Automobile pipeline three-dimensional modeling method

Abstract

The application discloses a kind of automobile pipeline three-dimensional modeling methods, comprising the following steps: step 1, according to vehicle boundary, make pipeline direction;Step 2, create corrugated damping section inner boundary;Step 3, separately thicken corrugated damping section;Step 4, the two ends of corrugated damping section are rounded;Step 5, create clamp ring groove portion;Step 6, create surface stiffener and round;Step 7, create curved pipe joint portion;Step 8, according to air inlet hose peripheral piece envelope, make cutting avoidance and detail optimization.The application discloses a kind of air inlet hose three-dimensional modeling methods, modeling step is reasonable, no same feature is repeatedly created, workload is small, efficiency is high, accelerates design progress, shortens development cycle.

Description

Technical Field

[0001] This invention relates to the field of computer-aided design and modeling technology, and in particular to a three-dimensional modeling method for an air intake hose. Background Technology

[0002] Piping is one of the most important components of a car, especially the intake hose in the intake system. It primarily connects the air filter and the engine throttle body, guiding filtered clean air into the engine for combustion. It also serves a buffering and vibration-damping function, isolating engine vibrations and preventing them from being transmitted to the air filter along the intake hose. Therefore, the intake hose body often features a corrugated structure. To improve the buffering and vibration-damping effect of the corrugated structure, its wall thickness is often less than the pipe body wall thickness. To improve airtightness and reliable fixing, clamping grooves are installed at both ends of the intake hose. Additionally, the intake hose also has a bend pipe connector to connect to the bend pipe, guiding the oil and gas in the crankcase to the engine for combustion. To meet negative pressure resistance requirements, reinforcing ribs are added to the surface of the intake hose.

[0003] As mentioned above, intake hoses typically have corrugated structures, clamping grooves, curved pipe joints, surface reinforcing ribs, and other structures. Modeling intake hoses in 3D is a complex process, involving numerous repetitive creations of identical features, resulting in a large workload and low efficiency. For chief engineers, the ability to quickly and concisely construct a 3D model of the intake hose during the early design phase has become a primary requirement. Therefore, a new method for 3D modeling intake hoses needs to be developed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to realize a fast and simple three-dimensional modeling method for air intake hoses, which solves the problems of repeated creation of the same features, large workload and low modeling efficiency in existing modeling methods.

[0005] To achieve the above objectives, the technical solution adopted by this invention is: a three-dimensional modeling method for automotive piping, comprising the following steps:

[0006] Step 1: Determine the pipeline routing based on the vehicle's boundaries;

[0007] Step 2: Create the inner boundary of the corrugated damping section;

[0008] Step 3: Thicken the corrugated damping section separately;

[0009] Step 4: Chamfer the outer corners at both ends of the corrugated damping section;

[0010] Step 5: Create the clamp ring groove section;

[0011] Step 6: Create surface reinforcing ribs and round the corners;

[0012] Step 7: Create the curved pipe joint section;

[0013] Step 8: Perform cutting and avoidance and detail optimization based on the surrounding components of the intake hose.

[0014] The vehicle pipeline is the vehicle intake hose.

[0015] In step 1, the clearance requirements between the intake hose and surrounding components need to be considered, and the inner boundary direction of the pipeline needs to be determined.

[0016] In step 2, the more ripples there are, the better the vibration reduction effect. Make as many ripples as possible if space allows.

[0017] In step 3, the wall thickness of the corrugated vibration damping section is less than the thickness of the pipeline body, which enhances the vibration damping effect.

[0018] In step 4, the outer radius of the junction between the corrugated vibration damping section and the pipeline body is prioritized.

[0019] In step 5, a matching clamp ring groove is created according to the width of the worm gear clamp, with the width of the clamp ring groove from the edge of the clamp on one side being 1mm-3mm; at the same time, the inner boundary shape of the clamp ring groove is created according to the air filter outlet and the engine throttle valve interface.

[0020] In step 6, the surface rib structure of the intake hose body is a cylindrical rib.

[0021] In step 7, the part of the curved pipe joint is created as a curved pipe joint boss.

[0022] In step 8, the gap is checked based on the envelope of the intake hose peripheral components, selective cutting and avoidance are performed, and a limiting groove and sealing ring rib structure are added.

[0023] The present invention provides a three-dimensional modeling method for air intake hoses. The modeling steps are reasonable, there is no repeated creation of the same features, the workload is small, the efficiency is high, the design progress is accelerated, and the development cycle is shortened. It solves the problems of existing modeling methods, which involve a lot of repeated creation of the same features, resulting in a large workload and low modeling efficiency. Attached Figure Description

[0024] The following is a brief explanation of the content and markings in each of the accompanying drawings in this specification:

[0025] Figure 1 This is a flowchart of a three-dimensional modeling method for an intake hose according to the present invention;

[0026] Figure 2 This is a simplified diagram of the pipeline routing in this invention;

[0027] Figure 3 This is a simplified diagram of the inner boundary pipeline of the corrugated vibration damping section in this invention;

[0028] Figure 4 This is a simplified diagram of the pipeline with thickened corrugated vibration damping section in this invention;

[0029] Figure 5 This is a schematic diagram of the outer chamfer at the connection point between the corrugated vibration damping section and the pipeline in this invention;

[0030] Figure 6 This is a schematic diagram of the pipeline with clamping groove in this invention;

[0031] Figure 7 This is a schematic diagram of the pipeline with surface reinforcing ribs in this invention;

[0032] Figure 8 This is a schematic diagram of a pipeline with a curved pipe joint in this invention;

[0033] Figure 9 This is a rendering of the completed model of an intake hose in this invention;

[0034] The markings in the above figures are as follows: 1. Pipeline route, 2. Inner boundary of corrugated vibration damping section, 3. Thickened corrugated vibration damping section, 4. Thickened pipeline body, 5. Rounded corner, 6. Clamping ring groove, 7. Surface reinforcing rib, 8. Twisted pipe joint, 9. Limiting groove, 10. Sealing ring rib. Detailed Implementation

[0035] The following description, with reference to the accompanying drawings, details the specific implementation of the present invention, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of the present invention.

[0036] like Figure 1 As shown, this invention provides a three-dimensional modeling method for air intake hoses, referring to... Figures 2 to 9 As a preferred embodiment, the specific modeling steps are described in detail below:

[0037] Step 1: Determine the pipeline routing based on the vehicle boundary. Considering the clearance requirements between the intake hose and surrounding components, determine the optimal routing of the pipeline's inner boundary. To avoid interference, the clearance between the intake hose and surrounding static components is generally greater than 10mm, and the clearance with dynamic components is greater than 15mm. To avoid heat damage, the clearance between the intake hose and heat sources with insulation measures is greater than 40mm, and the clearance with heat sources without insulation measures is greater than 60mm.

[0038] Step 2: Create the inner boundary 2 of the corrugated vibration reduction section; the more corrugations, the better the vibration reduction effect. Create as many corrugations as possible if space allows. In this embodiment, three corrugations are used as an example.

[0039] Step 3: Thicken the corrugated vibration damping section separately; to enhance the vibration damping effect, the wall thickness of the corrugated vibration damping section is less than the thickness of the pipeline body. In this invention, the preferred wall thickness of the corrugated vibration damping section is 3mm.

[0040] Step 4: Chamfer the outer corners at both ends of the corrugated vibration damping section; prioritize chamfering the outer corners at the junction of the corrugated vibration damping section and the pipeline body.

[0041] Step 5: Create the clamp ring groove; based on the width of the worm gear clamp, create a matching clamp ring groove 6. The width of the clamp ring groove 6 from the edge of the clamp on one side should be 1mm-3mm; at the same time, create the inner boundary shape of the clamp ring groove 6 according to the air filter outlet and the engine throttle valve interface.

[0042] Step 6: Create surface reinforcing ribs and round the corners; create the surface reinforcing rib 7 structure of the intake hose body. The surface reinforcing rib 7 can be a circular rib, a trapezoidal rib, or a rectangular rib. In this invention, the preferred surface rib structure is a circular rib. It should be noted that if the design prioritizes optimal structural stiffness, a circular rib is selected; if the design prioritizes lowest cost, a rectangular rib is preferred; and if both cost and pressure resistance are considered, a trapezoidal rib is preferred.

[0043] Step 7: Create the curved pipe joint section; create the curved pipe joint boss and the joint. The joint can be a common annular limiting joint, a quick-connect joint, or an umbrella structure. The connection method between the joint and the curved pipe joint boss can be a clamp connection or a vulcanized interference connection. Obviously, the specific implementation method is not limited to the above methods.

[0044] Step 8: Perform cut-off and detail optimization based on the envelope of the intake hose perimeter. Check the gap based on the envelope of the intake hose perimeter, and cut off if necessary. At the same time, add structures such as limiting groove 9 and sealing ring rib 10.

[0045] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A method for three-dimensional modeling of automotive piping, characterized in that, Includes the following steps: Step 1: Determine the pipeline routing based on the vehicle's boundaries; Step 2: Create the inner boundary of the corrugated damping section; Step 3: Thicken the corrugated damping section separately; Step 4: Chamfer the outer corners at both ends of the corrugated damping section; Step 5: Create the clamp ring groove section; Step 6: Create surface reinforcing ribs and round the corners; Step 7: Create the curved pipe joint section; Step 8: Perform cutting and avoidance and detail optimization based on the envelope of the intake hose perimeter components. Check the gap based on the envelope of the intake hose perimeter components, selectively perform cutting and avoidance, and add limiting grooves and sealing ring rib structures. The vehicle pipeline is the vehicle intake hose; In step 1, the clearance requirements between the intake hose and surrounding components need to be considered, and the direction of the inner boundary of the pipeline needs to be determined. In step 5, a matching clamp ring groove is created based on the width of the worm gear clamp, with the width of the clamp ring groove from the edge of the clamp on one side being 1mm-3mm; at the same time, the inner boundary shape of the clamp ring groove is created based on the air filter outlet and the engine throttle valve interface.

2. The method for three-dimensional modeling of automotive piping according to claim 1, characterized in that: In step 2, the more ripples there are, the better the vibration reduction effect. Make as many ripples as possible if space allows.

3. The method for three-dimensional modeling of automotive piping according to claim 1, characterized in that: In step 3, the wall thickness of the corrugated vibration damping section is less than the thickness of the pipeline body, which enhances the vibration damping effect.

4. The method for three-dimensional modeling of automotive piping according to claim 1, characterized in that: In step 4, the outer radius of the junction between the corrugated vibration damping section and the pipeline body is prioritized.

5. The method for three-dimensional modeling of automotive piping according to claim 1, characterized in that: In step 6, the surface rib structure of the intake hose body is a cylindrical rib.

6. The method for three-dimensional modeling of automotive piping according to claim 1, characterized in that: In step 7, the part of the curved pipe joint is created as a curved pipe joint boss.

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