Anti-slip diamond brazing bead string and wire saw

Abstract

The utility model provides an anti-slip diamond brazing bead string and a wire saw, which comprise a bead string base body and an abrasive particle layer fixed on the outer surface of the bead string base body, and are characterized in that the outer surface of the bead string base body is provided with a spiral groove along the circumferential direction; the abrasive particle layer is arranged in the spiral groove and comprises brazing filler metal and diamond, and the diamond is connected into the spiral groove through the brazing filler metal; by the adoption of the technical scheme, the situation that the brazing material forms a liquid state in the brazing process and then drives the diamonds to slide is prevented, the diamonds are evenly distributed in the spiral groove, the diamond utilization rate in the grinding process is increased, and then the grinding efficiency is improved; and the spiral grooves are beneficial to chip removal during grinding of the diamond brazing bead string, and the situation that cuttings adhere to the surface of the diamond, and the grinding capacity is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of stone grinding, in particular to an anti-slip diamond brazing bead and a rope saw. Background Art

[0002] Brazed wire saw is a diamond grinding tool commonly used in the metal material and reinforced concrete grinding industry. The wire saw used in traditional wire saws is a multi-strand steel wire rope with a certain number of beads in proportion. The beads generally include a bead base and an abrasive layer fixed on the outer surface of the bead base. Adjacent beads are separated by a spacer sleeve that plays a supporting and fixing role. During the sawing process, grinding is mainly carried out by beads. Therefore, the quality of beads directly determines the working efficiency and cost of the wire saw machine.

[0003] Currently, the commonly used beads are brazed diamond beads, which use high-temperature brazing to cause the brazing material to dissolve, diffuse, and chemically combine at the interface between the diamond abrasive and the metal matrix, thereby increasing the matrix's grip on the diamond abrasive and improving the bonding strength between the diamond, binder (brazing alloy), and matrix.

[0004] See also Figure 1 As shown, the bead base structure of the existing wire saw (see CN211661801U for a consolidated bead saw) is prone to melting the brazing material in the cold blank of the bead under the action of high temperature during the brazing process, making the brazing material in the cold blank fluid. Under the action of gravity, the brazing material will move with the diamond on the outer surface of the bead base, or even leave the outer surface of the bead base, resulting in uneven distribution of diamonds, thereby making the diamond utilization rate low during the grinding process, affecting the grinding efficiency; in addition, it is not easy to remove chips when grinding metal materials, and metal chips adhere to the diamond surface, affecting the grinding ability. Utility Model Content

[0005] Therefore, it is necessary to provide a slip-resistant diamond brazing bead to solve the problem of uneven diamond distribution and poor chip removal ability in the existing bead during the brazing process.

[0006] To achieve the above-mentioned purpose, the utility model provides an anti-slip diamond brazing bead, which includes a bead base and an abrasive layer fixed on the outer surface of the bead base, and the outer surface of the bead base is provided with a spiral groove along the circumferential direction; the abrasive layer is arranged in the spiral groove, and includes brazing material and diamond, and the diamond is connected in the spiral groove through the brazing material.

[0007] Furthermore, the depth of the spiral groove is 0.1-0.3 mm.

[0008] Furthermore, the brazing material is a point-shaped brazing point, and the diamond is connected in the spiral groove through the brazing point.

[0009] Furthermore, the diamonds are connected via brazing points.

[0010] Furthermore, the abrasive layer is distributed on the spiral groove after being mixed with brazing material and diamond, and then formed by a brazing process.

[0011] Furthermore, the diamonds include type A diamonds and type B diamonds, the type A diamonds have a smaller particle size than type B diamonds, and a plurality of type A diamonds are filled between two adjacent type B diamonds.

[0012] Furthermore, the Class A diamond is a diamond with a grain size of 35 / 40, and the Class B diamond is a diamond with a grain size of 40 / 45.

[0013] Furthermore, a flow stopper is provided on the outer surface of the beaded matrix, and the flow stopper is located at the bottom of the spiral groove.

[0014] A wire saw uses the above-mentioned anti-slip diamond brazing beads, and also includes a steel wire. The diamond brazing beads are arranged on the steel wire at intervals.

[0015] Furthermore, the diamond brazing beads are threadedly connected to the steel rope.

[0016] Different from the prior art, the above technical solution has spiral grooves on the outer surface of the beaded substrate along the circumferential direction. The spiral grooves help to strengthen the friction between the diamond and the beaded substrate, and are used to prevent the brazing material from forming a liquid and causing the diamond to slide during the brazing process, so that the diamond is evenly distributed in the spiral grooves, thereby improving the utilization rate of the diamond during the grinding process, and thus improving the grinding efficiency; and the spiral grooves are beneficial to chip removal of the diamond brazing beads during grinding, preventing chips from sticking to the diamond surface and affecting the grinding ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the existing wire saw described in the background technology;

[0018] Figure 2 It is a structural schematic diagram of the beaded base of the utility model;

[0019] Figure 3 It is a front view of the beaded base of the utility model;

[0020] Figure 4 for Figure 3 Sectional view at CC;

[0021] Figure 5 This is a schematic diagram of the structure of the anti-slip diamond brazing beads of the utility model;

[0022] Figure 6It is a structural schematic diagram of the rope saw of the utility model.

[0023] Description of reference numerals:

[0024] 10. Beaded substrate; 101. Spiral groove; 102. Stop plate; 103. Internal thread; 20. Abrasive layer; 201. Class B diamond; 202. Class A diamond; 203. Brazing material; 30. Steel rope. DETAILED DESCRIPTION

[0025] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0026] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0027] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0028] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0029] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0030] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0031] Similar to the understanding in the Patent Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0032] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0033] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] See also Figure 2-Figure 6 As shown, the utility model provides an anti-slip diamond brazing bead, including a bead base 10 and an abrasive layer 20 fixed on the outer surface of the bead base 10, the outer surface of the bead base 10 is provided with a spiral groove 101 along the circumferential direction; the abrasive layer 20 is arranged in the spiral groove 101, which includes a brazing material 203 and diamonds, and the diamonds are connected in the spiral groove 101 through the brazing material 203.

[0035] The above-mentioned spiral groove 101 is the outer surface of the beaded base 10 that protrudes outward in a spiral shape along the circumferential direction, which helps to strengthen the friction between the diamond and the beaded base 10, and is used to prevent the brazing material 203 from forming a liquid during the brazing process and causing the diamond to slip, so that the diamond is evenly distributed in the spiral groove 101, thereby improving the utilization rate of the diamond during the grinding process, and thus improving the grinding efficiency; and the spiral groove 101 is beneficial to the chip removal of the diamond brazing beads during grinding, preventing the chips from sticking to the diamond surface and affecting the grinding ability.

[0036] The depth of the spiral groove 101 can affect the removal of chips and waste during grinding. Preferably, the depth of the spiral groove 101 is 0.1-0.3 mm, which can effectively remove chips and waste, reduce cutting resistance and grinding temperature, optimize grinding quality, and reduce thermal damage and deformation of the surface.

[0037] The diamond is connected to the spiral groove 101 through the brazing material 203. In some embodiments, the brazing material 203 is provided in the spiral groove 101, a part of the diamond is embedded in the brazing material 203, and another part is exposed outside the brazing material 203. In some embodiments, the brazing material 203 is a point-shaped brazing point, and the diamond is connected to the spiral groove 101 through the brazing point. Through the brazing point, while maintaining the diamond holding force, the diamond of the diamond brazing bead can be exposed high, the contact area between the diamond and the grinding material is increased, and the diamond is fully contacted with the grinding material, which can improve the grinding efficiency, speed up the grinding speed, and reduce the processing time.

[0038] A further improvement of the above embodiment is that the diamonds can be connected by brazing points. The diamonds are connected by brazing points to form a relatively strong structure, which can increase the diamond holding force, form a stable grinding layer, increase the stability of the diamond brazing beads, reduce vibration and deformation during the grinding process, effectively increase the service life of the diamond brazing beads, and reduce the maintenance and replacement frequency of the rope saw. At the same time, the diamonds are connected by brazing points to form a tight grinding layer, reduce the gap between the diamonds and the grinding material, provide a more uniform grinding force distribution, reduce uneven wear on the grinding surface, and improve the grinding quality.

[0039] The diamonds are connected to the spiral groove 101 through the brazing material 203. In some embodiments, a layer of oily glue is evenly applied to the spiral groove 101, and then the diamonds are arranged on the oily glue. After the oily glue is slightly dry and the diamonds are firmly adhered to the glue, a layer of water-based glue is applied, and then the brazing material 203 is distributed to form a cold blank. Finally, the cold blank is placed in a brazing furnace, and the glue is fully removed through the brazing process. The diamonds are welded and connected to the spiral groove 101 to form an abrasive layer 20; in some embodiments, the abrasive layer 20 is mixed with the brazing material 203 and the diamonds. After that, it is distributed in the spiral groove 101, and then formed by brazing process, that is, a layer of oily glue is evenly coated in the spiral groove 101, and then the diamond and brazing material 203 are mixed and distributed on the matrix to form a cold blank, and finally the cold blank is placed in a brazing furnace, and the glue is fully removed by the brazing process, and the diamond is welded in the spiral groove 101 to form an abrasive layer 20. The diamond brazing beads after brazing have high diamond exposure and strong holding force, which can ensure that the diamond is fully in contact with the grinding material and improve the grinding efficiency. The brazing furnace in the above embodiment is preferably a slide rail type tubular furnace, so that the slide rail type tubular furnace is brazed, and hydrogen is introduced during work, and when the needle welding temperature is reached, it can be quickly cooled by moving its heating zone. Let the diamond be at high temperature for a short time, so that its strength decreases less, maintain the hardness of the diamond, and prevent the diamond from being greatly reduced under high temperature for a long time, and the phenomenon of diamond being fragile during grinding.

[0040] The diamonds mentioned above include Class A diamonds 202 and Class B diamonds 201 . The particle size of the Class A diamonds 202 is smaller than that of the Class B diamonds 201 . A plurality of Class A diamonds 202 are filled between two adjacent Class B diamonds 201 . The A-type diamond 202 has a small particle size and can provide a finer grinding surface. By filling the A-type diamond 202 between the B-type diamonds 201, the gaps between the B-type diamonds 201 can be filled, the unevenness of the grinding surface can be reduced, the grinding quality can be improved, the grinding marks and surface roughness can be reduced, and the finish and precision of the workpiece can be improved; at the same time, by filling the A-type diamond 202 between the B-type diamonds 201, the stability of the wire saw can be increased. The A-type diamond 202 can fill the gaps between the B-type diamonds 201 and enhance the overall structure of the diamond brazing beads. The enhanced stability can reduce the vibration and deformation of the diamond brazing beads during the grinding process and increase the service life of the diamond brazing beads. In addition, due to the different diamond particle sizes, the exposed height of the diamond after brazing is also different, which is conducive to chip removal and prevents chips from adhering to the diamond surface and affecting the grinding ability. Preferably, the Class A diamond 202 is a diamond with a grain size of 35 / 40, and the Class B diamond 201 is a diamond with a grain size of 40 / 45. The Class A diamond 202 with a grain size of 35 / 40 and the Class B diamond 201 with a grain size of 40 / 45 can provide a good exposure height difference, which is conducive to chip removal, can improve grinding efficiency, grinding quality, and improve the stability of the wire saw.

[0041] The outer surface of the beaded matrix 10 is provided with a stopper 102, and the stopper 102 is located at the bottom of the spiral groove 101. The stopper 102 is located at the bottom of the spiral groove 101, which can effectively prevent the brazing material 203 from overflowing and remaining in the brazing furnace during the brazing process. When the brazing material 203 melts into a liquid state at a high temperature, it will flow to the stopper 102 and stay there, and will not overflow into the brazing furnace, which can avoid the brazing material 203 overflowing into the brazing furnace and may generate smoke, gas or harmful substances; in addition, the brazing material 203 overflowing into the brazing furnace needs to be cleaned and processed, which will increase the complexity and time cost of the work. The cleaning process may require stopping the brazing work, waiting for the brazing furnace to cool down or using other methods for cleaning, thereby reducing work efficiency and productivity. The stopper 102 can effectively prevent the overflow of the brazing material 203 and maintain the stability and efficiency of the brazing process.

[0042] A wire saw comprises a steel wire 30 and beads, wherein the beads are the above-mentioned anti-slip diamond brazing beads, and the diamond brazing beads are arranged at intervals on the steel wire 30. In the wire saw made of the above-mentioned diamond brazing beads, the diamonds are evenly distributed in the spiral grooves 101 of the diamond brazing beads, and the grinding efficiency is high; and the spiral grooves 101 are conducive to chip removal of the diamond brazing beads during grinding, and the chip removal capacity is strong.

[0043] The diamond brazing beads are arranged on the steel rope 30 at intervals, and the firmness of the connection between the diamond brazing beads and the steel rope 30 can increase the overall strength of the wire saw. In some embodiments, the diamond brazing beads are threadedly connected to the steel rope 30 by inserting a layer of elastic support material on the outside of the steel rope, and the two end faces of the beads are covered to form an elastic support layer. In some embodiments, the diamond brazing beads are threadedly connected to the steel rope 30; that is, an internal thread 103 is provided on the inner surface of the diamond brazing beads, and an external thread is provided at the corresponding position of the steel rope, or a support sleeve is provided at the corresponding position of the steel wire, and the outer surface of the support sleeve is provided with an external thread, so that the diamond brazing beads are directly or indirectly threadedly connected to the steel rope. The threaded connection between the diamond brazing beads and the steel rope 30 can ensure a tight connection between the diamond brazing beads and the steel rope 30, provide a stable connection force, and enable the wire saw to withstand greater force and pressure during the grinding process, thereby avoiding the loosening, shaking, or even falling off of the diamond brazing beads during the grinding process, reducing energy loss and cutting resistance during the grinding process, thereby improving the cutting speed and effect; at the same time, the threaded connection can provide better fixing and alignment effects, making the cutting position of the diamond brazing beads more accurate and more stable, thereby improving the cutting accuracy and consistency.

[0044] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.

Claims

1. An anti-slip diamond brazing bead, comprising a bead base and an abrasive layer fixed on the outer surface of the bead base, characterized in that: The outer surface of the beaded matrix is ​​provided with a spiral groove along the circumferential direction; the abrasive grain layer is arranged in the spiral groove, and comprises brazing material and diamond, and the diamond is connected in the spiral groove through the brazing material.

2. The anti-slip diamond brazing beads according to claim 1, characterized in that: The depth of the spiral groove is 0.1-0.3 mm.

3. The anti-slip diamond brazing beads according to claim 1, characterized in that: The brazing material is a point-shaped brazing point, and the diamond is connected in the spiral groove through the brazing point.

4. The anti-slip diamond brazing beads according to claim 3, characterized in that: The diamonds are connected via brazing points.

5. The anti-slip diamond brazing beads according to claim 1, characterized in that: The abrasive grain layer is distributed on the spiral groove after being mixed with brazing material and diamond, and then formed by a brazing process.

6. The anti-slip diamond brazing beads according to claim 1, characterized in that: The diamonds include type A diamonds and type B diamonds. The particle size of type A diamonds is smaller than that of type B diamonds. A plurality of type A diamonds are filled between two adjacent type B diamonds.

7. The anti-slip diamond brazing beads according to claim 6, characterized in that: The Class A diamond is a diamond with a grain size of 35 / 40, and the Class B diamond is a diamond with a grain size of 40 / 45.

8. The anti-slip diamond brazing beads according to claim 1, characterized in that: The outer surface of the beaded base is provided with a flow stop platform, and the flow stop platform is located at the bottom of the spiral groove.

9. A wire saw using the anti-slip diamond brazing beads according to any one of claims 1 to 7, characterized in that: The invention also comprises a steel rope, on which the diamond brazing beads are arranged at intervals.

10. The wire saw according to claim 9, characterized in that: The diamond brazing beads are threadedly connected to the steel rope.

Images