CN221064559U - Chip separating drill with built-in cooling circulation - Google Patents

Abstract

The utility model discloses a chip separating drill with built-in cooling circulation, which comprises a chip separating drill bit, a connecting part and a drill bit handle part which are sequentially connected, wherein a cooling assembly is arranged in the drill bit handle part; the cooling assembly comprises two water pipelines, the tops of the two water pipelines are respectively provided with a mounting sleeve, the positions of the mounting sleeves correspond to water inlets, and the bottoms of the two water pipelines are provided with water outlets; according to the utility model, the water-cooling pipeline is arranged in the drill stem, the water-cooling mode is utilized to cool the inside of the drill stem, meanwhile, the water-cooling pipeline penetrates through the upper end and the lower end of the drill stem, water flows from the bottom of the water-cooling pipeline to the chip separating drill bit, the water-cooling is carried out on the drill bit rotating at high speed, and the water outlet at the bottom of the water-cooling pipeline guides the water to flow to the spiral direction of the chip separating groove of the drill bit, so that chips generated by drilling can be washed out, the chip separating drill bit can be cooled, the temperature of the drill bit can not be too high in the use process, and the service life of the drill bit is prolonged.

Description

Chip separating drill with built-in cooling circulation

Technical Field

The utility model relates to a chip dividing drill with a built-in cooling circulation.

Background

As society continues to develop, the variety of drill bits is becoming increasingly more and more, wherein chip-separating drills are a type of cutting tool for metal working, also called screw drill bits or core drills, which are usually made of high-speed steel or cemented carbide, having helical cutting edges, which are designed to be suitable for forming holes in a metal surface, and cutting edges, when the drill bit is rotated, gradually cut into and remove the metal material, thereby forming holes, and cutting edges of the chip-separating drill bits usually have a smaller pitch in order to better control the cutting process and avoid excessive cutting forces.

At present, the chip separation drill bit generally uses proper cooling lubricating liquid to reduce the friction and heat of the drill bit in the drilling process so as to prolong the service life, while the heat in the drill bit can be gradually increased in the high-speed rotation process of the chip separation drill bit, the cooling liquid reduces the friction and heat on the surface of the drill bit, the internal temperature is higher, the overall cooling effect is poor, the water cooling effect is good, but the post-treatment workload is large, and the use effect is easily influenced when the drill bit is in a high-temperature state for a long time.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a chip separating drill with built-in cooling circulation, which can realize the rapid cooling of the inside of the drill bit and the drill bit, ensure the better use effect of the drill bit and prolong the service life of the drill bit.

Based on the technical problems in the background art, the utility model provides a chip separating drill with built-in cooling circulation, which comprises a chip separating drill bit, a connecting part and a drill bit handle part which are sequentially connected, wherein a cooling assembly is arranged in the drill bit handle part;

The cooling assembly comprises two water pipes, the two water pipes are spirally arranged in the drill bit handle, the upper end and the lower end of each water pipe penetrate through the upper end and the lower end of the drill bit handle, the top of each water pipe is provided with a mounting sleeve, the mounting sleeve corresponds to a water inlet, the bottom of each water pipe is provided with a water outlet, and the water outlets are arranged at the bottom of the drill bit handle and located at two sides of the connecting part.

Preferably, the chip dividing drill bit comprises a cutting edge and a chip dividing groove, wherein the cutting edge is arranged at the end part of the chip dividing drill bit, and the chip dividing groove is spirally arranged on the outer surface of the chip dividing drill bit and connected with the tail end of the cutting edge.

Preferably, the whole water outlet is an elliptical inclined plane, a guide plate is arranged at the water outlet, and the guide plate and the water outlet are jointly attached to the bottom of the drill handle and are coplanar with the drill handle.

Preferably, the guide plate is a bevel surface on the inner wall of the water pipeline, and the water flow direction formed by the cooperation of the water outlet and the guide plate is the same as the spiral direction of the chip dividing groove.

Preferably, the bottom of the guide plate is located at the center of the water outlet, and the guide direction of the upper inclined curved surface of the guide plate is the same as the spiral direction of the chip dividing groove.

Preferably, the space between the two spiral winding water pipes is at least smaller than the inner diameter of the drill bit handle, and the vertical height of the two water pipes corresponds to the length of the drill bit handle.

Compared with the prior art, the chip separating drill with the built-in cooling circulation provided by the utility model adopts the technical scheme, and the following technical effects are achieved:

According to the utility model, the water pipe is arranged in the drill shank, the water cooling mode is utilized to cool the inside of the drill shank, meanwhile, the water pipe penetrates through the upper end and the lower end of the drill shank, water flows from the bottom of the water pipe to the chip dividing drill bit, water cooling is carried out on the drill bit rotating at high speed, the water outlet at the bottom of the water pipe guides water to be consistent to the spiral direction of the chip dividing groove of the drill bit, water flow to the chip dividing groove is facilitated, chips generated by drilling can be washed, the chip dividing drill bit can be cooled, the temperature of the drill bit can be prevented from being too high in the use process, and the service life of the drill bit is prolonged.

Drawings

FIG. 1 is a schematic overall perspective view of the present utility model;

FIG. 2 is a schematic plan view, partially in section, of the present utility model;

FIG. 3 is a schematic view of the bottom structure of the drill bit handle of the present utility model;

FIG. 4 is a schematic view of the whole structure of the water pipe according to the present utility model;

FIG. 5 is a schematic diagram of the whole structure of the water pipe of the present utility model;

Fig. 6 is a schematic view of the bottom section of the water pipe of the present utility model.

In the figure: 1. a chip dividing drill bit; 101. a cutting edge; 102. a chip dividing groove; 2. a connection part; 3. a drill shank; 4. a cooling assembly; 401. a water pipe; 402. installing a sleeve; 403. a water inlet; 404. a water outlet; 405. and a deflector.

Detailed Description

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-6, the utility model provides a chip drill with built-in cooling circulation, which comprises a chip drill bit 1, a connecting part 2 and a drill bit handle part 3 which are sequentially connected, wherein a cooling component 4 is arranged in the drill bit handle part 3;

Specifically, the cooling assembly 4 comprises two water pipes 401, the two water pipes 401 are spirally arranged in the drill bit handle 3, the upper end and the lower end of the two water pipes 401 penetrate through the upper end and the lower end of the drill bit handle 3, mounting sleeves 402 are arranged at the tops of the two water pipes 401, water inlets 403 correspond to the mounting sleeves 402, water outlets 404 are arranged at the bottoms of the two water pipes 401, and the water outlets 404 are arranged at the bottom of the drill bit handle 3 and located at two sides of the connecting portion 2.

Referring to fig. 2, the chip-separating drill 1 includes a cutting edge 101 and a chip-separating groove 102, the cutting edge 101 is provided at an end of the chip-separating drill 1, and the chip-separating groove 102 is spirally provided at an outer surface of the chip-separating drill 1 and is connected to a rear end of the cutting edge 101.

In this embodiment, the drill shank 3 is usually a mounting connection piece fixed at the tail end of the drill, and is usually a component mounted on a hand-held electric drill or a drilling machine and used for fixing the drill, so that the function of the mounting connection piece is not different from that of the mounting connection piece, in this embodiment, a double-spiral pipeline is opened in the drill shank 3, water is led into the drill shank 3 in the drilling process, so that water flows through the double-spiral pipeline to cool the interior of the drill shank 3, and simultaneously the water flows in the double-spiral pipeline can rotate at a high speed by the drill, so that the water flows are continuously pushed to the bottom of the water-led pipeline 401, and because the bottom of the pipeline is provided with a water outlet 404, the water flows are discharged from the water outlet 404 after passing through the double-spiral pipeline, the water flows can flush the drill position again when discharged, and the water flow direction when the water flows out of the water outlet 404 is consistent with the spiral direction of the chip dividing groove 102 in the drill, so that the water flows into the chip dividing groove 102 along with the rotation direction in the high-speed rotation process of the drill, and the chips generated in the drilling process are flushed, so that excessive chips in the drilling process are avoided, and the operation line is influenced.

According to the embodiment, through the cooling structure, not only is the inside of the drill shank 3 cooled, but also the drill part can be scoured and cooled, so that the whole drill can be cooled in time in the drilling process, and the drilling effect cannot be influenced due to overhigh temperature.

Referring to fig. 3 and 5, the water outlet 404 is an elliptical inclined plane, and a deflector 405 is disposed at the water outlet 404, and the deflector 405 and the water outlet 404 are jointly attached to the bottom of the drill stem 3 and are coplanar with the drill stem 3.

In this embodiment, the water outlet 404 is disposed on the bottom plane of the drill shank 3 and is parallel and coplanar with the water outlet, so that when the water flow in the water pipe 401 flows through the water outlet 404, the water flow is influenced by the baffle 405 disposed at the bottom and the inner wall of the water pipe 401, the water flow can be ejected along the direction of the baffle 405, and in the high-speed rotation process of the drill, the water flow can quickly spiral downwards along the rotation direction when flowing out of the water outlet 404, so that the water flow can be flushed along the spiral direction of the chip dividing groove 102 on the chip dividing drill 1, the chips generated in the chip dividing groove 102 can be flushed, the chip dividing drill 1 can be quickly cooled, the temperature of the chip dividing drill 1 in the rotation process can not be too high, and the sight obstruction can be cleared, so that a better operation space can be obtained.

Referring to fig. 4, the baffle 405 is a slant curved surface on the inner wall of the water pipe 401, and the water flow direction formed by the water outlet 404 and the baffle 405 together is the same as the spiral direction of the chip dividing groove 102.

Specifically, the bottom of the baffle 405 is located at the center of the water outlet 404, and the direction of the inclined curved surface on the baffle 405 is the same as the spiral direction of the chip dividing groove 102.

Specifically, the pitch of the spiral winding of the two water-passing pipes 401 should be at least smaller than the inner diameter of the drill shank 3, and the vertical height of the two water-passing pipes 401 corresponds to the length of the drill shank 3.

In this embodiment, the baffle 405 is set to the inclined curved surface on the inner wall of the water pipe 410, which can better guide the water flow, ensure that the water flow flows through the water outlet 404 more smoothly, and the set guiding direction is the same as the spiral direction of the chip dividing groove 102, so that the water flow can flow through the chip dividing groove 102 when the water flows out of the water outlet 404, and the spiral winding interval of the water pipe 401 is at least smaller than the inner diameter of the drill stem 3, so that the water pipe 3 can be accommodated in the drill stem 3, and the phenomenon that the water pipe 401 expands to cause cracks in the drill stem 3 and damage the whole drill is avoided, thereby influencing the production efficiency and increasing the production cost.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The chip dividing drill with the built-in cooling circulation is characterized by comprising a chip dividing drill bit (1), a connecting part (2) and a drill bit handle part (3) which are connected in sequence, wherein a cooling assembly (4) is arranged in the drill bit handle part (3);

The cooling assembly (4) comprises two water-passing pipes (401), the two water-passing pipes (401) are spirally arranged in the drill bit handle part (3), the upper end and the lower end of each water-passing pipe (401) penetrate through the upper end and the lower end of the drill bit handle part (3), the top of each water-passing pipe (401) is provided with a mounting sleeve (402), the positions of the mounting sleeves (402) correspond to water inlets (403), the bottoms of the two water-passing pipes (401) are provided with water outlets (404), and the water outlets (404) are arranged at the bottoms of the drill bit handle parts (3) and are positioned at two sides of the connecting parts (2).

2. Chip drill with built-in cooling circulation according to claim 1, characterized in that the chip drill bit (1) comprises a cutting edge (101) and a chip dividing groove (102), the cutting edge (101) is arranged at the end part of the chip drill bit (1), and the chip dividing groove (102) is spirally arranged on the outer surface of the chip drill bit (1) and is connected with the tail end of the cutting edge (101).

3. The chip drill with built-in cooling circulation according to claim 1, wherein the water outlet (404) is an elliptical inclined plane as a whole, a deflector (405) is arranged at the water outlet (404), and the deflector (405) and the water outlet (404) are jointly attached to the bottom of the drill shank (3) and are coplanar with the drill shank (3).

4. A chip drill with built-in cooling circulation according to claim 3, wherein the guide plate (405) is a bevel on the inner wall of the water pipeline (401), and the water flow direction formed by the water outlet (404) and the guide plate (405) in a co-operation mode is the same as the spiral direction of the chip groove (102).

5. The chip drill with built-in cooling circulation according to claim 4, wherein the bottom of the guide plate (405) is located at the center of the water outlet (404), and the direction of the inclined curved surface on the guide plate (405) is the same as the spiral direction of the chip dividing groove (102).

6. Chip drill with built-in cooling circulation according to claim 1, characterized in that the pitch of the spiral winding of two water channels (401) should be at least smaller than the inner diameter of the drill shank (3), and that the vertical height of two water channels (401) corresponds to the length of the drill shank (3).