A drill bit with layered cutting function

Abstract

This utility model discloses a drill bit with layered cutting function, including a base, a sliding seat, a support seat, a docking seat, a drill bit, and a layered cutting linkage mechanism. A guide protrusion is fixed on the base, the sliding seat is slidably engaged with the guide protrusion, and is slidably connected to the base in the X-axis direction. The support seat is slidably connected to the sliding seat in the Y-axis direction, with the sliding seat located above the base and the support seat located above the sliding seat. In this utility model, by setting up a layered cutting linkage mechanism, when the drill bit contacts a high-speed rotating workpiece and performs milling, the drill bit can feed within the workpiece through the sliding of the sliding seat. Simultaneously, the slider slides on the guide rod, and the guide rod's limiting action pulls the support seat to slide on the sliding seat, thus enabling the drill bit to simultaneously achieve layered cutting on the workpiece. This method is simple, efficient, and significantly improves work efficiency.

Description

Technical Field

[0001] This utility model relates to a drill bit, specifically a drill bit with layered cutting function, belonging to the field of drill bit technology. Background Technology

[0002] Drill bits generally refer to twist drills, which are the most commonly used hole-making tools. The straight main cutting edge of this type of drill bit is relatively long, and the two main cutting edges are connected by the chisel edge. The chip flute is helical (to facilitate chip removal). Part of the helical flute forms the rake face. The rake face and the point angle determine the size of the rake angle. Therefore, the rake angle of the drill tip is not only closely related to the helix angle, but also affected by the inclination angle.

[0003] Although there are many types of drill bits available, they still have certain problems. For example, in the multi-layer stepped twist drill disclosed in publication number CN115740577A, although it not only reduces drill bit wear and extends its lifespan compared to existing step drills, but also increases cutting speed, the drill bit often needs to be supported by an external support structure when drilling the workpiece. However, the external support structure can only support the drill bit to cut a fixed point. If it is necessary to cut the workpiece in layers at the same time, the position of the support structure and the drill bit needs to be adjusted multiple times, which is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the purpose of this utility model is to overcome the aforementioned shortcomings in existing technologies by proposing a drill bit with layered cutting capabilities.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a drill bit with layered cutting function, comprising a base, a sliding seat, a support seat, a docking seat, a drill bit, and a layered cutting linkage mechanism. A guide protrusion is fixed on the base, the sliding seat is slidably engaged with the guide protrusion, the sliding seat is slidably connected to the base in the X-axis direction, the support seat is slidably connected to the sliding seat in the Y-axis direction, and the sliding seat is located above the base, the support seat is located above the sliding seat, the docking seat is fixed at the top center of the support seat, and the drill bit is connected to the docking seat.

[0006] The layered cutting linkage mechanism is set between the base and the support seat, and the layered cutting linkage mechanism includes an adjusting plate, a guide rod and a slider. The adjusting plate is fixed on one side of the support seat, and two horizontal plates are fixed on the base near the adjusting plate. One end of the guide rod is rotatably connected to one of the horizontal plates, and the other end is connected to the other horizontal plate. The slider is slidably sleeved on the guide rod and is connected to the bottom of the adjusting plate.

[0007] Preferably, the layered cutting linkage mechanism further includes a locking block and a locking groove. The locking block is fixed on the sliding seat, the locking groove is set at the bottom of the support seat, and the locking block is slidably engaged in the locking groove. Both the locking block and the locking groove have trapezoidal cross sections.

[0008] Preferably, an adjusting nut is provided on the slider, a rectangular through groove is provided through the adjusting plate, a screw is fixed on the slider, the screw passes through the rectangular through groove and is slidably connected to the adjusting plate, and the adjusting nut is screwed onto the adjusting plate.

[0009] Preferably, the layered cutting linkage mechanism further includes an adjustment slot, which is set on a horizontal plate on the base away from the rotating end of the guide rod, and the adjustment slot has an arc-shaped structure. One end of the guide rod is slidably engaged in the adjustment slot and locked by screws.

[0010] Preferably, scale lines are provided at the edge of the adjustment groove.

[0011] Preferably, a lead screw is rotatably connected to the top center of the base, and a threaded hole is provided through the center of the sliding seat, with the lead screw threaded into the threaded hole.

[0012] The beneficial effects of this utility model are as follows: By setting up a layered cutting linkage mechanism, when the drill bit comes into contact with a high-speed rotating workpiece and performs milling on the workpiece, the drill bit can feed into the workpiece through the sliding of the sliding seat. At the same time as feeding, the slider slides on the guide rod, and the guide rod pulls the support seat to slide on the sliding seat through the limiting action of the guide rod. Thus, the drill bit can simultaneously achieve layered cutting on the workpiece, which is simple and efficient and greatly improves work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the guide rod and its overall connection structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the base connection structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the layered cutting linkage mechanism of this utility model.

[0017] In the diagram: 1. Base, 2. Sliding seat, 3. Support seat, 4. Connecting seat, 5. Drill bit, 6. Layered cutting linkage mechanism, 61. Locking block, 62. Locking groove, 63. Adjusting plate, 64. Guide rod, 65. Slider, 66. Adjusting nut, 67. Adjusting slot, 68. Scale line, 7. Guide protrusion, 8. Lead screw. Detailed Implementation

[0018] 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.

[0019] Example 1, as Figures 1 to 4 As shown, a drill bit with layered cutting function includes a base 1, a sliding seat 2, a support seat 3, a docking seat 4, a drill bit 5, and a layered cutting linkage mechanism 6. A guide protrusion 7 is fixed on the base 1. The sliding seat 2 is slidably engaged with the guide protrusion 7. The sliding seat 2 is slidably connected to the base 1 in the X-axis direction. The support seat 3 is slidably connected to the sliding seat 2 in the Y-axis direction. The sliding seat 2 is located above the base 1, and the support seat 3 is located above the sliding seat 2. The docking seat 4 is fixed at the top center of the support seat 3, and the drill bit 5 is connected to the docking seat 4.

[0020] The layered cutting linkage mechanism 6 is set between the base 1 and the support 3, and the layered cutting linkage mechanism 6 includes an adjusting plate 63, a guide rod 64 and a slider 65. The adjusting plate 63 is fixed on one side of the support 3, and two horizontal plates are fixed on the base 1 near the adjusting plate 63. One end of the guide rod 64 is rotatably connected to one of the horizontal plates, and the other end is connected to the other horizontal plate. The slider 65 is slidably sleeved on the guide rod 64, and the slider 65 is connected to the bottom of the adjusting plate 63.

[0021] The layered cutting linkage mechanism 6 also includes a locking block 61 and a locking groove 62. The locking block 61 is fixed on the sliding seat 2, and the locking groove 62 is set at the bottom of the support seat 3. The locking block 61 is slidably engaged in the locking groove 62, and both the locking block 61 and the locking groove 62 have trapezoidal cross sections.

[0022] In this utility model, by setting up a layered cutting linkage mechanism 6, when the drill bit 5 comes into contact with the high-speed rotating workpiece and performs milling on the workpiece, the drill bit 5 can feed into the workpiece through the sliding seat 2. At the same time as feeding, the slider 65 slides on the guide rod 64, and the guide rod 64 pulls the support seat 3 to slide on the sliding seat 2 through the limiting action of the guide rod 64. Thus, the drill bit 5 can simultaneously achieve layered cutting on the workpiece, which is simple and efficient and greatly improves work efficiency.

[0023] Example 2, as Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0024] An adjusting nut 66 is provided on the slider 65, and a rectangular through slot is provided on the adjusting plate 63. A screw is fixed on the slider 65, and the screw passes through the rectangular through slot and is slidably connected to the adjusting plate 63. The adjusting nut 66 is screwed onto the adjusting plate 63. The distance between the support 3 and the guide rod 64 is adjusted by adjusting the adjusting nut 66, thereby realizing the adjustment of the initial cutting position of the drill bit 5.

[0025] The layered cutting linkage mechanism 6 also includes an adjustment slot 67. The adjustment slot 67 is set on the horizontal plate on the base 1 away from the rotating end of the guide rod 64, and the adjustment slot 67 has an arc-shaped structure. One end of the guide rod 64 is slidably engaged in the adjustment slot 67 and locked by screws. By setting the adjustment slot 67, the tilt angle of the guide rod 64 can be adjusted, thereby realizing the adjustment of the displacement of the support seat 3.

[0026] The edge of the adjusting slot 67 is provided with a scale line 68, which allows the user to accurately adjust the tilt angle of the guide rod 64.

[0027] A lead screw 8 is rotatably connected to the top center of the base 1, and a threaded hole is provided through the center of the sliding seat 2. The lead screw 8 is threaded into the threaded hole. The rotation of the lead screw 8 causes the sliding seat 2 to be threaded and linked, thereby enabling the sliding seat 2 to slide directionally on the base 1.

[0028] When using this drill bit, first connect and lock the drill bit to the mating seat 4, then rotate the adjusting nut 66 to adjust the distance between the support seat 3 and the guide rod 64, thereby adjusting the initial cutting position of the drill bit 5. After adjusting the tilt angle of the guide rod 64, rotate the lead screw 8 to make the sliding seat 2 threadedly linked. At this time, the sliding seat 2 slides on the base 1 along the X-axis direction, and drives the drill bit 5 to abut against the high-speed rotating workpiece. When milling the workpiece, the slider 65 slides on the guide rod 64, and pulls the support seat 3 to slide on the sliding seat 2 through the adjusting plate 63, thereby driving the drill bit 5 to move along the Y-axis direction, thus achieving the layered cutting effect on the workpiece.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drill bit with layered cutting function, comprising a base (1), a sliding seat (2), a support seat (3), a docking seat (4), a drill bit (5), and a layered cutting linkage mechanism (6), characterized in that, The base (1) is fixed with a guide protrusion (7), the sliding seat (2) is slidably engaged with the guide protrusion (7) and slidably connected with the base (1) in the X-axis direction, the support seat (3) is slidably connected with the sliding seat (2) in the Y-axis direction, and the sliding seat (2) is located above the base (1), the support seat (3) is located above the sliding seat (2), the docking seat (4) is fixed at the top center of the support seat (3), and the drill bit (5) is connected to the docking seat (4); The layered cutting linkage mechanism (6) is set between the base (1) and the support (3), and the layered cutting linkage mechanism (6) includes an adjusting plate (63), a guide rod (64) and a slider (65). The adjusting plate (63) is fixed on one side of the support (3), and two horizontal plates are fixed on the base (1) near the adjusting plate (63). One end of the guide rod (64) is rotatably connected to one of the horizontal plates, and the other end is connected to the other horizontal plate. The slider (65) is slidably sleeved on the guide rod (64), and the slider (65) is connected to the bottom of the adjusting plate (63).

2. The drill bit according to claim 1, characterized in that: The layered cutting linkage mechanism (6) further includes a locking block (61) and a locking groove (62). The locking block (61) is fixed on the sliding seat (2), and the locking groove (62) is set at the bottom of the support seat (3). The locking block (61) is slidably locked in the locking groove (62), and the cross sections of the locking block (61) and the locking groove (62) are both trapezoidal.

3. The drill bit according to claim 1, characterized in that: An adjusting nut (66) is provided on the slider (65), a rectangular through groove is provided on the adjusting plate (63), a screw is fixed on the slider (65), and the screw passes through the rectangular through groove and is slidably connected to the adjusting plate (63). The adjusting nut (66) is screwed onto the adjusting plate (63).

4. The drill bit according to claim 1, characterized in that: The layered cutting linkage mechanism (6) also includes an adjustment slot (67), which is set on a horizontal plate on the base (1) away from the rotating end of the guide rod (64). The adjustment slot (67) has an arc-shaped structure. One end of the guide rod (64) is slidably engaged in the adjustment slot (67) and locked by screws.

5. The drill bit according to claim 4, characterized in that: The adjustment slot (67) is provided with scale lines (68) at its edge.

6. The drill bit according to claim 1, characterized in that: A lead screw (8) is rotatably connected to the top center of the base (1), and a threaded hole is provided through the center of the sliding seat (2), with the lead screw (8) threaded into the threaded hole.

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