Rapid forming die for air inlet channel of engine

Abstract

The utility model relates to the technical field of engine air inlet channel dies, in particular to a rapid forming die for an engine air inlet channel, which comprises a hollow shell provided with a first opening and a second opening; the first cover body covers the first opening; the second cover body covers the second opening; one end of the first telescopic assembly is arranged on the first cover body, and the other end of the first telescopic assembly extends into the shell; one end of the second telescopic assembly is arranged on the second cover body, the other end of the second telescopic assembly extends into the shell, and the other end of the second telescopic assembly is used for abutting against the other end of the first telescopic assembly. According to the rapid forming die for the air inlet channel of the engine, a convoluted casting core is rapidly formed mainly through the telescopic structure of the first telescopic assembly and the second telescopic assembly, and the casting core can be rapidly removed.

Description

Technical Field

[0001] The utility model relates to the technical field of engine air intake duct moulds, and more specifically, to a rapid prototyping mould for an engine air intake duct. Background Art

[0002] The intake pipe of an internal combustion engine refers to the air pipe that guides the gas required for combustion of the internal combustion engine into the engine. The intake pipe must ensure sufficient flow area and smoothness. The intake pipe shapes of different shapes, lengths, and cross-sectional areas represent the design requirements of this engine. In terms of shape, the intake pipe can be divided into vertical intake duct and spiral intake duct.

[0003] The vertical intake duct has a small intake resistance, which is conducive to the formation of resonance at high speed, improving the intake efficiency. It is also convenient for the arrangement of fuel injectors. It is generally suitable for engines that emphasize high-speed performance. The swirl intake duct can help generate vortexes during intake, improve the mixing degree of air and gasoline, and help improve the combustion efficiency in the cylinder at low speed. It is generally suitable for engines that emphasize low-speed performance.

[0004] In the prior art, when processing the swirl inlet, it is usually processed by casting due to its swirl shape, which makes its production inefficient. Therefore, it is necessary to design a rapid prototyping mold for the engine inlet. Utility Model Content

[0005] The main purpose of the utility model is to provide a rapid prototyping die for an engine air intake duct, aiming to solve the problem of low processing efficiency of the engine swirl air intake duct in the prior art.

[0006] In order to solve the above technical problems, a rapid prototyping mold for an engine air intake is proposed, comprising:

[0007] A shell is hollow and has a first opening and a second opening;

[0008] A first cover body, covering the first opening;

[0009] A second cover body, covering the second opening;

[0010] a first telescopic component, one end of which is disposed on the first cover body, and the other end of which extends into the housing;

[0011] A second telescopic component, one end of the second telescopic component is arranged on the second cover body, the other end of the second telescopic component extends into the shell, and the other end of the second telescopic component is used to abut against the other end of the first telescopic component.

[0012] In any of the above technical solutions, further, the first telescopic component includes:

[0013] A first fixing member, fixedly disposed on the first cover;

[0014] A plurality of connection components and a plurality of arc-shaped members;

[0015] The first fixing member and each of the arc-shaped members are connected in sequence through each of the connecting components. One of the connecting components is provided between the first fixing member and the arc-shaped member adjacent thereto, and one of the connecting components is provided between any two adjacent arc-shaped members.

[0016] The arc-shaped member and / or the first fixing member are provided with a receiving groove, and the receiving groove is used for hiding the connecting component.

[0017] In any of the above technical solutions, further, the connecting assembly between the first fixing member and the arc-shaped member adjacent thereto comprises:

[0018] A first connecting member, one end of which is hinged to the first fixing member;

[0019] a second connecting member, one end of which is hinged to the arc-shaped member connected to the first fixing member;

[0020] A rotation shaft, the other end of the first connecting member and the other end of the second connecting member are both hinged to the rotation shaft.

[0021] In any of the above technical solutions, further, the connecting assembly between the first fixing member and the arc-shaped member adjacent thereto further includes:

[0022] At least two torsion springs, at least one of which is disposed between the first connecting member and the first fixing member, and at least one of which is disposed between the second connecting member and the arc-shaped member adjacent to the first fixing member.

[0023] In any of the above technical solutions, further, when the first telescopic component and the second telescopic component are abutted, the first telescopic component includes a first straight line segment and a first arc segment, the second telescopic component includes a second straight line segment and a second arc segment, and the first arc segment is a 90-degree arc, and the second arc segment is a 180-degree arc.

[0024] In any of the above technical solutions, further, when the first telescopic component and the second telescopic component are abutted, the first straight line segment and the first arc segment are in a first plane, the second straight line segment and the second arc segment are in a second plane, and the first plane and the second plane are perpendicular to each other.

[0025] The beneficial effects are:

[0026] 1. The engine air intake rapid prototyping mold of the utility model forms the outer shell required for casting through the outer shell, the first cover body and the second cover body, which is convenient for pouring casting liquid into the outer shell for casting, and also convenient for disassembling the first cover body and the second cover body after casting to obtain the manufactured parts;

[0027] 2. By arranging the first telescopic assembly and the second telescopic assembly on the first cover body and the second cover body respectively, it is convenient to form a casting core required for casting when the first telescopic assembly and the second telescopic assembly are in contact, so as to obtain a swirling airway after casting. At the same time, the first telescopic assembly and the second telescopic assembly can be directly withdrawn after casting by means of the telescopic structure of the first telescopic assembly and the second telescopic assembly, eliminating the core casting and core removal process in the prior art, greatly improving the casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the cross-sectional structure of a rapid prototyping die for an engine air intake duct of the utility model;

[0030] Figure 2 It is a schematic cross-sectional structure diagram of a first telescopic component in a rapid prototyping die for an engine air intake duct of the utility model;

[0031] Figure 3 It is a schematic cross-sectional structure diagram of a second telescopic component in a rapid prototyping die for an engine air intake duct of the utility model;

[0032] Figure 4 It is a schematic diagram of the unfolded structure of the first telescopic component in a rapid prototyping die for an engine air intake duct of the utility model;

[0033] Figure 5 The utility model is a three-dimensional structural schematic diagram of an arc-shaped part and a connecting component in a rapid prototyping die for an engine air intake duct.

[0034] The following are the descriptions of the reference numerals:

[0035] 1. housing; 101. first cover; 102. second cover;

[0036] 2. First telescopic component; 201. First fixing member; 202. Connecting component; 203. Arc-shaped member; 204. First arc-shaped member; 205. Second arc-shaped member; 206. Third arc-shaped member; 207. Fourth arc-shaped member; 208. First connecting member; 209. Second connecting member; 210. Rotating shaft;

[0037] 3. Second telescopic assembly; 301. Second fixing member. DETAILED DESCRIPTION

[0038] Below, the example embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0039] It should be noted that, as shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0040] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0043] The utility model proposes a rapid forming mold for an engine air intake duct, which mainly forms a spiral casting core quickly by means of the telescopic structure of a first telescopic component and a second telescopic component, thereby improving the forming speed of the casting core; and removes the casting core quickly by means of the telescopic structure of the first telescopic component and the second telescopic component, thereby improving the core removal speed; and the first telescopic component and the second telescopic component can be reused to improve the casting speed as a whole.

[0044] The following embodiments are used to describe in detail an engine intake rapid prototyping mold of the present application.

[0045] In this embodiment, if Figures 1 to 5 As shown, the engine air intake rapid prototyping mold includes:

[0046] The housing 1 is hollow and has a first opening and a second opening;

[0047] A first cover body 101, covering the first opening;

[0048] A second cover 102, covering the second opening;

[0049] A first telescopic component 2, one end of the first telescopic component 2 is disposed on the first cover 101, and the other end of the first telescopic component 2 extends into the housing 1;

[0050] The second telescopic component 3 has one end disposed on the second cover 102 , and the other end of the second telescopic component 3 extends into the housing 1 , and the other end of the second telescopic component 3 is used to abut against the other end of the first telescopic component 2 .

[0051] In the present technical solution, the housing 1 is a box-shaped hollow structure, the first opening is arranged on the upper side of the housing 1, and the second opening is arranged on the left side of the housing 1. The first cover 101 covers the upper side of the housing 1, and the second cover 102 covers the left side of the housing 1. The inner side of the housing 1, the inner side of the first cover 101 and the second cover 102 are provided with special-shaped protrusions (not shown in the figure), and the special-shaped protrusions on each side are respectively adapted to the shape of the outer side wall of the required casting. The first telescopic assembly 2 is detachably fixed to the inner side of the first cover 101, and the second telescopic assembly 3 is detachably fixed to the inner side of the second cover 102.

[0052] When in use, the second cover 102 is covered on the left side of the shell 1, and the first cover 101 is covered on the upper side of the shell 1. Due to the limitation of the space inside the shell 1 and the limitation of the structure of the first telescopic assembly 2 and the second telescopic assembly 3, the end of the first telescopic assembly 2 away from the first cover 101 abuts against the end of the second telescopic assembly 3 away from the second cover 102, forming a swirling casting core. Afterwards, pouring is performed in the shell 1, and the positions of the first telescopic assembly 2 and the second telescopic assembly 3 occupy part of the space that can be poured. When the pouring liquid cools, the first telescopic assembly 2 is removed through the first cover 101, and the second telescopic assembly 3 is removed through the second cover 102. The space previously occupied by the first telescopic assembly 2 and the second telescopic assembly 3 forms a swirling airway.

[0053] In some technical solutions, the first cover body 101 is provided with a through hole for pouring.

[0054] In this embodiment, the first telescopic assembly 2 includes:

[0055] A first fixing member 201 is fixedly disposed on the first cover body 101;

[0056] A plurality of connecting components 202 and a plurality of arc-shaped members 203;

[0057] The first fixing member 201 and each arc-shaped member 203 are sequentially connected through each connecting assembly 202. A connecting assembly 202 is provided between the first fixing member 201 and the arc-shaped member 203 adjacent thereto, and a connecting assembly 202 is provided between any two adjacent arc-shaped members 203.

[0058] The arc-shaped member 203 and / or the first fixing member 201 are provided with a receiving groove, and the receiving groove is used for hiding the connecting component 202 .

[0059] In the present technical solution, the first fixing member 201 is a linear cylindrical structure, fixed to the lower side of the first cover 101. When the arc-shaped members 203 are attached to each other, the whole is an arc-shaped cylindrical structure, that is, the arc-shaped cylindrical member is divided into several equal parts to form each arc-shaped member 203, and the angle between the two side surfaces of the arc-shaped member 203 and the arc center thereof is 5° to 22.5°.

[0060] Taking the example that the angle between the two side surfaces of the arc member 203 and the arc center is 22.5°, there are four arc members 203, which are named the first arc member 204, the second arc member 205, the third arc member 206 and the fourth arc member 207 in the direction away from the first fixing member 201. The arc member 203 connected to the first fixing member 201 is the first arc member 204.

[0061] A connection assembly 202 is provided between the first fixing member 201 and the first curved member 204, between the first curved member 204 and the second curved member 205, between the second curved member 205 and the third curved member 206, and between the third curved member 206 and the fourth curved member 207. The connection assembly 202 enables the first curved member 204 to the fourth curved member 207 to move with the first cover 101 when the first fixing member 201 is pulled.

[0062] The side of the first fixing member 201 close to the first arc member 204, the two sides from the first arc member 204 to the third arc member 206, and the side of the fourth arc member 207 close to the third arc member 206 are all provided with receiving grooves, and each connecting component 202 is fixed at each receiving groove.

[0063] The receiving groove is provided to hide the connecting component 202, so that the first fixing member 201, the first arc member 204, the second arc member 205, the third arc member 206 and the fourth arc member 207 can abut in sequence to form a desired arc cylindrical structure.

[0064] The structure of the second telescopic assembly 3 is similar to that of the first telescopic assembly 2 , and includes a second fixing member 301 , a plurality of connecting members 202 and a plurality of arc-shaped members 203 .

[0065] In some technical solutions, the angle between the two side surfaces of the arc-shaped member 203 and the arc center thereof is 6°, 7.5°, 9°, 11.25° or 15°.

[0066] It is worth mentioning that in the above technical solution, for the sake of structural symmetry, accommodating grooves are provided on both sides of the first fixing member 201, the first to arc-shaped member 204 and the third arc-shaped member 206, and on the side of the fourth arc-shaped member 207 close to the third arc-shaped member 206. In actual design, the accommodating groove may be provided on only one of the two adjacent ones. For example, if an accommodating groove is provided on the first fixing member 201, then the accommodating groove may not be provided on the side of the first arc-shaped member 204 close to the first fixing member 201, and the purpose of hiding the connecting component 202 can also be achieved.

[0067] In this embodiment, the connection assembly 202 between the first fixing member 201 and the arc-shaped member 203 adjacent thereto includes:

[0068] A first connecting member 208, one end of which is hinged to the first fixing member 201;

[0069] A second connecting member 209, one end of which is hinged to the arc-shaped member 203 connected to the first fixing member 201;

[0070] The rotating shaft 210 , the other end of the first connecting member 208 and the other end of the second connecting member 209 are all hinged to the rotating shaft 210 .

[0071] In the present technical solution, the connecting component 202 between the first fixing member 201 and the adjacent arc-shaped member 203 is used for explanation: the first connecting member 208 and the second connecting member 209 are both rod-shaped members, and the first connecting member 208 and the second connecting member 209 are both arranged in two, symmetrically arranged front to back, the top end of the first connecting member 208 is hinged in the receiving groove of the first fixing member 201, the bottom end of the second connecting member 209 is hinged in the receiving groove of the first arc-shaped member 204, and the bottom end of the first connecting member 208 and the top end of the second connecting member 209 are both hinged to the rotating shaft 210.

[0072] The first connecting member 208, the second connecting member 209 and the rotating shaft 210 are provided at the same time, so that when the first fixing member 201 moves, the arc-shaped member 203 can move in the same area as the first fixing member 201, so that the multiple arc-shaped cylindrical arc-shaped members 203 can move in the spiral airway after casting, so that the first telescopic component 2 and the second telescopic component 3 can be quickly pulled out from the cast component.

[0073] In this embodiment, the connection assembly 202 between the first fixing member 201 and the arc-shaped member 203 adjacent thereto further includes:

[0074] At least two torsion springs (not shown), at least one torsion spring is disposed between the first connecting member 208 and the first fixing member 201 , and at least one torsion spring is disposed between the second connecting member 209 and the arc member 203 adjacent to the first fixing member 201 .

[0075] In the present technical solution, four torsion springs (not shown in the figure) are provided, and one torsion spring is provided at the hinges of the two first connecting members 208 and the first fixing member 201, and one torsion spring is provided at the hinges of the two second connecting members 209 and the first arcuate member 204. The torsion spring is provided to provide a force for the first connecting member 208 to approach the first fixing member 201, and another torsion spring is provided to provide a force for the second connecting member 209 to approach the first arcuate member 204, so that each arcuate member 203, and the arcuate member 203 adjacent to the first fixing member 201 and the first fixing member 201 maintain a mutually fitting state when no force is applied, so as to facilitate the first telescopic assembly 2 and the second telescopic assembly 3 to maintain a fixed shape before casting, and facilitate the docking of the first telescopic assembly 2 and the second telescopic assembly 3.

[0076] In this embodiment, when the first telescopic component 2 and the second telescopic component 3 are abutted, the first telescopic component 2 includes a first straight line segment and a first arc segment, and the second telescopic component 3 includes a second straight line segment and a second arc segment, and the first arc segment is a 90-degree arc, and the second arc segment is a 180-degree arc.

[0077] In the present technical solution, the first straight segment refers to the vertical segment where the first fixing member 201 is located, and the first arc segment refers to the arc segment where each arc member 203 of the first telescopic assembly 2 is located. The second straight segment refers to the horizontal segment where the second fixing member 301 is located, and the second arc segment refers to the arc segment where each arc member 203 of the second telescopic assembly 3 is located. The first arc segment is set to 90 degrees, and the second arc segment is set to 180 degrees, which meets the design requirements of high space utilization and compact structure at the engine in the prior art.

[0078] In this embodiment, when the first telescopic component 2 and the second telescopic component 3 are in contact, the first straight line segment and the first arc segment are in a first plane, the second straight line segment and the second arc segment are in a second plane, and the first plane and the second plane are perpendicular to each other.

[0079] In this technical solution, the first plane is a vertical plane, and the second plane is a horizontal plane.

[0080] It is worth noting that, with the development of multi-cylinder engines, two, three or more first telescopic assemblies 2 and second telescopic assemblies 3 may be arranged in the housing at the same time.

[0081] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A rapid prototyping mold for an engine air intake, characterized in that: include: A housing (1) is hollow, and the housing (1) is provided with a first opening and a second opening; A first cover body (101), covering the first opening; A second cover (102), covering the second opening; A first telescopic component (2), one end of the first telescopic component (2) being arranged on the first cover body (101), and the other end of the first telescopic component (2) extending into the housing (1); A second telescopic component (3), one end of the second telescopic component (3) is arranged on the second cover body (102), the other end of the second telescopic component (3) extends into the outer shell (1), and the other end of the second telescopic component (3) is used to abut against the other end of the first telescopic component (2).

2. The engine intake rapid prototyping mold according to claim 1, characterized in that: The first telescopic assembly (2) comprises: A first fixing member (201) is fixedly disposed on the first cover body (101); A plurality of connection components (202) and a plurality of arc-shaped members (203); The first fixing member (201) and each of the arc-shaped members (203) are connected in sequence through each of the connecting components (202); one of the connecting components (202) is provided between the first fixing member (201) and the arc-shaped member (203) adjacent thereto, and one of the connecting components (202) is provided between any two adjacent arc-shaped members (203); The arc-shaped member (203) and / or the first fixing member (201) are provided with a receiving groove, and the receiving groove is used to hide the connecting component (202).

3. The engine intake rapid prototyping mold according to claim 2, characterized in that: The connecting assembly (202) between the first fixing member (201) and the arc-shaped member (203) adjacent thereto comprises: A first connecting member (208), one end of the first connecting member (208) being hinged to the first fixing member (201); a second connecting member (209), one end of the second connecting member (209) being hinged to the arc-shaped member (203) adjacent to the first fixing member (201); A rotating shaft (210), the other end of the first connecting member (208) and the other end of the second connecting member (209) are both hinged to the rotating shaft (210).

4. The engine intake rapid prototyping mold according to claim 3, characterized in that: The connecting assembly (202) between the first fixing member (201) and the arc-shaped member (203) adjacent thereto further comprises: At least two torsion springs, at least one of which is arranged between the first connecting member (208) and the first fixing member (201), and at least one of which is arranged between the second connecting member (209) and the arc-shaped member (203) adjacent to the first fixing member (201).

5. The engine intake rapid prototyping mold according to claim 1 or 2, characterized in that: When the first telescopic component (2) and the second telescopic component (3) are in abutment with each other, the first telescopic component (2) comprises a first straight segment and a first arc segment, and the second telescopic component (3) comprises a second straight segment and a second arc segment, and the first arc segment is in a 90-degree arc shape, and the second arc segment is in a 180-degree arc shape.

6. The engine intake rapid prototyping mold according to claim 5, characterized in that: When the first telescopic component (2) and the second telescopic component (3) are in contact, the first straight line segment and the first arc segment are in a first plane, the second straight line segment and the second arc segment are in a second plane, and the first plane and the second plane are perpendicular to each other.

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