CN219335038U

CN219335038U - Automatic chip detection device

Info

Publication number: CN219335038U
Application number: CN202223316033.6U
Authority: CN
Inventors: 刘星; 汝强强
Original assignee: Wuxi Autowell Technology Co Ltd
Current assignee: Wuxi Aotewei Kexin Semiconductor Technology Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-07-14
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to an automatic chip detection device, which comprises a feeding part, a conveying part and a detection part, wherein: the feeding part is configured to convey a magazine storing lead frames to be detected to a feeding position; the conveying part comprises a material taking mechanism and a conveying mechanism, wherein the material taking mechanism is configured to take out and press the lead frames to be detected in the material box to the conveying mechanism, and send the lead frames which are qualified in detection back to the material box; the conveying mechanism is configured to fix and convey the lead frame; the detection section is configured to detect a chip and a bonding wire on a lead frame on the conveying mechanism. The automatic transport of feed box is carried out in order to realize automatic unloading through material loading portion, and the transport portion carries the lead frame that waits to detect in the feed box to detecting position, and rethread detection portion detects a plurality of indexes of lead frame, and whole journey is automatic, and is efficient.

Description

Automatic chip detection device

Technical Field

The utility model relates to the technical field of semiconductor chip packaging, in particular to an automatic chip detection device.

Background

In the field of semiconductor chip packaging technology, chips are fixed on a frame, and this process is called die bonding or die mounting; the bonding process of connecting the nodes on the chip to the nodes on the frame by wire bonds is known as bonding. And detecting the bonded frame and chip to check whether the frame and chip have defects. Common detection items include: abnormal chip mounting (askew, broken, missed, misplaced, etc.), abnormal wire bonding (askew, multi-line, few-line, misplaced, broken, etc.).

The traditional detection method is characterized in that the manual feeding and discharging are adopted, the appearance of one outer surface of the chip is detected, the detection method has certain limitation, the welding quality between the welding wire and the chip cannot be detected, and the detection efficiency is low.

Disclosure of Invention

In order to solve the problems in the prior related art, the application provides a chip automatic detection device for efficiently and automatically detecting various defects of a chip.

The technical scheme of the chip automatic detection device in the utility model is as follows:

the utility model provides a chip automatic checkout device includes material loading portion, transport portion and detection portion, wherein:

the feeding part is configured to convey a magazine storing lead frames to be detected to a feeding position;

the conveying part comprises a material taking mechanism and a conveying mechanism, wherein the material taking mechanism is configured to take out and press the lead frames to be detected in the material box to the conveying mechanism, and send the lead frames which are qualified in detection back to the material box; the conveying mechanism is configured to fix and convey the lead frame;

the detection section is configured to detect a chip and a bonding wire on a lead frame on the conveying mechanism.

The automatic transport of feed box is carried out in order to realize automatic unloading through material loading portion, and the transport portion carries the lead frame that waits to detect in the feed box to detecting position, and rethread detection portion detects a plurality of indexes of lead frame, and whole journey is automatic, and is efficient.

Optionally, the conveying mechanism includes a bearing assembly, a compacting assembly and a translating assembly, wherein:

the carrier assembly is configured to carry the lead frame;

the compressing component is positioned on the first side edge of the bearing component and is configured to compress the lead frame on the bearing component;

the bearing assembly and the pressing assembly are both arranged on the translation assembly, and the translation assembly is configured to drive the lead frame to move along the first direction.

The lead frame borne by the bearing component is pressed by the pressing component, and the lead frame is driven to move by the translation component, so that the lead frame is ensured to be stable in the moving process.

Optionally, the bearing assembly includes a support frame, a detection plate and a locating pin, wherein:

the detection plate is installed on the support frame through the locating pin, and magnet is still provided with on the terminal surface of support frame and detection plate contact, and the support frame is installed on translation subassembly.

Through setting up detachable pick-up board, improve the compatibility, be convenient for switch corresponding pick-up board when switching not unidimensional lead frame.

Optionally, the compressing assembly includes a pressing plate, a first lifting member and a first driving member, a fixed end of the first driving member is fixedly connected with the bearing assembly, a movable end of the first driving member is connected with a fixed end of the first lifting member, the pressing plate is mounted at the movable end of the first lifting member, the first lifting member is configured to drive the pressing plate to lift, the first driving member is configured to drive the pressing plate to move along a second direction, and the first direction is perpendicular to the second direction.

Lead frames on the detection plate are pressed through the cooperation of the pressing plate and the first lifting piece, and the position of the pressing plate in the width direction is convenient to adjust through the arrangement of the first driving piece so as to switch lead frames with different widths.

The optional take off mechanism includes a second drive member, a cleat assembly and a moving plate, wherein:

the clamping plate assembly is configured to clamp or unclamp a lead frame carried on the transport mechanism;

the fixed end of the second driving piece is fixedly connected with the conveying mechanism, the movable end of the second driving piece is in transmission connection with the movable plate, and the second driving piece is configured to drive the clamping plate assembly to move along the first direction.

The clamping plate assembly clamping the lead frame is driven by the second driving piece to move along the first direction, so that the lead frame can translate on the detection plate.

Optionally, the cleat assembly includes a first cleat, a second cleat, a third drive member, and a fourth drive member, wherein:

the fixed ends of the third driving piece and the fourth driving piece are fixedly connected with the movable plate, the movable end of the third driving piece is fixedly connected with the first clamping plate, the movable end of the fourth driving piece is fixedly connected with the second clamping plate, and the first clamping plate and the second clamping plate are driven by the third driving piece and the fourth driving piece to move close to and far away from each other respectively.

The function of clamping and loosening the lead frame is realized by arranging the first clamping plate and the second clamping plate which are vertically corresponding.

Optionally, the extracting mechanism further includes an induction assembly, a support bar, and a guide bar, wherein:

one end of the supporting rod is fixedly connected with the movable end of the second driving piece, and the other end of the supporting rod is sleeved on the guide rod;

the induction component comprises an induction piece and two inductors, the induction piece is fixedly arranged on the support rod and is configured to move along with the support rod, the two inductors are fixedly arranged on the movable plate, and two ends of the guide rod are fixedly connected with the two inductors respectively;

the material taking mechanism further comprises a jacking component, and the jacking component is arranged on two sides of the supporting rod and is abutted with the supporting rod.

Detecting whether the material taking mechanism is stuck in the process of driving the lead frame by arranging an induction component; the setting of tight subassembly in top provides the detection threshold value, avoids inertia to the influence of card material detection.

Optionally, the material taking mechanism further comprises a locking assembly, the locking assembly comprises a locking cylinder and a locking block with a limiting notch facing downwards, the fixed end of the locking cylinder is fixedly connected with the movable plate, the locking block is mounted at the movable end of the locking cylinder, a positioning protrusion is formed above the supporting rod, and the locking cylinder is configured to drive the locking block to press down to enable the limiting notch to be abutted with the positioning protrusion and drive the locking block to be far away from the positioning protrusion.

Through setting up locking component, avoid extracting mechanism can compress tightly lead frame when detecting, avoid lead frame to take place the drunkenness.

Optionally, the detecting part comprises a front detecting camera and a side detecting camera, and the front detecting camera is vertically installed above the transporting part and is configured to photograph and detect the front of the lead frame to be detected, which is carried on the conveying mechanism; the side detection camera is obliquely installed above the transport section, and an inclination angle of the side detection camera is configured to be adjustable.

And a plurality of groups of cameras are arranged to detect the positions to be detected of the lead frame from a plurality of directions, so that the detection of various defects is realized.

Optionally, the NG discharge portion includes a NG handling mechanism and a NG conveying mechanism, wherein:

the NG conveying mechanism is configured to convey empty NG cartridges and NG cartridges loaded with lead frames that are failed in detection;

the NG handling mechanism is configured to handle empty NG cartridges on the NG handling mechanism to an NG loading level and to handle NG cartridges loaded with a failed detection lead frame onto the NG handling mechanism.

Through setting up NG transport mechanism and NG conveying mechanism, realize carrying out ejection of compact to the lead frame that the testing result is NG.

Alternatively, two transport portions are provided, and the two transport portions alternately take out the lead frames to be detected from the feeding portion and convey the lead frames to the detecting portion.

By arranging two conveying parts, the lead frames are alternately conveyed, and the detection efficiency of the equipment is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic perspective view of an automatic chip inspection device according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a cartridge handling mechanism and a cartridge pushing mechanism provided in one embodiment of the present application;

FIG. 3 is a schematic view of the upper and lower compression assemblies of FIG. 2;

FIG. 4 is a schematic view of a transport section provided in one embodiment of the present application;

FIG. 5 is a schematic view of the carrier assembly of FIG. 4;

FIG. 6 is a schematic view of the mounting location and configuration of the compression assembly of FIG. 4;

FIG. 7 is a schematic view of the mounting location and configuration of the take off mechanism of FIG. 4;

FIG. 8 is a side elevational view of the sensing plate, take off mechanism and hold down assembly of FIG. 4;

FIG. 9 is a schematic view of the take off mechanism of FIG. 4;

FIG. 10 is a schematic view of the take off mechanism of FIG. 9 from another perspective;

FIG. 11 is a schematic view of one embodiment of the take off mechanism of FIG. 9;

fig. 12 is a schematic view of another embodiment of the take off mechanism of fig. 9.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

As shown in fig. 1, the chip automatic detection device provided in the present application includes a feeding portion 1, a transporting portion 2, and a detecting portion 3, wherein: the feeding part 1 is configured to carry a magazine storing lead frames to be detected to a feeding position; the conveying part 2 comprises a material taking mechanism and a conveying mechanism, wherein the material taking mechanism is arranged at the side edge of the conveying mechanism and is configured to take out and press a lead frame to be detected in the material box to the conveying mechanism and send the lead frame which is qualified in detection back to the material box; the conveying mechanism is configured to fix and convey the lead frame; the detecting unit 3 is configured to detect a chip and a bonding wire on a lead frame on the conveying mechanism.

In one possible embodiment, the loading section 1 comprises a magazine transport mechanism 11, a magazine handling mechanism 12 and a pushing mechanism 13, wherein: the magazine transport mechanism 11 is configured to transport a magazine loaded with a lead frame to be inspected to an upper discharge position, and transport a magazine loaded with a lead frame that is inspected to a lower discharge position; optionally, the magazine conveying mechanism 11 includes a feeding mechanism and a discharging mechanism that are disposed up and down, both of which are provided with conveying belts, the feeding mechanism is configured to carry and convey a magazine loaded with a lead frame to be detected, and the discharging mechanism is configured to carry and convey a magazine loaded with a lead frame that is qualified for detection.

The magazine handling mechanism 12 is configured to handle a magazine located at a loading level to a pushing level, and to handle a magazine loaded with a lead frame that is acceptable for inspection to the magazine conveying mechanism 11;

the pushing mechanism 13 is configured to push out the lead frame in the magazine located at the pushing position so that one end of the lead frame overlaps the conveying mechanism. In one implementation, the pushing mechanism comprises a pushing plate and a pushing plate driving assembly, the movable end of the pushing plate driving assembly is connected with the pushing plate, and the pushing plate pushes the lead frame in the material box out of the material box and is lapped on the conveying mechanism under the driving of the pushing plate driving assembly. Alternatively, the pusher plate drive assembly includes a pusher plate drive motor, although other power elements such as air cylinders, electric cylinders, etc. may be used, as will not be repeated here

As shown in fig. 2, the feeding portion further includes a translation mechanism 14 and a lifting mechanism 15, the magazine handling mechanism 12 is slidably mounted on the lifting mechanism 14, the lifting mechanism 14 is slidably mounted on the translation mechanism 15, and the magazine handling mechanism 12 is driven by the translation mechanism 14 and the lifting mechanism 15 to move in the horizontal direction and the vertical direction to reach a predetermined pushing position.

As shown in fig. 3, the magazine handling mechanism 12 includes a mounting frame 121, a lifting motor 122, an upper pressing assembly 123, and a lower pressing assembly 124, wherein; one end of the lower pressing assembly 124 is fixedly connected with the mounting frame 121, and the other end of the lower pressing assembly 124 is configured to hold the material box from below; the fixed end of the lifting motor 122 is fixedly connected with the mounting frame 121, the movable end of the lifting motor 122 is fixedly connected with the upper pressing assembly 123, and the lifting motor 122 is configured to drive the upper pressing assembly 123 to lift so as to clamp or loosen the material box; the upper pressing assembly 123 comprises a lifting plate 1231, a pressing block 1232 and a guide rod 1233, one end of the lifting plate 1231 is fixedly connected with the movable end of the lifting motor 122, the upper end of the guide rod 1233 is slidably connected with the other end of the lifting plate 1231 through a shaft sleeve, and the lower end of the guide rod 1233 is fixedly connected with the pressing block 1232. The lower pressing assembly 124 includes a lower support plate 1241, one end of the lower support plate 1241 is fixedly connected with the mounting frame 121, and the other end of the lower support plate 1241 is used for supporting the cartridge from below the cartridge. Optionally, the magazine handling mechanism 12 further includes a positioning rod 125, one end of the positioning rod 125 is fixedly connected with the mounting frame 121, the other end of the positioning rod 125 is abutted to the magazine, and a sensor is further disposed at the other end of the positioning rod 125 and is configured to sense whether the magazine is in place. By providing the locating lever 125 and the sensor, it is ensured that the cartridge has been transported in place before clamping, avoiding clamping of a skewed cartridge. Optionally, at least two groups of positioning rods 125 are arranged up and down, and the sensing ends of the sensors of the two groups of positioning rods 125 are located on the same vertical plane. The side surface of the material box is limited by arranging the positioning rods 125 with the upper and lower groups of sensing ends positioned on the same vertical plane. In practical application, the upper and lower positioning rods 125 are simultaneously contacted with the side surfaces of the material box until the sensors on the two positioning rods 125 sense the material box, which means that the material box is in place, and then the lifting motor 122 drives the lifting plate 1231 to descend so as to press the material box.

As shown in fig. 4, in an embodiment of the present application, two transport portions 2 are disposed in parallel, and the two transport portions 2 are matched with a pushing mechanism 13, and lead frames to be detected are alternately taken out from the feeding portion 1 and conveyed to the detecting portion 3, that is, when one of the transport portions 2 carries the lead frames and is being detected by the detecting portion 3, the other transport portion 2 can perform feeding and discharging operations, so that the operation efficiency of the device is improved. Each transport section 2 comprises a take-off mechanism 21 and a transport mechanism 22, wherein the transport mechanism 22 comprises a carrier assembly 221, a compacting assembly 222 and a translating assembly 223. The carrier assembly 221 is configured to carry a leadframe; the compressing assembly 222 is located at a first side of the carrying assembly 221 and is configured to compress the lead frame on the carrying assembly 221; the carrying component 221 and the compressing component 222 are both mounted on the translating component 223, and the translating component 223 is configured to drive the lead frame to move along the first direction. In one possible embodiment, the translation assembly 223 is further configured to move the lead frame along a second direction perpendicular to the first direction to avoid interference during transportation of the lead frame to avoid another set of transport portions 2.

Fig. 5 is a schematic structural diagram of a carrier assembly 221, in one implementation, the carrier assembly 221 includes a support frame 2211, a detection board 2212, and a positioning pin 2213, where: the detection plate 2212 is mounted on the support frame 2211 through the positioning pin 2213, a magnet 2214 is further arranged on the end surface, in contact with the detection plate 2212, of the support frame 2211, and the support frame 2211 is mounted on the translation assembly 223. By providing the detachable pickup plate 2212, compatibility is improved, and switching of the corresponding pickup plate 2212 is facilitated when switching different-sized lead frames.

Fig. 6-8 are schematic diagrams of the installation positions of the material taking mechanism 21 and the conveying mechanism 22, and as shown in fig. 6 and 7, the material taking mechanism 21 is installed on one side of the carrying component 221, the compressing component 222 is installed on the other side of the carrying component 221, and the material taking mechanism 21 and the compressing component 222 both apply clamping or loosening actions to the lead frame carried by the carrying component 221. Alternatively, the compressing assembly 222 includes a pressing plate 2221, a first lifting member 2222 and a first driving member 2223, where a fixed end of the first driving member 2223 is fixedly connected with the bearing assembly 221, a movable end of the first driving member 2223 is connected with a fixed end of the first lifting member 2222, the pressing plate 2221 is installed at the movable end of the first lifting member 2222, the first lifting member 2222 is configured to drive the pressing plate 2221 to lift, and the first driving member 2223 is configured to drive the pressing plate 2221 to move along the second direction, and the first direction is perpendicular to the second direction.

Optionally, the first lifting element 2222 is an air cylinder, the first driving element 2223 is a servo motor, and the pressing mechanism 222 is slidably mounted on a guide rail arranged along the second direction, and may slide along the slide rail under the driving of the first driving element. The lead frame on the detection plate 2212 is pressed through the cooperation of the pressing plate 2221 and the first lifting piece 2222, and the position of the pressing plate 2221 in the width direction is convenient to adjust through the arrangement of the first driving piece 2223, so that the lead frames with different widths can be switched.

As shown in fig. 8, the end of the take-out mechanism 21 is not in contact with the detection plate 2212, facilitating replacement of the detection plate 2212 of the corresponding specification when changing lead frames of different widths. In addition, the projection of the pressing plate of the pressing assembly 222 in the vertical direction coincides with the detection plate 2212, so as to press the lead frame on the detection plate 2212, when the equipment switches the lead frames with different specifications, the first driving piece 2223 controls the pressing mechanism 222 to move along the width direction of the detection plate 2212, the detection plate 2212 with the corresponding specification is replaced manually, then the first driving piece 2223 controls the pressing mechanism 222 to move to a proper pressing position, and the new-specification lead frame is continuously pressed.

The following describes the extracting mechanism 21 further with reference to fig. 9-12, fig. 9 is a schematic structural view of the extracting mechanism 21 in one embodiment of the present application, and fig. 10 is a schematic view of another view of fig. 9, in this embodiment, the extracting mechanism 21 includes a second driving member 211, a clamping plate assembly 213, and a moving plate 212, where: the clamping plate assembly 213 is configured to clamp or unclamp a lead frame carried on the transport mechanism 22; the fixed end of the second driving member 211 is fixedly connected with the conveying mechanism 22, the movable end of the second driving member 211 is in transmission connection with the moving plate 212, and the second driving member 211 is configured to drive the clamping plate assembly 213 to move along the first direction. The second driving member 211 drives the clamping plate assembly 213 clamping the lead frame to move along the first direction, so that the lead frame translates on the detection plate 2212. Optionally, the extracting mechanism 21 further includes a sensing assembly 214, a support rod 216, and a guide rod 215, wherein: one end of the supporting rod 216 is fixedly connected with the movable end of the second driving piece 211, and the other end of the supporting rod 216 is sleeved on the guide rod 215; the sensing assembly 214 includes a sensing element 2141 and two sensors 2142, wherein the sensing element 2141 is fixedly mounted on the support rod 216 and configured to move along with the support rod 216, the two sensors 2142 are fixedly mounted on the moving plate 212, and two ends of the guide rod 215 are fixedly connected with the two sensors 2142 respectively; the material taking mechanism 21 further comprises a propping assembly 217, and the propping assembly 217 is respectively arranged at two sides of the supporting rod 216 and is abutted with the supporting rod 216. Detecting whether the material taking mechanism 21 is stuck in the process of driving the lead frame by arranging the sensing component 214; the provision of the take-up assembly 217 provides a detection threshold that avoids the effects of inertia on the stuck material detection. When the clamping plate assembly 213 drives the lead frame to move along the first direction, if the clamping occurs, the resistance of the clamping plate assembly 213 is greater than the thrust provided by the propping assembly 217, the clamping plate assembly 213 and the supporting rod 216 are dislocated, that is, the clamping plate assembly 213 stops moving under the influence of the resistance, but the supporting rod 216 continues to move along the first direction under the driving of the second driving member 211, and when the sensing member 2141 mounted on the supporting rod 216 moves to the sensing area of the sensor 2142 mounted on the moving plate 212, the controller determines that the clamping occurs in the material taking mechanism 21, thereby stopping the equipment. The sensors 2142 are disposed on both sides of the sensor 2141, so as to ensure that the moving plate 212 is stuck during the movement in the front-back direction.

Fig. 11 is a schematic structural diagram of the clamping plate assembly 213 in one embodiment, the clamping assembly 217 includes two clamping cylinders 2171 disposed with the support rod 216 as a middle line mirror image, a fixed end of the clamping cylinder 2171 is fixedly connected to the moving plate 212, a movable end of the clamping cylinder 2171 abuts against the support rod 216, and the clamping cylinders 2171 on two sides provide two pushing forces in two directions to the middle moving plate 212.

Fig. 12 is a schematic structural diagram of the clamping plate assembly 213 according to another implementation of the present application, in this embodiment, the tightening assembly 217 includes two springs 2172 sleeved on the guide rod 215, the springs 2172 are separately provided on two support rods 216, and the effect and the function of the springs 2172 are the same as those of the tightening cylinder 2171 in fig. 9, so as to provide a certain resistance to the support rods 216 in the moving direction of the support rods 216, so as to avoid frequent alarm caused by the influence of structural inertia on the sensing assembly 214, and cause excessive erroneous judgment.

Referring again to fig. 9, in one implementation, the second driving member 211 includes a servo motor, a synchronous belt, a screw rod and a bearing seat, where a fixed end of the servo motor is fixedly installed on the conveying mechanism 22, a movable end of the servo motor is cooperatively connected with one end of the synchronous belt, the other end of the synchronous belt is in transmission connection with the screw rod, the bearing seat is installed on the screw rod arranged along the first direction, one end of the supporting rod 216 is fixedly connected with the bearing seat, the servo motor drives the synchronous belt to rotate, thereby driving the screw rod to rotate, and the supporting rod 216 is driven to move on the screw rod in synchronization with the bearing seat, so as to achieve the effect of driving the upper clamping plate assembly 213 to translate along the first direction.

Fig. 10 is a schematic view of another angle of the take off mechanism 21, as shown in fig. 9 and 10, the cleat assembly 213 includes a first cleat 2131, a second cleat 2132, a third drive 2133, and a fourth drive 2134, wherein: the fixed ends of the third driving piece 2133 and the fourth driving piece 2134 are fixedly connected with the moving plate 212, the movable end of the third driving piece 2133 is fixedly connected with the first clamping plate 2131, the movable end of the fourth driving piece 2134 is fixedly connected with the second clamping plate 2132, and the first clamping plate 2131 and the second clamping plate 2132 are driven by the third driving piece 2133 and the fourth driving piece 2134 to move close to and far away from each other respectively. The function of clamping and unclamping the lead frame is achieved by providing a first clamping plate 2131 and a second clamping plate 2132 which correspond up and down.

Referring back to fig. 11, optionally, the extracting mechanism 21 further includes a locking assembly 218, where the locking assembly 218 includes a locking cylinder and a locking block with a limiting notch facing downward, a fixed end of the locking cylinder is fixedly connected with the moving plate 212, the locking block is mounted on a movable end of the locking cylinder 218, a positioning protrusion is formed above the supporting rod 216, and the locking cylinder is configured to drive the locking block to press down to make the limiting notch abut against the positioning protrusion, and drive the locking block to be far away from the positioning protrusion. By providing locking assembly 218, take-off mechanism 21 is able to compress the lead frame during inspection to avoid lead frame play.

Optionally, the detecting portion 3 includes a front face detecting camera and a side face detecting camera, the front face detecting camera is vertically installed above the transporting portion 2 and configured to take a photograph of the front face of the lead frame to be detected carried on the transporting mechanism 22; the side detection camera is obliquely installed above the transport section, and an inclination angle of the side detection camera is configured to be adjustable. The positions to be detected of the lead frame are detected from multiple directions by arranging multiple groups of cameras, so that detection of multiple defects is realized. Optionally, the detecting portion 3 includes five cameras, four cameras configured to detect toward bonding wires connected between the lead frame carried on the transporting portion 2 and the chip, respectively, and one camera detects toward the front face of the chip on the lead frame carried on the transporting portion 2. Through setting up five cameras, can carry out five directions comprehensive detections of lead frame to be detected, avoid the omission. Optionally, the detecting part 3 further comprises a camera adjusting component for adjusting the camera position, the camera adjusting component being configured to adjust the angle and/or position of a camera mounted on the camera adjusting component. In one possible embodiment, the four cameras are equipped with camera adjustment assemblies, except for the vertically downward front face detection camera. The camera adjusting component is arranged to adjust the position of the camera, so that the camera is accurate in focusing, clear in photographing and suitable in image size.

In one possible embodiment, the NG outfeed section comprises a NG handling mechanism and a NG transport mechanism, wherein: the NG conveying mechanism is configured to convey empty NG cartridges and NG cartridges loaded with lead frames that are failed in detection; the NG handling mechanism is configured to handle empty NG cartridges on the NG handling mechanism to an NG loading level and to handle NG cartridges loaded with a failed detection lead frame onto the NG handling mechanism. Through setting up NG transport mechanism and NG conveying mechanism, realize carrying out ejection of compact to the lead frame that the testing result is NG. Optionally, the NG transport mechanism has the same structure as the magazine transport mechanism in the feeding portion, and the NG transport mechanism has the same structure as the magazine transport mechanism in the feeding portion. The NG transport mechanism clamps the NG magazine and carries the NG magazine to NG material loading level, carries the lead frame that the testing result is NG to the NG magazine through feeding mechanism 21 in, after the NG magazine is full, the NG transport mechanism carries the NG magazine of full material to NG transport mechanism again, then presss from both sides again from both sides empty magazine on the NG transport mechanism for accept new NG incoming material.

The utility model has been described above in sufficient detail with a certain degree of particularity. It will be appreciated by those of ordinary skill in the art that the descriptions of the embodiments are merely exemplary and that all changes that come within the true spirit and scope of the utility model are desired to be protected. The scope of the utility model is indicated by the appended claims rather than by the foregoing description of the embodiments.

Claims

1. The utility model provides a chip automatic checkout device which characterized in that, chip automatic checkout device includes material loading portion, transport portion and detection portion, wherein:

the conveying part comprises a material taking mechanism and a conveying mechanism, wherein the material taking mechanism is configured to take out and press lead frames to be detected in the material box to the conveying mechanism, and send the lead frames which are qualified to be detected back to the material box; the conveying mechanism is configured to fix and convey the lead frame;

the detection part is configured to detect a chip and a bonding wire on the lead frame on the conveying mechanism.

2. The automated chip inspection device of claim 1, wherein the transport mechanism comprises a carrier assembly, a hold down assembly, and a translation assembly, wherein:

the carrier assembly is configured to carry the lead frame;

the pressing component is positioned on the first side edge of the bearing component and is configured to press the lead frame on the bearing component;

the bearing assembly and the pressing assembly are both installed on the translation assembly, and the translation assembly is configured to drive the lead frame to move along a first direction.

3. The automatic chip inspection device of claim 2, wherein the carrier assembly comprises a support frame, an inspection plate, and a positioning pin, wherein:

the detection plate is installed on the support frame through the locating pin, a magnet is further arranged on the end face, in contact with the detection plate, of the support frame, and the support frame is installed on the translation assembly.

4. The automatic chip inspection device according to claim 2, wherein the pressing assembly comprises a pressing plate, a first lifting member and a first driving member, a fixed end of the first driving member is fixedly connected with the bearing assembly, a movable end of the first driving member is connected with a fixed end of the first lifting member, the pressing plate is mounted on the movable end of the first lifting member, the first lifting member is configured to drive the pressing plate to lift, the first driving member is configured to drive the pressing plate to move along a second direction, and the first direction is perpendicular to the second direction.

5. The automatic chip inspection device of claim 1, wherein the take-off mechanism comprises a second drive member, a clamping plate assembly, and a moving plate, wherein:

6. The automatic chip inspection device of claim 5, wherein the clamping plate assembly comprises a first clamping plate, a second clamping plate, a third driving member, and a fourth driving member, wherein:

7. The automatic chip inspection device of claim 5, wherein the take-off mechanism further comprises an induction assembly, a support bar, and a guide bar, wherein:

the induction component comprises an induction piece and two inductors, wherein the induction piece is fixedly arranged on the support rod and is configured to move along with the support rod, the two inductors are fixedly arranged on the moving plate, and two ends of the guide rod are fixedly connected with the two inductors respectively;

the material taking mechanism further comprises a jacking component, wherein the jacking component is arranged on two sides of the supporting rod respectively and is in butt joint with the supporting rod.

8. The automatic chip detection device according to claim 7, wherein the material taking mechanism further comprises a locking assembly, the locking assembly comprises a locking cylinder and a locking block with a limiting notch facing downwards, the fixed end of the locking cylinder is fixedly connected with the moving plate, the locking block is installed at the movable end of the locking cylinder, a positioning protrusion is formed above the supporting rod, and the locking cylinder is configured to drive the locking block to press down to enable the limiting notch to be abutted with the positioning protrusion and drive the locking block to be far away from the positioning protrusion.

9. The automatic chip inspection device according to claim 1, wherein the inspection section includes a front inspection camera and a side inspection camera, the front inspection camera being vertically installed above the transportation section and configured to perform photographing inspection on a front face of a lead frame to be inspected carried on the transportation mechanism; the side detection camera is installed obliquely above the transport section, and an inclination angle of the side detection camera is configured to be adjustable.

10. The automatic chip inspection device of claim 1, further comprising an NG discharge section comprising an NG handling mechanism and an NG transport mechanism, wherein:

the NG conveying mechanism is configured to convey empty NG cartridges and NG cartridges loaded with lead frames that fail detection;

the NG handling mechanism is configured to handle the empty NG cartridge on the NG delivery mechanism to a NG loading level and to handle a NG cartridge loaded with a failed detection leadframe onto the NG delivery mechanism.

11. The automatic chip inspection device according to claim 1, wherein the number of the transport parts is two, and the two transport parts alternately take out the lead frames to be inspected from the loading part and convey the lead frames to the inspection part.