CN112903719A - CCD camera angle adjusting system and method for lens detection - Google Patents
CCD camera angle adjusting system and method for lens detection Download PDFInfo
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- CN112903719A CN112903719A CN202110080463.3A CN202110080463A CN112903719A CN 112903719 A CN112903719 A CN 112903719A CN 202110080463 A CN202110080463 A CN 202110080463A CN 112903719 A CN112903719 A CN 112903719A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
The invention discloses a CCD camera angle adjusting system and method for lens detection, which comprises a CCD camera component, a camera adjusting component, a lens displacement component and a rack component, wherein the camera adjusting component is fixedly connected with the top of the rack component through a gantry, the CCD camera component is arranged on the side edge of the camera adjusting component, and the bottom side of the lens displacement component is fixedly connected with the top of the rack component. The lens is conveyed to the position below the CCD camera component by the lens displacement component, the camera angle is adjusted by the camera adjusting component, the CCD camera component shoots a picture of the lens, and the lens displacement component moves the next lens to the position below the lens after shooting is finished.
Description
Technical Field
The invention relates to the technical field of automation, in particular to a CCD camera angle adjusting system and method for lens detection.
Background
At present, two modes of manual detection and equipment detection are mainly adopted in the link of lens detection in the lens production industry, a large amount of labor cost is consumed for manual detection so as to be eliminated by the market gradually, and the equipment detection gradually becomes the market mainstream. Traditional lens check out test set adopts tray material loading mode more, places a plurality of lenses in same tray, makes every lens loop through the detection camera through removing the tray, and the camera is shot every lens and is contrasted with the template and will unqualified lens mark, plays the material station by follow-up NG and takes out unqualified product. The detection mode has two problems, one is that the tray type feeding mode lacks limitation on the position of the lens, and the lens often does not reach the designated position, so that the difference between the camera and the template is large, and the lens is kicked by mistake.
Another problem is that the conventional inspection camera only takes a photograph of the top projection from the right above and compares the photograph with the template, which is not very problematic when the inspection camera is used for a flat lens, but if the inspection object is a curved lens with a curvature, a photograph of the top projection cannot determine whether the curved lens with the curvature meets the standard.
Disclosure of Invention
The present invention is directed to a system and method for adjusting the angle of a CCD camera for lens inspection, so as to solve the above-mentioned problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the CCD camera angle adjusting system for detecting the lens comprises a CCD camera component, a camera adjusting component, a lens displacement component and a rack component, wherein the bottom of the camera adjusting component is arranged in the rack component and is fixedly connected with the side wall of the rack, the CCD camera component is arranged on the side edge of the camera adjusting component, the bottom side of the lens displacement component is fixedly connected with the top of the rack component, the camera adjusting component comprises an adjusting module, a horizontal bottom plate, a shaft supporting plate, a driving shaft, a driven shaft, a driving gear, a driven gear, a bearing, a swing rod and a vertical back plate, the bottom of the adjusting module is connected with the horizontal bottom plate, the top of the adjusting module is connected with the shaft supporting plate, the driving shaft and the driven shaft are arranged on the shaft supporting plate through the bearing, the driving gear is arranged in the middle of the driving shaft, one side, driven gear is installed to driven shaft one side, opposite side and CCD camera subassembly fastening connection, vertical backplate back and frame subassembly lateral wall fastening connection can drive the driving shaft and rotate when rocking bar deflects, and the driving shaft drives the driving gear and rotates, driving gear and driven gear meshing, and driven gear drives the driven shaft and rotates, and the driven shaft drives CCD camera subassembly and rotates. The lens is conveyed to the position below the CCD camera component by the lens displacement component, the camera angle is adjusted by the camera adjusting component, the CCD camera component shoots a picture of the lens, and the lens displacement component moves the next lens to the position below the lens after shooting is finished. The lens displacement assembly positions the carrier which is designed for a single lens through the carrier in-out device, so that each lens can accurately reach a designated position, and NG misjudgment caused by inaccurate positioning is greatly reduced. The camera adjusting component ensures that the camera can shoot each lens in a mode that the lens is always vertical to the curved surface section of the lens when shooting each lens by controlling the same beat of the CCD camera component in the X-direction displacement, the Z-direction displacement and the deflection angle, the distance between the camera and the lens surface is always constant when shooting, continuous multiple pictures are shot from left to right according to the included angle corresponding to the curved surface of the lens, the central parts of the multiple pictures are intercepted to be manufactured into complete projections of the curved surface to be compared with the template, the projection pictures obtained by the shooting mode can better reflect the characteristics of the lens than the top view projection, and the accuracy of the detection equipment is greatly improved.
Further, the CCD camera subassembly includes camera mounting panel, industry camera, the solid fixed ring of camera lens, bowl lamp, annular lamp, CCD installation riser and micromatic setting, camera mounting panel and the solid fixed ring of camera lens are installed at CCD installation riser openly, industry camera afterbody and camera mounting panel fastening connection, industry camera lens department are installed in the camera lens fixed ring, bowl lamp and annular lamp pass through the sheet metal connecting piece to be fixed on CCD installation riser, and bowl lamp and annular lamp and industry camera are coaxial, and wherein the bowl lamp is located industry camera below, and the annular lamp is located bowl lamp below, micromatic setting installs at CCD installation riser back. The lens can obtain the light filling of full angle through the cooperation use of bowl lamp and annular lamp to the photo that the camera shot is more clear, and micromatic setting can realize the fine adjustment of camera and lens surface distance, goes to select the most suitable shooting distance through the distance adjustment.
Further, micromatic setting includes backplate, fine setting guide rail, fine setting slider, fixed panel beating, adjust knob, knob fixed block, cup head screw and fix with screw block, backplate and driven shaft link to each other, and the fine setting guide rail is installed on the backplate, and the fine setting slider is installed on the fine setting guide rail, fine setting slider top and CCD installation riser fastening connection, fixed panel beating one end and backplate are connected, and the fixed panel beating other end and CCD installation riser are connected, the knob fixed block is installed on CCD installation riser, and adjust knob installs on the knob fixed plate, and adjust knob and cup head screw link to each other, cup head screw with the fix with screw block passes through threaded connection, and the fix with screw block installs on the backplate. The adjusting knob is rotated to drive the cup head screw to rotate in the threaded hole of the screw fixing block, so that fine adjustment of the relative position of the screw fixing block and the knob fixing block can be achieved, fine adjustment of the camera in the Z-axis direction is achieved, the most appropriate distance can be selected through fine adjustment, and the definition of photos is improved.
Furthermore, the camera adjusting assembly further comprises a horizontal guide rail, a horizontal slider, vertical side plates, trundles, a vertical support, a cylindrical cam, a vertical guide rail, a vertical slider and a servo motor, the bottom of the adjusting module is connected with a horizontal bottom plate, the top of the adjusting module is connected with a shaft support plate, the horizontal slider is arranged on two sides of the bottom side of the shaft support plate and is connected with the horizontal guide rail in series, the bottom of the horizontal guide rail is connected with the horizontal bottom plate, the driving shaft and the driven shaft are arranged on the shaft support plate through bearings, a driving gear is arranged in the middle of the driving shaft, one side of the driving shaft is fixedly connected with a swing rod, a guide rod extending above the vertical back plate is clamped in a strip-shaped hole of the swing rod, the top of the vertical side plate is fixedly connected with the bottom of the horizontal bottom, the servo motor is fixed on the bottom side of the bottom of the vertical back plate and connected with the cylindrical cam through a coupler, and the back of the vertical back plate is fixedly connected with the side wall of the rack assembly.
When the camera is used for shooting, in order to keep a constant distance with the surface of the lens all the time and enable the lens angle to point to the circle center position of the arc-shaped lens, the camera needs to move by one arc length above each lens by taking the circle center of the lens as the circle center, and the camera needs to continuously adjust the angle in the moving process. To achieve this function, the present invention decomposes the camera motion into X-direction motion, Z-direction motion, and lens yaw motion, with the X-direction motion being performed by the adjustment module driving the shaft support plate. The adjusting module reciprocates once in a beat, namely, the camera reciprocates once above the lens, the adjusting module drives the driving shaft to move when moving, the driving shaft is fixedly connected with a swing rod, a guide rod extending out of a vertical back plate is inserted in a strip-shaped hole of the swing rod, the vertical back plate is fixed, so that the swing rod can deflect in a fixed angle when the driving shaft reciprocates, the size of the deflection angle is related to the distance between the guide rod on the vertical back plate and the driving shaft, the driving shaft is driven to rotate when the swing rod deflects, the driving shaft drives a driving gear to rotate, the driving gear is meshed with a driven gear, the driven gear drives a driven shaft to rotate, the driven shaft drives a CCD camera assembly to rotate, the deflection included angle of the swing rod can be equivalent to the included angle formed by two sides of the lens to the center of a circle by adjusting the transmission ratio of the driving gear and the driven gear, and the shooting angle can, the axis of the camera is always vertical to the tangential direction of the surface of the lens. The displacement of Z direction is controlled through the cylindrical cam, the radian of the outer edge of the cylindrical cam is designed according to the displacement of the camera in the Z direction, the cylindrical cam rotates for a half circle, the camera reaches the highest point from the lowest point and returns to the lowest point, the rotation circle just corresponds to the change of one beat in the X direction, through the combination of the same beat to the split motion, the camera keeps the distance with the lens unchanged all the time, the lens direction always points to the center of the lens, through the continuous snapshot of the arc surface, the center of the shot picture is combined again, the planar projection of the arc surface is obtained, the projection is obviously more representative compared with the projection of the picture right above, and the precision of the detection equipment is greatly improved by the design.
Further, the lens displacement assembly comprises an XY module and a carrier in-out device, the bottom of the XY module is installed at the top of the rack assembly, and the carrier in-out device is installed on the XY module. The XY module can realize the displacement of carrier business turn over device in the platform plane, according to the control program operation that has set for, every lens can reach the position of shooing under XY module's drive. The carrier in-out component can limit the position of the carrier, and each lens in the carrier is determined to be located at the designated position, so that misjudgment caused by lens offset during photographing is prevented.
Further, the XY module comprises a Y-direction workbench, an X-direction workbench, guide rails, a slide block, a linear motor, a Y-axis limit stop and an X-axis limit stop, the bottom side of the Y-direction workbench is fixedly connected with the top of the rack assembly, the guide rails are arranged on two sides of the top of the Y-direction workbench, the slide block is arranged on the guide rails, the top of the slide block is fixedly connected with the X-direction workbench, the linear motor is arranged on the inner sides of the two guide rails, the bottom of the linear motor is fixedly connected with the top of the Y-direction workbench, the top of the linear motor is fixedly connected with the bottom of the X-direction workbench, the Y-axis limit stop is arranged on the upper surface of the Y-direction workbench and is respectively positioned at two ends of the linear motor, the other set of the guide rails is arranged on two sides of the X-direction workbench, the installation direction of the guide rails arranged, the top of a sliding block mounted on a guide rail on the X-direction workbench is fixedly connected with the bottom of the carrier in-out device, the linear motor is also mounted in the middle of the other guide rail on the X-direction workbench, the bottom side of the linear motor is fixedly connected with the top of the X-direction workbench, the top of the linear motor is fixedly connected with the bottom of the carrier in-out device, and the X-axis limit stops are mounted at two ends of the linear motor. The Y-direction workbench is fixed on the rack assembly and keeps still, the linear motor can adjust the displacement of the motor sliding table under the program control, the displacement of the X-direction workbench in the Y direction is controllable through the linear motor in the Y direction, the displacement in the X direction is controllable through the linear motor in the X direction on the basis of the displacement in the Y direction, the stress balance of two sides of the workbench when the workbench moves in the XY direction is guaranteed through the guide rail and the sliding block, the side turning cannot occur, the Y-axis limit stop block and the X-axis limit stop block limit the displacement, and the occurrence of the sliding block derailing condition is avoided. The accurate control of the displacement of the carrier in-out device can be realized through the XY module, so that each lens can be photographed at a specified position.
Further, the carrier in-out device comprises a bottom plate, a support column, an upper product cover plate, an in-out guide rail, an in-out slide block, an in-out air cylinder, a slide block mounting plate, a floating joint mounting plate, a carrier, linear bearings, guide shafts, a carrier support plate and a lifting air cylinder, wherein the bottom side of the bottom plate is fixedly connected with the upper surface of the slide block and the upper surface of a linear motor, the bottom of the support column is fixedly connected with the top of the bottom plate, the top of the support column is fixedly connected with the bottom of the upper product cover plate, the in-out guide rail is arranged on two sides of the upper surface of the bottom plate, the in-out slide block is arranged on the in-out guide rail, the top of the in-out slide block is fixedly connected with the bottom of the slide block mounting plate, the side edge of the slide block, the business turn over cylinder is installed at the bottom plate upside, and the floating joint of business turn over cylinder front end is fixed on the floating joint mounting panel, lift cylinder side and slider mounting panel fastening connection, the floating joint at lift cylinder top is fixed in the carrier backup pad, the carrier is placed in the carrier backup pad, fixes a position through the locating pin. The lifting cylinder is in a non-extending state when the carrier in-out device is in an initial state, the carrier is not arranged on the carrier supporting plate at the moment, the in-out cylinder pushes the floating joint mounting plate, the floating joint mounting plate drives the two slider mounting plates connected with the floating joint mounting plate to move outwards, the carrier supporting plate is removed accordingly, a worker places the carrier filled with the lens to be detected on the carrier supporting plate, the in-out cylinder retracts, and the carrier supporting plate is brought back to the initial position. The lifting cylinder stretches out at the moment, the carrier supporting plate is lifted up to drive the carrier above the lifting cylinder to move upwards, the carrier moves upwards and the top of the carrier extends into the upper cover plate of the product, each lens enters an independent groove, and each lens is fixed at a designated position in an up-and-down clamping mode. The lens can accurately reach the detection position by the positioning mode, and the precision of the detection device is improved.
Further, the adjusting method of the CCD camera angle adjusting system for lens detection comprises the following steps:
And 3, the camera is always vertical to the tangential direction of the surface of the lens when rotating, a plurality of pictures shot by the camera are intercepted, the central parts of the pictures are combined into a complete upper surface projection picture of the lens, and the projection picture is compared with the template picture.
Compared with the prior art, the invention has the following beneficial effects: the camera adjusting component ensures that a camera can shoot each lens above the lens in a mode that a lens is always vertical to a curved surface section of the lens by controlling the X-direction displacement, the Z-direction displacement and the deflection angle of the CCD camera component at the same time, so that the accuracy of the detection equipment is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a side view of a CCD camera assembly of the present invention;
FIG. 4 is a front view of the camera adjustment assembly of the present invention;
FIG. 5 is a side view of the camera adjustment assembly of the present invention;
FIG. 6 is a schematic view of a lens shift assembly of the present invention;
FIG. 7 is a schematic view of the XY module structure of the present invention;
FIG. 8 is a top view of the XY module of the present invention;
FIG. 9 is a schematic view of a carrier access device according to the present invention;
FIG. 10 is a front view of the carrier access device of the present invention;
FIG. 11 is a view of the carrier component of the present invention;
FIG. 12 is an enlarged partial view A of the present invention;
FIG. 13 is a partial enlarged view B of the present invention;
in the figure: 1-CCD camera component, 11-camera mounting plate, 12-industrial camera, 13-lens fixing ring, 14-bowl lamp, 15-annular lamp, 16-CCD mounting vertical plate, 17-fine adjustment device, 171-back plate, 172-fine adjustment guide rail, 173-fine adjustment slide block, 174-fixing metal plate, 175-adjustment knob, 176-knob fixing block, 177-cup head screw, 178-screw fixing block, 2-camera adjustment component, 21-adjustment module, 22-horizontal guide rail, 23-horizontal slide block, 24-horizontal bottom plate, 25-shaft supporting plate, 26-driving shaft, 27-driven shaft, 28-driving gear, 29-driven gear, 211-swing rod, 212-vertical side plate, 213-caster wheel, 214-vertical support, 215-cylindrical cam, 216-vertical guide rail, 217-vertical sliding block, 218-vertical back plate, 219-servo motor, 3-lens displacement component, 31-XY module, 311-Y direction workbench, 312-X direction workbench, 313-guide rail, 314-sliding block, 315-linear motor, 316-Y axis limit stop, 317-X axis limit stop, 32-carrier in-out device, 321-bottom plate, 322-supporting column, 323-product upper cover plate, 324-in-out guide rail, 325-in-out sliding block, 326-in-out cylinder, 327-sliding block mounting plate, 328-floating joint mounting plate, 329-carrier, 3210-linear bearing, 3211-guide shaft, 3212-carrier support plate, 3213 lifting cylinder, 4 frame component.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-13, the present invention provides the following technical solutions:
as shown in fig. 1 and 2, the CCD camera angle adjusting system for lens detection comprises a CCD camera assembly 1, a camera adjusting assembly 2, a lens displacement assembly 3 and a frame assembly 4, wherein the camera adjusting assembly 2 is fastened and connected to the top of the frame assembly 4 through a gantry, the CCD camera assembly 1 is mounted on the side of the camera adjusting assembly 2, the bottom side of the lens displacement assembly 3 is fastened and connected to the top of the frame assembly 4, the camera adjusting assembly 2 comprises an adjusting module 21, a horizontal bottom plate 24, a shaft supporting plate 25, a driving shaft 26, a driven shaft 27, a driving gear 28, a driven gear 29, a bearing, a swing rod 211 and a vertical back plate 218, the bottom of the adjusting module 21 is connected to the horizontal bottom plate 24, the top is connected to the shaft supporting plate 25, the driving shaft 26 and the driven shaft 27 are mounted on the shaft supporting plate 25 through the bearing, the driving, driving shaft 26 one side and rocking bar 211 fastening connection, the guide arm card that stretches out above vertical backplate 218 is in the bar downthehole of rocking bar 211, and driven gear 29 is installed to driven shaft 27 one side, opposite side and CCD camera subassembly 1 fastening connection, vertical backplate 218 back and rack assembly 4 lateral wall fastening connection can drive driving shaft 26 when rocking bar 211 deflects and rotate, and driving shaft 26 drives driving gear 28 and rotates, and driving gear 28 and driven gear 29 mesh, and driven gear 29 drives driven shaft 27 and rotates, and driven shaft 27 drives CCD camera subassembly 1 and rotates. The lens is carried CCD camera subassembly 1 below by lens displacement subassembly 3, and camera angle is adjusted to camera adjusting part 2, and CCD camera subassembly 1 carries out the photo to the lens and shoots, and lens displacement subassembly 3 moves next lens below the camera lens after finishing shooting again. The lens displacement assembly 3 of the present invention positions the carrier 329 designed for each lens through the carrier in-out device 32, so that each lens can accurately reach the designated position, and NG misjudgment caused by inaccurate positioning is greatly reduced. The camera adjusting component 2 ensures that a camera can shoot each lens in a mode that a lens is always vertical to a curved surface section of the lens when shooting each lens by controlling the displacement of the CCD camera component 1 in the X direction, the displacement of the Z direction and the deflection angle in the same beat, the camera always keeps constant distance with the lens surface when shooting, continuous multiple pictures are shot from left to right according to an included angle corresponding to the curved surface of the lens, the central parts of the multiple pictures are intercepted to be manufactured into complete projections of the curved surface to be compared with a template, the projection pictures obtained by the shooting mode can better reflect the characteristics of the lens than top view projection, and the accuracy of the detection equipment is greatly improved.
As shown in fig. 3, CCD camera subassembly 1 includes camera mounting panel 11, industry camera 12, the solid fixed ring 13 of camera lens, bowl lamp 14, annular lamp 15, CCD installation riser 16 and micromatic setting 17, camera mounting panel 11 and the solid fixed ring 13 of camera lens are installed at CCD installation riser 16 openly, 12 afterbody of industry camera and 11 fastening connection of camera mounting panel, 12 camera lens departments of industry camera are installed in solid fixed ring 13 of camera lens, bowl lamp 14 and annular lamp 15 pass through the sheet metal connector to be fixed on CCD installation riser 16, and bowl lamp 14 and annular lamp 15 are coaxial with industry camera 12, and wherein bowl lamp 14 is located industry camera 12 below, and annular lamp 15 is located bowl lamp 14 below, micromatic setting 17 is installed at the 16 backs of CCD installation riser. Use through the cooperation of bowl lamp 14 and annular lamp 15, the lens can obtain the light filling of full angle to the photo that the camera shot is more clear, and micromatic setting 17 can realize the fine adjustment of camera and lens surface distance, removes to select the most suitable shooting distance through the distance adjustment.
As shown in fig. 3, the fine-tuning device 17 includes a back plate 171, a fine-tuning guide rail 172, a fine-tuning slider 173, a fixed metal plate 174, an adjusting knob 175, a knob fixed block 176, a cup head screw 177 and a screw fixed block 178, the back plate 171 is connected with the driven shaft 27, the fine-tuning guide rail 172 is installed on the back plate 171, the fine-tuning slider 173 is installed on the fine-tuning guide rail 172, the top of the fine-tuning slider 173 is fastened to the CCD installation riser 16, one end of the fixed metal plate 174 is connected with the back plate 171, the other end of the fixed metal plate 174 is connected with the CCD installation riser 16, the knob fixed block 176 is installed on the CCD installation riser 16, the adjusting knob 175 is installed on the knob fixed plate, the adjusting knob 175 is connected with the cup head screw 177, the cup. The adjusting knob 175 is rotated to drive the cup head screw 177 to rotate in the threaded hole of the screw fixing block 178, so that the relative position of the screw fixing block 178 and the knob fixing block 176 can be finely adjusted, the camera can be finely adjusted in the Z-axis direction, the most appropriate distance can be selected for photographing through fine adjustment, and the definition of a photo is improved.
As shown in fig. 4 and 5, the camera adjusting assembly 2 includes an adjusting module 21, a horizontal guide rail 22, a horizontal slider 23, a horizontal bottom plate 24, a shaft support plate 25, a driving shaft 26, a driven shaft 27, a driving gear 28, a driven gear 29, a bearing, a swing rod 211, a vertical side plate 212, a caster 213, a vertical bracket 214, a cylindrical cam 215, a vertical guide rail 216, a vertical slider 217, a vertical back plate 218, and a servo motor 219, wherein the bottom of the adjusting module 21 is connected with the horizontal bottom plate 24, the top of the adjusting module is connected with the shaft support plate 25, the horizontal slider 23 is mounted on both sides of the bottom side of the shaft support plate 25, the horizontal slider 23 is strung on the horizontal guide rail 22, the bottom of the horizontal guide rail 22 is connected with the horizontal bottom plate 24, the driving shaft 26 and the driven shaft 27 are mounted on the shaft support plate 25 through, the guide rod extending above the vertical back plate 218 is clamped in a strip-shaped hole of the swing rod 211, the top of the vertical side plate 212 is fixedly connected with the bottom of the horizontal bottom plate 24, vertical sliding blocks 217 are installed on two sides of the vertical side plate 212, the vertical sliding blocks 217 are connected on the vertical guide rails 216 in series, the vertical guide rails 216 are installed on the vertical supports 214, the side edges of the vertical supports 214 are fixedly connected with the vertical back plate 218, the casters 213 are installed at the bottom of the vertical side plate 212, the casters 213 are pressed on the outer edges of the cylindrical cams 215, the lower portions of the cylindrical cams 215 are installed on the top sides of the bottom of the vertical back plate 218 through thrust ball bearings, the servo motor 219 is fixed on the bottom sides of the bottom of the vertical back plate 218 and connected with the cylindrical.
When the camera is used for shooting, in order to keep a constant distance with the surface of the lens all the time and enable the lens angle to point to the circle center position of the arc-shaped lens, the camera needs to move by one arc length above each lens by taking the circle center of the lens as the circle center, and the camera needs to continuously adjust the angle in the moving process. To achieve this function, the present invention decomposes the camera motion into X-direction motion, which is performed by the adjustment module 21 driving the shaft support plate 25, Z-direction motion, and lens yaw motion. The adjusting module 21 reciprocates once in a beat, namely the camera reciprocates once above the lens, the adjusting module 21 drives the driving shaft 26 to move when moving, the driving shaft 26 is fixedly connected with a swing rod 211, a guide rod extending from a vertical back plate 218 is inserted into a strip-shaped hole of the swing rod 211, the vertical back plate 218 is fixed, so that the swing rod 211 can deflect in a fixed angle when the driving shaft 26 reciprocates, the size of the deflection angle is related to the distance between the guide rod on the vertical back plate 218 and the driving shaft 26, the driving shaft 26 can be driven to rotate when the swing rod 211 deflects, the driving shaft 26 drives the driving gear 28 to rotate, the driving gear 28 is meshed with the driven gear 29, the driven gear 29 drives the driven shaft 27 to rotate, the driven shaft 27 drives the CCD camera assembly to rotate, the deflection included angle of the swing rod 211 can be equivalent to the included angle formed by two sides of the lens to the center of a circle by adjusting the transmission ratio, by the mode, the shooting angle of the camera during reciprocating motion is also deflected in a reciprocating mode, and the axis of the camera is always perpendicular to the tangential direction of the surface of the lens. The displacement in the Z direction is controlled by the cylindrical cam 215, the radian of the outer edge of the cylindrical cam 215 is designed according to the displacement of the camera in the Z direction, the cylindrical cam 215 rotates for a half circle, the camera reaches the highest point from the lowest point and returns to the lowest point, the rotation of the circle just corresponds to the change of one beat in the X direction, the camera keeps the distance with the lens unchanged all the time through the combination of the same beats in the splitting motion, the lens direction always points to the center of the lens, the planar projection of the arc surface is obtained through continuous snapshot of the arc surface and combination of the centers of the shot pictures, the projection is obviously more representative compared with the projection of one picture right above, and the precision of the detection equipment is greatly improved by the design.
As shown in fig. 6, the lens displacement assembly 3 includes an XY module 31 and a carrier access device 32, the bottom of the XY module 31 is mounted on the top of the frame assembly 4, and the carrier access device 32 is mounted on the XY module 31. The XY module 31 can realize the displacement of the carrier in-out device 32 on the machine platform plane, and each lens can reach the photographing position under the driving of the XY module 31 according to the operation of the set control program. The in-out component of the carrier 329 can limit the position of the carrier 329, and determine that each lens in the carrier 329 is at a designated position, so as to prevent misjudgment caused by lens offset during photographing.
As shown in fig. 7 and 8, the XY module 31 includes a Y-direction table 311, an X-direction table 312, a guide rail 313, a slider 314, a linear motor 315, a Y-axis limit stop 316, and an X-axis limit stop 317, wherein the bottom side of the Y-direction table 311 is tightly connected to the top of the frame assembly 4, the guide rails 313 are installed on both sides of the top of the Y-direction table 311, the slider 314 is installed on the guide rail 313, the top of the slider 314 is tightly connected to the X-direction table 312, the linear motor 315 is installed inside the two guide rails 313, the bottom of the linear motor 315 is tightly connected to the top of the Y-direction table 311, the top is tightly connected to the bottom side of the X-direction table 312, the Y-axis limit stops 316 are installed on the upper surface of the Y-direction table 311 at both ends of the linear motor 315, the guide rails 313 are installed on both sides of the X-direction table 312, the installation direction of the guide rails, a slide block 314 is also arranged on a guide rail 313 arranged on the X-direction workbench 312, the top of the slide block 314 arranged on the guide rail 313 on the X-direction workbench 312 is fixedly connected with the bottom of the carrier in-out device 32, the linear motor 315 is arranged in the middle of the guide rail 313 arranged on the X-direction workbench 312, the bottom side of the linear motor 315 is fixedly connected with the top of the X-direction workbench 312, the top of the linear motor 315 is fixedly connected with the bottom of the carrier in-out device 32, and the X-axis limit stoppers 317 are arranged at two ends of the linear motor 315. The Y-direction workbench 311 is fixed on the rack assembly 4 and is kept still, the linear motor 315 can adjust the displacement of the motor sliding table under program control, the displacement of the X-direction workbench 312 in the Y direction is controllable through the linear motor 315 in the Y direction, the displacement in the X direction is controllable through the linear motor 315 in the X direction on the basis of the displacement controllable in the Y direction, the stress balance of two sides of the workbench is guaranteed when the workbench moves in the XY direction through the guide rail 313 and the sliding block 314, the side turning cannot occur, the limit quantity of displacement is limited by the Y-axis limit stopper 316 and the X-axis limit stopper 317, and the occurrence of the derailment condition of the sliding block 314 is avoided. The XY module 31 can realize the accurate control of the displacement of the carrier in-out device 32, thereby ensuring that each lens can be photographed at a specified position.
As shown in fig. 9, 10 and 11, the carrier access device 32 includes a bottom plate 321, a support column, a product upper cover plate 323, an access guide rail 324, an access slider 325, an access cylinder 326, a slider mounting plate 327, a floating joint mounting plate 328, a carrier 329, a linear bearing 3210, a guide shaft 3211, a carrier support plate 3212 and a lifting cylinder 3213, wherein the bottom side of the bottom plate 321 is fastened to the upper surface of the slider 314 and the upper surface of the linear motor 315, the bottom of the support column is fastened to the top of the bottom plate 321, the top of the support column is fastened to the bottom of the product upper cover plate 323, the access guide rail 324 is installed on two sides of the upper surface of the bottom plate 321, the access slider 325 is installed on the access guide rail 324, the top of the access slider 325 is fastened to the bottom of the slider mounting, the guide shaft 3211 is installed in the linear bearing 3210, the top of the guide shaft 3211 is fastened to the bottom of the carrier support plate 3212, the in-out cylinder 326 is installed on the upper side of the base plate 321, the floating joint at the front end of the in-out cylinder 326 is fixed to the floating joint installation plate 328, the side of the lifting cylinder 3213 is fastened to the slider installation plate 327, the floating joint at the top of the lifting cylinder 3213 is fixed to the carrier support plate 3212, and the carrier 329 is placed on the carrier support plate 3212 and positioned by a positioning pin. When the carrier in-out device 32 is in an initial state, the lifting cylinder 3213 is in a non-extended state, and at this time, no carrier 329 is on the carrier support plate 3212, the in-out cylinder 326 pushes the floating joint mounting plate 328, the floating joint mounting plate 328 drives the slider mounting plate 327 connected to the two sides of the floating joint mounting plate to move outwards, the carrier support plate 3212 is also removed, the worker places the carrier 329 filled with the lens to be detected on the carrier support plate 3212, and the in-out cylinder 326 retracts to bring the carrier support plate 3212 back to the initial position. At this time, the lifting cylinder 3213 is extended, the carrier supporting plate 3212 is lifted to drive the carrier 329 above the carrier to move upwards, the carrier 329 moves upwards and the top of the carrier extends into the product upper cover plate 323, each lens enters an individual groove, and each lens is fixed at a designated position by means of up-and-down clamping. The lens can accurately reach the detection position by the positioning mode, and the precision of the detection device is improved.
As shown in fig. 1 to 11, an adjusting method of a CCD camera angle adjusting system for lens inspection, the method comprising the steps of:
And 3, the camera is always vertical to the tangential direction of the surface of the lens when rotating, a plurality of pictures shot by the camera are intercepted, the central parts of the pictures are combined into a complete upper surface projection picture of the lens, and the projection picture is compared with the template picture.
The working principle of the invention is as follows: the worker puts the carrier 329 filled with the lenses to be detected on the carrier supporting plate 3212, the in-and-out air cylinder 326 retracts, the carrier supporting plate 3212 is brought back to the lower part of the product upper cover plate 323, at the moment, the lifting air cylinder 3213 extends out, the carrier supporting plate 3212 is lifted up to drive the carrier 329 above the carrier to move upwards, the carrier 329 moves upwards and the top of the carrier is inserted into the product upper cover plate 323, each lens enters an independent groove, each lens is fixed at a designated position in an up-and-down clamping mode, then the XY module 31 conveys the lens to the lower part of the camera, the camera takes pictures of the lens, the camera adjusting assembly 2 controls the displacement of the CCD camera assembly in the X direction, the displacement of the Z direction and the same beat of the deflection angle in the three directions in the process of taking pictures of the camera assembly, and ensures that the camera can take pictures above each lens in a mode that the lens is always vertical to the, the camera keeps the distance with the mirror surface unchanged all the time when shooting, shoots a plurality of continuous pictures from left to right according to the included angle that the curved surface of lens corresponds, and the complete projection of making the curved surface is compared with the template to a plurality of picture central parts intercepting.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. CCD camera angle governing system that lens detected usefulness, its characterized in that: the adjusting system comprises a CCD camera component (1), a camera adjusting component (2), a lens displacement component (3) and a rack component (4), wherein the bottom of the camera adjusting component (2) is arranged inside the rack component (4) and is fixedly connected with the side wall of the rack, the CCD camera component (1) is arranged on the side edge of the camera adjusting component (2), the bottom side of the lens displacement component (3) is fixedly connected with the top of the rack component (4), the camera adjusting component (2) comprises an adjusting module (21), a horizontal bottom plate (24), a shaft supporting plate (25), a driving shaft (26), a driven shaft (27), a driving gear (28), a driven gear (29), a bearing, a swing rod (211) and a vertical back plate (218), the bottom of the adjusting module (21) is connected with the horizontal bottom plate (24), the top is connected with the shaft supporting plate (25), the driving shaft (26) and the driven shaft (27) are arranged on the shaft supporting plate (, driving gear (28) are installed to driving shaft (26) intermediate position, and driving shaft (26) one side and rocking bar (211) fastening connection, the guide arm card that stretches out above vertical backplate (218) is downthehole at the bar of rocking bar (211), and driven gear (29) are installed to driven shaft (27) one side, opposite side and CCD camera subassembly (1) fastening connection, vertical backplate (218) back and frame subassembly (4) lateral wall fastening connection can drive driving shaft (26) and rotate when rocking bar (211) deflect, and driving shaft (26) drive driving gear (28) rotate, and driving gear (28) and driven gear (29) meshing, driven gear (29) drive driven shaft (27) rotate, and driven shaft (27) drive CCD camera subassembly (1) and rotate.
2. The lens-inspecting CCD camera angle-adjusting system according to claim 1, characterized in that: the CCD camera component (1) comprises a camera mounting plate (11), an industrial camera (12), a lens fixing ring (13), a bowl lamp (14), an annular lamp (15), a CCD mounting vertical plate (16) and a fine adjustment device (17), the camera mounting plate (11) and the lens fixing ring (13) are arranged on the front surface of the CCD mounting vertical plate (16), the tail part of the industrial camera (12) is fixedly connected with the camera mounting plate (11), the lens of the industrial camera (12) is arranged in the lens fixing ring (13), the bowl lamp (14) and the annular lamp (15) are fixed on a CCD mounting vertical plate (16) through a sheet metal connecting piece, the bowl lamp (14) and the annular lamp (15) are coaxial with the industrial camera (12), wherein the bowl lamp (14) is positioned below the industrial camera (12), the annular lamp (15) is positioned below the bowl lamp (14), and the fine adjustment device (17) is arranged on the back surface of the CCD installation vertical plate (16).
3. The lens-inspecting CCD camera angle adjusting system according to claim 2, characterized in that: the fine adjustment device (17) comprises a back plate (171), a fine adjustment guide rail (172), a fine adjustment sliding block (173), a fixed metal plate (174), an adjustment knob (175), a knob fixing block (176), a cup head screw (177) and a screw fixing block (178), the back plate (171) is connected with a driven shaft (27), the fine adjustment guide rail (172) is installed on the back plate (171), the fine adjustment sliding block (173) is installed on the fine adjustment guide rail (172), the top of the fine adjustment sliding block (173) is fixedly connected with a CCD installation vertical plate (16), one end of the fixed metal plate (174) is connected with the back plate (171), the other end of the fixed metal plate (174) is connected with the CCD installation vertical plate (16), the knob fixing block (176) is installed on the CCD installation vertical plate (16), the adjustment knob (175) is installed on the knob fixing plate, the adjustment knob (175) is connected with the cup head screw (177), and the cup head screw (177) is, the screw fixing block (178) is mounted on the back plate (171).
4. The lens-inspecting CCD camera angle-adjusting system according to claim 1, characterized in that: the camera adjusting assembly (2) further comprises a horizontal guide rail (22), a horizontal sliding block (23), a vertical side plate (212), a caster (213), a vertical support (214), a cylindrical cam (215), a vertical guide rail (216), a vertical sliding block (217) and a servo motor (219), wherein the horizontal sliding block (23) is installed on two sides of the bottom side of the shaft support plate (25), the horizontal sliding block (23) is strung on the horizontal guide rail (22), the bottom of the horizontal guide rail (22) is connected with a horizontal bottom plate (24), the top of the vertical side plate (212) is fixedly connected with the bottom of the horizontal bottom plate (24), the vertical sliding block (217) is installed on two sides of the vertical side plate (212), the vertical sliding block (217) is strung on the vertical guide rail (216), the vertical guide rail (216) is installed on the vertical support (214), the side of the vertical support (214) is fixedly connected with the vertical back plate (218), and the caster, the caster wheel (213) presses on the outer edge of the cylindrical cam (215), the lower part of the cylindrical cam (215) is arranged on the top side of the bottom of the vertical back plate (218) through a thrust ball bearing, and the servo motor (219) is fixed on the bottom side of the bottom of the vertical back plate (218) and is connected with the cylindrical cam (215) through a coupler.
5. The lens-inspecting CCD camera angle-adjusting system according to claim 1, characterized in that: the lens displacement assembly (3) comprises an XY module (31) and a carrier in-out device (32), the bottom of the XY module (31) is installed on the top of the rack assembly (4), and the carrier in-out device (32) is installed on the XY module (31).
6. The lens-inspecting CCD camera angle-adjusting system according to claim 5, characterized in that: the XY module (31) comprises a Y-direction workbench (311), an X-direction workbench (312), a guide rail (313), a sliding block (314), a linear motor (315), a Y-axis limit stop (316) and an X-axis limit stop (317), wherein the bottom side of the Y-direction workbench (311) is fixedly connected with the top of the rack component (4), the guide rail (313) is arranged on two sides of the top of the Y-direction workbench (311), the sliding block (314) is arranged on the guide rail (313), the top of the sliding block (314) is fixedly connected with the X-direction workbench (312), the linear motor (315) is arranged on the inner sides of the two guide rails (313), the bottom of the linear motor (315) is fixedly connected with the top of the Y-direction workbench (311), the top of the linear motor is fixedly connected with the bottom side of the X-direction workbench (312), the Y-axis limit stop (316) is arranged on the upper surface of the Y-direction workbench, the other group of guide rails (313) are arranged on two sides of the X-direction workbench (312), the installation direction of the guide rails (313) arranged on the X-direction workbench (312) is vertical to the guide rails (313) arranged on the Y-direction workbench (311), the guide rails (313) arranged on the X-direction workbench (312) are also provided with sliding blocks (314), the tops of the sliding blocks (314) arranged on the guide rails (313) on the X-direction workbench (312) are fixedly connected with the bottom of the carrier in-out device (32), the linear motor (315) is also arranged in the middle of a guide rail (313) on the X-direction workbench (312), the bottom side of the linear motor (315) is tightly connected with the top of the X-direction workbench (312), the top of the linear motor (315) is tightly connected with the bottom of the carrier in-out device (32), the X-axis limit stop (317) is arranged at two ends of the linear motor (315).
7. The lens-inspecting CCD camera angle-adjusting system according to claim 5, characterized in that: the carrier in-out device (32) comprises a bottom plate (321), a support column (322), a product upper cover plate (323), an in-out guide rail (324), an in-out sliding block (325), an in-out air cylinder (326), a sliding block mounting plate (327), a floating joint mounting plate (328), a carrier (329), a linear bearing (3210), a guide shaft (3211), a carrier support plate (3212) and a lifting air cylinder (3213), wherein the bottom side of the bottom plate (321) is fixedly connected with the upper surface of the sliding block (314) and the upper surface of the linear motor (315), the bottom of the support column (322) is fixedly connected with the top of the bottom plate (321), the top of the support column (322) is fixedly connected with the bottom of the product upper cover plate (323), the in-out guide rails (324) are installed on two sides of the upper surface of the bottom plate (321), the in-out sliding block (325) is installed on, the side edge of the sliding block mounting plate (327) is fixedly connected with a floating joint mounting plate (328), a hole is formed in the sliding block mounting plate (327), a linear bearing (3210) is installed in the hole, the guide shaft (3211) is installed in the linear bearing (3210), the top of the guide shaft (3211) is fixedly connected with the bottom of a carrier mounting plate (3212), the in-and-out air cylinder (326) is installed on the upper side of the base plate (321), the floating joint at the front end of the in-and-out air cylinder (326) is fixed on the floating joint mounting plate (328), the side edge of the lifting air cylinder (3213) is fixedly connected with the sliding block mounting plate (327), the floating joint at the top of the lifting air cylinder (3213) is fixed on the carrier mounting plate (3212), and the carrier (329) is placed on the carrier mounting.
8. The adjusting method of a CCD camera angle adjusting system for lens inspection according to claim 4, comprising the steps of:
step 1, conveying the lens to the position below the camera by the lens displacement assembly (3)
Step 2, the camera performs synchronous beat motion in three directions under the control of the camera adjusting component (2), the camera is controlled by the adjusting module (21) in the X direction, the Z direction is controlled by the rotation (215) of the cylindrical cam, the deflection angle is controlled by the rotation of the swing rod (211) to drive the driving gear (28), and the camera can realize rotary motion around the lens through the synchronous beat motion in the three directions
And 3, the camera is always vertical to the tangential direction of the surface of the lens when rotating, a plurality of pictures shot by the camera are intercepted, the central parts of the pictures are combined into a complete upper surface projection picture of the lens, and the projection picture is compared with the template picture.
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| CN112903719B (en) | 2022-12-06 |
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