CN208303972U - A kind of diamond hole drill - Google Patents

Abstract

The utility model relates to a kind of diamond hole drills, including a metal cylinder；The metal cylinder lower edge contains multiple sawtooth being uniformly arranged, and an attachment base is contained in the upper end, and groove is formed between the adjacent saw-tooth, is correspondingly provided with the through-hole on metal cylinder side wall above sawtooth；The both ends of the sawtooth are that circular arc is excessive；The utility model cooperates motor to use, stress can be reduced when drilling to object, the both ends of sawtooth are that circular arc is excessive, increase contact area, improves drilling efficiency, the through-hole being correspondingly provided on metal cylinder side wall above sawtooth, enhance the intensity of metal cylinder, it effectively prevent diamond hole drill to deform, improves production efficiency, saved production cost.

Description

A kind of diamond hole drill

Technical field

The utility model relates to a kind of diamond hole drills.

Background technique

Chinese patent literature CN2878021 discloses a kind of diamond drilling drum, it includes diamond segment, described Buddha's warrior attendant Stone cutter head be it is multiple, be uniformly arranged on by metal plate coils at bottom of cylinder periphery on.Simple with structure, easily fabricated, Low, easy to use, time saving and energy saving, cutting speed is fast, stone material utilization rate the is high feature of manufacturing cost.In use, being fixed with drill chuck It is mounted on drilling machine, diamond segment is directed at the stone material to be drilled, and can carry out cutting drilling after adding cooling water, under drilling Cylindrical stone can do him and use；The cutting drilling that can be widely used for the stone materials such as marble, granite, medical stone is a kind of ideal Stone material cutting drilling utensil.

Chinese patent literature CN 201519786U discloses a kind of diamond boring tool, several cutter tips are equal On the even lower end surface for being fixed on metallic cylinder matrix, there is a boss on the upper surface of metallic cylinder matrix, spiral shell is set on boss Line through-hole, uniformly distributed four grooves, two oblique hollow out through slots are symmetrically disposed on metallic cylinder matrix around metallic cylinder matrix Side wall on；Four grooves around metallic cylinder matrix can play the role of expansion space in coring, smoothly to take Core；Contain diamond components in cutter tip, than sharp, can drill on harder material, boring procedure is relative to common Drill bit is more steady, greatly improves the quality of the control ability and hole wall to aperture；Lasting a long time for drilling tool, works as bite When head falls off because of failure or grinds most because of long-time service, spare cutter tip can be welded on metallic cylinder matrix and continue to make With.

Chinese patent literature CN203019546U discloses a kind of Buddha's warrior attendant diamond hole drill, including a metal cylinder, described Metal cylinder lower edge contains multiple diamond sawtooths being uniformly arranged, and an attachment base is contained in end face thereon, it is characterised in that institute State the corresponding through-hole being located on metal cylinder side wall of each groove between diamond sawtooth.With bits are moved back smoothly, take The easy feature of core.

Although above-mentioned diamond hole drill solves the problems, such as moving back bits coring difficulty, it is big that there are still stress, metal cylinder The problem of intensity is low, is easy to happen deformation.

Utility model content

Purpose of the utility model is to solve the above problems, provide a kind of Buddha's warrior attendant diamond hole drill.

In order to achieve the purpose that above-mentioned utility model, the utility model uses a kind of following technical scheme: diamond hole drill, Including a metal cylinder；The metal cylinder lower edge contains multiple sawtooth being uniformly arranged, and an attachment base, institute are contained in the upper end It states and is formed with groove between adjacent saw-tooth, be correspondingly provided with the through-hole on metal cylinder side wall above sawtooth；The sawtooth Both ends are that circular arc is excessive.

As a kind of preferred embodiment of the utility model, the entire widths and diamond sawtooth equivalent width.

As a kind of preferred embodiment of the utility model, the through-hole is located at the bottom of metal cylinder side wall.

As a kind of preferred embodiment of the utility model, the Sidewall Height between the trench bottom and through-hole top margin is not more than The half of via height.

As a kind of preferred embodiment of the utility model, the through-hole is no less than two.

As a kind of preferred embodiment of the utility model, the wall thickness of the metal cylinder is 1.0~1.5mm, metal cylinder Diameter of bore be 15.5~20.5mm.

As a kind of preferred embodiment of the utility model, the diamond saw tooth surface is coated with grinding by plating mode Layer；The grinding layer is layers of diamond particles.

As a kind of preferred embodiment of the utility model, the grinding layer with a thickness of 0.02mm~0.10mm.

The invention has the benefit that the utility model cooperation motor use, can be reduced when drilling to object by Power, the both ends of sawtooth are that circular arc is excessive, increase contact area, improve drilling efficiency, be correspondingly provided with above sawtooth positioned at metal Through-hole on cylinder lateral wall enhances the intensity of metal cylinder, effectively prevent diamond hole drill to deform, improves production efficiency, saves About production cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram in the utility model Buddha's warrior attendant diamond hole.

Wherein: 1, connecting rod, 2, attachment base, 3, metal cylinder, 4, through-hole, 5, bottom sidewall, 6, groove, 7, sawtooth, grinding Layer 8.

Specific embodiment

As shown in Figure 1, a kind of diamond hole drill, including a metal cylinder 3；3 lower edge of metal cylinder contains multiple equal An attachment base 2 is contained in the sawtooth 7 of even setting, the upper end, and the upper surface of metal cylinder 3 is equipped with attachment base 2 and connecting rod 1, with side Just it is connected to the motor.

Groove 6 is formed between adjacent saw-tooth 7, the through-hole 4 being correspondingly provided on 3 side wall of metal cylinder above sawtooth 7； The corresponding through-hole 4 of each sawtooth 7 of the utility model, the effect of through-hole 4 first is that move back bits, the fines of gear cutting generation is suitable Benefit abjection；Effect second is that be surge drum inside and outside pressure, be conducive to the stationarity for increasing drilling.

The both ends of sawtooth 7 are that circular arc is excessive, and power suffered by the sawtooth 7 is more evenly, it is not easy to fall off, strengthen metal cylinder The intensity of body, it is not easy to which deformation occurs, while also increasing contact area, improves drilling efficiency.

4 width of through-hole and 7 equivalent width of sawtooth, 4 area of through-hole is about one times of 6 area of groove, and groove 6 is preferably For round rectangle；Through-hole is excessive in the prior art, causes the reduction of 3 intensity of metal cylinder, is easy deformation, influences it and uses the longevity Life, applicant have found that, when entire widths are roughly equal with groove width, area is about sawtooth groove area by creative experiments One times when, can reach intensity requirement with move back bits require balance.

The intensity for enhancing metal cylinder 3, effectively prevent diamond hole drill to deform, and through-hole 4 is located at the bottom of 3 side wall of metal cylinder Portion；Make to move back bits smoothly, coring is easy；Through-hole 4 is located at the bottom of 3 side wall of metal cylinder, and through-hole 4 moves back bits when being located at bottom more suitable Benefit.

Sidewall Height between the groove bottom of trench and through-hole top margin is not more than the half of via height, meets this and wants The intensity of cylinder can be improved in the drilling asked.

The through-hole 4 is no less than two, and through-hole can be converted according to sawtooth number, wherein preferably even, symmetric is set It sets.

Sidewall Height between 4 top margin of 6 bottom of groove and through-hole is not more than the half of 4 height of through-hole, enhances metal cylinder The intensity of body；Through-hole 4 is no less than two, and through-hole influences to move back bits efficiency very little, reduces working efficiency.

The wall thickness of metal cylinder 3 is 1.0~1.5mm, and the diameter of bore of metal cylinder 3 is 15.5~20.5mm.

7 surface of sawtooth is coated with grinding layer 8 by plating mode；The grinding layer 8 is layers of diamond particles；The thickness of grinding layer 8 Degree is 0.02mm~0.10mm.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model；Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Although appended drawing reference in figure: 1, connecting rod is used more herein, 2, attachment base, 3, metal cylinder, 4, through-hole, 5, Bottom sidewall, 6, groove, 7, sawtooth, the equal terms of grinding layer 8, but it does not exclude the possibility of using other terms.Use these Term is used for the purpose of being more convenient to describe and explain the essence of the utility model；It is construed as any additional limit System is all contrary to the spirit of the present invention.

Claims (8)

1. a kind of diamond hole drill, including a metal cylinder (3)；Metal cylinder (3) lower edge contains multiple be uniformly arranged An attachment base (2) is contained in sawtooth (7), the upper end, it is characterised in that: groove (6) are formed between the adjacent saw-tooth (7), The through-hole (4) on metal cylinder (3) side wall is correspondingly provided with above sawtooth (7)；The both ends of the sawtooth (7) are circular arc mistake Degree.

2. a kind of diamond hole drill according to claim 1, it is characterised in that: through-hole (4) width and sawtooth (7) are wide Degree is consistent.

3. a kind of diamond hole drill according to claim 1 or 2, it is characterised in that: the through-hole (4) is located at metal cylinder (3) bottom of side wall.

4. a kind of diamond hole drill according to claim 1, it is characterised in that: groove (6) bottom and through-hole (4) top margin Between Sidewall Height be not more than through-hole (4) height half.

5. a kind of diamond hole drill according to claim 4, it is characterised in that: the through-hole (4) is no less than two.

6. a kind of diamond hole drill according to claim 1, it is characterised in that: the wall thickness of the metal cylinder (3) is 1.0 ~1.5mm, the diameter of bore of metal cylinder (3) are 15.5~20.5mm.

7. a kind of diamond hole drill according to claim 1, it is characterised in that: sawtooth (7) surface passes through plating side Formula is coated with grinding layer (8)；The grinding layer (8) is layers of diamond particles.

8. a kind of diamond hole drill according to claim 7, it is characterised in that: the grinding layer (8) with a thickness of 0.02mm~0.10mm.