CN204868868U - Novel series -parallel connection five -axle linkage intelligence welded platform - Google Patents

Novel series -parallel connection five -axle linkage intelligence welded platform Download PDF

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Publication number
CN204868868U
CN204868868U CN201520577544.4U CN201520577544U CN204868868U CN 204868868 U CN204868868 U CN 204868868U CN 201520577544 U CN201520577544 U CN 201520577544U CN 204868868 U CN204868868 U CN 204868868U
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China
Prior art keywords
side chain
linear electric
platform
welding
mover
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Expired - Fee Related
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CN201520577544.4U
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Chinese (zh)
Inventor
康清格
张自强
李润钿
赵永杰
龚江华
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SHANTOU INSTITUTE FOR LIGHT INDUSTRIAL EQUIPMENT RESEARCH
Shantou University
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SHANTOU INSTITUTE FOR LIGHT INDUSTRIAL EQUIPMENT RESEARCH
Shantou University
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Abstract

The embodiment of the utility model discloses novel series -parallel connection five -axle linkage intelligence welded platform, unit, parallelly connected motion unit, terminal motion unit, vision unit, workstation move including allocating the platform, establishing ties, establish ties motion unit slidable mounting in the bench allocates, parallelly connected motion unit is installed on the linear electric motor fixed plate of motion unit of establishing ties, terminal motion unit passes through the side chain and rotates with two active cells of the linear electric motor of parallelly connected motion unit respectively and be connected, the vision unit is used for acquireing welding seam image data. The utility model discloses the configuration novelty, simple structure is compact, and the modularization degree is high, makes, installs simply, and posture adjustment is nimble, and degree of automation is high, has five -axle linkage and soldering joint tracking welding function, can accomplish five automatic high accuracy welding in a clamping, and the specially adapted has complicated curved surface, middle -size and small -size part welding jobs.

Description

A kind of New-type mixed-coupled five-axle linkage Intelligent welding platform
Technical field
The utility model relates to industrial welding technical field, particularly relates to a kind of New-type mixed-coupled five-axle linkage Intelligent welding platform with machine vision.
Background technology
The height of a national solder technology development level is an important symbol of its industry and modernization of science technology development level, be welded on during modern industry is produced and have a very important role, nearly all product, from the huge steamer of hundreds of thousands tonne to the miniature electronic components and parts less than 1 gram, rely on solder technology all to some extent in process of production.
At present, domestic and international welding equipment mainly contains joint welding robot, rectangular co-ordinate welding robot etc.Joint welding robot, because working space is large, track is widely used flexibly.As " a kind of mechanical arm structures of five axle welding robots " that the patent No. is 201420360561.8, this mechanical arm mechanism is articulated type, by rotation fuselage, rotate large arm, rotate forearm to form with the wrist joint and end effector with 3 frees degree, this multi-freedom joint welding robot working space is large, pose adjustment has flexibility and the flexibility of height, but the cantilever design that this articulated type welding robot is tediously long, and all motor is arranged on joint, mechanical arm is made to seem heavy, there is rotary inertia large, poor rigidity and accumulated error large etc. not enough, load capacity and the dynamic property of mechanism are poor, be difficult to meet high-speed, high precision requirement day by day.Relative to joint welding robot, it is simple that rectangular co-ordinate welding robot has structure, and rigidity is comparatively large, and load capacity is comparatively large, the advantages such as repetitive positioning accuracy is higher, and cost is lower.As " automatic solder robot " that the patent No. is 200910310204.4, it mainly comprises the module in X, Y, Z tri-directions, can realize the welding of Three Degree Of Freedom, and the diversity of surface of the work and complexity make the use of this welding robot be subject to certain restrictions.Multiple degrees of freedom rectangular co-ordinate welding robot, as " welding robot based on rectangular coordinate system " that the patent No. is 201310469417.8, although have the function of X, Y, Z, U, W axle five-axle linkage, but due to some itself intrinsic defect of serial mechanism, as accumulation of error effect, control accuracy is lower, load driving force is limited, thus limits the range of application of multiple degrees of freedom serial mechanism jig.
Compared to serial mechanism, parallel institution rigidity is high, and control accuracy is high, easily realizes High-speed Control, and its deficiency is that working range is less, and flexibility is relative with flexibility poor.And hybrid mechanism has advantages such as load capacity is strong, high-speed, high precision, control decoupling zero, working space is comparatively large, movement inertia is low, compensate for the shortcoming of series and parallel connections mechanism, and illustrate potential wide application prospect.In existing series-parallel connection welding robot, as " a kind of double parallel-connection superposition multifunctional robot " that the patent No. is 200910010905.6, its parallel institution is driven by two linear electric motors, the mover of each linear electric motors can not move on the stator of other linear electric motors, the mover stroke of linear electric motors is diminished, thus make the working space of parallel institution relatively little, and welding gun is arranged on the universal working head of motion platform, although universal working head can realize the motion of three degree of freedom, but the manufacture of universal working head is more difficult, the structure of universal working head itself is very complicated, other executive component is installed in the above again and has certain difficulty.And the workbench of this robot is stationary work-table, all attitudes can be caused all to concentrate on universal working head, due to error accumulation effect, robot operationally, may cause initializing, locating inaccurate and do not reach expected effect.
In addition above traditional welding robot is when welding, often do not reach expected effect owing to locating inaccurate, in order to improve the intellectuality of welding robot, automatization level and welding precision, the welding robot with visual performance receives the concern of many scholars.Existing be furnished with in the welding robot of visual performance, as " intelligent robot welding device using large-scale workpiece " that the patent No. is 200710179406.0, this device uses intelligent vision control technology, improve welding quality and efficiency, but this device has the kinematic axis of 9 series connection, make to manufacture, control more difficult, and serial mechanism has the defects such as accumulation of error effect, control accuracy is lower, load driving force is limited.So how to develop, flexibility is good, precision is high, reliability is high, cost is lower, the simple welding robot of making and installation, becomes the major issue of many scholar's research.
Summary of the invention
The utility model embodiment technical problem to be solved is, provides a kind of New-type mixed-coupled five-axle linkage Intelligent welding platform.Can solve that weld load ability in prior art, precision are low, the problem of complex structure, installation and debugging difficulty, cost intensive.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of New-type mixed-coupled five-axle linkage Intelligent welding platform, comprises fixed platform, serial kinematic unit, parallel kinematic unit, end movement unit, visual unit, workbench;
Described serial kinematic unit comprises the linear electric motors fixed head sliding and be arranged on described fixed platform;
Described parallel kinematic unit comprises the two mover linear electric motors, the first side chain, the second side chain that are installed on below described linear electric motors fixed head, first mover of described first side chain head end and described pair of mover linear electric motors is rotationally connected, and the second mover of described second side chain head end and described pair of mover linear electric motors is rotationally connected;
Described end movement unit comprises moving platform, servomotor, welding gun, described moving platform and described first side chain, the second branch terminals are rotationally connected, described servomotor is installed on below described moving platform, described welding gun passes through welding gun support installing on the output of described servomotor, described visual unit is installed on described welding gun support, obtains the weld information of described welding gun;
Described workbench is rotary table, is placed in below described moving platform.
Further, described fixed platform comprises frame and is set in parallel in the line slideway on described frame both sides respectively, and described linear electric motors fixed head is slidably arranged on described line slideway.
Further, described first side chain, the second side chain include connecting plate, connecting rod, and described connecting plate is fixedly installed on below described first mover, the second mover respectively, and described connecting rod two ends are articulated with below described connecting plate and above described moving platform respectively.
Further, the identical length etc. of the connecting rod of described first side chain, the second side chain, and the connecting rod forming same side chain is parallel to each other.
Further, described serial kinematic unit coordinates ball wire bar pair to drive by linear electric motors, cylinder or electric rotating machine.
Further, described visual unit comprises laser vision sensor, image pick-up card and industrial control computer, and described industrial control computer obtains the weld image data of described laser vision sensor by described image pick-up card.
Implement the utility model embodiment, there is following beneficial effect: the utility model drives parallelogram parallel institution can realize the motion of two frees degree by two mover linear electric motors, make this platform configuration novel, structure is simple, control accuracy is high, and parallel institution basis of formation gantry, improve complete machine rigidity.On parallel motion platform, additional single-degree-of-freedom vertically moves cascaded structure, on moving platform, adds single-degree-of-freedom swing mechanism, be equipped with the rotary motion of workbench, each axle can cooperatively interact the coordinated movement of various economic factors, pose adjustment is flexible, five-shaft interlock function can be realized, and each shaft movement mechanism degree of modularity is high, installation and debugging are convenient.Swing mechanism is furnished with machine vision, can perception welding process Work position information and appearance of weld information, realize the high precision position of welding gun in space by executing agency to regulate and rotation attitude adjustment, the high accuracy weld joint tracking welding of workpiece 5 can be completed, automaticity is high, is specially adapted to complex-curved shape, middle-size and small-size weld parts operation.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of embodiment 1;
Fig. 2 is embodiment 2 structural representation;
Fig. 3 is embodiment 3 structural representation;
Fig. 4 is embodiment 4 structural representation;
Fig. 5 is embodiment 5 structural representation;
Fig. 6 is embodiment 6 structural representation.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to the overall structure schematic diagram of the embodiment 1 shown in Fig. 1.
The one New-type mixed-coupled five-axle linkage Intelligent welding platform of the utility model embodiment, comprises fixed platform, serial kinematic unit, parallel kinematic unit, end movement unit, visual unit, workbench.
Fixed platform comprises frame 1 and line slideway 2, and frame 1 is frame-type, is built by high-quality aluminum alloy section bar, and line slideway 2 is a pair and is installed on abreast in frame 1.
Serial kinematic unit comprises slide block 3, linear electric motors fixed head 4, and linear electric motors fixed head 4 two ends are slidably mounted on line slideway 2 respectively by slide block 3.The driving of serial kinematic unit is driven by linear motor direct drive, cylinder or ball wire bar pair, can realize vertically moving of this platform, not shown, but the present embodiment is not limited at this.
Parallel kinematic unit comprises two mover linear electric motors 5, first side chain, the second side chain, two mover linear electric motors 5 are fixedly installed in below linear electric motors fixed head 4, the first mover 52, second mover 53 that two mover linear electric motors 5 mainly comprise stator 51 and are arranged on stator 51, first mover 52 is connected with moving platform 9 by the first side chain, and the second mover 53 is connected with moving platform 9 by the second side chain.
First side chain, the second side chain include connecting plate, connecting rod, connecting plate 6,61 is fixedly installed on below described first mover 52, second mover 53 respectively, each side chain connecting rod 8 length is equal, and each side chain connecting rod quantity is at least two, the connecting rod forming same side chain is parallel to each other, and connecting rod 8 two ends are articulated with below connecting plate 6,61 and above moving platform 9 respectively.
End movement unit comprises moving platform 9, servomotor support 10, servomotor 11, welding gun support 12, welding gun 13, servomotor support 10 is arranged on below moving platform, servomotor 11 is arranged on servomotor support 10, welding gun support 12 is arranged on servomotor 11 axle by deceleration device, welding gun 13 is arranged on welding gun support 12, and welding gun 13 can do pivot angle motion under the driving of servomotor 11.
Visual unit can perception welding process Work position information and appearance of weld information, realize the high precision position of welding gun 13 in space by executing agency to regulate and rotation attitude adjustment, high precision tracking welding can be carried out to workpiece, improve welding quality and efficiency.Visual unit comprises laser vision sensor 13, image pick-up card (not shown) and industrial control computer (not shown).Laser vision sensor 14 is arranged on welding gun support 12, and image pick-up card directly assigns on the PCI slot of industrial control computer.Industrial control computer extracts process and the feature of welding process visual information by image pick-up card, realizes the real-time vision measurement and monitoring function of butt welded seam.
Workbench 14 is rotary table, adds the one degree of freedom of this platform.
In the utility model, the head end of connecting rod is identical with the link position of its end on moving platform with the link position of connecting plate, and the connecting rod of each side chain can intersect mixed configuration on the vertical plane.
As the intersection mixed configuration structural representation of connecting rod end on moving platform 9 of Fig. 2 ~ 2 ~ 6 correspondences embodiment illustrated in fig. 6, other structure is described consistent with embodiment 1, and the utility model does not do duplicate explanation at this.
The New-type mixed-coupled five-axle linkage Intelligent welding platform configuration of the utility model embodiment is novel, simple and compact for structure, the degree of modularity is high, manufacture, install simple, pose adjustment is flexible, automaticity is high, use two mover linear electric motors can realize moving platform accurately to control in two frees degree, parallel institution rigidity is high, working range is large, movement inertia is low, be easy to adjustment control, servos control welding gun is used accurately to rotate in another free degree, and coordinate the workbench of the rotation in another free degree, formation has five-axle linkage and weld joint tracking welding function, can in clamped one time, complete the automated high-precision welding of 5, be specially adapted to complex-curved shape, middle-size and small-size weld parts operation.
Above disclosedly be only a kind of preferred embodiment of the utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.

Claims (6)

1. a New-type mixed-coupled five-axle linkage Intelligent welding platform, is characterized in that, comprises fixed platform, serial kinematic unit, parallel kinematic unit, end movement unit, visual unit, workbench;
Described serial kinematic unit comprises the linear electric motors fixed head sliding and be arranged on described fixed platform;
Described parallel kinematic unit comprises the two mover linear electric motors, the first side chain, the second side chain that are installed on below described linear electric motors fixed head, first mover of described first side chain head end and described pair of mover linear electric motors is rotationally connected, and the second mover of described second side chain head end and described pair of mover linear electric motors is rotationally connected;
Described end movement unit comprises moving platform, servomotor, welding gun, described moving platform and described first side chain, the second branch terminals are rotationally connected, described servomotor is installed on below described moving platform, described welding gun passes through welding gun support installing on the output of described servomotor, described visual unit is installed on described welding gun support, obtains the weld information of described welding gun;
Described workbench is rotary table, is placed in below described moving platform.
2. New-type mixed-coupled five-axle linkage Intelligent welding platform according to claim 1, it is characterized in that, described fixed platform comprises frame and is set in parallel in the line slideway on described frame both sides respectively, and described linear electric motors fixed head is slidably arranged on described line slideway.
3. New-type mixed-coupled five-axle linkage Intelligent welding platform according to claim 2, it is characterized in that, described first side chain, the second side chain include connecting plate, connecting rod, described connecting plate is fixedly installed on below described first mover, the second mover respectively, and described connecting rod two ends are articulated with below described connecting plate and above described moving platform respectively.
4. New-type mixed-coupled five-axle linkage Intelligent welding platform according to claim 3, it is characterized in that, the identical length etc. of the connecting rod of described first side chain, the second side chain, and the connecting rod forming same side chain is parallel to each other.
5. New-type mixed-coupled five-axle linkage Intelligent welding platform according to claim 4, is characterized in that, described serial kinematic unit coordinates ball wire bar pair to drive by linear electric motors, cylinder or electric rotating machine.
6. New-type mixed-coupled five-axle linkage Intelligent welding platform according to claim 1, it is characterized in that, described visual unit comprises laser vision sensor, image pick-up card and industrial control computer, and described industrial control computer obtains the weld image data of described laser vision sensor by described image pick-up card.
CN201520577544.4U 2015-08-04 2015-08-04 Novel series -parallel connection five -axle linkage intelligence welded platform Expired - Fee Related CN204868868U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105058382A (en) * 2015-08-04 2015-11-18 汕头大学 Novel series-parallel five-axis-linkage intelligent welding platform
CN105834596A (en) * 2016-06-12 2016-08-10 佛山市联智新创科技有限公司 Light guide plate cutting mechanism
CN105922756A (en) * 2016-06-16 2016-09-07 深圳市全印图文技术有限公司 Printing machine capable of combined jet printing
CN107984095A (en) * 2016-06-12 2018-05-04 河南高盛企业管理咨询有限公司 A kind of light guide plate processing machine structure
CN112916434A (en) * 2021-01-22 2021-06-08 江门职业技术学院 Sorting parallel robot system capable of adjusting placement modes in multiple angles on large scale

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105058382A (en) * 2015-08-04 2015-11-18 汕头大学 Novel series-parallel five-axis-linkage intelligent welding platform
CN105834596A (en) * 2016-06-12 2016-08-10 佛山市联智新创科技有限公司 Light guide plate cutting mechanism
CN105834596B (en) * 2016-06-12 2018-03-06 武威市锦范工贸有限责任公司 A kind of light guide plate cutting mechanism
CN107877000A (en) * 2016-06-12 2018-04-06 湖南湘讯企业管理有限公司 A kind of light guide plate cutting mechanism
CN107984095A (en) * 2016-06-12 2018-05-04 河南高盛企业管理咨询有限公司 A kind of light guide plate processing machine structure
CN105922756A (en) * 2016-06-16 2016-09-07 深圳市全印图文技术有限公司 Printing machine capable of combined jet printing
CN112916434A (en) * 2021-01-22 2021-06-08 江门职业技术学院 Sorting parallel robot system capable of adjusting placement modes in multiple angles on large scale
CN112916434B (en) * 2021-01-22 2022-09-09 江门职业技术学院 Sorting parallel robot system capable of adjusting placement modes in multiple angles on large scale

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Granted publication date: 20151216

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CF01 Termination of patent right due to non-payment of annual fee