CN104924136B - A kind of BT handle of a knifes high-speed cutting mechanism and application method - Google Patents
A kind of BT handle of a knifes high-speed cutting mechanism and application method Download PDFInfo
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- CN104924136B CN104924136B CN201510385680.8A CN201510385680A CN104924136B CN 104924136 B CN104924136 B CN 104924136B CN 201510385680 A CN201510385680 A CN 201510385680A CN 104924136 B CN104924136 B CN 104924136B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention discloses a kind of BT handle of a knifes high-speed cutting mechanism and application method, belong to numerical control machine tool cutting processing technique field.It includes BT handle of a knifes, main shaft, tool-broaching mechanism, blind rivet and cushion cover, the end face at the non-Cutting tool installation manner end of BT handle of a knifes is handle of a knife rear end face, the center of handle of a knife rear end face is provided with the frustum of a cone, blind rivet is installed on the center of frustum of a cone end face, main shaft is hollow shaft, end face of the main shaft close to handle of a knife rear end face one end is main shaft front end face, front-end of spindle face centre is provided with taper hole, the shape of taper hole matches with the frustum of a cone, the frustum of a cone is installed in taper hole, cushion cover is arranged between handle of a knife rear end face and front-end of spindle face, tool-broaching mechanism is installed in alignment of shafts cavity, tool-broaching mechanism and blind rivet phase clamping.The present invention makes BT handle of a knifes realize high-speed cutting, and the contact stiffness and repetitive positioning accuracy of BT handle of a knifes are high, high-speed cutting processing precision and efficiency high, improves cutter and lathe service life, and can substitute HSK handle of a knifes and uses.
Description
Technical field
The invention belongs to numerical control machine tool cutting processing technique field, more specifically to a kind of BT handle of a knifes high-speed cutting
Mechanism and application method.
Background technology
High-speed cutting processing is that a kind of of 21 century integrates efficient, high-quality, the advanced manufacturing technology of low consumption, in routine
A series of problems of puzzlement is enjoyed in machining, is resolved by the application of high-speed cutting processing.High-speed cutting processing
The not exclusively raising of the speed of mainshaft, and require that cutting tool system has very high rigidity, security, flexibility, dynamic balancing
Characteristic and operation convenience；Meanwhile, the clamping to coupling stiffness, precision and the handle of a knife of tooling system and lathe interface to cutter
Power and clamp precision etc. are proposed very high requirement, and handle of a knife system rigidity deficiency will cause tooling system to vibrate or tilt, and make
Machining accuracy and processing efficiency reduction, and system vibration can aggravate tool wear, reduction cutter and lathe service life.Mesh
Preceding domestic vertical machining centre main shaft handle of a knife use BT handle of a knifes, BT handle of a knifes load spindle taper hole in, tool-broaching mechanism by with
The connected blind rivet of BT handle of a knifes tenses BT handle of a knifes, the conical surface of BT handle of a knifes is tightly pressed against on spindle taper hole face, so that BT knives
Handle positions clamping on main shaft, but with the continuous improvement of machining center cutting speed, due to the effect of centrifugal force, spindle taper hole
Occur radial dilatation with the taper shank of handle of a knife, when taper shank amount of expansion is less than spindle taper hole amount of expansion, taper shank and spindle taper hole it
Between there is fit clearance, then, in the presence of stretching screw pulling force, taper shank drive cutter axial displacement, cause cutter in height
Axially position precision reduction during speed processing；Meanwhile, during high-speed cutting, handle of a knife can produce very big centrifugal force, knife bar can be caused curved
Song simultaneously produces vibrations, and its result will cause the reduction of part to be processed quality, even result in tool damage.
Such as China Patent Publication No. CN 201239805, publication date on May 20th, 2009, a kind of disclosed pop rivet type universal
Main shaft, it, which includes being provided with main shaft, main shaft medium pore on pull bar, pull bar, sets disk spring, and pull bar front end is arranged on card
In pawl, and engaged with claw tension-type, the rear end of a blind rivet is arranged in claw, and is engaged with claw tension-type, before blind rivet
End is threadedly coupled with handle of a knife, and handle of a knife is connected with main shaft.This application case changes the connected mode of main shaft and blind rivet, makes main shaft can
Supported the use with the blind rivet simultaneously with JT handle of a knifes, BT handle of a knifes etc., increase handle of a knife interchangeability, reduce amount of parts, but should
The handle of a knife of application case is still to compress by the conical surface with main shaft and is connected, during handle of a knife high-speed cutting processing, there is above-mentioned cutter axial direction
Positioning precision is low, the problem of knife bar bending shakes and processing part quality is low.
And for example U of China Patent Publication No. CN 203779180, publication date August in 2014 20 days, disclosed one kind it is horizontal plus
Work center clamping mechanism for knife handle, it includes hollow shaft, pumping rod, tapered sleeve, blind rivet, sleeve and driving source, and the hollow shaft is offered
The axis hole of front and rear insertion, the pumping rod, tapered sleeve, blind rivet and sleeve are arranged in the axis hole, the pumping rod, tapered sleeve and blind rivet
By rear to being before sequentially connected, described sleeve is arranged on the front end of hollow shaft, front end with blind rivet after handle of a knife is positioned by sleeve
Connection, the rear end of pumping rod is stretched out hollow shaft and is connected with driving source, and it is rotatable to be provided with least two on the side wall of tapered sleeve front end
Steel ball, the diameter of the steel ball is more than the thickness of tapered sleeve side wall, and is set through tapered sleeve side wall, and the rear end of the blind rivet is provided with cocker
The positioning convex ring at steel ball is located at, the rear end of blind rivet is connected to by the positioning convex ring on the steel ball of tapered sleeve front end.This application case
It is the connected mode by changing clamping mechanism for knife handle and blind rivet, improves reliability and flexibility that handle of a knife is clamped, enhance machine
The exchange performance of tool parts, but equally, the fit system of handle of a knife and main shaft is still by conical surface compression fit, cutter axial direction
Positioning precision is low, in high-speed cutting processing, and the problem of knife bar bending shakes and processing part quality is low can not avoid.
HSK handle of a knifes are compared with BT handle of a knifes, bigger moment of flexure, moment of torsion and the maximum speed that can be born, but their structure
Difference, it is also different from the connected mode of main shaft, so can not be used on the machining center using BT handle of a knifes.In the prior art,
Also someone tries to use intermediate conversion device, enables to use HSK handle of a knifes using the machining center of BT handle of a knifes, such as Chinese patent is public
The U of the number of opening CN 204019226, a kind of HSK handle of a knifes joint universal converting device is special disclosed in 17 days December in 2014 of publication date
Profit, is achieved that above-mentioned conversion, but the joint conversion sleeve of the conversion equipment is still by cone match pressure with machine tool chief axis
It is close to and connects, the problem of handle of a knife is brought when such a connected mode is to high-speed cutting processing can not still avoids, in addition, conversion equipment
Using the Cutting Stiffness and positional precision for also reducing cutter, the quantity of unnecessary parts is also increased.
High-speed cutting processing has turned into the important link of machining manufacturing technology, the processability of traditional BT handle mechanisms
The requirement for meeting high-speed cutting can be difficult to, on the premise of current machining center equipment is changed without, be badly in need of a kind of BT knives of design
Handle high-speed cutting mechanism, meets the demand of BT handle of a knife high-speed cutting processings.
The content of the invention
1st, the problem of solving
For BT handle of a knifes in the prior art, in High-speed machining, axially position precision is low, process part quality difference and cutter
Flimsy problem, the invention provides a kind of BT handle of a knifes high-speed cutting mechanism and application method, realizes BT handle of a knifes and cuts at a high speed
Cut, and during high-speed cutting processing, the contact stiffness and repetitive positioning accuracy of BT handle of a knifes are high, high-speed cutting processing dependable performance；Together
When, the radial direction handle of a knife alignment system of enclosed construction avoids knife bar vibration and tilted, and improves machining accuracy and efficiency, reduces
Tool wear, improves cutter and lathe service life.
2nd, technical scheme
To solve the above problems, the present invention is adopted the following technical scheme that.
A kind of BT handle of a knifes high-speed cutting mechanism, including BT handle of a knifes, main shaft, tool-broaching mechanism, blind rivet, and cushion cover, described BT
The end face at the non-Cutting tool installation manner end of handle of a knife is handle of a knife rear end face, and the center of handle of a knife rear end face is provided with the frustum of a cone, described drawing
Nail is installed on the center of frustum of a cone end face；Described main shaft is hollow shaft, end face of the main shaft close to handle of a knife rear end face one end
For main shaft front end face, front-end of spindle face centre is provided with taper hole, and shape and the frustum of a cone of taper hole match, and the frustum of a cone is installed on
In taper hole；Described cushion cover is arranged between handle of a knife rear end face and front-end of spindle face；Described tool-broaching mechanism is installed in main shaft
In heart cavity, tool-broaching mechanism and blind rivet phase clamping.
Preferentially, the thickness of described cushion cover is L,L>K, wherein, E is cushion cover
Modulus of elasticity, A is the face area of cushion cover, and k is the spacing in handle of a knife rear end face and front-end of spindle face, and β is the taper of the frustum of a cone,
FmaxFor the working pulling force of tool-broaching mechanism.
Preferentially, the material of described cushion cover is 40CrNi.
Preferentially, described L-k=0.006~0.009mm.
Preferentially, described β=7:24, Fmax=9000~12000N.
Preferentially, described blind rivet is connected through a screw thread with the frustum of a cone.
A kind of application method of BT handle of a knifes high-speed cutting mechanism, its step is as follows：
(a) blind rivet is installed on BT handle of a knifes, and BT handle of a knifes is loaded in the taper hole of main shaft, tool-broaching mechanism is drawn by blind rivet
Dynamic BT handle of a knifes are moved along main-shaft axis direction, the conical surface of the frustum of a cone and the conical surface of spindle taper hole on BT handle of a knifes is fitted；
(b) handle of a knife rear end face is measured and record to the spacing in front-end of spindle face, then unclamps tool-broaching mechanism, and take out BT knives
Handle；
(c) the thickness L of cushion cover is calculated,L>K, wherein, E is the modulus of elasticity of cushion cover,
A is the face area of cushion cover, and β is the taper of the frustum of a cone, and k is the spacing in handle of a knife rear end face and front-end of spindle face in step (b),
FmaxFor the working pulling force of tool-broaching mechanism；
(d) cushion cover is processed according to the result of calculation of step (c)；
(e) cushion cover set in step (d) is attached in the frustum of a cone of BT handle of a knifes, and made after the handle of a knife of cushion cover end face and BT handle of a knifes
End face fits；
(f) BT handle of a knifes in step (e) are installed in the taper hole of main shaft, tool-broaching mechanism pulls BT handle of a knifes along master by blind rivet
Axle axis direction is moved, and cushion cover end face is fitted with front-end of spindle face, the conical surface of the frustum of a cone and spindle taper hole on BT handle of a knifes
The conical surface fits, wherein, the pulling force F of tool-broaching mechanism is with time t changing rule0≤t≤
2s；
(g) the pulling force F=F of tool-broaching mechanism is keptmax, and the speed of mainshaft is adjusted to 40000r/min, measured using amesdial
The circular runout of handle of a knife is less than 0.001mm；
(h) main shaft is stalled, and waits machining.
Preferentially, survey tool is slip gauge in described step (b).
Preferentially, described step (c) and the working pulling force F of tool-broaching mechanism in step (f)max=9000~12000N.
Preferentially, the working pulling force F of described tool-broaching mechanismmax=10000N.
3rd, beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) a kind of BT handle of a knifes of BT handle of a knifes high-speed cutting mechanism of the invention are positioned simultaneously with main shaft using the conical surface and end face
The mode of connection, improves the contact stiffness and repetitive positioning accuracy of BT handle of a knifes, clamping reliability so that BT handle of a knifes can be used for height
Fast machining；The radial positioning handle mechanism of such a enclosed construction, under the pulling force effect of tool-broaching mechanism, handle of a knife and main shaft it
Between the whole conical surface and supporting end face on produce friction, eliminated knife bar vibration and tilt problem, improve machining accuracy and plus
Work efficiency rate, meanwhile, tool wear is reduced, cutter and lathe service life is improved；
(2) a kind of BT handle of a knifes high-speed cutting mechanism of the invention, it has been surprisingly found that when cushion cover thickness is L special
In the case of, i.e.,When, under the certain tool-broaching mechanism working pulling force of the work in-process heart, both ensure foot
Enough shank end face pressure clamp forces, also ensure that enough BT handle of a knife conical surface thrusts just, realize the same of the conical surface and end face
Shi Dingwei, the rigidity and location accuracy of mechanism reach best in these cases, handle of a knife is well adapted to high-speed cutting
Processing, and handle of a knife and cutting-tool's used life are long；
(3) a kind of ticking material of BT handle of a knifes high-speed cutting mechanism of the invention uses 40CrNi, special using the present invention
In the case of fixed tool-broaching mechanism working pulling force, the consistency and elasticity modulus of the material meets the thickness formula of the present invention just, together
When under this pulling force, the face frictional force between BT handle of a knifes, cushion cover and front-end of spindle face can just expire in the case where weight is most light
The rigidity of sufficient BT handle of a knifes high-speed cutting processing and the requirement of rotating speed, reduce the shearing force that cushion cover is born, are especially avoided that cushion cover
Fatigue, and cost is minimum；
(4) a kind of cushion cover thickness ratio handle of a knife rear end face of BT handle of a knifes high-speed cutting mechanism of the invention and front-end of spindle face
Big 0.006~the 0.009mm of spacing, this magnitude of interference is obtained under the working pulling force of the tool-broaching mechanism of respective settings, can be fine
The conical surface and end face that BT handle of a knifes and main shaft are realized in the case where ensureing that shearing force is minimum while the mode being located by connecting, it is ensured that
BT handle of a knifes have enough contact stiffness, and BT handle of a knifes rock small, and machining accuracy is high, meanwhile, the taper of the frustum of a cone is 7:24, it is and existing
BT handle of a knife tapers are identical, it is ensured that the versatility of handle of a knife；
(5) a kind of blind rivet of BT handle of a knifes high-speed cutting mechanism of the invention is connected through a screw thread with the frustum of a cone, convenient disassembly；
(6) a kind of alternative HSK types handle of a knife of BT handle of a knifes high-speed cutting mechanism of the invention is used, and reducing valuable handle of a knife makes
It is simple in construction with cost, it is reasonable in design, it is easy to manufacture.
(7) a kind of application method of BT handle of a knifes high-speed cutting mechanism of the invention, it is ensured that the correct installation of cushion cover, makes knife
Handle, which runs at high speed, more to be stablized, and more effectively ensure that mechanism integral rigidity and cutting precision, wherein, tool-broaching mechanism when installing handle of a knife
Pulling force F be with time t changing rule0≤t≤2s, is controlled according to this power, BT knives
Circular runout is small when handle runs at high speed, and abrasion is reduced.
Brief description of the drawings
Fig. 1 is configuration diagram of the invention.
In figure：1st, BT handle of a knifes；2nd, cushion cover；3rd, main shaft；4th, tool-broaching mechanism；5th, blind rivet；6th, front-end of spindle face；7th, handle of a knife rear end
Face；8th, the frustum of a cone.
Embodiment
Type of the present invention is further described below with reference to specific embodiments and the drawings.
Embodiment 1
As shown in figure 1, a kind of BT handle of a knifes high-speed cutting mechanism of the present embodiment, including BT handle of a knifes 1, main shaft 3, tool-broaching mechanism
4th, blind rivet 5 and cushion cover 2, the end face at the non-Cutting tool installation manner end of BT handle of a knifes 1 is handle of a knife rear end face 7, the center of handle of a knife rear end face 7
Provided with the frustum of a cone 8, blind rivet 5 is threadingly attached to the center of the end face of the frustum of a cone 8；Main shaft 3 is hollow shaft, and main shaft 3 is close
The end face of the one end of handle of a knife rear end face 7 is main shaft front end face 6, and the centre of front-end of spindle face 6 is provided with taper hole, the shape and circle of taper hole
Frustum 8 matches, and the frustum of a cone 8 is installed in taper hole；Cushion cover 2 is arranged between handle of a knife rear end face 7 and front-end of spindle face 6, this reality
The material for applying cushion cover 2 in example is 40CrNi, and tool-broaching mechanism 4 is installed in the center cavity of main shaft 3, and tool-broaching mechanism 4 mutually blocks with blind rivet 5
Connect.
In the present embodiment, the material of cushion cover 2 is 40CrNi, its elastic modulus E=210000MPa, takes the internal diameter of cushion cover 2
44mm, external diameter 64mm, then cushion cover 2 face area A=1696.46mm2, handle of a knife rear end face 7 and main shaft are measured using slip gauge
Taper β=7 of the frustum of a cone 8 of spacing k=4mm, the BT handle of a knife 1 of front end face 6:24, according to the running parameter of machining center, take drawing
The working pulling force F of cutter mechanism 4max=9000N, then the thickness of cushion cover 2 isBring into above-mentioned
Known quantity can obtain the thickness ratio handle of a knife rear end face 7 of L=4.006mm, i.e. cushion cover 2 and the big L-k=of spacing in front-end of spindle face 6
0.006mm, this thickness of cushion cover 2 can cause its anti-fatigue ability to be improved than conventional cutting mechanism in the case of this spacing
30%.
A kind of application method of BT handle of a knifes high-speed cutting mechanism of the present embodiment, its step is as follows：
(a) blind rivet 5 is installed on BT handle of a knifes 1, and BT handle of a knifes 1 is loaded in the taper hole of main shaft 3, tool-broaching mechanism 4 passes through
Blind rivet 5 pulls BT handle of a knifes 1 to be moved along the axis direction of main shaft 3, makes the conical surface of the conical surface of the frustum of a cone 8 and the taper hole of main shaft 3 on BT handle of a knifes 1
Fit；
(b) spacing that handle of a knife rear end face 7 arrives front-end of spindle face 6 is measured and recorded using slip gauge, from the foregoing, this implementation
Measured value is 4mm in example, then unclamps tool-broaching mechanism 4, and take out BT handle of a knifes 1；
(c) the thickness L of cushion cover 2 is calculated, from the foregoing, L=4.006mm；
(d) cushion cover 2 is processed according to the result of calculation of step (c)；
(e) by cushion cover in step (d) 2 sets be attached in the frustum of a cone 8 of BT handle of a knifes 1, and make the end face of cushion cover 2 and BT handle of a knifes 1
Handle of a knife rear end face 7 fits；
(f) BT handle of a knifes 1 in step (e) are installed in the taper hole of main shaft 3, tool-broaching mechanism 4 pulls BT handle of a knifes by blind rivet 5
1 moves along the axis direction of main shaft 3, the end face of cushion cover 2 is fitted with front-end of spindle face 6, on BT handle of a knifes 1 conical surface of the frustum of a cone 8 with
The conical surface of the taper hole of main shaft 3 fits, wherein, the pulling force F of tool-broaching mechanism 4 is with time t changing ruleWherein, 0≤t≤2s, Fmax=9000N, is controlled according to this power, and BT handle of a knifes run at high speed
When circular runout it is small, abrasion reduce；
(g) after 2s, the pulling force F=F of tool-broaching mechanism 4max, and keep constant, while adjusting the rotating speed of main shaft 3 to 40000r/
Min, the circular runout for measuring BT handle of a knifes 1 using amesdial is less than 0.001mm；
(h) main shaft 3 is stalled, and waits machining.
A kind of BT handle of a knifes high-speed cutting mechanism of the present embodiment is by the way of the conical surface and end face Dual positioning, in broaching tool machine
Under the working pulling force effect of structure, the conical surface and end face between BT handle of a knifes and main shaft support and produce friction and tied there is provided closing simultaneously
The radial positioning of structure, improves the contact stiffness and repetitive positioning accuracy of BT handle of a knifes, reliable clamping, and eliminated knife bar vibration and
Tilt problem, improves machining accuracy and processing efficiency, meanwhile, tool wear is also reduced, cutter is improved and lathe uses the longevity
Life, BT handle of a knifes service life improves 80%, and the service life of lathe improves 75%.
Embodiment 2
Substantially the same manner as Example 1, difference is, the working pulling force F of tool-broaching mechanism 4max=10000N, it is resulting
The thickness L=4.007mm of cushion cover 2, i.e. the thickness ratio handle of a knife rear end face 7 of cushion cover 2 and the big L-k=of spacing in front-end of spindle face 6
0.007mm, and the circular runout of BT handle of a knifes 1 is less than 0.001mm, BT handle of a knifes service life improves 77%, the service life of lathe
Improve 65%.
Embodiment 3
Substantially the same manner as Example 1, difference is, the working pulling force F of tool-broaching mechanism 4max=12000N, it is resulting
The thickness L=4.009mm of cushion cover 2, i.e. the thickness ratio handle of a knife rear end face 7 of cushion cover 2 and the big L-k=of spacing in front-end of spindle face 6
0.009mm, and the circular runout of BT handle of a knifes 1 is less than 0.001mm, BT handle of a knifes service life improves 73%, the service life of lathe
Improve 72%.
Example of the present invention is only that the preferred embodiment of the present invention is described, not to present inventive concept and
Scope is defined, on the premise of design philosophy of the present invention is not departed from, technology of this area engineers and technicians to the present invention
Various modifications and improvement that scheme is made, all should fall into protection scope of the present invention.
Claims (5)
1. a kind of BT handle of a knifes high-speed cutting mechanism, including BT handle of a knifes (1), main shaft (3), tool-broaching mechanism (4) and blind rivet (5), it is special
Levy and be：Also include cushion cover (2), the end face at the non-Cutting tool installation manner end of described BT handle of a knifes (1) is handle of a knife rear end face (7), handle of a knife
The center of rear end face (7) is provided with the frustum of a cone (8), and described blind rivet (5) is installed on the center of the frustum of a cone (8) end face；
Described main shaft (3) is hollow shaft, and end face of the main shaft (3) close to handle of a knife rear end face (7) one end is main shaft front end face (6), main shaft
Front end face (6) centre is provided with taper hole, and shape and the frustum of a cone (8) of taper hole match, and the frustum of a cone (8) is installed in taper hole；
Described cushion cover (2) is arranged between handle of a knife rear end face (7) and front-end of spindle face (6)；Described tool-broaching mechanism (4) is installed on master
In axle (3) center cavity, tool-broaching mechanism (4) and blind rivet (5) phase clamping；The thickness of described cushion cover (2) is L,L>K, wherein, E is the modulus of elasticity of cushion cover (2), and A is the face area of cushion cover (2), and k is
Handle of a knife rear end face (7) and the spacing of front-end of spindle face (6), β are the taper of the frustum of a cone (8), FmaxFor the work of tool-broaching mechanism (4)
Pulling force, L-k=0.006~0.009mm；The material of described cushion cover (2) is 40CrNi；Described β=7:24, Fmax=9000
~12000N.
2. a kind of BT handle of a knifes high-speed cutting mechanism according to claim 1, it is characterised in that：Described blind rivet (5) and circle
Frustum (8) is connected through a screw thread.
3. a kind of application method of BT handle of a knifes high-speed cutting mechanism according to claim 1, its step is as follows：
(a) blind rivet (5) is installed on BT handle of a knifes (1), and BT handle of a knifes (1) loaded in the taper hole of main shaft (3), tool-broaching mechanism
(4) pull BT handle of a knifes (1) to be moved along main shaft (3) axis direction by blind rivet (5), make the conical surface of the frustum of a cone (8) on BT handle of a knifes (1)
Fitted with the conical surface of main shaft (3) taper hole；
(b) spacing that handle of a knife rear end face (7) arrives front-end of spindle face (6) is measured and recorded, then unclamp tool-broaching mechanism (4), and take
Go out BT handle of a knifes (1)；
(c) the thickness L of cushion cover (2) is calculated,L>K, wherein, E is the springform of cushion cover (2)
Amount, A is the face area of cushion cover (2), and β is the taper of the frustum of a cone (8), before k is handle of a knife rear end face (7) in step (b) and main shaft
The spacing of end face (6), FmaxFor the working pulling force of tool-broaching mechanism (4)；
(d) cushion cover (2) is processed according to the result of calculation of step (c)；
(e) cushion cover in step (d) (2) set is attached in the frustum of a cone of BT handle of a knifes (1) (8), and makes cushion cover (2) end face and BT handle of a knifes
(1) handle of a knife rear end face (7) fits；
(f) BT handle of a knifes (1) in step (e) are installed in the taper hole of main shaft (3), tool-broaching mechanism (4) pulls BT by blind rivet (5)
Handle of a knife (1) is moved along main shaft (3) axis direction, and the other end and front-end of spindle face (6) for making cushion cover (2) fit, BT handle of a knifes
(1) conical surface of the conical surface of the frustum of a cone (8) and main shaft (3) taper hole fits on, wherein, the pulling force F of tool-broaching mechanism (4) is with time t
Changing rule be0≤t≤2s；
(g) the pulling force F=F of tool-broaching mechanism (4) is keptmax, and main shaft (3) rotating speed is adjusted to 40000r/min, surveyed using amesdial
The circular runout for measuring BT handle of a knifes (1) is less than 0.001mm；
(h) main shaft (3) is stalled, and waits machining.
4. a kind of application method of BT handle of a knifes high-speed cutting mechanism according to claim 3, it is characterised in that：Described step
Suddenly survey tool is slip gauge in (b).
5. a kind of application method of BT handle of a knifes high-speed cutting mechanism according to claim 3, it is characterised in that：Described drawing
The working pulling force F of cutter mechanism (4)max=10000N.
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| CN105478820A (en) * | 2015-10-14 | 2016-04-13 | 常州市鹰皇冠进出口有限公司 | Integral chuck for diesel engine processing |
| CN105965516B (en) * | 2016-06-08 | 2018-10-09 | 武汉理工大学 | Floating quick-changing type end-effector suitable for deburring |
| CN107860345B (en) * | 2017-11-17 | 2023-07-07 | 深圳市圆梦精密技术研究院 | Auxiliary device for testing jump of knife handle |
| CN108555364B (en) * | 2018-03-07 | 2019-05-14 | 湖南工学院 | The tool system and application method that high-efficiency and precision for high-rate wireless LAN positions |
| CN114012173B (en) * | 2021-10-27 | 2022-12-20 | 沧州渤海新区南大港三和机械有限公司 | Broaching device and numerically controlled lathe |
| CN115570423B (en) * | 2022-09-16 | 2024-02-27 | 宁波海天精工股份有限公司 | Vertical and horizontal dual-purpose high-speed lengthened right-angle head for deep cavity machining |
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| KR20060122023A (en) * | 2005-05-25 | 2006-11-30 | 창원대학교 산학협력단 | The structure of a tool hold shank of a superspeed spindle |
| CN201239805Y (en) * | 2008-07-18 | 2009-05-20 | 南通科技投资集团股份有限公司 | Pop rivet type universal main spindle |
| CN204725193U (en) * | 2015-06-30 | 2015-10-28 | 江苏元利数控机床有限公司 | A kind of BT handle of a knife high-speed cutting mechanism |
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Address after: 210046, No. 1, Purple East Road, Qixia District, Jiangsu, Nanjing Applicant after: JIANGSU YUANLI CNC MACHINE TOOL CO., LTD. Address before: 210002 building HI, 9 floor, Jinling imperial garden, No. 333 Taiping South Road, Jiangsu, Nanjing Applicant before: JIANGSU YUANLI CNC MACHINE TOOL CO., LTD. |
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Effective date of registration: 20190611 Address after: 210000 C17 Building, No. 9 Kechuang Avenue, Zhongshan Science Park, Liuhe District, Nanjing City, Jiangsu Province Patentee after: JIANGSU YUANLI AVIA PRECISION MACHINE TOOL CO., LTD. Address before: No. 1 Zidong Road, Qixia District, Nanjing City, Jiangsu Province Patentee before: JIANGSU YUANLI CNC MACHINE TOOL CO., LTD. |