內(nèi)容案例講稿top case tp depth measurement.2-en2

1、Top Case TP Depth Measurement FixtureV1.2 2014-2-17 BroConcentric Automation 22 BroConcentric AutomationContentsProject Requirements and Machine Functions-P3-P4Machine Structure-P5-P8Main Modules-P9-P14Work Flow-P15-P20Cycle Time-P21Environment Requirements and Safety- P22The machine will have a nes

2、t for loading the Unit Under Test (UUT)The machine must have the ability to changeover for different product sizes (from MacBook Air 11”, MacBook Air 13”, MacBook Pro/Retina 13”,MacBook Pro/Retina 15” and product sizes in between including X261)The UUT will be loaded into the machine manually. Depen

3、ding on design, UUT (Top Case) can be loaded cosmetic side up or down.The machine must sense that the UUT is properly loadedThe machine must restrain the UUT during measurement operations but not such that it alters the measurement resultsBarcode scanner inside the machine to scan the UUT barcode an

4、d save with UUT measured resultsOptional hand held barcode scanner to record UUT serial number and save with UUT measured resultsNo cosmetic damage allowed to the UUTThe machine will have the ability to save recipes (recipes to include cosmetic specification revision and engineering build designatio

5、n along withdeviations for specific builds)Machine will store data for 30 days (including serial number, data results, time and date of results, pass / fail criteria)Data output template will be supplied in Excel formatMachine will store any measurement pictures/scans for 7 daysShopFloor (SF) tracki

6、ng - machine will support and hook into factory SF to track which units have passed or failedMachine will also support ethernet connection and data upload to Skynet。 BroConcentric Automation31.1 Project requirementsProject Requirements and Machine Functions BroConcentric Automation4The machine will

7、have a nest for loading the Unit Under Test (UUT)The machine must have the ability to changeover for different product sizes (from MacBook Air 11”, MacBook Air 13”, MacBook Pro/Retina 13”,MacBook Pro/Retina 15” and product sizes in between including X261)The machine will be able to measure more poin

8、ts (it will not influence the cycle time to measure added points)The machine will be able to calculate more results such as flatness based on the measured data.The UUT will be loaded into the machine manually. The machine must sense that the UUT is properly loadedThe machine must restrain the UUT du

9、ring measurement operations but not such that it alters the measurement resultsBarcode scanner inside the machine to scan the UUT barcode and save with UUT measured resultsOptional hand held barcode scanner to record UUT serial number and save with UUT measured resultsNo cosmetic damage allowed to t

10、he UUTThe machine will have the ability to save recipes (recipes to include cosmetic specification revision and engineering build designation along with deviations for specific builds)Machine will store data for 30 days (including serial number, data results, time and date of results, pass / fail cr

11、iteria)Data output template will be supplied in Excel formatMachine will store any measurement pictures/scans for 7 daysShopFloor (SF) tracking - machine will support and hook into factory SF to track which units have passed or failedMachine will also support ethernet connection and data upload to S

12、kynet。1.2 Machine functionsProject Requirements and Machine Functions 5 BroConcentric AutomationMachine dimension:1300mm1130mm1800mm2.1 Machine overviewMachine Structure BroConcentric Automation6The machine is composed of:X-Y direction linear motor module: To carry laser measurement system to scan t

13、he UUT.Laser measurement system: To scan the UUTs TP part to measure TC recess Z-height which also can be used to calculate the flatness.Granite table: To ensure the stability of the machine when its running.Damping mechanism: To isolate the fixture from the outside vibration.Nest: To locate the UUT

14、 and restrain it during the measurement. The location fixture guarantees that UUT will not be out of shape under the external clamping force.2.1 Machine overviewMachine Structure BroConcentric Automation7X-Y direction linear motor module: To carry laser measurement system to scan UUT.Nest: To locate

15、 UUT and restrain it during the measurement. The location fixture guarantees that UUT will not be out of shape under the external clamping force.Granite table: To ensure the stability of the machine when its running.Two 2D Laser systems: To scan UUTs TP part to measure TC Recess Z-height which can a

16、lso be used to calculate the flatness.The servo motor motion module: To carry the UUT to the measured position. 2.2 Machine structureMachine Structure BroConcentric Automation82.2 Machine structureMachine StructureX-Y direction linear motor module: To carry laser measurement system to measure UUT.Gr

17、anite table: To ensure the stability of the machine when its running.The servo motor motion module: To carry the UUT to the measured position. Nest: To locate UUT and restrain it during the measurement. The location fixture guarantees that UUT will not be out of shape under the external clamping for

18、ce.2-2D Laser system: To scan UUTs TP part to measure TC Recess Z-height which can also be used to calculate the flatness. BroConcentric Automation9The linear motor modules carry 2D laser system to measure the UUT.The linear motor modules could trigger 2D laser system to measure the UUT via the grat

19、ing scale at the rate of 1 pulse/m when they are moving continuously.2D laser scans the UUT continuously as the pulse from the grating scale triggers it, and then the measured data will be used to form a 3D image by the software.The computer processes the image and calculates the Z axis information

20、at the marked points in the SPEC.A pair of sets of Z-height information will provide the thickness information as compared with the calibrated value.X direction linear motorY direction linear motorMain Modules3.1 X-Y linear motor modules BroConcentric Automation10Y direction servo motor module: To c

21、arry UUT from the loading position to the measured position and vice versa.It will be convenient for the operator to load and unload UUT.Y direction servo motion moduleMain Modules3.2 Y direction servo motor module BroConcentric Automation11Gocator2020Data Points/Profile: 640Z resolution: 6 micons a

22、t 19mm FOVMeasurement Range: 3-25mmFOV: 19-26mm Linearity:0.02% MR = 0.005mm at 25mm MROver all precision: 0.006mmScan rate: upto 5K HZTwo 2D lasers:The two 2D lasers will be calibrated (to get the relative installing distance of Z axis) using calibration blocks with the certain thickness.The 3D ima

23、ge acquired by 2D laser system contains X-Y coordinates information. The software will collect Z-height at any specified positions.Main Modules3.3 Laser system BroConcentric Automation12The intersection point of TPs two edges could be used as the reference point to locate 16 measurement locations. T

24、he Z-height information at a specified location can be extracted by the software in this image according to the X-Y coordinates in the SPEC. The Z-height information acquiredby the 2D laser after scanning forms this image.Main Modules3.3 Laser systemA sample of TP image acquired by a 2D lasers senso

25、r. BroConcentric Automation13Location cylinderPOM location PinThe reference plate: It could be changed according to the products of different sizes, such as 11 inch, 13 inch, 15 inch. The pushing head of the cylinder equips with the spring to guarantee the pushing strength is certain. It will not ma

26、ke UUT out of shape to avoid the influence on the measurement results.POM supporting blocks: They contact UUT and will not damage the UUT surface. Its easy for change to keep level accuracy after a period of time of use.Main Modules3.4 Location fixture 14Vibration-proof system is composed of customi

27、zed marble platform and air spring suspension module.Granite Table: heavy weight, high flatness, would not affected by temperature and humidity changesVibration-proof system: automatic adjust levels, maintain the levelness of the whole platformGas spring system: the vibration efficiency more than 90

28、%, can reduce the vibration coming from the floor and equipment itself.Granite TableGas spring suspension system3.5 Granite table and gas spring suspension system BroConcentric AutomationMain Modules BroConcentric Automation15Work Flow BroConcentric Automation16Automation is homed.Machine(HMI) notif

29、ies the operator that it is safe to load.Work Flow4.1 Initial state BroConcentric Automation17Operator puts the UUT into the nest and presses start buttons. Work Flow4.2 Load BroConcentric Automation18Mistake-proofThe machine senses that the UUT is placed correctly.The nest restrains the UUT.The mac

30、hine reads the UUT barcode (there will be a reserved installing position for the code reader and the installing position to be chosen according to the final requirements).Y-axis servo motion module carries the UUT to the measured position.Work Flow4.3 Locating UUT and moving BroConcentric Automation

31、19Two 2D lasers driven by the linear motor move in the X-Y direction.2D lasers scan the TP zone and forms images using acquired Z-height information.The software extracts Z-height information from the images and calculates the thickness at specified locations.Work Flow4.4 Motion and laser measurement BroConcentric Automation20The machine stores data and displays result.Y axis servo motion mechanism carries UUT to the lo