Post-treatment cutting tool for high-strength carbon fiber composite automobile roof

Abstract

The utility model relates to a post-processing cutting tool for a high-strength carbon fiber composite automobile top cover, belongs to the technical field of new energy automobile parts, and solves the problems of layering, burrs, batch silk, multiple clamping times and low production efficiency when a high-strength carbon fiber composite product is subjected to post-processing cutting in the prior art. The utility model discloses a high-strength carbon fiber composite material automobile top cover cutting post-processing tool. The tool comprises a tool body, an air guide system and a sealing assembly; the tool body is provided with a sealing assembly mounting groove, and the tool body and a to-be-cut product form a closed cavity through a sealing assembly; the closed cavity is communicated with the air guide system, and air in the closed cavity is exhausted through the air guide system to reach a negative pressure state. And high-efficiency and high-quality post-treatment cutting of the composite material automobile roof products is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy automobile parts, in particular to a post-processing cutting tool for automobile top covers of high-strength carbon fiber composite materials. Background Art

[0002] In order to reduce automobile energy consumption, it is unstoppable to change vehicle components from metal materials to lighter carbon fiber composite materials. Lighter carbon fiber composite materials will directly affect the overall power performance and fuel economy of the car, and lighter carbon fiber composite materials can also reduce production costs.

[0003] However, in the production process of high-strength carbon fiber composite materials, due to the limitations of the production process, the finished product will have excess or burrs. In order to obtain qualified products, the high-strength carbon fiber composite materials need to be post-processed and cut. However, in the process of using a five-axis machining center to cut high-strength carbon fiber composite products, there will be defects such as delamination, burrs, and thread caused by improper product fixation, which affects product quality. In addition, during the cutting process, the general fixture needs to be clamped multiple times to complete the product processing, which affects production efficiency. Utility Model Content

[0004] In view of the above analysis, the utility model aims to provide a post-processing cutting tool for high-strength carbon fiber composite material automobile roof covers, so as to solve at least one of the problems of delamination, burrs, thread defects, multiple clamping times and low production efficiency during post-processing cutting of existing high-strength carbon fiber composite material products.

[0005] The purpose of this utility model is mainly achieved through the following technical solutions:

[0006] A high-strength carbon fiber composite material automobile top cover cutting post-processing tool, comprising a tool body, an air guide system and a sealing component;

[0007] The tool body is provided with a sealing assembly installation groove, and the tool body forms a closed cavity with the product to be cut through the sealing assembly;

[0008] The enclosed cavity is communicated with the air guide system, and the air in the enclosed cavity is discharged through the air guide system to achieve a negative pressure state.

[0009] Furthermore, the gas guide system includes a vacuum gas guide tube, a gas guide tube joint, and a vacuum gas guide groove; one end of the vacuum gas guide tube is connected to the gas guide tube joint, which is connected to an external vacuum device through the gas guide tube joint, and the other end of the vacuum gas guide tube is connected to the vacuum gas guide groove, and the closed cavity is evacuated through the vacuum gas guide tube and the vacuum gas guide groove.

[0010] Specifically, the vacuum air guide grooves are distributed on the upper surface of the tooling body; and the vacuum air guide pipes are distributed inside the tooling body.

[0011] It should be noted that the vacuum air guide groove includes a long vacuum air guide groove and a short vacuum air guide groove. The long vacuum air guide groove and the short vacuum air guide groove are arranged in a field shape, and the adjacent sides of adjacent field shapes are shared to form a vacuum air guide groove in which the long vacuum air guide groove and the short vacuum air guide groove are interconnected.

[0012] Furthermore, the sealing component is a rectangular plastic strip that matches the size of some vacuum air guide grooves, including long plastic strips and short plastic strips, which are respectively installed on the outermost circle of the long vacuum air guide grooves and the short vacuum air guide grooves; the long vacuum air guide grooves and the short vacuum air guide grooves in the outermost circle serve as sealing component installation grooves.

[0013] Specifically, the cross-section of the vacuum gas guide groove is an arc shape with a diameter of 8 mm and a height of 5 mm.

[0014] Exemplarily, the vacuum air guide tube has a diameter of 12 mm, and the vertical air guide tube is arranged at the center position of the cross in the field-shaped structure of the vacuum air guide groove, with a depth of 80 mm.

[0015] Preferably, the air guide tube joint is connected to the vacuum air guide tube through a threaded seal.

[0016] Specifically, the material of the post-cutting processing tool is 6082 aluminum alloy.

[0017] Preferably, the plastic strip is made of rubber.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] 1. The utility model combines the product to be processed with the post-processing cutting tool into a closed cavity through a sealing component, and fixes the product by vacuum adsorption. The connection is stable, the adhesion is strong, and it is not easy to slide, which improves the cutting stability and avoids cutting defects such as delamination, burrs, and thread defects caused by improper product fixation.

[0020] 2. The utility model adjusts the vacuum adsorption area by controlling the size and number of the vacuum air guide grooves, and regulates the adsorption strength between the product and the tooling to adapt to different cutting stresses and cutting processes, with high flexibility.

[0021] 3. The utility model optimizes the structural layout of the vacuum air guide groove and adopts a field-shaped layout to reduce ineffective circulation of gas and improve vacuuming efficiency. The field-shaped layout enables the gas to flow evenly during the vacuuming process and the pressure in the cavity to be evenly distributed, thereby preventing local deformation or collapse of the product to be processed under negative pressure.

[0022] 4. The utility model fixes the product to be processed and the cutting tool by vacuum adsorption, which can reduce the number of clamping times, make the installed force of the product to be processed more uniform, and prevent deformation due to force; and the structure is simple, easy to disassemble and assemble, and improve the post-processing efficiency.

[0023] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0025] Figure 1 It is a schematic diagram of the structure of each part of the cutting tool of the utility model and a schematic diagram of the assembly relationship with the product to be processed;

[0026] Figure 2 This is the appearance diagram of the top cover product to be processed in the utility model;

[0027] Figure 3 This is the outline drawing of the cutting tool of the utility model;

[0028] Figure 4 for Figure 3 Section view in the AA direction;

[0029] Figure 5 for Figure 4 A partial enlarged view of part B.

[0030] Reference numerals:

[0031] 1-Top cover products to be processed; 2-Long black plastic strip; 3-Short black plastic strip; 4-Post-processing cutting tool; 5-Vacuum long air guide groove; 6-Vacuum short air guide groove; 7-Vacuum air guide pipe; 8-Air guide pipe joint. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0033] A specific embodiment of the utility model discloses a high-strength carbon fiber composite material automobile top cover cutting post-processing tool, including a tool body, an air guide system and a sealing component;

[0034] The tool body is provided with a sealing assembly installation groove, and the tool body forms a closed cavity with the product to be cut through the sealing assembly;

[0035] The enclosed cavity is communicated with the air guide system, and the air in the enclosed cavity is discharged through the air guide system to achieve a negative pressure state.

[0036] The utility model combines the product to be processed with the post-processing cutting tool into a closed cavity through a sealing component, fixes the product through vacuum adsorption, has a stable connection, strong adhesion, is not easy to slide, and improves the cutting stability.

[0037] Specifically, the tool body structure corresponds to the shape of the product to be processed.

[0038] In a possible design, the tool body is a rectangular parallelepiped structure, including an upper surface, a lower surface, two long side surfaces and two short side surfaces.

[0039] Furthermore, the gas guide system includes a vacuum gas guide tube, a gas guide tube joint, and a vacuum gas guide groove; one end of the vacuum gas guide tube is connected to the gas guide tube joint, which is connected to an external vacuum device through the gas guide tube joint, and the other end of the vacuum gas guide tube is connected to the vacuum gas guide groove, and the closed cavity is evacuated through the vacuum gas guide tube and the vacuum gas guide groove.

[0040] In a possible design, the vacuum air guide grooves are distributed on the upper surface of the tooling body; and the vacuum air guide pipes are distributed inside the tooling body.

[0041] In a possible design, the vacuum air duct includes a vertical air duct and a horizontal air duct, the upper portion of the vertical air duct is connected to the bottom of the vacuum air duct groove, one end of the horizontal air duct is vertically connected to the lower portion of the vertical air duct, and the other end of the horizontal air duct is located on a long side surface of the tooling body and is connected to an external vacuum device through an air duct joint.

[0042] Specifically, the vacuum air guide groove includes a long vacuum air guide groove and a short vacuum air guide groove. The long vacuum air guide groove and the short vacuum air guide groove are arranged in a field shape, and adjacent sides of adjacent field shapes are shared to form a vacuum air guide groove in which the long vacuum air guide groove and the short vacuum air guide groove are interconnected.

[0043] The dimensions, quantity and position of the vacuum air guide grooves are designed according to the shape of the product to be processed;

[0044] The internal arrangement structure of the vacuum gas guide groove adopts a field-shaped layout to reduce the ineffective circulation of gas and improve the vacuuming efficiency. The field-shaped layout makes the gas flow evenly during the vacuuming process, so that the pressure in the cavity is evenly distributed, preventing the processed product from local deformation or collapse under negative pressure.

[0045] Furthermore, the tool body forms a closed cavity with the product to be cut through a sealing component;

[0046] In order to form an enclosed cavity, the sealing component is a rectangular plastic strip that matches the size of some vacuum air guide grooves, including long plastic strips and short plastic strips, which are respectively installed on the outermost circle of the long vacuum air guide grooves and the short vacuum air guide grooves; that is, the outermost circle of the long vacuum air guide grooves and the short vacuum air guide grooves are used as sealing component installation grooves to achieve sealing between the tooling body and the product to be cut, thereby forming a sealed cavity.

[0047] Specifically, the cross-section of the vacuum air guide groove is an arc shape with a diameter of 8 mm and a height of 5 mm, and the distribution area is designed in five groups according to the cutting stress of the top cover products to be processed;

[0048] The arc-shaped vacuum air guide groove makes the air flow path smoother, effectively reducing turbulence and pressure loss, and further avoiding local deformation or collapse of the product to be processed under negative pressure.

[0049] The outer contours of the long plastic strip and the short plastic strip fit with the inner contours of the outermost circle of the vacuum long air guide groove and the vacuum short air guide groove respectively, with a diameter of 8mm, and are completely inserted into the outermost circle of the vacuum long air guide groove and the vacuum short air guide groove. The height direction is 3mm higher than the air guide groove, and the higher part fits with the corresponding part of the top cover product to be processed; the size matching relationship between the plastic strip and the air guide groove ensures that the position of the plastic strip is fixed and not easy to fall out, further ensuring high sealing performance;

[0050] In a possible design, the vertical air duct is arranged at the center position of the cross in the field-shaped structure of the vacuum air duct. The vacuum air duct has a diameter of 12 mm and a depth of 80 mm, with a total of five groups. This can maintain a high vacuuming efficiency and uniform gas flow during the vacuuming process, thereby ensuring uniform suction at different positions in the tooling adsorption area.

[0051] Preferably, the air guide tube joint is connected to the vacuum air guide tube through a threaded seal.

[0052] When evacuating the air, screw the air pipe joint into the vacuum air pipe, and ensure that it is sealed before evacuating the air to achieve the vacuum degree required for processing the product; after the processing is completed, unscrew the air pipe joint from the vacuum air pipe and remove the product.

[0053] Specifically, the material of the post-cutting processing tool is 6082 aluminum alloy.

[0054] Preferably, the plastic strip is made of rubber.

[0055] When the post-cutting processing tool 4 is used, the post-processing tool 4 is first fixed to the worktable of the machining center, and then the long plastic strip 2 and the short plastic strip 3 are respectively installed on the outermost circle of the vacuum long air guide groove 5 and the vacuum short air guide groove 6;

[0056] Make the top cover product to be processed completely match the shape of the tooling and place it in the corresponding position of the tooling;

[0057] The air guide pipe joint 8 is connected to the horizontal air guide pipe of the vacuum air guide pipe 7 by means of a threaded connection, and the air in the vacuum long air guide groove 5 and the vacuum short air guide groove 6 is simultaneously sucked through an external vacuum device to make them reach a negative pressure state with a vacuum degree of 1MPa, thereby fixing the top cover-type product 1 to be processed; after the product 1 to be processed and the cutting tool 4 are fixed, the whole is placed in a CNC machine tool for post-cutting processing; after the processing is completed, the air guide pipe joint 8 is unscrewed to remove the product.

[0058] To sum up, the utility model combines the product to be processed with the post-processing cutting tool into a closed cavity through a sealing component, and fixes the product through vacuum adsorption. The connection is stable, the adhesion is strong, and it is not easy to slide, thereby improving the cutting stability and avoiding cutting defects such as delamination, burrs, and thread cuts caused by improper product fixation. The structural layout of the vacuum air guide groove is optimized, and a field-shaped layout is adopted to reduce the ineffective circulation of gas, improve the vacuuming efficiency, and make the gas flow evenly during the vacuuming process. The pressure in the cavity is evenly distributed, thereby preventing the product to be processed from being locally deformed or collapsed under negative pressure. The product to be processed and the cutting tool are fixed by vacuum adsorption, which can reduce the number of clamping times, make the installed force of the product to be processed more uniform, and prevent deformation due to force.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A post-processing cutting tool for high-strength carbon fiber composite material automobile roof, characterized in that: It includes a tooling body, an air guide system and a sealing component; The tool body is provided with a sealing assembly installation groove, and the tool body forms a closed cavity with the product to be cut through the sealing assembly; The enclosed cavity is communicated with the air guide system, and the air in the enclosed cavity is discharged through the air guide system to achieve a negative pressure state.

2. The post-processing cutting tool according to claim 1, characterized in that: The gas guide system includes a vacuum gas guide tube, a gas guide tube joint, and a vacuum gas guide groove; one end of the vacuum gas guide tube is connected to the gas guide tube joint, which is connected to an external vacuum device through the gas guide tube joint, and the other end of the vacuum gas guide tube is connected to the vacuum gas guide groove, and the closed cavity is evacuated through the vacuum gas guide tube and the vacuum gas guide groove.

3. The post-processing cutting tool according to claim 2, characterized in that: The vacuum air guide grooves are distributed on the upper surface of the tooling body; and the vacuum air guide pipes are distributed inside the tooling body.

4. The post-processing cutting tool according to claim 3, characterized in that: The vacuum gas guide groove comprises a long vacuum gas guide groove and a short vacuum gas guide groove, wherein the long vacuum gas guide groove and the short vacuum gas guide groove are arranged in a field shape, and adjacent sides of adjacent field shapes are shared to form a vacuum gas guide groove in which the long vacuum gas guide groove and the short vacuum gas guide groove are interconnected.

5. The post-processing cutting tool according to claim 4, characterized in that: The sealing component is a rectangular plastic strip that matches the size of some vacuum air guide grooves, including a long plastic strip and a short plastic strip, which are respectively installed on the outermost circle of the long vacuum air guide groove and the short vacuum air guide groove; the long vacuum air guide groove and the short vacuum air guide groove on the outermost circle serve as sealing component installation grooves.

6. The post-processing cutting tool according to claim 4, characterized in that: The cross section of the vacuum air guide groove is an arc shape with a diameter of 8 mm and a height of 5 mm.

7. The post-processing cutting tool according to claim 3, characterized in that: The vacuum air guide tube includes a vertical air guide tube and a horizontal air guide tube; the diameter of the vacuum air guide tube is 12 mm, and the vertical air guide tube is arranged at the center position of the cross in the field-shaped structure of the vacuum air guide groove, with a depth of 80 mm.

8. The post-processing cutting tool according to claim 3, characterized in that: The air guide pipe joint is connected to the vacuum air guide pipe through thread sealing.

9. The post-processing cutting tool according to claim 1, characterized in that: The material of the post-processing cutting tool is 6082 aluminum alloy.

10. The post-processing cutting tool according to claim 5, characterized in that: The material of the plastic strip is rubber.

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