CN107677950A - Fingerprint apparatus for testing chip and method of testing - Google Patents
Fingerprint apparatus for testing chip and method of testing Download PDFInfo
- Publication number
- CN107677950A CN107677950A CN201710752466.0A CN201710752466A CN107677950A CN 107677950 A CN107677950 A CN 107677950A CN 201710752466 A CN201710752466 A CN 201710752466A CN 107677950 A CN107677950 A CN 107677950A
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- China
- Prior art keywords
- test
- output signal
- prosthetic finger
- testing
- fingerprint
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
Abstract
The present invention relates to fingerprint chip testing field, it is therefore an objective to provides a kind of fingerprint apparatus for testing chip and method of testing.A kind of fingerprint apparatus for testing chip, including：Base, several transversely arranged test bench units on base, seat is vertically moved provided with crossbeam and longitudinal driving device and with base by what at least one longitudinal rail was slidably connected, the transverse shifting seat being slidably connected provided with lateral driver device and with crossbeam by cross slide way, on transverse shifting seat and number and test bench unit number identical prosthetic finger test cell, located at vertically moving on seat and number and test bench unit number identical output signal test cell；Output signal test cell and prosthetic finger test cell correspond on the upside of test bench unit and with test bench unit respectively.The fingerprint apparatus for testing chip testing efficiency and measuring accuracy are higher.
Description
Technical field
The present invention relates to fingerprint chip testing field, especially a kind of fingerprint chip pressing simulating test device and test side
Method.
Background technology
Fingerprint identification technology has obtained extensively in fields such as smart mobile phone, attendance recorder, safety door inhibition and port customs clearances
Using；The fingerprint recognition region that people refers to pressing fingerprint chip can produce electric signal, and electric signal, which is delivered to controller, can just enter stroke
Sequence identifies；The reliability of fingerprint chip performance is particularly significant to the stability for ensureing fingerprint identification device, using preceding needing
Performance testing, sorting is carried out to the pressing force of fingerprint chip and the current and voltage signals of output；The performance of traditional fingerprint chip
It is by manually being detected manually that test is mostly, testing efficiency and the relatively low deficiency of measuring accuracy be present；Therefore, design is a kind of surveys
Efficiency and the higher fingerprint apparatus for testing chip of measuring accuracy and method of testing are tried, turns into urgent problem to be solved.
The content of the invention
It is to rely on manually to be examined manually mostly the invention aims to the performance test for overcoming current fingerprint chip
Survey, testing efficiency and the relatively low deficiency of measuring accuracy be present, there is provided the higher fingerprint chip of a kind of testing efficiency and measuring accuracy
Test device and method of testing.
The present invention concrete technical scheme be：
A kind of fingerprint apparatus for testing chip, including：Base；Described fingerprint apparatus for testing chip also includes：On base
Several transversely arranged test bench units, pass through at least one longitudinal rail provided with crossbeam and longitudinal driving device and with base
What is be slidably connected vertically moves seat, the transverse shifting being slidably connected provided with lateral driver device and with crossbeam by cross slide way
Seat, on transverse shifting seat and number and test bench unit number identical prosthetic finger test cell, located at vertically moving seat
Upper and number and test bench unit number identical output signal test cell；Output signal test cell and prosthetic finger test are single
Member corresponds on the upside of test bench unit and with test bench unit respectively.The fingerprint apparatus for testing chip has multiple transmission
Station, longitudinal driving device driving crossbeam lengthwise movement, lateral driver device driving transverse shifting seat transverse movement, by doing evil through another person
Refer to test cell and output signal test cell to replace manually being detected manually, repeatability and stability height, testing efficiency with
Measuring accuracy is higher.
Preferably, described test bench unit includes：Upper end is provided with the test substrate of storage tank, is tested provided with supporting
The pressure sensor of substrate and the sensor holder being connected with base, it is provided with printed circuit pinboard and detachable with accommodating groove bottom
The fingerprint chip carrier of connection, the fingerprint chip located at the accommodating hole of fingerprint chip carrier upper end and in accommodating hole.Test bench list
The pressure sensor of member supports test substrate, and fingerprint chip carrier is provided with printed circuit pinboard, fingerprint chip is located at fingerprint core
It is compact-sized and be easy to test in the accommodating hole of bar upper end；The fingerprint chip carrier of test bench unit is according to tested fingerprint chip
Specification can be convenient for changing.
Preferably, described prosthetic finger test cell includes：The cylinder mounting seat being connected with transverse shifting seat, structure letter
Single compact, prosthetic finger tested cylinder being connected with cylinder mounting seat, the vacation that upper end is connected with the piston rod of prosthetic finger tested cylinder
Finger test adaptor block, it is connected with prosthetic finger test adaptor block and provided with the prosthetic finger of several adjustment screws vertically arranged
Test position fix plate, the adjusting bolt being threadedly coupled with an adjustment screw, both ends connect with transverse shifting seat and adjusting bolt respectively
The prosthetic finger test pressure spring connect, the prosthetic finger test vertical guide that upper end is connected with prosthetic finger test adaptor block, if provided with
Dry transversely arranged test prosthetic finger and the prosthetic finger measuring head being connected with prosthetic finger test vertical guide lower end；Prosthetic finger is surveyed
The sliding block of examination vertical guide is connected with transverse shifting seat；The compressed air inlet pipe road connected with prosthetic finger tested cylinder is provided with vacation
Finger tests pressure-reducing valve.Prosthetic finger test cell by adjust prosthetic finger test pressure-reducing valve pressure, and by adjusting bolt with
Corresponding adjustment screw threaded connection, the precompression of fine setting prosthetic finger test pressure spring, makes pushing for test prosthetic finger
Power is corresponding with the specification of tested fingerprint chip, improves measuring accuracy.
Preferably, described prosthetic finger test cell also includes：Provided with the adjusting bolt that length direction is above-below direction
The adjustment limiting plate of spacing elongated hole；The spacing elongated hole of adjusting bolt is enclosed on the screw rod of adjusting bolt outside and the width and tune of spacing elongated hole
The external diameter matching of whole screw rod.Adjustment limiting plate provided with the spacing elongated hole of adjusting bolt is beneficial to the stability for improving adjusting bolt.
Preferably, described output signal test cell includes：The cylinder fixed seat being connected with crossbeam, is fixed with cylinder
The output signal tested cylinder of seat connection, the output signal test adaptor that upper end is connected with the piston rod of output signal tested cylinder
Block, it is connected with output signal test adaptor block and provided with the output signal test position fix of several adjusting screw holes vertically arranged
Plate, limited provided with length direction for the spacing elongated hole of adjusting screw rod of above-below direction and the regulation that be connected with output signal test position fix plate
Position plate, adjusting screw rod, output signal test pressure spring, the output signal test that upper end is connected with output signal test adaptor block
Vertical guide, the output signal test suite located at output signal test vertical guide lower end；Output signal tests vertical guide
Sliding block be connected with crossbeam；The width of the spacing elongated hole of adjusting screw rod matches with the external diameter of adjusting screw rod；The screw rod of adjusting screw rod is worn
Overregulate screw limiting elongated hole and be threadedly coupled with an adjusting screw hole；Output signal test pressure spring both ends respectively with horizontal stroke
Beam connects with adjusting screw rod；The compressed air inlet pipe road connected with output signal tested cylinder is provided with output signal test decompression
Valve.Output signal test cell tests the pressure of pressure-reducing valve by adjusting output signal, and passes through adjusting screw rod and corresponding one
Individual adjusting screw hole threaded connection, the precompression of fine setting output signal test pressure spring, makes the lower pressure of testing pressure head with being tested
The specification of the fingerprint chip of examination is corresponding, improves measuring accuracy.
Preferably, described output signal test suite includes：Lower end is provided with mounting groove and erected with output signal test
Direction guiding rail lower end connection measuring head installing plate, the elastic that upper end is connected with mounting groove top surface, located at mounting groove downside and with
The limiting plate of elastic lower end connection, surveyed with the connection of limiting plate lower end and the output signal relative with printed circuit pinboard upper end
Pressure text head.The limiting plate of output signal test suite coordinates with elastic, when pushing down printed circuit pinboard to testing pressure head
It is injury-free that impulsive force enters row buffering.
Preferably, described longitudinal driving device includes：The vertical drive motor being connected with base, with zigzag tread patterns electricity
The zigzag tread patterns active synchronization wheel of the output axis connection of machine, with base pivot joint the driven synchronizing wheel of zigzag tread patterns, respectively with longitudinal direction
Drive active synchronization wheel and the zigzag tread patterns timing belt of the driven synchronizing wheel drive connection of zigzag tread patterns；The one of zigzag tread patterns timing belt
The other end of side and crossbeam connects.Longitudinal driving device is simple and practical.
Preferably, described lateral driver device includes：The horizontal drive motor being connected with crossbeam one end, with horizontal drive
The laterally driven active synchronization wheel of the output axis connection of dynamic motor, the laterally driven driven synchronizing wheel with the pivot joint of the crossbeam other end,
The laterally driven timing belt being connected respectively with laterally driven active synchronization wheel and laterally driven driven synchronizing wheel；It is laterally driven
One side of timing belt is connected with transverse shifting seat.Lateral driver device is simple and practical.
A kind of method of testing of fingerprint apparatus for testing chip, described fingerprint apparatus for testing chip have above-mentioned fingerprint core
The limiting structure of built-in testing device；(1) by fingerprint chip be placed on corresponding to fingerprint chip carrier accommodating hole in, and by fingerprint core
Bar and accommodating groove bottom mode connects for screw；The pressure of prosthetic finger test pressure-reducing valve is adjusted, and passes through adjusting bolt and corresponding one
It is individual to adjust screw threaded connection, the precompression of fine setting prosthetic finger test pressure spring, make the lower pressure of test prosthetic finger with being tested
The specification of the fingerprint chip of examination is corresponding；The pressure of output signal test pressure-reducing valve is adjusted, and passes through adjusting screw rod and corresponding one
Individual adjusting screw hole threaded connection, the precompression of fine setting output signal test pressure spring, makes the lower pressure of testing pressure head with being tested
The printed circuit pinboard for trying the matching of fingerprint chip is corresponding；(2) longitudinal driving device driving crossbeam lengthwise movement, makes test do evil through another person
Finger is relative with fingerprint chip upper end, and testing pressure head is relative with printed circuit pinboard upper end；(3) piston of prosthetic finger tested cylinder
Bar is stretched out, and through prosthetic finger test adaptor block, prosthetic finger test vertical guide, prosthetic finger measuring head moves downward, prosthetic finger is pushed down
Fingerprint chip upper end, pressure sensor send the pressure value measured to controller；The piston rod of output signal tested cylinder is stretched
Go out, output signal test adaptor block, output signal test vertical guide, output signal test suite move downward, testing pressure head
Push down printed circuit pinboard upper end and send the output signal value measured to controller；(4) according to tested fingerprint core
The different size of piece, the specification and the specification of tested fingerprint chip of several test prosthetic fingers that prosthetic finger measuring head is provided with
Correspond；When changing different size fingerprint chip, fingerprint chip carrier is changed according to the specification of tested fingerprint chip, and will
Fingerprint chip is placed in storage tank；Lateral driver device driving transverse shifting seat, prosthetic finger test vertical guide, prosthetic finger test
Head transverse movement, make the fingerprint chip with being tested specification it is corresponding test prosthetic finger move to test position, test prosthetic finger
It is relative with the upper end of tested fingerprint chip.The method of testing of fingerprint apparatus for testing chip can meet fingerprint chip testing need
Will, and improve the efficiency for changing different size fingerprint chip testing.
Compared with prior art, the beneficial effects of the invention are as follows：The fingerprint apparatus for testing chip has multiple transmission stations,
Longitudinal driving device drives crossbeam lengthwise movement, lateral driver device driving transverse shifting seat transverse movement, is surveyed by prosthetic finger
Examination unit and output signal test cell replace manually being detected manually, and repeatability and stability are high, testing efficiency and test
Precision is higher.The pressure sensor of test bench unit supports test substrate, and fingerprint chip carrier is provided with printed circuit pinboard, referred to
Line chip is compact-sized and be easy to test in the accommodating hole of fingerprint chip carrier upper end；The fingerprint chip carrier of test bench unit
It can be convenient for changing according to the specification of tested fingerprint chip.Prosthetic finger test cell tests the pressure of pressure-reducing valve by adjusting prosthetic finger
Power, and be threadedly coupled by adjusting bolt with corresponding one adjustment screw, the precompression of fine setting prosthetic finger test pressure spring,
Make the lower pressure of test prosthetic finger corresponding with the specification of tested fingerprint chip, improve measuring accuracy.Limited provided with adjusting bolt
The adjustment limiting plate in bit length hole is beneficial to the stability for improving adjusting bolt.Output signal test cell is surveyed by adjusting output signal
The pressure of pressure-reducing valve is tried, and is threadedly coupled by adjusting screw rod with a corresponding adjusting screw hole, fine setting output signal test is adjusted
The precompression of pressing spring, make the lower pressure of testing pressure head corresponding with the specification of tested fingerprint chip, improve measuring accuracy.It is defeated
The limiting plate and elastic for going out signal testing component coordinate, and impulsive force when printed circuit pinboard is pushed down to testing pressure head is carried out
Buffer injury-free.Longitudinal driving device, lateral driver device are simple and practical.The method of testing of fingerprint apparatus for testing chip
Fingerprint chip testing needs can be met, and improve the efficiency for changing different size fingerprint chip testing.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is the structural representation of prosthetic finger test cell；
Fig. 3 is the structural representation of output signal test cell.
In figure：Base 1, test bench unit 2, storage tank 21, test substrate 22, pressure sensor 23, sensor holder 24, print
Adapter plate for circuit 25 processed, fingerprint chip carrier 26, accommodating hole 27, fingerprint chip 28, vertically move seat 3, crossbeam 31, zigzag tread patterns electricity
Machine 32, zigzag tread patterns active synchronization wheel 33, the driven synchronizing wheel 34 of zigzag tread patterns, zigzag tread patterns timing belt 35, longitudinal rail 4, horizontal stroke
Direction guiding rail 5, transverse shifting seat 6, horizontal drive motor 61, laterally driven timing belt 62, prosthetic finger test cell 7, cylinder installation
Seat 71, prosthetic finger tested cylinder 72, prosthetic finger test adaptor block 73, adjustment screw 74, prosthetic finger test position fix plate 75, adjustment spiral shell
Bar 76, prosthetic finger test pressure spring 77, prosthetic finger test vertical guide 78, test prosthetic finger 79, prosthetic finger measuring head 710,
The spacing elongated hole 711 of adjusting bolt, adjustment limiting plate 712, output signal test cell 8, cylinder fixed seat 81, output signal test
Cylinder 82, output signal test adaptor block 83, adjusting screw hole 84, output signal test position fix plate 85, the spacing elongated hole of adjusting screw rod
86th, limiting plate 87, adjusting screw rod 88, output signal test pressure spring 89, output signal test vertical guide 810, peace are adjusted
Tankage 811, measuring head installing plate 812, elastic 813, limiting plate 814, output signal testing pressure head 815.
Embodiment
It is shown below in conjunction with the accompanying drawings that the present invention is described further.
As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3：A kind of fingerprint apparatus for testing chip, including：Base 1, on base 1
Four transversely arranged test bench units 2, pass through two longitudinal rails 4 provided with crossbeam 31 and longitudinal driving device and with base 1
What is be slidably connected vertically moves seat 3, the horizontal shifting being slidably connected provided with lateral driver device and with crossbeam 31 by cross slide way 5
Dynamic seat 6, on transverse shifting seat 6 and number and 2 number identical prosthetic finger test cells 7 of test bench unit, located at longitudinal direction
On Mobile base 3 and number and 2 number identical output signal test cells 8 of test bench unit；Output signal test cell 8 and vacation
Finger test cell 7 corresponds positioned at the upside of test bench unit 2 and with test bench unit 2 respectively.
Described test bench unit 2 includes：Upper end is provided with the test substrate 22 of storage tank 21, provided with supporting test substrate
22 pressure sensor 23 and with the sensor holder 24 of the mode connects for screw of base 1, provided with printed circuit pinboard 25 and and storage tank
The fingerprint chip carrier 26 of 21 bottom surface mode connects for screw, located at the accommodating hole 27 of the upper end of fingerprint chip carrier 26 and in accommodating hole 27
Fingerprint chip 28.
Described prosthetic finger test cell 7 includes：With the cylinder mounting seat 71 of the mode connects for screw of transverse shifting seat 6, with cylinder
The prosthetic finger tested cylinder 72 of the mode connects for screw of mounting seat 71, the vacation that upper end is connected with the piston rod thread of prosthetic finger tested cylinder 72
Finger test adaptor block 73, with the mode connects for screw of prosthetic finger test adaptor block 73 and provided with the three adjustment screws 74 vertically arranged
Prosthetic finger test position fix plate 75, and the adjusting bolt 76 that is threadedly coupled of adjustment screw 74, both ends respectively with transverse shifting
The prosthetic finger test pressure spring 77 that seat 6 and adjusting bolt 76 connect, upper end and the mode connects for screw of prosthetic finger test adaptor block 73
Prosthetic finger tests vertical guide 78, is tested provided with two transversely arranged test prosthetic fingers 79 and with prosthetic finger under vertical guide 78
Hold the prosthetic finger measuring head 710 of mode connects for screw；The sliding block and the mode connects for screw of transverse shifting seat 6 of prosthetic finger test vertical guide 78；
The compressed air inlet pipe road connected with prosthetic finger tested cylinder 72 is provided with prosthetic finger test pressure-reducing valve (being not drawn into accompanying drawing).
Described prosthetic finger test cell 7 also includes：Provided with the spacing elongated hole of adjusting bolt that length direction is above-below direction
711 adjustment limiting plate 712；The spacing elongated hole 711 of adjusting bolt is enclosed on the screw rod of adjusting bolt 76 outside and the width of spacing elongated hole
Coordinate with the crest clearance of adjusting bolt 76.
Described output signal test cell 8 includes：With the cylinder fixed seat 81 of the mode connects for screw of crossbeam 31, fixed with cylinder
The output signal tested cylinder 82 of 81 mode connects for screw of seat, upper end is connected defeated with the piston rod thread of output signal tested cylinder 82
Go out signal testing transfer block 83, with the mode connects for screw of output signal test adaptor block 83 and provided with the three regulation spiral shells vertically arranged
The output signal test position fix plate 85 in hole 84, provided with length direction for above-below direction the spacing elongated hole 86 of adjusting screw rod and with output
The regulation limiting plate 87 of the mode connects for screw of signal testing location-plate 85, adjusting screw rod 88, output signal test pressure spring 89, upper end
Vertical guide 810 is tested with the output signal of the mode connects for screw of output signal test adaptor block 83, it is vertical located at output signal test
The output signal test suite of the lower end of guide rail 810；The sliding block and the mode connects for screw of crossbeam 31 of output signal test vertical guide 810；
The width of the spacing elongated hole 86 of adjusting screw rod 88 coordinates with the crest clearance of adjusting screw rod 88；The screw rod of adjusting screw rod 88 passes through regulation
The spacing elongated hole 86 of screw rod 88 and it is threadedly coupled with an adjusting screw hole 84；Output signal test pressure spring 89 both ends respectively with
Crossbeam 31 and adjusting screw rod 88 connect；The compressed air inlet pipe road connected with output signal tested cylinder 82 is provided with output signal
Test pressure-reducing valve (being not drawn into accompanying drawing).
Described output signal test suite includes：Lower end is provided with mounting groove 811 and tests vertical guide with output signal
The measuring head installing plate 812 of 810 lower end mode connects for screw, the upper end elastic 813 Nian Jie with the top surface of mounting groove 811, located at installation
The downside of groove 811 and the limiting plate 814 Nian Jie with the lower end of elastic 813, with the lower end mode connects for screw of limiting plate 814 and and printed circuit
The relative output signal testing pressure head 815 in the upper end of pinboard 25.The material of elastic 813 is rubber.
Described longitudinal driving device includes：With the vertical drive motor 32 of the mode connects for screw of base 1, with vertical drive motor
The zigzag tread patterns active synchronization wheel 33 of 32 output shaft key connection, it is driven synchronous by the zigzag tread patterns of bearing hinge joint with base 1
Wheel 34, the zigzag tread patterns timing belt being connected respectively with zigzag tread patterns active synchronization wheel 33 and the driven synchronizing wheel 34 of zigzag tread patterns
35；One side of zigzag tread patterns timing belt 35 and the other end mode connects for screw of crossbeam 31.
Described lateral driver device includes：With the horizontal drive motor 61 of one end mode connects for screw of crossbeam 31, with horizontal drive
The laterally driven active synchronization wheel (being not drawn into accompanying drawing) of the output shaft key connection of dynamic motor 61, passes through axle with the other end of crossbeam 31
Hold the laterally driven driven synchronizing wheel (being not drawn into accompanying drawing) of pivot joint, respectively with laterally driven active synchronization wheel and it is laterally driven from
The laterally driven timing belt 62 of dynamic synchronizing wheel drive connection；One side of laterally driven timing belt 62 and the screw of transverse shifting seat 6
Connection.
A kind of method of testing of the test device of fingerprint chip 28, the described test device of fingerprint chip 28 have above-mentioned finger
The limiting structure of line apparatus for testing chip；(1) fingerprint chip 28 is placed in the accommodating hole 27 of corresponding fingerprint chip carrier 26,
And by fingerprint chip carrier 26 and the bottom surface mode connects for screw of storage tank 21；The pressure of prosthetic finger test pressure-reducing valve is adjusted, and passes through adjustment
Screw rod 76 is threadedly coupled with corresponding one adjustment screw 74, the precompression of fine setting prosthetic finger test pressure spring 77, makes test
The lower pressure of prosthetic finger 79 is corresponding with the specification of tested fingerprint chip 28；The pressure of output signal test pressure-reducing valve is adjusted,
And be threadedly coupled by adjusting screw rod 88 with a corresponding adjusting screw hole 84, fine setting output signal tests the pre- of pressure spring 89
Pressure, make the lower pressure of testing pressure head corresponding with the printed circuit pinboard 25 that tested fingerprint chip 28 matches；(2) longitudinal direction is driven
The dynamic device driving lengthwise movement of crossbeam 31, makes test prosthetic finger 79 relative with the upper end of fingerprint chip 28, testing pressure head and printing electricity
The upper end of road pinboard 25 is relative；(3) piston rod of prosthetic finger tested cylinder 72 stretches out, and through prosthetic finger test adaptor block 73, does evil through another person
Finger test vertical guide 78, prosthetic finger measuring head 710 move downward, and prosthetic finger pushes down the upper end of fingerprint chip 28, pressure sensor
23 send the pressure value measured to controller；The piston rod of output signal tested cylinder 82 stretches out, output signal test adaptor
Block 83, output signal test vertical guide 810, output signal test suite move downward, and testing pressure head is pushed down printed circuit and turned
The upper end of fishplate bar 25 and send the output signal value measured to controller；(4) according to two of tested fingerprint chip 28 not
Same specification, the specification and the specification of tested fingerprint chip 28 of two test prosthetic fingers 79 that prosthetic finger measuring head 710 is provided with
Correspond；When changing different size fingerprint chip 28, fingerprint chip carrier is changed according to the specification of tested fingerprint chip 28
26, and fingerprint chip 28 is placed in storage tank 21；Lateral driver device driving transverse shifting seat 6, prosthetic finger test are vertically led
Rail 78, the transverse movement of prosthetic finger measuring head 710, make the fingerprint chip 28 with being tested specification it is corresponding test prosthetic finger 79 transport
Test position is moved, test prosthetic finger 79 is relative with the upper end of tested fingerprint chip 28.
The beneficial effects of the invention are as follows：The fingerprint apparatus for testing chip has multiple transmission stations, and longitudinal driving device drives
Dynamic crossbeam lengthwise movement, lateral driver device driving transverse shifting seat transverse movement, is believed by prosthetic finger test cell and output
Number test cell replaces manually being detected manually, and repeatability and stability height, testing efficiency and measuring accuracy are higher.Test bench
The pressure sensor of unit supports test substrate, and fingerprint chip carrier is provided with printed circuit pinboard, fingerprint chip is located at fingerprint
It is compact-sized and be easy to test in the accommodating hole of chip carrier upper end；The fingerprint chip carrier of test bench unit is according to tested fingerprint core
The specification of piece can be convenient for changing.Prosthetic finger test cell tests the pressure of pressure-reducing valve by adjusting prosthetic finger, and passes through adjustment
Screw rod and corresponding one adjustment screw threaded connection, the precompression of fine setting prosthetic finger test pressure spring, make test prosthetic finger
Lower pressure and the specification of tested fingerprint chip it is corresponding, raising measuring accuracy.Adjustment provided with the spacing elongated hole of adjusting bolt
Limiting plate is beneficial to the stability for improving adjusting bolt.Output signal test cell tests the pressure of pressure-reducing valve by adjusting output signal
Power, and be threadedly coupled by adjusting screw rod with a corresponding adjusting screw hole, the precompressed of fine setting output signal test pressure spring
Power, make the lower pressure of testing pressure head corresponding with the specification of tested fingerprint chip, improve measuring accuracy.Output signal test group
The limiting plate of part coordinates with elastic, and impulsive force when printed circuit pinboard is pushed down to testing pressure head is entered row buffering and is not damaged
Wound.Longitudinal driving device, lateral driver device are simple and practical.The method of testing of fingerprint apparatus for testing chip can meet fingerprint
Chip testing needs, and improves the efficiency for changing different size fingerprint chip testing.
The present invention can change into that various ways are apparent to one skilled in the art, and such change is not considered as
Depart from the scope of the present invention.All such technical staff to the field obviously change, and are included within this right
Within the scope of it is required that.
Claims (9)
1. a kind of fingerprint apparatus for testing chip, including：Base；It is characterized in that described fingerprint apparatus for testing chip also includes：If
In several transversely arranged test bench units on base, pass through at least one provided with crossbeam and longitudinal driving device and with base
What individual longitudinal rail was slidably connected vertically moves seat, is slidably connected provided with lateral driver device and with crossbeam by cross slide way
Transverse shifting seat, on transverse shifting seat and number and test bench unit number identical prosthetic finger test cell, located at vertical
On to Mobile base and number and test bench unit number identical output signal test cell；Output signal test cell and do evil through another person
Refer to test cell to correspond on the upside of test bench unit and with test bench unit respectively.
2. fingerprint apparatus for testing chip according to claim 1, it is characterized in that：Described test bench unit includes：Upper end
Test substrate provided with storage tank, provided with the sensor holder for supporting the pressure sensor of test substrate and being connected with base, if
The fingerprint chip carrier for having printed circuit pinboard and being detachably connected with accommodating groove bottom, located at the accommodating of fingerprint chip carrier upper end
Hole and the fingerprint chip in accommodating hole.
3. fingerprint apparatus for testing chip according to claim 2, it is characterized in that：Described prosthetic finger test cell includes：
The cylinder mounting seat being connected with transverse shifting seat, the prosthetic finger tested cylinder being connected with cylinder mounting seat, upper end are surveyed with prosthetic finger
The prosthetic finger test adaptor block of the piston rod connection of gas testing cylinder, it is connected with prosthetic finger test adaptor block and is provided with what is vertically arranged
The prosthetic finger test position fix plate of several adjustment screws, and the adjusting bolt that is threadedly coupled of adjustment screw, both ends respectively with
The prosthetic finger test pressure spring that transverse shifting seat connects with adjusting bolt, upper end is done evil through another person with what prosthetic finger test adaptor block was connected
Refer to test vertical guide, be connected provided with several transversely arranged test prosthetic fingers and with prosthetic finger test vertical guide lower end
Prosthetic finger measuring head；The sliding block of prosthetic finger test vertical guide is connected with transverse shifting seat；Connected with prosthetic finger tested cylinder
Compressed air inlet pipe road is provided with prosthetic finger test pressure-reducing valve.
4. fingerprint apparatus for testing chip according to claim 3, it is characterized in that：Described prosthetic finger test cell also wraps
Include：Adjustment limiting plate provided with length direction for the spacing elongated hole of adjusting bolt of above-below direction；The spacing elongated hole of adjusting bolt is enclosed on
The screw rod of adjusting bolt is outer and the width of spacing elongated hole matches with the external diameter of adjusting bolt.
5. fingerprint apparatus for testing chip according to claim 2, it is characterized in that：Described output signal test cell bag
Include：The cylinder fixed seat being connected with crossbeam, the output signal tested cylinder being connected with cylinder fixed seat, upper end are surveyed with output signal
The output signal test adaptor block of the piston rod connection of gas testing cylinder, it is connected and is provided with output signal test adaptor block and vertically arrange
The output signal test position fix plate of several adjusting screw holes of row, provided with the spacing length of adjusting screw rod that length direction is above-below direction
Hole and the regulation limiting plate being connected with output signal test position fix plate, adjusting screw rod, output signal test pressure spring, upper end with
The output signal test vertical guide of output signal test adaptor block connection, located at the defeated of output signal test vertical guide lower end
Go out signal testing component；The sliding block of output signal test vertical guide is connected with crossbeam；The width of the spacing elongated hole of adjusting screw rod with
The external diameter matching of adjusting screw rod；The screw rod of adjusting screw rod connects through the spacing elongated hole of adjusting screw rod and with an adjusting screw hole screw thread
Connect；The both ends of output signal test pressure spring are connected with crossbeam and adjusting screw rod respectively；Connected with output signal tested cylinder
Compressed air inlet pipe road be provided with output signal test pressure-reducing valve.
6. fingerprint apparatus for testing chip according to claim 5, it is characterized in that：Described output signal test suite bag
Include：Lower end is provided with mounting groove and the measuring head installing plate being connected with output signal test vertical guide lower end, upper end and mounting groove
The elastic of top surface connection, the limiting plate being connected on the downside of the mounting groove and with elastic lower end, be connected with limiting plate lower end and
The output signal testing pressure head relative with printed circuit pinboard upper end.
7. according to the fingerprint apparatus for testing chip described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that：Described longitudinal direction
Drive device includes：The vertical drive motor being connected with base, the zigzag tread patterns master with the output axis connection of vertical drive motor
Dynamic synchronizing wheel, the driven synchronizing wheel of zigzag tread patterns with base pivot joint, respectively with zigzag tread patterns active synchronization wheel and zigzag tread patterns from
The zigzag tread patterns timing belt of dynamic synchronizing wheel drive connection；One side of zigzag tread patterns timing belt and the other end of crossbeam connect.
8. according to the fingerprint apparatus for testing chip described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that：Described transverse direction
Drive device includes：The horizontal drive motor being connected with crossbeam one end, driven with the transverse direction of the output axis connection of horizontal drive motor
Dynamic active synchronization wheel, the laterally driven driven synchronizing wheel with the pivot joint of the crossbeam other end, respectively with laterally driven active synchronization wheel and
The laterally driven timing belt of laterally driven driven synchronizing wheel drive connection；One side of laterally driven timing belt and transverse shifting seat
Connection.
9. a kind of method of testing of fingerprint apparatus for testing chip, described fingerprint apparatus for testing chip have claim 1 to power
Profit requires the limiting structure of 8 any described fingerprint apparatus for testing chip；It is characterized in that：(1) fingerprint chip is placed on corresponding
In the accommodating hole of fingerprint chip carrier, and by fingerprint chip carrier and accommodating groove bottom mode connects for screw；Adjust prosthetic finger test pressure-reducing valve
Pressure, and by adjusting bolt and corresponding one adjustment screw be threadedly coupled, fine setting prosthetic finger test pressure spring it is pre-
Pressure, make the lower pressure of test prosthetic finger corresponding with the specification of tested fingerprint chip；Adjust output signal test pressure-reducing valve
Pressure, and be threadedly coupled by adjusting screw rod with a corresponding adjusting screw hole, fine setting output signal test pressure spring
Precompression, make the lower pressure of testing pressure head corresponding with the printed circuit pinboard that tested fingerprint chip matches；(2) zigzag tread patterns
Device drives crossbeam lengthwise movement, makes test prosthetic finger relative with fingerprint chip upper end, testing pressure head and printed circuit pinboard
Upper end is relative；(3) prosthetic finger tested cylinder piston rod stretch out, through prosthetic finger test adaptor block, prosthetic finger test vertical guide,
Prosthetic finger measuring head moves downward, and prosthetic finger pushes down fingerprint chip upper end, and pressure sensor sends the pressure value measured to control
Device processed；The piston rod of output signal tested cylinder stretches out, output signal test adaptor block, output signal test vertical guide, defeated
Go out signal testing component to move downward, testing pressure head pushes down printed circuit pinboard upper end and transmits the output signal value measured
To controller；(4) according to the different size of tested fingerprint chip, several tests that prosthetic finger measuring head is provided with are done evil through another person
The specification of finger and the specification of tested fingerprint chip correspond；When changing different size fingerprint chip, according to tested
The specification of fingerprint chip changes fingerprint chip carrier, and fingerprint chip is placed in storage tank；Lateral driver device driving laterally moves
Dynamic seat, prosthetic finger test vertical guide, prosthetic finger measuring head transverse movement, make the specification of fingerprint chip with being tested corresponding
Test prosthetic finger moves to test position, and test prosthetic finger is relative with the upper end of tested fingerprint chip.
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| CN109376650A (en) * | 2018-10-23 | 2019-02-22 | 杭州长川科技股份有限公司 | Optical finger print identifies module detecting device and detection method |
| CN111965526A (en) * | 2020-08-24 | 2020-11-20 | 深圳市华力宇电子科技有限公司 | Fingerprint chip testing device with fake finger mechanism |
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