Composite material pull ring winding forming device and forming method thereof

Abstract

The invention provides a composite material pull ring winding forming device and a forming method thereof, and belongs to the technical field of composite material forming. The problems that in the winding forming process of an existing composite material pull ring, the production efficiency of a winding product is low, and the forming quality is unstable are solved. The pull ring winding device comprises a base, a track plate, clamping mechanisms, a winding mechanism and a pull ring prefabricated part, a groove matched with the track plate is formed in the middle of the top face of the base, the track plate is embedded in the groove, the clamping mechanisms are slidably arranged at the tops of the middles of the four sides of the base respectively, and the four clamping mechanisms are symmetrically and oppositely arranged in pairs; the pull ring prefabricated part is arranged above the track plate and clamped and fixed through the clamping mechanism, a runway type sliding rail is formed in the track plate, and a moving mechanism matched with the runway type sliding rail is arranged at the bottom of the winding mechanism. The forming method is mainly used for forming the composite material pull ring piece.

Description

Technical Field

[0001] The present invention belongs to the technical field of composite material forming, and in particular relates to a composite material pull ring winding forming device and a forming method thereof. Background Art

[0002] Composite pull tabs are used to withstand tensile loads in low-temperature environments. Current fiber winding methods are still primarily manual, and there is currently no readily available winding equipment. While manual winding can achieve sufficient coverage of the entire workpiece surface, the fiber winding tension, the regularity of the fiber yarn arrangement, and the fiber content of each component exhibit significant variations, leading to inconsistent molding quality. Furthermore, while operators possess a certain degree of flexibility, this is significantly influenced by factors such as their individual skill level, proficiency, and mentality. Consequently, the quality consistency of the wound products cannot be guaranteed, resulting in low production efficiency and inconsistent molding quality. Summary of the Invention

[0003] In view of this, the present invention aims to propose a composite material pull ring winding molding device and a molding method thereof to solve the problems of low production efficiency and unstable molding quality of wound products in the existing composite material pull ring winding molding process.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a composite material pull ring winding forming device, comprising a base, a track plate, a clamping mechanism, a winding mechanism and a pull ring preform, a groove matching the track plate is provided in the middle of the top surface of the base, the track plate is embedded in the groove, and the top of the middle of the four sides of the base are respectively slidably provided with clamping mechanisms, the four clamping mechanisms are symmetrically and oppositely arranged in pairs, the pull ring preform is arranged above the track plate and is clamped and fixed by the clamping mechanism, a runway-type slide rail is provided on the track plate, and a moving mechanism matching the runway-type slide rail is provided at the bottom of the winding mechanism, the winding mechanism is slidably connected to the runway-type slide rail through the moving mechanism, and the top of the winding mechanism surrounds the pull ring preform and is movably arranged.

[0005] Furthermore, the winding mechanism includes a retaining frame, a rotating ring, a positioning ring and a fiber placement frame. One side of the retaining frame is connected to the moving mechanism through a first connecting rod, and an annular groove is provided on the other side of the retaining frame. The rotating ring and the positioning ring are both circular rings with notches. The rotating ring is arranged in the annular groove, the rotating ring surrounds the pull ring preform and is rotated, the positioning ring is arranged on the inner side of the rotating ring, and the fiber placement frame is connected to the rotating ring by bolts.

[0006] Furthermore, the positioning ring and the rotating ring are connected via a fixing frame.

[0007] Furthermore, the positioning ring and the fixing frame, as well as the rotating ring and the fixing frame are connected by bolts.

[0008] Furthermore, the clamping mechanism includes a connecting block, a fixed plate, a motor, a first connecting rod, a second connecting rod and a second connecting rod. The bottom of the connecting block is connected to the T-shaped slider through the second connecting rod. The fixed plate is arranged on one side of the connecting block. The motor is arranged on the fixed plate. The output end of the motor passes through the fixed plate and is connected to the first gear. One end of the first connecting rod is provided with a second gear meshing with the first gear, and one end of the second connecting rod is provided with a third gear meshing with the second gear. The second gear and the third gear are both rotatably arranged on the fixed plate. The other end of the first connecting rod and the other end of the second connecting rod are both rotatably connected to the clamping rod. One end of the two clamping rods is rotatably connected to the first connecting rod and the second connecting rod respectively, and the other end of the two clamping rods is provided with a clamping claw, and the two clamping claws are arranged in cooperation.

[0009] Furthermore, a neoprene clamping block is provided on the inner side of the two clamping jaws.

[0010] Furthermore, the base and the track plate are both provided with T-shaped grooves that match the T-shaped sliders.

[0011] The present invention also provides a forming method of a composite material pull ring winding forming device, which comprises the following steps: Step 1: Install the track plate, clamping mechanism and winding mechanism on the base in sequence; Step 2: Place the wound yarn ball on the fiber placement rack of the winding mechanism; Step 3: Insert the pull ring preform through the opening of the rotating ring of the winding mechanism, and after placing the pull ring preform at the rotation center of the rotating ring, clamp and fix it through one of the pairs of oppositely arranged clamping mechanisms, and pre-wrap one end of the fiber of the winding yarn ball on the pull ring preform and adjust the initial tension; Step 4: Start the power supply, and the winding mechanism moves along the runway-type slide rail on the track plate through the moving mechanism at the bottom. At the same time, the rotating ring on the winding mechanism starts to rotate. When the winding mechanism moves to one of the pair of clamping mechanisms that clamp the pull ring preform, the other pair of clamping mechanisms clamps and holds the pull ring preform, and then the pair of clamping mechanisms that have clamped the pull ring preform are released to ensure that the winding mechanism passes through the clamping mechanism, so that the winding mechanism drives the fibers on the winding yarn ball to be evenly wound on the pull ring preform until the workpiece is formed.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the present invention provides a composite material pull ring winding and forming device, which replaces manual winding of the composite material pull ring, can effectively improve the winding quality of the composite material pull ring frame, and the fibers wound on the product are arranged more regularly and have a high fiber density. During the winding process, the fiber winding tension can be controlled according to the process requirements to avoid the occurrence of fiber shortage and wrinkle problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of a composite material ring winding forming device according to the present invention; Figure 2 This is a schematic structural diagram of a base in a composite material ring-wrap forming device according to the present invention; Figure 3 This is a schematic structural diagram of a track plate in a composite material ring-wrap forming device according to the present invention; Figure 4 This is a schematic structural diagram of a clamping mechanism in a composite material ring-wrap forming device according to the present invention; Figure 5 This is a partial structural schematic diagram of a clamping mechanism in a composite material ring-wrap forming device according to the present invention; Figure 6 This is a schematic structural diagram of a winding mechanism in a composite material ring-wrap forming device according to the present invention; Figure 7 This is a schematic structural diagram of a rotating ring in a composite material pull-ring winding forming device according to the present invention.

[0014] 1-base, 2-track plate, 3-clamping mechanism, 4-winding mechanism, 5-pull ring preform, 2-1-runway slide rail, 3-1-connecting block, 3-2-second connecting rod, 3-3-T-type slider, 3-4-fixed plate, 3-5-motor, 3-6-first gear, 3-7-first connecting rod, 3-8-second gear, 3-9-second connecting rod, 3-10-third gear, 3-11-clamping rod, 3-12-clamping claw, 3-13-chloroprene rubber clamping block, 4-1-retaining frame, 4-2-rotating ring, 4-3-positioning ring, 4-4-fixed frame, 4-5-fiber placement frame, 4-6-moving mechanism. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features therein can be combined with each other in the absence of conflict, and the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0016] See also Figure 1-7 Describing this embodiment, a composite material pull ring winding forming device includes a base 1, a track plate 2, a clamping mechanism 3, a winding mechanism 4 and a pull ring preform 5. A groove matching the track plate 2 is provided in the middle of the top surface of the base 1. The track plate 2 is embedded in the groove to provide a track for the movement of the winding mechanism 4 to limit the movement trajectory of the winding mechanism 4. The top of the middle of the four sides of the base 1 is respectively slidably provided with a clamping mechanism 3. The four clamping mechanisms 3 are symmetrically and relatively arranged in pairs. The clamping mechanism 3 is used to clamp the pull ring preform 5. The pull ring preform 5 is arranged above the track plate 2 and is clamped and fixed by the clamping mechanism 3. A runway-type slide rail 2-1 is provided on the track plate 2. The bottom of the winding mechanism 4 is provided with The moving mechanism 4-6 cooperates with the runway-type slide rail 2-1, and the moving mechanism 4-6 is used to move the winding mechanism 4. The winding mechanism 4 is slidably connected to the runway-type slide rail 2-1 through the moving mechanism 4-6. The top of the winding mechanism 4 surrounds the pull ring preform 5 and is moved. The winding mechanism 4 is used to wind fibers onto the pull ring preform 5. The actions of the clamping mechanism 3, the winding mechanism 4 and the moving mechanism 4-6 in this embodiment are all electrically controlled. This device replaces manual winding of the composite material pull ring, and can effectively improve the winding quality of the composite material pull ring frame. The fibers wound on the product are more regularly arranged, the fiber density is high, and the fiber winding tension can be controlled according to the process requirements during the winding process to avoid fiber shortage and wrinkle problems.

[0017] The pull ring preform 5 in this embodiment is used as an initial core mold for the composite pull ring, and the thickness of the composite pull ring wound on one side is no more than 5 mm.

[0018] The winding mechanism 4 in this embodiment includes a retaining frame 4-1, a rotating ring 4-2, a positioning ring 4-3 and a fiber placement frame 4-5. One side of the retaining frame 4-1 is connected to the moving mechanism 4-6 through a first connecting rod, and the other side of the retaining frame 4-1 is provided with an annular groove. The rotating ring 4-2 and the positioning ring 4-3 are both circular rings with a notch. The rotating ring 4-2 is arranged in the annular groove. The rotating ring 4-2 surrounds the pull ring preform 5 and rotates. The positioning ring 4-3 is arranged on the inner side of the rotating ring 4-2. The fiber placement frame 4-5 is connected to the rotating ring 4-2 by bolts. The fiber placement frame 4-5 is used to place the winding yarn ball, which can be pre-impregnated yarn or dry yarn for wet winding. The rotating ring 4-2 rotates in the annular groove of the retaining frame 4-1, thereby driving the fibers of the wound yarn ball on the fiber placement frame 4-5 to be wound on the pull ring preform 5.

[0019] In this embodiment, the positioning ring 4-3 and the rotating ring 4-2 are connected by a fixing frame 4-4, and the positioning ring 4-3 and the fixing frame 4-4, as well as the rotating ring 4-2 and the fixing frame 4-4 are all connected by bolts. The fixing frame 4-4 is used to connect the positioning ring 4-3 and the rotating ring 4-2.

[0020] The clamping mechanism 3 in this embodiment includes a connecting block 3-1, a fixed plate 3-4, a motor 3-5, a first connecting rod 3-7, a second connecting rod 3-9 and a second connecting rod 3-2. The bottom of the connecting block 3-1 is connected to the T-shaped slider 3-3 through the second connecting rod 3-2. The fixed plate 3-4 is arranged on one side of the connecting block 3-1. The motor 3-5 is arranged on the fixed plate 3-4. The output end of the motor 3-5 passes through the fixed plate 3-4 and is connected to the first gear 3-6. One end of the first connecting rod 3-7 is provided with a second gear 3-8 meshing with the first gear 3-6. The second connecting rod 3-9 is provided with a A third gear 3-10 meshing with the second gear 3-8 is provided at one end, and the second gear 3-8 and the third gear 3-10 are both rotatably set on the fixed plate 3-4, and the other end of the first connecting rod 3-7 and the other end of the second connecting rod 3-9 are rotatably connected with the clamping rod 3-11, and one end of the two clamping rods 3-11 are rotatably connected with the first connecting rod 3-7 and the second connecting rod 3-9 respectively, and the other ends of the two clamping rods 3-11 are provided with clamping claws 3-12, and the two clamping claws 3-12 are arranged in coordination, and the motor 3-5 controls the connecting rod mechanism through the gear to realize the control of the opening and closing of the clamping claws 3-12.

[0021] In this embodiment, a neoprene clamping block 3-13 is provided on the inner side of the two clamping jaws 3-12. The neoprene clamping block 3-13 has a large clamping width, which increases the friction between the clamping jaws 3-12 and the composite material pull ring without damaging the fiber.

[0022] In this embodiment, the base 1 and the track plate 2 are both provided with T-shaped sliding grooves that match the T-shaped sliding block 3 - 3 .

[0023] This embodiment also provides a method for forming a composite material ring winding forming device, which includes the following steps: Step 1: Install the track plate 2, the clamping mechanism 3 and the winding mechanism 4 on the base 1 in sequence; Step 2: Place the wound yarn ball on the fiber placement rack 4-5 of the winding mechanism 4; Step 3: Insert the pull ring preform 5 through the opening of the rotating ring 4-2 of the winding mechanism 4 and place the pull ring preform 5 at the rotation center of the rotating ring 4-2. Then adjust the position of the clamping mechanism 3 and clamp and fix it with one pair of oppositely arranged clamping mechanisms 3. Then, pre-wrap one end of the fiber of the winding yarn around the pull ring preform 5 and adjust the initial tension. Step 4: Start the power supply, and the winding mechanism 4 moves along the runway-type slide rail 2-1 on the track plate 2 through the moving mechanism 4-6 at the bottom. At the same time, the rotating ring 4-2 on the winding mechanism 4 starts to rotate. When the winding mechanism 4 moves to one of the pair of clamping mechanisms 3 that clamp the pull ring preform 5, the other pair of clamping mechanisms 3 clamps and clamps the pull ring preform 5, and then the pair of clamping mechanisms 3 that have clamped the pull ring preform 5 are released to ensure that the winding mechanism 4 passes through the clamping mechanism 3, so that the winding mechanism 4 drives the fibers on the winding yarn ball to be evenly wound on the pull ring preform 5 until the workpiece is formed.

[0024] In this embodiment, the movement speed of the winding mechanism 4 is slowed down at the rounded corner transition of the pull ring preform 5, and the rotation plane of the rotating ring 4-2 is always perpendicular to the center plane of the part to be wound, ensuring that the fibers are wound at the transition without gaps and excessive overlaps.

[0025] The loosening range of the clamping mechanism 3 in this embodiment ensures that the winding mechanism 4 can pass through the original position of the clamping mechanism 3, and the opening angle of the clamping jaws 3-12 should be large enough to avoid interference with the winding mechanism 4.

[0026] The embodiments of the present invention disclosed above are intended only to illustrate the present invention. The embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A composite material ring winding forming device, characterized in that: The invention comprises a base (1), a track plate (2), a clamping mechanism (3), a winding mechanism (4) and a pull ring preform (5), wherein a groove matching the track plate (2) is provided in the middle of the top surface of the base (1), and the track plate (2) is embedded in the groove; a clamping mechanism (3) is slidably provided on the top of the middle of the four sides of the base (1); the four clamping mechanisms (3) are symmetrically arranged in pairs and opposite to each other; the pull ring preform (5) is arranged above the track plate (2) and is clamped and fixed by the clamping mechanism (3); a runway-type slide rail (2-1) is provided on the track plate (2); a moving mechanism (4-6) matching the runway-type slide rail (2-1) is provided at the bottom of the winding mechanism (4); the winding mechanism (4) is slidably connected to the runway-type slide rail (2-1) through the moving mechanism (4-6); the top of the winding mechanism (4) surrounds the pull ring preform (5) and is movably arranged.

2. The composite material ring winding forming device according to claim 1, characterized in that: The winding mechanism (4) comprises a retaining frame (4-1), a rotating ring (4-2), a positioning ring (4-3) and a fiber placement frame (4-5); one side of the retaining frame (4-1) is connected to the moving mechanism (4-6) via a first connecting rod; the other side of the retaining frame (4-1) is provided with an annular groove; the rotating ring (4-2) and the positioning ring (4-3) are both circular rings with a notch; the rotating ring (4-2) is arranged in the annular groove; the rotating ring (4-2) surrounds the pull ring preform (5) and is rotatably arranged; the positioning ring (4-3) is arranged on the inner side of the rotating ring (4-2); and the fiber placement frame (4-5) is connected to the rotating ring (4-2) via bolts.

3. The composite material ring winding forming device according to claim 2, characterized in that: The positioning ring (4-3) and the rotating ring (4-2) are connected via a fixing frame (4-4).

4. The composite material ring winding forming device according to claim 3, characterized in that: The positioning ring (4-3) and the fixing frame (4-4), as well as the rotating ring (4-2) and the fixing frame (4-4), are all connected via bolts.

5. The composite material ring winding forming device according to claim 1, characterized in that: The clamping mechanism (3) comprises a connecting block (3-1), a fixing plate (3-4), a motor (3-5), a first connecting rod (3-7), a second connecting rod (3-9) and a second connecting rod (3-2). The bottom of the connecting block (3-1) is connected to the T-shaped slider (3-3) via the second connecting rod (3-2). The fixing plate (3-4) is arranged on one side of the connecting block (3-1). The motor (3-5) is arranged on the fixing plate (3-4). The output end of the motor (3-5) passes through the fixing plate (3-4) and is connected to a first gear (3-6). One end of the first connecting rod (3-7) is provided with a second gear meshing with the first gear (3-6). A gear (3-8) is provided at one end of the second connecting rod (3-9) with a third gear (3-10) meshing with the second gear (3-8); the second gear (3-8) and the third gear (3-10) are both rotatably arranged on the fixed plate (3-4); the other end of the first connecting rod (3-7) and the other end of the second connecting rod (3-9) are both rotatably connected to a clamping rod (3-11); one end of the two clamping rods (3-11) is rotatably connected to the first connecting rod (3-7) and the second connecting rod (3-9) respectively; the other end of the two clamping rods (3-11) is provided with a clamping claw (3-12); and the two clamping claws (3-12) are arranged in a coordinated manner.

6. The composite material ring winding forming device according to claim 5, characterized in that: A neoprene clamping block (3-13) is provided on the inner sides of the two clamping jaws (3-12).

7. The composite material ring winding forming device according to claim 1, characterized in that: The base (1) and the track plate (2) are both provided with a T-shaped sliding groove that matches the T-shaped sliding block (3-3).

8. A forming method of the composite material ring winding forming device according to claim 1, characterized in that: The following steps are involved: Step 1: Install the track plate (2), the clamping mechanism (3) and the winding mechanism (4) on the base (1) in sequence; Step 2: placing the wound yarn ball on the fiber placement rack (4-5) of the winding mechanism (4); Step 3: inserting the pull ring preform (5) through the opening of the rotating ring (4-2) of the winding mechanism (4), and placing the pull ring preform (5) at the rotation center of the rotating ring (4-2), clamping and fixing it through one pair of oppositely arranged clamping mechanisms (3), and pre-winding one end of the fiber of the winding yarn ball on the pull ring preform (5) and adjusting the initial tension; Step 4: Start the power supply, the winding mechanism (4) moves along the runway-type slide rail (2-1) on the track plate (2) through the moving mechanism (4-6) at the bottom, and at the same time, the rotating ring (4-2) on the winding mechanism (4) starts to rotate. When the winding mechanism (4) moves to one of the pair of clamping mechanisms (3) that clamp the pull ring preform (5), the other pair of clamping mechanisms (3) clamps and holds the pull ring preform (5), and then the pair of clamping mechanisms (3) that have clamped the pull ring preform (5) are released to ensure that the winding mechanism (4) passes through the clamping mechanism (3), so that the winding mechanism (4) drives the fibers on the winding yarn to be evenly wound on the pull ring preform (5) until the workpiece is formed.

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