Drilling bit with controllable cutting depth

Abstract

The utility model discloses a cutting depth controllable type drilling bit which comprises a bit body, an adjusting screw rod is arranged on the tail portion of the bit body, an adjusting assembly is arranged on the adjusting screw rod, and the adjusting assembly is installed on an adjusting sleeve. The adjusting assembly comprises an adjusting ring with a built-in thread, a plurality of connecting rods are arranged at the upper end of the adjusting ring, and the tops of the connecting rods are connected with adjusting knobs; a rotating hole is formed in the top of the adjusting sleeve, a clamping handle is arranged at the top of the adjusting sleeve, a visible window is further formed in the adjusting sleeve, and adjusting scales are arranged on one side of the visible window; the adjusting screw arranged at the rear end of the drill bit body is matched with the adjusting assembly, so that the drill bit body moves up and down, and the drilling depth of the drill bit is adjusted; and a scale pointing plate arranged at the tail part of the adjusting screw rod can help a user clearly observe the extension length of the drill bit in a visible window, so that the cutting depth of the drill bit is accurately controlled.

Description

Technical Field

[0001] The utility model relates to a cutting depth controllable drilling drill bit. Background Art

[0002] A drilling drill is a tool used to drill holes in hard materials. It is usually made of high-speed steel (HSS), cemented carbide (tungsten carbide) or other wear-resistant materials to withstand the high temperature and wear during the drilling process. The shape and design of the drill bit depends on the type of material it will be drilled and the required hole diameter. It mainly includes cutting edges, spiral grooves, shank and other parts. The drilling principle of the drill bit is based on the cutting action. By rotating and advancing the drill bit, its cutting edge contacts the workpiece material and removes the material, thereby forming a hole. The spiral grooves on the drill bit discharge the chips from the hole during the drilling process, and usually when drilling, a forward force, that is, a thrust force, needs to be applied. This force enables the drill bit to continuously cut the material and gradually form the desired hole depth.

[0003] During actual drilling, the drilling depth usually needs to be set in advance to fit the connection of connectors such as rivets. Currently, drill tools usually clamp the drill bit on an electric drill and drill manually or electrically. The cutting depth needs to be controlled by the workers themselves, which is difficult to operate and not suitable for workers with less experience. If the cutting depth is not accurately controlled, the hole will be too deep or too shallow, requiring constant adjustment, which is time-consuming and labor-intensive and has low efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cutting depth controllable drilling drill bit to improve the drilling accuracy.

[0005] Based on the technical problems existing in the background technology, the utility model proposes a cutting depth controllable drilling drill bit, comprising a drill bit body, an adjusting screw is provided at the rear of the drill bit body, an adjusting assembly is provided on the adjusting screw, the adjusting assembly is mounted on an adjusting sleeve, and the adjusting sleeve is arranged outside the drill bit body;

[0006] The adjustment assembly comprises an adjustment ring with built-in threads, a plurality of connecting rods are arranged at the upper end of the adjustment ring, and an adjustment knob is connected to the top of the connecting rod;

[0007] A rotating hole is provided on the top of the adjusting sleeve, the adjusting knob is arranged in the rotating hole, a clamping handle is provided on the top of the adjusting sleeve above the adjusting knob, a visual window is also provided on the adjusting sleeve, and an adjustment scale is provided on one side of the visual window.

[0008] Preferably, a connecting column is provided between the rear of the drill body and the adjusting screw, a scale pointing plate extends outward from the top of the adjusting screw, the scale pointing plate moves in the visible window, is placed below the adjusting ring, and is matched with the adjusting scale.

[0009] Preferably, the top of the connecting rod is connected with a rotating plate, the rotating plate is placed inside the rotating hole, the adjusting knob is installed on the top of the rotating plate, a rotating groove is provided between the rotating plate and the adjusting knob, and the rotating groove cooperates with the extending part at the rotating hole.

[0010] Preferably, the adjusting knob is placed outside the rotating hole, and a plurality of anti-slip bumps are provided on the outside of the adjusting knob.

[0011] Preferably, support rods are provided on both sides of the top of the adjusting sleeve, and the tops of the support rods jointly support the clamping handle. The length of the support rods is at least greater than the overall thickness of the adjusting knob, and the inner diameter of the support rods on both sides is greater than the outer diameter of the adjusting knob.

[0012] Preferably, the length of the adjustment scale corresponds to the length of the visible window, and the length of the visible window should be at least greater than the length of the connecting rod.

[0013] Preferably, the inner depth of the adjusting sleeve should satisfy the overall length of the drill body, and the adjusting screw is equal in length to the drill body.

[0014] Compared with the prior art, the cutting depth controllable drilling drill bit proposed by the utility model adopts the above technical solution and achieves the following technical effects:

[0015] 1. The utility model realizes the rotation and movement of the adjusting screw in the adjusting ring by cooperating with the adjusting assembly through the adjusting screw arranged at the rear end of the drill body, thereby realizing the up and down movement of the drill body, and then adjusting the drilling depth of the drill bit;

[0016] 2. The scale indicator plate arranged at the tail of the adjusting screw in the utility model can help the user to clearly observe the extension length of the drill bit in the visual window, so as to accurately control the cutting depth of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of a cutting depth controllable drilling drill bit of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of a cutting depth controllable drilling drill bit of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3This is a schematic diagram of the overall disassembled structure of a cutting depth controllable drilling drill bit of the utility model;

[0020] Figure 4 This is a schematic diagram of the drill body and the adjusting screw structure of a cutting depth controllable drilling drill of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of an adjustment component of a cutting depth controllable drilling drill bit of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of an adjusting sleeve of a cutting depth controllable drilling drill bit of the utility model;

[0023] Figure 7 The utility model is a schematic diagram of the structure of the adjusting sleeve part of a cutting depth controllable drilling drill bit.

[0024] In the figure: 1. drill bit body; 2. adjusting screw; 21. scale pointing plate; 3. adjusting assembly; 31. adjusting ring; 32. connecting rod; 33. adjusting knob; 34. rotating plate; 35. rotating groove; 36. anti-slip bump; 4. adjusting sleeve; 41. rotating hole; 42. clamping handle; 43. visual window; 44. adjusting scale; 45. support rod; 5. connecting column. DETAILED DESCRIPTION

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Reference Figure 1-7The utility model provides a cutting depth controllable drilling drill bit, comprising a drill bit body 1, an adjusting screw 2 is provided at the rear of the drill bit body 1, an adjusting assembly 3 is provided on the adjusting screw 2, the adjusting assembly 3 is mounted on an adjusting sleeve 4, and the adjusting sleeve 4 is arranged outside the drill bit body 1;

[0028] Specifically, the adjustment assembly 3 includes an adjustment ring 31 with built-in threads, a plurality of connecting rods 32 are provided at the upper end of the adjustment ring 31, and an adjustment knob 33 is connected to the top of the connecting rod 32;

[0029] Specifically, a rotating hole 41 is provided at the top of the adjusting sleeve 4, an adjusting knob 33 is arranged in the rotating hole 41, a clamping handle 42 is provided at the top of the adjusting sleeve 4 above the adjusting knob 33, a visual window 43 is also provided on the adjusting sleeve 4, and an adjustment scale 44 is provided on one side of the visual window 43.

[0030] In this embodiment, the connecting column 5 is installed at the tail of the drill body 1 so that it is firmly fixed. The adjusting screw 2 is connected to the connecting column 5 so that the adjusting screw 2 is of the same length as the drill body 1. The adjusting ring 31 is put on the adjusting screw 2, and it is ensured that its built-in thread can engage with the thread of the adjusting screw 2. A plurality of connecting rods 32 are installed on the upper end of the adjusting ring 31, and it is ensured that they are firmly connected. The adjusting knob 33 is installed on the top of the connecting rod 32. The adjusting sleeve 4 is installed on the outside of the drill body 1 so that the adjusting screw 2 can pass through the inside of the adjusting sleeve 4. The adjusting knob 33 is installed on the top of the adjusting sleeve 4 through the rotating hole 41 so that the rotating hole 41 can accommodate the adjusting knob 33. Ensure that the rotating plate 34 cooperates well with the inner side of the rotating hole 41, and cooperates with the extended part of the rotating hole 41 through the rotating groove 35.

[0031] Reference Figure 4 A connecting column 5 is provided between the tail of the drill body 1 and the adjusting screw 2. A scale pointing plate 21 extends outward from the top of the adjusting screw 2. The scale pointing plate 21 moves in the visible window 43 and is placed below the adjusting ring 31 and is matched with the adjusting scale 44.

[0032] Reference Figure 5 The top of the connecting rod 32 is connected with a rotating plate 34, the rotating plate 34 is placed inside the rotating hole 41, the adjusting knob 33 is installed on the top of the rotating plate 34, a rotating groove 35 is provided between the rotating plate 34 and the adjusting knob 33, and the rotating groove 35 cooperates with the extending part of the rotating hole 41.

[0033] Specifically, the adjusting knob 33 is disposed outside the rotating hole 41 , and a plurality of anti-slip bumps 36 are disposed outside the adjusting knob 33 .

[0034] In this embodiment, by rotating the adjusting knob 33, the adjusting ring 31 moves on the adjusting screw 2, thereby controlling the drilling depth of the drill body 1. The position of the scale pointing plate 21 is observed through the visual window 43 on the adjusting sleeve 4, and precise adjustment is performed according to the adjusting scale 44.

[0035] Reference Figure 6 Support rods 45 are provided on both sides of the top of the adjusting sleeve 4, and the tops of the support rods 45 jointly support the clamping handle 42. The length of the support rods 45 is at least greater than the overall thickness of the adjusting knob 33, and the inner diameter of the support rods 45 on both sides is greater than the outer diameter of the adjusting knob 33.

[0036] Specifically, the length of the adjustment scale 44 corresponds to the length of the visual window 43 , and the length of the visual window 43 should be at least greater than the length of the connecting rod 32 .

[0037] Specifically, the inner depth of the adjusting sleeve 4 should satisfy the overall length of the drill body 1 , and the adjusting screw 2 is equal in length to the drill body 1 .

[0038] In this embodiment, the drill bit is mounted on the drilling device and fixed by the clamping handle 42. According to the required drilling depth, the adjustment knob 33 is adjusted so that the scale pointing plate 21 corresponds to the position of the adjustment scale 44 in the visual window 43. The drilling device is started and the drilling operation is performed to ensure that the cutting depth is controllable during the process to achieve the required drilling depth.

[0039] It should be noted that during the adjustment process, ensure that the connections between the components are firm to prevent loosening or falling off. Regularly check the wear of the adjustment sleeve 4, adjustment screw 2 and other components, and perform maintenance and replacement in a timely manner. During use, ensure the stability of the drilling equipment and the cooling of the drill bit to prevent overheating and wear.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cutting depth controllable drilling drill bit, characterized in that: The drill bit comprises a drill body (1), the rear part of the drill body (1) is provided with an adjusting screw (2), the adjusting screw (2) is provided with an adjusting assembly (3), the adjusting assembly (3) is mounted on an adjusting sleeve (4), and the adjusting sleeve (4) is arranged outside the drill body (1); The adjustment assembly (3) comprises an adjustment ring (31) with a built-in thread, a plurality of connecting rods (32) are provided at the upper end of the adjustment ring (31), and an adjustment knob (33) is connected to the top of the connecting rod (32); The top of the adjusting sleeve (4) is provided with a rotation hole (41), the adjusting knob (33) is arranged in the rotation hole (41), the top of the adjusting sleeve (4) is provided with a clamping handle (42) above the adjusting knob (33), the adjusting sleeve (4) is also provided with a visual window (43), and one side of the visual window (43) is provided with an adjustment scale (44).

2. A cutting depth controllable drilling drill bit according to claim 1, characterized in that: A connecting column (5) is provided between the rear end of the drill body (1) and the adjusting screw (2). A scale pointing plate (21) extends outward from the top of the adjusting screw (2). The scale pointing plate (21) moves within the visual window (43) and is placed below the adjusting ring (31) and is matched with the adjusting scale (44).

3. The cutting depth controllable drilling drill bit according to claim 1, characterized in that: The top of the connecting rod (32) is connected to a rotating plate (34), the rotating plate (34) is placed inside the rotating hole (41), the adjusting knob (33) is installed on the top of the rotating plate (34), a rotating groove (35) is provided between the rotating plate (34) and the adjusting knob (33), and the rotating groove (35) cooperates with an extension portion of the rotating hole (41).

4. The cutting depth controllable drilling drill bit according to claim 3, characterized in that: The adjusting knob (33) is placed outside the rotating hole (41), and a plurality of anti-slip bumps (36) are provided outside the adjusting knob (33).

5. The cutting depth controllable drilling drill bit according to claim 1, characterized in that: Support rods (45) are provided on both sides of the top of the adjusting sleeve (4), and the tops of the support rods (45) jointly support the clamping handle (42). The length of the support rods (45) is at least greater than the overall thickness of the adjusting knob (33), and the inner diameter of the support rods (45) on both sides is greater than the outer diameter of the adjusting knob (33).

6. The cutting depth controllable drilling drill bit according to claim 1, characterized in that: The length of the adjustment scale (44) corresponds to the length of the visible window (43), and the length of the visible window (43) should be at least greater than the length of the connecting rod (32).

7. The cutting depth controllable drilling drill bit according to claim 1, characterized in that: The internal depth of the adjusting sleeve (4) should satisfy the overall length of the drill body (1), and the adjusting screw (2) and the drill body (1) are of equal length.

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