CN212822928U - Automatic locking antiskid twist drill - Google Patents

Abstract

The utility model discloses an automatic locking antiskid twist drill, including the drillstock, the one end fixed mounting of drillstock has the drill bit, the inside fixed mounting of drillstock has the connecting rod, the peripheral cover of connecting rod is equipped with the spring, the one end fixed mounting of spring has the fixed plate, the fixed surface of fixed plate installs the sucking disc. The utility model discloses, back in the recess of seting up in the drill chuck installation to the rig output, through the effect of spring self elasticity, promote the fixed plate and make the sucking disc compression, adsorb to the lateral wall of rig output recess on, realize automatic locking and skid-proof effect.

Description

Automatic locking antiskid twist drill

Technical Field

The utility model relates to a drill bit technical field specifically is an automatic locking antiskid fluted drill.

Background

Twist drills are tools that drill round holes in a workpiece by rotary cutting thereof about a fixed axis. The flute is spiral and shaped like twist.

The diameter of the twist drill is limited by the aperture, the spiral groove enables the drill core to be thinner, and the rigidity of the drill bit is low; only two edge belts are used for guiding, and the axis of the hole is easy to deflect; the chisel edge makes centering difficult, axial resistance is increased, and the drill bit is easy to swing. Therefore, the errors in the form and position of the drilled hole are large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic locking antiskid fluted drill to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automatic locking antiskid twist drill, includes the drillstock, the one end fixed mounting of drillstock has the drill bit, the inside fixed mounting of drillstock has the connecting rod, the peripheral cover of connecting rod is equipped with the spring, the one end fixed mounting of spring has the fixed plate, the fixed surface of fixed plate installs the sucking disc.

Preferably, the drill shank is combined with the drill bit in an integrally formed manner.

Preferably, the drill handle is hexagonal frustum pyramid-shaped, and through holes matched with the fixing plate are formed in the six side faces of the drill handle.

Preferably, the fixing plate is internally provided with a groove, and the position and the size of the groove are matched with the size of the connecting rod.

Preferably, the drill bit is internally provided with a spiral groove.

Preferably, the number of the suction cups is three, and the three suction cups are arranged on the outer surface of the fixing plate in a straight line and in an equidistant arrangement manner.

Compared with the prior art, the beneficial effects of the utility model are that: this automatic locking antiskid twist drill, back in the recess of seting up in the drill output is installed to the driller's handle, through the effect of spring self elasticity, promote the fixed plate and make the sucking disc compression, adsorb to the lateral wall of drill output recess on, realize automatic locking and skid-proof effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the drill shank of the present invention;

fig. 3 is a schematic top view of the drill shank structure of the present invention.

In the figure: 1 drill handle, 2 drill bits, 3 connecting rods, 4 springs, 5 fixing plates and 6 suckers.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides an automatic locking antiskid twist drill, including drillstock 1, drillstock 1 makes up with drill bit 2 with integrated into one piece's mode, the one end fixed mounting of drillstock 1 has drill bit 2, spiral helicine recess has been seted up to the inside of drill bit 2, the inside fixed mounting of drillstock 1 has connecting rod 3, the peripheral cover of connecting rod 3 is equipped with spring 4, the one end fixed mounting of spring 4 has fixed plate 5, the shape of drillstock 1 is hexagonal terrace shape, the through-hole with 5 looks adaptations of fixed plate is all seted up to the inside of 1 six sides of drillstock, the recess of position and size and 3 size looks adaptations of connecting rod is seted up to the inside of fixed plate 5, the fixed surface of fixed plate 5 installs sucking disc 6, the quantity of sucking disc 6 is three, three sucking disc 6 is the straight line and sets up on the surface of fixed plate 5.

The working principle is as follows: when the automatic locking and anti-skidding drill handle is used, after the drill handle 1 is installed in a groove formed in the output end of a drilling machine, the fixing plate 5 is pushed and the sucker 6 is compressed under the action of the elastic force of the spring 4, and is adsorbed to the side wall of the groove of the output end of the drilling machine, so that the automatic locking and anti-skidding effects are achieved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or scope of the present invention. Accordingly, the embodiments of the present invention are exemplary, and not limiting. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides an automatic locking antiskid twist drill, includes drillstock (1), its characterized in that: the drill bit is characterized in that a drill bit (2) is fixedly mounted at one end of the drill handle (1), a connecting rod (3) is fixedly mounted inside the drill handle (1), a spring (4) is sleeved on the periphery of the connecting rod (3), a fixing plate (5) is fixedly mounted at one end of the spring (4), and a sucker (6) is fixedly mounted on the outer surface of the fixing plate (5).

2. An automatic locking anti-slip twist drill according to claim 1, wherein: the drill handle (1) and the drill bit (2) are combined in an integrated forming mode.

3. An automatic locking anti-slip twist drill according to claim 1, wherein: the drill handle is characterized in that the drill handle (1) is in a hexagonal frustum pyramid shape, and through holes matched with the fixing plate (5) are formed in the six side faces of the drill handle (1).

4. An automatic locking anti-slip twist drill according to claim 1, wherein: the fixing plate (5) is internally provided with a groove with the position and the size matched with those of the connecting rod (3).

5. An automatic locking anti-slip twist drill according to claim 1, wherein: the drill bit (2) is internally provided with a spiral groove.

6. An automatic locking anti-slip twist drill according to claim 1, wherein: the quantity of sucking disc (6) is three, three sucking disc (6) are the straight line and set up on the surface of fixed plate (5) with the form that the equidistance was arranged.

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