阅读说明：本技术 一种复材异型管型件的模具设计方法 (Method for designing mould of composite profiled pipe ) 是由 周晓锋 程配涛 王伟吉 于 2019-10-18 设计创作，主要内容包括：本发明属于复材零件模具设计技术领域,公开了一种复材异型管型件的模具设计方法,包括：获取零件；在零件一端开口的无拔模闭角方向设置第一模块,第一模块的下表面单面贴向零件内部下表面,且第一模块的其他面与零件内表面无接触；在第一模块的左边设置第二模块,在第一模块的右边设置第三模块；第一模块、第二模块和第三模块的上表面记为第一平面；在第一平面上设置第四模块,第四模块的上表面与零件内部上表面贴合,且在第四模块的左边设置第五模块,在第四模块的右边设置第六模块,从该类零件模具的设计方面来解决原本成型难度大,生产效率低等问题,在批量生产这类零件时,能大大提高生产效率。(The invention belongs to the technical field of composite part mould design, and discloses a mould design method of a composite profiled tubing part, which comprises the following steps: obtaining a part; arranging a first module in the non-drawing die closed angle direction with an opening at one end of the part, wherein the single surface of the lower surface of the first module is attached to the inner lower surface of the part, and the other surfaces of the first module are not in contact with the inner surface of the part; a second module is arranged on the left side of the first module, and a third module is arranged on the right side of the first module; the upper surfaces of the first module, the second module and the third module are marked as first planes; set up the fourth module on first plane, the upper surface and the inside upper surface laminating of part of fourth module, and set up the fifth module on the left side of fourth module, set up the sixth module on the right of fourth module, it is big to solve from the original shaping degree of difficulty in the aspect of the design of this type of part mould, and production efficiency hangs down the scheduling problem, when this type of part of batch production, can improve production efficiency greatly.)

1. A method for designing a mould of a composite profiled tubular element is characterized by comprising the following steps:

obtaining a composite profiled pipe section as a part;

arranging a first module in the non-drawing die closed angle direction with an opening at one end of the part, wherein the lower surface of the first module is attached to the inner lower surface of the part on one side, and the other side of the first module is not in contact with the inner surface of the part;

arranging a second module on the left side of the first module, and arranging a third module on the right side of the first module; the second module is attached to the left lower inner surface of the part, and the third module is attached to the right lower inner surface of the part; the upper surfaces of the first module, the second module and the third module are positioned on the same plane and are marked as a first plane;

a fourth module is arranged on the first plane, the upper surface of the fourth module is attached to the upper surface of the interior of the part, a fifth module is arranged on the left side of the fourth module, and a sixth module is arranged on the right side of the fourth module; the fourth module is attached to the upper left inner surface of the part, and the fifth module is attached to the upper right inner surface of the part;

such that the first, second, third, fourth, fifth and sixth modules comprise the mold for the part.

2. A method of designing a mould for a composite profiled tubular article according to claim 1, wherein the first mould block has the largest end surface area and the fourth mould block has the second smallest end surface area.

3. A method as claimed in claim 1, wherein two die holding modules are provided, namely a first holding module and a second holding module;

the first and second stationary modules are collar shaped modules.

4. A method according to claim 1, wherein a draft angle is provided between the first and second modules, and a draft angle is provided between the first and third modules.

5. A method according to claim 1, wherein a draft angle is provided between the fourth block and the fifth block, and a draft angle is provided between the fourth block and the sixth block.

6. A method for designing a mould for a composite profile pipe according to claim 3, wherein the first fixing module is sleeved at one end of the first, second, third, fourth, fifth and sixth modules by using a collar and is fastened by using a bolt;

the second fixing module is sleeved at the other ends of the first module, the second module, the third module, the fourth module, the fifth module and the sixth module by a lantern ring and is fastened by bolts.

7. A method as claimed in claim 3, wherein the first and second die blocks have first and second threaded holes respectively formed at opposite ends thereof, the third and fourth die blocks have third and fifth threaded holes respectively formed at opposite ends thereof, and the sixth die block has sixth and sixth threaded holes respectively formed at opposite ends thereof.

8. A method of designing a mold for a composite profile profiled tubular article according to claim 7, wherein the first and second fixing blocks are removed from the mold during the demolding, and then the bolt is screwed into the first screw hole of the first block, and the second block is pulled out along the demolding direction by using a large power tongs, and then the other blocks are sequentially pulled out by using the same method.

9. A method of designing a mould for a composite profiled tubular article according to claim 7, wherein the material of the first, second, third, fourth, fifth and sixth modules is steel.

Technical Field

The invention belongs to the technical field of composite part mold design, and particularly relates to a mold design method of a composite profile pipe fitting.

Background

Compared with the traditional material, the composite material has the advantages of high specific strength, light weight, high specific modulus, good fatigue resistance, good vibration reduction performance and the like. The composite material has synergistic effect of the components in performance, has incomparable excellent comprehensive performance, and is widely applied in various fields.

The composite profile pipe is a product with a closed size, is limited by the structure and the shape of the product, and has high forming difficulty and difficult mold design. The prior art generally adopts air bag forming, and has the technical defects that the air bag forming is not beneficial to discharging gas or low molecular substances carried in a composite material part in the forming process, so that the part is unevenly pressed in the heating and pressurizing forming process, and the product has defects. .

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a method for designing a mold for a composite profile tube, which solves the problem of difficulty in designing the mold structure of the parts, and solves the problems of difficulty in molding and low production efficiency in designing the mold for the parts, and can greatly improve the production efficiency in mass production of the parts.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme.

A method for designing a mold for a composite profiled tubular element, the method comprising:

obtaining a composite profiled pipe section as a part;

arranging a first module in the non-drawing die closed angle direction with an opening at one end of the part, wherein the lower surface of the first module is attached to the inner lower surface of the part on one side, and the other side of the first module is not in contact with the inner surface of the part;

arranging a second module on the left side of the first module, and arranging a third module on the right side of the first module; the second module is attached to the left lower inner surface of the part, and the third module is attached to the right lower inner surface of the part; the upper surfaces of the first module, the second module and the third module are positioned on the same plane and are marked as a first plane;

a fourth module is arranged on the first plane, the upper surface of the fourth module is attached to the upper surface of the interior of the part, a fifth module is arranged on the left side of the left fourth module, and a sixth module is arranged on the right side of the fourth module; the fourth module is attached to the upper left inner surface of the part, and the fifth module is attached to the upper right inner surface of the part;

such that the first, second, third, fourth, fifth and sixth modules comprise the mold for the part.

The technical scheme of the invention has the characteristics and further improvements that:

(1) the end face area of the first module is the largest, and the end face area of the fourth module is the second.

(2) The two die fixing modules are marked as a first fixing module and a second fixing module;

the first and second stationary modules are collar shaped modules.

(3) A pattern drawing bevel angle is arranged between the first module and the second module, and a pattern drawing bevel angle is also arranged between the first module and the third module.

(4) A draft bevel angle is arranged between the fourth module and the fifth module, and a draft bevel angle is also arranged between the fourth module and the sixth module.

(5) The first fixing module is sleeved at one end of the first module, the second module, the third module, the fourth module, the fifth module and the sixth module by a lantern ring and is fastened by bolts;

the second fixing module is sleeved at the other ends of the first module, the second module, the third module, the fourth module, the fifth module and the sixth module by a lantern ring and is fastened by bolts.

(6) The two ends of the first module are respectively provided with a first threaded hole, the two ends of the second module are respectively provided with a second threaded hole, the two ends of the third module are respectively provided with a third threaded hole, the two ends of the fourth module are respectively provided with a fourth threaded hole, the two ends of the fifth module are respectively provided with a fifth threaded hole, and the two ends of the sixth module are respectively provided with a sixth threaded hole.

(7) When demoulding, the first fixed module and the second fixed module are detached firstly, then the first threaded hole of the first module is screwed in by using the bolt, the second module is pulled out by using the locking pliers along the demoulding direction, and then other modules are pulled out in sequence by using the same method.

(8) The first module, the second module, the third module, the fourth module, the fifth module and the sixth module are made of steel materials.

The mould for the composite profile pipe fitting designed by the technical scheme of the invention comprises: designing a mold forming module, positioning the mold module and demolding the mold module. The three aspects are used for explaining, the design method of the die for the composite material special-shaped pipe is introduced in detail, the problem that the die structure of the part is difficult to design is solved, the problems that the forming difficulty is large and the production efficiency is low originally are solved from the design aspect of the die for the part, and the production efficiency can be greatly improved when the part is produced in batches.

Drawings

Fig. 1 is a schematic combination diagram of a composite profiled tubular element and a mold according to an embodiment of the present invention;

fig. 2 is a first schematic view of a mold structure of a composite profiled tubular member according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a mold for a composite profiled tubular part according to an embodiment of the present invention;

wherein, A is the mould, B is the part, 1 is the first module, 2 is the second module, 3 is the third module, 4 is the fourth module, 5 is the fifth module, 6 is the sixth module, 7 is the first fixed module, 8 is the second fixed module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An embodiment of the present invention provides a method for designing a mold for a composite material special-shaped tubular product, as shown in fig. 1, which is a schematic view of a combined structure of a composite material special-shaped tubular product and a mold, where a is a mold and B is a composite material special-shaped tubular product, and is marked as a part.

1. And designing a mold forming module.

Fig. 2 is a schematic diagram of a mold structure, in which 1 is a first module (i.e., module E), 2 is a second module (i.e., module F), 3 is a third module (i.e., module D), 4 is a fourth module (i.e., module B), 5 is a fifth module (i.e., module C), and 6 is a sixth module (i.e., module a);

the module A, B, C, D, E is made of steel material, and according to the shape characteristics of the part, the module E is arranged in the direction of the part without a drawing die closed angle (namely, the direction without obstruction when drawing out), the lower side of the module E is attached to the part in a single surface mode, the area of the attached part is controlled (namely, the volume of a single module is reduced), and the demoulding resistance is reduced.

Arranging modules D, F at the left and right sides according to the module E, and arranging a draft angle between the module E and the module D, F; a module A, B, C is arranged according to a module D, E, F, a draft angle is arranged between a module B and a module A, C, and a module A, B, C is arranged according to the size of a joint area of a part, so that the joint area is the same as the joint area as much as possible, and the demolding resistance is reduced.

2. The mold modules are positioned.

Fig. 3 is a second schematic diagram of the mold structure, wherein 7 is a first fixed mold block (i.e., a mold block G), 8 is a second fixed mold block (i.e., a mold block H), and the mold blocks G, H are all configured in a collar shape, and the mold blocks A, B, C, D, E, F are fixed at both ends of the mold and fastened by bolts.

3. And demolding the mold module.

Threaded holes are provided at both ends of the module A, B, C, D, E, F, and during demolding, the ring module G, H is removed, then bolts are screwed into the threaded holes of the E module, the module E is pulled out by using a locking pliers along the demolding direction, and then the modules A, B, C, D, F are sequentially demolded by using the same method.

The invention provides a die design method of a composite profile special-shaped pipe, which solves the problem of difficult structural design of a die of parts, solves the problems of high forming difficulty and low production efficiency in the aspect of design of the die of the parts, and can greatly improve the production efficiency in batch production of the parts.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.