CN106291326A - A kind of fixed point testing agency for integrated circuit - Google Patents
A kind of fixed point testing agency for integrated circuit Download PDFInfo
- Publication number
- CN106291326A CN106291326A CN201610708517.5A CN201610708517A CN106291326A CN 106291326 A CN106291326 A CN 106291326A CN 201610708517 A CN201610708517 A CN 201610708517A CN 106291326 A CN106291326 A CN 106291326A
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- integrated circuit
- telescoping tube
- expansion link
- sleeve
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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
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
- G01R31/2887—Features relating to contacting the IC under test, e.g. probe heads; chucks involving moving the probe head or the IC under test; docking stations
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention discloses a kind of fixed point testing agency for integrated circuit, including Holding seat, column, telescoping tube, rotating mechanism, expansion link and the probe being connected to expansion link one end；Holding seat forms a groove, and the upper side wall of groove forms a pair connection post, is provided with grip block in groove, the upper end of grip block forms a pair inserting column, the bottom surface connecting post forms slot, and inserting column is plugged in slot, and connecting post upper sleeve has the first stage clip；One end of telescoping tube forms the adapter sleeve of circle, and adapter sleeve sleeve, on column, the lateral wall of adapter sleeve forms the gear ring of annular, and rotating mechanism includes that swing pinion, the sleeve vertical splined shaft in the middle part of swing pinion being connected is engaged in the side with gear ring；The other end of telescoping tube forms telescopic chute, and expansion link is plugged in telescopic chute.The present invention can discharge both hands, and convenient and integrated circuit detection position detection and localization point contacts and is connected.
Description
Technical field:
The present invention relates to the technical field of integrated circuit detection equipment, be specifically related to a kind of fixed point for integrated circuit
Testing agency.
Background technology:
Operational amplifier integrated circuit, is also called integrated operational amplifier, referred to as integrated transporting discharging, is by multistage direct coupling
Close the high-gain Analogous Integrated Electronic Circuits of amplifying circuit composition.The detection of existing operational amplifier integrated circuit is usually and manually makes
With circuit tester DC voltage shelves, magnitude of voltage between measuring operational amplifier outfan and negative power end (when static state magnitude of voltage
Higher), tap two inputs (adding interference signal) of operational amplifier successively with hand-held metal tweezers simultaneously, if circuit tester
Indicator has swing by a relatively large margin, then illustrate that this operational amplifier is intact, if circuit tester indicator is motionless, then operational amplifier is described
Damage.And manual inspection like this, the hand-held probe being connected with detection table will be relied on to go to contact integrated circuit detection
The detection and localization point at position, but if the detection of operational amplifier integrated circuit, in addition it is also necessary to manually add dry to integrated circuit
Disturbing signal, the most single both hands complete to detect the most more difficulty.
Because above-mentioned defect, the design people, the most in addition research and innovation, to found a kind of new structure for
The fixed point testing agency of integrated circuit so that it is have more the value in industry.
Summary of the invention:
The purpose of the present invention aims to solve the problem that the problem that prior art exists, it is provided that one can discharge both hands, convenient with integrated
The detection and localization point at electric circuit inspection position contact connect the fixed point testing agency for integrated circuit.
The present invention relates to a kind of fixed point testing agency for integrated circuit, including Holding seat, be plugged on described clamping
Telescoping tube on described column of column on base, sleeve, be connected to the rotating mechanism of described telescoping tube one end, sleeve is being stretched
Expansion link in the draw and the probe being connected to described expansion link one end；
The middle part of described Holding seat forms a groove, and the upper side wall of described groove forms a pair connection post, groove
Inside being provided with grip block, the upper end of described grip block forms a pair and is connected, with described, the inserting column that post coordinates, and connects the bottom surface of post
Forming slot, described inserting column is plugged in described slot, and connecting post upper sleeve has the first stage clip, described first stage clip upper
End is resisted against the bottom surface upper and lower end of connection post and is resisted against on the end face of grip block；
One end of described telescoping tube forms the adapter sleeve of circle, and described adapter sleeve sleeve is on column, outside adapter sleeve
Forming the gear ring of annular on sidewall, described rotating mechanism includes that the swing pinion, slotting being connected is engaged in side with described gear ring
Being enclosed within the vertical splined shaft in the middle part of described swing pinion, the middle part of swing pinion forms splined hole, and swing pinion passes through institute
State splined hole sleeve on described splined shaft；
The other end of described telescoping tube forms telescopic chute, and described expansion link is plugged in described telescopic chute, expansion link
Upper end forms the tooth-strip part along expansion link longitudinal extension, is hinged with the regulation gear engaged with described tooth-strip part in telescopic chute,
The upper end of telescoping tube forms dodges notch, the upper end of described regulation gear stretch out described in dodge notch and be engaged with regulation tooth
Bar.
By technique scheme, surface-mounted integrated circuit to be detected operationally, is first clamped in the clamping end by the present invention
Between grip block and the lower wall of groove in the groove of seat, specifically, when clamping surface-mounted integrated circuit, grip block moves by the
One stage clip compression, the inserting column of grip block moves up, until surface-mounted integrated circuit is firmly clamped in the slot connecting post
Between grip block and the lower wall of groove, rely on the elastic force of the first stage clip, different-thickness in the groove of Holding seat, can be clamped
The surface-mounted integrated circuit of size, increases the range of locating and detecting device of the present invention.After surface-mounted integrated circuit has clamped, logical
Overregulate expansion link and stretch out the distance of telescoping tube so that the detection and location point that the probe on expansion link is positioned on surface-mounted integrated circuit
Top, specifically, pushes or pull on adjusting gear rack so that regulation gear rotates forward or backwards, and regulation gear driven is nibbled therewith
The tooth-strip part closed moves, and tooth-strip part drives expansion link movable, until probe is positioned at the upper of detection and location point in telescopic chute
Side.Afterwards, by rotating splined shaft so that splined shaft is rotated pinion rotation, swing pinion drives the gear ring being engaged with
Rotate, thus drive adapter sleeve and telescoping tube to rotate around column, so that the probe on expansion link is positioned at surface-mounted integrated circuit
The surface of test point.Afterwards, can be connected by the spline between swing pinion with splined shaft so that swing pinion is at spline
Moving up and down on axle, swing pinion drives the gear ring that is engaged with to move up and down together, thus drive telescoping tube, expansion link and
Probe moves up and down, until probe and the detection and location point cantact on integrated circuit, probe can be by the table of wire with detection
Tool is electrically connected, and detects detection and location point.When swing pinion, telescoping tube, expansion link and probe move up and down a certain
During position, if the position of probe is inaccurate, it is also possible to rotate splined shaft and make swing pinion rotate, thus drive telescoping tube, stretch
Contracting bar and probe rotate around column, until probe is positioned exactly at the surface of the test point of surface-mounted integrated circuit.
By such scheme, surface-mounted integrated circuit to be measured is clamped by the fixed point testing agency of the present invention by Holding seat,
And regulate location by telescoping tube and expansion link and swing pinion and splined shaft, it is thus possible to release both hands, and convenient and collection
The detection and localization point becoming electric circuit inspection position contacts connection.
One as such scheme is preferred, is provided with wheel gear locking mechanism, described gear between described column and splined shaft
The lifter plate that retaining mechanism includes the lift cylinder being fixed on Holding seat, be fixed on described lift cylinder piston rod with become
The type two check lock levers on described lifter plate, described check lock lever faces the meshing point gap location of gear ring and swing pinion.Press
Such scheme, when swing pinion drives telescoping tube to rotate to anchor point, the lift cylinder of starter receiver retaining mechanism, lifting air
Cylinder drives lifter plate and check lock lever to move up, until check lock lever sleeve is at the meshing point gap location of gear ring Yu swing pinion, by
This makes to lock between gear ring and swing pinion, thus is fixed the position of probe, after locking, it is also possible to make swing pinion and tooth
Circle moves up and down so that probe and the detection and location point cantact on integrated circuit, in the process, gear ring is nibbled with swing pinion
Chalaza gap moves up and down along check lock lever.
As such scheme a kind of preferably, described in dodge and form and described tune on the telescoping tube upper surface of notch side
The joint parallel longitudinal gathering sill of tooth bar, one end, bottom surface of adjusting gear rack forms guide pad, described guide pad be plugged on described in lead
In groove.By such scheme, adjusting gear rack by regulation gear driven expansion link in telescoping tube movable during,
Guide pad moves in gathering sill, thus guides the adjusting position of adjusting gear rack.
One as such scheme is preferred, and described adjusting gear rack is located in a case, and described lagging hinge is flexible
On the upper surface of pipe, in case will be dodged notch and regulation gear is all located at, case is stretched out in one end of adjusting gear rack, described in lead
It is positioned at outside case to block and gathering sill.By such scheme, adjusting gear rack, regulation gear can be protected by case, it is also possible to beat
Open case adjusting gear rack, regulation gear are safeguarded or dismantled.
One as such scheme is preferred, and one end of described expansion link forms the union joint of circle, and described probe is inserted
Being connected on described union joint, the upper end of probe is through expansion link and forms handle, and described handle is resisted against on union joint, probe
Lower end be inserted with the second stage clip and form the pillow block of annular, one end of described second stage clip is resisted against on described pillow block, another
One end is resisted against on union joint.By such scheme, by the elastic force effect of the second stage clip, probe and the detection on surface-mounted integrated circuit
The contact of anchor point is Elastic Contact, it is thus possible to avoid contact with bad.
One as such scheme is preferred, and the lower end of described splined shaft is hinged in fixed plate, and described fixed plate is fixed
On Holding seat.
One as such scheme is preferred, forms upwardly extending rotation hands in the middle part of the upper surface of described splined shaft
Handle.
As such scheme a kind of preferably, described in dodge the length maximum gauge not less than regulation gear of notch.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Accompanying drawing illustrates:
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the partial sectional view of the top view of Fig. 1；
Fig. 4 is the partial structurtes schematic diagram of Fig. 2；
Fig. 5 is the structural representation of middle gear retaining mechanism of the present invention.
Detailed description of the invention:
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Hereinafter implement
Example is used for illustrating the present invention, but is not limited to the scope of the present invention.
Seeing Fig. 1, Fig. 2, a kind of fixed point testing agency for integrated circuit of the present invention, including Holding seat
10, telescoping tube 30 on described column of the column 20 that is plugged on described Holding seat, sleeve, it is connected to described telescoping tube one
The rotating mechanism 40 of end, sleeve expansion link 50 in telescoping tube and be connected to the probe 60 of described expansion link one end.
Seeing Fig. 4, the middle part of described Holding seat 10 forms a groove 11, and the upper side wall of described groove forms a pair
Connecting post 12, be provided with grip block 13 in groove, the upper end of described grip block forms a pair and is connected inserting of post 12 cooperation with described
Connecing post 131, the bottom surface connecting post 12 forms slot 121, and described inserting column 131 is plugged in described slot 121, connects post 12
The bottom surface upper and lower end that upper sleeve has the first stage clip 14, the upper end of described first stage clip to be resisted against connection post 12 is resisted against grip block
On the end face of 13.
Seeing Fig. 1 to Fig. 3, Fig. 5, one end of described telescoping tube 30 forms the adapter sleeve 31 of circle, described connection inserting
Being enclosed within column 20, the lateral wall of adapter sleeve 31 forms the gear ring 32 of annular, described rotating mechanism 40 includes and described tooth
The swing pinion 41 of side engagement connection of circle 32, the sleeve vertical splined shaft 42 in the middle part of described swing pinion, rotary teeth
The middle part of wheel 41 forms splined hole 411, swing pinion 41 by described splined hole 411 sleeve on described splined shaft 42, institute
Stating and be provided with wheel gear locking mechanism 70 between column 20 and splined shaft 42, described wheel gear locking mechanism includes being fixed on Holding seat 10
On lift cylinder 71, the lifter plate 72 being fixed on described lift cylinder piston rod and two be molded on described lifter plate
Check lock lever 73, described check lock lever faces the meshing point gap location of gear ring 32 and swing pinion 41；The lower end of described splined shaft 42
Being hinged in fixed plate 43, described fixed plate is fixed on Holding seat 10, forms upwards in the middle part of the upper surface of splined shaft 42
The turning handle 44 extended.
Seeing Fig. 2, the other end of described telescoping tube 30 forms telescopic chute 33, and described expansion link 50 is plugged on described flexible
In groove 33, the upper end of expansion link 50 forms the tooth-strip part 51 along expansion link 50 longitudinal extension, is hinged with and institute in telescopic chute 33
Stating the regulation gear 80 of tooth-strip part 51 engagement, the upper end of telescoping tube 30 forms dodges notch 34, described regulation gear 80 upper
End is dodged notch 34 and is engaged with adjusting gear rack 90 described in stretching out, and dodges the length maximum not less than regulation gear 80 of notch 34
Diameter, dodges and forms the gathering sill parallel longitudinal with described adjusting gear rack 90 on telescoping tube 30 upper surface of notch 34 side
35, one end, bottom surface of adjusting gear rack 90 forms guide pad 91, and described guide pad is plugged in described gathering sill 35, adjusting gear rack
90 are located in a case 100, and described lagging hinge is on the upper surface of telescoping tube 30, and case 100 will be dodged notch 34 and adjust
Joint gear 80 all covers and sets including 100, and case 100 is stretched out in one end of adjusting gear rack 90, and described guide pad 91 and gathering sill 35 are positioned at
Outside case 100.
Seeing Fig. 1, one end of described expansion link 50 forms the union joint 52 of circle, and described probe 60 is plugged on described company
On joint 52, the upper end of probe 60 is through expansion link 50 and forms handle 61, and described handle is resisted against on union joint 52, probe
The lower end of 60 is inserted with the second stage clip 62 and forms the pillow block 63 of annular, and one end of described second stage clip 62 is resisted against described axle
On platform 63, the other end is resisted against on union joint 52.
Surface-mounted integrated circuit to be detected in the specific implementation, is first clamped in the groove 11 of Holding seat 10 by the present invention
Grip block 13 and the lower wall of groove 11 between, specifically, clamp surface-mounted integrated circuit time, grip block 13 moves by first press
Spring 14 compresses, and the inserting column 131 of grip block 13 moves up, until surface-mounted integrated circuit is firm in the slot 121 connecting post 12
Jail is clamped between the lower wall of grip block 13 and groove 11, relies on the elastic force of the first stage clip 14, the groove 11 of Holding seat 10
The interior surface-mounted integrated circuit that can clamp different-thickness size, increases the range of locating and detecting device of the present invention.
After surface-mounted integrated circuit has clamped, stretched out the distance of telescoping tube 30 by adjustable telescopic rod 50 so that expansion link
The top of the detection and location point that the probe 60 on 50 is positioned on surface-mounted integrated circuit, specifically, pushes or pull on adjusting gear rack 90, makes
Must regulate gear 80 to rotate forward or backwards, regulation gear 80 drives the tooth-strip part 51 being engaged with to move, and tooth-strip part 51 drives
Expansion link 50 is movable, until probe 60 is positioned at the top of detection and location point in telescopic chute 33.
Afterwards, by rotate splined shaft 42 so that splined shaft 42 is rotated gear 41 and rotates, swing pinion 42 drive with
The gear ring 32 of engagement rotate, thus drive adapter sleeve 31 and telescoping tube 30 to rotate around column 20, so that expansion link 50
On probe 60 be positioned at the surface of test point of surface-mounted integrated circuit.Afterwards, can be by between swing pinion 41 and splined shaft 42
Spline connect so that swing pinion 41 moves up and down on splined shaft 42, and swing pinion 41 drives the gear ring 32 that is engaged with
Move up and down together, thus drive telescoping tube 30, expansion link 50 and probe 60 to move up and down, until probe 60 and integrated circuit
On detection and location point cantact, probe 60 can be electrically connected by the table tool of wire and detection, examine detection and location point
Survey.When swing pinion 41, telescoping tube 30, expansion link 50 and probe 60 move up and down a certain position, if the position of probe 60
Inaccurate, it is also possible to rotate splined shaft 42 and swing pinion 41 is rotated, thus drive telescoping tube 30, expansion link 50 and probe 60
Rotate around column 20, until probe 60 is positioned exactly at the surface of the test point of surface-mounted integrated circuit.
In sum, surface-mounted integrated circuit to be measured is clamped by the fixed point testing agency of the present invention by Holding seat 10, and
Location is regulated by telescoping tube 30 and expansion link 50 and swing pinion 41 and splined shaft 42, it is thus possible to release both hands, and side
Just the detection and localization point with integrated circuit detection position contacts and is connected.
Fixed point testing agency for integrated circuit provided by the present invention, the only detailed description of the invention of the present invention, but
Protection scope of the present invention is not limited thereto, and any those familiar with the art is at the technology model that the invention discloses
In enclosing, change can be readily occurred in or replace, all should contain within scope.Therefore, protection scope of the present invention
Should be as the criterion with described scope of the claims.
Claims (8)
1. the fixed point testing agency for integrated circuit, it is characterised in that:
The column (20) that including Holding seat (10), is plugged on described Holding seat, sleeve telescoping tube on described column
(30), it is connected to the rotating mechanism (40) of described telescoping tube one end, the sleeve expansion link (50) in telescoping tube (30) and connects
Probe (60) in described expansion link one end；
The middle part of described Holding seat (10) forms a groove (11), and the upper side wall of described groove forms a pair connection post
(12), being provided with grip block (13) in groove (11), the upper end of described grip block forms a pair and coordinates with the described post (12) that is connected
Inserting column (131), connect post (12) bottom surface form slot (121), described inserting column (131) is plugged on described slot
(121), in, connecting post (12) upper sleeve has the first stage clip (14), the upper end of described first stage clip to be resisted against the end connecting post (12)
Face upper and lower end is resisted against on the end face of grip block (13)；
One end of described telescoping tube (30) forms the adapter sleeve (31) of circle, and described adapter sleeve sleeve is on column (20), even
Forming the gear ring (32) of annular on the lateral wall of female connector (31), described rotating mechanism (40) includes and the one of described gear ring (32)
The swing pinion (41) of side engagement connection, the sleeve vertical splined shaft (42) in the middle part of described swing pinion, swing pinion
(41) middle part forms splined hole (411), and swing pinion (41) passes through described splined hole (411) sleeve at described splined shaft
(42) on；
The other end of described telescoping tube (30) forms telescopic chute (33), and described expansion link (50) is plugged on described telescopic chute (33)
In, the upper end of expansion link (50) forms the tooth-strip part (51) along expansion link (50) longitudinal extension, and telescopic chute is hinged with in (33)
The regulation gear (80) engaged with described tooth-strip part (51), the upper end of telescoping tube (30) forms dodges notch (34), described tune
The upper end of joint gear (80) is dodged notch (34) and is engaged with adjusting gear rack (90) described in stretching out.
Fixed point testing agency for integrated circuit the most according to claim 1, it is characterised in that: described column (20) with
Being provided with wheel gear locking mechanism (70) between splined shaft (42), described wheel gear locking mechanism includes being fixed on Holding seat (10)
Lift cylinder (71), the lifter plate (72) being fixed on described lift cylinder piston rod and two be molded on described lifter plate
Check lock lever (73), described check lock lever faces the meshing point gap location of gear ring (32) and swing pinion (41).
Fixed point testing agency for integrated circuit the most according to claim 1, it is characterised in that dodge notch described in:
(34) gathering sill (35) parallel longitudinal with described adjusting gear rack (90) is formed on telescoping tube (30) upper surface of side, regulation
One end, bottom surface of tooth bar (90) forms guide pad (91), and described guide pad is plugged in described gathering sill (35).
Fixed point testing agency for integrated circuit the most according to claim 3, it is characterised in that: described adjusting gear rack
(90) being located in a case (100), described lagging hinge is on the upper surface of telescoping tube (30), and case (100) is by escape groove
In mouth (34) and regulation gear (80) are all located at, case (100), described guide pad (91) are stretched out in one end of adjusting gear rack (90)
It is positioned at case (100) outward with gathering sill (35).
Fixed point testing agency for integrated circuit the most according to claim 1, it is characterised in that: described expansion link (50)
One end form the union joint (52) of circle, described probe (60) is plugged on described union joint (52), probe (60) upper
End is through expansion link (50) and forms handle (61), and described handle is resisted against on union joint (52), and the lower end of probe (60) is inserted
Being cased with the second stage clip (62) and form the pillow block (63) of annular, one end of described second stage clip (62) is resisted against described pillow block
(63) upper, the other end is resisted against on union joint (52).
Fixed point testing agency for integrated circuit the most according to claim 1, it is characterised in that: described splined shaft (42)
Lower end be hinged in fixed plate (43), described fixed plate is fixed on Holding seat (10).
Fixed point testing agency for integrated circuit the most according to claim 1, it is characterised in that: described splined shaft (42)
Upper surface in the middle part of form upwardly extending turning handle (44).
Fixed point testing agency for integrated circuit the most according to claim 1, it is characterised in that dodge notch described in:
(34) length is not less than the maximum gauge of regulation gear (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708517.5A CN106291326B (en) | 2016-08-23 | 2016-08-23 | A kind of fixed point testing agency for integrated circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708517.5A CN106291326B (en) | 2016-08-23 | 2016-08-23 | A kind of fixed point testing agency for integrated circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106291326A true CN106291326A (en) | 2017-01-04 |
| CN106291326B CN106291326B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610708517.5A Active CN106291326B (en) | 2016-08-23 | 2016-08-23 | A kind of fixed point testing agency for integrated circuit |
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| CN106870908A (en) * | 2017-03-22 | 2017-06-20 | 姜�硕 | A kind of adjustable type industry support of automation equipment |
| CN106907551A (en) * | 2017-03-22 | 2017-06-30 | 姜�硕 | A kind of adjustable camera support in industrial production line |
| CN106918746A (en) * | 2017-04-21 | 2017-07-04 | 北京首都机场动力能源有限公司 | A kind of phase sequence testing auxiliary device |
| CN108927856A (en) * | 2018-07-07 | 2018-12-04 | 东莞市联洲知识产权运营管理有限公司 | A kind of plank boring device of structure optimization |
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| CN111948510A (en) * | 2019-11-27 | 2020-11-17 | 宁波安创电子科技有限公司 | Tester of nitrogen oxygen sensor controller circuit board |
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| CN106870908A (en) * | 2017-03-22 | 2017-06-20 | 姜�硕 | A kind of adjustable type industry support of automation equipment |
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| CN106918746A (en) * | 2017-04-21 | 2017-07-04 | 北京首都机场动力能源有限公司 | A kind of phase sequence testing auxiliary device |
| CN108927856A (en) * | 2018-07-07 | 2018-12-04 | 东莞市联洲知识产权运营管理有限公司 | A kind of plank boring device of structure optimization |
| CN108972732A (en) * | 2018-07-07 | 2018-12-11 | 东莞市联洲知识产权运营管理有限公司 | A kind of improving equipment for plank aperture |
| CN108927856B (en) * | 2018-07-07 | 2020-10-23 | 王长华 | Wood board perforating device with optimized structure |
| CN108943158A (en) * | 2018-07-27 | 2018-12-07 | 东莞市联洲知识产权运营管理有限公司 | Improved positioning datum plate on a kind of wood sawing machine |
| CN111948510A (en) * | 2019-11-27 | 2020-11-17 | 宁波安创电子科技有限公司 | Tester of nitrogen oxygen sensor controller circuit board |
| CN113304356A (en) * | 2021-06-04 | 2021-08-27 | 深圳市第二人民医院(深圳市转化医学研究院) | Fixed-point puncture dosing device and dosing method for stem cell exosome preparation |
| CN113304356B (en) * | 2021-06-04 | 2022-01-18 | 深圳市第二人民医院(深圳市转化医学研究院) | Fixed-point puncture drug delivery device for stem cell exosomes and application method |
| CN113406479A (en) * | 2021-06-25 | 2021-09-17 | 青岛创奇电子有限公司 | Detection device is used in integrated circuit board production |
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|---|---|
| CN106291326B (en) | 2018-10-12 |
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