Self-lubricating diamond bit

Abstract

The utility model discloses a self-lubricating diamond drill bit, which particularly relates to the field of diamond drill bits and comprises a plane drill bit, the peripheral edge of the plane drill bit is arc-shaped, a center hole is formed in the vertical center of the bottom end of the plane drill bit, and the top end of the plane drill bit is fixedly connected with a drill bit inner cavity. The surface of the drill bit inner cavity is in sliding connection with an oil quantity observation cavity, and the technical key points are as follows: by rotating the plane drill bit, the rotating bearing is promoted to carry out first process cleaning on the surface of the bottom end of the plane drill bit, and ceramic powder is swept away; lubricating oil flows through the through hole, reaches the inner cavity of the plane drill bit and flows to the surface of the bottom end of the plane drill bit, and when the diamond drill bit rotates, the lubricating oil located on the surface of the bottom end of the plane drill bit extends outwards from the center of the bottom end of the plane drill bit under the action of centrifugal force and then is thrown out, and meanwhile the adhered ceramic powder is taken away.

Description

Technical Field

[0001] This utility model relates to the field of diamond drill bit technology, and more specifically, to a self-lubricating diamond drill bit. Background Technology

[0002] Diamond, commonly known as "diamond," is a mineral composed of carbon. It is an allotrope of carbon and a particle of matter composed of a single element in nature. It is the hardest naturally occurring substance found on Earth. Diamonds have also been found in meteorites. Diamonds have a wide range of uses, such as in handicrafts and industrial cutting tools. Graphite can be used to form synthetic diamonds under high temperature and pressure.

[0003] While the diamond drill bit is electroplated with abrasive, it also has porous ceramic powder with polishing wax adsorbed on it. This ceramic powder will affect the effect of the next abrasive application. In addition, the design of the drill bit is generally to make it a flat drill bit for the convenience of abrasive, which cannot be used for drilling or other functions, and its function is relatively simple. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a self-lubricating diamond drill bit. By rotating the planar drill bit, the rotating bearing performs a first-stage cleaning process on the bottom surface of the planar drill bit, removing powdery ceramic powder. In addition, lubricating oil is poured into the chamber of the oil level observation cavity. The lubricating oil flows through the through hole to the inner cavity of the planar drill bit and into the bottom surface of the planar drill bit. When the diamond drill bit rotates, the lubricating oil located on the bottom surface of the planar drill bit extends outward from the bottom center of the planar drill bit due to centrifugal force and is then thrown out, carrying away the adhered ceramic powder at the same time, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating diamond drill bit, comprising a flat drill bit, wherein the outer edge of the flat drill bit is arc-shaped, a central hole is provided at the vertical center of the bottom end of the flat drill bit, a drill bit inner cavity is fixedly connected to the top end of the flat drill bit, an oil level observation cavity is slidably connected to the surface of the drill bit inner cavity, a tight threaded keyway is provided inside the top end of the drill bit inner cavity, and an oil inlet hole is vertically penetrating the top end of the oil level observation cavity;

[0006] The top of the planar drill bit has an L-shaped groove and a through hole. The through hole is located on one side of the inside of the L-shaped groove. A connecting pipe is slidably installed on the other side of the inside of the L-shaped groove. The top of the connecting pipe is connected to the bottom of the oil level observation chamber.

[0007] In a preferred embodiment, a connecting rod is slidably connected to the surface of the connecting pipe, a U-shaped insert plate is inserted inside the connecting rod, a rotating bearing is inserted at the bottom end of the U-shaped insert plate, and multiple sets of long brushes are fixedly connected to the surface of the rotating bearing.

[0008] In a preferred embodiment, a set of rigid ropes is fixedly connected to the periphery of the oil inlet hole in the oil level observation chamber, one end of the rigid ropes is fixedly connected to a plug, and an arc-shaped base is fixedly connected to the surface of the oil level observation chamber.

[0009] In a preferred embodiment, a circular slide plate is slidably installed inside the drill bit cavity, and an embedded drill bit is fixedly connected to the top of the circular slide plate. The embedded drill bit is vertically aligned with the central hole.

[0010] In a preferred embodiment, an arc-shaped telescopic plate is fixedly connected to the top of the circular slide plate. The outer wall of the top of the arc-shaped telescopic plate is fixedly connected to the inner cavity of the drill bit. Two sets of buckle grooves are provided on the inner wall of the arc-shaped telescopic plate, and buckles are engaged inside the buckle grooves.

[0011] In a preferred embodiment, a pull rod is installed through the top of the drill bit's inner cavity, one end of the pull rod is fixedly connected to an upper pull ring, the bottom end of the upper pull ring is inserted with a telescopic rod, and the bottom end of the telescopic rod is fixedly connected to a lower pull ring.

[0012] In a preferred embodiment, the upper and lower pull rings correspond to the positions of two sets of snap-fit ​​slots, and a set of telescopic connecting crossbars is fixedly connected to the bottom side wall of the arc-shaped telescopic plate. The other end of the telescopic connecting crossbars is fixedly connected to the surface of the lower pull ring.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model uses a rotating planar drill bit to cause the rotating bearing to perform the first cleaning process on the bottom surface of the planar drill bit, removing powdery ceramic powder. In addition, lubricating oil is poured into the chamber of the oil level observation chamber. The lubricating oil flows through the through hole to the inner cavity of the planar drill bit and into the bottom surface of the planar drill bit. When the diamond drill bit rotates, the lubricating oil on the bottom surface of the planar drill bit extends outward from the bottom center of the planar drill bit due to centrifugal force and is then thrown out, while carrying away the adhering ceramic powder.

[0015] 2. This utility model achieves two different ways of using the drill bit by changing the position of the buckle inside the two sets of buckle slots, with the central hole retracting inside the drill bit's inner cavity for flat drill bit work and flat grinding work, or the central hole extending out of the drill bit's inner cavity for drilling.

[0016] 3. This utility model determines the lubrication status of the flat drill bit by observing the remaining oil in the cavity or the drop in the oil tank, thereby determining the smoothness of the diamond grinding surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the diamond drill bit of this utility model.

[0018] Figure 2 This utility model Figure 1 Enlarged view of the structure of part A.

[0019] Figure 3 This is a front sectional view of the diamond drill bit of this utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged view of the structure of part B.

[0021] Figure 5 This utility model Figure 3 Enlarged view of the C-section structure.

[0022] The attached diagram is labeled as follows: 1. Flat drill bit; 2. Oil level observation chamber; 3. Arc-shaped base; 4. Oil inlet hole; 5. Connecting rod; 6. U-shaped insert plate; 7. Rotary bearing; 8. Pull rod; 9. Arc-shaped telescopic plate; 10. Buckle; 11. Buckle groove; 12. Upper pull ring; 13. Telescopic rod; 14. Drill bit inner cavity; 15. Telescopic connecting crossbar; 16. Circular sliding plate; 17. Lower pull ring; 18. Center hole; 19. Embedded drill bit; 20. Connecting pipe; 21. L-shaped groove; 22. Through hole; 23. Hole plug. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1: As Figure 1 As shown, a self-lubricating diamond drill bit includes a flat drill bit 1. The outer edge of the flat drill bit 1 is arc-shaped. A central hole 18 is opened at the vertical center of the bottom end of the flat drill bit 1. The top end of the flat drill bit 1 is fixedly connected to a drill bit cavity 14. An oil level observation cavity 2 is slidably connected to the surface of the drill bit cavity 14. A tight threaded keyway is opened inside the top end of the drill bit cavity 14. An oil inlet hole 4 is vertically penetrating the top end of the oil level observation cavity 2.

[0025] Specifically, the lubrication status of the flat drill bit is judged by observing the remaining oil in the chamber or the drop in the oil tank, thereby determining the smoothness of the surface being polished by the diamond.

[0026] like Figure 5 As shown, the top of the flat drill bit 1 is provided with an L-shaped groove 21 and a through hole 22. The through hole 22 is located on one side inside the L-shaped groove 21. A connecting pipe 20 is slidably installed on the other side inside the L-shaped groove 21. The top of the connecting pipe 20 is connected to the bottom of the oil level observation chamber 2.

[0027] like Figure 5 As shown, a connecting rod 5 is slidably connected to the surface of the connecting pipe 20, a U-shaped insert plate 6 is inserted inside the connecting rod 5, a rotating bearing 7 is inserted at the bottom end of the U-shaped insert plate 6, and multiple sets of long brushes are fixedly connected to the surface of the rotating bearing 7.

[0028] Specifically, the rotating bearing 7 is brought into contact with the bottom end of the flat drill bit 1 by the long brush. Rotating the flat drill bit 1 causes the rotating bearing 7 to clean the bottom surface of the drill bit 1, removing powdery ceramic powder. Diamond drill bits are typically threaded to the bottom end of a high-speed rotating screw, which drives the diamond drill bit to rotate and grind. However, during ceramic grinding, a large amount of ceramic powder is often absorbed by the electroplating, affecting the grinding effect of subsequent passes. This design involves filling the chamber of the oil level observation cavity 2 with lubricating oil. The connecting pipe 20 seeps into the groove of the L-shaped groove 21. The lubricating oil flows through the through hole 22 to the inner cavity of the flat drill bit 1. It slowly flows into the bottom surface of the flat drill bit 1 through the center hole 18. When the centrifugal force generated by the diamond drill bit during rotation causes the lubricating oil to flow through the through hole 22 to the inner cavity of the flat drill bit 1, it will no longer seep down. The lubricating oil located on the bottom surface of the flat drill bit 1 is extended outward from the bottom center of the flat drill bit 1 due to the centrifugal force and is then thrown out, while taking away the ceramic powder that is adhered to it.

[0029] Example 2: Figure 1 As shown, a set of rigid ropes is fixedly connected to the oil level observation chamber 2 around the oil inlet hole 4. One end of the rigid ropes is fixedly connected to a hole plug 23. An arc-shaped base 3 is fixedly connected to the surface of the oil level observation chamber 2. The arc-shaped base 3 is used to mount the rotating bearing 7.

[0030] Specifically, when the rotating bearing 7 is not in use, the U-shaped insert plate 6 is removed, the U-shaped insert plate 6 is rotated and the rotating bearing 7 is inserted again, and the rotating bearing 7 is mounted on the top of the arc-shaped base 3.

[0031] like Figure 3 As shown, a circular slide plate 16 is slidably installed inside the drill bit cavity 14, and an embedded drill bit 19 is fixedly connected to the top of the circular slide plate 16. The embedded drill bit 19 is vertically aligned with the central hole 18.

[0032] like Figure 2 As shown, an arc-shaped telescopic plate 9 is fixedly connected to the top of the circular slide plate 16. The outer wall of the top of the arc-shaped telescopic plate 9 is fixedly connected to the inner cavity 14 of the drill bit. Two sets of buckle grooves 11 are opened on the inner wall of the arc-shaped telescopic plate 9, and buckles 10 are engaged inside the buckle grooves 11.

[0033] like Figure 2 As shown, a pull rod 8 is installed through the top of the drill bit cavity 14. One end of the pull rod 8 is fixedly connected to an upper pull ring 12. A telescopic rod 13 is inserted into the bottom end of the upper pull ring 12. A lower pull ring 17 is fixedly connected to the bottom end of the telescopic rod 13.

[0034] like Figure 4 As shown, the upper pull ring 12 and the lower pull ring 17 correspond to the positions of the two sets of buckle slots 11. A set of telescopic connecting crossbars 15 are fixedly connected to the bottom side wall of the arc-shaped telescopic plate 9. The other end of the telescopic connecting crossbars 15 is fixedly connected to the surface of the lower pull ring 17.

[0035] Specifically, both the upper pull ring 12 and the lower pull ring 17 are telescopic shafts. By stretching the pull rod 8, the surfaces of the upper pull ring 12 and the lower pull ring 17 abut against the inner wall of the arc-shaped telescopic plate 9. When the buckle 10 is inside the two sets of buckle grooves 11, it is positioned. When the buckle 10 is inside the upper buckle groove 11, its central hole 18 retracts into the drill bit cavity 14 for the plane drill bit 1 to work and perform plane grinding. When the buckle 10 is inside the upper buckle groove 11, the central hole 18 extends out of the drill bit cavity 14 for the drill bit to drill. The position movement of the buckle 10 can be described as an automatic umbrella handle structure, which is existing technology.

[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-lubricating diamond drill bit, comprising a flat drill bit (1), characterized in that: The outer edge of the planar drill bit (1) is arc-shaped. A central hole (18) is opened at the vertical center of the bottom end of the planar drill bit (1). The top end of the planar drill bit (1) is fixedly connected to the drill bit cavity (14). An oil level observation cavity (2) is slidably connected to the surface of the drill bit cavity (14). A tight threaded keyway is opened inside the top end of the drill bit cavity (14). An oil inlet hole (4) is vertically penetrating the top end of the oil level observation cavity (2). The top of the flat drill bit (1) is provided with an L-shaped groove (21) and a through hole (22). The through hole (22) is located on one side inside the L-shaped groove (21). A connecting pipe (20) is slidably installed on the other side inside the L-shaped groove (21). The top of the connecting pipe (20) is connected to the bottom of the oil level observation chamber (2).

2. The self-lubricating diamond drill bit according to claim 1, characterized in that: The surface of the connecting pipe (20) is slidably connected to a connecting rod (5), and a U-shaped insert plate (6) is inserted inside the connecting rod (5). A rotating bearing (7) is inserted at the bottom end of the U-shaped insert plate (6), and multiple sets of long brushes are fixedly connected to the surface of the rotating bearing (7).

3. The self-lubricating diamond drill bit according to claim 1, characterized in that: The oil level observation chamber (2) is located around the oil inlet (4) and is fixedly connected to a set of rigid ropes. One end of the rigid ropes is fixedly connected to a plug (23), and an arc-shaped base (3) is fixedly connected to the surface of the oil level observation chamber (2).

4. A self-lubricating diamond drill bit according to claim 1, characterized in that: A circular slide plate (16) is slidably installed inside the inner cavity (14) of the drill bit. An embedded drill bit (19) is fixedly connected to the top of the circular slide plate (16). The embedded drill bit (19) is vertically aligned with the central hole (18).

5. A self-lubricating diamond drill bit according to claim 4, characterized in that: The top of the circular slide plate (16) is fixedly connected to an arc-shaped telescopic plate (9). The outer wall of the top of the arc-shaped telescopic plate (9) is fixedly connected to the inner cavity (14) of the drill bit. The inner wall of the arc-shaped telescopic plate (9) is provided with two sets of buckle grooves (11), and buckles (10) are engaged inside the buckle grooves (11).

6. A self-lubricating diamond drill bit according to claim 5, characterized in that: A pull rod (8) is installed through the top of the drill bit cavity (14). One end of the pull rod (8) is fixedly connected to an upper pull ring (12). A telescopic rod (13) is inserted into the bottom end of the upper pull ring (12). A lower pull ring (17) is fixedly connected to the bottom end of the telescopic rod (13).

7. A self-lubricating diamond drill bit according to claim 6, characterized in that: The upper pull ring (12) and lower pull ring (17) correspond to the positions of the two sets of buckle grooves (11). A set of telescopic connecting crossbars (15) is fixedly connected to the bottom side wall of the arc-shaped telescopic plate (9). The other end of the telescopic connecting crossbars (15) is fixedly connected to the surface of the lower pull ring (17).

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