A carbon fiber prepreg layup positioning jig

Abstract

The utility model discloses a kind of carbon fiber prepreg layup positioning fixture, including bottom plate, fixedly connected with mounting frame on the bottom plate, the top of the bottom plate is fixedly connected with four positioning blocks, the mounting frame is inserted with screw rod threadedly connected with it, the bottom end of the screw rod is rotatably connected with lifting plate, the left and right sides of the lifting plate are all slidably connected with mounting frame, the bottom of the lifting plate is fixedly connected with two vertical boards, rotatably connected with rotary plate between two vertical boards, locking mechanism is provided on the rotary plate, and pressure sensor is mounted on the top and bottom of the rotary plate. The utility model, before positioning and compacting to the carbon fiber prepreg of stacking, adjacent two carbon fiber prepregs between bubble can be extruded by rubber block, the effect of removing bubble is realized, and then the quality of subsequent carbon fiber prepreg processing is improved, and the practicability of device is improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, and more specifically, to a carbon fiber prepreg ply positioning fixture. Background Technology

[0002] Carbon fiber prepreg layup positioning fixtures are specialized tools used in the composite material manufacturing process to precisely position and fix carbon fiber prepreg sheets, ensuring that each layer is accurately stacked according to design requirements, ultimately forming composite material structural components that meet the design shape and performance.

[0003] When using positioning fixtures to hold stacked carbon fiber prepregs, air bubbles are prone to form between adjacent carbon fiber prepregs during the stacking process. Directly squeezing the stacked carbon fiber prepregs makes it difficult to expel the air bubbles, which ultimately affect the processing quality. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a carbon fiber prepreg layup positioning fixture, which solves the problem that existing positioning fixtures are difficult to effectively remove air bubbles when clamping stacked carbon fiber prepregs, thus affecting processing quality.

[0005] To solve the above problems, the present invention adopts the following technical solution;

[0006] A carbon fiber prepreg layup positioning fixture includes a base plate, a mounting frame fixedly connected to the base plate, four positioning blocks fixedly connected to the top of the base plate, a threaded rod threaded through the mounting frame, a lifting plate rotatably connected to the bottom end of the threaded rod, two vertical plates fixedly connected to the bottom of the lifting plate, a rotating plate rotatably connected between the two vertical plates, a locking mechanism on the rotating plate, pressure sensors mounted on the top and bottom of the rotating plate, pressure plates fixedly connected to opposite sides of the two pressure sensors, and a conical rubber block fixedly connected to the bottom of the bottom pressure plate.

[0007] As a further description of the above technical solution:

[0008] The locking mechanism includes four fixing blocks, one side of each of the four fixing blocks is fixedly connected to two vertical plates, and each of the four fixing blocks is threaded with a bolt. The rotating plate has two insertion holes on its left and right sides that are compatible with the bolts.

[0009] As a further description of the above technical solution:

[0010] The rotating plate has two through holes, and the inner walls of the two through holes are slidably connected to two sliding rods. One end of each of the four sliding rods is fixedly connected to two pressure plates.

[0011] As a further description of the above technical solution:

[0012] A horizontal plate is fixedly connected to the top of the lead screw, and a handle is rotatably connected to the top of the horizontal plate.

[0013] As a further description of the above technical solution:

[0014] The top of the base plate is fitted with a top plate that is slidably connected thereto, and the bottom of the base plate is threadedly connected thereto with a screw rod, the top of which is rotatably connected to the top plate.

[0015] As a further description of the above technical solution:

[0016] The top of the positioning block is provided with a guide groove, and one side of the guide groove is inclined downward.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] Before positioning and compacting the stacked carbon fiber prepregs, this solution uses rubber blocks to squeeze out air bubbles between adjacent carbon fiber prepregs, thereby removing air bubbles and improving the quality of subsequent carbon fiber prepreg processing, thus enhancing the practicality of the device. Attached Figure Description

[0019] Figure 1 One of the perspective views of this utility model;

[0020] Figure 2 This is a second perspective view of the present utility model;

[0021] Figure 3 This is a third perspective view of the present utility model;

[0022] Figure 4 This is a cross-sectional view of the present invention.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base plate; 2. Mounting frame; 3. Positioning block; 4. Screw rod; 5. Lifting plate; 6. Vertical plate; 7. Rotating plate; 8. Locking mechanism; 801. Fixing block; 802. Bolt; 803. Insertion hole; 9. Pressure sensor; 10. Pressure plate; 11. Rubber block; 12. Through hole; 13. Slide rod; 14. Horizontal plate; 15. Handle; 16. Top plate; 17. Screw rod; 18. Guide groove. Detailed Implementation

[0025] 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;

[0026] Please see Figures 1-4 In this utility model: a carbon fiber prepreg layup positioning fixture includes a base plate 1, a mounting frame 2 fixedly connected to the base plate 1, four positioning blocks 3 fixedly connected to the top of the base plate 1, a threaded rod 4 threadedly connected to the mounting frame 2, a lifting plate 5 rotatably connected to the bottom end of the threaded rod 4, the left and right sides of the lifting plate 5 being slidably connected to the mounting frame 2, two vertical plates 6 fixedly connected to the bottom of the lifting plate 5, a rotating plate 7 rotatably connected between the two vertical plates 6, and a locking mechanism 8 provided on the rotating plate 7. Pressure sensors 9 are installed at both the top and bottom. Pressure plates 10 are fixedly connected to the opposite sides of the two pressure sensors 9. A rubber block 11 is fixedly connected to the bottom of the bottom pressure plate 10. The rubber block 11 is cone-shaped. The locking mechanism 8 includes four fixing blocks 801. One side of each of the four fixing blocks 801 is fixedly connected to two vertical plates 6. Bolts 802 are threaded through each of the four fixing blocks 801. Two insertion holes 803 that are compatible with the bolts 802 are opened on both the left and right sides of the rotating plate 7.

[0027] In this invention, when positioning and clamping the carbon fiber prepreg, the carbon fiber prepreg is first placed on top of the bottom plate 1. The four positioning blocks 3 can position the carbon fiber prepreg. After placing one layer of carbon fiber prepreg, the second layer can be placed. When the second layer is placed, the user rotates the lead screw 4, which drives the lifting plate 5 to descend along the inner side of the mounting frame 2. Then, the vertical plate 6 drives the rotating plate 7 to descend. Then, the bottom pressure plate 10 drives the rubber block 11 to move closer to the carbon fiber prepreg. The rubber block 11 is conical in shape, and the cone apex of the rubber block 11 is facing downwards. Therefore, the cone apex of the rubber block 11 first contacts the center of the carbon fiber prepreg. As the pressure plate 10 descends, the rubber block 11 squeezes the carbon fiber prepreg, generating radial stress. As the pressure plate 10 descends, the rubber block 11 deforms and gradually moves towards the edge of the carbon fiber prepreg. During this process, the rubber block 11 pushes out air bubbles between two adjacent carbon fiber prepregs, thus removing air bubbles between them. Then, the screw 4 is rotated in the opposite direction to raise the rubber block 11, allowing the third layer of carbon fiber prepreg to be placed. After the third layer is placed, air bubbles are removed in the same way. The above operation is repeated to place the required number of carbon fiber prepregs, thus completing the positioning of the carbon fiber prepreg.

[0028] After positioning the carbon fiber prepreg, the user rotates the four bolts 802, which pull out the insertion holes 803 on the rotating plate 7. At this time, the rotating plate 7 is unlocked. The user rotates the rotating plate 7 180 degrees, so that the top pressure plate 10 is set downwards and the rubber block 11 is set upwards. Then, the user rotates the four bolts 802 in the opposite direction, and the bolts 802 are reinserted into the insertion holes 803, thus locking the rotating plate 7. At this time, the user rotates the screw 4, and the pressure plate 10 moves towards the stacked carbon fiber prepreg until the pressure plate 10 is in close contact with the carbon fiber prepreg. At this time, the carbon fiber prepreg is squeezed between the pressure plate 10 and the bottom plate 1, thus achieving the effect of clamping the carbon fiber prepreg.

[0029] When the pressure plate 10 drives the rubber block 11 to compress the carbon fiber prepreg and remove air bubbles between two adjacent carbon fiber prepregs, the pressure sensor 9 will detect the pressure on the carbon fiber prepreg. When the pressure plate 10 is used to press the carbon fiber prepreg after the air bubbles have been removed, the pressure sensor 9 can also detect the pressure on the carbon fiber prepreg. By observing the value detected by the pressure sensor 9, the user can easily control the extrusion pressure on the carbon fiber prepreg, avoid over-extrusion or insufficient extrusion pressure, and improve the pressing effect and air bubble removal effect of the carbon fiber prepreg.

[0030] Please see Figure 4 The rotating plate 7 has two through holes 12, and the inner walls of the two through holes 12 are slidably connected to two slide rods 13. One end of each of the four slide rods 13 is fixedly connected to two pressure plates 10.

[0031] In this invention, the through hole 12 and the slide bar 13 can limit the movement between the rotating plate 7 and the pressure plate 10, effectively improving the stability of the device.

[0032] Please see Figures 1-4 The top of the lead screw 4 is fixedly connected to a horizontal plate 14, and the top of the horizontal plate 14 is rotatably connected to a handle 15.

[0033] In this invention, the horizontal plate 14 and the handle 15 facilitate the user's rotation of the lead screw 4, thereby improving the practicality of the device.

[0034] Please see Figure 4 The base plate 1 has a top plate 16 slidably connected to the top plate 1, and a screw 17 threadedly connected to the bottom plate 1. The top end of the screw 17 is rotatably connected to the top plate 16.

[0035] In this invention, after the carbon fiber prepreg is processed, the user rotates the screw 4 in the opposite direction, and the pressure plate 10 rises. At this time, the carbon fiber prepreg will still be located between the four positioning blocks 3, which is not conducive to the user taking it out. The user can drive the top plate 16 to rise by rotating the screw 17. After the top plate 16 rises, it will push the processed carbon fiber prepreg out from between the positioning blocks 3, which makes it easier for the user to unload the carbon fiber prepreg and thus improves the practicality of the device.

[0036] Please see Figures 1-4 The top of the positioning block 3 is provided with a guide groove 18, and one side of the guide groove 18 is inclined downward.

[0037] In this invention, the guide groove 18 can guide the carbon fiber prepreg when the user places it, making it easier for the user to place the carbon fiber prepreg between the four positioning blocks 3, thereby improving the practicality of the device.

[0038] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A carbon fiber prepreg layup positioning fixture, comprising a base plate (1), characterized in that: A mounting frame (2) is fixedly connected to the base plate (1). Four positioning blocks (3) are fixedly connected to the top of the base plate (1). A screw rod (4) threadedly connected to the mounting frame (2) is inserted into the mounting frame (2). A lifting plate (5) is rotatably connected to the bottom end of the screw rod (4). The left and right sides of the lifting plate (5) are slidably connected to the mounting frame (2). Two vertical plates (6) are fixedly connected to the bottom of the lifting plate (5). A rotating plate (7) is rotatably connected between the two vertical plates (6). A locking mechanism (8) is provided on the rotating plate (7). Pressure sensors (9) are installed at the top and bottom of the rotating plate (7). A pressure plate (10) is fixedly connected to the opposite side of the two pressure sensors (9). A rubber block (11) is fixedly connected to the bottom of the pressure plate (10). The rubber block (11) is conical in shape.

2. The carbon fiber prepreg layup positioning fixture according to claim 1, characterized in that: The locking mechanism (8) includes four fixing blocks (801), one side of each of the four fixing blocks (801) is fixedly connected to two vertical plates (6), and each of the four fixing blocks (801) is threaded with a bolt (802). The rotating plate (7) has two insertion holes (803) on its left and right sides that are compatible with the bolts (802).

3. The carbon fiber prepreg layup positioning fixture according to claim 1, characterized in that: The rotating plate (7) has two through holes (12), and the inner walls of the two through holes (12) are slidably connected to two slide rods (13). One end of each of the four slide rods (13) is fixedly connected to two pressure plates (10).

4. A carbon fiber prepreg layup positioning fixture according to claim 1, characterized in that: A horizontal plate (14) is fixedly connected to the top of the lead screw (4), and a handle (15) is rotatably connected to the top of the horizontal plate (14).

5. A carbon fiber prepreg layup positioning fixture according to claim 1, characterized in that: The top of the base plate (1) is fitted with a top plate (16) that is slidably connected thereto, and the bottom of the base plate (1) is threadedly connected to a screw (17), the top of the screw (17) being rotatably connected to the top plate (16).

6. A carbon fiber prepreg layup positioning fixture according to claim 1, characterized in that: The top of the positioning block (3) is provided with a guide groove (18), and one side of the guide groove (18) is inclined downward.

Images