CN1525143A - Equipment and method for screening work pieces by inspecting results - Google Patents

Equipment and method for screening work pieces by inspecting results Download PDF

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Publication number
CN1525143A
CN1525143A CNA2004100059463A CN200410005946A CN1525143A CN 1525143 A CN1525143 A CN 1525143A CN A2004100059463 A CNA2004100059463 A CN A2004100059463A CN 200410005946 A CN200410005946 A CN 200410005946A CN 1525143 A CN1525143 A CN 1525143A
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China
Prior art keywords
workpiece
screening
space
transmission
unit
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Granted
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CNA2004100059463A
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Chinese (zh)
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CN1278101C (en
Inventor
Ҳ
原卓也
石井彻
伊藤猛
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Yamaha Fine Technologies Co Ltd
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Yamaha Fine Technologies Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02Adaptations of individual rollers and supports therefor
    • B65G39/09Arrangements of bearing or sealing means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • B07C5/342Sorting according to other particular properties according to optical properties, e.g. colour
    • B07C5/3422Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02Measures preceding sorting, e.g. arranging articles in a stream orientating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00Roller-ways
    • B65G13/02Roller-ways having driven rollers
    • B65G13/06Roller driving means
    • B65G13/071Roller driving means with frictional engagement

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)
  • Sorting Of Articles (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

A workpiece screening apparatus(40) comprises an discharge chute(33), a transferring table(42), a screening table(43), and at least one ventilation devices. An experiment-completed workpiece is screened by an experimental device(30). Plural workpiece retaining spaces are placed on the transferring table at a specific pitch in the circumferential direction. A leap-preventing wall is placed between the discharge chute and the workpiece retaining spaces. When the transferring table rotates, the workpieces continuously transferred through the discharge chute are independently and forcedly fallen to the workpiece retaining spaces. The workpieces are discharged to a corresponding box.

Description

Be used for equipment and method according to check result screening workpiece
Technical field
The present invention relates to equipment and method that check result that a kind of basis made by checkout facility is screened workpiece.
The application requires the right of priority of Japanese patent application 2003-46894 number, and this application is incorporated herein by reference.
Background technology
Traditionally, use the image processing equipment of ccd video camera (wherein, CCD represents charge-coupled image sensor) to be used to the outward appearance of various workpiece is checked all chips that comprises capacitor and inductor that is used for various electronic installations in this way of these workpiece.The checkout facility of this inspection workpiece outward appearance is equipped with screening (or select or classification) equipment, is used for according to check result checked workpiece being divided into certified products and defect ware, and the example of this equipment is open in Japanese patent application 2002-48725 number.That is to say, this screening installation is worked as follows, the workpiece that to be its outward appearance checked by ccd video camera comprehensively is sent to the outer peripheral portion of the upper surface of rotary table via the transmission path that extends in the inclination mode downwards, and wherein workpiece is along with the rotary table rotation and move rotationally on rotary table.At this, each workpiece according to it check result and arranged to assigned position by means of discharger, wherein discharger causes air to blow to workpiece.
Yet, there are the following problems for above-mentioned screening installation, that is: when workpiece is sent on the rotary table, it may drop from rotary table undesirably, perhaps it may roll on worktable or rotate (trundle), and can not accurately be arranged on the assigned position place on the rotary table.This causes difficulty in the work of classifying according to check result.
Summary of the invention
The purpose of this invention is to provide a kind of the screening equipment and method of the workpiece of (inspection-completed) on inspection of being used for, can workpiece be classified reliably and accurately be sent to the assigned position place according to check result.
Workpiece screening installation of the present invention consists essentially of the ramp (slope way) of an inclination, a transmission unit (for example, the transmission worktable), and deliverying unit, wherein the ramp of this inclination is used for transmitting successively the workpiece of " on inspection ", a plurality ofly be used for the temporary transient workpiece that keeps the workpiece that transmits successively from the ramp and keep the space to be arranged in transmission unit therebetween with the interval of the regulation that had, so that workpiece is transmitted successively, and this transmission unit provides the barrier of beating, be used to stop workpiece to keep the place, fixed position between the space to beat, and deliverying unit is used for according to being discharged into the regulation drain position from each workpiece that transmission unit is sent to this by check result that inspection unit produced in ramp and workpiece.
That is to say that the workpiece that has checked keeps the space via the workpiece that the ramp advances to transmission unit, then, workpiece further is transmitted and is discharged from.In addition, the present invention is characterised in that the workpiece at ramp and transmission unit keeps providing the barrier of beating between the space, so that stop workpiece to be beated toward the outer side undesirably.
Therefore, even when workpiece is transported suddenly from the ramp, also the reliable workpiece that also remains on safely of workpiece can be kept in the space, and can not cause workpiece to jump to the outside.Workpiece is transmitted by transmission unit, and then according to the drain position place that the check result of workpiece is discharged into workpiece by deliverying unit regulation.Thereby, can between certified products and defect ware, classify reliably and distinguish workpiece.Preferably, each workpiece keeps the area of bottom, space to be enough to keep therein an independent workpiece.
In the said equipment, a secondary transport part (for example screening workbench) can be provided, this secondary transport partly comprises the flat that is used to receive to its workpiece that advances, by this secondary transport part, workpiece can be sent to the drain position place of regulation, wherein, transmission unit is installed in the hollow space of housing, so that workpiece keeps the space to be enclosed between the peripheral side wall and diapire of hollow space, and the diapire of hollow space is set to contour with the upper surface of secondary transport part basically.At this, form the opening of the peripheral side wall of a partial cut hollow space, and this opening just in time is positioned at the upper surface top of secondary transport unit.
According to said structure, can smooth-going ground conveying work pieces, wherein workpiece is sent to transmission unit successively via the ramp transmission, and transmits to the secondary transport unit.At this, preferably the diapire of housing hollow space and the upper surface of secondary transport unit are in height mated; In addition, the diapire of hollow space can be arranged to be higher than a little the upper surface of secondary transport unit.Thereby, can prevent workpiece position deviation undesirably, and prevent that workpiece from rolling; And can workpiece be transmitted to the secondary transport unit reliably with suitable position.
In addition, between the periphery surface of the side surface of transmission unit and hollow space, arrange a gap, in other words, workpiece keep the opening in space and the part of the transmission unit that is used to make workpiece advance to the secondary transport unit between arrange a gap, workpiece might rotate and be trapped between transmission unit and the housing along with the transmission unit experience thus.Because above-mentioned gap is provided, transmission unit can carry out smooth-going rotation, and does not directly contact with the periphery surface of housing hollow space.
In addition, be furnished with the discharge channel that allows workpiece to overflow in the downstream of the transmission unit that rotates with respect to the secondary transport unit, can be discharged to the outside safely via discharge channel so that fail to be sent to the workpiece of secondary transport unit.
In the said equipment, fail workpiece is sent to the secondary transport unit at transmission unit and make workpiece still be trapped in workpiece to keep safely workpiece to be discharged to the outside via discharge channel under the situation in the space.That is to say, avoid failing to be sent to the secondary transport unit and still be trapped in workpiece keeping the workpiece in the space to stop that another workpiece of newly coming in from the ramp enters into the situation that workpiece keeps the space, and avoid a plurality of workpiece to enter the situation that same workpiece keeps the space mistakenly.Thereby, can avoid taking place putting in order the check result that causes not according to the incompatible situation that puts in order and produce successively of workpiece owing to fail to distinguish workpiece.
In addition, transmission unit and secondary transport unit match each other at the relative moving speed at the assigned position place that they intersect; And deliverying unit can be discharged the workpiece that is sent to this place from the secondary transport unit.That is, workpiece is being positioned at the position in the transmission unit and is guaranteeing essentially identical relative moving speed in the position that workpiece is received in the secondary transport unit.Thereby, can without difficulty workpiece be sent to secondary transport unit (that is, being sent to screening workbench from the transmission worktable) from transmission unit smooth-goingly.
Workpiece screening technique of the present invention consists essentially of three steps: promptly, first transmitting step is used for transmitting on inspection workpiece successively via the ramp; Second transmitting step, being used for being placed into independently from the workpiece that transmit successively in the ramp a plurality of workpiece keeps in the space, these workpiece keep the space to locate successively near the ramp, and with being spaced of the regulation that had therebetween, and each workpiece keeps space to be associated from the barrier of beating outside wherein jumping to stoping workpiece; And the discharge step, be used for each workpiece is discharged at the assigned position place according to its check result.
According to the workpiece screening technique, each workpiece that advances to transmission unit from the ramp successively can be kept in space by reliable each workpiece that also remains in safely, and can desirably jump to the outside of transmission unit; Therefore, each workpiece can be transmitted by transmission unit reliably, and in the screening of deliverying unit experience.
In the said equipment, it is characterized in that transmission unit moves the time interval that keeps the corresponding interlude section in space to be configured to advance from the ramp than each workpiece with a workpiece and lacks.That is to say that keep centre position between the space even be sent to adjacent workpieces from the ramp at next workpiece, next workpiece keeps the space to come at once, with safely with the workpiece reception within it.Thereby, can avoid workpiece can not be maintained at workpiece reliably and keep situation in the space, and a plurality of workpiece is remained in same workpiece mistakenly and is kept situation in the space.That is, can prevent that workpiece from jumping to the outside of transmission unit, and, therefore can avoid when the differentiation workpiece puts in order, breaking down owing to can prevent reliably that a plurality of workpiece from being remained in same workpiece mistakenly and keeping in the space.
Description of drawings
Below with reference to accompanying drawings, describe these and other purposes of the present invention, aspect and embodiment in detail, wherein:
Fig. 1 is the front view that the appearance detection device that is equipped with the screening unit according to the preferred embodiment of the invention is shown;
Fig. 2 is the planimetric map that the screening unit is shown;
Fig. 3 is the side view that the screening unit is shown;
Fig. 4 A illustrates to have the planimetric map of the housing of the hollow space of constant transmissions worktable therein;
Fig. 4 B is the cross-sectional view of A-A ' intercepting along the line in Fig. 4 A;
Fig. 5 is the skeleton view that the workpiece of experience inspection and screening is shown; And
Fig. 6 is a cross-sectional view, and the inner structure of the screening unit relevant with workpiece shown in Figure 1 is shown.
Embodiment
Below, with reference to accompanying drawing by means of the present invention of example more detailed description.
Fig. 1 is the front view that the appearance detection device 10 that is equipped with screening unit 40 according to the preferred embodiment of the invention is shown.The bottom of appearance detection device 10 is made of substrate 12, and these substrate 12 side's of having plate shapes are laid guide rail 11 on it.Workpiece supply unit 20, inspection unit 30 and screening unit 40 are arranged on the upper surface of substrate 12, so that their position can be along guide rail 11 free adjustment on the left and right directions of Fig. 1.
The bottom of Workpiece supply unit 20 is made of movable support bracket 21, and this movable support bracket 21 engages with guide rail 11, thus, by move this movable support bracket 21 along guide rail 11, Workpiece supply unit 20 can be set in any position in the substrate 12.In addition, movable support bracket 21 can be regulated with three-dimensional localization by the set screw (not shown), make this movable support bracket 21 vertically to move up and down, and can move forward and backward (wherein, front side be designated as forwards to) along direction perpendicular to the paper of Fig. 1.Vibration machine 22 with motor is attached on the upper surface of movable support bracket 21.Be used for the feeder 23 that workpiece 15 (see figure 5)s are sent to inspection unit 30 is appended to the upper surface of vibration machine 22.The terminal part of feeder 23 is outstanding, and towards inspection unit 30 elongations.
The hopper 24 that is used for temporary transient fixation workpiece 15 is arranged in feeder 23, and is used for being arranged in the office, a bottom of hopper 24 at the supply skewed slot 25 that the fixing workpiece 15 of hopper 24 supply to feeder 23.That is, at hopper 24 just with workpiece 15 when feeder 23 is supplied with, under vibration machine 23 driven situations, feeder 23 is vibrated, and makes workpiece 15 move to inspection unit 30.Thereby, a series of workpiece line spread, and move to the end portion of feeder 23 successively.
Inspection unit 30 is installed in the appearance detection device 10, and the main body of feasible this equipment that is used to check is arranged in the upper surface of movable support bracket 31, and wherein movable support bracket engages with guide rail 11 and can be fixed on the optional position along the guide rail in the substrate 12 11.The upper lateral part of movable support bracket 31 is a little to the end portion bending of the feeder 23 of Workpiece supply unit 20.The base plate 32 of tabular shape is connected on the upper end of upper portion of movable support bracket 31, and its upper surface is tilted to feeder 23.The discharge skewed slot 33 that is used as the ramp (or slope) of the workpiece on inspection 15 that ejects self-check unit 30 is connected on the central area of base plate 32.In addition, transmission hole 34 forms the central area of passing base plate 32, so that the image of picked-up workpiece 15 lower surfaces.
Discharge skewed slot 33 and be connected on the circumferential section of transmission hole 34 of movable support bracket 31 1 sides, wherein, it is semicircular passage that the surface of discharging skewed slot 33 forms as same xsect.Be equipped with the cylindrical interconnection element 35 of various elements to workpiece 15 each side pickup images to be connected on the upper surface of base plate 32, wherein, this interconnection element 35 forms one with feeder 23 with discharge skewed slot 33 and be interconnected to together path.
Four ccd video camera 36a and 36b (in order to draw conveniently, only illustrate two video cameras among Fig. 1; Yet, in fact be provided with four video cameras) and arrange with the interval that equates between them that along periphery so that from each side of workpiece 15 workpiece 15 is made a video recording, wherein workpiece 15 falls from the end portion of feeder 23 around interconnection element 35.In addition, two ccd video camera 36c and 36d are arranged in the upside and the downside of interconnection element 35, so that with respect to the upper surface of workpiece 15 and the image of lower surface picked-up workpiece.That is, present embodiment is designed to the image of picked-up workpiece 15 on six sides.Certainly, present embodiment also can be modified to four ccd video camera 36a and 36b only is set, and realizes the inspection to 15 4 sides of workpiece thus.In addition, present embodiment can be modified to four ccd video camera 36a and 36b are combined with the extra ccd video camera of the image of upper surface that is used for absorbing workpiece 15 or lower surface, thereby realizes the inspection to five sides of workpiece 15.
Catoptron 38a is arranged in the upper surface top of interconnection element 35 by support 37a.That is, ccd video camera 36c can absorb the image of workpiece 15 upper surfaces by means of the reflection of catoptron 38a.Similarly, catoptron 38b is arranged in below substrate 32 lower surfaces by support 37b, so that ccd video camera 36d can absorb the image of workpiece 15 lower surfaces by means of the reflection of catoptron 38b.
The screening unit 40 by the control device (not shown) based on ccd video camera 36a, 36b ... the image capture result who produces is controlled, so that it finishes the screening of workpiece 15.The details of screening unit 40 is wherein screened movable support bracket 41 and transmission worktable 42 and the screening of side thereon (or classification) worktable 43 that unit 40 is included in its downside shown in Fig. 1 to 3 and Fig. 6.Movable support bracket 41 engages with guide rail 11, makes this movable support bracket to regulate at substrate 12 enterprising line positions along guide rail 11.Specifically, movable support bracket 41 comprises driving mechanism 44 and driving mechanism 45, and driving mechanism 44 has the motor that is used for driving rotatably transmission worktable 42, and driving mechanism 45 has the motor that is used for driving rotatably screening workbench 43.
Transmission worktable 42 is installed in the housing 46, and housing is arranged in movable support bracket 41 upper surfaces on the terminal part of Workpiece supply unit 20 1 sides.Transmission worktable 42 comprises the rotary body of a gear-like, and this rotary body has tooth and recess 47, and tooth and recess 47 are with the interval of the regulation that had therebetween arranged alternate along the circumferential direction.The central shaft 48 of rotary body interconnects with the driving shaft 44a of the motor of driving mechanism 44, thereby when motor-driven, a (from the upside of the screening unit 40) rotation along clockwise direction of transmission worktable 42.At this, each recess 47 forms and makes its upstream side surface (sense of rotation along transmission worktable 42 is seen) extend along the diametric(al) of transmission worktable 42, and its downstream side surface tilts towards the downstream of transmission worktable 42.
Circular hollow space 49 is formed on the upper surface of housing 46, makes transmission worktable 42 leave in the hollow space 49 in rotatable mode.Workpiece keeps space 50 to be centered on by the peripheral side wall 49a of hollow space 49 and each recess 47 of bottom 49b (seeing Fig. 4 and Fig. 6) and transmission worktable 42, makes a plurality of workpiece that limited by recess 47 keep the space to be arranged in the hollow space 49 along peripheral direction around transmission worktable 42.At this, that part of area that is limited by each recess 47 among the 49b of bottom is set to much larger than the regulation area that holds a workpiece 15 therein.
The hole 46a that is communicated with the bottom of discharging skewed slot 33 is formed on an end place of housing 46.That is, discharge of inboard (that is, workpiece keep the inboard in the space 50) connection of the chute of skewed slot 33 via hole 46a and hollow space 49.Incidentally, the peripheral side wall 49a of hollow space 49 and transmission worktable 42 are set at predetermined altitude respectively or are set to higher position, run out of from the workpiece 15 of discharging skewed slot 33 discharges so that prevent from reliably to be forced to suddenly.This has constituted the barrier of beating, and is used for stoping workpiece 15 to jump out undesirably.
For example, when workpiece 15 had the size that is defined as 1mm * 0.5mm * 0.5mm, preferably, the height of the height of the peripheral side wall 49a of hollow space 49, transmission worktable 42 all was set to 20mm or bigger.In addition, shown in Fig. 4 B and 6, will transmit worktable 42 and be arranged in the hollow space 49, leave gap 49d, thereby prevent that workpiece 15 is stuck in unintentionally between housing 46 and this transmission worktable 42 apart from peripheral side wall 49a; Particularly, near with the periphery of the hollow space 49 that is associated of transmission worktable 42, form described gap 49d in the precalculated position that is connected with hole 46a, wherein said transmission worktable 42 rotates along direction a, thereby transmit described workpiece 15 towards screening workbench 43, conveying work pieces 15 can prevent from unexpectedly to occur between housing 46 and transmission worktable 42 stuck reliably like this.Gap 49d is corresponding to being formed on the peripheral side wall 49a in the zone near the part of hole 46a at least; Particularly, gap 49d from the described at least part near hole 46a to zone, be formed on the peripheral side wall 49a along direction a near the part of screening workbench 43.In this case, preferably, the height setting of measuring between the lower end with the bottom 49b of hollow space 49 and gap 49d is 8mm or bigger.
As shown in Figure 4, the opposite part of arranging with respect to screening workbench 43 among the bottom 49b of hollow space 49 is cut into arc, and wherein, transmission worktable 42 parts are outstanding from bottom 49b, and therefore are positioned on the screening workbench 43.In addition, discharge channel 49c is formed on the downstream of the sense of rotation of transmission worktable 42 along the periphery that cuts part of bottom 49b, wherein this discharge channel 49c is used as the part (or by-passing part) of overflowing in the present invention, and the end portion of this discharge channel is located (seeing left part among Fig. 4) downwards.In addition, be used to regain in the workpiece that discharge channel 49c is sent to the workpiece 15 at this place regains the bottom that the part (not shown) is arranged in discharge channel 49c.Therefore, when workpiece 15 is carried under the situation of transmitting worktable 42 rotation under driving mechanism 44 drives simultaneously through discharging skewed slot 33, workpiece 15 is introduced into workpiece via hole 46a and keeps in the space 51, and along with the rotation of transmission worktable 42 is moved on the 49b of the bottom of hollow space 49 rotatably.
Screening workbench 43 is interconnected on the driving shaft 45a of driving mechanism 45 via its central shaft 51, the upper surface of screening workbench 43 is compared with the bottom 49b of hollow space 49 highly and to be descended, thus screening workbench 43 since its outer peripheral portion be complementary with the cut-away branch of hollow space 49 bottom 49b basically and rotate along direction of arrow b (i.e. the counter clockwise direction of seeing from Fig. 2 upside).Workpiece receiving unit 43a is arranged in the peripheral part on screening workbench 43 upper surfaces, so that receive the workpiece 15 that is just being transmitted by transmission worktable 42.Workpiece receiving unit 43a is made by rubber slab, to prevent workpiece 15 landing from it.
Position detection sensor 52 is arranged in the assigned position place of screening workbench 43 tops near transmission worktable 42, so that survey the workpiece 15 that just is being sent on the screening workbench 43.In addition, four air tapping equipment 53a, 53b, 53c and 53d are arranged in the screening workbench 43 on the outer peripheral portion relative with transmission worktable 42 with the predetermined distance that is had therebetween, and arrange along this outer peripheral portion.In addition, certified products storage box and defect ware memory block (not shown) be arranged in the screening workbench 43 with the vertically opposite terminal part of air tapping equipment 53a, 53b, 53c and 53d under.
Screening workbench 43 receives the workpiece 15 that is sent to this place by transmission worktable 42 successively, so that workpiece 15 along peripheral direction is arranged in the upper surface of workpiece receiving unit 43a on the spacing of stipulating therebetween; Then, workpiece is sent to respectively in the above-mentioned box.Specifically, when workpiece 15 based on produce by inspection unit 30 it check result and when being characterized as certified products, start for example air tapping equipment 53a, thereby, workpiece 15 is blown out and enters in the certified products storage box along with workpiece 15 process certified products storage boxes.When workpiece 15 is characterized as defect ware, starts for example air tapping equipment 53b, thereby, workpiece is blown out and enters in the defect ware storage box along with workpiece 15 process defect ware storage boxes.Thus, can distinguish workpiece 15 between certified products and defect ware, this workpiece accurately is sent to respectively in certified products storage box and the defect ware storage box.Other air tapping equipment 53c and 53d are suitably started, and enter in the corresponding box so that according to the grade of defective and type workpiece is blown out.
Except above-mentioned electro-mechanical parts, appearance detection device 10 also comprises electronic-controlled installation, as CPU, ROM and RAM and comprise that ccd video camera is (for example, 36a) at interior image processing apparatus.Image processing apparatus is to (for example, 36a) She Qu image carries out Flame Image Process, thereby distinguishes workpiece 15 between certified products and defect ware by ccd video camera.In addition, image processing apparatus is equipped with display screen, is used for amplifying and showing six sides (or hexagonal structure) of each workpiece 15, and therefore, the human manipulation person can observe image, and coming visual determination workpiece 15 is certified products or defect ware.
Then, will provide the description that utilizes 10 pairs of visual examinations of above-mentioned appearance detection device and screening, all capacitor chips in this way of this workpiece at the example of workpiece 15 (see figure 5)s of examine.Before checking, workpiece 15 is maintained in the hopper 24 of Workpiece supply unit 20 in advance; Then, the power switch (not shown) conducting of appearance detection device 10, thus above-mentioned each unit and device are activated respectively, thus carry out their predetermined operation.In Workpiece supply unit 20, the workpiece 15 of specified quantity is provided to feeder 23 from hopper 24 via supplying with skewed slot 25.
Each workpiece 15 of supplying with feeder 23 advances to the end portion of feeder 23 when driving vibration machine 22, thereby workpiece is discharged into the space from the end portion of feeder 23.Along with workpiece 15 passes the core of interconnection element 35 and drops, ccd video camera 36a photographs image (photographing image) thus to 36d each side pickup image with respect to workpiece 15.Based on the relevant image in 15 6 sides of workpiece, image processing apparatus work distinguishes that workpiece 15 is certified products or defect ware.Distinguish be with the workpiece 15 of " by taking pictures " and specified standard externally size, dust, crackle and adhering on the basis of comparing aspect the exotic matter on it carry out.In this case, absorb " amplification " image with respect to 15 6 sides of workpiece and be presented on the screen of image processing apparatus, therefore, the human manipulation person can observe the defective on workpiece 15 any parts.
Make the workpiece of distinguishing 15 and drop in the discharging skewed slot 33 between certified products and defect ware, along this skewed slot, workpiece descends, and drops in the workpiece maintenance space 50 of screening unit 40 by hole 46a then.Owing to keep space 50 to form the barrier of beating, even under workpiece 15 drops situation in workpiece keeps space 50 suddenly, also can reliably workpiece be set in the workpiece maintenance space 50 around workpiece.After this, workpiece 15 is transmitted to screening workbench 43 by transmission worktable 42.
In the said equipment, the speed setting of transmission worktable 42 becomes to make that the time period at intervals of transmission worktable 42 rotations (keeping space 50 corresponding to a workpiece) is shorter from the time interval that discharging skewed slot 33 transmits than each workpiece 15.Thereby, can prevent that a plurality of workpiece are placed into a workpiece and keep in the space 50; That is to say that can reliably an independent workpiece 15 be placed into each workpiece and keep in the space 50, this workpiece keeps the space to be occupied and empty on demand thus.
When workpiece 15 rotates along with transmission worktable 42 and when being sent in the hollow space 49 the specified part office relative with screening workbench 43 with being rotated, owing to have the above-mentioned part that cuts among the hollow space 49 bottom 49b, workpiece 15 drops on the upper surface of screening workbench 43 naturally, and transmits along with the rotation of screening workbench 43 then with being rotated.At this, the upper surface of screening workbench 43 is compared with the bottom 49b of hollow space 49 highly and is descended, therefore, and can be from transmission worktable 42 to screening workbench 43 smooth-going ground conveying work pieces 15.
The assigned position place that transmission worktable 42 and screening workbench 43 intersect in hollow space 49, the opening direction of the above-mentioned recess 47 of transmission worktable 42 is complementary with the direction that relatively moves of the screening workbench 43 of conveying work pieces 15 wherein basically; Therefore, can be reliably and carry out the transmission work of workpiece 15 fully.In this case, the two transmit transmission worktable 42 and screening workbench 43 worktable 42 and screening workbench 43 crossing assigned position places and has substantially the same rotating speed in hollow space 49, incidentally, when transmission worktable 42 failed to be sent to workpiece 15 on the screening workbench 43 safely, workpiece 15 was overflowed to the workpiece recovery section via discharge channel 49c automatically.
Certified products near be sent to above-mentioned box successively by screening workbench 43 the workpiece 15 are correspondingly blown out towards the certified products storage box by air tapping equipment 53a, and defect ware is blown out to the defect ware storage box by air tapping equipment 53b.Thereby can be reliably and accurately between certified products and defect ware, distinguish workpiece 15, they are suitably classified and are transported in the corresponding box simultaneously.At this, supply to workpiece 15 transmission under position detection sensor 52 successively on screening workbench 43 upper surfaces, under this sensor 52, the position of workpiece is detected successively; Then, described workpiece is blown out by the air that air tapping equipment 53a is discharged.
In above-mentioned screening unit 40, workpiece 15 is on inspection temporarily remained on the workpiece that is limited by transmission worktable 42 and is kept in the space 15; Then, workpiece is sent on the screening workbench 43.In addition, in the path of discharging between skewed slot 33 and the workpiece maintenance space 50, be furnished with the barrier of beating, so that prevent that workpiece 15 is from wherein jumping out.Thereby, can prevent reliably that workpiece 15 from jumping to the outside undesirably along with workpiece 15 is sent on the transmission worktable 42 from discharging skewed slot 33; Therefore, workpiece 15 can also be remained in the Workpiece storage space 50 safely by reliable.
Present embodiment is designed so that the bottom 49b of hollow space 49 is set in the height place of the upper surface that mates screening workbench 43 basically, and transmission worktable 42 and screening workbench 43 the two set in transmission worktable 42 and screening workbench 43 crossing positions and have identical rotating speed substantially.In addition, the direction coupling that relatively moves of the screening workbench 43 that moves thereon with workpiece 15 basically in position that transmission worktable 42 and screening workbench 43 intersect of the opening direction of the recess 47 of transmission worktable 42.Therefore, can workpiece 15 be sent to screening workbench 43 from transmission worktable 42 smooth-goingly.As a result, can accurately between certified products and defect ware, workpiece 15 be classified.
Present embodiment is designed to provide two worktable, that is, transmission worktable 42 and screening workbench 43 still, can improve present embodiment, makes workpiece 15 by means of the directly screening (or Direct Classification) of transmission worktable 42 experience.In addition, present embodiment constitutes rotary table with screening workbench 43, but this is not necessary restriction.Therefore, can use linear conveyor,, and reduce because the influence that centrifugal force causes so that improve the classification speed of workpiece 15.In addition, can use linear conveyor to substitute transmission worktable 42, to guarantee the revolution of screening workbench 43.
Because under the prerequisite that does not deviate from marrow of the present invention or essential characteristic, the present invention can implement in a variety of forms, therefore, present embodiment is illustrative and nonrestrictive, because the present invention is defined by the appended claims, rather than limited by the description of front, therefore, all changes that fall in the equivalent of the border of claim and scope or this border and scope all should be contained by claim.

Claims (12)

1. workpiece screening installation comprises:
The ramp is used for transmitting successively a plurality of workpiece (15), has wherein finished inspection to workpiece by checkout facility (30);
Transmission unit (42), it is equipped with a plurality of workpiece to keep space (50), so that a plurality of workpiece that transmit successively via the ramp are maintained in described a plurality of workpiece maintenances space independently, wherein, keep the assigned position place between the space to be furnished with the barrier of beating in ramp and workpiece, so that stop each workpiece from wherein jumping to the outside; And
Deliverying unit (53a-53d) is used for the Work inspection device result that produces according to by checkout facility, automatically will discharge at regulation drain position place from a plurality of workpiece that transmission unit is sent to this.
2. workpiece screening installation as claimed in claim 1, wherein, a plurality of workpiece are along with a plurality of workpiece maintenances space is put in the rotation of transmission unit independently in turn, this transmission unit comprises secondary transport unit (43), this secondary transport unit has flat, this flat is used to receive a plurality of workpiece that are sent to this place, and be used for further the drain position of described a plurality of workpiece towards regulation being transmitted, and described transmission unit (42) is installed in the hollow space (49) of housing (46), keep space so that between the bottom of the peripheral side wall of hollow space and hollow space, limit each workpiece, and it is contour that wherein the upper surface of secondary transport unit is set the bottom of basic and hollow space for, and form an opening, peripheral side wall with local excision's hollow space, thereby be connected with the secondary transport unit, and the opening of hollow space just in time is arranged in the top of the upper surface of secondary transport unit.
3. workpiece screening installation as claimed in claim 2, wherein, between transmission unit and secondary transport unit with respect to described aperture arrangement one gap (49d), workpiece is sent to the secondary transport unit by this opening from transmission unit, prevents that thus workpiece from rotating and being stuck between transmission unit and the housing along with delivery unit.
4. as claim 2 or 3 described workpiece screening installations, wherein, in transmission unit, be furnished with and select passage (49c), with allow workpiece along with the rotation of transmission unit downstream side overflow, thereby the workpiece of failing to be sent to the secondary transport unit is discharged to the transmission unit outside.
5. as claim 2 or 3 described workpiece screening installations, wherein, transmission unit and secondary transport unit are set for and are being realized that the opening part that transmission unit and secondary transport unit are communicated with has essentially identical relative moving speed, thereby deliverying unit is only discharged the workpiece that is transferred to this place by means of the secondary transport unit.
6. as each described workpiece screening installation in the claim 1 to 3, wherein, transmission unit comprises transmission worktable (42), this transmission worktable has a plurality of recesses (47), these recesses are arranged on the peripheral direction of transmission worktable therebetween with the predetermined distance that has, thereby a plurality of workpiece keep the space to be limited by a plurality of recesses of transmission worktable, and the transmission worktable is installed in the hollow space of housing.
7. as each described workpiece screening installation in the claim 1 to 3, wherein, the secondary transport unit comprises screening workbench (43), the part of this screening workbench via the opening of housing be positioned at transmission unit near, so that a plurality of workpiece that transmitted successively by transmission unit are placed on the screening workbench outer peripheral portion, described a plurality of workpiece move rotatably by means of the drain position of this screening workbench to regulation.
8. as each described workpiece screening installation in the claim 1 to 3, wherein, deliverying unit comprises at least one air tapping equipment (53a), this air tapping equipment is with respect to the secondary transport arrangements of cells, so that will be discharged at the drain position place of regulation by the workpiece that the secondary transport unit transmits by starting the air tapping equipment.
9. a workpiece screening technique comprises the steps:
Transmit a plurality of workpiece (15) successively via the ramp, described workpiece is finished inspection by checkout facility (30);
Described a plurality of workpiece are placed into a plurality of workpiece to be kept in the space (50), this workpiece keeps space to arrange with predetermined distance therebetween, and be provided with and be used to prevent that workpiece is from wherein jumping to the barrier of beating in the outside, each workpiece keeps spatial movement and is communicated with the ramp, so that receive each workpiece from the ramp; And
According to the check result that produces by checkout facility,, discharge each in a plurality of workpiece of carrying by means of a plurality of workpiece maintenances space automatically at the drain position place of regulation.
10. workpiece screening technique as claimed in claim 9, wherein, the time interval weak point that a plurality of workpiece keep interlude section of spatial movement to transmit via the ramp than each workpiece.
11. workpiece screening technique as claimed in claim 9 also comprises the steps: further each in a plurality of workpiece that the drain position transmission of regulation is carried by means of a plurality of workpiece maintenances space.
12. workpiece screening technique as claimed in claim 9 wherein, is discharged each workpiece by means of air tapping equipment (53a) at the drain position place of regulation.
CNB2004100059463A 2003-02-25 2004-02-23 Equipment and method for screening work pieces by inspecting results Expired - Fee Related CN1278101C (en)

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JP046894/03 2003-02-25
JP2003046894A JP4243960B2 (en) 2003-02-25 2003-02-25 Work sorting apparatus and sorting method
JP046894/2003 2003-02-25

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CN1278101C CN1278101C (en) 2006-10-04

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US11175240B2 (en) 2017-09-25 2021-11-16 SCREEN Holdings Co., Ltd. Inspection apparatus and inspection method

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CN107243458A (en) * 2017-08-03 2017-10-13 合肥新士鑫机械科技有限公司 A kind of workpiece based on machinery rotation screens regulator control system
US11175240B2 (en) 2017-09-25 2021-11-16 SCREEN Holdings Co., Ltd. Inspection apparatus and inspection method

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KR20040076611A (en) 2004-09-01
TW200424514A (en) 2004-11-16
JP2004255253A (en) 2004-09-16
CN2802438Y (en) 2006-08-02
US20040195258A1 (en) 2004-10-07
KR100555093B1 (en) 2006-02-24
JP4243960B2 (en) 2009-03-25
CN1278101C (en) 2006-10-04

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