CN117954365B - Lead frame mechanism, transfer device that gathers materials - Google Patents
Lead frame mechanism, transfer device that gathers materials Download PDFInfo
- Publication number
- CN117954365B CN117954365B CN202410359273.9A CN202410359273A CN117954365B CN 117954365 B CN117954365 B CN 117954365B CN 202410359273 A CN202410359273 A CN 202410359273A CN 117954365 B CN117954365 B CN 117954365B
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- turntable
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- lead frame
- bottom plate
- rod
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- 239000000463 material Substances 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims abstract description 38
- 238000005245 sintering Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 5
- 239000004065 semiconductor Substances 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67742—Mechanical parts of transfer devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68721—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by edge clamping, e.g. clamping ring
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Robotics (AREA)
- Specific Conveyance Elements (AREA)
Abstract
The utility model provides a lead frame mechanism, transfer device that gathers materials, belongs to semiconductor device preparation technical field, and lead frame mechanism that gathers materials includes: the guide part comprises a group of L-shaped baffles with adjustable intervals; the base is positioned below the L-shaped baffle and comprises a turntable, wherein a plurality of collecting parts are arranged on the turntable in a circumferential array and are used for placing lead frames; the pull-down part is arranged corresponding to the bottom plate and comprises a blocking plate and a pull-down assembly, wherein the blocking plate is used for enabling the lead frame to fall into a placement area surrounded by the limiting rods, and the pull-down assembly is used for enabling the limiting rods to move out of one surface of the turntable after the turntable rotates to a preset position. The lead frame transfer device comprises a material collecting mechanism, a turning part and a material taking part, wherein the material taking part is arranged on the turning part and comprises a clamping assembly, and the clamping assembly is used for transferring the lead frames stacked on the turntable onto a conveying belt. By using the scheme, the automation degree can be improved, the lead frame after solid welding is replaced by manual collection, the transfer is convenient, and the probability of sucker feeding failure is reduced.
Description
Technical Field
The invention belongs to the field of semiconductor devices, and particularly relates to a lead frame collecting mechanism and a transfer device.
Background
The semiconductor device is generally manufactured by using lead frames, two or more lead frames are overlapped during production, chips are stuck on pins between the lead frames through solder paste before the lead frames are overlapped, the lead frames are fixedly welded together by using high-temperature sintering equipment after the lead frames are overlapped, the lead frames which are fixedly welded together are output through a discharge end of the high-temperature sintering equipment, the lead frames are transferred to injection molding equipment, the lead frames are sequentially moved to packaging areas corresponding to the injection molding equipment by using sucking discs to form a package body, and finally, the single semiconductor device is formed by punching and rib cutting.
The lead frame after solid welding is output through the discharge end of the high-temperature sintering equipment, the output lead frame is scattered on the operation table due to the lack of the material collecting mechanism at the discharge end, and the side edges of some lead frames output after solid welding fall between the frame gaps of the lead frames on the operation table when leaving the discharge end of the high-temperature sintering equipment, so that the lead frames deform, and the quality of the lead frames is affected.
The existing processing mode is that a worker stacks the lead frames after fixed welding in the collecting frames at the discharging end, then transfers the collecting frames with the lead frames to the injection molding equipment, stacks the stacked lead frames out, and places the stacked lead frames on a conveyor belt at the feeding end of the injection molding equipment.
In the process, the peripheral temperature of the high-temperature sintering equipment is higher, workers work in a high-temperature state for a long time, the health is not facilitated, and the lead frame after solid welding has higher temperature when being just output, so that the workers are easy to scald; the overlapped lead frames are taken out of the conveyor belt arranged at the feeding end of the injection molding equipment secondarily, and the lead frames are inconvenient to take out and low in efficiency because the side edges of the collecting frames cannot move; the manual work is placed on the conveyer belt and is possible to have deviation, and when leading to the conveyer belt to carry lead frame to the sucking disc position, can't correspond with the suction hole of sucking disc, and sucking disc material loading failure's probability is great.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a lead frame collecting mechanism and a transfer device, which are used for improving the degree of automation, replacing manual collection and fixation of welded lead frames, and reducing the probability of sucker feeding failure.
In order to achieve the object of the invention, the following scheme is adopted:
a lead frame aggregate mechanism disposed at a discharge crawler output end of a high temperature sintering apparatus, comprising:
The guide part is arranged at the output end of the discharging crawler belt and used for guiding the output lead frame, and comprises a group of L-shaped baffles with adjustable intervals;
The base is positioned below the L-shaped baffles and comprises a turntable, a plurality of collecting parts are arranged on the turntable in a circumferential array manner, the two L-shaped baffles are positioned above the movement track of the collecting parts, the collecting parts comprise a bottom plate, the bottom plate is arranged on one surface of the turntable, a plurality of limiting rods are arranged on the bottom plate, one ends of the limiting rods penetrate through the turntable to enable the limiting rods to enclose a placement area for placing lead frames, pull rods are arranged at two ends of the bottom plate, and one ends of the pull rods penetrate through the turntable and are provided with springs;
The drop-down portion corresponds the bottom plate setting, including stopping the board, stop the board and set up along the radial movement of carousel, be equipped with the regulating plate on the board of stopping, when lead frame carries to L type baffle on, the one side of regulating plate is used for stopping lead frame to control L type baffle and move backward, make lead frame fall into and place the district, the other end of stopping the board is equipped with drop-down subassembly, drop-down subassembly is used for following the removal of stopping the board and pushing the bottom plate downwards along the carousel axis after the carousel rotates to the preset position, so that the gag lever post shifts out the one side of carousel.
Further, a plurality of first rollers are arranged on the transverse part of the L-shaped baffle plate.
Further, a plurality of adjusting holes are formed in the bottom plate, the limiting rod is movably arranged in the adjusting holes, a plurality of strip-shaped holes are formed in the rotary disc, and the positions of the strip-shaped holes correspond to the positions of the adjusting holes.
Further, one end of the limiting rod is provided with a locking piece, the limiting rod is provided with a limiting plate, the locking piece is located on one surface of the bottom plate, and the limiting plate is located on the other surface of the bottom plate.
Further, the multiunit dodges the hole has been seted up on the carousel, the pull rod wears to locate to dodge downthehole, a plurality of removal grooves have been seted up along the radial of carousel, it is located one side of placing the district to remove the groove, two of each group dodge the hole and about a removal groove symmetrical arrangement, the barrier board slides and locates to remove the inslot, the drop-down subassembly includes first cylinder, the one side of carousel is located to first cylinder, the one side of barrier board one end is connected to the output of first cylinder, the another side of barrier board one end slides and is equipped with the drop-down spare, one side of bottom plate is connected to the one end of drop-down spare.
Further, one side along the length direction of the blocking plate is provided with a T-shaped groove, the pull-down piece comprises an inverted L-shaped connecting rod, one end of a vertical part of the L-shaped connecting rod is in sliding fit with the T-shaped groove, one end of a transverse part is upwards connected with a cross rod, two ends of the cross rod are respectively provided with a triangular plate, the inclined edges of the triangular plates face the rotary table, and the bottom edges of the triangular plates are located between one side of the bottom plate and one side of the rotary table.
The utility model provides a lead frame transfer device, includes mechanism that gathers materials, is located one side of carousel to correspond high temperature sintering equipment ejection of compact track output, include:
the steering part comprises a stand column, and a rotating seat is sleeved outside the stand column;
And the material taking part is arranged on the rotating seat and comprises a clamping assembly, and the clamping assembly is used for transferring the lead frames stacked on the turntable onto the conveying belt.
Further, be equipped with the ring on the rotation seat, the periphery of rotation seat is equipped with spiral guide way, is equipped with spacing seat on the ring, and one side of stand is equipped with erects the roof beam, and the spout has been seted up to one side of erectting the roof beam, and in the spout was located to spacing seat slip, the one side of spacing seat was equipped with the second cylinder, and the one end of erectting the roof beam is located to the second cylinder, and one side of erectting the roof beam is equipped with the guide bar, and the one end of guide bar is equipped with the second roller, second roller and spout rolling fit.
Further, the clamping component comprises a transverse plate, one end of the transverse plate is connected with the rotating seat, a third air cylinder is arranged on the transverse plate, gears are arranged on the transverse plate, racks are respectively arranged on two sides of the gears, one end of each rack is connected with a strip-shaped plate, two ends of each strip-shaped plate are respectively provided with a supporting rod, and the ends of each supporting rod are connected with clamping plates.
Further, one surface of the clamping plate is covered with a rubber pad.
The invention has the beneficial effects that:
1. The L-shaped baffle plate and the blocking plate are matched, so that the lead frames subjected to solid welding automatically enter a placement area surrounded by the limiting rods, the limiting rods positioned on the periphery of the stacked lead frames can be moved out after the collection is finished, the material is conveniently taken out, each limiting rod can extend out of the turntable to form the placement area again after the material is finished, manual adjustment is not needed, the working time of workers in a high-temperature environment is reduced, the efficiency is high, and the cost is reduced;
2. The up-and-down movement of the rotating seat can be controlled by utilizing the up-and-down movement of the third cylinder, and the rotating is realized under the action of the guide groove when the rotating seat moves, so that the positions of the clamping assembly, which are placed on the conveying belt after the lead frame is clamped, are kept consistent, the probability of suction failure during suction cup feeding is reduced, the investment of a power source is reduced, and the equipment cost is reduced.
Drawings
The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the invention.
Fig. 1 shows a three-dimensional schematic of an application scenario of the present application.
Fig. 2 shows a top view of an application scenario of the application.
Fig. 3 shows a partially enlarged schematic illustration of the application at a of fig. 2.
Fig. 4 shows a three-dimensional schematic of the base structure of the present application.
Fig. 5 shows a schematic side view of the base of the present application.
Fig. 6 shows a partially enlarged schematic illustration of the application at B of fig. 5.
Fig. 7 shows a schematic diagram of the turntable structure of the present application.
Fig. 8 shows a schematic view of the aggregate structure of the present application.
Figure 9 shows a schematic view of the connection of the barrier panel to the pulldown member of the present application.
Fig. 10 shows a schematic view of the steering and take-off structure of the present application.
Fig. 11 shows a partially enlarged schematic illustration of fig. 10 at C in accordance with the application.
The marks in the figure: the device comprises a lead frame-1, a conveyor belt-2, a guide part-100, an L-shaped baffle-110, a first roller-111, a base-200, a turntable-210, a strip hole-211, a dodge hole-212, a moving groove-213, a collecting part-220, a bottom plate-221, an adjusting hole-2211, a limit rod-222, a locking part-2221, a limit plate-2222, a pull rod-223, a spring-224, a pull-down part-300, a blocking plate-310, a T-shaped groove-311, an adjusting plate-312, a pull-down assembly-320, a first cylinder-321, a pull-down part-330, an L-shaped connecting rod-331, a cross rod-332, a triangular plate-333, a steering part-400, a column-410, a rotating seat-420, a circular ring-421, a guide groove-422, a limit seat-423, a second cylinder-424, a vertical beam-430, a slide groove-431, a guide rod-432, a material taking part-500, a clamping assembly-510, a transverse plate-511, a gear-512, a rack-513, a strip-514, a strut-516, a bar-516, a clamp plate-517, a clamp plate-and a third cylinder-clamp plate-clamp.
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.
Example 1
As shown in fig. 1-9, the present embodiment provides a lead frame aggregate mechanism, which is disposed at an output end of a discharging crawler of a high-temperature sintering device, and includes a guide portion 100, a base 200, and a pull-down portion 300.
The guide part 100 includes a set of symmetrically arranged L-shaped baffles 110 with adjustable intervals for guiding the lead frame 1 of the crawler belt output.
The base 200 comprises a turntable 210, the turntable 210 is located below the L-shaped baffle 110, a rotating shaft is arranged at the center of the bottom of the turntable 210 and connected with a rotating device, four collecting parts 220 are arranged on the turntable 210 in a circumferential array, and projections of the two L-shaped baffles 110 on the turntable 210 fall into the movement track of the collecting parts 220.
The collecting part 220 comprises a bottom plate 221, a plurality of limiting rods 222, two pull rods 223 and two springs 224, wherein the bottom plate 221 is arranged on the bottom surface of the turntable 210, the lower ends of the limiting rods 222 are connected with the bottom plate 221, the upper ends of the limiting rods 222 penetrate through the top surface of the turntable 210, the limiting rods 222 enclose a region for placing the lead frame 1, the pull rods 223 are respectively arranged at two ends of the bottom plate 221, the tops of the pull rods 223 penetrate through the top surface of the turntable 210, the springs 224 penetrate through the pull rods 223, the tops of the pull rods 223 are provided with end plates so as to prevent the springs 224 from sliding out of the pull rods 223, the upper ends of the springs 224 are connected with the end plates, the lower ends of the springs 224 are connected with the top surface of the turntable 210, when no external force acts, the bottom plate 221 is kept in a state of being close to the bottom surface of the turntable 210 under the action of the springs 224, so that the limiting rods 222 are kept in a state of extending out of the top surface of the turntable 210, the region enclosed by the limiting rods 222 extending out of the part of the turntable 210 forms a lead frame 1 placing region, the lead frame 1 output from the output end automatically enters the placing region, automatic collection is realized, and the automatic collection is realized, so that the automatic degree is improved, and manual operation is replaced.
The pull-down part 300 is provided corresponding to the bottom plate 221, the number of which is identical to that of the bottom plate 221, and the pull-down part 300 includes a blocking plate 310 and a pull-down assembly 320. The blocking plate 310 is disposed along a radial movement of the turntable 210, and an upper end of the blocking plate 310 serves to block the advance of the lead frame 1 in the output direction of the lead frame 1 and to control the backward movement of the L-shaped barrier 110 so that the lead frame 1 falls down to the placement area along the blocking plate 310. In order to better adapt to lead frames 1 with different sizes, the top of the blocking plate 310 is provided with a screw, the front end of the screw is provided with an adjusting plate 312, so that the front end of the screw is rotationally connected with the adjusting plate 312, and when in use, the distance between the adjusting plate 312 and the center of a placement area can be adjusted by rotating the screw; in order to prevent the adjusting plate 312 from damaging the side edge of the lead frame 1 when the lead frame 1 is blocked from moving forward, the copper sheet is covered on the adjusting plate 312, so that the lead frame 1 can be protected, and the lead frame 1 is prevented from being skewed due to overlarge friction between the side edge of the lead frame 1 and the adjusting plate 312, and the stacking of the lead frames 1 is prevented.
In use, the side of the adjustment plate 312 facing the output end of the track is tangential to the side of the stop bar 222 facing the center of the placement area, so that the leadframe 1 falls along the side of the adjustment plate 312 and the side formed by the stop bar 222.
When the side edge of the lead frame 1 contacts with the adjusting plate 312, the adjusting plate 312 makes the side edge of the lead frame 1 parallel to the copper sheet of the adjusting plate 312 under the inertia of the forward movement of the lead frame 1, and the L-shaped baffles 110 at the two sides are respectively moved outwards at this time, so that the lead frame 1 automatically falls down to the placement area.
The pull-down assembly 320 is movably disposed at the lower end of the blocking plate 310 and is disposed at the bottom surface of the turntable 210. After the turntable 210 rotates the stacked lead frames 1 away from the lower side of the L-shaped baffle 110, the stacked lead frames 1 reach the material taking position, the blocking plate 310 moves towards the center of the turntable 210 along the radial direction of the turntable 210 to be far away from the lead frames 1, and at this time, the bottom plate 221 is pushed downwards by the pull-down assembly 320 along with the movement of the blocking plate 310 so that the upper ends of the limiting rods 222 move downwards out of the top surface of the turntable 210, so that the stacked lead frames can be taken conveniently, and the efficiency is improved.
Specifically, as shown in fig. 3, a plurality of first rollers 111 are provided at the lateral portion of the L-shaped barrier 110 to reduce friction with the lateral portion of the L-shaped barrier 110 when the lead frame 1 is conveyed.
Specifically, as shown in fig. 7 to 8, in order to increase the application range of the mechanism, a plurality of adjusting holes 2211 are formed in the bottom plate 221, the length direction of the adjusting holes 2211 is set towards the center of the bottom plate 221, so that the limiting rods 222 are movably disposed in the adjusting holes 2211, and strip-shaped holes 211 are formed in the turntable 210 corresponding to the adjusting holes 2211, so as to conveniently adjust the distance between the limiting rods 222, and thus, the size of the placement area is adjusted.
Specifically, as shown in fig. 8, a locking member 2221 is disposed at the lower end of the limiting rod 222 after passing through the adjusting hole 2211, a limiting plate 2222 is disposed on the limiting rod 222, the locking member 2221 is located at the bottom surface of the bottom plate 221, the limiting plate 2222 is located at the top surface of the bottom plate 221, the limiting rod 222 is loosened when the locking member 2221 is used for adjusting, the limiting rod 222 is locked on the bottom plate 221 after the limiting rod 222 moves to a predetermined position, and the limiting plate 2222 is used for limiting the limiting rod 222 so as to prevent the limiting rod 222 from falling out of the bottom plate 221 after the limiting member 2221 is loosened.
Specifically, as shown in fig. 4-8, a plurality of groups of avoidance holes 212 are formed on the turntable 210, and a pull rod 223 is inserted into the avoidance holes 212, so that the springs 224 are accommodated in the avoidance holes 212 when the bottom plate 221 moves downward. 4 moving grooves 213 are formed along the radial direction of the turntable 210, the moving grooves 213 are positioned at one side of the placement area facing the center of the turntable 210, and two avoidance holes 212 of each group are symmetrically arranged along the center line of the moving grooves 213. The blocking plate 310 is slidably disposed in the moving groove 213, the pull-down assembly 320 includes a first cylinder 321, the first cylinder 321 is disposed on the bottom surface of the turntable 210, an output end of the first cylinder 321 is connected to one surface of the lower end of the blocking plate 310, and a pull-down member 330 is slidably disposed on the other surface of the lower end of the blocking plate 310, and one end of the pull-down member 330 is connected to one side of the bottom plate 221.
When the movable lead frame is used, the first air cylinder 321 is started, the first air cylinder 321 drives the blocking plate 310 to move towards the center direction of the turntable 210, so that one end, extending out of the upper end of the turntable 210, of the blocking plate 310 is far away from the stacked lead frames 1, the lower end of the blocking plate 310 drives the pull-down piece 330 to move towards the center direction of the turntable 210, and slides along the lower end of the blocking plate 310 under the blocking action of the bottom surface of the turntable 210, so that the bottom plate 221 is pushed to move downwards, the spring 224 is compressed at the moment, the upper end of the limiting rod 222 moves into the turntable 210, and the periphery of the stacked lead frames 1 is limited to move out at the moment, so that the movable lead frame is convenient to take.
Specifically, as shown in fig. 4-6 and 9, in order to make the pull-down member 330 move smoothly, a T-shaped slot 311 is formed on a surface of the blocking plate 310 facing the periphery of the turntable 210, the T-shaped slot 311 is disposed along the length direction of the blocking plate 310, the T-shaped slot 311 is located below the turntable 210, the pull-down member 330 includes an inverted L-shaped connecting rod 331, a cross rod 332, a set of triangular plates 333, one end of a vertical portion of the L-shaped connecting rod 331 is slidably engaged with the T-shaped slot 311, the lower end of the transverse portion is vertically connected with the other end of the vertical portion, the upper end of the transverse portion is connected with the middle portion of the cross rod 332, the triangular plates 333 are respectively disposed at two ends of the cross rod 332, the oblique sides of the triangular plates 333 face the turntable 210, and the bottom sides are located between the top surface of the bottom plate 221 and the bottom surface of the turntable 210.
When the lead frames 1 are stacked and transferred to the material taking position under the driving of the turntable 210, the output end of the first cylinder 321 moves towards the center direction of the turntable 210, so that the blocking plate 310 moves towards the center direction of the turntable 210, the blocking plate 310 pulls the L-shaped connecting rod 331 to move towards the center direction of the turntable 210, the triangle 333 follows the L-shaped connecting rod 331 to synchronously move, the hypotenuse of the triangle 333 moves downwards under the blocking of the bottom of the turntable 210, so as to push the bottom plate 221 to move downwards, the top of the limiting rod 222 moves downwards into the turntable 210, and the spring 224 is contracted into the avoidance hole 212. It should be noted that, in order to ensure that the top surface of the limit lever 222 can completely move down into the turntable 210, the vertical side length of the triangle 333 should be greater than the length of the limit lever 222 extending out of the top surface of the turntable 210, and in order to prevent the triangle 333 from completely entering the lower end of the turntable 210 and failing to reset, a hook portion is disposed on the top surface of the triangle 333, when the triangle 333 moves to the lowest point, the hook portion is hooked with the side of the turntable 210, and in order to ensure the stability of the hooking of the hook portion, a parallel edge is disposed on the periphery of the turntable 210, such that the parallel edge is parallel to the side of the bottom plate 221.
When the limit rods 222 are required to extend out to form a placement area, the first cylinder 321 is started, the first cylinder 321 pushes the blocking plate 310 to move towards the peripheral direction of the turntable 210, the position of the blocking plate 310 in the moving groove 213 is determined according to the width of the lead frame 1, along with the movement of the blocking plate 310, the triangle 333 synchronously moves towards the peripheral direction of the turntable 210, so that the triangle 333 cancels the pushing force on the bottom plate, at the moment, the spring 224 extends to an initial state, and the bottom plate 221 moves upwards under the action of the spring 224, so that each limit rod 222 extends out of the top surface of the turntable 210 to form a placement area.
Example two
As shown in fig. 1-2 and 10-11, the present embodiment provides a lead frame transferring device, which includes a lead frame collecting mechanism as in the first embodiment, a turning portion 400 and a material taking portion 500.
As shown in fig. 10 to 11, the steering part 400 includes a column 410 at one side of the turntable 210, a rotating seat 420 is sleeved outside the column 410, and the rotating seat 420 is rotatably disposed around the column 410.
The material taking part 500 includes a clamping assembly 510, the clamping assembly 510 is disposed on the rotating base 420, and the clamping assembly 510 is used for transferring the lead frames 1 stacked on the turntable 210 onto the conveyor belt 2. The manual transfer is replaced, so that the deviation of the stacked lead frames 1 on the conveying belt 2 is reduced, the suction holes of the suction cups can be accurately aligned with the frame body of the lead frames 1, and the probability of suction cup feeding failure is reduced.
Specifically, as shown in fig. 1 and fig. 10-11, a circular ring 421 is disposed at the top of the rotating seat 420, a spiral guide groove 422 is disposed at the periphery of the rotating seat 420, vertical grooves are disposed at two ends of the guide groove 422, a limit seat 423 is disposed on the circular ring 421, the limit seat 423 is U-shaped, an opening faces the center of the circular ring 421, the outer wall of the circular ring 421 stretches into the U-shaped opening of the limit seat 423, the circular ring 421 is in rolling fit with the limit seat 423, a vertical beam 430 is disposed on one side of the upright column 410, a chute 431 is disposed on one side of the vertical beam 430 facing the upright column 410, the limit seat 423 is slidably disposed in the chute 431, a second cylinder 424 is disposed on an upward side of the lateral portion of the limit seat 423, a support plate is disposed on one side of the vertical beam 430, a guide rod 432 is disposed on the support plate, a second roller is disposed at the front end of the guide rod 432, the second roller is in rolling fit with the chute 431, and the front end of the second roller is disposed in the vertical groove at the upper end of the guide groove 422, and the clamping assembly 510 faces one side of the conveying belt 2.
When the material is taken, the second air cylinder 424 is started, the second air cylinder 424 pushes the limiting seat 423 to move downwards along the sliding groove 431, so that the guide groove 422 of the rotating seat 420 rotates under the action of the guide rod 432 and moves downwards, and the clamping assembly 510 moves to the upper side of the turntable 210 and corresponds to the output end of the crawler belt, so that the clamping assembly 510 clamps the lead frames 1 stacked on the turntable 210.
During transfer, the second air cylinder 424 is started, and the second air cylinder 424 pulls the limiting seat 423 to move upwards, so that the guide groove 422 of the rotating seat 420 rotates under the action of the guide rod 432 and moves upwards, and the clamping assembly 510 transfers the clamped lead frame 1 onto the conveying belt 2.
Specifically, as shown in fig. 10, the clamping assembly 510 includes a transverse plate 511, a gear 512, a set of racks 513, two strip-shaped plates 514, four struts 515, a set of two clamping plates 516, and a third air cylinder 518, one end of the transverse plate 511 is connected with the rotating seat 420, the gear 512 is rotatably disposed on the transverse plate 511, the two racks 513 are respectively engaged with two sides of the gear 512, the middle part of the strip-shaped plate 514 is connected with one end of the rack 513, two ends of the strip-shaped plate 514 are respectively connected with one end of one strut 515, and two ends of the clamping plates 516 are respectively connected with the other end of the strut 515.
In order to prevent the clamping plate 516 from damaging the side edge of the lead frame 1 when clamping the lead frame 1, a rubber pad 517 is covered on one surface of the clamping plate 516, and simultaneously, the friction force between the clamping plate 516 and the side edge of the lead frame 1 can be increased to prevent the lead frame 1 from falling off in the transferring process.
The foregoing description of the preferred embodiments of the invention is merely exemplary and is not intended to be exhaustive or limiting of the 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 (8)
1. The utility model provides a lead frame mechanism that gathers materials, locates high temperature sintering equipment's ejection of compact track output, its characterized in that includes:
the guide part (100) is arranged at the output end of the discharging caterpillar and used for guiding the output lead frame (1), and the guide part (100) comprises a group of L-shaped baffles (110) with adjustable intervals;
The base (200) is positioned below the L-shaped baffle plates (110), the base comprises a turntable (210), a plurality of collecting parts (220) are arranged on the turntable (210) in a circumferential array manner, the two L-shaped baffle plates (110) are positioned above the movement track of the collecting parts (220), the collecting parts (220) comprise a bottom plate (221), the bottom plate (221) is arranged on one surface of the turntable (210), a plurality of limiting rods (222) are arranged on the bottom plate (221), one end of each limiting rod (222) penetrates through the turntable (210) to enable each limiting rod (222) to enclose a placement area for placing a lead frame (1), pull rods (223) are arranged at two ends of the bottom plate (221), and one end of each pull rod (223) penetrates through the turntable (210) and is provided with a spring (224);
The lower pulling part (300) is arranged corresponding to the bottom plate (221) and comprises a blocking plate (310), the blocking plate (310) is arranged along the radial movement of the turntable (210), an adjusting plate (312) is arranged on the blocking plate (310), copper sheets are arranged on the adjusting plate (312) in a covering mode, when the lead frame (1) is conveyed onto the L-shaped baffle (110), one surface of the adjusting plate (312) is used for blocking the lead frame (1) so that the lead frame (1) falls into a placing area, the other end of the blocking plate (310) is provided with a lower pulling component (320), the lower pulling component (320) is used for pushing the bottom plate (221) downwards along the axis of the turntable (210) along with the movement of the blocking plate (310) after the turntable (210) rotates to a preset position, a limit rod (222) is moved out of one surface of the turntable (210), a T-shaped groove (311) is arranged on one surface along the length direction of the blocking plate (310), the lower pulling component (320) comprises a first cylinder (321), one surface of the first cylinder (321) is arranged on the lead frame (210), the output end of the first cylinder (321) is connected with the other surface of the blocking plate (310) is provided with a vertical connecting rod (330), one end of the lower pulling component (330) is matched with the lower pulling component (330) at one end of the lower pulling component (330), one end of the transverse part is upwards connected with the transverse rod (332), two ends of the transverse rod (332) are respectively provided with a triangle (333), the bevel edge of the triangle (333) faces the rotary table (210), the bottom edge is positioned between the bottom plate (221) and one surface of the rotary table (210), the top surface of the triangle (333) is provided with a hook part, and when the triangle (333) moves to the lowest point, the hook part is hung on the side edge of the rotary table (210).
2. The leadframe aggregate mechanism of claim 1, wherein the lateral portion of the L-shaped baffle (110) is provided with a plurality of first rollers (111).
3. The lead frame aggregate mechanism according to claim 1, wherein the bottom plate (221) is provided with a plurality of adjusting holes (2211), the limit rod (222) is movably arranged in the adjusting holes (2211), the turntable (210) is provided with a plurality of bar-shaped holes (211), and the positions of the bar-shaped holes (211) correspond to the positions of the adjusting holes (2211).
4. A lead frame aggregate mechanism according to claim 3, wherein one end of the limit lever (222) is provided with a locking member (2221), the limit lever (222) is provided with a limit plate (2222), the locking member (2221) is located on one surface of the bottom plate (221), and the limit plate (2222) is located on the other surface of the bottom plate (221).
5. The lead frame aggregate mechanism according to claim 1, wherein a plurality of groups of avoidance holes (212) are formed in the turntable (210), a pull rod (223) is arranged in the avoidance holes (212) in a penetrating manner, a plurality of moving grooves (213) are formed in the radial direction of the turntable (210), the moving grooves (213) are located on one side of the placement area, two avoidance holes (212) of each group are symmetrically arranged with respect to one moving groove (213), and the blocking plate (310) is arranged in the moving groove (213) in a sliding manner.
6. A leadframe transfer apparatus, comprising: the leadframe aggregate mechanism of any one of claims 1-5, wherein:
The steering part (400) comprises a stand column (410), a rotating seat (420) is sleeved outside the stand column (410), a circular ring (421) is arranged on the rotating seat (420), a spiral guide groove (422) is formed in the periphery of the rotating seat (420), a limiting seat (423) is arranged on the circular ring (421), a vertical beam (430) is arranged on one side of the stand column (410), a sliding groove (431) is formed in one surface of the vertical beam (430), the limiting seat (423) is slidably arranged in the sliding groove (431), a second air cylinder (424) is arranged on one surface of the limiting seat (423), the second air cylinder (424) is arranged at one end of the vertical beam (430), a guide rod (432) is arranged on one side of the vertical beam (430), a second roller is arranged at one end of the guide rod (432), and the second roller is in rolling fit with the sliding groove (431);
and the material taking part (500) is arranged on the rotating seat (420) and comprises a clamping assembly (510), and the clamping assembly (510) is used for transferring the lead frames (1) stacked on the turntable (210) onto the conveying belt (2).
7. The lead frame transferring apparatus according to claim 6, wherein the clamping assembly (510) comprises a transverse plate (511), one end of the transverse plate (511) is connected with the rotating seat (420), a third cylinder (518) is arranged on the transverse plate (511), a gear (512) is arranged on the transverse plate (511), racks (513) are respectively arranged on two sides of the gear (512), one end of each rack (513) is connected with a strip-shaped plate (514), two ends of each strip-shaped plate (514) are respectively provided with a supporting rod (515), and the end portions of the two supporting rods (515) are connected with clamping plates (516).
8. The leadframe transfer device according to claim 7, characterized in that one side of the clamping plate (516) is covered with a rubber pad (517).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410359273.9A CN117954365B (en) | 2024-03-27 | 2024-03-27 | Lead frame mechanism, transfer device that gathers materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410359273.9A CN117954365B (en) | 2024-03-27 | 2024-03-27 | Lead frame mechanism, transfer device that gathers materials |
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| CN117954365A CN117954365A (en) | 2024-04-30 |
| CN117954365B true CN117954365B (en) | 2024-06-04 |
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| CN202410359273.9A Active CN117954365B (en) | 2024-03-27 | 2024-03-27 | Lead frame mechanism, transfer device that gathers materials |
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