Processing method of wave-absorbing pyramid based on honeycomb material

Abstract

The present invention relates to the technical field of wave-absorbing cone processing, and in particular to a wave-absorbing cone processing method based on honeycomb materials, comprising the following steps: S1, processing of wave-absorbing cone tip; S2, processing of wave-absorbing cone cone cone; S3, processing of wave-absorbing cone; S4, processing of wave-absorbing cone matrix. The present invention processes the cone tip and cone cone first, and then splices the cone tip and cone cone to form a wave-absorbing cone. Compared with the existing method of splicing four triangular honeycomb panels, since the cone tip is a four-sided pyramid structure with a top, and the wave-absorbing cone is prepared by honeycomb materials, except for the honeycomb hole at the highest point, there will always be honeycomb side walls connected. The wave-absorbing cone formed by this method will not have a large area of ​​honeycomb material falling off at the vertex, thereby ensuring the integrity of the top of the wave-absorbing cone and avoiding the falling off of the top, so as to improve the qualified rate of wave-absorbing cone processing.

Description

Technical Field

[0001] The invention relates to the technical field of wave-absorbing pyramid processing, and in particular to a wave-absorbing pyramid processing method based on honeycomb materials. Background Art

[0002] The wave absorbing cone is a four-sided pyramid part that has good absorption characteristics for both mirror waves and surface waves. It is usually processed with honeycomb materials. The wave absorbing cone processed with honeycomb materials has the advantages of good wave absorbing performance, high heat dissipation efficiency, and high structural strength. It is widely used in aerospace, microwave darkroom and other fields. CNC ultrasonic cutting machine tools are high-end processing equipment for honeycomb materials. The wave absorbing cone processing method based on honeycomb materials is an advanced manufacturing method that relies on CNC ultrasonic cutting machine tools as a carrier and can perform efficient and high-quality processing on wave absorbing cones.

[0003] At present, the processing method of the wave absorbing cone based on honeycomb material is: splicing method, that is, four triangular honeycomb panels of the same size are bonded together (such as Figure 1 As shown), however, since the honeycomb material is a discontinuous material (discontinuous material refers to: materials whose internal structure is not continuously distributed. The microstructure of such materials is usually a composite system composed of a dispersed phase and a continuous phase, in which the dispersed phase exists in the continuous phase in the form of independent particles or fibers), there are a lot of gaps, especially in the top of the triangular honeycomb panel, where only a small number of fibers are connected. When ultrasonically cutting the triangular honeycomb panel, the top of the triangular honeycomb panel will fall off from the matrix, and the absorbing cone after processing will be incomplete (that is, the top of 15mm-25mm high falls off), which cannot meet the use requirements and is directly scrapped. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the technical problem that the existing processing method of honeycomb material wave-absorbing cone splicing method causes the honeycomb material wave-absorbing cone to be scrapped due to the falling off of the top, the present invention provides a wave-absorbing cone processing method based on honeycomb material. By improving the processing method of honeycomb material wave-absorbing cone, the falling off of the top can be avoided, so as to improve the qualified rate of honeycomb material wave-absorbing cone products.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a method for processing wave-absorbing cones based on honeycomb materials, comprising the following steps:

[0006] S1. Processing of the tip of the wave-absorbing cone: by adjusting the posture of the sharp knife portion and controlling the first honeycomb blank to rotate, the first honeycomb blank is cut internally and externally in turn to form the tip of the cone;

[0007] S2, processing the wave-absorbing pyramid frustum: by adjusting the posture of the forming knife and controlling the rotation of the second honeycomb blank, the second honeycomb blank is cut inwardly and outwardly inwardly incisively incisively in turn to form the frustum;

[0008] S3, processing the wave absorbing angle pyramid: obtaining the cone tip in step S1 and the frustum in step S2, and splicing the obtained cone tip and the frustum to form the wave absorbing angle pyramid;

[0009] S4, processing of wave absorbing pyramid matrix: obtaining the wave absorbing pyramids in step S3, and splicing a plurality of the wave absorbing pyramids with a substrate to form a matrix having The absorbing angle pyramid matrix of the absorbing angle pyramids;

[0010] Wherein: the number of rows of the wave absorbing angle pyramids on the wave absorbing angle pyramid matrix is , the number of columns is .

[0011] Therefore, the processing method of first processing the cone tip and the cone, and then splicing the cone tip and the cone to form the wave-absorbing corner cone, compared with the existing method of splicing four triangular honeycomb panels, because the cone tip is a four-sided pyramid structure with a top, and the wave-absorbing corner cone is prepared by honeycomb material, except for the honeycomb hole at the highest point, there will always be honeycomb side walls connected. The wave-absorbing corner cone formed by this processing method will not have a large area of ​​honeycomb material at the top falling off, thereby ensuring the integrity of the top of the wave-absorbing corner cone and avoiding the falling off of the top, so as to improve the qualified rate of the wave-absorbing corner cone processing.

[0012] Further, in step S1, the length and width of the lower surface of the cone tip are both L1, the height of the cone tip is H1, the bottom plate width is B1, and the inclination angle is α1;

[0013] The length and width of the first honeycomb workpiece are both L1A and the height is H1A;

[0014] The length and width of the lower surface of the cone tip hole are both L11, the height of the cone tip hole is H11, and the inclination angle is α2;

[0015] in:

[0016] .

[0017] Furthermore, the step S1 includes the following steps:

[0018] S1-1, cutting the first honeycomb workpiece: controlling the first honeycomb blank to rotate, and sequentially cutting the six surfaces of the first honeycomb blank to form the first honeycomb workpiece having a length and a width of L1A and a height of H1A;

[0019] S1-2, interpolation cutting of the first honeycomb workpiece: interpolation cutting is performed on the first honeycomb workpiece by adjusting the posture of the first sharp knife and controlling the first honeycomb workpiece to rotate. After the interpolation cutting is completed, the chips after the interpolation cutting are removed to form the first honeycomb workpiece having the cone-shaped hole;

[0020] S1-3, external cutting of the first honeycomb workpiece having the cone-point hole: by adjusting the posture of the second sharp knife and controlling the first honeycomb workpiece having the cone-point hole to rotate, external cutting is performed on the first honeycomb workpiece having the cone-point hole to form the cone tip;

[0021] Wherein: the pointed knife portion includes: the first pointed knife and the second pointed knife, the first pointed knife is used for internal cutting of the first honeycomb workpiece, and the second pointed knife is used for external cutting of the first honeycomb workpiece.

[0022] Furthermore, the step S1-2 includes the following steps:

[0023] S1-2-1, adjusting the posture of the first sharp knife: placing the first sharp knife at point O2 above the center point O1 of the first surface of the first honeycomb workpiece, and translating the first sharp knife along the Y-axis direction, then controlling the first sharp knife to rotate clockwise along the YOZ plane with the tip of the first sharp knife as the origin, and finally moving the first sharp knife along the Z-axis direction so that the tip of the first sharp knife contacts the first honeycomb workpiece;

[0024] S1-2-2, controlling the first sharp knife to perform internal cutting on the first honeycomb workpiece;

[0025] S1-2-3, after the interpolation cutting is completed, the first sharp knife is returned to the position after the posture of the first sharp knife is adjusted in step S1-2-1, and then the first honeycomb workpiece is controlled to rotate 90° along the XOY plane;

[0026] S1-2-4, repeat steps S1-2-2 and S1-2-3 three times;

[0027] S1-2-5, removing the chips after the internal cutting to form the first honeycomb workpiece having the tapered hole;

[0028] Wherein: in step S1-2-1, the translation distance is L11 / 2 and the rotation angle is α2.

[0029] Furthermore, the step S1-3 includes the following steps:

[0030] S1-3-1, obtaining the first honeycomb workpiece having the cone-shaped hole formed by the internal cutting in step S1-2-5;

[0031] S1-3-2, adjusting the posture of the second sharp knife: placing the second sharp knife at point O2 above the center point O1 of the first surface of the first honeycomb workpiece, and translating the second sharp knife along the Y-axis direction, and then controlling the second sharp knife to rotate clockwise along the YOZ plane with the tip of the second sharp knife as the origin, and finally moving the second sharp knife along the Z-axis direction so that the tip of the second sharp knife contacts the first honeycomb workpiece;

[0032] S1-3-3, controlling the second sharp knife to perform external cutting on the first honeycomb workpiece having the cone-shaped hole;

[0033] S1-3-4, after the external cutting is completed, the second sharp knife is controlled to return to the position after the posture of the second sharp knife is adjusted in step S1-3-2, and then the first honeycomb workpiece with the cone-shaped hole is controlled to rotate 90° along the XOY plane;

[0034] S1-3-5, repeating step S1-3-3 and step S1-3-4 three times to form the cone tip;

[0035] Among them, in step S1-3-2, the translation distance is L1 / 2 and the rotation angle is α1.

[0036] Furthermore, the length and width of the upper surface of the frustum are both L21, the length and width of the lower surface of the frustum are L2, the height of the frustum is H2, the bottom plate width is B2, and the inclination angle is β1;

[0037] The second honeycomb workpiece has a length and a width of L2A and a height of H2;

[0038] The length and width of the upper surface of the frustum hole are both L22, the length and width of the lower surface of the frustum hole are both L23, and the inclination angle of the frustum hole is β2;

[0039] in:

[0040] .

[0041] Furthermore, the step S2 comprises the following steps:

[0042] S2-1, cutting the second honeycomb workpiece: controlling the second honeycomb workpiece to rotate, and sequentially cutting the six surfaces of the second honeycomb blank to form the second honeycomb workpiece having a length and a width of L2A and a height of H2;

[0043] S2-2, interpolation cutting of the second honeycomb workpiece: interpolation cutting is performed on the second honeycomb workpiece by adjusting the posture of the first forming knife and controlling the second honeycomb workpiece to rotate. After the interpolation cutting is completed, the chips after the interpolation cutting are removed to form the second honeycomb workpiece having the frustum hole;

[0044] S2-3, external cutting of the second honeycomb workpiece having the frustum hole: by adjusting the posture of the second forming knife and controlling the second honeycomb workpiece having the frustum hole to rotate, external cutting is performed on the second honeycomb workpiece having the frustum hole to form the frustum;

[0045] Wherein: the forming knife part comprises: the first forming knife and the second forming knife, the first forming knife is used for internal cutting of the second honeycomb workpiece, and the second forming knife is used for external cutting of the second honeycomb workpiece.

[0046] Furthermore, the step S2-2 comprises the following steps:

[0047] S2-2-1, adjusting the posture of the first forming knife: placing the first forming knife at point O4 above the center point O3 of the second surface of the second honeycomb workpiece, and translating the first forming knife along the Y-axis direction, while controlling the first forming knife to rotate clockwise along the YOZ plane with the tip of the first forming knife as the origin, and finally moving the first forming knife along the Z-axis direction, so that the horizontal cutting edge of the first forming knife contacts the second honeycomb workpiece;

[0048] S2-2-2, controlling the first forming knife to perform internal cutting on the second honeycomb workpiece;

[0049] S2-2-3, after the internal cutting is completed, the first forming knife is returned to the position after the posture of the first forming knife is adjusted in step S2-2-1, and then the second honeycomb workpiece is controlled to rotate 90° along the XOY plane;

[0050] S2-2-4, repeat steps S2-2-2 and S2-2-3 three times;

[0051] S2-2-5, removing the chips after the internal cutting to form the second honeycomb workpiece having the frustum hole;

[0052] Wherein: in step S2-2-1, the translation distance is L23 / 2 and the rotation angle is β2.

[0053] Furthermore, the step S2-3 includes the following steps:

[0054] S2-3-1, obtaining the second honeycomb workpiece having the frustum hole formed by the internal cutting in step S2-2-5;

[0055] S2-3-2, adjusting the posture of the second forming knife: placing the second forming knife at point O4 above the center point O3 of the second surface of the second honeycomb workpiece, and translating the second forming knife along the Y-axis direction, and then controlling the second forming knife to rotate clockwise along the YOZ plane with the tip of the second forming knife as the origin, and finally moving the second forming knife along the Z-axis direction so that the horizontal cutting edge of the second forming knife contacts the second honeycomb workpiece;

[0056] S2-3-3, controlling the second forming knife to perform external cutting on the second honeycomb workpiece having the frustum hole;

[0057] S2-3-4, after the external cutting is completed, the second forming knife is controlled to return to the position after the posture of the second forming knife is adjusted in step S2-3-2, and then the second honeycomb workpiece having the frustum hole is controlled to rotate 90° along the XOY plane;

[0058] S2-3-5, repeating step S2-3-3 and step S2-3-4 three times to form the frustum;

[0059] Wherein: in step S2-3-2, the translation distance is L2 / 2 and the rotation angle is β1.

[0060] Further, in step S3, the length and width of the lower surface of the absorbing angle pyramid are both L3, the height of the absorbing angle pyramid is H3, the bottom plate width is B3, and the bevel angle is γ;

[0061] The length and width of the lower surface of the wave-absorbing pyramid hole are both L31, and the height of the wave-absorbing pyramid hole is H31;

[0062] in:

[0063] .

[0064] Furthermore, in step S3, the lower surface of the cone tip obtained in step S1 is brought into contact with the upper surface of the frustum in step S2 to form the absorbing angle pyramid.

[0065] Further, in step S4, the lower surface of the absorbing angle pyramid obtained in step S3 is brought into contact with the upper surface of the substrate, and a plurality of the absorbing angle pyramids are placed in a manner as follows: Matrix arrangement to form a The absorbing angle pyramid matrix is ​​composed of the absorbing angle pyramids.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] Compared with the existing method of splicing four triangular honeycomb panels, the processing method of first processing the cone tip and the frustum and then splicing the cone tip and the frustum to form the wave-absorbing corner cone is different from that of the conventional method of splicing four triangular honeycomb panels. Since the cone tip is a four-sided pyramid structure with a top, and the wave-absorbing corner cone is prepared by honeycomb material, there will always be honeycomb side walls connected except for the honeycomb hole at the highest point. The wave-absorbing corner cone formed by this processing method will not have a large area of ​​honeycomb material falling off at the top, thereby ensuring the integrity of the top of the wave-absorbing corner cone and avoiding the falling off of the top, so as to improve the qualified rate of the wave-absorbing corner cone processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0069] Figure 1 This is the effect diagram of the processing of the wave-absorbing pyramid in the prior art;

[0070] Figure 2 It is a flow chart of the method for processing wave-absorbing pyramids based on honeycomb materials of the present invention;

[0071] Figure 3 This is a rendering of the wave-absorbing pyramid processing based on honeycomb material of the present invention;

[0072] Figure 4 It is a schematic diagram of the cross-sectional structure of the cone tip of the present invention;

[0073] Figure 5 is a flow chart of step S1 of the present invention;

[0074] Figure 6 This is a diagram showing the effect of the cone tip processing in step S1 of the present invention;

[0075] Figure 7 is a flow chart of step S1-2 of the present invention;

[0076] Figure 8 This is a diagram showing the effect of the cone tip processing in step S1-2 of the present invention;

[0077] Fig. 9 is a flow chart of steps S1-3 of the present invention;

[0078] Fig.10 This is a diagram showing the effect of the cone tip processing in step S1-3 of the present invention;

[0079] Fig.11 It is a schematic diagram of the cross-sectional structure of the frustum of the present invention;

[0080] Fig.12 is a flow chart of step S2 of the present invention;

[0081] Fig.13 This is a diagram showing the effect of the frustum processing in step S2 of the present invention;

[0082] Fig.14 is a flow chart of step S2-2 of the present invention;

[0083] Fig.15 This is a diagram showing the effect of frustum processing in step S2-2 of the present invention;

[0084] Fig.16 is a flow chart of step S2-3 of the present invention;

[0085] Fig.17 This is a diagram showing the effect of frustum processing in step S2-3 of the present invention;

[0086] Fig.18 is a schematic diagram of the cross-sectional structure of the wave-absorbing pyramid of the present invention;

[0087] Fig.19 It is a structural schematic diagram of the ultrasonic cutting mechanism of the present invention.

[0088] In the figure: 1, cone tip; 101, first honeycomb blank; 102, first honeycomb workpiece; 103, cone tip hole; 2, frustum; 201, second honeycomb blank; 202, second honeycomb workpiece; 203, frustum hole; 3, wave-absorbing angle cone; 301, wave-absorbing angle cone hole; 4, wave-absorbing angle cone matrix; 5, substrate; 6, first sharp knife; 7, second sharp knife; 8, first forming knife; 9, second forming knife; 10, ultrasonic cutting mechanism; 11, rotary platform; 12, cutting actuator; 13, amplitude transformer; 14, piezoelectric transducer; 15, driving member. DETAILED DESCRIPTION

[0089] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0090] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "base plate width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0091] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] like Figures 2 to 19 As shown in FIG. 1 , it is the best embodiment of the present invention. The wave absorbing pyramid processing method based on honeycomb material in this embodiment comprises the following steps:

[0093] S1, processing the tip 1 of the wave absorbing corner pyramid 3: by adjusting the posture of the sharp knife portion and controlling the first honeycomb blank 101 to rotate, the first honeycomb blank 101 is sequentially cut internally and externally to form the tip 1;

[0094] S2, processing of the truncated cone 2 of the wave absorbing pyramid 3: by adjusting the posture of the forming knife portion and controlling the rotation of the second honeycomb blank 201, the second honeycomb blank 201 is sequentially interpolated and interpolated to form the truncated cone 2;

[0095] S3, processing of the wave absorbing corner cone 3: obtaining the cone tip 1 in step S1 and the frustum 2 in step S2, and splicing the obtained cone tip 1 and frustum 2 to form the wave absorbing corner cone 3;

[0096] S4, processing of wave absorbing pyramid matrix 4: obtaining the wave absorbing pyramid 3 in step S3, and splicing a plurality of wave absorbing pyramids 3 with substrate 5 to form a wave absorbing pyramid matrix 4 having The number of rows of the absorbing angle pyramids 3 on the absorbing angle pyramid matrix 4 is , the number of columns is Therefore, the processing method of first processing the cone tip 1 and the cone 2 and then splicing the cone tip 1 and the cone 2 to form the wave-absorbing corner cone 3 is compared with the existing method of splicing four triangular honeycomb panels. Since the cone tip 1 is a four-sided pyramid structure with a top, and the wave-absorbing corner cone 3 is prepared by honeycomb material, except for the honeycomb hole at the highest point, there will always be honeycomb side walls connected. The wave-absorbing corner cone 3 processed by this method will not have a large area of ​​honeycomb material at the top. Shedding, thereby ensuring the integrity of the top of the wave-absorbing corner cone 3, can prevent the top from shedding, so as to improve the qualified rate of the processing of the wave-absorbing corner cone 3.

[0097] In other words, due to the discontinuous characteristics of the honeycomb material, the tops of the four triangular honeycomb panels are very likely to fall off from the matrix in the existing processing method (due to the discontinuous characteristics of the honeycomb material, the top of each triangular honeycomb panel will fall off, and the four panels have inconsistent falling shapes, which will cause the top of the wave-absorbing corner cone 3 to fall off after processing, and due to the inconsistent falling before splicing, the falling after splicing is often large, and at the same time, the falling shape after splicing is difficult to control), resulting in the incomplete wave-absorbing corner cone 3 (that is, the top falls off), while the present processing method will not cut the cone tip 1 (that is, the entire cone tip 1 entity will not be divided into several small block), so that, during processing, except for the honeycomb hole at the highest point, there will always be honeycomb side walls connected, and the absorbing corner cone 3 formed by processing in this way will not have a large area of ​​honeycomb material falling off at the top (that is, only due to the discontinuous characteristics of the honeycomb material, if the highest point is a honeycomb material entity, there will inevitably be a top, if the highest point is a honeycomb hole of the honeycomb material (the honeycomb hole is very small relative to the size of the entire absorbing corner cone 3), it will only cause a little falling off at the highest point, which can be ignored), thereby ensuring the integrity of the top of the absorbing corner cone 3, being able to avoid the falling off of the top, so as to improve the qualified rate of the processing of the absorbing corner cone 3.

[0098] It should be noted that plunge cutting is a method of cutting by inserting a sharp knife from the side of the workpiece into the workpiece entity, which can improve the cutting speed and efficiency, reduce the cutting distance and the wear of the sharp knife, and improve the processing quality; internal plunge cutting means: after plunge cutting, the inside is the chips, and the outside is the workpiece required after cutting; external plunge cutting means: after plunge cutting, the inside is the workpiece required after cutting, and the outside is the chips.

[0099] In this embodiment, in step S1, the length and width of the lower surface of the cone tip 1 are both L1, the height of the cone tip 1 is H1, the bottom plate width is B1, and the inclination angle is α1;

[0100] The length and width of the first honeycomb workpiece 102 are both L1A, and the height is H1A;

[0101] The length and width of the lower surface of the cone tip hole 103 are both L11, the height of the cone tip hole 103 is H11, and the inclination angle is α2;

[0102] in:

[0103] ;

[0104] Step S1 includes the following steps:

[0105] S1-1, cutting the first honeycomb workpiece 102: controlling the first honeycomb blank 101 to rotate, and sequentially cutting the six surfaces of the first honeycomb blank 101 to form a first honeycomb workpiece 102 with a length and width of L1A and a height of H1A;

[0106] S1-2, interpolation cutting of the first honeycomb workpiece 102: interpolation cutting is performed on the first honeycomb workpiece 102 by adjusting the posture of the first sharp knife 6 and controlling the first honeycomb workpiece 102 to rotate. After the interpolation cutting is completed, the chips after the interpolation cutting are removed to form the first honeycomb workpiece 102 with the tapered hole 103;

[0107] S1-3, external cutting of the first honeycomb workpiece 102 with the cone tip hole 103: by adjusting the posture of the second sharp knife 7 and controlling the first honeycomb workpiece 102 with the cone tip hole 103 to rotate, the first honeycomb workpiece 102 with the cone tip hole 103 is externally cut to form a cone tip 1;

[0108] The sharp knife portion includes a first sharp knife 6 and a second sharp knife 7. The first sharp knife 6 is used for internal cutting of the first honeycomb workpiece 102, and the second sharp knife 7 is used for external cutting of the first honeycomb workpiece 102.

[0109] Step S1-2 includes the following steps:

[0110] S1-2-1, adjusting the posture of the first sharp knife 6: placing the first sharp knife 6 at point O2 above the center point O1 of the first surface of the first honeycomb workpiece 102, and translating the first sharp knife 6 along the Y-axis direction, then controlling the first sharp knife 6 to rotate clockwise along the YOZ plane with the tip of the first sharp knife 6 as the origin, and finally moving the first sharp knife 6 along the Z-axis direction so that the tip of the first sharp knife 6 contacts the first honeycomb workpiece 102;

[0111] S1-2-2, controlling the first sharp knife 6 to perform internal cutting on the first honeycomb workpiece 102;

[0112] S1-2-3, after the internal cutting is completed, the first sharp knife 6 is returned to the position after the posture of the first sharp knife 6 is adjusted in step S1-2-1, and then the first honeycomb workpiece 102 is controlled to rotate 90° along the XOY plane;

[0113] S1-2-4, repeat steps S1-2-2 and S1-2-3 three times;

[0114] S1-2-5, removing the chips after the internal cutting to form a first honeycomb workpiece 102 having a tapered hole 103;

[0115] Wherein: in step S1-2-1, the translation distance is L11 / 2, and the rotation angle is α2;

[0116] Step S1-3 includes the following steps:

[0117] S1-3-1, obtaining the first honeycomb workpiece 102 having a tapered hole 103 formed by the internal cutting in step S1-2-5;

[0118] S1-3-2, adjusting the posture of the second sharp knife 7: placing the second sharp knife 7 at point O2 above the center point O1 of the first surface of the first honeycomb workpiece 102, and translating the second sharp knife 7 along the Y-axis direction, and then controlling the second sharp knife 7 to rotate clockwise along the YOZ plane with the tip of the second sharp knife 7 as the origin, and finally moving the second sharp knife 7 along the Z-axis direction, so that the tip of the second sharp knife 7 contacts the first honeycomb workpiece 102;

[0119] S1-3-3, controlling the second sharp knife 7 to perform external cutting on the first honeycomb workpiece 102 having the tapered hole 103;

[0120] S1-3-4, after the external cutting is completed, the second sharp knife 7 is controlled to return to the position after the posture of the second sharp knife 7 is adjusted in step S1-3-2, and then the first honeycomb workpiece 102 with the cone-shaped hole 103 is controlled to rotate 90° along the XOY plane;

[0121] S1-3-5, repeating steps S1-3-3 and S1-3-4 three times to form a cone tip 1;

[0122] Among them, in step S1-3-2, the translation distance is L1 / 2 and the rotation angle is α1.

[0123] It should be noted that: 1. Figure 8 As shown, the cross-sectional shape of the XOZ surface of the first sharp knife 6 matches the cross-sectional shape of the inner wall of the cone tip 1 hole;

[0124] 2. If Fig. 9 As shown, the cross-sectional shape of the second sharp knife 7XOZ surface matches the cross-sectional shape of the side wall of the cone tip 1;

[0125] 3. The first surface refers to: the lower surface of the first honeycomb workpiece 102 (that is, during processing, the cone tip 1 is placed inverted, with the top of the cone tip 1 placed at the bottom, and during splicing, the top of the cone tip 1 is placed at the top);

[0126] 4. The inverted processing method (i.e., the top of the cone tip 1 is placed at the bottom) can, on the one hand, facilitate the cutting operation of the first sharp knife 6 and the second sharp knife 7 (if the top of the cone tip 1 is placed at the top, the first sharp knife 6 and the second sharp knife 7 are difficult to set and not easy to move up and down for cutting). On the other hand, the top of the tip processed by this method will not have quality problems due to the setting method of the sharp knife (i.e., if the top of the cone tip 1 is placed at the top, the first sharp knife 6 and the second sharp knife 7 will inevitably face the tip upwards, and the tip is connected to the driving structure, so the tip is not sharp but a plane).

[0127] In this embodiment, in step S2, the length and width of the upper surface of the frustum 2 are both L21, the length and width of the lower surface of the frustum 2 are L2, the height of the frustum 2 is H2, the bottom plate width is B2, and the inclination angle is β1;

[0128] The second honeycomb workpiece 202 has a length and a width of L2A and a height of H2;

[0129] The length and width of the upper surface of the frustum hole 203 are both L22, the length and width of the lower surface of the frustum hole 203 are both L23, and the inclination angle of the frustum hole 203 is β2;

[0130] in:

[0131] ;

[0132] Step S2 includes the following steps:

[0133] S2-1, cutting the second honeycomb workpiece 202: controlling the second honeycomb workpiece 202 to rotate, and sequentially cutting the six surfaces of the second honeycomb blank 201 to form a second honeycomb workpiece 202 with a length and width of L2A and a height of H2;

[0134] S2-2, interpolation cutting of the second honeycomb workpiece 202: interpolation cutting is performed on the second honeycomb workpiece 202 by adjusting the posture of the first forming knife 8 and controlling the second honeycomb workpiece 202 to rotate. After the interpolation cutting is completed, the chips after the interpolation cutting are removed to form the second honeycomb workpiece 202 with the frustum hole 203;

[0135] S2-3, external cutting of the second honeycomb workpiece 202 with the frustum hole 203: by adjusting the posture of the second forming knife 9 and controlling the second honeycomb workpiece 202 with the frustum hole 203 to rotate, the second honeycomb workpiece 202 with the frustum hole 203 is externally cut to form a frustum 2;

[0136] Wherein: the forming knife part comprises: a first forming knife 8 and a second forming knife 9, the first forming knife 8 is used for internal cutting of the second honeycomb workpiece 202, and the second forming knife 9 is used for external cutting of the second honeycomb workpiece 202;

[0137] Step S2-2 includes the following steps:

[0138] S2-2-1, adjusting the posture of the first forming knife 8: placing the first forming knife 8 at point O4 above the center point O3 of the second surface of the second honeycomb workpiece 202, and translating the first forming knife 8 along the Y-axis direction, controlling the first forming knife 8 to rotate clockwise along the YOZ plane with the tip of the first forming knife 8 as the origin, and finally moving the first forming knife 8 along the Z-axis direction, so that the horizontal cutting edge of the first forming knife 8 contacts the second honeycomb workpiece 202;

[0139] S2-2-2, controlling the first forming knife 8 to perform internal cutting on the second honeycomb workpiece 202;

[0140] S2-2-3, after the internal cutting is completed, the first forming knife 8 is returned to the position after the posture of the first forming knife 8 is adjusted in step S2-2-1, and then the second honeycomb workpiece 202 is controlled to rotate 90° along the XOY plane;

[0141] S2-2-4, repeat steps S2-2-2 and S2-2-3 three times;

[0142] S2-2-5, removing the chips after the internal cutting to form a second honeycomb workpiece 202 having a frustum hole 203;

[0143] Wherein: in step S2-2-1, the translation distance is L23 / 2, and the rotation angle is β2;

[0144] Step S2-3 includes the following steps:

[0145] S2-3-1, obtaining a second honeycomb workpiece 202 having a frustum hole 203 formed by internal cutting in step S2-2-5;

[0146] S2-3-2, adjusting the posture of the second forming knife 9: placing the second forming knife 9 at point O4 above the center point O3 of the second surface of the second honeycomb workpiece 202, and translating the second forming knife 9 along the Y-axis direction, and then controlling the second forming knife 9 to rotate clockwise along the YOZ plane with the tip of the second forming knife 9 as the origin, and finally moving the second forming knife 9 along the Z-axis direction, so that the horizontal cutting edge of the second forming knife 9 contacts the second honeycomb workpiece 202;

[0147] S2-3-3, controlling the second forming knife 9 to perform external cutting on the second honeycomb workpiece 202 having the frustum hole 203;

[0148] S2-3-4, after the external cutting is completed, the second forming knife 9 is controlled to return to the position after the posture of the second forming knife 9 is adjusted in step S2-3-2, and then the second honeycomb workpiece 202 with the frustum hole 203 is controlled to rotate 90° along the XOY plane;

[0149] S2-3-5, repeating step S2-3-3 and step S2-3-4 three times to form a frustum 2;

[0150] Wherein: in step S2-3-2, the translation distance is L2 / 2 and the rotation angle is β1.

[0151] In this embodiment, in step S3, the length and width of the lower surface of the absorbing angle pyramid 3 are both L3, the height of the absorbing angle pyramid 3 is H3, the bottom plate width is B3, and the bevel angle is γ;

[0152] It should be noted that: 1. Fig.15 As shown, the cross-sectional shape of the XOZ surface of the first forming knife 8 matches the cross-sectional shape of the inner wall of the hole of the frustum 2;

[0153] 2. If Fig.16 As shown, the cross-sectional shape of the second forming knife 9XOZ surface matches the cross-sectional shape of the side wall of the frustum 2;

[0154] 3. The second surface refers to: the lower surface of the second honeycomb workpiece 202 (that is, during processing, the frustum 2 is placed inverted, with the top of the frustum 2 placed at the bottom, and during splicing, the top of the frustum 2 is placed at the top);

[0155] 4. In an inverted processing method (i.e., the top of the cone tip is placed at the bottom), the first forming knife 8 and the second forming knife 9 are both arranged in an inverted manner (i.e., the size above the first forming knife 8 and the second forming knife 9 is long, and the size below is short). In this way, after cutting, the removal of the first forming knife 8 and the second forming knife 9 will not damage other positions of the frustum 2 entity, thereby ensuring the qualified rate of the frustum 2 formed by cutting, and further ensuring the qualified rate of the absorbing corner cone 3.

[0156] The length and width of the lower surface of the wave absorbing pyramid hole 301 are both L31, and the height of the wave absorbing pyramid hole 301 is H31;

[0157] in:

[0158] ;

[0159] In step S3, the lower surface of the cone tip 1 obtained in step S1 is abutted against the upper surface of the frustum 2 obtained in step S2 to form an absorbing corner cone 3. Specifically, when When the wave absorbing corner cone 3 with a double-tapered inner hole is formed, the damage of the honeycomb material at the top of the cone tip 1 is avoided, and the wave absorbing performance of the corner cone is improved.

[0160] In this embodiment, in step S4, the lower surface of the absorbing corner pyramid 3 obtained in step S3 is brought into contact with the upper surface of the substrate 5, and the plurality of absorbing corner pyramids 3 are arranged in accordance with Matrix arrangement to form a An absorbing corner pyramid matrix 4 having absorbing corner pyramids 3.

[0161] For example, in the splicing process of the wave absorbing corner pyramid 3 and the wave absorbing corner pyramid 3 matrix, the splicing can be achieved by gluing the adhesion points.

[0162] It should be noted that: 1. During the posture adjustment process of the first sharp knife 6, the second sharp knife 7, the first forming knife 8 and the second forming knife 9, the first sharp knife 6 and the second sharp knife 7 are not in contact with the first honeycomb workpiece 102 during the rotation process of the second honeycomb workpiece 202, and the first forming knife 8 and the second forming knife 9 are not in contact with the second honeycomb workpiece 202 during the rotation process, the purpose is to ensure that the first sharp knife 6 and the second sharp knife 7 will not scratch the first honeycomb workpiece 102, so as to ensure the processing quality of the cone tip 1, the first forming knife 8 and the second forming knife 9 will not scratch the second honeycomb workpiece 202, so as to ensure the processing quality of the frustum 2, and finally ensure the qualified rate of the wave absorbing angle cone 3;

[0163] 2. If Fig.19 As shown, the processing of the cone tip 1 and the cone 2 is performed by an ultrasonic cutting mechanism 10, which includes a rotary platform 11 and a cutting actuator 12. The rotary platform 11 is used to place the first honeycomb workpiece 102 and the second honeycomb workpiece 202 to be processed, and the rotary platform 11 has a built-in rotating member (not shown in the figure, for example, a motor) for controlling the rotation of the first honeycomb workpiece 102 and the second honeycomb workpiece 202. The cutting actuator 12 includes an horn 13, a piezoelectric transducer 14, and a driving member 15 (for example, the driving member 15 A six-degree-of-freedom robot is used. The first sharp knife 6, the second sharp knife 7, the first forming knife 8, and the second forming knife 9 are connected to the output end of the amplitude transformer 13 (which can be replaced according to processing requirements). The input end of the amplitude transformer 13 is connected to the piezoelectric transducer 14. The amplitude transformer 13 and the piezoelectric transducer 14 are both connected to the driving member 15. The processing of the cone tip 1 or the cone 2 is achieved through the mutual cooperation of the driving member 15, the piezoelectric transducer 14, the amplitude transformer 13, and the sharp knives (the first sharp knife 6, the second sharp knife 7, the first forming knife 8, and the second forming knife 9).

[0164] In summary, the present invention processes the cone tip 1 and the cone 2 first, and then splices the cone tip 1 and the cone 2 to form the wave-absorbing corner cone 3. Compared with the existing method of splicing four triangular honeycomb panels, the cone tip 1 is a four-sided pyramid structure with a top, and the wave-absorbing corner cone 3 is prepared by honeycomb material. Except for the honeycomb hole at the highest point, there are always honeycomb side walls connected. The wave-absorbing corner cone 3 processed by this method will not have a large area of ​​honeycomb material at the top. Shedding, thereby ensuring the integrity of the top of the wave-absorbing corner cone 3, can prevent the top from shedding, so as to improve the qualified rate of the processing of the wave-absorbing corner cone 3.

[0165] The above description is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A method for processing microwave absorbing pyramids based on honeycomb materials, characterized in that: The following steps are involved: S1, processing the cone tip (1) of the wave-absorbing corner cone (3): by adjusting the posture of the sharp knife portion and controlling the first honeycomb blank (101) to rotate, the first honeycomb blank (101) is sequentially subjected to inner cutting and outer cutting to form the cone tip (1); S2, processing the truncated cone (2) of the wave-absorbing corner pyramid (3): by adjusting the posture of the forming knife portion and controlling the rotation of the second honeycomb blank (201), the second honeycomb blank (201) is sequentially interpolated and interpolated to form the truncated cone (2); S3, processing the wave-absorbing corner cone (3): obtaining the cone tip (1) in step S1 and the frustum (2) in step S2, and splicing the obtained cone tip (1) and the frustum (2) to form the wave-absorbing corner cone (3); S4, processing of the wave absorbing angle pyramid matrix (4): obtaining the wave absorbing angle pyramids (3) in step S3, and splicing a plurality of the wave absorbing angle pyramids (3) with a substrate (5) to form a wave absorbing angle pyramid matrix (4). The wave absorbing angle pyramid matrix (4) of the wave absorbing angle pyramids (3); Wherein: the number of rows of the wave absorbing angle pyramids (3) on the wave absorbing angle pyramid matrix (4) is , the number of columns is ; In step S1, the length and width of the lower surface of the cone tip (1) are both L1, the height of the cone tip (1) is H1, the bottom plate width is B1, and the inclination angle is α1; The first honeycomb workpiece (102) has a length and a width of L1A and a height of H1A; The length and width of the lower surface of the cone tip hole (103) are both L11, the height of the cone tip hole (103) is H11, and the inclination angle is α2; in: ； The step S1 comprises the following steps: S1-1, cutting the first honeycomb workpiece (102): controlling the first honeycomb blank (101) to rotate, and sequentially cutting the six surfaces of the first honeycomb blank (101), so as to form the first honeycomb workpiece (102) having a length and width of L1A and a height of H1A; S1-2, interpolation cutting of the first honeycomb workpiece (102): interpolation cutting is performed on the first honeycomb workpiece (102) by adjusting the posture of the first sharp knife (6) and controlling the first honeycomb workpiece (102) to rotate. After the interpolation cutting is completed, the chips after the interpolation cutting are removed to form the first honeycomb workpiece (102) having the cone-shaped hole (103); S1-3, external cutting of the first honeycomb workpiece (102) having the cone-point hole (103): by adjusting the posture of the second sharp knife (7) and controlling the first honeycomb workpiece (102) having the cone-point hole (103) to rotate, external cutting is performed on the first honeycomb workpiece (102) having the cone-point hole (103) to form the cone tip (1); The sharp knife portion comprises: the first sharp knife (6) and the second sharp knife (7), the first sharp knife (6) being used for internal cutting of the first honeycomb workpiece (102), and the second sharp knife (7) being used for external cutting of the first honeycomb workpiece (102); In step S2, the length and width of the upper surface of the frustum (2) are both L21, the length and width of the lower surface of the frustum (2) are L2, the height of the frustum (2) is H2, the bottom plate width is B2, and the inclination angle is β1; The second honeycomb workpiece (202) has a length and a width of L2A and a height of H2; The length and width of the upper surface of the frustum hole (203) are both L22, the length and width of the lower surface of the frustum hole (203) are both L23, and the inclination angle of the frustum hole (203) is β2; in: ； The step S2 comprises the following steps: S2-1, cutting the second honeycomb workpiece (202): controlling the second honeycomb workpiece (202) to rotate, and sequentially cutting the six surfaces of the second honeycomb blank (201), so as to form the second honeycomb workpiece (202) having a length and a width of L2A and a height of H2; S2-2, interpolation cutting of the second honeycomb workpiece (202): interpolation cutting is performed on the second honeycomb workpiece (202) by adjusting the posture of the first forming knife (8) and controlling the second honeycomb workpiece (202) to rotate. After the interpolation cutting is completed, the chips after the interpolation cutting are removed to form the second honeycomb workpiece (202) having the frustum hole (203); S2-3, external cutting of the second honeycomb workpiece (202) having the frustum hole (203): by adjusting the posture of the second forming knife (9) and controlling the second honeycomb workpiece (202) having the frustum hole (203) to rotate, external cutting of the second honeycomb workpiece (202) having the frustum hole (203) is performed to form the frustum (2); The forming knife portion comprises: the first forming knife (8) and the second forming knife (9), the first forming knife (8) being used for internal cutting of the second honeycomb workpiece (202), and the second forming knife (9) being used for external cutting of the second honeycomb workpiece (202); Internal cutting means that after the cutting, the inside is the chips and the outside is the workpiece required after cutting; External plunge cutting means that after plunge cutting, the inside is the workpiece required after cutting, and the outside is the chips.

2. The method for processing wave absorbing pyramids based on honeycomb materials according to claim 1, characterized in that: The step S1-2 comprises the following steps: S1-2-1, adjusting the posture of the first sharp knife (6): placing the first sharp knife (6) at point O2 above the center point O1 of the first surface of the first honeycomb workpiece (102), and translating the first sharp knife (6) along the Y-axis direction, then controlling the first sharp knife (6) to rotate clockwise along the YOZ plane with the tip of the first sharp knife (6) as the origin, and finally moving the first sharp knife (6) along the Z-axis direction so that the tip of the first sharp knife (6) contacts the first honeycomb workpiece (102); S1-2-2, controlling the first sharp knife (6) to perform internal cutting on the first honeycomb workpiece (102); S1-2-3, after the internal cutting is completed, the first sharp knife (6) is returned to the position after the posture of the first sharp knife (6) is adjusted in step S1-2-1, and then the first honeycomb workpiece (102) is controlled to rotate 90° along the XOY plane; S1-2-4, repeat steps S1-2-2 and S1-2-3 three times; S1-2-5, removing the chips after the internal cutting to form the first honeycomb workpiece (102) having the cone-shaped hole (103); Wherein: in step S1-2-1, the translation distance is L11 / 2 and the rotation angle is α2.

3. The method for processing wave absorbing pyramids based on honeycomb materials according to claim 2, characterized in that: The step S1-3 comprises the following steps: S1-3-1, obtaining the first honeycomb workpiece (102) having the cone-point hole (103) formed by the internal cutting in step S1-2-5; S1-3-2, adjusting the posture of the second sharp knife (7): placing the second sharp knife (7) at point O2 above the center point O1 of the first surface of the first honeycomb workpiece (102), and translating the second sharp knife (7) along the Y-axis direction, then controlling the second sharp knife (7) to rotate clockwise along the YOZ plane with the tip of the second sharp knife (7) as the origin, and finally moving the second sharp knife (7) along the Z-axis direction so that the tip of the second sharp knife (7) contacts the first honeycomb workpiece (102); S1-3-3, controlling the second sharp knife (7) to perform external cutting on the first honeycomb workpiece (102) having the cone-shaped hole (103); S1-3-4, after the external cutting is completed, the second sharp knife (7) is controlled to return to the position after the posture of the second sharp knife (7) is adjusted in step S1-3-2, and then the first honeycomb workpiece (102) having the cone-shaped hole (103) is controlled to rotate 90° along the XOY plane; S1-3-5, repeating step S1-3-3 and step S1-3-4 three times to form the cone tip (1); Among them, in step S1-3-2, the translation distance is L1 / 2 and the rotation angle is α1.

4. The method for processing wave absorbing pyramids based on honeycomb materials according to claim 1, characterized in that: The step S2-2 comprises the following steps: S2-2-1, adjusting the posture of the first forming knife (8): placing the first forming knife (8) at point O4 above the center point O3 of the second surface of the second honeycomb workpiece (202), and translating the first forming knife (8) along the Y-axis direction, controlling the first forming knife (8) to rotate clockwise along the YOZ plane with the tip of the first forming knife (8) as the origin, and finally moving the first forming knife (8) along the Z-axis direction so that the horizontal cutting edge of the first forming knife (8) contacts the second honeycomb workpiece (202); S2-2-2, controlling the first forming knife (8) to perform internal cutting on the second honeycomb workpiece (202); S2-2-3, after the internal cutting is completed, the first forming knife (8) is returned to the position after the posture of the first forming knife (8) is adjusted in step S2-2-1, and then the second honeycomb workpiece (202) is controlled to rotate 90° along the XOY plane; S2-2-4, repeat steps S2-2-2 and S2-2-3 three times; S2-2-5, removing the chips after the internal cutting to form the second honeycomb workpiece (202) having the frustum hole (203); Wherein: in step S2-2-1, the translation distance is L23 / 2 and the rotation angle is β2.

5. The method for processing wave absorbing pyramids based on honeycomb materials according to claim 2, characterized in that: The step S2-3 comprises the following steps: S2-3-1, obtaining the second honeycomb workpiece (202) having the frustum hole (203) formed by the internal cutting in step S2-2-5; S2-3-2, adjusting the posture of the second forming knife (9): placing the second forming knife (9) at point O4 above the center point O3 of the second surface of the second honeycomb workpiece (202), and translating the second forming knife (9) along the Y-axis direction, then controlling the second forming knife (9) to rotate clockwise along the YOZ plane with the tip of the second forming knife (9) as the origin, and finally moving the second forming knife (9) along the Z-axis direction so that the horizontal cutting edge of the second forming knife (9) contacts the second honeycomb workpiece (202); S2-3-3, controlling the second forming knife (9) to perform external cutting on the second honeycomb workpiece (202) having the frustum hole (203); S2-3-4, after the external cutting is completed, the second forming knife (9) is controlled to return to the position after the posture of the second forming knife (9) is adjusted in step S2-3-2, and then the second honeycomb workpiece (202) having the frustum hole (203) is controlled to rotate 90° along the XOY plane; S2-3-5, repeating step S2-3-3 and step S2-3-4 three times to form the frustum (2); Wherein: in step S2-3-2, the translation distance is L2 / 2 and the rotation angle is β1.

6. The method for processing wave absorbing pyramids based on honeycomb materials according to claim 1, characterized in that: In step S3, the length and width of the lower surface of the absorbing angle pyramid (3) are both L3, the height of the absorbing angle pyramid (3) is H3, the bottom plate width is B3, and the bevel angle is γ; The length and width of the lower surface of the wave-absorbing pyramid hole (301) are both L31, and the height of the wave-absorbing pyramid hole (301) is H31; in: 。 7. The method for processing wave absorbing pyramids based on honeycomb materials according to claim 1, characterized in that: In step S3, the lower surface of the cone tip (1) obtained in step S1 is brought into contact with the upper surface of the frustum (2) obtained in step S2 to form the wave-absorbing corner cone (3).

8. The method for processing wave absorbing pyramids based on honeycomb materials according to claim 1, characterized in that: In step S4, the lower surface of the absorbing angle pyramid (3) obtained in step S3 is brought into contact with the upper surface of the substrate (5), and a plurality of the absorbing angle pyramids (3) are placed in a manner as follows: Matrix arrangement to form a The wave absorbing angle pyramid matrix (4) includes the wave absorbing angle pyramids (3).

Images