Twist drill with chip flutes easy to clean

Abstract

The utility model relates to the technical field of twist drills, and provides a twist drill with a chip flute easy to clean, which comprises a mounting rod, a dismounting structure is fixed at the top end of the mounting rod, and the dismounting structure comprises a mounting seat, a mounting groove, a limiting rod, a fixing bolt, a limiting groove and a limiting block. By arranging the dismounting structure, the limiting rod fixed to the bottom end of the liquid storage device is inserted into the mounting groove, the limiting block can be inserted into the limiting groove along with the limiting rod at the moment, then the fixing bolt penetrates through the mounting base and the mounting groove and is tightened, and the limiting rod and the mounting base can be fixed to each other; the liquid storage device and the drill bit body can be mounted at the top end of the mounting rod through the limiting rod, the limiting block and the mounting seat are mutually clamped through the limiting groove, the limiting rod can be prevented from rotating in the mounting groove, the mounting stability of the limiting rod and the mounting seat is improved, and the device has the function of being convenient to disassemble and assemble; and the convenience of the twist drill in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of twist drills, in particular to a twist drill which is easy to clean a chip groove. Background Art

[0002] As an essential component of mechanical processing, drilling technology has a wide range of applications. From traditional mechanical manufacturing to modern aerospace, automotive manufacturing, petrochemicals, instrumentation, electronics, and medical devices, drilling technology plays an indispensable role. As one of the most commonly used cutting tools in drilling technology, the performance of the twist drill directly affects the drilling process results.

[0003] If an existing twist drill breaks during use, the drill bit needs to be replaced as a whole, which is troublesome. Therefore, it is necessary to design a twist drill that can facilitate the replacement of the drill bit separately. Utility Model Content

[0004] The utility model aims to provide a twist drill with an easy-to-clean chip groove, so as to solve the defect that if the existing twist drill breaks during use, the drill bit needs to be replaced as a whole, which is troublesome.

[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions: a twist drill that is easy to clean a chip groove, comprising a mounting rod;

[0006] The top of the mounting rod is fixed with a disassembly structure, which includes a mounting seat, a mounting slot, a limiting rod, a fixing bolt, a limiting slot and a limiting block. The mounting seat is fixed to the top of the mounting rod, the top of the mounting seat is provided with a mounting slot, the interior of the mounting slot is provided with a limiting rod, the interior of the mounting seat at the bottom of the mounting slot is provided with a limiting slot, the interior of the limiting slot is provided with a limiting block, and the interior of the mounting seat is penetrated by a fixing bolt;

[0007] A cooling structure is fixed to the top end of the limiting rod, and the cooling structure includes a liquid reservoir, a liquid storage cavity, a circulation slot, a liquid storage tank, a liquid adding hole and a sealing plug;

[0008] A drill assembly is fixed on the top of the liquid reservoir. The drill assembly includes a drill body and a chip removal groove. The drill body is fixed on the top of the liquid reservoir. A chip removal groove is provided on the outer side of the drill body.

[0009] Furthermore, the outer diameter of the limiting rod is smaller than the inner diameter of the mounting seat, and the fixing bolt is threadedly connected to the mounting seat.

[0010] Furthermore, the top end of the limit block and the bottom end of the limit rod are fixedly connected, and the top view cross section of the limit block is in a "cross" shape.

[0011] Furthermore, the liquid reservoir is fixed to the top end of the limit rod, a liquid storage cavity is provided inside the liquid reservoir, a liquid adding hole is provided inside the liquid reservoir on one side of the liquid storage cavity, a sealing plug is provided inside the liquid adding hole, the flow groove is provided inside the drill body, and a liquid storage groove is provided inside the drill body at the top end of the flow groove.

[0012] Furthermore, the bottom end of the circulation groove extends to the interior of the liquid storage cavity, and the central axis of the circulation groove is collinear with the central axis of the drill body.

[0013] Furthermore, the liquid adding hole and the liquid reservoir are connected by an interference fit through the liquid adding hole.

[0014] Furthermore, the top of the drill body is designed to be pointed, and the chip removal groove is designed to be spiral.

[0015] The utility model provides a twist drill that is easy to clean the chip groove, which has the following advantages:

[0016] The cam is then screwed down so that the drill bit can be easily removed from the mounting slot and the drill bit can be easily removed.

[0017] By providing a cooling structure, coolant is filled into the liquid storage chamber through the liquid filling hole. When the twist drill is used, the top of the drill body faces downward. At this time, the coolant enters the liquid storage tank through the circulation groove to cool the top of the drill body, thereby preventing the drill body from being damaged by long-term rotation friction during use. The device realizes the function of cooling the top of the drill body and prolongs the service life of the twist drill.

[0018] By providing a chip groove, the chip groove is designed in a spiral shape, and the chip groove adopts a smoother transition curve, which can reduce the retention of debris inside the chip groove, realize the function of facilitating the cleaning of the chip groove, and improve the convenience and work efficiency of the twist drill when used. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the main cross-sectional three-dimensional structure of the utility model;

[0022] Figure 4 It is a side cross-sectional structural schematic diagram of the utility model;

[0023] Figure 5 This is a schematic diagram of a three-dimensional structure of a top view cross section of the present invention;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the utility model in a top view.

[0025] Explanation of the reference numerals in the figure: 1. Mounting rod; 2. Disassembly and assembly structure; 21. Mounting seat; 22. Mounting groove; 23. Limiting rod; 24. Fixing bolt; 25. Limiting groove; 26. Limiting block; 3. Cooling structure; 31. Liquid reservoir; 32. Liquid storage chamber; 33. Circulation groove; 34. Liquid storage tank; 35. Liquid adding hole; 36. Sealing plug; 4. Drill bit assembly; 41. Drill bit body; 42. Chip removal groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-6 The utility model provides a twist drill with an easy-to-clean chip groove, which includes a mounting rod 1.

[0028] Reference Figure 1-Figure 5 The top of the mounting rod 1 is fixed with a disassembly structure 2, and the disassembly structure 2 includes a mounting seat 21, a mounting groove 22, a limiting rod 23, a fixing bolt 24, a limiting groove 25 and a limiting block 26. The mounting seat 21 is fixed to the top of the mounting rod 1, and a mounting groove 22 is provided on the top of the mounting seat 21. A limiting rod 23 is arranged inside the mounting groove 22. A limiting groove 25 is provided inside the mounting seat 21 at the bottom end of the mounting groove 22, and a limiting block 26 is arranged inside the limiting groove 25. The interior of the mounting seat 21 is penetrated by a fixing bolt 24, and the outer diameter of the limiting rod 23 is smaller than the inner diameter of the mounting seat 21. The fixing bolt 24 is threadedly connected to the mounting seat 21, and the top end of the limiting block 26 is fixedly connected to the bottom end of the limiting rod 23. The top cross-section of the limiting block 26 is designed in a "cross" shape.

[0029] Insert the limiting rod 23 fixed at the bottom end of the liquid reservoir 31 into the interior of the mounting groove 22. At this time, the limiting block 26 will follow the limiting rod 23 and be inserted into the interior of the limiting groove 25 at the same time. Then, pass the fixing bolt 24 through the mounting seat 21 and the mounting groove 22 and tighten it. The limiting rod 23 and the mounting seat 21 can be fixed to each other. The liquid reservoir 31 and the drill body 41 can be installed on the top end of the mounting rod 1 through the limiting rod 23. The limiting block 26 and the mounting seat 21 are engaged with each other through the limiting groove 25, which can prevent the limiting rod 23 from rotating inside the mounting groove 22, thereby improving the installation stability of the limiting rod 23 and the mounting seat 21.

[0030] Reference Figure 1-Figure 4 and Figure 6 The top of the limiting rod 23 is fixed with a cooling structure 3, which includes a liquid reservoir 31, a liquid storage cavity 32, a circulation groove 33, a liquid storage groove 34, a liquid adding hole 35 and a sealing plug 36. The liquid reservoir 31 is fixed to the top of the limiting rod 23. The liquid reservoir 31 is provided with a liquid storage cavity 32. The liquid storage cavity 32 is provided with a liquid adding hole 35 on one side of the liquid storage cavity 32. The liquid adding hole 35 is provided with a sealing plug 36. The circulation groove 33 is provided in the interior of the drill body 41. The top of the circulation groove 33 is provided with a storage tank inside the drill body 41. The liquid tank 34 and the bottom end of the circulation groove 33 extend to the interior of the liquid storage chamber 32. The central axis of the circulation groove 33 and the central axis of the drill body 41 are collinear. The liquid adding hole 35 and the liquid reservoir 31 are connected by interference fit through the liquid adding hole 35. The drill assembly 4 is fixed to the top of the liquid reservoir 31. The drill assembly 4 includes a drill body 41 and a chip groove 42. The drill body 41 is fixed to the top of the liquid reservoir 31. The chip groove 42 is opened on the outside of the drill body 41. The top of the drill body 41 is designed with a pointed angle, and the chip groove 42 is designed in a spiral shape.

[0031] The coolant is filled into the liquid storage chamber 32 through the liquid filling hole 35. When the twist drill is used, the top of the drill body 41 faces downward. At this time, the coolant will enter the liquid storage tank 34 through the circulation groove 33 to cool the top of the drill body 41, thereby preventing the drill body 41 from being damaged by long-term rotation friction during use.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A twist drill with an easy-to-clean chip groove, comprising a mounting rod (1); Its characteristics are: The top of the mounting rod (1) is fixed with a disassembly structure (2), and the disassembly structure (2) includes a mounting seat (21), a mounting groove (22), a limiting rod (23), a fixing bolt (24), a limiting groove (25) and a limiting block (26). The mounting seat (21) is fixed to the top of the mounting rod (1), the top of the mounting seat (21) is provided with a mounting groove (22), the interior of the mounting groove (22) is provided with a limiting rod (23), the interior of the mounting seat (21) at the bottom end of the mounting groove (22) is provided with a limiting groove (25), the interior of the limiting groove (25) is provided with a limiting block (26), and the interior of the mounting seat (21) is penetrated by a fixing bolt (24); A cooling structure (3) is fixed to the top end of the limiting rod (23), and the cooling structure (3) includes a liquid reservoir (31), a liquid storage cavity (32), a circulation groove (33), a liquid storage tank (34), a liquid adding hole (35) and a sealing plug (36); A drill assembly (4) is fixed to the top of the liquid reservoir (31), and the drill assembly (4) comprises a drill body (41) and a chip removal groove (42). The drill body (41) is fixed to the top of the liquid reservoir (31), and a chip removal groove (42) is provided on the outside of the drill body (41).

2. A twist drill for easily cleaning chip grooves according to claim 1, characterized in that: The outer diameter of the limiting rod (23) is smaller than the inner diameter of the mounting seat (21), and the fixing bolt (24) and the mounting seat (21) are threadedly connected.

3. The twist drill for easily cleaning the chip groove according to claim 1, characterized in that: The top end of the limiting block (26) is fixedly connected to the bottom end of the limiting rod (23), and the top view cross section of the limiting block (26) is in a "cross" shape.

4. The twist drill for easily cleaning the chip groove according to claim 1, characterized in that: The liquid reservoir (31) is fixed to the top end of the limiting rod (23), a liquid storage cavity (32) is provided inside the liquid reservoir (31), a liquid adding hole (35) is provided inside the liquid reservoir (31) on one side of the liquid storage cavity (32), a sealing plug (36) is provided inside the liquid adding hole (35), the circulation groove (33) is provided inside the drill body (41), and a liquid storage groove (34) is provided inside the drill body (41) at the top end of the circulation groove (33).

5. The twist drill for easily cleaning the chip groove according to claim 4, characterized in that: The bottom end of the circulation groove (33) extends to the interior of the liquid storage cavity (32), and the central axis of the circulation groove (33) and the central axis of the drill body (41) are collinear.

6. The twist drill for easily cleaning the chip groove according to claim 4, characterized in that: The liquid adding hole (35) and the liquid reservoir (31) are connected by interference fit via the liquid adding hole (35).

7. The twist drill for easily cleaning the chip groove according to claim 1, characterized in that: The top of the drill body (41) is designed to be pointed, and the chip removal groove (42) is designed to be spiral.

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