CN201147953Y

CN201147953Y - Multi-edge multi-auger bit reinforced structure

Info

Publication number: CN201147953Y
Application number: CNU2007201814924U
Authority: CN
Inventors: 廖忠梁; 廖忠宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-06
Filing date: 2007-12-06
Publication date: 2008-11-12
Anticipated expiration: 2017-12-06

Abstract

The utility model provides a multi-blade and multi-worm bit reinforced structure. Each of the worm bits of the multi-blade and multi-worm bit reinforced structure consists of a cutting body and a front guide screw. The cutting body is spiral and provided with at least four spiral grooves. The circumference of each of the spiral grooves is provided with a cutting part. A blade part is formed at the lead angle of the cutting face on the front end of the cutting part. A massive part made of hard steel is additionally welded to the front end of the cutting body. The front guide screw is arranged in the center of the front end of the cutting body, and is provided with pyramidal drilled hole thread. In this way, when the multi-blade and multi-worm bit reinforced structure is used, the blade part can improve the strength of the cutting face, and the massive part can improve the support strength and improve the torsion. Accordingly, the multi-blade and multi-worm bit reinforced structure is formed. The entire multi-blade and multi-worm bit reinforced structure is practical for the industry and has innovative benefit.

Description

Many augers of multiple-cutting-edge reinforced structure

Technical field

The utility model relates to a kind of solid center bit.

Background technology

General wood materials all need be through scraping, dig, saw, cut or boring etc. processed operation, row assembling back is to be shaped to designed product again, therefore as shown in Figure 5, front three-dimensional appearance schematic diagram for existing solid center bit, described solid center bit 30 is to include a main cutting portion 31, one cutting guidance part 32 reaches, be provided with a tip 33 at four side peripheries, when boring, be to utilize described cutting guidance part 32 on default timber, to bore one earlier than small holes, with smooth-going guiding as the cutting initial stage, after treating that it pierces the timber top layer smoothly, utilize described most advanced and sophisticated 33 down-cuttings of taking advantage of a situation again, carry out most cutting operation with described main cutting portion 31 at last, thereby can reach the cutting boring function of described solid center bit 3.

Yet the tip of its main cutting portion front end four side peripheries of above-mentioned existing solid center bit is to be a pointed cone end face, and this can cause overall construction intensity not good.The nails that described tip is touched in the timber when general bore operation to be hidden easily etc. are thing firmly, make described most advanced and sophisticated fracture damage, and then influence the boring job schedule of described solid center bit, cause described solid center bit limited on the effective utilization and use cost on waste.

The utility model designer is because the existing deficiency of above-mentioned existing solid center bit, the utility model spirit that this is studied and work with perseverance in concentrated improvement, finally utility model goes out a kind of many spiral grooves of multiple-cutting-edge drill bit reinforced structure, so that the structure of solid center bit more is tending towards perfect.

Summary of the invention

Be with, the purpose of this utility model is: a kind of many augers of multiple-cutting-edge reinforced structure is provided, can be shaped to one spiral-shaped by cutting portion itself, and the confluce that is engaged in cutting portion and cutting face is provided with chamfering, form the blade at the similar obtuse angle of a tool, can increase the intensity in cutting face, cause that most advanced and sophisticated hard thing is blunt frustrates fracture because of being cut to when avoiding drill bit moment to pierce timber; And the material of main cutting portion leading portion is the harder steel that weld in addition, and these hard steel form an abundant portion to increase the torsion and the center intensity of drill bit, and it also can reduce spiral angle, to increase boring strength.Rely on upper member and form, but many spiral grooves of multiple-cutting-edge drill bit of formation one reinforced structure can promote drilling life of bit, so that whole really tool industrial applicability and cost-benefit purpose.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of many augers of multiple-cutting-edge reinforced structure is characterized in that, comprising:

One cutting body, its end segment is to be clamped on the base of tool of drilling machine, and its front end rigion is to be formed with a spiral helicine cutting portion, and form a blade in cutting portion front end cutting face chamfering;

One guidance part is the front end place that is positioned at cutting body, and front end rigion is to be provided with a tapered brill tooth portion, can directly wood surface being carried out preposition bore operation.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:

1. reinforced structure: because its cutting face front end lead angle of the many Wood working screw augers of the utility model multiple-cutting-edge forms blade design, can provide the reinforced structure of drill bit, the cutting face is cut to rupture the easily deficiency of damage of hard thing when avoiding holing.

2. can improve center intensity: because its cutting portion front end rigion of the many Wood working screw augers of the utility model multiple-cutting-edge is the abundant portion of welding in addition, can improve the support force and the torsion of drill bit, can reach the effect of reinforced structure equally.

3. can improve drill bit intensity:, so can improve the center intensity and boring strength of drill bit owing to the angle of the many Wood working screw augers of the utility model multiple-cutting-edge with spire reduces.

4. cost-effective: because the design of the reinforced structure of the many Wood working screw augers of the utility model multiple-cutting-edge, the damage of drill bit in the time of can avoiding holing is so can improve drilling life of bit, true attainable cost benefit.

Description of drawings

Fig. 1 is a three-dimensional appearance schematic diagram of the present utility model;

Fig. 2 is a front of the present utility model three-dimensional appearance schematic diagram;

Fig. 3 is a vertical view of the present utility model;

Fig. 4 is an embodiment schematic diagram of the present utility model;

Fig. 5 is the front three-dimensional appearance schematic diagram of existing solid center bit.

Description of reference numerals: 1-cutting body; 11-spiral goove slot part; The 12-cutting portion; The 13-cutting face; The 14-blade; The 2-guidance part; The 21-bore screw; θ-spiral angle; A-timber; The hard thing of B-nail class; The 30-solid center bit; The 31-cutting portion; 32-cuts guidance part; The 33-tip.

The specific embodiment

Remainder cooperates the graphic specific embodiment of enumerating now, describes content of the present utility model and details in detail as back:

As Fig. 1, shown in Figure 2, be respectively three-dimensional appearance schematic diagram of the present utility model, front three-dimensional appearance schematic diagram, thus two figure as can be known the utility model comprise: one the cutting body 1, be that clamping is on the base of tool of a drilling machine, have spiral helicine at least four spiral goove slot parts 11, be provided with a cutting part 12 at described spiral goove slot part 11 peripheries, and be provided with a cutting face 13 at described cutting portion 12 front ends, form a blade 14 in described cutting face 13 with described cutting portion 12 confluces in addition, cutting body 1 front end is welded with harder iron and steel material quality in addition to form one abundant 15; And a guidance part 2, be to be positioned at described cutting body 1 front end center, have the bore screw 21 of taper; Many augers of multiple-cutting-edge reinforced structure of one tool timber feeding boring so, can be provided.

Aforesaid spiral goove slot part 11, the spiral angle θ of itself is less than 30 °, makes drill bit when the feeding bore operation, can increase boring strength according to this.

Aforesaid cutting portion 12 itself is inwardly to be shaped to spiral goove slot part 11, and its cutting portion leading portion material is the harder steel that weld in addition, the support force of described cutting portion 12 can be provided and promote cutting torsion.

Aforesaid cutting face 13, it is the blade 14 that slightly is passivation with described cutting portion 12 intersections formation one, make described cutting face 13 can thicken the formation strengthening effect, touch the hard thing B of nail class (can with reference to as shown in Figure 4) when the boring and be easy to the disappearance that ruptures and damage with the sharp-pointed face that improves existing its tip 33 of solid center bit 3 (please refer to Fig. 5); Described in addition spiral helicine abundant 15 is the firm steel that weld in addition, and the support force and the cutting torsion of cutting portion 12 can be provided, and strengthens bit central intensity.

As shown in Figure 3, be vertical view of the present utility model: as can be known by this figure, the aforesaid blade 14 that slightly is passivation makes the intensity in described cutting face 13 to increase fully for strengthening one of drill bit structure institute employing means, therefore can deal with abominable feeding bore operation.

As shown in Figure 4, be embodiment schematic diagram of the present utility model: as can be known by this figure, cutting body 1 of the present utility model is to utilize guidance part 2 embeddings of the bore screw 21 with taper to fix on the timber A to cut, so that further guide cuts portion 12 carries out main cutting bore operation; On the other hand, because general the recovery among the timber A that uses, may be implied with previous assembling processing industry the residual hard thing B of nail class, thereby can be by the design of blade 14 with abundant 15, cooperate cutting portion 12 simultaneously, increase overall construction intensity according to this, make described guidance part 2 and described cutting portion 12 can directly cut when in a single day meeting the hard thing B of nail class and pass, therefore there is no the thing of damaging drill bit structure and take place.

Rely on and form with upper member, as shown in Figures 1 to 4, its cutting face 13 of many augers of multiple-cutting-edge reinforced structure of the present utility model forms a blade 14 with cutting portion 12 confluces, and described cutting body front end is abundant 15 the structural design of welding in addition, can strengthen drill bit structure, make drill bit be unlikely to because of touching the damage of rupturing of the hard thing of nail class in the old timber, thus drill bit consume cost can significantly be reduced, so that integral body has industrial applicability and economic benefit.

In sum, the utility model and existing solid center bit are compared, and provide a kind of in cutting face and cutting The section confluce forms a blade, makes its intensity that can increase described cutting face, and relies on abundant and cutting The cooperation of section increases overall construction intensity, so when the feeding drilling operation, so that guidance part and cutting portion The hard thing of nail class that passes in the timber can be directly cut, thereby the service life of drill bit can be promoted.

More than explanation is just illustrative for the utility model, and nonrestrictive, the common skill in this area Art personnel understand, and in the situation that does not break away from the spirit and scope that claim limits, can make many repairing Change, change or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1. many augers of multiple-cutting-edge reinforced structure is characterized in that, comprising:

2. many augers of multiple-cutting-edge reinforced structure according to claim 1 is characterized in that: the spiral helicine front end rigion of described cutting portion place is formed with an abundant portion, and this abundant portion is the hard steel that are welded in addition on the cutting body.

3. many augers of multiple-cutting-edge reinforced structure according to claim 1, it is characterized in that: described cutting body has spiral helicine at least four spiral goove slot parts, be provided with described cutting portion at described spiral goove slot part periphery, the spiral angle of described spiral goove slot part itself is less than 30 degree.