CN217290566U

CN217290566U - Hard alloy three-edge step drill bit for machining automobile parts

Info

Publication number: CN217290566U
Application number: CN202122623023.6U
Authority: CN
Inventors: 邹清松; 蔡志华; 张齐齐; 许锋; 余长元
Original assignee: WUHAN TYLLS TOOLS CO Ltd
Current assignee: WUHAN TYLLS TOOLS CO Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-08-26
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a carbide three sword bench drill bits for automobile parts processing, including through-hole part length, counter bore part length and cutter stalk portion, the tip of through-hole part length is equipped with through-hole part blade and through-hole part cell type, be equipped with counter bore part blade and counter bore part cell type on the counter bore part length, counter bore part cell type is connected with drill way chamfer part blade, the tip of drill way chamfer part blade is equipped with the groove tail end, cooling hole has been seted up to through-hole part cell type and counter bore part cell type department. The utility model discloses in, through-hole, upper portion pore-forming, drill way chamfer, a cutter one-time processing is accomplished, improves machining efficiency, reduces the cutter cost, and when the repeated coping of cutter, the machining precision of assurance hole size has improved the cutter and can the coping number of times, reduces cutter use cost, consequently can resources are saved.

Description

Hard alloy three-edge step drill bit for machining automobile parts

Technical Field

The utility model relates to a drill bit technical field especially relates to a three sword bench drill bits of carbide for automobile parts processing.

Background

The through-hole processing of part automobile parts is compound hole, and when traditional processing compound hole, generally use several cutter subsection processing, need frequently the tool changing, machining efficiency is lower, need adopt different cutters according to the shape in hole simultaneously, and cutter quantity and cost are higher, and the part through-hole needs connecting bolt, because the bolt end can not be higher than the part surface, and has the requirement to the orifice burr, consequently need use the drill bit processing of isostructure.

Therefore, the through hole, the counter bore at the upper part and the chamfer at the orifice of the part are processed and formed at one time, three cutters are not used for processing in a subsection mode, the processing efficiency can be effectively improved, and the cutter cost is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, the hard alloy three-edge step drill bit for machining the automobile parts is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a three sword bench drill bits of carbide for automobile parts processing, includes through-hole part length, counter bore part length and cutter stalk portion, the tip of through-hole part length is equipped with through-hole part blade and through-hole part cell type, be equipped with counter bore part blade and counter bore part cell type on the counter bore part length, counter bore part cell type is connected with drill way chamfer part blade, the tip of drill way chamfer part blade is equipped with the groove tail end, cooling hole has been seted up to through-hole part cell type and counter bore part cell type department.

Preferably, the cooling holes are recessed in the groove-shaped surfaces of the through hole portion and the counterbore portion.

Preferably, the partial length of the through hole, the partial length of the counter bore and the tool handle are made of polycrystalline diamond, the partial length of the through hole is provided with a lower through hole, the partial length of the counter bore is provided with a counter bore, and the tool handle is provided with a bore chamfer.

Preferably, the surface of the tool shank is provided with corrugated non-slip threads.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. this application is through-hole, upper portion pore-forming, drill way chamfer, and a cutter once processing is accomplished, improves machining efficiency, reduces the cutter cost, and when the repeated coping of cutter, the machining precision of assurance hole size has improved the cutter and can the coping number of times, reduces cutter use cost, consequently can resources are saved.

2. This application only needs to accord with the spot facing work demand of this processing form, all can adopt this structure through the drill bit more is applicable to the automobile parts trade, and the scope of adaptation is comparatively extensive, can bring the convenience for the processing operation.

Drawings

Fig. 1 shows a schematic view of an overall structure of a drill bit provided according to an embodiment of the present invention;

FIG. 2 illustrates a schematic diagram of a cooling hole structure provided in accordance with an embodiment of the present invention;

fig. 3 shows a schematic diagram of a shape of a tool machining product provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a via portion length; 2. a counterbore portion length; 3. a tool shank; 4. cutting edges of the through hole part; 5. the through hole part is groove-shaped; 6. a cutting edge of the counter bore part; 7. the counter bore part is of a groove shape; 8. chamfering a partial cutting edge of the orifice; 9. a groove tail end; 10. and cooling the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a hard alloy three-edge step drill bit for processing automobile parts comprises a through hole part length 1, a counter bore part length 2 and a cutter handle part 3, wherein a lower through hole is processed at the through hole part length 1, a counter bore is processed at the counter bore part length 2, a hole opening chamfer is processed at the cutter handle part 3, and corrugated anti-skidding grains are arranged on the surface of the cutter handle part 3, so that the cutter handle part 3 is more convenient and stable to install, the through hole part length 1, the counter bore part length 2 and the cutter handle part 3 are made of polycrystalline diamond materials, a through hole part cutting edge 4 and a through hole part groove type 5 are arranged at the end part of the through hole part length 1, a counter bore part cutting edge 6 and a counter bore part groove type 7 are arranged on the counter bore part length 2, the counter bore part groove type 7 is connected with a hole opening chamfer part cutting edge 8, a groove tail end 9 is arranged at the end part cutting edge 8 of the hole opening chamfer part cutting edge, and cooling holes 10 are arranged at the through hole part groove type 5 and the counter bore part groove type 7, .

Specifically, as shown in fig. 1, the cooling holes 10 are recessed in the surfaces of the through hole part groove type 5 and the counter bore part groove type 7, and the cooling holes 10 perform a heat dissipation effect, so that heat generated by the drill bit in use can be dissipated through the cooling holes 10.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a carbide three-edge step drill bit for automobile parts processing, includes through-hole part length (1), counter bore part length (2) and cutter stalk portion (3), its characterized in that, the tip of through-hole part length (1) is equipped with through-hole part blade (4) and through-hole part cell type (5), be equipped with counter bore part blade (6) and counter bore part cell type (7) on counter bore part length (2), counter bore part cell type (7) are connected with drill way chamfer part blade (8), the tip of drill way chamfer part blade (8) is equipped with groove tail end (9), cooling hole (10) have been seted up in through-hole part cell type (5) and counter bore part cell type (7) department.

2. The cemented carbide three-edged step drill for machining automobile parts as claimed in claim 1, wherein the cooling holes (10) are recessed in the surface of the through hole portion groove type (5) and the counter bore portion groove type (7).

3. The hard alloy three-edge step drill for machining automobile parts as claimed in claim 1, wherein the through hole part length (1), the counter bore part length (2) and the cutter handle part (3) are made of polycrystalline diamond, a lower through hole is machined at the through hole part length (1), a counter bore is machined at the counter bore part length (2), and an orifice chamfer is machined at the cutter handle part (3).

4. The cemented carbide three-edge step drill for machining automobile parts as claimed in claim 1, characterized in that the surface of the tool shank (3) is provided with corrugated non-slip threads.