Efficient chip removal drill bit

Abstract

The utility model provides an efficient chip removal drill bit which relates to the technical field of drill bits and comprises a drill bit body, a plurality of chip removal holes are formed in the outer surface of the drill bit body at equal intervals, a plurality of crushing cutters are arranged at the position, close to the bottom, of the inner surface of the drill bit body, and the crushing cutters are arranged in a staggered mode. A chip removal assembly is arranged in the drill bit main body; and the chip removal assembly comprises a drill rod, a spiral piece is arranged on the outer surface of the drill rod, and a mounting block is fixedly connected to the top of the drill rod. According to the utility model, when the drill bit main body and the drill rod drill hole are stably propelled for punching, waste chips generated by drilling can be cut and crushed by the plurality of staggered crushing knives when entering the hollow drill bit main body to form the waste chips with uniform size, and the waste chips are uniformly discharged from the plurality of chip removal holes after being conveyed to the deep part in the drill bit main body by the spiral sheet, so that the chip removal speed is high; the situation that large-size waste chips are generated in the hollow drill bit body, the chip removal holes are blocked, and waste chip removal is affected can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to drill bit technical field especially relates to a high -efficient chip removal drill. BACKGROUND

[0002] Hollow drill bit (multi -blade steel plate drill also known as or core drill) is the high -efficient drill of ring cutting of many knife edges, and the drilling diameter is from 12mm to 150mm, is mainly used to the drilling of steel member, such as steel structure engineering, rail transit, bridge, ship, machinery manufacturing, aerospace etc., and its drilling performance is obviously superior to traditional two blade twist drill, has the characteristics such as high drilling efficiency, drilling is light and quick and saves the effort, multi -blade steel plate drill and magnetic seat drilling machine can be matched to carry out multidirectional drilling to large workpiece, and the operation is convenient and flexible, effectively shortens the engineering construction time, becomes the preferred tool of modern steel member drilling and annular groove processing.

[0003] In the prior art, such as a stable hollow drill bit of Chinese patent CN213701911U, it includes connecting rod, the connecting rod one end fixedly connected with the chassis, the chassis one side fixedly connected with the drill bit main part, the drill bit main part surface is equipped with the guide slot, the inner side of the drill bit main part is provided with the baffle, the baffle outside fixedly connected with the guide column, the guide column sliding installation in the guide slot, the surface of the chassis is equipped with the chip removal port, the chip removal port forms the blade between, the blade and the chip removal port are centrally symmetric with the connecting rod as the center;The utility model discloses through the design of guide slot, chip removal port and blade, when drilling, through the arc-shaped guide slot, the chip is removed, and when the chassis rotates, the chip is sucked out through the chip removal port and the blade like a fan, so that the effect of rapid chip removal is achieved, and the phenomenon that too much chip affects drilling is avoided.

[0004] In the above-mentioned patent, although the connecting rod drives the chassis to rotate, the chip removal port and the blade on the chassis rotate, so that the chip removal port and the blade rotate like a fan and discharge the chips, but during the drilling process, the hollow drill bit main body is easy to produce large volume of waste chips, which causes the internal waste chips to block the chip removal port and affects the waste chip discharge speed. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of high-efficiency chip removal drill to solve the problem that in prior art, during the drilling process, the hollow drill bit main body is easy to produce large volume of waste chips, which causes the internal waste chips to block the chip removal port and affects the waste chip discharge speed.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of high-efficiency chip removal drill bit, comprising: drill bit main part, the outer surface of the drill bit main part is equidistant and is provided with multiple chip removal holes, the inner surface of the drill bit main part is close to the position of bottom and is provided with multiple broken knives, multiple the broken knives are staggered and are provided, the inside of the drill bit main part is provided with chip removal assembly;Chip removal assembly, the outer surface of the drill rod is provided with helical blade, the top of the drill rod is fixedly connected with mounting block, the top of the mounting block is fixedly connected with cylinder, the outer surface of the cylinder is provided with third thread.

[0007] Preferably, the inner top center of the drill bit main part is fixedly connected with a second connecting piece, and the cylinder is located inside the second connecting piece.

[0008] Preferably, the inner surface of the second connecting piece is provided with a second thread, and the third thread is matched with the second thread.

[0009] Preferably, the length of the drill rod 201 is greater than the length of the drill bit main part 1, and the bottom of the drill rod 201 is in the shape of a sharp head.

[0010] Preferably, the chip removal holes are in communication with the drill bit main part, and the outer surface of the helical blade is attached to the inner surface of the drill bit main part.

[0011] Preferably, the top center of the drill bit main part is fixedly connected with a first connecting piece, and the inner surface of the first connecting piece is provided with a first thread.

[0012] Preferably, the bottom of the drill bit main part is fixedly connected with a mounting ring, and the bottom of the mounting ring is equidistantly provided with multiple drill teeth.

[0013] Preferably, the diameter of the mounting ring is greater than the diameter of the drill bit main part, and the bottom of the drill tooth is equidistantly provided with multiple notches.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that,

[0015] 1. In the utility model, when the drill bit main part and the drill rod bore hole are steadily pushed forward to punch, the waste chips generated by the bore hole are cut and pulverized by the multiple staggered broken knives when entering the hollow drill bit main part, forming uniform size waste chips, which are conveyed to the deep part of the drill bit main part by the helical blade and then uniformly discharged from the multiple chip removal holes, so that the waste chip removal speed is fast, and the hollow drill bit main part is prevented from generating large size waste chips, which can cause the chip removal hole to be blocked and affect the waste chip discharge.

[0016] 2. In the utility model, when the drill rod is maintained and replaced, the top of the drill rod is fixedly connected with a mounting block, the top of the mounting block is fixedly connected with a cylinder, and the cylinder is threadedly connected with the second thread in the second connecting piece through the third thread, so that the utility model has the effect of facilitating disassembly. Attached Figure Description

[0017] Figure 1 A perspective view of a high-efficiency chip removal drill bit is provided for this utility model;

[0018] Figure 2 A bottom view of a high-efficiency chip removal drill bit is provided for this utility model;

[0019] Figure 3 This utility model provides a cross-sectional view of the drill bit body of a high-efficiency chip removal drill bit;

[0020] Figure 4 This utility model presents a schematic diagram of the chip removal component structure for a high-efficiency chip removal drill bit.

[0021] Legend: 1. Drill bit body; 2. Chip removal assembly; 201. Drill rod; 202. Mounting block; 203. Column; 204. Third thread; 205. Spiral blade; 3. Mounting ring; 4. Drill teeth; 5. Breaker; 6. First connector; 7. First thread; 8. Second connector; 9. Second thread; 10. Chip removal hole. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figures 1-4As shown, this utility model provides a high-efficiency chip removal drill bit, comprising: a drill bit body 1, with a plurality of chip removal holes 10 evenly spaced on the outer surface of the drill bit body 1, and a plurality of crushing blades 5 disposed near the bottom on the inner surface of the drill bit body 1, the plurality of crushing blades 5 being staggered; and a chip removal assembly 2 disposed inside the drill bit body 1; the chip removal assembly 2 includes a drill rod 201, with spiral blades 205 disposed on the outer surface of the drill rod 201, a mounting block 202 fixedly connected to the top of the drill rod 201, and a column 203 fixedly connected to the top of the mounting block 202, the outer surface of the column 203 being... The drill rod 201 has a third thread 204, and its length is greater than that of the drill body 1. The bottom of the drill rod 201 is pointed. The chip removal hole 10 is connected to the drill body 1. The outer surface of the spiral blade 205 is in contact with the inner surface of the drill body 1. A first connector 6 is fixedly connected to the top center of the drill body 1. A first thread 7 is provided on the inner surface of the first connector 6. An installation ring 3 is fixedly connected to the bottom of the drill body 1. Multiple drill teeth 4 are equidistantly arranged on the bottom of the installation ring 3. The diameter of the installation ring 3 is greater than that of the drill body 1. Multiple notches are equidistantly arranged on the bottom of the drill teeth 4.

[0025] The overall effect of Embodiment 1 is that, during drilling and chip removal, a first connecting piece 6 is fixedly connected to the top of the drill bit body 1, and installed and fixed by connecting the first thread 7 inside the connecting piece to the output end of the external power device. When the drill bit body 1 starts to rotate and drill, the tip of the drill rod 201 will first contact the drilling position to drill and make the drill rod 201 drill into the hole, which plays a guiding role. When the rotating drill bit body 1 is steadily advanced, the multiple drill teeth 4 provided on the surface of the mounting ring 3 will start to contact the drilling position to drill. When the waste chips generated by drilling enter the interior of the drill bit body 1, they will be cut and crushed by multiple staggered crushing blades 5 to form uniformly sized waste chips. As the drilling position goes deeper, when the waste chips come into contact with the rotating spiral blades 205, they will be transported to the interior depth of the drill bit body 1 and uniformly discharged from multiple chip removal holes 10. The chip removal speed is fast, which can avoid the generation of large volume waste chips inside the hollow drill bit body 1, which would cause the chip removal holes 10 to be blocked and affect the discharge of waste chips.

[0026] Example 2: Figures 1-4 As shown, a second connector 8 is fixedly connected to the center of the inner top of the drill bit body 1. The column 203 is located inside the second connector 8. A second thread 9 is provided on the inner surface of the second connector 8. A third thread 204 is provided in a matching manner with the second thread 9.

[0027] The effect achieved by the entire embodiment 2 is that, when maintaining and replacing the drill rod 201, the top of the drill rod 201 is fixedly connected to the mounting block 202, and the top of the drill rod 201 is fixedly connected to the column 203. The column 203 is threadedly connected to the second thread 9 in the second connector 8 through the third thread 204, which facilitates disassembly.

[0028] Working principle: During drilling and chip removal, the first connecting piece 6 is fixedly connected to the top of the drill bit body 1, and installed and fixed by the first thread 7 inside it being threaded to the output end of the external power device. When the drill bit body 1 starts to rotate and drill, the tip of the drill rod 201 will first contact the drilling position to drill, and the drill rod 201 will drill into the hole, playing a guiding role. As the rotating drill bit body 1 is steadily advanced, the multiple drill teeth 4 set on the surface of the mounting ring 3 begin to contact the drilling position to drill. When the waste chips generated during drilling enter the interior of the drill bit body 1, they will be cut by multiple staggered breaking blades 5. The material is crushed into uniformly sized chips. As the drilling progresses, the chips come into contact with the rotating spiral blades 205 and are transported deep into the interior of the drill bit body 1. They are then evenly discharged from multiple chip removal holes 10. This rapid chip removal speed prevents the formation of large-volume chips inside the hollow drill bit body 1, which could clog the chip removal holes 10 and hinder chip removal. When maintaining or replacing the drill rod 201, an mounting block 202 is fixedly connected to the top of the drill rod 201, and a column 203 is fixedly connected to the top of the rod. The column 203 is threadedly connected to the second thread 9 inside the second connector 8 via a third thread 204, facilitating disassembly.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-efficiency chip removal drill bit, characterized in that, include: The drill bit body (1) has multiple chip removal holes (10) evenly spaced on its outer surface. Multiple breaker blades (5) are arranged on the inner surface of the drill bit body (1) near the bottom. The multiple breaker blades (5) are staggered. A chip removal assembly (2) is arranged inside the drill bit body (1). The chip removal assembly (2) includes a drill rod (201), the outer surface of the drill rod (201) is provided with a spiral blade (205), the top of the drill rod (201) is fixedly connected to an installation block (202), the top of the installation block (202) is fixedly connected to a column (203), and the outer surface of the column (203) is provided with a third thread (204).

2. The high-efficiency chip removal drill bit according to claim 1, characterized in that: A second connector (8) is fixedly connected to the center of the inner top of the drill bit body (1), and the column (203) is located inside the second connector (8).

3. The high-efficiency chip removal drill bit according to claim 2, characterized in that: The inner surface of the second connector (8) is provided with a second thread (9), and the third thread (204) is provided in a matching manner with the second thread (9).

4. The high-efficiency chip removal drill bit according to claim 3, characterized in that: The length of the drill rod (201) is greater than the length of the drill bit body (1), and the bottom of the drill rod (201) is pointed.

5. The high-efficiency chip removal drill bit according to claim 4, characterized in that: The chip removal hole (10) is connected to the drill bit body (1), and the outer surface of the spiral blade (205) is in contact with the inner surface of the drill bit body (1).

6. The high-efficiency chip removal drill bit according to claim 5, characterized in that: A first connector (6) is fixedly connected to the top center of the drill bit body (1), and a first thread (7) is provided on the inner surface of the first connector (6).

7. The high-efficiency chip removal drill bit according to claim 6, characterized in that: The bottom of the drill bit body (1) is fixedly connected to an installation ring (3), and multiple drill teeth (4) are equidistantly arranged at the bottom of the installation ring (3).

8. The high-efficiency chip removal drill bit according to claim 7, characterized in that: The diameter of the mounting ring (3) is larger than the diameter of the drill bit body (1), and the bottom of the drill teeth (4) has multiple notches at equal intervals.

Images