Manufacturing method of composite metal rubber

Abstract

The invention belongs to the technical field of metal rubber, and provides a composite metal rubber manufacturing method which comprises the following steps: determining the size and parameters of a to-be-prepared metal rubber substrate and the size and parameters of to-be-prepared metal rubber tube cloth according to the size and parameters of to-be-prepared metal rubber; corresponding metal wires are selected according to the size and parameters of the metal rubber substrate to be prepared, the selected metal wires are prepared into spiral coils, and then the spiral coils are wound layer by layer to form a blank substrate; selecting corresponding metal wires according to the size and parameters of the metal rubber tube cloth to be prepared, and weaving the selected metal wires into the tube cloth; covering and wrapping the blank substrate with the barrel cloth to form a metal rubber blank; and the metal rubber blank is put into a mold to be subjected to punch forming to form metal rubber. The metal rubber element with low rigidity and high energy consumption coefficient can be manufactured by taking the winding type metal rubber as a substrate and winding the drum cloth on the winding type metal rubber.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal rubber, and provides a manufacturing method for composite metal rubber. Background Art

[0002] Metal rubber is a new type of homogeneous elastic porous network material. Its structure is similar to the polymer structure of rubber. Through the forming process, while having the stiffness and damping characteristics similar to rubber, it also has special mechanical properties and vibration isolation properties that rubber cannot match. Moreover, the antioxidant and corrosion-resistant characteristics of its own metal materials ensure that it can work stably for a long time under extreme pressure, temperature difference and other harsh working conditions. According to the preparation method, it can be divided into wound metal rubber (Tangled-Metal Rubber, abbreviated as T-MR) and woven metal rubber (Wove-Metal Rubber, abbreviated as W-MR). The preparation process of traditional wound metal rubber can be roughly divided into the following steps: winding metal wires into spiral coils, stretching the spiral coils at a fixed distance, winding the spiral coils around a blank, and stamping and forming the metal rubber. Woven metal rubber can be further divided into wire woven type and spiral coil woven type. The preparation process of the wire woven type is to directly weave metal wire into a net and then perform stamping and forming. The preparation process of the spiral coil woven type is similar to that of wound metal rubber, except that in the preparation of the blank, the winding method is not used but the weaving method is adopted instead.

[0003] The mechanical properties of metal rubber prepared by two different processes are different: for T-MR, first, the metal wires need to be wound into long and continuous spiral coils, whose overall structure is similar to a spring. Then, under the condition that the pitch of the spiral coils is kept constant by equidistant stretching, the spiral coils are wound around a blank again. Finally, the wound blank is placed in a mold and cold-pressed to obtain a metal rubber specimen; for W-MR, the metal wires are directly woven into a metal wire cylinder net cloth by a circular loom. According to the size of the metal rubber to be prepared, the cylinder net cloth is cut and rolled into a blank, and finally placed in a mold for cold pressing to obtain a metal rubber specimen.

[0004] The microscopic structures inside the metal rubber formed by the above two different processes are significantly different, so their mechanical properties may also be different. Under the same relative density, T-MR has a greater stiffness and energy dissipation coefficient than W-MR. However, in engineering materials, lower stiffness and a greater energy dissipation coefficient are often required. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a manufacturing method for composite metal rubber. Using wound metal rubber as the base, a metal rubber element with low stiffness and high energy dissipation coefficient can be produced by winding a cylinder cloth around the wound metal rubber.

[0006] The technical solution of the present invention includes the following steps: According to the dimensions and parameters of the metal rubber to be prepared, determine the dimensions and parameters of the metal rubber base to be prepared and the dimensions and parameters of the metal rubber cylinder cloth to be prepared.

[0007] Select the corresponding metal wire according to the dimensions and parameters of the metal rubber base to be prepared, prepare the selected metal wire into a spiral coil, and then wind the spiral coil layer by layer to form a blank base.

[0008] Select the corresponding metal wire according to the dimensions and parameters of the metal rubber cylinder cloth to be prepared, and weave the selected metal wire into a cylinder cloth.

[0009] Cover and wrap the cylinder cloth on the blank base to form a metal rubber blank.

[0010] Put the metal rubber blank into a mold and stamp it into metal rubber.

[0011] Further, obtain the value of the winding ratio of the metal rubber to be prepared and the mass of the metal rubber to be prepared, and calculate the mass of the spiral coil and the mass of the cylinder cloth through the following formula: , is the winding ratio, is the mass of the spiral coil, in g, is the mass of the cylinder cloth, in g, is the mass of the metal rubber, in g.

[0012] Further, the preparation steps of the spiral coil include: Input the metal wire in a fixed direction, and then change the movement direction of the metal wire through the first force, so that the metal wire generates the first deformation.

[0013] Then apply a second force to the deformed metal wire, so that the metal wire generates a second deformation and bends.

[0014] Thus, it gradually becomes a spiral coil under the continuous input of the metal wire.

[0015] Further, by changing the angle of the second force on the metal wire and the planar distance between the first force application point and the second force application point of the metal wire, adjust the pitch of the spiral coil.

[0016] Further, adjust the linear distance between the second force application point of the metal wire and the center of the spiral coil to change the outer diameter size of the spiral coil.

[0017] Further, when the spiral coils are wound layer by layer, the included angle between adjacent two layers of spiral coils is between 80° and 100°.

[0018] The technical solution provided by the embodiment of the present invention has the following advantages compared with the prior art: According to the dimensions and parameters of the metal rubber to be prepared, the dimensions and parameters of the metal rubber base to be prepared and the dimensions and parameters of the metal rubber tube cloth to be prepared are determined; according to the dimensions and parameters of the metal rubber base to be prepared, the corresponding metal wires are selected, and the selected metal wires are prepared into spiral coils, and then the spiral coils are wound layer by layer to form a blank base; according to the dimensions and parameters of the metal rubber tube cloth to be prepared, the corresponding metal wires are selected, and the selected metal wires are woven into tube cloth; the tube cloth is covered and wrapped on the blank base to form a metal rubber blank; the metal rubber blank is put into a mold for stamping to form metal rubber. Compared with the prior art, the present invention uses the winding type metal rubber as the base, and winds the tube cloth on the winding type metal rubber, and can manufacture metal rubber components with low stiffness and high energy consumption coefficient.

[0019] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is the schematic diagram of the preparation of the spiral coil by the curve gauge type for one embodiment of the present invention; Figure 2 It is the schematic diagram of the winding angle of the spiral coil for one embodiment of the present invention; Figure 3 It is the schematic diagram of the mesoscopic structure of the tube cloth for one embodiment of the present invention; Figure 4 It is the physical diagram of the tube cloth for one embodiment of the present invention; Figure 5 It is the schematic diagram of the production principle of the metal rubber blank for one embodiment of the present invention; Figure 6 It is the schematic diagram of the structure of the metal rubber blank for one embodiment of the present invention; Figure 7 It is the physical diagram of the metal rubber blank for one embodiment of the present invention; Figure 8 It is the flowchart of the production of the metal rubber for one embodiment of the present invention; Figure 9 It is the physical diagram of the base blank for one embodiment of the present invention; Figure 10 It is the schematic diagram of the stamping die for one embodiment of the present invention.

[0022] Reference numerals: 1, wire reel; 2, wire guide plate; 3, cutting knife; 4, forming wire gauge; 5, radius wire gauge; 6, blank base; 7, tubular cloth; 8, mandrel; 9, metal rubber blank; 10, stamping die; 11, upper pressure head. Specific embodiments

[0023] The following will describe in detail a specific embodiment of the present invention in conjunction with the accompanying drawings. It should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the technical solutions of 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 should not be construed as a limitation of the present invention.

[0025] In the description of the embodiments of the present invention, unless otherwise specified, the meaning of "a plurality" refers to two or more.

[0026] As Figures 1 to 10 shown, the present invention provides a method for manufacturing composite metal rubber, including the following steps: According to the size and parameters of the prepared metal rubber, determine the size, parameters of the metal rubber base to be prepared, and the size, parameters of the metal rubber tubular cloth 7 to be prepared.

[0027] Specifically, according to the winding ratio value, the outer dimension and relative density of the prepared metal rubber, calculate the spiral coil mass and the tubular cloth 7 mass respectively. The formula is: , is the winding ratio, is the spiral coil mass, in g, is the tubular cloth mass, in g, is the metal rubber mass, in g.

[0028] Calculate the volume through the outer dimension, and calculate the mass according to the volume and density.

[0029] Furthermore, the elastic modulus and strength of the wire material will greatly affect the mechanical properties of the finished metal rubber. 304H stainless steel (07Cr19Ni10) is selected as the material for the metal rubber, and the wire diameter is from 0.08 mm to 0.2 mm. Table 1 shows the nominal chemical composition of 304H stainless steel, and Table 2 shows some physical properties of 304H stainless steel.

[0030] Table 1: Nominal Chemical Composition Table of 304H Stainless Steel

[0031] Table 2: Physical Property Table of 304H Stainless Steel

[0032] Select the corresponding wire according to the substrate size and parameters, prepare the selected wire into a spiral coil, and then wind the spiral coil layer by layer on the mandrel 8 through a wire rack to form a blank substrate.

[0033] The principle is as follows: Input the wire in a fixed direction, and then change the movement direction of the wire through the first force application, causing the wire to deform for the first time; then apply a second force to the deformed wire, causing the wire to deform and bend for the second time; thus, the wire gradually becomes a spiral coil under continuous input.

[0034] As Figure 1 shown, the specific preparation steps include: Clamp the wire through the wire feeding wheel 1, and then rotate the wire feeding wheel 1 to feed the wire into the wire guiding plate 2.

[0035] The wire guiding plate 2 fixes the movement direction of the wire to the forming structure.

[0036] The forming wire gauge 4 in the forming structure changes the movement direction of the wire, causing the wire to deform itself, and then it generates a second deformation when passing through the radius wire gauge 5.

[0037] Furthermore, by changing the angle of the second force application on the wire and the planar distance between the first force application point and the second force application point of the wire, adjust the pitch of the spiral coil, adjust the linear distance from the second force application point of the wire to the center of the spiral coil, and change the outer diameter size of the spiral coil.

[0038] Specifically: By changing the self-axis rotation angle of the radius wire gauge 5 and the planar distance between the radius wire gauge 5 and the forming wire gauge 4, adjust the pitch of the spiral coil. At the same time, by adjusting the extended length of the radius wire gauge 5, change the outer diameter size of the spiral coil. After the spiral coil is made, cut off the wire through the cutter 3.

[0039] Specifically, the angle between adjacent two layers of spiral coils on the mandrel 8 is between 80° and 100°, so that adjacent two layers of spiral coils are staggered with each other and have consistent performance.

[0040] Furthermore, the mandrel 8 is frustum-shaped, and the inclination angle of the mandrel 8 is between 4° and 6°.

[0041] Since the inside of the blank base is a chimeric structure formed by the interlocking of spiral coils with each other, it is required that when forming the spiral coils: First, ensure that the overall dimensions of the spiral coils are consistent, so that the internal structure of the formed blank base is uniform; Second, the prepared spiral coils should be as long as possible. It is best to use a single continuous spiral coil to wind the blank base. Compared with the series connection of multiple spiral coils, a single continuous spiral coil ensures the integrity and stability of the blank base, and the overall strength of the blank base is also higher without the series connection joints; Third, the method of preparing the spiral coils should not cause damage to the wire itself, ensuring the lifespan of the final blank base product; Fourth, the equipment for preparing the spiral coils should be able to flexibly adjust parameters to prepare spiral coils with different lengths, wire diameters and outer diameters.

[0042] Therefore, the curve gauge method is adopted for the preparation of spiral coils, which is coreless winding, as Figure 1 shown. The wire is fed into the wire guide plate 2 through the clamping rotation of the wire feeding wheel 1 to fix the moving direction of the wire to the forming position. The straight-forward wire will have its movement direction changed by the forming gauge 4, causing the wire itself to deform. It undergoes a second deformation when passing through the radius gauge 5. The two deformations of the wire when passing through the forming gauge 4 and the radius gauge 5 are arc-shaped. Therefore, under the continuous feeding of the whole wire, the wire will change its shape into a spiral coil. By moving the radius gauge 5 back and forth, the outer diameter size of the spiral coil can be changed; at the same time, by adjusting the self-axis rotation angle of the radius gauge 5 and the planar distance of the gauge relative to the forming gauge 4, the pitch of the spiral coil can be changed; after the feeding length reaches the required length of the spiral coil, the wire is cut off by the cutter 3. This preparation method has a fast winding speed, stable pitch control, an infinite theoretical preparation length, and will not cause damage to the wire itself.

[0043] For the blank substrate, it is prepared by the layer-by-layer forming method. The spiral coil needs to be wound layer by layer on the mandrel 8 with a certain tension. The angular velocity of the mandrel 8 rotating itself and the moving speed of the spiral coil wire frame moving left and right cooperate with each other. There is a certain angle θ between the latter layer and the former layer, which is the winding angle. Since the winding angle cannot be directly set by the winding machine, the moving speed of the wire frame moving back and forth left and right can be set through the control computer, so as to accurately control the winding angle. Suppose the motor speed n of the mandrel 8 of this winding machine is constantly 1 r / s, and the speed of the wire frame is controlled by setting the value of "wire diameter" p in the control panel. Here, the "wire diameter" refers to the distance that the wire frame moves when the mandrel 8 motor rotates one circle. Since the mandrel 8 motor n = 1 r / s, the wire diameter p can be equivalent to the moving speed V of the wire frame, that is, V = p. It is necessary to find the conversion relationship between the moving speed V of the wire frame and the winding angle θ.

[0044] Regarding the distances traveled by the spiral coil in the x-direction and y-direction when the mandrel 8 motor rotates one circle as a plane, the following can be obtained Figure 2 the schematic diagram of the winding angle of the spiral coil as shown. The distance C in the y-direction is the circumference of the mandrel 8. The motor takes 1 s to rotate one week. When the spiral coil travels a length of C in the y-direction, the distance traveled in the x-direction is the moving speed V of the wire frame. D is the outer diameter of the spiral coil itself. The red line represents the path that the spiral coil winds through when the wire frame moves forward, and the blue line represents the path that the spiral coil travels when the wire frame moves in the reverse direction. The two paths cross each other to form the winding angle θ. Therefore, the calculation formula of θ and the moving speed V of the wire frame is as follows: , The equal-pitch spiral coil is uniformly driven by the mandrel 8 to move left and right through the nozzle, so that the metal wires can be better fitted with each other. After layer-by-layer winding is completed, it is taken off the mandrel 8, and the preparation of the blank substrate is completed.

[0045] This winding method of the blank substrate will lose tension when winding to the end of the spiral coil, making the end unable to be naturally hooked with other spiral coils. After taking off the blank substrate, the end can be placed into the internal gap of the blank to avoid the blank itself generating burrs and affecting the structural stability. For the inconvenience of taking off the blank caused by friction, the mandrel 8 can be designed as a frustum with an inclination angle of 4° to 6° for replacement. The surface of the mandrel 8 should be as smooth as possible to facilitate taking off the blank. The blank substrate prepared by this process and equipment has a uniform external dimension, a uniform distribution of internal spiral coils, and an obvious winding angle.

[0046] Select the corresponding metal wire according to the size and parameters of the tubular cloth 7, and weave the selected metal wire into the tubular cloth 7 through a circular loom.

[0047] Specifically, the tubular cloth 7 is prepared by a wire weaving method, where the selected metal wire is directly woven through a circular loom. The formed metal tubular cloth 7 can be formed into various shapes by cutting and rolling, which is convenient for subsequent stamping and forming. The metal wire is hooked by the knitting machine needle through the porcelain eye. As the structure rotates and the needle moves up and down, the metal wire is pressed in and released in sequence, gradually forming the woven tubular cloth 7. Through the winding structure at the bottom, the tension is continuously maintained to remove the woven mesh from the needle, forming a long strip of metal wire tubular cloth 7. Figure 3 The microstructure of the woven tube cloth 7 is shown in the figure. Its main feature is the interlocking mesh structure. All the interlocking rings are hooked together. The microstructure of the interlocking rings is rectangular, which can suppress the internal deformation of a single ring. Figure 4 As shown, multiple interlocking rings connected by weaving can move relative to each other under a certain load, which provides special flexibility. This allows the interlocking rings woven together to control deformation within elastic deformation without reaching plastic deformation, which means that this interlocking mesh structure can recover or even rebound to its original shape after unloading the pressure. Because the position of each needle in the needle cylinder of this circular loom is fixed and cannot be adjusted, its diameter density is a fixed value. The height of the needle press triangle can be adjusted through the control panel of the cabinet to change the minimum height to which the needle can be lowered during weaving. According to the physical principles of circular loom weaving, the height of the needle press triangle can adjust the weft density of the woven mesh, and the higher the needle press triangle, the lower the weft density.

[0048] Tube cloth according to quality The required length of cloth is calculated according to the proportion and cut by a cutting machine to obtain the required tube cloth.

[0049] The tubular cloth 7 is covered and wrapped on the blank base to form the metal rubber blank 9.

[0050] Specifically, the prepared woven tube cloth 7 is covered on the base of the blank and rolled and wrapped, as shown in FIG. Figure 5 As shown, the interior is the base of the blank, and the exterior is the tubular cloth 7. It's important to note that the width of the outer tubular cloth 7 is 5% to 10% greater than the length of the spirally wound base. During wrapping, the base should be centered, so that both ends of the tubular cloth 7 extend the same length beyond the central spirally wound base. Furthermore, since there's no way to secure the tubular cloth 7 after wrapping, slightly increased tension can be applied during wrapping to prevent the tubular cloth 7 from rebounding and losing its shape after the metal rubber blank 9 is removed from the mandrel 8.

[0051] The metal rubber blank 9 is placed in a mold and punched into a metal rubber.

[0052] The present invention uses the wound metal rubber as a base and wraps the wound metal rubber with a cylindrical cloth 7 to produce a metal rubber element with low stiffness and high energy dissipation coefficient.

[0053] Put the prepared metal rubber blank 9 into the mold for stamping. When putting the metal rubber blank 9 into the mold, it is necessary to pay attention to whether the metal rubber blank 9 and the inner wall of the mold are squeezed to release the natural hooking state of the spiral coil, resulting in obvious misalignment and movement, so as to avoid affecting the internal uniformity of the metal rubber after molding. When rolling the metal rubber blank 9, it is necessary to pay attention to rolling it along the radial direction of the tube cloth 7, so that the weft direction of the tube cloth 7 is used as the molding direction. This is due to the physical properties of the weaving of the tube cloth 7. It has no rebound ability in the radial direction and can only rebound in the weft direction, so it can be stamped and formed. After rolling, the outermost end of the tube cloth 7 is easy to spread out and difficult to fix. The end of the tube cloth 7 can be extended in the weft direction and wrapped into the inner layer of the roll. As Figure 6 As shown in the figure, it is a schematic diagram of the cross section of the finished metal rubber product. Figure 7 The figure shows the appearance of the finished metal rubber product.

[0054] The load causes the blank to plastically deform, and the internal stress generated by plastic deformation accumulates inside. If the load is removed, the internal stress will cause the blank to rebound, and the formed size cannot be achieved. In order to achieve the final geometric shape of the metal rubber, a multi-step stamping method can be used to reduce residual stress. That is, after loading a certain number of steps, the load is removed and repeated once. When the second loading reaches the same number of steps, the pressure is maintained for a period of time before unloading. Then, the above steps are repeated while gradually increasing the number of steps until the predetermined size is achieved. This method can minimize the rebound of the metal rubber after stamping without using heat treatment.

[0055] like Figure 8 The figure shows the overall preparation flow chart of metal rubber.

[0056] Example: The dimensions of the metal rubber after molding are determined to be 10mm×5mm×8.5mm (outer diameter×inner diameter×height), and the relative density is 0.15g / mm 2 , braiding ratio The diameter of the metal wire is 0.08mm, the outer diameter of the spiral is 0.8mm, and the diameter of the metal wire wrapped with the braided tube cloth 7 is 0.08mm. Combining the size, relative density and winding ratio, the mass of the spiral winding of the base blank is calculated. Figure 9 The spiral coils are wound as shown. A base blank 6 is prepared using a layer-by-layer forming method. In this trial, the spiral coils on adjacent sides of the base blank 6 are wound at a 95° angle. To facilitate plastic deformation during stamping, the base blank can be made longer, with a winding width of 12 mm. During winding, the spiral coils of the subsequent layer interlock with the previous layer, preventing slippage, to produce the base blank 6.

[0057] Then, a long metal wire mesh tube cloth 7 is prepared by manual threading using a braiding machine, such as Figure 10As shown, the required mass of the cylinder cloth 7 is calculated according to the relative density and the winding ratio, the length to be cut is calculated and cut using a cutting machine. The cut cylinder cloth 7 is rolled and covered on the surface of the blank substrate 6, thus completing the preparation of the metal rubber blank 9. The prepared metal rubber blank 9 is removed and placed in a mold and stamped by the upper punch 11. For the metal rubber with a relative density of 0.15 g / mm 2 , the maximum punching force required is 355 N. The punching force required is not large, and its punching die 10 is a resin die made by 3D printing.

[0058] After stamping, a hollow cylindrical metal rubber sample is obtained. Each process parameter meets the established requirements. The formed metal rubber has a regular shape and no burrs. Then, multiple metal rubbers are prepared with different process parameters, and their shapes are basically stable. This shows that the automated preparation of metal rubber can be achieved through the above preparation and forming method and the equipment scheme used.

[0059] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including that element.

[0060] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described here.

Claims

1. A manufacturing method of composite metal rubber, characterized in that, It includes the following steps: According to the size and parameters of the metal rubber to be prepared, determine the size and parameters of the metal rubber base to be prepared and the size and parameters of the metal rubber tubular cloth to be prepared; Select the corresponding metal wire according to the size and parameters of the metal rubber base to be prepared, prepare the selected metal wire into a spiral coil, and then wind the spiral coil layer by layer to form a blank base; Select the corresponding metal wire according to the size and parameters of the metal rubber tubular cloth to be prepared, and braid the selected metal wire into a tubular cloth; Cover and wrap the tubular cloth on the blank base to form a metal rubber blank; Put the metal rubber blank into a mold and stamp it into metal rubber.

2. The manufacturing method of a composite metal rubber according to claim 1, characterized in that, Obtain the value of the winding ratio of the metal rubber to be prepared and the mass of the metal rubber to be prepared, and calculate the mass of the spiral coil and the mass of the tubular cloth through the following formula: ， is the winding ratio, is the mass of the spiral coil, in g, is the mass of the cylinder cloth, in g, is the mass of the metal rubber, in g.

3. The manufacturing method of a composite metal rubber as described in claim 1, characterized in that The preparation steps of the spiral coil include: Input the metal wire along a fixed direction, and then change the movement direction of the metal wire through the first force, so that the metal wire deforms for the first time; Apply a second force to the deformed metal wire, so that the metal wire deforms and bends for the second time; Thus, it gradually becomes a spiral coil under the continuous input of the metal wire.

4. The manufacturing method of a composite metal rubber according to claim 3, characterized in that, Adjust the pitch of the spiral coil by changing the angle of the second force on the metal wire and the planar distance between the first force application point and the second force application point of the metal wire.

5. The manufacturing method of a composite metal rubber according to claim 3, characterized in that, Adjust the linear distance between the second force application point of the metal wire and the center of the spiral coil to change the outer diameter size of the spiral coil.

6. The manufacturing method of a composite metal rubber according to claim 1, wherein When the spiral coils are wound layer by layer, the included angle between adjacent two layers of spiral coils is between 80° and 100°.

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