Composite material cutting equipment and cutting method for rotor wing

Abstract

The invention relates to the technical field of rotor wing production and machining, and particularly discloses composite material cutting equipment for a rotor wing and a cutting method. A box body; a cutting knife; and a suction assembly. Due to the fact that the cutter is arranged upwards, the cutter jacks up the glass fiber cloth upwards and applies cutting force, edge fibers are warped upwards and broken due to the upward pushing force at the moment that the fibers are cut off, burrs are upward, and after the cutter finishes cutting, the cutter slowly gets close to the burrs on the edges of the glass fiber cloth at the two ends. As the burrs are upward, the cutting knife can cut off the upward burrs, and the cut scraps are sucked into the external collecting bin by the suction assembly, the burrs at the edge of a notch of the glass fiber cloth can be cut off while the glass fiber cloth is cut, so that the procedure of independently treating the burrs is omitted, and the production efficiency is improved. And therefore, the rotor wing production and processing efficiency is improved, and the processing cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of rotor production and processing, and particularly relates to a composite material cutting device and a cutting method for a rotor. Background Art

[0002] At present, in order to make the rotors of unmanned aerial vehicles or airplanes meet the requirements of light weight, high strength, fatigue resistance, corrosion resistance, and aerodynamic performance, a layer of composite material needs to be coated on the surface of the PMI foam material used to make the rotors. This composite material can be glass fiber cloth, carbon fiber cloth, hybrid fiber cloth, etc. Before coating the composite material on the surface of the PMI foam material, the composite material needs to be cut into long strips one by one to facilitate subsequent layer-by-layer coating on the surface of the PMI foam material.

[0003] Taking glass fiber cloth as an example, when cutting glass fiber cloth, since glass fiber is drawn from molten glass and is essentially an inorganic non-metallic brittle material, the fibers are prone to breakage rather than smooth cutting during cutting, resulting in loose fibers, i.e., burrs, at the edges. When the burrs are subjected to external forces, stress concentration is likely to occur around these loose fiber filaments. Stress concentration may cause local fiber breakage, which may further lead to greater damage, thereby reducing the strength and stability of the overall structure of the glass fiber cloth.

[0004] In view of the above technical problems, the applicant has retrieved some prior arts to achieve the treatment of burrs. For example, a glass fiber cloth surface treatment device with a patent publication number of CN117026606A. Its main technical means is that the motor drives the winding roller to rotate, and then the first turntable drives the second turntable to rotate through a connecting rod, thereby driving the cleaning roller to rotate. The cleaning roller can adsorb and clean the burrs adhered to the surface of the glass fiber cloth, and then the collection box removes them. After the cutting knife completes the cutting of the edge of the glass fiber cloth, the brush blades can roll and smooth the edge of the glass fiber cloth. After analysis by the applicant, the disadvantages of this technical solution are as follows: The above solution processes the burrs on the edge of the glass fiber cloth after cutting the glass fiber cloth, which increases the processes of rotor processing, thereby reducing the efficiency of rotor production and processing, and also increasing the processing cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a composite material cutting device and a cutting method for a rotor in view of the deficiencies of the prior art, so as to solve the technical problem that in the prior art, the burrs on the edge of the glass fiber cloth are processed after cutting the glass fiber cloth, which increases the processes of rotor processing and thus reduces the efficiency of rotor production and processing.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A composite material cutting device for a rotor, comprising a cutting platform, a bracket, a moving member and a cutter. The device further includes: A cutting groove. A cutting groove is provided on the surface of the cutting platform. A moving seat is arranged on the cutter. The moving seat is slidably installed in the cutting groove. The cutter is arranged upward. One side of the moving seat is connected with a driving rod, and the driving rod is connected with the moving member; A box body. A telescopic member I is installed on the driving rod. The output end of the telescopic member I is installed with a box body. The box body is located at the rear end in the cutting direction of the cutter. The box body is used to press the fiberglass cloth on the cutting platform; A cutting knife. A cavity is provided in the box body. A cutting knife is horizontally installed in the cavity. The bottom of the cutting knife is flush with the bottom of the box body; A suction assembly. A suction assembly is installed on the top of the box body. The suction assembly is communicated with the cavity, and the suction assembly is connected with a collection bin.

[0007] As a preference of the above technical solution, pressure rollers are rotatably installed on opposite sides of the cavity. The pressure rollers are located above the moving seat. The pressure rollers press the edge position of the fiberglass cloth on the cutting platform. The axial direction of the pressure rollers is perpendicular to the cutting direction of the fiberglass cloth. The pressure rollers are close to the cutter.

[0008] As a preference of the above technical solution, adsorption sheets are arranged on opposite sides of the cavity. The adsorption sheets are located between the pressure rollers and the cutting knife.

[0009] As a preference of the above technical solution, an ironing board is installed at the bottom of the cutting knife. The ironing board is located in the middle of the cut seam after the fiberglass cloth is cut.

[0010] As a preference of the above technical solution, a plurality of air bags are installed on opposite inner walls of the cutting groove. An arc plate is arranged outside the air bag. A plurality of air injection holes are also provided on the inner wall of the cutting groove. The air injection holes are communicated with the air bag and are inclined upward. In the normal state of the air bag, the distance between opposite arc plates is less than the width of the moving seat. A convex block is arranged on the driving rod, and the width of the convex block is equal to the width of the moving seat.

[0011] As a preference of the above technical solution, a pressing plate is installed on one side of the box body close to the cutter through a connecting rod. The pressing plate presses on the fiberglass cloth on the cutting platform. The pressing plate is in an eight-shaped configuration.

[0012] As a preference of the above technical solution, a plurality of telescopic members II are installed on both sides of the bracket. The output end of the telescopic member II is provided with a positioning block.

[0013] A cutting method for a composite material cutting device for a rotor, the method is applied to the composite material cutting device for a rotor as described above, the method comprising the following steps: Step S1: firstly, lay the glass fiber cloth flat on the cutting platform, and then fix the two sides of the glass fiber cloth by a plurality of telescopic parts 2 and positioning blocks; Step S2: The moving member drives the driving rod to move, so that the driving rod drives the cutting knife to move and cut the glass fiber cloth; Step S3: the cutter cuts upward so that the burrs on the edge of the glass fiber cloth face upward. After the cutter cuts, the cutter in the box cuts the burrs, and the cut debris is sucked away by the suction component. Step S4: while the burrs are being cut, the ironing board moves along with the cutting knife to iron the cuts of the burrs flat; Step S5: After the glass fiber cloth is cut, the cutter and the box body are driven back to their original positions by the moving part, and then the position of the glass fiber cloth is adjusted for the next cutting, and the operation is repeated in this way.

[0014] The beneficial effects of the present invention are: 1. In the present invention, the cutter is arranged upward, so that the cutter lifts the glass fiber cloth upward and applies a cutting force. In this way, the edge fibers will be lifted up and broken due to the upward thrust at the moment of being cut, so that the burrs are upward. In addition, the glass fiber is highly brittle. The ends of the broken fibers may be lifted up due to elastic rebound during cutting, further aggravating the upward burrs. After the cutter has finished cutting, the cutter will slowly approach the burrs at the edges of the glass fiber cloth at both ends. Since the burrs are upward, the cutter can cut off the upward burrs. The cut debris is sucked into the external collection bin by the suction component. In this way, the burrs at the cut edge of the glass fiber cloth can be cut off while the glass fiber cloth is being cut, thereby omitting the process of separately processing the burrs, thereby improving the efficiency of rotor production and processing and reducing processing costs. 2. In the present invention, when the suction assembly is in operation, the suction assembly sucks air from bottom to top, thus generating a suction force in the cavity, which pulls the burrs upward, thereby further aggravating the burrs upward, thereby ensuring that most of the burrs can be cut off by the cutting knife, thereby improving the cutting effect of the burrs, thus making it less likely for stress concentration to occur at the edge of the cut glass fiber cloth, thereby improving the strength and stability of the overall structure of the cut glass fiber cloth; 3. In the present invention, the pressing roller presses on the edge position of the fiberglass cloth. When the driving rod moves, the box body drives the two pressing rollers to rotate. Due to the downward pressure of the pressing rollers, the edge of the fiberglass cloth is oppressed, causing the edge fiber filaments to deform, so that the generated burrs curl upward after being extruded. In cooperation with the cutting knife, the upward movement of the burrs and the suction force generated by the suction component cause the burrs to rise further, thereby further intensifying the upward movement of the burrs, and further ensuring that the vast majority of the burrs can be cut off by the cutting knife, improving the cutting effect of the burrs. This makes the edge of the cut fiberglass cloth not prone to stress concentration, thereby improving the strength and stability of the overall structure of the cut fiberglass cloth. 4. In the present invention, after the pressing roller presses up the burrs, the adsorption sheet slowly approaches the burrs. When the charged burrs approach the adsorption sheet, due to the principle of electrostatic induction, the free electrons inside the adsorption sheet will redistribute, causing the side close to the burrs to carry charges opposite to those of the burrs, thereby generating an electrostatic attraction between the two, resulting in the burrs bending and moving towards the adsorption sheet. This can further intensify the upward movement of the burrs, further ensuring that the vast majority of the burrs can be cut off by the cutting knife, improving the cutting effect of the burrs. This makes the edge of the cut fiberglass cloth not prone to stress concentration, thereby improving the strength and stability of the overall structure of the cut fiberglass cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the cutting knife and the box body; Figure 3 is a schematic sectional structure diagram of the box body; Figure 4 is Figure 3 the enlarged structure diagram at A in Figure 5 is a schematic diagram of the internal structure of the box body; Figure 6 is a schematic diagram of the internal structure of the cutting groove; Figure 7 is Figure 6 the enlarged structure diagram at B in

[0016] In the figure: 1. Cutting platform; 2. Cutting groove; 3. Bracket; 4. Moving part; 5. Driving rod; 51. Convex block; 6. Cutting knife; 61. Moving seat; 7. Box body; 71. Cavity; 8. Suction component; 9. Cutting blade; 10. Pressing roller; 11. Adsorption sheet; 12. Ironing board; 13. Pressing plate; 131. Connecting rod; 14. First telescopic part; 15. Airbag; 151. Arc plate; 16. Air jet hole; 17. Second telescopic part; 18. Positioning block. DETAILED DESCRIPTION OF THE INVENTION

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0018] As Figures 1-5 shown, a composite material cutting device for a rotor includes a cutting platform 1, a bracket 3, a moving member 4, and a cutter 6. The device further includes: A cutting groove 2 is provided on the surface of the cutting platform 1. A moving seat 61 is provided on the cutter 6, and the moving seat 61 is slidably installed in the cutting groove 2. The cutter 6 is arranged upward. One side of the moving seat 61 is connected to a driving rod 5, and the driving rod 5 is connected to the moving member 4; A box body 7 is installed on the driving rod 5. A first telescopic member 14 is installed at the output end of the first telescopic member 14, and the box body 7 is installed at the output end of the first telescopic member 14. The box body 7 is located at the rear end in the cutting direction of the cutter 6, and the box body 7 is used to press the fiberglass cloth on the cutting platform 1; A cutting knife 9 is installed horizontally in the cavity 71 of the box body 7, and the bottom of the cutting knife 9 is flush with the bottom of the box body 7; A suction assembly 8 is installed on the top of the box body 7. The suction assembly 8 is communicated with the cavity 71, and the suction assembly 8 is connected to a collection bin.

[0019] In one case of this embodiment, the moving member 4 can be a stepping motor or other components that can drive the driving rod 5 to move along the bracket 3; the first telescopic member 14 can be a cylinder or other components that can be telescoped and driven; a suction pump is provided on the suction assembly 8.

[0020] In actual application of this embodiment, the moving member 4 and the driving rod 5 drive the cutter 6 to move and cut the glass fiber cloth, dividing the glass fiber cloth into two sections. When the cutter 6 is cutting, since the cutter 6 is set upward, the cutter 6 pushes the glass fiber cloth upward and applies a cutting force. In this way, the edge fibers will bend upward and break due to the upward thrust at the moment of being cut, thereby making the burrs face upward. In addition, the glass fiber is highly brittle. The ends of the broken fibers may bend upward due to elastic rebound during cutting, further exacerbating the upward burrs. After the cutter 6 has finished cutting, the cutter 9 will slowly approach the burrs on the edges of the glass fiber cloth at both ends. Since the burrs face upward, the cutter 9 can cut off the upward burrs, and the cut debris is sucked into the external collection bin by the suction component 8. In this way, the burrs on the edges of the cut edges of the glass fiber cloth can be cut off while the glass fiber cloth is being cut, thereby omitting the process of separately processing the burrs, thereby improving the efficiency of rotor production and processing and reducing processing costs. When the suction assembly 8 is in operation, the suction assembly 8 sucks air from bottom to top, thus generating a suction force in the cavity 71, which pulls the burrs upward, thereby further aggravating the burrs upward, thereby ensuring that most of the burrs can be cut off by the cutting knife 9, thereby improving the cutting effect of the burrs, thus making it less likely for stress concentration to occur at the edge of the cut glass fiber cloth, thereby improving the strength and stability of the overall structure of the cut glass fiber cloth; When the cutter 6 cuts the glass fiber cloth, the friction and extrusion between the cutter 6 and the glass fiber cloth will destroy the fiber structure, causing the fibers to break and fall off, forming fine particles and dust. At the same time, the glass fiber itself is brittle and can easily break into tiny fiber segments under the action of the cutting force. These tiny fiber segments will float in the air and form dust. The suction component 8 can suck away the generated dust while sucking away the debris, thereby effectively preventing the dust from polluting the working environment.

[0021] Furthermore, a pressure roller 10 is rotatably installed on the opposite side of the cavity 71. The pressure roller 10 is located above the movable seat 61. The pressure roller 10 presses the edge of the glass fiber cloth located on the cutting platform 1. The axial direction of the pressure roller 10 is perpendicular to the cutting direction of the glass fiber cloth, and the pressure roller 10 is close to the cutter 6.

[0022] In actual application of this embodiment, the pressing roller 10 presses on the edge position of the fiberglass cloth. When the driving rod 5 moves, the box body 7 drives the two pressing rollers 10 to rotate. Through the downward pressure of the pressing rollers 10, the edge of the fiberglass cloth is oppressed, causing the edge fiber filaments to deform, so that the generated burrs curl upward after being extruded. Cooperating with the cutter 6, the upward burrs and the suction force generated by the suction assembly 8 cause the burrs to rise, further intensifying the upward movement of the burrs, thereby ensuring that the vast majority of the burrs can be cut off by the cutting knife 9, improving the cutting effect of the burrs. In this way, the edge of the cut fiberglass cloth is not prone to stress concentration, thus improving the strength and stability of the overall structure of the cut fiberglass cloth; During the rolling process of the pressing roller 10, pressure is applied to the fiberglass cloth, so that the fiberglass cloth is not prone to displacement during cutting, effectively avoiding uneven cutting edges at the edge position due to the deviation of the fiberglass cloth during cutting; When the pressing roller 10 is rolling, it can compact the edge position of the fiberglass cloth, so that the edge is not prone to stress concentration after the burrs are cut, further improving the strength and stability of the overall structure of the cut fiberglass cloth.

[0023] Further, adsorption sheets 11 are arranged on opposite sides of the cavity 71, and the adsorption sheets 11 are located between the pressing roller 10 and the cutting knife 9.

[0024] In one case of this embodiment, the adsorption sheet 11 can be a metal object such as a steel sheet or a copper sheet.

[0025] In actual application of this embodiment, after the pressing roller 10 presses up the burrs, the adsorption sheet 11 slowly approaches the burrs. Due to the self-friction or other reasons of the fiberglass cloth during production and transportation, static electricity exists on the surface of the fiberglass cloth. Moreover, static electricity will also be generated during the cutting process of the cutter 6 when it rubs against the fiberglass cloth, so static electricity also exists on the burrs. When the burrs with static electricity approach the adsorption sheet 11, due to the principle of static induction, the free electrons inside the adsorption sheet 11 will redistribute, making the side close to the burrs carry charges opposite to those of the burrs, thus generating an electrostatic attraction force between the two, causing the burrs to bend and move towards the adsorption sheet 11. In this way, the upward movement of the burrs can be further intensified, further ensuring that the vast majority of the burrs can be cut off by the cutting knife 9, improving the cutting effect of the burrs. In this way, the edge of the cut fiberglass cloth is not prone to stress concentration, thus improving the strength and stability of the overall structure of the cut fiberglass cloth.

[0026] As Figure 3 and Figure 5 shown, an ironing plate 12 is installed at the bottom of the cutting knife 9, and the ironing plate 12 is located in the middle of the cut seam after the fiberglass cloth is cut.

[0027] In one case of this embodiment, the ironing board 12 can be a metal object connected to a circuit, so that the metal object is heated, thereby ironing the cut burr incision flat.

[0028] When this embodiment is actually applied, when the cutter 9 trims the burr, the incision of the burr is located below the cutter 9 and slowly approaches the ironing board 12. The ironing board 12 will iron the incision flat, which can avoid the incision from spreading filaments, so that the edge position of the fiberglass cloth is not prone to stress concentration, thereby improving the strength and stability of the overall structure of the cut fiberglass cloth. During the ironing process, smoke will be generated at the incision. The suction assembly 8 sucks away the smoke while sucking away the debris and dust, thereby further effectively avoiding the pollution of the working environment by the smoke.

[0029] Such as Figure 6 and Figure 7 As shown, a number of air bags 15 are installed on both opposite inner walls of the cutting groove 2. An arc plate 151 is arranged outside the air bag 15. A number of air spray holes 16 are also opened on the inner wall of the cutting groove 2. The air spray holes 16 are communicated with the air bag 15, and the air spray holes 16 are inclined upward. In the normal state of the air bag 15, the distance between the two opposite arc plates 151 is less than the width of the moving seat 61. A convex block 51 is arranged on the driving rod 5, and the width of the convex block 51 is equal to the width of the moving seat 61.

[0030] When this embodiment is actually applied, during the process of the driving rod 5 driving the moving seat 61 and the cutter 6 to move, the moving seat 61 will slowly approach the arc plate 151 and slowly extrude the arc plate 151 outward, so that the air bag 15 is compressed. The air bag 15 will spray air through the air spray hole 16, and the sprayed air is directed towards the box body 7. The upward air can further intensify the burr upward, further ensuring that the vast majority of the burrs can be trimmed by the cutter 9. At the same time, the upward air can effectively prevent the generated debris, dust and smoke from falling downward into the cutting groove 2, thereby improving the collection effect of the suction assembly 8 on the debris, dust and smoke, and effectively avoiding the pollution of the working environment by the debris, dust and smoke. When the moving seat 61 leaves the arc plate 151, the air bag 15 slowly returns to its original state. At this time, the convex block 51 will contact the arc plate 151, so that the air bag 15 is compressed again, and the air spray hole 16 sprays air again. This time, the sprayed air is directed towards the ironing board 12, so that the incision contacts a large amount of air after being ironed flat, thereby accelerating the solidification at the incision and effectively avoiding the phenomenon of molten droplets at the incision, and further ensuring the quality of the edge of the fiberglass cloth.

[0031] Such as Figure 2 and Figure 3As shown in the figure, a pressing plate 13 is installed on one side of the box body 7 close to the cutting knife 6 through a connecting rod 131. The pressing plate 13 presses on the fiberglass cloth on the cutting platform 1, and the pressing plate 13 is in an eight-shaped configuration.

[0032] In actual application of this embodiment, the box body 7 drives the pressing plate 13 to move through the connecting rod 131, and the pressing plate 13 can flatten the fiberglass cloth, so that the fiberglass cloth is in a flat state before being cut, thereby ensuring that the cut seam is flat when the fiberglass cloth is cut.

[0033] As Figure 1 shown, a number of second telescopic members 17 are installed on both sides of the bracket 3, and positioning blocks 18 are provided at the output ends of the second telescopic members 17.

[0034] In actual application of this embodiment, since the cutting knife 6 exerts a cutting force on the fiberglass cloth when cutting the fiberglass cloth, the fiberglass cloth will be pulled, which easily causes the surface of the fiberglass cloth to be pulled and wrinkled. Before cutting, a number of second telescopic members 17 can be extended so that the positioning blocks 18 abut against the fiberglass cloth, so that both sides of the fiberglass cloth are fixed, which can effectively prevent the fiberglass cloth from being pulled and deformed when being cut, and at the same time ensure that the cut seam is flat when the fiberglass cloth is cut.

[0035] A cutting method for a composite material cutting device for a rotor, the method is applied to the composite material cutting device for a rotor as described above, and the method includes the following steps: Step S1: First, lay the fiberglass cloth flat on the cutting platform 1, and then fix both sides of the fiberglass cloth through a number of second telescopic members 17 and positioning blocks 18; Step S2: Drive the driving rod 5 to move through the moving member 4, so that the driving rod 5 drives the cutting knife 6 to move to cut the fiberglass cloth; Step S3: The cutting knife 6 cuts upwards so that the burrs generated at the edge of the fiberglass cloth face upwards. After the cutting knife 6 cuts, the cutting knife 9 in the box body 7 trims the burrs, and the suction assembly 8 sucks away the trimmed debris; Step S4: While the burrs are being trimmed, the ironing plate 12 moves with the cutting knife 9 to iron the cut after the burrs are trimmed; Step S5: After the fiberglass cloth is cut, drive the cutting knife 6 and the box body 7 back to the original position through the moving member 4, and then adjust the position of the fiberglass cloth for the next cutting, and perform such cyclic operations.

[0036] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A composite material cutting device for a rotor, comprising a cutting platform (1), a bracket (3), a moving part (4) and a cutting knife (6), characterized in that: The device also includes: A cutting groove (2), wherein a cutting groove (2) is formed on the surface of the cutting platform (1), a movable seat (61) is provided on the cutting knife (6), the movable seat (61) is slidably mounted in the cutting groove (2), the cutting knife (6) is arranged upward, a driving rod (5) is connected to one side of the movable seat (61), and the driving rod (5) is connected to the moving member (4); A box body (7), wherein a telescopic member 1 (14) is mounted on the driving rod (5), and the output end of the telescopic member 1 (14) is mounted with the box body (7), the box body (7) is located at the rear end of the cutting direction of the cutter (6), and the box body (7) is used to press the glass fiber cloth on the cutting platform (1); A cutting knife (9), wherein a cavity (71) is provided in the box body (7), and the cutting knife (9) is horizontally installed in the cavity (71), and the bottom of the cutting knife (9) is flush with the bottom of the box body (7); A suction assembly (8), wherein the top of the box body (7) is provided with a suction assembly (8), the suction assembly (8) is communicated with the cavity (71), and the suction assembly (8) is connected with the collection bin.

2. The composite material cutting device for a rotor according to claim 1, characterized in that: A pressure roller (10) is rotatably mounted on one side opposite to the cavity (71). The pressure roller (10) is located above the movable seat (61). The pressure roller (10) presses the edge of the glass fiber cloth on the cutting platform (1). The axial direction of the pressure roller (10) is perpendicular to the cutting direction of the glass fiber cloth. The pressure roller (10) is close to the cutting knife (6).

3. The composite material cutting device for a rotor according to claim 2, characterized in that: An adsorption sheet (11) is provided on one opposite side of the cavity (71), and the adsorption sheet (11) is located between the pressure roller (10) and the cutting knife (9).

4. The composite material cutting device for a rotor according to claim 3, characterized in that: An ironing board (12) is installed at the bottom of the cutting knife (9), and the ironing board (12) is located in the middle of the cut seam after the glass fiber cloth is cut.

5. The composite material cutting device for a rotor according to claim 4, characterized in that: A plurality of air bags (15) are installed on two opposite inner walls of the cutting groove (2), and an arc plate (151) is arranged outside the air bag (15). A plurality of jet holes (16) are also opened on the inner wall of the cutting groove (2), and the jet holes (16) are connected to the air bags (15), and the jet holes (16) are arranged to face upwards. When the air bag (15) is in a normal state, the distance between the two opposite arc plates (151) is smaller than the width of the moving seat (61), and a protrusion (51) is arranged on the driving rod (5), and the width of the protrusion (51) is equal to the width of the moving seat (61).

6. The composite material cutting device for a rotor according to claim 1, characterized in that: A pressing plate (13) is installed on one side of the box body (7) close to the cutter (6) via a connecting rod (131); the pressing plate (13) is pressed on the glass fiber cloth on the cutting platform (1); and the pressing plate (13) is in an eight-shaped shape.

7. The composite material cutting device for a rotor according to claim 1, characterized in that: A plurality of telescopic members (17) are installed on both sides of the bracket (3), and a positioning block (18) is provided at the output end of the telescopic member (17).

8. A cutting method for a composite material cutting device for a rotor, the method being applied to the composite material cutting device for a rotor as claimed in any one of claims 1 to 7, the method comprising the following steps: Step S1: firstly, lay the glass fiber cloth flat on the cutting platform (1), and then fix the two sides of the glass fiber cloth by using a plurality of telescopic parts (17) and positioning blocks (18); Step S2: the moving member (4) drives the driving rod (5) to move, so that the driving rod (5) drives the cutting knife (6) to move and cut the glass fiber cloth; Step S3: the cutter (6) cuts upward so that the burrs on the edge of the glass fiber cloth face upward. After the cutter (6) cuts, the cutter (9) in the box body (7) cuts the burrs, and the cut debris is sucked away by the suction component (8); Step S4: while the rough edges are being cut, the ironing board (12) moves along with the cutting knife (9) to iron the cut edges flat; Step S5: After the glass fiber cloth is cut, the moving member (4) drives the cutter (6) and the box body (7) back to their original positions, and then the position of the glass fiber cloth is adjusted for the next cutting, and the operation is repeated in this way.

Images