CN116834158A - Polygonal diamond string bead rope saw - Google Patents

Abstract

The application relates to a polygonal diamond string bead rope saw, which comprises string beads and string ropes, wherein the inner diameter of the string beads is matched with the outer diameter of the string ropes, the outer wall of the string beads is provided with edges, and the edges are circumferentially arranged along the central axis of the string beads. Be provided with the edge on the outer wall of the string of beads on the rope saw, the edge sets up along the center pin circumference of string of beads, and non-circular string of beads is difficult for rotating in the cutting groove, can not appear because diamond working layer is thinner, is closer to the axle center, just also is more easily turned to the preferential use by the automation, causes the offset to be bigger and bigger, causes string of beads to use inadequately, and thin one side diamond is worn out and makes string of beads inefficacy, leads to the problem that rope saw life-span shortened by a wide margin.

Description

Polygonal diamond string bead rope saw

Technical Field

The application relates to a rope saw, in particular to a polygonal diamond string bead rope saw.

Background

When the existing rope saw works, the surface of the round bead is arc-shaped, on one hand, the round bead moves axially and cuts, namely, the round bead is axially stressed; on the one hand, radial feeding, namely radial stress is realized; meanwhile, due to preset rotation stress, the device is stressed circumferentially. For impregnated beads, the whole circumferential diamond working layer is difficult to achieve uniformity and equal thickness, so that the circumferential consumption cannot be equal, the part with quick consumption is closer to the axle center, and the impregnated beads are easier to be automatically turned and used preferentially, so that the deflection is larger and larger, the beads are insufficient to use and lose efficacy, and the service life is greatly shortened.

Disclosure of Invention

The application aims to solve the technical problem of providing a polygonal diamond string bead rope saw, which relates to string beads with edges and solves the problems of failure and greatly shortened service life caused by insufficient use of the string beads.

The technical scheme for solving the technical problems is as follows: the utility model provides a polygon diamond string of beads rope saw, includes string of beads and string of ropes, and the adaptation is connected between the internal diameter of string of beads and the external diameter of string of ropes, is provided with the edge on the outer wall of string of beads, and the edge sets up along the center pin circumference of string of beads.

The beneficial effects of the application are as follows: be provided with the edge on the outer wall of the string of beads on the rope saw, the edge sets up along the center pin circumference of string of beads, and non-circular string of beads is difficult for rotating in the cutting groove, can not appear because diamond working layer is thinner, is closer to the axle center, just also is more easily turned to the preferential use by the automation, causes the offset to be bigger and bigger, causes string of beads to use inadequately, and thin one side diamond is worn out and makes string of beads inefficacy, leads to the problem that rope saw life-span shortened by a wide margin.

On the basis of the technical scheme, the application can be improved as follows.

Further, the bead string comprises a cylindrical matrix, a diamond working layer for cutting is arranged outside the cylindrical matrix, a gluing filler layer matched with the string rope is arranged inside the cylindrical matrix, and edges are arranged on the diamond working layer.

Further, the more edges are arranged, the impact of the polygonal beads entering the workpiece can be reduced, and at least four edges are arranged.

Further, when the cutting work is guaranteed, the used parts are in a random state each time, so that the uniform abrasion of the peripheral surface of the polygonal beaded diamond working layer is guaranteed, and the edges are uniformly arranged along the circumferential direction of the central shaft of the beaded diamond.

Further, in order to prevent the diamond from being excessively impacted and instantaneously broken, a chamfer is arranged at the edge. The chamfer is provided as a chamfer.

Further, in order to ensure the strength of the diamond working layer and ensure that the string beads cannot rotate as much as possible during the work of the wire saw, all edges are connected through connecting surfaces.

Further, to ensure more diamond at the sharp corners to shape, rounded corners are provided at the end edges of the beads.

Further, in order to ensure the shape retention of the polygon, a deformation-resistant technical means is adopted, for example, the solid axial length of the diamond working layer at the edge angle is greater than that at the edge connecting surface, and the ratio relationship of the lengths is not less than the circumscribed circle diameter/the inscribed circle diameter of the polygon.

Further, the edges are arranged in parallel with the central axis of the bead.

Further, in order to reduce the impact and vibration of the polygonal beads when initially entering the workpiece, the beads are provided with a leading-in end along the axis direction of the beads, and the cross-sectional area of the leading-in end is smaller than that of the other end.

The beneficial effects of adopting the further scheme are as follows:

1. the polygonal beads limit the rotation amplitude, so that the used positions are in a random state each time, the uniform abrasion of the circumferential surface of the polygonal beads is ensured, even if the circumferential surface abrasion of the diamond working layer is unbalanced, the further unbalance is not accelerated, and the negative influence of circumferential tangential force on the diamond falling is avoided or reduced.

2. The angles of the polygonal beads when each polygonal bead enters the workpiece are random, so that the probability that the cutting surfaces of the front polygonal bead and the rear polygonal bead are not coincident when the workpiece is cut is extremely high, the contact area between the polygonal beads and the workpiece when the polygonal beads are cut is reduced, the pressure intensity when the polygonal beads are cut is increased, and the cutting efficiency of the diamond contacting the workpiece is improved; the above characteristics also facilitate increasing the diamond concentration, thereby increasing the life of the wire saw.

3. The probability that the cutting surfaces of the polygonal beads are not coincident is extremely high, and the formed gaps are beneficial to cooling/chip removal, namely, the reduction of heat loss of the diamond, the maintenance of cutting edge angles and the reduction of processing load; the characteristics are beneficial to selecting a string rope with smaller diameter, reducing the diameter of the string bead, enabling the gap processed by the rope saw to be smaller and improving the yield; and the device is more suitable for being used on a gang saw machine due to smaller load.

4. The rotation of the polygonal beads enters the workpiece and is limited by the edges, the circumferential tangential force of the diamond is greatly reduced, and the falling proportion of the diamond is greatly reduced.

5. The reduction of the processing load and the circumferential tangential force reduces the requirement of the bonding agent for holding the diamond force, namely the compactness requirement can be reduced, which is beneficial to the manufacture by adopting the pressureless sintering powder metallurgy processing technology with lower manufacturing cost.

Drawings

FIG. 1 is a schematic view of a three-dimensional view of a rope saw of the present application;

FIG. 2 is a schematic elevational view of the rope saw of the present application;

FIG. 3 is a schematic cross-sectional view of a wire saw of the present application;

FIG. 4 is a schematic cross-sectional view of a front view of the rope saw of the present application;

FIG. 5 is a schematic view of the rope saw of the present application as it is being processed in a work piece;

FIG. 6 is a schematic view of a three-dimensional view of the rope saw of the present application as it is being processed in a work piece;

FIG. 7 is a schematic three-dimensional view of a regular hexagonal bead with a lead-in end according to the present application.

In the drawings, the list of components represented by the various numbers is as follows:

1-bead string, 101-edge, 102-diamond working layer, 103-glue filler layer, 104-matrix, 105-connection surface, 2-string rope, 3-machined piece and 4-leading-in end.

Detailed Description

The principles and features of the present application are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the application.

Example 1

The polygonal diamond string bead rope saw comprises a string bead 1 and a string rope 2, wherein the inner diameter of the string bead 1 is matched with the outer diameter of the string rope 2, an edge 101 is arranged on the outer wall of the string bead 1, and the edge 101 is circumferentially arranged along the central axis of the string bead 1. The bead 1 comprises a cylindrical matrix 104, a diamond working layer 102 for cutting is arranged outside the cylindrical matrix 104, a glue filling layer 103 matched with the string 2 is arranged inside the cylindrical matrix 104, and edges 101 are arranged on the diamond working layer 102.

The product in the prior art, diamond bead 1, is a core main part for cutting on a rope saw, is generally manufactured by adopting metal powder and powder metallurgy technology, and is an impregnated working layer; also useful are brazing, electroforming techniques, with single or impregnated working layers. The bead string 1 is a revolution body of a bus, and most buses are straight lines; the small number of generatrix is a curve, or a straight line plus curve, or a revolving body with a sectional curve. In the use process, the front end and the rear end of the bead string 1 are connected in a straight line in a virtual way, and the connecting line is used as a revolving body, so that the diameter of each axial point is smaller than the diameter of the connecting line, and in the use process, cutting work is basically not performed, but the bead string can be used as a space for containing scraps and introducing water.

When the rope saw of the prior art works, the beads 1 axially move and cut on one hand, namely, are axially stressed; on the one hand, radial feeding, namely radial stress is realized; meanwhile, due to preset rotation stress, the device is stressed circumferentially. For the impregnated beads 1, since the whole circumferential diamond working layer 102 is difficult to be uniform and equal in thickness, the circumferential consumption cannot be equal, so that the part with high consumption is closer to the axle center, and is easier to be automatically turned to be used preferentially, so that the deflection is larger and larger, the beads 1 are insufficient to be used and fail, and the service life is greatly shortened.

When the product bead 1 in the prior art is cut, the binding agent holding diamond particles is worn faster at the front part and two side parts of the particles, trailing effect, namely good supportability, exists at the rear part, and the diamond must have a certain exposure height so as to ensure that a workpiece can be carved, and meanwhile, the product bead 1 also has a exposure height space so as to realize chip/water containing, but the higher the exposure height is, the worse the capability of resisting damage to diamond falling caused by circumferential tangential force is.

When the prior art product bead 1 is cut, the contact section of the product bead 1 and a workpiece are arc-shaped, the macroscopic centering effect is achieved, the rotation of the bead 1 is difficult to limit, even though the rotation is favorable for balanced consumption of the bead 1 when the bead 1 is normal in shape, the diamond is also subjected to the action of circumferential tangential force, the diamond is one of the largest stress sources causing unnecessary falling of the diamond, and the diamond is one of key factors causing unnecessary shortening of the service life of the bead 1.

According to the application, the edge 101 is arranged on the outer wall of the string bead 1 on the rope saw, the edge 101 is circumferentially arranged along the central axis of the string bead 1, the non-circular string bead 1 is not easy to rotate in the cutting groove, and the problems that the service life of the rope saw is greatly shortened because the diamond working layer 102 is thinner and is closer to the axis, and the string bead 1 is easier to be used in preference due to automatic steering, so that the deflection is bigger and bigger, the use of the string bead 1 is insufficient, and the thinner diamond is worn off to cause the failure of the string bead 1 are avoided. When the cutting operation is ensured, the used parts are in random state, so that the uniform abrasion of the peripheral surface of the diamond working layer 102 of the polygonal bead 1 is ensured, and the edges 101 are uniformly arranged along the circumferential direction of the central shaft of the bead 1. In order to ensure the strength of the diamond working layer 102 and ensure that the string bead 1 will not rotate as much as possible when the rope saw is in operation, the connection surfaces between the edges 101 are connected, and the connection surface 105 may be a plane or an arc surface, and the plane is selected to be more optimal.

Example 2

In this embodiment, the more edges 101 are provided, the impact of the polygonal beads 1 entering the workpiece can be reduced, and at least four edges 101 are provided. The polygon is a regular polygon, and the diameter of the circumscribing circle is required to be the required diameter, the number of sides=n+4 (n is a natural number), the higher the linear speed is, the larger the value of n is, so that the impact when the polygonal bead 1 enters the workpiece can be reduced. At n infinity, a quasi-curve is formed with minimal impact, but the diamond working layer 102 is utilized unevenly due to rolling problems, shortening the lifetime of the beads 1.

When the product beads 1 in the prior art enter the working position, the beads 1 in front and back cannot be kept consistent absolutely, if the diameters of the beads 1 at the front end and the rear end are different, the position, the proportion and the stress of the contact surface when the beads 1 at the rear end enter a workpiece are changed, so that the utilization rate of each bead 1 on the same rope saw is poor, and the service life of the rope saw is reduced indirectly. According to the polygonal beads 1, the angle of each polygonal bead 1 entering a workpiece is random, so that the probability that the cutting surfaces of the front and rear polygonal beads 1 are not coincident when cutting is high, each bead 1 can be utilized, and grooves cut by the front and rear beads 1 and tiny bulges in the middle of the grooves can be mechanically extruded and broken, so that abrasion of a diamond working layer is reduced, and the service life of a rope saw is effectively prolonged. In addition, the contact area between the polygonal beads 1 and the workpiece is reduced, so that the pressure intensity of the polygonal beads 1 during cutting is increased, and diamond cutting is facilitated, namely the cutting efficiency is improved; this feature also provides room for increased diamond concentration, which increases the lifetime of the polygonal beaded 1, and the higher the concentration of the diamond working layer 102, the longer the beaded 1 lifetime, and the longer the rope saw lifetime.

Compared with the traditional bead 1 for blocking the whole gap, the bead 1 of the application has more gaps for chip holding/cooling during processing, and is beneficial to reducing the heat loss of diamond and maintaining the cutting edge angle, namely prolonging the service life and improving the sharpness.

The circumferential tangential force of the diamond is greatly reduced, the unnecessary falling proportion of the diamond is greatly reduced, the polygonal bead 1 manufactured by adopting the pressureless sintering process has the opportunity of being close to the performance of the prior art hot-pressed sintering bead 1, the advantage of being more than the splice cost is achieved, and the bead 1 is hopeful to be greatly superior to the bead 1 manufactured by adopting the prior art hot-pressed sintering process in cost performance after the formula of the adaptive bonding agent and the concentration of the diamond are further researched.

Once the polygonal beads 1 are cut, the rotation of the polygonal beads 1 is limited by the edges, the circumferential tangential force of the diamond is greatly reduced, and the unnecessary falling proportion of the diamond is greatly reduced; this feature provides the possibility of reducing the diamond concentration, can increase the diamond etching pressure, improve sharpness, and reduce the diamond cost.

Example 3

As shown in fig. 3 and 5, in order to prevent the diamond from being broken down instantaneously by an excessive impact, a chamfer is provided at the edge 101. The chamfer is provided as a chamfer. In order to ensure that more diamond is present at the sharp corners for shape retention, rounded corners are provided at the end edges of the beads 1. The outer peripheral surface edge and the edge of the polygonal bead string 1 are connected, the edge is tangent to an arc, the radius R of the arc is more than or equal to 3, the diameter of the diamond is larger than or equal to 3, and more diamond at the sharp corners is ensured to be shaped. The corner and the end are rounded, so that a good smooth transition can be ensured when the diamond working surface is cut, and the diamond working layer 102 is not directly broken or falls off due to the fact that the diamond working surface is directly collided with the hard workpiece 3.

In this embodiment, the edge 101 is arranged parallel to the central axis of the bead 1. The parallel arrangement is used for the beads 1 to be more convenient to process.

Example 3

In this embodiment, as shown in fig. 7, taking the regular hexagonal bead 1 as an example, in order to reduce the impact and vibration of the polygonal bead 1 when it initially enters the workpiece, the bead 1 is provided with an introduction end 4 along the axial direction of the bead 1, and the cross-sectional area of the introduction end 4 is smaller than that of the other end. The edge 101 is inclined relative to the central axis of the bead 1, when the diamond working layer 102 contacts the workpiece 3 in a small area when the workpiece is cut, and the leading-in end 4 is in a round table or other shapes with a buffer function, so that the impact between the diamond working layer and the workpiece 3 can be effectively relieved, and the diamond working layer 102 is protected.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. The utility model provides a polygon diamond string bead rope saw, its characterized in that includes string bead (1) and string rope (2), the internal diameter of string bead (1) with the adaptation is connected between the external diameter of string rope (2), the outer wall of string bead (1) has many edges (101) for the polygon, and is many edge (101) are followed the central pin circumference interval setting of string bead (1).

2. A polygonal diamond beaded rope saw according to claim 1, characterized in that the beaded rope (1) comprises a cylindrical base body (104), a diamond working layer (102) for cutting is arranged outside the cylindrical base body (104), a glue filling layer (103) adapted to the beaded rope (2) is arranged inside the cylindrical base body (104), and the edge (101) is arranged on the diamond working layer (102).

3. A polygonal diamond beaded rope saw according to claim 1, characterized in that said edges (101) are provided with at least four.

4. A polygonal diamond beaded rope saw according to claim 1, characterized in that a plurality of said edges (101) are evenly arranged circumferentially along the central axis of the beaded (1).

5. A polygonal diamond beaded rope saw according to claim 1, characterized in that the edges (101) are provided with rounded corners.

6. A polygonal diamond beaded rope saw according to claim 1, characterized in that the edges (101) are connected by means of connecting surfaces.

7. A polygonal diamond beaded rope saw according to claim 6, characterized in that the diamond working layer (102) has a solid axial length at the edge that is larger than the solid axial length at the edge connection face (105).

8. A polygonal diamond beaded rope saw according to claim 1, characterized in that the beaded rope (1) is provided with rounded corners at the edges of the axial ends.

9. A polygonal diamond beaded rope saw according to any one of the claims 1-8, characterized in that the edge (101) is arranged parallel to the central axis of the beaded (1) being located.

10. A polygonal diamond beaded rope saw according to any one of the claims 1-8, characterized in that one end of the beaded (1) in the axial direction of the beaded (1) is an introduction end (4), the introduction end (4) having a smaller cross-sectional area than the other end.