A method for processing a laser engraving carrier base and a multi-color area part

Abstract

The present invention provides a method for processing a laser engraving bearing base and a multi-color area part. The laser engraving bearing base and the part base of the present invention are used in combination with multiple spray painting and multiple engraving processes to obtain parts with different color combinations, with low cost, high pattern quality and fast processing speed. The method comprises: processing a part base according to the required shape, the whole or part of the part base is made of transparent material, and the front and rear end faces of the part base can be seen through; spray painting the rear end face of the part base; using the above-mentioned laser engraving bearing base, fixing the base on the workbench of the laser engraving machine, positioning the part base in the bearing area of ​​the bracket, positioning the bracket in the positioning groove of the base, laser engraving the rear end face of the part base to remove the paint layer of the engraved part; removing the part base from the bracket, spray painting the rear end face of the part base, and repeating the laser engraving and spray painting steps until the processing is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-color area part processing, and particularly relates to a laser engraving carrier base and a processing method for multi-color area parts. Background Art

[0002] In production and processing, sometimes two or more color combinations are required on a single part, such as the logo part of a car in the automotive industry. The traditional methods are achieved through masking painting or part disassembly. Specifically:

[0003] Masking painting method: When painting, other color areas on the part surface are masked by means such as taping. The disadvantage is that burrs are likely to occur on the boundary lines of different colors, resulting in poor appearance quality of the part.

[0004] Part disassembly method: The part is disassembled into multiple parts according to different colors, processed and painted separately, and then assembled into one part. The disadvantages are that the number of parts is increased, the cost is higher, and the disassembly and processing of some small-sized parts are difficult.

[0005] In view of the above technical problems, the creator of the present invention finally obtained the present invention through long-term research and practice. Summary of the Invention

[0006] To solve the above technical defects, the present invention provides a laser engraving carrier base and a processing method for multi-color area parts. By using the laser engraving carrier base of the present invention in cooperation with the part substrate for multiple painting and multiple engraving processes, parts with different color combinations can be obtained, with low cost, high pattern quality, and fast processing speed.

[0007] The technical solution adopted by the present invention is as follows:

[0008] On the one hand, a laser engraving carrier base is provided, including:

[0009] A bracket, on which a bearing area for bearing the part to be processed is provided. A limiting through groove penetrating the bracket is provided on the bearing area, and the shape of the bearing area matches that of the part to be processed;

[0010] A base, whose bottom surface is a plane, and a positioning groove is provided on the upper end surface. The bracket is detachably installed in the positioning groove;

[0011] A limiting block, for fixing one end to the part to be processed and having a clearance fit with the limiting through groove at the other end.

[0012] Further, corresponding position marks are respectively provided on the bracket and the base for indicating the installation direction of the bracket.

[0013] Further, positioning openings are respectively provided on both sides of the positioning groove of the base, and protrusions are respectively provided on both sides of the bracket corresponding to the positioning openings, and the protrusions are snap-fitted with the positioning openings.

[0014] Further, a disassembly and assembly through hole is provided in the bearing area of the bracket to facilitate the disassembly of the parts to be processed in the bearing area.

[0015] Further, there are two limiting through grooves, and the center lines in the length direction are perpendicular to each other; there are two limiting blocks, which are respectively matched with the two limiting through grooves.

[0016] On the other hand, a processing method for multi-color area parts is provided, including:

[0017] Step 1: Process a part substrate according to the required shape. All or part of the part substrate is made of a transparent material. The part substrate has opposite front and rear end faces, and it is transparent between the front and rear end faces;

[0018] Step 2: Spray paint on the rear end face of the part substrate;

[0019] Step 3: Use the above-mentioned laser engraving bearing base, fix the base on the workbench of the laser engraving machine, position and place the part substrate in the bearing area of the bracket, position and place the bracket in the positioning groove of the base, and perform laser engraving on the rear end face of the part substrate to remove the paint layer of the engraved part;

[0020] Step 4: Remove the part substrate from the bracket, spray paint on the rear end face of the part substrate, and the spraying range at least includes the area engraved last time. The paint used in this spraying operation is different from the paint used in the previous spraying operation. If the processing is completed, execute Step 5;

[0021] Step 5: Repeat Step 3 and Step 4 until the processing is completed.

[0022] Further, in the Step 4, the paint used in this spraying operation is different from the paint used in the previous spraying operation, including:

[0023] The color of the paint used in this spraying operation is different from the color of the paint used in the previous spraying operation.

[0024] Further, in the Step 4, the paint used in this spraying operation is different from the paint used in the previous spraying operation, including:

[0025] The appearance effect produced by the paint used in this spraying operation is different from the appearance effect produced by the paint used in the previous spraying operation.

[0026] Further, in the step 3, positioning and placing the part base body in the bearing area of the bracket, and positioning and placing the bracket in the positioning groove of the base, includes:

[0027] Place the part base body in the bearing area of the bracket. At this time, the front end face of the part base body fits with the bearing area; turn the bracket and the part base body as a whole, apply glue to the limit block and place it in the limit through groove to bond and fix it with the front end face of the part base body; turn the bracket and the part base body as a whole again, and then place the bracket in the positioning groove of the base to ensure that the direction of the bracket on the base is correct.

[0028] Further, in the step 4, removing the part base body from the bracket, includes:

[0029] Keep the position of the base unchanged, remove the bracket and the part base body as a whole from the base, and then remove the part base body from the bracket. At this time, the part base body and the limit block are an integral whole.

[0030] Further, in the step 1, the rear end face of the part base body is a plane.

[0031] Further, in the step 3, before laser engraving the rear end face of the part base body, ensure that the rear end face of the part base body is horizontal.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] By using the laser engraving carrier base and the processing method of multi-color area parts of the present invention, compared with the traditional masking painting method, the boundary lines of different colors are clear and burr-free, and the appearance quality is high; compared with the traditional disassembly method, the disassembly design workload is reduced, the processing difficulty is low, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 Shows a schematic diagram of the overall structure of the part to be processed in the embodiment of the present invention installed on the laser engraving carrier base;

[0036] Figure 2 Shows a schematic diagram of the overall structure of the laser engraving carrier base in the embodiment of the present invention;

[0037] Figure 3 The structural schematic diagram of the base of the laser-engraving carrier base according to the embodiment of the present invention is shown;

[0038] Figure 4 The structural schematic diagram of the bracket of the laser-engraving carrier base according to the embodiment of the present invention is shown;

[0039] Figure 5 The structural schematic diagram of the state where the limit block is fixed to the part base according to the embodiment of the present invention is shown;

[0040] Figure 6 The execution schematic diagram in step 3 of the method according to the embodiment of the present invention is shown;

[0041] Figure 7 The structural schematic diagram of the multi-color area part after processing according to the embodiment of the present invention is shown. Specific embodiments

[0042] The above and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0044] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] A laser engraving machine can use a laser to engrave a target pattern on the surface of a material. It has a fast engraving speed and high pattern quality, and is widely used in actual work. The present invention provides a laser engraving carrier base and a processing method for multi-color area parts. By using the laser engraving carrier base of the present invention in cooperation with the part substrate, a process of multiple painting and multiple engraving is carried out to obtain parts with different color combinations.

[0047] As Figure 1 、 Figure 2 shown, Figure 1 FIG. shows a schematic diagram of the overall structure of a part to be processed according to an embodiment of the present invention mounted on a laser engraving carrier base. Figure 2 FIG. shows a schematic diagram of the overall structure of a laser engraving carrier base according to an embodiment of the present invention. The laser engraving carrier base includes a base 1 and a bracket 2. The bottom surface of the base 1 is a plane, and the bracket 2 is detachably mounted on the base 1. A part 3 to be processed is carried on the bracket 2. The connection between the part 3 to be processed and the bracket 2 is also detachable.

[0048] As Figure 3 、 Figure 4 、 Figure 5 shown, Figure 3 FIG. shows a schematic diagram of the structure of the base of the laser engraving carrier base according to an embodiment of the present invention; Figure 4 FIG. shows a schematic diagram of the structure of the bracket of the laser engraving carrier base according to an embodiment of the present invention. In one embodiment, the base 1 is located at the bottom of the entire base. Its bottom surface and upper end surface are both planes. The bottom surface is fixed on the working table of the laser engraving machine, and a positioning groove 11 is provided on the upper end surface. The bracket 2 is detachably mounted on the positioning groove 11. A bearing area 21 for carrying the part to be processed is provided on the top surface of the bracket 2. Limiting through grooves 24, 24` penetrating the bracket 2 are provided on the bearing area 21 for placing limiting blocks 26, 26`. One end of the limiting blocks 26, 26` is fixed to the part 3 to be processed, and the other end has a clearance fit with the limiting through grooves 24, 24`. The bearing area 21 is a conformal surface, that is, its shape matches the mating surface of the part 2 to be processed. Using the conformal surface to support the part to be processed can make the engraving surface of the part to be processed as close to the horizontal plane as possible, reduce the height difference, and reduce the distortion of the engraved pattern.

[0049] The bracket 2 is placed in the positioning groove 11 of the base 1. On both sides of the positioning groove 11 on the base 1, there are respectively positioning openings 12. There is a protrusion 22 on each of the left and right sides, and the protrusion 22 is in snap-fit with the positioning opening 12 to prevent the bracket 2 from moving in the positioning groove 11. Corresponding position markings are provided on the bracket 2 and the base 1 respectively to indicate the installation direction of the bracket 2. The position markings can be direction holes 13 and 23 in this embodiment. When the bracket 2 is placed on the base 1, the direction hole 13 on the base 1 coincides with the direction hole 23 on the bracket 2 to prevent the bracket 2 from being installed in the wrong direction. On the bearing area 21 near the limiting through grooves 24 and 24`, there are two circular disassembly and assembly through holes 25 to facilitate the disassembly of the workpiece 3 to be processed in the bearing area.

[0050] In a specific embodiment, there are two limiting through grooves 24 and 24`, and the center lines in the length direction are perpendicular to each other. There are two limiting blocks, which are respectively matched with the two limiting through grooves 24 and 24` to prevent the workpiece 3 to be processed from moving on the bracket 2. The cooperation of the workpiece 3 to be processed with the limiting blocks ensures that the position of the workpiece 3 to be processed on the bracket 2 remains unchanged after repeated disassembly and assembly.

[0051] It can be understood that the positioning structure and form of the bracket 2 in the base 1 can be changed, such as using a positioning pin. The structure and form of the limiting block and the limiting through groove on the bracket can be changed, such as the direction and quantity of the limiting through groove can be changed.

[0052] Such as Figure 6 , Figure 7 As shown in Figure 6 Figure 3 shows the execution schematic diagram in step 3 of the method of the embodiment of the present invention. Figure 7 Figure 4 shows the structural schematic diagram of the multi-color area part after processing of the embodiment of the present invention. Correspondingly, the present invention also provides a processing method for the multi-color area part:

[0053] Step 1: Process the part substrate according to the required shape. All or part of the part substrate is made of a transparent material, and the part substrate has opposite front end faces 31 and rear end faces 32, and it is transparent between the front and rear end faces.

[0054] Step 2: Spray paint on the rear end face 32 of the part substrate.

[0055] Step 3: Use the above-mentioned laser engraving carrier base, fix the base on the workbench of the laser engraving machine, position and place the part substrate in the bearing area of the bracket, position and place the bracket in the positioning groove of the base, and perform laser engraving on the rear end face 32 of the part substrate to remove the paint layer of the engraved part.

[0056] Step 4: Remove the part base from the bracket, spray paint the rear end face 32 of the part base, and the spraying range shall at least cover the area engraved last time. The paint used in this spraying operation is different from that in the previous spraying operation. After the processing is completed, perform Step 5;

[0057] Step 5: Repeat Step 3 and Step 4 until the processing is completed.

[0058] It should be noted that in Step 4, the color of the paint used in this spraying operation is different from that in the previous spraying operation. Or, the appearance effect produced by the paint used in this spraying operation is different from that produced by the paint used in the previous spraying operation, such as mirror effect and matte effect respectively. In use, generally, the front end face 31 of the part is the visible surface, and the rear end face 32 is invisible. When observed from the front end face 31 by an observer, the paint layer on the rear end face 32 is reflected through the part base to the front end face 31 to achieve a multi-color combination on one part.

[0059] Such as Figure 7 As shown, in a specific example, the rear end face 32 of the part is sprayed four times and engraved three times. The first layer of paint A is the primer. Then, part of the first layer of paint A in some areas is removed by engraving. Then, the second layer of paint B is sprayed. Then, part of the first layer of paint A and the second layer of paint B in some areas are removed by engraving. Then, the third layer of paint C is sprayed. Then, part of the first layer of paint A, the second layer of paint B, and the third layer of paint C in some areas are removed by engraving. Then, the fourth layer of paint D is sprayed. Obviously, when looking from the front end face 31 of the part, the first layer of paint A is seen in the areas not engraved, the second layer of paint B is seen in the areas engraved for the first time, the third layer of paint C is seen in the areas engraved for the second time, and the fourth layer of paint D is seen in the areas engraved for the third time. Compared with the traditional masking spraying method, the boundary lines of different colors are clear and burr-free, and the appearance quality is high; compared with the traditional disassembly method, the workload of disassembly design is reduced, the processing difficulty is low, and the cost is low.

[0060] In some embodiments, the rear end face of the part base is a plane. Before engraving the rear end face of the part base, ensure that the rear end face of the part base is horizontal to reduce the distortion of the engraved pattern. It can be understood that the rear end face of the part base can also be a curved surface, and a special curved surface engraving device can be used during engraving.

[0061] Reference Figure 6 In Step 3, place the part base in the bearing area of the bracket. At this time, the front end face of the part base fits with the bearing area; turn the bracket and the part base as a whole, apply glue to the limit block and place it in the limit through groove to bond and fix it with the front end face of the part base; turn the bracket and the part base as a whole again, and then place the bracket in the positioning groove of the base to ensure that the direction of the bracket on the base is correct (through the corresponding position marks on the bracket 2 and the base 1).

[0062] In step 4, keeping the position of the base unchanged, the bracket and the part base are removed from the base as a whole, and then the part and the limit block are taken out as a whole through the disassembly and assembly through hole in the middle of the bracket. At this time, the part base and the limit block are an integral whole.

[0063] The above is only a preferred embodiment of the present invention, which is merely illustrative rather than restrictive to the present invention. The structures and connection manners of the components in the present invention can all be changed. Any equivalent transformation and improvement made on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A processing method for a multi-color area part, characterized in that, it includes: Step 1: Process the part substrate according to the required shape. All or part of the part substrate is made of a transparent material. The part substrate has opposite front and rear end faces, and it is transparent between the front and rear end faces; Step 2: Spray paint on the rear end face of the part substrate; Step 3: Use a laser engraving carrier base. The laser engraving carrier base includes a bracket, a base, and a limit block. A loading area for loading the part to be processed is provided on the bracket. A limit through groove penetrating the bracket is provided on the loading area, and the shape of the loading area matches that of the part to be processed; the bottom surface of the base is a plane, and a positioning groove is provided on the upper end surface. The bracket is detachably installed in the positioning groove; the limit block is used to fix one end to the part to be processed and the other end is in clearance fit with the limit through groove; fix the base on the workbench of the laser engraving machine, position and place the part substrate in the loading area of the bracket, position and place the bracket in the positioning groove of the base, and perform laser engraving on the rear end face of the part substrate to remove the paint layer of the engraved part; Step 4: Remove the part substrate from the bracket, spray paint on the rear end face of the part substrate. The spraying range includes at least the area engraved last time. The paint used in this spraying operation is different from the paint used in the previous spraying operation. If the processing is completed, go to step 5; Step 5: Repeat step 3 and step 4 until the processing is completed.

2. The processing method for a multi-color area part according to claim 1, characterized in that, in step 4, the paint used in this spraying operation is different from the paint used in the previous spraying operation, including: the color of the paint used in this spraying operation is different from the color of the paint used in the previous spraying operation.

3. The processing method for a multi-color area part according to claim 1, characterized in that, in step 4, the paint used in this spraying operation is different from the paint used in the previous spraying operation, including: the appearance effect produced by the paint used in this spraying operation is different from the appearance effect produced by the paint used in the previous spraying operation.

4. The processing method for a multi-color area part according to claim 1, characterized in that, in step 3, positioning and placing the part substrate in the loading area of the bracket and positioning and placing the bracket in the positioning groove of the base includes: Place the part substrate in the loading area of the bracket. At this time, the front end face of the part substrate fits with the loading area; turn the bracket and the part substrate over as a whole, apply glue to the limit block and put it into the limit through groove to bond and fix it to the front end face of the part substrate; turn the bracket and the part substrate over as a whole again, and then place the bracket in the positioning groove of the base to ensure that the direction of the bracket on the base is correct.

5. The processing method for a multi-color area part according to claim 1, characterized in that, in step 4, removing the part substrate from the bracket includes: Keep the position of the base unchanged, remove the bracket and the part substrate as a whole from the base, and then remove the part substrate from the bracket. At this time, the part substrate and the limit block are an integral body.

6. A processing method for a multi-color area part as described in claim 1, characterized in that, in the step 1, the rear end face of the part substrate is a plane.

7. A processing method for a multi-color area part as described in claim 6, characterized in that, in the step 3, it further includes ensuring that the rear end face of the part substrate is horizontal before laser engraving the rear end face of the part substrate.

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