Electroplated polygonal beaded wire saw

Abstract

The present invention relates to the field of wire saw cutting, and in particular, to an electroplated polygonal beaded wire saw, comprising a plurality of beads, a plurality of spacers and a steel wire rope, wherein the plurality of beads and the plurality of spacers are alternately and coaxially sleeved on the steel wire rope; each bead is formed by axially stacking at least one primary working substrate; the primary working substrate is of a frustum-shaped structure having an axial orthographic projection contour line similar to a polygon, and the axial orthographic projection contour line of the primary working substrate is a closed structure formed by alternating a plurality of convex sections and a plurality of concave sections; a primary working substrate plated layer and a plurality of primary working substrate non-plated layers are arranged on the circumferential surface of the primary working substrate; diamond abrasive particles are arranged on the primary working substrate plated layer, and the primary working substrate non-plated layers are arranged at the larger-diameter end of the frustum-shaped primary working substrate. The present invention facilitates the bidirectional ordered arrangement of functional serrations, namely, macroscopic serrations in the axial direction and microscopic serrations in the circumferential direction, thereby enabling the implementation of a conformal structure and optimizing chip removal and cooling effects during bead operation.

Description

An electroplated polygonal beaded wire saw Technical Field

[0001] The invention relates to the field of wire saw cutting, in particular to an electroplated polygonal beaded wire saw. Background Art

[0002] The wire saw beads in the prior art are mainly manufactured by processes such as powder metallurgy, brazing, and electroplating. The outer peripheral surface of the working layer of the beads (containing diamond abrasives) has the characteristics of a cylindrical, truncated cone, a combination of multiple cylindrical sections, or a combination of multiple truncated cones, and the cross-section at any axial point is circular. The front end of the beads with a circular cross-section will push the cooling water like a plunger, breaking it up into atomized form, affecting the cooling and chip removal effect of the cooling water on the grinding surface of the beads. The beads with a circular cross-section are also prone to cross-cutting, resulting in uneven cutting surfaces of the workpiece and excessive parallelism of the processed workpiece. Since the formulation of the diamond abrasive working layer is subject to greater constraints, the life of the beads and the implementation of the wire saw rapid sawing process are greatly restricted.

[0003] To mitigate the above drawbacks, existing technologies use a surface-mount brazing process to manufacture beads. The diamond abrasive layer can also be arranged in an orderly manner, which can improve performance to a certain extent. However, the manufacturing process is relatively complex and the manufacturing cost is high. When using a surface-mount electroplating process to manufacture beads, the front end is easily impacted and the diameter wears out too quickly, forming a tapered front end, which affects the overall lifespan of the beads. When using an impregnated powder metallurgy process to manufacture beads, a difficult-to-grind formula can be used at the front end to alleviate the above problems. However, the manufacturing process is cumbersome and the manufacturing cost is increased. Polygonal beaded wire saw beads manufactured using powder metallurgy and brazing processes alleviate some of the above problems, but the processing technology of the polygonal bead's conformal structure is relatively complex and the manufacturing cost is high. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electroplated polygonal beaded wire saw to solve the above problems.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: an electroplated polygonal beaded wire saw, comprising: a plurality of beads, a plurality of spacers and a steel wire rope, wherein the plurality of beads and the plurality of spacers are alternately and coaxially sleeved on the steel wire rope; the beads are formed by axially stacking at least one main working base, the main working base is a truncated cone-shaped structure whose axial orthographic projection contour line is approximately polygonal, the axial orthographic projection contour line of the main working base is a closed structure formed by alternating multiple convex sections and multiple concave sections, a main working base coating layer and a plurality of main working base non-coating layers are provided on the circumferential surface of the main working base, diamond abrasives are provided on the main working base coating layer, and the main working base non-coating layer is provided at one end of the large diameter of the truncated cone-shaped main working base.

[0006] The beneficial effects of the present invention are as follows: a plurality of main working substrate non-coating layers are arranged on the circumferential surface of the truncated cone-shaped main working substrate, which is beneficial to ensure that when the beads are working, only part of the diamond abrasive grains at the large diameter (i.e., close to the truncated cone-shaped bottom surface of the substrate) close to each circumferential point of the substrate (i.e., any central angle) in the circumferential direction participate in grinding, and the probability of the diamond abrasive grains corresponding to the multiple convex sections of the contour line contacting (i.e., grinding) the workpiece is relatively greater than the diamond abrasive grains corresponding to the multiple concave sections of the contour line, so the contact area between the beads and the workpiece is greatly reduced. Compared with the existing technology, under the action of the same applied force, the working pressure of the diamond abrasive grains is high, thereby enhancing the engraving ability and improving the sharpness; on this basis, by adaptively adjusting the concentration of diamond abrasive grains on the main working substrate coating layer corresponding to the convex sections and concave sections on the contour line, it is beneficial to achieve the shape-preserving function of the bead polygon.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the main working substrate non-coated layers on the multiple beads are randomly staggered in azimuth at each axial point; the main working substrate coating layer is alternately provided with multiple main working substrate working segments and multiple main working substrate non-working segments in the circumferential direction of the side surface of the cone, and the main working substrate working segments and the main working substrate non-working segments are both strip structures, and the diamond abrasive single layer is radially arranged on the main working substrate working segment, and the circumferential line length of the main working substrate working segment corresponding to the convex segment on the axial positive projection contour line of the main working substrate is greater than the circumferential line length of the main working substrate working segment corresponding to the concave segment.

[0009] The beneficial effects of adopting the above further scheme are as follows: the structural setting of the working section of the main working substrate and the non-working section of the main working substrate can make the diamond abrasive grains on the working section of the main working substrate squeeze the workpiece corresponding to the adjacent non-working section of the main working substrate, realize mechanical crushing on a macro scale, and thus reduce the overall cutting load of the beads; the diamond abrasive grains participating in the work on the periphery of the main working substrate form a "micro-serrated" structure in the circumferential direction of the side of the frustum, realize micro-mechanical crushing of the workpiece, which is beneficial to reduce the processing load, cooling and chip removal, reduce diamond cutting heat, and improve the life of the beads; the non-working section of the main working substrate at the large diameter is prone to wear and grooves appear, and the random gap between it and the workpiece has better space for accommodating / removing chips, At the same time, it also serves as a water trough, with a short and smooth chip removal distance, which greatly reduces frictional heat and reduces the heat loss of diamond abrasives. At the same time, the proportion of cooling water being ineffectively pushed and atomized is greatly reduced, and the cooling water cools the working diamond abrasives faster, with a higher effective cooling rate, which is beneficial to improving the life of the beads; by adapting the circumferential line length of the working section of the main working substrate and the non-working section of the main working substrate, the number of diamond abrasives involved in the work is controlled, which is beneficial to reducing the processing load and the wire breakage rate of the wire saw; the multi-conical manner of the main working substrate forms an axial "macro-sawtooth" structure with large chip and water holding space, realizing an intermittent chip cutting mode, which is beneficial to improving sharpness; the single-layer diamond abrasive coating has a short manufacturing cycle, a simple process and low cost.

[0010] Furthermore, the linear length of the working segment of the main working substrate in the circumferential direction of the side surface of the cone is greater than or equal to 1 times the diamond abrasive particle size, and less than 2 times the diamond abrasive particle size, and the linear length of the non-working segment of the main working substrate in the circumferential direction of the side surface of the cone is greater than or equal to 0.2 times the diamond abrasive particle size, and less than 2 times the diamond abrasive particle size.

[0011] The beneficial effect of adopting the above further scheme is: by setting the circumferential length of each main working substrate working section to be different, the diamond abrasive particles are formed to have different supporting and protective effects, that is, the wear resistance is different, thereby achieving conformal wear and further achieving the conformal function.

[0012] Furthermore, when the beads are formed by axially stacking a plurality of the main working substrates, the non-plated layers of the main working substrates on the plurality of the main working substrates are arranged at the same azimuth angle.

[0013] The beneficial effect of adopting the above further scheme is that the non-coated layer azimuth angles of the main working substrates on multiple main working substrates of a single bead are the same, which is beneficial to increase the proportion of mechanical crushing of the workpiece and reduce the wear rate of the workpiece on the diamond abrasives.

[0014] Furthermore, a plurality of the main working substrate non-coated layers correspond one-to-one to a plurality of concave sections on the contour line, and the diamond abrasive concentration set on the main working substrate coating layer corresponding to the convex section is higher than the diamond abrasive concentration set on the main working substrate coating layer corresponding to the concave section, and the diamond abrasive concentration set on the main working substrate coating layer corresponding to the convex section is 1.2 to 2 times the diamond abrasive concentration set on the main working substrate coating layer corresponding to the concave section, and in the circumferential direction of the main working substrate coating layer, the diamond abrasive concentration gradually decreases or decreases in a step-by-step manner from the most convex point on the main working substrate coating layer corresponding to the convex section to the most concave point on the main working substrate coating layer corresponding to the concave section adjacent to the convex section.

[0015] The beneficial effect of adopting the above-mentioned further scheme is: by setting the concentration difference of diamond abrasives in the convex section and the concave section, it is beneficial to adjust the wear resistance of each area, so that the convex section with high diamond abrasive concentration has high wear resistance, and the concave section with low diamond abrasive concentration has low wear resistance, and the contact probability between the convex section and the workpiece is much greater than the contact probability between the concave section and the workpiece, so the shape-preserving function of the wire saw beads can be achieved.

[0016] Furthermore, the closed structure formed by alternating multiple convex segments and multiple concave segments constituting the axial projection contour line of the main working substrate is: a polygonal structure formed by sequentially connecting straight lines, or a structure formed by alternatingly connecting straight lines and circular arcs, or a structure formed by sequentially connecting circular arcs.

[0017] The beneficial effect of adopting the above further solution is that multiple embodiments are conducive to improving the applicability of the present invention.

[0018] Furthermore, the radial thickness of the main working substrate coating layer is greater than or equal to 1 times the diamond abrasive grain size and less than 1.5 times the diamond abrasive grain size.

[0019] The beneficial effect of adopting the above further solution is that it is conducive to setting the diamond abrasive particles in a single layer in the radial direction on the coating layer of the main working substrate, and the main working coating layer has a higher holding force on the diamond abrasive particles, which is conducive to improving the life of the beads.

[0020] Furthermore, along the axial direction of the outer peripheral inclined surface of the main working substrate, the difference between any two points equal to the diamond abrasive grain size interval and the central axis of the main working substrate is between 10% and 40% of the diamond abrasive grain size.

[0021] The beneficial effect of adopting the above further solution is that it is conducive to adjusting the sharpness and wear resistance of the wire saw by setting different numbers of diamond abrasive particles (also different concentrations) involved in the work.

[0022] Furthermore, the beads also include at least one longevity-increasing matrix, the main working matrix and the longevity-increasing matrix are axially stacked, the longevity-increasing matrix is ​​a truncated cone-shaped structure whose axial orthographic projection contour line is approximately polygonal, the axial orthographic projection contour line of the longevity-increasing matrix is ​​a closed structure formed by alternating multiple convex sections and multiple concave sections, multiple longevity-increasing matrix coating layers, multiple first longevity-increasing matrix non-coating layers and multiple second longevity-increasing matrix non-coating layers are arranged on the circumferential surface of the longevity-increasing matrix, diamond abrasives are arranged on the longevity-increasing matrix coating layers, and the first longevity-increasing matrix non-coating layer is arranged at one end of the large diameter of the truncated cone-shaped longevity-increasing matrix; in one of the beads, the large diameter end and the small diameter end of the main working matrix have the same orientation as the large diameter end and the small diameter end of the longevity-increasing matrix, and the convex section and the concave section constituting the axial orthographic projection contour line of the main working matrix have the same azimuth angle as the convex section and the concave section constituting the axial orthographic projection contour line of the longevity-increasing matrix.

[0023] The beneficial effect of adopting the above-mentioned further scheme is: it is conducive to generating wear during the operation of the main working substrate, so that when the number of diamond particles participating in the grinding work on the grinding working surface of the main working substrate continues to decrease with the diameter, by setting a life-increasing substrate, when the wire saw feed speed and wire rope tension are fixed, the surplus margin of the tension is fully utilized, and the number of diamond abrasive particles in contact with the workpiece is increased by setting the diamond abrasive particles on the coating layer of the life-increasing substrate, thereby increasing the service life of the wire saw, improving the sharpness of the wire saw engraving, increasing the proportion of mechanical crushing, and reducing the processing load.

[0024] Furthermore, the coating layer of the longevity-increasing substrate is a serrated structure, and multiple tooth roots of the serrated structure are arranged around the small diameter end of the longevity-increasing substrate, and the tooth tips are arranged at the circumferential midpoint of the convex section or the circumferential midpoint of the concave section on the large diameter end of the longevity-increasing substrate.

[0025] The beneficial effect of adopting the above-mentioned further scheme is that the structure of the life-extending substrate coating is conducive to the gradual increase in the number of diamond abrasives from the large diameter end to the small diameter end, which corresponds inversely to the gradual decrease in the number of diamond abrasives from the large diameter end to the small diameter end on the main working substrate coating. It is beneficial that when the beads gradually decrease with the diameter of the main working substrate and the number of diamond abrasives involved in the work decreases, the diameter of the life-extending substrate is reduced and the number of diamond abrasives involved in the work is appropriately compensated, so that the processing load is in a state where the safe tension of the wire rope can be fully utilized, and the feed speed can be controlled to be in a relatively balanced state.

[0026] Furthermore, the longevity-increasing substrate coating layer is alternately provided with a plurality of longevity-increasing substrate working segments and a plurality of longevity-increasing substrate non-working segments in the circumferential direction of the side surface of the cone, and the longevity-increasing substrate working segments and the longevity-increasing substrate non-working segments are both strip structures. The single layer of diamond abrasives is radially arranged on the longevity-increasing substrate working segments, and the circumferential line length of the longevity-increasing substrate working segments corresponding to the convex segments on the axial positive projection contour line of the longevity-increasing substrate is greater than the circumferential line length of the longevity-increasing substrate working segments corresponding to the concave segments.

[0027] The beneficial effect of adopting the above further solution is that it is helpful to assist the main working substrate to achieve the shape-preserving function of the beaded polygon.

[0028] Furthermore, the circumferential line length of the working segment of the life-increasing substrate is the same as the circumferential line length of the working segment of the main working substrate, the circumferential line length of the non-working segment of the life-increasing substrate is the same as the circumferential line length of the non-working segment of the main working substrate, and the orientation of the working segment of the life-increasing substrate and the non-working segment of the life-increasing substrate on the life-increasing substrate coating layer is the same as the orientation of the working segment of the main working substrate and the non-working segment of the main working substrate on the main working substrate coating layer.

[0029] The beneficial effect of adopting the above further solution is that it is helpful to assist the main working substrate to achieve the shape-preserving function of the beaded polygon.

[0030] Furthermore, the circumferential line length of the working section of the life-extending substrate is greater than or equal to 1 times the diamond abrasive particle size, and less than 2 times the diamond abrasive particle size, and the circumferential line length of the non-working section of the life-extending substrate is greater than or equal to 0.2 times the diamond abrasive particle size, and less than 2 times the diamond abrasive particle size.

[0031] The beneficial effect of adopting the above further solution is: by setting the circumferential length of each working section to be different, the supporting and protective effects of the diamond abrasive particles are different, that is, the wear resistance is different, thereby achieving conformal wear and further achieving the conformal function.

[0032] Furthermore, when there are a plurality of the main working substrates and a plurality of the life-increasing substrates on one bead, the first life-increasing substrate non-plating layers on the plurality of the life-increasing substrates are arranged at the same azimuth angle.

[0033] The beneficial effect of adopting the above further solution is: it is conducive to increasing the proportion of mechanical crushing of the workpiece and reducing the wear rate of the workpiece on the diamond abrasive particles.

[0034] Furthermore, the first life-increasing matrix non-plating layer on the plurality of beads is randomly staggered in azimuth at each axial point.

[0035] The beneficial effect of adopting the above further solution is: it is conducive to increasing the proportion of mechanical crushing of the workpiece and reducing the wear rate of the workpiece on the diamond abrasive particles.

[0036] Furthermore, the closed structure formed by alternating multiple convex sections and multiple concave sections constituting the life-extending base is a polygonal structure formed by sequentially connecting straight lines, a structure formed by alternating straight lines and circular arcs, or a structure formed by sequentially connecting circular arcs.

[0037] The beneficial effect of adopting the above further solution is that multiple embodiments are conducive to improving the applicability of the present invention.

[0038] Furthermore, the radial thickness of the life-extending substrate coating layer is greater than or equal to 1 times the particle size of the diamond abrasive grains, and less than 1.5 times the particle size of the diamond abrasive grains.

[0039] The beneficial effect of adopting the above further solution is that it is conducive to setting the diamond abrasive grains in a single layer in the radial direction on the life-increasing base coating layer, and the coating layer has a high holding force on the diamond abrasive grains, which is conducive to improving the life of the beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG1 is a schematic diagram of the overall structure provided by Embodiment 1 of the present invention;

[0041] FIG2 is a schematic diagram of a beaded structure provided in Example 1 of the present invention;

[0042] FIG3 is a side view of beads provided in Example 1 of the present invention;

[0043] FIG4 is a front view of a bead string provided in Example 1 of the present invention;

[0044] FIG5 is a cross-sectional view of beads provided in Example 1 of the present invention;

[0045] FIG6 is an enlarged schematic diagram of region A in the structure shown in FIG5 ;

[0046] FIG7 is a schematic diagram of a processing state according to an embodiment of the present invention;

[0047] 8 is a schematic diagram of a main working substrate working section and a main working substrate non-working section on a main working substrate coating layer provided by an embodiment of the present invention;

[0048] FIG9 is a schematic diagram of the overall structure of the second embodiment of the present invention;

[0049] FIG10 is a schematic diagram of a beaded structure provided in Example 2 of the present invention;

[0050] FIG11 is a side view of beads provided in Example 2 of the present invention;

[0051] FIG12 is a schematic diagram of a beaded structure provided in Example 3 of the present invention;

[0052] FIG13 is a side view of beads provided in Example 3 of the present invention;

[0053] FIG14 is a schematic diagram of the overall structure of the fourth embodiment of the present invention;

[0054] FIG15 is an enlarged schematic diagram of the Q region in the structure shown in FIG14 ;

[0055] FIG16 is a right side view of the structure shown in FIG14;

[0056] FIG17 is a cross-sectional view of a life-extending substrate provided by an embodiment of the present invention;

[0057] FIG18 is a schematic diagram of the overall structure of the fifth embodiment of the present invention;

[0058] FIG19 is an enlarged schematic diagram of the T region in the structure shown in FIG18 .

[0059] Among them, H in Figure 6 represents the radial thickness of the coating layer of the main working substrate, and b represents the particle size of the diamond abrasive; h in Figure 7 represents the processing amount of the workpiece, and the arrow represents the processing direction of the wire saw; b in Figure 8 represents the particle size of the diamond abrasive, L represents the line length of the working section of the main working substrate in the circumferential direction of the side of the cone, and δ represents the line length of the non-working section of the main working substrate in the circumferential direction of the side of the cone; the arrows in Figures 14 and 18 represent the processing direction of the wire saw.

[0060] In the accompanying drawings, the list of components represented by each reference number is as follows: 1. Beads; 2. Spacer; 3. Wire rope; 11. Main working substrate; 12. Life-increasing substrate; 111. Main working substrate coating; 112. Main working substrate non-coating; 113. Main working substrate working section; 114. Main working substrate non-working section; 121. Life-increasing substrate coating; 122. First life-increasing substrate non-coating; 123. Life-increasing substrate working section; 124. Life-increasing substrate non-working section; 125. Second life-increasing substrate non-coating. DETAILED DESCRIPTION

[0061] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0062] As shown in Figures 1 to 13, an electroplated polygonal beaded wire saw comprises: a plurality of beads 1, a plurality of spacers 2 and a steel wire rope 3, wherein the plurality of beads 1 and the plurality of spacers 2 are alternately and coaxially sleeved on the steel wire rope 3; the beads 1 are formed by axially stacking at least one main working base 11, the main working base 11 is a truncated cone-shaped structure whose axial orthographic projection contour line is approximately polygonal, the axial orthographic projection contour line of the main working base 11 is a closed structure formed by alternating multiple convex sections and multiple concave sections, a main working base coating layer 111 and a plurality of main working base non-coating layers 112 are provided on the circumferential surface of the main working base 11, diamond abrasives are provided on the main working base coating layer 111, and the main working base non-coating layer 112 is provided at one end of the large diameter of the truncated cone-shaped main working base 11.

[0063] It should be noted that, in the technical solution of the present invention, “a plurality of beads 1 and a plurality of spacers 2 are alternately arranged” means that, along the direction of the steel wire rope 3 , one spacer 2 is arranged between two beads 1 , and one bead 1 is arranged between two spacers 2 ;

[0064] The main working substrate non-plated layer 112 is formed by axial cutting from the small diameter end to the large diameter end of the main working substrate 11 according to the pre-set axial orthographic projection contour line. After cutting, the main working substrate non-plated layer 112 is formed on the circumferential surface of the large diameter end of the main working substrate 11. Therefore, the main working substrate plating layer 111 is on the truncated cone side surface of the truncated cone, and the main working substrate non-plated layer 112 is on the circumferential surface of the non-truncated cone side surface, as shown in FIG2 ;

[0065] The truncated cone-shaped bottom surface is approximately polygonal.

[0066] The beneficial effects of the present invention are as follows: a plurality of main working substrate non-coating layers are arranged on the circumferential surface of the truncated cone-shaped main working substrate, which is beneficial to ensure that when the beads are working, only part of the diamond abrasive grains at the large diameter (i.e., close to the truncated cone-shaped bottom surface of the substrate) close to each circumferential point of the substrate (i.e., any central angle) in the circumferential direction participate in grinding, and the probability of the diamond abrasive grains corresponding to the multiple convex sections of the contour line contacting (i.e., grinding) the workpiece is relatively greater than the diamond abrasive grains corresponding to the multiple concave sections of the contour line, so the contact area between the beads and the workpiece is greatly reduced. Compared with the existing technology, under the action of the same applied force, the working pressure of the diamond abrasive grains is high, thereby enhancing the engraving ability and improving the sharpness; on this basis, by adaptively adjusting the concentration of diamond abrasive grains on the main working substrate coating layer corresponding to the convex sections and concave sections on the contour line, it is beneficial to achieve the shape-preserving function of the bead polygon.

[0067] Preferably, as shown in Figures 1 to 8, the main working substrate non-coated layers 112 on the multiple beads 1 are randomly staggered in azimuth at each axial point; the main working substrate coating layer 111 is alternately provided with multiple main working substrate working segments 113 and multiple main working substrate non-working segments 114 in the circumferential direction of the side surface of the cone, and the main working substrate working segments 113 and the main working substrate non-working segments 114 are both strip structures, and the diamond abrasive single layer is radially arranged on the main working substrate working segment 113, and the circumferential line length of the main working substrate working segment 113 corresponding to the convex segment on the axial positive projection contour line of the main working substrate 11 is greater than the circumferential line length of the main working substrate working segment 113 corresponding to the concave segment.

[0068] It should be noted that: in the technical solution of the present invention, “the main working base non-plated layer 112 on the plurality of beads 1 is randomly staggered in azimuth at each axial point” means that along the direction of the steel wire rope 3, the main working base non-plated layer 112 on one bead 1 and the main working base non-plated layer 112 on another adjacent bead 1 are staggered in the circumferential direction of the side surface of the truncated cone, then the main working base non-plated layer 112 on the plurality of beads 1 will form a sawtooth-like structure in the circumferential direction of the side surface of the truncated cone, which is the “macro-serration” in the technical solution of this application;

[0069] At the same time, since the main working substrate coating layer 111 is alternately provided with a plurality of main working substrate working segments 113 and a plurality of main working substrate non-working segments 114 in the circumferential direction of the truncated cone side surface, and the diamond abrasive grains are radially arranged in a single layer on the main working substrate working segments 113, then along the circumference of the main working substrate coating layer 111, the diamond abrasive grains on the main working substrate working segments 113 are raised, and there are no diamond abrasive grains on the main working substrate non-working segments 114, which will be worn down to form micro grooves, thereby forming the "micro sawtooth" in the technical solution of this application;

[0070] Since the main working substrate coating layer 111 is provided on the circumferential surface of the main working substrate 11, and the main working substrate working section 113 is provided on the main working substrate coating layer 111, in the technical solution of the present invention, the main working substrate working section 113 is not a strip structure with a constant width from the small diameter end to the large diameter end of the main working substrate 11, but a strip structure with a width gradually increasing from the small diameter end to the large diameter end of the main working substrate 11;

[0071] The beneficial effects of adopting the above-mentioned preferred scheme are as follows: the structural setting of the working section of the main working substrate and the non-working section of the main working substrate can make the diamond abrasives on the working section of the main working substrate squeeze the workpiece corresponding to the adjacent non-working section of the main working substrate, realize mechanical crushing on a macro scale, and thus reduce the overall cutting load of the beads; the diamond abrasives participating in the work on the periphery of the main working substrate form a "micro-serrated" structure in the circumferential direction of the side of the frustum, realizing micro-mechanical crushing of the workpiece, which is beneficial to reducing the processing load, cooling and chip removal, reducing diamond cutting heat, and improving the life of the beads; the non-working section of the main working substrate at the large diameter is prone to wear and grooves, and the random gaps between it and the workpiece have better capacity / chip removal space, and at the same time It also serves as a water trough, with a short and smooth chip removal distance, which greatly reduces frictional heat and reduces the heat loss of diamond abrasives. At the same time, the proportion of cooling water being ineffectively pushed and atomized is greatly reduced, and the cooling water cools the working diamond abrasives faster, with a higher effective cooling rate, which is beneficial to improving the life of the beads; by adapting the circumferential line length of the working section of the main working substrate and the non-working section of the main working substrate, the number of diamond abrasives involved in the work is controlled, which is beneficial to reducing the processing load and the wire breakage rate of the wire saw; the multi-conical manner of the main working substrate forms an axial "macro-sawtooth" structure with large chip and water capacity, realizing an intermittent chip cutting mode, which is beneficial to improving sharpness; the single-layer diamond abrasive coating has a short manufacturing cycle, a simple process and low cost.

[0072] Preferably, as shown in Figure 8, the line length L of the working segment 113 of the main working substrate in the circumferential direction of the side surface of the cone is greater than or equal to 1 times the diamond abrasive particle size b, and less than 2 times the diamond abrasive particle size b, and the line length δ of the non-working segment 114 of the main working substrate in the circumferential direction of the side surface of the cone is greater than or equal to 0.2 times the diamond abrasive particle size b, and less than 2 times the diamond abrasive particle size b.

[0073] The beneficial effect of adopting the above preferred solution is: by setting the circumferential length of each main working substrate working section to be different, the diamond abrasive particles are formed to have different supporting and protective effects, that is, the wear resistance is different, thereby achieving conformal wear and further achieving the conformal function.

[0074] Preferably, as shown in FIG2 , when the beads 1 are composed of a plurality of main working substrates 11 stacked axially, the main working substrate non-plated layers 112 on the plurality of main working substrates 11 are arranged at the same azimuth angle.

[0075] It should be noted that: “arranged at the same azimuth angle” means that the positions of the plurality of main working substrate non-plated layers 112 in the circumferential direction of the main working substrate 11 are the same when viewed along the axial direction.

[0076] The beneficial effect of adopting the above preferred solution is that the non-coated layer azimuth angles of the main working substrates on multiple main working substrates of a single bead are the same, which is beneficial to increasing the proportion of mechanical crushing of the workpiece and reducing the wear rate of the workpiece on the diamond abrasives.

[0077] Preferably, as shown in Figure 2, the multiple main working substrate non-coated layers 112 correspond one-to-one to the multiple concave sections on the contour line, the diamond abrasive concentration set on the main working substrate coating layer 111 corresponding to the convex section is higher than the diamond abrasive concentration set on the main working substrate coating layer 111 corresponding to the concave section, the diamond abrasive concentration set on the main working substrate coating layer 111 corresponding to the convex section is 1.2 to 2 times the diamond abrasive concentration set on the main working substrate coating layer 111 corresponding to the concave section, and in the circumferential direction of the main working substrate coating layer 111, from the most convex point on the main working substrate coating layer 111 corresponding to the convex section to the most concave point on the main working substrate coating layer 111 corresponding to the concave section adjacent to the convex section, the diamond abrasive concentration gradually decreases or decreases in a step-by-step manner.

[0078] Among them, it should be noted that: the main working substrate non-plated layer 112 is formed by axial cutting from the small diameter end to the large diameter end of the main working substrate 11 according to the pre-set axial projection contour line. After cutting, the main working substrate non-plated layer 112 will be formed on the circumferential surface of the large diameter end of the main working substrate 11. Since the part of the large diameter end of the main working substrate 11 that is cut off forms an inward concave, the main working substrate non-plated layer 112 corresponds to the inward concave section, as shown in Figures 3, 11 and 13. The circumscribed circle of the bead 1 is the inward projection of the large diameter end of the main working substrate 11 when the main working substrate non-plated layer 112 is not processed, then the convex section is part of the original circumscribed circle, and the distance from the convex section to the center of the circle is the radius of the circumscribed circle. The concave section is the part formed after the original circumscribed circle is cut, and the distance from the concave section to the center of the circle is less than the radius of the circumscribed circle.

[0079] The beneficial effect of adopting the above-mentioned preferred scheme is: by setting the concentration difference of diamond abrasives in the convex section and the concave section, it is beneficial to adjust the wear resistance of each area, so that the convex section with high diamond abrasive concentration has high wear resistance, and the concave section with low diamond abrasive concentration has low wear resistance, and the contact probability between the convex section and the workpiece is much greater than the contact probability between the concave section and the workpiece, so the shape-preserving function of the wire saw beads can be achieved.

[0080] Preferably, as shown in Figures 3, 11 and 13, the closed structure formed by alternating multiple convex segments and multiple concave segments constituting the axial projection contour line of the main working base 11 is: a polygonal structure formed by sequentially connecting straight lines, or a structure formed by alternatingly connecting straight lines and circular arcs, or a structure formed by sequentially connecting circular arcs.

[0081] Among them, it should be noted that: as shown in Figure 13, when the embodiment is a polygonal structure formed by connecting straight lines in sequence, the convex section is the vertex of the polygon, the most convex point is also the vertex of the polygon, the concave section is the side of the polygon, and the most concave point is the midpoint of each side of the polygon; as shown in Figure 3, when the embodiment is a structure formed by alternating straight lines and circular arcs, the convex section is a convex arc, the most convex point is the midpoint of the convex arc, the concave section is a straight line, and the most concave point is the midpoint of each straight line; as shown in Figure 11, when the embodiment is a structure formed by connecting arcs in sequence, the convex section is a convex arc, the most convex point is the midpoint of the convex arc, the concave section is a concave arc, and the most concave point is the midpoint of the concave arc.

[0082] The beneficial effect of adopting the above preferred solution is that multiple embodiments are conducive to improving the applicability of the present invention.

[0083] Preferably, as shown in FIG6 , the radial thickness H of the main working substrate coating layer 111 is greater than or equal to 1 times the diamond abrasive grain size b, and less than 1.5 times the diamond abrasive grain size b.

[0084] The beneficial effects of adopting the above preferred solution are: it is conducive to setting the diamond abrasive particles in a single layer in the radial direction on the coating layer of the main working substrate, and the main working coating layer has a high holding force on the diamond abrasive particles, which is conducive to improving the life of the beads.

[0085] Preferably, as shown in Figures 5 to 7, along the axial direction of the outer peripheral inclined surface of the main working substrate 11, the difference between any two points equal to the diamond abrasive grain size spacing and the central axis of the main working substrate 11 is between 10% and 40% of the diamond abrasive grain size.

[0086] It should be noted that: at the viewing angle shown in FIG7 , in the main working substrate coating layer 111 on the inclined surface of the truncated cone-shaped main working substrate 11, at the maximum radius point of any central angle, the number of diamond abrasive grains participating in effective machining in the axial direction at this point is n, and the range of n is 0≤n≤2, wherein the optimal selection for high sharpness is 0≤n≤1, and the optimal selection for high wear resistance is 1≤n≤2;

[0087] As shown in Figure 7, the layout requirements of the bead 1 when working are: the axial small diameter end is the front end, that is, the main working substrate coating layer 111 faces forward, and the main working substrate 11 is the back support of the diamond abrasive at the back, which is conducive to bearing higher cutting force or impact force, reducing the unnecessary shedding rate of diamond abrasives, and increasing the service life of the bead 1.

[0088] The beneficial effect of adopting the above preferred solution is that it is conducive to adjusting the sharpness and wear resistance of the wire saw by setting different numbers of diamond abrasive particles (also different concentrations) involved in the work.

[0089] Preferably, as shown in Figures 14 to 19, the beads 1 further include at least one longevity-increasing matrix 12, the main working matrix 11 and the longevity-increasing matrix 12 are axially stacked, the longevity-increasing matrix 12 is a truncated cone-shaped structure whose axial orthographic projection contour line is approximately polygonal, the axial orthographic projection contour line of the longevity-increasing matrix 12 is a closed structure formed by alternating multiple convex sections and multiple concave sections, and multiple longevity-increasing matrix coating layers 121, multiple first longevity-increasing matrix non-coating layers 122 and multiple second longevity-increasing matrix coating layers 123 are provided on the circumferential surface of the longevity-increasing matrix 12. The longevity-increasing substrate non-plated layer 125, the longevity-increasing substrate plating layer 121 is provided with diamond abrasive grains, and the first longevity-increasing substrate non-plated layer 122 is provided at one end of the large diameter of the truncated cone-shaped longevity-increasing substrate 12; in one of the beads 1, the large diameter end and the small diameter end of the main working substrate 11 have the same orientation as the large diameter end and the small diameter end of the longevity-increasing substrate 12, and the convex section and the concave section that constitute the axial orthographic projection contour line of the main working substrate 11 have the same orientation angle as the convex section and the concave section that constitute the axial orthographic projection contour line of the longevity-increasing substrate 12.

[0090] It should be noted that: in the technical solution of the present invention, when there is only one main working base 11 and one life-increasing base 12, the main working base 11 is arranged in front of the life-increasing base 12 along the processing direction of the wire saw; when there are multiple main working bases 11 and multiple life-increasing bases 12, at least one life-increasing base 12 is arranged between two adjacent main working bases 11; when there is only one main working base 11 and multiple life-increasing bases 12, the main working base 11 is arranged in front of multiple life-increasing bases 12 along the processing direction of the wire saw;

[0091] When the feed speed and wire rope tension of the wire saw are fixed, as the diameter of the bead 1 continues to shrink with wear, the grinding working surface of the bead 1 also shrinks, the grinding load also decreases, and the number of diamond abrasives involved in the grinding work also decreases. The bead 1 will become increasingly easy to grind and engrave the workpiece, and only part of the tensioning force needs to be used to drive the bead for grinding processing, and the remaining tensioning force is wasted. On this basis, the life-increasing base 12 is added, and the life-increasing base coating layer 121 is provided on the circumference of the life-increasing base 12. The remaining tensioning force is utilized by the diamond abrasives on the life-increasing base coating layer 121, so that the number of diamond abrasives involved in the grinding work can be increased. When grinding the same workpiece, the more diamond abrasives involved in the grinding work, the longer the wire saw can be used, that is, the longer the life of the wire saw.

[0092] The beneficial effect of adopting the above-mentioned preferred scheme is: it is conducive to the wear generated during the operation of the main working substrate, so that when the number of diamond particles participating in the grinding work on the grinding working surface of the main working substrate continues to decrease with the diameter, by setting a life-increasing substrate, when the wire saw feed speed and wire rope tension are fixed, the surplus margin of the tension is fully utilized, and the number of diamond abrasive particles in contact with the workpiece is increased by setting the diamond abrasive particles on the coating layer of the life-increasing substrate, thereby increasing the service life of the wire saw, improving the sharpness of the wire saw engraving, increasing the proportion of mechanical crushing, and reducing the processing load.

[0093] Preferably, as shown in Figures 15 and 19, the longevity-increasing substrate coating layer 121 is a serrated structure, and multiple tooth roots of the serrated structure are arranged around the small diameter end of the longevity-increasing substrate 12, and the tooth tips are arranged at the circumferential midpoint of the convex section or the circumferential midpoint of the concave section on the large diameter end of the longevity-increasing substrate 12.

[0094] Among them, it should be noted that: in the technical solution of the present invention, except for the multiple serrated life-increasing substrate coating layers 121 on the circumferential surface of the life-increasing substrate 12, the other areas are all life-increasing substrate non-coating layers, and the life-increasing substrate non-coating layers include multiple first life-increasing substrate non-coating layers 122 and multiple second life-increasing substrate non-coating layers 125. The first life-increasing substrate non-coating layer 122 is arranged at one end of the large diameter of the truncated cone-shaped life-increasing substrate 12, so the part of the life-increasing substrate non-coating layer except the first life-increasing substrate non-coating layer 122 is the second life-increasing substrate non-coating layer 125, as shown in Figures 15 and 19.

[0095] The beneficial effect of adopting the above-mentioned preferred scheme is that the structure of the life-extending substrate coating is conducive to the gradual increase in the number of diamond abrasives from the large diameter end to the small diameter end, which corresponds inversely to the gradual decrease in the number of diamond abrasives from the large diameter end to the small diameter end on the main working substrate coating. It is beneficial that when the beads gradually decrease with the diameter of the main working substrate and the number of diamond abrasives involved in the work decreases, the diameter of the life-extending substrate is reduced and the number of diamond abrasives involved in the work is appropriately compensated, so that the processing load is in a state where the safe tension of the wire rope can be fully utilized, and the feed speed can be controlled to be in a relatively balanced state.

[0096] Preferably, as shown in Figures 15 and 19, the longevity-increasing substrate coating layer 121 is alternately provided with a plurality of longevity-increasing substrate working segments 123 and a plurality of longevity-increasing substrate non-working segments 124 in the circumferential direction of the side surface of the cone, and the longevity-increasing substrate working segments 123 and the longevity-increasing substrate non-working segments 124 are both strip structures, and the single layer of diamond abrasives is radially arranged on the longevity-increasing substrate working segment 123, and the circumferential line length of the longevity-increasing substrate working segment 123 corresponding to the convex segment on the axial positive projection contour line of the longevity-increasing substrate 12 is greater than the circumferential line length of the longevity-increasing substrate working segment 123 corresponding to the concave segment.

[0097] The beneficial effect of adopting the above preferred solution is that it is helpful to assist the main working substrate in achieving the shape-preserving function of the beaded polygon.

[0098] Preferably, as shown in Figures 15 and 19, the circumferential line length of the life-increasing substrate working segment 123 is the same as the circumferential line length of the main working substrate working segment 113, the circumferential line length of the life-increasing substrate non-working segment 124 is the same as the circumferential line length of the main working substrate non-working segment 114, and the orientations of the life-increasing substrate working segment 123 and the life-increasing substrate non-working segment 124 on the life-increasing substrate coating layer 121 are the same as the orientations of the main working substrate working segment 113 and the main working substrate non-working segment 114 on the main working substrate coating layer 111.

[0099] The beneficial effect of adopting the above preferred solution is that it is helpful to assist the main working substrate in achieving the shape-preserving function of the beaded polygon.

[0100] Preferably, the circumferential linear length of the working segment 123 of the life-extending substrate is greater than or equal to 1 times the diamond abrasive particle size, and less than 2 times the diamond abrasive particle size, and the circumferential linear length of the non-working segment 124 of the life-extending substrate is greater than or equal to 0.2 times the diamond abrasive particle size, and less than 2 times the diamond abrasive particle size.

[0101] The beneficial effect of adopting the above preferred solution is: by setting the circumferential length of each working section to be different, the diamond abrasive particles form different supporting and protective effects, that is, the wear resistance is different, thereby achieving conformal wear and further achieving the conformal function.

[0102] Preferably, when a plurality of the main working substrates 11 and a plurality of the life-increasing substrates 12 are provided on one bead 1 , the first life-increasing substrate non-plating layers 122 on the plurality of the life-increasing substrates 12 are arranged at the same azimuth angle.

[0103] It should be noted that: “arranged at the same azimuth angle” means that the positions of the plurality of first life-extending substrate non-plating layers 122 in the circumferential direction of the life-extending substrate 12 are the same when viewed along the axial direction.

[0104] The beneficial effects of adopting the above preferred solution are: it is conducive to increasing the proportion of mechanical crushing of the workpiece and reducing the wear rate of the workpiece on the diamond abrasive particles.

[0105] Preferably, the first life-increasing matrix non-plated layer 122 on the plurality of beads 1 is randomly staggered in azimuth at each axial point.

[0106] Among them, it should be noted that: "random staggered setting" means that along the direction of the steel wire rope 3, the first life-increasing matrix non-coated layer 122 on one of the beads 1 and the first life-increasing matrix non-coated layer 122 on another adjacent bead 1 are staggered in the circumferential direction of the side of the cone, then the first life-increasing matrix non-coated layer 122 on multiple beads 1 will also form a sawtooth-like structure in the circumferential direction of the side of the cone.

[0107] The beneficial effects of adopting the above preferred solution are: it is conducive to increasing the proportion of mechanical crushing of the workpiece and reducing the wear rate of the workpiece on the diamond abrasive particles.

[0108] Preferably, the closed structure formed by alternating multiple convex sections and multiple concave sections constituting the life-extending base 12 is a polygonal structure formed by sequentially connecting straight lines, a structure formed by alternating straight lines and circular arcs, or a structure formed by sequentially connecting circular arcs.

[0109] The beneficial effect of adopting the above preferred solution is that multiple embodiments are conducive to improving the applicability of the present invention.

[0110] Preferably, the radial thickness of the life-extending base coating layer 121 is greater than or equal to 1 times the diameter of the diamond abrasive grains, and less than 1.5 times the diameter of the diamond abrasive grains.

[0111] The beneficial effects of adopting the above preferred solution are: it is conducive to setting the diamond abrasive grains in a single layer in the radial direction on the life-increasing base coating layer, and the coating layer has a high holding force on the diamond abrasive grains, which is conducive to improving the life of the beads.

[0112] The present invention will be further described below through several embodiments:

[0113] Example 1.

[0114] As shown in FIG. 1 to FIG. 6 , three main working bases 11 are axially arranged on a bead 1 , and the axial orthographic projection contour line of the main working base 11 is a structure formed by alternating straight lines and circular arcs.

[0115] Example 2.

[0116] As shown in FIG9 to FIG11 , only one main working base 11 is provided on a bead 1 , and the axial orthographic projection contour line of the main working base 11 is a structure formed by sequentially connecting an outer convex arc and an inner concave arc.

[0117] Example 3.

[0118] As shown in FIG12 and FIG13 , only one main working base 11 is provided on a bead 1 , and the axial orthographic projection contour line of the main working base 11 is a regular polygon structure formed by connecting straight lines in sequence.

[0119] Example 4.

[0120] As shown in FIG. 14 to FIG. 16 , the beads 1 are composed of a life-increasing matrix 12 and two main working matrices 11 , and the life-increasing matrix 12 is disposed between the two main working matrices 11 .

[0121] Example 5.

[0122] As shown in FIG18 and FIG19 , the bead 1 is composed of a life-increasing matrix 12 and a main working matrix 11 , and the life-increasing matrix 12 is arranged behind the main working matrix 11 along the processing direction of the wire saw.

[0123] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations 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 should not be understood as limiting the present invention.

[0124] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0125] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0126] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0127] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0128] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electroplated polygonal beaded wire saw, characterized in that: include: A plurality of beads (1), a plurality of spacers (2) and a steel wire rope (3), wherein the plurality of beads (1) and the plurality of spacers (2) are alternately and coaxially sleeved on the steel wire rope (3); The beads (1) are formed by axially stacking at least one main working base (11); the main working base (11) is a truncated cone-shaped structure whose axial orthographic projection contour line is approximately polygonal; the axial orthographic projection contour line of the main working base (11) is a closed structure formed by alternating multiple convex sections and multiple concave sections; a main working base coating layer (111) and multiple main working base non-coating layers (112) are provided on the circumferential surface of the main working base (11); diamond abrasive grains are provided on the main working base coating layer (111); and the main working base non-coating layer (112) is provided at one end of the major diameter of the truncated cone-shaped main working base (11).

2. The electroplated polygonal beaded wire saw according to claim 1, characterized in that: The main working substrate non-plated layer (112) on the plurality of beads (1) is randomly staggered at azimuth angles at various axial points; The main working substrate coating layer (111) is alternately provided with a plurality of main working substrate working segments (113) and a plurality of main working substrate non-working segments (114) in the circumferential direction of the truncated cone side surface. The main working substrate working segments (113) and the main working substrate non-working segments (114) are both strip-shaped structures. The diamond abrasive single layer is radially arranged on the main working substrate working segments (113). The circumferential line length of the main working substrate working segments (113) corresponding to the convex segments on the axial orthographic projection contour line of the main working substrate (11) is greater than the circumferential line length of the main working substrate working segments (113) corresponding to the concave segments.

3. The electroplated polygonal beaded wire saw according to claim 2, characterized in that: The linear length of the working section (113) of the main working base body in the circumferential direction of the side surface of the truncated cone is greater than or equal to 1 times the diameter of the diamond abrasive grains, and less than 2 times the diameter of the diamond abrasive grains; the linear length of the non-working section (114) of the main working base body in the circumferential direction of the side surface of the truncated cone is greater than or equal to 0.2 times the diameter of the diamond abrasive grains, and less than 2 times the diameter of the diamond abrasive grains.

4. The electroplated polygonal beaded wire saw according to claim 1, characterized in that: When the beads (1) are axially stacked with a plurality of the main working substrates (11), the main working substrate non-plated layers (112) on the plurality of the main working substrates (11) are arranged at the same azimuth angle.

5. The electroplated polygonal beaded wire saw according to claim 1, characterized in that: The plurality of main working substrate non-plating layers (112) correspond one-to-one to the plurality of concave sections on the contour line; the concentration of the diamond abrasive grains provided on the main working substrate plating layer (111) corresponding to the convex section is higher than the concentration of the diamond abrasive grains provided on the main working substrate plating layer (111) corresponding to the concave section; the concentration of the diamond abrasive grains provided on the main working substrate plating layer (111) corresponding to the convex section is 1.2 to 2 times the concentration of the diamond abrasive grains provided on the main working substrate plating layer (111) corresponding to the concave section; and in the circumferential direction of the main working substrate plating layer (111), the concentration of the diamond abrasive grains gradually decreases or decreases in a step-like manner from the most convex point on the main working substrate plating layer (111) corresponding to the convex section to the most concave point on the main working substrate plating layer (111) corresponding to the concave section adjacent to the convex section.

6. The electroplated polygonal beaded wire saw according to claim 1, characterized in that: The closed structure formed by alternating multiple convex sections and multiple concave sections constituting the axial orthographic projection contour line of the main working base (11) is a polygonal structure formed by sequentially connecting straight lines, a structure formed by alternately connecting straight lines and circular arcs, or a structure formed by sequentially connecting circular arcs.

7. The electroplated polygonal beaded wire saw according to claim 1, characterized in that: The radial thickness of the main working substrate coating layer (111) is greater than or equal to 1 times the diameter of the diamond abrasive grains, and less than 1.5 times the diameter of the diamond abrasive grains.

8. The electroplated polygonal beaded wire saw according to claim 1, characterized in that: Along the axial direction of the outer peripheral inclined surface of the main working substrate (11), the difference between any two points equal to the diamond abrasive grain size spacing and the central axis of the main working substrate (11) is between 10% and 40% of the diamond abrasive grain size.

9. The electroplated polygonal beaded wire saw according to claim 2, characterized in that: The beads (1) further include at least one longevity-increasing matrix (12), the main working matrix (11) and the longevity-increasing matrix (12) are axially stacked, the longevity-increasing matrix (12) is a truncated cone-shaped structure whose axial orthographic projection contour line is approximately polygonal, the axial orthographic projection contour line of the longevity-increasing matrix (12) is a closed structure formed by alternating multiple convex sections and multiple concave sections, multiple longevity-increasing matrix coating layers (121), multiple first longevity-increasing matrix non-coating layers (122) and multiple second longevity-increasing matrix non-coating layers (125) are provided on the circumferential surface of the longevity-increasing matrix (121), diamond abrasive grains are provided on the longevity-increasing matrix coating layer (121), and the first longevity-increasing matrix non-coating layer (122) is provided at one end of the large diameter of the truncated cone-shaped longevity-increasing matrix (12); In one of the beads (1), the large diameter end and the small diameter end of the main working base (11) have the same orientation as the large diameter end and the small diameter end of the life-increasing base (12), and the convex section and the concave section constituting the axial orthographic projection contour line of the main working base (11) have the same orientation angle as the convex section and the concave section constituting the axial orthographic projection contour line of the life-increasing base (12).

10. The electroplated polygonal beaded wire saw according to claim 9, characterized in that: The longevity-increasing base coating layer (121) is a sawtooth structure, a plurality of tooth roots of the sawtooth structure are arranged around the small-diameter end of the longevity-increasing base (12), and the tooth tips are arranged at the circumferential midpoint of the convex section or the circumferential midpoint of the concave section on the large-diameter end of the longevity-increasing base (12).

11. The electroplated polygonal beaded wire saw according to claim 9, characterized in that: The longevity-increasing substrate coating layer (121) is alternately provided with a plurality of longevity-increasing substrate working segments (123) and a plurality of longevity-increasing substrate non-working segments (124) in the circumferential direction of the truncated cone side surface. The longevity-increasing substrate working segments (123) and the longevity-increasing substrate non-working segments (124) are both strip-shaped structures. The diamond abrasive single layer is radially arranged on the longevity-increasing substrate working segments (123). The circumferential line length of the longevity-increasing substrate working segments (123) corresponding to the convex segments on the axial orthographic projection contour line of the longevity-increasing substrate (12) is greater than the circumferential line length of the longevity-increasing substrate working segments (123) corresponding to the concave segments.

12. The electroplated polygonal beaded wire saw according to claim 11, characterized in that: The circumferential length of the life-increasing substrate working section (123) is the same as the circumferential length of the main working substrate working section (113), the circumferential length of the life-increasing substrate non-working section (124) is the same as the circumferential length of the main working substrate non-working section (114), and the orientations of the life-increasing substrate working section (123) and the life-increasing substrate non-working section (124) on the life-increasing substrate coating layer (121) are the same as the orientations of the main working substrate working section (113) and the main working substrate non-working section (114) on the main working substrate coating layer (111).

13. The electroplated polygonal beaded wire saw according to claim 11, characterized in that: The circumferential linear length of the life-extending matrix working section (123) is greater than or equal to 1 times the diamond abrasive particle size and less than 2 times the diamond abrasive particle size, and the circumferential linear length of the life-extending matrix non-working section (124) is greater than or equal to 0.2 times the diamond abrasive particle size and less than 2 times the diamond abrasive particle size.

14. The electroplated polygonal beaded wire saw according to claim 9, characterized in that: When a plurality of the main working substrates (11) and a plurality of the life-increasing substrates (12) are provided on one bead (1), the first life-increasing substrate non-plating layers (122) on the plurality of the life-increasing substrates (12) are arranged at the same azimuth angle.

15. The electroplated polygonal beaded wire saw according to claim 9, characterized in that: The first life-increasing base non-plating layer (122) on the plurality of beads (1) is randomly staggered in azimuth at each axial point.

16. The electroplated polygonal beaded wire saw according to claim 9, characterized in that: The closed structure formed by alternating multiple convex sections and multiple concave sections constituting the life-extending base (12) is a polygonal structure formed by sequentially connecting straight lines, a structure formed by alternately connecting straight lines and circular arcs, or a structure formed by sequentially connecting circular arcs.

17. The electroplated polygonal beaded wire saw according to claim 9, characterized in that: The radial thickness of the life-extending base coating layer (121) is greater than or equal to 1 times the diameter of the diamond abrasive grains, and less than 1.5 times the diameter of the diamond abrasive grains.

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