Single-sided groove diamond tool bit

Abstract

The utility model provides a single-sided groove diamond tool bit which comprises a tool bit plate body and a tool bit plate located on the tool bit plate body, an arc-shaped guide groove is formed in the middle of one side of the tool bit plate, and the two ends of the arc-shaped guide groove extend to the outer edge of the tool bit plate. The depth of the arc-shaped guide groove is smaller than one third of the thickness of the tool bit plate and larger than one fourth of the thickness of the tool bit plate. The arc-shaped guide groove and the auxiliary groove are formed in the tool bit plate, so that the tool bit has the advantage of smoother and more thorough chip removal, the resistance of the tool bit during cutting is greatly reduced, the cutting sharpness of the tool bit is improved, and the cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond tool bits, in particular to a single-sided groove diamond tool bit. Background Art

[0002] Diamond saw blades produce a large number of debris of different sizes during the cutting process, which are in the form of granules or powder (related to the material of the cut object). In order to improve product performance and reduce cutting resistance, chip guide grooves are often set on both sides of the diamond blade head, which are set oppositely or staggered. When the diamond saw blade rotates at high speed, the chip guide groove will discharge the chips generated in the cutting groove, improving the smoothness of cutting.

[0003] At present, the utility model with publication number CN217573533U proposes a single-sided groove diamond cutter head and a diamond saw blade composed of the same, belonging to the technical field of diamond saw blades, which includes a cutter head body, a diamond particle alloy powder cutter head sintered on the cutter head body, and two rectangular guide grooves formed on the diamond particle alloy powder cutter head, the two rectangular guide grooves are located on the same side of the cutter head body, the depth of the rectangular guide groove is greater than one-third of the thickness of the diamond particle alloy powder cutter head and less than one-half of the thickness of the diamond particle alloy powder cutter head, because the rectangular guide grooves are arranged on the same side of the cutter head body, the setting depth of the rectangular guide grooves is increased to ensure that large debris passes smoothly, thereby improving the cutting rate and sharpness; and the rectangular guide grooves do not involve the area of ​​the welding part, the welding strength is guaranteed, and the effective service life of the saw blade is greatly improved, thereby solving the problem of chip removal blockage caused by the chip removal guide groove being too shallow, and avoiding product failure or safety hazards caused by blockage.

[0004] However, the diamond cutter head technology disclosed in the above-mentioned prior art still has some shortcomings: 1. The two rectangular guide grooves arranged on a single cutter head still have the problem of incomplete chip removal, that is, the cutting chips are easy to remain in the guide groove, and the residue makes the volume of the debris accelerate to increase, and then be discharged. This change process will periodically increase the resistance of the cutter head, and then accelerate the wear of the cutter head; 2. The debris is easy to be mixed between the cutter heads, and the debris is difficult to discharge and will affect the sharpness of the cutter head cutting, and then affect the cutting efficiency; 3. The depth of the guide groove is deep, resulting in the local thickness of the cutter head becoming thinner, which will affect the strength of the entire cutter head, that is, it is easy to break during cutting.

[0005] To this end, the utility model provides a single-sided groove diamond tool head. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a single-sided groove diamond tool head to solve the problems raised in the above-mentioned background technology. The utility model has the advantages of large chip discharge, good heat dissipation effect and higher strength.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a single-sided groove diamond cutter head, including a cutter head plate body and a cutter head plate located on the cutter head plate body, an arc-shaped guide groove is opened in the middle of one side of the cutter head plate, and the two ends of the arc-shaped guide groove extend to the outer edge of the cutter head plate, and the depth of the arc-shaped guide groove is less than one-third of the thickness of the cutter head plate and greater than one-quarter of the thickness.

[0008] Furthermore, the width of the middle portion of the arc-shaped guide groove is smaller than the width of the two end portions.

[0009] Furthermore, one side of the cutter head plate is provided with auxiliary grooves located on both sides of the arc-shaped guide groove and symmetrically arranged, one end of the auxiliary groove is connected to one end of the cutter head plate and the other end is connected to the arc-shaped guide groove.

[0010] Furthermore, the depth of the auxiliary groove is smaller than the depth of the arc-shaped guiding groove.

[0011] Furthermore, the width of the auxiliary groove gradually increases from one end of the cutter head plate to the arc-shaped guide groove.

[0012] Furthermore, the auxiliary groove is arc-shaped and the outer arc surface faces the bottom of the cutter head plate.

[0013] Furthermore, the minimum distance from the bottom of the arc guide groove to the bottom of the cutter head plate is greater than the thickness of the cutter head plate, the minimum width within the arc guide groove is greater than twice the thickness of the cutter head plate and less than three times the thickness of the cutter head plate, and the distance between the mouth of the arc guide groove and an adjacent end on the cutter head plate is greater than twice the thickness of the cutter head plate.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides an arc-shaped guide groove on the cutter head plate, and the opening end of the arc-shaped guide groove is located at the outer edge of the cutter head plate. This arrangement makes the fluidity of the debris in the arc-shaped guide groove smoother, greatly reducing the resistance of the cutter head to cutting.

[0016] 2. The utility model provides auxiliary grooves which are symmetrically distributed and connected to the arc-shaped guide groove on the cutter head plate. The auxiliary grooves are used to quickly discharge debris mixed between adjacent cutter heads, thereby improving the cutting sharpness of the cutter heads and greatly improving the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a single-sided groove diamond cutter head of the utility model;

[0018] Figure 2 for Figure 1 The main view of

[0019] Figure 3 It is a partial schematic diagram of the connection between a single-sided groove diamond cutter head and a cutter disc of the utility model;

[0020] In the figure: 1, cutter head body; 2, cutter head plate; 21, arc-shaped guide groove; 22, auxiliary groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a single-sided groove diamond cutter head, which is installed on the outer periphery of the cutter disc and is evenly distributed in the circumferential direction when in use. Specifically, it includes a cutter head body 1 and a cutter head plate 2 located on the cutter head body 1. The cutter head plate 2 is made of diamond particles. When the cutter disc rotates, the end of the cutter head plate 2 plays a cutting role.

[0023] In the present technical solution, an arc-shaped guide groove 21 is opened in the middle of one side of the cutter head plate 2, and one cutter head plate 2 corresponds to one arc-shaped guide groove 21. Both ends of the arc-shaped guide groove 21 extend to the outer edge of the cutter head plate 2. When the cutter head plate 2 is cutting, the debris formed in the cutting groove will be guided into the inside and then discharged outward. Since the arc-shaped guide groove 21 is long and has a certain inclination angle, not only will the arc-shaped guide groove 21 not accumulate debris, but the discharge of debris can also be accelerated.

[0024] The depth of the arcuate guide groove 21 is less than one-third of the thickness of the cutter head plate 2 and greater than one-quarter of the thickness. The setting of the arcuate guide groove 21 improves the chip removal efficiency and thoroughness compared to the two separate guide groove structures in the prior art. At the same time, the depth of the arcuate guide groove 21 becomes shallower than that of the prior art, thereby improving the strength of the entire cutter head plate 2.

[0025] In this embodiment, the width of the middle part of the arc guide groove 21 is smaller than the width of the two end parts. The purpose of this arrangement that makes the middle part of the arc guide groove 21 narrower is to further avoid the accumulation of debris in the arc guide groove 21. In addition, the width of the two ends of the arc guide groove 21 is widened to improve the smoothness of chip removal.

[0026] Furthermore, one side of the cutter head plate 2 is provided with auxiliary grooves 22 which are located on both sides of the arc guide groove 21 and are symmetrically arranged. One end of the auxiliary groove 22 is connected to one end of the cutter head plate 2 and the other end is connected to the arc guide groove 21. It should be noted that the entrance of the auxiliary groove 22 is located near the bottom of the cutter head plate 2, so as to facilitate the discharge of accumulated chips between adjacent cutter head plates 2 and improve the cutting sharpness of the cutter head plate 2. The auxiliary groove 22 is arc-shaped and the outer arc surface faces the bottom of the cutter head plate 2. This arrangement has the effect of increasing the contact area with the debris and reducing the wear rate of the auxiliary groove 22.

[0027] Furthermore, the depth of the auxiliary groove 22 is less than the depth of the arc-shaped guide groove 21 . This setting aims to reduce the flow of debris in the arc-shaped guide groove 21 into the auxiliary groove 22 near the non-working surface of the cutter head plate 2 .

[0028] In this embodiment, the width of the auxiliary groove 22 gradually increases from one end of the cutter head plate 2 to the arc-shaped guide groove 21 . This arrangement can effectively avoid chip accumulation at the intersection of the auxiliary groove 22 and the arc-shaped guide groove 21 .

[0029] In this embodiment, the minimum distance from the bottom of the arc guide groove 21 to the bottom of the cutter head plate 2 is greater than the thickness of the cutter head plate 2, the minimum width in the arc guide groove 21 is greater than twice the thickness of the cutter head plate 2 and less than three times the thickness of the cutter head plate 2, and the distance between the mouth of the arc guide groove 21 and the adjacent end on the cutter head plate 2 is greater than twice the thickness of the cutter head plate 2. This setting determines the position of the arc guide groove 21 on the cutter head plate 2, thereby further improving the strength of the cutter head plate 2.

[0030] Working principle: The cutter head body 1 is fixedly installed on the external cutter disc, and then ensure that the openings of the arc guide grooves 21 on adjacent cutter head bodies 1 are facing opposite directions. When the cutter disc is controlled to rotate and cut, one end of the cutter head plate 2 performs a cutting action, and the resulting cuttings will enter the arc guide groove 21, and then be discharged from both ends of the arc guide groove 21. During cutting, the amount of chips discharged at the rear end of the arc guide groove 21 is greater than the amount of chips discharged at the front end, thereby increasing the chip removal speed. The debris mixed between adjacent cutter head plates 2 will enter and merge into the arc guide groove 21 through the auxiliary groove 22, ensuring that there are no inclusions between the adjacent cutter head plates 2, thereby improving the sharpness of the cutting of the cutter head plate 2.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A single-sided groove diamond bit, comprising a bit body (1) and a bit plate (2) located on the bit body (1), characterized in that: An arc-shaped guide groove (21) is provided in the middle of one side of the cutter head plate (2), and both ends of the arc-shaped guide groove (21) extend to the outer edge of the cutter head plate (2), and the depth of the arc-shaped guide groove (21) is less than one third of the thickness of the cutter head plate (2) and greater than one quarter of the thickness.

2. A single-sided groove diamond tool head according to claim 1, characterized in that: The width of the middle portion of the arc-shaped guide groove (21) is smaller than the width of the two end portions.

3. A single-sided groove diamond tool head according to claim 2, characterized in that: One side of the cutter head plate (2) is provided with auxiliary grooves (22) located on both sides of the arc-shaped guide groove (21) and arranged symmetrically, one end of the auxiliary groove (22) is connected to one end of the cutter head plate (2) and the other end is connected to the arc-shaped guide groove (21).

4. A single-sided groove diamond tool head according to claim 3, characterized in that: The depth of the auxiliary groove (22) is smaller than the depth of the arc-shaped guide groove (21).

5. The single-sided groove diamond tool head according to claim 4, characterized in that: The width of the auxiliary groove (22) gradually increases from one end of the cutter head plate (2) to the arc-shaped guide groove (21).

6. The single-sided groove diamond tool head according to claim 3, characterized in that: The auxiliary groove (22) is arc-shaped and the outer arc surface faces the bottom of the cutter head plate (2).

7. The single-sided groove diamond tool head according to claim 6, characterized in that: The minimum distance from the bottom of the arc-shaped guide groove (21) to the bottom of the cutter head plate (2) is greater than the thickness of the cutter head plate (2), the minimum width in the arc-shaped guide groove (21) is greater than twice the thickness of the cutter head plate (2) and less than three times the thickness of the cutter head plate (2), and the distance between the mouth of the arc-shaped guide groove (21) and an adjacent end on the cutter head plate (2) is greater than twice the thickness of the cutter head plate (2).

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