CN101829887B - Method for remanufacturing semi-finishing milling cutter by using abandoned finishing milling cutter - Google Patents
Method for remanufacturing semi-finishing milling cutter by using abandoned finishing milling cutter Download PDFInfo
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- CN101829887B CN101829887B CN201010175340XA CN201010175340A CN101829887B CN 101829887 B CN101829887 B CN 101829887B CN 201010175340X A CN201010175340X A CN 201010175340XA CN 201010175340 A CN201010175340 A CN 201010175340A CN 101829887 B CN101829887 B CN 101829887B
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Abstract
The invention discloses a method for remanufacturing a semi-finishing milling cutter by using an abandoned finishing milling cutter, which relates to the technical field of metal cold processing, in particular to the method for remanufacturing the semi-finishing milling cutter by using the abandoned finishing milling cutter. The method aims to solve the problem that the consumption of the semi-finishing milling cutter in a conventional wheel slot milling cutter is large, and comprises the following steps of: firstly, determining the finishing allowance; secondly, remanufacturing the top circle of a wheel slot finishing milling cutter; thirdly, remanufacturing profile molded lines of a threaded part of the wheel slot finishing milling cutter; and finally, remanufacturing end teeth of the wheel slot finishing milling cutter. The method is particularly suitable for remanufacturing a worn abandoned wheel slot finishing milling cutter into a wheel slot semi-finishing milling cutter.
Description
Technical field
The present invention relates to metal cold processing technique field, particularly relate to the method that remanufacturing semi-finishing milling cutter finish-milling cutter is scrapped in a kind of utilization.
Background technology
The wheel slotting cutter is the special molding cutter of processing turbo rotor groove; Distribute in order to guarantee race machining accuracy and surplus; Each rotor groove is machined by roughing milling cutter, half finish-milling cutter (or two) and finish-milling cutter, and half finish-milling cutter is the straight trough grooved, and undertakes bigger chipping allowance processing; Be the maximum race cutter of consumption in three kinds of milling cutters, consumption is big.
Summary of the invention
The objective of the invention is to have the big problem of half finish-milling cutter consumption in the race milling cutter tool now, and then provide a kind of utilization to scrap the method for precise milling cutter for concave groove transformation of the way semi-precise milling cutter for concave groove in order to solve.
Technical scheme of the present invention is: the step of this method of the present invention is following: step 1, confirm allowance; Each precise milling cutter for concave groove to be changed a social system is checked on the amplification appearance; The single face size of the molded lines profile of assurance standard race half finish-milling cutter threaded portion is less than the single face size 0.2mm of the molded lines profile of the threaded portion of waiting to change a social system precise milling cutter for concave groove; To confirm that precise milling cutter for concave groove to be changed a social system has enough surpluses to carry out reconditioning, make the appearance profile size conforms requirement on machining accuracy of the precise milling cutter for concave groove after the transformation of the way;
The transformation of the way of step 2, precise milling cutter for concave groove cylindrical; Utilize the numerically controlled wire cutting machine cutting through the step 1 location cylindrical of waiting to change a social system precise milling cutter for concave groove after the assay was approved; Make the radial dimension single face of location cylindrical reserve the 0.3mm grinding allowance, re-use cylindrical grinder and will wait that the diameter of changing a social system precise milling cutter for concave groove location cylindrical is milled to the size that standard race half finish-milling cutter is located the diameter of cylindrical;
The transformation of the way of step 3, precise milling cutter for concave groove threaded portion profile molded lines utilizes the five-shaft numerical control grinding machine, will be processed as the molded lines profile II of standard race half finish-milling cutter threaded portion through the molded lines profile I of threaded portion that changes a social system precise milling cutter for concave groove that waits of step 2; Precise milling cutter for concave groove to be changed a social system after the processing of molded lines profile is sinusoidal wave sword; The groove depth of ripple sword is 0.2mm～0.3mm, and the chip dividing groove width of ripple sword is 1～2mm, and each tooth is staggered ripple sword grooved; Assurance waits that four cutting edges changing a social system precise milling cutter for concave groove divide bits complementary; The wavelength and the depth of convolution of ripple sword are even, and the relief grinding amount is 3mm, and circumferential teeth anterior angle φ is 0 °;
The transformation of the way of step 4, precise milling cutter for concave groove end tooth; To be processed as dish through the end tooth cross section of changing a social system precise milling cutter for concave groove of waiting of step 3, dish-shaped angle γ is 3 °, and the first relief angle α of end tooth is 6 °; The second relief angle β is 12 °, the precise milling cutter for concave groove after obtaining after the processing changing a social system.
The present invention has following beneficial effect: the precise milling cutter for concave groove transformation of the way that wearing and tearing are scrapped is semi-precise milling cutter for concave groove; Semi-precise milling cutter for concave groove after the transformation of the way is in actual cut processing; Stable cutting, chip removal is smooth and easy, all is equal to cutting ability and cutter life the level of the new semi-precise milling cutter for concave groove cutter of outsourcing; Thereby reduced the outsourcing amount of this cutter, turned waste into wealth and low cost of manufacture.
Description of drawings
Fig. 1 is the structural representation of precise milling cutter for concave groove to be changed a social system among the present invention; Fig. 2 is the structural representation of the precise milling cutter for concave groove after the transformation of the way among the present invention; Fig. 3 is precise milling cutter for concave groove and standard race half a finish-milling cutter threaded portion molded lines profile map to be changed a social system; Fig. 4 is the partial enlarged drawing of the precise milling cutter for concave groove ripple sword after the transformation of the way; Fig. 5 is the profile of the precise milling cutter for concave groove end tooth after the transformation of the way; Fig. 6 is the sketch map of the precise milling cutter for concave groove circumferential teeth anterior angle after the transformation of the way; Fig. 7 is first relief angle of the precise milling cutter for concave groove end tooth after the transformation of the way and the location diagram of second relief angle.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 to Fig. 7 present embodiment is described, present embodiment realizes by following steps:
The transformation of the way of step 2, precise milling cutter for concave groove cylindrical; Utilize the numerically controlled wire cutting machine cutting through the step 1 location cylindrical 1-1 that waits to change a social system precise milling cutter for concave groove 1 after the assay was approved; Make the radial dimension single face of location cylindrical 1-1 reserve the 0.3mm grinding allowance, re-use cylindrical grinder and will wait that the diameter D1 that changes a social system precise milling cutter for concave groove 1 location cylindrical 1-1 is milled to the size that standard race half finish-milling cutter is located the diameter D2 of cylindrical 2-1; The diameter D1 of location cylindrical 1-1 that waits to change a social system precise milling cutter for concave groove 1 is more a lot of greatly than the diameter D2 of the location cylindrical 2-1 of standard race half finish-milling cutter, is in order to guarantee the cutter workmanship, to avoid in big surplus processing, occurring cutter annealing phenomenon.
The transformation of the way of step 3, precise milling cutter for concave groove threaded portion profile molded lines utilizes the five-shaft numerical control grinding machine, will be processed as the profile molded lines II of standard race half finish-milling cutter threaded portion through the profile molded lines I of threaded portion 1-2 that changes a social system precise milling cutter for concave groove 1 that waits of step 2; Treating after the processing of profile molded lines changed a social system precise milling cutter for concave groove 1 and is sinusoidal wave sword; The groove depth h of ripple sword is 0.2mm～0.3mm, and the chip dividing groove width T of ripple sword is 1～2mm, and each tooth is staggered ripple sword grooved; Assurance waits that four cutting edges changing a social system precise milling cutter for concave groove 1 divide bits complementary; The wavelength and the depth of convolution of ripple sword are even, and relief grinding amount K is 3mm, and circumferential teeth anterior angle φ is 0 °; Roughness is not less than Ra0.8, to satisfy each tooth chipping allowance distributed uniform of cutter, reduces cutting force, improves tool life and service life.
The transformation of the way of step 4, precise milling cutter for concave groove end tooth; To be processed as dish through the end tooth cross section of changing a social system precise milling cutter for concave groove 1 of waiting of step 3, dish-shaped angle γ is 3 °, and the first relief angle α of end tooth is 6 °; The second relief angle β is 12 °, the precise milling cutter for concave groove 2 after obtaining after the processing changing a social system; Above-mentioned angle design can guarantee that the end tooth chip removal is smooth and easy, guarantees the cut precision of semi-precise milling cutter for concave groove.
The specific embodiment two: this embodiment also comprises step 5, and said step 5 will be through 2 platings of the precise milling cutter for concave groove after the transformation of the way that step 4 obtains with the TiAlN nano-composite coating.Cutter wearability height and coefficient of friction with this coating are low, the service life that can improve cutter.Other step is identical with the specific embodiment one with parameter.
Claims (2)
1. the method that precise milling cutter for concave groove is changed a social system semi-precise milling cutter for concave groove is scrapped in a utilization, it is characterized in that the step of this method is following:
Step 1, confirm allowance; Each precise milling cutter for concave groove to be changed a social system (1) is checked on the amplification appearance; The single face size of the molded lines profile (II) of assurance standard race half finish-milling cutter threaded portion is less than the single face size 0.2mm of the molded lines profile (I) of the threaded portion of precise milling cutter for concave groove to be changed a social system (1); To confirm that precise milling cutter for concave groove to be changed a social system (1) has enough surpluses to carry out reconditioning, make the appearance profile size conforms requirement on machining accuracy of the precise milling cutter for concave groove after the transformation of the way;
The transformation of the way of step 2, precise milling cutter for concave groove cylindrical; Utilize the location cylindrical (1-1) of numerically controlled wire cutting machine cutting through step 1 precise milling cutter for concave groove to be changed a social system (1) after the assay was approved; Make the radial dimension single face of location cylindrical (1-1) reserve the 0.3mm grinding allowance, re-use cylindrical grinder will precise milling cutter for concave groove changed a social system (1) diameter (D1) of location cylindrical (1-1) be milled to the size of the diameter (D2) of standard race half finish-milling cutter location cylindrical (2-1);
The transformation of the way of step 3, precise milling cutter for concave groove threaded portion profile molded lines utilizes the five-shaft numerical control grinding machine, will be processed as the molded lines profile (II) of standard race half finish-milling cutter threaded portion through the molded lines profile (I) of the threaded portion (1-2) of the precise milling cutter for concave groove to be changed a social system (1) of step 2; Precise milling cutter for concave groove to be changed a social system (1) after the processing of molded lines profile is sinusoidal wave sword; The groove depth of ripple sword (h) is 0.2mm～0.3mm, and the chip dividing groove width (T) of ripple sword is 1～2mm, and each tooth is staggered ripple sword grooved; Four cutting edges of assurance precise milling cutter for concave groove to be changed a social system (1) divide bits complementary; The wavelength and the depth of convolution of ripple sword are even, and the relief grinding amount is 3mm, and circumferential teeth anterior angle (φ) is 0 °;
The transformation of the way of step 4, precise milling cutter for concave groove end tooth; To be processed as dish through the end tooth cross section of the precise milling cutter for concave groove to be changed a social system (1) of step 3, dish-shaped angle (γ) is 3 °, and first relief angle (α) of end tooth is 6 °; Second relief angle (β) is 12 °, the precise milling cutter for concave groove (2) after obtaining after the processing changing a social system.
2. the method for precise milling cutter for concave groove transformation of the way semi-precise milling cutter for concave groove is scrapped in a kind of utilization according to claim 1; It is characterized in that: it also comprises step 5, and said step 5 will be through the precise milling cutter for concave groove after the transformation of the way that step 4 obtains (2) plating with the TiAlN nano-composite coating.
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| CN201010175340XA CN101829887B (en) | 2010-05-18 | 2010-05-18 | Method for remanufacturing semi-finishing milling cutter by using abandoned finishing milling cutter |
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| CN201010175340XA CN101829887B (en) | 2010-05-18 | 2010-05-18 | Method for remanufacturing semi-finishing milling cutter by using abandoned finishing milling cutter |
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| CN101829887A CN101829887A (en) | 2010-09-15 |
| CN101829887B true CN101829887B (en) | 2012-02-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103464997B (en) * | 2013-08-30 | 2016-05-04 | 哈尔滨汽轮机厂有限责任公司 | One is scrapped race tapering milling cutter recycling method |
| CN103506820B (en) * | 2013-09-29 | 2016-04-13 | 哈尔滨汽轮机厂有限责任公司 | One scraps R6 taper ball head slotting cutter reuse method |
| CN103921090B (en) * | 2014-04-28 | 2017-06-30 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of semi-precise milling cutter for concave groove |
| CN105710426B (en) * | 2016-04-08 | 2018-05-22 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of large size semi-precise milling cutter for concave groove |
| CN107552850A (en) * | 2017-09-01 | 2018-01-09 | 恒锋工具股份有限公司 | A kind of leaf slot milling processing technology |
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| GB724118A (en) * | 1951-04-24 | 1955-02-16 | Walztechnik G M B H | Process for the production of milling cutters, especially hobbing cutters |
| US4832540A (en) * | 1988-04-27 | 1989-05-23 | Westinghouse Electric Corp. | Reconditioned milling tool and method of making same |
| DE102006005401A1 (en) * | 2006-02-03 | 2007-08-09 | Gesau-Werkzeuge Fabrikations- Und Service Gmbh | Shaft milling tool, is formed by producing a blank from a hard metal, and applying a hard material layer |
| CN101062539B (en) * | 2006-04-28 | 2010-12-01 | 上海尖点精密工具有限公司 | Method for manufacturing regenerative cutting tools and its structure |
| IL177336A (en) * | 2006-08-07 | 2013-05-30 | Hanita Metal Works Ltd | Chatter-resistant end mill |
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