A type of woodworking support drill

Abstract

This utility model belongs to the field of woodworking drill technology, and particularly relates to a woodworking shank drill, comprising: a drill bit, having a cutting edge and a chip removal groove, with three cutting edges and three chip removal grooves; a first drill rod, connected to the bottom of the drill bit, having an axially arranged connecting groove and a radially arranged mounting hole on the first drill rod, and an axially arranged limiting groove on the inner wall of the connecting groove; a second drill rod, having a limiting protrusion and several connecting holes arranged in a linear array along the axial direction, the second drill rod and the connecting groove being inserted into each other, and the limiting protrusion and the limiting groove being adapted to each other; and a fastener, which is installed at the mounting hole and connected to one of the connecting holes; the beneficial effect of this utility model is that by using the fastener to connect and fix with the connecting holes at different positions on the second drill rod, the length of the drill shank of the woodworking shank drill can be adjusted, allowing the woodworking shank drill to adapt to drilling holes of different depths.

Description

Technical Field

[0001] This utility model belongs to the field of woodworking drilling technology, and in particular relates to a woodworking support drill. Background Technology

[0002] The drill bit is a simple-structured woodworking drill with high drilling efficiency, which can be used to process timber or planks.

[0003] In the existing technology, most augers have a fixed length. The operator installs the auger on the drill bit to perform drilling operations. Since the length of the auger is fixed, the drilling depth of the drill bit is also fixed. When drilling operations of different depths are required, augers of different lengths need to be used, resulting in high costs and low economic efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a woodworking support drill to address the aforementioned technical problems.

[0005] In view of this, the present invention provides a woodworking support drill, comprising:

[0006] The drill bit is equipped with a cutting edge and a chip removal groove, with three cutting edges and three chip removal grooves in total.

[0007] The first drill rod is connected to the bottom of the drill bit. The first drill rod has a connecting groove arranged along the axial direction and a mounting hole arranged along the radial direction. The inner wall of the connecting groove also has a limiting groove arranged along the axial direction.

[0008] The second drill rod is provided with a limiting protrusion and several connecting holes arranged in a linear array along the axial direction. The second drill rod and the connecting groove are inserted into each other, and the limiting protrusion and the limiting groove are adapted to each other.

[0009] This also includes fasteners, which are installed at the mounting holes and connected to one of the connection holes.

[0010] Furthermore, there are several limiting protrusions and limiting grooves, and they are connected in a one-to-one correspondence.

[0011] Furthermore, it also includes a threaded drill tip, which is located at the top of the drill bit and has a tapered structure.

[0012] Furthermore, a cutting tip is provided on the cutting edge, and the cutting tip protrudes from the cutting edge.

[0013] Furthermore, the mounting holes are countersunk holes.

[0014] Furthermore, the second drill pipe is equipped with graduation lines.

[0015] Furthermore, the second drill pipe is provided with a mounting part, and the mounting part has a positioning groove.

[0016] The beneficial effects of this utility model are:

[0017] 1. By using fasteners to connect and fix the drill bit to the connecting holes at different positions on the second drill rod, the length of the drill shank of the woodworking support drill can be adjusted, so that the woodworking support drill can be adapted to process drilling holes of different depths.

[0018] 2. The connection between the limiting protrusion and the limiting groove can restrict the circumferential rotation between the first drill rod and the second drill rod, thereby enhancing the connection between the first drill rod and the second drill rod. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0022] The markings in the diagram are as follows:

[0023] 1. Drill bit; 11. Cutting edge; 12. Chip removal groove; 13. Thread drill tip; 14. Cutting tip; 2. First drill rod; 21. Connecting groove; 22. Mounting hole; 23. Limiting groove; 3. Second drill rod; 31. Limiting protrusion; 32. Connecting hole; 33. Scale line; 34. Mounting part; 35. Positioning groove; 4. Fastener. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] Example 1:

[0027] This embodiment provides a woodworking support drill, including:

[0028] Drill bit 1, which is provided with a cutting edge 11 and a chip removal groove 12, both of which have three cutting edges 11 and three chip removal grooves 12;

[0029] The first drill rod 2 is connected to the bottom of the drill bit 1. The first drill rod 2 has a connecting groove 21 arranged along the axial direction and a mounting hole 22 arranged along the radial direction. The inner wall of the connecting groove 21 also has a limiting groove 23 arranged along the axial direction.

[0030] The second drill rod 3 is provided with a limiting protrusion 31 and a number of connecting holes 32 arranged in a linear array along the axial direction. The second drill rod 3 and the connecting groove 21 are inserted into each other, and the limiting protrusion 31 and the limiting groove 23 are adapted to each other.

[0031] It also includes a fastener 4, which is installed at the mounting hole 22 and connected to one of the connection holes 32.

[0032] In this technical solution, the drill bit 1 is made of alloy steel, which has high strength and corrosion resistance, and can prevent the drill bit 1 from rusting and improve durability. The three cutting edges 11 on the drill bit 1 are used to rotate and cut wood, and the chips generated by cutting will be discharged along the chip discharge groove 12 due to the rotational force.

[0033] The drill shank of the woodworking support drill consists of a first drill rod 2 and a second drill rod 3. One end of the first drill rod 2 is integrally connected to the bottom of the drill bit 1, and the other end of the first drill rod 2 is provided with a connecting groove 21 arranged along the axial direction. A limiting groove 23 is also provided on the inner wall of the connecting groove 21. A limiting protrusion 31 arranged along the axial direction is integrally connected to the periphery of the second drill rod 3. One end of the second drill rod 3 is inserted into the connecting groove 21, and the limiting protrusion 31 is also inserted into the limiting groove 23 and connected to the limiting groove 23. Then, the fastener 4 is installed in the mounting hole 22 and connected to the connecting hole 32 to realize the fixed connection between the first drill rod 2 and the second drill rod 3.

[0034] Through the above structural design, the length of the drill shank of the woodworking screw drill is adjusted by using fasteners 4 to connect and fix it to the connecting holes 32 at different positions on the second drill rod 3. The second drill rod 3 is installed on the drill bit for use. By adjusting the length of the drill shank, the distance between the drill bit 1 and the drill bit is changed, allowing the drill bit 1 to feed to a deeper position in the wood, achieving drilling processing at different depths. In addition, the connection and cooperation between the limiting protrusion 31 and the limiting groove 23 can restrict the circumferential rotation between the first drill rod 2 and the second drill rod 3, enhancing the connection firmness between the first drill rod 2 and the second drill rod 3.

[0035] Example 2:

[0036] This embodiment provides a woodworking support drill, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0037] Furthermore, there are multiple limiting protrusions 31 and limiting grooves 23, and they are connected one-to-one. In this technical solution, preferably, there are four limiting protrusions 31 and limiting grooves 23, and the four limiting protrusions 31 and limiting grooves 23 are arranged in a ring array. Through this structural design, the circumferential limiting effect between the first drill rod 2 and the second drill rod 3 is enhanced, effectively improving the connection stability of the first drill rod 2 and the second drill rod 3.

[0038] Example 3:

[0039] This embodiment provides a woodworking support drill, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] Furthermore, it also includes a threaded drill tip 13, which is located at the top of the drill bit 1 and has a tapered structure.

[0041] In this technical solution, a tapered threaded drill tip 13 is provided at the top of the drill bit 1. The threaded drill tip 13 plays a positioning role in the drilling process of the woodworking support drill, enhances the stability of the drilling operation, and enables the woodworking support drill to drill into the wood more quickly, thereby improving drilling efficiency.

[0042] Example 4:

[0043] This embodiment provides a woodworking support drill, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0044] Furthermore, a cutting tip 14 is provided on the cutting edge 11, and the cutting tip 14 protrudes from the cutting edge 11.

[0045] In this technical solution, a protruding cutting tip 14 is designed on the cutting edge 11. The cutting tip 14 is integrally connected to the cutting edge 11 and located on the outer side of the drill bit 1 in the radial direction. When the drill bit 1 processes wood, the cutting tip 14 will first contact the wood surface to cut the wood, so that an annular groove is generated on the wood surface. The cutting tip 14 first penetrates into the annular groove, which plays a positioning role for the cutting operation of the cutting edge 11, further enhancing the stability of the drilling operation and effectively improving the drilling efficiency.

[0046] Example 5:

[0047] This embodiment provides a woodworking support drill, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0048] Furthermore, the mounting hole 22 is a countersunk hole structure.

[0049] In this technical solution, the mounting hole 22 adopts a countersunk hole structure design, and the fastener 4 can be an internal hex screw. This structure design allows the head of the fastener 4 to be completely recessed into the first drill rod 2, preventing the head of the fastener 4 from being subjected to external forces and preventing deformation and damage to the fastener 4 from affecting the disassembly and assembly between the first drill rod 2 and the second drill rod 3, thereby affecting length adjustment. In addition, the head of the fastener 4 is hidden inside the first drill rod 2, which keeps the surface of the first drill rod 2 flat, reduces unnecessary friction or interference that the fastener 4 may cause, and also improves the aesthetics.

[0050] Example 6:

[0051] This embodiment provides a woodworking support drill, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] Furthermore, the second drill pipe 3 is provided with scale lines 33.

[0053] In this technical solution, a scale line 33 is set on the second drill rod 3, and the value of the scale line 33 corresponds to the length value of the drill shank. When the end of the first drill rod 2 is aligned with a certain position on the scale line 33, it indicates that the length of the drill shank is the corresponding value. This helps users to more easily understand the drilling depth that the woodworking servo drill can process when adjusting the length, effectively improving convenience and practicality.

[0054] Furthermore, the second drill rod 3 is provided with a mounting part 34, and the mounting part 34 has a positioning groove 35. Through this structural design, the second drill rod 3 is more firmly and stably installed and connected to the drill bit, making the drilling operation of the woodworking screw drill more stable.

[0055] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A woodworking brace, characterized in that, include: A drill bit (1) is provided with a cutting edge (11) and a chip removal groove (12), and there are three cutting edges (11) and three chip removal grooves (12). The first drill rod (2) is connected to the bottom of the drill bit (1). The first drill rod (2) has a connecting groove (21) arranged along the axial direction and a mounting hole (22) arranged along the radial direction. The inner wall of the connecting groove (21) also has a limiting groove (23) arranged along the axial direction. The second drill rod (3) is provided with a limiting protrusion (31) and a number of connecting holes (32) arranged in a linear array along the axial direction. The second drill rod (3) and the connecting groove (21) are inserted into each other, and the limiting protrusion (31) and the limiting groove (23) are adapted to each other. It also includes a fastener (4), which is installed at the mounting hole (22) and connected to one of the connection holes (32).

2. A woodworking brace according to claim 1, characterized in that The limiting protrusion (31) and the limiting groove (23) are both multiple and are connected in a one-to-one correspondence.

3. A woodworking brace according to claim 1, wherein, It also includes a threaded drill tip (13), which is located at the top of the drill bit (1) and has a conical structure.

4. A woodworking brace according to claim 1, wherein, The cutting edge (11) is also provided with a cutting tip (14), which protrudes from the cutting edge (11).

5. A woodworking support drill according to claim 1, characterized in that, The mounting hole (22) is a countersunk hole structure.

6. A woodworking support screw drill according to claim 1, characterized in that, The second drill rod (3) is provided with scale lines (33).

7. A woodworking support drill according to claim 1, characterized in that, The second drill rod (3) is provided with an installation part (34), and the installation part (34) is provided with a positioning groove (35).

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