CN206263310U - A kind of carbide drill piece and drill bit - Google Patents
A kind of carbide drill piece and drill bit Download PDFInfo
- Publication number
- CN206263310U CN206263310U CN201621278195.7U CN201621278195U CN206263310U CN 206263310 U CN206263310 U CN 206263310U CN 201621278195 U CN201621278195 U CN 201621278195U CN 206263310 U CN206263310 U CN 206263310U
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- piece
- brill
- carbide drill
- oblique convex
- main body
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Abstract
The utility model provides a kind of carbide drill piece, including bores piece main body and be arranged on the anterior angle and relief angle of the brill piece body top, it is characterised in that the brill piece bottom part body sets fluted；The groove runs through brill piece main body along piece body thickness direction is bored；The relief angle side for boring piece main body is provided with oblique convex body；The oblique convex body is in inclined-plane along piece bottom part body vertical direction is bored raised by brill piece body top；The top of the oblique convex body is less than relief angle minimum point, and bottom is concordant with piece bottom part body is bored, and gradient is 1 °~10 °.Compared with prior art, the carbide drill piece that the utility model is provided sets groove and oblique convex body by ad-hoc location, improves the ashing capacity of carbide drill piece, so as to further reduce the abrasion of carbide drill piece, the operating efficiency of drill bit is improved, strengthens the usability and durability of product.
Description
Technical field
The utility model is related to drilling tool technical field, is to be related to a kind of carbide drill piece and brill more specifically
Head.
Background technology
The type of impact drill and electric hammer drill carbide drill piece is defined in Chinese machinery industry standard JB/T8369-2012
Number and size, as depicted in figs. 1 and 2, the top drift angle for boring piece main body 1 which specify carbide drill piece is 130 ± 3 °,
The top for boring piece main body 1 is provided with anterior angle 2 and relief angle 3, and segmentation anterior angle 2 and relief angle 3 are provided with the top end for boring piece main body 1
Chisel edge 4.At present, the matched bit matrix of the carbide drill piece of specific model and size is carried out into welding and forms ad hoc type
Number drill bit, for drill etc. real work.
But, carbide drill piece ashing capacity in practical work process of the prior art is poor, makes the dust of generation
Can not in time discharge, so as to increase cutting resistance of the carbide drill piece in drilling, increase the abrasion to carbide drill piece,
Normal use to drill bit brings adverse effect.
Utility model content
In view of this, the purpose of this utility model there are provided a kind of carbide drill piece, what the utility model was provided
Carbide drill piece ashing capacity is strong.
The utility model provides a kind of carbide drill piece, including bores piece main body and be arranged on the brill piece body top
Anterior angle and relief angle, it is characterised in that the brill piece bottom part body sets fluted；The groove is along brill piece body thickness direction
Through brill piece main body；
The relief angle side for boring piece main body is provided with oblique convex body；The oblique convex body is by brill piece body top along brill piece main body
It is in inclined-plane that bottom vertical direction is raised；The top of the oblique convex body is less than relief angle minimum point, and bottom is concordant with piece bottom part body is bored,
Gradient is 1 °~10 °.
Preferably, the number of the groove is more than 2.
Preferably, the groove is uniform regular array piece bottom part body is bored.
Preferably, the top of the oblique convex body and the distance of relief angle minimum point are 0.5cm~5cm.
Preferably, the bottom of the oblique convex body and the vertical range for boring piece bottom part body are 0.1cm~1cm.
Preferably, the horizontal width of the oblique convex body is 0.1cm~3cm.
Preferably, the oblique convex body and the vertical height of the contact surface for boring piece subject plane are 2cm~15cm.
Preferably, the number of the oblique convex body is 2；Described 2 oblique convex bodys are symmetrical along the rotating shaft center for boring piece main body.
Preferably, the anterior angle and relief angle for boring piece body top forms 1/3 Rectangular knife edge.
The utility model additionally provides a kind of drill bit, including bit matrix and brill piece；The brill piece is above-mentioned technical proposal
Described carbide drill piece.
The utility model provides a kind of carbide drill piece, including bores piece main body and be arranged on the brill piece body top
Anterior angle and relief angle, it is characterised in that the brill piece bottom part body sets fluted；The groove is along brill piece body thickness direction
Through brill piece main body；The relief angle side for boring piece main body is provided with oblique convex body；The oblique convex body is by brill piece body top along brill
It is in inclined-plane that piece bottom part body vertical direction is raised；The top of the oblique convex body is less than relief angle minimum point, bottom and brill piece main body bottom
Portion is concordant, and gradient is 1 °~10 °.Compared with prior art, the carbide drill piece that the utility model is provided is by certain bits
Groove and oblique convex body are installed, the ashing capacity of carbide drill piece is improved, so as to further reduce the mill of carbide drill piece
Damage, improve the operating efficiency of drill bit, strengthen the usability and durability of product.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing for providing.
Fig. 1 is the front view of the carbide drill piece of prior art；
Fig. 2 is the top view of the carbide drill piece of prior art；
The front view of the carbide drill piece that Fig. 3 is provided for the utility model embodiment；
The top view of the carbide drill piece that Fig. 4 is provided for the utility model embodiment；
The side view of the carbide drill piece that Fig. 5 is provided for the utility model embodiment；
The structural representation of the drill bit that Fig. 6 is provided for the utility model embodiment.
Specific embodiment
Below in conjunction with the utility model embodiment, the technical solution of the utility model is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of the utility model protection is belonged to.
The utility model provides a kind of carbide drill piece, including bores piece main body and be arranged on the brill piece body top
Anterior angle and relief angle, it is characterised in that the brill piece bottom part body sets fluted；The groove is along brill piece body thickness direction
Through brill piece main body；
The relief angle side for boring piece main body is provided with oblique convex body；The oblique convex body is by brill piece body top along brill piece main body
It is in inclined-plane that bottom vertical direction is raised；The top of the oblique convex body is less than relief angle minimum point, and bottom is concordant with piece bottom part body is bored,
Gradient is 1 °~10 °.
Refer to Fig. 3, the front view of the carbide drill piece that Fig. 3 is provided for the utility model embodiment, wherein, 1 to bore
Piece main body, 2 is anterior angle, and 3 is relief angle, and 4 is chisel edge, and 5 is groove, and 6 is oblique convex body.It is new in order to further clearly describe this practicality
Type, incorporated by reference to Fig. 4 and Fig. 5, wherein, the top view of the carbide drill piece that Fig. 4 is provided for the utility model embodiment, Fig. 5 is
The side view of the carbide drill piece that the utility model embodiment is provided.
In the utility model, brill piece main body (1) is carbide drill piece main body well known to those skilled in the art,
The utility model is not particularly limited to the model and material of brill piece main body (1), can be ripe using those skilled in the art
The brill piece main body that the 6.2mm~6.3mm specifications known are constituted to 38.2mm~38.3mm specifications, any hard alloy.
In the utility model, brill piece main body (1) top is provided with anterior angle (2) and relief angle (3), the anterior angle (2)
It is identical with the anterior angle of carbide drill piece in the prior art and relief angle set-up mode with the set-up mode of relief angle (3), boring piece master
Body top both sides are respectively provided with anterior angle and relief angle, and formation includes 4 part-structures of two anterior angles and two relief angles, wherein anterior angle and
Relief angle is alternately distributed, and two anterior angles are symmetrical along the rotating shaft center for boring piece main body, while two relief angles are also along the rotation for boring piece main body
Spindle central is symmetrical.In the utility model, it is described brill piece main body (1) top end at be provided with segmentation anterior angle (2) and after
The chisel edge (4) at angle (3).
In the utility model, the anterior angle (2) and relief angle (3) bored at the top of piece main body (1) forms the edge of a knife, preferably 1/
3 Rectangular knife edges.In the utility model, the anterior angle (2) and relief angle (3) bored at the top of piece main body (1) forms 1/3 right angle knife
Mouthful, it is possible to increase the sharpness of the edge of a knife, while being shielded to the edge of a knife.
In the utility model, described brill piece main body (1) bottom sets fluted (5)；The groove (5) is along brill piece main body
(1) thickness direction is through brill piece main body (1).In the utility model, the groove (5) with auxiliary ashing capacity, while can
Preferably to buffer the pressure that carbide drill piece is operationally produced, so as to improve impact resistance；Additionally, the groove (5)
The bonding area for boring piece main body (1) and drill bit substrate is increased, so that the weld strength of the two is improved, while in welding process
In, the groove (5) equally has the effect of discharge impurity.
In the utility model, the number of the groove (5) is preferably more than 2, more preferably 2.It is new in this practicality
In type, the groove (5) is preferably uniform regular array in brill piece main body (1) bottom, i.e., when described groove is even number, along brill
The axisymmetry distribution of piece main body；When the groove is odd number, one of groove is located in the rotary shaft for boring piece main body
And it is symmetrical, remaining even number groove is along the axisymmetry distribution for boring piece main body.It is preferred real in the utility model one
Apply in example, the number of the groove (5) is 2, and 2 grooves (5) are boring piece main body (1) bottom along the rotation for boring piece main body (1)
Axial symmetry is distributed.The utility model is not particularly limited to the specification of the groove (5), and piece master is being bored according to different number grooves
Body bottom distribution situation is configured.
In the utility model, described relief angle (3) side for boring piece main body (1) is provided with oblique convex body (6)；The oblique convex body
(6) it is raised in inclined-plane along piece main body (1) bottom vertical direction is bored by brill piece main body (1) top；The top of the oblique convex body (6) is low
In relief angle (3) minimum point, the bottom of the oblique convex body (6) is concordant with piece main body (1) bottom is bored, the gradient of the oblique convex body (6)
It is 1 °~10 °.In the utility model, the oblique convex body (6) can increase carbide drill piece in work with ashing capacity
When ash discharge speed so that further reduce carbide drill piece cutting resistance and abrasion, improve drill bit operating efficiency, increase
The usability and durability of strong product.
In the utility model, the top of the oblique convex body (6) is less than relief angle (3) minimum point, i.e., oblique convex body (6) not with it is rear
Angle (3) is joined directly together；The top of the oblique convex body (6) is preferably 0.5cm~5cm with the distance of relief angle (3) minimum point.In this reality
In new, the bottom of the oblique convex body (6) is concordant with piece main body (1) bottom is bored；The bottom of the oblique convex body (6) and brill piece master
The vertical range of body (1) bottom is preferably 0.1cm~1cm.
In the utility model, oblique convex body (6) left and right sides are vertical with piece main body (1) plane is bored, wherein described
The right flank of oblique convex body (6) is concordant with the right flank for boring piece main body (1).In the utility model, the level of the oblique convex body (6)
Width is preferably 0.1cm~3cm.In the utility model, the contact surface of the oblique convex body (6) and brill piece main body (1) plane
Vertical height is preferably 2cm~15cm.
In the utility model, it is symmetrical that brill piece main body (1) top is provided with two rotating shaft center along brill piece main body (1)
Relief angle (3), the number of the oblique convex body (6) is preferably 2；Identical, position pair in described 2 oblique convex body (6) structures
Should, it is also symmetrical along the rotating shaft center for boring piece main body (1).
The utility model additionally provides a kind of drill bit, including bit matrix and brill piece；The brill piece is above-mentioned technical proposal
Described carbide drill piece, shown in Figure 6, the structural representation of the drill bit that Fig. 6 is provided for the utility model embodiment, its
In, it is the carbide drill piece described in above-mentioned technical proposal to bore piece, and Each part is identical, and 7 is bit matrix.It is new in this practicality
In type, the drill bit is welded by the bit matrix of match specifications with piece is bored, and it is not specifically limited to this for the utility model.
The utility model provides a kind of carbide drill piece, including bores piece main body and be arranged on the brill piece body top
Anterior angle and relief angle, it is characterised in that the brill piece bottom part body sets fluted；The relief angle side for boring piece main body is set
There is oblique convex body；The oblique convex body is in inclined-plane along piece bottom part body vertical direction is bored raised by brill piece body top；The oblique convex body
Top be less than relief angle minimum point, bottom with bore piece bottom part body it is concordant, gradient be 1 °~10 °.Compared with prior art, this reality
Groove and oblique convex body are set by ad-hoc location with the carbide drill piece of new offer, the ash discharge of carbide drill piece is improved
Ability, so as to further reduce the abrasion of carbide drill piece, improves the operating efficiency of drill bit, strengthens the usability of product and resistance to
Long property.
In addition, the utility model additionally provides a kind of drill bit, with impact resistance higher, while weld strength is high, weldering
Connect purity good.
In order to further illustrate the utility model, it is described in detail below by following examples.
Embodiment 1
6.2cm specification carbide drill pieces, design parameter is as follows：
(1) 1/3 Rectangular knife edge；
(2) groove number 2, are U-type groove along the axisymmetry distribution for boring piece main body, 1cm wide, radius 0.2cm；
(3) oblique 3.17 ° of convex body gradient, top and relief angle perigee distance 0.5cm, bottom are vertical with brill piece bottom part body
Apart from 0.2cm, horizontal width 0.2cm, the vertical height 2.7cm with the contact surface for boring piece subject plane.
The bit matrix that the carbide drill piece of the above-mentioned specification that the utility model embodiment 1 is provided is matched with its specification
Welding, obtains drill bit.
Embodiment 2
10.3cm specification carbide drill pieces, design parameter is as follows：
(1) 1/3 Rectangular knife edge；
(2) groove number 2, are U-type groove along the axisymmetry distribution for boring piece main body, 1.5cm wide, radius 0.6cm；
(3) oblique 2.3 ° of convex body gradient, top and relief angle perigee distance 0.5cm, bottom are vertical with brill piece bottom part body
Apart from 0.2cm, horizontal width 0.3cm, the vertical height 5cm with the contact surface for boring piece subject plane.
The bit matrix that the carbide drill piece of the above-mentioned specification that the utility model embodiment 2 is provided is matched with its specification
Welding, obtains drill bit.
Embodiment 3
12.3cm specification carbide drill pieces, design parameter is as follows：
(1) 1/3 Rectangular knife edge；
(2) groove number 2, are U-type groove along the axisymmetry distribution for boring piece main body, 2cm wide, radius 1.2cm；
(3) oblique 2.5 ° of convex body gradient, top and relief angle perigee distance 2cm, bottom it is vertical with brill piece bottom part body away from
From 0.2cm, horizontal width 0.5cm, the vertical height 4.6cm with the contact surface for boring piece subject plane.
The bit matrix that the carbide drill piece of the above-mentioned specification that the utility model embodiment 3 is provided is matched with its specification
Welding, obtains drill bit.
The described above of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where spirit or scope of the present utility model are not departed from.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of carbide drill piece, including brill piece main body and the anterior angle and relief angle that are arranged on the brill piece body top, it is special
Levy and be, the brill piece bottom part body sets fluted；The groove runs through brill piece main body along piece body thickness direction is bored；
The relief angle side for boring piece main body is provided with oblique convex body；The oblique convex body is by brill piece body top along brill piece bottom part body
It is in inclined-plane that vertical direction is raised；The top of the oblique convex body is less than relief angle minimum point, and bottom is concordant with piece bottom part body is bored, gradient
It is 1 °~10 °.
2. carbide drill piece according to claim 1, it is characterised in that the number of the groove is more than 2.
3. carbide drill piece according to claim 2, it is characterised in that the groove is uniform piece bottom part body is bored
Regular array.
4. carbide drill piece according to claim 1, it is characterised in that the top of the oblique convex body and relief angle minimum point
Distance be 0.5cm~5cm.
5. carbide drill piece according to claim 1, it is characterised in that the bottom of the oblique convex body with bore piece main body bottom
The vertical range in portion is 0.1cm~1cm.
6. carbide drill piece according to claim 1, it is characterised in that the horizontal width of the oblique convex body is 0.1cm
~3cm.
7. carbide drill piece according to claim 1, it is characterised in that the oblique convex body with bore connecing for piece subject plane
The vertical height of contacting surface is 2cm~15cm.
8. carbide drill piece according to claim 1, it is characterised in that the number of the oblique convex body is 2；Described 2
Individual oblique convex body is symmetrical along the rotating shaft center for boring piece main body.
9. carbide drill piece according to claim 1, it is characterised in that the anterior angle and relief angle of the brill piece body top
Form 1/3 Rectangular knife edge.
10. a kind of drill bit, it is characterised in that including bit matrix and bore piece；The brill piece is any one of claim 1~9 institute
The carbide drill piece stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278195.7U CN206263310U (en) | 2016-11-25 | 2016-11-25 | A kind of carbide drill piece and drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278195.7U CN206263310U (en) | 2016-11-25 | 2016-11-25 | A kind of carbide drill piece and drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206263310U true CN206263310U (en) | 2017-06-20 |
Family
ID=59041431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621278195.7U Expired - Fee Related CN206263310U (en) | 2016-11-25 | 2016-11-25 | A kind of carbide drill piece and drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206263310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511936A (en) * | 2017-09-13 | 2017-12-26 | 乐清大勇新工具有限公司 | A kind of hard alloy impact blade and drill hammer |
-
2016
- 2016-11-25 CN CN201621278195.7U patent/CN206263310U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511936A (en) * | 2017-09-13 | 2017-12-26 | 乐清大勇新工具有限公司 | A kind of hard alloy impact blade and drill hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20211125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |