CN104785829A - Cutter bar device of numerically-controlled machine tool and operation method thereof - Google Patents
Cutter bar device of numerically-controlled machine tool and operation method thereof Download PDFInfo
- Publication number
- CN104785829A CN104785829A CN201510184748.6A CN201510184748A CN104785829A CN 104785829 A CN104785829 A CN 104785829A CN 201510184748 A CN201510184748 A CN 201510184748A CN 104785829 A CN104785829 A CN 104785829A
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- cutter head
- cutter
- diameter
- knife bar
- machine tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention provides a cutter bar device of a numerically-controlled machine tool and an operation method thereof. The cutter bar device of the numerically-controlled machine tool comprises a cutter bar connected with a main shaft and a cutter bit connected with the cutter bar. The head of the cutter bar is inserted into the main shaft. The tail of the cutter bar is in an inverted-tapered shape, the tail is connected with the cutter bit, and the specific value of the diameter of the end of the tail and the diameter of the cutter bit is smaller than or equal to 1.7:1. The specific value of the diameter of the end of the main shaft and the diameter of the head of the cutter bar is smaller than or equal to 1.5:1. The taper of the head of the cutter bar is smaller than or equal to 2 degrees. The taper of the tail of the cutter bar is smaller than or equal to 10 degrees and larger than and equal to 3 degrees. The specific value of the length of the tail of the cutter bar and the length of the portion, exposed out of the cutter bar, of the cutter bit is smaller than or equal to 2.5:1. The surface of the cutter bit is covered with an ultramicron layer. The cutter bar device has the advantages of being simple and reasonable in structure, flexible to operate, high in working efficiency and long in service life.
Description
Technical field
The present invention relates to a kind of Digit Control Machine Tool, particularly a kind of cutter arbor device of Digit Control Machine Tool and method of operating thereof.
Background technology
Chinese patent literature CN 102059408 A disclosed a kind of main shaft device of chain digital control gear hobbing machine for 05 month on the 18th in 2011, this main shaft device comprises knife bar assembly, knife bar assembly clamping body and cutter-exchange mechanism, knife bar assembly is by knife bar, hobboing cutter, toolsetting pad, and axle sleeve, locking nut and knife bar blind rivet are formed.Knife bar assembly clamping body is made up of square key and claw assembly, and cutter-exchange mechanism is made up of pull bar, piston rod, disk spring, cylinder body, ring flange, support, swivel joint and limit switch.During this chain digital control gear hobbing machine work, processing is difficult to for trickle place, makes user's not too satisfaction.
During existing processing circular hole, as shown in Figure 1, need first to use centre drill 10 drill centers, then bore circular hole with drill bit 20, finally to rest and reorganize hole inwall with reamer 30, to improve machining accuracy.This process steps is many, wastes time and energy.
When processing groove, as shown in Figure 2, cutter head was along the dotted line straight ahead in figure, and the cutting load moment of cutter head is in this case in variation, and in the bottom of groove, cutter head is easily impaired in the past.
Summary of the invention
Object of the present invention aim to provide a kind of simple and reasonable, flexible operation, operating efficiency are high, the cutter arbor device of the Digit Control Machine Tool of long service life, to overcome weak point of the prior art.
The cutter arbor device of a kind of Digit Control Machine Tool designed by this object, comprise the knife bar connected with main shaft, the cutter head connected with knife bar, its architectural feature is that the head of knife bar is inserted in main shaft, the afterbody of knife bar is back taper, this afterbody connects with cutter head, and the ratio of the end diameter of afterbody and the diameter of cutter head is less than or equal to 1.7:1.
Further, the ratio of the diameter of the diameter of described spindle nose and the head of knife bar is less than or equal to 1.5:1.
Further, the tapering of the head of described knife bar is less than or equal to 2 degree.
Further, the tapering of the afterbody of described knife bar is less than or equal to 10 degree and is more than or equal to 3 degree.
Further, the ratio that the length of the afterbody of described knife bar and cutter head expose the length at the position of knife bar is less than or equal to 2.5:1; Or the length that cutter head exposes the position of knife bar is less than or equal to four times of tool bit diameter.
Further, described bit interface is coated with ultra micro granulosa.
Further, described ultra micro granulosa is ultra micron TiAlN ALTIN layer, ultra micron silicon aluminum nitrides titanium AlTiSiN layer or ultra micron titanium nitride TIN layer.
A method of operating for the cutter arbor device of Digit Control Machine Tool, is characterized in that when process component, and the shape that the tool track of cutter head is shaping to part to be processed is similar; Cutter head moves along the contour of the machined surface of part to be processed;
When machining hole, the aperture of the diameter than hole that cutter head is selected is little, and cutter head presses the progressive mode of helix, machining hole from top to bottom along the shape in hole;
When processing groove, the diameter that cutter head is selected is less than the width of groove, and cutter head presses the progressive mode of helix along the shape of groove, processing groove from top to bottom.
The ratio in the aperture of the diameter that described cutter head is selected and processed parts is 0.55 ~ 0.8.
The ratio of the minimum diameter of the groove of the diameter that described cutter head is selected and processed parts is 0.55 ~ 0.8.
The head of knife bar is inserted in main shaft by the present invention, and the afterbody of knife bar is back taper, and this afterbody connects with cutter head, and the ratio of the end diameter of afterbody and the diameter of cutter head is less than or equal to 1.7:1; Make cutter head can enter into the machining area of relative narrower, and the processing intensity of cutter head can be kept.
The present invention is coated with ultra micro granulosa at bit interface, improves case hardness and the peel resistance of cutter head, thus improves the processing characteristics of cutter head, roughing can be directly carried out to fine finishining to heat treatment die, reduce number of changing knife, improve the working (machining) efficiency of Digit Control Machine Tool, reduce cost of manufacture.
The ratio of the diameter of the diameter of the spindle nose in the present invention and the head of knife bar is less than or equal to 1.5:1; The tapering of the head of knife bar is less than or equal to 2 degree; Adding man-hour, effectively can prevent the head of knife bar from producing relative to spindle nose and swing, thus guarantee crudy.
The ratio that the length at the back taper position of the knife bar in the present invention and cutter head expose the length at the position of knife bar is less than or equal to 2.5:1; Or the length that cutter head exposes the position of knife bar is less than or equal to four times of tool bit diameter; The rigidity of cutter head can be improved, prevent cutter head work in-process from affecting crudy because of distortion.
After adopting technical scheme provided by the invention, adding man-hour, cutter head diametrically or axis direction all adopt shallow enter feed, so, cutter head is not easy to burst apart, chip removal is also comparatively easy, immediately also can obtain higher processing quality in the face of the ultra-thin workpiece without rigidity, and can extend the service life of cutter head greatly.
The present invention have simple and reasonable, flexible operation, operating efficiency are high and the feature of long service life.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing processing circular hole.
Fig. 2 is the feed schematic diagram of existing processing groove.
Fig. 3 is the biopsy cavity marker devices schematic diagram of one embodiment of the invention.
Fig. 4 is the schematic diagram of the feed of the present invention when processing circular hole.
Fig. 5 is the schematic diagram of the feed of the present invention when processing groove.
Fig. 6 is the tool track schematic top plan view of the present invention when processing groove.
Fig. 7 is the tool track schematic diagram of the present invention when processing groove.
In figure: 1 is main shaft, 2 is knife bar, and 2.1 is afterbody, and 3 is cutter head, and bore centered by 10,20 is drill bit, and 30 is reamer.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 3, the cutter arbor device of this Digit Control Machine Tool, comprise the knife bar 2 connected with main shaft 1, the cutter head 3 connected with knife bar 2, the head of knife bar 2 is inserted in main shaft 1, the afterbody 2.1 of knife bar 2 is in back taper, and this afterbody 2.1 connects with cutter head 3, and the ratio of the end diameter D5 of afterbody 2.1 and the diameter D6 of cutter head 3 is less than or equal to 1.7:1.
In the present embodiment, the ratio of the diameter D2 of the diameter D1 of main shaft 1 end and the head of knife bar 2 is less than or equal to 1.5:1.
The tapering α of the head of knife bar 2 is less than or equal to 2 degree.
The tapering β of the afterbody 2.1 of knife bar 2 is less than or equal to 10 degree and is more than or equal to 3 degree.
The ratio that the length L1 of the afterbody 2.1 of knife bar 2 and cutter head 3 expose the length L2 at the position of knife bar 2 is less than or equal to 2.5:1.; Or the length L2 that cutter head 3 exposes the position of knife bar 2 is less than or equal to four times of cutter head 3 diameter
Cutter head 3 surface coverage has ultra micro granulosa.In the present embodiment, ultra micro granulosa can be ultra micron TiAlN ALTIN layer, ultra micron silicon aluminum nitrides titanium AlTiSiN layer or ultra micron titanium nitride TIN layer.
The present invention is on the basis of guaranteeing knife bar intensity, by controlling the shape of knife bar 2 and having ultra micro granulosa in cutter head 3 surface coverage, can directly carry out roughing to fine finishining to heat treatment die, reduce number of changing knife, improve the working (machining) efficiency of Digit Control Machine Tool, conscientiously reduce cost of manufacture.
In the present embodiment, see Fig. 4-Fig. 5, the method for operating of the cutter arbor device of Digit Control Machine Tool is when process component, and the shape that the tool track of cutter head 3 is shaping to part to be processed is similar; Cutter head 3 moves along the contour of the machined surface of part to be processed.Be specially: when machining hole, the aperture of the diameter than hole that cutter head 3 is selected is little, and cutter head 3 presses the progressive mode of helix, machining hole from top to bottom along the shape in hole; When processing groove, the diameter that cutter head 3 is selected is less than the width of groove, and cutter head 3 presses the progressive mode of helix along the shape of groove, processing groove from top to bottom.
The ratio in the aperture of the diameter that described cutter head 3 is selected and processed parts is 0.55 ~ 0.8.
The ratio of the minimum diameter of the groove of the diameter that described cutter head 3 is selected and processed parts is 0.55 ~ 0.8.
See Fig. 6-Fig. 7, from tool track schematic diagram when tool track schematic top plan view during this processing groove and processing groove, we can find out the meaning expressed by the present invention very intuitively, and can very fast being applied in concrete practice.
Adopt method of operating provided by the invention, can by former four procedure of processings, comprise roughing, heat treatment, electric discharge processing and polishing, be reduced to a step, that is, can settle at one go, by the steel after Overheating Treatment on Digit Control Machine Tool once property be worked into the precision after polishing.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. the cutter arbor device of a Digit Control Machine Tool, comprise the knife bar (2) connected with main shaft (1), the cutter head (3) connected with knife bar (2), it is characterized in that the head of knife bar (2) is inserted in main shaft (1), the afterbody (2.1) of knife bar (2) is in back taper, this afterbody (2.1) connects with cutter head (3), and the end diameter (D5) of afterbody (2.1) is less than or equal to 1.7:1 with the ratio of the diameter (D6) of cutter head (3).
2. the cutter arbor device of Digit Control Machine Tool according to claim 1, is characterized in that the diameter (D1) of described main shaft (1) end is less than or equal to 1.5:1 with the ratio of the diameter (D2) of the head of knife bar (2).
3. the cutter arbor device of Digit Control Machine Tool according to claim 1, is characterized in that the tapering (α) of the head of described knife bar (2) is less than or equal to 2 degree.
4. the cutter arbor device of Digit Control Machine Tool according to claim 1, is characterized in that the tapering (β) of the afterbody (2.1) of described knife bar (2) is less than or equal to 10 degree and is more than or equal to 3 degree.
5. the cutter arbor device of Digit Control Machine Tool according to claim 1, the ratio that the length (L1) that it is characterized in that the afterbody (2.1) of described knife bar (2) and cutter head (3) expose the length (L2) at the position of knife bar (2) is less than or equal to 2.5:1; Or the length (L2) that cutter head (3) exposes the position of knife bar (2) is less than or equal to four times of cutter head (3) diameter.
6., according to the cutter arbor device of the arbitrary described Digit Control Machine Tool of claim 1 to 5, it is characterized in that described cutter head (3) surface coverage has ultra micro granulosa.
7. the cutter arbor device of Digit Control Machine Tool according to claim 6, is characterized in that described ultra micro granulosa is ultra micron aluminium nitride titanium layer, ultra micron silicon aluminum nitrides titanium layer or ultra micron titanium nitride layer.
8. a method of operating for the cutter arbor device of Digit Control Machine Tool as claimed in claim 1, is characterized in that when process component, and the shape that the tool track of cutter head (3) is shaping to part to be processed is similar; Cutter head (3) moves along the contour of the machined surface of part to be processed;
When machining hole, the aperture of the diameter than hole that cutter head (3) is selected is little, and cutter head (3) presses the progressive mode of helix, machining hole from top to bottom along the shape in hole;
When processing groove, the diameter that cutter head (3) is selected is less than the width of groove, and cutter head (3) presses the progressive mode of helix along the shape of groove, processing groove from top to bottom.
9. the method for operating of the cutter arbor device of Digit Control Machine Tool according to claim 8, is characterized in that the ratio in the aperture of the diameter that described cutter head (3) is selected and processed parts is 0.55 ~ 0.8.
10. the method for operating of the cutter arbor device of Digit Control Machine Tool according to claim 8, is characterized in that the ratio of the minimum diameter of the groove of the diameter that described cutter head (3) is selected and processed parts is 0.55 ~ 0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184748.6A CN104785829A (en) | 2015-04-20 | 2015-04-20 | Cutter bar device of numerically-controlled machine tool and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184748.6A CN104785829A (en) | 2015-04-20 | 2015-04-20 | Cutter bar device of numerically-controlled machine tool and operation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104785829A true CN104785829A (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510184748.6A Pending CN104785829A (en) | 2015-04-20 | 2015-04-20 | Cutter bar device of numerically-controlled machine tool and operation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200038A (en) * | 2007-12-13 | 2008-06-18 | 北京理工大学 | Microminiature high speed tool shank |
| US20080232911A1 (en) * | 2007-03-23 | 2008-09-25 | Hyatt Gregory A | Method and assembly for rotating a cutting insert during a turning operation and inserts used therein |
| CN201316830Y (en) * | 2008-11-27 | 2009-09-30 | 哈尔滨汽轮机厂有限责任公司 | Rough milling cutter for concave groove |
| CN102922013A (en) * | 2012-10-25 | 2013-02-13 | 南京航空航天大学 | Cavity-characteristic-based high-efficiency rough machining method of aircraft structural part |
| CN203936397U (en) * | 2014-06-16 | 2014-11-12 | 陆安琪 | A kind of knife bar of replaceable cutter |
| CN104385023A (en) * | 2014-10-22 | 2015-03-04 | 湘潭大学 | Inner cooling damping heat-shrinkable tool bar device |
| CN204672991U (en) * | 2015-04-20 | 2015-09-30 | 中山市利群精密实业有限公司 | The cutter arbor device of Digit Control Machine Tool |
-
2015
- 2015-04-20 CN CN201510184748.6A patent/CN104785829A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080232911A1 (en) * | 2007-03-23 | 2008-09-25 | Hyatt Gregory A | Method and assembly for rotating a cutting insert during a turning operation and inserts used therein |
| CN101200038A (en) * | 2007-12-13 | 2008-06-18 | 北京理工大学 | Microminiature high speed tool shank |
| CN201316830Y (en) * | 2008-11-27 | 2009-09-30 | 哈尔滨汽轮机厂有限责任公司 | Rough milling cutter for concave groove |
| CN102922013A (en) * | 2012-10-25 | 2013-02-13 | 南京航空航天大学 | Cavity-characteristic-based high-efficiency rough machining method of aircraft structural part |
| CN203936397U (en) * | 2014-06-16 | 2014-11-12 | 陆安琪 | A kind of knife bar of replaceable cutter |
| CN104385023A (en) * | 2014-10-22 | 2015-03-04 | 湘潭大学 | Inner cooling damping heat-shrinkable tool bar device |
| CN204672991U (en) * | 2015-04-20 | 2015-09-30 | 中山市利群精密实业有限公司 | The cutter arbor device of Digit Control Machine Tool |
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Application publication date: 20150722 |
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