CN201316830Y - Rough milling cutter for concave groove - Google Patents
Rough milling cutter for concave groove Download PDFInfo
- Publication number
- CN201316830Y CN201316830Y CNU2008202115527U CN200820211552U CN201316830Y CN 201316830 Y CN201316830 Y CN 201316830Y CN U2008202115527 U CNU2008202115527 U CN U2008202115527U CN 200820211552 U CN200820211552 U CN 200820211552U CN 201316830 Y CN201316830 Y CN 201316830Y
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- cutter
- tool bit
- cutter head
- milling cutter
- tool
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Abstract
The utility model relates to a milling cutter, in particular to a rough milling cutter for a concave groove. The utility model is designed to solve the problems that the geometrical angle design of the existing rough milling cutter for the concave groove is unreasonable, the chip flute of the cutter is small, and the scrap drainage is unsmooth, the vibration is large and the cutter is easy to be broken during the cutting process. A tool shank, a shoulder, a tool bit transition section and a tool bit are processed into a whole body sequentially; the external surface of the tool shank has a taper of 4:100 from the tail of the tool shank to the end surface where the shoulder is connected with the tool shank; the tool bit transition section is gradually decreased along the cross-section of the tool bit; the taper of the tool bit transition section is 100:60; the cutting rake angle of the tool bit is ranging from 8 degrees to 11 degrees; the external surface of the tool bit is provided with a helix edge; the helix angle between the helix edge and the axis line is 20 to 30 degrees; a waveform edge is arranged in the length direction of the helix edge; and the tool bit is provided with a chip flute. On the one hand, the utility model reduces the cutting resistance of the cutter and increases the wear resistance of the cutter; on the other hand, the utility model has smooth scrap drainage, is beneficial for the heat dissipation of the cutter during the cutting process, has small vibration, is not easy to break the cutter and prolongs the service life of the cutter.
Description
Technical field
The utility model relates to a kind of milling cutter.
Background technology
Race roughing milling cutter is used for processing turbo rotor groove, and the processing of helical pitches such as existing race roughing milling cutter employing when numerically control grinder grinding and reconditioning, needs to have reduced the cutter working (machining) efficiency by the part centering; The design of the geometric angle of race roughing milling cutter is unreasonable, and the cutter chip pocket is less, smooth, the vibration of iron filings chip removal is greatly, forge a knife easily during cutting.The race roughing milling cutter material generally adopts high speed steel W2Mo9Cr4Vco8 (M42), and M42 is without Passivation Treatment, and the zigzag burr (defective) that produces during tool grinding bursts apart when cutting easily, causes product quality to descend; Wheel slotting cutter finished product is not handled through magnetic fluorescent penetrating inspection, is difficult to guarantee the service property (quality) of cutter.
The utility model content
The purpose of this utility model is unreasonable for solving existing race roughing milling cutter geometric angle design, the cutter chip pocket is less, during cutting smooth, the vibration of iron filings chip removal greatly, the problem of forging a knife easily, a kind of race roughing milling cutter is provided.
The utility model comprises handle of a knife, shoulder, cutter head changeover portion and cutter head, handle of a knife, shoulder, cutter head changeover portion and cutter head are made one successively, the end face that the outer surface of handle of a knife is connected with handle of a knife from the handle of a knife afterbody to shoulder has 4: 100 tapering, the cutter head changeover portion reduces gradually along the direction cross section of cutter head, the tapering of cutter head changeover portion is 100: 60, the cutting anterior angle of cutter head is 8 °～11 °, the cutter head outer surface is provided with helical edges, helical angle between helical edges and the axis is 20 °～30 °, the length direction of helical edges is provided with the waveform sword, and cutter head is provided with chip pocket.
The utility model has the advantages that: one, the utility model has designed unique waveform sword, has reduced the Tool in Cutting resistance on the one hand, increases the cutter wearability; Chip removal is smooth and easy on the other hand, the service life that dispel the heat when helping Tool in Cutting, vibration is little, is difficult for having forged a knife, having improved cutter.Two, avoided tipping and forged a knife through the cutter of Passivation Treatment and fluorescent magnetic particle flaw detection, thus improved cutter service life, improved crudy.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model race roughing milling cutter, Fig. 2 be the A of Fig. 1 to view, Fig. 3 is the I partial enlarged drawing of Fig. 1.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, present embodiment comprises handle of a knife 1, shoulder 2, cutter head changeover portion 3 and cutter head 4, handle of a knife 1, shoulder 2, cutter head changeover portion 3 and cutter head 4 are made one successively, the end face that the outer surface of handle of a knife 1 is connected with handle of a knife 1 from handle of a knife 1 afterbody to shoulder 2 has 4: 100 tapering, cutter head changeover portion 3 reduces gradually along the direction cross section of cutter head 4, the tapering of cutter head changeover portion 3 is 100: 60, the cutting anterior angle α of cutter head 4 is 8 °～11 °, cutter head 4 outer surfaces are provided with helical edges 4-1, helixangle between helical edges 4-1 and the axis is 20 °～30 °, the length direction of helical edges 4-1 is provided with waveform sword 4-1-1, cutter head 4 is provided with chip pocket 4-2, and chip pocket 4-2 makes chip removal more smooth and easy.Design can guarantee that roughing milling cutter is that half finish-milling operation is reserved more reasonably chipping allowance when the processing race like this.The race roughing milling cutter finished product is through the Passivation Treatment before and after the coating, removed the droplet that produces after the projection of point of a knife part and the coating, and the race fineness of processing reaches 0.8.
The specific embodiment two: in conjunction with Fig. 3 present embodiment is described, the pitch t of the waveform sword 4-1-1 of present embodiment is 0.8～1.5mm, and the crest on the waveform sword 4-1-1 to the distance h between the trough is 0.15～0.25mm.Pitch t, crest to the numerical value of trough just can reduce cutting resistance, make chip removal smooth and easy in above-mentioned scope.
The specific embodiment three: in conjunction with Fig. 3 present embodiment is described, the pitch t of the waveform sword 4-1-1 of present embodiment is 1mm, and the crest on the waveform sword 4-1-1 to the distance h between the trough is 0.2mm.Pitch t, crest make cutting resistance minimum, chip removal more smooth and easy when trough is above-mentioned numerical value.
The specific embodiment four: in conjunction with Fig. 1 present embodiment is described, the length L of the chip pocket 4-2 of present embodiment is 30～35mm.Chip pocket 4-2 makes chip removal smooth and easy in above-mentioned scope.
The specific embodiment five: in conjunction with Fig. 1 present embodiment is described, the length L of the chip pocket 4-2 of present embodiment is 33mm.The chip removal effect was ideal when chip pocket 4-2 was above-mentioned numerical value.
The specific embodiment six: in conjunction with Fig. 1 present embodiment is described, the material of the handle of a knife 1 of present embodiment, shoulder 2, cutter head changeover portion 3 and cutter head 4 is PM HSS (ASP2030).There is not carbide segregation in this material, and the material combination property is fine, has improved the cutter serviceability greatly.
The above-mentioned wheel slotting cutter of finishing is carried out Passivation Treatment, trickle circular cutting edge will occur through the helical edges 4-1 of Passivation Treatment, it is smooth that land also will become, and eliminated defectives such as open-minded tooth, sawtooth and crackle.The wheel slotting cutter of finishing Passivation Treatment is carried out fluorescent magnetic particle flaw detection to be handled, can be by fluorescent magnetic particle flaw detection with the defective of tool surface existence, detect as crackle, slag inclusion, carbide segregation, bubble etc., add at race and cause man-hour in order to avoid will have the cutter of above-mentioned defective, guaranteed the quality of wheel slotting cutter at tipping.
Claims (5)
1, a kind of race roughing milling cutter, it is characterized in that: it comprises handle of a knife (1), shoulder (2), cutter head changeover portion (3) and cutter head (4), handle of a knife (1), shoulder (2), cutter head changeover portion (3) and cutter head (4) are made one successively, the end face that the outer surface of handle of a knife (1) is connected with handle of a knife (1) from handle of a knife (1) afterbody to shoulder (2) has 4: 100 tapering, cutter head changeover portion (3) reduces gradually along the direction cross section of cutter head (4), the tapering of cutter head changeover portion (3) is 100: 60, the cutting anterior angle (α) of cutter head (4) is 8 °～11 °, the cutter head outer surface is provided with helical edges, helical angle between helical edges and the axis is 20 °～30 °, the length direction of helical edges (4-1) is provided with waveform sword (4-1-1), and cutter head (4) is provided with chip pocket (4-2).
2, race roughing milling cutter according to claim 1 is characterized in that: the pitch (t) of waveform sword (4-1-1) is 0.8～1.5mm, and the crest on the waveform sword (4-1-1) to the distance between the trough (h) is 0.15～0.25mm.
3, race roughing milling cutter according to claim 2 is characterized in that: the pitch (t) of waveform sword (4-1-1) is 1mm, and the crest on the waveform sword (4-1-1) to the distance between the trough (h) is 0.2mm.
4, race roughing milling cutter according to claim 4 is characterized in that: the length (L) of chip pocket (4-2) is 30～35mm.
5, race roughing milling cutter according to claim 5 is characterized in that: the length (L) of chip pocket (4-2) is 33mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202115527U CN201316830Y (en) | 2008-11-27 | 2008-11-27 | Rough milling cutter for concave groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202115527U CN201316830Y (en) | 2008-11-27 | 2008-11-27 | Rough milling cutter for concave groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201316830Y true CN201316830Y (en) | 2009-09-30 |
Family
ID=41195602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202115527U Expired - Lifetime CN201316830Y (en) | 2008-11-27 | 2008-11-27 | Rough milling cutter for concave groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201316830Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745680B (en) * | 2009-12-25 | 2011-12-07 | 东方电气集团东方汽轮机有限公司 | Cemented carbide profile milling cutter with large helix angle |
| CN104785798A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Main shaft structure of numerically-controlled machine tool |
| CN104785829A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Cutter bar device of numerically-controlled machine tool and operation method thereof |
| CN104785864A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Machining mechanism of numerical control machine tool |
| CN104785806A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Tool bar structure of numerical control machine tool |
| CN108188656A (en) * | 2017-11-27 | 2018-06-22 | 江阴市永兴机械制造有限公司 | A kind of modified technique of lathe in machining deep trench part |
-
2008
- 2008-11-27 CN CNU2008202115527U patent/CN201316830Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745680B (en) * | 2009-12-25 | 2011-12-07 | 东方电气集团东方汽轮机有限公司 | Cemented carbide profile milling cutter with large helix angle |
| CN104785798A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Main shaft structure of numerically-controlled machine tool |
| CN104785829A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Cutter bar device of numerically-controlled machine tool and operation method thereof |
| CN104785864A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Machining mechanism of numerical control machine tool |
| CN104785806A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Tool bar structure of numerical control machine tool |
| CN108188656A (en) * | 2017-11-27 | 2018-06-22 | 江阴市永兴机械制造有限公司 | A kind of modified technique of lathe in machining deep trench part |
| CN108188656B (en) * | 2017-11-27 | 2019-10-15 | 江阴市永兴机械制造有限公司 | A kind of improvement technique of lathe in machining deep trench part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090930 |