A coating hanger for ensuring product uniformity

Abstract

The utility model belongs to the automobile ornament plating film technical field, concretely relates to a kind of plating film hanger for guaranteeing product uniformity;Including upper cover plate, first positioning profiling block, second positioning profiling block and lower cover plate, wherein one end of upper cover plate and lower cover plate is hinged cooperation, and form the profiling cavity that can be opened and closed;The profiling through slot of same shape with the component to be plated film is equipped in the upper cover plate, and the first positioning profiling block is equipped in the inside front end of lower cover plate, and the second positioning profiling block is equipped in the inside rear end of lower cover plate;Ball head plunger is equipped in the first positioning profiling block and the second positioning profiling block;The utility model solves the problem that mirror surface uniformity is poor due to the whole uniformity is not good in plating film process, not only improves production efficiency and production capacity, but also can reduce scrap rate, reduce time cost.

Description

Technical Field

[0001] This utility model belongs to the field of automotive trim coating technology, specifically relating to a coating fixture that ensures product uniformity. Background Technology

[0002] Currently, the coating process for automotive interior parts typically involves several manufacturing steps. The coating process is crucial for illuminated logos, requiring uniformity of the luminous surface after application. However, for common automotive interior and exterior parts requiring coating, such as headlight covers, headlight reflectors, and ashtray covers, the coating fixtures mostly use a bare-surface hanging method. For example, exterior front badges need to have the entire coated surface exposed. This makes it difficult to achieve consistent coating thickness, and for luminous products, this method cannot guarantee the overall uniformity of the luminous surface.

[0003] Specifically, the current automotive trim coating process has the following main technical defects:

[0004] Traditional suspended fixtures are not secure in positioning complex curved parts, and they are prone to displacement during the coating process;

[0005] Traditional open structures cause turbulent steam flow, with the film thickness at the edge region being 20%-30% thinner than that in the central region;

[0006] Traditional rigid clamping methods are prone to causing indentations on mirror-finished substrates, and the pass rate for secondary clamping is only 85.7%.

[0007] Experimental results show that luminous signs produced using existing technology exhibit obvious bright and dark stripes in a dark room environment, which does not meet the standard requirements. Utility Model Content

[0008] To overcome the above problems, this utility model provides a coating fixture that ensures product uniformity; it solves the problem of poor surface uniformity caused by poor overall uniformity during the coating process, which not only improves production efficiency and production capacity, but also reduces scrap rate and time costs.

[0009] A coating fixture for ensuring product uniformity includes an upper cover plate 1, a first positioning contour block 3, a second positioning contour block 4, and a lower cover plate 5. The upper cover plate 1 and the lower cover plate 5 are hinged at one end to form an openable contour cavity. The upper cover plate 1 has a contour through groove with the same shape as the part to be coated. The lower cover plate 5 has a first positioning contour block 3 at its front end and a second positioning contour block 4 at its rear end. Both the first positioning contour block 3 and the second positioning contour block 4 have ball-head plungers 2 inside them.

[0010] The ball plunger 2 is an M5 ball plunger.

[0011] The lower cover plate 5 has second positioning contour blocks 4 on both sides of its rear end.

[0012] The first positioning contour block 3 has a contour groove at its front end that has the same shape as the front end of the component to be coated, so that the front end of the component to be coated can fit into the contour groove.

[0013] The second positioning contour block 4 on the left side inside the lower cover plate 5 is provided with a contour groove of the same shape as the outer left rear end of the component to be coated, so that the left rear end of the component to be coated can fit into the contour groove.

[0014] The second positioning contour block 4 on the right side inside the lower cover plate 5 is provided with a contour groove of the same shape as the outer right rear end of the component to be coated, so that the right rear end of the component to be coated can fit into the contour groove.

[0015] The upper cover plate 1 and the lower cover plate 5 are respectively provided with a buckle and a keyhole, so that after the upper cover plate 1 is closed on the lower cover plate 5, the two can be locked together.

[0016] The contoured groove on the upper cover plate 1 maintains a 1.2mm gap with the product outline.

[0017] The beneficial effects of this utility model are:

[0018] This utility model ensures uniformity through precise positioning: by the synergistic action of the front and rear contour blocks and the ball plunger, the three-dimensional precise positioning of the part to be coated is achieved, so that the coating surface and the evaporation source maintain the best relative angle, and the film thickness uniformity deviation can be controlled within ±3%.

[0019] Dynamic compensation structure: The elastic preload design of the M5 ball plunger can compensate for component tolerances (accommodating dimensional fluctuations of ±0.5mm) and avoid stress concentration caused by rigid clamping, making it particularly suitable for irregular curved parts;

[0020] Fully enclosed coating environment: The upper cover plate's contoured groove and the lower cover plate form a semi-enclosed cavity, effectively controlling the distribution of coating vapor flow field and solving the film thickness gradient problem caused by the edge effect of traditional open fixtures;

[0021] Quick-change design: Modular positioning contour blocks can be replaced via a quick-release structure, with a changeover time of less than 5 minutes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] The components include: upper cover plate 1, ball plunger 2, first positioning guide block 3, second positioning guide block 4, and lower cover plate 5. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] A coating fixture for ensuring product uniformity includes an upper cover plate 1, a first positioning contour block 3, a second positioning contour block 4, and a lower cover plate 5. The upper cover plate 1 and the lower cover plate 5 are movably connected at one end, allowing the upper cover plate 1 to close the lower cover plate 5. The upper cover plate 1 has a contour groove with the same shape as the part to be coated. The lower cover plate 5 has a first positioning contour block 3 at its front end and a second positioning contour block 4 at its rear end. Both the first positioning contour block 3 and the second positioning contour block 4 have ball-head plungers 2 inside them.

[0030] The ball plunger 2 is an M5 ball plunger.

[0031] The lower cover plate 5 has second positioning contour blocks 4 on both sides of its rear end.

[0032] The first positioning contour block 3 has a contour groove at its front end that has the same shape as the front end of the component to be coated, so that the front end of the component to be coated can fit into the contour groove.

[0033] The second positioning contour block 4 on the left side inside the lower cover plate 5 is provided with a contour groove of the same shape as the outer left rear end of the component to be coated, so that the left rear end of the component to be coated can fit into the contour groove.

[0034] The second positioning contour block 4 on the right side inside the lower cover plate 5 is provided with a contour groove of the same shape as the outer right rear end of the component to be coated, so that the right rear end of the component to be coated can fit into the contour groove.

[0035] The upper cover plate 1 and the lower cover plate 5 are respectively provided with a buckle and a keyhole, so that after the upper cover plate 1 is closed on the lower cover plate 5, the two can be locked together.

[0036] In use, place the part to be coated into the center area of ​​the lower cover plate 5 and press it down so that the front end of the part to be coated fits into the first positioning contour block 3, and the rear ends of the part to be coated fit into the corresponding second positioning contour blocks 4 respectively. The part to be coated is pre-tightened between the first positioning contour block 3 and the second positioning contour block 4 by the ball plunger 2. Then, cover the lower cover plate 5 with the upper cover plate 1 to complete the installation.

[0037] After installation, place the coating fixture containing the parts to be coated into the coating machine for coating to achieve uniform coating.

[0038] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, any equivalent substitutions or modifications made by those skilled in the art based on the technical solution and the inventive concept of the present invention within the scope of the technical concept disclosed in the present invention shall all fall within the scope of protection of the present invention.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0040] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A coating rack for ensuring product uniformity, characterized in that, It includes an upper cover plate (1), a first positioning contour block (3), a second positioning contour block (4) and a lower cover plate (5), wherein one end of the upper cover plate (1) and the lower cover plate (5) are hinged to form an openable contour cavity. The upper cover plate (1) is provided with a contour through groove of the same shape as the part to be coated. The lower cover plate (5) is provided with the first positioning contour block (3) at the front end and the second positioning contour block (4) at the rear end. Both the first positioning contour block (3) and the second positioning contour block (4) are provided with ball plungers (2).

2. The coating fixture for ensuring product uniformity according to claim 1, characterized in that, The ball plunger (2) is an M(5) ball plunger.

3. The coating rack for ensuring product uniformity according to claim 1, characterized in that, The lower cover plate (5) has second positioning contour blocks (4) on both sides of the rear end inside.

4. The coating fixture for ensuring product uniformity according to claim 1, characterized in that, The first positioning contour block (3) has a contour groove at its front end that has the same shape as the front end of the component to be coated, so that the front end of the component to be coated can fit into the contour groove.

5. A coating fixture for ensuring product uniformity according to claim 3, characterized in that, The second positioning contour block (4) on the left side inside the lower cover plate (5) is provided with a contour groove of the same shape as the outer left rear end of the component to be coated, so that the left rear end of the component to be coated can fit into the contour groove.

6. A coating fixture for ensuring product uniformity according to claim 3, characterized in that, The second positioning contour block (4) on the right side inside the lower cover plate (5) is provided with a contour groove of the same shape as the outer right rear end of the component to be coated, so that the right rear end of the component to be coated can fit into the contour groove.

7. A coating fixture for ensuring product uniformity according to claim 1, characterized in that, The upper cover plate (1) and the lower cover plate (5) are respectively provided with a buckle and a keyhole, so that after the upper cover plate (1) is closed on the lower cover plate (5), the two can be locked together.

8. A coating fixture for ensuring product uniformity according to claim 1, characterized in that, The contoured through groove on the upper cover plate (1) maintains a 1.2mm gap with the product outline.

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