Cobalt-containing auger bit with good coating wear resistance

Abstract

The cobalt-containing twist drill bit comprises a drill bit body and a mounting seat, a connecting rod is arranged at the top of the drill bit body, a connecting pipe is arranged at the bottom of the mounting seat, the connecting rod is mounted in the connecting pipe, a threaded head is arranged at the top of the connecting rod, a threaded groove is formed in the top of the inner side of the connecting pipe, and the threaded head is connected with the threaded groove. Mounting grooves are formed in the two sides of the connecting pipe, fixing assemblies are arranged in the mounting grooves, each fixing assembly comprises a first fixing bolt, first fixing openings are formed in the two sides of the connecting rod, and a reinforcing assembly is arranged on one side of the outer portion of the connecting pipe. By rotating the pull rod, the clamping block is in butt joint, penetrates through the penetrating groove and enters the clamping ring, then the pull rod is rotated, the clamping block is clamped in the clamping ring, and therefore the first fixing bolt is fixed in the mounting groove, and the connecting rod is convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of twist drill, specifically a kind of cobalt-containing twist drill with good plating wear resistance. BACKGROUND

[0002] Twist drill is the most widely used hole processing cutter, usually diameter range is 0.25-80 millimeter, common twist drill type has high-speed steel twist drill and hard alloy twist drill.

[0003] The existing Chinese patent announcement No. CN217095850U, named a kind of cobalt-containing twist drill with good plating wear resistance, the background technology of this patent is explicitly recorded "ordinary twist drill in prior art still has the problem of not being convenient to install in the process of use", and the technical means of this patent technology is solved, but in the technology, staff needs to pull two side handles simultaneously when disassembling twist drill, so as to pull off the clamping block, but when pulling off, since both hands have been used simultaneously, staff cannot rotate twist drill again, that is, twist drill cannot be disassembled, so it is difficult for one person to complete operation, and it is still relatively inconvenient to replace. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of cobalt-containing twist drill with good plating wear resistance to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of cobalt-containing twist drill with good plating wear resistance, including drill bit body, mounting seat, the drill bit body top is provided with connecting rod, the mounting seat bottom is provided with connecting pipe, the connecting rod is installed in connecting pipe, the connecting rod top is provided with threaded head, the connecting pipe inboard top is provided with threaded slot, the threaded head is connected with threaded slot in screw thread, the connecting pipe both sides are provided with installation slot, the installation slot is provided with fixed assembly inside, the fixed assembly is used to fix the connection of connecting rod and connecting pipe, the fixed assembly includes first fixed bolt, the connecting rod both sides are provided with first fixed port, the first fixed bolt is disassembled in first fixed port, the connecting pipe outside one side is provided with reinforcing assembly.

[0007] In a preferred embodiment of the utility model, the first fixed bolt rear side is provided with spring, the spring is connected to the rear side inside installation slot.

[0008] In a preferred embodiment of the utility model, the first fixed bolt both sides are provided with limit block, the installation slot both sides inside are provided with limit rail, the limit block is connected with limit rail in sliding.

[0009] In a preferred embodiment of the utility model, the installation groove outside is provided with a sliding port, and the pull rod is slidably arranged in the sliding port.

[0010] In a preferred embodiment of the utility model, the pull rod top is provided with a movable bolt, the first fixed bolt rear inner side is provided with a movable port, and the movable bolt and the movable port are movably connected.

[0011] In a preferred embodiment of the utility model, the pull rod is provided with a clamping block, the sliding port inner side is provided with a clamping ring, the clamping ring inner side is provided with a through slot, the clamping block passes through the through slot, and the clamping block is movable in the clamping ring.

[0012] In a preferred embodiment of the utility model, the reinforcing assembly comprises a screw port, and the screw port is internally provided with a bolt, and the bolt and the screw port are screw-connected.

[0013] In a preferred embodiment of the utility model, the bolt is provided with a second fixed bolt, one side of the connecting rod is provided with a second fixed port, and the second fixed bolt is detachably arranged on the second fixed port.

[0014] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood by the practice of the utility model.

[0015] Beneficial effect: the first fixed bolt is pulled by the pull rod, so that the first fixed bolt enters the installation groove, the clamping block is butted and passes through the through slot by rotating the pull rod, and enters the clamping ring, the clamping block is clamped in the clamping ring by rotating the pull rod again, so that the first fixed bolt is fixed in the installation groove, the connecting rod is conveniently disassembled and assembled, and after the connecting rod is assembled, the pull rod can be directly rotated, the clamping block is rotated to the through slot, the first fixed bolt is pushed by the spring, so that the first fixed bolt is inserted into the first fixed port, so that the fixed effect is achieved, and the drill bit is prevented from loosening.

[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail with reference to the drawings. The specific embodiment of the utility model is given in detail by the following examples and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the utility model will become apparent and will be readily understood from the following description, taken in conjunction with the drawings, in which:

[0018] Figure 1 It is a kind of main body structure schematic diagram of containing cobalt in good wear resistance of coating wear-resistant spiral drill bit;

[0019] Figure 2 It is a schematic view of the connecting structure of the drill bit body and the mounting seat in a cobalt-containing twist drill bit with good wear resistance of the plating layer;

[0020] Figure 3 It is a schematic view of the inside structure of the mounting groove in a cobalt-containing twist drill bit with good wear resistance of the plating layer;

[0021] Figure 4 It is a schematic view of the connecting structure of the first fixing bolt and the pull rod in a cobalt-containing twist drill bit with good wear resistance of the plating layer.

[0022] In the figure: 1, drill bit body; 11, connecting rod; 12, threaded head; 13, first fixing port; 14, second fixing port; 2, mounting seat; 21, threaded groove; 22, connecting pipe; 23, mounting groove; 24, sliding port; 25, screw port; 3, first fixing bolt; 31, limiting block; 32, limiting rail; 33, spring; 34, movable port; 4, pull rod; 41, clamping block; 42, through groove; 43, movable bolt; 44, clamping ring; 45, bolt; 5, second fixing bolt. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0024] Please refer to Figures 1-4 The present application discloses a cobalt-containing twist drill bit with good wear resistance of the plating layer, which comprises a drill bit body 1 and a mounting seat 2. The drill bit body 1 is the main body of the twist drill bit, and the mounting seat 2 is a mounting structure. The drill bit body 1 is provided with a connecting rod 11 at the top, and the mounting seat 2 is provided with a connecting pipe 22 at the bottom. The connecting rod 11 and the connecting pipe 22 are connected, that is, the connecting rod 11 is installed in the connecting pipe 22. The connecting rod 11 is provided with a threaded head 12 at the top, and the connecting pipe 22 is provided with a threaded groove 21 at the inside top. The threaded head 12 is connected with the threaded groove 21 in a threaded manner. The connecting rod 11 is fixed in the connecting pipe 22 by tightening the threaded head 12 in the threaded groove 21. The connecting pipe 22 is provided with a reinforcing assembly on one side of the outside. The reinforcing assembly comprises a screw port 25. The screw port 25 is provided with a bolt 45 inside. The bolt 45 is connected with the screw port 25 in a threaded manner. The bolt 45 is provided with a second fixing bolt 5. The connecting rod 11 is provided with a second fixing port 14 on one side. The second fixing bolt 5 is disassembled on the second fixing port 14, that is, the bolt 45 is rotated in the screw port 25, so that the second fixing bolt 5 is inserted into the second fixing port 14, thereby achieving the effect of reinforcing the fixation.

[0025] The connecting pipe 22 is provided with a mounting groove 23 on both sides, the mounting groove 23 is a mounting structure, the mounting groove 23 is provided with a fixing assembly inside, the fixing assembly is used for fixing the connection of the connecting rod 11 and the connecting pipe 22, the fixing assembly includes a first fixing bolt 3, the connecting rod 11 is provided with a first fixing port 13 on both sides, the first fixing bolt 3 is disassembled in the first fixing port 13, the rear side of the first fixing bolt 3 is provided with a spring 33, the spring 33 is connected to the rear side inside the mounting groove 23, when the drill bit is installed, the first fixing bolt 3 is butt jointed with the first fixing port 13, that is, the first fixing bolt 3 is pushed by the spring 33, so that the first fixing bolt 3 is inserted into the first fixing port 13, so as to achieve the effect of fixing, avoid the drill bit loose, the first fixing bolt 3 is provided with a limiting block 31 on both sides, the limiting track 32 is provided on both sides inside the mounting groove 23, the limiting block 31 and the limiting track 32 are in sliding connection, that is, the limiting block 31 is limited by the limiting track 32, so that the first fixing bolt 3 keeps stable when sliding.

[0026] The mounting groove 23 is provided with a sliding port 24 outside, the sliding port 24 is provided with a pull rod 4 inside, the pull rod 4 is provided with a movable bolt 43 on the top, the first fixing bolt 3 is provided with a movable port 34 on the rear inside, the movable bolt 43 and the movable port 34 are in movable connection, that is, the movable bolt 43 is clamped in the movable port 34 and rotates, so that the pull rod 4 connects the first fixing bolt 3 and rotates in the sliding port 24, the pull rod 4 is provided with a clamping block 41, the sliding port 24 is provided with a clamping ring 44 inside, the clamping ring 44 is provided with a through slot 42 inside, the clamping block 41 passes through the through slot 42, and the clamping block 41 is movable in the clamping ring 44, that is, the first fixing bolt 3 is pulled by the pull rod 4, so that the first fixing bolt 3 enters the mounting groove 23, the clamping block 41 is butt jointed and passes through the through slot 42 by rotating the pull rod 4, and enters the clamping ring 44, then the clamping block 41 is clamped in the clamping ring 44 by rotating the pull rod 4, so that the first fixing bolt 3 is fixed in the mounting groove 23, which is convenient for disassembling the connecting rod 11, and after the connecting rod 11 is installed, the clamping block 41 can be rotated to the through slot 42 by rotating the pull rod 4, that is, the spring 33 is rebounded, so as to achieve the effect of fixing.

[0027] The working principle of the utility model is: through installing connecting rod 11 in connecting pipe 22, through pull rod 4 to pull first fixed peg 3, so that first fixed peg 3 enters installation groove 23, through rotating pull rod 4, make the abutment of clamping block 41 and pass through slot 42, and enter into snap ring 44, rotate pull rod 4 again, make clamping block 41 be clamped in snap ring 44, so that first fixed peg 3 is fixed in installation groove 23, through the screwing of threaded head 12 in threaded groove 21, so that connecting rod 11 is fixed in connecting pipe 22, after installing connecting rod 11, through rotating pull rod 4, clamping block 41 is rotated to slot 42, namely through spring 33 to push first fixed peg 3, so that first fixed peg 3 is inserted into first fixed port 13, so as to reach the effect of fixing, avoid drill bit loosening, through limiting rail 32 to limit limiting block 31, so that first fixed peg 3 keeps stable when sliding, through bolt 45 in screw port 25 rotation, so that second fixed peg 5 is inserted into second fixed port 14, so as to play the effect of reinforcing fixing.

[0028] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A cobalt-containing twist drill bit with good wear resistance coating, comprising a drill bit body (1) and a mounting base (2), characterized in that: The drill bit body (1) is provided with a connecting rod (11) at the top and a connecting pipe (22) at the bottom of the mounting base (2). The connecting rod (11) is installed in the connecting pipe (22). The connecting rod (11) is provided with a threaded head (12) at the top and a threaded groove (21) is provided on the top of the inner side of the connecting pipe (22). The threaded head (12) and the threaded groove (21) are threadedly connected. The connecting pipe (22) is provided with mounting grooves (23) on both sides. A fixing component is provided inside the mounting groove (23). The fixing component is used to fix the connection between the connecting rod (11) and the connecting pipe (22). The fixing component includes a first fixing bolt (3). The connecting rod (11) is provided with a first fixing port (13) on both sides. The first fixing bolt (3) is installed and removed in the first fixing port (13). A reinforcing component is provided on the outer side of the connecting pipe (22).

2. The cobalt-containing twist drill bit with good wear resistance coating according to claim 1, characterized in that, A spring (33) is provided on the rear side of the first fixing bolt (3), and the spring (33) is connected to the rear side of the inside of the mounting groove (23).

3. The cobalt-containing twist drill bit with good wear resistance coating according to claim 1, characterized in that, Limiting blocks (31) are provided on both sides of the first fixing bolt (3), and limiting rails (32) are provided on both sides inside the mounting groove (23). The limiting blocks (31) and the limiting rails (32) are slidably connected.

4. The cobalt-containing twist drill bit with good wear resistance coating according to claim 1, characterized in that, A sliding opening (24) is provided on the outside of the mounting groove (23), and a pull rod (4) is slidably provided inside the sliding opening (24).

5. A cobalt-containing twist drill bit with good wear resistance coating according to claim 4, characterized in that, The top of the pull rod (4) is provided with a movable bolt (43), and the inner side of the first fixed bolt (3) is provided with a movable port (34). The movable bolt (43) and the movable port (34) are movably connected.

6. A cobalt-containing twist drill bit with good wear resistance coating according to claim 4, characterized in that, The pull rod (4) is provided with a locking block (41), the inner side of the slide (24) is provided with a retaining ring (44), the inner side of the retaining ring (44) is provided with a through groove (42), the locking block (41) passes through the through groove (42), and the locking block (41) moves in the retaining ring (44).

7. A cobalt-containing twist drill bit with good wear resistance coating according to claim 1, characterized in that, The reinforcing component includes a threaded opening (25), and a bolt (45) is provided inside the threaded opening (25). The bolt (45) is threadedly connected to the threaded opening (25).

8. A cobalt-containing twist drill bit with good wear resistance coating according to claim 7, characterized in that, The bolt (45) is provided with a second fixing bolt (5), and the connecting rod (11) is provided with a second fixing port (14) on one side. The second fixing bolt (5) is installed and removed from the second fixing port (14).

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