CN220717603U - Lead frame bending device - Google Patents
Lead frame bending device Download PDFInfo
- Publication number
- CN220717603U CN220717603U CN202322486399.6U CN202322486399U CN220717603U CN 220717603 U CN220717603 U CN 220717603U CN 202322486399 U CN202322486399 U CN 202322486399U CN 220717603 U CN220717603 U CN 220717603U
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- block
- lead frame
- supporting
- supporting block
- bending device
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- 238000005452 bending Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000002457 bidirectional effect Effects 0.000 claims description 15
- 238000004080 punching Methods 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 9
- 238000004377 microelectronic Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000218202 Coptis Species 0.000 description 1
- 235000002991 Coptis groenlandica Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Lead Frames For Integrated Circuits (AREA)
Abstract
The utility model discloses a lead frame bending device, which relates to the technical field of microelectronics and comprises a base, wherein an upright post is arranged above the base, a top seat is arranged on the top surface of the upright post, a first adjusting mechanism is arranged inside the base, a workbench with a changeable size is arranged above the first adjusting mechanism, a second adjusting mechanism is arranged inside the top seat, a second air cylinder is arranged at the center of the bottom surface of the top seat, a pressing plate is arranged at the working end of the second air cylinder, first air cylinders are symmetrically arranged at the two sides of the pressing plate, and connecting rods and pressing plates are arranged at the working ends of the first air cylinders. According to the utility model, the workbench is in a spliced structure, the distance between the first supporting block and the second supporting block is changed through the first adjusting mechanism, the proper spliced blocks are selected according to the distance, the first supporting block, the second supporting block and the spliced blocks are combined together to form the workbench, the size of the workbench can be adjusted according to the size of the lead frame, and the workbench is suitable for lead frames with various specifications and has a wide application range.
Description
Technical Field
The utility model relates to the technical field of microelectronics, in particular to a lead frame bending device.
Background
The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electric connection between an internal circuit lead-out end of the chip and an external lead by means of bonding materials (gold wires, aluminum wires and copper wires) to form an electric loop, plays a role of a bridge connected with an external lead, and most of semiconductor integrated blocks need to use the lead frame, and is an important basic material in the electronic information industry, such as TO, DIP, ZIP, SIP, SOP, SSOP, TSSOP, QFP (QFJ), SOD, SOT and the like. The production is mainly carried out by a die stamping method and a chemical etching method.
The lead frame comprises a small island, a fixed adhesive tape, a silver plating area, inner legs, connecting ribs, outer legs, a frame body and holes, wherein the small island is positioned in the center of the lead frame and used for fixing a chip, grounding and conducting heat, the fixed adhesive tape is used for guaranteeing that the inner legs are not deformed, the silver plating area is guaranteed to be welded with gold threads, the inner legs are used for being connected with the chip, the connecting ribs are used for supporting leads to prevent resin from flowing outwards, the outer legs are used for being connected with a printed substrate, the frame body is used for supporting the lead frame, the holes are used for preventing the resin from being stripped from the lead frame, and the outer legs are required to be bent and molded after the lead frame is molded.
Because the lead frame has multiple specifications, the sizes of different specifications are different, the sizes of the workbench required in the process of bending the pins are also different, the workbench of the lead frame bending device in the prior art is generally fixed in size and cannot be adjusted according to the sizes of the lead frames, and the lead frame bending device can only bend and process the lead frames of a single model when in use and is inconvenient to use.
Disclosure of Invention
The utility model aims to provide a lead frame bending device, which solves the problems that in the prior art, the size of a workbench of the lead frame bending device is generally fixed, the workbench cannot be adjusted according to the size of a lead frame, and when the lead frame bending device is used, only a single type of lead frame can be subjected to bending processing, so that the lead frame bending device is inconvenient to use.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model relates to a lead frame bending device which comprises a base, wherein an upright post is arranged above the base, a top seat is arranged on the top surface of the upright post, a first adjusting mechanism is arranged inside the base, a workbench with a changeable size is arranged above the first adjusting mechanism, a second adjusting mechanism is arranged inside the top seat, a second air cylinder is arranged at the center of the bottom surface of the top seat, a pressing plate is arranged at the working end of the second air cylinder, first air cylinders are symmetrically arranged at the two sides of the pressing plate, the fixed end of the first air cylinder is connected with the second adjusting mechanism, a connecting rod is arranged at the working end of the first air cylinder, and a pressing plate is arranged at the bottom end of the connecting rod.
Further, the workbench comprises a first supporting block and a second supporting block, a splicing block is detachably connected between the first supporting block and the second supporting block, and the bottom surfaces of the first supporting block and the second supporting block are connected with the first adjusting mechanism through supporting rods.
Still further, a first clamping groove is formed in the right side of the first supporting block, a first clamping block is connected to the left side of the second supporting block, and when the first supporting block and the second supporting block are spliced together, the first clamping block is clamped into the first clamping groove; the left and right sides of concatenation piece is provided with second joint piece and second joint groove respectively, works as the concatenation piece is connected first supporting shoe with between the second supporting shoe, second joint piece joint is in the first joint groove, first joint piece joint is in the second joint groove.
Still further, the first clamping groove the second clamping groove all sets up to the dovetail groove, first joint piece the second joint piece all sets up to the trapezoid block.
Still further, first adjustment mechanism includes first motor, first motor installs in the inside cavity of base, the output shaft of first motor has first two-way screw, equal threaded connection has first movable block on the positive and negative screw thread section of first two-way screw, the top surface of first movable block is connected with the bracing piece, first adjustment tank has been seted up to the top surface of base, the top of bracing piece extends to the top of first adjustment tank and with first supporting shoe or second supporting shoe is connected.
Still further, the inside cavity bottom of base is provided with first guide block, first spout has been seted up on the first guide block, the bottom surface of first movable block be provided with first spout assorted first slider.
Still further, second adjustment mechanism includes the second motor, the second motor is installed in the inside cavity of footstock, the output shaft of second motor has the two-way lead screw of second, all threaded connection has the second movable block on the positive and negative screw thread section of two-way lead screw of second, the second adjustment tank has been seted up to the bottom surface of footstock, the bottom of second movable block passes behind the second adjustment tank with first cylinder is connected.
Still further, the inside cavity top surface of footstock is provided with the second guide block, the second spout has been seted up to the bottom surface of second guide block, the top surface of second movable block be provided with second spout assorted second slider.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the utility model, the workbench is in a spliced structure, the distance between the first supporting block and the second supporting block is changed through the first adjusting mechanism, the proper spliced blocks are selected according to the distance, the first supporting block, the second supporting block and the spliced blocks are combined together to form the workbench, the size of the workbench can be adjusted according to the size of the lead frame, and the workbench is suitable for lead frames with various specifications and has a wide application range.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a front view of a lead frame bending device of the present utility model;
FIG. 2 is a view showing the combination of the first support block, the second support block and the splice block according to the present utility model;
FIG. 3 is a view showing the separation state of the first support block, the second support block and the splicing block according to the present utility model;
FIG. 4 is a schematic view of a first moving block and a first guiding block according to the present utility model;
FIG. 5 is a top view of the base of the present utility model;
FIG. 6 is a bottom view of the top base of the present utility model;
reference numerals illustrate: 1. a base; 101. a first adjustment tank; 2. a column; 3. a top base; 301. a second regulating groove; 4. a first motor; 5. the first bidirectional screw rod; 6. a first moving block; 7. a first guide block; 8. a support rod; 9. a first support block; 901. a first clamping groove; 10. a second support block; 1001. a first clamping block; 11. splicing blocks; 1101. a second clamping block; 1102. a second clamping groove; 12. a second motor; 13. a second bi-directional lead screw; 14. a second moving block; 15. a second guide block; 16. a first cylinder; 17. a connecting rod; 18. a stamping plate; 19. a second cylinder; 20. a compacting plate; 21. and a lead frame.
Detailed Description
As shown in fig. 1-6, a lead frame bending device comprises a base 1, a stand column 2 is connected to the upper side of the base 1 through a bolt, a top seat 3 is connected to the top surface of the stand column 2 through a bolt, a first adjusting mechanism is arranged in the base 1, a workbench with a changeable size is arranged above the first adjusting mechanism, a second adjusting mechanism is arranged in the top seat 3, a second air cylinder 19 is arranged in the center of the bottom surface of the top seat 3, a pressing plate 20 is connected to the working end of the second air cylinder 19, a first air cylinder 16 is symmetrically arranged on two sides of the pressing plate 20, a fixed end of the first air cylinder 16 is connected with the second adjusting mechanism, a connecting rod 17 is arranged at the working end of the first air cylinder 16, and a punching plate 18 is connected to the bottom end of the connecting rod 17.
As shown in fig. 2 and 3, the workbench comprises a first supporting block 9 and a second supporting block 10, a splicing block 11 is detachably connected between the first supporting block 9 and the second supporting block 10, and the bottom surfaces of the first supporting block 9 and the second supporting block 10 are connected with the first adjusting mechanism through a supporting rod 8. A first clamping groove 901 is formed in the right side of the first supporting block 9, and a first clamping block 1001 is connected to the left side of the second supporting block 10; when the lead frame is smaller in size, the first supporting block 9 and the second supporting block 10 are spliced together, and the first clamping block 1001 is clamped into the first clamping groove 901; the left and right sides of concatenation piece 11 is provided with second joint piece 1101 and second joint groove 1102 respectively, and when lead frame's size is great, concatenation piece 11 connects first supporting shoe 9 with between the second supporting shoe 10, second joint piece 1101 joint is in the first joint groove 901, first joint piece 1001 joint is in the second joint groove 1102. Specifically, the first clamping groove 901 and the second clamping groove 1102 are both trapezoidal grooves, the first clamping groove 901 and the second clamping groove 1102 are not through grooves, limiting tables are arranged on the bottom surfaces of the first clamping groove 901 and the second clamping groove 1102, the splicing block 11 can be limited in the vertical direction, the stability of the splicing block 11 after splicing is ensured, and the first clamping block 1001 and the second clamping block 1101 are both trapezoidal blocks; in the utility model, the splicing blocks 11 are provided with various sizes, the proper splicing blocks 11 can be selected according to the sizes of the lead frames, the splicing blocks 11 are detachably connected between the first supporting blocks 9 and the second supporting blocks 10, the size of the workbench can be adjusted according to the sizes of the lead frames, and the application range is wide.
The first adjusting mechanisms comprise first motors 4, the first motors 4 are installed in the inner cavities of the base 1, output shafts of the first motors 4 are connected with first bidirectional screw rods 5, first moving blocks 6 are connected to positive and negative thread sections of the first bidirectional screw rods 5 in a threaded mode, the top surfaces of the first moving blocks 6 are connected with supporting rods 8, the two first adjusting mechanisms are arranged in parallel, the two first adjusting mechanisms are arranged in front of and behind each other, the workbench is supported by four supporting rods 8, stability of the workbench can be guaranteed, as shown in fig. 5, two first adjusting grooves 101 are formed in the top surface of the base 1, each first adjusting mechanism corresponds to one first adjusting groove 101, and the tops of the supporting rods 8 extend to the upper portion of the first adjusting grooves 101 and are connected with the first supporting blocks 9 or the second supporting blocks 10; when the two-way screw rod is used, the first motor 4 drives the first two-way screw rod 5 to rotate, and the two first moving blocks 6 are close to or far away from each other, so as to drive the first supporting block 9 and the second supporting block 10 to be close to or far away from each other; when the lead frame is large in size, the two first moving blocks 6 are far away from each other, the first supporting blocks 9 and the second supporting blocks 10 are driven to be far away from each other, the splicing blocks 11 are inserted between the first supporting blocks 9 and the second supporting blocks 10, and the area of the workbench is increased.
The bottom of the inner cavity of the base 1 is connected with a first guide block 7 through a bolt, as shown in fig. 4, a first chute is formed on the first guide block 7, and a first sliding block matched with the first chute is arranged on the bottom surface of the first moving block 6; when the first motor 4 drives the first bidirectional screw rod 5 to rotate, the first moving block 6 moves along the first bidirectional screw rod 5, the first sliding block at the bottom of the first moving block 6 moves along the first sliding groove on the first guide block 7, the first moving block 6 is prevented from rotating, and the first moving block 6 is ensured to move along the first bidirectional screw rod 5.
The second adjusting mechanism comprises a second motor 12, the second motor 12 is installed in the inner cavity of the top seat 3, an output shaft of the second motor 12 is connected with a second bidirectional screw rod 13, both positive and negative thread sections of the second bidirectional screw rod 13 are in threaded connection with a second moving block 14, two second adjusting grooves 301 are formed in the bottom surface of the top seat 3, the two second adjusting grooves 301 are arranged on two sides of a second air cylinder 19, and the bottom of the second moving block 14 passes through the second adjusting grooves 301 and then is connected with the first air cylinder 16; the second motor 12 works to drive the second bidirectional screw rod 13 to rotate, and then drive the two second moving blocks 14 to move close to or away from each other, so that the two first cylinders 16 move close to or away from each other, and the distance between the two stamping plates 18 is adjusted, so that the distance is matched with the size of the lead frame.
The top surface of the inner cavity of the top seat 3 is connected with a second guide block 15 through a bolt, a second sliding groove is formed in the bottom surface of the second guide block 15, and a second sliding block matched with the second sliding groove is arranged on the top surface of the second moving block 14; the second guide block 15 has the same structure as the first guide block 7, and the second moving block 14 has the same structure as the first moving block 6.
The working process of the utility model is as follows:
firstly, the area of a workbench is adjusted according to the size of a lead frame, a first motor 4 is started, the first motor 4 drives a first bidirectional screw rod 5 to rotate, two first moving blocks 6 are mutually far away, a first supporting block 9 and a second supporting block 10 are mutually far away, a splicing block 11 is inserted between the first supporting block 9 and the second supporting block 10, and the area of the workbench is increased;
then, placing the lead frame 21 on a workbench, starting a second air cylinder 19, and driving a pressing plate 20 to move downwards by the second air cylinder 19 to press the lead frame;
then, the second motor 12 is started, the second motor 12 works to drive the second bidirectional screw rod 13 to rotate, and then drive the two second moving blocks 14 to move away from each other, so that the two first air cylinders 16 move away from each other, and the distance between the two stamping plates 18 is adjusted to be matched with the size of the lead frame 21;
finally, the first cylinder 16 is started, and the first cylinder 16 drives the connecting rod 17 and the stamping plate 18 to move downwards to bend the pins of the lead frame 21.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (8)
1. A lead frame bending device which is characterized in that: including base (1), the top of base (1) is provided with stand (2), the top surface of stand (2) is provided with footstock (3), the inside of base (1) is provided with first adjustment mechanism, the top of first adjustment mechanism is provided with the workstation that the size can change, the inside of footstock (3) is provided with second adjustment mechanism, the bottom surface central point of footstock (3) puts and is provided with second cylinder (19), the work end of second cylinder (19) is provided with pressure strip (20), the bilateral symmetry of pressure strip (20) is provided with first cylinder (16), the stiff end of first cylinder (16) with second adjustment mechanism is connected, the work end of first cylinder (16) is provided with connecting rod (17), the bottom of connecting rod (17) is provided with punching press board (18).
2. The lead frame bending device of claim 1, wherein: the workbench comprises a first supporting block (9) and a second supporting block (10), wherein a splicing block (11) is detachably connected between the first supporting block (9) and the second supporting block (10), and the bottom surfaces of the first supporting block (9) and the second supporting block (10) are connected with the first adjusting mechanism through supporting rods (8).
3. The lead frame bending device of claim 2, wherein: a first clamping groove (901) is formed in the right side of the first supporting block (9), a first clamping block (1001) is connected to the left side of the second supporting block (10), and when the first supporting block (9) and the second supporting block (10) are spliced together, the first clamping block (1001) is clamped into the first clamping groove (901); the left and right sides of concatenation piece (11) are provided with second joint piece (1101) and second joint groove (1102) respectively, work as concatenation piece (11) are connected between first supporting shoe (9) and second supporting shoe (10), second joint piece (1101) joint is in first joint groove (901), first joint piece (1001) joint is in second joint groove (1102).
4. A lead frame bending device according to claim 3, wherein: the first clamping grooves (901) and the second clamping grooves (1102) are both trapezoid grooves, and the first clamping blocks (1001) and the second clamping blocks (1101) are both trapezoid blocks.
5. The lead frame bending device of claim 2, wherein: the first adjusting mechanism comprises a first motor (4), the first motor (4) is installed in an inner cavity of the base (1), an output shaft of the first motor (4) is connected with a first bidirectional screw rod (5), a first moving block (6) is connected to a positive thread section and a negative thread section of the first bidirectional screw rod (5) in a threaded mode, the top surface of the first moving block (6) is connected with a supporting rod (8), a first adjusting groove (101) is formed in the top surface of the base (1), and the top of the supporting rod (8) extends to the upper portion of the first adjusting groove (101) and is connected with a first supporting block (9) or a second supporting block (10).
6. The lead frame bending device of claim 5, wherein: the novel sliding block is characterized in that a first guide block (7) is arranged at the bottom of the inner cavity of the base (1), a first sliding groove is formed in the first guide block (7), and a first sliding block matched with the first sliding groove is arranged on the bottom surface of the first moving block (6).
7. The lead frame bending device of claim 1, wherein: the second adjusting mechanism comprises a second motor (12), the second motor (12) is installed in the inner cavity of the footstock (3), an output shaft of the second motor (12) is connected with a second bidirectional screw rod (13), both positive and negative thread sections of the second bidirectional screw rod (13) are connected with second moving blocks (14) in a threaded mode, a second adjusting groove (301) is formed in the bottom surface of the footstock (3), and the bottom of the second moving blocks (14) penetrates through the second adjusting groove (301) and then is connected with the first air cylinder (16).
8. The lead frame bending device of claim 7, wherein: the inner cavity top surface of footstock (3) is provided with second guide block (15), the second spout has been seted up to the bottom surface of second guide block (15), the top surface of second movable block (14) be provided with second spout assorted second slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322486399.6U CN220717603U (en) | 2023-09-13 | 2023-09-13 | Lead frame bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322486399.6U CN220717603U (en) | 2023-09-13 | 2023-09-13 | Lead frame bending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220717603U true CN220717603U (en) | 2024-04-05 |
Family
ID=90496335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322486399.6U Active CN220717603U (en) | 2023-09-13 | 2023-09-13 | Lead frame bending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220717603U (en) |
-
2023
- 2023-09-13 CN CN202322486399.6U patent/CN220717603U/en active Active
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