CN117706432B - Pin detection equipment for SOP packaging element - Google Patents
Pin detection equipment for SOP packaging element Download PDFInfo
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- CN117706432B CN117706432B CN202410146157.9A CN202410146157A CN117706432B CN 117706432 B CN117706432 B CN 117706432B CN 202410146157 A CN202410146157 A CN 202410146157A CN 117706432 B CN117706432 B CN 117706432B
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 100
- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 239000000523 sample Substances 0.000 claims abstract description 49
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 230000002159 abnormal effect Effects 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims description 20
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims 1
- 238000005457 optimization Methods 0.000 description 8
- 238000005538 encapsulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses pin detection equipment for SOP packaging elements, belonging to the technical field of electronic detection; the equipment comprises a base, wherein an electric energy detection mechanism is arranged on the base and is used for detecting the conductivity of the pins of the SOP packaging element; according to the invention, the electric conductivity detection is carried out on the pins of the SOP packaging element through the electric energy detection mechanism, when the electric conductivity detection is realized, the electric measurement probes on the pressing block are mutually abutted with the pins through the buffer piece, so that the pins are in closer contact with the electric measurement probes, and meanwhile, the pressure value of the pins of the SOP packaging element can be accurately detected; the processor acquires the pin pressure value and the conductivity state measured by the electric energy detection mechanism, judges the pin state of the SOP packaging element, avoids abnormal conductivity caused by poor contact between the pin and the electric measuring probe, and forms misjudgment on the conductivity of the pin of the SOP packaging element.
Description
Technical Field
The invention relates to the technical field of electronic detection, in particular to pin detection equipment for SOP packaging elements.
Background
SOP packaging is a common surface mounting technology, and is widely applied to the manufacture of electronic components, and the SOP packaging is characterized by small volume, light weight and good heat resistance, and is suitable for the design and production of high-density circuit boards. SOP package component pins are an important part of connecting electronic components to a circuit board, and are mainly used in various integrated circuits.
Therefore, before the SOP package is shipped, the conductivity of the pins needs to be detected to eliminate the problem of poor contact between the pins and the package. When the pins of the SOP packaging element are automatically electrified and tested, the electrical probe is utilized to conduct conductivity test on the pins of the packaging element, the vertical distance between the pins of the packaging element and the electrical probe is required to be accurate during measurement, if the size error is overlarge, the pins are not on the same plane, poor contact between part of the pins and the electrical probe is easy to cause, the conductivity is abnormal, misjudgment on the conductivity of the pins of the SOP packaging element is formed, and finally the detection of the pins of the SOP packaging element is affected.
Disclosure of Invention
The invention aims to provide a pin detection device for an SOP packaging element, which is used for solving the problem of judging whether the size of a pin is inconsistent or the connection of the pin is abnormal under the condition that the conductivity of the pin of the SOP packaging element is detected.
The invention realizes the above purpose through the following technical scheme:
The pin detection equipment for the SOP packaging element comprises a base, wherein an electric energy detection mechanism is arranged on the base and used for detecting the conductivity of the SOP packaging element pin;
the electric energy detection mechanism comprises a packaging seat, a plurality of pin jacks are symmetrically arranged on two sides of the packaging seat, and pressure detection assemblies are arranged in the pin jacks;
The pressure detection assembly comprises a liftable press block, a plurality of pin jacks are provided with mounting grooves, the press block is slidably mounted on the mounting grooves of the pin jacks, a pressure sensor is arranged at the bottom of the press block and is arranged in the mounting grooves, a buffer piece is arranged at the bottom of the press block, one end of the buffer piece is fixedly mounted at the bottom of the press block, the other end of the buffer piece is arranged on the pressure sensor, and the pressure sensor detects the pressure born by the press block through the buffer piece, so that the pressure value of a pin of an SOP packaging element is detected; an electrical measuring probe is arranged on the pressing block and is used for detecting the conductivity of the pins of the packaging element;
An auxiliary force mechanism is arranged on one side of the electric energy detection mechanism and used for fixing and pressurizing the SOP packaging element;
The base is provided with a processor on one side, the processor is used for controlling the operation of the auxiliary force mechanism and judging the pin state of the SOP packaging element through the pressure value of the pressure sensor and the conductivity state of the electrical measurement probe, and the standard pin size and the standard pressure value range corresponding to the standard size are preset in the processor.
As a further optimization scheme of the invention, the auxiliary force mechanism comprises a fixed seat, a supporting frame is fixedly arranged on one side of the fixed seat, an electric push rod is arranged in the supporting frame, and a piston rod of the electric push rod is fixedly connected with a pressure plate.
As a further optimization scheme of the invention, the specific steps for judging by the processor are as follows:
when the actual pressure value is in the standard pressure value range, judging that the pin size is standard size when the pin is in an electrified state, and connecting the pins normally; when the pin is not in a charged state, judging that the connection of the pin is abnormal; when the actual pressure value is lower than the standard pressure value range, the processor controls the electric push rod to continuously move downwards until the actual pressure value of the pin is in the standard pressure value range, and when the pin is in an electrified state, the size of the pin is judged to be lower than the standard size, and the pin is normally connected; when the pin is not in a charged state, it is determined that the pin connection is abnormal.
As a further optimization of the invention, the buffer is a spring.
As a further optimization scheme of the invention, a fixed groove is formed in the packaging seat, a plurality of jacking grooves are formed in the fixed groove, a jacking mechanism is arranged on each jacking groove, each jacking mechanism comprises a jacking rod, object placing grooves are formed in two sides of each jacking rod, rotatable air pipe spray heads are arranged in each object placing groove, corrugated pipes are communicated with the end parts of the air pipe spray heads, the corrugated pipes are communicated with air channels arranged in the jacking rods, air is conveyed to the end parts of the air pipe spray heads through the air channels and the corrugated pipes, and dirt in pins and pin jacks of SOP packaging elements is cleaned by the aid of the air.
As a further optimization scheme of the invention, the air pipe spray head is rotatably arranged in the storage groove through the connecting shaft, a rotating motor for driving the connecting shaft to rotate is arranged in the lifting rod, and the rotating angle range of the air pipe spray head is 0-120 degrees.
As a further optimization scheme of the invention, the jacking rod is rotatably arranged in the jacking seat, the jacking seat is slidably arranged on the bearing seat, a lifting cylinder for driving the jacking rod to lift is arranged in the bearing seat, and a rotary cylinder for driving the jacking rod to rotate is arranged in the bearing seat.
As a further optimization scheme of the invention, the electric energy detection mechanism is arranged on the loading frame, and the movement of the electric energy detection mechanism is realized through the loading frame.
As a further optimization scheme of the invention, wing plates are symmetrically and fixedly arranged on two sides of the packaging seat, and the packaging seat is arranged on the loading frame in a sliding manner through the wing plates.
The invention has the beneficial effects that: according to the invention, the electric conductivity detection is carried out on the pins of the SOP packaging element by using the electric energy detection mechanism, when the electric conductivity detection is realized by using the pressure detection assembly arranged on the electric energy detection mechanism, the electric measurement probes on the pressing block are mutually abutted by using the buffer piece, so that the pins are more tightly contacted with the electric measurement probes, the abnormal judgment of the electric conductivity caused by the fact that the contact between the pins with abnormal sizes and the electric measurement probes is not tight is avoided, and meanwhile, the pressure value of the pins of the SOP packaging element can be accurately detected by using the pressure sensor;
The processor acquires the pin pressure value and the conductivity state measured by the electric energy detection mechanism, judges the pin state of the SOP packaging element through the pressure value of the pressure sensor and the conductivity state of the electric measurement probe, judges whether the size of the pin is inconsistent or the connection of the pin is abnormal, avoids the abnormal conductivity caused by poor contact between the pin and the electric measurement probe, forms misjudgment on the conductivity of the pin of the SOP packaging element, and finally influences the detection of the pin of the SOP packaging element;
By arranging the jacking mechanism, the jacking rod which can be lifted on the jacking mechanism can automatically jack the SOP packaging element, so that the damage to pins caused by manually taking out the SOP packaging element when the SOP packaging element is fixed with the packaging seat under the action of the auxiliary force mechanism is avoided; meanwhile, the air pipe nozzle arranged in the lifting rod can clean dirt in the pin jack and the surface of the electrical measurement probe by using air and pre-clean the pins, so that poor contact between the pins and the electrical measurement probe caused by accumulation of dirt on the surface of the pin jack and the electrical measurement probe at the back is avoided, misjudgment of abnormal conductivity of the pins is caused, and the accuracy of detecting the state of the pins by the processor is improved;
Through setting up detection component one and detection component two, calibration rod one and calibration rod two on calibration component one and the calibration component two support the pin in step tightly for all pins keep vertical state, avoid inward sloping or outwards slope can influence the detection of pin conductivity, influence the judgement to encapsulation component pin size simultaneously, but the heating rod on the calibration component one can heat softening to the pin root, prevents that the pin from hardening excessively, causes the damage such as pin root fracture, desoldering when correcting.
Drawings
FIG. 1 is a schematic diagram of a pin inspection apparatus for SOP package components according to the present invention;
FIG. 2 is a schematic diagram of the structure of the power detection mechanism according to the present invention;
FIG. 3 is a schematic diagram of a pressure sensing assembly according to the present invention;
FIG. 4 is a partial cross-sectional view of the climbing mechanism of the present invention;
FIG. 5 is a schematic view of the auxiliary force mechanism of the present invention;
FIG. 6 is a schematic structural view of a first calibration assembly and a second calibration assembly in embodiment 3;
FIG. 7 is a schematic view showing the structure of a first calibration assembly in embodiment 3;
Fig. 8 is a partial enlarged view of the first calibration assembly in embodiment 3.
In the figure: 10. a base; 20. an electric energy detection mechanism; 21. a packaging seat; 22. a fixing groove; 23. pin jacks; 24. a wing plate; 25. a jacking groove; 26. a pressure detection assembly; 261. briquetting; 262. an electrical measurement probe; 263. a buffer member; 264. a pressure sensor; 30. an auxiliary force mechanism; 31. a support frame; 32. an electric push rod; 33. a pressure plate; 40. a jacking mechanism; 41. a lifting rod; 42. an air pipe nozzle; 43. a bellows; 44. a connecting shaft; 45. a gas channel; 46. a bearing seat; 47. a jacking seat; 48. a lifting cylinder; 50. a loading rack; 60. a processor; 70. calibrating a first component; 71. a first calibration rod; 72. an electric heating rod; 73. a connecting rod; 74. a rotating lever; 75. a driving rod; 80. a second calibration assembly; 81. a second calibration rod; 82. and a bi-directional driving cylinder.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
Example 1
Referring to fig. 1-5, the present invention is a pin detection device for an SOP package element, including a base 10, wherein an electric energy detection mechanism 20 is provided on the base 10, and the electric energy detection mechanism 20 is used for detecting the conductivity of the SOP package element pin; the electric energy detection mechanism 20 is arranged on the loading frame 50, and the movement of the electric energy detection mechanism 20 is realized through the loading frame 50;
The electric energy detection mechanism 20 comprises a packaging seat 21, a plurality of pin jacks 23 are symmetrically arranged on two sides of the packaging seat 21, and pressure detection assemblies 26 are arranged in the pin jacks 23;
The pressure detection assembly 26 comprises a liftable press block 261, mounting grooves are formed in the plurality of pin insertion holes 23, the press block 261 is slidably mounted on the mounting grooves of the pin insertion holes 23, a pressure sensor 264 is arranged at the bottom of the press block 261, the pressure sensor 264 is arranged in the mounting grooves, a buffer 263 is arranged at the bottom of the press block 261, one end of the buffer 263 is fixedly mounted at the bottom of the press block 261, the other end of the buffer 263 is arranged on the pressure sensor 264, the pressure sensor 264 detects the pressure born by the press block 261 through the buffer 263, the pressure value of a pin of an SOP packaging element is detected, the buffer 263 is a spring, the hard contact between the pin of the packaging element and the electrical probe 262 is buffered through the buffer 263, the pin is prevented from being damaged when the packaging element is subjected to conductivity detection, the use of the SOP packaging element is prevented, meanwhile, the electrical probe 262 and the pin are further abutted against the electrical probe 262, so that the contact between the pin and the electrical probe 262 is more compact, the contact between the pin with the electrical probe 262 is prevented from being not in accordance with the standard, and the judgment of the conductivity is abnormal;
The electrical probe 262 is arranged on the pressing block 261, the electrical probe 262 is detachable, the maintenance and the replacement of the electrical probe 262 are convenient, the electrical probe 262 is used for detecting the conductivity of the pins of the packaging element, the electrical conductivity of each pin of the packaging element is detected through the electrical probe 262, and then the detection of different pins is realized; the electrical test probe 262 is here a contact probe, similar to a metal probe on a multimeter, for contacting a pin to see if it is energized, and the electrical test probe 262 will transmit the detected signal into the processor 60.
A processor 60 is arranged on one side of the base 10, and the processor 60 is used for judging the abnormal state of the pins by judging the conductive state of the pins; the pressure sensor 264 and the electrical measurement probe 262 on the pressure detection assembly 26 are in communication connection with the processor 60, the pressure sensor 264 and the electrical measurement probe 262 transmit the actual pressure value and the conductivity state of each pin into the processor 60, the standard size of the pin is preset in the processor 60, and the size of the pin is calculated by comparing the actual pressure value of the pin with the standard size of the pin and the standard pressure value range in the standard size of the pin;
When the processor 60 controls the electric push rod 32 of the auxiliary force mechanism 30 to drive the pressure plate 33 to press down to a set distance, the pin state of the SOP packaging element is judged through the pressure value of the pressure sensor 264 and the conductivity state of the electric measuring probe 262; the specific steps for the processor 60 to determine are as follows:
When the actual pressure value is in the standard pressure value range, judging that the pin size is standard size when the pin is in an electrified state, and connecting the pins normally; when the pins are not in a charged state, judging that the pins are of standard size and the connection of the pins is abnormal;
When the actual pressure value is lower than the standard pressure value range, the processor 60 controls the electric push rod 32 to move downwards continuously until the actual pressure value of the pin is in the standard pressure value range, and when the pin is in the electrified state, the size of the pin is judged to be lower than the standard size, and the pin connection is normal; when the pins are not in a charged state, judging that the sizes of the pins are lower than the standard sizes, and that the connection of the pins is abnormal;
when the actual pressure value is higher than the standard pressure value range, judging that the pin size is higher than the standard size when the pin is in a charged state, and the pin connection is normal; when the pin is not in a charged state, the size of the pin is judged to be higher than the standard size, and the connection of the pin is abnormal.
The electric energy detection mechanism 20 one side is provided with auxiliary force mechanism 30, auxiliary force mechanism 30 is used for fixing and pressurizing SOP encapsulation component, auxiliary force mechanism 30 includes the fixing base, fixing base one side fixed mounting has support frame 31, be provided with electric putter 32 in the support frame 31, electric putter 32 piston rod fixed connection pressure plate 33, pressure plate 33 bottom is provided with the rubber face, the rubber face is used for buffering the hard contact on pressure plate 33 and SOP encapsulation component surface, avoid causing the damage of encapsulation component shell, through starting electric putter 32, electric putter 32 drives pressure plate 33 downwardly moving, pressure plate 33 contacts SOP encapsulation component surface, apply pressure to SOP encapsulation component surface, drive SOP encapsulation component's pin and electrical measurement probe 262 contact, realize the conductivity detection to the pin.
The wing plates 24 are symmetrically and fixedly arranged on two sides of the packaging seat 21, the packaging seat 21 is arranged on the loading frame 50 in a sliding mode through the wing plates 24, further movement of the packaging seat 21 is achieved, when the packaging seat is in actual use, the plurality of electric energy detection mechanisms 20 can be matched according to the number of pins of the SOP packaging elements, synchronous detection of a large number of pin packaging elements is achieved, detection efficiency of the large number of pin packaging elements is improved, and suitability is higher.
The packaging seat 21 is provided with a fixing groove 22, a plurality of jacking grooves 25 are formed in the fixing groove 22, jacking mechanisms 40 are arranged on the jacking grooves 25, each jacking mechanism 40 comprises a jacking rod 41, two sides of each jacking rod 41 are provided with a storage groove, each storage groove is internally provided with a rotatable air pipe spray nozzle 42, each air pipe spray nozzle 42 is rotatably arranged in each storage groove through a connecting shaft 44, each jacking rod 41 is internally provided with a rotating motor driving the connecting shaft 44 to rotate, the rotating motor drives each air pipe spray nozzle 42 to rotate in each storage groove through the connecting shaft 44, so that each air pipe spray nozzle 42 can face the mounting groove of the packaging seat 21 and the bottom of a base pin of an SOP packaging element, cleaning of the mounting groove and the base pin is realized, the rotating angle range of each air pipe spray nozzle 42 is 0-120 DEG, the end part of each air pipe spray nozzle 42 is communicated with a corrugated pipe 43, each corrugated pipe spray nozzle 42 can be bent, the air pipe spray nozzle 42 is further rotated, the corrugated pipe 43 is communicated with a gas channel 45 arranged in the jacking rod 41, the bottom of each jacking rod 41 is provided with a gas access port, the gas access port is formed in the gas pump 41, and the gas access port is not in contact with the bottom of the corresponding probe 262 through the gas access port to the gas pump port 45, and the bottom of the electrical measuring probe is prevented from being in contact with the base pin 262, and the electrical measuring device is not to seal the surface of the base pin by the electrical measuring device, and the electrical measuring device is not provided with the bottom of the base pin, and the base pin is sealed by the gas pump;
The jacking rod 41 is rotatably installed in the jacking seat 47, the jacking seat 47 is slidably installed on the bearing seat 46, a lifting cylinder 48 is arranged in the bearing seat 46, a piston rod of the lifting cylinder 48 is fixedly connected with the bottom of the jacking seat 47, the jacking seat 47 is driven to slide in the bearing seat 46 by the lifting cylinder 48, so that the lifting function of the jacking rod 41 is realized, and the bearing seat 46 is arranged in the packaging seat 21; a rotary cylinder for driving the jacking rod 41 to rotate is arranged in the bearing seat 46.
Example 2
Referring to fig. 1 to 5, on the basis of embodiment 1, the invention discloses a working method of a pin detection device for an SOP package element, comprising the following steps:
step one: placing the SOP packaging element on the packaging seat 21, starting the electric push rod 32, driving the pressure plate 33 to move downwards by the electric push rod 32, enabling the pressure plate 33 to contact the surface of the SOP packaging element, applying pressure to the surface of the SOP packaging element, enabling pins of the SOP packaging element to contact with the electric probe 262 in the packaging groove, enabling the electric probe 262 to further abut against the pins under the action of the buffer 263, and measuring the electrified state of the pins through the electric probe 262 after the pins contact with the electric probe 262;
Step two: the pins are contacted with the electrical measurement probe 262 under the action of the pressure plate 33, the electrical measurement probe 262 drives the pressing block 261 to apply pressure to the buffer 263, the pressure values are detected through the pressure sensor 264 at the bottom of the buffer 263, the pressure values of different pins are further obtained, the processor 60 is utilized to judge the abnormal state of the pins through the conductivity state of the pins, and meanwhile, the size data of the pins are obtained;
Step three: after the measurement is finished, the lifting cylinder 48 is started, the lifting cylinder 48 drives the lifting rod 41 on the bearing seat 47 to slide on the lifting seat 46, so that the lifting rod 41 is driven to upwards lift the SOP packaging element on the packaging seat 21, the SOP packaging element is automatically lifted, the SOP packaging element is conveniently taken out, and the damage to pins caused by manually taking out the SOP packaging element when the SOP packaging element is fixed with the packaging seat 21 under the action of the auxiliary force mechanism 30 is avoided;
Step four: while jacking, the air pipe spray head 42 in the jacking rod 41 is driven by a rotating motor to extend outwards, air is pumped into the air pipe spray head 42 by a pump, dirt in the pin jack 23 is cleaned by the air, poor contact between pins and the electrical measuring probe 262 caused by accumulation of dust and adhesion sundries on the rear pin jack 23 and the electrical measuring probe 262 is timely cleaned, and cleaning of a plurality of pin jacks 23 is realized by the rotatable jacking rod 41;
when the pins of multiple groups of SOP packaging elements are polluted, the jacking rod 41 jacked up and the air pipe nozzle 42 are matched to conduct pre-purging on the pins when the SOP packaging elements are placed on the packaging seat 21, so that the influence on subsequent conductivity detection is avoided.
Example 3
In actual detection, due to the problem of mounting quality of the pins and the packaging elements, part of the pins and the packaging elements cannot be kept vertical, namely, the pins and the packaging elements generate a certain angle, and the angle enables the pins to incline inwards or outwards when contacting the electrical measurement probes 262 to influence detection of the conductivity of the pins and influence judgment of the size of the pins of the packaging elements, so that the phenomenon needs to be solved in detection;
Referring to fig. 6 to fig. 8, on the basis of embodiment 1, calibration assemblies one 70 are symmetrically disposed on two sides of the loading frame 50, and the calibration assemblies one 70 are used for limiting the outer side of the pins to be unfolded, so that the pins can be kept vertically downward, and the accuracy of the judgment of the processor 60 is improved while the conductivity measurement of the pins is facilitated;
The first calibration assembly 70 comprises a first calibration rod 71, and a driving cylinder for driving the first calibration rod 71 to move is arranged in the loading frame 50; the driving cylinder piston rod drives the first calibration rod 71 to move and drive the pins to calibrate inwards, one side of the first calibration rod 71 is provided with two connecting rods 73, the two connecting rods 73 are provided with rotating rods 74, the rotating rods 74 are rotatably installed on the driving rods 75, rotating cylinders used for rotating the rotating rods 74 are arranged in the driving rods 75, the driving rods 75 are slidably installed on the connecting rods 73, driving cylinders used for driving the driving rods 75 to move are arranged in the connecting rods 73, the two rotating rods 74 are fixedly installed on one side of the electric heating rods 72, heating wires used for heating are arranged in the electric heating rods 72, when the angle of inclination of the pins is overlarge, the rotating rods 74 are driven to rotate by the rotating cylinders, and the driving cylinders drive the driving rods 75 to move, so that the electric heating rods 72 can abut against the root parts of the pins, heat and soften the root parts of the pins, thereby facilitating the subsequent correction operation of the pins, and preventing the root parts from being broken, loose and damaged when the pins are corrected;
The second calibration assembly 80 is arranged on the packaging seat 21, the second calibration assembly 80 is used for limiting the inner side of the pin to shrink so that the pin can keep vertical downward, the second calibration assembly 80 comprises two second calibration rods 81, the two second calibration rods 81 are respectively and slidably arranged on the packaging seat 21, a bidirectional driving cylinder 82 is fixedly arranged on the packaging seat 21, and the two second calibration rods 81 are synchronously driven to move through a piston rod of the bidirectional driving cylinder 82 so that the two second calibration rods 81 drive the pin to be outwards corrected;
When the packaging component is placed on the packaging seat 21 in use, the pins are synchronously abutted by the first calibration rod 71 and the second calibration rod 81 on the first calibration assembly 70 and the second calibration assembly 80, so that all the pins are kept in a vertical state, and subsequent conductivity detection and pin state judgment are facilitated.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (7)
1. A pin inspection apparatus for an SOP package element, characterized by: the SOP packaging element pin conductivity detection device comprises a base (10), wherein an electric energy detection mechanism (20) is arranged on the base (10), and the electric energy detection mechanism (20) is used for SOP packaging element pin conductivity detection; the electric energy detection mechanism (20) comprises a packaging seat (21), a plurality of pin jacks (23) are symmetrically formed in two sides of the packaging seat (21), and pressure detection assemblies (26) are arranged in the pin jacks (23);
The pressure detection assembly (26) comprises a pressing block (261) which can be lifted, a plurality of pin jacks (23) are provided with mounting grooves, the pressing block (261) is slidably mounted on the mounting grooves of the pin jacks (23), a pressure sensor (264) is arranged at the bottom of the pressing block (261), the pressure sensor (264) is arranged in the mounting grooves, a buffer piece (263) is arranged at the bottom of the pressing block (261), one end of the buffer piece (263) is fixedly mounted at the bottom of the pressing block (261), the other end of the buffer piece is arranged on the pressure sensor (264), and the pressure sensor (264) detects the pressure born by the pressing block (261) through the buffer piece (263), so that the pressure value of an SOP packaging element pin is detected; an electrical probe (262) is arranged on the pressing block (261), and the electrical probe (262) is used for detecting the conductivity of the pins of the packaging element;
An auxiliary force mechanism (30) is arranged on one side of the electric energy detection mechanism (20), and the auxiliary force mechanism (30) is used for fixing and pressurizing the SOP packaging element;
A processor (60) is arranged on one side of the base (10), the processor (60) is used for controlling the operation of the auxiliary force mechanism (30) and judging the pin state of the SOP packaging element through the pressure value of the pressure sensor (264) and the conductivity state of the electrical measurement probe (262), and the standard pin size and the standard pressure value range corresponding to the standard size are preset in the processor (60);
the electric energy detection mechanism (20) is arranged on the loading frame (50), calibration assemblies I (70) are symmetrically arranged on two sides of the loading frame (50), the calibration assemblies I (70) are used for limiting the outer side expansion of the pins, the packaging seat (21) is provided with calibration assemblies II (80), and the calibration assemblies II (80) are used for limiting the inner side contraction of the pins;
The auxiliary force mechanism (30) comprises a fixed seat, a supporting frame (31) is fixedly arranged on one side of the fixed seat, an electric push rod (32) is arranged in the supporting frame (31), and a piston rod of the electric push rod (32) is fixedly connected with a pressure plate (33);
The specific steps of the processor (60) for judging are as follows:
when the actual pressure value is in the standard pressure value range, judging that the pin size is standard size when the pin is in an electrified state, and connecting the pins normally;
When the actual pressure value is in the standard pressure value range, judging that the pin size is standard size when the pin is not in an electrified state, and judging that the pin connection is abnormal;
When the actual pressure value is lower than the standard pressure value range, the processor (60) controls the electric push rod (32) to continuously move downwards until the actual pressure value of the pin is in the standard pressure value range, and when the pin is in an electrified state, the size of the pin is judged to be lower than the standard size, and the pin is normally connected;
When the actual pressure value is lower than the standard pressure value range, the processor (60) controls the electric push rod (32) to continuously move downwards until the actual pressure value of the pin is in the standard pressure value range, and when the pin is not in an electrified state, the size of the pin is judged to be lower than the standard size, and the connection of the pin is judged to be abnormal;
When the actual pressure value is higher than the standard pressure value range, judging that the pin size is higher than the standard size when the pin is in a charged state, and the pin connection is normal;
when the actual pressure value is higher than the standard pressure value range, and when the pin is not in a live state, the pin size is judged to be higher than the standard size, and the pin connection is abnormal.
2. A pin inspection apparatus for SOP package as defined in claim 1, wherein: the packaging seat (21) is provided with a fixing groove (22), a plurality of jacking grooves (25) are formed in the fixing groove (22), a plurality of jacking mechanisms (40) are arranged on the jacking grooves (25), each jacking mechanism (40) comprises a jacking rod (41), two sides of each jacking rod (41) are provided with a storage groove, rotatable air pipe spray heads (42) are arranged in each storage groove, the end parts of the air pipe spray heads (42) are communicated with corrugated pipes (43), the corrugated pipes (43) are communicated with gas channels (45) arranged in the jacking rods (41), gas is conveyed to the end parts of the air pipe spray heads (42) through the gas channels (45) and the corrugated pipes (43), and dirt in pins and pin jacks (23) of SOP packaging elements is cleaned by the aid of the gas.
3. A pin inspection apparatus for SOP package as defined in claim 2, wherein: the air pipe spray head (42) is rotatably arranged in the storage groove through a connecting shaft (44), a rotating motor for driving the connecting shaft (44) to rotate is arranged in the lifting rod (41), and the rotating angle range of the air pipe spray head (42) is 0-120 degrees.
4. A pin inspection apparatus for SOP package as defined in claim 3, characterized in that: the lifting rod (41) is rotatably arranged in the lifting seat (47), the lifting seat (47) is slidably arranged on the bearing seat (46), a lifting cylinder (48) for driving the lifting rod (41) to lift is arranged in the bearing seat (46), and a rotary cylinder for driving the lifting rod (41) to rotate is arranged in the bearing seat (46).
5. A pin inspection apparatus for SOP package as defined in claim 1, wherein: the two sides of the packaging seat (21) are symmetrically and fixedly provided with wing plates (24), and the packaging seat (21) is arranged on the loading frame (50) in a sliding manner through the wing plates (24).
6. A pin inspection apparatus for SOP package as defined in claim 1, wherein: the first calibration assembly (70) comprises a first movable calibration rod (71), two connecting rods (73) are arranged on one side of the first calibration rod (71), rotating rods (74) are arranged on the two connecting rods (73), the rotating rods (74) are rotatably arranged on driving rods (75), the driving rods (75) are slidably arranged on the connecting rods (73), the two rotating rods (74) are fixedly arranged on one side of an electric heating rod (72), and heating wires for heating are arranged in the electric heating rod (72).
7. A pin inspection apparatus for SOP package as defined in claim 1, wherein: the second calibration assembly (80) comprises two second calibration rods (81), the two second calibration rods (81) are respectively and slidably mounted on the packaging seat (21), a bidirectional driving air cylinder (82) is fixedly mounted on the packaging seat (21), and the two second calibration rods (81) are synchronously driven to move through piston rods of the bidirectional driving air cylinder (82).
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| CN202410146157.9A CN117706432B (en) | 2024-02-02 | 2024-02-02 | Pin detection equipment for SOP packaging element |
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