Efficient U-shaped drill bit for numerical control lathe

Abstract

The utility model discloses an efficient U-shaped drill bit for a numerically controlled lathe, which relates to the technical field of drill bits and comprises a drill bit assembly, a tool bit assembly and an efficient tool bit disassembly and assembly mechanism, and the drill bit assembly is used for installing and fixing the tool bit assembly and the efficient tool bit disassembly and assembly mechanism; the number of the tool bit assemblies is two, the two tool bit assemblies are evenly distributed on the outer side of the drill bit assembly and detachably connected with the drill bit assembly, and the tool bit assemblies are used for rough machining and finish machining of a hole channel; the efficient tool bit dismounting and mounting mechanism comprises a movable pressing plate, a second connecting screw hole, a tool bit bolt and a limiting column; the movable pressing plates are rotationally arranged on the inner sides of the adjacent chip grooves through pin shafts. According to the utility model, the two tool bit bolts for fixing the tool bits can be fixed and stored, so that the tool bits are prevented from being lost, and meanwhile, alignment and resetting can be more conveniently carried out subsequently, so that the efficient replacement of the first tool bit and the second tool bit is realized.

Description

Technical Field

[0001] This utility model relates to the field of drill bit technology, and in particular to a high-efficiency U-shaped drill bit for CNC lathes. Background Technology

[0002] U-shaped drill bits are U-shaped with two tips. They can remove material and create holes during drilling. They are made of strong metal materials and are typically used to drill hard materials such as metal, stone and concrete. They have good hardness and wear resistance.

[0003] A search revealed that utility model patent CN221161032U discloses a novel U-shaped drill bit, comprising a U-shaped drill bit body, on which a first cutting head and a second cutting head are disposed; the first cutting head is connected to the U-shaped drill bit body by screws, and the second cutting head is also connected to the U-shaped drill bit body by screws; the U-shaped drill bit body is provided with a mounting portion, and the second cutting head is closer to the mounting portion than the first cutting head; the second cutting head rotates about the axis of the U-shaped drill bit body, and the rotation radius of the second cutting head is greater than the rotation radius of the first cutting head.

[0004] The aforementioned U-shaped drill bit can simultaneously complete roughing and finishing operations of the hole. However, as the usage time increases, when the first and second cutting heads need to be replaced due to wear, the operator first needs to remove the two cutting head bolts that fix the first and second cutting heads to release their fixation. Then, a new first and second cutting head are replaced and the two cutting head bolts are reset. During this process, because the cutting head bolts are small, it is difficult to store them after removal, which can easily lead to loss. At the same time, it is also inconvenient to reset and align them later, which has a significant impact on the efficiency of cutting head replacement.

[0005] Therefore, it is necessary to invent a high-efficiency U-shaped drill bit for CNC lathes to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a high-efficiency U-shaped drill bit for CNC lathes. It can securely store the two drill head bolts used to fix the drill head, preventing loss and facilitating subsequent alignment and repositioning. This enables efficient replacement of the first and second drill heads, addressing the problem in the background art where, when the first and second drill heads need replacement due to wear, the operator must first remove the two drill head bolts to release them, then replace them with new ones and reposition the bolts. This process is difficult due to the small size of the bolts, making storage challenging and prone to loss. Furthermore, subsequent alignment and repositioning are inconvenient, significantly impacting the efficiency of drill head replacement.

[0007] According to one aspect of this disclosure, the following technical solution is provided: a high-efficiency U-shaped drill bit for CNC lathes, comprising:

[0008] A drill bit assembly, which is used to install and fix the cutter head assembly and the high-efficiency cutter head assembly and disassembly mechanism;

[0009] A cutting head assembly for roughing and finishing holes; and

[0010] A high-efficiency blade assembly / disassembly mechanism, comprising a movable pressure plate, a second connecting screw hole, a blade bolt, and a limiting post;

[0011] The movable pressure plate is rotatably mounted on the inner side of the adjacent chip removal groove via a pin shaft. There are two second connecting screw holes and two cutter head bolts. The two second connecting screw holes are respectively installed through both ends of the movable pressure plate. The two cutter head bolts are respectively threaded to the inner side of the two second connecting screw holes. The limiting post is fixedly connected to the inner wall of the adjacent chip removal groove and is located on one side of the movable pressure plate.

[0012] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe includes two sets of cutter head assemblies, which are evenly distributed on the outside of the drill bit assembly and detachably connected to the drill bit assembly.

[0013] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe includes a mounting portion and a drill bit body, wherein the drill bit body is fixedly disposed at the left end of the mounting portion.

[0014] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe includes a drill bit assembly further comprising two chip removal grooves, the two chip removal grooves being evenly distributed on the outer side of the drill bit body.

[0015] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe includes a first positioning groove and a second positioning groove, both of which are formed inside adjacent chip removal grooves.

[0016] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe has a first connecting screw hole provided through the inner sides of both the first positioning groove and the second positioning groove.

[0017] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe has a cutting fluid transmission channel inside the mounting section.

[0018] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe has an opening in the cutting fluid transmission channel that extends to the surface of the drill bit body.

[0019] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe includes a first drill bit that is adapted to a first positioning groove.

[0020] According to at least one embodiment of the present disclosure, a high-efficiency U-shaped drill bit for a CNC lathe includes a tool head assembly further comprising a second tool head adapted to a second positioning groove.

[0021] The technical effects and advantages of this utility model are as follows:

[0022] This invention can provide a fixed storage for the two cutter head bolts used to fix the cutter head, so as to avoid loss. At the same time, it can make it easier to align and reset later, thereby realizing the efficient replacement of the first cutter head and the second cutter head. Attached Figure Description

[0023] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0024] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency U-shaped drill bit for a CNC lathe according to one embodiment of the present disclosure.

[0025] Figure 2 This is a high-efficiency U-shaped drill bit for a CNC lathe according to one embodiment of the present disclosure. Figure 1 Enlarged structural diagram of section A.

[0026] Figure 3 This is a schematic diagram of a high-efficiency tool head assembly and disassembly mechanism for a high-efficiency U-shaped drill bit for a CNC lathe, according to one embodiment of the present disclosure.

[0027] The specific labels in the attached figures are as follows:

[0028] 1. Drill bit assembly; 11. Mounting part; 12. Drill bit body; 13. Chip removal groove; 14. First positioning groove; 15. Second positioning groove; 16. First connecting screw hole;

[0029] 2. Cutter head assembly; 21. First cutter head; 22. Second cutter head;

[0030] 3. High-efficiency blade assembly and disassembly mechanism; 31. Movable pressure plate; 32. Second connecting screw hole; 33. Blade bolt; 34. Limiting post. Detailed Implementation

[0031] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0032] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency U-shaped drill bit for a CNC lathe according to one embodiment of the present disclosure.

[0033] Figure 2 This is a high-efficiency U-shaped drill bit for a CNC lathe according to one embodiment of the present disclosure. Figure 1 Enlarged structural diagram of section A.

[0034] Figure 3 This is a schematic diagram of the efficient tool head disassembly and assembly mechanism 3 for a high-efficiency U-shaped drill bit for a CNC lathe according to one embodiment of the present disclosure.

[0035] like Figures 1-3 As shown, the high-efficiency U-shaped drill bit for CNC lathes disclosed herein may include components such as a drill bit assembly 1, a cutter head assembly 2, and a high-efficiency cutter head disassembly and assembly mechanism 3.

[0036] like Figure 3 As shown in this disclosure, the drill assembly 1 includes a mounting part 11, a drill body 12, a chip removal groove 13, a first positioning groove 14, and a second positioning groove 15. The drill body 12 is fixedly disposed on the left end of the mounting part 11. Two chip removal grooves 13 are provided, and the two chip removal grooves 13 are evenly opened on the outside of the drill body 12. A cutting fluid transmission channel is opened inside the mounting part 11, and the opening of the cutting fluid transmission channel extends to the surface of the drill body 12. The first positioning groove 14 and the second positioning groove 15 are both opened inside the adjacent chip removal grooves 13, and a first connecting screw hole 16 is provided through the inside of the first positioning groove 14 and the second positioning groove 15.

[0037] like Figure 3As shown, in a preferred embodiment, the cutter head assembly 2 is provided in two sets. The two sets of cutter head assemblies 2 are evenly distributed on the outside of the drill bit assembly 1 and are detachably connected to the drill bit assembly 1. The cutter head assembly 2 includes a first cutter head 21 and a second cutter head 22. The first cutter head 21 is adapted to the first positioning groove 14, and the second cutter head 22 is adapted to the second positioning groove 15. A fixing hole is provided through the first cutter head 21 and the second cutter head 22.

[0038] Therefore, the device can be connected to the lathe via the mounting part 11. The machine tool then drives the device to continuously approach the rotating workpiece. During this process, the first cutting head 21 opens a channel in the workpiece, and the second cutting head 22 then enters the channel to perform finishing on the channel.

[0039] like Figure 3 As shown in this disclosure, the high-efficiency blade assembly and disassembly mechanism 3 includes a movable pressure plate 31, a second connecting screw hole 32, a blade bolt 33, and a limiting post 34. The movable pressure plate 31 is rotatably mounted inside an adjacent chip removal groove 13 via a pin. There are two second connecting screw holes 32 and two blade bolts 33. The two second connecting screw holes 32 are respectively disposed through both ends of the movable pressure plate 31. The two blade bolts 33 are respectively threaded to the inner sides of the two second connecting screw holes 32. The limiting post 34 is fixedly connected to the inner wall of the adjacent chip removal groove 13 and is located on one side of the movable pressure plate 31.

[0040] Therefore, when it is necessary to replace the old first cutter head 21 and second cutter head 22, firstly, use a tool to rotate the two second connecting screw holes 32, so that the end of the second connecting screw hole 32 exits the first connecting screw hole 16 and enters the inner side of the second connecting screw hole 32. At this time, since the cutter head bolt 33 has not disengaged from the inner side of the second connecting screw hole 32, the movable pressure plate 31 fixes and stores the cutter head bolt 33. Then, rotate the movable pressure plate 31 until the right side of the limiting post 34 blocks the movable pressure plate 31. Then, remove the first cutter head 21 and the second cutter head 22 from the first positioning groove 14 and the second positioning groove 15. Replace the new first cutter head 21 and second cutter head 22, then rotate the movable pressure plate 31 in the opposite direction to reset it until the top of the limit post 34 blocks the movable pressure plate 31. At this time, the two second connecting screw holes 32 automatically align with the two first connecting screw holes 16. Finally, rotate the two cutter head bolts 33 in the opposite direction to fix the new first cutter head 21 and second cutter head 22. Compared with the existing technology, the two cutter head bolts 33 used to fix the cutter head can be fixed and stored to avoid loss. At the same time, it is easier to align and reset them later, thus achieving efficient replacement of the first cutter head 21 and second cutter head 22.

[0041] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.

[0042] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A high-efficiency U-shaped drill bit for CNC lathes, characterized in that, include: A drill bit assembly, which is used to install and fix the cutter head assembly and the high-efficiency cutter head assembly and disassembly mechanism; A cutting head assembly for roughing and finishing holes; as well as A high-efficiency blade assembly / disassembly mechanism, comprising a movable pressure plate, a second connecting screw hole, a blade bolt, and a limiting post; The movable pressure plate is rotatably mounted on the inner side of the adjacent chip removal groove via a pin shaft. There are two second connecting screw holes and two cutter head bolts. The two second connecting screw holes are respectively installed through both ends of the movable pressure plate. The two cutter head bolts are respectively threaded to the inner side of the two second connecting screw holes. The limiting post is fixedly connected to the inner wall of the adjacent chip removal groove and is located on one side of the movable pressure plate.

2. The high-efficiency U-shaped drill bit for CNC lathes according to claim 1, characterized in that: The cutter head assembly is provided in two sets, which are evenly distributed on the outside of the drill bit assembly and are detachably connected to the drill bit assembly.

3. The high-efficiency U-shaped drill bit for CNC lathes according to claim 2, characterized in that: The drill bit assembly includes a mounting part and a drill bit body, with the drill bit body fixedly disposed at the left end of the mounting part.

4. The high-efficiency U-shaped drill bit for CNC lathes according to claim 3, characterized in that: The drill bit assembly also includes two chip removal grooves, which are evenly distributed on the outside of the drill bit body.

5. The high-efficiency U-shaped drill bit for CNC lathes according to claim 4, characterized in that: The drill bit assembly also includes a first positioning groove and a second positioning groove, both of which are located inside adjacent chip removal grooves.

6. The high-efficiency U-shaped drill bit for CNC lathes according to claim 5, characterized in that: Both the first positioning groove and the second positioning groove have a first connecting screw hole through their inner sides.

7. The high-efficiency U-shaped drill bit for CNC lathes according to claim 6, characterized in that: The mounting section has a cutting fluid transmission channel inside.

8. The high-efficiency U-shaped drill bit for CNC lathes according to claim 7, characterized in that: The opening of the cutting fluid transmission channel extends to the surface of the drill bit body.

9. The high-efficiency U-shaped drill bit for CNC lathes according to claim 8, characterized in that: The cutter head assembly includes a first cutter head, which is adapted to a first positioning groove.

10. The high-efficiency U-shaped drill bit for CNC lathes according to claim 9, characterized in that: The cutter head assembly also includes a second cutter head, which is adapted to the second positioning groove.

Images