CN101758131A - Novel numerical control rolling taping machine - Google Patents
Novel numerical control rolling taping machine Download PDFInfo
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- CN101758131A CN101758131A CN200910181770A CN200910181770A CN101758131A CN 101758131 A CN101758131 A CN 101758131A CN 200910181770 A CN200910181770 A CN 200910181770A CN 200910181770 A CN200910181770 A CN 200910181770A CN 101758131 A CN101758131 A CN 101758131A
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Abstract
The invention discloses a novel numerical control rolling taping machine which together finishes the taping process of the inner and outer plate flanges of a vehicle body covering piece through the triaxial linkage of a worktable and the shape following rotation of a rolling roller power head, comprises the basic principle and the detailed structure of a numerical control rolling machine tool and complementally explains the process characteristic and the basic process of the numerical control rolling machine tool. The invention aims at simplifying the taping process and the taping mould design of the flanges of the traditional vehicle body covering piece, improving the taping efficiency and lowering the taping cost. The machine tool only needs to carry out numerical control programming for different taping paths, can carry out taping for the inner and outer plates of various vehicle body covering pieces in multiple vehicle types without needing a special tool except for matching with a taping mould with a corresponding structure according to the shapes of different vehicle body covering pieces and can simultaneously finish a plurality of technical processes of loading and unloading, seal coating, taping, welding and the like by adopting one numerical control rolling machine tool, the automation of equipment and the flexibility degree of the taping process are improved, and the equipment can be very convenient to popularize and apply due to the universality of a numerical control system.
Description
Technical field
The present invention relates to a kind of structural design and process feature description thereof of novel numerical control rolling taping machine.
Background technology
Bound edge is a kind of common processing method that connects automobile body components outside plate and inner panel, is the important assembly process of car door class assembly (Ru Men, lid etc.).Traditional Wrapping method mainly contains manual bound edge, the special-purpose taping machine bound edge of hydraulic pressure and mold pressing bound edge.Manual bound edge production efficiency is low, and product appearance is of poor quality, and labour intensity is big, and the noise height now is eliminated.The special-purpose taping machine bound edge of hydraulic pressure because pre-flange and flange pressing are carried out in segmentation, causes the pressing of segmentation joint of poor quality, and full-sized car factory and the exigent automobile works of presentation quality are without the method bound edge now.Though the mold pressing bound edge can obtain good bound edge quality and outward appearance, investment is big, and the cost height is usually used in the production in enormous quantities that product quality has relatively high expectations, the requirement of the personalized and small lot batch manufacture of incompatibility Hyundai Motor.Also occur a kind of robot that adopts in recent years and driven the new technology that rolling mechanism carries out bound edge, robot nip drum bound edge can be at difform part by the corresponding bound edge path of track programming planning, has very high manufacturing flexibility, this technology both had been applicable to the product development advanced development, also was applicable to production in enormous quantities.At robot edge-coating technology and equipment, correlative study mechanism has applied for some patents both at home and abroad.The serial machine people moves flexibly, than being easier to realize the bound edge motion, therefore up to now the robot edge-coating technology adopt mostly be the serial machine people greatly, but the structure of its beam type has reduced the rigidity of equipment, thereby influence the pressing and forming quality of plate, rough, wrinkling etc. as periphery.On the other hand, serial machine people's articulated structure, error transfer and accumulation have been caused, thereby path accuracy is lower, also have a few studies personnel to propose to adopt parallel robot at present as the process imagine of bound edge workbench with the realization robot edge-coating, but the parallel robot working space is less, estimates may be subjected to certain restriction in real work.
The present invention is a kind of flexible numerical rolling pressing edge covering system that is used for rolling pressing edge covering, has flexible advanced processing technology and equipment for the manufacturing of lightweight vehicle body provides.The numerical control rolling pressing edge covering system can be towards auto industry manufacturing enterprise, the key technology equipment of making as the new model Development and Trial with for the lightweight car door.
Summary of the invention:
The present invention disclose a kind of by the numerical control rolling taping machine workbench three-shaft linkage and the conformal of roll extrusion roller unit head rotate the wrapping process of finishing body outer skin inner and outer plates flange jointly, comprise the process of numerical control rolling pressing edge covering and the structural design of numerical control rolling taping machine.Purpose is to simplify traditional body outer skin flange wrapping process and wrapping mold design, improves bound edge efficient, reduces the bound edge cost.
One, flexible numerical rolling pressing edge covering device structure design
Numerical control rolling pressing edge covering equipment is made up of two big subdivisions: three-dimensional numerical control table, NC table, numerical control scale-division idler wheel mechanism.Its architectural feature comprises few component parts as described below:
1, bed piece is a L type structure, and wherein horizontal lathe bed has been installed Y to motion guide rail on partly, is used to install the Y-axis motion workbench, and the X-axis motion workbench is installed on the Y-axis table slide; Upright lathe bed partly is equipped with Z to motion guide rail, is used to install Z axle motion workbench.
2, Y-axis motion workbench, this workbench is installed on one's body the horizontal beds, connects with ball-screw by transmission nut, under stepper motor or driven by servomotor, carry out Y to rectilinear motion.
3, X-axis motion workbench, this workbench are installed on the Y-axis table slide, connect with ball-screw by transmission nut, under stepper motor or driven by servomotor, carry out X to rectilinear motion.
4, Z axle motion workbench, this workbench is installed in Z on motion guide rail, connects with ball-screw by transmission nut, under stepper motor or driven by servomotor, carry out Z to rectilinear motion.
5, numerical control scale-division device, this device connect firmly on Z axle motion workbench, with Z axle motion workbench carry out Z to rectilinear motion.
6, bound edge loose tool designs according to different bound edge part shapes, is used for location and installation bound edge part, and this mould connects firmly on the X-axis motion workbench, realizes drop shadow curve's plane motion of bound edge profile by the resultant motion of X-axis workbench and Y-axis workbench.
7, bound edge idler wheel mechanism, this mechanism is by the output shaft coupling of shaft coupling mode and numerical control scale-division device, realize Z rectilinear motion up and down by Z axle motion workbench, the three-D profile of this motion and the synthetic bound edge of bound edge loose tool plane motion, and realize that by the numerical control scale-division mode roller rotates with respect to the conformal of bound edge curve, annotates: this conformal motion guarantees that roller remains with the bound edge track and does tangent motion.
8, distributed clamp mechanism, a plurality of air pressure or hydraulic clamp are uniform as far as possible along the bound edge profile, and clamping work pieces guarantees that loosening or metaboly do not appear in workpiece in the roll extrusion process.
The numerical control rolling lathe that this invention is described is realized the bound edge processing of body outer skin by four-axle linked mode.
The configuration of three-dimensional numerical control table, NC table and general three coordinate numerical control milling machine have similarity, but do not comprise the milling power head unit of milling machine, remove the milling unit head on the common vertical numerical control milling machine, and NC dividing head is installed on the Z axle slide unit.The bound edge loose tool is fixed on the horizontal movement workbench, and the X by horizontal table realizes bound edge track drop shadow curve profile to synthesizing the arbitrary plane curvilinear motion with Y to motion; The Z of main shaft drives platform synthesizes to motion and plane curve movement then can realize any three-dimensional curve contour motion, thereby can guarantee that idler wheel mechanism is along required part outline curvilinear motion.
Idler wheel mechanism is installed in the NC dividing head, direction by numerical control program control roller, roller is remained with the bound edge track do tangent motion, for order realizes pre-bound edge and bound edge process, two rollers have been installed on the idler wheel mechanism, and pre-bound edge roller is realized the pre-bound edge of 45～60 degree of part, after one week of circulation, the bound edge roller enters the operating position, realizes the whole bound edge of part;
In the roll extrusion process, make a concession the interference of eliminating the bound edge motion by in time unclamping of anchor clamps, treat that roller passes through to clamp again behind the clamping point, the layout of anchor clamps can keep suitable distribution clamping mode according to the contour shape free adjustment of bound edge part.
The material loading of part and discharge operation are finished by the fuel manipulator crane structure, before the part bound edge, must be stacked at assigned address on request, vacuum cup on the fuel manipulator crane structure is inhaled part from stowed location and is carried to the assigned address of bound edge loose tool, after overcaster is finished, part is inhaled to carry to discharge position again and stacked.
The numerical control scale-division idler wheel mechanism is cover rigidity or an elasticity roller mechanism to be installed on one can be undertaken on the unit head of controlled rotation by NC dividing head, the Z that the numerical control scale-division idler wheel mechanism is installed on the three-dimensional numerical control table, NC table also can carry out the reciprocating motion of vertical direction with driving platform on the main shaft drives platform, roller must be all the time in the mode of cylindrical rolling cut along being moved by the contour curve of bound edge workpiece, this motion is driven by the numerical control scale-division device and along with the rolling cut direction that is changed roller by the contour curve of bound edge workpiece realizes.For preventing that roller from skidding occurring in the roll extrusion process, the numerical control scale-division device possesses auto-lock function, and this function realizes by a worm gearing.
Description of drawings
Fig. 1 is a three-dimensional numerical control table, NC table system schematic;
Fig. 2 is a numerical control scale-division idler wheel mechanism schematic diagram;
Fig. 3 is the numerical control rolling taping machine structural representation;
Fig. 4 is the numerical control rolling taping machine graphics that the bound edge loose tool has been installed.
Fig. 5 is a numerical control rolling pressing edge covering technical process schematic diagram.
Two, the process characteristic explanation of numerical control rolling taping machine bed
Numerical control rolling lathe described in the invention, the characteristics of its wrapping process process implementation part bound edge as described below:
A, will be by bound edge part location and installation on the bound edge loose tool by the vacuum cup on the fuel manipulator crane structure;
B, will be clamped by the bound edge part by distributed clamping device;
C, by the three-shaft linkage of numerical control programming control numerical control rolling taping machine workbench, realize by bound edge part three-dimensional space curve movement locus, guarantee that movement locus satisfies various difform body outer skin bound edge profiles
D, in by bound edge part movement process, the bound edge roller guarantees that bound edge roller cylindrical is in tangent motion state with the part outline all the time with being carried out servo-actuated dividing movement by the track of bound edge part outline.
E, in the bound edge process, when roller motion during near certain clamping point, the clamping device at this place unclamps yielding, guarantee not collide between roller motion and the anchor clamps, roller in the past after, clamping device clamps again.
F, finish behind a numerical control circulation by the processing of the pre-bound edge of bound edge part, roller mechanism just in time is in the starting point of whole bound edge processing this moment, repeats the process of c～e, finishes the whole bound edge of part.
G, shedding mechanism unload part from workbench, finish whole bound edge process.
Native system only needs numerical control programming is carried out in different bound edges path, except the bound edge loose tool according to the supporting corresponding construction of shape of different body outer skins, no longer need special instrument, just can carry out bound edge to all kinds of body outer skin inner and outer plates of multi-vehicle-type, and can adopt a number of units control knurling machine to finish simultaneously that loading and unloading, envelope are coated with, a plurality of technical process such as bound edge, welding, improved the automation of equipment and the flexibility degree of wrapping process, the versatility of digital control system makes the very easily popularization and application of this equipment.
Being characterized as of numerical control wrapping process method: described numerical control bound edge motion is for four-axle linked, wherein the bound edge roller carries out dividing movement by NC dividing head by tangent motion requirement, simultaneously under Z axis driving effect, carry out moving up and down of vertical direction, with the X-axis on plane and the three-dimensional curve of the common synthetic bound edge part outline of Y-axis motion; Be distributed clamping by the bound edge part, the clamping and release action realizes by Programmable Logic Controller.
The material loading of part and discharge operation are finished by the fuel manipulator crane structure, before the part bound edge, must be stacked on request assigned address, vacuum cup on the fuel manipulator crane structure is inhaled part from stowed location and is carried to the assigned address of bound edge loose tool, after overcaster is finished, part is inhaled to carry to discharge position again and stacked.
Three, the specific embodiment
The invention will be further described below in conjunction with specific embodiment, but the present invention is not limited only to following examples.
Select the general car automobile door structure, the inner panel of car door and guide rail, finish connection in advance by the spot welding mode, passing two connection fabrication holes processing in advance by rivet between part endosome behind the assembly welding and the outside plate connects in advance, by feed mechanism it accurately is positioned according on the automobile door structure characteristics design bound edge loose tool then, and on the bound edge workbench a plurality of anchor clamps of reasonable Arrangement, the basic principle of arranging is to make the folder point of car door even as far as possible, avoid part deformation, after parts fixation is finished, carry out the original point position operation of bound edge processing, and setting system's initial point and workpiece origin position, during the coordinate of this two point coordinates input digital control system was provided with, start-up system was carried out the in-circuit emulation in bound edge path, confirm errorless after, finish the bound edge processing of car door as follows:
A, carry out three-shaft linkage, realize being guaranteed that by bound edge part three-dimensional space curve movement locus movement locus satisfies various difform body outer skin bound edge profiles by numerical control programming control numerical control rolling pressing edge covering workbench
B, in by bound edge part movement process, pre-bound edge roller guarantees that with the calibration relative motion of being carried out servo-actuated by the track of bound edge part outline the roller cylindrical is in tangent motion state with the part outline all the time.
C, in the bound edge process, when pre-bound edge roller when the distributed clamping point, the clamping device at this some place unclamps yielding according to the sequential of roller motion, guarantee not collide between roller motion and the anchor clamps, roller in the past after, clamping device clamps again.
D, finish after numerical control circulation by the pre-bound edge processing of bound edge part, in advance be depressed into 30 degree angles by the flanging of bound edge part this moment, and rolling mechanism is got back to part bound edge starting point place simultaneously.
E, rolling mechanism Rotate 180 degree make whole bound edge roller be in the tangent state of contact with part bound edge place.
F, system repeat the technical process from a～d, finish the whole bound edge processing of part.
G, rolling mechanism are got back to system's initial point under programme-control, away from by the bound edge part.
H, shedding mechanism unload part from workbench, finish whole bound edge process.
Above technical process principle is explained and is seen accompanying drawing 5.
Four, the characteristics of scheme
The flexible numerical rolling pressing edge covering system that the present invention proposes only needs numerical control programming is carried out in different bound edges path, except the bound edge loose tool according to the supporting corresponding construction of shape of different body outer skins, no longer need special instrument, just can carry out bound edge to all kinds of body outer skin inner and outer plates of multi-vehicle-type, and can adopt a number of units control knurling machine to finish simultaneously loading and unloading, envelope is coated with, bound edge, a plurality of technical process such as welding, the automation of equipment and the flexibility degree of wrapping process have been improved, the versatility of digital control system makes the very easily popularization and application of this equipment, compare with serial machine people edge-coating system, has the rigidity height, the advantage that the roller motion state is stable, the bound edge quality is guaranteed easily, compare with the parallel robot edge-coating system, has working space advantage big and that expand easily, to the size containment height of bound edge part.
Claims (6)
1. novel numerical control rolling pressing edge covering equipment, its architectural feature comprises few component parts as described below:
1., bed piece is L type structure, wherein horizontal lathe bed has been installed Y to motion guide rail on partly, is used to install the Y-axis motion workbench, and the X-axis motion workbench is installed on the Y-axis table slide; Upright lathe bed partly is equipped with Z to motion guide rail, is used to install Z axle motion workbench.
2., the Y-axis motion workbench, this workbench is installed on one's body the horizontal beds, connects with ball-screw by transmission nut, under stepper motor or driven by servomotor, carry out Y to rectilinear motion.
3., the X-axis motion workbench, this workbench is installed on the Y-axis table slide, connects with ball-screw by transmission nut, under stepper motor or driven by servomotor, carry out X to rectilinear motion.
4., Z axle motion workbench, this workbench is installed in Z on motion guide rail, connects with ball-screw by transmission nut, under stepper motor or driven by servomotor, carry out Z to rectilinear motion.
5., the numerical control scale-division device, this device connects firmly on Z axle motion workbench, with Z axle motion workbench carry out Z to rectilinear motion.
6., the bound edge loose tool, design according to different bound edge part shapes, be used for location and installation bound edge part, this mould connects firmly on the X-axis motion workbench, the resultant motion by X-axis workbench and Y-axis workbench realizes drop shadow curve's plane motion of bound edge profile.
7., bound edge idler wheel mechanism, this mechanism is by the output shaft coupling of shaft coupling mode and numerical control scale-division device, realize Z rectilinear motion up and down by Z axle motion workbench, the three-D profile of this motion and the synthetic bound edge of bound edge loose tool plane motion, and realize that by the numerical control scale-division mode roller rotates with respect to the conformal of bound edge curve, annotates: this conformal motion guarantees that roller remains with the bound edge track and does tangent motion.
8., distributed clamp mechanism, a plurality of air pressure or hydraulic clamp are uniform as far as possible along the bound edge profile, and clamping work pieces guarantees that loosening or metaboly do not appear in workpiece in the roll extrusion process.
The numerical control rolling lathe that this invention is described is realized the bound edge processing of body outer skin by four-axle linked mode.
2. numerical control edge-coating system according to claim 1 is characterized as: the milling unit head on the common vertical numerical control milling machine is removed, NC dividing head is installed on the Z axle slide unit, idler wheel mechanism is installed in the NC dividing head, direction by numerical control program control roller, roller is remained with the bound edge track do tangent motion, for order realizes pre-bound edge and bound edge process, two rollers have been installed on the idler wheel mechanism, pre-bound edge roller is realized the pre-bound edge of 45～60 degree of part, after one week of circulation, the bound edge roller enters the operating position, realizes the whole bound edge of part; The bound edge loose tool is fixed on the horizontal movement workbench, carries out the plane motion under the programme-control, realizes track drop shadow curve profile; In the roll extrusion process, make a concession the interference of eliminating the bound edge motion by in time unclamping of anchor clamps, treat that roller passes through to clamp again behind the clamping point, the layout of anchor clamps can keep suitable distribution clamping mode according to the contour shape free adjustment of bound edge part.
3. the material loading of part and discharge operation are finished by the fuel manipulator crane structure, before the part bound edge, must be stacked at assigned address on request, vacuum cup on the fuel manipulator crane structure is inhaled part from stowed location and is carried to the assigned address of bound edge loose tool, after overcaster is finished, part is inhaled to carry to discharge position again and stacked.
4. for preventing that roller from skidding occurring in the roll extrusion process, the numerical control scale-division device possesses auto-lock function, and this function realizes by a worm gearing.
5. the process of numerical control edge-coating system according to claim 1 is characterized as: described numerical control bound edge motion is for four-axle linked, wherein the bound edge roller carries out dividing movement by NC dividing head by tangent motion requirement, simultaneously under Z axle driving effect, carry out moving up and down of vertical direction, with the X-axis on plane and the three-dimensional curve of the common synthetic bound edge part outline of Y-axis motion; By the bound edge part is distributed clamping, and the clamping and release action of anchor clamps can realize by Programmable Logic Controller.
6. should invent described numerical control rolling lathe, the feature of its wrapping process process as described below realizes the part bound edge:
A, will be on the bound edge loose tool by the vacuum cup on the fuel manipulator crane structure by bound edge part location and installation;
B, will be clamped by the bound edge part by distributed clamping device;
C, by the three-shaft linkage of numerical control programming control numerical control rolling taping machine workbench, realize being guaranteed that by bound edge part three-dimensional space curve movement locus movement locus satisfies various difform body outer skin bound edge profiles
D, in by bound edge part movement process, the bound edge roller is with the dividing movement that is carried out servo-actuated by the track of bound edge part outline, guarantees that bound edge roller cylindrical is in tangent motion state with the part outline all the time.
E, in the bound edge process, when roller motion during near certain clamping point, the clamping device at this place unclamps yielding, guarantee not collide between roller motion and the anchor clamps, roller in the past after, clamping device clamps again.
F, finish after numerical control circulation by the pre-bound edge processing of bound edge part, roller mechanism just in time is in the starting point of whole bound edge processing this moment, repeats the process of c～e, finishes the whole bound edge of part.
G, shedding mechanism unload part from workbench, finish whole bound edge process.
This lathe only needs numerical control programming is carried out in different bound edges path, outside the bound edge loose tool according to the supporting corresponding construction of shape of different body outer skins, do not need special instrument, just can carry out bound edge to all kinds of body outer skin inner and outer plates of multi-vehicle-type, and can adopt a numerical control rolling lathe to finish simultaneously that loading and unloading, envelope are coated with, a plurality of technical process such as bound edge, welding, improved the automation of equipment and the flexibility degree of wrapping process, the versatility of digital control system makes the popularization and application very easily of this equipment.
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| CN200910181770A CN101758131A (en) | 2009-07-23 | 2009-07-23 | Novel numerical control rolling taping machine |
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| CN200910181770A CN101758131A (en) | 2009-07-23 | 2009-07-23 | Novel numerical control rolling taping machine |
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| CN101791646A (en) * | 2010-04-15 | 2010-08-04 | 上海交通大学 | Numerical control rolling pressing edge covering method used for automobile body components |
| CN102059294A (en) * | 2010-07-12 | 2011-05-18 | 合肥锻压机床有限公司 | Vehicle door hemming hydraulic press |
| CN102290541A (en) * | 2011-07-13 | 2011-12-21 | 无锡市金杨新型电源有限公司 | Lithium ion battery cap covering machine |
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| CN102059294A (en) * | 2010-07-12 | 2011-05-18 | 合肥锻压机床有限公司 | Vehicle door hemming hydraulic press |
| CN102528463A (en) * | 2010-12-29 | 2012-07-04 | 东莞市蓝冠机械设备有限公司 | Wave-resistant plate covering machine |
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| CN102290541B (en) * | 2011-07-13 | 2014-12-24 | 无锡市金杨新型电源有限公司 | Lithium ion battery cap covering machine |
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