CN117483265A - Lead frame detection equipment and detection sorting method - Google Patents
Lead frame detection equipment and detection sorting method Download PDFInfo
- Publication number
- CN117483265A CN117483265A CN202410002027.8A CN202410002027A CN117483265A CN 117483265 A CN117483265 A CN 117483265A CN 202410002027 A CN202410002027 A CN 202410002027A CN 117483265 A CN117483265 A CN 117483265A
- Authority
- CN
- China
- Prior art keywords
- detection
- lead frame
- rod
- guide rod
- frame body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 153
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000007689 inspection Methods 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
Landscapes
- Sorting Of Articles (AREA)
Abstract
A lead frame detection device and a detection sorting method relate to lead frame detection technology, and the device comprises: the two ends of the detection frame body are communicated with the detection channel, one end of the detection frame body is connected with the bearing plate, the other end of the detection frame body is arranged in a rotating way around an axis, and the detection frame body is provided with a strip-shaped through groove communicated with the detection channel; the annular rail is positioned at the outer side of the detection frame body, the axial lead of the annular rail coincides with the axial lead, and the annular rail is provided with a bulge which is outwards along the radial direction; the pushing and pulling mechanism comprises a deflector rod, a guide rod, a spring and a supporting rod, wherein one end of the deflector rod is matched with the inside of the strip-shaped through groove, the guide rod is connected with the other end of the deflector rod and is obliquely arranged, the spring is connected with one end of the guide rod, the supporting rod is vertically connected with the other end of the guide rod, the guide rod penetrates through a plurality of guide sleeves arranged on the front surface and/or the back surface, the other end of the spring is connected with the tail end of the detection frame body, and the supporting rod is matched with the inner side of the annular track. The method is realized through the equipment, the detection of the end part tilting and the flatness of the lead frame is realized, and the qualified and unqualified frames can be sorted.
Description
Technical Field
The invention relates to a lead frame, in particular to detection in preparation of the lead frame, and particularly relates to lead frame detection equipment and a detection sorting method.
Background
After the lead frame is formed by stamping and cut, appearance detection is needed, visual detection is carried out on the forming condition of the connection relation between the internal base island and the relevant pins, and the detection is generally carried out on the frame by photographing and capturing images from the front side for testing. In order to improve the preparation efficiency and reduce the cost of production equipment, many factories integrate continuous stamping and the cutting process after stamping on one equipment, and because the cutting is at the tail end of the equipment, a limiting mechanism is often inconvenient to set, and the extending section of the lead frame is inclined upwards to a certain extent at the moment of cutting, so that the cut is tilted to a certain extent; meanwhile, in the preparation process, the situation that the whole flatness of a formed section is poor is unavoidable; although the frames of the two cases are rare, if the frames are directly stacked and then applied to the subsequent semiconductor device packaging process, the stacking level is affected by the problems, and errors are caused in the process of sticking the core and the like, so that the packaging process is affected. Therefore, in addition to completing the visual inspection of the front face, it is necessary to inspect the broken portion tilting and the overall flatness thereof and screen out the frame to be corrected.
Disclosure of Invention
In order to overcome the defects of the related prior art, the invention provides lead frame detection equipment and a detection sorting method, which can realize the detection of the end part tilting and the flatness of a lead frame and sort qualified and unqualified frames.
In order to achieve the object of the invention, the following scheme is adopted:
lead frame check out test set locates the conveying mechanism end, and conveying mechanism is used for carrying and accomplishes continuous punching press and cuts fashioned lead frame, and equipment includes:
the detection frame body is internally provided with detection channels in a penetrating manner along the two ends of the length direction, one end of the detection frame body is connected with a bearing plate for bearing the lead frame conveyed by the conveying mechanism, the other end of the detection frame body is rotatably arranged around an axis, the axis is parallel to the width direction of the detection frame body, the front surface of the bearing plate is provided with a guide groove communicated with the detection channels, the width of the guide groove and the width of the detection channels are matched with the width of the lead frame body, the back surface of the bearing plate is positioned on one side of the front surface of the detection frame body when the detection frame body rotates, and the front surface of the bearing plate is provided with a strip-shaped through groove penetrating through the detection channels;
the annular rail is positioned at the outer side of the rotating track of the detection frame body, the axial lead of the annular rail coincides with the axial lead, and the annular rail is provided with an arc-shaped bulge which is outwards along the radial direction;
the pushing and pulling mechanism comprises a pulling rod, a guide rod, a spring and a supporting rod, wherein one end of the pulling rod is matched in the strip-shaped through groove, the guide rod is connected with the other end of the pulling rod and is obliquely arranged, the spring is connected with one end of the guide rod, the supporting rod is vertically connected with the other end of the guide rod, the guide rod penetrates through a plurality of guide sleeves arranged on the front surface and/or the back surface, the other end of the spring is connected with the tail end of the detection frame body and is always in a compressed state, and the supporting rod is matched with the inner side of the annular track;
when the pushing rod is in an initial state and is matched with the annular track section of the annular track, the deflector rod does not extend into the detection channel;
when the push-pull type detection device is in a push-pull state, the matching position of the supporting rod and the annular track transits from the starting end of the bulge to the vertex of the bulge, the spring drives the guide rod to drive the deflector rod to move along the inclined direction of the guide rod, and one end of the deflector rod stretches into the detection channel in the moving process;
when the reset state is reached, the matching position of the abutting rod and the annular track transits from the protruding vertex to the protruding tail end, and the guide rod drives the deflector rod to reset to the initial state.
When the detection frame body rotates to the state that the receiving plate is obliquely upward, the guide groove is upward and is received by the tail end of the conveying mechanism, the detection frame body is used for receiving the lead frame from the conveying mechanism; when the detection frame body continues to rotate by a preset angle until the bearing plate is inclined downwards and the guide groove is upwards, the detection frame body enters a pushing state.
Further, the distance between one end of the guide rod connecting spring and the front surface is larger than the distance between one end of the guide rod connecting and abutting rod and the front surface.
Further, the detecting frame bodies are formed on a cross-shaped detecting frame along the axial line circumferential array, the other ends of the two opposite detecting frame bodies are connected and communicated with the detecting channel, the rotating shafts of the four detecting frame bodies are overlapped and connected with an output shaft of a rotating motor through the rotating shaft, and each detecting frame body is provided with a bearing plate and a pushing mechanism.
Further, the front surface is provided with two strip-shaped through grooves, two annular tracks are symmetrically arranged on two sides of the rotation track of the detection frame body, two pushing and pulling mechanisms are arranged, the pulling rods of different pushing and pulling mechanisms are matched with the different strip-shaped through grooves, and the abutting rods of different pushing and pulling mechanisms are matched with the different annular tracks; the positions of the different shifting levers are staggered, and when the shifting levers are in an initial state, the distances between the different shifting levers and one end of the strip-shaped through groove where the shifting levers are located are different.
The lead frame detection and sorting method is realized by adopting the lead frame detection equipment and comprises the following steps:
firstly, the detection frame body is rotated to the position that the receiving plate is obliquely upward, the guide groove is upward and is received by the tail end of the conveying mechanism, and the lead frame is received from the conveying mechanism to the receiving plate;
stopping rotating, wherein the received lead frame slides downwards along with the bearing plate, if the lead frame passes through the detection channel and slides out of the detection channel, the lead frame is judged to be qualified, and if the front end of the lead frame cannot enter or cannot integrally pass through the detection channel, the lead frame is judged to be unqualified;
after stopping rotating for a preset time, continuing to rotate the detection frame body for a preset angle until the bearing plate is inclined downwards and the guide groove is upwards, enabling the equipment to enter a pushing state from an initial state, enabling the unqualified lead frame to naturally slide downwards from the bearing plate, or enabling the unqualified lead frame to be temporarily clamped in the detection channel due to the fact that the front end of the unqualified lead frame enters the detection channel but does not pass through the detection channel, and enabling the spring to drive the guide rod to drive the deflector rod to move along the inclined direction of the guide rod when the matching position of the supporting rod and the annular track transits from the starting end of the bulge to the vertex of the bulge, wherein one end of the deflector rod stretches into the detection channel to act on the lead frame in the movement, so that the lead frame slides downwards along the bearing plate;
continuing to rotate the detection frame, the device enters the initial state again, and is ready for detection and sorting of the second lead frame.
The invention has the beneficial effects that:
the end part of the lead frame is tilted and flatness is detected by mechanical means, and the rotating and tilting states can be utilized to realize sliding or pushing, so that qualified and unqualified frames are separated; the device has simple integral structure, easy implementation, lower cost compared with expensive visual detection equipment, better application prospect, and suitability for detection and separation of lead frames with a certain thickness, such as a lead frame with a thickness of more than 0.8mm, such as a rectifier bridge frame and the like.
Drawings
Fig. 1 shows a schematic structural diagram of a detection device according to an embodiment of the present application.
Fig. 2 shows another schematic view of the structure of the detecting device according to the embodiment of the present application.
Fig. 3 shows a schematic structural diagram of a detection frame body connection receiving plate and a rotation motor according to an embodiment of the present application.
Fig. 4 shows a schematic structural diagram of a detection frame according to an embodiment of the present application.
Fig. 5 shows a schematic side view of a detection frame, an annular rail, and a pushing mechanism according to an embodiment of the present application.
Fig. 6 shows a schematic structural diagram of a detection frame, a bearing plate and a rotating motor according to an embodiment of the application.
Fig. 7 is a schematic view showing a state in which the inspection frame body according to the embodiment of the present application is rotated to receive the lead frame.
Fig. 8 is a schematic diagram illustrating a state when the detection frame body in the embodiment of the present application rotates to a pushing state.
Fig. 9 is a schematic diagram showing a state when the detection frame body in the embodiment of the present application rotates to a reset state.
Reference numerals: 1-conveying mechanism, 2-detecting frame, 20-detecting channel, 21-detecting frame body, 22-bar-shaped through groove, 23-receiving plate, 3-rotating motor, 4-pushing and pulling mechanism, 41-pulling rod, 42-guiding rod, 43-spring, 44-supporting rod, 45-guiding sleeve, 5-annular track, 51-protrusion, 511-first inclined plane, 512-second inclined plane and 6-lead frame.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
The embodiment of the application provides a lead frame detection device, as shown in fig. 1-2, which is arranged at the tail end of a conveying mechanism 1, wherein the conveying mechanism 1 is used for conveying a lead frame 6 which is formed by continuous stamping and cutting. The apparatus of this example includes a detection frame 21, an endless track 5, a pushing mechanism 4, and the like.
As shown in fig. 3-4, the detection frame 21 is provided with a detection channel 20 running through at two ends along the length direction, one end of the detection channel is connected with a receiving plate 23 for receiving the lead frame 6 conveyed by the conveying mechanism 1, and the other end of the detection channel is rotatably disposed around an axis parallel to the width direction of the detection frame 21, specifically, as shown in fig. 2, a rotating shaft may be disposed at the axis and connected with an output shaft of the rotating motor 3, so as to implement rotation of the detection frame 21.
As shown in fig. 4 and 6, the receiving plate 23 has a guide groove on the front surface thereof, which is in communication with the detection channel 20, the width of the guide groove, the width of the detection channel 20, and the width of the lead frame 6 are matched, and the rear surface is on the side of the front surface of the detection frame 21, which is provided with a strip-shaped through groove 22 penetrating to the detection channel 20 when the detection frame 21 rotates.
As shown in fig. 1-2, the annular rail 5 is located outside the rotation track of the detection frame 21, the axial line of the annular rail is coincident with the rotation axis of the detection frame 21, and the annular rail 5 is provided with a radially outward arc-shaped protrusion 51.
As shown in fig. 2, the push-pull mechanism 4 includes a shift lever 41 having one end fitted in the bar-shaped through groove 22, a guide lever 42 connected to the other end of the shift lever 41 and arranged obliquely, a spring 43 connected to one end of the guide lever 42, and a abutting lever 44 connected perpendicularly to the other end of the guide lever 42. The guide rods 42 are inserted through a plurality of guide sleeves 45 provided on the front surface and/or the rear surface, and may be provided on the front surface or the rear surface, or the guide sleeves 45 may be provided on the front surface and the rear surface, respectively. The other end of the spring 43 is connected to the end of the detection frame 21, and specifically, the connection can be achieved by providing a fixed block at the end position of the front surface of the detection frame 21, the spring 43 is always in a compressed state, and the abutting rod 44 is fitted inside the annular track 5.
Three states are defined when the device of this example is in use:
1. in the initial state, the abutting rod 44 is matched with the annular track section of the annular track 5, namely the section not covered by the protrusion 51, and at this time, the deflector rod 41 does not extend into the detection channel 20, so as to avoid influencing the detection of the lead frame 6.
2. In the pushing state, as shown in fig. 8, the matching position of the abutting rod 44 and the annular track 5 transitions from the annular track section to the section covered by the protrusion 51, specifically from the starting end of the protrusion 51 to the vertex of the protrusion 51, and in this state, since the abutting position of the abutting rod 44 is changed, the spring 43 drives the guide rod 42 to drive the deflector 41 to move along the oblique direction of the guide rod 42, that is, along the length direction of the guide rod 42, specifically, the oblique arrangement of the guide rod 42 is that: the distance between one end of the guide rod 42 connected with the spring 43 and the front surface is larger than the distance between one end of the guide rod 42 connected with the abutting rod 44 and the front surface, so that when the guide rod 42 moves along the length direction, the driving rod 41 is driven to move, one end of the driving rod 41 can extend into the detection channel 20 in the moving process, and the driving rod 41 can act on the lead frame 6 to push the lead frame 6 to the outer side. Here, the inclination of the guide bar 42 is not required to be too large, and only the shift lever 41 may have a movement component toward the inside of the detection passage 20 and toward the receiving plate 23 with respect to the detection frame 21 during movement, for example, an angle between the guide bar 42 and the front surface is set to 5 ° to 15 °.
3. In the reset state, as shown in fig. 9, the mating position of the abutting rod 44 and the annular track 5 transits from the vertex of the boss 51 to the end of the boss 51, and the guide rod 42 drives the shift lever 41 to reset to the initial state.
The method for detecting and sorting the lead frames by using the lead frame detection device of the embodiment is described with reference to fig. 1 to 9, and comprises the following steps:
first, the detection frame 21 is rotated until the receiving plate 23 is inclined upward and the guide groove is upward and received by the end of the conveying mechanism 1, and the lead frame 6 is received from the conveying mechanism 1 to the receiving plate 23, so that the state shown in fig. 7 is formed, and the apparatus is in the initial state.
Then, the rotation is stopped, the received lead frame 6 slides down along with the receiving plate 23, if the lead frame 6 passes through the detection channel 20 and slides out of the detection channel 20, the lead frame 6 is judged to be qualified, and if the lead frame 6 has warpage or unevenness, the front end of the lead frame cannot enter the detection channel 20 or cannot enter the detection channel 20 entirely, and the lead frame 6 is judged to be unqualified.
Then, after stopping the rotation for a predetermined time, continuing to rotate the detection frame 21 for a predetermined angle until the receiving plate 23 is inclined downward and the guide groove is upward, the apparatus enters a push-pull state from an initial state, as shown in fig. 8; the unqualified lead frame 6 will naturally slide out from the receiving plate 23, or because the front end of the lead frame 6 has entered the detecting channel 20 but is temporarily clamped in the detecting channel 20 through the detecting channel 20 as a whole, when the matching position of the abutting rod 44 and the annular track 5 transits from the starting end of the bulge 51 to the vertex of the bulge 51, the spring 43 drives the guide rod 42 to drive the deflector 41 to move along the inclined direction of the guide rod 42, and in the moving process, one end of the deflector 41 stretches into the detecting channel 20 to act on the lead frame 6 so as to push the lead frame 6 to be separated from the detecting channel 20 and slide out along the receiving plate 23; after the unqualified lead frames 6 are sent out, the unqualified lead frames and the qualified lead frames are positioned in different sending directions, so that screening separation is realized.
Then, the rotation of the inspection frame 21 is continued, and the apparatus is brought back to the initial state, ready for inspection and sorting of the second lead frame 6.
In particular, in the implementation of this example, where the pushing action is a shortcut with a certain momentum, the time of the movement of the abutment lever 44 from the start end to the apex in the pushing state can be shortened, on the one hand, by increasing the rotational speed at which this section operates, and on the other hand, by arranging the structure of the protrusion 51, such as in the example shown in fig. 5, the protrusion 51 has a first inclined surface 511 from the start end to the apex and a second inclined surface 512 from the apex to the end, and then it can be designed that the angle α between the first inclined surface 511 and the line connecting the apex and the axis is as small as possible, such as 30 ° or less, so that the time of the abutment lever 44 operating in this section will be short, and the movement of the spring 43 driving the guide lever 42 and the deflector 41 will be rapid, so that the pushing is more efficient. Meanwhile, when the reset phase is reached, the transition is not needed to be too rapid, and only needs to be slow, the included angle beta between the second inclined plane 512 and the connecting line can be set to be slightly larger, such as more than or equal to 45 degrees and less than 70 degrees, so that the abutting rod 44 is in a relatively gentle transition to the annular track section at the section, and the initial state is reset.
In order to improve the operation efficiency of the device, considering the circumferential rotation along the axis of the detection frame 21, the number of the detection frames 21 is increased and the bearing plates 23 and the pushing mechanism 4 are both configured, so that the utilization rate of the device is improved, and the detection efficiency is improved. In view of this, as shown in fig. 1 to 6, the detection frame 21 has four circumferential arrays along the axis, and may be formed on a cross-shaped detection frame 2, so that the processing is convenient, the detection channel 20 is directly formed on the cross-shaped detection frame 2 in a penetrating manner along two vertical directions, that is, a structure that the other ends of the two opposite detection frames 21 are connected and the detection channels 20 are also communicated is realized, one of the two opposite detection frames 21 is in a state of receiving the lead frame 6, and the other detection frame 21 does not cause interference when detecting. Specifically, the rotation axes of the four detection frames 21 overlap and are connected to an output shaft of a rotation motor 3 through the rotation shaft, and each detection frame 21 is provided with a receiving plate 23 and a pushing mechanism 4. At this time, the other end of the spring 43 may be connected to the rear surface of the adjacent detection frame 21, which is the other surface with respect to the front surface. The steps for performing detection sorting using this preferred scheme will be described with reference to fig. 1-9:
first, one detection frame 21 is rotated to a receiving position, that is, a position where the receiving plate 23 is inclined upward and the guide groove is upward and received with the end of the conveying mechanism 1, and the lead frame 6 is received from the conveying mechanism 1 to the receiving plate 23, and at this time, the pushing mechanism 4 on the current detection frame 21 is in an initial state.
Then, the rotation is stopped, the received lead frame 6 slides down along with the receiving plate 23, if the lead frame 6 passes through the inspection channel 20 and slides out from the inspection channel 20 after passing through the opposite inspection frame 21, the lead frame 6 is judged to be qualified, and if the lead frame 6 has warpage or unevenness, the front end of the lead frame cannot enter the inspection channel 20 or cannot enter the inspection channel 20 entirely, and the lead frame 6 is judged to be unqualified.
Then, after stopping the rotation for a predetermined time, the pushing mechanism 4 on the current detection frame 21 is brought into the pushing state from the initial state when the current detection frame 21 is rotated by a predetermined angle until the receiving plate 23 is inclined downward and the guide groove is upward, at this time, the next detection frame 21 adjacent to the current detection frame 21 is rotated to the receiving position, and the next detection frame 21 can start receiving the next lead frame 6.
Then, the current detection frame 21 is continuously rotated, the pushing and pulling mechanism 4 on the current detection frame 21 is re-in to the initial state, and the detection frame 21 at the receiving position is rotated to the pushing and pulling state, so that the current detection frame 21 is sequentially rotated, and once receiving and once pushing and pulling can be performed when the current detection frame is rotated by about 90 degrees, and the detection efficiency is improved.
As another preference, in order to ensure the effectiveness of the pushing, two staggered levers 41 may be provided, each pushing from a different position in a different bar-shaped through slot 22. Specifically, as shown in fig. 2 and fig. 4, two bar-shaped through grooves 22 are formed in the front surface of the detection frame 21, two annular tracks 5 are symmetrically formed on two sides of the rotation track of the detection frame 21, two pushing and pulling mechanisms 4 are arranged on two sides of the rotation track of the detection frame, the pulling rods 41 of different pushing and pulling mechanisms 4 are matched with different bar-shaped through grooves 22, the supporting rods 44 of different pushing and pulling mechanisms 4 are matched with different annular tracks 5, so that the positions of different pulling rods 41 are staggered, and particularly, when the detection frame is in an initial state, the distances between the different pulling rods 41 and the ends of the same direction as the positions of the bar-shaped through grooves 22 are different. Thus, when pushing, the two levers 41 will act on the lead frame 6 from different positions, specifically, the strip-shaped through groove 22 may be set as a position matching with the injection hole or the hollow on the lead frame 6, so that the levers 41 act on the lead frame 6 through the injection hole or the hollow.
The foregoing is merely a preferred embodiment of the present invention and is not meant to be the only or limiting of the present invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (7)
1. Lead frame check out test set locates conveying mechanism (1) terminal, its characterized in that includes:
the detection frame body (21) is internally provided with a detection channel (20) in a penetrating manner along the two ends of the length direction, one end of the detection frame body is connected with a bearing plate (23) for bearing the lead frame (6) conveyed by the conveying mechanism (1), the other end of the detection frame body is rotatably arranged around an axis, the axis is parallel to the width direction of the detection frame body (21), the front surface of the bearing plate (23) is provided with a guide groove communicated with the detection channel (20), the back surface of the bearing plate is positioned on one side of the front surface of the detection frame body (21) when the detection frame body rotates, and the front surface of the bearing plate is provided with a strip-shaped through groove (22) penetrating through the detection channel (20);
the annular track (5) is positioned at the outer side of the rotating track of the detection frame body (21), the axial lead of the annular track is coincident with the axial lead, and the annular track (5) is provided with a bulge (51) which is outwards along the radial direction;
the pushing and pulling mechanism (4) comprises a pulling rod (41) with one end matched in the strip-shaped through groove (22), a guide rod (42) connected with the other end of the pulling rod (41) and arranged obliquely, a spring (43) connected with one end of the guide rod (42) and a supporting rod (44) vertically connected with the other end of the guide rod (42), the guide rod (42) penetrates through a plurality of guide sleeves (45) arranged on the front surface and/or the back surface, the other end of the spring (43) is connected with the tail end of the detection frame (21) and is always in a compressed state, and the supporting rod (44) is matched with the inner side of the annular track (5);
when in an initial state, the abutting rod (44) is matched with the annular track section of the annular track (5), and the deflector rod (41) does not extend into the detection channel (20);
when the push-pull type detection device is in a push-pull state, the matching position of the abutting rod (44) and the annular track (5) is transited from the starting end of the bulge (51) to the vertex of the bulge (51), the spring (43) drives the guide rod (42) to drive the deflector rod (41) to move along the inclined direction of the guide rod (42), and one end of the deflector rod (41) stretches into the detection channel (20) in the moving process.
2. The lead frame inspection apparatus according to claim 1, wherein a distance between an end of the guide rod (42) to which the spring (43) is connected and the front surface is larger than a distance between an end of the guide rod (42) to which the abutting rod (44) is connected and the front surface.
3. The leadframe inspection apparatus according to claim 1, characterized in that the guide bar (42) has an angle of 5 ° -15 ° with the front surface.
4. The lead frame inspection apparatus according to claim 1, wherein four inspection frames (21) are formed on a cross-shaped inspection frame (2) along the circumferential array of the axis, the other ends of the two opposite inspection frames (21) are connected and the inspection channels (20) are communicated, the rotation axes of the four inspection frames (21) overlap and are connected with an output shaft of a rotation motor (3) through the rotation shaft, and each inspection frame (21) is provided with a receiving plate (23) and a pushing mechanism (4).
5. The lead frame detection device according to claim 1, wherein the front surface is provided with two strip-shaped through grooves (22), two annular tracks (5) are symmetrically arranged on two sides of the rotation track of the detection frame body (21), two pushing mechanisms (4) are arranged, the shifting rods (41) of different pushing mechanisms (4) are matched with the different strip-shaped through grooves (22), and the abutting rods (44) of different pushing mechanisms (4) are matched with the different annular tracks (5); when in an initial state, the distances between different deflector rods (41) and one end of the strip-shaped through groove (22) where the deflector rods are positioned are different.
6. Leadframe inspection device according to claim 1, characterized in that the protrusion (51) has a first slope (511) from the start end to the apex, the first slope (511) forming an angle α of 30 ° or less with the line connecting the apex and the axis.
7. A lead frame inspection and sorting method, characterized in that the lead frame inspection apparatus according to any one of claims 1 to 6 is employed, the method comprising:
firstly, the detection frame body (21) is rotated to a supporting plate (23) which is obliquely upward, a guide groove is upward and is supported by the tail end of the conveying mechanism (1), and the lead frame (6) is received from the conveying mechanism (1) to the supporting plate (23);
stopping rotating, wherein the received lead frame (6) slides downwards along with the bearing plate (23), if the lead frame (6) passes through the detection channel (20) and slides out of the detection channel (20), the lead frame (6) is judged to be qualified, and if the front end of the lead frame (6) cannot enter or the whole lead frame cannot pass through the detection channel (20), the lead frame (6) is judged to be unqualified;
after stopping rotating for a preset time, continuing to rotate the detection frame body (21) for a preset angle until the bearing plate (23) is obliquely downward and the guide groove is upward, enabling the equipment to enter a pushing state from an initial state, enabling the unqualified lead frame (6) to slide out of the bearing plate (23) naturally or enabling the unqualified lead frame (6) to be temporarily clamped in the detection channel (20) because the front end of the unqualified lead frame (6) enters the detection channel (20) but does not pass through the detection channel entirely, and enabling the lead frame (6) to slide out along the bearing plate (23) when the matching position of the abutting rod (44) and the annular track (5) transits from the starting end of the bulge (51) to the vertex of the bulge (51), and enabling the spring (43) to drive the guide rod (42) to drive the guide rod (41) to move along the oblique direction of the guide rod (42), wherein one end of the guide rod (41) stretches into the detection channel (20) to act on the lead frame (6) in moving;
the inspection frame (21) continues to be rotated, and the apparatus is brought back into the initial state, ready for inspection and sorting of the second lead frame (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410002027.8A CN117483265B (en) | 2024-01-02 | 2024-01-02 | Lead frame detection equipment and detection sorting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410002027.8A CN117483265B (en) | 2024-01-02 | 2024-01-02 | Lead frame detection equipment and detection sorting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117483265A true CN117483265A (en) | 2024-02-02 |
| CN117483265B CN117483265B (en) | 2024-03-12 |
Family
ID=89671275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410002027.8A Active CN117483265B (en) | 2024-01-02 | 2024-01-02 | Lead frame detection equipment and detection sorting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117483265B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB359617A (en) * | 1930-08-18 | 1931-10-29 | Gledhill Weaving Machine Compa | Improvements in or relating to looms for weaving two or more separate fabrics simultaneously |
| JPS63191000U (en) * | 1987-05-29 | 1988-12-08 | ||
| JPH09323817A (en) * | 1996-06-10 | 1997-12-16 | Izumi Tekko Kk | Conveying arm for sorting conveyor |
| KR19990040213U (en) * | 1998-04-28 | 1999-11-25 | 김규현 | Material conveying device of semiconductor package manufacturing equipment |
| KR19990085176A (en) * | 1998-05-14 | 1999-12-06 | 최재준 | Leadframe Alignment System and Alignment Method |
| KR20020052507A (en) * | 2000-12-26 | 2002-07-04 | 이명수 | conveying device for lead frame on condenser set box |
| CN207457261U (en) * | 2017-11-15 | 2018-06-05 | 北京乐普医疗科技有限责任公司 | A kind of full-automatic fluorescence immune chromatography analytical equipment |
| KR102040818B1 (en) * | 2019-02-26 | 2019-11-06 | 평원개발(주) | Pipe Route Gradient Measuring System |
| CN111842223A (en) * | 2020-07-28 | 2020-10-30 | 陈小雨 | Electronic accessory electric conductivity detection system |
| CN213033068U (en) * | 2020-09-02 | 2021-04-23 | 江西亚中电子科技股份有限公司 | Guiding mechanism for electroplating processing of LED lead frame |
| CN113725133A (en) * | 2021-11-01 | 2021-11-30 | 四川富美达微电子有限公司 | Lead frame feeding and conveying device |
| CN114082663A (en) * | 2022-01-18 | 2022-02-25 | 四川明泰电子科技有限公司 | Integrated chip tube body and pin detection system |
| CN115662915A (en) * | 2022-12-07 | 2023-01-31 | 四川富美达微电子有限公司 | Lead frame orthopedic detection assembly and device |
| CN116772679A (en) * | 2023-08-22 | 2023-09-19 | 四川明泰微电子科技股份有限公司 | Semi-automatic detection tool for multi-surface pin size of LQFP packaging chip |
-
2024
- 2024-01-02 CN CN202410002027.8A patent/CN117483265B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB359617A (en) * | 1930-08-18 | 1931-10-29 | Gledhill Weaving Machine Compa | Improvements in or relating to looms for weaving two or more separate fabrics simultaneously |
| JPS63191000U (en) * | 1987-05-29 | 1988-12-08 | ||
| JPH09323817A (en) * | 1996-06-10 | 1997-12-16 | Izumi Tekko Kk | Conveying arm for sorting conveyor |
| KR19990040213U (en) * | 1998-04-28 | 1999-11-25 | 김규현 | Material conveying device of semiconductor package manufacturing equipment |
| KR19990085176A (en) * | 1998-05-14 | 1999-12-06 | 최재준 | Leadframe Alignment System and Alignment Method |
| KR20020052507A (en) * | 2000-12-26 | 2002-07-04 | 이명수 | conveying device for lead frame on condenser set box |
| CN207457261U (en) * | 2017-11-15 | 2018-06-05 | 北京乐普医疗科技有限责任公司 | A kind of full-automatic fluorescence immune chromatography analytical equipment |
| KR102040818B1 (en) * | 2019-02-26 | 2019-11-06 | 평원개발(주) | Pipe Route Gradient Measuring System |
| CN111842223A (en) * | 2020-07-28 | 2020-10-30 | 陈小雨 | Electronic accessory electric conductivity detection system |
| CN213033068U (en) * | 2020-09-02 | 2021-04-23 | 江西亚中电子科技股份有限公司 | Guiding mechanism for electroplating processing of LED lead frame |
| CN113725133A (en) * | 2021-11-01 | 2021-11-30 | 四川富美达微电子有限公司 | Lead frame feeding and conveying device |
| CN114082663A (en) * | 2022-01-18 | 2022-02-25 | 四川明泰电子科技有限公司 | Integrated chip tube body and pin detection system |
| CN115662915A (en) * | 2022-12-07 | 2023-01-31 | 四川富美达微电子有限公司 | Lead frame orthopedic detection assembly and device |
| CN116772679A (en) * | 2023-08-22 | 2023-09-19 | 四川明泰微电子科技股份有限公司 | Semi-automatic detection tool for multi-surface pin size of LQFP packaging chip |
Non-Patent Citations (1)
| Title |
|---|
| 蒋贤志;王大中;严志云;关安南;: "利用PA的结晶原理解决塑件常见成型缺陷", 模具工业, no. 12, 15 December 2011 (2011-12-15) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117483265B (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101378326B1 (en) | Transfer apparatus for handling electronic components | |
| CN103976457B (en) | A kind of Removing Kernel for Date equipment | |
| CN110775586B (en) | Feeding system of automatic optical detection machine for PCB (printed circuit board) | |
| CN213456706U (en) | AOI detection device | |
| CN117483265B (en) | Lead frame detection equipment and detection sorting method | |
| CN110491613A (en) | A kind of resistance detection coding braid all-in-one machine | |
| US20090234606A1 (en) | Apparatus for fastener inspection and sorting | |
| CN114408500A (en) | Automatic shell installation device for production and processing of instruments and meters | |
| CN107282469B (en) | Magnet unloading mechanism and magnet automatic feeding check out test set thereof | |
| CN114194452B (en) | Automatic detection mechanism for S parameter of radio frequency chip type load band | |
| CN217417367U (en) | Feeding device and test equipment | |
| CN109759833A (en) | A kind of folded antenna revolving part feeding device | |
| JP4275875B2 (en) | Parts inspection device | |
| CN107161620A (en) | Magnet defective products cutting agency and its magnet automatic charging detection device | |
| CN214709756U (en) | Rotary silkworm cocoon device | |
| CN117074729A (en) | Motor detection method and device | |
| CN212923075U (en) | Quick-detection type sample conveying device | |
| CN219519648U (en) | Semiconductor test separator | |
| CN220699377U (en) | Notebook computer positioning equipment | |
| CN115519618B (en) | V-belt processing system for agricultural machinery | |
| CN211247397U (en) | Multifunctional rotating mechanism for axis detection | |
| CN218939607U (en) | Sampling inspection machine for chip manufacturing | |
| CN220277631U (en) | Electronic product detection equipment | |
| CN215591877U (en) | Large-scale stable and rapid turnover mechanism | |
| CN219122014U (en) | Defect detection device and wood defect scanning and cutting integrated machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |