Embodiment
Refer to Fig. 1, the flatness checking device 500 of a preferred embodiment of the present invention is used to the miniature workpiece detection plane degree of electronic installation.Described electronic installation can be mobile phone, panel computer, personal digital assistant (Personal Digital Assistant, PDA), MP3 and MP4 etc.
Described flatness checking device 500 comprises measures assembly 100 and Control Component 200.This measurement assembly 100 is arranged on this Control Component 200 and is mutually electrically connected, and this measurement assembly 100 is for carrying and the flatness of measuring workpieces, and the data of measurement are delivered to this Control Component 200.This Control Component 200 is for setting examination criteria, analyze this measurement data and judging whether the flatness of workpiece meets examination criteria.
Refer to Fig. 2, described measurement assembly 100 comprises that base 10, carrying platform 20, outer fixed block 30, interior fixed block 40, optical transceiver 50 and fixture 60(are shown in Fig. 5).
See also Fig. 2 and Fig. 3, described base 10 comprises web joint 12 and support member 14.The rectangular bulk of this web joint 12, it is fixedly arranged on the top of this Control Component 200.The quantity of this support member 14 is four, and interval is laid in the top of this web joint 12, for support bearing platform 20.These four support members 14 are contour, guarantee the level of carrying platform 20.
See also Fig. 5, described fixture 60 is fixedly arranged on this web joint 12, and its interval longitudinally connects and offers multiple fixed orifices 62, for the corresponding fixing multiple optical transceivers 50 of difference, to prevent that optical transceiver 50 is offset up and down.In the present embodiment, this fixture 60 can be a block rubber.
The rectangular bulk of described carrying platform 20, it is fixedly arranged on this support member 14, for carrying workpiece to be measured thereon.The upper surface of this carrying platform 20 is smooth surface, for making workpiece end face to be measured have the reference plane of relatively flat in the time carrying workpiece.Spaced apart multiple locating slots 22 and the multiple pilot hole 24 of being provided with also on this carrying platform 20.The plurality of locating slot 22 is for being connected with described outer fixed block 30 and interior fixed block 40, to fix outer fixed block 30 and interior fixed block 40 in the top of carrying platform 20.The plurality of pilot hole 24 is respectively one by one corresponding to the plurality of fixed orifice 62, for fixing respectively multiple optical transceivers 50, to prevent optical transceiver 50 left and right skews.
Described optical transceiver 50 is arranged in base 10, fixture 60 and carrying platform 20 successively, and optical transceiver 50 one end parts are convexly set on this carrying platform 20, and the other end penetrates Control Component 200 and is electrically connected with Control Component 200.In the present embodiment, the quantity of described optical transceiver 50 is eight, and each optical transceiver 50 includes corresponding respectively light transmitting terminal 52 and optical receiving end 54.In the time detecting the flatness of workpiece, on carrying platform 20, carry a workpiece, this workpiece end face to be measured fits in this carrying platform 20.The plurality of optical transceiver 50 is respectively to multiple positions that should workpiece end face to be measured.If the end face of workpiece does not flush, between the end face of workpiece and carrying platform 20, there is space.Now, light transmitting terminal 52 to optical transceiver 50 that should space and optical receiving end 54 can be by position, the end face to be measured place partial occlusions of workpiece, according to the variation of the area being blocked between this light transmitting terminal 52 and optical receiving end 54, the luminous flux that optical receiving end 54 receives the laser that light transmitting terminal 52 launches also changes thereupon, thereby detects workpiece end face flatness everywhere.
Described outer fixed block 30 is covered on the upper surface of this carrying platform 20.This outer fixed block 30 is hollow, rectangular bulk, and its middle part offers the through hole 32 of one " ten " font, for the workpiece to be measured that leads.The madial wall of this through hole 32 is concaved with respectively multiple accommodation holes 34, and the plurality of accommodation hole 34 is intervally arranged on the madial wall of this through hole 32.The plurality of accommodation hole 34 corresponding part of accommodating multiple optical receiving ends 54 and protrude from carrying platform 20 one by one respectively, for the protection of multiple optical receiving ends 54.Four drift angles of this outer fixed block 30 respectively offer a pilot hole 36, when this outer fixed block 30 covers on this carrying platform 20 time, pass this pilot hole 36 and locating slot 22 by web member (not shown) such as screws, so that outer fixed block 30 is stable on this carrying platform 20.
The rectangular bulk of described interior fixed block 40, it is covered on the upper surface of this carrying platform 20, and is contained in the through hole 32 of this outer fixed block 30, for guide-localization workpiece to be measured.When the interior fixed block 40 of rectangle is contained in this criss-cross through hole 32 when interior, these interior fixed block 40 both sides form two and pick and place groove 38, this picks and places the space of groove 38 for not covered by interior fixed block 40 in through hole 32, picks and places workpiece in this interior fixed block 40 for handled easily person or operating instrument.This interior fixed block 40 is suitable with the physical dimension of workpiece to be measured, and it comprises having certain thickness sidewall 42.Each sidewall 42 all caves inward and forms multiple accommodation holes 44, and the plurality of accommodation hole 44 is intervally arranged on four sidewalls of this interior fixed block 40.Accommodation hole 44 in each on fixed block 40 is all corresponding to the accommodation hole 34 on this outer fixed block 30.The plurality of accommodation hole 44 corresponding part of accommodating multiple smooth transmitting terminals 52 and protrude from carrying platform 20 one by one respectively, for the protection of multiple smooth transmitting terminals 52.The opposite end of this interior fixed block 40 also offers pilot hole 46, when this interior fixed block 40 covers on this carrying platform 20 time, pass this pilot hole 46 and locating slot 22 by web member (not shown) such as screws, so that interior fixed block 40 is stable on this carrying platform 20.
Described Control Component 200 at least comprises a controlled processing unit (not shown), and for being electrically connected this optical transceiver 50, this Control Component 200 also can be electrically connected a computing machine (not shown) and display (not shown).This Control Component 200 draws corresponding luminous flux numerical value according to the signal receiving from this optical receiving end 54, and reads for operator being shown in after data processing on display by computing machine.This controlled processing unit is set a numerical range, and this numerical range is to detect the permissible error scope of planeness of workpiece.The luminous flux numerical value that this controlled processing unit comparison receives from each optical receiving end 54 and this numerical range judge whether workpiece for measurement flatness meets examination criteria.In the time that one or more luminous flux numerical value is not in this numerical range, workpiece for measurement flatness does not meet examination criteria.This Control Component 200 also comprises indicator 220, and the quantity of this indicator 220 is two, is respectively used to indication passing through or not passing through when time result of detection.
See also Fig. 3 and Fig. 4, while detecting the flatness of end face of the perisporium 340 of a workpiece 300, need this workpiece 300 to be installed on this flatness checking device 500.The rectangular groove shape of this workpiece 300, also comprises diapire 320, and perisporium 340 is vertically stretched out and forms by diapire 320 surroundings, and perisporium 340 surrounds a spatial accommodation 302 with diapire 320.
See also Fig. 5, the end face of the perisporium of workpiece 300 340 is installed towards this carrying platform 20, and this workpiece 300 is covered on this interior fixed block 40, and accommodate this interior fixed block 40 in this spatial accommodation 302.Now, perisporium 340 conforms to the sidewall 42 of this interior fixed block 40.If the flatness of the end face of perisporium 340 has deviation, the upper surface of the end face of perisporium 340 and carrying platform 20 is formed with space 80.Multiple optical transceivers 50 are distributed in multiple positions of this perisporium 340, multiple smooth transmitting terminal 52 Emission Lasers, and light transmitting terminal 52 transmitting terminal laser laser corresponding to position that are formed with space 80 are received by corresponding optical receiving end 54 respectively through space is after 80s.Corresponding numerical value is analyzed and obtained to the luminous flux that this controlled processing unit receives according to each optical receiving end 54.If the luminous flux numerical value that an optical transceiver 50 records is in default numerical range, the position that this optical transceiver 50 is measured these workpiece 300 correspondences meets examination criteria; If the luminous flux numerical value that an optical transceiver 50 records is not in default numerical range, the position that this optical transceiver 50 is measured these workpiece 300 correspondences does not meet examination criteria.
Particularly, in the time that the testing result of an optical transceiver 50 meets predetermined examination criteria, can on display, show that the detection at this place meets standard, with a kind of color state mark; In the time not meeting predetermined examination criteria, with another kind of color state mark.In the time that the testing result of these eight optical transceivers 50 all meets predetermined examination criteria, this controlled processing unit judges that the flatness detection of this workpiece 300 meets standard, and the indicator 220 now passing through for label detection is bright; In the time having the testing result of one or more optical transceiver 50 not meet predetermined examination criteria, this controlled processing unit judges that the flatness detection of this workpiece 300 does not meet standard, and the indicator 220 now not passing through for label detection is bright.
Flatness checking device 500 of the present invention respectively interval arranges multiple optical transceivers 50 in multiple positions of the perisporium 340 of workpiece 300 to be detected, the luminous flux passing through by the gap 80 between end face and the carrying platform 20 of measurement perisporium 340, and judge whether luminous flux numerical value meets predetermined numerical range, to judge the flatness of this workpiece 300.The accuracy of detection of this flatness checking device 500 is higher, and the concrete outcome that operator can visual inspection, easy to use and save manpower and time.