Production equipment for stepped composite splines

Abstract

The utility model discloses production equipment for a stepped composite material spline, which comprises a dismounting assembly, a forming die, a jack and a spline body, the spline body is arranged in the forming die, the forming die is arranged at the upper end of the dismounting assembly, the jack is arranged in the dismounting assembly, and the dismounting assembly comprises a cuboid demolding frame. Fixing blocks are symmetrically fixed to the left end and the right end of the demolding frame correspondingly, the fixing blocks are rotationally connected with L-shaped pressing frames correspondingly, a connecting beam is fixed between the two pressing frames on the same side correspondingly, and a bearing plate is fixed to the upper end of the demolding frame; the spline body, the shaft and the protruding strips are integrally formed through the forming die, it is guaranteed that internal materials of the spline body are free of faults, and the overall strength is high. The composite material in the forming mold is heated and cured to form the spline body, so that the spline body does not need to be machined, and the manufacturing efficiency of the spline body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spline production, in particular to production equipment for stepped composite material splines. Background Art

[0002] When making spline step composite products, it is usually necessary to first make a rod composite product and then perform secondary machining to make the spline step composite product. The rod composite product is generally made by hand paste molding, pultrusion molding, compression molding and other processes.

[0003] However, the existing production method will encounter the following problems during the production process:

[0004] 1. The method of hand-pasting the rod body + secondary machining is adopted. Processing the rod body into a spline is difficult, and the reinforcing material at the processing part is fractured, resulting in a reduction in the strength of the spline structure.

[0005] 2. Use pultrusion rod + secondary machining. Pultrusion products have high longitudinal strength and low transverse strength, and are prone to distortion, which affects the accuracy and life of the products. Due to the construction characteristics of composite materials, the thickness of products formed by the pultrusion process is limited, which cannot meet the production of larger spline step products.

[0006] 3. Use compression molding rod + secondary machining. Limited by the type of compression molding reinforcement material (sheets, etc.), the strength of the product is low and it is not suitable for products with medium or higher strength requirements; the equipment and mold investment costs required for the compression molding process are high and it is not suitable for the production of small and medium batches of products. Utility Model Content

[0007] In view of the above problems, the utility model provides a production equipment for stepped composite material splines; it has the advantages of avoiding machining of products and avoiding fracture of internal reinforcing materials, realizing one-piece net molding, improving the surface and pressure-bearing strength of products, and improving the production efficiency of products.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a production device for a stepped composite material spline, comprising a disassembly assembly, a forming mold, a jack and a spline body, wherein the spline body is located inside the forming mold, the forming mold is located at the upper end of the disassembly assembly, and a jack is placed inside the disassembly assembly;

[0009] The disassembly assembly comprises a rectangular demoulding frame, the left and right ends of the demoulding frame are symmetrically fixed with fixed blocks, the fixed blocks are rotatably connected with L-shaped clamping frames, a connecting beam is fixed between the two clamping frames on the same side, and a receiving plate is fixed at the upper end of the demoulding frame;

[0010] The forming die includes two stepped dies arranged symmetrically. Grooves are respectively provided on the opposite sides of the stepped dies. A plurality of arc-shaped strips are arranged along the circumference in the grooves. Positioning pins arranged symmetrically are respectively fixed at the left end and the right end of the stepped die. The left end and the right end of the stepped die are respectively connected with sealing members through the positioning pins and are fixedly connected with the stepped die through bolts.

[0011] Preferably, positioning pins are fixed on the opposite sides of the two stepped dies. The two stepped dies are connected to each other through the positioning pins and are fixedly connected through bolts. The central part of the forming die is square. Two pressing corners are provided on the left end face and the right end face of the stepped die.

[0012] Preferably, a semi-circular groove is formed on the side of the sealing member close to the stepped die.

[0013] Preferably, a square positioning convex edge is provided at the upper end of the receiving plate. An installation cylinder is provided at the lower end of the receiving plate. A flanging is provided inward at the lower end of the installation cylinder. A protective pad is placed in the installation cylinder. A counterbore is provided at the upper end of the protective pad.

[0014] Preferably, a shaft is provided at one end of the spline body. A plurality of convex strips are arranged along the circumference on the outer wall of the spline body. The diameter of the shaft is smaller than the diameter of the spline body.

[0015] Preferably, one end of the pressing frame is rotatably connected to the fixed block of the demolding frame. The other end of the pressing frame corresponds to the pressing corner of the stepped die.

[0016] Preferably, the demolding frame and the pressing frame are welded by square tubes. A placement plate is welded at the lower end of the demolding frame. The jack is placed on the placement plate.

[0017] Preferably, the depth of the counterbore of the protective pad is greater than the thickness of the shafts at both ends of the spline body.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. The spline body, the shaft and the convex strips are integrally formed through the forming die, ensuring that there is no fault in the internal material of the spline body and the overall strength is high. The composite material in the forming die is heated and cured to form the spline body, so that the spline body does not need to be machined, improving the production efficiency of the spline body. According to the thickness of the spline body, combined with the construction process characteristics of the composite material, the forming die of the composite material can be manufactured in advance to assist in forming, meeting the need for thickening the spline body and improving the production efficiency at the same time.

[0020] 2. By adding colorant in the spline body in advance, products of corresponding colors can be directly formed, reducing the spraying process. The stepped mold is clamped by positioning pins and locked by bolts, which can ensure the accuracy of the spline body of the composite material. By setting arc-shaped strips and grooves on the stepped mold, the spline shape in the middle and the stepped shape at the end of the spline body are ensured. Through the step-by-step disassembly steps of the forming mold, an integral net-shaped forming structure of the middle spline shape and the end stepped shape can be obtained. By forming the spline body through the forming mold, the surface quality of the spline body can be improved, avoiding trimming and saving manufacturing man-hours. By welding square tubes to form a disassembly component, the cost is low, the operation is simple and convenient, the demolding difficulty is low and the efficiency is high. By arranging at the lower end of the disassembly component and setting a protective pad in the placement cylinder, damage to the end face of the product is avoided. Description of the Drawings

[0021] Figure 1 Schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Exploded view of the forming mold of the present invention;

[0023] Figure 3 Exploded view of the stepped mold of the present invention;

[0024] Figure 4 Schematic cross-sectional view of the receiving plate of the present invention;

[0025] Figure 5 Schematic diagram of the spline body of the present invention;

[0026] Figure 6 Schematic partial cross-sectional view of the whole of the present invention.

[0027] Explanation of the labels in the figure: 1. Disassembly component; 2. Forming mold; 3. Jack; 4. Spline body; 11. Demolding frame; 12. Fixed block; 13. Pressing frame; 14. Connecting beam; 15. Receiving plate; 16. Protective pad; 21. Stepped mold; 22. Plugging member; 23. Arc-shaped strip; 24. Groove; 25. Positioning pin; 41. Shaft; 42. Rib; 151. Positioning convex edge; 152. Placement cylinder. Detailed Description of the Preferred Embodiments

[0028] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] Please refer to Figure 1 and Figure 6, A production device for a stepped composite spline, including a disassembly component 1, a forming die 2, a jack 3, and a spline body 4. The spline body 4 is located inside the forming die 2. The forming die 2 is used to hold the composite material and cure it by existing technical means, so that the composite material inside the forming die 2 cures and then forms the spline body 4. When making a relatively thick spline body 4, small pre-made composite forming blocks can be embedded inside the forming die 2 respectively to improve efficiency and reduce the operation difficulty. The forming die 2 is located at the upper end of the disassembly component 1. A jack 3 is placed inside the disassembly component 1. The demoulding frame 11 and the pressing frame 13 are welded by square tubes. A placing plate is welded at the lower end of the demoulding frame 11. The jack 3 is placed on the placing plate. The disassembly component 1 and the jack 3 cooperate to demould the spline body 4 in the forming die 2. The jack 3 rises to lift the spline body 4 and push the spline body 4 out of the forming die 2 to realize demoulding of the spline body 4. The jack 3 can be replaced with other existing lifting devices, such as a hydraulic rod, etc., to demould the spline body 4. The demoulding frame 11 and the pressing frame 13 are welded by square tubes, which reduces the cost of the disassembly component 1, makes the operation simple and convenient, and has low demoulding difficulty and high efficiency.

[0030] Please refer to Figure 1 , Figure 4 and Figure 6 , The disassembly component 1 includes a cuboid demoulding frame 11. Fixed blocks 12 are symmetrically fixed at the left and right ends of the demoulding frame 11 respectively. L-shaped pressing frames 13 are respectively rotatably connected to the fixed blocks 12. One end of the pressing frame 13 is rotatably connected to the fixed block 12 of the demoulding frame 11, and the other end of the pressing frame 13 corresponds to the pressing angle of the stepped die 21. One end of the connecting beam 14 is rotatably connected to the fixed block 12. When demoulding the spline body 4, place the forming die 2 on the upper end of the demoulding frame 11, rotate the pressing frame 13 to rotate the other end of the pressing frame 13 to the pressing angle of the forming die 2. When the jack 3 jacks up the spline body 4, the pressing frame 13 hinders the forming die 2 from rising, thereby realizing demoulding of the forming die 2. After the demoulding of the spline body 4 is completed, just rotate the pressing frame 13 again to move the pressing frame 13 away from the clamping angle of the forming die 2 and remove the forming die 2 to realize rapid demoulding of the spline body 4. Connecting beams 14 are respectively fixed between the two pressing frames 13 on the same side. The connecting beam 14 is used to connect the two pressing frames 13 on the same side, so that the two pressing frames 13 on the same side move and rotate synchronously, making it more convenient for the pressing frame 13 to press or remove the forming die 2.

[0031] Please refer to Figure 1 , Figure 4 and Figure 6, a receiving plate 15 is fixed to the upper end of the demolding frame 11. A square positioning flange 151 is provided on the upper end of the receiving plate 15. The positioning flange 151 limits the forming mold 2, facilitating the rapid positioning of the forming mold 2, and thus more quickly demolding the spline body 4 from the forming mold 2. A placement cylinder 152 is provided at the lower end of the receiving plate 15. The lower end of the placement cylinder 152 is inwardly provided with a flanging. A protective pad 16 is placed in the placement cylinder 152. By providing the placement cylinder 152 at the lower end of the disassembly component 1 and arranging the protective pad 16 in the placement cylinder 152, damage to the end face of the product is avoided. A counterbore is provided at the upper end of the protective pad 16. One end of the spline body 4 is provided with a shaft 41. A plurality of convex strips 42 are provided on the outer wall of the spline body 4 along its circumference. The diameter of the shaft 41 is smaller than the diameter of the spline body 4. The depth of the counterbore of the protective pad 16 is greater than the thickness of the shafts 41 at both ends of the spline body 4. When demolding the spline body 4, a corresponding margin is reserved between the spline body 4 and the protective pad 16 to ensure that the spline body 4 will not be damaged during demolding.

[0032] Please refer to Figure 2 , Figure 3 and Figure 5 , the forming mold 2 includes two stepped molds 21 arranged symmetrically. Grooves 24 are respectively provided on the opposite sides of the stepped molds 21. A plurality of arc-shaped strips 23 are provided along the circumference in the grooves 24. By arranging the arc-shaped strips 23 and the grooves 24 on the stepped molds 21, the structure of the spline type in the middle and the stepped type at the ends of the spline body 4 is ensured. Through the step-by-step disassembly steps of the forming mold 2, an integrally formed structure with a spline type in the middle and a stepped type at the ends can be obtained. The spline body 4 is formed by the forming mold 2, which can improve the surface quality of the spline body 4, avoid trimming, and save manufacturing man-hours. Positioning pins 25 are respectively fixed to the left end and the right end of the stepped mold 21. The left end and the right end of the stepped mold 21 are respectively connected with a plugging member 22 through the positioning pins 25 and are fixedly connected to the stepped mold 21 by bolts. A semi-circular groove is provided on the side of the plugging member 22 close to the stepped mold 21. Positioning pins 25 are fixed to the opposite sides of the two stepped molds 21. The two stepped molds 21 are connected to each other through the positioning pins 25 and are fixedly connected by bolts. The stepped mold 21 adopts the cooperation of positioning pins 25 and is locked by bolts, which can ensure the accuracy of the composite spline body 4, improve the surface quality of the product, avoid trimming, and save manufacturing man-hours. At the same time, a coloring agent is added in advance to the composite material of the spline body 4, and products of corresponding colors can be directly formed, reducing the spraying process. The central part of the forming mold 2 is square. Two pressing angles are provided on the left end face and the right end face of the stepped mold 21. The pressing angles cooperate with the pressing frame 13 to prevent the forming mold 2 from moving upward when demolding the spline body 4.

[0033] When the utility model is in use:

[0034] First, insert the plugging member 22 at the left and right ends of the stepped die 21 through the positioning pins 25 and fix them with bolts. Add the matrix material into the arc-shaped strip 23 and the groove 24 of the stepped die 21, and add the same color as the final spline body 4 into the matrix material.

[0035] Then, close the two stepped dies 21 and the corresponding plugging members 22 to form the molding die 2, and use the existing device to heat and cure it. The curing temperature and time are determined according to the matrix material of the selected product.

[0036] Next, after cooling, demold the spline body 4. Remove the plugging members 22 at both ends of the molding die 2. Place one end of the molding die 2 in the positioning convex edge 151 on the receiving plate 15, and rotate the pressing frame 13 to rotate the other end of the pressing frame 13 to the pressing angle of the molding die 2.

[0037] Finally, when the jack 3 jacks up the spline body 4, a soft connection is made between the jack 3 and the spline body 4 through the protective pad 16 to prevent the jack 3 from damaging the spline body 4. At the same time, the pressing frame 13 hinders the molding die 2 from rising, thereby realizing the demolding of the molding die 2. After the demolding of the spline body 4 is completed, just rotate the pressing frame 13 again to move the pressing frame 13 away from the clamping angle of the molding die 2 and remove the molding die 2.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A production equipment for stepped composite splines, characterized in that: The invention comprises a disassembly component (1), a molding die (2), a jack (3) and a spline body (4), wherein the spline body (4) is located inside the molding die (2), the molding die (2) is located at the upper end of the disassembly component (1), and the jack (3) is placed inside the disassembly component (1); The disassembly assembly (1) comprises a rectangular demoulding frame (11), the left and right ends of the demoulding frame (11) are symmetrically fixed with fixed blocks (12), the fixed blocks (12) are rotatably connected with L-shaped pressing frames (13), a connecting beam (14) is fixed between the two pressing frames (13) on the same side, and a receiving plate (15) is fixed at the upper end of the demoulding frame (11); The molding die (2) comprises two symmetrically arranged step dies (21), opposite sides of the step dies (21) are respectively provided with grooves (24), a plurality of arc-shaped strips (23) are provided in the grooves (24) along their circumferences, the left and right ends of the step dies (21) are respectively fixed with symmetrically arranged positioning pins (25), the left and right ends of the step dies (21) are respectively connected to blocking pieces (22) via the positioning pins (25) and are fixedly connected to the step dies (21) via bolts.

2. The production equipment of a stepped composite material spline according to claim 1, characterized in that: Positioning pins (25) are fixed on opposite sides of the two step dies (21), the two step dies (21) are connected to each other via the positioning pins (25) and are fixedly connected via bolts, the central portion of the molding die (2) is square, and the left end face and the right end face of the step die (21) are provided with two clamping angles.

3. The production equipment of a stepped composite material spline according to claim 1, characterized in that: A semicircular groove is formed on one side of the blocking piece (22) close to the stepped mold (21).

4. The production equipment of a stepped composite material spline according to claim 1, characterized in that: The upper end of the receiving plate (15) is provided with a square positioning convex edge (151), the lower end of the receiving plate (15) is provided with a placement tube (152), the lower end of the placement tube (152) is provided with an inwardly folded edge, a protection pad (16) is placed in the placement tube (152), and the upper end of the protection pad (16) is provided with a countersunk hole.

5. The production equipment of a stepped composite material spline according to claim 1, characterized in that: A shaft (41) is provided at one end of the spline body (4), a plurality of convex strips (42) are provided on the outer wall of the spline body (4) along its circumference, and the diameter of the shaft (41) is smaller than the diameter of the spline body (4).

6. The production equipment of a stepped composite material spline according to claim 1, characterized in that: One end of the clamping frame (13) is rotatably connected to the fixed block (12) of the demoulding frame (11), and the other end of the clamping frame (13) corresponds to the clamping angle of the step mold (21).

7. The production equipment of a stepped composite material spline according to claim 1, characterized in that: The demoulding frame (11) and the pressing frame (13) are formed by welding square tubes. A placement plate is welded to the lower end of the demoulding frame (11), and the jack (3) is placed on the placement plate.

8. The production equipment of a stepped composite material spline according to claim 4, characterized in that: The depth of the countersunk hole of the protection pad (16) is greater than the thickness of the shaft (41) at both ends of the spline body (4).

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