Ultra-large honeycomb sandwich cylinder section demolding device

Abstract

The utility model discloses an ultra-large honeycomb sandwich cylinder section demoulding device which comprises a supporting mechanism and an ejection mechanism, the supporting mechanism comprises a bottom frame and a plurality of liftable supporting frames, and force bearing supports are further arranged on the two sides of the bottom frame; the ejection mechanism comprises a base, a movable frame, a baffle ring assembly and a power assembly, and the movable frame is installed on the base and can be driven by the power assembly to move horizontally along the base. The baffle ring assembly is installed on the side, facing the supporting mechanism, of the movable frame. The supporting mechanism is used for supporting the forming tool needing demolding, the ejection mechanism is arranged behind the forming tool, in the demolding process, the demolding baffle ring pushes a product, the product is evenly stressed, and the product moves in a straight line all the time, so that demolding is smooth, uncertain factors in the demolding process are reduced, the demolding duration and the labor cost are reduced, and the demolding efficiency is improved. The demolding quality of the part is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material forming, and particularly relates to a demoulding device for an extra-large honeycomb sandwich cylinder section. Background Art

[0002] An extra-large honeycomb sandwich cylinder section is a composite material part used for the main structure part of an aircraft, such as an aircraft fuselage, a rocket cylinder, a missile shell, etc. In order to improve the structural strength of the product and reduce the mold cost, the extra-large honeycomb sandwich cylinder section adopts an integral forming process to obtain an integral forming cylinder section. However, due to the overly large volume of the integrally formed cylinder section, the demoulding difficulty is greatly increased, and the demoulding requirements for aircraft products are relatively high. At present, the labor and time costs for demoulding are relatively high, and there are too many uncertain factors during demoulding, which easily cause damage to the product. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a demoulding device for an extra-large honeycomb sandwich cylinder section, which can reduce the demoulding difficulty, reduce the demoulding duration and labor cost, and improve the demoulding quality.

[0004] To this end, the technical solution of the utility model is: a demoulding device for an extra-large honeycomb sandwich cylinder section, including a support mechanism and an ejection mechanism. The support mechanism includes a chassis and a plurality of liftable support frames, and load-bearing brackets are further provided on both sides of the chassis; the ejection mechanism includes a base, a moving frame, a retaining ring assembly and a power assembly. The moving frame is installed on the base and can be driven by the power assembly to translate along the base; the retaining ring assembly is installed on the side of the moving frame facing the support mechanism.

[0005] Based on the above solution and as a preferred solution of the above solution: the power assembly includes an ejection motor, a gear and a rack. The ejection motor is installed at the central position of the moving frame, the gear is installed on the output shaft of the ejection motor, the rack is fixed on the base, and the gear meshes with the rack.

[0006] Based on the above solution and as a preferred solution of the above solution: a plurality of slide rails are provided on the base, and sliders slidably matched with the slide rails are provided on the moving frame; the ejection motor drives the gear to rotate, the gear moves on the rack, and pushes the moving frame to move on the slide rails.

[0007] Based on the above solution and as a preferred solution of the above solution: the retaining ring assembly includes a demoulding retaining ring, and a plurality of fixing parts are provided between the demoulding retaining ring and the moving frame, and the fixing parts are symmetrically arranged on the demoulding retaining ring.

[0008] Based on the above solution and as a preferred solution of the above solution: a rubber pad is provided on the side of the demoulding retaining ring facing the support mechanism.

[0009] Based on the above solution and as a preferred solution of the above solution: The support mechanism further includes an operation platform bracket, and a load-bearing guide rod is installed on the operation platform bracket, and the load-bearing guide rod is located on the side away from the ejection mechanism.

[0010] Based on the above solution and as a preferred solution of the above solution: A moving wheel and a fixing mechanism are provided below the load-bearing bracket on the side away from the ejection mechanism.

[0011] Based on the above solution and as a preferred solution of the above solution: The upper end of the support frame is provided with an arc-shaped support end, and a felt layer is provided inside the arc-shaped support end.

[0012] Based on the above solution and as a preferred solution of the above solution: A lifting screw rod assembly is provided below the support frame for adjusting the height of the support frame; moving wheels are provided below the bottom frame.

[0013] During use:

[0014] 1) Adjust the height of the support frame so that the arc-shaped support end on the support frame is in a coaxial state with the demolding retaining ring.

[0015] 2) Transfer the forming tooling to the demolding device, and adjust the positions of the support frame and the load-bearing bracket so that the main body of the forming tooling is placed on the support frame, and the connecting shafts at both ends are supported on the load-bearing brackets.

[0016] 3) Fix the load-bearing guide rod to the connecting shaft of one side end face of the forming tooling, move the load-bearing bracket at this end away, and use the load-bearing guide rod to provide support force.

[0017] 4) The size of the demolding retaining ring matches the size of the product on the forming tooling, so that the inner diameter of the demolding retaining ring is larger than the outer diameter of the male mold of the forming tooling and smaller than the outer diameter of the product, so that the demolding retaining ring can fit with the product.

[0018] 5) The ejection motor drives the gear to rotate, and the gear cooperates with the rack, thereby pushing the moving frame, so that the moving frame moves toward the forming tooling side, and the demolding retaining ring ejects the product from the male mold to start demolding.

[0019] 6) At the same time, fix a steel wire in front of the product and use the steel wire to synchronously pull the product to complete the demolding operation.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] Use a support mechanism to support the forming tooling that needs to be demolded, and set up an ejection mechanism behind the forming tooling. The moving frame of the ejection mechanism is movably matched with the base in the way of a slide rail. An ejection motor is set at the center position of the moving frame, and a demolding retaining ring is arranged at the front end of the moving frame. There are multiple symmetrically distributed connection points between the two. During the demolding process, the demolding retaining ring pushes the product, and the product is uniformly stressed and always moves in a straight line, so as to smoothly demold, reduce the uncertain factors during the demolding process, reduce the demolding time and labor costs, and ensure the demolding quality of the parts. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is a schematic structural diagram of the support mechanism of the present utility model;

[0024] Figure 3 is a schematic structural diagram of the ejection mechanism of the present utility model;

[0025] Figure 4 is a rear view of the structural diagram of the ejection mechanism of the present utility model;

[0026] Figure 5 is a schematic split structural diagram of the ejection mechanism of the present utility model;

[0027] Figure 6 is a demolding state diagram of the present utility model.

[0028] The marks in the figure are: chassis 1, support frame 2, arc support end 21, lifting screw rod assembly 3, load-bearing bracket 4, first load-bearing bracket 41, operation platform bracket 5, load-bearing guide rod 6, base 7, slide rail 71, moving frame 8, slider 81, retaining ring assembly 9, demolding retaining ring 91, fixing part 92, ejection motor 10, gear 11, rack 12, forming tooling 13, connecting shaft 14, product 15. Detailed Description of the Embodiment

[0029] In the description of the present utility model, it should be noted that for orientation terms, if there are terms such as "center", "horizontal (X)", "vertical (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0030] In addition, terms such as "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined.

[0031] Refer to the attached drawings. The ultra-large honeycomb sandwich cylinder section demolding device described in this embodiment includes a support mechanism and an ejection mechanism. The support mechanism includes a chassis 1 and several liftable support frames 2. A lift screw assembly 3 is provided below the support frame 2 for adjusting the height of the support frame 2 to meet the demolding requirements of different products. An arc-shaped support end 21 is provided at the upper end of the support frame 2, and a felt layer is provided inside the arc-shaped support end 21 for protecting the molded product. At the same time, moving wheels are provided below the chassis 1 to facilitate the movement of the support frame.

[0032] Load-bearing brackets 4 are further provided on the left and right sides of the chassis 1. A moving wheel and a fixing device are provided below the first load-bearing bracket 41 on the left side, which can be fixed before demolding and moved during demolding. At the same time, an operation platform bracket 5 is further provided on the left side of the first load-bearing bracket 41. A load-bearing guide rod 6 is installed on the operation platform bracket 5. One end of the load-bearing guide rod 6 is fixed to the operation platform bracket 5, and the other end is placed above the first load-bearing bracket 41 for connecting the connecting shaft at the end of the molding tooling.

[0033] The ejection mechanism includes a base 7, a moving frame 8, a retaining ring assembly 9, and a power assembly. Multiple slide rails 71 are provided on the base 7, and sliders 81 that are slidably matched with the slide rails 71 are provided on the moving frame 8. The moving frame 8 is slidably installed on the slide rails 71 of the base 7. The power assembly includes an ejection motor 10, a gear 11, and a rack 12. The ejection motor 10 is installed at the central position of the moving frame 8, the gear 11 is installed on the output shaft of the ejection motor 10, the rack 12 is fixed to the base 7, and the gear 11 meshes with the rack 12. The ejection motor 10 drives the gear 11 to rotate, and the gear 11 moves on the rack 12, finally pushing the moving frame 8 to move on the slide rails 71.

[0034] The retaining ring assembly 9 is installed on the side of the moving frame 8 facing the support mechanism. The retaining ring assembly includes a demolding retaining ring 91. Eight fixing parts 92 are provided between the demolding retaining ring and the moving frame 8, and the eight fixing parts are symmetrically distributed up and down and left and right on the demolding retaining ring, so that the product can be evenly stressed. A rubber pad with a thickness of 3 mm is provided on the side of the demolding retaining ring 91 facing the support mechanism.

[0035] During use:

[0036] 1) Adjust the height of the support frame 2, and set a felt layer with a thickness of 25 mm to 30 mm on the surface where the arc-shaped support end 21 contacts the part; use a laser tracker to detect the height of the movable support frame 2 and its coaxiality with the demolding retaining ring 91, so that the arc-shaped support end on the support frame 2 and the demolding retaining ring 91 are in a coaxial state;

[0037] 2) Use a crane to transfer the forming tooling 13 to the demolding device, and adjust the positions of the support frame 2 and the load-bearing support 4, so that the main body of the forming tooling 13 is placed on the support frame, and the connecting shafts 14 at both ends are placed on the load-bearing support 4;

[0038] 3) Fix the load-bearing guide rod 6 to the connecting shaft 14 on one side end face of the forming tooling, and remove the first load-bearing support 41 at this position, and use the load-bearing guide rod 6 to provide the supporting force;

[0039] 4) The size of the demolding retaining ring 9 matches the size of the product 15 on the forming tooling, so that the inner diameter of the demolding retaining ring is larger than the outer diameter of the male mold of the forming tooling and smaller than the outer diameter of the product, so that the demolding retaining ring can fit with the product;

[0040] 5) The ejector motor 10 drives the gear 11 to rotate, and the gear 11 cooperates with the rack 12, thereby pushing the moving frame 8, so that the moving frame 8 moves toward the forming tooling 13, and the demolding retaining ring 91 ejects the product 15 from the forming tooling 13, and the demolding starts;

[0041] 6) At the same time, fix a steel wire rope in front of the product, and use the steel wire rope to synchronously pull the product to push the product out of the cantilever to complete the demolding.

[0042] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A demoulding device for an extra-large honeycomb sandwich cylinder section, characterized in that: It includes a support mechanism and an ejection mechanism. The support mechanism includes a chassis and a number of liftable support frames, and load-bearing brackets are also provided on both sides of the chassis; the ejection mechanism includes a base, a moving frame, a retaining ring assembly and a power assembly. The moving frame is installed on the base and can be driven by the power assembly to translate along the base; the retaining ring assembly is installed on the side of the moving frame facing the support mechanism.

2. The demolding device for an extra-large honeycomb sandwich cylinder section according to claim 1, wherein: The power assembly includes an ejection motor, a gear and a rack. The ejection motor is installed at the central position of the moving frame, the gear is installed on the output shaft of the ejection motor, the rack is fixed on the base, and the gear meshes with the rack.

3. The demoulding device for an extra-large honeycomb sandwich cylinder section according to claim 2, characterized in that: Multiple slide rails are provided on the base, and sliders that are slidably matched with the slide rails are provided on the moving frame; the ejection motor drives the gear to rotate, and the gear moves on the rack, pushing the moving frame to move on the slide rails.

4. The demoulding device for an extra-large honeycomb sandwich cylinder section according to claim 1, wherein: The retaining ring assembly includes a demolding retaining ring, and a number of fixing parts are provided between the demolding retaining ring and the moving frame, and the fixing parts are symmetrically arranged on the demolding retaining ring.

5. The demolding device for an extra-large honeycomb sandwich cylinder section according to claim 4, characterized in that: A rubber pad is provided on the side of the demolding retaining ring facing the support mechanism.

6. The demoulding device for an extra-large honeycomb sandwich cylinder section according to claim 1, wherein: The support mechanism further includes an operating platform bracket, and a load-bearing guide rod is installed on the operating platform bracket, and the load-bearing guide rod is located on the side away from the ejection mechanism.

7. The demoulding device for an extra-large honeycomb sandwich cylinder section according to claim 6, characterized in that: A moving wheel and a fixing mechanism are provided below the load-bearing bracket on the side away from the ejection mechanism.

8. The demoulding device for an extra-large honeycomb sandwich cylinder section according to claim 1, wherein: An arc-shaped support end is provided at the upper end of the support frame, and a felt layer is provided inside the arc-shaped support end.

9. The demoulding device for an extra-large honeycomb sandwich cylinder section according to claim 1, wherein: A lifting lead screw assembly is provided below the support frame for adjusting the height of the support frame; moving wheels are provided below the chassis.

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