CN211515248U - Lead frame defect detection device - Google Patents
Lead frame defect detection device Download PDFInfo
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- CN211515248U CN211515248U CN201921807007.9U CN201921807007U CN211515248U CN 211515248 U CN211515248 U CN 211515248U CN 201921807007 U CN201921807007 U CN 201921807007U CN 211515248 U CN211515248 U CN 211515248U
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Abstract
The utility model provides a lead frame defect detecting device, a serial communication port, lead frame defect detecting device includes: the device comprises a first feeding and discharging mechanism, a visual detection mechanism and a second feeding and discharging mechanism; the first feeding and discharging mechanism is located at one end of the visual detection mechanism, the second feeding and discharging mechanism is located at the other end of the visual detection mechanism, and the first feeding and discharging mechanism and the second feeding and discharging mechanism alternately send the integrated circuit lead frame to be detected to the visual detection mechanism for visual detection. The utility model discloses a lead frame defect detecting device has two and goes up the unloading station, and two are gone up the unloading station and are distributed in the both sides of a visual inspection mechanism, and visual inspection mechanism of unloading station sharing has been retrencied to two so, has retrencied the structure of device, and to unloading station on any, but continuous operation has reduced the time of waiting simultaneously, has improved the efficiency that detects.
Description
Technical Field
The utility model relates to a lead frame quality testing technical field especially relates to a lead frame defect detecting device.
Background
The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between a lead-out end of an internal circuit of a chip and an external lead by means of a gold bonding wire to form an electrical circuit, plays a role of a bridge connected with an external lead, needs to use the lead frame in most semiconductor integrated blocks, and is an important basic material in the electronic information industry. The lead frame is mainly produced by a die stamping method and a chemical etching method, so that a further solution is necessary to be provided how to efficiently detect the quality of the lead frame so as to ensure good matching with a chip of an integrated circuit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lead frame defect detecting device to overcome the not enough that exists among the prior art.
In order to solve the technical problem, the technical scheme of the utility model is that:
a lead frame defect detection apparatus, comprising: the device comprises a first feeding and discharging mechanism, a visual detection mechanism and a second feeding and discharging mechanism;
the first feeding and discharging mechanism is positioned at one end of the visual detection mechanism, the second feeding and discharging mechanism is positioned at the other end of the visual detection mechanism, and the first feeding and discharging mechanism and the second feeding and discharging mechanism alternately send the integrated circuit lead frame to be detected to the visual detection mechanism for visual detection;
the visual inspection mechanism includes: linear electric motor, first detecting element, second detecting element, linear electric motor one end extends to first unloading mechanism department of going up, the other end extends to unloading mechanism department on the second, first, two detecting element all set up to at least one, and the two all includes: the first detection unit detects the back of the integrated circuit lead frame, and the second detection unit detects the front of the integrated circuit lead frame.
As the utility model discloses a lead frame defect detecting device's improvement, the light source is the line source, in the first detecting element, the detection camera is located the below of line source to light path through the middle of the line source carries out visual detection, in the second detecting element, the detection camera is located the top of line source to light path through the middle of the line source carries out visual detection.
As the utility model discloses a lead frame defect detecting device's improvement, first, two last unloading mechanisms all include: the device comprises a feeding unit, a pushing unit and a discharging unit;
the material loading unit comprises: the feeding mechanical hand comprises a feeding box, a paper separating box and a feeding mechanical hand, wherein the paper separating box is positioned on one side of the feeding box, and the feeding mechanical hand comprises: the feeding mechanical arm drives the feeding heads to reciprocate in the X direction and the Z direction;
the material pushing unit is positioned on one side of the feeding unit and comprises: the device comprises a pushing platform, a detection device and a control device, wherein the pushing platform is provided with a feeding station and a discharging station, rollers are arranged on the feeding station and the discharging station, and a lead frame sent to the pushing platform is sent to a motion platform of a downstream visual detection mechanism by the rollers;
the unloading unit is located one side of pushing away the material unit, it includes: the yields box, separate carton, defective products box, unloading manipulator, the yields box, separate carton, defective products box and set up side by side along the X direction, unloading manipulator includes: the blanking mechanism comprises a blanking mechanical arm and a plurality of blanking heads arranged on the blanking mechanical arm, wherein the blanking mechanical arm drives the plurality of blanking heads on the blanking mechanical arm to reciprocate in the X direction and the Z direction.
As the utility model discloses a lead frame defect detecting device's improvement, the reciprocating motion of X direction is carried out in the first lead screw drive that the material loading arm was arranged by an X direction, the lead screw seat of first lead screw is connected with the first cylinder transmission that the Z direction was arranged and is carried out the reciprocating motion of Z direction.
As the utility model discloses a lead frame defect detecting device's improvement, it is two rows to go up the stub bar, and the interval of two rows of stub bars of going up sets up according to the lead frame width.
As the utility model discloses a lead frame defect detecting device's improvement, visual inspection mechanism still including set up in linear electric motor one side supplementary push away the linear rail of material platform motion.
As the utility model discloses a lead frame defect detecting device's improvement, the yields box distribute in separate one side of carton, the defective products box distribute in separate the opposite side of carton, the yields box with separate the center spacing of carton with the defective products box keeps unanimous with the center spacing who separates the carton, the blanking head is two rows, and the interval of two rows of blanking heads sets up according to the lead frame width.
As the utility model discloses a lead frame defect detecting device's improvement, the second lead screw drive that the unloading arm was arranged by an X direction carries out the reciprocating motion of X direction, the lead screw seat of second lead screw is connected with the second cylinder transmission that the Z direction was arranged and is carried out the reciprocating motion of Z direction.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a lead frame defect detecting device has two and goes up the unloading station, and two are gone up the unloading station and are distributed in the both sides of a visual inspection mechanism, and visual inspection mechanism of unloading station sharing has been retrencied to two so, has retrencied the structure of device, and to unloading station on any, but continuous operation has reduced the time of waiting simultaneously, has improved the efficiency that detects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a top view of an embodiment of the lead frame defect detecting apparatus of the present invention, wherein the driving portions of the feeding manipulator, the discharging manipulator and both are not shown;
fig. 2 is a front view of the lead frame defect detecting apparatus of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the lead frame defect detecting device according to an embodiment of the present invention includes: two visual inspection stations, wherein arbitrary visual inspection station includes: the device comprises a first feeding and discharging mechanism 1, a visual detection mechanism 2 and a second feeding and discharging mechanism 3.
In an exemplary embodiment, the first loading and unloading mechanism 1 is located at one end of the vision inspection mechanism 2, the second loading and unloading mechanism 3 is located at the other end of the vision inspection mechanism 2, and the first loading and unloading mechanism 1 and the second loading and unloading mechanism 3 alternately send the integrated circuit lead frame to be inspected to the vision inspection mechanism 2 for vision inspection. Namely, when the first feeding and discharging mechanism 1 feeds, the second feeding and discharging mechanism 3 is in a discharging state, and after the visual inspection of the lead frame conveyed by the first feeding and discharging mechanism 1 is completed, the first feeding and discharging mechanism 1 performs discharging, and meanwhile, the second feeding and discharging mechanism 3 performs feeding. So set up, two go up unloading stations and share a visual inspection mechanism 2, simplified the structure of device. Meanwhile, for any feeding and discharging station, the visual detection can be completed when the lead frame runs to the middle position of the two stations, the moving stroke is short, the waiting time is shortened, and the detection efficiency is improved.
In an exemplary embodiment, the visual inspection mechanism 2 includes: linear electric motor 21, first detecting element 22, second detecting element 23, line rail 24, motion platform 25, linear electric motor 21 one end extend to first unloading mechanism 1 department, the other end extends to second unloading mechanism 3 department. The moving platform 25 is driven by the linear motor 21 to reciprocate between the first loading and unloading mechanism 1 and the second loading and unloading mechanism 3. Meanwhile, the linear rail 24 is disposed in parallel at one side of the linear motor 21, and the moving platform 25 is driven by the linear motor 21 to move along the linear rail 24. Therefore, the lead frames conveyed by the first loading and unloading mechanism 1 and the second loading and unloading mechanism 3 can be driven by the moving platform 25 to pass through the lower parts of the first detection unit 22 and the second detection unit 23 for visual detection.
In an exemplary embodiment, the first and second detecting units 22 and 23 are at least one, and the specific number of the first and second detecting units can be determined according to the items required to be visually detected. The first and second detection units 22, 23 have the same structure, and both include: the first detection unit 22 detects the back surface of the integrated circuit lead frame, and the second detection unit 23 detects the front surface of the integrated circuit lead frame.
In an exemplary embodiment, the light source 221 is a line light source, in the first detection unit 22, the detection camera 222 is located below the line light source 221 and performs visual detection through an optical path in the middle of the line light source 221, and in the second detection unit 23, the detection camera 222 is located above the line light source 221 and performs visual detection through an optical path in the middle of the line light source 221.
Since the two loading and unloading mechanisms have the same structure, the structure of one of the loading and unloading mechanisms will be described below. Any unloading mechanism that goes up includes: the device comprises a feeding unit A, a pushing unit B and a discharging unit C.
The material loading unit A is used for realizing the material loading of lead frame, and it is located the material loading end of visual detection mechanism 2, material loading unit A includes: a feeding box 11, a paper separation box 12 and a feeding manipulator 13.
Wherein the paper separating box 12 is located at one side of the material receiving box 11, and the feeding manipulator 13 includes: the feeding device comprises a feeding mechanical arm 131 and a plurality of feeding heads 132 arranged on the feeding mechanical arm 131, wherein the feeding mechanical arm 131 drives the plurality of feeding heads 132 to perform reciprocating motion in the X direction and the Z direction.
The loading head 132 is thus able to suck up the products by means of its suction cups and feed them to the pusher unit B. Specifically, since the lead frames in the magazine 11 are stacked, in order to avoid friction loss between the lead frames, a paper spacer is required to be placed between the lead frames to avoid contact between the lead frames on the upper and lower sides thereof. Therefore, the feeding head 132 first sucks the separator, feeds the separator into the separator box 12, and then sucks the lead frame with the separator removed thereon, and feeds the lead frame to the pusher unit B.
In this embodiment, the feeding heads 132 are arranged in two rows, and the distance is adjusted according to the width of the lead frame. The two rows of feeding heads 132 are mounted on the feeding mechanical arm 131 and cannot move independently. That is, the feeding head 132 finishes taking out the paper separation, moves to the paper separation box 12 to place the paper, returns to the material box 11 to take out the material, and places the material on the material pushing unit B.
In order to realize the driving of the loading mechanical arm 131, the loading mechanical arm 131 is driven by a first screw rod 15 arranged in the X direction to perform reciprocating motion in the X direction, and a screw rod seat of the first screw rod 15 is in transmission connection with a first air cylinder 16 arranged in the Z direction to perform reciprocating motion in the Z direction. The first screw rod 15 is driven by a motor, and the first air cylinder 16 is fixed on a portal frame 17.
In addition, in order to enable the loading robot 13 to suck lead frames at the same height each time, the bottom of the base where the feeding box 11 is located is connected with a lifting mechanism 5, and the lifting mechanism 5 is arranged to adjust the height of the loading unit a.
Specifically, the lifting mechanism 5 includes: the device comprises a stepping motor 51, a screw rod 52 and a lifting platform 53, wherein one end of the screw rod 52 is fixedly connected with the bottom of the lifting platform 53, and the screw rod 52 is matched with a motor shaft of the stepping motor 51 through oblique threads. When the stepping motor 51 works, due to the inclined thread fit relation between the stepping motor and the screw rod 52, the stepping motor can drive the screw rod 52 to lift, so that when a product in the feeding box 11 falls to a certain height, the lifting mechanism 5 can drive the base at the position to be highly lifted, and the feeding manipulator 13 can be conveniently fed.
The material pushing unit B is used for sending the lead frame from the feeding unit a to the visual inspection mechanism 2 for inspection, and specifically, the material pushing unit B is located at the feeding end of the visual inspection mechanism 2 and located at one side of the feeding unit a, and includes: the pushing platform 22B is provided with a feeding station and a discharging station, and the feeding station and the discharging station are both provided with rollers 22B1, so that a lead frame sent to the pushing platform 22B is sent to the moving platform 25 of the downstream visual detection mechanism 2 by the roller 22B1, and further sent to the lower parts of the first detection unit 22 and the second detection unit 23 for quality detection. Items of quality detection may include: lead frame surface quality, unfilled corners, etc.
When the visual detection mechanism 2 is used for feeding, the feeding station of the material pushing platform 22B is aligned with the visual detection mechanism 2, the roller 22B1 rolls the frame onto the moving platform 25, and meanwhile, the discharging manipulator moves to the discharging station to take away the detected frame for classification.
When the visual detection mechanism 2 is used for blanking, the blanking station is aligned with the visual detection mechanism 2, a mechanical arm on the moving platform 25 sends the detected frame part into the blanking station, and the rest frame still remaining on the moving platform 25 is driven by the roller of the blanking station to be separated from the moving platform 25 until the rest frame completely enters the blanking station. Meanwhile, the feeding manipulator moves to the feeding station to place a new frame on the feeding station.
I.e. the pushing platform 22 is not coupled with the moving platform 25. When the visual inspection mechanism 2 is used for feeding, the feeding claw carries out frame feeding; when the visual inspection mechanism 2 is used for blanking, the feeding claw carries out frame feeding so as to circulate.
Unloading unit C is used for receiving the lead frame after finishing detecting, and it is located vision detection mechanism 2's unloading end, it includes: a good product box 31, a paper separation box 32, a defective product box 33 and a feeding manipulator 34.
Wherein, non-defective products box 31, separate carton 32, defective products box 33 and set up side by side along the X direction, unloading manipulator 34 includes: the blanking mechanism comprises a blanking mechanical arm 341 and a plurality of blanking heads arranged on the blanking mechanical arm 341, wherein the blanking mechanical arm 341 drives the plurality of blanking heads 342 on the blanking mechanical arm to reciprocate in the X direction and the Z direction.
Therefore, the blanking head 342 can suck the product through its suction cup, and place the product into the good box 31 or the defective box 33 according to the detection result. At this time, the blanking head 342 first sucks the separation paper from the separation paper box 32, then respectively sends the separation paper to the good product box 31 and the defective product box 33, then sucks the detected lead frame, and places the lead frame into the good product box 31 or the defective product box 33 according to the detection result. The pushing platform 22B is driven by its power part, such as an air cylinder, etc., to return to the loading end for loading for the next detection.
In this embodiment, the good product boxes 31 are distributed on one side of the paper separating box 32, and the defective product boxes 33 are distributed on the other side of the paper separating box 32. The blanking heads 342 are arranged in two rows, and the distance is adjusted according to the width of the lead frame. The two rows of blanking heads 342 are mounted on the blanking mechanical arm 341 and cannot move independently from each other. Namely, if the product is qualified, the blanking head 342 takes out the separating paper, moves to the good product box 31 to place the paper, and then places the qualified product in the good product box 31; otherwise, it is put in a defective case 33.
In order to realize the driving of the blanking mechanical arm 341, the blanking mechanical arm 341 is driven by a second screw 35 arranged in the X direction to perform reciprocating motion in the X direction, and a screw seat of the second screw 35 is in transmission connection with a second air cylinder 36 arranged in the Z direction to perform reciprocating motion in the Z direction. The second screw 35 is driven by a motor, and the second cylinder 36 is fixed on the gantry 17.
To sum up, the utility model discloses a lead frame defect detecting device has two and goes up the unloading station, and two are gone up the unloading station and distribute in the both sides of a visual inspection mechanism, and visual inspection mechanism of unloading station sharing has been retrencied to so two, has retrencied the structure of device, and to unloading station on any, but continuous operation has reduced the time of waiting, has improved the efficiency that detects simultaneously.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A lead frame defect detecting device, characterized in that, lead frame defect detecting device includes: the device comprises a first feeding and discharging mechanism, a visual detection mechanism and a second feeding and discharging mechanism;
the first feeding and discharging mechanism is positioned at one end of the visual detection mechanism, the second feeding and discharging mechanism is positioned at the other end of the visual detection mechanism, and the first feeding and discharging mechanism and the second feeding and discharging mechanism alternately send the integrated circuit lead frame to be detected to the visual detection mechanism for visual detection;
the visual inspection mechanism includes: linear electric motor, first detecting element, second detecting element, motion platform, linear electric motor one end extends to first unloading mechanism department of going up, and the other end extends to unloading mechanism department on the second, motion platform by linear electric motor drive in carry out reciprocating motion between the unloading mechanism on first unloading mechanism and the second, first, two detecting element all set up to at least one, and the two all includes: the first detection unit detects the back of the integrated circuit lead frame, and the second detection unit detects the front of the integrated circuit lead frame.
2. The lead frame defect detecting device of claim 1, wherein the light source is a line light source, the detecting camera is located below the line light source in the first detecting unit and performs visual detection through a light path in the middle of the line light source, and the detecting camera is located above the line light source in the second detecting unit and performs visual detection through a light path in the middle of the line light source.
3. The lead frame defect detecting device of claim 1, wherein the first and second loading and unloading mechanisms each comprise: the device comprises a feeding unit, a pushing unit and a discharging unit;
the material loading unit comprises: the feeding mechanical hand comprises a feeding box, a paper separating box and a feeding mechanical hand, wherein the paper separating box is positioned on one side of the feeding box, and the feeding mechanical hand comprises: the feeding mechanical arm drives the feeding heads to reciprocate in the X direction and the Z direction;
the material pushing unit is positioned on one side of the feeding unit and comprises: the device comprises a pushing platform, a detection device and a control device, wherein the pushing platform is provided with a feeding station and a discharging station, rollers are arranged on the feeding station and the discharging station, and a lead frame sent to the pushing platform is sent to a motion platform of a downstream visual detection mechanism by the rollers;
the unloading unit is located one side of pushing away the material unit, it includes: the yields box, separate carton, defective products box, unloading manipulator, the yields box, separate carton, defective products box and set up side by side along the X direction, unloading manipulator includes: the blanking mechanism comprises a blanking mechanical arm and a plurality of blanking heads arranged on the blanking mechanical arm, wherein the blanking mechanical arm drives the plurality of blanking heads on the blanking mechanical arm to reciprocate in the X direction and the Z direction.
4. The lead frame defect detecting device of claim 3, wherein the loading arm is driven by a first lead screw arranged in the X direction to reciprocate in the X direction, and a lead screw seat of the first lead screw is in transmission connection with a first cylinder arranged in the Z direction to reciprocate in the Z direction.
5. The lead frame defect detecting device of claim 3, wherein the feeding heads are arranged in two rows, and the distance between the two rows of feeding heads is set according to the width of the lead frame.
6. The lead frame defect detecting device of claim 3, wherein the vision detecting mechanism further comprises a linear rail arranged on one side of the linear motor and used for assisting the pushing platform in moving.
7. The lead frame defect detecting device according to claim 3, wherein the good product boxes are distributed on one side of the paper separating box, the defective product boxes are distributed on the other side of the paper separating box, the center distance between the good product boxes and the paper separating box is consistent with the center distance between the defective product boxes and the paper separating box, the blanking heads are arranged in two rows, and the distance between the two rows of blanking heads is set according to the width of the lead frame.
8. The lead frame defect detecting device according to claim 3, wherein the blanking mechanical arm is driven by a second lead screw arranged in the X direction to reciprocate in the X direction, and a lead screw seat of the second lead screw is in transmission connection with a second cylinder arranged in the Z direction to reciprocate in the Z direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807007.9U CN211515248U (en) | 2019-10-25 | 2019-10-25 | Lead frame defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807007.9U CN211515248U (en) | 2019-10-25 | 2019-10-25 | Lead frame defect detection device |
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| Publication Number | Publication Date |
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| CN211515248U true CN211515248U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921807007.9U Active CN211515248U (en) | 2019-10-25 | 2019-10-25 | Lead frame defect detection device |
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| CN (1) | CN211515248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950981A (en) * | 2022-05-18 | 2022-08-30 | 苏州普洛泰科精密工业有限公司 | Semiconductor lead frame detection equipment and detection system thereof |
-
2019
- 2019-10-25 CN CN201921807007.9U patent/CN211515248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950981A (en) * | 2022-05-18 | 2022-08-30 | 苏州普洛泰科精密工业有限公司 | Semiconductor lead frame detection equipment and detection system thereof |
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