CN201040322Y - Pipe wall drilling flanging device - Google Patents
Pipe wall drilling flanging device Download PDFInfo
- Publication number
- CN201040322Y CN201040322Y CNU2007200528268U CN200720052826U CN201040322Y CN 201040322 Y CN201040322 Y CN 201040322Y CN U2007200528268 U CNU2007200528268 U CN U2007200528268U CN 200720052826 U CN200720052826 U CN 200720052826U CN 201040322 Y CN201040322 Y CN 201040322Y
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- CN
- China
- Prior art keywords
- drill bit
- revolving part
- central revolving
- rotary part
- bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pipe wall drilling riveting device, which comprises a twist drill bit, a central rotary part, a pair of pulling rods, an inertia regulating bowl, a fixing screw, a spring, a shaft retaining ring and a self locking screw cap, the twist drill bit penetrates through the center hole of the central rotary part and is extended out of the end surface with a certain length, the pair of pulling rods sleeved with the spring and fixed with the shaft retaining ring penetrate respectively through the two crossing holes on the cone face of the central rotary part, and is extended with certain length pressing firmly against the rotary groove of the drill bit, the central rotary part is fixed on the special made twist drill bit; the inertia regulating bowl is placed from the screw thread end of the central rotary part; according the technology scheme, the utility model prolongs the service time by tens or even hundreds times; when the drill bit is needed to be sharpened, the central rotary part is released and the special made twist drill bit is taken, like the common drill bit being able to drill repeatedly, the utility model realized continuous work on the mass production line.
Description
Technical field:
The utility model relates to a kind of tube wall boring hemmer, is used for flange (also claiming the to bore pulling eye) processing of holing of the tube wall of pipe type element more.As flute type pipe, the T type pipe of air-conditioning industry, be particularly suitable for alternate manner and be difficult to the straight tube of the less caliber of processing or the boring flange of bend pipe etc. automatically.
Background technology:
The existing hemmer that can carry out tube wall boring flange (Fig. 1) processing with purposes, as certain type pulling eye flange device (Fig. 2,3), it is boring hemmer advanced in the present same industry, but complex structure, cost an arm and a leg, its drill bit is a kind of special non-spiral bit, is designed to structure with holes, and the hole is very near from the drill bit blade, almost be the mode of disposable sharpening, the repeated use life-span is restricted.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, with low cost, and long service life can repeatedly repeat the boring hemmer of sharpening as common drill bit, can produce continuous operation on the line in enormous quantities.
For achieving the above object, the technical scheme that provides of the utility model is:
A kind of boring hemmer is regulated bowl, dog screw and spring, shaft block ring and self-locking nut by special spiral bit, central revolving part, a pair of pulling eye rod, inertia and is formed.The helicla flute of special spiral bit is different with common spiral bit, and its helicla flute angle is 40 °～55 °, and the thickness of chisel edge is (0.05～0.2) * bit diameter.Special spiral bit is pierced in the centre bore of central revolving part and stretch out the end face certain-length, a pair of cover upper spring and the pulling eye rod of loading onto shaft block ring, pass cross one another two holes on the central revolving part conical surface respectively, and the helicla flute that nestles up drill bit stretches out suitable length, more central revolving part is fixed on the special spiral bit.Then, inertia is regulated the end of thread screw-in of bowl from central revolving part, when the inner conical surface of inertia adjusting bowl is pushed down the termination of a pair of pulling eye rod downwards, regulate bowl and screw in or screw out because of the active force of rotator inertia (can attached beyond frictional force) along with inertia, what a pair of pulling eye rod was promptly correspondingly cross-shaped stretches out or withdraw (spring force).
The end of thread at central revolving part is equipped with self-locking nut, regulates the upper limit position of bowl in order to adjusting and qualification inertia, thereby has regulated the retracted position of a pair of pulling eye rod; On central revolving part, dog screw is housed, regulates the lower position of bowl in order to adjusting and qualification inertia, thereby regulated the extended position of a pair of pulling eye rod.
By above technical scheme, become tens of times even hundred times of ground prolongations service life of the present utility model.When needs sharpening drill bit again, unclamp central revolving part, take off special spiral bit, can repeat repeatedly sharpening as common drill bit, can produce continuous operation on the line in enormous quantities.
Description of drawings:
Fig. 1: the cutaway view of pipe tap and pipe tap flange;
Fig. 2: the profile schematic diagram during certain type pulling eye flange device boring;
Profile schematic diagram when Fig. 3, certain type pulling eye flange device flange;
The schematic diagram of Fig. 4, tube wall boring hemmer;
The schematic diagram of Fig. 5, special spiral bit;
The cutaway view of Fig. 6, special spiral bit;
Schematic diagram when Fig. 7, the boring of tube wall boring hemmer;
Schematic diagram when Fig. 8, tube wall boring hemmer flange.
The specific embodiment:
See shown in the accompanying drawing 4～8 that a kind of boring hemmer is regulated bowl 4, dog screw 5 and spring 6, shaft block ring 7 and self-locking nut 8 by special spiral bit 1, central revolving part 2, a pair of pulling eye rod 3, inertia and formed.The helicla flute of special spiral bit 1 is different with common spiral bit, and its helicla flute angle is 45 °, and the thickness of chisel edge is 0.1 * bit diameter.Special spiral bit 1 is pierced in the centre bore of central revolving part 2 and stretch out end face certain-length (it is different with the size of wall thickness to look caliber), a pair of cover upper spring 6 and the pulling eye rod 3 of loading onto shaft block ring 7, pass cross one another two holes on central revolving part 2 conical surfaces respectively, and the helicla flute that nestles up spiral bit stretches out suitable length (looking the size of flange diameter and difference), more central revolving part 2 is fixed on the special spiral bit 1.Then, inertia is regulated the end of thread screw-in of bowl 4 from central revolving part 2, when the inner conical surface of inertia adjusting bowl 4 is pushed down the termination of a pair of pulling eye rod 3 downwards, regulate bowl 4 active forces because of rotator inertia (can attached beyond frictional force) and screw in or screw out along with inertia, what a pair of pulling eye rod 3 was promptly correspondingly cross-shaped stretches out or withdraw (leaning on spring 6 elastic force).
The end of thread at central revolving part 2 is equipped with self-locking nut 8, regulates the upper limit position of bowl 4 in order to adjusting and qualification inertia, thereby has regulated the retracted position of a pair of pulling eye rod 3, generally its adjusting is retracted in spiral bit 1 diameter, gets final product not influence boring; On central revolving part 2, dog screw 5 is housed, in order to regulate and to limit the lower position that inertia is regulated bowl 4, thereby regulated the extended position of a pair of pulling eye rod 3, generally its adjusting has been extend out to beyond spiral bit 1 diameter, made it be issued to the size of required flange diameter at rotation status.
During work,, clamp on the machine of forward and backward power the hole drillstock of special spiral bit 1 of hemmer of the utility model.When start is just being changeed, the inertia of boring hemmer regulate bowl 4 because of action of inertia power around central revolving part 2 counter-rotatings and on lift, make diameter that a pair of pulling eye rod 3 correspondingly is retracted to spiral bit 1 with interior certain position, along with the rotation of spiral bit 1 and move down, then tube wall has been implemented boring; When the saturating tube wall of bit drills and after extending into certain size, the start counter-rotating, the inertia adjusting bowl 4 of boring hemmer is just changeing around central revolving part 2 because of action of inertia power and is pressing down, make certain position beyond the correspondingly outer diameter that extends spiral bit 1 of a pair of pulling eye rod 3, along with the rotation of spiral bit 1 and on move, reach cross-shaped open a pair of pulling eye rod 3 beyond the bit diameter, because of its rotation synchronously and on move, thereby the flange operation has been implemented at the boring position of tube wall.
When needs sharpening drill bit again, unclamp central revolving part 2, take off special spiral bit, repeat repeatedly sharpening as common drill bit, then can continuous operation on production line.
The foregoing description is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all structural principles according to the utility model, structure and composition are done changes, all is covered by in the protection domain of the present utility model.
Claims (3)
1. tube wall boring hemmer, include spiral bit, central revolving part, a pair of pulling eye rod, inertia adjusting bowl, dog screw and spring, shaft block ring and self-locking nut, it is characterized in that: spiral bit pierces in the centre bore of central revolving part and stretches out the end face certain-length, a pair of cover upper spring and the pulling eye rod of loading onto shaft block ring, the helicla flute that passes cross one another two holes on the central revolving part conical surface respectively and nestle up drill bit stretches out suitable length, and central revolving part is fixed on the special spiral bit; Inertia is regulated the end of thread screw-in of bowl by central revolving part.
2. tube wall boring hemmer according to claim 1, it is characterized in that: the end of thread at central revolving part is equipped with self-locking nut, on central revolving part dog screw is housed.
3. tube wall boring hemmer according to claim 1, it is characterized in that: the spiral fluted helicla flute angle of spiral bit is 40 °～55 °, and the thickness of chisel edge is 0.05～0.2 * bit diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200528268U CN201040322Y (en) | 2007-06-15 | 2007-06-15 | Pipe wall drilling flanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200528268U CN201040322Y (en) | 2007-06-15 | 2007-06-15 | Pipe wall drilling flanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201040322Y true CN201040322Y (en) | 2008-03-26 |
Family
ID=39252029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200528268U Expired - Fee Related CN201040322Y (en) | 2007-06-15 | 2007-06-15 | Pipe wall drilling flanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201040322Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611971A (en) * | 2013-11-13 | 2014-03-05 | 上海三达汽车配件有限公司 | Drilling and flanging tool |
| CN105880693A (en) * | 2014-12-03 | 2016-08-24 | 孙惊 | Flanging drill bit and welding process for drilling hole in copper tube by same |
-
2007
- 2007-06-15 CN CNU2007200528268U patent/CN201040322Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611971A (en) * | 2013-11-13 | 2014-03-05 | 上海三达汽车配件有限公司 | Drilling and flanging tool |
| CN105880693A (en) * | 2014-12-03 | 2016-08-24 | 孙惊 | Flanging drill bit and welding process for drilling hole in copper tube by same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20100615 |