Background technology
Three-dimensional measurement technology is widely used in Automated condtrol processing, industry detects automatically, control of product quality etc., especially field of machine vision.CN 102785073A discloses a kind of CCD and detects pressing structure, whether for qualified after testing product assembling, the position of its CCD camera is adjusted by knob, and positioning precision is not high and automaticity is low, secondly moving range is confined in the mounting hole of CCD sliding panel, and detection efficiency is lower.CN 102267274A discloses a kind of micron accuracy three layer plane workpiece contraposition robot system, and its X-axis displacement platform, Y-axis displacement platform, Z axis displacement platform and horizontal rotating table, all adopt the driving stepper motor that open type controls.Owing to being that open type controls, the system position error that the interference of environment causes cannot compensate, and therefore this robot system positioning precision is limited.Secondly, there is rotating speed and the low problem of torque in stepper motor, so this contraposition robot system, response speed is lower.3rd, stepper motor volume weight is large, and energy utilization rate is low, and this must cause this robot system volume weight huge, and the problem that power consumption is larger.
Along with the development of automation and material technology, techniques of linear motor is gradually ripe.Techniques of linear motor, without intermediate conversion mechanism, structure is simple, and mechanical efficiency is high; Next linear electric motors speed, acceleration characteristic are good, and response is fast, and positioning precision is high, and therefore the combination of techniques of linear motor and three-dimensional measurement technology is, the development trend of high precision test equipment.
Summary of the invention
The problem low for existing high precision test device responds speed, environment resistant interference is poor, volume weight is large and power consumption is large, the present invention proposes one and directly drives energy-conservation on-line checkingi and efficient assembly equipment, efficiently solves above-mentioned deficiency.
One directly drives energy-conservation on-line checkingi and efficient assembly equipment comprises linear electric motors platform, pneumatic system and control system, and the output of control system is connected with linear electric motors platform and pneumatic system connects.Described linear electric motors platform comprises X-axis platform 1, Y-axis platform 9, work stage 12, moment turntable 13, U-shaped linear electric motors I 4, U-shaped linear electric motors II 8, U-shaped linear electric motors III 10, U-shaped linear electric motors IV 15, guide rail I 2, guide rail II 3, guide rail III 14, guide rail IV 19, L shape seat 21, main basal base 11 and steelframe support 7; The stationary part of U-shaped linear electric motors I 4 and U-shaped linear electric motors II 8, guide rail I 2 and guide rail II 3 are positioned on X-axis platform 1, and U-shaped linear electric motors I 4 are connected with Y-axis platform 9 with the subpart of U-shaped linear electric motors II 8; Y-axis platform 9, under the driving of U-shaped linear electric motors I 4 and U-shaped linear electric motors II 8, moves back and forth along guide rail I 2 and guide rail II 3; Guide rail III 14 and guide rail IV 19 are installed on main basal base 11, the stationary part of U-shaped linear electric motors III 10 and U-shaped linear electric motors IV 15 is fixed on the both sides of main basal base 11, U-shaped linear electric motors III 10 are connected with X-axis platform 1 with the subpart of U-shaped linear electric motors IV 15, X-axis platform 1, under the combination of U-shaped linear electric motors III 10 and U-shaped linear electric motors IV 15 drives, moves back and forth along guide rail III 14 and guide rail IV 19; The length direction of guide rail I 2 and guide rail II 3 and the projection of length direction in horizontal plane of guide rail III 14 and guide rail IV 19 orthogonal; The stator of moment turntable 13 is fixed on the center of main basal base 11, and work stage 12 is positioned on the mover of moment turntable 13, is positioned over lower workpiece 6 in work stage 12 under the rotation of moment turntable 13, realizes the adjustment of angle orientation; Main basal base 11 is positioned at above steelframe support 7;
Described pneumatic system comprises Pneumatic slid platform 22, set a table 23, suction cup carrier 16 and several sucker 18;
Described control system comprises industrial computer 31, controller, driver, connecting circuit, CCD camera I 17 and CCD camera II 20; CCD camera I 17, CCD camera II 20 and several sucker 18 are installed in suction cup carrier 16, and setting a table of suction cup carrier 16 and variable-angle 23 is connected, and set a table 23 affixed with Pneumatic slid platform 22, Pneumatic slid platform 22 is connected with Y-axis platform 9 through L shape seat 21; Set a table 23 along with Pneumatic slid platform 22 is along L shape seat 21 in the vertical direction liter or decline; Set a table 23 under the manipulation of control system, the angle orientation of the upper workpiece 5 of adjustment suction cup carrier 16, CCD camera I 17, CCD camera II 20, sucker 18 and adhesive thereof; To set a table 23 tops being positioned at moment turntable 13, the lower workpiece 6 be positioned on moment turntable 13 can be coordinated with the upper workpiece 5 be positioned on sucker 18 and assemble;
Industrial computer 31 controls described linear electric motors platform, pneumatic system and CCD camera, sucker 18 adhesive of upper workpiece 5 and pneumatic system, lower workpiece 6 is fixed on the moment turntable 13 of described linear electric motors platform, setting a table of described pneumatic system 23 is connected with the L shape seat 21 of described linear electric motors platform, CCD camera I 17 and CCD camera II 20 detect the position relationship of upper workpiece 5 and lower workpiece 6 in real time, and position signalling is fed back on industrial computer 31, realize closed-loop control.Compact integral structure, moving component is few, and the excellent speed characteristics of linear electric motors and energy conservation characteristic, and therefore this checkout equipment fast response time, energy-saving effect are obvious.Secondly have four frees degree with the upper workpiece 5 of sucker 18 adhesive, lower workpiece 6, also can angle adjustment under moment turntable 13 drives, therefore, this device action flexibly, can be handling good.
In order to improve aligning accuracy and the environment resistant interference of this equipment, U-shaped linear electric motors I 4 of the present invention, U-shaped linear electric motors II 8, U-shaped linear electric motors III 10 and U-shaped linear electric motors IV 15, Pneumatic slid platform 22, set a table 23, CCD camera I 17, CCD camera II 20 and described control system form described position closed loop reponse system, CCD camera I 17 and CCD camera II 20 take the orientation of lower workpiece 6, control system calculates according to the orientation of lower workpiece 6 determines X-axis platform 1, the displacement of Y-axis platform 9 and Pneumatic slid platform 22, and set a table 23 angle displacement amount, control X-axis platform 1, Y-axis platform 9, Pneumatic slid platform 22 and setting a table 23 is accurately located, thus the upper workpiece 5 making sucker 18 capture is at the traffic direction of X-axis and X-axis platform 1, Y-axis and Y-axis platform 9 traffic direction, Z axis and Pneumatic slid platform 22 are along the traffic direction of L shape seat 21 and all accurately locate around four frees degree that Y-axis rotates, positioning precision reaches micron order, moment turntable 13, work stage 12 and industrial computer 31 form described position closed loop reponse system, make the angle orientation accurate adjustment of work stage 12 and lower workpiece 6, therefore go up workpiece 5 and reach micron order with the contraposition installation accuracy of lower workpiece 6, and the reliability that contraposition is installed is high.
Equipment display floater 30 of the present invention is furnished with industrial computer 31, on display floater 30, top board 24, Qianmen 28 and Qianmen under 32 to make with lucite, compact visual; Electrical control cubicles 25 is placed on equipment rear, and is connected with left plate 26 and right plate 29; All open operation slot 27 in the middle part of left plate 26 and right plate 29, facilitate pipelining.
The present invention can obtain following beneficial effect:
Upper workpiece 5 is under the drive of linear electric motors platform and pneumatic system, and can realize four-degree-of-freedom and accurately locate, the angle orientation being positioned over the lower workpiece 6 of moment turntable 13 also can accurately adjust, therefore this device action flexibly, can be handling good.
Be fixed on the CCD camera I 17 in suction cup carrier 16 and CCD camera II 20, be synchronized with the movement with the upper workpiece 5 of sucker 18 adhesive, the position relationship of workpiece 5 and lower workpiece 6 in real-time detection, the displacement of linear electric motors platform and Pneumatic slid platform 22 described in described control system On-line Control, and set a table 23 angle displacement amount, make workpiece 5, lower workpiece 6 can fast, accurate contraposition.Because CCD camera scanning accuracy is high, and energy Real-time Feedback is to control system, and therefore this equipment aligning accuracy is high, reaches micron order, and anti-interference is good, and reliability is high.
This equipment compact integral structure, moving component is few, and equipment body employing linear electric motors drive, and response is fast, positioning precision is high, energy-saving effect is obvious, is suitable for the high accuracy of the electronic product such as PCB, liquid crystal flat-panel, fast responsively detection and contraposition and installs occasion.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are described.
After upper workpiece 5 is positioned in work stage 12, if there is angular misalignment in the adhesive face of sucker 18 with the adhesive face of upper workpiece 5, moment turntable 13 rotates, and drives work stage 12 and upper workpiece 5 to rotate, can realize workpiece 5 angle orientation consistent with the working face of sucker 18.
Thereupon, suction cup carrier 16 and sucker 18 set a table 23 driving under, make the adhesive face of sucker 18 parallel with upper workpiece 5 adhesive face.
Then Pneumatic slid platform 22 is transferred, and drives sucker 18 and the adhesive of upper workpiece 5.After sucker 18 and the adhesive of upper workpiece 5, Pneumatic slid platform 22 rises, and upper workpiece 5 is promoted certain distance.To set a table 23 change angles, make workpiece 5 and work stage 12 present certain angle, to facilitate, purging dust removal is carried out to the working face of upper workpiece 5.
Next the location and installation of two coupling workpiece will be carried out.First target location and the angular relationship of workpiece 5 and lower workpiece 6 are set on industrial computer 31.By U-shaped linear electric motors I 4, U-shaped linear electric motors II 8, U-shaped linear electric motors III 10, U-shaped linear electric motors IV 15, set a table 23, position closed loop reponse system that CCD camera I 17, II 20 and industrial computer 31 form, the traffic direction at X-axis and X-axis platform 1 between workpiece 5, lower workpiece 6 in detection, Y-axis and Y-axis platform 9 traffic direction, Z axis and Pneumatic slid platform 22 are along the traffic direction of L shape seat 21 and the physical location in Y-axis anglec of rotation orientation and angular relationship.Sucker 18 is first by upper workpiece 5 adhesive of place work piece platform 12, and promote certain distance, X-axis and the Y-axis orientation of upper workpiece 5 also can adjust through linear electric motors as required, then are fixed in work stage 12 by lower workpiece 6.Then, start linear electric motors and moment turntable 13, make the angle orientation of workpiece 5 and lower workpiece 6 unanimous on the whole.Described position closed loop reponse system drives X-axis platform 1, Y-axis platform 9, move, and feed back to described control system to real time position relation, the location matches of workpiece 5 and lower workpiece 6 in realization in set a table 23 and Pneumatic slid platform 22 and moment turntable 13.Subsequently, Pneumatic slid platform 22 declines, and is accurately installed on lower workpiece 6 by upper workpiece 5.Sucker 18 and upper workpiece 5 depart from adhesive, and namely the accurate location and installation operation of two coupling workpiece has accused.
Repeat aforesaid operations, the assembling of contraposition quickly and accurately of multiple workpiece can be carried out.