Vacuum bag demolding tool

Abstract

The utility model relates to the technical field of aircraft manufacturing, in particular to a vacuum bag demoulding tool which comprises a sleeve assembly, a rolling assembly, a traction rope and a traction hook, the sleeve assembly comprises a demoulding sleeve, a connecting sleeve and a sleeve, one end of the sleeve is rotatably connected with the demoulding sleeve, the other end of the sleeve is fixedly connected with the connecting sleeve, and the rolling assembly is fixedly connected with the traction rope. The demolding sleeve is used for tearing or cutting overflowing glue in the cavity, the winding assembly comprises a frame and a winding wheel, the winding wheel is rotationally connected to the frame, the connecting sleeve is fixedly connected with the frame, the winding wheel is used for winding the traction rope, the traction hook is connected to the end, penetrating out of the demolding sleeve, of the traction rope, and the traction hook is used for being connected with a vacuum bag. Overflowed glue is torn or cut through the demolding sleeve, meanwhile, along with rotation of the sleeve, the connecting sleeve and the frame are driven to rotate, then the traction rope and the traction hook drive the vacuum bag to twist, the winding wheel winds the traction rope, and smooth demolding of the vacuum bag is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aircraft manufacturing technical field especially relates to a vacuum bag stripping tool. BACKGROUND

[0002] Composite materials are widely used in various parts of aircraft body structure due to excellent mechanical properties and lighter weight. For hat-shaped stringer bonded panel parts, the hat-shaped stringer and the panel are bonded and cured in combination. In the production process, a cylindrical vacuum bag is needed for assistance to ensure the quality of the cured parts. However, the glue will overflow from the edge of the part under the action of high temperature and high pressure, and the overflow glue will stick to the vacuum bag, making it difficult to strip. For this situation, the traditional treatment method is to use a stripping wedge to separate the overflow glue bonding part, and then manually strip it. However, the cavity of the hat-shaped stringer is long and narrow, and the overflow glue at the deeper position cannot be separated by the stripping wedge. Only forced stripping can be performed, which may cause damage to the internal cavity of the part on one hand, and may cause the vacuum bag to break and remain in the cavity on the other hand. SUMMARY

[0003] The utility model aims at providing a vacuum bag stripping tool to solve the problem of difficult stripping of the vacuum bag for hat-shaped stringer bonded panel parts.

[0004] The utility model provides a vacuum bag stripping tool, which comprises a sleeve assembly, a winding assembly, a traction cable, a traction hook and a driving assembly. The sleeve assembly comprises a stripping sleeve, a connecting sleeve and a sleeve. The sleeve is located between the stripping sleeve and the connecting sleeve. One end of the sleeve is rotatably connected to the stripping sleeve, and the other end of the sleeve is fixedly connected to the connecting sleeve. The stripping sleeve is used to extend into the cavity of the bonded part and tear or cut the overflow glue in the cavity. The winding assembly comprises a frame and a winding wheel. The winding wheel is rotatably connected to the frame. The connecting sleeve is fixedly connected to the frame. One end of the traction cable is connected to the winding wheel. The winding wheel is used to wind the traction cable. The other end of the traction cable passes out of the stripping sleeve. The traction hook is connected to the end of the traction cable that passes out of the stripping sleeve. The traction hook is used to connect with the vacuum bag. The driving assembly is installed on the frame and is used to drive the winding wheel to wind the traction cable.

[0005] As a preferred technical solution of the vacuum bag stripping tool, the end of the stripping sleeve extending into the cavity is provided with a cutting edge. The cutting edge is used to cut the overflow glue in the cavity.

[0006] As a preferred technical solution of the vacuum bag stripping tool, the end of the stripping sleeve extending into the cavity is provided with a sawtooth. The sawtooth is used to tear the overflow glue in the cavity.

[0007] As a preferred technical solution of the vacuum bag stripping tool, the sleeve is interference-fitted or welded to the connecting sleeve.

[0008] The outer wall of the sleeve is provided with anti-skid patterns.

[0009] The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0010] The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0011] The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0012] The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0013] The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0014] The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0015] The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0017] Figure 2 The vacuum bag demolding tool further comprises two fixing members, the two fixing members are fixedly connected with two sides of the frame respectively, and the connecting sleeve is fixedly connected with the frame through the fixing members.

[0018] In the drawings:

[0019] 100, glue joint parts; 200, vacuum bag;

[0020] 1. release sleeve; 11. cutting blade; 2. connecting sleeve; 3. sleeve; 4. frame; 5. fixing piece; 6. winding wheel; 61. toothed disc; 71. traction cable; 72. traction hook; 81. driving gear; 82. handle; 83. crank; 84. crank handle. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "above", "above" and "above" of the first feature relative to the second feature include the vertical height of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature relative to the second feature include the vertical height of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0025] As Figures 1-2As shown, the utility model provides a kind of vacuum bag demolding tool, for the cavity of cap-shaped stringer glue joint wallboard class parts in the columnar vacuum bag 200 is demolded.For easy description, the cap-shaped stringer glue joint wallboard class parts will be referred to as glue joint part 100 below, and the columnar vacuum bag will be referred to as vacuum bag 200.The vacuum bag demolding tool includes sleeve assembly, winding assembly, towrope 71, tow hook 72 and drive assembly.Sleeve assembly includes demolding sleeve 1, connecting sleeve 2 and sleeve 3, demolding sleeve 1, connecting sleeve 2 and sleeve 3 are coaxially arranged, sleeve 3 is located between demolding sleeve 1 and connecting sleeve 2, one end of sleeve 3 is rotatably connected with demolding sleeve 1, and the other end of sleeve 3 is fixedly connected with connecting sleeve 2.Sleeve 3 and demolding sleeve 1 can be rotatably connected while avoiding the disconnection of sleeve 3 and demolding sleeve 1 by wedge structure or snap ring, for example, the end of demolding sleeve 1 connected with sleeve 3 is provided with a tapered structure, the outer diameter of the small end is smaller than the inner diameter of sleeve 3, and the outer diameter of the large end is larger than the outer diameter of sleeve 3, so that the two are rotatably connected while avoiding the disconnection of demolding sleeve 1 and sleeve 3.Further, a convex ring or convex block is outwardly protruded on the outer surface of demolding sleeve 1, and a corresponding groove is provided on the inner surface of sleeve 3, and the convex ring or convex block is clamped into the groove by press fitting, so that the two are rotatably connected while avoiding the disconnection of demolding sleeve 1 and sleeve 3.Demolding sleeve 1 extends into the cavity of glue joint part 100, and its end part tears or cuts the overflow glue in the cavity and adhered to vacuum bag 200.Winding assembly includes frame 4 and winding wheel 6, winding wheel 6 is rotatably connected to frame 4, frame 4 includes two spaced apart mounting plates, winding wheel 6 is located between the two mounting plates, and connecting sleeve 2 is fixedly connected with frame 4.One end of towrope 71 is connected with winding wheel 6, and winding wheel 6 is used for winding towrope 71.The other end of towrope 71 passes through connecting sleeve 2, sleeve 3 and demolding sleeve 1 in sequence and comes out from demolding sleeve 1, and tow hook 72 is connected to the end of towrope 71 coming out from demolding sleeve 1, and tow hook 72 is used for connecting with vacuum bag 200.Drive assembly is installed on frame 4 and is used for driving winding wheel 6 to wind towrope 71.During demolding of vacuum bag 200, first, the end of vacuum bag 200 is opened, so that tow hook 72 is connected with vacuum bag 200 through the opening, sleeve 3 is rotated to drive connecting sleeve 2 and frame 4 to rotate synchronously, then winding wheel 6 drives towrope 71 to rotate, and vacuum bag 200 is twisted by tow hook 72.When vacuum bag 200 is twisted to the overflow glue position, winding wheel 6 is rotated to wind towrope 71, and demolding sleeve 1 contacts the overflow glue position and tears or cuts the overflow glue at the same time.Subsequently, sleeve 3 is continuously rotated to further twist vacuum bag 200, winding wheel 6 is continuously rotated to wind towrope 71, and demolding sleeve 1 is continuously used to tear or cut the overflow glue.The above actions are repeated until the demolding of vacuum bag 200 is completed.The vacuum bag demolding tool of the embodiment tears or cuts the overflow glue through the demolding sleeve 1, and simultaneously with the rotation of the sleeve 3, the connecting sleeve 2 and the frame 4 are driven to rotate, and then the vacuum bag 200 is twisted through the traction rope 71 and the traction hook 72, the traction rope 71 is wound by the winding wheel 6, and at the same time the demolding sleeve 1 continues to extend into the cavity to tear or cut the overflow glue, and finally the vacuum bag 200 is smoothly demolded. In addition, the sleeve 3 and the demolding sleeve 1 are rotationally connected, so that the sleeve 3 does not drive the demolding sleeve 1 to rotate when the sleeve 3 rotates, so that the demolding sleeve 1 does not rotate in the cavity of the glued part 100, thereby reducing the risk of damaging the glued part 100.

[0026] Further, the end of the demolding sleeve 1 extending into the cavity is provided with a cutting edge 11 for cutting the overflow glue in the cavity. The cutting edge 11 is continuously provided along the circumferential direction of the demolding sleeve 1, and the cutting edge 11 is located outside the radial direction of the cutting sleeve, so as to ensure that there is enough gap between the cutting edge 11 and the vacuum bag 200, and avoid that the cutting edge 11 scratches the vacuum bag 200 and causes the vacuum bag 200 to break in the cavity.

[0027] In other embodiments, the end of the demolding sleeve 1 extending into the cavity can also be provided with sawteeth for tearing the overflow glue in the cavity. During the demolding process, the sawteeth pierce into the glue body of the overflow glue, the glue body is thus torn, and with the twisting of the vacuum bag 200, the tearing size of the glue body of the overflow glue increases, so that the vacuum bag 200 can also be smoothly demolded.

[0028] Further, the sleeve 3 is fixedly connected with the connecting sleeve 2, and the connection mode includes bolt connection, interference fit or welding connection. In order to ensure the reliability of the connection between the sleeve 3 and the connecting sleeve 2, the connecting sleeve 2 is interference-fitted to the inside of the sleeve 3 to realize interference connection, so that the connecting sleeve 2 is driven to rotate by the rotation of the sleeve 3. By setting the sleeve 3, the outer diameter of the sleeve 3 is greater than the outer diameter of the connecting sleeve 2. In the process of twisting the vacuum bag 200, the force required for operating the sleeve 3 to rotate is smaller, so as to reduce the operating intensity, and the diameters of the connecting sleeve 2 and the demolding sleeve 1 can be correspondingly reduced, thereby reducing the total weight of the tool.

[0029] Optionally, anti-slip patterns are arranged on the outer wall of the sleeve 3. The anti-slip patterns are in the shape of semicircular textures, triangular textures, wave textures or cross textures. By arranging the anti-slip patterns, the friction coefficient between the sleeve 3 and the hand is increased, so as to avoid slipping during rotation.

[0030] Further, as shown in FIG. 6, the sleeve 3 is provided with a handle 5, and the handle 5 is arranged on the outer wall of the sleeve 3. Figure 1As shown, the vacuum bag demolding tool further comprises two fixing members 5, which are respectively fixedly connected with the mounting plates on the two sides of the frame 4, and the connecting sleeve 2 is fixedly connected with the frame 4 through the two fixing members 5. In this way, the connecting sleeve 2 and the frame 4 can be manufactured separately and then connected through the fixing members 5, so that the structural complexity is reduced, thereby reducing the difficulty of processing and manufacturing.

[0031] Alternatively, the fixing member 5 is connected with the frame 4 in a manner of welding or bolted connection, and the fixing member 5 is detachably connected with the connecting sleeve 2, preferably in a manner of bolted connection. When the vacuum bag demolding tool is stored, the fixing member 5 can be detached from the connecting sleeve 2, the traction hook 72 is detached from the traction cable 71, and the traction cable 71 is entirely wound on the winding wheel 6, so that the sleeve assembly and the winding assembly are placed separately, and the utilization rate of the storage space is improved.

[0032] Specifically, as shown in Figures 1-2 The driving assembly comprises a driving gear 81 and a driving member. The driving gear 81 is rotationally connected with the frame 4, specifically, the driving gear 81 is located between the two mounting plates of the frame 4, and the axle of the driving gear 81 is rotationally connected with the frame 4. The driving member is used to drive the driving gear 81 to rotate, and the driving member can be an electric driving device or a manual driving device. In this embodiment, the driving member is preferably a manual driving device, so that it is not limited by the use environment. A toothed disc 61 is arranged on the corresponding flange of the winding wheel 6, the driving gear 81 is engaged with the toothed disc 61, and the number of teeth of the driving gear 81 is less than that of the toothed disc 61. On the one hand, the force required in the process of winding the traction cable 71 is smaller, and on the other hand, the rotating wheel rotates at a lower speed, so that the process of winding the traction cable 71 is more smooth.

[0033] Further, please continue to refer to Figures 1-2 The driving member comprises a crank 83 and a handle 84, one end of the crank 83 is fixedly connected with the axle of the driving gear 81, and the handle 84 is connected with the other end of the crank 83. When winding the traction cable 71, the handle 84 is held and rotated, the axle of the driving gear 81 is driven to rotate through the crank 83, and then the driving gear 81 drives the winding wheel 6 to wind through the toothed disc 61.

[0034] Alternatively, please refer to Figure 1 The driving assembly further comprises a handle 82, the handle 82 and the driving member are respectively located on the two sides of the frame 4, and the handle 82 is fixedly connected with the frame 4. In the process of winding the traction cable 71, the operator holds the handle 82 with one hand and rotates the handle 84 with the other hand, so that it is easier to operate.

[0035] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A vacuum bag de-moulding tool, characterised in that, The utility model relates to a kind of mould stripping device, including: Casing assembly, the casing assembly includes stripping casing (1), connecting casing (2) and sleeve (3), the sleeve (3) is located between stripping casing (1) and connecting casing (2), one end of the sleeve (3) is rotatably connected with stripping casing (1), the other end of the sleeve (3) is fixedly connected with connecting casing (2), stripping casing (1) is used to extend into the cavity of cemented part (100) and tear or cut the overflow glue in the cavity; Winding assembly, the winding assembly includes frame (4) and winding wheel (6), the winding wheel (6) is rotatably connected on the frame (4), the connecting casing (2) is fixedly connected with the frame (4); Tow rope (71) and traction hook (72), one end of the tow rope (71) is connected with the winding wheel (6), the winding wheel (6) is used to wind the tow rope (71), the other end of the tow rope (71) is from stripping casing (1), the traction hook (72) is connected in the end of the tow rope (71) from stripping casing (1), and the traction hook (72) is used to be connected with vacuum bag (200); Driving assembly, the driving assembly is installed on the frame (4) and is used to drive the winding wheel (6) to wind the tow rope (71).

2. The vacuum bag de-molding tool of claim 1, wherein, The end of stripping casing (1) extending into the cavity is provided with a cutting edge (11) for cutting the overflow glue in the cavity.

3. The vacuum bag de-molding tool of claim 1, wherein, The end of stripping casing (1) extending into the cavity is provided with a sawtooth for tearing the overflow glue in the cavity.

4. The vacuum bag de-molding tool of claim 1, wherein, The sleeve (3) is interference fit or welded with the connecting casing (2).

5. The vacuum bag de-molding tool of claim 4, wherein, The outer wall of the sleeve (3) is provided with anti-slip patterns.

6. The vacuum bag de-molding tool of claim 1, wherein, Two fixing members (5) are further included, the two fixing members (5) are respectively fixedly connected with two sides of the frame (4), and the connecting casing (2) is fixedly connected with the frame (4) through the fixing members (5).

7. The vacuum bag de-molding tool of claim 6, wherein, The fixing member (5) is detachably connected with the connecting casing (2).

8. The vacuum bag de-molding tool of claim 1, wherein, The driving assembly includes a driving gear (81) and a driving member, the driving gear (81) is rotatably connected on the frame (4), the winding wheel (6) is provided with a toothed disc (61), the driving gear (81) is engaged with the toothed disc (61), and the number of teeth of the driving gear (81) is less than the number of teeth of the toothed disc (61), and the driving member is used to drive the driving gear (81) to rotate.

9. The vacuum bag de-molding tool of claim 8, wherein, The driving member includes a crank (83) and a handle (84), one end of the crank (83) is fixedly connected with the axle of the driving gear (81), and the handle (84) is connected with the other end of the crank (83).

10. The vacuum bag de-molding tool of claim 8, wherein, The driving assembly further includes a handle (82), the handle (82) and the driving member are respectively located on two sides of the frame (4), and the handle (82) is fixedly connected with the frame (4).

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