Auxiliary shearing device for automatic winding forming of variable-diameter rotary body structure

Abstract

The application relates to an auxiliary shearing device for automatic winding forming of a variable-diameter rotary body structure, and relates to the field of cutting equipment. The auxiliary shearing device comprises a base, a horizontal position adjusting component, a vertical position adjusting component, a cutter holder, a cutter moving component and a cutter blade. The horizontal position adjusting component is arranged on the base to control horizontal movement of the vertical position adjusting component along the length direction of the base. The cutter holder is arranged on the upper part of the vertical position adjusting component. The L-shaped cutter blade is arranged in the cutter holder. The cutter moving component is arranged in the cutter holder and connected with the cutter blade to drive transverse, longitudinal and deflection movement of the cutter blade. The sharp part and the bent part of the cutter blade are in contact with one side of prepreg to cut an opening on the one side of the prepreg. The application has the advantages of replacing manual opening and being capable of cutting the prepreg in one stroke without leaving a burr.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting equipment, in particular to an auxiliary shearing device for automatic winding forming of variable-diameter rotary body structure. BACKGROUND

[0002] The composite material winding forming process is a process technology of winding continuous fibers (or fiber cloth, pre-impregnated material) immersed in resin glue into a core mold according to a predetermined trajectory, and then obtaining a composite material product through curing and demolding. According to the physical and chemical state of the resin matrix during fiber winding forming, it is divided into three types of dry winding, wet winding and semi-dry winding.

[0003] When using dry winding to form a large variable-diameter rotary body structure, wide-band pre-impregnated material is generally used to improve manufacturing efficiency. Because the structure radii corresponding to the two ends of the wide-band are different, the winding circumference of the wide-band near the large end side is greater than that near the small end side. In order to make the wide-band pre-impregnated material better adhere to the mold surface, the wide-band pre-impregnated material on the large end side needs to be appropriately cut. The existing winding equipment does not have the function of cutting the wide-band pre-impregnated material, and other types of cutting tools cannot be applied to pre-impregnated material immersed in resin. Therefore, at present, manual cutting is used to complete the cutting, which has the problems of uneven cutting size and inaccurate cutting position, resulting in convex points or bulges on the surface of the wound rotary body. Manual cutting not only has high labor cost, but also cannot achieve high yield.

[0004] Therefore, in view of the above problems, an auxiliary shearing device for automatic winding forming of variable-diameter rotary body structure is needed. SUMMARY

[0005] (I) Technical problem to be solved

[0006] The technical problem to be solved by the present application is to solve the problem of the need for manual cutting and low winding yield.

[0007] (II) Technical scheme

[0008] In order to solve the above technical problems, the present application provides an auxiliary shearing device for automatic winding forming of variable-diameter rotary body structure, which comprises a base, a horizontal position adjusting part, a vertical position adjusting part, a knife holder, a knife moving part and a knife blade. The horizontal position adjusting part is arranged on the base to control the horizontal movement of the vertical position adjusting part along the length direction of the base. The knife holder is arranged on the upper part of the vertical position adjusting part. The knife blade in the shape of inverted L is arranged in the knife holder. The knife moving part is arranged in the knife holder and connected with the knife blade to drive the transverse, longitudinal and deflection movement of the knife blade. The sharp part and the bent part of the knife blade are in contact with one side of the pre-impregnated material to cut an opening on one side of the pre-impregnated material.

[0009] As a further explanation of the present invention, preferably, the blade includes a main body, a piercing part, a transition part, and a cutting part. The main body is connected to the blade moving part. The piercing part is a sharp portion with the sharp end pointing downwards. The cutting part is located between the main body and the piercing part. The transition part is located between the cutting part and the piercing part and is located at the bend of the L-shaped blade. The inner sides of the main body, the transition part, and the cutting part are all ground with blade edges.

[0010] As a further explanation of the present invention, preferably, the blades of both the transition portion and the cutting portion are arc-shaped, and the curvature of the cutting portion blade is greater than that of the transition portion blade.

[0011] As a further explanation of the present invention, preferably, the blade is coated with a nano-coating containing SiO2 to improve the hardness and wear resistance of the blade surface.

[0012] As a further explanation of the present invention, preferably, the nano-coating also contains polytetrafluoroethylene to make the coating surface smooth.

[0013] As a further explanation of the present invention, preferably, the blade moving component includes a transverse moving motor, a transverse belt, a transverse slide, a longitudinal moving motor, a longitudinal belt, and a longitudinal slide. The transverse moving motor is fixedly connected to the blade holder, and the transverse slide is horizontally slidably connected to the blade holder. One end of the transverse belt is connected to the transverse moving motor to drive the transverse belt to rotate, and the other end of the transverse belt is connected to the transverse slide to drive the transverse slide to slide horizontally. The longitudinal moving motor is fixedly connected to the transverse slide, and the longitudinal slide is vertically slidably connected to the transverse slide. One end of the longitudinal belt is connected to the longitudinal moving motor to drive the longitudinal belt to rotate, and the other end of the longitudinal belt is connected to the longitudinal slide to drive the longitudinal slide to move vertically. The blade is mounted on the longitudinal slide.

[0014] As a further explanation of the present invention, preferably, a blade motor is provided on the longitudinal slide, and the output end of the blade motor is rotatably connected to the blade to cause the blade to deflect.

[0015] As a further explanation of the present invention, preferably, the horizontal position adjustment component includes a horizontal adjustment motor, a horizontal adjustment pulley, and a horizontal adjustment belt. The horizontal adjustment motor is fixedly connected to one side of the base. The two horizontal adjustment pulleys are respectively rotatably connected to the output end of the horizontal adjustment motor and the other side of the base. The two ends of the horizontal adjustment belt are respectively sleeved on the two horizontal adjustment pulleys. A support platform is slidably connected to the base. The middle part of the upper section of the horizontal adjustment belt is fixedly connected to the support platform to drive the support platform to slide. The vertical position adjustment component is mounted on the support platform.

[0016] As a further explanation of the present invention, preferably, two parallel guide rails are fixedly connected inside the base, the length direction of the guide rails is the same as the length direction of the base, and the support platform is slidably connected to the guide rails.

[0017] As a further explanation of the present invention, preferably, the vertical position adjustment component includes a fixed column and a movable column. One end of the fixed column is fixedly connected to the support platform, and the movable column is inserted into the top end of the fixed column and slidably connected to the fixed column. The sliding direction of the movable column is vertical, and the top of the movable column is fixedly connected to the tool holder. The movable column has a plurality of holes spaced apart along its length, and a threaded hole is provided on one side of the top of the fixed column. A bolt is threaded into the threaded hole and inserted into the hole of the movable column to restrict the movement of the movable column in the vertical direction.

[0018] (III) Beneficial Effects

[0019] The above-described technical solution of the present invention has the following advantages:

[0020] 1. The auxiliary shearing device provided by the present invention drives the vertical position adjustment component and the blade holder to move by sliding the support platform. By adjusting the motor speed in the blade movement component, the horizontal movement speed of the blade is kept consistent with the movement speed of the winding head during automatic winding and forming, so as to ensure the smooth shearing of the width prepreg and the uniformity of the cut size throughout the winding process.

[0021] 2. The overall height of the shearing module can be changed by adjusting the extension of the movable column to adapt to the shearing of prepreg width during automatic winding forming of rotating structural parts with different shaft heights and different sizes.

[0022] 3. By designing the blade with an irregular structure, it can first puncture the prepreg through the piercing part during shearing. Then, through the coordinated control of different motors, the blade is driven to rotate and move to further cut the prepreg, achieving successful shearing of wide prepreg in one go. At the same time, the blade is controlled to rotate to the initial horizontal state to avoid touching the prepreg during the return stroke and affecting the winding tension of the prepreg during the winding process.

[0023] 4. By applying a nano-coating to the blade, the hardness and wear resistance of the blade surface can be improved, and the blade surface can be made smooth, reducing the adhesion of the blade to the wide-band prepreg resin and increasing the service life of the blade. Attached Figure Description

[0024] Figure 1 This is an assembly rendering of the present invention;

[0025] Figure 2 This is a diagram illustrating the cutting effect of the present invention;

[0026] Figure 3 This is a structural diagram of the horizontal position adjustment component of the present invention;

[0027] Figure 4 This is a structural diagram of the tool holder of the present invention;

[0028] Figure 5 This is a structural diagram of the blade movement component of the present invention;

[0029] Figure 6 This is a structural diagram of the blade of the present invention.

[0030] In the diagram: 1. Base; 11. Guide rail; 12. Support platform; 2. Horizontal position adjustment component; 21. Horizontal adjustment motor; 22. Horizontal adjustment pulley; 23. Horizontal adjustment belt; 3. Vertical position adjustment component; 31. Fixed column; 32. Movable column; 4. Blade holder; 5. Blade movement component; 51. Lateral movement motor; 52. Lateral belt; 53. Lateral slide; 54. Longitudinal movement motor; 55. Longitudinal belt; 56. Longitudinal slide; 57. Blade motor; 6. Blade; 61. Main body; 62. Puncture section; 63. Transition section; 64. Cutting section; 7. Prepreg; 8. Rotating body. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0032] An auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure, combined with Figure 1 , Figure 2 It includes a base 1, a horizontal position adjustment component 2, a vertical position adjustment component 3, a tool holder 4, a tool movement component 5, and a blade 6. The horizontal position adjustment component 2 is mounted on the base 1 to control the vertical position adjustment component 3 to move horizontally along the length of the base 1. The tool holder 4 is mounted on the upper part of the vertical position adjustment component 3. The blade 6 is mounted inside the tool holder 4. The tool movement component 5 is mounted inside the tool holder 4 and connected to the blade 6 to drive the blade 6 to move laterally, longitudinally, and deflectively.

[0033] Combination Figure 1 , Figure 3 The base 1 is a long strip structure, placed on the ground. Two parallel guide rails 11 are fixedly connected to the inner cavity of the base 1. The guide rails 11 are smooth rods. The length direction of the guide rails 11 is the same as the length direction of the base 1. A support platform 12 is slidably connected to the two guide rails 11. The vertical position adjustment component 3 is located on the support platform 12 so that the vertical position adjustment component 3, the tool holder 4, the tool movement component 5 and the blade 6 can slide relative to the base 1 in the horizontal direction, thereby adapting to rotating bodies 8 of different lengths.

[0034] Combination Figure 1 , Figure 3The horizontal position adjustment component 2 includes a horizontal adjustment motor 21, horizontal adjustment pulleys 22, and a horizontal adjustment belt 23. The horizontal adjustment motor 21 is fixedly connected to one side of the base 1. The two horizontal adjustment pulleys 22 are rotatably connected to the output end of the horizontal adjustment motor 21 and the other side of the base 1, respectively. The two ends of the annular horizontal adjustment belt 23 are respectively fitted onto the two horizontal adjustment pulleys 22, and the middle of the upper section of the horizontal adjustment belt 23 is fixedly connected to the support platform 12. When the horizontal adjustment motor 21 rotates, the horizontal adjustment pulleys 22 can be used to rotate the horizontal adjustment belt 23, thereby pulling the support platform 12 to slide and achieve automatic movement. By pre-inputting the length of the rotating body 8 into the controller, the program can automatically calculate the distance that the support platform 12 needs to move, and at the same time calculate the speed and number of revolutions of the horizontal adjustment motor 21 to achieve precise control.

[0035] like Figure 1 As shown, the vertical position adjustment component 3 includes a fixed column 31 and a movable column 32. One bottom end of the fixed column 31 is fixedly connected to the support platform 12. The movable column 32 is inserted into the top end of the fixed column 31 and slidably connected to it. The sliding direction of the movable column 32 is vertical. The top of the movable column 32 is fixedly connected to the tool holder 4. The movable column 32 has several holes spaced apart along its length. A threaded hole is provided on one side of the top of the fixed column 31. A bolt is threaded into the threaded hole and inserted into the hole of the movable column 32 to restrict the vertical movement of the movable column 32, thereby achieving height adjustment of the tool holder 4. The support platform 12 is arranged with two sets of vertical position adjustment components 3 at intervals along the length of the rotating body 8. By setting only two sets of vertical position adjustment components 3, the height adjustment range of the tool holder 4 is increased while reducing manufacturing costs. At the same time, due to the special structure of the blade 6 and the control of the blade movement component 5, the resistance of the prepreg 7 to the movement of the blade 6 is greatly reduced when cutting the prepreg 7. As a result, the vibration generated when the blade 6 moves is almost negligible. Therefore, the vertical position adjustment component 3 only needs to provide support, without the need to add an anti-vibration structure or select a more robust column structure, thus reducing production costs.

[0036] Combination Figure 1 , Figure 4 The tool holder 4 is only a square frame structure, and while maintaining the structural strength of the tool holder 4, it is open on both sides. On the one hand, it reduces the weight of the tool holder 4 and reduces the burden on the vertical position adjustment component 3. On the other hand, it allows the tool movement component 5 and the blade to be located in the middle of the tool holder 4, so that the center of gravity is located in the plane where the vertical position adjustment component 3 is located, thus avoiding bending the vertical position adjustment component 3 and affecting the position of the blade 6 and the cutting angle.

[0037] Combination Figure 2 , Figure 5The cutting tool movement component 5 includes a transverse movement motor 51, a transverse belt 52, a transverse slide 53, a longitudinal movement motor 54, a longitudinal belt 55, and a longitudinal slide 56. The transverse movement motor 51 is fixedly connected to the tool holder 4. The bottom of the tool holder 4 is also provided with a guide rod equivalent to the guide rail 11. The transverse slide 53 is horizontally slidably connected to the guide rod. A pulley is rotatably connected to the output end of the transverse movement motor 51, and a pulley is also rotatably connected to the tool holder 4. One end of the annular transverse belt 52 is connected to the pulley on the transverse movement motor 51 to drive the transverse belt 52 to rotate, and the other end of the transverse belt 52 is connected to the pulley on the tool holder 4. A section of the transverse belt 52 is fixedly connected to the transverse slide 53 so that the transverse movement motor 51 can drive the transverse slide 53 to slide horizontally. The longitudinal movement motor 54 is fixedly connected to the transverse slide 53, and the longitudinal slide 56 is vertically slidably connected to the transverse slide 53. A pulley is rotatably connected to the output end of the longitudinal movement motor 54, and a pulley is also rotatably connected to the transverse slide 53. One end of the annular longitudinal belt 55 is connected to the pulley on the longitudinal movement motor 54 to drive the longitudinal belt 55 to rotate, and the other end of the longitudinal belt 55 is connected to the pulley on the transverse slide 53. A section of the longitudinal belt 55 is fixedly connected to the longitudinal slide 56 so that the longitudinal movement motor 54 can drive the longitudinal slide 56 to move vertically. A blade motor 57 is provided on the longitudinal slide 56, and the output end of the blade motor 57 is rotatably connected to the blade 6 to cause the blade 6 to deflect. By setting the blade movement component 5, the horizontal, vertical, and deflection movements of the blade 6 can be realized.

[0038] Combination Figure 2 , Figure 6 The blade 6 includes a main body 61, a piercing section 62, a transition section 63, and a cutting section 64. The main body 61 is connected to the blade motor 57. The piercing section 62 is a sharp part with the sharp end facing downwards, protruding from the main body 61, making the overall structure of the blade 6 an inverted L-shape. The blade 6 is coated with a SiO2-containing nano-coating to improve the surface hardness and wear resistance. The nano-coating also contains polytetrafluoroethylene to make the coating surface smooth. The cutting section 64 is located between the main body 61 and the piercing section 62, and the transition section 63 is located between the cutting section 64 and the piercing section 62, at the bend of the L-shaped blade. The inner sides of the main body 61, the transition section 63, and the cutting section 64 are all ground with cutting edges. The cutting edges of the transition section 63 and the cutting section 64 are both arc-shaped, with the arc of the cutting edge of the cutting section 64 being greater than that of the transition section 63.

[0039] During cutting, the longitudinal movement motor 54 is first controlled to move the blade 6 downwards, and the piercing part 62 punctures the prepreg. Then, the blade motor 57 is controlled to rotate the blade 6 by 5-15° so that the transition part 63 and the cutting part 64 contact the prepreg 7. At the same time, the transverse movement motor 51 is controlled to move the blade 6 horizontally to cut an opening on one side of the prepreg 7. Since the prepreg has a certain strength and the resin on the prepreg has high viscosity, by using the blade 6 of this invention in conjunction with the drive of the blade movement component 5, the hardness of the blade 6 is improved while the resin adhesion is reduced, increasing the service life of the blade 6. Furthermore, by using a reasonably ground blade angle, a successful cut can be achieved in one go, avoiding the blade 6 scraping against the prepreg 7 during the return stroke, which would affect the tension during winding. At the same time, by using program control, compared with manual cutting, the uniformity of the cutting size can be ensured, and the staggered distribution of cutting openings of different thickness layers can be achieved, avoiding the overlapping of cutting opening positions of different thickness winding layers, which would affect the mechanical properties of the rotating body 8 product.

[0040] In summary, this invention, through the design of a novel blade 6 and a simple drive structure, can replace manual labor to accurately cut the prepreg 7, ensuring a yield rate of over 98% for the products wound by the rotating body 8. Furthermore, spraying a nano-coating onto the blade 6 structure solves the resin adhesion problem, while further improving the hardness and wear resistance of the blade 6, thus extending its service life.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure, characterized in that: The device includes a base (1), a horizontal position adjustment component (2), a vertical position adjustment component (3), a knife holder (4), a knife movement component (5), and a blade (6). The horizontal position adjustment component (2) is mounted on the base (1) to control the vertical position adjustment component (3) to move horizontally along the length of the base (1). The knife holder (4) is mounted on the upper part of the vertical position adjustment component (3). The inverted L-shaped blade (6) is mounted inside the knife holder (4). The blade (6) includes a main body (61), a piercing part (62), a transition part (63), and a cutting part (64). The main body (61) is connected to the blade movement component (5). The piercing part (62) is a sharp part with the sharp end pointing downwards. The cutting part (64) is located between the main body (61) and the piercing part (62). The transition part (63) is located between the cutting part (64) and the piercing part (62) and is located at the bend of the L-shaped blade (6). The inner sides of the main body (61), the transition part (63), and the cutting part (64) are all ground with blade edges. The blade movement component (5) is mounted in the blade holder (4) and connected to the blade (6) to drive the blade (6) to move laterally, longitudinally, and deflectively. The moving part (5) includes a transverse movement motor (51), a transverse belt (52), a transverse slide (53), a longitudinal movement motor (54), a longitudinal belt (55), and a longitudinal slide (56). The transverse movement motor (51) is fixedly connected to the tool holder (4). The transverse slide (53) is horizontally slidably connected to the tool holder (4). One end of the transverse belt (52) is connected to the transverse movement motor (51) to drive the transverse belt (52) to rotate. The other end of the transverse belt (52) is connected to the transverse slide (53) to drive the transverse slide (53) to slide horizontally. The longitudinal moving motor (54) is fixed on the transverse slide (53), the longitudinal slide (56) is vertically slidably connected to the transverse slide (53), one end of the longitudinal belt (55) is connected to the longitudinal moving motor (54) to drive the longitudinal belt (55) to rotate, and the other end of the longitudinal belt (55) is connected to the longitudinal slide (56) to drive the longitudinal slide (56) to move vertically. The blade (6) is mounted on the longitudinal slide (56), and the sharp part and the bent part of the blade (6) contact one side of the prepreg (7) to cut an opening on one side of the prepreg (7).

2. The auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure according to claim 1, characterized in that: Both the blades of the transition section (63) and the cutting section (64) are arc-shaped, and the curvature of the blade of the cutting section (64) is greater than that of the blade of the transition section (63).

3. The auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure according to claim 2, characterized in that: The blade (6) is coated with a nano-coating containing SiO2 to improve the hardness and wear resistance of the blade surface.

4. The auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure according to claim 3, characterized in that: The nano-coating also contains polytetrafluoroethylene to make the coating surface smooth.

5. The auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure according to claim 4, characterized in that: A blade motor (57) is provided on the longitudinal slide (56). The output end of the blade motor (57) is rotatably connected to the blade (6) so that the blade (6) deflects.

6. The auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure according to claim 1, characterized in that: The horizontal position adjustment component (2) includes a horizontal adjustment motor (21), a horizontal adjustment pulley (22) and a horizontal adjustment belt (23). The horizontal adjustment motor (21) is fixedly connected to one side of the base (1). The two horizontal adjustment pulleys (22) are rotatably connected to the output end of the horizontal adjustment motor (21) and the other side of the base (1). The two ends of the horizontal adjustment belt (23) are respectively fitted onto the two horizontal adjustment pulleys (22). A support platform (12) is slidably connected to the base (1). The middle part of the upper section of the horizontal adjustment belt (23) is fixedly connected to the support platform (12) to drive the support platform (12) to slide. The vertical position adjustment component (3) is mounted on the support platform (12).

7. The auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure according to claim 6, characterized in that: Two parallel guide rails (11) are fixed inside the base (1). The length direction of the guide rails (11) is the same as that of the base (1). The support platform (12) is slidably connected to the guide rails (11).

8. The auxiliary shearing device for automatic winding and forming of a variable-diameter rotating body structure according to claim 7, characterized in that: The vertical position adjustment component (3) includes a fixed column (31) and a movable column (32). The bottom end of the fixed column (31) is fixedly connected to the support platform (12). The movable column (32) is inserted into the top end of the fixed column (31) and slidably connected to the fixed column (31). The sliding direction of the movable column (32) is vertical. The top of the movable column (32) is fixedly connected to the tool holder (4). The movable column (32) has several holes spaced apart along its length. The top side of the fixed column (31) has a threaded hole. A bolt is threaded into the threaded hole and inserted into the hole of the movable column (32) to restrict the movement of the movable column (32) in the vertical direction.

Images