Self-centering high-speed steel abrasive drill

Abstract

The utility model discloses a self-centering high-speed steel abrasive drill which comprises a drill bit, a mounting seat, a mounting head at the top of the drill bit, a mounting opening formed in the inner side of the bottom of the mounting seat, a mounting groove formed in one side of the interior of the mounting opening, a spring arranged on the inner side of the mounting groove, a clamping block arranged at the top of the spring and a clamping groove formed in one side of the top of the mounting head. The limiting rail is used for limiting the limiting strip, so that other structures on the inner side of the mounting opening are aligned, the mounting head pushes the clamping block into the mounting groove through the inclined surface at the bottom of the clamping block, after the mounting head is mounted, the clamping block is clamped in the mounting groove, and the clamping block is clamped in the mounting groove. The clamping blocks can be bounced into the clamping grooves through the springs, so that the clamping blocks fix the clamping grooves, the mounting head is fixed, after the position of the mounting head is mounted, a fixing bolt penetrates through a fixing opening and is connected with a fixing screw opening, and therefore the mounting head is fixed, and otherwise, the mounting head is dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of self-centering drills, in particular to a self-centering high-speed steel grinding drill. Background Art

[0002] A spot drill is a drilling tool whose primary function is to maintain drill bit stability during drilling, preventing deviation or vibration, thereby improving drilling accuracy and efficiency. Typically consisting of a steel drill body and a replaceable solid carbide crown, a spot drill offers comparable precision to welded carbide drills, but with a replaceable crown, it offers advantages in cost and efficiency. Spot drills are widely used in industrial drilling applications, such as machining, machinery, and shipbuilding, and are an indispensable tool in machining.

[0003] After using for a period of time, the existing spot drill needs to be cleaned and maintained on the surface of the spot drill to ensure its quality and avoid damage. At present, when cleaning and maintaining the spot drill, the spot drill usually needs to be disassembled. However, during the current disassembly of the spot drill, the entire drill bit usually needs to be disassembled, which results in too many disassembled parts and is more troublesome to operate. Utility Model Content

[0004] The purpose of the utility model is to provide a self-centering high-speed steel grinding drill to solve the problems raised in the above background technology.

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

[0006] A self-centering high-speed steel grinding drill comprises a drill bit and a mounting seat, a mounting head is mounted on the top of the drill bit, a mounting opening is provided on the inner side of the bottom of the mounting seat, the mounting head is disassembled and assembled on the mounting opening, limit strips are provided on both sides of the mounting head, limit rails are provided on both sides of the inside of the mounting opening, the limit strips are slidably connected to the limit rails, a mounting groove is provided on one side inside the mounting opening, a spring is provided on the inside of the mounting groove, a clamping block is provided on the top of the spring, and the bottom of the clamping block is inclined, a clamping groove is provided on one side of the top of the mounting head, a fixing opening is provided on one side outside the mounting seat, a screw opening is provided on one side of the bottom of the mounting head, a fixing bolt is provided on the outside of the fixing opening, the fixing bolt passes through the fixing opening, and the fixing bolt is threadedly connected to the fixing screw opening.

[0007] In a preferred embodiment of the present invention, limiting blocks are provided on both sides of the clamping block, limiting slots are provided on both sides of the installation slot, and the limiting blocks are slidably connected to the limiting slots.

[0008] In a preferred embodiment of the present invention, a docking strip is provided on the top of the card block, and a docking rail is provided on the top of the installation slot and the top of the card slot, and the docking strip is slidably connected to the docking rail.

[0009] In a preferred embodiment of the present invention, a sliding rod is provided on the rear side of the clamping block, a sliding opening is provided on the rear side of the mounting groove, and the sliding rod is slidably connected to the sliding opening.

[0010] In a preferred embodiment of the present invention, a pull rod is provided on the outside of the sliding rod, and the pull rod is located outside the installation opening.

[0011] In a preferred embodiment of the present invention, a threaded opening is provided on the other side of the outside of the mounting seat, a reinforcing bolt is provided inside the threaded opening, and the reinforcing bolt is threadedly connected to the threaded opening.

[0012] In a preferred embodiment of the present invention, a fixing head is provided on the inner side of the reinforcing bolt.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention.

[0014] Beneficial effect: The limiting rail is used to limit the limiting bar, so as to align with other structures inside the installation port, and the installation head pushes the card block into the installation slot through the inclined surface at the bottom of the card block. When the installation head is installed, the card block will bounce into the card slot through the spring, so that the card block fixes the card slot, thereby fixing the installation head, which is convenient for subsequent fixation. When the installation head position is installed, the fixing port will dock with the screw port, and the fixing bolt is passed through the fixing port and connected to the fixing screw port to fix the installation head. When removing or replacing the drill bit, you only need to remove the fixing bolt, and pull the pull rod from the outside to make the sliding rod slide in the sliding port, so that the card block enters the installation slot, so that the drill bit can be removed and replaced, which is more convenient to operate.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the main structure of a self-centering high-speed steel grinding drill;

[0018] Figure 2 This is a schematic diagram of the connection structure between the mounting head and the mounting port in a self-centering high-speed steel grinding drill;

[0019] Figure 3 A self-centering high-speed steel grinding drill Figure 2 Structural diagram at A;

[0020] Figure 4 This is a schematic diagram of the mounting slot structure in a self-centering high-speed steel grinding drill;

[0021] Figure 5 This is a schematic diagram of the structure of a self-centering high-speed steel grinding drill mounting head.

[0022] In the figure: 1. Drill bit; 11. Mounting head; 12. Limiting strip; 13. Screw mouth; 14. Slot; 2. Mounting seat; 21. Limiting rail; 22. Mounting opening; 23. Fixing opening; 24. Fixing bolt; 3. Mounting slot; 31. Limiting slot; 32. Limiting block; 33. Block; 34. Docking strip; 35. Docking rail; 4. Spring; 41. Sliding rod; 42. Pull rod; 43. Sliding opening; 5. Threaded opening; 51. Reinforcement bolt; 52. Fixing head. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0024] Please refer to Figure 1-5 The utility model is a self-centering high-speed steel grinding drill, comprising a drill bit 1 and a mounting seat 2. The drill bit 1 is the main body of the self-centering high-speed steel grinding drill, the drill bit 1 is a centering drill, and the mounting seat 2 is a mounting structure for mounting the drill bit 1. A mounting head 11 is mounted on the top of the drill bit 1. The mounting head 11 is the mounting part of the drill bit 1, that is, it is used to drive the drill bit 1 for installation. A mounting opening 22 is provided on the inner side of the bottom of the mounting seat 2. The mounting head 11 is assembled and disassembled on the mounting opening 22, that is, it is mounted on the mounting opening 22 by the mounting head 11, so that the drill bit 1 is mounted on the mounting seat 2. Limiting strips 12 are provided on both sides of the mounting head 11, and limiting rails 21 are provided on both sides of the inside of the mounting opening 22. The limiting strip 12 is slidably connected to the limiting rail 21, that is, the limiting strip 12 is limited by the limiting rail 21, so that when the mounting head 11 is installed on the mounting opening 22, it is convenient to align with other structures inside the mounting opening 22.

[0025] The mounting opening 22 is provided with a mounting groove 3 on one side thereof, and the mounting groove 3 is a mounting structure. A spring 4 is provided on the inner side of the mounting groove 3, and a clamping block 33 is provided on the top of the spring 4. The clamping block 33 is clamped in the mounting groove 3, and the clamping block 33 is movable in the mounting groove 3. Limiting blocks 32 are provided on both sides of the clamping block 33, and limiting grooves 31 are provided on both sides of the mounting groove 3. The limiting blocks 32 are slidably connected to the limiting grooves 31, that is, the limiting blocks 32 are limited by the limiting grooves 31, thereby restricting the clamping block 33 to prevent it from popping out of the mounting groove 3. The bottom of the clamping block 33 is inclined, and a clamping groove 14 is provided on one side of the top of the mounting head 11. A docking strip 34 is provided on the top of the block 33, and a docking rail 35 is provided on the top of the mounting groove 3 and the top of the card slot 14. The docking strip 34 and the docking rail 35 are slidably connected. When the mounting head 11 is installed on the mounting opening 22, the card block 33 will be pushed into the mounting groove 3 through the inclined surface at the bottom of the card block 33. When the mounting head 11 is installed, the card block 33 will be rebounded into the card slot 14 by the spring 4, so that the card block 33 fixes the card slot 14, thereby fixing the mounting head 11, facilitating subsequent fixation, and the card block 33 remains stable when connected to the card slot 14 through the docking strip 34 on the docking rail 35.

[0026] A fixing port 23 is provided on one side of the outside of the mounting base 2, a screw port 13 is provided on one side of the bottom of the mounting head 11, a fixing bolt 24 is provided on the outside of the fixing port 23, and the fixing bolt 24 is threadedly connected to the fixing screw port 13. When the position of the mounting head 11 is fixed, the fixing port 23 will dock with the screw port 13, and the fixing bolt 24 passes through the fixing port 23 and connects to the fixing screw port 13, so that the mounting head 11 is fixed. A threaded port 5 is provided on the other side of the outside of the mounting base 2, and a reinforcing bolt 51 is provided inside the threaded port 5. The reinforcing bolt 51 is threadedly connected to the threaded port 5, and a fixing head 52 is provided inside the reinforcing bolt 51. By rotating the reinforcing bolt 51 on the threaded opening 5, the fixing head 52 reinforces the mounting head 11. When disassembling or replacing the drill bit 1, it is only necessary to loosen the reinforcing bolt 51 and remove the fixing bolt 24. A sliding rod 41 is provided on the rear side of the block 33, and a sliding opening 43 is provided on the rear side of the mounting groove 3. The sliding rod 41 is slidably connected to the sliding opening 43. A pull rod 42 is provided on the outside of the sliding rod 41, and the pull rod 42 is located on the outside of the mounting opening 22. That is, by pulling the pull rod 42 on the outside, the sliding rod 41 slides in the sliding opening 43, so that the block 33 enters the mounting groove 3, thereby disassembling and replacing the drill bit 1.

[0027] The working principle of the present invention is as follows: the mounting head 11 is mounted on the mounting opening 22, so that the drill bit 1 is mounted on the mounting seat 2, and the limiting rail 21 is used to limit the limiting bar 12, so as to align with other structures inside the mounting opening 22, and the mounting head 11 pushes the clamping block 33 into the mounting groove 3 through the inclined surface at the bottom of the clamping block 33. When the mounting head 11 is installed, the clamping block 33 is rebounded to the clamping groove 14 by the spring 4, so that the clamping block 33 fixes the clamping groove 14, thereby fixing the mounting head 11. When the position of the mounting head 11 is fixed, The fixing port 23 will dock with the screw port 13, and the fixing bolt 24 will pass through the fixing port 23 and connect to the fixing screw port 13, so that the mounting head 11 is fixed, and the reinforcing bolt 51 is rotated on the threaded port 5, so that the fixing head 52 reinforces the mounting head 11. When removing or replacing the drill bit 1, it is only necessary to loosen the reinforcing bolt 51 and remove the fixing bolt 24, and pull the pull rod 42 from the outside to make the sliding rod 41 slide in the sliding port 43, so that the block 33 enters the mounting groove 3, so that the drill bit 1 can be removed and replaced.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A self-centering high-speed steel grinding drill, comprising a drill bit (1) and a mounting base (2), characterized in that: The drill bit (1) has a mounting head (11) at the top, and a mounting opening (22) is provided on the inner side of the bottom of the mounting seat (2). The mounting head (11) is assembled and disassembled on the mounting opening (22). Limiting bars (12) are provided on both sides of the mounting head (11), and limiting rails (21) are provided on both sides of the interior of the mounting opening (22). The limiting bars (12) are slidably connected to the limiting rails (21), and a mounting groove (3) is provided on one side of the interior of the mounting opening (22), and a spring (4) is provided on the inner side of the mounting groove (3). A clamping block (33) is provided on the top of the spring (4), and the bottom of the clamping block (33) is inclined. A clamping groove (14) is provided on one side of the top of the mounting head (11), and a fixing opening (23) is provided on one side of the outside of the mounting seat (2). A screw opening (13) is provided on one side of the bottom of the mounting head (11), and a fixing bolt (24) is provided on the outside of the fixing opening (23). The fixing bolt (24) passes through the fixing opening (23), and the fixing bolt (24) is threadedly connected to the fixing screw opening (13).

2. A self-centering high-speed steel grinding drill according to claim 1, characterized in that: Limiting blocks (32) are provided on both sides of the clamping block (33), and limiting slots (31) are provided on both sides of the installation slot (3), and the limiting blocks (32) are slidably connected to the limiting slots (31).

3. The self-centering high-speed steel grinding drill according to claim 1, characterized in that: A docking strip (34) is provided on the top of the clamping block (33), and a docking rail (35) is provided on the top of the installation slot (3) and the top of the clamping slot (14), and the docking strip (34) and the docking rail (35) are slidably connected.

4. The self-centering high-speed steel grinding drill according to claim 1, characterized in that: A sliding rod (41) is provided on the rear side of the clamping block (33), a sliding opening (43) is provided on the rear side of the mounting slot (3), and the sliding rod (41) and the sliding opening (43) are in sliding connection.

5. The self-centering high-speed steel grinding drill according to claim 4, characterized in that: A pull rod (42) is provided on the outside of the sliding rod (41), and the pull rod (42) is located outside the installation opening (22).

6. The self-centering high-speed steel grinding drill according to claim 1, characterized in that: A threaded opening (5) is provided on the other side of the outside of the mounting seat (2), a reinforcing bolt (51) is provided inside the threaded opening (5), and the reinforcing bolt (51) is threadedly connected to the threaded opening (5).

7. The self-centering high-speed steel grinding drill according to claim 6, characterized in that: A fixing head (52) is provided on the inner side of the reinforcing bolt (51).

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