CN114910770A - Detection apparatus for DFN encapsulation chip - Google Patents
Detection apparatus for DFN encapsulation chip Download PDFInfo
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- CN114910770A CN114910770A CN202110177579.9A CN202110177579A CN114910770A CN 114910770 A CN114910770 A CN 114910770A CN 202110177579 A CN202110177579 A CN 202110177579A CN 114910770 A CN114910770 A CN 114910770A
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- 238000001514 detection method Methods 0.000 title claims abstract description 67
- 238000005538 encapsulation Methods 0.000 title 1
- 230000007246 mechanism Effects 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 5
- 239000000758 substrate Substances 0.000 abstract description 27
- 238000009434 installation Methods 0.000 description 13
- 230000000149 penetrating effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses a detection device for a DFN packaged chip, which comprises a substrate and a chip detection circuit board, wherein the chip detection circuit board is arranged at the top of the substrate through a screw, a stepping motor is arranged at the bottom of the substrate through a screw, the movable end of the stepping motor penetrates through the surface of the substrate and extends to the upper part of the substrate, the movable end of the stepping motor is fixedly provided with a fixed shaft through a coupler, one end of the fixed shaft is provided with a first supporting plate through a screw, one end of a connecting block is arranged on the surface of the movable end of a linear motor through a screw, the other end of the connecting block is provided with a push plate through a screw, and the bottom of the push plate slides along the inner wall of a long concave plate. The invention is convenient for conveying the chip, saves labor, and obviously improves the detection efficiency and the position precision of the chip loaded on the detection circuit board, thereby ensuring the detection accuracy and avoiding false detection.
Description
Technical Field
The invention relates to the technical field of chip detection, in particular to a detection device for a DFN packaged chip.
Background
Semiconductor chip is when examining, needs artifical manual taking the chip and plug in the jack that is used for detecting the circuit board of chip, is connected the circuit board with testing platform after carrying out the circular telegram test again, if adopt foretell manual operation chip's mode, because the easy production error of manual work when the operation for the positional deviation of chip grafting in the jack reduces the stability that the chip detected, and simultaneously, the manual operation chip still greatly reduced circular telegram work efficiency, and then reduced the detection efficiency of chip.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the detection device for the DFN packaged chip, which not only saves manpower, but also obviously improves the detection efficiency and the position precision of the chip loaded on a detection circuit board, thereby ensuring the detection accuracy and avoiding false detection.
In order to achieve the purpose, the invention adopts the technical scheme that: a detection device for a DFN packaged chip comprises a substrate and a chip detection circuit board, wherein the chip detection circuit board is installed at the top of the substrate through a screw, a stepping motor is installed at the bottom of the substrate through a screw, the movable end of the stepping motor penetrates through the surface of the substrate and extends to the upper side of the substrate, a fixed shaft is fixedly installed at the movable end of the stepping motor through a shaft coupling, a first supporting plate is installed at one end of the fixed shaft through a screw, a plurality of mounting holes are formed in the surface of the first supporting plate, mounting rods are inserted into the plurality of mounting holes in a sliding mode, telescopic mechanisms are installed at the top ends of the plurality of mounting rods, and clamping mechanisms are installed at the bottom ends of the plurality of mounting rods through screws;
the clamping mechanism comprises a second supporting plate, the second supporting plate is installed at the bottom end of the installation rod through a screw, two clamping blocks which are arranged face to face are movably installed on the lower surface of the second supporting plate, and the two clamping blocks can move in the direction of approaching to or separating from each other;
a second servo motor is mounted at the top of the second supporting plate through a screw, a mounting gear is mounted at the movable end of the second servo motor through a screw, a strip-shaped through hole is formed in the top of the second supporting plate, and the mounting gear is located above the strip-shaped through hole;
a second connecting plate and a first connecting plate are respectively arranged at the tops of the two clamping blocks through screws, one ends of the second connecting plate and the first connecting plate penetrate through the strip-shaped through holes and extend to the upper side of the second supporting plate, one ends of the second connecting plate and the first connecting plate are respectively provided with a first rack and a second rack through screws, and the first rack and the second rack are respectively meshed above and below the mounting gear;
the bottom surface of the second supporting plate is provided with at least one dovetail groove, the tops of the two clamping blocks are respectively provided with at least one dovetail block through screws, and the dovetail blocks on the two clamping blocks are matched and arranged in the dovetail grooves and can move along the dovetail groove direction;
the telescopic mechanism comprises a servo electric cylinder, the movable end of the servo electric cylinder is connected with an installation plate through a screw, the top of the installation plate is installed at the top end of an installation rod through a screw, a fixed rod is installed on the shell of the servo electric cylinder through a screw, and the fixed rod is installed at the top of a first support plate through a screw;
the feeding mechanism comprises two strip plates, the two strip plates are symmetrically installed at the top of the base plate through screws, rotating shafts are installed between the two ends of the two strip plates in a penetrating mode, bearings are sleeved at the two ends of the two rotating shafts in a tight fit mode, the outer rings of the bearings are installed with the inner walls of the strip plates in a tight fit mode, conveying belts are sleeved between the surfaces of the two rotating shafts in a tight fit mode, one end of one rotating shaft is provided with a linear motor through a coupler, the first servo motor is installed at the top of the base plate through screws, one ends of the two strip plates extend to the position below a second supporting plate, and a material pushing mechanism is installed on the side face of the second supporting plate in a penetrating mode;
pushing equipment includes linear electric motor, linear electric motor passes through the top of mounting screw at the base plate, linear electric motor's top is equipped with the rectangular concave template that the position corresponds, the one end and the conveyor belt intercommunication of rectangular concave template, rectangular hole has been seted up on the surface of rectangular concave template, the inside slidable mounting in rectangular hole has the connecting block, the one end of connecting block is passed through the mounting screw at linear electric motor's expansion end surface, the other end of connecting block has the push pedal through the mounting screw, the bottom of push pedal slides along the inner wall of rectangular concave template.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, an opening is formed in the side face of the first connecting plate, the opening corresponds to the first rack in position, and the thickness of the first rack is smaller than that of the opening.
2. In the scheme, the top parts of the two long strip plates are provided with the baffle plates through screws.
3. In the above scheme, the top of the base plate is provided with the feeding mechanism corresponding to the position of the second supporting plate.
4. In the scheme, the side surface of the substrate is provided with the PLC controller through the screw.
5. In the above scheme, the PLC controller is connected to the stepping motor, the first servo motor, the linear motor, the second servo motor, and the servo electric cylinder through wires.
6. In the above scheme, the blanking mouth that corresponds with second backup pad position is seted up at the top of base plate, the bottom of base plate is installed through the screw and is connect the workbin that corresponds with the blanking mouth position.
7. In the above scheme, a plurality of supporting blocks are installed at the bottom of the base plate through screws.
8. In the above scheme, at least two of the support blocks are symmetrically arranged.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the clamping mechanism of the detection device for the DFN packaged chip comprises a second supporting plate, wherein the second supporting plate is installed at the bottom end of an installation rod through a screw, two clamping blocks which are arranged face to face are movably installed on the lower surface of the second supporting plate, and the two clamping blocks can move along the direction which is close to or away from each other; the mounting rods are convenient to sequentially and circularly move above the feeding mechanism, the chip detection circuit board and the blanking port, so that the chips are convenient to convey, the labor is saved, the detection efficiency and the position precision of the chips loaded on the detection circuit board are obviously improved, the detection accuracy is ensured, and the false detection is avoided; in addition, its two second connecting plate and first connecting plate are installed respectively through the screw in the top of clamp splice, the one end of second connecting plate and first connecting plate is passed the bar through-hole and is extended to the top of second backup pad, first rack and second rack are installed respectively through the screw in the one end of second connecting plate and first connecting plate, first rack and second rack mesh respectively in the upper and lower side of installation gear, drive first rack, second rack relative or phase to each other in step through the gear, realize the distance adjustment between two clamp splices, are convenient for fix and remove the transportation to the centre gripping of not unidimensional chip.
2. The detection device for the DFN packaged chip is characterized in that the bottom surface of the second supporting plate is provided with at least one dovetail groove, the tops of the two clamping blocks are respectively provided with at least one dovetail block through screws, the dovetail blocks on the two clamping blocks are matched and arranged in the dovetail grooves and can move along the direction of the dovetail grooves, the straightness of the two clamping blocks in the process of repeated reciprocating movement is ensured, so that the chip is accurately clamped, and the detection precision is further ensured; further, it the telescopic machanism includes servo electronic jar, servo electronic jar expansion end has the mounting panel through the screw connection, the top of mounting panel is passed through the mounting screw and is installed on the top of installation pole, servo electronic jar's shell has the dead lever through the mounting screw, the dead lever passes through the mounting screw and at the top of first backup pad, and through the length shrink of servo electronic jar, the action of two clamp splice is cooperated, realizes getting fast of chip between feeding mechanism, chip detection circuitry board and blanking mouth and puts, improves efficiency and the degree of automation that carries out the detection to the chip.
3. The invention relates to a detection device for a DFN packaged chip, wherein a feeding mechanism of the detection device comprises two strip plates, the two strip plates are symmetrically arranged on the top of a substrate through screws, rotating shafts are arranged between the two ends of the two strip plates in a penetrating manner, bearings are tightly sleeved at the two ends of the two rotating shafts, the outer rings of the bearings are tightly arranged on the inner walls of the strip plates, a conveying belt is tightly sleeved between the surfaces of the two rotating shafts, one end of one rotating shaft is provided with a linear motor through a coupler, a first servo motor is arranged on the top of the substrate through screws, one ends of the two strip plates extend to the lower part of a second supporting plate, a material pushing mechanism is arranged on the side surface of one second supporting plate in a penetrating manner, the conveying belt is driven to rotate through the two rotating shafts, and a chip on the conveying belt is moved to the lower part of the second supporting plate, the feeding manpower can be saved, the feeding continuity can be ensured, and the convenience and the effect of chip conveying are further improved; in addition, the material pushing mechanism comprises a linear motor, the linear motor is installed at the top of the substrate through a screw, a long strip concave plate corresponding to the position is arranged above the linear motor, one end of the long strip concave plate is communicated with the conveying belt, a long strip hole is formed in the surface of the long strip concave plate, a connecting block is installed inside the long strip hole in a sliding mode, one end of the connecting block is installed on the surface of the movable end of the linear motor through the screw, a push plate is installed at the other end of the connecting block through the screw, the bottom of the push plate slides along the inner wall of the long strip concave plate, a chip prestored in the long strip concave plate is pushed by the linear motor to slide onto the conveying belt, the conveying belt is driven to rotate through two rotating shafts, the chip is moved to the lower part of the second supporting plate, the material loading manpower can be saved, and the continuity of material loading can be ensured, thereby improving the convenience and the effect of chip conveying.
Drawings
FIG. 1 is a schematic structural diagram of a detection device for a DFN packaged chip according to the present invention;
FIG. 2 is a schematic view of a partial structure of a detection device for a DFN packaged chip according to the present invention;
FIG. 3 is a schematic diagram of a second partial structure of the detection apparatus for a DFN packaged chip according to the present invention;
FIG. 4 is a schematic diagram of a third partial structure of the detection apparatus for the DFN packaged chip of the present invention;
FIG. 5 is a schematic diagram of a partial structure of a detection apparatus for a DFN packaged chip according to the present invention;
fig. 6 is a schematic diagram of a partial structure of the detection apparatus for the DFN packaged chip according to the present invention.
In the above drawings: 1. mounting a rod; 2. a first support plate; 3. a blanking port; 4. a substrate; 5. a material receiving box; 6. a fixed shaft; 7. a stepping motor; 8. a baffle plate; 9. a strip plate; 10. a first servo motor; 11. a PLC controller; 12. a support block; 13. a conveyor belt; 14. a linear motor; 15. pushing the plate; 16. a strip concave plate; 17. a second support plate; 18. a second servo motor; 19. a chip detection circuit board; 20. a servo electric cylinder; 21. a fixing rod; 22. a dovetail block; 23. a clamping block; 24. a strip-shaped through hole; 25. a second connecting plate; 26. an opening; 27. a first connecting plate; 28. a dovetail groove; 29. a first rack; 30. a second rack; 31. mounting a gear; 32. connecting blocks; 33. a strip hole; 34. mounting a plate; 37. a bearing; 38. and rotating the shaft.
Detailed Description
Example 1: a detection device for a DFN packaged chip comprises a substrate 4 and a chip detection circuit board 19, wherein the chip detection circuit board 19 is installed at the top of the substrate 4 through a screw, a stepping motor 7 is installed at the bottom of the substrate 4 through a screw, the movable end of the stepping motor 7 penetrates through the surface of the substrate 4 and extends above the substrate 4, a fixed shaft 6 is fixedly installed at the movable end of the stepping motor 7 through a coupler, a first supporting plate 2 is installed at one end of the fixed shaft 6 through a screw, a plurality of installing holes are formed in the surface of the first supporting plate 2, installing rods 1 are slidably inserted into the plurality of installing holes, a telescopic mechanism is installed at the top ends of the installing rods 1, and a clamping mechanism is installed at the bottom ends of the installing rods 1 through screws;
the clamping mechanism comprises a second supporting plate 17, the second supporting plate 17 is installed at the bottom end of the installation rod 1 through a screw, two clamping blocks 23 arranged face to face are movably installed on the lower surface of the second supporting plate 17, and the two clamping blocks 23 can move along the directions close to or far away from each other;
a second servo motor 18 is mounted at the top of the second support plate 17 through a screw, a mounting gear 31 is mounted at the movable end of the second servo motor 18 through a screw, a strip-shaped through hole 24 is formed in the top of the second support plate 17, and the mounting gear 31 is located above the strip-shaped through hole 24;
a second connecting plate 25 and a first connecting plate 27 are respectively installed on the tops of the two clamping blocks 23 through screws, one ends of the second connecting plate 25 and the first connecting plate 27 penetrate through the strip-shaped through holes 24 and extend to the upper side of the second supporting plate 17, one ends of the second connecting plate 25 and the first connecting plate 27 are respectively installed with a first rack 29 and a second rack 30 through screws, and the first rack 29 and the second rack 30 are respectively meshed with the upper side and the lower side of the installation gear 31;
the bottom surface of the second support plate 17 is provided with at least one dovetail groove 28, the tops of the two clamping blocks 23 are respectively provided with at least one dovetail block 22 through screws, the dovetail blocks 22 on the two clamping blocks 23 are installed inside the dovetail groove 28 in a matched mode and can move along the direction of the dovetail groove 28, and the arrangement of the dovetail blocks 22 and the dovetail groove 28 is used for improving the stability of the two clamping blocks 23 and the second support plate 17 in the vertical direction during connection. The strip-shaped through hole 24 is used for limiting the first connecting plate 27 and the second connecting plate 25 in the horizontal direction, so that the stability of the two clamping blocks 23 moving below the second supporting plate 17 is improved;
the telescopic mechanism comprises a servo electric cylinder 20, the movable end of the servo electric cylinder 20 is connected with a mounting plate 34 through a screw, the top of the mounting plate 34 is mounted at the top end of a mounting rod 1 through a screw, a fixing rod 21 is mounted on the shell of the servo electric cylinder 20 through a screw, and the fixing rod 21 is mounted at the top of a first supporting plate 2 through a screw;
the feeding mechanism comprises two strip plates 9, the two strip plates 9 are symmetrically installed at the top of the base plate 4 through screws, rotating shafts 38 are installed between the two ends of the two strip plates 9 in a penetrating mode, bearings 37 are sleeved at the two ends of the rotating shafts 38 in a tight fit mode, the outer rings of the bearings 37 are installed with the inner walls of the strip plates 9 in a tight fit mode, conveying belts 13 are sleeved between the surfaces of the two rotating shafts 38 in a tight fit mode, one end of each rotating shaft 38 is provided with a linear motor 14 through a coupler, the first servo motor 10 is installed at the top of the base plate 4 through screws, one end of each strip plate 9 extends to the position below the corresponding second supporting plate 17, and one side face of the corresponding second supporting plate 17 is provided with a material pushing mechanism in a penetrating mode;
pushing equipment includes linear electric motor 14, linear electric motor 14 passes through the mounting screw at the top of base plate 4, linear electric motor 14's top is equipped with rectangular concave template 16 that the position corresponds, rectangular concave template 16's one end and conveyor belt 13 intercommunication, rectangular hole 33 has been seted up on rectangular concave template 16's surface, the inside slidable mounting in rectangular hole 33 has connecting block 32, the one end of connecting block 32 is passed through the mounting screw at linear electric motor 14's expansion end surface, there is push pedal 15 at the other end of connecting block 32 through the mounting screw, the bottom of push pedal 15 slides along rectangular concave template 16's inner wall.
The side surface of the first connecting plate 27 is provided with an opening 26, the position of the opening 26 corresponds to that of the first rack 29, the thickness of the first rack 29 is smaller than that of the opening 26, when the two clamping blocks 23 clamp the chip, the two clamping blocks 23 are in a relative motion state at the moment, so that the first rack 29 moves towards the first connecting plate 27, and after the distance between the two clamping blocks 23 gradually approaches, the first rack 29 passes through the opening 26 and is inserted into the first connecting plate 27, so that the chip can be clamped and fixed conveniently, and the stability of the position where the chip is located can be improved;
the tops of the two long strip plates 9 are provided with baffle plates 8 through screws; the top of the base plate 4 is provided with a feeding mechanism corresponding to the position of the second supporting plate 17; a PLC controller 11 is mounted on a side surface of the substrate 4 by screws.
Example 2: a detection device for a DFN packaged chip comprises a substrate 4 and a chip detection circuit board 19, wherein the chip detection circuit board 19 is installed at the top of the substrate 4 through a screw, a stepping motor 7 is installed at the bottom of the substrate 4 through a screw, the movable end of the stepping motor 7 penetrates through the surface of the substrate 4 and extends to the upper side of the substrate 4, a fixed shaft 6 is fixedly installed at the movable end of the stepping motor 7 through a shaft coupling, a first supporting plate 2 is installed at one end of the fixed shaft 6 through a screw, a plurality of mounting holes are formed in the surface of the first supporting plate 2, mounting rods 1 are slidably inserted into the mounting holes, a telescopic mechanism is installed at the top ends of the mounting rods 1, and a clamping mechanism is installed at the bottom ends of the mounting rods 1 through screws;
the clamping mechanism comprises a second supporting plate 17, the second supporting plate 17 is installed at the bottom end of the installation rod 1 through a screw, two clamping blocks 23 which are arranged face to face are movably installed on the lower surface of the second supporting plate 17, and the two clamping blocks 23 can move along the direction which is close to or far away from each other;
a second servo motor 18 is mounted at the top of the second support plate 17 through a screw, a mounting gear 31 is mounted at the movable end of the second servo motor 18 through a screw, a strip-shaped through hole 24 is formed in the top of the second support plate 17, and the mounting gear 31 is located above the strip-shaped through hole 24;
a second connecting plate 25 and a first connecting plate 27 are respectively installed on the tops of the two clamping blocks 23 through screws, one ends of the second connecting plate 25 and the first connecting plate 27 penetrate through the strip-shaped through hole 24 and extend to the upper side of the second supporting plate 17, one ends of the second connecting plate 25 and the first connecting plate 27 are respectively installed with a first rack 29 and a second rack 30 through screws, and the first rack 29 and the second rack 30 are respectively meshed with the upper side and the lower side of the installation gear 31;
at least one dovetail groove 28 is formed in the bottom surface of the second supporting plate 17, at least one dovetail block 22 is mounted at the top of each of the two clamping blocks 23 through a screw, and the dovetail blocks 22 on the two clamping blocks 23 are mounted inside the dovetail groove 28 in a matched manner and can move along the direction of the dovetail groove 28;
the telescopic mechanism comprises a servo electric cylinder 20, the movable end of the servo electric cylinder 20 is connected with a mounting plate 34 through a screw, the top of the mounting plate 34 is mounted at the top end of a mounting rod 1 through a screw, a fixing rod 21 is mounted on the shell of the servo electric cylinder 20 through a screw, and the fixing rod 21 is mounted at the top of a first supporting plate 2 through a screw;
the feeding mechanism comprises two long strip plates 9, the two long strip plates 9 are symmetrically installed at the top of the base plate 4 through screws, rotating shafts 38 are installed between the two ends of the two long strip plates 9 in a penetrating mode, bearings 37 are sleeved at the two ends of the two rotating shafts 38 in a tight fit mode, the outer rings of the bearings 37 are installed with the inner walls of the long strip plates 9 in a tight fit mode, conveying belts 13 are sleeved between the surfaces of the two rotating shafts 38 in a tight fit mode, one end of one of the rotating shafts 38 is provided with a linear motor 14 through a coupler, the first servo motor 10 is installed at the top of the base plate 4 through screws, one ends of the two long strip plates 9 extend to the lower portion of the second supporting plate 17, and one of the two long strip plates 17 is provided with a pushing mechanism in a penetrating mode on the side face of the second supporting plate 17;
the pushing equipment includes linear electric motor 14, linear electric motor 14 passes through the top of mounting screw at base plate 4, linear electric motor 14's top is equipped with rectangular concave plate 16 that the position corresponds, rectangular concave plate 16's one end and conveyor belt 13 intercommunication, rectangular hole 33 has been seted up on rectangular concave plate 16's surface, the inside slidable mounting in rectangular hole 33 has connecting block 32, the fix with screw is passed through on linear electric motor 14's expansion end surface to connecting block 32's one end, there is push pedal 15 at connecting block 32's the other end through the fix with screw, push pedal 15's bottom slides along rectangular concave plate 16's inner wall, and rectangular hole 33 and connecting block 32's setting is used for improving linear electric motor 14 and drives push pedal 15 gliding stability in rectangular concave plate 16, and push pedal 15's bottom slides along rectangular concave plate 16's inner wall, when carrying out autoloading to the chip, firstly, a plurality of chips which are arranged and arranged are pre-stored in a strip concave plate 16, then a PLC 11 controls the movable end of a linear motor 14 to drive a push plate 15 to move synchronously in an intermittent movement mode, the push plate 15 conveys one chip to the surface of a conveying belt 13 in the interval stroke, meanwhile, the PLC 11 controls the first servo motor 10 to work, the first servo motor 10 drives the rotating shaft 38 to rotate synchronously, the rotating shaft 38 drives the conveying belt 13 to rotate, so that the chip is driven by the conveyor belt 13 to be in a horizontal position, which facilitates the chip to be kept away from the elongated concave plate 16, and at this time, the linear motor 14 pushes the chip to move to the surface of the conveying belt 13, which is convenient for the chip conveying convenience, meanwhile, the chip arrangement regularity on the surface of the conveying belt 13 is improved, so that a plurality of clamping mechanisms sequentially clamp a single chip and move to the position above the chip detection circuit board 19.
The PLC controller 11 is connected to the stepping motor 7, the first servo motor 10, the linear motor 14, the second servo motor 18 and the servo electric cylinder 20 through wires, so as to facilitate movement of the chip, the PLC controller 11 controls the stepping motor 7, the first servo motor 10, the linear motor 14 and the second servo motor 18 to stop energization, the PLC controller 11 controls the servo electric cylinder 20 to energize, the length of the servo electric cylinder 20 is extended, the movable end of the servo electric cylinder 20 pushes the mounting plate 34, the mounting plate 34 pushes the mounting rod 1, the mounting rod 1 slides in the mounting hole, the mounting rod 1 pushes the second support plate 17 to move downward, after the two clamping blocks 23 are moved to the two sides of the chip, the PLC controller 11 controls the servo electric cylinder 20 to stop energization, and the PLC controller controls the clamping mechanism to clamp and fix the position of the chip, after the chip is clamped and fixed, the PLC 11 controls the length of the servo electric cylinder 20 to contract, the PLC is used for pulling the mounting rod 1 upwards, the chip is convenient to take out of the two baffles 8, the PLC 11 controls the servo electric cylinder 20 to stop electrifying work and controls the stepping motor 7 to electrify work, the chip is convenient to convey to the position above the chip detection circuit board 19, and therefore the chip is convenient to move and convey;
after the chip is taken out from the conveying belt 13, the step motor 7 is controlled to be powered on and the servo electric cylinder 20 is controlled to stop working through the PLC 11, the step motor 7 drives the chip to rotate to the position above the chip detection circuit board 19, then the step motor 7 is controlled to stop working through the PLC 11 and the servo electric cylinder 20 is controlled to be powered on and working, the servo electric cylinder 20 is used for pushing the installation rod 1 to move downwards so as to be conveniently inserted into a jack of the chip detection circuit board 19 in the downward movement process of the chip, at the moment, the PLC 11 controls the servo electric cylinder 20 to stop working so as to be conveniently connected with a detection platform and powered on for detection, after the chip detection is finished, the PLC 11 is used for controlling the servo electric cylinder 20 to be powered on and working, at the moment, the length of the servo electric cylinder 20 is contracted so as to conveniently pull out the chip from the jack, in the chip detection process, the other group of mounting rods 1, the clamping mechanism and the servo electric cylinder 20 move to the position above the baffle 8, and clamping of the chip is completed, so that time can be saved, and the detection efficiency of the chip is improved.
After the chip is taken out of the jack, the PLC 11 controls the servo electric cylinder 20 to stop working and controls the stepping motor 7 to be electrified and rotated so as to drive the chip to move to the position above the blanking port 3, at the moment, the PLC 11 controls the stepping motor 7 to stop working so as to control the stepping motor 7 to be electrified and rotated conveniently, when the stepping motor 7 works, the stepping motor 7 drives the first rack 29 and the second rack 30 to move in opposite directions so as to facilitate the first rack 29 and the second rack 30 to drive the two clamping blocks 23 to be separated from the chip, so that the chip falls into the material receiving box 5 from the blanking port 3 and is used for receiving and storing the chip; through setting up multiunit servo electronic jar 20, fixture and installation pole 1 for carry out the clamp of chip in proper order and get, detect and the blowing step, can save a large amount of time like this, be used for improving the detection efficiency of chip.
The top of the base plate 4 is provided with a blanking port 3 corresponding to the position of the second supporting plate 17, the bottom of the base plate 4 is provided with a material receiving box 5 corresponding to the position of the blanking port 3 through a screw, the blanking port 3 and the material receiving box 5 are arranged, the blanking port 3 can be used for chips to pass through and fall into the material receiving box 5, and a buffer material such as sponge, soft cloth and the like is laid inside the material receiving box 5 and used for protecting the chips falling into the material receiving box 5, so that the safety of the chips in the material receiving box 5 is improved;
a plurality of supporting blocks 12 are installed at the bottom of the base plate 4 through screws; at least two supporting blocks 12 are symmetrically arranged, the supporting blocks 12 are used for supporting the substrate 4, the stability of the device placed on the ground is improved, and the height of the supporting blocks 12 is larger than that of the stepping motor 7 and used for protecting the stepping motor 7.
When the detection device for the DFN packaged chip is adopted, the mounting rods can be conveniently and circularly moved to the positions above the feeding mechanism, the chip detection circuit board and the blanking port in sequence, so that the chip can be conveniently conveyed, the labor is saved, the detection efficiency and the position precision of the chip loaded on the detection circuit board are obviously improved, the detection accuracy is ensured, and the false detection is avoided;
in addition, the first rack and the second rack are driven by the gear to synchronously move relatively or oppositely, so that the distance between the two clamping blocks is adjusted, and the chips with different sizes are conveniently clamped, fixed, moved and transferred;
in addition, the straightness of the two clamping blocks in the process of repeated reciprocating movement is guaranteed, so that the chip is accurately clamped, and the detection precision is further guaranteed; in addition, the servo electric cylinder is contracted in length and is matched with the actions of the two clamping blocks, so that the chips are quickly picked and placed among the feeding mechanism, the chip detection circuit board and the blanking port, and the efficiency and the automation degree of chip detection are improved;
in addition, the conveying belt is driven to rotate through the two rotating shafts, and the chips on the conveying belt are moved to the position below the second supporting plate, so that the labor for loading can be saved, the continuity of loading can be ensured, and the convenience and the effect of conveying the chips are improved;
in addition, it promotes the chip of pre-existing rectangular concave plate through linear electric motor and slides to the conveyor belt on, and two axis of rotation of rethread drive conveyor belt and rotate, remove the chip to the below of second backup pad, can enough save the material loading manpower, can guarantee the continuity of material loading again, and then improve convenience and the effect that the chip carried.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a detection apparatus for DFN encapsulates chip, includes base plate (4) and chip detection circuit board (19), chip detection circuit board (19) pass through the top of mounting screw at base plate (4), its characterized in that: the bottom of the base plate (4) is provided with a stepping motor (7) through a screw, the movable end of the stepping motor (7) penetrates through the surface of the base plate (4) and extends to the upper side of the base plate (4), the movable end of the stepping motor (7) is fixedly provided with a fixed shaft (6) through a coupler, one end of the fixed shaft (6) is provided with a first supporting plate (2) through a screw, the surface of the first supporting plate (2) is provided with a plurality of mounting holes, mounting rods (1) are slidably inserted into the mounting holes, the top ends of the mounting rods (1) are provided with telescopic mechanisms, and the bottom ends of the mounting rods (1) are provided with clamping mechanisms through screws;
the clamping mechanism comprises a second supporting plate (17), the second supporting plate (17) is mounted at the bottom end of the mounting rod (1) through a screw, two clamping blocks (23) which are arranged face to face are movably mounted on the lower surface of the second supporting plate (17), and the two clamping blocks (23) can move along the directions which are close to or far away from each other;
a second servo motor (18) is mounted at the top of the second supporting plate (17) through a screw, a mounting gear (31) is mounted at the movable end of the second servo motor (18) through a screw, a strip-shaped through hole (24) is formed in the top of the second supporting plate (17), and the mounting gear (31) is located above the strip-shaped through hole (24);
the tops of the two clamping blocks (23) are respectively provided with a second connecting plate (25) and a first connecting plate (27) through screws, one ends of the second connecting plate (25) and the first connecting plate (27) penetrate through the strip-shaped through hole (24) and extend to the upper side of the second supporting plate (17), one ends of the second connecting plate (25) and the first connecting plate (27) are respectively provided with a first rack (29) and a second rack (30) through screws, and the first rack (29) and the second rack (30) are respectively meshed with the upper side and the lower side of the mounting gear (31);
the bottom surface of the second supporting plate (17) is provided with at least one dovetail groove (28), the tops of the two clamping blocks (23) are respectively provided with at least one dovetail block (22) through screws, and the dovetail blocks (22) on the two clamping blocks (23) are arranged in the dovetail groove (28) in a matching manner and can move along the direction of the dovetail groove (28);
the telescopic mechanism comprises a servo electric cylinder (20), the movable end of the servo electric cylinder (20) is connected with a mounting plate (34) through a screw, the top of the mounting plate (34) is mounted at the top end of a mounting rod (1) through a screw, a fixing rod (21) is mounted on the shell of the servo electric cylinder (20) through a screw, and the fixing rod (21) is mounted at the top of a first supporting plate (2) through a screw;
the feeding mechanism comprises two strip plates (9), the two strip plates (9) are symmetrically installed at the top of the base plate (4) through screws, a rotating shaft (38) penetrates through the two ends of the two strip plates (9), bearings (37) are sleeved at the two ends of the rotating shaft (38), the outer ring of the bearing (37) is tightly matched and installed with the inner wall of the long strip plate (9), a conveying belt (13) is tightly sleeved between the surfaces of the two rotating shafts (38), one end of one of the rotating shafts (38) is provided with a linear motor (14) through a coupling, the first servo motor (10) is arranged at the top of the base plate (4) through a screw, one end of each of the two long strip plates (9) extends to the lower part of the second supporting plate (17), a pushing mechanism penetrates through the side surface of one second supporting plate (17);
pushing equipment includes linear electric motor (14), linear electric motor (14) pass through the top of mounting screw at base plate (4), the top of linear electric motor (14) is equipped with rectangular concave plate (16) that the position corresponds, the one end and conveyor belt (13) intercommunication of rectangular concave plate (16), rectangular hole (33) have been seted up on the surface of rectangular concave plate (16), the inside slidable mounting in rectangular hole (33) has connecting block (32), the expansion end surface of mounting screw at linear electric motor (14) is passed through to the one end of connecting block (32), there is push pedal (15) at the other end of connecting block (32) through the mounting screw, the bottom of push pedal (15) slides along the inner wall of rectangular concave plate (16).
2. The apparatus for testing the DFN packaged chip according to claim 1, wherein: an opening (26) is formed in the side face of the first connecting plate (27), the opening (26) corresponds to the first rack (29), and the thickness of the first rack (29) is smaller than that of the opening (26).
3. The DFN packaged chip inspection device of claim 1, wherein: the tops of the two long strip plates (9) are provided with baffle plates (8) through screws.
4. The DFN packaged chip inspection device of claim 1, wherein: and a feeding mechanism corresponding to the position of the second supporting plate (17) is arranged at the top of the base plate (4).
5. The apparatus for testing the DFN packaged chip according to claim 1, wherein: and a PLC (programmable logic controller) (11) is installed on the side surface of the base plate (4) through a screw.
6. The DFN packaged chip inspection device of claim 5, wherein: the PLC (11) is respectively connected with the stepping motor (7), the first servo motor (10), the linear motor (14), the second servo motor (18) and the servo electric cylinder (20) through leads.
7. The DFN packaged chip inspection device of claim 1, wherein: the blanking opening (3) corresponding to the position of the second supporting plate (17) is formed in the top of the base plate (4), and the material receiving box (5) corresponding to the position of the blanking opening (3) is installed at the bottom of the base plate (4) through screws.
8. The DFN packaged chip inspection device of claim 1, wherein: the bottom of the base plate (4) is provided with a plurality of supporting blocks (12) through screws.
9. The apparatus for testing the DFN packaged chip according to claim 8, wherein: at least two of the support blocks (12) are arranged symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177579.9A CN114910770A (en) | 2021-02-09 | 2021-02-09 | Detection apparatus for DFN encapsulation chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177579.9A CN114910770A (en) | 2021-02-09 | 2021-02-09 | Detection apparatus for DFN encapsulation chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114910770A true CN114910770A (en) | 2022-08-16 |
Family
ID=82761786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110177579.9A Withdrawn CN114910770A (en) | 2021-02-09 | 2021-02-09 | Detection apparatus for DFN encapsulation chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114910770A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332120A (en) * | 2022-08-18 | 2022-11-11 | 无锡市华宇光微电子科技有限公司 | Chip automatic detection packaging hardware |
| CN116013818A (en) * | 2023-02-23 | 2023-04-25 | 深圳市金誉半导体股份有限公司 | SiC packaging structure and packaging method |
-
2021
- 2021-02-09 CN CN202110177579.9A patent/CN114910770A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332120A (en) * | 2022-08-18 | 2022-11-11 | 无锡市华宇光微电子科技有限公司 | Chip automatic detection packaging hardware |
| CN115332120B (en) * | 2022-08-18 | 2023-10-03 | 无锡市华宇光微电子科技有限公司 | Automatic chip detection packaging device |
| CN116013818A (en) * | 2023-02-23 | 2023-04-25 | 深圳市金誉半导体股份有限公司 | SiC packaging structure and packaging method |
| CN116013818B (en) * | 2023-02-23 | 2023-10-20 | 深圳市金誉半导体股份有限公司 | SiC packaging structure and packaging method |
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Application publication date: 20220816 |
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