T-shaped stringer processing equipment

Abstract

The utility model relates to composite material forming technical field especially relates to a kind of T type stringer processing equipment, comprising: support frame, including being in the middle lifting support and being placed in the fixed support of lifting support both sides;First clamping component, set on two fixed supports, and with the first clamping module of opening towards each other, the first clamping module is used to clamp one side in the width direction of prepreg;Second clamping component, set on lifting support, and second clamping component has two symmetrical second clamping modules on it, and the opening of second clamping module is towards the first clamping component close to it, for the clamping of the other side in the width direction of prepreg and allow prepreg to slip in it;Wherein, lifting support moves along the direction perpendicular to the clamping plane, and then prepreg is changed from a type into L type, two first clamping modules are pasted, and two L type prepregs are spliced into T type. Through the above setting, the quality and efficiency of T type stringer forming are improved.

Description

Technical Field

[0001] This utility model relates to the field of composite material molding technology, and in particular to a T-shaped stringer processing equipment. Background Technology

[0002] T-shaped trusses are a common type of reinforcing structure used in aerospace and rail transportation components. Their main function is to improve structural stability, reduce weight, and enhance the overall structure and resistance to damage.

[0003] In the prior art, the processing of T-shaped stringers is mostly carried out by hot molding of prepreg. For example, Chinese invention patent application with publication number CN107415280A disclosed on December 1, 2017, is a pre-forming mold for T-shaped stringers. In the specific processing, the prepreg of the screen is first laid on the mold to form a U-shaped prepreg mold. Then the U-shaped prepreg is cut along the center line to obtain two L-shaped prepreg layups. Then the two layups are separated and joined together to form a T-shaped prepreg layup.

[0004] However, the aforementioned T-shaped stringer preforming mold requires cutting, moving, separating, and assembling the preforming material during processing, which affects the quality and processing efficiency of the T-shaped stringer forming. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a T-shaped stringer processing equipment, which adopts structural improvements to improve the forming quality and efficiency of the T-shaped stringer.

[0006] According to a first aspect of the present invention, a T-shaped stringer processing equipment is provided, comprising: A support frame, the support frame including a lifting bracket in the middle and fixed brackets on both sides of the lifting bracket; A first clamping assembly is disposed on the two fixed brackets, and the first clamping assembly has a first clamping module with an opening facing the other, the first clamping module being used to clamp one side of the prepreg in the width direction; The second clamping assembly is disposed on the lifting bracket, and the second clamping assembly has two symmetrically arranged second clamping modules. The opening of the second clamping module faces the first clamping assembly that is close to it, and is used for clamping the prepreg on the other side in the width direction and allowing the prepreg to slide therein. In the initial state, the first clamping module and the second clamping module clamp the prepreg in the same plane. After the lifting bracket moves in a direction perpendicular to the clamping plane, the prepreg changes from a straight line shape to an L shape. The first clamping assembly also has a bonding drive for driving the first clamping module to move towards the center. After the two first clamping modules are bonded together, the two L-shaped prepregs are joined together to form a T shape.

[0007] Furthermore, the support frame also has a gantry frame that is movable along the length of the support frame, and the gantry frame has a pressure roller assembly, which is used to roll the twist strips added between the two L-shaped prepreg joints.

[0008] Furthermore, the gantry frame has two parallel crossbars, and the pressure roller assembly includes a connecting rod, a roller, and a pressure drive component. The roller is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to one of the crossbars. One end of the pressure drive component is rotatably connected to the other crossbar, and the other end is rotatably connected to the connecting rod, for pressing the roller onto the twist strip.

[0009] Furthermore, the pressure roller assembly also includes a C-shaped connecting frame, with both ends of the roller rotatably connected to the C-shaped connecting frame, and the C-shaped connecting frame and the connecting rod being rotatably connected relative to each other.

[0010] Furthermore, the first clamping assembly includes a sliding seat that can be slidably disposed relative to the fixed bracket along the width direction. One end of the fitting drive member is fixed on the fixed bracket, and the other end is connected to the sliding seat. The first clamping module is disposed on the sliding seat.

[0011] Furthermore, the first clamping module includes an L-shaped lower mold fixed to the inner end of the sliding seat, a first upper mold for fitting with the L-shaped lower mold, a connecting rod assembly for connecting the first upper mold to the L-shaped lower mold, and a pressing drive member with one end rotatably connected to the sliding seat and the other end rotatably connected to the connecting rod assembly. The connecting rod assembly has two parallel rods with both ends rotatably connected to the L-shaped lower mold and the first upper mold, respectively.

[0012] Furthermore, the second clamping module includes a base plate for connecting to the lifting platform, a first lower mold fixed on the base plate, an L-shaped upper mold for fitting with the first lower mold, and a flipping drive for driving the L-shaped upper mold to flip. The L-shaped upper mold is rotatably connected to the first lower mold. One end of the flipping drive is fixed on the base plate, and the other end is rotatably connected to the L-shaped upper mold.

[0013] Furthermore, the vertical surfaces of the L-shaped upper mold and the L-shaped lower mold are arranged opposite each other, with the vertical surface of the L-shaped lower mold facing downwards and the vertical surface of the L-shaped upper mold facing upwards.

[0014] The beneficial effects of this utility model are as follows: This utility model clamps one side of the prepreg by a first clamping component on a fixed bracket, and clamps the other side of the prepreg by a second clamping component on a lifting bracket. After the second clamping component on the lifting bracket clamps the other side of the prepreg and lowers it, the prepreg, which was originally flat, forms two L-shaped structures. After the lifting bracket is lowered, the two L-shaped structures of prepreg are bonded together by a bonding drive component to form a T-shaped stringer. Compared with the prior art, the first clamping component always maintains the clamping of the prepreg, reducing the movement of the prepreg and thus improving the molding quality and processing efficiency of the product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the T-shaped stringer processing equipment in an embodiment of this utility model; Figure 2 As an embodiment of this utility model Figure 1 A magnified schematic diagram of the structure at point A in the diagram; Figure 3 This is a schematic diagram of the structure of the lifting bracket when it moves downward in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure after two L-shaped prepregs are bonded together in an embodiment of this utility model; Figure 5 This is a schematic diagram of the T-shaped stringer processing equipment in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of adding a twist strip to the T-shaped stringer in an embodiment of this utility model; Figure 7 As an embodiment of this utility model Figure 5 A magnified schematic diagram of the structure at point B in the diagram; Figure 8 This is a schematic diagram of the structure of the first clamping component in an embodiment of the present utility model; Figure 9 This is a schematic diagram of the action structure of the first clamping module in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the second clamping component in an embodiment of the present utility model; Figure 11 This is a schematic diagram of the action structure of the second clamping module in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 01, twist strip; 1, support frame; 11, lifting bracket; 12, fixed bracket; 2, first clamping assembly; 21, first clamping module; 21a, L-shaped lower mold; 21b, first upper mold; 21c, connecting rod assembly; 21d, pressing drive component; 22, bonding drive component; 23, sliding seat; 3, second clamping assembly; 31, second clamping module; 31a, substrate; 31b, first lower mold; 31c, L-shaped upper mold; 31d, flipping drive component; 4, gantry frame; 41, crossbar; 5, pressure roller assembly; 51, connecting rod; 52, roller; 53, pressure drive component; 54, C-shaped connecting frame. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figures 1 to 11 The T-shaped stringer processing equipment shown includes a support frame 1, a first clamping assembly 2, and a second clamping assembly 3, as detailed below. Figure 1 and Figure 2As shown in the embodiment of this utility model, the support frame 1 includes a lifting bracket 11 in the middle and fixed brackets 12 on both sides of the lifting bracket 11. It should be noted that the support frame 1 can be formed by welding metal profiles, with the fixed brackets 12 on both sides and the lifting bracket 11 in the middle. It can be a split structure or an integrated structure. The lifting drive structure of the lifting bracket 11 is existing technology; for example, it can be driven by a hydraulic cylinder or other existing linear drive methods, such as... Figure 1 As shown, the guiding function can be achieved on both sides of the lifting bracket 11 by means of slide rails and sliders.

[0022] Please continue to refer to Figure 1 and Figure 2 In an embodiment of this utility model, the first clamping component 2 is disposed on two fixed supports 12, and the first clamping component 2 has a first clamping module 21 with an opening facing the other side. The first clamping module 21 is used to clamp one side of the prepreg in the width direction. Here, the opening facing the other side means that the clamping mold in the first clamping module 21 is set towards the direction of the middle lifting platform. The second clamping component 3 is disposed on the lifting support 11, and the second clamping component 3 has two symmetrically arranged second clamping modules 31. The opening of the second clamping module 31 faces the first clamping component 2 that is close to it, and is used to clamp the other side of the prepreg in the width direction and allow the prepreg to slide therein. When performing the tasks, please refer to... Figure 2 First, open the first clamping module 21 and the second clamping module 31, and place two pieces of prepreg in the first clamping module 21 and the second clamping module 31 to clamp both sides of each prepreg. In the initial state, the first clamping module 21 and the second clamping module 31 clamp the prepreg in the same plane; then... Figure 3 As shown, after the lifting bracket 11 moves in a direction perpendicular to the clamping plane, it changes the prepreg from a straight line to an L-shape. In this embodiment of the invention, the lifting bracket 11 descends. Since the prepreg can slide in the second clamping module 31, portions of the two prepregs slide along with the descent of the lifting bracket 11, forming two symmetrical L-shaped structures; finally, as shown... Figure 4 As shown, the first clamping assembly 2 also has a bonding drive component 22 for driving the first clamping module 21 to move towards the center. After the two first clamping modules 21 are bonded together, the two L-shaped prepregs are assembled into a T-shape. Then, the T-shaped stringer is cured and formed by heating and holding pressure in the mold.

[0023] In the above embodiment, by clamping one side of the prepreg with the first clamping component 2 on the fixed bracket 12, and clamping the other side of the prepreg with the second clamping component 3 on the lifting bracket 11 and lowering it, the prepreg, which was originally flat, is formed into two L-shaped structures. After the lifting bracket 11 is lowered, the two L-shaped prepreg structures are bonded together by the bonding drive component 22 to form a T-shaped stringer. Compared with the prior art, the first clamping component 2 always maintains the clamping of the prepreg, reducing the movement of the prepreg, thereby improving the molding quality and processing efficiency of the product.

[0024] like Figure 5 and Figure 6 As shown, since the two prepreg sheets form a certain rounded corner at the bend after changing from a straight line to an L-shape, in order to improve the surface flatness of the T-shaped stringer, in this embodiment of the invention, after the two L-shaped prepreg sheets are bonded together, an additional filler is added between them as shown in the figure. Figure 6 In order to press the twist strip 01 shown, in this embodiment of the utility model, the support frame 1 also has a gantry frame 4 that is movably arranged along the length direction of the support frame 1. The gantry frame 4 has a pressure roller assembly 5, which is used to press the twist strip 01 added between the two L-shaped prepreg joints.

[0025] In the embodiments of this utility model, specifically as follows: Figure 7 As shown, the gantry frame 4 has two parallel crossbars 41. The pressure roller assembly 5 includes a connecting rod 51, a roller 52, and a pressure drive 53. The roller 52 is rotatably connected to one end of the connecting rod 51, and the other end of the connecting rod 51 is rotatably connected to one of the crossbars 41. One end of the pressure drive 53 is rotatably connected to the other crossbar 41, and the other end is rotatably connected to the connecting rod 51, for pressing the roller 52 onto the twist strip 01. It should be noted that in this embodiment of the invention, the pressure driving component 53 can be a cylinder. Through the pressure of the cylinder, the roller 52 can be tightly attached to the upper surfaces of the twist strip 01 and the T-shaped stringer. It should also be noted that in this embodiment, the roller 52 is cylindrical to simultaneously cover the prepreg on both sides of the twist strip 01 box. Furthermore, in this embodiment, to allow the roller 52 to adapt to the torsional deformation of the T-shaped stringer, the pressure roller assembly 5 also includes a C-shaped connecting frame 54. Both ends of the roller 52 are rotatably connected to the C-shaped connecting frame 54, and the C-shaped connecting frame 54 and the connecting rod 51 are rotatably connected relative to each other. This arrangement allows the roller 52 to conform to the upper surface of the T-shaped stringer during rolling, achieving a conformal effect.

[0026] In some embodiments of this utility model, the specific structure of the first clamping component 2 is as follows: Figure 8 and Figure 9As shown, the first clamping assembly 2 includes a sliding seat 23 that is slidably disposed relative to the fixed bracket 12 along its width direction. One end of the contact drive member 22 is fixed to the fixed bracket 12, and the other end is connected to the sliding seat 23. The first clamping module 21 is disposed on the sliding seat 23. It should be noted that the sliding of the sliding seat 23 can be achieved using a slide rail and a slider, and the contact drive member 22 can be implemented using a motor lead screw structure. Of course, those skilled in the art can also use other existing structures to achieve linear drive. Please continue to refer to... Figure 8 and Figure 9 In an embodiment of this utility model, the first clamping module 21 includes an L-shaped lower mold 21a fixed to the inner end of the sliding seat 23, a first upper mold 21b for fitting with the L-shaped lower mold 21a, a connecting rod assembly 21c for connecting the L-shaped lower mold 21a to the first upper mold 21b, and a pressing drive member 21d with one end rotatably connected to the sliding seat 23 and the other end rotatably connected to the connecting rod assembly 21c. The connecting rod assembly 21c has two parallel rods, each with its two ends rotatably connected to the L-shaped lower mold 21a and the first upper mold 21b, respectively. Figure 9 As shown, by extending and retracting the pressing drive 21d, the first upper mold 21b can be lifted or pressed down, thereby clamping the prepreg on one side.

[0027] In some embodiments of this utility model, such as Figure 10 and Figure 11 As shown, the second clamping module 31 includes a base plate 31a for connecting to the lifting platform, a first lower mold 31b fixed on the base plate 31a, an L-shaped upper mold 31c for fitting with the first lower mold 31b, and a flipping drive member 31d for driving the L-shaped upper mold 31c to flip. The L-shaped upper mold 31c is rotatably connected to the first lower mold 31b. One end of the flipping drive member 31d is fixed to the base plate 31a, and the other end is rotatably connected to the L-shaped upper mold 31c. In the embodiments of this utility model, the inner side of the L-shaped upper mold and the inner side of the first lower mold 31b can often be rotatably connected. There are various specific connection structures, the purpose of which is to realize the relative rotation of the L-shaped upper mold 31c and the first lower mold 31b. These will not be described in detail here. In addition, in the embodiments of this utility model, the vertical surfaces of the L-shaped upper mold 31c and the L-shaped lower mold 21a are arranged opposite each other, with the vertical surface of the L-shaped lower mold 21a facing downwards and the vertical surface of the L-shaped upper mold 31c facing upwards. The distance between the two vertical surfaces is slightly less than the thickness of the prepreg, which allows the L-shaped upper mold 31c to slide close to the inner surface of the prepreg when it moves down, thus maintaining the flatness of the bonding surface.

[0028] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A T-shaped stringer processing equipment, characterized in that, include: A support frame, the support frame including a lifting bracket in the middle and fixed brackets on both sides of the lifting bracket; A first clamping assembly is disposed on the two fixed brackets, and the first clamping assembly has a first clamping module with an opening facing the other, the first clamping module being used to clamp one side of the prepreg in the width direction; The second clamping assembly is disposed on the lifting bracket, and the second clamping assembly has two symmetrically arranged second clamping modules. The opening of the second clamping module faces the first clamping assembly that is close to it, and is used for clamping the prepreg on the other side in the width direction and allowing the prepreg to slide therein. In the initial state, the first clamping module and the second clamping module clamp the prepreg in the same plane. After the lifting bracket moves in a direction perpendicular to the clamping plane, the prepreg changes from a straight line shape to an L shape. The first clamping assembly also has a bonding drive for driving the first clamping module to move towards the center. After the two first clamping modules are bonded together, the two L-shaped prepregs are joined together to form a T shape.

2. The T-shaped stringer processing equipment according to claim 1, characterized in that, The support frame also has a gantry frame that can be moved along the length of the support frame. The gantry frame has a pressure roller assembly, which is used to roll the twist strips added between the two L-shaped prepreg joints.

3. The T-shaped stringer processing equipment according to claim 2, characterized in that, The gantry has two parallel crossbars. The pressure roller assembly includes a connecting rod, a roller, and a pressure drive. The roller is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to one of the crossbars. One end of the pressure drive is rotatably connected to the other crossbar, and the other end is rotatably connected to the connecting rod, for pressing the roller onto the twist strip.

4. The T-shaped stringer processing equipment according to claim 3, characterized in that, The pressure roller assembly also includes a C-shaped connecting frame, the two ends of the roller are rotatably connected to the C-shaped connecting frame, and the C-shaped connecting frame and the connecting rod are rotatably connected relative to each other.

5. The T-shaped stringer processing equipment according to claim 1, characterized in that, The first clamping assembly includes a sliding seat that can be slidably disposed relative to the fixed bracket along the width direction. One end of the fitting drive member is fixed on the fixed bracket, and the other end is connected to the sliding seat. The first clamping module is disposed on the sliding seat.

6. The T-shaped stringer processing equipment according to claim 5, characterized in that, The first clamping module includes an L-shaped lower mold fixed to the inner end of the sliding seat, a first upper mold for fitting with the L-shaped lower mold, a connecting rod assembly for connecting the first upper mold to the L-shaped lower mold, and a pressing drive member with one end rotatably connected to the sliding seat and the other end rotatably connected to the connecting rod assembly. The connecting rod assembly has two parallel rods with their ends rotatably connected to the L-shaped lower mold and the first upper mold, respectively.

7. The T-shaped stringer processing equipment according to claim 6, characterized in that, The second clamping module includes a base plate for connecting to the lifting platform, a first lower mold fixed on the base plate, an L-shaped upper mold for fitting with the first lower mold, and a flipping drive for driving the L-shaped upper mold to flip. The L-shaped upper mold is rotatably connected to the first lower mold. One end of the flipping drive is fixed on the base plate, and the other end is rotatably connected to the L-shaped upper mold.

8. The T-shaped stringer processing equipment according to claim 7, characterized in that, The vertical surfaces of the L-shaped upper mold and the L-shaped lower mold are arranged opposite each other, with the vertical surface of the L-shaped lower mold facing downwards and the vertical surface of the L-shaped upper mold facing upwards.

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