Multifunctional drill bit for machining

Abstract

The utility model relates to the field of drill bits, in particular to a multifunctional drill bit for machining, which comprises a handle part, a drill bit part arranged at the bottom of the handle part, a plurality of blade mounting grooves uniformly arranged on the drill bit part, tungsten steel blades mounted at the blade mounting grooves, and a limiting mechanism mounted at the top of the drill bit part and abutted against the tungsten steel blades. The limiting mechanism comprises a limiting circular ring plate, a plurality of limiting insertion plates are evenly and fixedly connected to the bottom of the limiting circular ring plate, and the limiting insertion plates are inserted into the blade mounting grooves and located above the tungsten steel blades. And the arranged limiting mechanism can clamp the multiple tungsten steel blades at a time, so that all the tungsten steel blades can be replaced at a time only by disassembling one limiting mechanism when the blades are abraded and need to be replaced after the multifunctional drill bit is used for a long time, and the efficiency of replacing the blades of the multifunctional drill bit is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of drill bit technology, and in particular to a multifunctional drill bit for machining. Background Technology

[0002] In machining, drill bits are frequently used. Drill bits are cutting tools used to drill through holes or blind holes in solid materials, and to enlarge existing holes. Commonly used drill bits include twist drills, flat drills, center drills, deep hole drills, and bushing drills.

[0003] Some multi-functional drill bits are equipped with multiple cutting tools. Most of these tools are mounted using a single mounting component. Therefore, when the cutting tools wear out in batches, each mounting component needs to be removed before the cutting tools can be replaced one by one. This makes replacing the cutting tools on the drill bit a very time-consuming process. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-functional drill bit for machining.

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

[0006] A multi-functional drill bit for machining includes a shank, a drill head is provided at the bottom of the shank, a plurality of blade mounting slots are evenly provided on the drill head, tungsten carbide blades are installed in each of the blade mounting slots, and a limit mechanism is installed on the top of the drill head to abut the tungsten carbide blades.

[0007] The limiting mechanism includes a limiting ring plate, and multiple limiting insert plates are evenly fixedly connected to the bottom of the limiting ring plate. The limiting insert plates are inserted into the blade mounting groove and located above the tungsten carbide blade.

[0008] Furthermore, a preferred structure is that the tungsten carbide blade has a cutting edge on one side, a protruding plate on the top of the tungsten carbide blade, and a limiting part on the bottom of the tungsten carbide blade.

[0009] In addition, a preferred structure is that the bottom of the blade mounting groove is provided with a mounting step, and the limiting part is used to be installed at the mounting step.

[0010] In addition, a preferred structure is that the limiting ring plate is provided with a plurality of mounting holes evenly distributed, and fixing components are installed at the mounting holes.

[0011] In addition, a preferred structure is that chip removal grooves are provided on the side wall of the drill head between the blade mounting grooves, and multiple bolt holes are provided at the bottom of the drill head.

[0012] Furthermore, in a preferred configuration, the fixing component is used to screw onto the bolt hole.

[0013] The beneficial effects of this utility model are as follows: By opening multiple blade mounting slots on the drill bit, multiple tungsten carbide blades can be installed on the drill bit at one time. The limiting mechanism can lock multiple tungsten carbide blades at one time, so that when the blades of the multi-functional drill bit are worn and need to be replaced after a long period of use, only one limiting mechanism needs to be removed to replace all the tungsten carbide blades at one time, which effectively improves the efficiency of blade replacement of the multi-functional drill bit. Attached Figure Description

[0014] Figure 1 Schematic diagram of a multi-functional drill bit with blades installed. Figure 1 ;

[0015] Figure 2 Schematic diagram of a multi-functional drill bit with blades installed. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the structure of a multi-functional drill bit after disassembly.

[0017] Figure 4 This is a schematic diagram of the drill bit structure;

[0018] Figure 5 This is a schematic diagram of the limiting mechanism;

[0019] Figure 6 This is a schematic diagram of the structure of a tungsten carbide cutting tool;

[0020] Figure 7 This is a schematic diagram of the blade mounting slot.

[0021] In the diagram: 1. Shank, 2. Drill head, 21. Chip removal groove, 22. Blade mounting groove, 221. Mounting step, 23. Bolt hole, 3. Limiting mechanism, 31. Limiting ring plate, 311. Mounting hole, 32. Limiting insert plate, 4. Fixing component, 5. Tungsten carbide blade, 51. Cutting edge, 52. Protruding plate, 53. Limiting part. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-7A multi-functional drill bit for machining includes a shank 1, a drill head 2 at the bottom of the shank 1, and multiple blade mounting slots 22 evenly distributed on the drill head 2. Tungsten carbide blades 5 are installed in each of the blade mounting slots 22. A limiting mechanism 3 is installed on the top of the drill head 2, which abuts against the tungsten carbide blades 5. The limiting mechanism 3 includes a limiting ring plate 31, and multiple limiting inserts 32 are evenly fixedly connected to the bottom of the limiting ring plate 31. The limiting inserts 32 are inserted into the blade mounting slots 22 and located above the tungsten carbide blades 5. The limiting inserts 32 can limit and hold multiple tungsten carbide blades 5 at one time.

[0024] Furthermore, the tungsten carbide insert 5 has a cutting edge 51 on one side, a protruding plate 52 on the top of the tungsten carbide insert 5, and a limiting part 53 at the bottom of the tungsten carbide insert 5. The cutting edge 51 allows milling to be performed on both its side and bottom. Thus, when the drill head 2 is enlarging the hole on the side, the bottom surface of the cutting edge 51 is lower than the bottom surface of the drill head 2, so it can also be face milled, thereby realizing a multi-functional drill bit.

[0025] In addition, the bottom of the blade mounting groove 22 is provided with a mounting step 221, and the limiting part 53 is used to be installed at the mounting step 221. The mounting step 221 can effectively hold the tungsten carbide blade 5.

[0026] Meanwhile, multiple mounting holes 311 are evenly provided on the limiting ring plate 31, and a fixing component 4 is installed at the mounting hole 311. The fixing component 4 is used to install the limiting mechanism 3 onto the drill head 2.

[0027] Furthermore, chip removal grooves 21 are provided on the side wall of the drill head 2 between the blade mounting grooves 22, and multiple bolt holes 23 are provided at the bottom of the drill head 2.

[0028] The fixing component 4 is used to screw onto the bolt hole 23.

[0029] In this embodiment, when disassembling and replacing the worn tungsten carbide blade 5, simply unscrew the three fixing parts 4 from the bolt holes 23 and remove them. Then, the limiting mechanism 3 can be removed, allowing the limiting insert 32, which originally held the protruding plate 52, to separate from the blade mounting groove 22. This prevents each tungsten carbide blade 5 from being held in place by the limiting insert 32. At this point, the tungsten carbide blade 5 can be removed from the blade mounting groove 22 and replaced with a new tungsten carbide blade 5. The mounting step 221 effectively supports the tungsten carbide blade 5, preventing it from falling downwards, and works with the limiting insert 32 to hold the protruding plate 52, thereby effectively fixing the tungsten carbide blade 5.

[0030] In this utility model, by opening multiple blade mounting slots 22 on the drill head 2, multiple tungsten carbide blades 5 can be installed on the drill head 2 at one time. The limiting mechanism 3 can lock multiple tungsten carbide blades 5 at one time. Thus, when the blades of the multi-functional drill bit are worn and need to be replaced after long-term use, only one limiting mechanism 3 needs to be removed to replace all the tungsten carbide blades 5 at one time, which effectively improves the efficiency of blade replacement of the multi-functional drill bit.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-functional drill bit for machining, comprising a shank (1), characterized in that, The bottom of the handle (1) is provided with a drill head (2), and a plurality of blade mounting slots (22) are evenly provided on the drill head (2). Tungsten steel blades (5) are installed in each of the blade mounting slots (22). A limiting mechanism (3) is installed on the top of the drill head (2), and the limiting mechanism (3) abuts against the tungsten steel blades (5). The limiting mechanism (3) includes a limiting ring plate (31), and multiple limiting inserts (32) are evenly fixedly connected to the bottom of the limiting ring plate (31). The limiting inserts (32) are inserted into the blade mounting groove (22) and located above the tungsten steel blade (5).

2. The multi-functional drill bit for machining according to claim 1, characterized in that, The tungsten carbide blade (5) has a cutting edge (51) on one side, a protruding plate (52) on the top of the tungsten carbide blade (5), and a limiting part (53) on the bottom of the tungsten carbide blade (5).

3. The multi-functional drill bit for machining according to claim 1, characterized in that, The blade mounting groove (22) has a mounting step (221) at the bottom, and the limiting part (53) is used to be installed at the mounting step (221).

4. A multi-functional drill bit for machining according to claim 1, characterized in that, The limiting ring plate (31) is provided with a plurality of mounting holes (311) evenly distributed, and a fixing component (4) is installed at the mounting hole (311).

5. A multi-functional drill bit for machining according to claim 1, characterized in that, Chip removal grooves (21) are provided on the side wall of the drill head (2) between the blade mounting grooves (22), and multiple bolt holes (23) are provided at the bottom of the drill head (2).

6. A multi-functional drill bit for machining according to claim 4, characterized in that, The fixing component (4) is used to screw onto the bolt hole (23).

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