CN201470954U

CN201470954U - Multi-purpose drill bit

Info

Publication number: CN201470954U
Application number: CN2009202312500U
Authority: CN
Inventors: 蒋大双
Original assignee: ZHENJIANG NEW DIRSTRICT HENGFENG TOOLS CO Ltd
Current assignee: ZHENJIANG NEW DIRSTRICT HENGFENG TOOLS CO Ltd
Priority date: 2009-09-04
Filing date: 2009-09-04
Publication date: 2010-05-19
Anticipated expiration: 2019-09-04

Abstract

The utility model discloses a multi-purpose drill bit which comprises a drill rod and a drill handle. The drill rod and the drill handle are fixedly connected into a whole, a plurality of rotary knife blades are symmetrically arranged at the head part of the drill rod along the section center of the shaft axis, the knife blades are fixedly connected with the head part of the drill rod by a knife plate, a cooling hole which is extended from the tail part of the drill handle to the head part of the drill rod is arranged in the center of the drill bit, a positioning drill is arranged in the center of the head part of the drill rod, a transverse threaded hole is arranged at the front end of the drill rod, and a fastening piece is fixedly connected with the positioning drill sheathed in a center hole at the head part of the drill rod after penetrating through the transverse threaded hole. With simple structure and convenient installation, the multi-purpose drill bit can carry out processing or boring on the holes with different diameter by adjusting the radial positions of the rotary knife blades at the head part of the drill rod; under the condition of not replacing the knife blades, the multi-purpose drill bit can carry out processing procedures of the holes such as drilling, dimpling and the like by replacing the corresponding positioning drill, thereby greatly saving the working hours at the same time as increasing the production efficiency.

Description

A kind of multi-use bit

Technical field

The utility model relates to a kind of edge blade drill bit, and especially a kind of edge blade drill bit that serves many purposes belongs to the cutting-tool engineering field that machine cut is processed.

Background technology

Drill bit is a kind of boring cutting tool that often uses, and wherein the most frequently used is fluted drill, and in order to improve cutting power and production efficiency, More and more factories replaces fluted drill with edge blade drill bit at present.Edge blade drill bit is a kind of novel boring, broad, on lathes such as lathe, milling machine and machining center and building-block machine and transfer matic, obtained extensive employing, wherein internally cooled edge blade drill bit has the cutting speed height with respect to common drill bit, the machining accuracy advantages of higher.Though edge blade drill bit has overcome some shortcomings of fluted drill, most function singlenesses, the aperture of processing different-diameter, difformity, different accuracy often need be changed blade, and complex operation has also increased man-hour virtually.

The utility model content

The purpose of this utility model provides a kind of simple in structure, easy for installation many with edge blade drill bits, this many can be under the situation of not changing blade with edge blade drill bit, the hole of different-diameter, difformity, different accuracy is processed.

The utility model is achieved by the following technical programs:

A kind of multi-use bit comprises the drilling rod and the drillstock that link into an integrated entity, and described drilling rod head end is fixed with several to indexable insert tip, throw away tip symmetrically along the axial line center, and described indexable insert tip, throw away tip is fixed in the groove of described drilling rod head end; Described bit central is provided with from the cooling fluid hole of drillstock afterbody to the extension of drilling rod head, and described indexable insert tip, throw away tip is fixedlyed connected with the head of drilling rod by knife plate; The head center of described drilling rod is equipped with spitting drill, and described drilling rod front end is provided with the horizontal thread hole, and securing member passes the horizontal thread hole fixedlys connected with the spitting drill in the centre bore that is sleeved on the drilling rod head.

The purpose of this utility model can also further realize by following technical measures.

Aforesaid a kind of multi-use bit, wherein said indexable insert tip, throw away tip is fixedlyed connected with knife plate by securing member;

Described knife plate is provided with the transverse waist hole, and securing member passes the transverse waist hole fixedlys connected knife plate with the drilling rod head.

Aforesaid a kind of multi-use bit, wherein said spitting drill are drill guide, and described drill guide comprises guide body and the guiding drill bit that links into an integrated entity; The outer peripheral face of described guide body is provided with locating slot, and an end of securing member passes across the drilling rod head abuts on this locating slot.

Aforesaid a kind of multi-use bit, wherein said spitting drill are that step bores, and described step bores and comprises guide body and the step drill bit that links into an integrated entity; The outer peripheral face of described guide body is provided with locating slot, and an end of securing member passes across the drilling rod head abuts on this locating slot.

Aforesaid a kind of multi-use bit, wherein said spitting drill bores for guiding, and described guiding is bored and is comprised guide way and the starter that links into an integrated entity; The outer peripheral face of described guide way is provided with locating slot, and an end of securing member passes across the drilling rod head abuts on this locating slot; The end face of described starter is the plane with its axis normal.

The utility model is simple in structure, and is easy for installation.Indexable insert tip, throw away tip is fixed on earlier on the knife plate, and securing member passes the transverse waist hole on the knife plate then, and blade, knife plate are fixedlyed connected with the drilling rod head.The transverse waist hole can be used for regulating the radial position of indexable insert tip, throw away tip at the drilling rod head on the knife plate, makes bore diameter that the variable quantity of 2～3mm can be arranged, and like this, but the hole of a drilling rod drilling different-diameter also can be used to bore hole.Simultaneously, under the situation of not changing blade,, can carry out hole manufacturing procedures such as drilling bullport, shoulder hole, spot-facing by changing corresponding spitting drill, reduce or cancelled tool changing, tool setting, loaded down with trivial details operation such as readjust, saved man-hour greatly when enhancing productivity.

Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide as an example with reference to accompanying drawing.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the cutting edge head enlarged drawing of Fig. 1;

Fig. 3 is the I portion enlarged drawing of Fig. 1;

Fig. 4 is the structure for amplifying schematic diagram of the utility model drill guide;

Fig. 5 is the structure for amplifying schematic diagram that the utility model step bores;

Fig. 6 is the structure for amplifying schematic diagram that the utility model guiding is bored.

Fig. 7 is the structural representation of the utility model embodiment two.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Be applied on the flat edge blade of the internally cooled drill bit for the utility model as Fig. 1～embodiment shown in Figure 4, this drill bit comprises drilling rod 1 and the drillstock 2 that links into an integrated entity, the head of drilling rod 1 is provided with two indexable insert tip, throw away tips 3 symmetrically along the axial line center, screw 10 passes indexable insert tip, throw away tip 3 and is fixed on the knife plate 11; Screw 12 passes the transverse waist hole 111 on the knife plate 11, and indexable insert tip, throw away tip 3, knife plate 11 are fixedlyed connected with drilling rod head recess 4 threes.Can regulate the radial position of indexable insert tip, throw away tip 3 by the transverse waist hole 111 on the knife plate 11, insert pad dieback indexable insert tip, throw away tip 3 at the gap location that adjusts at drilling rod 1 head, but thereby the hole of the multiple different-diameter of drilling.Drillstock 2 is convenient to fixedly connected with multiple lathe for the taper of band Morse tapering; Bit central is provided with from the afterbody of drillstock 2 cools off hole 5 to the Y type of two indexable insert tip, throw away tips of head, 3 extensions of drilling rod 1, cooling fluid arrives two indexable insert tip, throw away tips 3 respectively by cooling hole 5, make indexable insert tip, throw away tip 3 can obtain in time, cool off fully, thereby improve cutting speed, be convenient to chip removal.

The head center of drilling rod 1 also is equipped with drill guide 6, drill guide 6 comprises guide body 61, the guiding drill bit 62 that links into an integrated entity, guiding drill bit 62 is provided with helical form chip area 64, the axial angle A1 of its cutting edge is 118 °, the outer peripheral face of guide body 61 is provided with locating slot 63, one end of holding screw 9 passes across drilling rod 1 head abuts on the locating slot 63 of this drill guide, and guide body 61 is carried out radial location.When the outer end in the transverse waist hole 111 on the knife plate 11 was fixed, present embodiment can be used as just that flat bottom bit is holed, reaming processing.When needs enlarge bore diameter, take off the drill guide 6 of drilling rod 2 head center, radially outwards regulate the position of knife plate 11, the suitable pad of thickness is installed between the sidewall 41 of knife plate 11 and drilling rod 1 head recess 4 simultaneously, to reduce the circular runout of indexable insert tip, throw away tip 3, adopt the method can enlarge bore diameter 2～3mm, simultaneously, the method also can be used the transposition drill bit as boring cutter.

The utility model also can replace with drill guide 6 step brill 7 and guiding bores 8.

As shown in Figure 5, step bores 7 and is made of drill body 71 that links into an integrated entity and step drill bit 72; Also be provided with helical form chip area 74 on the step drill bit 72, the axial angle A2 of its cutting edge is 120 °, the outer peripheral face of drill body 71 is provided with locating slot 73, and an end of holding screw 9 passes across drilling rod 1 head abuts on the locating slot 73 of this drill guide 9, and it is carried out radial location.During use, earlier drill guide 6 is taken off, load onto step and bore 7, can carry out drilling processing stepped hole.

As shown in Figure 6, guiding is bored 8 and is made of guide way 81 that links into an integrated entity and starter 82, the outer peripheral face of guide way 81 is provided with locating slot 83, one end of holding screw 9 passes across drilling rod 1 head abuts on the locating slot 83 of this drill guide 9, it is carried out radial location, and the end face of starter 82 is the plane with its axis normal.During use, guiding is bored 8 be installed in the centre bore 11 of drilling rod 1 head, promptly can be used as the tape guide counterbit and carry out spot-facing processing.

As shown in Figure 7, the utility model also can be applicable on the internally cooled indexable drill, and the shape of each part, position relation, action principle are identical with the platybasic type drill bit.

In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims

1. a multi-use bit comprises the drilling rod and the drillstock that link into an integrated entity, and described drilling rod head end is fixed with several to indexable insert tip, throw away tip symmetrically along the axial line center, and described indexable insert tip, throw away tip is fixed in the groove of described drilling rod head end; Described bit central is provided with from the cooling fluid hole of drillstock afterbody to the extension of drilling rod head, and it is characterized in that: described indexable insert tip, throw away tip is fixedlyed connected with the head of drilling rod by knife plate; The head center of described drilling rod is equipped with spitting drill, and described drilling rod front end is provided with the horizontal thread hole, and securing member passes the horizontal thread hole fixedlys connected with the spitting drill in the centre bore that is sleeved on the drilling rod head.

2. a kind of multi-use bit as claimed in claim 1 is characterized in that: described indexable insert tip, throw away tip is fixedlyed connected with knife plate by securing member; Described knife plate is provided with the transverse waist hole, and securing member passes the transverse waist hole fixedlys connected knife plate with the drilling rod head.

3. a kind of multi-use bit as claimed in claim 1 is characterized in that: described spitting drill is a drill guide, and described drill guide comprises guide body and the guiding drill bit that links into an integrated entity; The outer peripheral face of described guide body is provided with locating slot, and an end of securing member passes across the drilling rod head abuts on this locating slot.

4. a kind of multi-use bit as claimed in claim 1 is characterized in that: described spitting drill is that step bores, and described step bores and comprises guide body and the step drill bit that links into an integrated entity; The outer peripheral face of described guide body is provided with locating slot, and an end of securing member passes across the drilling rod head abuts on this locating slot.

5. a kind of multi-use bit as claimed in claim 1 is characterized in that: described spitting drill bores for guiding, and described guiding is bored and comprised guide way and the starter that links into an integrated entity; The outer peripheral face of described guide way is provided with locating slot, and an end of securing member passes across the drilling rod head abuts on this locating slot.

6. a kind of multi-use bit as claimed in claim 5 is characterized in that: the end face of described starter for the plane of its axis normal.