A 3D fiber braiding and winding integrated molding device and its usage method

Abstract

The present application provides a 3D fiber braiding and winding integrated forming device and its usage method, belonging to the technical field of composite material forming. It includes a connecting column, a turntable transmission mechanism, a central disk, a turntable, a yarn carrier fixing chassis, a yarn carrier movement track, a yarn carrier, a track transmission mechanism, a multi-degree-of-freedom manipulator, a sliding seat, and a sliding rail. The 3D fiber braiding and winding integrated forming device of the present application has a reasonable structure and is of great significance for conveniently and efficiently completing the forming work of braided, wound, and combined fabrics of the two.

Description

Technical Field

[0001] The present application relates to a 3D fiber braiding and winding integrated forming device and its usage method, belonging to the technical field of composite material forming. Background Art

[0002] Composite materials with high specific strength are widely used in engineering fields such as automobiles, aviation, and marine. Corresponding products, such as composite material reinforcements, are generally manufactured by methods such as braiding, winding, weaving, and knitting. Among them, fiber braiding and winding are common methods for manufacturing composite components such as pipe fittings, pressure vessels, and cylinders.

[0003] The winding structure forms relatively high in-plane mechanical properties through unidirectionally laid high axial elastic modulus tow, but its out-of-plane impact resistance is poor:

[0004] 1) The difference in ply angles leads to mismatched interlayer stiffness, so delamination damage is easily induced under impact loads;

[0005] 2) Cracks are extremely easy to propagate in the unidirectional structure with a low fiber curvature, so its post-impact performance is significantly reduced.

[0006] The braided structure has quasi-isotropic stiffness due to the interlacing of tows, which can inhibit interlayer delamination, and crack propagation often deflects at the tow interlacing points, so its impact resistance is excellent. However, the relatively high fiber curvature of the interlaced yarns also reduces its in-plane mechanical properties to a certain extent.

[0007] Therefore, in the fields of actual production and scientific research, it is often necessary to combine two textile structures to manufacture composite components with higher strength and more stable performance. In current production, to achieve the combination of these two textile structures, a working method of linking a winding machine and a braiding machine is mostly adopted. However, this working method requires continuous disassembly and installation of the spindle, which reduces production efficiency and increases labor costs. Therefore, there is an urgent need for a device that can simultaneously achieve composite material fiber braiding and winding.

[0008] At the same time, in traditional fiber braiding and fiber winding methods, the machine controls the movement of the mandrel while transporting the yarn at a certain speed. On the one hand, this method is not precise enough in controlling the winding angle, and the quality of the finished product is not high; on the other hand, this method has limitations on the size and placement position of the mandrel and is not suitable for large and special-shaped components.

[0009] Therefore, to solve the above problems, it is very necessary to provide an innovative machine device that combines braiding and winding structures and can achieve 3D textile to overcome the defects of the existing 3D fiber braiding and winding methods. Summary of the Invention

[0010] In view of this, the present application first provides a 3D fiber braiding and winding integrated forming device, which can accurately, efficiently and conveniently complete two operations of fiber braiding and winding in multiple dimensions, and is applicable to the braiding and winding of large-sized special-shaped components.

[0011] Specifically, the present application is implemented through the following solutions:

[0012] A 3D fiber braiding and winding integrated forming device includes a connecting column, a turntable transmission mechanism, a turntable motor, a central disk, a turntable, a yarn carrier fixed chassis, a yarn carrier movement track, a yarn carrier, rollers, a fixed bracket, an orbit transmission mechanism, a multi-degree-of-freedom manipulator, a sliding seat, and a sliding rail.

[0013] The connecting column connects the multi-degree-of-freedom manipulator and the central disk, enabling the multi-degree-of-freedom manipulator to drive the central disk to move.

[0014] The central disk is equipped with a fixed bracket, rollers, a turntable motor, and a turntable transmission mechanism; the turntable is placed in the groove of the rollers.

[0015] The turntable is equipped with a yarn carrier movement track.

[0016] The yarn carrier fixed chassis is installed on the yarn carrier movement track.

[0017] The yarn carrier is clamped by the yarn carrier movement track and the yarn carrier fixed chassis.

[0018] The turntable transmission mechanism drives the turntable through the turntable motor, thereby driving the yarn carrier movement track, the yarn carrier fixed chassis, and the yarn carrier to rotate simultaneously in a circular motion.

[0019] The orbit transmission mechanism is installed on the non-working surface of the yarn carrier movement track and drives the yarn carrier movement track to operate.

[0020] The multi-degree-of-freedom manipulator is placed on the sliding seat and slides relative to the sliding rail.

[0021] Further, as a preference:

[0022] The rollers are annularly installed on the central disk and clamp the turntable.

[0023] The yarn carrier movement track is fixed to the turntable by bolts, and the outer diameter of the turntable is larger than the outer diameter of the yarn carrier movement track.

[0024] The fixed bracket is annularly installed on the central disk, and the extended part is suspended between the turntable and the yarn carrier movement track, with a length just covering the exposed part of the edge of the turntable.

[0025] The yarn carrier movement track is composed of a bearing, a gear transmission shaft, an orbit fixing disc, a gear, an end cover, an irregular bolt, and an orbit transmission mechanism. The large-diameter part of the gear transmission shaft is embedded in the bearing within the orbit fixing disc, the small-diameter part fixes the gear through a flat key, and finally the orbit fixing disc, the gear transmission shaft, and the end cover are strung together by the irregular bolt in sequence. The connection between the end cover and the irregular bolt is a threaded connection, and the end cover and the fixed chassis of the yarn carrier are on the same horizontal plane.

[0026] The orbit transmission mechanism is installed on the non-working surface of the yarn carrier movement track and consists of a transmission gear, a motor gear, and an orbit motor. Among them, the transmission gear is directly welded to the gear transmission shaft in the yarn carrier movement track. Thus, when the orbit motor starts, it drives the motor gear to operate, and at the same time drives the transmission gear on the same plane to work, thereby causing a certain gear on the yarn carrier movement track to rotate, and then driving other gears on the entire yarn carrier movement track to move, so as to realize the fiber braiding work.

[0027] The yarn carrier is clamped by the yarn carrier movement track and the fixed chassis of the yarn carrier. Specifically, the peripheral part of the chassis of the yarn carrier is located between the end cover and the gear of the yarn carrier movement track in the vertical direction, the shuttle-shaped column part is between the end cover and the fixed chassis of the yarn carrier in the horizontal direction, and the circular column part is in the gear groove of the yarn carrier movement track.

[0028] The turntable transmission mechanism includes a main pulley, a main shaft, a V-belt, a driven pulley, a driven shaft, and a rubber wheel; the main pulley is fixed on the central disc by the main shaft, it is connected to the driven pulley through the V-belt, the driven pulley is fixed on the central disc through the driven shaft, and the rubber wheel is fixed at the same time.

[0029] Secondly, the second aspect objective of this application is to provide a usage method of the above device, including the following steps:

[0030] 1) Install the spindle on the yarn carrier;

[0031] 2) Place the multi-degree-of-freedom manipulator on the slide seat, turn on the slide seat motor, so that the multi-degree-of-freedom manipulator moves on the slide rail, and the multi-degree-of-freedom manipulator drives the central disc to control its feed speed and precise position;

[0032] 3) Turn on the turntable motor and turn off the orbit motor. The turntable motor realizes the circular rotation of the turntable and the yarn carrier movement track and the fixed chassis of the yarn carrier installed thereon through the turntable transmission mechanism, indirectly driving the yarn carrier to perform circular rotation, thereby realizing the fiber winding work. At the same time, the rotation speed of the turntable can be adjusted to control the precise winding speed, and high-quality winding components can be produced.

[0033] 4) Turn on the track motor and turn off the turntable motor. The track motor drives the yarn carrier moving track to run through the track transmission mechanism. The rotation of the gears in the yarn carrier moving track drives the two groups of yarn carriers to move along the sine trajectory in the clockwise and counterclockwise directions respectively, realizing the fiber braiding work.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The 3D fiber braiding and winding forming integrated device of the present invention can simultaneously realize the braiding and winding of fibers on one machine, meeting the requirements of a component with a hybrid braided and wound structure. It omits the steps of continuously disassembling and installing the spindle in the traditional method, greatly improving the work efficiency and saving manpower and material resources;

[0036] 2. The 3D fiber braiding and winding forming integrated device of the present invention can achieve precise control of the moving position of the central disk in multiple dimensions through a multi-degree-of-freedom manipulator, greatly improving the convenience and controllability of fabric braiding and winding work;

[0037] 3. The 3D fiber braiding and winding forming integrated device of the present invention can accurately control the fiber winding speed by controlling the track transmission mechanism to drive the turntable and the yarn carrier moving track to rotate through the track motor. Combining with the movement of the multi-degree-of-freedom manipulator can precisely control the winding angle, which plays a key role in the performance of subsequent composite material wound components;

[0038] 4. The 3D fiber braiding and winding forming integrated device of the present invention has no high requirements for the shape and size of the target mandrel and can be adapted to large-sized special-shaped components. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a three-dimensional structural schematic diagram of the present application;

[0040] Figure 2 is a three-dimensional structural schematic diagram of the turntable transmission mechanism in the present application;

[0041] Figure 3 is a structural schematic diagram of the turntable in the present application;

[0042] Figure 4 is a three-dimensional view of the roller in the present application;

[0043] Figure 5 is a structural schematic diagram of the yarn carrier moving track in the present application;

[0044] Figure 6 is Figure 5 a three-dimensional structural schematic diagram of the irregular bolt in

[0045] Figure 7 is a structural schematic diagram of the yarn carrier moving track in the present application;

[0046] Figure 8 Schematic diagram of the matching structure between the track drive mechanism and the irregular bolt in this application;

[0047] Figure 9 Schematic diagram of the connection structure between the yarn carrier motion track and the track drive mechanism in this application;

[0048] Figure 10 Schematic diagram of the three-dimensional structure of the yarn carrier in this application;

[0049] Figure 11 Is the three-dimensional structure diagram of the sliding seat in this application.

[0050] Reference numerals in the figure: 1. Connecting column; 11. Sliding seat; 111. Sliding seat motor; 12. Multi-degree-of-freedom manipulator; 13. Slide rail; 2. Turntable; 21. Turntable drive mechanism; 211. Main pulley; 212. Main shaft; 213. V-belt; 214. Driven pulley; 215. Driven shaft; 216. Rubber wheel; 22. Turntable motor; 3. Central disc; 4. Yarn carrier fixed chassis; 5. Yarn carrier motion track; 51. Bearing; 52. Gear transmission shaft; 53. Track fixed disc; 531. Non-working surface; 54. Gear; 55. End cover; 56. Irregular bolt; 6. Yarn carrier; 61. Circular column; 62. Chassis; 63. Spindle column; 64. Yarn carrier vertical rod; 65. Spindle; 7. Track drive mechanism; 71. Transmission gear; 72. Motor gear; 73. Track motor; 8. Roller; 81. Fixed bracket; 82. Groove. Detailed implementation manners

[0051] Please refer to the attached drawings of the specification Figure 1 to attached Figure 8 As shown, it is a fiber braiding / winding forming integrated device of the present invention. The device is composed of a connecting column 1, a turntable drive mechanism 21, a turntable motor 22, a central disc 3, a turntable 2, a yarn carrier fixed chassis 4, a yarn carrier motion track 5, a yarn carrier 6, a roller 8, a fixed bracket 81, a track drive mechanism 7, a multi-degree-of-freedom manipulator 12, a sliding seat 11, a slide rail 13, etc.

[0052] Among them, the connecting column 1 connects the multi-degree-of-freedom manipulator 12 and the central disc 3. The central disc 3 is installed with a fixed bracket 81, a roller 8, a turntable motor 22, and a turntable drive mechanism 21.

[0053] Furthermore, there are several rollers 8, which are installed on the central disc 3 in a ring shape. The turntable 2 is clamped in the groove 82 of the roller 8. The number of fixed brackets 81 is the same as that of the rollers 8, and they are also installed on the central disc 3 in a ring shape. The extended part is suspended between the turntable 2 and the yarn carrier motion track 5, and the length just covers the exposed part of the edge of the turntable 2.

[0054] The turntable drive mechanism 21 drives the turntable 2 through the turntable motor 22; the turntable 2 drives the yarn carrier movement track 5 to rotate. The yarn carrier movement track 5 is installed on the turntable 2 by bolts. The yarn carrier fixed chassis 4 is installed on the yarn carrier movement track 5, and the yarn carrier fixed chassis 4 and the end cover 55 on the yarn carrier movement track 5 are on the same plane.

[0055] The turntable drive mechanism 21 consists of several parts such as the main pulley 211, the main shaft 212, the V-belt 213, the driven pulley 214, the driven shaft 215, and the rubber wheel 216. The main pulley 211 is fixed on the center disc 3 by the main shaft 212. The main pulley 211 is connected to the driven pulley 214 through the V-belt 213. Both the driven pulley 214 and the rubber wheel 216 are pivotally connected to the center disc 3 through the driven shaft 215; the rubber wheel 216 is in frictional contact with the turntable 2, so that the rubber wheel 216 directly drives the turntable 2 to rotate.

[0056] A number of rollers 8 are provided and are annularly installed on the center disc 3. The grooves 82 of the rollers 8 clamp the turntable 2 to restrict the turntable 2. The fixed brackets 81 correspond to the rollers 8 and are also annularly installed on the center disc 3. The extended parts are suspended between the turntable 2 and the yarn carrier fixed chassis 4, and the length just covers the exposed part of the edge of the turntable 2 to further restrict the turntable 2.

[0057] The yarn carrier movement track 5 consists of a bearing 51, a gear transmission shaft 52, an orbit fixing disc 53, a gear 54, an end cover 55, an irregular bolt 56, and an orbit drive mechanism 7. The large-diameter part of the gear transmission shaft 52 is embedded in the bearing 51 in the orbit fixing disc 53, and the small-diameter part fixes the gear 54 through a flat key. Finally, the orbit fixing disc 53, the gear transmission shaft 52, and the end cover 55 are strung together by the irregular bolt 56 in sequence, and the end cover 55 and the irregular bolt 56 are in threaded connection.

[0058] The non-working surface 531 of the yarn carrier movement track is installed with an orbit drive mechanism 7 to drive the yarn carrier movement track 5 to operate; the orbit drive mechanism 7 consists of a transmission gear 71, a motor gear 72, and an orbit motor 73, and the motor gear 72 and the transmission gear 71 are in cylindrical straight-tooth transmission.

[0059] The yarn carrier 6 is clamped by the yarn carrier movement track 5 and the yarn carrier fixed chassis 4. Specifically, the peripheral part of the chassis 62 of the yarn carrier 6 is located between the end cover 55 of the yarn carrier movement track 5 and the vertical direction of the gear 54, and at the same time, the shuttle-shaped column 63 part is between the end cover 55 and the horizontal direction of the yarn carrier fixed chassis 4, and the circular column 61 part is in the gear groove of the yarn carrier movement track 5.

[0060] The multi-degree-of-freedom manipulator 12 is placed on the slide seat 11 and slides relative to the slide rail 13.

[0061] The method for 3D braiding and winding fibers using the above fiber braiding / winding integrated device includes the following steps:

[0062] 1), Install the spindle 65 on the yarn carrier 6. Specifically, put the spindle 65 on the vertical rod 64 of the yarn carrier and fix it;

[0063] 2), Place the multi-degree-of-freedom manipulator 12 on the slide base 11. Turn on the slide base motor 111 to make the multi-degree-of-freedom manipulator 12 move on the slide rail 13. Drive the central disk 3 through the multi-degree-of-freedom manipulator 12 to control its feeding speed and precise position, and at the same time realize the multi-dimensional movement of the central disk 3.

[0064] 3), Turn on the turntable motor 22 and turn off the track motor 73. The turntable motor 22 realizes the circular rotation of the turntable 2 and the yarn carrier movement track 5 and the yarn carrier fixed chassis 4 installed thereon through the turntable transmission mechanism 21, indirectly driving the yarn carrier 6 to perform circular rotation, thereby realizing the fiber winding work. At the same time, the rotation speed of the turntable 2 can be adjusted to control the precise winding speed, and high-quality winding components can be produced.

[0065] 4), Turn on the track motor 73 and turn off the turntable motor 22. The track motor 73 drives the yarn carrier movement track 5 to operate through the track transmission mechanism 7. While the gear 54 in the yarn carrier movement track 5 rotates, the yarn carrier 6 is automatically divided into two groups and performs sinusoidal trajectory movements in the clockwise and counterclockwise directions respectively to realize the fiber braiding work.

Claims

1. A 3D fiber braiding and winding integrated forming device, characterized in that: It includes a connecting column, a turntable transmission mechanism, a central disk, a turntable, a yarn carrier fixing chassis, a yarn carrier movement track, a yarn carrier, a track transmission mechanism, a multi-degree-of-freedom manipulator, a sliding seat, and a slide rail. The sliding seat is slidably mounted on the slide rail, and a multi-degree-of-freedom manipulator is arranged on the sliding seat. A connecting column is installed at the end of the multi-degree-of-freedom manipulator, and the connecting column is connected with the central disk, so that the multi-degree-of-freedom manipulator drives the central disk to move. The turntable and the turntable transmission mechanism are installed on the central disk, and the turntable is driven by the turntable transmission mechanism. The yarn carrier movement track is installed on the turntable, the yarn carrier fixing chassis is installed on the yarn carrier movement track, and the yarn carrier is clamped by the yarn carrier movement track and the yarn carrier fixing chassis. The track transmission mechanism is installed on the non-working surface of the yarn carrier movement track and drives the yarn carrier movement track to operate. The turntable rotates, driving the yarn carrier movement track, the yarn carrier fixing chassis and the yarn carrier to rotate in a circle at the same time, while adjacent yarn carriers perform sinusoidal trajectory movements in two clockwise and counterclockwise directions respectively. The track transmission mechanism consists of a transmission gear, a motor gear, and a track motor. The transmission gear is directly connected to the gear transmission shaft in the yarn carrier movement track. When the track motor starts, it drives the motor gear to operate, and at the same time drives the transmission gear on the same plane to work, thereby causing the corresponding gears on the yarn carrier movement track to rotate, and then driving the remaining gears on the entire yarn carrier movement track to move. The yarn carrier movement track consists of a bearing, a gear transmission shaft, a track fixing disk, a gear, an end cover, an irregular bolt, and a track transmission device. The gear transmission shaft includes a large-diameter part and a small-diameter part. The large-diameter part is embedded in the bearing in the track fixing disk, and the small-diameter part fixes the gear. The irregular bolt successively strings together the track fixing disk, the gear transmission shaft, and the end cover. The end cover is threadedly connected with the irregular bolt, and the end cover and the yarn carrier fixing chassis are located on the same horizontal plane.

2. The 3D fiber braiding and winding integrated forming device according to claim 1, characterized in that: A number of rollers are also arranged on the central disk, and the turntable is placed between the number of rollers.

3. A 3D fiber braiding and winding integrated forming device according to claim 2, characterized in that: The rollers are annularly installed on the central disk and clamp the turntable.

4. A 3D fiber braiding and winding integrated forming device according to claim 1, characterized in that: Each gear is evenly distributed with grooves, and the yarn carrier is placed in the grooves, so that all the yarn carriers on the yarn carrier movement track are continuously arranged in a quasi-sinusoidal pattern. The rotation directions of adjacent gears are opposite. When the track motor starts, the yarn carriers are automatically divided into two groups under the push of the gears and perform sinusoidal trajectory movements in two clockwise and counterclockwise directions respectively.

5. A 3D fiber braiding and winding integrated forming device according to claim 1, characterized in that: The yarn carrier includes a chassis, a spindle-shaped column, and a circular column. The periphery of the chassis is between the end cover and the vertical direction of the gear, the spindle-shaped column is between the end cover and the horizontal direction of the yarn carrier fixing chassis, and the circular column is in the gear groove of the yarn carrier movement track.

6. A 3D fiber braiding and winding integrated forming device according to claim 1, characterized in that: The yarn carrier movement track is fixed on the turntable by bolts, and the outer diameter of the turntable is larger than the outer diameter of the yarn carrier movement track.

7. A 3D fiber braiding and winding integrated molding device according to claim 1, characterized in that: A fixed bracket is installed on the central disk, the fixed bracket is arranged corresponding to the rollers, the fixed bracket is provided with an extended part, and the extended part is suspended between the turntable and the yarn carrier movement track, and its length just covers the exposed part of the edge of the turntable.

8. A method for using the 3D fiber braiding and winding integrated forming device according to claim 1, characterized in that, It includes the following steps: 1) Install the spindle on the yarn carrier. 2) Place the multi-degree-of-freedom manipulator on the sliding seat, start the sliding seat, the multi-degree-of-freedom manipulator moves on the slide rail, and the multi-degree-of-freedom manipulator drives the center disk to control its feeding speed and precise position; 3) Turn on the turntable transmission mechanism. The turntable transmission mechanism realizes the circular rotation of the turntable and the movement track of the yarn carrier and the fixed chassis of the yarn carrier installed thereon, indirectly drives the circular rotation of the yarn carrier, and at the same time cooperates with the movement of the multi-degree-of-freedom manipulator on the slide rail to realize the fiber winding work, and adjusts the rotation speed of the turntable according to the manufacturing requirements to control the winding speed; 4) Start the track transmission mechanism and turn off the turntable transmission mechanism. The track transmission mechanism drives the movement track of the yarn carrier to run, and drives two adjacent groups of yarn carriers to move along the sine trajectory in the clockwise and counterclockwise directions respectively to realize the fiber braiding work.

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