CN217727252U - Novel stepped drill point twist drill - Google Patents

Abstract

The utility model discloses a novel stepped drill point twist drill, which comprises a first stepped drill point and a second stepped drill point, wherein one end of the first stepped drill point is provided with a first processing end, the other end of the first stepped drill point is provided with an end surface, the outer side of the end surface is fixedly connected with a prism, the inner side of the second stepped drill point is provided with a jack, and the prism and the jack are mutually matched; through setting up first step drill point and second step drill point, the one end fixedly connected with at first step drill point is prismatic, inboard at second step drill point is provided with the jack, mutually support through prismatic and jack and assemble first step drill point and second step drill point, and then conveniently assemble and dismantle first step drill point and second step drill point, when first step drill point takes place to damage and needs to be changed, in order to reach the effect of carrying out independent dismantlement to first step drill point, the loss of bringing because first step drill point damages has been reduced.

Description

Novel stepped drill point twist drill

Technical Field

The utility model belongs to the technical field of the fluted drill, concretely relates to novel ladder drill point fluted drill.

Background

Twist drills are tools that drill round holes in a workpiece by rotary cutting thereof relative to a fixed axis. The flute is spiral and shaped like twist. The spiral grooves have 2, 3 or more grooves, but 2 grooves are most common. Twist drills can be used clamped on hand-held drilling tools, both manual and electric, or drilling, milling, turning and even machining centers. The drill bit material is typically high speed tool steel or cemented carbide.

Generally adopt the ladder twist drill that cutting part has different diameters when processing the shoulder hole at present, but current ladder point of drill twist drill is whole setting usually, need carry out whole change when the point of drill damages, and the point of drill damages the easiest, and then has increased the damage cost, has consequently proposed novel ladder point of drill twist drill.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome current defect, provide novel ladder drill point fluted drill to solve the current ladder drill point fluted drill who proposes in the above-mentioned background art and be whole setting usually, need carry out whole change when the drill point damages, and the drill point damages most easily, and then has increased the problem of damage cost.

In order to achieve the above object, the utility model provides a following technical scheme: novel ladder drill point fluted drill, including first ladder drill point and second ladder drill point, first ladder drill point one end is provided with processing end one, the first ladder drill point other end is provided with the terminal surface, terminal surface outside fixedly connected with is prismatic, second ladder drill point inboard is provided with the jack, prism and jack mutually support, the one end that second ladder drill point is close to the terminal surface is provided with processing end two, the second ladder drill point other end is provided with the brill body.

Preferably, the inner sides of the second stepped drill tip and the drill body are provided with jacks, and the upper end of the prism is located on the inner side of the drill body.

Preferably, the drill body is symmetrically provided with threaded holes on the outer side, the inner sides of the threaded holes are in threaded connection with screws, and the prism is fixedly connected with the drill body through the screws.

Preferably, the other end of the drill body is provided with an assembling head, and the drill body is connected with the output end of the driving device in a clamping mode through the assembling head.

Preferably, the cross section of the prism is a regular polygon, and the number of the side faces of the prism is even.

Preferably, the number of sides of the prism is at least 6.

Preferably, one end of the screw, which is positioned on the inner side of the drill body, is positioned on the outer side of the prism.

Compared with the prior art, the utility model provides a novel ladder drill point fluted drill possesses following beneficial effect:

1. the utility model discloses a set up first ladder drill point and second ladder drill point, be connected with the prism at the one end fixedly of first ladder drill point, be provided with the jack in the inboard of second ladder drill point, assemble first ladder drill point and second ladder drill point through the mutual cooperation of prism and jack, and then conveniently assemble and dismantle first ladder drill point and second ladder drill point, when first ladder drill point takes place to damage and needs to be changed, in order to reach the effect of carrying out the independent dismantlement to first ladder drill point, the loss because first ladder drill point damages the brought has been reduced;

2. the utility model discloses a set up and bore the body, it is located the one end of second step drill point to bore the body, insert the back that targets in place when the prism, prismatic upper end is located the inboard of boring the body, screw hole twist screw through boring the external side, the one end of screw is located prismatic side just this moment, make the screw fix boring the internal side prism of body, prevent to drop each other between first step drill point and the second step drill point, when changing first step drill point, dismantle the screw that will bore the external side of body, remove the fixation to the prism, extract prismatic inside from the second step drill point can, reached and be convenient for carry out the effect changed to first step drill point.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization provides very big help for people.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and do not constitute a limitation on the invention, and in the drawings:

fig. 1 is an isometric structural schematic diagram of a novel stepped drill point twist drill provided by the present invention;

fig. 2 is a schematic diagram of an explosion structure of the novel stepped drill point twist drill provided by the utility model;

fig. 3 is a schematic structural view of a second stepped drill tip in the novel stepped drill tip twist drill provided by the present invention;

fig. 4 is a schematic front view structure diagram of the novel stepped drill point twist drill provided by the present invention;

in the figure: the drill comprises a first stepped drill point 1, a second stepped drill point 2, a first machining end 3, an end face 4, a prism 5, a jack 6, a second machining end 7, a drill body 8, an assembling head 9, a threaded hole 10 and a screw 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: novel ladder drill point twist drill, including first ladder drill point 1 and second ladder drill point 2, 1 one end of first ladder drill point is provided with processing end 3, the 1 other end of first ladder drill point is provided with terminal surface 4, the prismatic 5 of terminal surface 4 outside fixedly connected with, 2 inboards of second ladder drill point are provided with jack 6, prismatic 5 and jack 6 mutually support, the one end that second ladder drill point 2 is close to terminal surface 4 is provided with processing end two 7, the 2 other ends of second ladder drill point are provided with the drill body 8, through setting up first ladder drill point 1 and second ladder drill point 2, at the prismatic 5 of one end fixedly connected with of first ladder drill point 1, inboard at second ladder drill point 2 is provided with jack 6, mutually support through prismatic 5 and jack 6 and assemble first ladder drill point 1 and second ladder drill point 2, and then conveniently assemble and dismantle first ladder drill point 1 and second ladder drill point 2, when first ladder drill point 1 takes place to damage and needs to be changed, in order to reach and carry out the effect of dismantling alone, the first ladder drill point 1 loss has reduced the damage.

The utility model discloses in, preferred, second step drill point 2 all is provided with jack 6 with the inboard of boring the body 8, and prismatic 5 upper end is located the inboard of boring the body 8, makes second step drill point 2 and bore the body 8 and drive first step drill point 1 through prismatic 5 simultaneously and rotate to guarantee holistic intensity.

The utility model discloses in, preferred, bore 8 outside symmetries of body and offered screw hole 10, the equal threaded connection in screw hole 10 inboard has screw 11, prismatic 5 through screw 11 with bore 8 fixed connection of body, twist screw 11 through the screw hole 10 that bores the 8 outside of body, make screw 11 fix boring 8 inboard prismatic 5, prevent to drop each other between first step drill point 1 and the second step drill point 2.

The utility model discloses in, preferred, bore 8 other ends of the body and be provided with assembly head 9, bore 8 and be connected with drive arrangement's output block through assembly head 9, will bore 8 and drive arrangement and assemble through assembly head 9, can drive second step drill point 2 and first step drill point 1 and rotate together when boring 8 at the rotation in-process.

In the utility model, preferably, the cross section of the prism 5 is a regular polygon, and the number of the side surfaces of the prism 5 is even; the number of the side faces of the prism 5 is at least 6; the outer sides of the prisms 5 are stressed more uniformly, and meanwhile, the two sides are convenient to symmetrically fix.

The utility model discloses in, preferred, the screw 11 is located and bores the one end of 8 inboards of the body and all is located prismatic 5's the outside, and the screw 11 that sets up through the symmetry carries out the symmetry to prismatic 5's both sides and fixes, improves the stability of connecting the assembly.

The utility model discloses a theory of operation and use flow: when the drill bit is used, the prism 5 at one end of the first stepped drill point 1 is inserted into the jack 6 at the inner side of the second stepped drill point 2, the prism 5 and the jack 6 are matched with each other, after the prism 5 is inserted in place, the upper end of the prism 5 is positioned at the inner side of the drill body 8, then the screw 11 is screwed in through the threaded hole 10 at the outer side of the drill body 8, one end of the screw 11 is just positioned on the side surface of the prism 5 at the moment, the screw 11 fixes the prism 5 at the inner side of the drill body 8, the first stepped drill point 1 and the second stepped drill point 2 are prevented from falling off from each other, finally the drill body 8 is assembled with the driving equipment through the assembling head 9, and when the drill body 8 rotates, the second stepped drill point 2 and the first stepped drill point 1 are driven to rotate together, and then make first step drill point 1 and second step drill point 2 carry out processing work through the processing end 3 and the processing end two 7 of one end respectively, when first step drill point 1 takes place to damage and needs to be changed, at first dismantle the drill body 8, then dismantle the screw 11 in the drill body 8 outside, remove the fixed to prism 5, and then extract prism 5 from the inside of second step drill point 2, in order to reach the effect of carrying out independent dismantlement to first step drill point 1, then assemble according to above mode for the first step drill point 1 of more renewing, and then reached and be convenient for carry out the effect of changing to first step drill point 1, the loss that brings because first step drill point 1 damages has been reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Novel ladder drill point fluted drill, including first ladder drill point (1) and second ladder drill point (2), its characterized in that: first stepped drill point (1) one end is provided with processing end (3), first stepped drill point (1) other end is provided with terminal surface (4), terminal surface (4) outside fixedly connected with is prismatic (5), second stepped drill point (2) inboard is provided with jack (6), prismatic (5) and jack (6) are mutually supported, the one end that second stepped drill point (2) are close to terminal surface (4) is provided with processing end two (7), second stepped drill point (2) other end is provided with bores body (8).

2. The novel stepped tip twist drill of claim 1, wherein: the inner sides of the second stepped drill point (2) and the drill body (8) are provided with jacks (6), and the upper end of the prism (5) is located on the inner side of the drill body (8).

3. The novel stepped tip twist drill according to claim 1, wherein: threaded holes (10) are symmetrically formed in the outer side of the drill body (8), screws (11) are connected to the inner sides of the threaded holes (10) in a threaded mode, and the prism (5) is fixedly connected with the drill body (8) through the screws (11).

4. The novel stepped tip twist drill of claim 1, wherein: the drill body (8) is provided with an assembling head (9) at the other end, and the drill body (8) is connected with the output end of the driving device in a clamping mode through the assembling head (9).

5. The novel stepped tip twist drill according to claim 1, wherein: the cross section of the prism (5) is a regular polygon, and the number of the side faces of the prism (5) is even.

6. The novel stepped tip twist drill of claim 1, wherein: the number of the side faces of the prism (5) is at least 6.

7. A novel stepped tip twist drill according to claim 3, wherein: and one end of the screw (11) positioned at the inner side of the drill body (8) is positioned at the outer side of the prism (5).

Images