CN218286177U

CN218286177U - Diamond drill bit convenient for heat dissipation

Info

Publication number: CN218286177U
Application number: CN202221419458.7U
Authority: CN
Inventors: 周存刚; 姚景坡
Original assignee: Hebei Dingyi Tools Co ltd
Current assignee: Hebei Dingyi Tools Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2023-01-13
Anticipated expiration: 2032-06-07

Abstract

The utility model provides a diamond drill bit convenient for heat dissipation, which belongs to the technical field of drill bits and comprises a base body, a connecting nut, a diamond tool bit and a plurality of heat dissipation hole groups, wherein the base body is cylindrical, and one end of the base body is sealed; the connecting nut is arranged at one end of the seal of the substrate, and the diamond tool bit is arranged at the opening end of the substrate; each radiating hole group is uniformly arranged on the base body along the circumferential direction of the base body, each radiating hole group comprises a plurality of radiating holes, and the plurality of radiating holes of each radiating hole group are obliquely arranged on the side wall expansion surface of the base body. The utility model provides a diamond bit convenient to heat dissipation's beneficial effect is: through setting up each thermovent group and including a plurality of louvres, the louvre of each thermovent group inclines to arrange on the lateral wall expansion face of base member, compares in traditional with the direction of height of group's louvre along the base member and arranges, when guaranteeing louvre quantity for the distance increase between the louvre has improved the structural strength of base member.

Description

Diamond drill bit convenient for heat dissipation

Technical Field

The utility model belongs to the drill bit field, concretely relates to diamond bit convenient to heat dissipation.

Background

The diamond drill bit is mainly used for drilling holes on hard articles such as ceramics, glass and the like, and because the surface hardness of the articles is higher, the common steel drill bit cannot be used for drilling holes normally, and the hardness of the diamond drill bit is higher than that of the ceramics and the glass, the diamond drill bit can be used for drilling holes on the hard articles.

In the prior art, the diamond drill bit is easy to scald in the drilling process and damage the diamond tool bit and the matrix, and aiming at the condition, the current adopted measure is to arrange heat dissipation holes on the matrix of the diamond drill bit so as to achieve the purpose of heat dissipation.

However, when the heat dissipation holes are formed sparsely, it is difficult to achieve the desired heat dissipation effect, and the dense heat dissipation holes will destroy the structural strength of the substrate.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a diamond bit convenient to heat dissipation aims at solving the difficult radiating problem of diamond bit and guarantees diamond bit's structural strength simultaneously.

In order to achieve the purpose, the utility model adopts the technical proposal that: the diamond drill bit comprises a base body, a connecting nut, a diamond tool bit and a plurality of radiating hole groups, wherein the base body is cylindrical, one end of the base body is sealed and arranged, the connecting nut is arranged at the sealed end of the base body, and the diamond tool bit is arranged at the open end of the base body. Each radiating hole group is uniformly arranged on the base body along the circumferential direction of the base body, each radiating hole group comprises a plurality of radiating holes, and the plurality of radiating holes of each radiating hole group are obliquely arranged on the side wall expansion surface of the base body.

In a possible implementation manner, the edge of each heat dissipation hole is chamfered.

In a possible implementation manner, each heat dissipation hole is a strip-shaped hole.

In a possible implementation manner, the base body comprises a cylinder body and a sealing plate fixedly arranged at one end of the cylinder body, the sealing plate is circular, and the diameter of the sealing plate is not larger than the outer diameter of the cylinder body; one end of the connecting nut is welded on the closing plate.

In a possible implementation manner, a plurality of exhaust holes are formed in the sealing plate.

In a possible implementation manner, an exhaust hood is pivotally arranged on the sealing plate, the exhaust hood is in a cylindrical shape with one end sealed, a cavity is formed between the exhaust hood and the sealing plate, and each exhaust hole hood is arranged in the cavity; the one end that sets up of sealing of exhaust hood is equipped with the blast pipe, the blast pipe can be connected with outside negative pressure pipeline, just the one end that sets up of sealing of exhaust hood still is equipped with the via hole, coupling nut wears to pass through the via hole stretches out the outside of exhaust hood.

In a possible implementation manner, a pivoting groove is formed in the sealing plate, and the cross section of the pivoting groove is in a shape like a Chinese character 'tu'; and a pivoting block is arranged at one end of the opening of the exhaust hood, the shape of the pivoting block corresponds to that of the pivoting groove, and the pivoting block is arranged in the pivoting groove.

In a possible implementation manner, a sealing strip is arranged on the side wall of the via hole, the connecting nut is a cylindrical nut, and when the connecting nut is inserted into the via hole, the sealing strip is abutted to the side wall of the connecting nut.

In one possible implementation, the diamond segments comprise a plurality of diamond segments, each of which is uniformly and spaced apart along the circumference of the substrate.

In one possible implementation, the other end of the diamond block is provided with a plurality of grooves relative to the end connected with the substrate.

The utility model provides a diamond bit convenient to heat dissipation's beneficial effect is: compared with the prior art, the utility model provides a diamond bit convenient to heat dissipation through setting up a plurality of thermovent groups, can be convenient for the inside hot-air outflow of diamond bit, and then reach the radiating purpose of diamond bit of being convenient for.

Furthermore, each radiating hole group comprises a plurality of radiating holes, the radiating holes of each radiating hole group are arranged on the side wall expansion surface of the base body in an inclined mode, and compared with the traditional mode that the radiating holes of the same group are arranged along the height direction of the base body, the number of the radiating holes is guaranteed, meanwhile, the distance between the radiating holes is increased, and the structural strength of the base body is improved.

Drawings

FIG. 1 is a schematic view of a diamond drill bit convenient for heat dissipation according to an embodiment of the present invention

Fig. 2 is a schematic structural diagram of a diamond drill bit facilitating heat dissipation according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a base body according to a second embodiment of the present invention;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural view of an exhaust hood according to a second embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;

description of reference numerals:

1. a base; 2. a connecting nut; 3. a diamond grinding block; 4. an exhaust hood;

101. closing the plate; 102. heat dissipation holes; 103. an exhaust hole; 104. a pivoting slot;

301. a groove;

401. an exhaust pipe; 402. a pivot block; 403. a via hole; 404. a sealing strip.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example one

As shown in fig. 1, the diamond drill bit convenient for heat dissipation provided by the present invention will now be described. Diamond bit convenient to heat dissipation, including base member 1, coupling nut, diamond segments and a plurality of radiating hole group, base member 1 wherein becomes cylindricly, and the one end of base member 1 seals the setting, and coupling nut sets up the one end of sealing at base member 1, and the open end of base member 1 is located to diamond segments. Each of the plurality of heat dissipation hole groups is uniformly disposed on the base 1 along the circumferential direction of the base 1, and each of the plurality of heat dissipation hole groups includes a plurality of heat dissipation holes 102, and the plurality of heat dissipation holes 102 of each of the plurality of heat dissipation hole groups are arranged in an inclined manner on the side wall expansion surface of the base 1.

The diamond drill bit convenient to heat dissipation that this embodiment provided is beneficial effect is: compared with the prior art, the radiating diamond bit of being convenient for that this embodiment provided, through setting up a plurality of thermovent groups, the inside hot-air outflow of diamond bit of can being convenient for, and then reach the radiating purpose of diamond bit of being convenient for.

Furthermore, through setting up a plurality of louvres 102 in a louvre group, the louvre 102 of each louvre group inclines to arrange on the lateral wall expansion face of base member 1, compare with traditional with group louvre 102 and arrange along the direction of height of base member 1, when guaranteeing louvre 102 quantity, make the distance increase between louvre 102 to the structural strength of base member 1 has been improved.

Based on the above design concept, in the diamond bit convenient for heat dissipation of this embodiment, base member 1 includes the barrel and sets firmly shrouding 101 in barrel one end, and in this embodiment, the shrouding welding is in the one end of barrel. The plate 101 is circular and the diameter of the plate 101 is the same as the outside diameter of the barrel. Of course, the diameter of the sealing plate 101 may be smaller than the outer diameter of the barrel, but the diameter of the sealing plate 101 is larger than the inner diameter of the barrel, so that the sealing plate 101 can be easily welded to the end face of the barrel.

In this embodiment. One end of the connecting nut 2 is welded on the closing plate 101, and the axis of the threaded hole of the connecting nut 2 and the axis of the base body 1 are coincided to be the same straight line. The arrangement of the connecting nut 2 enables the diamond drill bit to be installed in a threaded mode with an external driving device, and the diamond drill bit is convenient and fast to use.

In addition, the edges of the heat dissipation holes 102 are chamfered, so that the edges of the heat dissipation holes 102 become smoother, thereby preventing the edges of the heat dissipation holes 102 from rubbing against the hole wall during the rotation of the diamond drill, which causes the serious abrasion of the heat dissipation holes of the base 1, and also making the heat dissipation holes 102 more beautiful.

Preferably, each of the louvers 102 in this embodiment is formed as a strip-shaped hole, and a length direction of the strip-shaped hole is arranged along a height direction of the base 1. Known by the operating principle of diamond bit, when the object of waiting to bore is bored, its waste material that is amputated can be preserved inside diamond bit's base member 1, in case the waste material card is inside base member 1, accessible louvre 102 stretches into the inside supplementary waste material discharge of base member 1 with the instrument this moment. The heat dissipation holes 102 are arranged in a strip shape, so that the up-and-down movement space of the auxiliary tool is larger, and the auxiliary tool is easier to discharge materials clamped in the base body 1 in an auxiliary manner.

In another possible implementation manner, the length directions of the louvers 102 may be set not along the height direction of the base 1 but inclined on the developed surface of the sidewall of the base 1, and the length directions of the louvers 102 are parallel to each other.

In order to further improve the heat dissipation of the diamond drill, the cover plate 101 is provided with a plurality of air discharge holes 103. Specifically, in the present embodiment, the number of the exhaust holes 103 is eight, and the exhaust holes 103 are uniformly arranged around the center of the sealing plate 101. It should be noted that the number of the exhaust holes 103 is not limited to eight, and may be one, two, three, or other suitable numbers. Moreover, due to the provision of the exhaust holes 103, even if a large amount of waste is stored in the base body 1 to close all the heat dissipation holes 102, the hot air in the base body 1 can be exhausted through the exhaust holes 103.

Finally, the diamond segments comprise a plurality of diamond segments 3, each diamond segment 3 being evenly and spaced circumferentially along the substrate 1. Specifically, the diamond segments are eight in number. The interval setting of diamond abrasive brick can improve the roughness of diamond segments's working face, and the diamond bit of being convenient for punches on hard object. In order to further improve the roughness of the working surface of the diamond tip, the other end of the diamond segments 3 is provided with a plurality of grooves 301 with respect to the end connected to the substrate 1. Specifically, two grooves 301 are formed on the working surface of each diamond grinding block 3. Of course, the number of the grooves 301 is not limited to two, and may be one, three, four, or other suitable numbers.

Example two

As shown in fig. 2, in the present embodiment, the sealing plate 101 is pivotally provided with the exhaust hood 4, the exhaust hood 4 is in a tubular shape with one end sealed, a cavity is formed between the exhaust hood 4 and the sealing plate 101, and each exhaust hole 103 is covered in the cavity. An exhaust pipe 401 is provided at one end of the seal of the exhaust hood 4, and each exhaust pipe 401 is connectable to an external negative pressure pipe. In the present embodiment, eight exhaust pipes are provided, but the number of exhaust pipes is not limited to eight, and may be any other suitable number such as one, two, or three.

In addition, in this embodiment, the connection nut is a cylindrical nut, and a through hole 403 is formed at one end of the seal of the exhaust hood 4, and the connection nut passes through the through hole 403 and extends out of the exhaust hood 4.

After the negative pressure pipeline is connected, hot air in the base body 1 enters the cavity through the exhaust holes 103 and is finally exhausted from the negative pressure pipeline, and cold air outside the base body 1 enters the inside of the base body 1 through the heat dissipation holes 102, so that circulation of air inside and outside the base body 1 is accelerated, and the heat dissipation effect of the diamond drill bit is improved. Certainly, because need connect the negative pressure pipeline for when the length of negative pressure pipeline was restricted, can influence the diamond bit of being convenient for heat dissipation in this embodiment when the deep hole is bored, therefore the diamond bit of being convenient for heat dissipation of this embodiment is more convenient for use when the drilling depth is less hole, and the heat dissipation demand is bigger.

At the same time, the pivotable arrangement of the exhaust hood 4 is such that, when the base body rotates, the exhaust hood 4 can remain stationary as a result of pivoting relative to the base body 1, and the negative pressure line is thus prevented from becoming entangled in external drive devices. In the present embodiment, the coupling nut is selected as a cylindrical nut, which facilitates the pivoting of the exhaust hood 4 relative to the coupling nut and prevents interference between the exhaust hood 4 and the coupling nut.

Referring to fig. 3, 4, 5 and 6, a pivoting slot is formed on the top surface of the sealing plate 101, and the cross section of the pivoting slot is in a shape of a "convex" and the pivoting slot is circular. The open end of the exhaust hood 4 is formed with a pivot block 402 having a shape corresponding to the shape of the pivot groove 104, and the pivot block 402 is inserted into the pivot groove 104. The arrangement of the pivot slot and the pivot block can facilitate the rotation of the exhaust hood 4 relative to the base body 1. Meanwhile, the exhaust hood 4 is fixed to the closing plate 101 by providing the pivoting grooves and the pivoting blocks with a "convex" shape in cross section. It should be noted that, in order to prevent interference between the pivoting of the exhaust hood 4 relative to the base 1 and the pivoting of the base 1 during operation of the diamond drill, the center of the pivot slot is the center of the top surface of the sealing plate 101.

Finally, in order to improve the exhaust effect of the exhaust pipe 401 on the hot air in the base body 1, a sealing strip 404 is adhered to the side wall of the through hole 403, and when the connecting nut is inserted into the through hole 403, the sealing strip 404 abuts against the side wall of the connecting nut. So that ambient air cannot enter the cavity through the gap between the via 403 and the coupling nut. Thereby facilitating the hot air in the matrix 1 to enter the cavity and be discharged under the action of the negative pressure pipeline.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A diamond drill bit facilitating heat dissipation, comprising:

the base body (1), the base body (1) is cylindrical, and one end of the base body (1) is sealed;

the connecting nut is arranged at one end of the seal of the base body (1);

the diamond tool bit is arranged at the opening end of the substrate (1);

the heat dissipation structure comprises a plurality of heat dissipation hole groups, wherein each heat dissipation hole group is uniformly arranged on a base body (1) along the circumferential direction of the base body (1), each heat dissipation hole group comprises a plurality of heat dissipation holes (102), and the plurality of heat dissipation holes (102) of each heat dissipation hole group are obliquely arranged on the side wall expansion surface of the base body (1).

2. The diamond drill bit facilitating heat dissipation according to claim 1, wherein edges of each of the heat dissipation holes (102) are chamfered.

3. The diamond drill bit facilitating heat dissipation according to claim 1, wherein each of the heat dissipation holes (102) is a stripe-shaped hole.

4. The diamond drill bit facilitating heat dissipation according to claim 1, wherein the base body (1) comprises a cylinder body and a sealing plate (101) fixedly arranged at one end of the cylinder body, the sealing plate (101) is circular, and the diameter of the sealing plate (101) is not larger than the outer diameter of the cylinder body; one end of the connecting nut (2) is welded on the closing plate (101).

5. A diamond drill bit facilitating heat dissipation according to claim 4, characterized in that the sealing plate (101) is provided with a plurality of vent holes (103).

6. The diamond drill bit convenient for heat dissipation according to claim 5, wherein the sealing plate (101) is pivotally provided with an exhaust hood (4), the exhaust hood (4) is in a cylindrical shape with one end sealed, a cavity is formed between the exhaust hood (4) and the sealing plate (101), and each exhaust hole (103) is covered in the cavity;

the one end that sets up of sealing of exhaust hood (4) is equipped with blast pipe (401), blast pipe (401) can be connected with outside negative pressure pipeline, just the one end that sets up of sealing of exhaust hood (4) still is equipped with via hole (403), coupling nut wears to reach via hole (403) the outside of exhaust hood (4).

7. The diamond drill bit facilitating heat dissipation according to claim 6, wherein the sealing plate (101) is provided with a pivot groove, and the cross section of the pivot groove is in a shape like a Chinese character 'tu';

and a pivoting block (402) is arranged at one end of the opening of the exhaust hood (4), the shape of the pivoting block corresponds to that of the pivoting groove (104), and the pivoting block (402) is arranged in the pivoting groove (104).

8. A diamond drill bit facilitating heat dissipation according to claim 6, characterized in that a sealing strip (404) is provided on the sidewall of the via hole (403), the connection nut is a cylindrical nut, and when the connection nut is inserted into the via hole (403), the sealing strip (404) abuts against the sidewall of the connection nut.

9. A diamond drill bit facilitating heat dissipation according to claim 1, characterized in that the diamond segments comprise a plurality of diamond segments (3), each diamond segment (3) being evenly and spaced along the circumference of the substrate (1).

10. A diamond drill bit facilitating heat dissipation according to claim 9, characterized in that the other end of the diamond block (3) is provided with a plurality of grooves (301) with respect to the end connected to the substrate (1).