CN203109359U - Expanding welding reamer - Google Patents
Expanding welding reamer Download PDFInfo
- Publication number
- CN203109359U CN203109359U CN 201320002130 CN201320002130U CN203109359U CN 203109359 U CN203109359 U CN 203109359U CN 201320002130 CN201320002130 CN 201320002130 CN 201320002130 U CN201320002130 U CN 201320002130U CN 203109359 U CN203109359 U CN 203109359U
- Authority
- CN
- China
- Prior art keywords
- cutter portion
- shank
- reamer
- expanding
- knife portion
- 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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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model belongs to the technical field of mechanical machining and relates to an expanding welding reamer which comprises a handle portion, a knife portion and a blade welded at the top end of the knife portion. The knife portion is of a hollow structure. The handle portion and the knife portion are connected through a columnar pin in a close fit mode. A core shaft is arranged in an inner hole of the knife portion and matched with the top end of the inner hole through a cone face. A slant face is arranged at the bottom of the core shaft. A threaded hole is formed in a place, corresponding to the slant face, of the knife portion. A top cone screw is arranged in the threaded hole and adhered to the slant face at the bottom of the core shaft. After the expanding welding reamer is used for a period and the blade is worn out, the top end of the knife portion can be expanded open by adjusting a contraction quantity of the top cone screw and get ground for use. The service life is prolonged and meanwhile, production cost is reduced.
Description
Technical field
The utility model belongs to the Machining Technology field, is specifically related to a kind of expanding welding reamer.
Background technology
In machining, usually use the processing of welded type reamer, the precision of the workpiece hole that requirement is cut with scissors out is very high, error is very little, present reamer all comprises shank, handle of a knife and blade mostly, its weak point is: the one, and reamer is behind the hole of having cut with scissors some, and the outer surface of blade can wear and tear gradually, can not guarantee the precision of workpiece to be machined; The 2nd, the life-span of existing reamer is short, reamer wears up to undesirable back and just will scrap, waste a large amount of carbide-tipped reamers, not only cause the raising of raw-material waste and enterprise's production cost, even do not scrap, also the blade of after the reamer heating wolfram steel being made to be moved outward the required precision that blade abrasion is extremely needed after cooling, not only lose time, processing charges are also very big.
The utility model content
The purpose of this utility model is for solving the problem of above-mentioned existence, and a kind of expanding welding reamer is provided, and reconditioning blade size repeatedly prolongs service life of welded type reamer.
For achieving the above object, technical solution adopted in the utility model is:
A kind of expanding welding reamer, comprise shank, cutter portion and be welded on cutter portion top blade, described shank and cutter portion are provided with the through hole of mutual correspondence, cooperate by straight pin, described cutter portion is hollow structure, is provided with mandrel in the cutter portion, cone match is passed through on mandrel top and cutter portion endoporus top, described mandrel bottom is provided with an inclined-plane, and the corresponding described incline position of cutter portion has screw, and the inclined-plane that is provided with addendum cone screw and mandrel bottom in the screw fits.
Described cutter portion top has at least one open slot.
Described shank through hole center and shank end face distance are A, and the through hole center in the described cutter portion and cutter portion bottom distance be A-0.1, employing straight pin tight fit.
Described shank can adopt any one shank structure of the world or national standard.
Adopt technique scheme, obtained beneficial effect is:
The utility model expanding welding reamer after the blade wearing and tearing, axially promotes to rely on awl core distending blade with mandrel, can continue reconditioning blade size, thereby repeatedly reconditioning is used, and has prolonged the service life of welded type reamer, reduces production costs greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model expanding welding reamer.
Fig. 2 is shank structural representation of the present utility model.
Fig. 3 is cutter of the present utility model portion structural representation.
Fig. 4 is the side-looking structural representation of Fig. 3.
Fig. 5 is the structural representation of mandrel of the present utility model.
The specific embodiment
Referring to Fig. 1 ~ 5,1 is that shank, 2 is that cutter portion, 3 is that mandrel, 4 is that addendum cone screw, 5 is that shank through hole, 6 is that cutter portion through hole, 7 is blade among the figure, and 8 is the shank end face, and 9 is open slot.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.
As Fig. 1 ~ 5, the utility model expanding welding reamer, comprise shank 1, cutter portion 2 and be welded on the blade 7 on cutter portion 2 tops, be respectively equipped with shank through hole 5 and cutter portion through hole 6 in shank 1 and the cutter portion 2, connect by straight pin, the distance of shank through hole 5 centers and shank end face 8 is A, and described cutter portion's through hole 6 and cutter portion bottom surface distance are A-0.1, form tight fit.Described cutter portion 2 is hollow structure, be provided with mandrel 3 in the endoporus, mandrel 3 and the little matched in clearance of the cutter portion endoporus top employing conical surface, mandrel 3 bottoms are provided with an inclined-plane, cutter portion 2 is provided with screw at corresponding mandrel 3 incline positions, by addendum cone screw 4 positions of control mandrel in endoporus, can prevent that also mandrel from rotating, cutter portion 2 tops offer at least one open slot 9, after expanding welding reamer uses a period of time wearing and tearing, by regulating the stroke of addendum cone screw 4, and then distending cutter portion top, again the blade 7 of polishing can repeat repeatedly to use, repeatedly polishing prolongs the service life that expanding welds reamer.
Claims (4)
1. an expanding welds reamer, comprise shank, cutter portion and be welded on cutter portion top blade, it is characterized in that described shank and cutter portion are provided with the through hole of mutual correspondence, cooperate by straight pin, described cutter portion is hollow structure, be provided with mandrel in the cutter portion, mandrel top and cutter portion endoporus top are by cone match, and described mandrel bottom is provided with an inclined-plane, the corresponding described incline position of cutter portion has screw, and the inclined-plane that is provided with addendum cone screw and mandrel bottom in the screw fits.
2. expanding according to claim 1 welding reamer is characterized in that, described cutter portion top has at least one open slot.
3. expanding according to claim 1 welding reamer is characterized in that described shank through hole center and shank end face distance are A, and the through hole center in the described cutter portion and cutter portion bottom be apart from being A-0.1, employing straight pin tight fit.
4. expanding welding reamer according to claim 1 is characterized in that described shank can adopt any one shank structure of the world or national standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002130 CN203109359U (en) | 2013-01-05 | 2013-01-05 | Expanding welding reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002130 CN203109359U (en) | 2013-01-05 | 2013-01-05 | Expanding welding reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203109359U true CN203109359U (en) | 2013-08-07 |
Family
ID=48889735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320002130 Expired - Fee Related CN203109359U (en) | 2013-01-05 | 2013-01-05 | Expanding welding reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203109359U (en) |
-
2013
- 2013-01-05 CN CN 201320002130 patent/CN203109359U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20160105 |