Tungsten steel coating drill bit with adjustable cutter handle

Abstract

The utility model belongs to the technical field of drill bits, particularly relates to a tungsten steel coating drill bit with an adjustable cutter handle, and aims to solve the problems that a cutter handle of an existing drill bit is of a fixed structure and cannot be adjusted, so that the drilling depth cannot be adjusted, and the drill bit is very inconvenient to use. An adjusting piece is installed on the outer surface of the fixed cutter handle, an adjusting mechanism used for adjusting the cutter handle is arranged on the outer wall of the adjusting piece, and a flushing mechanism used for flushing the drill bit is arranged at one end of the adjusting piece. The adjusting mechanism comprises a limiting bolt, and the limiting bolt is arranged on the outer wall of the adjusting piece. According to the drill bit, the limiting bolt on the adjusting piece is unscrewed, so that the friction block is separated from the limiting groove in the fixed cutter handle, then the fixed cutter handle is released, the fixed cutter handle can be pulled, the overall length of the drill bit can be adjusted, and holes with different depths can be machined through the drill bit body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tungsten steel coating drill bit, concretely to a tungsten steel coating drill bit capable of adjusting a shank, belongs to drill bit technical field. BACKGROUND

[0002] The tungsten steel coating drill bit is a high-efficiency drilling tool, which has the characteristics of high hardness, high wear resistance and good impact resistance. Tungsten steel, also known as hard alloy, has a very significant improvement in the hardness and heat resistance of steel. The main application of tungsten resources is also hard alloy, that is, tungsten steel. Hard alloy is called the teeth of modern industry. Tungsten steel products are widely used. The drill made of tungsten steel has high strength and can facilitate the processing of ceramic objects.

[0003] In the prior art, such as the one disclosed in the patent No. CN217775673U, a tungsten steel high-speed drill coating includes a body and a coating body, the coating body is coated on the surface of the body, the coating body includes a nano coating, a first functional layer, a second functional layer and a surface coating, the surface coating is a nitrogen-chromium-aluminum coating, the surface coating is fixedly connected with uniformly distributed nano particles, the nano coating is fixedly connected to the outer surface of the body, and the first functional layer is fixedly connected to the outer surface of the nano coating. It can increase the adhesion of the coating body to the drill body through the nano coating of the nano technology, so that the coating is not easy to be worn off. The nano particles embedded therein can achieve the effect of reducing, form a self-lubricating material, help to remove chips during drilling and machining, and improve the machining quality of the tungsten steel high-speed drill.

[0004] Although the above technical solution can increase the adhesion of the coating body to the drill body through the nano coating of the nano technology, so that the coating is not easy to be worn off, but the shank of the drill is a fixed structure and cannot be adjusted, which leads to the inability to adjust the drilling depth and makes it very inconvenient to use. In view of this, a tungsten steel coating drill bit capable of adjusting the shank is provided to overcome the above-mentioned defects. UTILITY MODEL CONTENTS

[0005] The utility model provides a tungsten steel coating drill bit capable of adjusting the shank to solve the problem that the shank of the drill bit is a fixed structure and cannot be adjusted, which leads to the inability to adjust the drilling depth and makes it very inconvenient to use.

[0006] The utility model realizes the above-mentioned purpose through the following technical scheme: a tungsten steel coating drill bit capable of adjusting the shank, including fixed shank, the outer surface of fixed shank is installed with adjusting part, the outer wall of adjusting part is equipped with adjusting mechanism for adjusting shank, the one end of adjusting part is equipped with flushing mechanism for flushing drill bit;

[0007] The adjustment mechanism includes a limit bolt, which is installed on the outer wall of the adjustment component. A friction block is fixed to the end of the limit bolt, and a limit groove is connected to the lower end of the friction block on the fixed tool holder.

[0008] As a further embodiment of this utility model: a drill bit body is fixed to one end of the fixed tool holder, and a chip removal groove is provided on the outer surface of the drill bit body.

[0009] As a further improvement of this utility model, the outer surfaces of both the drill bit body and the fixed tool holder are coated with a wear-resistant coating.

[0010] As a further improvement of this utility model: a fixing ring is fixed on one side of the adjusting member, and four ball bearings are symmetrically installed on the side wall of the fixing ring.

[0011] As a further improvement of this utility model, the outer surface of the adjusting member is provided with several anti-slip textures at equal intervals.

[0012] As a further embodiment of this utility model: the rinsing mechanism includes a water inlet pipe, which is connected to one end of the adjusting component, and a filter screen is fixed inside the water inlet pipe.

[0013] As a further embodiment of this utility model: the adjusting component has a flow cavity that communicates with the water inlet pipe, and the end of the drill bit body has a spray hole that communicates with the flow cavity.

[0014] The beneficial effects of this utility model are:

[0015] 1) By loosening the limiting bolts on the adjusting part, the friction block and the limiting groove on the fixed tool holder are separated, thereby releasing the fixation of the fixed tool holder. This allows the fixed tool holder to be pulled, thereby adjusting the overall length of the drill bit, so that the drill bit body can process holes of different depths.

[0016] 2) The chip removal groove on the drill bit body facilitates the discharge of waste chips generated during processing to the outside. At the same time, the water supply pipe of the equipment delivers clean water to the water inlet pipe, and the water spray hole sprays out clean water, so that the clean water flows out from the hole of the workpiece to the outside, which can flush out the waste chips remaining in the chip removal groove to the outside and cool down the drill bit body. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the adjusting component of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a three-dimensional structural diagram of the fixed knife handle of this utility model.

[0021] In the diagram: 1. Fixed tool holder; 2. Adjusting component; 3. Limiting bolt; 31. Friction block; 32. Limiting groove; 33. Drill body; 34. Chip removal groove; 4. Wear-resistant coating; 5. Fixing ring; 6. Ball bearing; 7. Anti-slip texture; 8. Water inlet pipe; 81. Filter screen; 82. Flow chamber; 83. Water spray hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1, as Figures 1 to 4 As shown, a tungsten carbide coated drill bit with an adjustable handle includes a fixed handle 1, an adjusting member 2 is installed on the outer surface of the fixed handle 1, the outer wall of the adjusting member 2 is provided with an adjusting mechanism for adjusting the handle, and one end of the adjusting member 2 is provided with a flushing mechanism for flushing the drill bit.

[0024] The adjustment mechanism includes a limiting bolt 3, which is mounted on the outer wall of the adjusting component 2. A friction block 31 is fixed to the end of the limiting bolt 3, and a limiting groove 32 formed on the fixed tool holder 1 is connected to the lower end of the friction block 31. A drill bit body 33 is fixed to one end of the fixed tool holder 1, and a chip removal groove 34 is formed on the outer surface of the drill bit body 33. Both the outer surfaces of the drill bit body 33 and the fixed tool holder 1 are coated with a wear-resistant coating 4. A fixing ring 5 is fixed to one side of the adjusting component 2, and four balls 6 are symmetrically installed on the side wall of the fixing ring 5. When the drilling depth needs to be adjusted, the limiting bolt on the adjusting component 2 can be adjusted. Loosening bolt 3 separates friction block 31 from limiting groove 32 on fixed tool holder 1, thereby releasing the fixation of fixed tool holder 1. This allows the fixed tool holder 1 to be pulled, thereby adjusting the overall length of the drill bit, enabling the drill bit body 33 to process holes of different depths. Furthermore, through the ball bearings 6 set on the fixed ring 5, when the drill bit body 33 is fed into position, the ball bearings 6 will contact the outer surface of the workpiece. When the adjusting component 2 rotates, the ball bearings 6 can ensure the normal rotation of the fixed ring 5, thereby improving the smoothness of processing. The wear-resistant coating 4 on the surface of the drill bit body 33 can improve the wear resistance.

[0025] Example 2: In addition to all the technical features in Example 1, this example also includes: a plurality of anti-slip textures 7 are equidistantly provided on the outer surface of the adjusting member 2; the rinsing mechanism includes a water inlet pipe 8 connected to one end of the adjusting member 2; a filter screen 81 is fixed inside the water inlet pipe 8; a flow cavity 82 connected to the water inlet pipe 8 is provided inside the adjusting member 2; a water spray hole 83 connected to the flow cavity 82 is provided at the end of the drill bit body 33; a chip removal groove 34 provided on the drill bit body 33 facilitates the discharge of waste chips generated during processing to the outside; at the same time, the water supply pipe of the equipment delivers clean water to the water inlet pipe 8; the filter screen 81 can filter impurities in the water; and the water then flows through the flow cavity 82 to the water spray hole 83, at which time the water spray hole 83 sprays out clean water, thereby allowing the clean water to flow out from the hole of the workpiece to the outside, which can flush out the waste chips remaining in the chip removal groove 34 to the outside, and can also cool down the drill bit body 33.

[0026] Before using the tungsten carbide coated drill bit, it must be assembled. The adjusting component 2 and the output shaft of the drive device are connected and fixed. The anti-slip texture 7 on the adjusting component 2 provides anti-slip properties, ensuring the stability of the drill bit during operation. The water inlet pipe 8 can be connected to the water supply pipe of the device. The drive device rotates the adjusting component 2, thereby driving the drill body 33 to process the workpiece. The chip removal groove 34 on the drill body 33 facilitates the discharge of waste chips generated during processing to the outside. At the same time, the water supply pipe of the device delivers clean water to the water inlet pipe 8. The filter screen 81 filters out impurities in the water, which then flows through the flow chamber 82 to the water spray hole 83. At this time, the water spray hole 83 sprays out clean water, allowing the clean water to flow from the inside of the workpiece to the outside. The chip discharge can flush out the residual chips in the chip groove 34 to the outside and cool the drill body 33. When it is necessary to adjust the drilling depth, the limiting bolt 3 on the adjusting part 2 can be loosened, so that the friction block 31 and the limiting groove 32 on the fixed tool holder 1 are separated, thereby releasing the fixation of the fixed tool holder 1. This allows the fixed tool holder 1 to be pulled, thereby adjusting the overall length of the drill bit, so that the drill body 33 can process holes of different depths. And through the ball 6 set on the fixed ring 5, when the drill body 33 is fed into place, the ball 6 will contact the outer surface of the workpiece. When the adjusting part 2 rotates, the ball 6 can ensure that the fixed ring 5 rotates normally, thereby improving the smoothness of processing. The wear-resistant coating 4 on the surface of the drill body 33 can improve the wear resistance.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tungsten carbide coated drill bit with an adjustable shank, comprising a fixed shank (1), characterized in that: An adjusting member (2) is installed on the outer surface of the fixed tool holder (1). The outer wall of the adjusting member (2) is provided with an adjusting mechanism for adjusting the tool holder. One end of the adjusting member (2) is provided with a flushing mechanism for flushing the drill bit. The adjustment mechanism includes a limiting bolt (3), which is placed on the outer wall of the adjustment member (2). A friction block (31) is fixed at the end of the limiting bolt (3), and a limiting groove (32) opened on the fixed handle (1) is connected to the lower end of the friction block (31).

2. The tungsten carbide coated drill bit according to claim 1, characterized in that: One end of the fixed tool holder (1) is fixed with a drill bit body (33), and the outer surface of the drill bit body (33) is provided with a chip removal groove (34).

3. The tungsten carbide coated drill bit according to claim 2, characterized in that: The outer surfaces of the drill bit body (33) and the fixed tool holder (1) are coated with a wear-resistant coating (4).

4. The tungsten carbide coated drill bit according to claim 1, characterized in that: A fixing ring (5) is fixed on one side of the adjusting member (2), and four balls (6) are symmetrically installed on the side wall of the fixing ring (5).

5. The tungsten carbide coated drill bit according to claim 1, characterized in that: The outer surface of the adjusting component (2) is provided with several anti-slip textures (7) at equal intervals.

6. The tungsten carbide coated drill bit according to claim 1, characterized in that: The rinsing mechanism includes a water inlet pipe (8), which is connected to one end of the adjusting member (2), and a filter screen (81) is fixed inside the water inlet pipe (8).

7. The tungsten carbide coated drill bit according to claim 6, characterized in that: The adjusting component (2) has a flow cavity (82) that communicates with the water inlet pipe (8) inside, and the drill bit body (33) has a water spray hole (83) that communicates with the flow cavity (82) at its end.

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