Axially-locked fast-assembly type high-speed steel alloy drill bit and installation method thereof

Abstract

The invention relates to the related technical field of drill bit installation, in particular to an axial locking fast-assembly type high-speed steel alloy drill bit and an installation method thereof.The axial locking fast-assembly type high-speed steel alloy drill bit comprises a drill bit body and a drill handle arranged at the end of the alloy drill body, and the drill handle connected with the output end of the alloy drill body is detachably connected with the drill bit body; a plug is arranged at the position, away from the cutting end, of the drill bit body and can be inserted into a cylindrical cavity formed by the drill handle, and a positioning block is formed on the inner wall of the cylindrical cavity. The drill bit further comprises an elastic locking piece arranged in the cylindrical cavity, a plurality of wedge-shaped pieces formed on the plug are staggered with the elastic locking piece when the plug is initially inserted, and the plug can rotate relative to the cylindrical cavity. Locking can be completed only by slightly rotating the plug to the limit, the installation stability of the drill bit body and the drill handle is ensured, and disassembly and assembly of the drill bit body and the drill handle are rapidly achieved.

Description

Technical Field

[0001] This invention relates to the technical field of drill bit installation, specifically to an axially locking quick-release high-speed steel alloy drill bit and its installation method. Background Technology

[0002] High-speed steel alloy drills are cutting tools used in metalworking. Their bodies are not made of a single material, but rather an alloy steel composed of carbon and various alloying elements. This material is named for its ability to maintain high hardness even at high temperatures, making it the most classic and fundamental material for drilling. Existing high-speed steel alloy drills are mainly divided into integral and assemblable types. Integral drills have a single piece of cutting body and tip, while assemblable drills have separate cutting bodies and tips that can be disassembled and reassembled.

[0003] When installing existing blade bodies and tips, press-fitting or clamping methods are commonly used. In press-fitting, the tip is usually designed with an outer diameter slightly larger than the inner hole of the blade body. Mechanical pressure is used to press the tip into the inner hole of the blade body, and compressive stress is used to fix it. This installation method cannot be quickly disassembled. In clamping, the blade body has a retaining groove, and the tip is held in place by a spring retainer or screw. Axial clearance is very easy to be generated during installation. Due to the limited width of the retaining groove and the lack of a positioning block for forced alignment, it is difficult to ensure that the center lines of the blade body and the tip coincide during installation. Multiple manual rotations are required to lock it in place, making the installation cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide an axially locking quick-release high-speed steel alloy drill bit to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An axially locked quick-release high-speed steel alloy drill bit includes a drill bit body disposed at the end of the alloy drill bit body, and a drill shank connected to the output end of the alloy drill bit body is detachably connected to the drill bit body.

[0007] The drill bit body is provided with a plug away from the cutting end. The plug can be inserted into the cylindrical cavity formed by the drill shank. A positioning block is formed on the inner wall of the cylindrical cavity to assist in the installation of the plug.

[0008] It also includes an elastic locking member disposed in the cylindrical cavity. When the plug is initially inserted, a plurality of wedge-shaped members formed thereon are misaligned with the elastic locking member. The plug can rotate relative to the cylindrical cavity, so that the positioning block limits the plug and the elastic locking member can be inserted into the wedge-shaped members for locking.

[0009] As described above, the axially locked quick-release high-speed steel alloy drill bit has a limiting shaft along its axis, and a guide groove that slides and adapts to the positioning block is provided on the limiting shaft in the radial direction.

[0010] As described above, the axially locked quick-release high-speed steel alloy drill bit has a protruding post fixedly provided at the end of the plug, a limiting block is provided on the protruding post along the radial direction, and a baffle that can abut against the limiting block is provided on the inner wall of the cylindrical cavity.

[0011] The axially locked quick-release high-speed steel alloy drill bit as described above: the wedge-shaped member includes an arc-shaped insert plate, the arc-shaped insert plate is arranged around the circumference of the limiting shaft, and one end of the arc-shaped insert plate has a pressing surface arranged in an inclined structure, and the upper end surface of the arc-shaped insert plate has a groove.

[0012] As described above, the axially locked quick-release high-speed steel alloy drill bit includes an elastic locking element that is fixedly installed in the cylindrical cavity. A connecting plate is connected to the sealing plate in a direction parallel to the drill shank axis. Multiple connecting plates are arranged along the circumference of the sealing plate.

[0013] A lifting plate is provided, and a connecting column is connected to the lifting plate. The connecting column is arranged in a radially parallel direction along the cylindrical cavity. The connecting column can be inserted into the through groove formed by the connecting plate and is slidably connected with the through groove. The lower end of the lifting plate forms a pressure-bearing surface that abuts against the extrusion surface.

[0014] A second spring is disposed between the lifting plate and the sealing disc, with one end of the second spring abutting against the lifting plate and the other end abutting against the sealing disc.

[0015] As described above, the axially locked quick-release high-speed steel alloy drill bit has one end of the connecting post that can extend through the cylindrical cavity and out of the drill shank, and the drill shank is slidably provided with a push ring fixed to the connecting post along the axis.

[0016] The axially locked quick-release high-speed steel alloy drill bit described above: a protective component is provided on the outer wall of the drill shank to protect the push ring.

[0017] The axially locked quick-release high-speed steel alloy drill bit as described above: the protective component includes a safety cover, the safety cover is arranged along the axis of the drill shank, and at least one set of limiting grooves is formed on the outer wall of the drill shank, and a strip block is provided on the inner wall of the safety cover to slide and adapt to the limiting grooves;

[0018] It also includes a first spring, which is sleeved on the drill shank. A convex circle is fixedly provided on the drill shank along the axis. One end of the first spring abuts against the convex circle, and the other end abuts against the safety cover.

[0019] A method for installing an axially locking quick-release high-speed steel alloy drill bit, using any one of the axially locking quick-release high-speed steel alloy drill bits described above, includes the following steps:

[0020] Step 1: Align the guide groove on the plug with the positioning block on the drill shank and insert it. After the plug is fully inserted, control the plug to rotate relative to the drill shank so that the positioning block and the guide groove are misaligned, and the positioning block locks the plug.

[0021] Step 2: When the plug rotates relative to the drill shank, the wedge-shaped part on it squeezes the elastic locking part, allowing the elastic locking part to give way and store elastic potential energy until the elastic locking part is aligned with the groove on the wedge-shaped part and inserted, at which point the plug and the drill shank can no longer rotate relative to each other.

[0022] Step 3: Drive the protective component to rise relative to the drill shank to release the protection of the push ring, so that the push ring can release the elastic locking element from the wedge, which is used to assist in the quick installation and removal of the drill bit body and the drill shank.

[0023] As described above, the axially locked quick-release high-speed steel alloy drill bit:

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] When installing the drill bit body and drill shank, with the assistance of the positioning block, the plug is inserted after aligning with the cylindrical cavity. After the plug is fully inserted into the cylindrical cavity, it rotates relative to the drill shank, causing the positioning block to abut against the end of the plug, thus locking the plug in place. The plug cannot move axially relative to the cylindrical cavity. When the plug rotates, the wedge on it deflects and squeezes the elastic locking element. The elastic locking element makes way for the rotation of the wedge and stores elastic potential energy until the rotation of the plug is restricted. The elastic locking element then inserts into the wedge under elastic action, thus locking the plug in place. At this point, the plug and drill shank cannot rotate relative to each other. The positioning block forces alignment, ensuring that the center lines of the drill bit body and drill shank are perfectly aligned. The plug only needs to be slightly rotated to its limit to lock in place, ensuring the stability of the drill bit body and drill shank installation. No manual bolt fixing is required, allowing for quick disassembly and installation of the drill bit body and drill shank.

[0026] By driving the push ring to move along the axis of the drill shank, the locking of the elastic locking element to the wedge can be released. The premise is that after the protective component releases the protection of the push ring, human or mechanical errors should be avoided to prevent affecting the connection between the drill bit body and the drill shank. This achieves double-layer axial locking of the drill shank to the drill bit body, which can ensure that the drill bit body still maintains a stable connection with the drill shank when subjected to axial force. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a quick-release high-speed steel alloy drill bit with axial locking.

[0028] Figure 2 This is a schematic diagram of the alloy drill body and drill shank in an axially locked quick-release high-speed steel alloy drill bit.

[0029] Figure 3 This is a schematic diagram of the drill shank and drill bit body in an axially locked quick-release high-speed steel alloy drill bit.

[0030] Figure 4 This is a schematic diagram of the drill bit body and plug in a quick-release high-speed steel alloy drill bit with axial locking.

[0031] Figure 5 This is a schematic diagram of the protective components and drill shank in a quick-release high-speed steel alloy drill bit with axial locking.

[0032] Figure 6 This is a schematic diagram of the safety cover and push ring in an axially locked quick-release high-speed steel alloy drill bit.

[0033] Figure 7 This is a schematic diagram of the internal structure of the drill shank in a quick-release high-speed steel alloy drill bit with axial locking.

[0034] Figure 8 A schematic diagram of the elastic locking element and arc-shaped insert plate in a quick-release high-speed steel alloy drill bit with axial locking.

[0035] In the diagram: 1. Alloy drill body; 2. Drill shank; 201. Positioning block; 202. Limiting groove; 203. Slide groove; 204. Baffle; 3. Drill bit body; 4. Plug; 401. Limiting shaft; 402. Protruding post; 403. Limiting block; 404. Guide groove; 5. First spring; 6. Safety cover; 601. Strip block; 7. Arc-shaped insert plate; 701. Extrusion surface; 702. Groove; 8. Push ring; 9. Sealing disc; 10. Lifting plate; 1001. Pressure-bearing surface; 11. Connecting plate; 12. Connecting post; 13. Second spring. Detailed Implementation

[0036] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0037] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0038] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0039] Please see Figures 1-8 In this embodiment of the invention, an axially locked quick-release high-speed steel alloy drill bit includes a drill bit body 3, which is disposed at the end of the alloy drill body 1. The drill shank 2 connected to the output end of the alloy drill body 1 is detachably connected to the drill bit body 3.

[0040] The drill bit body 3 is provided with a plug 4 away from the cutting end. The plug 4 can be inserted into the cylindrical cavity formed by the drill shank 2. A positioning block 201 is formed on the inner wall of the cylindrical cavity to assist in the installation of the plug 4.

[0041] It also includes an elastic locking member disposed in the cylindrical cavity. When the plug 4 is initially inserted, a plurality of wedge-shaped members formed on it are misaligned with the elastic locking member. The plug 4 can rotate relative to the cylindrical cavity, so that the positioning block 201 can limit the plug 4 and the elastic locking member can be inserted into the wedge-shaped members for locking.

[0042] In this embodiment, when installing the drill bit body 3 and the drill shank 2, with the assistance of the positioning block 201, the plug 4 is inserted after being aligned with the cylindrical cavity. After the plug 4 is fully inserted into the cylindrical cavity, the plug 4 rotates relative to the drill shank 2, causing the positioning block 201 to abut against the end of the plug 4, thereby locking the plug 4 with the positioning block 201. The plug 4 cannot move axially relative to the cylindrical cavity. When the plug 4 rotates, the wedge on it deflects and squeezes the elastic locking member. The elastic locking member makes way for the rotation of the wedge and stores elastic potential energy until the rotation of the plug 4 is restricted. The elastic locking member inserts into the wedge under the elastic action, thereby locking the plug 4 with the cylindrical cavity. At this time, the plug 4 and the drill shank 2 cannot rotate relative to each other. The positioning block 201 forces alignment to ensure that the center lines of the drill bit body 3 and the drill shank 2 are perfectly aligned. The plug 4 only needs to be slightly rotated to the limit to complete the locking, ensuring the installation stability of the drill bit body 3 and the drill shank 2. No manual bolt fixing is required, and the disassembly and installation of the drill bit body 3 and the drill shank 2 can be quickly realized.

[0043] Preferably, the plug 4 is provided with a limiting shaft 401 along the axis, and the limiting shaft 401 is provided with a guide groove 404 that is slidably adapted to the positioning block 201 along the radial direction.

[0044] By aligning the positioning block 201 with the guide groove 404, it is ensured that the drill bit body 3 and the drill shank 2 are on the same axis, while avoiding tilting of the drill bit body 3 during installation, ensuring the verticality and roundness of the drill hole. After the plug 4 is fully inserted, the plug 4 is controlled to rotate relative to the cylindrical cavity, so that the positioning block 201 and the guide groove 404 are misaligned, thereby locking the positioning block 201 to the limiting shaft 401 and preventing the plug 4 from moving along the axial direction of the drill shank 2.

[0045] As a further embodiment of the present invention, please refer to... Figure 4 The plug 4 has a protruding post 402 fixedly provided at its end, and a limiting block 403 is provided on the protruding post 402 along the radial direction. A baffle 204 that can abut against the limiting block 403 is provided on the inner wall of the cylindrical cavity.

[0046] In this embodiment, to prevent the plug 4 from rotating too quickly, which would cause the elastic locking member to fail to be properly inserted into the wedge, the baffle 204 is designed to limit the rotation angle of the plug 4. When the limiting block 403 rotates to abut against the baffle 204, the plug 4 is stopped and cannot continue to rotate. At this time, the elastic locking member can be properly inserted into the wedge, effectively preventing the elastic locking member from loosening or failing due to misalignment, thereby ensuring the safety and stability of the drill bit body 3 during use.

[0047] As a further embodiment of the present invention, please refer to... Figure 7 and Figure 8 The wedge-shaped member includes an arc-shaped insert plate 7, which is arranged around the circumference of the limiting shaft 401. One end of the arc-shaped insert plate 7 has an inclined pressing surface 701, and the upper end surface of the arc-shaped insert plate 7 has a groove 702.

[0048] The elastic locking element includes a sealing disc 9 fixedly installed in the cylindrical cavity. A connecting plate 11 is connected to the sealing disc 9 and is arranged in a direction parallel to the axis of the drill shank 2. Multiple connecting plates 11 are arranged along the circumference of the sealing disc 9.

[0049] A lifting plate 10 is provided, and a connecting column 12 is connected to the lifting plate 10. The connecting column 12 is arranged in a radially parallel direction along the cylindrical cavity. The connecting column 12 can be inserted into the through groove formed by the connecting plate 11 and is slidably connected with the through groove. The lower end of the lifting plate 10 is formed with a pressure surface 1001 that abuts against the extrusion surface 701.

[0050] The second spring 13 is disposed between the lifting plate 10 and the sealing plate 9. One end of the second spring 13 abuts against the lifting plate 10 and the other end abuts against the sealing plate 9.

[0051] In this embodiment, after the plug 4 is fully inserted into the cylindrical cavity, the plug 4 is controlled to rotate relative to the cylindrical cavity. At this time, the arc-shaped insert plate 7 rotates synchronously with the rotation of the plug 4, and the pressing surface 701 on it generates an inclined force on the pressure surface 1001 during rotation. Under the sliding cooperation of the through groove and the connecting column 12, the lifting plate 10 can only move in a direction parallel to the axis of the cylindrical cavity. The lifting plate 10 makes way for the arc-shaped insert plate 7, and at the same time, the second spring 13 is compressed to store elastic potential energy until the limiting block 403 abuts against the baffle 204, and the rotation of the plug 4 stops. The physical restriction of the baffle 204 ensures that the lifting plate 10 and the groove 702 are aligned, avoiding misinstallation. Under the elastic action of the second spring 13, the lifting plate 10 is quickly inserted into the groove 702, and the plug 4 and the cylindrical cavity cannot rotate relative to each other, forming a stable mechanical lock, so as to realize the rapid installation of the drill bit body 3 and the drill shank 2, ensuring that the drill shank 2 can effectively transmit the driving torque to the drill bit body 3 when rotating at high speed, and achieve efficient processing.

[0052] As a further embodiment of the present invention, please refer to... Figure 5 and Figure 6 One end of the connecting post 12 can extend through the cylindrical cavity and out of the drill shank 2. The drill shank 2 is slidably provided with a push ring 8 fixed to the connecting post 12 along the axis.

[0053] The drill shank 2 is provided with a protective component on its outer wall to protect the push ring 8.

[0054] The protective component includes a safety cover 6, which is arranged along the axis of the drill shank 2, and at least one set of limiting grooves 202 are formed on the outer wall of the drill shank 2. A strip block 601 that is slidably adapted to the limiting grooves 202 is provided on the inner wall of the safety cover 6.

[0055] It also includes a first spring 5, which is sleeved on the drill shank 2. A convex circle is fixedly provided on the drill shank 2 along the axis. One end of the first spring 5 abuts against the convex circle, and the other end abuts against the safety cover 6.

[0056] It should be noted that the limiting groove 202 includes a first straight groove, an arc groove, and a second straight groove disposed at the end of the arc groove.

[0057] In the initial state, the strip block 601 is located at the bottom of the first straight groove. At this time, the push ring 8 is completely within the protection range of the safety cover 6, preventing accidental human or mechanical contact that could cause the lifting plate 10 to release the arc-shaped insert plate 7. When the plug 4 is separated from the drill shank 2, the safety cover 6 is controlled to move linearly along the axis of the drill shank 2, and the strip block 601 moves within the first straight groove. The first spring 5 is compressed, storing elastic potential energy, until the strip block 601 moves to the top of the first straight groove. At this time, the first spring 5 is fully compressed, and the safety cover 6 and the push ring 8 are completely separated and spaced apart. The safety cover 6 moves relative to the drill shank 2 along the direction of the arc-shaped groove. Rotation occurs, and the strip block 601 rotates relative to the arc groove. During rotation, the compression of the first spring 5 remains unchanged. When the strip block 601 rotates to the end of the arc groove, it is restricted and cannot continue to rotate. At this point, control of the safety cover 6 is stopped. Under the elastic action of the first spring 5, the first spring 5 generates a force on the safety cover 6 toward the push ring 8. The strip block 601 is inserted into the second straight groove, so that the drill shank 2 can quickly lock the safety cover 6 after the safety cover 6 is released. This ensures that the push ring 8 can be easily operated after the safety cover 6 is released from the push ring 8, thereby quickly and completely unlocking the arc-shaped insert plate 7 of the lifting plate 10, so as to separate the plug 4 from the drill shank 2.

[0058] The drill shank 2 has at least one set of sliding grooves 203. The connecting post 12 is slidably disposed in the sliding grooves 203. After the safety cover 6 removes the protection of the push ring 8, the push ring 8 can drive the connecting post 12 to move linearly along the axis of the drill shank 2 with the cooperation of the sliding grooves 203 and the connecting post 12. This allows the lifting plate 10 to be pulled out from the groove 702, releasing the locking of the lifting plate 10 to the arc-shaped insert plate 7. This makes it easier for the plug 4 to rotate relative to the drill shank 2 again. After the guide groove 404 on it is aligned with the positioning block 201 again, it is easy to separate the drill bit body 3 from the drill shank 2.

[0059] In one embodiment, when the drill bit body 3 is installed or separated from the drill shank 2, the strip block 601 on the safety cover 6 is always located in the second straight groove, and after the lifting plate 10 is inserted into the arc-shaped insert 7, the safety cover 6 resumes its protection of the push ring 8.

[0060] A method for installing an axially locking quick-release high-speed steel alloy drill bit, using any one of the axially locking quick-release high-speed steel alloy drill bits described above, includes the following steps:

[0061] Step 1: After the guide groove 404 on the plug 4 is aligned with the positioning block 201 on the drill shank 2, the plug 4 is inserted. After the plug 4 is fully inserted, the plug 4 is rotated relative to the drill shank 2, so that the positioning block 201 and the guide groove 404 are misaligned, and the positioning block 201 locks the plug 4.

[0062] Step 2: When the plug 4 rotates relative to the drill shank 2, the wedge-shaped part on it squeezes the elastic locking part, allowing the elastic locking part to give way and store elastic potential energy until the elastic locking part is aligned with the groove 702 on the wedge-shaped part and inserted, at which point the plug 4 and the drill shank 2 can no longer rotate relative to each other.

[0063] Step 3: Drive the protective component to rise relative to the drill shank 2 to release the protection of the push ring 8, so that the push ring 8 can release the elastic locking member from locking the wedge, which is used to assist in the quick installation and removal of the drill bit body 3 and the drill shank 2.

[0064] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0065] 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 quick-mounting high-speed steel alloy drill bit with axial locking, comprising a drill bit body (3) arranged at the end of an alloy drill body (1), a shank (2) connected to the output end of the alloy drill body (1) being detachably connected to the drill bit body (3), characterized in that ； The drill bit body (3) is provided with a plug (4) away from the cutting end, the plug (4) can be inserted into the cylindrical cavity formed by the drill shank (2), and a positioning block (201) is formed on the inner wall of the cylindrical cavity for assisting the installation of the plug (4); Further comprising an elastic locking member arranged in the cylindrical cavity, a plurality of wedge-shaped members formed on the plug (4) are misaligned with the elastic locking member when the plug (4) is initially inserted, and the plug (4) can rotate relative to the cylindrical cavity, so that the positioning block (201) limits the plug (4) and the elastic locking member can be inserted into the wedge-shaped member to be locked.

2. The axially locked quick set high speed steel alloy drill bit of claim 1, wherein, The plug (4) is provided with a limiting shaft (401) along the axis, and a guide groove (404) adapted to slide with the positioning block (201) is arranged on the limiting shaft (401) in the radial direction.

3. The axially locked quick set high speed steel alloy drill bit of claim 2, wherein, The end of the plug (4) is fixedly provided with a protruding column (402), and a limiting block (403) is arranged on the protruding column (402) in the radial direction, and a baffle (204) capable of abutting against the limiting block (403) is arranged on the inner wall of the cylindrical cavity.

4. The axially locked quick set high speed steel alloy drill bit of claim 2, wherein, The wedge-shaped member comprises an arc-shaped insertion plate (7), the arc-shaped insertion plate (7) is arranged along the circumference of the limiting shaft (401), and one end of the arc-shaped insertion plate (7) is formed with an extrusion surface (701) arranged in an inclined structure, and the upper end surface of the arc-shaped insertion plate (7) is formed with a groove (702).

5. The axially locked quick set high speed steel alloy drill bit of claim 4, wherein, The elastic locking member comprises a blocking disc (9) fixedly installed in the cylindrical cavity, the blocking disc (9) is connected with a connecting plate (11) arranged in parallel with the axis of the drill shank (2), and a plurality of connecting plates (11) are arranged along the circumference of the blocking disc (9); A lifting plate (10) is connected with a connecting column (12) arranged in parallel with the radial direction of the cylindrical cavity, the connecting column (12) can be inserted into a through groove formed in the connecting plate (11) and is in sliding connection with the through groove, and the lower end of the lifting plate (10) is formed with a pressure receiving surface (1001) abutting against the extrusion surface (701); A second spring (13) is arranged between the lifting plate (10) and the blocking disc (9), one end of the second spring (13) abuts against the lifting plate (10), and the other end abuts against the blocking disc (9).

6. The axially locked quick set high speed steel alloy drill bit of claim 5, wherein, One end of the connecting column (12) can extend out of the drill shank (2) through the cylindrical cavity, and a push ring (8) fixed with the connecting column (12) is arranged in sliding connection along the axis of the drill shank (2).

7. The axially locked quick set high speed steel alloy drill bit of claim 6 wherein, A protection assembly is arranged on the outer wall of the drill shank (2) to protect the push ring (8).

8. The axially locked quick set high speed steel alloy drill bit of claim 7, wherein, The protection assembly comprises a safety cover (6) arranged along the axis of the drill shank (2), and at least one set of limiting grooves (202) is formed on the outer wall of the drill shank (2), and a strip-shaped block (601) is arranged on the inner wall of the safety cover (6) in sliding connection with the limiting grooves (202). Also include a first spring (5), the first spring (5) is set on the drill handle (2), the drill handle (2) is fixedly provided with a convex circle along the axis, one end of the first spring (5) is in abutment with the convex circle, the other end is in abutment with the safety cover (6).

9. A method of installing an axially locked quick-set high speed steel alloy drill bit, the method comprising: The axial locking quick-mount high-speed steel alloy drill bit of any one of claims 1-8 comprises the following steps: Step one: after the guide groove (404) on the plug (4) is aligned with the positioning block (201) on the drill handle (2), the plug (4) is inserted, and after the plug (4) is completely inserted, the plug (4) is rotated relative to the drill handle (2), so that the positioning block (201) is misaligned with the guide groove (404), and the positioning block (201) locks the plug (4); Step two: when the plug (4) is rotated relative to the drill handle (2), the wedge-shaped part on the plug (4) exerts pressure on the elastic locking part, so that the elastic locking part can be accommodated, the elastic potential energy is stored, and until the elastic locking part is aligned with the groove (702) on the wedge-shaped part and is inserted, the plug (4) and the drill handle (2) cannot be rotated relative to each other; Step three: drive the protection assembly to rise relative to the drill handle (2) to release the protection of the push ring (8), so that the push ring (8) can release the locking of the wedge-shaped part by the elastic locking part, and assist the quick installation and disassembly of the drill bit body (3) and the drill handle (2).

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