CN105880693A - Flanging drill bit and welding process for drilling hole in copper tube by same - Google Patents
Flanging drill bit and welding process for drilling hole in copper tube by same Download PDFInfo
- Publication number
- CN105880693A CN105880693A CN201410715780.8A CN201410715780A CN105880693A CN 105880693 A CN105880693 A CN 105880693A CN 201410715780 A CN201410715780 A CN 201410715780A CN 105880693 A CN105880693 A CN 105880693A
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- China
- Prior art keywords
- drill bit
- cutter head
- flange
- flanging
- hole
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Abstract
The invention relates to a flanging drill bit and a welding process for drilling a hole in a copper tube by the same. The drill bit comprises a clamping handle, a cutter head part, and an extruding part which is connected between the clamping handle and the cutter head part, wherein the cutter head part is a columnar body of which the bottom part is provided with a blade; the upper end of the cutter head part is cylindrical, and the lower end of the cutter head is provided with an inwards-concaved groove of which the wall forms the blade; the extruding part is in a shape of a circular platform according to the design; the thick end of the extruding part is connected with the clamping handle, and the thin end of the extruding part is connected with the cutter head part; the diameter ratio of the thick end to the thin end is in direct proportion to the flanging quantity of flanging holes. The operation process comprises the following steps: drilling a through hole; extruding; flanging; and welding. The flanging drill bit and the welding process have the beneficial effects that four sides of the wall of the through hole in the tube wall are flanged through the disc-platform-shaped extruding part of the drill bit, so that the contact area of welding parts of a branch tube and a main tube can be increased, and as a result, the welding strength can be improved.
Description
Technical field
The present invention relates to a kind of flange drill bit and the welding procedure using this drill bit to punch on copper pipe.
Background technology
At present condenser copper tube is connected by being welded to each other between bypass line with main road pipeline, its method of attachment is the most all to use normal drill bit to hole on supervisor's copper pipe, then arm copper pipe is inserted in the hole and carry out periphery welding, use the copper pipe of this processes, its pad is usually present because copper pipe tube wall is thin, and copper pipe hole wall welds contact surface deficiency with copper pipe, and forms the problem that Joint Strength is not enough, thus in use it being likely to occur leakage problem so that whole condenser is scrapped.
Summary of the invention
In order to overcome the structural strength problem being welded to each other existence between existing copper pipe, the present invention provide a kind of flange drill bit and use this drill bit punch on copper pipe welding technique.
The technical solution used in the present invention is: a kind of flange drill bit includes: the press section between grip shank, cutter head portion and connection grip shank and cutter head portion.
In order to drill through a perforation on duct wall, described cutter head portion is the cylinder that bottom is provided with blade；Upper end can be in cylinder, and lower end is provided with the groove concaved, and its groove cell wall forms blade.
In order to realize keyhole periphery to form flange, described press section is designed as truncated conical shape, and its butt end connects grip shank, and taper end connects cutter head portion, and it is thick, taper end diameter ratio is directly proportional to the flange amount of flanging bore.
In order to be connected with motor by this flange drill bit, by driven by motor, it rotates, and described grip shank is set to cylinder or tri-prismoid, for gripping apparatus grips.
For completing to be responsible for tube wall perforation, hole peripheral bead and the connection with arm, its operating procedure comprises the following steps:
(1) flange drill bit is clamped on driving instrument carries out high speed rotating, be then aligned with the boring of main road pipeline；
(2) in boring procedure, main road pipeline is first drilled through a perforation by the cutter head portion of flange drill bit in advance, afterwards turn over the press-in perforation of drill bit press section and carry out contact friction, make perforation hole wall surrounding hot mastication, in hole wall softening process, hole wall is gradually extruded by drill bit press section, and its softening portion deforms upon and forms flanging bore so that the top and the bottom in hole produce flange；
(3) bypass line is inserted in flanging bore and carry out soldering.
Beneficial effects of the present invention is embodied in: the press section of the truncated conical shape of drill bit makes the perforation hole wall surrounding on tube wall produce flange, increases the contact area of arm and supervisor's weld, improves weld strength.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flange drill bit of the present invention；
Fig. 2 is the copper pipe hole wall figure after the flange bit bore using the present invention.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the flange drill bit of the present invention includes: grip shank 1, drives motion in order to be rotated the gripping apparatus grips of instrument；Cutter head portion 2, holes for workpiece to be machined；And connect the press section 3 between grip shank 1 and cutter head portion 2, in order to contact friction borehole circumference material so that it is produce hot mastication and be extruded into flanging bore.
Its grip shank 1 may select cylinder or tri-prismoid, and it is in order to be rotated the gripping apparatus grips of instrument, thus drives press section and cutter head movement.
Its cutter head portion 2 is provided with the cylinder of blade for bottom, and its upper end can be in cylinder, and lower end is provided with the groove 21 concaved, and its groove cell wall forms blade 22；Its upper end also can be in prismatic, and lower end groove can be hemispherical or taper.
Its press section 3 is designed as truncated conical shape, and its butt end connects grip shank 1, and taper end connects cutter head portion 2, and it is thick, taper end diameter ratio is directly proportional to the flange amount of flanging bore.According to the pipe thickness of body, the truncated cone-shaped press section of optional differing tilt angles so that flange amount increases as required or reduces.
Utilizing above-mentioned flange drill bit to punch on copper pipe and the technique of connecting branch, including drilling the steps such as hole, extruding, flange, welding, it is specific as follows:
A. flange drill bit is clamped on driving instrument, drives flange drill bit to carry out high speed rotating by electrode, be then aligned with main road pipeline 4 and drill through a perforation；
B. afterwards turn over the press section 3 of drill bit to be pressed into perforation and carry out contact friction, make perforation hole wall surrounding hot mastication, in hole wall softening process, hole wall is gradually extruded by drill bit press section 3, and its softening portion deforms upon and forms flanging bore so that the top and the bottom in hole produce flange 41；
C. bypass line 5 is inserted in the flanging bore of main road pipeline 4 and carry out soldering.
It is described above for the embodiment of the present invention, but the present invention is not intended to be limited to be described above and the embodiment of accompanying drawing signal.The feature described about an embodiment is equally applicable to other embodiments of the invention, and the feature of different embodiments can be bound to each other to form new embodiment.In the case of without departing from the spirit and scope being defined by the below claims, those skilled in the art can carry out various amendment and variation to above-described embodiment.
Claims (4)
1. a flange drill bit, it is characterised in that including: grip shank (1), cutter head portion (2) and connection
Press section (3) between grip shank (1) and cutter head portion (2)；
Described cutter head portion (2) is the cylinder that bottom is provided with blade；
Described press section (3) is designed as truncated conical shape, and its butt end connects grip shank (1), and taper end connects cutter
Head (2), it is thick, taper end diameter ratio is directly proportional to the flange amount of flanging bore.
A kind of flange drill bit the most according to claim 1, it is characterised in that: on described cutter head portion (2)
End is in cylinder, and lower end is provided with the groove (21) concaved, and its groove cell wall forms blade (22).
A kind of flange drill bit the most according to claim 1, it is characterised in that: described grip shank (1) is
Cylinder or tri-prismoid.
4. the welding procedure that flange drill bit punches on copper pipe, it is characterised in that comprise the following steps:
A. flange drill bit is clamped on driving instrument and carries out high speed rotating, be then aligned with main road pipeline (4) and bore
Hole；
B., in boring procedure, main road pipeline (4) is first drilled through one and wears by the cutter head portion (2) of flange drill bit in advance
Hole, afterwards turns over drill bit press section (3) press-in perforation and carries out contact friction, make perforation hole wall surrounding high temperature soft
Changing, in hole wall softening process, hole wall is gradually extruded by drill bit press section (3), and its softening portion deforms upon
The top and the bottom making hole produce flange and form flanging bore (41)；
C. bypass line (5) is inserted in flanging bore (41) and carry out soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715780.8A CN105880693A (en) | 2014-12-03 | 2014-12-03 | Flanging drill bit and welding process for drilling hole in copper tube by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715780.8A CN105880693A (en) | 2014-12-03 | 2014-12-03 | Flanging drill bit and welding process for drilling hole in copper tube by same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105880693A true CN105880693A (en) | 2016-08-24 |
Family
ID=56699376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410715780.8A Pending CN105880693A (en) | 2014-12-03 | 2014-12-03 | Flanging drill bit and welding process for drilling hole in copper tube by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105880693A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611067Y (en) * | 2003-03-13 | 2004-04-14 | 山东豪迈机械科技有限公司 | Tool for making turnup thin metal tube |
| US6889435B1 (en) * | 2002-05-06 | 2005-05-10 | Dana Corporation | Attachment of metal components by thermal drilling |
| CN201040322Y (en) * | 2007-06-15 | 2008-03-26 | 叶鹏飞 | Pipe wall drilling flanging device |
| CN102500797A (en) * | 2011-12-19 | 2012-06-20 | 芜湖中瑞汽车零部件有限公司 | Tool for processing threaded hole on thin-wall pipe and processing method thereof |
| CN203003224U (en) * | 2012-12-25 | 2013-06-19 | 上海世德子汽车零部件有限公司 | Drilling bit used for iron water tube drilling |
| CN103920902A (en) * | 2014-04-25 | 2014-07-16 | 李伟民 | Method for machining flange of drill hole of pipe |
| CN204248044U (en) * | 2014-12-03 | 2015-04-08 | 孙惊 | A kind of flange drill bit |
-
2014
- 2014-12-03 CN CN201410715780.8A patent/CN105880693A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6889435B1 (en) * | 2002-05-06 | 2005-05-10 | Dana Corporation | Attachment of metal components by thermal drilling |
| CN2611067Y (en) * | 2003-03-13 | 2004-04-14 | 山东豪迈机械科技有限公司 | Tool for making turnup thin metal tube |
| CN201040322Y (en) * | 2007-06-15 | 2008-03-26 | 叶鹏飞 | Pipe wall drilling flanging device |
| CN102500797A (en) * | 2011-12-19 | 2012-06-20 | 芜湖中瑞汽车零部件有限公司 | Tool for processing threaded hole on thin-wall pipe and processing method thereof |
| CN203003224U (en) * | 2012-12-25 | 2013-06-19 | 上海世德子汽车零部件有限公司 | Drilling bit used for iron water tube drilling |
| CN103920902A (en) * | 2014-04-25 | 2014-07-16 | 李伟民 | Method for machining flange of drill hole of pipe |
| CN204248044U (en) * | 2014-12-03 | 2015-04-08 | 孙惊 | A kind of flange drill bit |
Non-Patent Citations (1)
| Title |
|---|
| 冯利等: "冲孔翻边技术在制冷系统铜管加工中的应用", 《机械研究与应用 》 * |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |