Bent pipe forming tool

Abstract

The utility model discloses a bent pipe forming tool. The bent pipe forming tool comprises a fixed seat, a core mold and a demolding device, forming fixing plates are symmetrically arranged at the two ends of the fixing base. The core mold is formed by splicing a plurality of core mold blocks; the two ends of the core mold are detachably connected with the forming fixing plates respectively. And the demolding device is used for separating the core mold from the formed bent pipe. According to the utility model, by adopting the modularly designed core mold, a proper mold can be quickly spliced according to the shape and the size of the bent pipe, and the core mold does not need to be reprocessed every time the bent pipe is manufactured, so that the production efficiency is greatly improved, and the manufacturing cost is reduced; meanwhile, due to the modular design, the tool is easier to maintain and replace, and the long-term operation cost is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite material forming technical field especially is a kind of elbow forming tool. BACKGROUND

[0002] With the continuous development of composite parts, composite elbow is widely used in aerospace field. Elbow male die forming will cause mold to be stuck in elbow, causing demolding difficulty, and female die forming will cause unable to carry out laying operation.

[0003] The common elbow forming mode currently has: female die split laying after die closing, core mold dissolution method, air bag method and 3D printing etc. Although female die split solves laying problem, but bag making after die closing is difficult to identify the bridging of elbow bend, and die closing seam will also cause part appearance problem, increase subsequent processing cost. Core mold dissolution method needs to use soluble material to corrode core mold, and core mold needs to be reprocessed each time manufacturing, and product stability is greatly affected by core mold processing quality. Core mold dissolution method and air bag method cannot be reused. 3D printing manufacturing cost is high, and its precision often needs secondary processing to realize.

[0004] Therefore, the selection of forming mode and the design of tooling will greatly affect the production quality and manufacturing cost of elbow. INVENTION CONTENTS

[0005] The utility model aims at the deficiency of prior art, and proposes a kind of elbow forming tool.

[0006] The technical scheme of the utility model is: a kind of elbow forming tool, including fixed base, core mold and demolding device;Two ends of the fixed base are symmetrically provided with forming fixed plate;The core mold is spliced by several core modules;Two ends of the core mold are respectively detachably connected with forming fixed plate;The demolding device is used to separate the core mold from the elbow formed.

[0007] The core mold is spliced by first core module, second core module, third core module and fourth core module;The first core module and the second core module are connected at the bending portion, and the third core module and the fourth core module are both arranged at the bending portion;The first core module and the second core module are both provided with inserting column at the end away from the connecting portion;The forming fixed plate is provided with inserting slot matched with inserting column.

[0008] The inserting slot on the forming fixed plate is obliquely arranged;The side of the inserting slot is detachably provided with limiting plate for fixing inserting column in inserting slot.

[0009] The demolding device comprises a demolding fixed plate and a demolding plate; the demolding fixed plate is detachably connected with the inserting column; the demolding plate is provided with a through hole for the core mold to pass through in the middle part; a plurality of ejection screws are threadedly connected on the demolding fixed plate; and the ejection screws abut against the demolding plate.

[0010] The ejection screws are distributed in a matrix on the demolding fixed plate.

[0011] The bottom of the inserting column is provided with a connecting threaded hole; and the middle part of the demolding fixed plate is connected with the threaded hole through a locking screw penetrating through the demolding fixed plate.

[0012] By adopting the above technical scheme, the utility model has the following beneficial effects: (1) the utility model discloses a core mold and a bending pipe forming tool, and the core mold is modularized, so that the suitable mold can be quickly spliced according to the shape and size of the bending pipe, the core mold does not need to be reprocessed every time, the production efficiency is greatly improved, and the manufacturing cost is reduced; meanwhile, the modular design makes the tooling more easy to maintain and replace, and the long-term operation cost is further reduced.

[0013] (2) the demolding device of the utility model is designed ingeniously, the core mold can be easily separated from the formed bending pipe through the cooperation of the ejection screw and the demolding plate, the problem of difficult demolding in the traditional method is avoided, the production efficiency is improved, the bending pipe damage caused by improper demolding is reduced, and the scrap rate is further reduced.

[0014] (3) the core mold is spliced by a plurality of modules, the shape of the bending pipe can be accurately adjusted, so that the forming precision and consistency of the bending pipe are ensured; in addition, through the optimization of the design of the inserting groove and the limiting plate, the formed bending pipe can be fixed by relying on the action of gravity, and the fixing is more convenient.

[0015] (4) the bending pipe forming tool of the utility model can adapt to the production requirements of bending pipes of different specifications and shapes, the forming of different bending pipes can be easily realized by adjusting the number and arrangement mode of the core modules; the flexibility and applicability make the tooling widely applied to the fields of aviation, aerospace and the like which require high-precision and high-quality bending pipes.

[0016] (5) the bending pipe forming tool of the utility model not only meets the current production requirements, but also provides strong support for the development of future composite parts; through the optimization of the tooling design, the performance and reliability of the composite bending pipe can be further improved, and the wide application of the composite bending pipe in the fields of aviation, aerospace and the like is promoted. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments and in combination with the drawings.

[0018] Fig. 1 It is a structural schematic view of the utility model.

[0019] Fig. 2 It is a demolding state schematic view of the utility model.

[0020] Fig. 3 It is a structural schematic view of the demolding fixing plate of the utility model.

[0021] Fig. 4 It is a structural schematic view of the demolding plate of the utility model.

[0022] The reference signs in the drawings are:

[0023] Fixed seat 1, core mold 2, first core module 2-1, second core module 2-2, third core module 2-3, fourth core module 2-4, plug post 2-5, plug slot 2-6, limiting plate 2-7, demolding device 3, demolding fixing plate 3-1, demolding plate 3-2, ejection screw 3-3, forming fixing plate 4. Specific implementation

[0024] (Example 1)

[0025] See Figs. 1 to 4 The bending pipe forming tool of the embodiment comprises a fixed seat 1, a core mold 2 and a demolding device 3; both ends of the fixed seat 1 are symmetrically provided with forming fixing plates 4; the core mold 2 is spliced by a plurality of core modules; both ends of the core mold 2 are detachably connected with the forming fixing plates 4; and the demolding device 3 is used for separating the core mold 2 from the formed bending pipe.

[0026] Further, the core mold 2 is spliced by a first core module 2-1, a second core module 2-2, a third core module 2-3 and a fourth core module 2-4; the first core module 2-1 and the second core module 2-2 are butt-jointed at the bending position, and the third core module 2-3 and the fourth core module 2-4 are both arranged at the bending position; one end of the first core module 2-1 and the second core module 2-2 away from the butt-joint position is provided with a plug post 2-5; and the forming fixing plate 4 is provided with a plug slot 2-6 matched with the plug post 2-5.

[0027] Further, the plug slot 2-6 on the forming fixing plate 4 is obliquely arranged, so as to fix the formed bending pipe by relying on its own gravity, and the fixing is more convenient; one side of the plug slot 2-6 is detachably provided with a limiting plate 2-7 used for fixing the plug post 2-5 in the plug slot 2-6, so as to facilitate subsequent removal.

[0028] Further, the demolding device 3 comprises a demolding fixed plate 3-1 and a demolding plate 3-2; the demolding fixed plate 3-1 is detachably connected with the inserting column 2-5; the demolding plate 3-2 is provided with a through hole for the core mold 2 to pass through in the middle; a plurality of ejection screws 3-3 are threadedly connected on the demolding fixed plate 3-1; the ejection screws 3-3 abut against the demolding plate 3-2.

[0029] Further, the ejection screws 3-3 are distributed in a matrix on the demolding fixed plate 3-1, preferably in a two-column three-row mode.

[0030] Further, in order to facilitate the connection of the demolding fixed plate 3-1 and the inserting column 2-5, the bottom of the inserting column 2-5 is provided with a connecting threaded hole; the middle of the demolding fixed plate 3-1 is connected with the threaded hole by penetrating the demolding fixed plate 3-1 through a locking screw.

[0031] The working process of the embodiment is as follows: first, splice the core mold 2 by the first core mold 2-1, the second core mold 2-2, the third core mold 2-3 and the fourth core mold 2-4, and then insert the inserting columns 2-5 at the ends of the first core mold 2-1 and the second core mold 2-2 into the inserting slots 2-6 on the two forming fixed plates respectively, and then lay and form the bent pipe, after forming, take down the formed bent pipe and the tooling, put the demolding plate 3-2 on the first core mold 2-1, abut against the end face of the formed bent pipe, and fix the demolding fixed plate 3-1 at the bottom of the inserting column 2-5 at the end of the first core mold 2-1, and then push the demolding plate 3-2 by the ejection screws 3-3 on the demolding fixed plate 3-1 to pull out the first core mold 2-1 from the formed bent pipe, and the second core mold 2-2 is pulled out in the same way, and the third core mold 2-3 and the fourth core mold 2-4 can automatically fall out of the bent pipe.

[0032] The bent pipe forming tooling of the embodiment has significant beneficial effects, which not only improves the production efficiency and reduces the cost, but also optimizes the demolding process, improves the product quality and flexibility, and makes an important contribution to the development of composite parts.

[0033] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tube bending forming tool characterized by: The utility model relates to a core mould for bending pipe, which comprises a fixing base (1), a core mould (2) and a demoulding device (3), wherein the fixing base (1) is symmetrically provided with a forming fixing plate (4) at both ends, the core mould (2) is spliced by a plurality of core modules, both ends of the core mould (2) are detachably connected with the forming fixing plate (4) respectively, and the demoulding device (3) is used for separating the core mould (2) from the bent pipe after forming.

2. A tube bending forming tool according to claim 1, characterized in that: The core mould (2) is spliced by a first core module (2-1), a second core module (2-2), a third core module (2-3) and a fourth core module (2-4), the first core module (2-1) and the second core module (2-2) are butted at a bending position, and the third core module (2-3) and the fourth core module (2-4) are both arranged at the bending position, the first core module (2-1) and the second core module (2-2) are both provided with an insertion column (2-5) at an end away from the butting position, and the forming fixing plate (4) is provided with an insertion slot (2-6) matched with the insertion column (2-5).

3. A tube bending tool according to claim 2, wherein: The insertion slot (2-6) on the forming fixing plate (4) is obliquely arranged, and one side of the insertion slot (2-6) is detachably provided with a limiting plate (2-7) used for fixing the insertion column (2-5) in the insertion slot (2-6).

4. The tube bending tool of claim 2, wherein: The demoulding device (3) comprises a demoulding fixing plate (3-1) and a demoulding plate (3-2), the demoulding fixing plate (3-1) is detachably connected with the insertion column (2-5), the demoulding plate (3-2) is provided with a through hole in the middle for the core mould (2) to pass through, a plurality of ejection screws (3-3) are threadedly connected on the demoulding fixing plate (3-1), and the ejection screws (3-3) abut against the demoulding plate (3-2).

5. A tube bending tool according to claim 4, wherein: The ejection screws (3-3) are arranged in a matrix on the demoulding fixing plate (3-1).

6. A tube bending tool according to claim 4, wherein: The bottom of the insertion column (2-5) is provided with a connecting threaded hole, and the middle of the demoulding fixing plate (3-1) is connected with the threaded hole by penetrating the demoulding fixing plate (3-1) through a locking screw.

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