A preform layup aid for composite materials

Abstract

The application discloses a kind of preform lay-up auxiliary tool of composite material, with load-bearing platform, positioning pin, abutment seat, load-bearing platform is equipped with support aluminum plate by first bolt, support aluminum plate upper surface is laid with support cushion layer, support cushion layer upper surface is formed with the support surface for steel plate placement, cut composite material prepreg is placed on steel plate, positioning pin bottom is inserted vertical perforation, the end portion of positioning pin extended to support aluminum plate outside is formed as positioning column section, first positioning hole is opened in steel plate, second positioning hole is opened in composite material prepreg, positioning column section is sequentially penetrated first positioning hole, second positioning hole, to position steel plate and composite material prepreg.The application, positioning column section can penetrate first positioning hole, second positioning hole, to realize the hole alignment and positioning of steel plate and composite material prepreg, avoid the situation that material surface thickness is not uniform in mould pressing hole misalignment.

Description

Technical Field

[0001] This invention relates to the field of prepreg manufacturing technology, and more specifically to an auxiliary tooling for preforming layup of composite materials. Background Technology

[0002] The basic process of prepreg molding is as follows: a certain amount of molding material is placed into a preheated mold, pressure is applied to fill the mold cavity, and the molding material is gradually cured under certain pressure and temperature. The product is then removed from the mold and processed to obtain the final product. In composite molding, there is a process that integrates steel plate and composite material into one piece. This process is used in the automotive, home appliance, and industrial equipment manufacturing industries. The cut composite prepreg is placed on a steel plate for a layup process, and then the pre-laid part is put into a press for molding.

[0003] Before the prepreg is laid up, the steel plate is pre-cut with laser. In order to form the preforms corresponding to the structure, the prepreg also needs to be pre-cut with holes to correspond to the holes on the steel plate. This prevents problems such as whitening of the material surface, increased thickness and uneven surface caused by the holes not being cut.

[0004] A prepreg typically has hundreds of holes. During the layup process, each hole in the prepreg needs to be aligned with the hole in the steel plate; otherwise, the preform will be scrapped. Current technology usually involves manually or mechanically aligning the prepreg with the holes and laying it onto the steel plate. Even after the layup is completed, it is not guaranteed that the holes will be perfectly aligned. Furthermore, during the molding process, the holes are squeezed and deformed, causing slight displacement of the holes and misalignment of the upper and lower holes. The inability to guarantee the alignment of the holes in the preform throughout the process will also lead to substandard quality of the preform after molding. Summary of the Invention

[0005] To address this issue, the present invention provides an auxiliary tooling for preforming layup of composite materials, which effectively solves the problem in the prior art that the inability to guarantee the alignment of holes in the preforms throughout the entire process can lead to substandard quality of the preforms after molding.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: a preforming layup auxiliary tooling for composite materials, comprising: The load-bearing platform has a main support frame installed at its bottom. The load-bearing platform has a hollow structure, and a support aluminum plate is installed on the load-bearing platform by a first bolt. A support pad is laid on the upper surface of the support aluminum plate, and the upper surface of the support pad forms a support surface for placing a steel plate. Cut composite prepreg is placed on the steel plate. The positioning pin has a vertical through hole near the upper surface of the supporting aluminum plate. The bottom of the positioning pin is inserted into the vertical through hole. The end of the positioning pin extending to the outside of the supporting aluminum plate forms a positioning column segment. A first positioning hole is opened on the steel plate, and a second positioning hole is opened on the composite prepreg. The positioning column segment passes through the first positioning hole and the second positioning hole in sequence to position the steel plate and the composite prepreg. The abutment seat has a bottom groove formed in the inner surface of the supporting aluminum plate near the bottom surface. The abutment seat is installed in the bottom groove, and the bottom of the positioning pin is installed on the abutment seat. After the steel plate and the composite prepreg are positioned, the abutment seat can drive the positioning pin to move down, so that the part of the positioning pin that extends beyond the upper surface of the composite prepreg moves down to be flush with the composite prepreg.

[0007] Furthermore, The outer diameter of the positioning pin is the same as the inner diameter of the vertical through hole, the first positioning hole, and the second positioning hole, so that the outer wall of the positioning pin fits perfectly with the inner wall of the vertical through hole, the first positioning hole, and the second positioning hole. The support pad layer has holes corresponding to the vertical perforation positions.

[0008] Furthermore, The vertical through hole and the bottom groove are connected vertically and together form a through hole that penetrates the supporting aluminum plate; The width of the bottom groove is greater than the width of the vertical perforation.

[0009] Furthermore, The main support frame is a hollow structure with an installation base inside. The installation base is installed on the bottom of the load-bearing platform by a second bolt. A drive cylinder is installed on the installation base. The output end of the drive cylinder is connected to a lifting plate. The lifting plate fits into the inner wall of the hollow part of the load-bearing platform and is directly opposite the bottom of the supporting aluminum plate. The bottom of the abutment seat is fixedly connected to an abutment bolt, and the bottom of the abutment bolt is connected to the upper surface of the lifting plate.

[0010] Furthermore, The bottom of the positioning pin abuts against the abutment seat, and the positioning pin and the abutment seat are vertically aligned.

[0011] Furthermore, The abutment seat is provided with a threaded groove, and the bottom end of the positioning pin is provided with a threaded bottom post, which fits into the threaded groove. Wherein, the outer diameter of the threaded bottom post is smaller than the outer diameter of the positioning pin.

[0012] Furthermore, The inner wall of the bottom groove is connected to a first horizontal shaft and a second horizontal shaft from top to bottom. The first horizontal shaft and the second horizontal shaft are set into two sets and are respectively distributed on both sides of the abutment seat. A positioning block is rotatably arranged on the first horizontal shaft and a rotating locking block is rotatably arranged on the second horizontal shaft. The positioning block is provided with a first connecting shaft at its end, and the rotating block is provided with a second connecting shaft at its upper end. The positioning block and the rotating block are movably connected by a movable shaft block. The positioning block is movably connected to the movable shaft block through the first connecting shaft, and the rotating block is movably connected to the movable shaft block through the second connecting shaft. The rotating block and the positioning block are parallel to each other.

[0013] Furthermore, The outer periphery of the abutment seat is provided with an annular groove, and the end of the rotating block extends into the annular groove. The width of the rotating block gradually decreases near the end, and the width of its end is smaller than the width of the annular groove. The positioning block is provided with a positioning clip at its end, and the positioning pin is provided with a slot on its bottom outer peripheral wall, and the positioning clip is engaged in the slot.

[0014] Furthermore, The outer diameter of the positioning pin gradually decreases near the top.

[0015] Furthermore, The surface of the supporting aluminum plate is provided with an oxide layer, and a window is opened on the supporting aluminum plate, which faces the edge area of ​​the steel plate. The bottom of the main support frame is fitted with casters via a third bolt.

[0016] Compared with the prior art, the present invention has the following advantages: In this invention, a supporting aluminum plate is installed on a load-bearing platform. A vertical through hole is opened in the supporting aluminum plate near the upper surface. The bottom of the positioning pin is inserted into the vertical through hole. The end of the positioning pin extending to the outside of the supporting aluminum plate forms a positioning column segment. The positioning column segment can pass through the first positioning hole and the second positioning hole to achieve the alignment and positioning of the holes of the steel plate and the prepreg of the composite material, so as to avoid the situation that the hole positions are misaligned during molding, resulting in uneven material thickness. In addition, an abutment seat is provided inside the supporting aluminum plate, and the bottom of the positioning pin is installed on the abutment seat. After the steel plate and the composite prepreg are positioned, the abutment seat can drive the positioning pin to move down, so that the part of the positioning pin that exceeds the upper surface of the composite prepreg moves down to be flush with the surface of the composite prepreg. On the one hand, the hole position is completely fixed, and on the other hand, the protruding surface of the positioning pin is prevented from hindering the normal progress of the molding process, thus ensuring the molding quality. Attached Figure Description

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an auxiliary tooling for preforming layup of composite materials provided in an embodiment of the present invention; Figure 2 for Figure 1 A magnified structural diagram of A in the middle; Figure 3 A schematic diagram of the structure of a preforming layup auxiliary tooling for composite materials provided in this embodiment of the invention, using the second embodiment; Figure 4 for Figure 3 A magnified structural diagram of B in the diagram; Figure 5 A schematic diagram of the structure of a preforming layup auxiliary tooling for composite materials provided in this embodiment of the invention, using the third embodiment; Figure 6 for Figure 5 A schematic diagram of the structure in which the center positioning pin moves downward following the abutment seat; Figure 7 for Figure 6 A schematic diagram of the structure of unpadded steel plate and composite prepreg in the initial state; Figure 8 for Figure 5 A magnified structural diagram of C; Figure 9 for Figure 6 A magnified structural diagram of D in the diagram; Figure 10 This is a top view of the load-bearing platform, supporting aluminum plate, and steel plate in this invention.

[0019] The labels in the diagram represent the following: 1-Load-bearing platform; 2-Positioning pin; 3-Abutment seat; 4-Main support frame; 5-First bolt; 6-Supporting aluminum plate; 7-Supporting pad; 8-Steel plate; 9-Supporting surface; 10-Composite prepreg; 11-Vertical perforation; 12-Positioning column segment; 13-First positioning hole; 14-Second positioning hole; 15-Bottom groove; 16-Mounting base; 17-Second bolt; 18-Drive cylinder; 19-Lifting plate; 20-Abutment bolt; 21-Threaded groove; 22-Threaded bottom column; 23-First horizontal shaft; 24-Second horizontal shaft; 25-Positioning block; 26-Rotating block; 27-First connecting shaft; 28-Second connecting shaft; 29-Movable shaft block; 30-Annular groove; 31-Positioning strip; 32-Slot; 33-Window; 34-Universal wheel. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, the present invention provides an auxiliary tooling for preforming and laying up composite materials, which mainly includes a load-bearing platform 1, a positioning pin 2, and an abutment seat 3.

[0022] A pre-cut composite material prepreg 10 is placed on a steel plate 8. The steel plate 8 and the composite material prepreg 10 are laid in layers to form a preform. A first positioning hole 13 is provided on the steel plate 8, and a second positioning hole 14 is provided on the prepreg 10. The first positioning hole 13 and the second positioning hole 14 are corresponding to each other.

[0023] In this invention, a supporting aluminum plate 6 is installed on the support platform 1. The supporting aluminum plate 6 is used to support the steel plate 8. A vertical through hole 11 is opened in the supporting aluminum plate 6 near the upper surface. The bottom of the positioning pin 2 is inserted into the vertical through hole 11. The end of the positioning pin 2 extending to the outside of the supporting aluminum plate 6 forms a positioning column segment 12. The positioning column segment 12 can pass through the first positioning hole 13 and the second positioning hole 14 to realize the alignment and positioning of the holes of the steel plate 8 and the composite prepreg 10, so as to avoid the situation that the hole misalignment during molding leads to uneven material thickness.

[0024] In addition, an abutment seat 3 is provided inside the supporting aluminum plate 6, and the bottom of the positioning pin 2 is installed on the abutment seat 3. After the steel plate 8 and the composite prepreg 10 are positioned, the abutment seat 3 can drive the positioning pin 2 to move down, so that the part of the positioning pin 2 that exceeds the upper surface of the composite prepreg 10 moves down to be flush with the surface of the composite prepreg 10. On the one hand, the hole position is completely fixed, and on the other hand, the protruding surface of the positioning pin 2 is prevented from hindering the normal progress of the molding process, thus ensuring the molding quality.

[0025] A main support frame 4 is installed at the bottom of the load-bearing platform 1. The main support frame 4 and the load-bearing platform 1 are fixedly connected by welding. The main support frame 4 is used to support the load-bearing platform 1 and keep it at a certain height.

[0026] The load-bearing platform 1 has a hollow structure, and a supporting aluminum plate 6 is installed on the load-bearing platform 1 by means of the first bolt 5. The supporting aluminum plate 6 is installed directly above the hollow part and covers the hollow part of the load-bearing platform 1. The supporting aluminum plate 6 is installed by means of the first bolt 5, which makes the supporting aluminum plate 6 itself a detachable structure. Depending on the different prefabricated parts, the hole position and number of holes on the supporting aluminum plate 6 are different. Therefore, when laying the corresponding prefabricated parts, the appropriate supporting aluminum plate 6 is selected and installed on the load-bearing platform 1 to assist the prefabricated parts in laying.

[0027] To prevent the steel plate 8 from being directly placed on the supporting aluminum plate 6 and causing scratches or abrasions, a supporting pad 7 is laid on the upper surface of the supporting aluminum plate 6. The supporting pad 7 is usually a layer of felt. The upper surface of the supporting pad 7 forms a supporting surface 9 for the steel plate 8 to be placed. The surface of the supporting aluminum plate 6 is anodized to form an oxide layer, which can improve the corrosion resistance and appearance quality of the supporting aluminum plate 6.

[0028] In addition, the support pad 7 has a hole at the position corresponding to the vertical through hole 11. That is to say, the vertical through hole 11, the hole on the support pad 7, the first positioning hole 13 and the second positioning hole 14 are all corresponding vertically, allowing the positioning pin 2 to pass through and achieve hole alignment.

[0029] A vertical through hole 11 is provided in the support aluminum plate 6 near the upper surface. The bottom of the positioning pin 2 is inserted into the vertical through hole 11. The end of the positioning pin 2 extending to the outside of the support aluminum plate 6 forms a positioning column segment 12. The positioning column segment 12 passes through the first positioning hole 13 and the second positioning hole 14 in sequence to position the steel plate 8 and the composite prepreg 10.

[0030] The outer diameter of the positioning pin 2 is the same as the inner diameter of the vertical through hole 11, the first positioning hole 13, and the second positioning hole 14, or the outer diameter of the positioning pin 2 is slightly smaller than the inner diameter of the vertical through hole 11, the first positioning hole 13, and the second positioning hole 14, so that the outer wall of the positioning pin 2 fits perfectly with the inner wall of the vertical through hole 11, the first positioning hole 13, and the second positioning hole 14. The opening on the support pad 7 is the same, just enough for the positioning pin 2 to pass through.

[0031] An abutment seat 3 is also provided inside the supporting aluminum plate 6. A bottom groove 15 is provided inside the supporting aluminum plate 6 near the lower surface. The abutment seat 3 is installed in the bottom groove 15, and the bottom of the positioning pin 2 is installed on the abutment seat 3.

[0032] After the steel plate 8 and the composite prepreg 10 are positioned, the abutment seat 3 can drive the positioning pin 2 to move down, so that the part of the positioning pin segment 12 that extends beyond the upper surface of the composite prepreg 10 moves down to be flush with the composite prepreg 10.

[0033] The vertical through hole 11 and the bottom groove 15 are connected vertically and together form a through hole that passes through the supporting aluminum plate 6. In order to allow the abutment seat 3 to be installed and raised, a certain space needs to be formed in the bottom groove 15. The width of the bottom groove 15 is greater than the width of the vertical through hole 11.

[0034] In order to achieve the following: the abutment seat 3 can drive the positioning pin 2 to move down, so that the part of the positioning pin segment 12 that exceeds the upper surface of the composite prepreg 10 moves down to be flush with the composite prepreg 10, the present invention provides the following embodiments.

[0035] First embodiment: like Figure 1 and Figure 2 As shown, the main support frame 4 is a hollow structure, and the area of ​​its hollow part is larger than the area of ​​the hollow part on the load-bearing platform 1. An installation base 16 is provided inside the hollow structure of the main support frame 4. The installation base 16 is installed at the bottom of the load-bearing platform 1 away from the hollow part by means of the second bolt 17.

[0036] A drive cylinder 18 is installed on the mounting base 16. The main structure of the drive cylinder 18 is installed below the mounting base 16, and its output shaft extends through the mounting base 16 to above the mounting base 16. The output end of the drive cylinder 18 is connected to a lifting plate 19. The lifting plate 19 is located above the mounting base 16. The lifting plate 19 fits into the inner wall of the hollow part of the support platform 1 and moves up and down in the vertical direction. The lifting plate 19 is directly opposite the bottom of the supporting aluminum plate 6.

[0037] The bottom of the abutment seat 3 is fixedly connected to the abutment bolt 20. The bottom of the abutment bolt 20 is connected to the upper end face of the lifting plate 19. When the driving cylinder 18 drives the lifting plate 19 to rise and fall, it drives the abutment bolt 20 and the abutment seat 3 on it to move up and down, thereby driving the positioning pin 2 to move up and down.

[0038] The bottom of the positioning pin 2 directly abuts against the abutment seat 3. The bottom of the positioning pin 2 only contacts the upper surface of the abutment seat 3. The positioning pin 2 and the abutment seat 3 are vertically aligned.

[0039] During the installation of the positioning pin 2, the positioning pin 2 is directly inserted into the bottom of the vertical through hole 11, which is convenient and quick.

[0040] After installation, the top part of the positioning column segment 12 is located above the composite prepreg 10. The cylinder 18 needs to drive the abutment bolt 20 to move down, and the positioning pin 2 moves down accordingly to prevent the column segment of the positioning column segment 12 from protruding from the surface of the composite prepreg 10 and obstructing the press from pressing the composite prepreg 10.

[0041] Second embodiment: The main support frame 4 is a hollow structure, and the area of ​​its hollow part is larger than the area of ​​the hollow part on the load-bearing platform 1. The hollow structure of the main support frame 4 is equipped with a mounting base 16, which is installed at the bottom of the load-bearing platform 1 away from the hollow part by means of a second bolt 17.

[0042] A drive cylinder 18 is installed on the mounting base 16. The main structure of the drive cylinder 18 is installed below the mounting base 16, and its output shaft extends through the mounting base 16 to above the mounting base 16. The output end of the drive cylinder 18 is connected to a lifting plate 19. The lifting plate 19 is located above the mounting base 16. The lifting plate 19 fits into the inner wall of the hollow part of the support platform 1 and moves up and down in the vertical direction. The lifting plate 19 is directly opposite the bottom of the supporting aluminum plate 6.

[0043] like Figure 3 and Figure 4 As shown, the bottom of the abutment seat 3 is fixedly connected to the abutment bolt 20. The bottom of the abutment bolt 20 is connected to the upper end face of the lifting plate 19. When the driving cylinder 18 drives the lifting plate 19 to rise and fall, it drives the abutment bolt 20 and the abutment seat 3 on it to move up and down, thereby driving the positioning pin 2 to move up and down.

[0044] In the first embodiment, when the abutment seat 3 moves down, the positioning pin 2 moves down with the abutment seat 3 under the action of gravity. However, in actual application, the positioning pin 2 may not move down in time under the action of static friction of the hole wall, resulting in the upper end of part of the positioning pin segment 12 still being above the composite prepreg 10. To avoid this problem, the present invention makes the following design in the second embodiment: a threaded groove 21 is provided on the abutment seat 3, and a threaded bottom post 22 is provided at the bottom end of the positioning pin 2. The threaded bottom post 22 fits with the threaded groove 21, wherein the outer diameter of the threaded bottom post 22 is smaller than the outer diameter of the positioning pin 2.

[0045] During the installation of the positioning pin 2, the positioning pin 2 is first inserted into the vertical through hole 11 until the threaded bottom pin 22 contacts the abutment seat 3. The positioning pin 2 is then rotated in a spiral motion so that the threaded bottom pin 22 is gradually threaded into the threaded groove 21.

[0046] In the threaded installation configuration, the top part of the positioning column segment 12 is positioned above the composite prepreg 10 in the initial state. The drive cylinder 18 drives the abutment bolt 20 to move down, which directly drives the positioning pin 2 to move down, thus preventing the column segment of the positioning column segment 12 from protruding from the surface of the composite prepreg 10 and obstructing the press from pressing down on the composite prepreg 10.

[0047] Third embodiment: The main support frame 4 is a hollow structure, and the area of ​​its hollow part is larger than the area of ​​the hollow part on the load-bearing platform 1. The hollow structure of the main support frame 4 is equipped with a mounting base 16, which is installed at the bottom of the load-bearing platform 1 away from the hollow part by means of a second bolt 17.

[0048] A drive cylinder 18 is installed on the mounting base 16. The main structure of the drive cylinder 18 is installed below the mounting base 16, and its output shaft extends through the mounting base 16 to above the mounting base 16. The output end of the drive cylinder 18 is connected to a lifting plate 19. The lifting plate 19 is located above the mounting base 16. The lifting plate 19 fits into the inner wall of the hollow part of the support platform 1 and moves up and down in the vertical direction. The lifting plate 19 is directly opposite the bottom of the supporting aluminum plate 6.

[0049] The bottom of the abutment seat 3 is fixedly connected to the abutment bolt 20. The bottom of the abutment bolt 20 is connected to the upper end face of the lifting plate 19. When the driving cylinder 18 drives the lifting plate 19 to rise and fall, it drives the abutment bolt 20 and the abutment seat 3 on it to move up and down, thereby driving the positioning pin 2 to move up and down.

[0050] In the second embodiment, the positioning pins 2 need to be threaded into the holes one by one. Since the number of holes in the prefabricated parts is usually in the hundreds, the speed of threading the positioning pins 2 one by one is extremely low. Direct insertion into the holes also cannot guarantee that the positioning pins 2 can retract into the holes. To solve the above problems, the present invention makes the following design in the third embodiment, as follows: Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the inner wall of the bottom groove 15 is connected to a first horizontal shaft 23 and a second horizontal shaft 24 from top to bottom. The first horizontal shaft 23 and the second horizontal shaft 24 are set as two sets and are distributed on both sides of the abutment seat 3 respectively. A positioning block 25 is rotatably arranged on the first horizontal shaft 23 and a rotating locking block 26 is rotatably arranged on the second horizontal shaft 24.

[0051] The positioning block 25 is provided with a first connecting shaft 27 at its end, and the rotating block 26 is provided with a second connecting shaft 28 at its upper end. The positioning block 25 and the rotating block 26 are movably connected by a movable shaft block 29. The positioning block 25 is movably connected to the movable shaft block 29 through the first connecting shaft 27, and the rotating block 26 is movably connected to the movable shaft block 29 through the second connecting shaft 28. The rotating block 26 and the positioning block 25 are parallel to each other.

[0052] In the above embodiments, the rotating block 26 and the positioning block 25 are two parallel structures that can rotate, and the rotating block 26 and the positioning block 25 can maintain a parallel state during rotation.

[0053] An annular groove 30 is provided on the outer periphery of the abutment seat 3. The end of the rotating block 26 extends into the annular groove 30. The width of the rotating block 26 gradually decreases near the end, and the width of its end is less than the width of the annular groove 30. The end of the positioning block 25 is provided with a positioning strip 31. The bottom outer peripheral wall of the positioning pin 2 is provided with a slot 32, and the positioning strip 31 is engaged in the slot 32.

[0054] In the initial state, such as Figure 8 As shown, both the rotating block 26 and the positioning block 25 are tilted upwards. Correspondingly, the positioning strip 31 is also away from the vertical line of the vertical through hole 11 (so that the positioning pin 2 can directly pass through the vertical through hole 11 and abut against the top of the abutment seat 3). During the installation process, the positioning pin 2 is directly inserted into the vertical through hole 11, and the bottom of the positioning pin 2 abuts against the abutment seat 3.

[0055] In the initial state, the top part of the positioning pin segment 12 is located above the composite prepreg 10. The drive cylinder 18 drives the abutment pin 20 to move downward. During the downward movement, the abutment seat 3 drives the rotating locking block 26 to rotate downward, thereby driving the positioning block 25 to rotate downward through the movable shaft block 29. The downward rotation of the positioning block 25 drives the positioning locking strip 31 to gradually engage with the slot 32 on the bottom outer wall of the positioning pin 2, and the positioning pin 2 moves downward through the positioning locking strip 31. Figure 9 As shown, the positioning column 12 gradually retracts into the vertical through hole 11 to prevent the column protruding from the surface of the composite prepreg 10 from obstructing the press from pressing the composite prepreg 10.

[0056] To accelerate the layup process of steel plate 8 and composite prepreg 10, the present invention is designed such that the outer diameter of the positioning pin 2 gradually decreases near the top. When steel plate 8 is laid on the supporting aluminum plate 6 with the positioning pin 2 aligned with the positioning pin 2, it can first be aligned with the part with the smaller radius at the top of the positioning pin segment 12. After passing through this part, its own orientation is gradually corrected by the positioning pin 2.

[0057] For the rapid placement and removal of steel plate 8 or prefabricated components made of steel plate 8, such as Figure 10 As shown, a window 33 is provided on the supporting aluminum plate 6. The window 33 faces the edge area of ​​the steel plate 8. Workers can pass their hands through the window 33 area and directly take the prefabricated part through the end of the prefabricated part.

[0058] The invention is movable as a whole. The main support frame 4 can be regarded as a movable trolley. The bottom of the main support frame 4 is equipped with casters 34 by the third bolt. The casters 34 drive the overall tooling to move to the corresponding lay-up and molding stations.

[0059] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A preforming layup auxiliary tooling for composite materials, characterized in that, have: The load-bearing platform (1) has a main support frame (4) installed at its bottom. The load-bearing platform (1) is a hollow structure, and a support aluminum plate (6) is installed on the load-bearing platform (1) by a first bolt (5). A support pad (7) is laid on the upper surface of the support aluminum plate (6). A support surface (9) for placing a steel plate (8) is formed on the upper surface of the support pad (7). A pre-cut composite material prepreg (10) is placed on the steel plate (8). The positioning pin (2) has a vertical through hole (11) near the upper surface of the supporting aluminum plate (6). The bottom of the positioning pin (2) is inserted into the vertical through hole (11). The end of the positioning pin (2) extending to the outside of the supporting aluminum plate (6) forms a positioning column segment (12). The steel plate (8) has a first positioning hole (13). The composite prepreg (10) has a second positioning hole (14). The positioning column segment (12) passes through the first positioning hole (13) and the second positioning hole (14) in sequence to position the steel plate (8) and the composite prepreg (10). The abutment seat (3) has a bottom groove (15) near the lower surface of the supporting aluminum plate (6), the abutment seat (3) is installed in the bottom groove (15), and the bottom of the positioning pin (2) is installed on the abutment seat (3); After the steel plate (8) and the composite prepreg (10) are positioned, the abutment seat (3) can drive the positioning pin (2) to move down so that the part of the positioning pin segment (12) that extends beyond the upper surface of the composite prepreg (10) moves down to be flush with the composite prepreg (10); The main support frame (4) is a hollow structure with an installation base (16) inside. The installation base (16) is installed at the bottom of the load-bearing platform (1) by a second bolt (17). A drive cylinder (18) is installed on the installation base (16). The output end of the drive cylinder (18) is connected to a lifting plate (19). The lifting plate (19) fits into the inner wall of the hollow part of the load-bearing platform (1). The lifting plate (19) is directly opposite the bottom of the support aluminum plate (6). The bottom of the abutment seat (3) is fixedly connected to an abutment bolt (20), and the bottom of the abutment bolt (20) is connected to the upper surface of the lifting plate (19); The inner wall of the bottom groove (15) is connected from top to bottom to a first horizontal shaft (23) and a second horizontal shaft (24). The first horizontal shaft (23) and the second horizontal shaft (24) are set as two sets and are respectively distributed on both sides of the abutment seat (3). A positioning block (25) is rotatably arranged on the first horizontal shaft (23), and a rotating block (26) is rotatably arranged on the second horizontal shaft (24). The positioning block (25) is provided with a first connecting shaft (27) at its end, and the rotating block (26) is provided with a second connecting shaft (28) at its upper end. The positioning block (25) and the rotating block (26) are movably connected by a movable shaft block (29). The positioning block (25) is movably connected to the movable shaft block (29) through the first connecting shaft (27), and the rotating block (26) is movably connected to the movable shaft block (29) through the second connecting shaft (28). The rotating block (26) and the positioning block (25) are parallel to each other.

2. The preforming layup auxiliary tooling for composite materials according to claim 1, characterized in that, The outer diameter of the positioning pin (2) is consistent with the inner diameter of the vertical through hole (11), the first positioning hole (13), and the second positioning hole (14), so that the outer wall of the positioning pin (2) fits perfectly with the inner wall of the vertical through hole (11), the first positioning hole (13), and the second positioning hole (14); The support pad (7) has an opening at the position corresponding to the vertical perforation (11).

3. The preforming layup auxiliary tooling for composite materials according to claim 1, characterized in that, The vertical through hole (11) and the bottom groove (15) are connected vertically and combine to form a through hole that penetrates the supporting aluminum plate (6); The width of the bottom groove (15) is greater than the width of the vertical through hole (11).

4. The preforming layup auxiliary tooling for composite materials according to claim 1, characterized in that, The bottom of the positioning pin (2) abuts against the abutment seat (3), and the positioning pin (2) and the abutment seat (3) are vertically aligned.

5. The preforming layup auxiliary tooling for composite materials according to claim 1, characterized in that, The abutment seat (3) is provided with a threaded groove (21), and the bottom end of the positioning pin (2) is provided with a threaded bottom post (22), which fits into the threaded groove (21); The outer diameter of the threaded bottom post (22) is smaller than the outer diameter of the positioning pin (2).

6. The preforming layup auxiliary tooling for composite materials according to claim 1, characterized in that, The abutment seat (3) has an annular groove (30) on its outer periphery. The end of the rotating block (26) extends into the annular groove (30). The width of the rotating block (26) gradually decreases near its end, and the width of its end is smaller than the width of the annular groove (30). The positioning block (25) has a positioning strip (31) at its end, and the positioning pin (2) has a slot (32) on its bottom outer peripheral wall, and the positioning strip (31) is engaged in the slot (32).

7. The preforming layup auxiliary tooling for composite materials according to claim 1 or 6, characterized in that, The outer diameter of the positioning pin (2) gradually decreases near the top.

8. The preforming layup auxiliary tooling for composite materials according to claim 1, characterized in that, The surface of the supporting aluminum plate (6) is provided with an oxide layer, and a window (33) is provided on the supporting aluminum plate (6), which faces the edge area of ​​the steel plate (8); The bottom of the main support frame (4) is fitted with casters (34) by a third bolt.

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