CN201300217Y - Cutting tool arbor structure for machine tools - Google Patents
Cutting tool arbor structure for machine tools Download PDFInfo
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- CN201300217Y CN201300217Y CNU2008201429705U CN200820142970U CN201300217Y CN 201300217 Y CN201300217 Y CN 201300217Y CN U2008201429705 U CNU2008201429705 U CN U2008201429705U CN 200820142970 U CN200820142970 U CN 200820142970U CN 201300217 Y CN201300217 Y CN 201300217Y
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- tool
- lathe
- knife bar
- cutting tool
- hole
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Abstract
The utility model provides a cutting tool arbor structure for a machine tool. One end of the cutting tool arbor is connected to a positioning connection part of the machine tool, and the other end thereof is connected to a positioning connection part of a tool bit. The cutting tool arbor comprises a positioning surface connected with the machine tool, wherein, a cylindrical surface connected with the positioning connecting part of the machine tool is arranged at one end of the positioning surface; a sheath of the cutting tool arbor connected with the tool bit is arranged at the other end of the positioning surface; a tool bit positioning through hole and a clamping device are arranged in the sheath of the cutting tool arbor; a bolt hole is formed on one side of the sheath of the cutting tool arbor; a bolt is arranged in the bolt hole; and the bolt is connected with the clamping device. The utility model has the effects that the robustness of the cutting tool arbor is enhanced; the wide application of a combined cutting tool is realized; the work efficiency and the stability of product quality are improved as well as the processing time is reduced; the frequency of setting tool is reduced; the operation is convenient; and the possibility of incorrect manipulation is reduced. The utility model can customize combined tool bits by using the cutting tool arbor, that is, each tool bit is provided with 2 to 3 blades, and can fulfill the processing of different parts, thereby reducing tool positions, and enabling a simple process of a dedicated machine tool to be carried out on a common machine tool.
Description
Technical field
The utility model relates to a kind of knife bar, particularly a kind of lathe lever structure.
Background technology
The effect of knife bar is to connect cutter head and lathe, and makes cutter head can extend to the process safety zone, avoids workpiece and lathe to interfere.So the position that is located by connecting of the position that is located by connecting, knife bar and the cutter head of knife bar and lathe is vital 2 points.The position of working the effect of being located by connecting is respectively the cutter head shown in Figure 1 and the connecting portion of knife bar, the knife bar shown in Figure 2 and the connecting portion of lathe.
Japan SEIKI lathe is the general NC lathe, and the box cupling production of incompatibility our company needs in Machine Tool design, because the knife bar of this lathe is common boring bar, because knife bar intensity is low, the bite of permission is less, easily produces the phenomenon of screw thread ripple.At 3-4mm, amount of feeding 0.7mm/ changes for the processing request back engagement of the cutting edge in enormous quantities of box cupling, for common boring bar extremely difficulty satisfy this machined parameters.
The box cupling machined parameters has more than the 8-9 item, yet this lathe cutter platform has only 6 cutter spacing, and each cutter spacing can only be finished the processing of a parameter, causes the existing cutter spacing of lathe can not satisfy the production requirement of box cupling.Because the general knife bar of machine adopted, all tool settings again when at every turn changing specification, it is inclined to one side to adjust how much cuttves, causes debug difficulties, and debugging is complicated, is not easy to operation and inefficiency.
Summary of the invention
For solving the problem that exists in the above-mentioned lathe knife bar design, the purpose of this utility model provides a kind of lathe lever structure, is beneficial to increase its intensity, adopts dado head to reach the purpose that same knife bar can be realized multiple operation processing.
For achieving the above object, the technical solution adopted in the utility model provides the lathe lever structure, one end of this knife bar is connected in the position that is located by connecting of lathe, its other end is connected in the position that is located by connecting of cutter head, wherein: this knife bar includes the locating surface that is connected with lathe, one side of locating surface is provided with and the lathe face of cylinder that the position is connected that is located by connecting, and the opposite side of locating surface is provided with the knife bar cover that is connected with cutter head; Be provided with cutter head positioning through hole and gripping mechanism in described knife bar cover, a side of overlapping at knife bar is provided with bolt hole, in this hole bolt is housed, and bolt is connected with gripping mechanism.
Described gripping mechanism is a disk cam mechanism.
Described cutter head positioning through hole is to the cutter head positioning through hole end conical through-hole of falling the triangular from locating surface.
Each corner angle of the described conical through-hole of falling the triangular are rounding off, and the rounding off radius is R=6-6.5mm.
The tapering of the described conical through-hole of falling the triangular is 7/24 ± 15 '.
Effect of the present utility model is 1, by former lathe cutter platform cutter spacing locating hole size design knife bar, the general NC lathe is improved to professional lathe, and strengthen its knife bar intensity and realize the extensive use of gang tool, increase work efficiency when reducing process time and the stability of product quality.Adopt lengthening, the overstriking knife bar, and, make the quick-changing type knife bar according to the lathe production requirement, and make things convenient in enormous quantities, the fast pace processing request of box cupling, satisfy back engagement of the cutting edge at 3-4MM, amount of feeding 0.7MM/ reincarnation is produced.2, reduce the frequency of tool setting, especially in the process of the instrument of replacing, calculated the cuttves benefit how much before writing, utilize program to use G10 to write, lathe is mended from how much cuttves reading point of a knife, handled easily, the possibility of minimizing maloperation.3, increase the possibility that knife bar intensity has reduced ripple behind the overstriking knife bar, improved product quality.4, utilize knife bar dado head customized, each cutter head can a harness 2-3 blade, and can finish the processing of different parts, thereby has reduced cutter spacing, has solved the difficult problem of the simple processing of machine tool.
Description of drawings
Fig. 1 is a knife bar bulk junction composition of the present utility model;
Fig. 2 is a knife bar of the present utility model bottom surface location structure schematic diagram;
Fig. 3 is knife bar perspective structure figure of the present utility model;
Fig. 4 is cutter head structure figure of the present utility model.
Among the figure:
1, cutter head positioning through hole 2, locating surface 3, the face of cylinder
4, the triangular pyramid connector of knife bar cover 5, cutting fluid pod apertures 6, cutter head
7, bolt 8, gripping mechanism
The specific embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated lathe lever structure of the present utility model.
The locate mode that one side one hole of the employing of this knife bar adds an independent alignment pin as shown in Figure 2, can limit its six-freedom degree fully.Because knife bar needs to bear very large cutting force in reality processing, so the mode that this knife bar has adopted unique big locating surface design to combine with the design of overstriking knife bar makes this knife bar can bear very large cutting force and can not produce the phenomenons such as vibration that the vibration that produces owing to locating surface is insecure and knife bar insufficient rigidity cause.
Shown in Fig. 1,3, lathe lever structure of the present utility model, one end of this knife bar is connected in the position that is located by connecting of lathe, its other end is connected in the position that is located by connecting of cutter head, it is characterized in that: this knife bar includes the locating surface 2 that is connected with lathe, one side of locating surface 2 is provided with and the lathe face of cylinder 3 that the position is connected that is located by connecting, and the opposite side of locating surface 2 is provided with the knife bar cover 4 that is connected with cutter head; Be provided with cutter head positioning through hole 1 and gripping mechanism 8 in described knife bar cover 4, be provided with bolt hole in a side of knife bar cover 4, bolt 7 is housed in this hole, bolt 7 is connected with gripping mechanism 8.
The disk cam mechanism that described gripping mechanism 8 is, this gripping mechanism 8 is a kind of disk cam mechanism in the mechanical transmission mechanism of conventional machinery handbook Volume Four, bolt 7 is connected with this cam mechanism, realizes that knife bar cover 4 moves axially.Described cutter head positioning through hole 1 is the 1 end conical through-hole of falling the triangular from locating surface 2 to the cutter head positioning through hole, each corner angle of the described conical through-hole of falling the triangular are rounding off, the rounding off radius is R=6-6.5mm, the tapering of the described conical through-hole of falling the triangular is 7/24 ± 15 '.
Adopt knife bar to insert fast-assembling connected mode in the knife bar cover 4 at knife bar and cutter head, its basic structure tightens mechanism by the hole axle cooperation of the leg-of-mutton locating surface of class and inside and forms.Class triangle location and basic characteristics: vertical axial is for being similar to a leg-of-mutton shape, and its acute angle all changes the rounding off that large circular arc radius is R=6mm into.The integral body in axle, hole all is treated to the fit form of Morse tapering.So the location design can guarantee that the installation of cutter head is very simple, and the location is very solid and reliable, can not produce owing to the not firm processing problems that causes in location.Be equipped with inner spreading formula gripping mechanism, this gripping mechanism is the motion that utilizes disk cam mechanism conventional in the mechanical handbook to connect, realization bolt 7 is connected with gripping mechanism 8, and cutter head shown in Figure 4 is fixing by triangular pyramid connector 6 chuckings of cutter head, makes that package unit is very easy to be installed.
By the design of lathe cutter platform and the relevant introduction of machine specifications, this lathe is the logical Digit Control Machine Tool of a Daepori, also there are sizable gap in production in enormous quantities and quality of stability for box cupling, by observing and simple measurement calculating, think by former cutter platform cutter spacing hole redesign knife bar, adopt quick turning cutting tool to reach quick replacing
On lathe during processing parts, actual turning only accounts for 1/3 of whole man-hours process time, and be the detection of transposition, cutting element and workpiece of replacing, Tool in Cutting sword of the inspection of lathe and preparation, cutting element and the man-hour that workpiece is changed all the other man-hours of 2/3.When using original cutting tool, be 8.5 minutes the average time of its cutting tool exchange, and be 2.5 minutes the average time of Tool in Cutting sword transposition; And use exchange cutting element system fast, then can be foreshortened to average 1 minute the time of aforementioned exchange and transposition.Use 1～2 to clamp cutter holder, when 4～10 kinds of cutter tips were combined, can shorten to 50～200 hours the index time of the exchange of annual cutting element and Tool in Cutting sword.Facts have proved, if can will account for downtime in part processing whole man-hours 2/3 shorten significantly, be used for actual cut processing the downtime that will shorten, then production efficiency just can improve about 25%.
The quick exchange cutting tool of the structure by using lathe knife bar of the present utility model, the remarkable result that can obtain to cut down finished cost.Adopt exchange cutting element system fast, as shown in Figure 3, be applicable to the box cupling requirements of large-scale production.
This syndeton is a kind of high accuracy polyhedron, the syndeton that adopts location, 7/24 tapering two sides to clamp.In nearly all syndeton, the transmission of the cutting moment of torque all is to use driving key transmission usually, therefore will produce stress and concentrate on driving key, and this is to having a significant impact in clamping rigidity, service life.In addition, also can produce the phase error of being brought by driving key, particularly more remarkable aspect high at the center of turning processing, this will cause precise decreasing.And that this knife bar is designed to is polyhedron-shaped, does not have driving key, and the cutting moment of torque is evenly distributed, thereby has improved torsional rigid, does not also have phase error.This shows that this syndeton has improved self-lock force, reliability is higher.
Aspect operability and versatility, with lathe and the combined handle of a knife that five specifications are arranged of processing.Automatically the ATC grabbing groove of correspondence is all arranged on these handle of a knifes, and can realize the internal feed of cutting fluid, as shown in Figure 3.
Aspect the clamping rigidity, the clamping rigidity of handle of a knife and location, two sides clamping handle of a knife is done one more as can be known, the point of a knife displacement that the cutting moment of torque of turning processing produces: the maximum main cutting force of bearing when handle of a knife is 17KN, be cutting-in 5mm, during amount of feeding 1.6mm/r, its displacement is 0.1mm, and its clamping rigidity is 4 times of HSK handle of a knife, this is because the polyhedron-shaped design of the no driving key of employing is evenly distributed on the whole handle of a knife stress, thereby has improved torsional rigidity.The displacement that Milling Process feeding cutting component produces point of a knife is: when maximum main cutting force was 17KN, displacement was 0.1mm, was about 1/3 of HSK handle of a knife point of a knife displacement.Be that the location, two sides clamps handle of a knife equally, the self-locking that 1/20 tapering is produced has better bending strength.
Aspect the clamping precision, because handle of a knife adopts no key polyhedron-shaped, so the clamping precision is higher, shown in Fig. 1,4.
Aspect durability, handle of a knife through overtesting, the phenomenon that stress is concentrated do not occur in turning processing, use reliable and stable, the durability height.
Original-pack use φ 60mm knife bar relies on the bolted of 2-3 bar M6, and at first bonding strength is low, and secondly the knife bar diameter is little, vibrates owing to these two main causes cause knife bar in cutting process, to such an extent as to ripple appears in processed workpiece.After adopting the handle of a knife of C6, increased the knife bar diameter and be increased to φ 115mm from φ 60mm, the knife bar after the increase has the intensity of more increasing, and has reduced the possibility of knife bar vibration, has fundamentally eliminated the appearance of ripple by the cutter head connection of high clamping precision.
Claims (5)
1, a kind of lathe lever structure, one end of this knife bar is connected in the position that is located by connecting of lathe, its other end is connected in the position that is located by connecting of cutter head, it is characterized in that: this knife bar includes the locating surface (2) that is connected with lathe, one side of locating surface (2) is provided with and the lathe face of cylinder (3) that the position is connected that is located by connecting, and the opposite side of locating surface (2) is provided with the knife bar cover (4) that is connected with cutter head; Be provided with cutter head positioning through hole (1) and gripping mechanism (8) in described knife bar cover (4), be provided with bolt hole in a side of knife bar cover (4), bolt (7) is housed in this hole, bolt (7) is connected with gripping mechanism (8).
2, lathe lever structure according to claim 1 is characterized in that: described gripping mechanism (8) is a disk cam mechanism.
3, lathe lever structure according to claim 1 is characterized in that: described cutter head positioning through hole (1) is the end conical through-hole of falling the triangular from locating surface (2) to cutter head positioning through hole (1).
4, lathe lever structure according to claim 3 is characterized in that: each corner angle of the described conical through-hole of falling the triangular are rounding off, and the rounding off radius is R=6-6.5mm.
5, lathe lever structure according to claim 3 is characterized in that: the tapering of the described conical through-hole of falling the triangular is 7/24 ± 15 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201429705U CN201300217Y (en) | 2008-11-07 | 2008-11-07 | Cutting tool arbor structure for machine tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201429705U CN201300217Y (en) | 2008-11-07 | 2008-11-07 | Cutting tool arbor structure for machine tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201300217Y true CN201300217Y (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201429705U Expired - Lifetime CN201300217Y (en) | 2008-11-07 | 2008-11-07 | Cutting tool arbor structure for machine tools |
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| CN (1) | CN201300217Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848233A (en) * | 2012-09-17 | 2013-01-02 | 李理 | Limiting fixture for milling machine |
| CN104259497A (en) * | 2014-09-25 | 2015-01-07 | 哈尔滨汽轮机厂有限责任公司 | Cutter bar sleeve for numerically controlled lathe |
| CN105710402A (en) * | 2016-03-09 | 2016-06-29 | 郑州市钻石精密制造有限公司 | Non-circular conical-surface straight tightening-type connector |
| CN107127371A (en) * | 2017-06-14 | 2017-09-05 | 茵科门控（珠海保税区）有限公司 | The height adjustment such as cutter instrument and numerical control counterbore mechanism |
| CN107538023A (en) * | 2017-10-18 | 2018-01-05 | 芜湖新兴新材料产业园有限公司 | A kind of cast tube sockets process knife rest |
| CN113857590A (en) * | 2021-09-30 | 2021-12-31 | 中国航发南方工业有限公司 | Gear shaping cutter bar for spline machining and gear shaping cutter bar thickening method |
-
2008
- 2008-11-07 CN CNU2008201429705U patent/CN201300217Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848233A (en) * | 2012-09-17 | 2013-01-02 | 李理 | Limiting fixture for milling machine |
| CN104259497A (en) * | 2014-09-25 | 2015-01-07 | 哈尔滨汽轮机厂有限责任公司 | Cutter bar sleeve for numerically controlled lathe |
| CN105710402A (en) * | 2016-03-09 | 2016-06-29 | 郑州市钻石精密制造有限公司 | Non-circular conical-surface straight tightening-type connector |
| CN107127371A (en) * | 2017-06-14 | 2017-09-05 | 茵科门控（珠海保税区）有限公司 | The height adjustment such as cutter instrument and numerical control counterbore mechanism |
| CN107538023A (en) * | 2017-10-18 | 2018-01-05 | 芜湖新兴新材料产业园有限公司 | A kind of cast tube sockets process knife rest |
| CN113857590A (en) * | 2021-09-30 | 2021-12-31 | 中国航发南方工业有限公司 | Gear shaping cutter bar for spline machining and gear shaping cutter bar thickening method |
| CN113857590B (en) * | 2021-09-30 | 2022-08-30 | 中国航发南方工业有限公司 | Gear shaping cutter bar for spline machining and gear shaping cutter bar thickening method |
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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: 20090902 |