CN213764140U - Anti-skid micro drill bit - Google Patents

Abstract

The utility model relates to a drill bit technical field just discloses an antiskid microbit, including drill bit, connection handle and cutting edge, the outer wall of connection handle is provided with the external screw thread, the connection handle is provided with fixed spiro through the external screw thread, the fixed two elastic telescopic rod that are equipped with of left side wall symmetry of fixed spiro, two elastic telescopic rod's left end all is equipped with the holding ring, the ring channel has been seted up to the right side wall of holding ring, and the fixed antifriction bearing that is equipped with of inside wall of ring channel, the fixed swivel becket that is equipped with of antifriction bearing's circumference wall, two elastic telescopic rod's left end all with the right side wall fixed connection of swivel becket. The utility model discloses antiskid, location effect are better, have guaranteed the drilling quality of work piece.

Description

Anti-skid micro drill bit

Technical Field

The utility model relates to a drill bit technical field especially relates to an antiskid microbit.

Background

With the rapid development of science and technology and products, the demand of micro-drills is increasing year by year, and the requirements on carbide drills are increasing due to the continuous appearance of novel micro-drills.

At present, the micro-drill is easy to slip when in use, particularly when meeting a workpiece with high strength, once the micro-drill slips, scratches are left on the surface of the workpiece, the smoothness of the surface of the workpiece is influenced, and the manufacturing cost of the workpiece is increased. Therefore, the utility model provides an antiskid microbit.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the micro drill bit is easy to slip and affects the quality of the workpiece in the prior art, and providing an anti-slip micro drill bit.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an antiskid microbit, includes drill bit, connection handle and cutting edge, the outer wall of connection handle is provided with the external screw thread, the connection handle is provided with fixed spiro through the external screw thread, the fixed two elastic telescopic rod that are equipped with of left side wall symmetry of fixed spiro, two elastic telescopic rod's left end all is equipped with the holding ring, the ring channel has been seted up to the right side wall of holding ring, and the fixed antifriction bearing that is equipped with of inside wall of ring channel, antifriction bearing's the fixed swivel becket, two of being equipped with of circumference wall elastic telescopic rod's left end all with the right side wall fixed connection of swivel becket.

Preferably, the elastic telescopic rod comprises a sleeve, a moving rod and a spring, the sleeve is fixedly arranged on the side wall of the fixed spiral ring, the moving rod is fixedly arranged on the side wall of the rotating ring, and the moving rod is slidably arranged in the sleeve and is fixedly connected with the inner side wall of the sleeve through the spring.

Preferably, the left side wall of the positioning ring is fixedly provided with an anti-skid rubber ring.

Preferably, the circumferential wall of the fixing spiral ring is provided with anti-skid lines.

Preferably, the drill bit is disposed through an interior of the retaining ring.

Preferably, the fixed spiral ring, the elastic telescopic rod, the positioning ring and the rotating ring are all made of hard alloy materials.

Compared with the prior art, the utility model provides an antiskid microbit possesses following beneficial effect:

1. the anti-slip micro drill bit comprises a fixed spiral ring, an elastic telescopic rod, a positioning ring, a rolling bearing and a rotating ring, wherein the fixed spiral ring is fixed on the outer wall of a connecting handle through external threads when a workpiece needs to be drilled, the positioning ring is sleeved at the end part of a drill bit and then tightly pressed against the surface of the workpiece, a positioning and aligning effect can be provided for the drill bit, when the drill bit is pressed down to be in contact with the surface of the workpiece, the external force between the positioning ring and the surface of the workpiece is gradually increased, so that the drill bit does not slip on the surface of the workpiece, the drill bit is opened to rotate and the position of a preset hole is drilled on the surface of the workpiece, when the drill bit drills the preset hole, the elastic telescopic rod can be extruded, so that the feeding amount of the drill bit can be ensured, and finally, a worker can rapidly disassemble the fixed spiral ring from the connecting handle after the preset hole is drilled, and then the drill bit is inserted into the position of the preset hole.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses antiskid, location effect are better, have guaranteed the drilling quality of work piece.

Drawings

FIG. 1 is a schematic structural view of an anti-slip microbit according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic structural view of the elastic telescopic rod in fig. 1.

In the figure: the drilling tool comprises a drilling bit 1, a connecting handle 2, a cutting edge 3, an external thread 4, a fixed spiral ring 5, an elastic telescopic rod 6, a positioning ring 7, a rolling bearing 8, a rotating ring 9, a sleeve 10, a movable rod 11, a spring 12 and an anti-skid rubber ring 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, an anti-skidding microbit comprises a drill bit 1, a connecting handle 2 and a cutting edge 3, the outer wall of the connecting handle 2 is provided with an external thread 4, the connecting handle 2 is provided with a fixed spiral ring 5 through the external thread 4, two elastic telescopic rods 6 are symmetrically and fixedly arranged on the left side wall of the fixed spiral ring 5, the left ends of the two elastic telescopic rods 6 are respectively provided with a positioning ring 7, the drill bit 1 can penetrate through the internal arrangement of the positioning ring 7, the right side wall of the positioning ring 7 is provided with an annular groove, the inner side wall of the annular groove is fixedly provided with a rolling bearing 8, the circumferential wall of the rolling bearing 8 is fixedly provided with a rotating ring 9, and the left ends of the two elastic telescopic rods 6 are fixedly connected with the right side wall of the rotating ring 9.

The elastic telescopic rod 6 comprises a sleeve 10, a moving rod 11 and a spring 12, the sleeve 10 is fixedly arranged on the side wall of the fixed spiral ring 5, the moving rod 11 is fixedly arranged on the side wall of the rotating ring 9, the moving rod 11 is slidably arranged in the sleeve 10 and fixedly connected with the inner side wall of the sleeve 10 through the spring 12, when the positioning ring 7 is extruded, the moving rod 11 can contract into the sleeve 10 and extrude the spring 12, and therefore feeding amount for drilling a preset hole can be provided for the drill bit 1.

The left side wall of the positioning ring 7 is fixedly provided with an anti-slip rubber ring 13, so that the friction resistance between the positioning ring 7 and the surface of a workpiece can be increased, and the phenomenon that the positioning ring 7 slides cannot occur is guaranteed.

The circumferential wall of the fixed spiral ring 5 is provided with anti-skid lines, so that the fixed spiral ring 5 can be conveniently screwed and disassembled by the hands of workers.

The fixed spiral ring 5, the elastic telescopic rod 6, the positioning ring 7 and the rotating ring 9 are all made of hard alloy materials, and the use strength of the fixed spiral ring 5, the elastic telescopic rod 6, the positioning ring 7 and the rotating ring 9 is guaranteed.

In the utility model, when a workpiece needs to be drilled, the fixed spiral ring 5 is fixed on the outer wall of the connecting handle 2 through the external thread 4, meanwhile, the positioning ring 7 is also sleeved at the end part of the drill bit 1, then the positioning ring 7 is tightly propped against the surface of the workpiece, at the moment, the positioning ring 7 can provide a positioning and aligning effect for the drill bit 1 to the surface position of the workpiece, when the drill bit 1 is pressed down to be in contact with the surface of the workpiece, because the external force between the positioning ring 7 and the surface of the workpiece is gradually increased, the phenomenon that the drill bit 1 slips when in contact with the surface of the workpiece can not occur, then the drill bit 1 is opened to rotate and the position of the preset hole is punched on the surface of the workpiece, when the drill bit 1 is punched to move downwards in the preset hole, the elastic telescopic rod 6 can be extruded and contracted, thereby the feeding amount of the drill bit 1 can be ensured, after the preset hole is punched, a worker can rapidly disassemble the fixed spiral ring 5 from the connecting handle 1, at the same time, the positioning ring 7 is also removed, and the drill bit 1 is reinserted into the predetermined drilled hole.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides an antiskid microbit, includes drill bit (1), connection handle (2) and cutting edge (3), its characterized in that, the outer wall of connection handle (2) is provided with external screw thread (4), connection handle (2) are provided with fixed spiro (5) through external screw thread (4) screw thread, the left side wall symmetry of fixed spiro (5) is fixed and is equipped with two elastic telescopic rod (6), two the left end of elastic telescopic rod (6) all is equipped with holding ring (7), the ring channel has been seted up to the right side wall of holding ring (7), and the inside wall of ring channel is fixed and is equipped with antifriction bearing (8), the fixed swivel becket (9) that is equipped with of circumferential wall of antifriction bearing (8), two the left end of elastic telescopic rod (6) all with the right side wall fixed connection of swivel becket (9).

2. The anti-skid micro drill bit as claimed in claim 1, characterized in that the elastic telescopic rod (6) comprises a sleeve (10), a moving rod (11) and a spring (12), the sleeve (10) is fixedly arranged on the side wall of the fixed spiral ring (5), the moving rod (11) is fixedly arranged on the side wall of the rotating ring (9), and the moving rod (11) is slidably arranged inside the sleeve (10) and is fixedly connected with the inner side wall of the sleeve (10) through the spring (12).

3. Anti-slip micro drill according to claim 1, characterized in that the left side wall of the positioning ring (7) is fixedly provided with an anti-slip rubber ring (13).

4. The anti-slip microbit according to claim 1, characterized in that the circumferential wall of the fixing screw ring (5) is provided with anti-slip threads.

5. Anti-skid micro drill according to claim 1, characterized in that the drill bit (1) is arranged through the inside of the positioning ring (7).

6. The anti-slip micro drill according to claim 1, wherein the fixed spiral ring (5), the elastic telescopic rod (6), the positioning ring (7) and the rotating ring (9) are made of hard alloy materials.

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