Thermoplastic composite material structural part forming device
The apparatus maintains tension and temperature control during the forming process of thermoplastic composites, addressing defects by allowing controlled bending and stress management.
Patent Information
- Application Number
- CN202421689664.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In the prior art, thermoplastic composite materials cannot maintain a specific stress-tight state during heating, resulting in defects in molded parts and cannot meet the requirements of high yield rates.
The device design is adopted that includes a first material frame, a second material frame, a connecting plate and a first elastic member, so that the material frame maintains an initial position and a deformed position during the heating process, and through the cooperation of the elastic member and the compression spring, it is ensured that the composite material maintains a specific stress-tightening state during the heating process.
The deformation treatment of composite materials during heating is realized, avoiding part defects and improving molding yield.
Smart Images
Figure CN223099930U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite material manufacturing, in particular to a forming device for thermoplastic composite structural parts. Background Art
[0002] Stamping forming has a high degree of automation and is the main forming technology for thermoplastic composite parts. It can achieve the processing purpose of highly automated rapid forming. Generally, by adopting a material clamping control device suitable for the configuration of structural parts, the material can be heated in a heating device, rapidly transferred, positioned on a tooling, deformed, stamped, etc., and the processes can be completed quickly and stably.
[0003] Thermoplastic composites are mainly composed of continuous fibers and high-performance thermoplastic resins. Generally, they are prefabricated and laminated and bent into the required configuration. During the heating process, it is necessary to control the material to be in a specific stressed and tensioned state in the heating device to control the bending angle and extension direction of the reinforcing fibers so that they are not disordered. Otherwise, defects are very likely to occur. In the prior art, mainly a metal rigid structure material frame is used, which is only suitable for material heating and cannot bend the heated material. It can only be transferred to a deformation device for processing. During this period, the material cannot maintain a specific stressed and tensioned state, and the cooling of the material also changes the material properties, resulting in defects in the formed parts and unable to meet the requirements of the parts.
[0004] Therefore, there is an urgent need for a forming device for thermoplastic composite structural parts to solve the above technical problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a forming device for thermoplastic composite structural parts, which can perform deformation treatment during the heating process of the composite material, ensure that the composite material maintains a specific stressed and tensioned state and temperature, avoid defects in the parts, and improve the yield rate.
[0006] To achieve the above object, the utility model adopts the following technical solutions:
[0007] A forming device for thermoplastic composite structural parts, comprising: a first material frame, a second material frame, a connecting plate and a first elastic member. The first material frame and the second material frame are respectively rotatably connected to both ends of the connecting plate, so that the first material frame and the second material frame have an initial position and a deformation position. The connecting plate is provided with an arc surface, and the first elastic member is wound around the arc surface, and both ends of the first elastic member are respectively connected to the first material frame and the second material frame, so that the first material frame and the second material frame always have a tendency to be in the initial position.
[0008] As a preferred technical solution of the above-mentioned thermoplastic composite structural member forming device, the thermoplastic composite structural member forming device further includes a compression spring, the compression spring is connected to the connecting plate, and two ends of the compression spring are respectively connected to the first material frame and the second material frame, so that the first material frame and the second material frame always have a tendency to be in the initial position.
[0009] As a preferred technical solution of the above-mentioned thermoplastic composite structural member forming device, the thermoplastic composite structural member forming device further includes a positioning shaft, the positioning shaft is fixed to the connecting plate, and the compression spring is sleeved on the positioning shaft.
[0010] As a preferred technical solution of the above-mentioned thermoplastic composite structural member forming device, the thermoplastic composite structural member forming device further includes a first stop block and a second stop block, the first stop block is fixed to the first material frame, the second stop block is fixed to the second material frame, and two ends of the compression spring can respectively abut against the first stop block and the second stop block.
[0011] As a preferred technical solution of the above-mentioned thermoplastic composite structural member forming device, a plurality of material pulling components are arranged at intervals on both the first material frame and the second material frame for fixing the composite material.
[0012] As a preferred technical solution of the above-mentioned thermoplastic composite structural member forming device, one end of the material pulling component can pass through the first material frame or the second material frame and is slidably connected to the first material frame or the second material frame, and the other end of the material pulling component can abut against the first material frame or the second material frame.
[0013] As a preferred technical solution of the above-mentioned thermoplastic composite structural member forming device, the material pulling component includes a bolt, a first nut, a second nut and a second elastic member, one end of the bolt passes through the first material frame or the second material frame and is threadedly connected to the first nut and the second nut, and the first nut and the second nut are arranged on both sides of the first material frame or the second material frame, and two ends of the second elastic member are respectively connected to one end of the bolt and the composite material.
[0014] As a preferred technical solution of the above-mentioned thermoplastic composite structural member forming device, both the first material frame and the second material frame are convexly provided with connecting ends, and the connecting ends are rotatably connected to the connecting plate.
[0015] As a preferred technical solution of the above-mentioned thermoplastic composite structural part forming device, the thermoplastic composite structural part forming device further includes a rotating bushing and a plurality of ball bearings. The inner circumference of the rotating bushing is connected to the connecting plate, the inner circumference of the connecting end is sleeved on the outer circumference of the rotating bushing, and the plurality of ball bearings are arranged at intervals along the circumferential direction of the rotating bushing on the rotating bushing. The ball bearings are exposed on the outer circumference of the rotating bushing, and the ball bearings are in contact with the inner circumference of the connecting end.
[0016] As a preferred technical solution of the above-mentioned thermoplastic composite structural part forming device, the thermoplastic composite structural part forming device further includes a cover plate. The cover plate is connected to the connecting plate, and the cover plate is located outside the rotating bushing.
[0017] Advantages of the present utility model:
[0018] The present utility model provides a thermoplastic composite structural part forming device. The thermoplastic composite structural part forming device includes: a first material frame, a second material frame, a connecting plate and a first elastic member. The first material frame and the second material frame are respectively rotatably connected to both ends of the connecting plate, so that the first material frame and the second material frame have an initial position and a deformed position. The connecting plate is provided with an arc surface, and the first elastic member is wound around the arc surface, and both ends of the first elastic member are respectively connected to the first material frame and the second material frame, so that the first material frame and the second material frame always have a tendency to be in the initial position. Compared with the prior art, this device can heat and deform the composite material without replacing the device, can deform the composite material during the heating process, ensure that the composite material maintains a specific stress tension state and temperature, avoid defects in the formed parts, and improve the yield rate. Description of the drawings
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative work, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.
[0020] Figure 1 It is a schematic structural diagram of the thermoplastic composite structural part forming device provided by the embodiment of the present utility model;
[0021] Figure 2 It is a schematic structural diagram of the connecting plate provided by the embodiment of the present utility model;
[0022] Figure 3 It is a schematic structural diagram of the connecting end provided by the embodiment of the present utility model;
[0023] Figure 4 The structural schematic diagram of the material pulling component provided by the embodiment of the present utility model;
[0024] Figure 5 The structural schematic diagram of the initial position of the thermoplastic composite structural part forming device provided by the embodiment of the present utility model;
[0025] Figure 6 The structural schematic diagram of the deformed position of the thermoplastic composite structural part forming device provided by the embodiment of the present utility model.
[0026] In the figure:
[0027] 1. First material frame; 101. Connection end; 2. Second material frame; 3. Connection plate; 31. Installation groove; 4. First elastic member; 5. Compression spring; 6. Positioning shaft; 7. First stop block; 8. Second stop block; 9. Material pulling component; 91. Bolt; 911. Connection hole; 92. First nut; 93. Second nut; 94. Second elastic member; 941. Oval hook; 10. Rotating bushing; 11. Ball; 12. Cover plate; 13. Screw; 14. Connecting rod; 15. Flange. Detailed implementation manners
[0028] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.
[0029] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0030] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.
[0031] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left" and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0032] As Figures 1 to 2 shown, the present utility model provides a forming device for a thermoplastic composite structure member. The forming device for a thermoplastic composite structure member includes: a first material frame 1, a second material frame 2, a connecting plate 3 and a first elastic member 4. Specifically, the first material frame 1 and the second material frame 2 are respectively rotatably connected to both ends of the connecting plate 3, so that the first material frame 1 and the second material frame 2 have an initial position and a deformed position. The connecting plate 3 is provided with an arc surface, and the first elastic member 4 is wound around the arc surface, and both ends of the first elastic member 4 are respectively connected to the first material frame 1 and the second material frame 2, so that the first material frame 1 and the second material frame 2 always have a tendency to be in the initial position. Compared with the prior art, this device can heat and deform the composite material without replacing the device, can deform the composite material during the heating process, ensure that the composite material maintains a specific stress tension state and temperature, avoid defects in the formed parts, and improve the qualified product rate.
[0033] Optionally, in this embodiment, the first material frame 1 and the second material frame 2 enclose a rectangular structure, and the first material frame 1 and the second material frame 2 are symmetrically arranged left and right. The forming device for a thermoplastic composite structure member is provided with two connecting plates 3 and two first elastic members 4. The first material frame 1 and the second material frame 2 are connected by the two connecting plates 3, which can make the first material frame 1 and the second material frame 2 stress balanced and improve the rotation accuracy of the first material frame 1 and the second material frame 2. Of course, in some other embodiments, the shapes of the first material frame 1 and the second material frame 2 and the numbers of the connecting plate 3 and the first elastic member 4 are determined according to the actual situation, which will not be elaborated here.
[0034] Optionally, an installation groove 31 is provided on the arc surface of the connecting plate 3, and the first elastic member is arranged in the installation groove 31 to improve the stability of the first elastic member and prevent the first elastic member from separating from the connecting plate 3. Further, both the first elastic member and the second elastic member are tension springs.
[0035] Optionally, the thermoplastic composite structural member forming device further includes a connecting rod 14 and a flange 15. The two ends of the connecting rod 14 are respectively connected to the flange 15 and the connecting plate 3, and the flange 15 is used to connect an industrial robotic arm to achieve automation.
[0036] Optionally, as Figure 3 shown, both the first material frame 1 and the second material frame 2 are convexly provided with connecting ends 101, and the connecting ends 101 are rotatably connected to the connecting plate 3. Specifically, both the first material frame 1 and the second material frame 2 are convexly provided with two connecting ends 101, and the connecting ends 101 are rotatably connected to the connecting plate 3, which can enable the first material frame 1 and the second material frame 2 to rotate smoothly.
[0037] Further, the thermoplastic composite structural member forming device further includes a rotating bushing 10 and a plurality of rolling balls 11. The inner circumference of the rotating bushing 10 is connected to the connecting plate 3, the inner circumference of the connecting end 101 is sleeved on the outer circumference of the rotating bushing 10, and the plurality of rolling balls 11 are arranged at intervals along the circumferential direction of the rotating bushing 10. The rolling balls 11 are exposed on the outer circumference of the rotating bushing 10, and the rolling balls 11 abut against the inner circumference of the connecting end 101. Specifically, each connecting end 101 is provided with a rotating bushing 10 and a plurality of rolling balls 11. The cooperation of the rotating bushing 10 and the plurality of rolling balls 11 can reduce the rotation resistance of the connecting end 101 and facilitate the control of the rotation accuracy of the first material frame 1 and the second material frame 2.
[0038] Optionally, the thermoplastic composite structural member forming device further includes a cover plate 12. The cover plate 12 is connected to the connecting plate 3 and is located outside the rotating bushing 10. Specifically, the cover plate 12 is fixed to the connecting plate 3 by screws 13, which can enclose the rotating bushing 10 to prevent the rolling balls 11 from falling off. In this embodiment, the cover plate 12 is fixed to the connecting plate 3 by four screws 13 to improve the connection stability between the cover plate 12 and the connecting plate 3. Of course, in some other embodiments, the number of screws 13 is determined according to the actual situation and will not be elaborated here.
[0039] Optionally, as Figures 4 to 6As shown, the thermoplastic composite structural component forming device also includes a compression spring 5, which is connected to the connecting plate 3, and the two ends of the compression spring 5 are respectively connected to the first material frame 1 and the second material frame 2, so that the first material frame 1 and the second material frame 2 always have a tendency to be in the initial position. Through the joint action of the compression spring 5 and the first elastic member 4, the first material frame 1 and the second material frame 2 can be in the initial position to prevent the first material frame 1 and the second material frame 2 from sagging due to their own gravity. In this embodiment, the initial position is a horizontal state. When the first material frame 1 and the second material frame 2 are rotating, the compression spring 5 and the first elastic member 4 are both in an excited state tension state. The compression spring 5 and the first elastic member 4 are subjected to tension to ensure that the bending process is progressive and gradual, and the tension state of the composite material is elastically controlled to accurately control the bending process of the composite material. After the bending forming is completed, the first material frame 1 and the second material frame 2 can automatically return to a horizontal state under the action of the compression spring 5 and the first elastic member 4. Of course, in some other embodiments, the state of the initial position is determined according to actual conditions, which will not be repeated here.
[0040] Furthermore, the thermoplastic composite structural component forming device further comprises a positioning shaft 6, the positioning shaft 6 is fixed to the connecting plate 3, and the compression spring 5 is sleeved on the outer periphery of the positioning shaft 6. Such an arrangement can improve the stability of the compression spring 5 and prevent the compression spring 5 from moving.
[0041] Optionally, the thermoplastic composite structural member forming device further includes a first stopper 7 and a second stopper 8, wherein the first stopper 7 is fixed to the first material frame 1, and the second stopper 8 is fixed to the second material frame 2, and both ends of the compression spring 5 can respectively abut against the first stopper 7 and the second stopper 8. Specifically, the first stopper 7 is convexly disposed on the first material frame 1, and the second stopper 8 is convexly disposed on the second material frame 2, which is conducive to the compression spring 5 to better act on the first material frame 1 and the second material frame 2, thereby improving the stability of the compression spring 5.
[0042] Optionally, the thermoplastic composite structural member forming device further comprises a plurality of material drawing components 9, a part of the plurality of material drawing components 9 is arranged in the first material frame 1, and another part is arranged in the second material frame 2, and the plurality of material drawing components 9 are arranged at intervals along the length direction of the first material frame 1 and the second material frame 2. Specifically, the plurality of material drawing components 9 are arranged in two rows, respectively installed in the first material frame 1 and the second material frame 2, and the two rows of material drawing components 9 are arranged in parallel, and are used to connect the two sides of the composite material, so that the composite material is subjected to force balance, the composite material is stretched, and it is beneficial to the heating and deformation processing of the composite material; at the same time, it is suitable for composite materials of different sizes.
[0043] Further, one end of the material pulling component 9 can pass through the first material frame 1 or the second material frame 2 and be slidably connected with the first material frame 1 or the second material frame 2, and the other end of the material pulling component 9 can be against the first material frame 1 or the second material frame 2. In this way, the relative position of the material pulling component 9 and the first material frame 1 or the second material frame 2 can be adjusted, which is suitable for composite materials of different sizes.
[0044] Optionally, the material pulling component 9 includes a bolt 91, a first nut 92, a second nut 93 and a second elastic member 94. One end of the bolt 91 passes through the first material frame 1 or the second material frame 2. Both the first nut 92 and the second nut 93 are threadedly connected to the bolt 91, and the first nut 92 and the second nut 93 are arranged on both sides of the first material frame 1 or the second material frame 2. Two ends of the second elastic member 94 are respectively connected to one end of the bolt 91 and the composite material. Specifically, the first material frame 1 and the second material frame 2 are provided with a plurality of assembly holes. The bolt 91 is fixed by the assembly holes on the first material frame 1 or the second material frame 2 and the first nut 92 and the second nut 93 located on both sides of the first material frame 1 or the second material frame 2. And the distance between the bolt 91 and the first material frame 1 or the second material frame 2 can be determined by the positions of the first nut 92 and the second nut 93, so as to adapt to composite materials of different sizes, and the tension degree of the second elastic member 94 can be adjusted to keep the composite material in a specific stressed and tensioned state; the second elastic member 94 can play a buffering deformation function when the composite material is bent and deformed, so as to realize a smooth pre-bending process and a buffered progressive deformation of the composite material.
[0045] Optionally, a connection hole 911 is arranged at one end of the bolt 91. One end of the second elastic member 94 is hooked on the connection hole 911, which is convenient for replacing the second elastic member 94; a long-round hook 941 is arranged at the other end of the second elastic member 94, which can be hung on the edge of the composite material, and the long-round hook 941 can hang different margins of the composite material to adapt to different tensions and prevent the composite material from being torn.
[0046] In addition, the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. A thermoplastic composite structural part forming device, characterized in that, Including: A first material frame (1), a second material frame (2), a connecting plate (3) and a first elastic member (4). The first material frame (1) and the second material frame (2) are respectively rotatably connected to two ends of the connecting plate (3), so that the first material frame (1) and the second material frame (2) have an initial position and a deformed position. The connecting plate (3) is provided with an arc surface. The first elastic member (4) is wound around the arc surface, and two ends of the first elastic member (4) are respectively connected to the first material frame (1) and the second material frame (2), so that the first material frame (1) and the second material frame (2) always have a tendency to be in the initial position.
2. The thermoplastic composite structural member forming device according to claim 1, wherein, The thermoplastic composite structure forming device further includes a compression spring (5). The compression spring (5) is connected to the connecting plate (3), and two ends of the compression spring (5) are respectively connected to the first material frame (1) and the second material frame (2), so that the first material frame (1) and the second material frame (2) always have a tendency to be in the initial position.
3. The thermoplastic composite structural part forming device according to claim 2, wherein, The thermoplastic composite structure forming device further includes a positioning shaft (6). The positioning shaft (6) is fixed to the connecting plate (3), and the compression spring (5) is sleeved on the positioning shaft (6).
4. A thermoplastic composite structural member forming device according to claim 2, wherein, The thermoplastic composite structure forming device further includes a first stop block (7) and a second stop block (8). The first stop block (7) is fixed to the first material frame (1), and the second stop block (8) is fixed to the second material frame (2). Two ends of the compression spring (5) can respectively abut against the first stop block (7) and the second stop block (8).
5. The thermoplastic composite structural part forming device according to claim 1, characterized in that, A plurality of material pulling components (9) are spacedly arranged on both the first material frame (1) and the second material frame (2) for fixing the composite material.
6. The forming device for a thermoplastic composite structural member according to claim 5, characterized in that, One end of the material pulling component (9) can pass through the first material frame (1) or the second material frame (2) and is slidably connected to the first material frame (1) or the second material frame (2), and the other end of the material pulling component (9) can abut against the first material frame (1) or the second material frame (2).
7. A thermoplastic composite structural member forming device according to claim 6, characterized in that, The material pulling component (9) includes a bolt (91), a first nut (92), a second nut (93) and a second elastic member (94). One end of the bolt (91) passes through the first material frame (1) or the second material frame (2) and is threadedly connected to the first nut (92) and the second nut (93), and the first nut (92) and the second nut (93) are arranged on two sides of the first material frame (1) or the second material frame (2). Two ends of the second elastic member (94) are respectively connected to one end of the bolt (91) and the composite material.
8. A thermoplastic composite structural member forming device according to any one of claims 1-7, characterized in that, Both the first material frame (1) and the second material frame (2) are convexly provided with connecting ends (101). The connecting ends (101) are rotatably connected to the connecting plate (3).
9. The thermoplastic composite structural part forming device according to claim 8, characterized in that, The thermoplastic composite structural member forming device further includes a rotating bushing (10) and a plurality of balls (11). The inner circumference of the rotating bushing (10) is connected to the connecting plate (3). The outer circumference of the rotating bushing (10) is sleeved with the inner circumference of the connecting end (101). The plurality of balls (11) are arranged at intervals along the circumferential direction of the rotating bushing (10) on the rotating bushing (10). The balls (11) are exposed on the outer circumference of the rotating bushing (10), and the balls (11) are in contact with the inner circumference of the connecting end (101).
10. The thermoplastic composite structural member forming device according to claim 9, characterized in that, The thermoplastic composite structural member forming device further includes a cover plate (12). The cover plate (12) is connected to the connecting plate (3), and the cover plate (12) is located outside the rotating bushing (10).