CN108526591A - A kind of shoes mould mold core numerical control cutting machine - Google Patents
A kind of shoes mould mold core numerical control cutting machine Download PDFInfo
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- CN108526591A CN108526591A CN201810672016.5A CN201810672016A CN108526591A CN 108526591 A CN108526591 A CN 108526591A CN 201810672016 A CN201810672016 A CN 201810672016A CN 108526591 A CN108526591 A CN 108526591A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 56
- 238000003754 machining Methods 0.000 claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000003028 elevating effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000004807 localization Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000002173 cutting fluid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 239000011162 core material Substances 0.000 description 57
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000003801 milling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 210000002683 foot Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 210000004744 fore-foot Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/08—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for bringing the circular saw blade to the workpiece or removing same therefrom
-
- 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
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1076—Arrangements for cooling or lubricating tools or work with a cutting liquid nozzle specially adaptable to different kinds of machining operations
-
- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/14—Control or regulation of the orientation of the tool with respect to the work
Abstract
The invention discloses a kind of shoes mould mold core numerical control cutting machines；Include the lathe bed being made of pedestal and holder, processing platform is set on pedestal, stand is set in the side of processing platform, numerical control operating case is arranged in the other side；Processing platform includes cross saddle, index dial and fixture；Cross saddle lower part is connect with lathe bed, and cross saddle top is connected with index dial, and fixture includes the electric permanent-magnet suction disc being fixed on index dial；Elevating mechanism is set on holder, and the machining spindle for being parallel to processing platform is fixed on elevating mechanism, and saw blade is equipped on machining spindle.This equipment can substitute Five-axis NC Machining Center, engraving machine and hand cut equipment；The advantages of can be described as combining each equipment in the prior art and it is existing；Whole equipment shoes mould mold core at low cost, high in machining efficiency, processing is quality, and manufactured shoes are more comfortable；It is particularly due to use numerically controlled automatic cutting, avoids security risk, improve the safety of operator, reduce personnel cost.
Description
Technical field
The present invention relates to field of machining, and in particular to a kind of shoes mould mold core numerical control cutting machine.
Background technology
The mold core processing of shoes mould is the committed step of product shoes quality, with enriching for people's material life, for shoes
Level of comfort require higher and higher, especially high-heeled shoes；And the thing followed is more and more shoes according to people's foot physiology
Engineering principles are designed manufacture, it is desirable that sole can both bear the weight of wearer, ensure the quality of shoes；Also need to by
It is uniformly designed according to the pressure distribution progress pressure of people's foot, so that the people of dress has more comfortable experience, wherein most basic
Requirement be exactly that the dragon of sole needs the radian with Z-direction, when making shoes mold core, Z-direction will also have certain arc accordingly
Degree；And for entire sole, the different location of sole, the different location keel radian of heel are all not quite similar,
It needs to process one by one, virtually increases difficulty of processing.
To sum up, due to the complexity of mold core and the difficulty of technological process, have added using Five-axis NC Machining Center in the prior art
Work sole model, but since Five-axis NC Machining Center invests height, processing charges is expensive, and cost is too high, is not suitable for and adds with common
Factory；Therefore the equipment of its generally use is engraving machine or is cut by hand with saw blade；But due to the cutting of shoes mould mold core
Depth it is very deep, using engraving machine if, if depth too depth, milling cutter stress is excessive, is easy to break；In addition milling cutter
Machining path is longer, for example, 50mm deep groove, the characteristics of due to milling cutter itself, each processing capacity usually only 0.5mm
Or it is less, therefore a groove needs at least tens knives that could complete, and has for the keel mold core of sole laterally vertical
To a plurality of keel, takes and just more increase, and also more take knife, need reconditioning cutter；Therefore processing efficiency is low, increases processing
Cost.
And if using manual saw blade (i.e. horizontal milling machine) to cut, it usually needs first do the marking on engraving machine, then
It carries out cutting one by one by hand again, needs very skilled operator that could operate, but also be difficult to reach and be wanted to shoes core quality
It asks, usually such skilled worker's monthly salary will reach 10,000 yuans or more；And added using general operating personnel
If work, it is often necessary to carry out repairing type to mold core again or directly destroy entire mold core material, because the keel of sole have Z-direction
Cambered surface, milling machine using be difficult by hand accomplish the radian one of each slot muscle to, make the unevenly distributed title of the glue of shoemaking, waste glue,
High bottom out-of-flatness can also make manufactured sole dress uncomfortable；In addition the production cycle of shoes mould is very fast, from sample is taken to mould
Tool is delivered, and most week ages, with horizontal milling machine grooving, efficiency is relatively low；This just greatly consumes manpower and materials；And it uses
If artificial hand cut, also there is very high security risk, not any security protection in process, if behaviour
It is improper easy to make, and is easy to happen serious accident.
Therefore, shoes mould mold core process equipment in the prior art there are of high cost, efficiency is low, low precision, quality it is bad with
And the problem of production safety hidden danger with it is insufficient.
Invention content
The object of the present invention is to provide the quality requirements that a kind of machining accuracy can reach shoemaking producer, while improving processing
Efficiency, and the shoes mould mold core numerical control cutting machine for avoiding production accident from occurring.
The present invention adopts the following technical scheme that realization：
A kind of shoes mould mold core numerical control cutting machine；Include the lathe bed being made of pedestal and holder, processing is set on the pedestal
Stand is arranged in the side of processing platform in platform, and numerical control operating case is arranged in the other side；The processing platform include cross saddle,
Index dial and fixture；The cross saddle lower part is connect with pedestal, and the cross saddle top is connected with index dial, the folder
Tool is fixed on index dial, and two positioning screw holes have been provided on fixture, and two positioning screw holes are fixed with two on shoes mould mold core respectively
Position hole is corresponding；Elevating mechanism is set on holder, and the machining spindle for being parallel to processing platform is fixed on elevating mechanism, described to add
Saw blade is installed on work main shaft.
Further：Saw blade cover is set outside the saw blade.
Further：Cutting fluid nozzle is set on the saw blade cover.
Further：Protective cover is set outside the complete machine.
Further：The fixture is magnechuck, is provided with two anchor points on magnechuck, two anchor points respectively with shoes
Location hole on mould mold core is corresponding.
Further：Angle regulator, the angle regulator are provided between the index dial and cross saddle
Including the first fixed plate, the second fixed plate, ejector apparatus, the first fixed plate is mounted on cross saddle；The one of second fixed plate
End is rotatably connected with the first fixed plate, the other end pushes the second fixed plate with the tie point with the first fixed plate by ejector apparatus
Rotate opened with certain angle；Index dial is fixed in the first fixed plate, is fixed with second and is spiraled then tilt.
Further：The ejector apparatus is any one in hydraulic push rod, air pressure push rod, leading screw push rod, herein not
It limits.
The cutting working method of shoes mould mold core numerical control cutting machine, specifically comprises the following steps：
(1) clamping fixture for correcting position so that two positioning screw hole circle center line connectings on fixture are parallel with mechanical Y-axis；
(2) pilot pin of shoes mould mold core to be cut is placed in location hole；Establish shoes mould mold core Cutter coordinate system, correction shoe mould
Mold core position；
Due to being all provided with circular locating openings on shoes mould mold core to be processed and fixture, with two circular locating openings lines
Central point be coordinate origin；The central coordinate of circle of two circular locating openings is denoted as respectively on shoes mould to be processed：(x0, y0, z0),
(x1, y1, z1)；
Then the coordinate origin coordinate where shoes mould mold core to be processed is denoted as：
zc=0；For any point (x, y, z) on shoes mould mold core to be processed, under shoes mould mold core Cutter coordinate system
New coordinate be：
X '=(x-xc)cosα-(y-yc)sinα
Y '=(x-xc)sinα+(y-yc)cosα
Z '=z
Wherein,
(3) whether conllinear in shoes mould mold core Cutter coordinate system by calculating each point on aim curve, to judge target song
Whether line can carry out accurate machining on shoes mould mold core；
First, the first and last endpoint of aim curve is denoted as (x0, y0, z0), (x1, y1, z1)；Any sampled point is denoted as on curve
(x, y, z)；
If thenIt then can be determined that the curve is boundary curve；
If thenIt then can be determined that all the points on the curve are conllinear；
WhereinS=| (x-x0)*(y1-y)-(x1-x0)*(y1-y0) |, ∈ is given
Error 10-4；
(4) determination of cutter path：
3.1 due to center cutter point geometric locus be aim curve equidistant curve,
The then geometric locus P of center cutter0(t) it is functional relation between tool radius and aim curve：
Po(t)=P (t)+δ n (t) * r
Wherein, P (t)=(x (t), y (t), z (t)) is the parametric form of aim curve, parameter t ∈ [0,1]；R is cutter
Radius；The unit normal vector of aim curve(along Y-axis cut type) or
(cutting type along X-axis)；
If 3.2 each cutting points are discrete point, for the circular arc after broken line or discretization, spline curve, curve is equal
It is expressed as broken line, therefore the calculating of unit normal direction is also discrete, then determines cutter path in the following manner：
Assuming that there is m+1 point P on broken linei=(xi, yi, zi), i=0 ..., m remember P-1=P0, Pm+1=Pm.For point
PiThe normal vector n at placei, calculate first(cutting type along Y-axis)
Or(cutting type along X-axis), then has
Wherein | | | | it is vector field homoemorphism operation；
(5) since blade and shoes mould mold core edge are tangent, and the extended line of blade and aim curve is tangent, by gauge
Calculation obtains the initial position of blade cut --- i.e. the initial position of blade center；
H >=H or
Wherein p0To enter point of contact, r is the radius of blade, t0=(tx, ty, tz) it is p0The unit tangent vector component at place, wherein
Unit tangent vector is directed toward outside shoes mould mold core, has t for broken line0·(p1-p0) ＜ 0； 2 β of l=h cos；H=R cos β are the critical die thickness for calculating center cutter position, and h is shoes mould mold core
Actual (real) thickness, β are point p0Locate normal vector n0With the angle of vectorial (0,0,1), sine can calculate as follows with cosine：If sin β ＜ ∈, wherein error threshold ∈=10-4, then remember R=∞；If
Sin β ＜ ∈, then remember
The fixture localization method of shoes mould mold core numerical control cutting machine, includes the following steps：
(1) center point coordinate of fixture is established：
By reference point centered on the line midpoint of positioning screw hole, clamp central point are set to (w, h) two-by-two on fixture,
It is then w along the directions reference axis y or x distance along level, vertical direction distance is h；Therefore the center of fixture lifting
Axial coordinate is cut into P along y-axisc=(0, w ,-h)；It is cut into P along X-axisc=(ω, 0 ,-h)；
(2) by spin matrix by the center point coordinate in step (1) switch to horizontal plane coordinate input diced system into
Row cutting：
Setting clamp is θ with the angle of inclination of index dial, then any point P=(x, y, z) is obtained after rotation on shoes mould mold core
The position arrived is P ＇=Pc+M(P-Pc)T, wherein M is spin matrix；
When being cut along y-axis, haveWhen being cut along X-axis, have：
Beneficial effects of the present invention are：
This equipment is mainly instead of manual horizontal milling machine in the prior art；Five-axis NC Machining Center, engraving can also be substituted
Machine；This equipment compared to manual horizontal milling machine for, high yield rate (without changing model repeatedly), save processing and manufacturing cost
(being ten times of manufacturing speeds of existing manual milling machine), while improving safety in utilization (there is security protection, without human intervention)；
For Five-axis NC Machining Center, this equipment can effectively reduce cost, and operation difficulty is less than Five-axis NC Machining Center；Phase
For engraving machine, processing efficiency of the present invention is far above engraving machine, and the product quality processed equally is not less than engraving machine；
The process time of this equipment compared to for Five-axis NC Machining Center and engraving machine, be on the time both the above equipment be ten/
One；Therefore present invention the advantages of can be described as combining each equipment in the prior art and it is existing, be specifically used to make shoes mould mould
Core；Whole equipment shoes mould mold core at low cost, high in machining efficiency, processing is quality, the shoes keel made with it, good quality,
Meet the engineering principle of human foot, manufactured shoes are more comfortable；It is particularly due to use numerically controlled automatic cutting, avoid
Security risk improves the safety of operator, reduces personnel cost.
Description of the drawings
Fig. 1 is the radian machining sketch chart that existing sole keel need (by taking high-heeled shoes as an example)；
Fig. 2 is shoes mould mold core raw material mix schematic diagram；
Fig. 3 is that shoes mould mold core processes finished product schematic diagram in Fig. 2；
Fig. 4 is the sectional view of Fig. 3；
Fig. 5 is the dimensional structure diagram of the present invention；
Fig. 6 is the front view of Fig. 1；
Fig. 7 is the vertical view of Fig. 1；
Fig. 8 is the left view of Fig. 1；
Fig. 9 is the partial schematic diagram that fixture has inclination angle in Fig. 1；(ejector apparatus uses hydraulic push rod)
Figure 10 is the inclination schematic diagram of Fig. 9；
Figure 11 is 2 structural schematic diagram of embodiment；
Figure 12 is the structural representation of 3 cutting process of embodiment；
Figure 13 is the structural representation of 4 cutting process of embodiment；
Figure 14 is the structural representation of 5 cutting process of embodiment；
In Fig. 5-Fig. 8, device common in existing lathe is omitted, such as organ type protective cover, hood door, each
The devices such as driving motor and lead screw transmission.
The title of each component in Fig. 1：Sole 100, keel 101, the second keel 101-1.
The title of each attached figure label in Fig. 2, Fig. 3, Fig. 4：Shoes mould mold core 200, keel groove (broken slot) 201.
In each attached figure label titles of Fig. 5-Fig. 8：Holder 300, machining spindle 310, saw blade 320, pedestal 400, cross
Planker 500, index dial 600, fixture 700, shoes mould 800.
Each attached figure label title in Fig. 9 figures, 10：Angular adjustment apparatus 900, the first fixed plate 910, the second fixed plate
920, ejector apparatus 930.
Each attached figure label title in Figure 11-14：Ap be back engagement of the cutting edge (i.e. cutting-in-Z-direction), f for the amount of feeding (i.e. X to
Forward travel distance), A keel (sole reinforcing rib) radian.
Specific implementation mode
The present invention is elaborated further below in conjunction with the accompanying drawings.
A kind of shoes mould mold core numerical control cutting machine；Include the lathe bed being made of pedestal 400 and holder 300, on the pedestal 400
Processing platform is set, stand is set in the side of processing platform, numerical control operating case is arranged in the other side；The processing platform includes ten
Word planker 500, index dial 600 and fixture 700；The cross saddle lower part is connect with pedestal, and the cross saddle top connects
It is connected to index dial, the fixture is fixed on index dial 600, and two positioning screw holes, two positioning screw holes have been provided on fixture 700
It is corresponding with two location holes on shoes mould mold core respectively；Elevating mechanism is set on holder, is parallel to the machining spindle of processing platform
It is fixed on elevating mechanism, saw blade is installed on the machining spindle.
As Fig. 1 is-Fig. 3 shown in, be the form of usual sole 100, all have laterally longitudinal keel 101 with support leg
The gravity of step, according to the difference of shoe style, the radian of the keel of stress is also different, and in machine-shaping, makes its mold core
Cutting processing will be carried out on mold core as shown in Fig. 2-3, according to the difference of keel radian.
The cutting working method of shoes mould mold core numerical control cutting machine, specifically comprises the following steps：
(1) clamping fixture for correcting position so that two positioning screw hole circle center line connectings on fixture are parallel with mechanical Y-axis；
(2) pilot pin of shoes mould mold core to be cut is placed in location hole；Establish shoes mould mold core Cutter coordinate system, correction shoe mould
Mold core position；
Due to being all provided with circular locating openings on shoes mould mold core to be processed and fixture, with two circular locating openings lines
Central point be coordinate origin；The central coordinate of circle of two circular locating openings is denoted as respectively on shoes mould to be processed：(x0, y0, z0),
(x1, y1, z1)；
Then the coordinate origin coordinate where shoes mould mold core to be processed is denoted as：
zc=0；
For any point (x, y, z) on shoes mould mold core to be processed, the new seat under shoes mould mold core Cutter coordinate system
It is designated as：
X '=(x-xc)cosα-(y-yc)sinα
Y=(x-xc)sinα+(y-yc)cosα
Z '=z
Wherein,
(3) whether conllinear in shoes mould mold core Cutter coordinate system by calculating each point on aim curve, to judge target song
Whether line can carry out accurate machining on shoes mould mold core；
First, the first and last endpoint of aim curve is denoted as (x0, y0, z0), (x1, y1, z1)；Any sampled point is denoted as on curve
(x, y, z)；
If thenIt then can be determined that the curve is boundary curve；
If thenIt then can be determined that all the points on the curve are conllinear；
WhereinS=| (x-x0)*(y1-y)-(x1-x0)*(y1-y0) |, ∈ is given
Error 10-4；
(4) determination of cutter path：
3.1 due to center cutter point geometric locus be aim curve equidistant curve,
The then geometric locus P of center cutter0(t) it is functional relation between tool radius and aim curve：
Po(t)=P (t)+δ n (t) * r
Wherein, p (t)=(x (t), y (t), z (t)) is the parametric form of aim curve, parameter t ∈ [0,1]；R is cutter
Radius；The unit normal vector of aim curve(along Y-axis cut type) or
(cutting type along X-axis)；
If 3.2 each cutting points are discrete point, for the circular arc after broken line or discretization, spline curve, curve is equal
It is expressed as broken line, therefore the calculating of unit normal direction is also discrete, then determines cutter path in the following manner：
Assuming that there is m+1 point P on broken linei=(xi, yi, zi), i=0 ..., m remember P-1=P0, Pm+1=Pm.For point
PiThe normal vector n at placei, calculate first(cutting type along Y-axis)
Or(cutting type along X-axis), then has
Wherein | | | | it is vector field homoemorphism operation；
(5) since blade and shoes mould mold core edge are tangent, and the extended line of blade and aim curve is tangent, by gauge
Calculation obtains the initial position of blade cut --- i.e. the initial position of blade center；
Or
Wherein p0To enter point of contact, r is the radius of blade, t0=(tx, ty, tz) it is p0The unit tangent vector component at place, wherein
Unit tangent vector is directed toward outside shoes mould mold core, has t for broken line0·(p1-p0) ＜ 0； 2 β of l=h cos；H=R cos β are the critical die thickness for calculating center cutter position, and h is shoes mould mold core
Actual (real) thickness, β are point p0Locate normal vector n0With the angle of vectorial (0,0,1), sine can calculate as follows with cosine：If sin β ＜ ∈, wherein error threshold ∈=10-4, then remember R=∞；If
Sin β ＜ ∈, then remember
By above step, first determines the centre coordinate of the shoes mould mold core on fixture, input in numerical control cutting bed；It determines again
The Cutting trajectory and point of penetration of cutter can be completed to cut with a knife, and the different shoes molding of each keel radian is made, and makes
With in original engraving machine manufacturing process, needing to decompose cutting-in, feeding, width etc. one by one cutting, need working hour longer；And it adopts
After the present apparatus, the corresponding shoes mould mold core of each keel can be completed once, and process velocity improves more times.
In addition as shown in Figure 9, Figure 10, in order to preferably cut the groove of sole, a kind of tool is additionally provided in the present invention
There is the cutting apparatus of inclination angle fixture, angled tune is arranged in angular adjustment apparatus between the index dial and cross saddle herein
Regulating device, the angle regulator include the first fixed plate, the second fixed plate, ejector apparatus, and the first fixed plate is mounted on ten
On word planker；One end of second fixed plate is rotatably connected with the first fixed plate, the other end pushes second to fix by ejector apparatus
Plate with the tie point of the first fixed plate to rotate opened with certain angle；Index dial is fixed in the first fixed plate, is fixed with second
It spirals then tilts.The ejector apparatus is any one in hydraulic push rod, air pressure push rod, leading screw push rod, is not limited herein
It is fixed.
About the localization method of the fixture with inclination angle, include the following steps：
(1) center point coordinate of fixture is established：
By reference point centered on the line midpoint of positioning screw hole, clamp central point are set to (w, h) two-by-two on fixture,
It is then w along the directions reference axis y or x distance along level, vertical direction distance is h；Therefore the center of fixture lifting
Axial coordinate is cut into P along y-axisc=(0, ω ,-h)；It is cut into P along X-axisc=(ω, 0 ,-h)；
(2) by spin matrix by the center point coordinate in step (1) switch to horizontal plane coordinate input diced system into
Row cutting：
Setting clamp is θ with the angle of inclination of index dial, then any point P=(x, y, z) is obtained after rotation on shoes mould mold core
The position arrived is P '=Pc+M(P-Pc)T, wherein M is spin matrix；
When being cut along y-axis, haveWhen being cut along X-axis, have：
By the above localization method, the fixture at inclination angle is changed into aclinal；Then it is carried out according to general cutting way
Cutting.
Further：Saw blade cover is set outside the saw blade.While protecting saw blade, chip is avoided to splash winding.
Further：Cutting fluid nozzle is set on the saw blade cover.Cutting process is cooled down and is cut with flushing iron,
Viscous knife is avoided, improves the service life of blade, while the surface quality of cutting can be improved.
Further：Protective cover is set outside the complete machine.Further protect the safety of operating personnel.
In addition in the present invention, the concrete model and material of saw blade do not limit herein, according to the shoes of actual processing
The demand of mould is set, and can be that other hard alloy or PCBN blades are welded on the cutting edge of saw blade to improve saw blade
Service life or other open up the structures such as dregs guiding groove in saw blade itself and do not limit herein.
The programming of numerical control does not limit herein, according to built in the progress of the demand of real cost of production and client.
Include the mode cut in the case that positioning disk has angle of inclination, Ben Qie in this cutting method
Segmentation method is unrestricted, more optimizes cutting process.
Embodiment one
As described in Fig. 1-10, the sole of the shape, the manufacture of mold core, entire sole keel manufacture can use
This equipment is cut, and compared to engraving machining, this equipment more saves working hour, improves processing efficiency.
Embodiment two
As described in Fig. 5-11, the sole of the shape, the manufacture of mold core can use the keel 101 of heel portions
This equipment is cut, and then the second keel 101-1 of forefoot part is manufactured by engraving machine, and such setting will be saved more
Working hour improves processing efficiency.
Embodiment three
As described in Fig. 5-10, Figure 12, the symmetrical keel of left and right radian, the machining sketch chart of corresponding shoes mould, saw blade institute
The path walked is drawn by dotted line, and a knife terminates.
Example IV
As described in Fig. 5-10, Figure 13, the symmetrical keel of arc or so radian, the machining sketch chart of corresponding shoes mould, annular saw
The path that piece is walked is to complete to cut for two knives herein drawn by dotted line；In this figure, vertical dotted line position is point of cutting twice
Boundary's point, cutting-in twice differ.
Embodiment five
As described in Figure 14, rectangle corresponds to shoes mould side view, the corresponding cutter of circle, and cutter enters point of contact and meets blade edge and mold
Intersection, meanwhile, blade and the extended line of incision track are tangent.
Above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that technical staff is made in the essential scope of the present invention should also belong to the protection of the present invention
Range.
Claims (9)
1. a kind of shoes mould mold core numerical control cutting machine；It is characterized in that：Include the lathe bed being made of pedestal and holder,
Processing platform is set on the pedestal, stand is set in the side of processing platform, numerical control operating case is arranged in the other side；
The processing platform includes cross saddle, index dial and fixture；
The cross saddle lower part is connect with pedestal, and the cross saddle top is connected with index dial, and the fixture is fixed on point
On scale, two positioning screw holes are provided on fixture, two positioning screw holes are corresponding with two location holes on shoes mould mold core respectively；
Elevating mechanism is set on holder, and the machining spindle for being parallel to processing platform is fixed on elevating mechanism, the machining spindle
On saw blade is installed.
2. shoes mould mold core numerical control cutting machine according to claim 1, it is characterised in that：Saw blade cover is set outside the saw blade.
3. shoes mould mold core numerical control cutting machine according to claim 2, it is characterised in that：Cutting fluid is set on the saw blade cover
Nozzle.
4. shoes mould mold core numerical control cutting machine according to claim 3, it is characterised in that：Protective cover is set outside the complete machine.
5. shoes mould mold core numerical control cutting machine according to claim 4, it is characterised in that：The fixture is magnechuck, electricity
Two anchor points are provided on magnetic-disc, two anchor points are corresponding with the location hole on shoes mould mold core respectively.
6. shoes mould mold core numerical control cutting machine according to claim 5, it is characterised in that：The index dial and cross saddle it
Between be provided with angle regulator, the angle regulator includes the first fixed plate, the second fixed plate, ejector apparatus, first
Fixed plate is mounted on cross saddle；One end of second fixed plate is rotatably connected with the first fixed plate, the other end is filled by ejection
It sets and pushes the second fixed plate to rotate opened with certain angle with the tie point of the first fixed plate；Index dial is fixed on the first fixed plate
On, it is fixed with second and spirals then tilt.
7. shoes mould mold core numerical control cutting machine according to claim 6, it is characterised in that：The ejector apparatus is hydraulic thrust
Any one in bar, air pressure push rod, leading screw push rod.
8. the cutting working method of the shoes mould mold core numerical control cutting machine according to claim 1-5 any one, feature exist
In：Specifically comprise the following steps：
(1) clamping fixture for correcting position so that two positioning screw hole circle center line connectings on fixture are parallel with mechanical Y-axis；
(2) pilot pin of shoes mould mold core to be cut is placed in location hole；Establish shoes mould mold core Cutter coordinate system, correction shoe mould mold core
Position；
Due to being all provided with circular locating openings on shoes mould mold core to be processed and fixture, in two circular locating openings lines
Heart point is coordinate origin；The central coordinate of circle of two circular locating openings is denoted as respectively on shoes mould to be processed：(x0, y0, z0), (x1, y1,
z1)；
Then the coordinate origin coordinate where shoes mould mold core to be processed is denoted as：
zc=0；
For any point (x, y, z) on shoes mould mold core to be processed, the new coordinate under shoes mould mold core Cutter coordinate system is：
X '=(x-xc)cosα-(y-yc)sinα
Y '=(x-xc)sinα+(y-yc)cosα
Z '=z
Wherein,
(3) whether conllinear in shoes mould mold core Cutter coordinate system by calculating each point on aim curve, to judge that aim curve is
It is no to carry out accurate machining on shoes mould mold core；
First, the first and last endpoint of aim curve is denoted as (x0, y0, z0), (x1, y1, z1)；On curve any sampled point be denoted as (x,
Y, z)；
If thenIt then can be determined that the curve is boundary curve；
If thenIt then can be determined that all the points on the curve are conllinear；
WhereinS=| (x-x0)*(y1-y)-(x1-x0)*(y1-y0) |, ∈ is given error
10-4；
(4) determination of cutter path：
3.1 due to center cutter point geometric locus be aim curve equidistant curve,
The then geometric locus P of center cutter0(t) it is functional relation between tool radius and aim curve：
Po(t)=P (t)+δ n (t) * r
Wherein, P (t)=(x (t), y (t), z (t)) is the parametric form of aim curve, parameter t ∈ [0,1]；R is tool radius；
The unit normal vector of aim curve(along Y-axis cut type) or
(cutting type along X-axis)；
If 3.2 each cutting points are discrete point, for the circular arc after broken line or discretization, spline curve, curve indicates
Calculating for broken line, therefore unit normal direction is also discrete, then determines cutter path in the following manner：
Assuming that there is m+1 point P on broken linei=(xi, yi, zi), i=0 ..., m remember P-1=P0, Pm+1=Pm.For point PiPlace
Normal vector ni, calculate first(along Y-axis cut type) or(cutting type along X-axis),
Then haveWherein | | | | it is vector field homoemorphism operation；
(5) since blade and shoes mould mold core edge are tangent, and the extended line of blade and aim curve is tangent, is calculated by vector
To the initial position of blade cut --- i.e. the initial position of blade center；
Or
Wherein p0To enter point of contact, r is the radius of blade, t0=(tx, ty, tz) it is p0The unit tangent vector component at place, wherein unit
Tangent vector is directed toward outside shoes mould mold core, has t for broken line0·(p1-p0) ＜ 0； l
=hcos2 β；H=Rcos β are the critical die thickness for calculating center cutter position, and h is the actual (real) thickness of shoes mould mold core, and β is a little
p0Locate normal vector n0With the angle of vectorial (0,0,1), sine can calculate as follows with cosine：If sin β ＜ ∈, wherein error threshold ∈=10-4, then remember R=∞；If
Sin β ＜ ∈, then remember
9. the fixture localization method of shoes mould mold core numerical control cutting machine according to claim 5 or 6, it is characterised in that：Including
Following steps：
(1) center point coordinate of fixture is established：
By reference point centered on the line midpoint of positioning screw hole, clamp central point are set to (w, h) two-by-two on fixture,
It is then w along the directions reference axis y or x distance along level, vertical direction distance is h；Therefore the central shaft of fixture lifting is sat
Mark is cut into P along y-axisc=(0, w ,-h)；It is cut into P along X-axisc=(w, 0 ,-h)；
(2) the coordinate input diced system that the center point coordinate in step (1) is switched to horizontal plane by spin matrix is cut
It cuts：
Setting clamp is θ with the angle of inclination of index dial, then any point P=(x, y, z) is obtained after rotation on shoes mould mold core
Position is P '=Pc+M(P-Pc)T, wherein M is spin matrix；
When being cut along y-axis, haveWhen being cut along X-axis, have：
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| CN110253078A (en) * | 2019-06-13 | 2019-09-20 | 广东技术师范大学天河学院 | A kind of intelligence hi-precision cutting machine |
| CN113246407A (en) * | 2021-06-30 | 2021-08-13 | 广东鸿兴精密科技股份有限公司 | Full-automatic five-axis cutting machine |
| CN113967843A (en) * | 2021-08-24 | 2022-01-25 | 富士优你科技有限公司 | CNC single-end shoe last carving machine |
| CN114043011A (en) * | 2021-12-27 | 2022-02-15 | 爱派尔(常州)数控科技有限公司 | Machine tool for machining turbine blade |
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