CN2759652Y - Hard metal long cutting tool bar - Google Patents
Hard metal long cutting tool bar Download PDFInfo
- Publication number
- CN2759652Y CN2759652Y CN 200420055387 CN200420055387U CN2759652Y CN 2759652 Y CN2759652 Y CN 2759652Y CN 200420055387 CN200420055387 CN 200420055387 CN 200420055387 U CN200420055387 U CN 200420055387U CN 2759652 Y CN2759652 Y CN 2759652Y
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- CN
- China
- Prior art keywords
- knife bar
- carbide alloy
- knife
- rimmer
- deep hole
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- 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 hard alloy long cutting tool bar which is composed of a tool bar and a processing cutting tool (4). The utility model is characterized in that the ratio between the length of the tool bar and the diameter of a machinable deep hole is from 12 to 20. The tool bar is divided into a tool bar body (1) which is fixedly connected and a tool bar head (2), and the connecting mode of the two parts can be vacuum brazing or bonding. The utility model is mainly applied to the machining of a deep hole boring of which the slenderness ratio is greater than 10. The use of the utility model improves the traditional deep hole machining technology with the drilling glue combination and satisfy the technical requirements of coaxality of the deep hole machining and the wall thickness difference of hollow shaft deep hole machining, and the utility model fills the manufacturing blank in the field in the country. The utility model reaches the advanced world standard and has quite important economic value.
Description
Technical field:
The utility model relates to Machining Technology, and a kind of carbide alloy rimmer knife bar is provided especially.
Background technology:
In mechanical skilled worker's technology, deep hole machining is big technological difficulties all the time, and this type of technology receives much concern always.In deep hole machining, require to reach very high hole machining accuracy sometimes; For hollow Machining of Shaft-type Parts, main processing difficulties problem is exactly the control to hollow shaft wall thickness difference value.
In the deep hole machining process of old tradition, deep hole (especially slenderness ratio surpass 10 or the degree of depth surpass the deep hole of 800mm) the wall thickness difference can only be controlled at about 0.10, internal control part wall thickness difference also only can reach 0.08 in the operation.Simultaneously, the coaxiality error in hole also is difficult to guarantee degree of precision.If requiring the wall thickness difference is still to continue to use traditional processing method under 0.05 the situation, the wall thickness difference qualification rate of processing back part is extremely low, and in whole deep hole profile, the inner surface axiality of the inner surface of aperture and macropore mistake error is bigger, causes the wall thickness difference overproof.After the past people often adopt and look for hole bigger than normal theoretical centerline to make it and aperture is consistent, process big internal surface of hole and guarantee and the requirement of aperture inner surface axiality; Then, repair internal hole reference and each surface of cylindrical, to guarantee the requirement of hollow shaft wall thickness difference.This method, it is very complicated to repair the processing process of getting up, and randomness is bigger, and some local sizes and technical conditions are not easy control very much.
Under to coaxiality error or the exigent situation of wall thickness difference, deep hole machining has become a technical barrier that urgency is to be solved.If we carry out deep hole boring processing, owing to be subjected to the restriction of hollow shaft structure, effect is still undesirable.Adopt original structural steel knife bar then not satisfy the structural requirement of hollow shaft and the requirement of processing rigidity.
The market expectation is a kind of can carry out the more process tool of high accuracy control to axiality, wall thickness difference.
Summary of the invention:
The utility model purpose provides a kind of hard alloy cutter.
A kind of carbide alloy rimmer knife of the utility model bar is fixedlyed connected with process tool 4 by monoblock type carbide alloy rimmer knife bar 7 and to be constituted, and it is characterized in that: but the diameter ratio of described knife bar length and its deep hole processing is 10～20.
A kind of carbide alloy rimmer knife of the utility model bar is fixedlyed connected with process tool 4 by knife bar and to be constituted, and it is characterized in that: knife bar is divided into knife bar body 1 and knife bar head 2 two parts, is fixedly connected between the two; But the diameter ratio of described knife bar length and its deep hole processing is 10～20.
The utility model carbide alloy rimmer knife bar is characterized in that: form the knife bar body 1 of knife bar and the fixedly connected mode between knife bar head 2 two parts and can be vacuum brazing.Described vacuum brazing is that scolder is placed in the carbide alloy knife bar body 1 and the welding region between the knife bar head 2 that is welded, and injects silver-colored brazing flux, together puts in the vacuum drying oven, is heated to 595～605 ℃ solder fusing is cooled off with stove, finishes welding.
The utility model carbide alloy rimmer knife bar is characterized in that: knife bar body 1 and the fixedly connected mode between knife bar head 2 two parts of forming knife bar can be for bonding.Described bonding process is: earlier to the gluing of surfaces polishing, clean, oven dry handles, and selects a kind of phenolic aldehyde rubber adhesive for use, under uniform temperature and pressure with adhesive cures, thereby knife bar body 1 and knife bar head 2 are bonded together.
The utility model carbide alloy rimmer knife bar is characterized in that: the cross section of knife bar body 1 and knife bar head 2 is eccentric shape, and meaning is that its cross section is not circular.
The utility model carbide alloy rimmer knife bar is characterized in that: knife bar head in described process tool 4 and the knife bar 2 between the two for fixedlying connected, connected mode can for welding, bonding, be threaded etc.
The utility model carbide alloy rimmer knife bar is characterized in that: described process tool 4 is connected with being fixedly connected as with screw 3 of knife bar head 2.
The utility model is used overlength carbide alloy knife bar, is mainly used in slenderness ratio greater than in 10 the deep hole boring processing (the especially deep hole boring of hollow shaft processing), has further improved traditional deep hole (drilling and reaming) processing technology, has obtained good effect.Satisfy the specification requirement of hollow shaft deep hole machining wall thickness difference, and be applied in the hollow shaft process of manufacture, reached the set goal.At home in the same industry, this is that first Application surpasses 1 meter long dedicated integral carbide alloy rimmer knife bar and carries out deep hole boring processing, has obtained the leading advantage of process technology.This carbide alloy rimmer knife bar is made and is used, and all belongs to the domestic initiation product, also is the part of the longest Hardmetal materials of our domestic development voluntarily up to now, has filled up the manufacturing gap of China in this field, has reached international most advanced level.
Description of drawings:
The bonding carbide alloy rimmer knife of Fig. 1 bar overall structure schematic diagram;
The bonding carbide alloy rimmer knife of Fig. 2 bar knife bar body construction schematic diagram;
The bonding carbide alloy rimmer knife of Fig. 3 bar knife bar header structure schematic diagram;
Fig. 4 vacuum brazing carbide alloy rimmer knife bar overall structure schematic diagram;
Fig. 5 carbide alloy rimmer knife bar vacuum brazing principle schematic;
Fig. 6 monoblock type carbide alloy rimmer knife bar.
The specific embodiment:
Picture specification: knife bar body 1, knife bar head 2, screw 3, process tool 4, solder 5, protective sleeve 6, monoblock type knife bar 7;
A kind of carbide alloy rimmer knife bar is made of knife bar and process tool 4, and knife bar is divided into fixedly connected knife bar body 1 and knife bar head 2 two parts again, and the knife bar total length is 1080mm, but the diameter draw ratio of knife bar length and deep hole processing is 15 to the maximum.Forming the knife bar body 1 of knife bar and the fixedly connected mode between knife bar head 2 two parts is vacuum brazing.Described vacuum brazing is that scolder 5 is placed in the carbide alloy knife bar body 1 and the welding region between the knife bar head 2 that is welded, and injects silver-colored brazing flux, together puts in the vacuum drying oven, is heated to 595～605 ℃ solder fusing is cooled off with stove, finishes welding (referring to Fig. 5).Be to guarantee normally carrying out of welding, during welding, protective sleeve 6 is arranged at the knife bar body 1 and guide bar head 2 outer walls of welding region.
Postwelding performance: hot strength 30～40Kg/cm
2Under the normal condition, hot strength is 20Kg/cm
2Can satisfy the requirement of general processing conditions.
Characteristics: not melting parent metal, is that its chemical composition, tissue and mechanical performance remain unchanged, and keeps the fastness of faying face; Select for use the load-carrying ability that withstands shocks strong, have better wetability and fill up the solder of gap ability.
Satisfying under the prerequisite of processing request, in order to save material, make things convenient for processing and implementation, the cross section of knife bar body 1 and knife bar head 2 is eccentric shape.
Described process tool 4 is fixedlyed connected with knife bar head 2 usefulness screws 3.
A kind of carbide alloy rimmer knife bar is made of knife bar and process tool 4.Knife bar is divided into fixedly connected knife bar body 1 and knife bar head 2 two parts again, and the knife bar total length is 1100mm, but the draw ratio of knife bar deep hole processing is 20 to the maximum.It is bonding forming the knife bar body 1 of knife bar and the fixedly connected mode between knife bar head 2 two parts.
Described bonding process is: earlier to the gluing of surfaces polishing, then it is done to clean and dries and handle; Select a kind of thermosetting phenolic rubber adhesive for use, under the suitable temperature with adhesive bond face gluing after, placed about 15 minutes, put into the preheating of baking box constant temperature then about 50 minutes, immediately both are bonded together after the taking-up, apply 3Kg/cm simultaneously
2Pressure at room temperature keep about 10 minutes can be with adhesive cures, thereby knife bar body 1 and knife bar head 2 are bonded together.
Adhesive property: under room temperature 20 degrees celsius, the non-homogeneous pull-off strength after knife bar head 2 and knife bar body 1 are bonding is 50Kg/cm
2Under the normal condition, non-homogeneous pull-off strength is 15Kg/cm
2Can satisfy the requirement of general processing conditions.
Satisfying under the prerequisite of processing request, in order to save material, make things convenient for processing and implementation, the cross section of knife bar body 1 and knife bar head 2 is eccentric shape.
Described process tool 4 is fixedlyed connected with knife bar head 2 usefulness screws 3.
A kind of carbide alloy rimmer knife bar is made of monoblock type knife bar 7 and process tool 4.Monoblock type knife bar 7 total lengths are 1100mm, but the draw ratio of knife bar deep hole processing is 10 to the maximum.
Satisfying under the prerequisite of processing request, in order to save material, make things convenient for processing and implementation, the cross section of monoblock type knife bar 7 is eccentric shape.
Fixedly connected with screw 3 between described process tool 4 and the knife bar.
Claims (8)
1, a kind of carbide alloy rimmer knife bar is fixedlyed connected formation by monoblock type carbide alloy rimmer knife bar (7) with process tool (4), it is characterized in that: but the diameter ratio of described knife bar length and its deep hole processing is 10～20.
2, a kind of carbide alloy rimmer knife bar is fixedlyed connected formation by knife bar with process tool (4), it is characterized in that: knife bar is divided into knife bar body (1) and knife bar head (2) two parts, is fixedly connected between the two; But the diameter ratio of described knife bar length and its deep hole processing is 10～20.
3, according to the described carbide alloy rimmer knife of claim 2 bar, it is characterized in that: forming the knife bar body (1) of knife bar and the fixedly connected mode between knife bar head (2) two parts is vacuum brazing.
4, according to the described carbide alloy rimmer knife of claim 3 bar, it is characterized in that: described vacuum brazing is that scolder is placed in the carbide alloy knife bar body (1) and the welding region between the knife bar head (2) that is welded, inject silver-colored brazing flux, together put in the vacuum drying oven, be heated to 595～605 ℃ solder fusing is cooled off with stove, finish welding.
5, according to the described carbide alloy rimmer knife of claim 2 bar, it is characterized in that: it is bonding forming the knife bar body (1) of knife bar and the fixedly connected mode between knife bar head (2) two parts.
6, according to the described carbide alloy rimmer knife of claim 5 bar, it is characterized in that: described bonding process is: earlier to gluing of surfaces polishing, clean, oven dry processing, select a kind of phenolic aldehyde rubber adhesive for use, under uniform temperature and pressure with adhesive cures, thereby knife bar body (1) and knife bar head (2) are bonded together.
7, according to claim 3 or 5 described carbide alloy rimmer knife bars, it is characterized in that: the cross section of knife bar body (1) and knife bar head (2) is eccentric shape.
8, according to claim 3 or 5 described carbide alloy rimmer knife bars, it is characterized in that: described process tool (4) is connected with screw (3) with knife bar head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055387 CN2759652Y (en) | 2004-12-02 | 2004-12-02 | Hard metal long cutting tool bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055387 CN2759652Y (en) | 2004-12-02 | 2004-12-02 | Hard metal long cutting tool bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2759652Y true CN2759652Y (en) | 2006-02-22 |
Family
ID=36081855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055387 Expired - Fee Related CN2759652Y (en) | 2004-12-02 | 2004-12-02 | Hard metal long cutting tool bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2759652Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950336A (en) * | 2011-08-27 | 2013-03-06 | 沈阳黎明航空发动机(集团)有限责任公司 | Special cutter and method for processing closed elongated inner cavity profile |
| CN103433703A (en) * | 2013-08-16 | 2013-12-11 | 江苏森威精锻有限公司 | Machining process of long hollow shaft |
| CN109332930A (en) * | 2018-10-30 | 2019-02-15 | 石家庄惠德机械工具厂 | The manufacturing method of right knife bar |
-
2004
- 2004-12-02 CN CN 200420055387 patent/CN2759652Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950336A (en) * | 2011-08-27 | 2013-03-06 | 沈阳黎明航空发动机(集团)有限责任公司 | Special cutter and method for processing closed elongated inner cavity profile |
| CN102950336B (en) * | 2011-08-27 | 2015-05-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Special cutter and method for processing closed elongated inner cavity profile |
| CN103433703A (en) * | 2013-08-16 | 2013-12-11 | 江苏森威精锻有限公司 | Machining process of long hollow shaft |
| CN109332930A (en) * | 2018-10-30 | 2019-02-15 | 石家庄惠德机械工具厂 | The manufacturing method of right knife bar |
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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: 20060222 Termination date: 20121202 |