CN201889550U - Expanding and reaming extrusion tool - Google Patents
Expanding and reaming extrusion tool Download PDFInfo
- Publication number
- CN201889550U CN201889550U CN2010206274093U CN201020627409U CN201889550U CN 201889550 U CN201889550 U CN 201889550U CN 2010206274093 U CN2010206274093 U CN 2010206274093U CN 201020627409 U CN201020627409 U CN 201020627409U CN 201889550 U CN201889550 U CN 201889550U
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- reamer
- reaming
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- hole
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Abstract
The utility model discloses an expanding and reaming extrusion tool, which comprises a reamer section for precision reaming and also comprises a pre-reaming hole cutting edge section located at the front end of the reamer section; the pre-reaming hole cutting edge section and a cutting edge of the reamer section are coaxial; the diameter of the pre-reaming hole cutting edge section is less than that of the reamer section; the difference of the diameters of the reamer section and the pre-reaming hole cutting edge section is 0.06 to 0.20mm; and the width of the excircle rounded edge of the pre-reaming hole cutting edge section is 0.8 to 1.2mm. The expanding and reaming extrusion tool also comprises a rear guiding section; the rear guiding section is located at the rear end of the reamer section; the diameter of the reamer section is greater than that of the rear guiding section; and the difference of the diameters of the reamer section and the rear guiding section is 0.005mm. The processing accuracy of a hole is higher by the structural design and the dimension design of the expanding and reaming extrusion tool, and moreover, the service life of the tool can be effectively prolonged and the processing efficiency is improved.
Description
Technical field
The utility model relates to a kind of machining tool, and particularly a kind of hinge-squeezed cutter of expansion that is used for the machining high-precision hole, this high accurate hole be cylindricity, the roughness deep and long hole of having relatively high expectations especially.
Background technology
Reamer is applied to the hole class manufacture field of degree of precision on the metal material, and for example engine, gearbox, lathe, automobile or the like machinery manufacturing industry needs only porose this technology that all needs.
Part with automobile engine is an example, and along with development of science and technology, the required precision of processing is more and more higher, and the precision of machining hole is strict especially.Its material is generally softer materials such as aluminium, cast iron.As Fig. 1 is the structure of the present traditional reamer that uses, and is divided into cutter head 1 ' and guide section 2 ' (cutter hub).Cutter head 1 ' directly acts on the workpiece, and processing is portalled; Guide section 2 ' and fairlead matched in clearance play guiding.During the processing deep and long hole, the point of a knife of cutter head 1 ' and the actual guide section that play the guiding role 2 ' distance are long, the slight vibration that in lathe-anchor clamps-tooling system, produces, the meeting aggravation has influence on the working angles of the point of a knife of cutter head 1 ', embody that the hole precision of cutting with scissors out is not high, roughness is bad, cylindricity is poor.
The tradition reamer in fraising, particularly finish ream larger aperture (〉=φ 25mm), than slotted hole (〉=50mm) time, also exist a lot of not enough:
1, traditional reamer generally has only one section alloy cutting edge, and the surface roughness in the hole of cutting with scissors out is not high, generally can not keep in the Ra1.6 for a long time.
2, traditional reamer is because there is one section guide section that leads with the fairlead matched in clearance, the size instability in the hole of processing, can only reach the precision of H9, the circularity in hole and tapering can only reach 0.01mm, if finish ream larger aperture (〉=φ 25mm), than slotted hole (〉=50mm) time, the circularity in hole is greater than 0.015, and tapering is greater than 0.015.
3, traditional reamer is at position and the fairlead in the processed hole of processing during apart from long hole; the vibration that cutter-anchor clamps-machine tool system produces just is directly reflected into the surface in processed hole; through the cut of one section one section of regular meeting's appearance, cause the cylindricity in hole poor in the hole, roughness does not conform to.
4, traditional reamer is not worn for avoiding fraising because have only one section cutting edge, often stays final ream surplus bigger, and monolateral surplus is greater than 0.25mm.Big allowance aggravates the wearing and tearing to cutter, the continuous usefulness of can not refacing again substantially, and cutter life is shorter, the cost height.
The utility model content
The utility model is in order to overcome defective in the above-mentioned prior art, by the structure and the size design of pre-fraising blade section, reamer section and back guide section, makes that the machining accuracy in hole is higher and can effectively improve cutter life, improve working (machining) efficiency.
The hinge-squeezed cutter of a kind of expansion of the present utility model, comprise the reamer section that is used to finish ream, also comprise the pre-fraising blade section that is positioned at described reamer section front end, pre-fraising blade section is coaxial with the cutting edge of reamer section, the diameter of pre-fraising blade section is less than reamer section diameter, and the difference in diameter of reamer section and pre-fraising blade section is 0.06 to 0.20mm.
Wherein, ream the in advance outer round tread degree of blade section is 0.8 to 1.2mm.
Wherein, expand hinge-squeezed cutter and also comprise the back guide section, back guide section is positioned at the rear end of reamer section, and the diameter of reamer section is greater than the diameter of back guide section, and the difference in diameter of reamer Duan Yuhou guide section is 0.005mm.
Wherein, ream the in advance blade of blade section, reamer section and back guide section is the alloy blade along circumferential equally distributed welding.
Compared with prior art, the utlity model has following beneficial effect:
1, use the hinge-squeezed cutter of expansion of the present utility model to carry out hole class processing, the hole surface quality is good, and roughness is controlled in Ra1.6; Hole precision height after the processing, circularity and tapering are controlled in 0.008mm;
2, ream in advance that the blade section can be removed most of surplus and reamer section chipping allowance seldom, the blade section 1 that reams in advance can be removed the surplus of the monolateral 1.0mm of reaching;
3, ream in advance self guide effect of blade section and back guide section, but the slight vibration of the elimination reamer section of essence is to the influence of fraising;
4, guide section can produce the effect of slight friction, roll extrusion to the bore area after the processing, can further improve the precision in hole;
5, ream in advance blade section and reamer section is coaxial setting, and with the hole of pre-fraising blade section processing as guiding, can guarantee that reamer section processing part hinge wears, effectively avoid bad product to produce;
6, can reduce middle reaming operation, effectively improve the hole working (machining) efficiency.
Description of drawings
Fig. 1 is the structural representation of reamer in the prior art;
Fig. 2 is the structural representation that the utility model expands hinge-squeezed cutter.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
1 '-cutter head, 2 '-cutter hub guide section;
The 1-blade section that reams in advance, 2-reamer section, guide section behind the 3-, 4-cutter hub.
The specific embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of the specific embodiment.
As shown in Figure 2, the hinge-squeezed knife structure of expansion of the present utility model, comprise cutter hub 4, be welded with the pre-fraising blade section 1 of a plurality of carbide-tipped cutter bits at the leading section of cutter hub 4, mid portion is the multiple-cutting-edge reamer section 2 that is welded with a plurality of carbide-tipped cutter bits, then connects the back guide section 3 of one section a plurality of alloy blade of welding.The diameter of the blade section 1 that wherein reams in advance is d, and reamer section diameter is D, and back guide section diameter is D0.The pass is: D-d=0.06～0.20mm; D-D0 ≈ 0.005mm.
The utility model adopts the welded type multiple-cutting-edge blade section 1 that reams in advance, it is reaming cutter, cylindrical keeps bigger round tread degree 0.8～1.2mm, entering in the processed hole one section degree of depth in pre-reamer head cutting just can correctly guide reamer section 2 to enter later to finish ream, the great circle sword of the blade section that at this time reams in advance plays centering pilot, remove most of reaming allowance simultaneously, only stay the very little surplus of finally finish reaming of 0.06mm～0.20mm to give the reamer section 2 processing, make the wearing and tearing of reamer section 2 drop to minimum, prolonged the life-span of reamer section.Reamer section 2 is finish-machined to dimension D, because two sections cutting edges are coaxial compound cuttves, two sections blades are concentric, has fundamentally eliminated and has cut with scissors partially or the hidden danger of can not cutting with scissors.
Use the hinge-squeezed cutter of expansion of the present utility model to carry out hole class processing, the hole surface quality is good, and roughness is controlled in Ra1.6; Pre-fraising blade section 1 remove most of surplus and reamer section 2 chipping allowances seldom, the most direct self guide effect of pre-simultaneously fraising blade section 1 and back guide section 3, the slight vibration of the elimination reamer section 2 of essence is to the influence of fraising; Hole precision height after the processing, circularity and tapering are controlled in 0.008mm, and the bore area after 3 pairs of processing of guide section produces the effect of slight friction, roll extrusion, can further improve the precision in hole; Pre-fraising blade section 1 and reamer section 2 be coaxial setting, and with the hole of pre-fraising blade section 1 processing as guiding, can guarantee that reamer section 2 processing parts hinge wears, effectively avoid bad product generation; The reaming operation effectively improved the hole working (machining) efficiency in the middle of the utility model can reduce; Pre-fraising blade section 1 can be removed the surplus of the monolateral 1.0mm of reaching.
More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (4)
1. one kind is expanded hinge-squeezed cutter, comprise the reamer section that is used to finish ream, it is characterized in that, also comprise the pre-fraising blade section that is positioned at described reamer section front end, pre-fraising blade section is coaxial with the cutting edge of reamer section, the diameter of pre-fraising blade section is less than reamer section diameter, and the difference in diameter of reamer section and pre-fraising blade section is 0.06 to 0.20mm.
2. the hinge-squeezed cutter of expansion according to claim 1 is characterized in that, the outer round tread degree of described pre-fraising blade section is 0.8 to 1.2mm.
3. the hinge-squeezed cutter of expansion according to claim 1 and 2, it is characterized in that the hinge-squeezed cutter of described expansion also comprises the back guide section, back guide section is positioned at the rear end of described reamer section, the diameter of reamer section is greater than the diameter of back guide section, and the difference in diameter of reamer Duan Yuhou guide section is 0.005mm.
4. the hinge-squeezed cutter of expansion according to claim 1 and 2 is characterized in that, the blade of described pre-fraising blade section, reamer section and back guide section is the alloy blade along circumferential equally distributed welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206274093U CN201889550U (en) | 2010-11-23 | 2010-11-23 | Expanding and reaming extrusion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206274093U CN201889550U (en) | 2010-11-23 | 2010-11-23 | Expanding and reaming extrusion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889550U true CN201889550U (en) | 2011-07-06 |
Family
ID=44219026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206274093U Expired - Fee Related CN201889550U (en) | 2010-11-23 | 2010-11-23 | Expanding and reaming extrusion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201889550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476224A (en) * | 2010-11-23 | 2012-05-30 | 广西玉柴机器股份有限公司 | Expanding-reaming-extruding cutter |
| CN103521844A (en) * | 2012-07-06 | 2014-01-22 | 北汽福田汽车股份有限公司 | Expanding and reaming composite machining tool and method for machining engine cylinder block tappet rod holes |
-
2010
- 2010-11-23 CN CN2010206274093U patent/CN201889550U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476224A (en) * | 2010-11-23 | 2012-05-30 | 广西玉柴机器股份有限公司 | Expanding-reaming-extruding cutter |
| CN103521844A (en) * | 2012-07-06 | 2014-01-22 | 北汽福田汽车股份有限公司 | Expanding and reaming composite machining tool and method for machining engine cylinder block tappet rod holes |
| CN103521844B (en) * | 2012-07-06 | 2015-11-18 | 北汽福田汽车股份有限公司 | Expand hinge compound cutting tool and engine cylinder-body tappet bore processing method |
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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: 20110706 Termination date: 20151123 |