Alloy drill bit capable of being quickly disassembled and assembled

Abstract

The utility model relates to the technical field of alloy drill bits, in particular to a quick disassembly and assembly type alloy drill bit which comprises a drill bit connecting handle, a mounting seat is connected to the bottom end of the drill bit connecting handle in an inserted mode, the top end of the mounting seat is fixedly connected with the drill bit connecting handle through a locking mechanism, and a drill tip is connected into the mounting seat in an inserted mode. Two sets of drill bit drill bodies are symmetrically connected to the bottom end of the mounting base, first cutting edges are inserted into the bottom ends of the two sets of drill bit drill bodies, a drill sleeve is clamped to the outer side of the mounting base, two sets of second cutting edges are symmetrically inserted into the bottom end of the drill sleeve, and a clamping handle is fixedly connected to the top end of the drill bit connecting handle; compared with an existing alloy drill bit, the alloy drill bit has the advantages that each abraded position of the alloy drill bit can be independently disassembled and assembled through the design, meanwhile, the operation is simple and convenient, and the use cost of the alloy drill bit is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy drill bits, in particular to a quick-disassembly and assembly type alloy drill bit. Background Art

[0002] Carbide drill bits are divided into four basic types: solid carbide drill bits, carbide indexable insert drill bits, welded carbide drill bits and replaceable carbide crown drill bits. Generally, a solid carbide drill bit can only be reground 7 to 10 times, while a welded carbide drill bit can only be reground 3 to 4 times. In addition, the effects of welded carbide drill bits before and after grinding are very different from those of solid carbide drill bits, and the service life of the carbide drill bit will be greatly shortened after regrinding.

[0003] After searching, publication number CN218964142U discloses a quick-detachable alloy drill bit, which includes a connecting column, a base provided on the top of the connecting column, and an alloy drill body fixedly connected to the side of the base away from the connecting column. Two positioning blocks are symmetrically fixedly connected to the bottom of the base, and the top of the connecting column is symmetrically provided with positioning grooves for use with the positioning blocks.

[0004] The above-mentioned utility model realizes the function of positioning when the alloy drill bit body is installed by providing a positioning block and a positioning groove, which is convenient for quick installation and easy to use. However, the alloy drill bit body will wear out after long-term use. When replacing, the alloy drill bit body needs to be replaced, and the worn drill bit wears unevenly, which increases the economic loss of the user.

[0005] Therefore, it is particularly important to design a quick-disassembly type alloy drill bit to solve the above-mentioned defects. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model designs a quick-detachable alloy drill bit, which aims to solve the technical problem that the quick-detachable alloy drill bit in the existing technology needs to be replaced when the alloy drill bit body is replaced, and the worn drill bit wears unevenly, thereby increasing the economic loss of the user.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A quick-detachable alloy drill bit includes a drill bit connecting handle, a mounting seat is inserted into the bottom end of the drill bit connecting handle, the top of the mounting seat is fixedly connected to the drill bit connecting handle through a locking mechanism, a drill tip is inserted into the interior of the mounting seat, two groups of drill body are symmetrically connected to the bottom end of the mounting seat, the bottom ends of the two groups of drill body are both inserted with a first blade, a drill sleeve is clamped on the outer side of the mounting seat, and two groups of second blades are symmetrically inserted into the bottom end of the drill sleeve.

[0009] As a preferred solution of the present invention, the top end of the drill bit connecting handle is fixedly connected to a clamping handle, and a mounting groove is provided at a position of the bottom end of the drill bit connecting handle corresponding to the mounting seat.

[0010] As a preferred solution of the present invention, chip guide grooves are provided on the outer side of the mounting seat at positions corresponding to the drill bodies of the two groups of drill bits, and chip removal arc grooves are provided on the drill sleeve at positions corresponding to the chip guide grooves.

[0011] As a preferred solution of the present invention, the locking mechanism includes two groups of operating buttons symmetrically and slidingly connected to the inside of the drill bit connecting handle, a spring is fixedly connected between the two groups of operating buttons, the bottom ends of the two groups of operating buttons are fixedly connected to locking blocks, and a locking groove is opened at a position inside the mounting base corresponding to the locking block.

[0012] As a preferred solution of the present invention, the two groups of operating buttons are slidably connected to the drill bit connecting handle through a movable groove, and a limiting groove is provided on the end of the drill bit connecting handle opposite to the mounting seat and located on the outside of the locking block.

[0013] As a preferred solution of the present invention, the top end of the drill tip is plugged into the mounting seat through a connecting column, the internal thread of the mounting seat is connected with a fixing screw, and one end of the fixing screw located inside the mounting seat abuts against the connecting column.

[0014] As a preferred solution of the present invention, both sides of the two groups of the first blades are fixedly connected with first plugging edges, and a first slot is provided inside the drill body at a position corresponding to the first plugging edge.

[0015] As a preferred solution of the present invention, two groups of T-shaped slots are symmetrically opened on the outside of the drill sleeve, and clamping columns are fixedly connected to the positions on the outside of the mounting seat corresponding to the two groups of T-shaped slots, and the clamping columns are clamped with the T-shaped slots.

[0016] As a preferred solution of the present invention, second plugging edges are fixedly connected to both sides of the second blade, and a second slot is provided inside the drill sleeve at a position corresponding to the second plugging edge.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In the utility model, through the coordinated design of the drill connecting handle, the mounting seat and the locking mechanism, when the alloy drill bit is used, the drill connecting handle is fixedly mounted on the machine tool through the clamping handle, and the two sets of operating buttons are pinched to compress the springs to make the two sets of locking blocks move relative to each other, and then the mounting seat is inserted into the mounting groove at the bottom end of the drill connecting handle. During this process, the two sets of locking blocks are inserted into the interior of the top end of the mounting seat, and the two sets of operating buttons are released after the mounting seat and the drill connecting handle are completely docked. The two sets of locking blocks are stuck in the locking groove inside the mounting seat under the rebound of the spring, thereby facilitating and quickly disassembling and assembling the mounting seat, and further, when the mounting seat is damaged, there is no need to replace the entire alloy drill bit, thereby reducing the use cost of the alloy drill bit.

[0019] 2. In the utility model, through the coordinated design of the mounting base, drill tip, drill body, first cutting edge, drill sleeve and second cutting edge, the drill tip, drill body, first cutting edge, drill sleeve and second cutting edge can be disassembled and replaced separately when worn, and the operation is simple and convenient, which greatly reduces the use cost of the alloy drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model from the first perspective;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second perspective;

[0022] Figure 3 This is a schematic diagram of the structure of the mounting base of the utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the drill bit connecting handle and the mounting base of the utility model;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic diagram of the first blade structure of the utility model;

[0026] Figure 7 This is a schematic diagram of the second blade structure of the utility model.

[0027] In the figure: 1. Drill bit connecting handle; 101. Clamping handle; 102. Mounting groove; 2. Mounting seat; 201. Chip guide groove; 202. Chip removal arc groove; 3. Locking mechanism; 301. Operation button; 302. Spring; 303. Locking block; 304. Locking groove; 305. Movable groove; 306. Limiting groove; 4. Drill tip; 401. Connecting column; 402. Fixing screw; 5. Drill bit body; 6. First cutting edge; 601. First plug-in edge; 7. Drill sleeve; 701. T-shaped slot; 702. Clamping column; 8. Second cutting edge; 801. Second plug-in edge. DETAILED DESCRIPTION

[0028] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0029] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0030] A quick-detachable alloy drill bit includes a drill bit connecting handle 1, a mounting base 2 is inserted into the bottom end of the drill bit connecting handle 1, the top of the mounting base 2 is fixedly connected to the drill bit connecting handle 1 through a locking mechanism 3, a drill tip 4 is inserted into the interior of the mounting base 2, two groups of drill body 5 are symmetrically connected to the bottom end of the mounting base 2, the bottom end of the two groups of drill body 5 are both inserted with a first blade 6, a drill sleeve 7 is clamped on the outer side of the mounting base 2, and two groups of second blades 8 are symmetrically inserted into the bottom end of the drill sleeve 7.

[0031] First, the top end of the drill bit connecting handle 1 is fixedly connected with a clamping handle 101, and a mounting groove 102 is opened at the position corresponding to the mounting seat 2 at the bottom end of the drill bit connecting handle 1. The drill bit connecting handle 1 is fixedly installed on the machine tool through the clamping handle 101, and the top end of the mounting seat 2 is inserted into the interior of the drill bit connecting handle 1 through the mounting groove 102 for docking installation.

[0032] Furthermore, chip guide grooves 201 are provided at positions on the outside of the mounting seat 2 corresponding to the two groups of drill bodies 5, and chip removal arc grooves 202 are provided at positions on the drill sleeve 7 corresponding to the chip guide grooves 201. After the drill sleeve 7 is installed on the outside of the mounting seat 2, the waste generated when the first blade 6 and the second blade 8 drill a hole is guided out of the drill hole through the chip guide groove 201, and then discharged through the chip removal arc groove 202 to avoid clogging at the drill hole, thereby improving the drilling efficiency and drilling quality.

[0033] Then, the locking mechanism 3 includes two groups of operating buttons 301 symmetrically and slidably connected to the inside of the drill bit connecting handle 1, a spring 302 is fixedly connected between the two groups of operating buttons 301, and the bottom ends of the two groups of operating buttons 301 are fixedly connected to locking blocks 303. A locking groove 304 is opened at the position corresponding to the locking block 303 inside the mounting base 2. Before docking and installing the mounting base 2 and the drill bit connecting handle 1, first pinch the two groups of operating buttons 301 to compress the spring 302, so that the two groups of locking blocks 303 move relative to each other, and then The mounting base 2 is inserted into the mounting groove 102 at the bottom end of the drill connecting handle 1. During this process, the two sets of locking blocks 303 are inserted into the interior of the top end of the mounting base 2. After the mounting base 2 and the drill connecting handle 1 are completely docked, the two sets of operating buttons 301 are released. Under the rebound of the spring 302, the two sets of locking blocks 303 are stuck in the locking groove 304 inside the mounting base 2, so that the mounting base 2 can be disassembled and assembled quickly and conveniently. When the mounting base 2 is damaged, there is no need to replace the entire alloy drill bit, thereby reducing the cost of using the alloy drill bit.

[0034] Furthermore, both sets of operating buttons 301 are slidably connected to the drill bit connecting handle 1 through movable grooves 305. A limiting groove 306 is provided at the end of the drill bit connecting handle 1 opposite to the mounting seat 2 and located on the outside of the locking block 303. The operating button 301 slides inside the drill bit connecting handle 1 through the movable grooves 305, and the movement of the locking block 303 is limited by the limiting grooves 306 to avoid excessive compression of the spring 302 and affecting its elasticity.

[0035] Among them, the top end of the drill tip 4 is plugged into the mounting base 2 through the connecting column 401, and the internal thread of the mounting base 2 is connected with a fixing screw 402, and the fixing screw 402 is located at one end inside the mounting base 2 and abuts against the connecting column 401. The drill tip 4 is plugged into the inside of the mounting base 2 through the connecting column 401 and is fixed by the fixing screw 402. When the drill tip 4 is worn, it can be disassembled and replaced separately, thereby reducing the use cost of the alloy drill bit.

[0036] Furthermore, both sides of the two groups of first cutting edges 6 are fixedly connected with a first plug-in edge 601, and a first slot is opened at a position corresponding to the first plug-in edge 601 inside the drill body 5. The first cutting edge 6 is plugged into the first slot inside the drill body 5 through the first plug-in edge 601. When the first cutting edge 6 is worn, it can be pulled out from the inside of the drill body 5 for replacement, further reducing the use cost of the alloy drill bit.

[0037] Second, the outer side of the drill sleeve 7 is symmetrically provided with two groups of T-shaped clamping grooves 701, the outer side of the mounting seat 2 is fixedly connected with clamping columns 702 corresponding to the two groups of T-shaped clamping grooves 701, the clamping columns 702 are clamped with the T-shaped clamping grooves 701, when the drill sleeve 7 is installed, the top end of the T-shaped clamping groove 701 is aligned with the position of the clamping column 702, and then the drill sleeve 7 is rotated to clamp the clamping column 702 into the inner side of the T-shaped clamping groove 701, which not only facilitates the installation of the drill sleeve 7, but also facilitates the separate disassembly and replacement of the drill sleeve 7 when the drill sleeve 7 is damaged, thereby further reducing the use cost of the alloy drill bit.

[0038] Finally, the second cutting edge 8 is fixedly connected with second plug-in edges 801 on both sides, second insertion grooves are formed in the inner side of the drill sleeve 7 corresponding to the second plug-in edges 801, and the second cutting edge 8 is inserted into the inner side of the drill sleeve 7 through the second plug-in edges 801, so that the second cutting edge 8 can be individually extracted from the inner side of the drill sleeve 7 for replacement when the second cutting edge 8 is worn, thereby further reducing the use cost of the alloy drill bit.

[0039] In the embodiment, the implementation scene is specifically as follows: when the alloy drill bit is used, the drill bit connecting handle 1 is fixedly installed on the machine tool through the clamping handle 101, the two groups of operation buttons 301 are pinched to compress the springs 302, so that the two groups of locking blocks 303 are relatively moved, then the mounting seat 2 is inserted into the mounting groove 102 at the bottom end of the drill bit connecting handle 1, in this process, the two groups of locking blocks 303 are inserted into the inner side of the top end of the mounting seat 2, the two groups of operation buttons 301 are released after the mounting seat 2 and the drill bit connecting handle 1 are completely connected, and the two groups of locking blocks 303 are clamped into the locking grooves 304 in the inner side of the mounting seat 2 under the rebound of the springs 302, so that the mounting seat 2 is conveniently and quickly disassembled and assembled, thereby the alloy drill bit does not need to be replaced as a whole when the mounting seat 2 is damaged, the drill tip 4 is inserted into the inner side of the mounting seat 2 through the connecting column 401 and is fixed through the fixing screw 402, the drill tip 4 can be individually disassembled and replaced when the drill tip 4 is worn, the first cutting edge 6 is inserted into the first insertion groove in the inner side of the drill bit body 5 through the first plug-in edge 601, the first cutting edge 6 can be individually extracted from the inner side of the drill bit body 5 for replacement when the first cutting edge 6 is worn, the drill sleeve 7 is installed by aligning the top end of the T-shaped clamping groove 701 with the position of the clamping column 702 and then rotating the drill sleeve 7 to clamp the clamping column 702 into the inner side of the T-shaped clamping groove 701, which not only facilitates the installation of the drill sleeve 7, but also facilitates the separate disassembly and replacement of the drill sleeve 7 when the drill sleeve 7 is damaged, the second cutting edge 8 is inserted into the inner side of the drill sleeve 7 through the second plug-in edge 801, the second cutting edge 8 can be individually extracted from the inner side of the drill sleeve 7 for replacement when the second cutting edge 8 is worn, and the whole operation process is simple and convenient, compared with the existing alloy drill bit, the alloy drill bit can be individually disassembled and assembled at each worn position through the design, the operation is simple and convenient, and the use cost of the alloy drill bit is greatly reduced.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-detachable alloy drill bit, comprising a drill bit connecting handle (1), characterized in that: The bottom end of the drill bit connecting handle (1) is plugged with a mounting seat (2), the top end of the mounting seat (2) is fixedly connected to the drill bit connecting handle (1) via a locking mechanism (3), a drill tip (4) is plugged into the interior of the mounting seat (2), two groups of drill bodies (5) are symmetrically connected to the bottom end of the mounting seat (2), the bottom ends of the two groups of drill bodies (5) are both plugged with a first blade (6), a drill sleeve (7) is clamped on the outside of the mounting seat (2), and two groups of second blades (8) are symmetrically plugged into the bottom end of the drill sleeve (7).

2. The quick-detachable alloy drill bit according to claim 1, characterized in that: The top end of the drill bit connecting handle (1) is fixedly connected to a clamping handle (101), and a mounting groove (102) is provided at a position of the bottom end of the drill bit connecting handle (1) corresponding to the mounting seat (2).

3. The quick-detachable alloy drill bit according to claim 1, characterized in that: Chip guide grooves (201) are provided at positions on the outside of the mounting seat (2) corresponding to the two sets of drill bodies (5), and chip removal arc grooves (202) are provided at positions on the drill sleeve (7) corresponding to the chip guide grooves (201).

4. The quick-detachable alloy drill bit according to claim 1, characterized in that: The locking mechanism (3) comprises two groups of operating buttons (301) symmetrically slidably connected to the inside of the drill bit connecting handle (1), a spring (302) fixedly connected between the two groups of operating buttons (301), a locking block (303) fixedly connected to the bottom ends of the two groups of operating buttons (301), and a locking groove (304) is provided at a position inside the mounting seat (2) corresponding to the locking block (303).

5. The quick-detachable alloy drill bit according to claim 4, characterized in that: The two groups of operating buttons (301) are both slidably connected to the drill bit connecting handle (1) through a movable groove (305), and a limiting groove (306) is provided on the end of the drill bit connecting handle (1) opposite to the mounting seat (2) and located outside the locking block (303).

6. The quick-detachable alloy drill bit according to claim 1, characterized in that: The top end of the drill tip (4) is plugged into the mounting seat (2) via a connecting column (401); the internal thread of the mounting seat (2) is connected to a fixing screw (402); and one end of the fixing screw (402) located inside the mounting seat (2) abuts against the connecting column (401).

7. The quick-detachable alloy drill bit according to claim 1, characterized in that: Both sides of the two groups of the first blades (6) are fixedly connected with first plugging edges (601), and a first slot is provided inside the drill body (5) at a position corresponding to the first plugging edge (601).

8. The quick-detachable alloy drill bit according to claim 1, characterized in that: Two groups of T-shaped slots (701) are symmetrically provided on the outside of the drill sleeve (7), and clamping columns (702) are fixedly connected at positions on the outside of the mounting seat (2) corresponding to the two groups of T-shaped slots (701), and the clamping columns (702) are clamped with the T-shaped slots (701).

9. The quick-detachable alloy drill bit according to claim 1, characterized in that: Second plugging edges (801) are fixedly connected to both sides of the second blade (8), and a second slot is provided inside the drill sleeve (7) at a position corresponding to the second plugging edge (801).

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