Forming method, forming device and mounting method of double-helix structure workpiece

Abstract

The invention discloses a forming method, a forming device and a mounting method of a double-helix structure workpiece, and belongs to the technical field of molds, the forming method comprises the following steps: designing a mold of the forming device: performing three-dimensional modeling based on related parameters of the double-helix structure workpiece to obtain a double-helix structure workpiece model; the contour pitch diameter size of the double-helix structure workpiece model is obtained, three-dimensional modeling is carried out, a double-helix groove is generated based on Boolean subtraction, and an inner mold model and an outer mold model are obtained; and forming of a double-helix structure workpiece: arranging a soft linear part along the outer wall of the inner mold model, combining and aligning the outer mold model and the inner mold model, and then connecting and fixing the outer mold model and the inner mold model, so that the soft linear part is subjected to standing forming, and the double-helix structure workpiece is obtained. Rapid forming and assembling of the double-spiral-structure workpiece can be achieved, forming and assembling consistency of the double-spiral-structure workpiece is guaranteed, the percent of pass and production efficiency are improved, mounting and dismounting are convenient, and operability is high.

Description

Technical Field

[0001] The invention belongs to the technical field of molds, and in particular relates to a forming method, a forming device and an installation method of a double-helix structured part. Background Art

[0002] Due to the special structure of the double helix structure parts, there are certain difficulties in molding and assembly. A certain product needs to assemble a double helix structure part in the inner cavity of the shell, and its assembly conditions have the following characteristics: the inner cavity of the shell of the product to be assembled is a rotating body or a special-shaped body with a certain taper, the inner cavity of the shell is small, the cavity is deep and one end is sealed; the double helix structure part to be assembled is an aluminum part with a soft texture. Before molding, it is a slender straight part in the free state, with a cross-section close to a semicircle and a V-shaped groove on one side of the plane; after molding, it is a double helix structure with a gradual pitch. The V-shaped groove needs to face the inner surface of the shell and be firmly attached to the inner surface of the shell. At the same time, the consistency of the assembly batch needs to be ensured.

[0003] At present, the double helix structure parts are manually bent and formed during processing, and then installed in the inner cavity of the shell of the product to be assembled by manual operation. This forming and assembly method has the following disadvantages: since the double helix structure parts are aluminum parts with a relatively soft texture, manual bending and forming are difficult and inefficient, and the product may break during the manual bending process, resulting in product scrapping and low yield rate; since the inner cavity of the shell of the product to be assembled is narrow, the operating space is small, and the pitch of the double helix structure parts changes gradually, it is difficult to ensure the consistency of the pitch during manual bending and assembly, and the qualified rate and efficiency are low.

[0004] Therefore, in order to ensure the consistency of molding and assembly and improve the product qualification rate and work efficiency, the present invention proposes a molding method, a molding device and an installation method for a double-helix structured part. Summary of the invention

[0005] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0006] The present invention provides a forming method, a forming device and an installation method for a double-helix structure part, which solves the problems of great forming difficulty, low product qualification rate and low work efficiency in the existing double-helix structure part processing and assembly using manual bending forming and manual assembly, and can realize rapid forming of the double-helix structure part and assemble it in a product shell whose inner cavity shape is a rotating body or a special-shaped body with a certain taper, the shell has a narrow inner cavity space, a deep cavity and one end is sealed, which is conducive to ensuring the consistency of the forming and assembly of the double-helix structure part, improves the product qualification rate and production efficiency, and the double-helix structure part forming device is convenient to install and disassemble, and has strong operability.

[0007] The invention discloses a method for forming a double helix structured part, comprising the following steps:

[0008] Design the mold of the forming device: perform three-dimensional modeling based on the relevant parameters of the double helix structure part to obtain the double helix structure part model;

[0009] Obtaining the median diameter of the double helix structure model, performing three-dimensional modeling respectively, and generating double helix grooves based on Boolean subtraction operations to obtain an inner mold model and an outer mold model;

[0010] Double helix structure parts forming: after the soft linear parts are arranged along the outer wall of the inner mold model, the outer mold model and the inner mold model are combined, aligned and connected and fixed, so that the soft linear parts are statically formed to obtain double helix structure parts.

[0011] In some of the embodiments, the steps for establishing the inner mold model are as follows: determine the contour mid-diameter size of the double-helix structure part model, perform three-dimensional modeling on the inner mold of the molding device mold, perform Boolean subtraction operation on the outer wall of the inner mold to generate a first double-helix groove, and then perform weight reduction processing and rounding and blunting processing on the inner mold to obtain the inner mold model.

[0012] In some of the embodiments, the steps for establishing the outer mold model are as follows: based on the contour middle diameter size of the double helix structure part model, the outer mold of the molding device mold is three-dimensionally modeled, and a Boolean subtraction operation is performed on the inner wall of the outer mold to generate a second double helix groove corresponding to the first double helix groove, and then the outer mold is divided into a symmetrical left half outer mold and a right half outer mold along the circumferential direction, and a stop positioning design is added to the left half outer mold and the right half outer mold respectively, and weight reduction treatment and chamfering and blunting treatment are performed to obtain the outer mold model.

[0013] In some embodiments, the specific steps of forming the double helix structure product are as follows:

[0014] Measure the length of the soft linear part and mark the midpoint as the first marking point;

[0015] Measuring the cone top diameter of the inner mold model, and marking the midpoint position as a second marking point;

[0016] After aligning the first marking point with the second marking point, laying out the soft linear part along the first double helical groove;

[0017] The outer mold model and the inner mold model are combined to match the second double helical groove with the first double helical groove. The outer mold model and the inner mold model are aligned and fixed, and the soft linear part is statically formed in the mold of the forming device to obtain the double helical structure part.

[0018] In some embodiments, a V-shaped groove is provided on one side of the plane of the soft linear part, and when the soft linear part is arranged along the first double spiral groove, the V-shaped groove of the soft linear part faces away from the inner mold model.

[0019] In some embodiments, the double helix structure part forming step further includes the following steps:

[0020] The double helix structure workpiece model, the inner mold model and the outer mold model are preassembled, and interference detection is performed to confirm the accuracy of the mold modeling of the molding device.

[0021] On the other hand, the present invention provides a molding device used in the molding method of any of the above-mentioned double-helix structure products, including an inner mold, including a conical inner mold, and a first double-helix groove is arranged on the outer wall of the conical inner mold; an outer mold, which is detachably arranged outside the inner mold, and a second double-helix groove corresponding to the first double-helix groove is arranged on the inner wall of the outer mold.

[0022] In some embodiments, the outer mold includes a left half outer mold and a right half outer mold that are symmetrically arranged, and the left half outer mold and the right half outer mold are detachably arranged outside the inner mold, and the left half outer mold and the right half outer mold are positioned and connected by a stopper.

[0023] In some of the embodiments, the inner mold model further includes a base, on which a slide rail is disposed, and the left half outer mold and the right half outer mold can move relative to or away from each other along the slide rail.

[0024] The present invention also provides a method for installing a double helix structure part obtained by any of the above-mentioned methods for forming a double helix structure part, which specifically comprises the following steps:

[0025] Disassembling the molding device mold, taking out the molded double helix structure product and installing it in the installation mold;

[0026] Place the shell of the product to be assembled upside down, and slowly lift the installation mold into the inner cavity of the shell of the product to be assembled in an upside-down state, so that the end surface of the installation mold fits with the end surface of the shell of the product to be assembled;

[0027] The double helix structure part is bonded and fixed to the shell of the product to be assembled, and after curing, the installation mold is disassembled to complete the installation.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a molding method, a molding device and an installation method which can quickly mold a product into a double helix structure and install it, overcoming the problems of great molding difficulty, low product qualification rate and low work efficiency existing in manual bending molding and manual assembly, ensuring the consistency of molding and assembly of double helix structure parts, improving product qualification rate and production efficiency, and the double helix structure part molding device is convenient to install and disassemble, and has strong operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 This is a front view of the double helix structure component according to an embodiment of the present invention;

[0031] Figure 2 A three-dimensional diagram of a double helix structure component according to an embodiment of the present invention;

[0032] Figure 3 An exploded view of a double helix structure component forming device according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the double helix structure component installed in the installation mold according to the embodiment of the present invention;

[0034] Figure 5 It is a schematic structural diagram of an installation mold with a double-helix structured part installed according to an embodiment of the present invention and an inverted docking with a shell of a product to be assembled;

[0035] Description of reference numerals:

[0036] 100. Double helix structure product; 200. Forming device; 210. Inner mold; 211. Base; 212. Conical inner mold; 213. First double helix groove; 220. Outer mold; 221. Left half outer mold; 222. Right half outer mold; 223. Second double helix groove; 300. Installing mold. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Obviously, the drawings described below are only some examples or embodiments of the present invention. For ordinary technicians in this field, the present invention can also be applied to other similar scenarios based on these drawings without paying creative work. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in this field related to the content disclosed by the present invention, some changes such as design, manufacturing or production based on the technical content disclosed by the present invention are only conventional technical means, and should not be understood as insufficient content disclosed by the present invention.

[0038] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present invention may be combined with other embodiments without conflict.

[0039] Unless otherwise defined, the technical terms or scientific terms involved in the present invention shall have the usual meaning understood by persons with ordinary skills in the technical field to which the present invention belongs. The words "one", "a", "a", "the" and the like involved in the present invention do not indicate a quantity limitation and may indicate the singular or plural. The terms "include", "comprise", "have" and any variations thereof involved in the present invention are intended to cover non-exclusive inclusions. The words "connect", "connected" and the like involved in the present invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" involved in the present invention refers to two or more. The terms "first", "second", etc. involved in the present invention are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0040] The embodiment of the present invention provides a forming method, a forming device and an installation method for a double-helix structure part, which can quickly form the double-helix structure part and assemble it in a product shell whose inner cavity shape is a rotating body or a special-shaped body with a certain taper, the inner cavity space of the shell is narrow, the cavity is deep and one end is sealed, which is conducive to ensuring the consistency of the forming and assembly of the double-helix structure part, improving the qualified rate and production efficiency, and the double-helix structure part forming device is convenient to install and disassemble, and has strong operability.

[0041] Figure 1 This is a front view of the double helix structure component 100 of the present invention. Figure 2 1 is a three-dimensional diagram of a double helix structure component 100 of the present invention. The molding method of the double helix structure component 100 specifically includes the following steps:

[0042] Designing a molding device mold: performing three-dimensional modeling based on the pitch, number of turns, and cross-sectional shape parameters of the double helix structure part 100 to obtain a double helix structure part model;

[0043] Determine the median diameter of the double helix structure part model, perform three-dimensional modeling on the inner mold of the molding device mold, perform Boolean subtraction operation on the outer wall of the inner mold to generate the first double helix groove 213, and then perform weight reduction processing and rounding and blunting processing on the inner mold to obtain the inner mold model;

[0044] Based on the contour middle diameter size of the double helix structure part model, the outer mold of the molding device mold is three-dimensionally modeled, and a Boolean subtraction operation is performed on the inner wall of the outer mold to generate a second double helix groove 223 corresponding to the first double helix groove 213, and then the outer mold is divided into a symmetrical left half outer mold 221 and a right half outer mold 222 along the circumferential direction, and a stopper positioning design is added to the left half outer mold 221 and the right half outer mold 222 respectively, and a weight reduction process and a rounding and blunting process are performed to obtain an outer mold model;

[0045] Pre-assemble the double helix structure part model, the inner mold model and the outer mold model, and perform interference detection to confirm the accuracy of the mold modeling of the molding device;

[0046] Double helix structure parts molding: measure the length of soft linear parts and mark the midpoint as the first marking point;

[0047] Measure the cone top diameter of the inner mold model and mark the midpoint as the second marking point;

[0048] The inner mold model is placed on a workbench, and after the first marking point is aligned with the second marking point, the soft linear part is laid out along the first double spiral groove, wherein during the laying, the flat side of the soft linear part with the V-shaped groove faces away from the inner mold model and outwards;

[0049] The left half outer mold 221 and the right half outer mold 222 of the outer mold model are slid and merged along the slide rails of the inner mold model base 211 respectively, so that the second double helical groove 223 matches the first double helical groove 213. After the stoppers of the left half outer mold 221 and the right half outer mold 222 are positioned and fitted, the outer mold model and the inner mold model are aligned, and the molding device 200 is fastened and fixed with bolts, so that the soft linear part is statically molded in the molding device mold to obtain a double helical structure component 100.

[0050] Figure 3 FIG. 2 is an exploded view of a forming device 200 used in the forming method of the double helix structure product of the present invention, referring to FIG. Figure 3 As shown, the molding device 200 includes an inner mold 210 and an outer mold 220, wherein the inner mold 210 includes a base 211, on which a slide rail is arranged; a conical inner mold 212, on the outer wall of which a first double helical groove 213 is arranged; an outer mold 220, which is detachably arranged outside the inner mold 210, and on the inner wall of the outer mold 220 is arranged a second double helical groove 223 corresponding to the first double helical groove 213, and the outer mold 220 includes a symmetrically arranged left half outer mold 221 and a right half outer mold 222, the left half outer mold 221 and the right half outer mold 222 are detachably arranged outside the inner mold 210, and the left half outer mold 221 and the right half outer mold 222 are positioned and connected by a stopper.

[0051] refer to Figure 4 and Figure 5 As shown, the installation method of the double helix structure product obtained by the above molding method of the present invention specifically includes the following steps:

[0052] Mark the double helix points on the six longitudinal ribs of the installation mold 300, disassemble the inner mold model and the outer mold model of the molding device mold, take out the formed double helix structure product 100 and install it in the installation mold 300, so that the double helix structure product 100 coincides with the marked points of the installation mold 300, and then fix them with paper tape;

[0053] Place the shell of the product to be assembled upside down, slowly hoist the installation mold 300 into the inner cavity of the shell of the product to be assembled in an upside-down state, so that the end face of the installation mold 300 fits with the large end face of the shell of the product to be assembled, and after the locating pin of the installation mold 300 is aligned with the locating pin hole of the shell, the installation mold 300 and the product shell are docked in place;

[0054] The double helix structure component 100 is glued and fixed to the shell of the product to be assembled. After curing, the paper tape and the installation mold 300 are removed. Preferably, the curing time is one day, and the installation of the double helix structure component 100 in the inner cavity of the shell of the product to be assembled is completed.

[0055] The molding method of the double helix structure parts of the present invention ensures the molding consistency of the double helix structure parts; the double helix structure molding device of the present invention is a detachable structure, which is convenient to install and disassemble and has strong operability; the installation method of the double helix structure parts of the present invention improves the assembly qualification rate and production efficiency.

[0056] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for forming a double helix structured part, characterized in that: The following steps are involved: Design the mold of the forming device: perform three-dimensional modeling based on the relevant parameters of the double helix structure part to obtain the double helix structure part model; Obtaining the median diameter of the double helix structure model, performing three-dimensional modeling respectively, and generating double helix grooves based on Boolean subtraction operations to obtain an inner mold model and an outer mold model; Double helix structure parts forming: after the soft linear parts are arranged along the outer wall of the inner mold model, the outer mold model and the inner mold model are combined, aligned and connected and fixed, so that the soft linear parts are statically formed to obtain double helix structure parts.

2. The method for forming a double helix structured part according to claim 1, characterized in that: The steps for establishing the internal model are as follows: The contour mid-diameter size of the double-helix structure part model is determined, the inner mold of the molding device mold is three-dimensionally modeled, a Boolean subtraction operation is performed on the outer wall of the inner mold to generate a first double-helix groove, and then the inner mold is subjected to weight reduction processing and rounding and blunting processing to obtain the inner mold model.

3. The method for forming a double helix structured product according to claim 2, characterized in that: The steps of establishing the external model are as follows: Based on the contour mid-diameter size of the double-helix structure part model, the outer mold of the molding device mold is three-dimensionally modeled, and a Boolean subtraction operation is performed on the inner wall of the outer mold to generate a second double-helix groove corresponding to the first double-helix groove. The outer mold is then divided into a symmetrical left half outer mold and a right half outer mold along the circumferential direction, and a stop positioning design is added to the left half outer mold and the right half outer mold respectively, and weight reduction treatment and chamfering and blunting treatment are performed to obtain the outer mold model.

4. The method for forming a double helix structured product according to claim 3, characterized in that: The specific steps of forming the double helix structure product are as follows: Measure the length of the soft linear part and mark the midpoint as the first marking point; Measuring the cone top diameter of the inner mold model, and marking the midpoint as a second marking point; After aligning the first marking point with the second marking point, laying out the soft linear part along the first double helical groove; The outer mold model and the inner mold model are combined to match the second double helical groove with the first double helical groove. The outer mold model and the inner mold model are aligned and fixed, and the soft linear part is statically formed in the mold of the forming device to obtain the double helical structure part.

5. The method for forming a double helix structured product according to claim 4, characterized in that: A V-shaped groove is provided on one side of the plane of the soft linear part, and when the soft linear part is arranged along the first double spiral groove, the V-shaped groove of the soft linear part faces away from the inner mold model.

6. The method for forming a double helix structured product according to claim 1, characterized in that: The double helix structure part forming step also includes the following steps: The double helix structure workpiece model, the inner mold model and the outer mold model are preassembled, and interference detection is performed to confirm the accuracy of the mold modeling of the molding device.

7. The forming device used in the forming method of the double helix structure product according to any one of claims 1 to 6 is characterized in that: include The inner mold comprises a conical inner mold, and the outer wall of the conical inner mold is provided with a first double helical groove; The outer mold is detachably arranged outside the inner mold, and the inner wall of the outer mold is provided with a second double helical groove corresponding to the first double helical groove.

8. The forming device for a double helix structured product according to claim 7, characterized in that: The outer mold comprises a symmetrically arranged left outer mold and right outer mold, the left outer mold and the right outer mold are detachably arranged outside the inner mold, and the left outer mold and the right outer mold are positioned and connected by a stopper.

9. The forming device for a double helix structured product according to claim 8, characterized in that: The inner mold also includes a base, on which a slide rail is arranged, and the left half outer mold and the right half outer mold can move relative to or away from each other along the slide rail.

10. The method for installing a double helix structured part obtained by the method for forming a double helix structured part according to any one of claims 1 to 6, characterized in that: The specific steps include: Disassembling the molding device mold, taking out the molded double helix structure product and installing it in the installation mold; Place the shell of the product to be assembled upside down, and slowly lift the installation mold into the inner cavity of the shell of the product to be assembled in an upside-down state, so that the end surface of the installation mold fits with the end surface of the shell of the product to be assembled; The double helix structure part is bonded and fixed to the shell of the product to be assembled, and after curing, the installation mold is disassembled to complete the installation.

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