CN104001961A - Drilling device - Google Patents

Abstract

The invention belongs to the field of a drill. In order to overcome a problem of the prior art that a plurality of holes with relatively small space intervals cannot be drilled simultaneously, the invention discloses a drilling device capable of simultaneously drilling the holes with small space intervals. In order to achieve a purpose of the invention, a technical solution adopted by the invention is as follows: the drilling device comprises a shell, wherein the shell has an inflow hole and an outflow hole; more than two fixed shaft covers are fixedly connected to the upper surface of the inside of the shell; a fixed shaft base is correspondingly arranged below the fixed shaft covers; the fixed shaft base is fixedly connected to the lower surface of the inside of the shell; the drilling device further comprises more than two drills; the upper portions of the drills are embedded into the fixed shaft covers; a rotation axis of each drill, and an axis determined by the fixed shaft covers and the fixed shaft base are the same axis; a cutting portion of each drill passes through the fixed shaft base and is located outside the shell; the drills are further fixedly connected with vanes; the vanes are placed inside the shell and positioned between the fixed shaft covers and the fixed shaft base. The drilling device disclosed by the invention has the advantage of being simple in structure.

Description

Drill unit

Technical field

The invention belongs to drill bit field, the drill bit field of especially can a plurality of drill bits simultaneously working.

Background technology

In prior art, can run into unavoidably such Drilling operation requires: need to bore a plurality of holes toward material to be processed, and these pitchs of holes are smaller.Such processing request, if process with an electric drill, the brill in hole bothers very much one by one.Why not a lot of electric drills simply can be bundled into together and then bore simultaneously? because the spacing in these holes is smaller, and the retaining part volume of electric drill is larger, even a plurality of electric drills are simply bundled into together, the spacing of boring is still too large, cannot meet the Drilling operation requirement that spacing is less.

Bore the hole that a plurality of spacing are less, it is widely used, can be for food processing, part processing, automobile processing, plastic processing, circuit board processing, denomination of invention of the present invention also can change to: for the drill unit of processing food, or: for the drill unit of processing equipment parts, or: for the drill unit of automobile making, or: for the drill unit of processing plastic, or: for drill unit of processing circuit board etc.

Summary of the invention

In order to overcome prior art, cannot bore a plurality of spacing compared with the deficiency of aperture, the present invention proposes a kind of drill unit simultaneously, and this drill unit can bore a plurality of holes simultaneously, and can be with little spacing boring.

The present invention is in order to realize goal of the invention, and the technical scheme of taking is such:

1, drill unit, comprises housing 1, it is characterized in that: housing 1 has flow-in hole 41 and flow-out hole 42, the upper surface in housing 1 inside is fixedly connected with plural dead axle lid 21, dead axle cover 21 belows also correspondence be provided with dead axle seat 22, and dead axle seat 22 is fixedly connected on the lower surface of housing 1 inside

Also comprise plural drill bit 31, the top of drill bit 31 embeds dead axle lid 21, and drill bit 31 rotations and dead axle lid 21, dead axle seat 22 the two determined axis are same axis, the cutting portion of drill bit 31 passes dead axle seat 22 and is positioned at the outside of housing 1, drill bit 31 is also fixedly connected with blade 3, the position of blade 3 is in housing 1 inside, and the position of blade 3 is between dead axle lid 21 and dead axle seat 22.

2, the quantity of described dead axle lid 21, dead axle seat 22, drill bit 31 is more than three.

3, described housing 1 is formed by connecting by upper shell 11 and lower house 12, and the connected mode of upper shell 11 and lower house 12 is to removably connect.

4, described blade 3 is fixedly connected on drill bit 31 by a plurality of rectangular flats and forms, and rectangular flat place plane and drill bit 31 peripheries tangent.

5, the present invention also comprises that the cross section of shielding plate 23 is circular arc for blocking the shielding plate 23 of blade 3, and shielding plate 23 is positioned at blade 3 peripheries, and shielding plate 23 is connected to the lower surface of housing 1 inside.

6, the present invention also comprises obstruction dead axle seat 22, the stopper 13 for stoping housing 1 to leak gas.

7, drill bit 31 of the present invention is also provided with annular groove 41, also comprises the driving-belt 4 that is sheathed on groove 41, and groove 41 is between dead axle lid 21 and blade 3.

8, the present invention also comprises push rod 42, and push rod is between dead axle lid 21 and dead axle seat 22, and push rod 42 is provided with annular groove 41.

9, the present invention also comprises the auxiliary shell 5 that is arranged on housing 1 top, auxiliary shell 5 is fixedly connected with housing 1, and auxiliary shell 5 is provided with the second flow-in hole 52 and the second flow-out hole 53, also comprise: in auxiliary shell 5 inside, be provided with rotating rotation reinforcement bar 51, rotate reinforcement bar 51 and be provided with blade and annular groove, and blade is positioned at auxiliary shell 5 inside, rotate reinforcement bar 51 through housing 1 and extend to housing 1 inside, until rotate the annular groove of reinforcement bar 51, contacting with the driving-belt 4 in housing 1.

10, described rotation reinforcement bar 51 quantity are more than two.

11, the present invention can also be such: also comprise: motor 61, for the support 6 of fixed motor, motor 61 is positioned at housing 1 top, and motor 61 is fixedly connected with support 6, support 6 is above housing 1, and support 6 is fixedly connected with housing 1, and the axle of motor 61 is provided with annular groove, the axle of motor 61 extends to housing 1 inside, until the annular groove of motor 61 contacts with driving-belt 4.

12, further: the quantity of motor 61 is more than two.

13, also comprise for control motor 61 rotating speeds controller 7.

14, shielding plate 23 and housing 1 be for removably connecting, and shielding plate 23 is provided with a plurality of projections 231, and housing 1 inner surface is provided with a plurality of for engagement protrusion 231 and the cramping body 232 that can allow projection embed, cramping body 232 with circular distribution in blade 3 peripheries.

15, shielding plate 23 is also provided with a plurality of holes 233.The area in hole is 0.5 square millimeter------0.8 square millimeter.

16, hole 233 be shaped as rectangle, and the length in hole 233 is 1mm----1.2mm, wide is 0.5mm----0.6mm.

17, hole 233 spacing is in the horizontal direction 2mm----4mm.

The present invention can be used in combination the technical scheme that foregoing invention content is explained in the reasonable scope.

The present invention is simple in structure, is convenient to bore a plurality of closely spaced holes simultaneously, for increasing work efficiency, improve crudy, is useful.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment 1.

Fig. 2 is the structural representation of embodiment 2.

Fig. 3 is the partial structurtes schematic diagram of embodiment 3.

Fig. 4 is the structural representation of embodiment 4.

Fig. 5 is the structural representation of embodiment 5.

Fig. 6 is the structural representation of embodiment 6.

Fig. 7 is the structural representation of embodiment 7.

Fig. 8 is the structural representation of embodiment 7.

Fig. 9 is the structural representation of embodiment 7.

Figure 10 is the structural representation of embodiment 8.

Figure 11 is the structural representation of embodiment 8.

Figure 12 is the structural representation of embodiment 8.

Figure 13 is the structural representation of embodiment 9.

Figure 14 is the structural representation of embodiment 10.

Figure 15 is the structural representation of embodiment 11.

Figure 16 is the structural representation of embodiment 12.

Figure 17 is the structural representation of embodiment 13.

Figure 18 is the structural representation of embodiment 14.

Figure 19 is the partial structurtes schematic diagram of embodiment 14.

Figure 20 is the partial structurtes schematic diagram of embodiment 14.

Figure 21 is the partial structurtes schematic diagram of embodiment 14.

Figure 22 is the structural representation of embodiment 15.

Figure 23 is the structural representation of embodiment 16.

In figure: 1-housing, 21-dead axle lid, 22-dead axle seat, 3-blade, 31-drill bit, 41-flow-in hole, 42-flow-out hole, 4-driving-belt, 42-push rod, 5-assists shell, and 51-rotates reinforcement bar, 52-the second flow-in hole, 53-the second flow-out hole, 6-support, 61-motor, 7-controller, 23-shielding plate, 231-projection, 232-cramping body, 11-upper shell, 12-lower house, 233-hole, 13-stopper, 41-groove.

The specific embodiment

For simplicity, the orientation that orientation of the present invention (as upper and lower) all refers in figure to be explained.The upper part of drill bit 31 does not have drilling blade, and the lower part of drill bit 31 has drilling blade.

Embodiment 1.

Fig. 1 is the structural representation of embodiment 1.

Drill unit, comprises housing 1, it is characterized in that: housing 1 has flow-in hole 41 and flow-out hole 42, upper surface in housing 1 inside is fixedly connected with plural dead axle lid 21, dead axle covers 21 belows also to there being dead axle seat 22, and dead axle seat 22 is fixedly connected on the lower surface of housing 1 inside

Also comprise plural drill bit 31, the top of drill bit 31 embeds dead axle lid 21, and drill bit 31 rotations and dead axle lid 21, dead axle seat 22 the two determined axis are same axis, the cutting portion of drill bit 31 passes dead axle seat 22 and is positioned at the outside of housing 1, drill bit 31 is also fixedly connected with blade 3, the position of blade 3 is in housing 1 inside, and the position of blade 3 is between dead axle lid 21 and dead axle seat 22.

By flow-in hole 41 inflow gas or liquid, also can influent and the mixture of solid, impact blade 3, cause blade 3 rotations, thereby drive drill bit 31 rotations.Various equivalent modifications should be known, and the material of inflow flows out from flow-out hole 42.The top of drill bit 31: the upper part of drill bit 31 namely, also refers to that drill bit 31 is without that one end of drilling blade.

Various equivalent modifications should be known, and for increasing work efficiency, the material of inflow should have larger flow velocity.

Various equivalent modifications should be known, drill bit 31 and dead axle seat 22 should have good air-tightness, should have the device that restriction drill bit slides along axis between blade 3 and dead axle seat 22, otherwise, blade 3 rotations will rub with dead axle seat 22, cause blade 3 to damage.Such technology belongs to prior art.

Embodiment 2.

Fig. 2 is the structural representation of embodiment 2.The quantity of described dead axle lid 21, dead axle seat 22, drill bit 31 is more than three.So just a plurality of drill bit work simultaneously, and can allow drill bit spacing less.

Various equivalent modifications should be known, can be according to the arrange position of drill bit 31 of processing request.Such as certain shape of the pattern of wants, just drill bit 31 is arranged into corresponding shape.

Embodiment 3.

Fig. 3 is the partial structurtes schematic diagram of embodiment 3.Described housing 1 is formed by connecting by upper shell 11 and lower house 12, and the connected mode of upper shell 11 and lower house 12 is to removably connect.

Various equivalent modifications should be known and can connect upper shell 11 and lower house 12 with screw rod.Housing 1 of the present invention for dismountable reason is: be convenient to dismounting, drill bit is installed.

Embodiment 4.

Fig. 4 is the structural representation of embodiment 4, is top view.Described blade 3 is fixedly connected on drill bit 31 by a plurality of rectangular flats and forms, and rectangular flat place plane and drill bit 31 peripheries tangent.The benefit of design is like this: 1, during blade 3 rotation, can there is less resistance.2, easily determine the direction of rotating: aspect effect working (machining) efficiency and the quality of bit, with the blade 3 described in embodiment 4, can realize definite direction of rotation.

Embodiment 5.

Fig. 5 is the structural representation of embodiment 5, is top view.The present invention also comprises that the cross section of shielding plate 23 is circular arc for blocking the shielding plate 23 of blade 3, and shielding plate 23 is positioned at blade 3 peripheries.

The technique effect of design is like this: blade 3 is in rotation, and a part is subject to stream material and impacts the power applying, and another part is back rotated, and is subject to resistance.Resistance when reducing to rotate arranges shielding plate.In the place that does not have shielding plate 23 to block, there is stream material to blow blade, the position that has shielding plate 23 to block, the impact that stream material causes blade 3 is little.

Various equivalent modifications should be known: in order to determine blade 3 direction of rotation, shielding plate 23 should not go to block the power section that is subject to of blade.

Embodiment 6.

Fig. 6 is the structural representation of embodiment 6.The present invention also comprises obstruction dead axle seat 22, the stopper 13 for stoping housing 1 to leak gas.

Use drill unit of the present invention, because boring demand, sometimes do not need all drill bits 31 to be all installed to housing 1, at this time, dead axle seat 22 will leak gas (because dead axle seat 22 has the hole for allowing drill bit pass), in order to allow drill unit of the present invention can adapt to the boring needs of various shape, can be equipped with at least one stopper.That is to say: the present invention also comprises at least one obstruction dead axle seat 22, the stopper 13 for stoping housing 1 to leak gas.Various equivalent modifications should be known for air-tightness should adopt suitable material (such as rubber) and makes stopper 13.

Embodiment 7.

Fig. 7 is the structural representation of embodiment 7.There is a problem in the drill unit described in embodiment 1-6: because stream material cannot completely evenly apply strength in housing, so, the rotating speed of each drill bit may be different, rotating speed is different, cause two problems: 1, during hand-held drill unit of the present invention, boring direction easily warps tiltedly, easily causes broken drill.This problem can draw an analogy to explain: suppose stool to be put in the plane that soft or hard degree is different, stool is easily crooked.In the time of drilling processing, also there is similar problem.2, no matter be hand-held or machine clamp, there is such deficiency: whole efficiency declines, and supposes that some bits are very fast, and so, this drill bit is the duty of idle running many times, makes like this stream material consumed energy in housing 1.How to address this problem? can design like this: drill bit 31 of the present invention is also provided with annular groove 41, also comprise the driving-belt 4 that is sheathed on groove 41, and groove 41 is between dead axle lid 21 and blade 3.

Because there is driving-belt 4, so each drill bit 31 has reached identical rotating speed.

For the position of clearer explanation driving-belt 4, can be referring to Fig. 8 and Fig. 9.Fig. 9 is top view, for representing being in transmission connection of driving-belt 4 and annular groove.

Embodiment 8.

Figure 10 is the structural representation of embodiment 8, is top view.What Figure 10 showed is the not good enough driving-belt connected mode of a kind of connected mode: driving-belt 4 needs and groove 41 have enough large contact area, in three grooves that Figure 10 shows, obviously, there are two grooves 41 and driving-belt 4 to have larger contact area, also have a groove 41 and driving-belt to only have less contact area, like this, driving-belt is controlled the drill bit poor effect that contact area is less.How to address this problem? refer to Figure 11, Figure 11 is top view, can add a push rod 42, and the present invention also comprises push rod 42, and push rod is between dead axle lid 21 and dead axle seat 22, and push rod 42 is provided with annular groove 41.For the clear position that represents push rod, can also be referring to Figure 12.Push rod 42 is for changing the shape of driving-belt 4, so that the groove 41 of driving-belt 4 energy and drill bit forms larger contact area.

Seen this description, various equivalent modifications should be known, and push rod 42 also should play the sealing function to housing 1 at dead axle seat 22 places.Push rod 42 is not drill bit, still, the same in the position of the inner position of installing of housing 1 and drill bit 31: between dead axle lid 21 and dead axle seat 22.Various equivalent modifications should be known, and push rod 42 and drill bit should cover 21 with dead axle, dead axle seat 22 has good lubricated.

Embodiment 9.

Driving-belt 4 has been installed, has been caused again new problem: because volume of the present invention is little, so driving-belt 4 used is thinner, after under tension, deformation quantity is larger.In housing, drill bit is installed a fairly large number of time, just there is such problem: for instance, during without driving-belt, there is one to rotate drill bit (called after a drill bit) faster, have a drill bit (called after b drill bit) that rotation is slower, installed after driving-belt 4, a drill bit is just with larger power traction b drill bit, so driving-belt 4 is each through between ab drill bit, deformation that will be once larger.Because rotate comparatively fast, so the be stretched frequency of deformation of driving-belt 4 is very high, driving-belt 4 easily damages, and particularly when ab apart from each other, the impaired probability of driving-belt 4 increases greatly.How to address this problem? refer to Figure 13.The present invention also comprises the auxiliary shell 5 that is arranged on housing 1 top, auxiliary shell 5 is fixedly connected with housing 1, and auxiliary shell 5 is provided with the second flow-in hole 52 and the second flow-out hole 53, also comprise: in auxiliary shell 5 inside, be provided with rotating rotation reinforcement bar 51, rotate reinforcement bar 51 and be provided with blade and annular groove, and blade is positioned at auxiliary shell 5 inside, rotate reinforcement bar 51 through housing 1 and extend to housing 1 inside, until rotate the annular groove of reinforcement bar 51, contact with the driving-belt 4 in housing 1.Various equivalent modifications should be known, and should be air-tightness and connect between auxiliary shell 5 and housing 1.

The second flow-in hole 52 is inflow gas or liquid at a relatively high speed, or the mixture of liquid and solid, and stream material impacts the blade that rotates reinforcement bar 51, rotates reinforcement bar 51 and drive driving-belt.Rotating reinforcement bar 51, to be arranged between a drill bit described in the preceding paragraph and b drill bit be preferred version.

Also can say: rotate and when reinforcement bar 51 is arranged on without driving-belt, to rotate faster drill bit and to rotate between slower drill bit during without driving-belt.

Driving-belt 4 has had the drive of rotating reinforcement bar 51, is not easy to damage.It is better that this beneficial effect shows in a fairly large number of situation of drill bit.Although rotate reinforcement bar 51, itself can consume a little energy, generally, rotate reinforcement bar 51 and contribute to promote boring power of the present invention.

Embodiment 10.

Figure 14 is the structural representation of embodiment 10.Described rotation reinforcement bar 51 quantity are more than two.

Embodiment 11.

Figure 15 is the structural representation of embodiment 11.Reinforcement bar 51 need not be rotated, and also identical effect can be realized with motor.The present invention can also be such: also comprise: motor 61, for the support 6 of fixed motor, motor 61 is positioned at housing 1 top, and motor 61 is fixedly connected with support 6, support 6 is above housing 1, and support 6 is fixedly connected with housing 1, and the axle of motor 61 is provided with annular groove, the axle of motor 61 extends to housing 1 inside, until the annular groove of motor 61 contacts with driving-belt 4.

Various equivalent modifications should be known, and should rationally control motor speed.

Motor also contributes to promote boring power of the present invention.Because motor can be done positive work to driving-belt.

Embodiment 12.

Figure 16 is the structural representation of embodiment 12.Further: the quantity of motor 61 is more than two.

Embodiment 13.

Figure 17 is the structural representation of embodiment 13.When adopting motor 61 accessory drive bands to rotate, adopting controller is reasonable selection.Especially housing 1 is interior when a plurality of drill bit 31 has been installed.Controller not only can allow motor accelerate to accelerate rotation, can also allow motor slack-off, and permanent magnet direct current motor also can be used as energy recycle device, because permanent magnet direct current motor can be used as generator, generates electricity.Motor is easy to control: control rotation direction, control rotating speed, energy recovery are all prior aries.

Embodiment 14.

Sometimes, need drill bit opposite spin, at this time how to operate? can allow the mouth that flows to stream material become the mouth of outflow; The mouth originally flowing out, becomes the mouth flowing to.Referring to Figure 18, Figure 18 is top view, when needs change bit direction, preferably can adjust the position of shielding plate 23, (the definition: when flow-in hole flows into stream material, the direction of bit is forward of the suitable drill bit forward in the shielding plate position on the left side in figure, when flow-out hole flows into stream material, the direction of bit is reversion), the suitable drill bit reversion in the shielding plate position on the right in figure.That just needs like this: shielding plate 23 and housing 1 are for removably connecting.Removably connect and can conveniently change the position of shielding plate.

How to design this detachable? referring to Figure 19, Figure 20, Figure 21.The present invention provides a kind of scheme: shielding plate 23 and housing 1 are for removably connecting, and shielding plate 23 is provided with a plurality of projections 231, housing 1 inner surface is provided with a plurality of for engagement protrusion 231 and the cramping body 232 that can allow projection embed, cramping body 232 with circular distribution in blade 3 peripheries.

The shielding plate of circular arc can take off, and from a position, embeds another position.Such design, in drill bit reversion of the present invention, can improve the drill bit power of reversion.

For the purpose of drawing conveniently, the shielding plate that embodiment 14 draws is plane, also can be understood as the shielding plate 23 of circular arc is deformed into the figure after plane.Accordingly, corresponding adjustment has also been done in the drawing of cramping body 232.

Embodiment 15.

Figure 22 is the structural representation of embodiment 15.Shielding plate is conducive to improve drilling power, if the unreasonable structure of shielding plate is large not to putting forward high-power effect.In order further to improve drilling power, the present invention can optimize like this: shielding plate 23 is also provided with a plurality of holes 233.The area in hole is 0.5 square millimeter------0.8 square millimeter.Why can improve drilling power like this? reason is that the shielding plate of atresia exists the situation of power attenuation: blade rotary speed is very large, and when blade enters the scope that shielding plate surrounds, flow material has played the effect of compression; When blade goes out shielding plate, throw away stream material, and then compression stream material around.Such compression is consumed power, and can cause the deficiency that caloric value is large.The power that porose 233 shielding plate can reduce compression loss is set.

Porose 233 shielding plate 23 is set and can further improves drilling power.But the size in hole 233 (referring to size) is suitable, Kong Tai little is not enough to improve power, Kong Tai great, and drilling power can decline on the contrary.

Embodiment 16.

Figure 23 is the structural representation of embodiment 16.The shielding plate of atresia 233, except causing power to improve not sufficiently high being not enough to, also causes the deficiency that noise is large.This is because compression flow material can cause the vibration of stream material, thereby forms sound wave, and this sound wave is noise.Utilize the principle of interference of sound wave, and consider Doppler effect, shape, size, the spacing in hole 233 is rationally set, can effectively reduce the main frequency noise under routine operation.Hole 233 be shaped as rectangle, and the length in hole 233 is 1mm----1.2mm, wide is 0.5mm----0.6mm.Hole 233 spacing is in the horizontal direction that 2mm----4mm is preferred version.

The present invention, for drilling field provides a kind of new technical scheme, has advantages of simple in structure.

Claims (1)

1. drill unit, comprises housing 1, it is characterized in that: housing 1 has flow-in hole 41 and flow-out hole 42, upper surface in housing 1 inside is fixedly connected with plural dead axle lid 21, dead axle cover 21 belows also correspondence be provided with dead axle seat 22, and dead axle seat 22 is fixedly connected on the lower surface of housing 1 inside

Also comprise plural drill bit 31, the top of drill bit 31 embeds dead axle lid 21, and drill bit 31 rotations and dead axle lid 21, dead axle seat 22 the two determined axis are same axis, the cutting portion of drill bit 31 passes dead axle seat 22 and is positioned at the outside of housing 1, drill bit 31 is also fixedly connected with blade 3, the position of blade 3 is in housing 1 inside, and the position of blade 3 is between dead axle lid 21 and dead axle seat 22.