CN207402739U - A kind of electric hammer drill of high-strength electric resistance welded welding - Google Patents
A kind of electric hammer drill of high-strength electric resistance welded welding Download PDFInfo
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- CN207402739U CN207402739U CN201721539706.0U CN201721539706U CN207402739U CN 207402739 U CN207402739 U CN 207402739U CN 201721539706 U CN201721539706 U CN 201721539706U CN 207402739 U CN207402739 U CN 207402739U
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- resistance welded
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Abstract
The utility model discloses a kind of electric hammer drills of high-strength electric resistance welded welding, and including drill body and head, the drill body uses steel material, and head uses alloy material；The connection plane that the top end face of the drill body is docked with the bottom face on head for cooperation, drill body and head docking are powered and both ends of the surface are made to form fusion pool and be connected as one.A kind of electric hammer drill of high-strength electric resistance welded welding of the utility model comes into contact in a large area connection by what solderless resistance-welding process realized drill body and head, has the characteristics that easy to process, bonding strength is high, service life is long.
Description
Technical field
The utility model is related to a kind of electric hammer drills, are specially a kind of electric hammer drill of high-strength electric resistance welded welding.
Background technology
The considerations of for processing effect, service life and processing cost, electric hammer drill is generally by drill body 1 ' and alloy sheet 2 '
Two parts combination is formed, and drill body 1 ' therein is process using steel, although low its of hardness has very big cost advantage,
And alloy sheet 2 ' is made of the alloy of hard high-strength, has good wear-resisting shape, can effectively promote the processing of drill bit
Efficiency and service life.
In practice, to realize that drill body 1 ' and the effective of alloy sheet 2 ' are connected, link slot need to be opened up on 1 ' top of drill body
11 ', then as solder 3 ' alloy sheet 2 ' is made to be realized in a manner of inlaying with link slot 11 ' copper bar by the use of soldering processes and connected
It connects, structure is as shown in Figure 1.In above processing, 1 ' top of drill body needs to slot, and addition scaling powder is needed before soldering, causes work
Skill long flow path and processing efficiency is low, and the contact surface most importantly between alloy sheet 2 ' and drill body 1 ' is fewer, and two
Rosin joint phenomenon is susceptible in person's brazing process, these can all seriously affect the bonding strength between alloy sheet 2 ' and drill body 1 ',
So that drill bit is easily broken during later stage use, the service life of drill bit has been seriously affected.
Utility model content
In view of the above-mentioned problems, a kind of electric hammer drill of high-strength electric resistance welded welding of the utility model, by solderless
Resistance-welding process realizes the contact connectio of large area, has the characteristics that easy to process, bonding strength is high, service life is long.
To achieve the above object, the utility model uses following technical scheme：
A kind of electric hammer drill of high-strength electric resistance welded welding, it is characterised in that：Including drill body and head, the drill body uses
Steel material, head use alloy material；The connection plane that the top end face of the drill body is docked with the bottom face on head for cooperation,
Drill body and head docking are powered and both ends of the surface are made to form fusion pool and be connected as one.
Further, above-mentioned apical head is yi word pattern or triangle or cross or X-type.
Further, above-mentioned drill body tail end is circle handle or square handle or hexagonal handle or staight shank.
The electric hammer drill of the utility model design, entire head is all using high intensity whole hard alloy, and head
Both connection Planar realizations for passing through docking with drill body come into contact in a large area connection.
Work in-process, drill body and head docking be powered, using resistance-welding process so that between both ends of the surface formed fusion pool and
Both make to be connected as one, total has that big joint face, welding open, processing technology are simple, finished product connection is strong
The characteristics of high is spent, processing efficiency can not only be promoted to a certain extent, main is the using effect that can be effectively promoted drill bit, is prolonged
The service life of long drill bit.
Description of the drawings
The dimensional structure diagram of Fig. 1, existing drill bit；
The dimensional structure diagram of Fig. 2, the utility model；
Fig. 3, the separated dimensional structure diagram of the utility model drill body and head.
Specific embodiment
As shown in Figures 2 and 3, a kind of electric hammer drill of high-strength electric resistance welded welding, including drill body 1 and head 2, the drill body
1 uses steel material, has the characteristics that hardness low cost is economical, and head 2 entirely uses high intensity whole hard alloy material.
The connection plane that the top end face 11 of the drill body 1 is docked with the bottom face 21 on head 2 for cooperation, so that 2 He of head
Both connection Planar realizations that drill body 1 passes through docking come into contact in a large area connection.
Drill body 1 and head 2 are docked energization by work in-process, using resistance-welding process so that forming melting between both ends of the surface
Pond and be seamlessly connected and be structure as a whole.The entire electric hammer drill machined, have between drill body 1 and head 2 joint face it is big,
The characteristics of open, rosin joint phenomenon are few, processing technology is simple, finished product bonding strength is high is welded, can not only be carried to a certain extent
Processing efficiency is risen, main is that can effectively promote bonding strength, promotes the using effect of drill bit, extends the service life of drill bit.
2 top 22 of head is yi word pattern or triangle or cross or X-type, illustrated above only with regard to the structure of yi word pattern
It illustrates, other kinds of apical head structure can be used as needed in actual use.
1 tail end 12 of drill body is circle handle or square handle or hexagonal handle or staight shank, the only just structure progress of circle handle illustrated above
Illustrate, other kinds of 1 end construction of drill body can be used as needed in actual use.
The above is only the better embodiment of the utility model, and not the utility model is made in any form
Limitation, every technical principle according to the utility model is to any simple modification made for any of the above embodiments, equivalent variations or repaiies
Decorations, in the range of still falling within technical solutions of the utility model.
Claims (3)
1. a kind of electric hammer drill of high-strength electric resistance welded welding, it is characterised in that：Including drill body and head, the drill body uses steel
Material material, head use alloy material；The connection plane that the top end face of the drill body is docked with the bottom face on head for cooperation is bored
Body and head docking are powered and both ends of the surface are made to form fusion pool and be connected as one.
2. a kind of electric hammer drill of high-strength electric resistance welded welding as described in claim 1, it is characterised in that：The apical head
For yi word pattern or triangle or cross or X-type.
3. a kind of electric hammer drill of high-strength electric resistance welded welding as described in claim 1, it is characterised in that：The drill body tail end
For circle handle or square handle or hexagonal handle or staight shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721539706.0U CN207402739U (en) | 2017-11-17 | 2017-11-17 | A kind of electric hammer drill of high-strength electric resistance welded welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721539706.0U CN207402739U (en) | 2017-11-17 | 2017-11-17 | A kind of electric hammer drill of high-strength electric resistance welded welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207402739U true CN207402739U (en) | 2018-05-25 |
Family
ID=62316687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721539706.0U Active CN207402739U (en) | 2017-11-17 | 2017-11-17 | A kind of electric hammer drill of high-strength electric resistance welded welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207402739U (en) |
-
2017
- 2017-11-17 CN CN201721539706.0U patent/CN207402739U/en active Active
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