Hole machining tool with independent drill tip in center

Abstract

The utility model relates to the technical field of hole machining tools, discloses a hole machining tool with an independent drill tip in the center, and solves the problems that in the using process of the hole machining tool with the center drill tip, the drill tip in the center of the hole machining tool is inconvenient to disassemble and assemble, operation of workers is affected, and therefore better practicability is inconvenient to achieve. A threaded connector is fixedly mounted at the top of the tool apron, an annular tool bit is fixedly mounted at the bottom of the tool apron, the outer diameter of the annular tool bit is larger than the diameter of the tool apron, a mounting groove is formed in the top end of the tool apron, the two ends of the mounting groove extend to the outer side of the tool apron, and a rod groove is formed in the middle of the bottom end of the mounting groove. The bottom of the rod groove extends to the bottom of the tool apron; according to the hole machining tool with the center drill tip, when the hole machining tool with the center drill tip is used, the drill tip at the center position of the hole machining tool is convenient to disassemble and assemble, a worker can operate the hole machining tool better, and therefore better practicability can be achieved conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of hole processing tools, in particular to a hole processing tool with an independent drill tip at the center. Background Art

[0002] Holemaking tools are used for drilling, reaming, and boring, and can be divided into different types based on their purpose and structure. Holemaking tools are widely used in manufacturing industries such as automotive, aviation, molds, and machine tools. To ensure greater precision, a drill tip is installed at the center of the tool. Patent publication number CN109732127B discloses a holemaking tool with an independent drill tip at the center, including a tool body and a drill tip. The drill tip comprises an inner drill tip and an outer drill tip, each of which is independent of the other. The outer drill tip is disposed on the tool body and is mounted at the center of the outer drill tip, forming the core of the outer drill tip. The inner drill tip has a greater cutting depth than the outer drill tip. However, during use, the center drill tip of the holemaking tool disclosed in this patent is difficult to disassemble and install, hindering operator operation and hindering optimal practicality. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a hole processing tool with an independent drill tip in the center, which effectively solves the problem that the drill tip in the center position of the hole processing tool with a center drill tip is difficult to disassemble and assemble during use, affecting the operation of the staff, and thus making it difficult to achieve better practicality.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a hole processing tool with an independent drill tip in the center, comprising a tool holder, a threaded connector fixedly installed on the top of the tool holder, an annular cutter head fixedly installed on the bottom of the tool holder, and the outer diameter of the annular cutter head is larger than the diameter of the tool holder, a mounting groove is provided inside the top of the tool holder, and both ends of the mounting groove extend to the outside of the tool holder, a rod groove is provided in the middle of the bottom end of the mounting groove, and the bottom of the rod groove extends to the bottom of the tool holder, a center drill rod is plugged into and installed inside the rod groove, a fixing hole is symmetrically provided through the outside of the center drill rod, a connecting seat is fixedly installed in the middle of the inner bottom end of the mounting groove, a connecting hole is provided at the bottom of the connecting seat, and the top of the center drill rod is located inside the connecting seat, through holes are provided on both sides of the connecting seat, and the diameter of the through hole is adapted to the diameter of the fixing hole, an adjustment fixing component is fixedly installed on the inner top of the mounting groove, and the adjustment fixing component is connected to the fixing hole.

[0005] Preferably, the adjustment and fixing assembly includes a bar shell, and the bar shell is fixedly installed on the internal top end of the mounting groove, an adjusting block is provided on one side of the bar shell, a bidirectional screw is rotatably installed inside the bar shell, and one end of the bidirectional screw movably passes through one side of the bar shell and is fixedly connected to the adjusting block, a threaded movable sleeve is symmetrically installed on the inside of the bar shell and on the outside of the bidirectional screw, a sliding block is fixedly installed on the bottom of the threaded movable sleeve, a bar slide groove is symmetrically penetrated inside the bottom end of the bar shell, and the sliding block slides through and is installed inside the bar slide groove, a movable frame is fixedly installed on the bottom of the sliding block, and a fixing rod is fixedly installed on the side where the two movable frames are close to each other, and the fixing rod is movable in the through hole at one end away from the movable frame and extends to the inside of the fixing hole.

[0006] Preferably, a locking screw is fixedly installed on the end of the bidirectional screw away from the adjusting block, and the locking screw can move through and extend to the outside of the end of the strip shell away from the adjusting block. A locking nut is threadedly installed on the outside of the strip shell and located on the outer side of the locking screw, and one side of the locking nut is in contact with the outer side of the strip shell. A circular stopper is fixedly installed on the end of the locking screw away from the bidirectional screw, and the diameter of the circular stopper is larger than the inner diameter of the locking nut.

[0007] Preferably, a positioning slide is symmetrically fixed on the outer side of the center drill rod, and the two positioning slides and the two fixing holes are symmetrically arranged in a cross shape on the outer side of the center drill rod. Positioning slides are symmetrically opened on the inner wall of the rod groove, and the positioning slides are slidably installed inside the positioning slides.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1) During operation, through the interaction of the tool holder, threaded connector, annular tool head, mounting groove, rod groove, center drill rod, fixing hole, connecting seat, connecting hole, through hole and adjustment fixing assembly, the drill tip at the center position of the hole machining tool with a center drill tip can be easily disassembled and assembled during use, so as to facilitate better operation by the staff, thereby achieving better practicality;

[0010] 2) During operation, the locking screw, locking nut and circular block interact with each other to lock or unlock the bidirectional screw during use, thereby ensuring that the adjustment and fixing assembly can work stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached figure:

[0013] Figure 1 This is a structural diagram of a hole processing tool with an independent drill tip at the center of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the knife holder of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the rod slot of the present utility model;

[0016] Figure 4 This is a schematic diagram of the central drill rod structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the adjustment and fixing component of the present utility model.

[0018] In the figure: 1. Tool holder; 2. Threaded connector; 3. Annular tool head; 4. Mounting slot; 5. Rod slot; 6. Center drill rod; 7. Fixing hole; 8. Connecting seat; 9. Connecting hole; 10. Through hole; 11. Adjustment and fixing assembly; 12. Strip housing; 13. Adjustment block; 14. Bidirectional screw; 15. Threaded movable sleeve; 16. Sliding block; 17. Strip slide; 18. Movable frame; 19. Fixing rod; 20. Locking screw; 21. Locking nut; 22. Circular stopper; 23. Positioning slide; 24. Positioning slide. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1, by Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5The utility model includes a tool holder 1, a threaded connector 2 is fixedly installed on the top of the tool holder 1, an annular cutter head 3 is fixedly installed on the bottom of the tool holder 1, and the outer diameter of the annular cutter head 3 is larger than the diameter of the tool holder 1, a mounting groove 4 is provided inside the top of the tool holder 1, and both ends of the mounting groove 4 extend to the outside of the tool holder 1, a rod groove 5 is provided in the middle of the bottom end of the mounting groove 4, and the bottom of the rod groove 5 extends to the bottom of the tool holder 1, a center drill rod 6 is installed in the rod groove 5, and a fixing hole 7 is symmetrically opened on the outside of the center drill rod 6, a connecting seat 8 is fixedly installed in the middle of the bottom end of the mounting groove 4, and the bottom of the connecting seat 8 is provided. There is a connecting hole 9, and the top of the center drill rod 6 is located inside the connecting seat 8. Through holes 10 are opened on both sides of the connecting seat 8, and the diameter of the through hole 10 is adapted to the diameter of the fixing hole 7. The outer side of the center drill rod 6 is symmetrically fixed with a positioning slide 23, and the two positioning slides 23 and the two fixing holes 7 are cross-shaped and symmetrically arranged on the outer side of the center drill rod 6. Positioning slides 24 are symmetrically opened on the inner wall of the rod groove 5, and the positioning slides 23 are slidably installed in the interior of the positioning slide 24. The inner top of the mounting groove 4 is fixedly installed with an adjustment fixing component 11, and the adjustment fixing component 11 is connected to the fixing hole 7;

[0021] The adjusting and fixing assembly 11 includes a strip housing 12, and the strip housing 12 is fixedly installed on the internal top of the mounting groove 4. An adjusting block 13 is provided on one side of the strip housing 12. A bidirectional screw 14 is rotatably installed inside the strip housing 12, and one end of the bidirectional screw 14 is movable through one side of the strip housing 12 and fixedly connected to the adjusting block 13. A threaded movable sleeve 15 is symmetrically threadedly installed inside the strip housing 12 and on the outside of the bidirectional screw 14. A sliding block 16 is fixedly installed at the bottom of the threaded movable sleeve 15. A strip slide 17 is symmetrically penetrated inside the bottom end of the strip housing 12, and the sliding block 16 is slidably installed inside the strip slide 17. A movable frame 18 is fixedly installed at the bottom of the sliding block 16. The sides of the movable frames 18 that are close to each other are fixedly installed with fixing rods 19, and the end of the fixing rod 19 away from the movable frame 18 is movable in the through hole 10 and extends to the inside of the fixing hole 7, and the end of the bidirectional screw 14 away from the adjusting block 13 is fixedly installed with a locking screw 20, and the end of the locking screw 20 away from the bidirectional screw 14 is movable through and extends to the outside of the end of the strip shell 12 away from the adjusting block 13, and a locking nut 21 is threadedly installed on the outside of the strip shell 12 and located on the outside of the locking screw 20, and one side of the locking nut 21 is in contact with the outside of the strip shell 12, and a circular stopper 22 is fixedly installed on the end of the locking screw 20 away from the bidirectional screw 14, and the diameter of the circular stopper 22 is larger than the inner diameter of the locking nut 21.

[0022] During use, through the interaction of the provided tool holder 1, threaded connector 2, annular tool head 3, mounting groove 4, rod groove 5, center drill rod 6, fixing hole 7, connecting seat 8, connecting hole 9, through hole 10 and adjustment fixing assembly 11, the drill tip at the center position of the hole processing tool with a center drill tip can be easily disassembled and assembled during use, so that the staff can better operate it, thereby achieving better practicality, and through the interaction of the provided locking screw 20, locking nut 21 and circular stopper 22, the bidirectional screw 14 can be locked or unlocked during use, thereby ensuring that the adjustment fixing assembly 11 can work stably.

[0023] Working principle: during operation, first hold the adjusting block 13 and keep it stationary, so that the bidirectional screw 14 remains stationary, then loosen the locking nut 21, release the positioning of the locking screw 20, thereby releasing the positioning of the bidirectional screw 14, and then rotate the adjusting block 13 to drive the bidirectional screw 14 to rotate, and the bidirectional screw 14 drives the threaded movable sleeve 15 to move, and the threaded movable sleeve 15 drives the sliding block 16 to slide inside the strip slide 17, which can ensure that the threaded movable sleeve 15 achieves better stability when moving. At the same time, the sliding block 16 drives the movable frame 18 to move, and the movable frame 18 drives the fixing rod 19 to move, and the fixing rod 19 moves and disengages from the fixing hole 7, releasing the fixation of the center drill rod 6, and then the center drill rod 6 can be pulled out from the inside of the rod groove 5. After the center drill rod 6 drives the positioning slide bar 23 to move out of the positioning slide groove 24, the disassembly operation of the center drill rod 6 is completed. When rod 6 is reinstalled, the center drill rod 6 is inserted into the inside of the rod groove 5, and the positioning slide 23 is slidably installed in the inside of the positioning slide 24, and then the center drill rod 6 is pushed to move inside the rod groove 5 so that the top of the center drill rod 6 is inserted into the connecting hole 9 inside the connecting seat 8. After the positioning slide 23 is fully inserted into the inside of the positioning slide 24, the fixing hole 7 and the fixing rod 19 are in a horizontal alignment state, and then the adjusting block 13 is rotated in the opposite direction to drive the fixing rod 19 to reset and move. The fixing rod 19 is reset and inserted into the inside of the fixing hole 7 to fix the center drill rod 6, and then the adjusting block 13 is held to keep it stationary, and then the locking nut 21 is tightened to reposition the bidirectional screw 14. In this way, the drill tip in the center position of the hole processing tool with a center drill tip can be easily disassembled and assembled during use, so that the staff can better operate it, thereby achieving better practicality.

Claims

1. A hole-making tool with an independent drill tip at the center, comprising a tool holder (1), characterized in that: The top of the tool holder (1) is fixedly mounted with a threaded connector (2), the bottom of the tool holder (1) is fixedly mounted with an annular cutter head (3), and the outer diameter of the annular cutter head (3) is larger than the diameter of the tool holder (1), a mounting groove (4) is provided inside the top of the tool holder (1), and both ends of the mounting groove (4) extend to the outside of the tool holder (1), a rod groove (5) is provided in the middle of the bottom end of the mounting groove (4), and the bottom of the rod groove (5) extends to the bottom of the tool holder (1), and a center drill rod (6) is inserted and installed inside the rod groove (5), and the center drill rod (6) ) is symmetrically provided with fixing holes (7) on the outside of the mounting groove (4), a connecting seat (8) is fixedly installed in the middle of the inner bottom end, a connecting hole (9) is provided at the bottom of the connecting seat (8), and the top end of the center drill rod (6) is located inside the connecting seat (8), through holes (10) are provided on both sides of the connecting seat (8), and the diameter of the through holes (10) is adapted to the diameter of the fixing hole (7), an adjusting fixing assembly (11) is fixedly installed at the inner top end of the mounting groove (4), and the adjusting fixing assembly (11) is connected to the fixing hole (7).

2. The hole machining tool with an independent drill tip at the center according to claim 1, characterized in that: The adjusting and fixing assembly (11) includes a strip housing (12), and the strip housing (12) is fixedly installed at the inner top end of the installation groove (4); an adjusting block (13) is provided on one side of the strip housing (12); a bidirectional screw (14) is rotatably installed inside the strip housing (12); one end of the bidirectional screw (14) is movably passed through one side of the strip housing (12) and is fixedly connected to the adjusting block (13); a threaded movable sleeve (15) is symmetrically threadedly installed inside the strip housing (12) and on the outer side of the bidirectional screw (14). A sliding block (16) is fixedly installed at the bottom of the threaded movable sleeve (15), a strip-shaped slide groove (17) is symmetrically opened inside the bottom end of the strip housing (12), and the sliding block (16) is slidably installed inside the strip-shaped slide groove (17), and a movable frame (18) is fixedly installed at the bottom of the sliding block (16). A fixing rod (19) is fixedly installed on the side where the two movable frames (18) are close to each other, and the end of the fixing rod (19) away from the movable frame (18) is movable in the through hole (10) and extends to the inside of the fixing hole (7).

3. The hole machining tool with an independent drill tip at the center according to claim 2, characterized in that: A locking screw (20) is fixedly installed at one end of the bidirectional screw (14) away from the adjusting block (13), and the locking screw (20) moves through and extends to the outside of one end of the strip shell (12) away from the adjusting block (13). A locking nut (21) is threadedly installed outside the strip shell (12) and located on the outside of the locking screw (20), and one side of the locking nut (21) contacts the outside of the strip shell (12). A circular stopper (22) is fixedly installed at one end of the locking screw (20) away from the bidirectional screw (14), and the diameter of the circular stopper (22) is larger than the inner diameter of the locking nut (21).

4. The hole machining tool with an independent drill tip at the center according to claim 1, characterized in that: The outer side of the central drill rod (6) is symmetrically fixed with a positioning slide bar (23), and the two positioning slide bars (23) and the two fixing holes (7) are symmetrically arranged on the outer side of the central drill rod (6) in a cross shape. The inner wall of the rod groove (5) is symmetrically provided with a positioning slide groove (24), and the positioning slide bar (23) is slidably installed inside the positioning slide groove (24).

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