CN205552689U - Diamond hole digger - Google Patents

Abstract

The utility model discloses a diamond hole digger, including the cylindric cover body and connecting axle, wherein: still bore including the location, bore including the drill bit location, the cylindric cover body is including the cutting sword, outer coating has the diamond layer to the drill bit with the cutting sword, diamond layer thickness is 0.4~0.6mm, and through the aforesaid setting, the diamond layer replaces the whole preparation of diamond material, the the cost is reduced of using originally to all be provided with the diamond layer at main abrasion part, intensity when also having guaranteed the hole digger trompil, setting up of diamond layer has also changed the thickness that cuts the position simultaneously for the external diameter of the defective material that cuts is less than the internal diameter of the cylindric cover body, thereby the defective material is accomplished the back in the trompil more easily and is deviate from convenient to use in following hole digger.

Description

A kind of diamond hole making drill

Technical field

This utility model relates to a kind of grinding tool, particularly to a kind of diamond hole making drill.

Background technology

At present, the Chinese patent of Publication No. CN204339278U discloses a kind of diamond glass steel hole making drill, including Diamond cover body；And it is fixed on the opening bit inside diamond cover body；It is provided with and engine on rear side of described diamond cover body Structure coordinates the mounting head installed；Described opening bit length is more than diamond cover body length.

But the inwall at this hole making drill cutting position is identical with the inwall radius of cover body, and the waste material cut out easily is stuck in gold In hard rock cover body, it has not been convenient to use.

Utility model content

The purpose of this utility model is to provide a kind of convenient diamond hole making drill used.

Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of diamond perforate Device, including tubular cover body and connecting shaft, wherein: also include that spitting drill, described spitting drill include that drill bit, described tubular cover body include Cutting edge, is coated with diamond layer outside described drill bit and cutting edge, described diamond layer thickness is 0.4 ~ 0.6mm.

By using technique scheme, diamond layer replaces the most overall use diamond material to make, and reduces into This, and it is both provided with diamond layer at key wear position, also ensure that intensity during hole making drill perforate；Setting of diamond layer Put the thickness that simultaneously have also been changed cutting position so that the external diameter of the defective material cut out is less than the internal diameter of tubular cover body, thus residual Material is easier to after perforate completes deviate from from hole making drill, easy to use.

This utility model is further arranged to: be provided with sword groove at described cutting edge.

By using technique scheme, arranging of sword groove facilitates passing through of coolant, before cutting can easily be abundant Moistening cutting edge, on the one hand ensures that during cutting, temperature will not be too high, and the dust the most also avoiding cutting to produce splashes, it is ensured that cut Safety when cutting.

This utility model is further arranged to: be provided with Cooling Holes on described tubular cover body.

This utility model is further arranged to: described Cooling Holes is the mounting hole of vertical direction.

By using technique scheme, the most fricative heat of hole making drill can by Cooling Holes timely Discharging hole making drill, the mounting hole under upper can facilitate to be chosen being stuck in the defective material in portion in cylindrical cover body, convenient uses.

This utility model is further arranged to: being provided with screwed hole at described connecting shaft, it is heavy to be provided with in described screwed hole Hook bolt, described spitting drill is provided with locating notch, and described dormant bolt is against stationary positioned at locating notch and bores.

By using technique scheme, bolt is utilized to block spitting drill so that location turns the center being fixed on hole making drill, Simple in construction, and can easily install and take off, thus disassembling, assembling and replacing, dormant bolt can be carried out as required in different occasions Ensure that the smooth of surface at connecting shaft.

This utility model is further arranged to: described dormant bolt is hexagon socket head cap screw.

By using technique scheme, dormant bolt can easily be threaded into hole, and interior six by inner hexagon spanner It is difficult at angle skid, easily operates.

This utility model is further arranged to: in described cylindrical cover body, side is additionally provided with the support preventing spitting drill from toppling over.

By use technique scheme, spitting drill operationally, if produce tilt active force, can be to spitting drill Installing hole sidewall causes bigger extruding even to tilt, and the spitting drill that is set to of support provides support so that spitting drill is more steady Fixed.

This utility model is further arranged to: described support includes base ring, support bar and garter spring, described base ring and cylindrical cover The bottom edge of body is conflicted, and described garter spring is enclosed within spitting drill, and support bar connects garter spring and base ring.

By using the bottom margin of technique scheme, base ring and tubular cover body to conflict, it is ensured that stablizing at base ring, Thus garter spring is played good supporting role, it is ensured that and stablizing of support, it is thus possible to preferably support spitting drill.

This utility model is further arranged to: the bottom edge of described tubular cover body is provided with the fixing groove accommodating base ring.

By using technique scheme, the setting of fixing groove makes being more firmly mounted of base ring, and support is more stable.

In sum, this utility model has the advantages that

1, drill bit and the cutting edge of diamond coated layer has higher cutting intensity, and has certain thickness, cuts out The defective material come is less than the inner wall space of tubular cover body, thus defective material easily takes out；

2, Cooling Holes and sword groove can facilitate the interpolation of coolant, moistening abundant to cutting edge, it is ensured that safety during cutting；

3, the setting of support strengthens the stability of spitting drill, thus improves the locating effect of spitting drill.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment one；

Fig. 2 is A-A sectional view in Fig. 1；

Fig. 3 is the cross-sectional schematic of embodiment two；

Fig. 4 is the structural representation of embodiment two medium-height trestle.

In figure: 1, tubular cover body；2, connecting shaft；3, spitting drill；4, drill bit；5, cutting edge；6, diamond layer；7, sword groove； 8, Cooling Holes；9, screwed hole；10, dormant bolt；11, locating notch；12, support；13, base ring；14, garter spring；15, fixing groove.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Embodiment one:

A kind of diamond hole making drill, referring to figs. 1 through Fig. 2, including tubular cover body 1, connecting shaft 2 and spitting drill 3, spitting drill 3 Including drill bit 4, tubular cover body 1 includes being coated with diamond layer 6 outside cutting edge 5 and kidney-shaped Cooling Holes 8, drill bit 4 and cutting edge 5, Diamond layer 6 thickness is 0.5mm, and cutting edge 5 is provided with sword groove 7, is provided with screwed hole 9, sets in screwed hole 9 at connecting shaft 2 Being equipped with interior hexagonal dormant bolt 10, spitting drill 3 is provided with locating notch 11, dormant bolt 10 is against at locating notch 11 and fixes Spitting drill 3.

The principle of the present embodiment is: diamond layer 6 replaces the most overall use diamond material to make, and reduces into This, and it is both provided with diamond layer 6 at key wear position, also ensure that intensity during hole making drill perforate；Diamond layer 6 The thickness that simultaneously have also been changed cutting position is set so that the external diameter of the defective material cut out is less than the internal diameter of tubular cover body 1, thus Defective material is easier to after perforate completes deviate from from hole making drill, easy to use；Arranging of sword groove 7 facilitates passing through of coolant, Before cutting can easily abundant moistening cutting edge 5, on the one hand ensure that during cutting, temperature will not be too high, the most also avoids cutting to produce Dust splash, it is ensured that safety during cutting；The most fricative heat of hole making drill can by Cooling Holes 8 and Time discharge hole making drill, the mounting hole under upper can facilitate to be chosen being stuck in the defective material within tubular cover body 1, convenient uses； Utilize bolt to block spitting drill 3 so that location turns the center of hole making drill of being fixed on, simple in construction, and can easily install and Taking off, thus can carry out disassembling, assembling and replacing as required in different occasions, dormant bolt 10 ensure that the flat of surface at connecting shaft 2 Sliding；Dormant bolt 10 can easily be threaded at hole 9, and interior hexagonal being difficult to skid by inner hexagon spanner, easily operates.

Embodiment two:

With reference to Fig. 3 and Fig. 4, the present embodiment two and the difference of embodiment one be only that be additionally provided with inside tubular cover body 1 anti- The support 12 that only spitting drill 3 is toppled over, support 12 includes base ring 13 and garter spring 14, and base ring 13 supports with the bottom edge of tubular cover body 1 Touching, garter spring 14 is enclosed within spitting drill 3, and the bottom edge of tubular cover body 1 is provided with the fixing groove 15 accommodating base ring 13.

Advantage of this embodiment is that: spitting drill 3 operationally, if produce tilt active force, can be to spitting drill 3 Installing hole sidewall causes bigger extruding even to tilt, and the spitting drill 3 that is set to of support 12 provides support so that spitting drill 3 is more Add stable；The bottom margin of base ring 13 and tubular cover body 1 is conflicted, it is ensured that stablizing at base ring 13, thus plays garter spring 14 Good supporting role, it is ensured that stablizing of support 12, it is thus possible to preferably support spitting drill 3；The setting of fixing groove 15 makes the end Being more firmly mounted of ring 13, support 12 is more stable.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims (8)

1. a diamond hole making drill, including tubular cover body (1) and connecting shaft (2), it is characterised in that: also include spitting drill (3), Described spitting drill (3) includes that drill bit (4), described tubular cover body (1) include cutting edge (5), described drill bit (4) and cutting edge (5) Being coated with outward diamond layer (6), described diamond layer (6) thickness is 0.4 ~ 0.6mm.

A kind of diamond hole making drill the most according to claim 1, it is characterised in that: described cutting edge (5) place is provided with sword Groove (7).

A kind of diamond hole making drill the most according to claim 1, it is characterised in that: it is provided with on described tubular cover body (1) Cooling Holes (8).

A kind of diamond hole making drill the most according to claim 1, it is characterised in that: described connecting shaft (2) place is provided with spiral shell Pit (9), is provided with dormant bolt (10), described spitting drill (3) is provided with locating notch (11) in described screwed hole (9), Described dormant bolt (10) is against locating notch (11) place stationary positioned and bores (3).

A kind of diamond hole making drill the most according to claim 4, it is characterised in that: described dormant bolt (10) is interior hexagonal Bolt.

A kind of diamond hole making drill the most according to claim 1, it is characterised in that: described tubular cover body (1) inner side also sets It is equipped with the support (12) preventing spitting drill (3) from toppling over.

A kind of diamond hole making drill the most according to claim 6, it is characterised in that: described support (12) includes base ring (13) Conflicting with the bottom edge of garter spring (14), described base ring (13) and tubular cover body (1), described garter spring (14) is enclosed within spitting drill (3) on.

A kind of diamond hole making drill the most according to claim 7, it is characterised in that: the bottom side edge of described tubular cover body (1) Edge is provided with the fixing groove (15) accommodating base ring (13).