adjustment shaft 4, so that the positioning fixture 2 is rotatably set at the upper end of the mounting bracket 1.

[0019] The lower template 5 is fixed to the bottom of the positioning fixture 2 via an interference fit. The upper part of the lower template 5 is shaped to fit the bottom of the automotive exterior part to be painted, providing support for the bottom of the automotive exterior part. The upper end of the positioning fixture 2 is hinged to the shielding frame 6 via a hinge. A lower positioning block 7 and an upper positioning block 8 are welded to the outer sides of the shielding frame 6 and the positioning fixture 2, respectively, and both are distributed in a U-shape on their outer sides. Inside the lower positioning block 7, a screw 9 is rotatably connected via a pivot. The screw 9 extends upward to the upper end of the upper positioning block 8 and is threadedly connected to a fastening ring 10. When the fastening ring 10 is rotated, it exerts a squeezing and tightening effect on the lower positioning block 7 and the upper positioning block 8, thereby ensuring that the shielding frame 6 can be fixed to the upper end of the positioning fixture 2. Inside the masking frame 6, the upper template 11 is also installed using an interference fit. The lower end of the upper template 11 matches the upper end of the automotive exterior parts to be painted, so that the masking frame 6 and the upper template 11 cooperate with each other to effectively mask the parts of the automotive exterior parts that do not need to be painted.

[0020] To achieve the limiting and positioning of the upper template 11, first pin holes 12 are opened on both sides of the shielding frame 6, and second pin holes 13 are opened on both sides of the upper template 11. The inner diameter of the first pin holes 12 and the second pin holes 13 are the same and they are kept on the same horizontal line. Inserting the pin 14 into the first pin holes 12 and the second pin holes 13 can complete the limiting and positioning of the upper template 11, preventing the upper template 11 from loosening due to gravity when the shielding frame 6 is opened. A connecting rod 15 is glued to the outside of the pin 14, and a spring 16 is coupled and installed on the inside of the connecting rod 15. The end of the spring 16 away from the connecting rod 15 is coupled and installed on the outside of the shielding frame 6. This allows the spring 16 and the connecting rod 15 to cooperate with each other, providing elastic support for the pin 14 and ensuring its stable position.

[0021] On the outer side of the extended protrusion 3, a motor 17 is fixedly installed by screws. The outer drive shaft of the motor 17 is keyed to a first gear 18, which meshes with a second gear 19 keyed to the outer side of the adjusting shaft 4. When the motor 17 is started, it drives the adjusting shaft 4 to rotate through the transmission action of the first gear 18 and the second gear 19.

[0022] Please continue reading. Figure 1 - Figure 5 In actual use, the operation process of this embodiment is as follows: First, open the masking frame 6 and place the automotive exterior parts to be painted on the upper end of the lower template 5. At this time, the lower template 5 will provide stable support for the bottom of the automotive exterior parts. Next, close the masking frame 6 so that the masking frame 6 and the upper template 11 cooperate with each other to mask the parts of the automotive exterior parts that do not need to be painted. Then, rotate the fastening ring 10. Since the fastening ring 10 is threadedly connected to the screw 9, it will generate a downward force when rotated, thereby squeezing and tightening the lower positioning block 7 and the upper positioning block 8, ensuring that the masking frame 6 can be stably fixed on the upper end of the positioning fixture 2, and achieving stable masking of the parts of the automotive exterior parts that do not need to be painted.

[0023] Once the unpainted areas on the upper part of the automotive exterior trim are stably shielded, motor 17 is activated. Motor 17 drives the first gear 18 to rotate, which in turn drives the second gear 19 to rotate, thereby rotating the adjusting shaft 4. The rotation of the adjusting shaft 4 causes the positioning fixture 2 to rotate, which in turn drives the automotive exterior trim to rotate, thus achieving flexible adjustment and positioning of the painting angle. In this way, this embodiment not only achieves stable shielding of the unpainted areas on the upper part of the automotive exterior trim but also allows for convenient rotation and positioning adjustment of the painting angle, improving the efficiency and quality of the painting operation.

[0024] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A positioning and masking fixture for painting automotive exterior parts, characterized in that, include: Mounting brackets and positioning fixtures; An adjusting shaft is rotatably mounted on the upper end of the mounting bracket, and the positioning fixture is disposed inside the adjusting shaft to drive the positioning fixture to rotate and adjust. A power mechanism, which is connected to the adjusting shaft, is used to drive the adjusting shaft to rotate; The shielding frame is hinged to the upper end of the positioning fixture; The lower template is set inside the positioning fixture to support the automotive exterior parts to be painted; The upper template is set inside the masking frame and is used to mask the upper part of the car exterior parts that do not need to be painted.

2. The positioning and masking fixture for automotive exterior parts painting according to claim 1, characterized in that, The power mechanism includes a motor, a first gear, and a second gear. The motor is mounted on the upper end of the mounting bracket. The first gear is keyed to the outer drive shaft of the motor, and the first gear meshes with the second gear. The second gear is keyed to the outer side of the adjustment shaft.

3. The positioning and masking fixture for automotive exterior parts painting according to claim 1, characterized in that, The mounting bracket has an extension protrusion at its upper end, and the adjustment rotatable connection is located at the upper end of the shaft extension protrusion.

4. The positioning and masking fixture for automotive exterior parts painting according to claim 1, characterized in that, The upper end of the lower template matches the bottom of the automotive exterior part to be sprayed, and the lower end of the upper template matches the upper end of the automotive exterior part to be sprayed.

5. The positioning and masking fixture for automotive exterior parts painting according to claim 1, characterized in that, The shielding frame and the positioning fixture are respectively provided with a lower positioning block and an upper positioning block on their outer sides, and the outer sides of the lower positioning block and the upper positioning block are respectively distributed in a U shape. The lower positioning block is rotatably connected to a screw, and the screw extends upward to the upper end of the upper positioning block and is threadedly connected to a fastening ring.

6. The positioning and masking fixture for automotive exterior parts painting according to claim 1, characterized in that, The shielding frame has first pin holes on both sides, and the upper template has second pin holes on both sides. The inner diameter of the first pin holes and the second pin holes are the same and are kept on the same horizontal line. Pin rods are inserted into the inner walls of the first pin holes and the second pin holes.

7. The positioning and masking fixture for automotive exterior parts painting according to claim 6, characterized in that, A connecting rod is provided on the outside of the pin, and a spring is provided on the inside of the connecting rod, with the side of the spring away from the connecting rod located on the outside of the shielding frame.

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