Dagger drill with reaming structure

Abstract

The utility model belongs to the technical field of dagger drills, particularly relates to a dagger drill with a chambering structure, and solves the problems that in the prior art, a drill body, a chip pocket, a drill tip, a blade and a bottom edge part are fixed into a whole, so that the drill body needs to be replaced together with the chip pocket, the drill tip, the blade and the bottom edge part when the drill tip, the blade and the bottom edge part are abraded; according to the technical scheme, the device comprises a drill bit mounting block, a first reaming cutting block is movably mounted below the drill bit mounting block, a second chip groove is formed in the outer wall of the first reaming cutting block, a first chip groove is formed in the outer wall of the drill bit mounting block, and a drill bit limiting block is fixedly connected to the upper portion of the drill bit mounting block; a first fixing limiting hole is fixedly connected to the lower portion of the drill bit mounting block, a first mounting groove is formed in the surface of the upper end of the first reaming cutting block, and a first connecting limiting hole is formed in the surface of the outer wall of the second chip groove. According to the utility model, the use safety is improved.

Description

Technical Field

[0001] The utility model relates to a dagger drill with a hole expansion structure, in particular to a dagger drill with a hole expansion structure, and belongs to the technical field of dagger drills. Background Art

[0002] The front end of the dagger drill is triangular or diamond-shaped, which makes it as sharp as a dagger. It is mainly used to penetrate hard materials such as metal, tiles, glass, etc.

[0003] A dagger drill for processing holes in aluminum honeycomb materials with announcement number CN214212336U includes a drill body made of high-speed steel or cemented carbide, a drill tip made of artificial polycrystalline diamond, and a plurality of blades made of artificial polycrystalline diamond, the same number of which is the same as the chip grooves of the drill body; a plurality of chip grooves are provided in the drill body, extending from the end of one end of the drill body toward the other end; the drill tip is welded and fixed to the end of one end of the drill body to form the bottom blade of the dagger drill.

[0004] In the above technical solution, since the drill body and the chip groove, drill point, blade and bottom cutting edge are fixed together, the drill point, blade and bottom cutting edge need to be replaced together with the chip groove, drill point, blade and bottom cutting edge when they are worn, which will increase the economic loss of the user. For this reason, we provide a dagger drill with a hole expansion structure. Utility Model Content

[0005] The utility model provides a dagger drill with a hole expansion structure to solve the problem that since the drill body, the chip groove, the drill point, the blade and the bottom blade are fixed together, the drill point, the blade and the bottom blade need to be replaced together when the drill body, the chip groove, the drill point, the blade and the bottom blade are worn, which will increase the economic loss of the user.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a dagger drill with a hole expansion structure, comprising a drill mounting block, a hole expansion cutting block one is movably mounted below the drill mounting block, a chip removal groove two is opened on the outer wall of the hole expansion cutting block one, a chip removal groove one is opened on the outer wall of the drill mounting block, a drill limit block is fixedly connected above the drill mounting block, a limit connection block one is fixedly connected below the drill mounting block, a mounting groove one is opened on the upper end surface of the hole expansion cutting block one, a connection limit hole one is opened on the outer wall surface of the chip removal groove two, and a fixing screw one is installed on the internal thread of the connection limit hole one;

[0007] A blade fixing hole is provided on the outer wall of the drill limit block, a blade mounting groove is provided below the drill limit block, a drilling blade is movably installed above the blade mounting groove, a blade limit hole is provided on the outer wall of the drilling blade, a fixing screw four is installed inside the blade limit hole, and a fixed limit hole one is provided on the outer wall of the limit connecting block one.

[0008] As a further solution of the utility model: a second hole enlarging cutting block is movably installed below the first hole enlarging cutting block, and a drill base is movably installed below the second hole enlarging cutting block.

[0009] As a further solution of the utility model: the lower end of the hole expansion cutting block 1 is fixedly connected to the limiting connection block 2, and the outer wall of the limiting connection block 2 is provided with a fixed limiting hole 2.

[0010] As a further solution of the utility model: the outer wall of the reaming cutting block 2 is provided with a chip removal groove 3, and the outer wall surface of the chip removal groove 3 is provided with a connecting limit hole 2.

[0011] As a further solution of the utility model: the internal thread of the second connection limit hole is installed with a fixing screw 2, and the outer wall of the second hole expansion cutting block is provided with a connecting installation groove 2.

[0012] As a further solution of the utility model: the lower end of the hole-expanding cutting block 2 is fixedly connected to the limiting connecting block 3, and the outer wall of the limiting connecting block 3 is provided with a connecting fixing hole 3.

[0013] As a further solution of the utility model: the outer wall of the drill base is provided with a chip removal groove four, the upper end of the drill base is provided with a connecting installation groove three, and the lower part of the drill base is fixedly connected with a clamping block.

[0014] As a further solution of the utility model: the outer wall of the chip removal groove four is provided with a connection limit hole three, and the internal thread of the connection limit hole three is installed with a fixing screw three.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model removes the fixing screw 4 from the inside of the blade limiting hole and the blade fixing hole, so that the drilling blade can be replaced separately, and the debris drilled by the drilling blade can be discharged outward through the chip discharge groove 1, so as to avoid the debris from damaging the drilling blade, thereby facilitating the use of the user. By inserting the limiting connecting block 1 into the installation groove 1, and then screwing the fixing screw 1 into the connecting limiting hole 1 and the fixing limiting hole 1, the stability between the drill bit installation block and the reaming cutting block 1 can be improved, and the device can be prevented from falling off during reaming, thereby improving the safety during use;

[0017] 2. The utility model allows the user to insert the limiting connecting block 2 into the connecting installation groove 2, and then screw the fixing screw 2 into the connecting limiting hole 2 and the fixing limiting hole 2, so as to improve the stability between the reaming cutting block 2 and the reaming cutting block 2, thereby avoiding the stability during reaming, and the chips drilled by the drilling blade can be discharged to the outside through the chip groove 1, the chip groove 2, and the chip groove 3, thereby avoiding the accumulation of chips, thereby avoiding the damage of the tool, and being convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the drill bit structure of the utility model;

[0020] Figure 3 This is a structural schematic diagram of a hole enlarging and cutting block of the utility model;

[0021] Figure 4 This is a schematic diagram of the second structure of the hole enlarging cutting block of the utility model;

[0022] Figure 5 This is a structural schematic diagram of the drill bit base of the utility model.

[0023] In the figure: 1, drill mounting block; 2, hole reaming cutting block one; 3, hole reaming cutting block two; 4, drill base; 5, chip groove one; 6, chip groove two; 7, chip groove three; 8, chip groove four; 9, fixing screw one; 10, fixing screw two; 11, fixing screw three; 12, fixing screw four; 13, drill stop block; 14, drilling blade; 15, clamping block; 16, limit connection block one; 17, blade mounting slot; 18, blade limit hole; 19, blade fixing hole; 20, fixed limit hole one; 21, mounting slot one; 22, limit connection block two; 23, fixed limit hole two; 24, connecting limit hole one; 25, connecting mounting slot two; 26, connecting limit hole two; 27, connecting fixing hole three; 28, limit connection block three; 29, connecting mounting slot three; 30, connecting limit hole three. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0025] like Figures 1 to 5As shown, a dagger drill with a hole expansion structure includes a drill mounting block 1, a hole expansion cutting block 2 is movably mounted below the drill mounting block 1, a chip removal groove 6 is provided on the outer wall of the hole expansion cutting block 2, a chip removal groove 5 is provided on the outer wall of the drill mounting block 1, a drill limit block 13 is fixedly connected above the drill mounting block 1, a limit connection block 16 is fixedly connected below the drill mounting block 1, a mounting groove 21 is provided on the upper end surface of the hole expansion cutting block 2, a connection limit hole 24 is provided on the outer wall surface of the chip removal groove 6, a fixing screw 9 is installed on the internal thread of the connection limit hole 24, a blade fixing hole 19 is provided on the outer wall of the drill limit block 13, a blade mounting groove 17 is provided below the drill limit block 13, and a drilling blade 14 is movably mounted above the blade mounting groove 17 A blade limiting hole 18 is provided on the outer wall of the drilling blade 14, and a fixing screw 412 is installed inside the blade limiting hole 18. A fixed limiting hole 20 is provided on the outer wall of the limiting connecting block 16. The limiting connecting block 16 is inserted into the mounting groove 21, and then the fixing screw 9 is screwed into the connecting limiting hole 24 and the fixed limiting hole 20. This can improve the stability between the drill mounting block 1 and the reaming cutting block 2, and can prevent the device from falling off during reaming, thereby improving safety during use. By removing the fixing screw 412 from the inside of the blade limiting hole 18 and the blade fixing hole 19, it is convenient to replace the drilling blade 14 alone, and the chips drilled by the drilling blade 14 can be discharged outward through the chip discharge groove 5, so as to prevent the chips from damaging the drilling blade 14, thereby making it convenient for users to use. Embodiment 2

[0026] In addition to all the technical features of the first embodiment, the present embodiment also includes: a second reaming cutting block 3 is movably installed below the reaming cutting block 2, a drill base 4 is movably installed below the reaming cutting block 3, a second limit connection block 22 is fixedly connected to the lower end of the reaming cutting block 2, a second fixed limit hole 23 is provided on the outer wall of the limit connection block 22, a clamping block 15 is fixedly connected below the drill base 4, a third chip groove 7 is provided on the outer wall of the reaming cutting block 3, a second connection limit hole 26 is provided on the outer wall surface of the third chip groove 7, a second fixing screw 10 is installed on the inner thread of the second connection limit hole 26, a second connection installation groove 25 is provided on the outer wall of the reaming cutting block 3, the second limit connection block 22 is inserted into the second connection installation groove 25, and then the fixing screw 10 is fixedly installed on the outer wall of the reaming cutting block 3 The screw 2 10 is screwed into the connecting limit hole 26 and the fixed limit hole 23, which can improve the stability between the reaming cutting block 2 3 and the reaming cutting block 2 3 and avoid stability during reaming. The lower end of the reaming cutting block 2 3 is fixedly connected to the limited connecting block 3 28, and the outer wall of the limited connecting block 3 28 is provided with a connecting fixing hole 3 27. The outer wall of the drill base 4 is provided with a chip groove 4 8. The upper end of the drill base 4 is provided with a connecting installation groove 3 29, and the outer wall of the chip groove 4 8 is provided with a connecting limit hole 30. The internal thread of the connecting limit hole 30 is installed with a fixing screw 3 11, and the chips drilled by the drilling blade 14 can be discharged to the outside through the chip groove 1 5, the chip groove 2 6, and the chip groove 3 7 to avoid chip accumulation, thereby avoiding damage to the tool and facilitating user use.

[0027] Working principle: Remove the fixing screw 4 12 from the inside of the blade limiting hole 18 and the blade fixing hole 19, so as to facilitate the replacement of the drilling blade 14 separately. The cooperation between the drill bit limiting block 13, the blade fixing hole 19 and the blade mounting groove 17 can stably fix the drilling blade 14 on the top of the drill bit mounting block 1, so that the user can expand the workpiece conveniently, and the chips drilled by the drilling blade 14 can be discharged outward through the chip discharge groove 5 to avoid the chips from damaging the drilling blade 14, thereby facilitating the use of the user. The user inserts the limiting connecting block 16 into the mounting groove 21.

[0028] Screwing the fixing screw 19 into the connecting limit hole 124 and the fixed limit hole 120 can improve the stability between the drill mounting block 1 and the reaming cutting block 2, and can prevent the device from falling off during reaming, thereby improving safety during use. Then insert the limiting connecting block 3 28 into the connecting mounting groove 3 29, and then screw the fixing screw 3 11 into the connecting limit hole 30 and the connecting fixing hole 3 27, so that the clamping block 15 can drive the drill base 4, the reaming cutting block 2 3, the reaming cutting block 2 and the drill mounting block 1 to rotate, which can facilitate the device to reaming. The user inserts the limiting connecting block 22 into the connecting mounting groove 25, and then screws the fixing screw 2 10 into the connecting limit hole 26 and the fixed limit hole 23, which can improve the stability between the reaming cutting block 2 3 and the reaming cutting block 2 3, and avoid stability during reaming.

[0029] The chips drilled out by the drilling blade 14 can be discharged to the outside through the cooperation between the chip groove 1 5, the chip groove 2 6, the chip groove 3 7 and the chip groove 4 8 to avoid the accumulation of chips, thereby avoiding damage to the tool and making it convenient for users to use.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dagger drill with a hole expansion structure, comprising a drill bit mounting block (1), characterized in that: A reaming cutting block (2) is movably mounted below the drill bit mounting block (1), a second chip removal groove (6) is provided on the outer wall of the reaming cutting block (2), a first chip removal groove (5) is provided on the outer wall of the drill bit mounting block (1), a drill bit limit block (13) is fixedly connected above the drill bit mounting block (1), a limit connection block (16) is fixedly connected below the drill bit mounting block (1), a mounting groove (21) is provided on the upper end surface of the reaming cutting block (2), a connection limit hole (24) is provided on the outer wall surface of the second chip removal groove (6), and a fixing screw (9) is installed on the internal thread of the connection limit hole (24); The outer wall of the drill bit limit block (13) is provided with a blade fixing hole (19), a blade mounting groove (17) is provided below the drill bit limit block (13), a drilling blade (14) is movably mounted above the blade mounting groove (17), a blade limit hole (18) is provided on the outer wall of the drilling blade (14), a fixing screw four (12) is mounted inside the blade limit hole (18), and a fixed limit hole one (20) is provided on the outer wall of the limit connection block one (16).

2. The dagger drill with a hole expansion structure according to claim 1, characterized in that: A second hole enlarging cutting block (3) is movably mounted below the first hole enlarging cutting block (2), and a drill base (4) is movably mounted below the second hole enlarging cutting block (3).

3. The dagger drill with a hole expansion structure according to claim 2, characterized in that: The lower end of the reaming cutting block 1 (2) is fixedly connected to the limiting connection block 2 (22), and the outer wall of the limiting connection block 2 (22) is provided with a fixed limiting hole 2 (23).

4. The dagger drill with a hole expansion structure according to claim 2, characterized in that: The outer wall of the second reaming cutting block (3) is provided with a third chip removal groove (7), and the outer wall surface of the third chip removal groove (7) is provided with a second connection limiting hole (26).

5. The dagger drill with a hole expansion structure according to claim 4, characterized in that: The inner thread of the second connection limit hole (26) is installed with a fixing screw (10), and the outer wall of the second expansion cutting block (3) is provided with a connection installation groove (25).

6. The dagger drill with a hole expansion structure according to claim 2, characterized in that: The lower end of the second reaming cutting block (3) is fixedly connected to a third limiting connection block (28), and a third connecting and fixing hole (27) is provided on the outer wall of the third limiting connection block (28).

7. The dagger drill with a hole expansion structure according to claim 2, characterized in that: The outer wall of the drill base (4) is provided with a chip removal groove four (8), the upper end of the drill base (4) is provided with a connection installation groove three (29), and the lower part of the drill base (4) is fixedly connected with a clamping block (15).

8. The dagger drill with a hole expansion structure according to claim 7, characterized in that: The outer wall of the chip removal groove four (8) is provided with a connection limit hole three (30), and the internal thread of the connection limit hole three (30) is installed with a fixing screw three (11).

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