CN219924656U - Novel taper hole grinding drill bit - Google Patents

Abstract

The utility model discloses a novel taper hole grinding drill bit, which comprises a taper drill bit body and a drill bit arranged at the top of the taper drill bit body, wherein the taper drill bit body and the drill bit are integrally manufactured, the top end of the drill bit is arranged in a taper mode, a rotary heat dissipation device is obliquely arranged in the left end of the taper drill bit body, a rotary heat dissipation device which is obliquely arranged is additionally arranged in the end, close to one end, of the taper drill bit body of the taper hole grinding drill bit, when the taper drill bit body rotates at a high speed to drill holes, the rotary heat dissipation device can be driven to synchronously rotate, when the rotary heat dissipation device rotates at a high speed, one end, exposed out of the exterior of the taper drill bit body, continuously blows external air into the taper drill bit body through an air inlet hole, and simultaneously blows out blown air, so that heat generated by the drill bit during drilling can be quickly blown out, heat generated by the drill bit during drilling can be quickly dissipated, and influences of heat failure on drilling and the drill bit are reduced.

Description

Novel taper hole grinding drill bit

Technical Field

The utility model belongs to the technical field of drill bits, and particularly relates to a novel taper hole grinding drill bit.

Background

The grinding bit is often used for machining taper holes, and holes with different diameters can be machined in one hole wall. The shape of the cutter is conical, the edge is conical, the diameter is gradually changed from small to large, and finally a conical incision is formed. Compared with a common drill bit, the hole machined by the grinding bit has a larger diameter range, and a plurality of holes with different diameters can be machined on the same hole wall.

However, when the conical hole grinding drill bit is used for drilling materials, the drill bit needs to rotate at a high speed to complete the drilling operation of the materials, a large amount of heat is generated by the drill bit in the drilling process, the heat is easily lost once the heat is accumulated in the drill bit, the drill bit is lost, the drilling effect is affected by the heat loss, and the drilled holes are easily not up to standard.

Disclosure of Invention

The utility model aims to provide a novel taper hole grinding drill bit, which aims to solve the problems that in the prior art, the drill bit can generate a large amount of heat in the drilling process, the heat is easily in failure when too much heat is accumulated in the drill bit, and the drilling effect is influenced when the heat is exhausted.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel taper hole grinding drill bit comprises a tapered drill body and a drill point arranged at the top of the tapered drill body, wherein the tapered drill body and the drill point are integrally manufactured, the top end of the drill point is arranged in a tapered manner, and a rotary heat dissipation device is obliquely arranged in the left end of the tapered drill body;

the rotary heat dissipation device comprises a metal fixing sheet, a metal heat dissipation air pipe and a heat dissipation pipe hole, wherein the heat dissipation pipe hole is obliquely arranged in the conical drill body close to the left end, the opening of the heat dissipation pipe hole is downward, the metal heat dissipation air pipe is inserted in the heat dissipation pipe hole, the top end of the metal heat dissipation air pipe is not in contact with the inner wall of the top end of the heat dissipation pipe hole, and meanwhile the metal heat dissipation air pipe is fixed in the heat dissipation pipe hole through the metal fixing sheet.

Preferably, the rotary heat dissipation device further comprises a choke pipe and an air inlet, the choke pipe is fixed at the bottom of the metal heat dissipation air pipe, the choke pipe is communicated with the inside of the metal heat dissipation air pipe, and meanwhile the choke pipe is parallel to the outer wall of the bottom of the conical drill body.

Preferably, the inside two or more fresh air inlets that are provided with of choke pipe outer wall, and the outer end of choke pipe adopts to seal the setting, and choke pipe and metal heat dissipation tuber pipe all adopt the copper alloy to make simultaneously.

Preferably, a plurality of drilling blade grooves are formed in the outer portion of the conical drill body from top to bottom at equal intervals, and the diameters of the drilling blade grooves are sequentially increased from top to bottom on the outer portion of the conical drill body.

Preferably, a drill bit fixing rod is arranged at the center of the bottom of the conical drill body, and an inwards concave fixing clamping groove is formed in the outer portion, close to the bottom end, of the drill bit fixing rod.

Preferably, the cross section shape of the drill bit fixing rod is regular hexagon, and a drilling and pin cutting groove is formed in the vertical inner portion of the front end of the conical drill body.

Compared with the prior art, the utility model provides a novel taper hole grinding drill bit, which has the following beneficial effects:

according to the utility model, the rotary heat dissipation device is added in the conical drill body of the grinding bit near one end, the bottom of the rotary heat dissipation device is exposed out of the bottom end of the conical drill body, when the conical drill body rotates at a high speed to drill, the rotary conical drill body can drive the rotary heat dissipation device to synchronously rotate, and when the rotary heat dissipation device rotates at a high speed, one end of the rotary heat dissipation device exposed out of the conical drill body continuously blows external air into the conical drill body through the air inlet hole and blows the blown air synchronously, so that heat generated by the drill during drilling can be blown out rapidly, and heat generated by the drill during drilling can be rapidly dissipated, and the influence of heat failure on drilling and the drill is reduced.

Drawings

Fig. 1 is a schematic perspective view of a novel burr drill of the present utility model.

Fig. 2 is a schematic plan view of a novel tapered hole grinding drill bit according to the present utility model.

Fig. 3 is a schematic cross-sectional view of a rotary heat dissipating device according to the present utility model.

In the figure: 1. a fixing slot; 2. a drill bit fixing rod; 3. rotating the heat sink; 4. a conical drill body; 5. drilling a blade groove; 6. drilling and cutting pin grooves; 7. a drill tip; 8. a wind blocking pipe; 9. an air inlet hole; 10. a metal fixing sheet; 11. a metal heat radiation air pipe; 12. and the heat dissipation pipe holes.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a novel taper hole grinding drill bit shown in fig. 1-3, which comprises a taper drill body 4 and a drill point 7 arranged at the top of the taper drill body 4, wherein the taper drill body 4 and the drill point 7 are integrally manufactured, meanwhile, the top end of the drill point 7 is arranged in a taper mode, a plurality of drilling blade grooves 5 are formed in the taper drill body 4 at equal intervals from top to bottom, the diameters of the drilling blade grooves 5 are sequentially increased from top to bottom outside the taper drill body 4, a drill bit fixing rod 2 is arranged at the center of the bottom of the taper drill body 4, an inwards concave fixing clamping groove 1 is formed in the position, close to the bottom, of the drill bit fixing rod 2, of the taper drill body 4, a drilling cutting pin groove 6 is formed in the vertical inner portion of the front end of the taper drill body 4, when the taper drill bit is installed, the taper drill bit is used, the locking mechanism of the electric drill bit is clamped in the fixing clamping groove 1 on the drill bit fixing clamping groove 2 at first, so that the installation operation of the taper drill bit is completed, the drill bit 7 is required to be attached to the position where the drill bit 7 is required to be started, and then the drill bit 7 is driven to rotate at high speed through the drill bit 4, and the drill bit material can be driven to rotate, and the drill bit material can be drilled at high speed through the drill bit material.

As shown in fig. 1 and 3, the rotary heat dissipating device 3 is obliquely arranged inside the left end of the conical drill body 4, the rotary heat dissipating device 3 comprises a metal fixing sheet 10, a metal heat dissipating air pipe 11 and a heat dissipating pipe hole 12, the heat dissipating pipe hole 12 is obliquely arranged inside the conical drill body 4 close to the left end, the opening of the heat dissipating pipe hole 12 is downward, the metal heat dissipating air pipe 11 is inserted into the heat dissipating pipe hole 12, the top end of the metal heat dissipating air pipe 11 is not contacted with the inner wall of the top end of the heat dissipating pipe hole 12, and meanwhile, the metal heat dissipating air pipe 11 is fixed inside the heat dissipating pipe hole 12 through the metal fixing sheet 10.

Further, rotatory heat abstractor 3 still includes and blocks tuber pipe 8 and fresh air inlet 9, the bottom at metal heat dissipation tuber pipe 11 is fixed to choke pipe 8, and choke pipe 8 and the inside intercommunication of metal heat dissipation tuber pipe 11, simultaneously choke pipe 8 is parallel with toper brill body 4 bottom outer wall, it is provided with two or more fresh air inlets 9 to block tuber pipe 8 outer wall inside, and choke pipe 8's outer end adopts the sealed setting, simultaneously choke pipe 8 and metal heat dissipation tuber pipe 11 all adopt the copper alloy to make, when the drill bit accomplishes the operation of boring the material through rotatory, high-speed rotatory drill bit can drive its inside metal heat dissipation tuber pipe 11 in step and rotate, thereby can drive the choke pipe 8 rotation of metal heat dissipation tuber pipe 11 extreme outer end, and form the blast effect, and the drill bit can produce a large amount of heat when high-speed drilling, the heat then can be through boring body and metal stator 10 real-time transmission to metal heat dissipation tuber pipe 11, and the inner that can blow out the air current in metal heat dissipation tuber pipe 11 through the fresh air inlet 9 source can be in time absorbed through the hole when the air current, thereby can reach the heat dissipation purpose when the drill bit is fast and the heat dissipation is blown out through the air hole is quick and the heat dissipation hole is reached.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a novel grind taper hole drill bit, includes toper brill body (4) and sets up bit (7) at toper brill body (4) top, and toper brill body (4) and bit (7) an organic whole make, bit (7) top adopts the toper to set up, its characterized in that simultaneously: a rotary heat dissipation device (3) is obliquely arranged in the left end of the conical drill body (4);

the rotary heat dissipation device (3) comprises a metal fixing plate (10), a metal heat dissipation air pipe (11) and a heat dissipation pipe hole (12), wherein the heat dissipation pipe hole (12) is obliquely arranged inside the conical drill body (4) close to the left end, the opening of the heat dissipation pipe hole (12) is downward, the metal heat dissipation air pipe (11) is inserted into the heat dissipation pipe hole (12), the top end of the metal heat dissipation air pipe (11) is not contacted with the inner wall of the top end of the heat dissipation pipe hole (12), and meanwhile, the metal heat dissipation air pipe (11) is fixed inside the heat dissipation pipe hole (12) through the metal fixing plate (10).

2. The novel burr hole drill bit of claim 1, wherein: the rotary heat dissipation device (3) further comprises an air blocking pipe (8) and an air inlet (9), the air blocking pipe (8) is fixed at the bottom of the metal heat dissipation air pipe (11), the air blocking pipe (8) is communicated with the inside of the metal heat dissipation air pipe (11), and meanwhile the air blocking pipe (8) is parallel to the outer wall of the bottom of the conical drill body (4).

3. The novel burr hole drill bit of claim 2, wherein: two or more air inlet holes (9) are formed in the outer wall of the choke tube (8), the outer end of the choke tube (8) is provided with a seal, and meanwhile, the choke tube (8) and the metal heat dissipation air tube (11) are both made of copper alloy.

4. The novel burr hole drill bit of claim 1, wherein: a plurality of drilling blade grooves (5) are formed in the outer portion of the conical drill body (4) from top to bottom at equal intervals, and the diameters of the drilling blade grooves (5) are sequentially increased from top to bottom on the outer portion of the conical drill body (4).

5. The novel tapered hole grinding drill bit as claimed in claim 4, wherein: the center of the bottom of the conical drill body (4) is provided with a drill bit fixing rod (2), and the outside of the drill bit fixing rod (2) close to the bottom end is provided with an inwards concave fixing clamping groove (1).

6. The novel tapered hole grinding drill bit according to claim 5, wherein: the cross section shape of the drill bit fixing rod (2) is regular hexagon, and a drilling and pin cutting groove (6) is formed in the vertical inner part of the front end of the conical drill body (4).