CN210743922U - DFNQFN is with pressurization formula flattening tool - Google Patents
DFNQFN is with pressurization formula flattening tool Download PDFInfo
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- CN210743922U CN210743922U CN201922185558.2U CN201922185558U CN210743922U CN 210743922 U CN210743922 U CN 210743922U CN 201922185558 U CN201922185558 U CN 201922185558U CN 210743922 U CN210743922 U CN 210743922U
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Abstract
The utility model discloses a DFNQFN is with pressurization formula flattening tool relates to electronic packaging technical field, including storage box and flattening frame, the storage box outer wall is equipped with a plurality of jack, and the flattening frame includes first clamp plate, second clamp plate, third clamp plate, inserted bar, screw rod and thread bush, and the screw rod top is equipped with swing joint's regulation pole, and second clamp plate bottom is equipped with a plurality of spring, and the spring bottom is connected with third clamp plate top, and the vertical first bracing piece of a plurality of that is equipped with in third clamp plate top, and third clamp plate top is in the vertical a plurality of second bracing piece that is equipped with in the spring inboard. The utility model discloses can treat flattening printed circuit board strip and evenly exert pressure, can realize the pressurization flattening design of printed circuit board strip, utilize horizontal pressure to resume printed circuit board strip planarization, can effectively strengthen the stability of flattening frame for printed circuit board strip atress is more balanced, can avoid the printed circuit board strip to receive the damage.
Description
Technical Field
The utility model relates to an electronic packaging technology field, more specifically say, the utility model relates to a DFNQFN is with pressurization formula flattening tool.
Background
DFN/QFN platforms are the latest surface mount packaging technology, and the mounting pads, solder mask and stencil pattern design and assembly process of Printed Circuit Boards (PCBs) all need to follow the corresponding principles. DFN/QFN packages overview the DFN/QFN platform has versatility to allow one or more semiconductor devices to be connected within a lead-free package. The packaging process comprises the following steps: soldering lug, silver glue baking, wire welding, plastic packaging, film tearing, post curing, surface treatment, film pasting, cutting, cleaning, UV glue dissolving, testing, taping, packaging and delivery.
The surface mounting and packaging of the printed circuit board strip in the film tearing process can cause the printed circuit board strip to have curling deformation due to stress.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a DFNQFN is with pressurization formula flattening tool, the utility model aims to solve the problem be: how to solve the stress problem of the printed circuit board strip in the packaging process and avoid the curling deformation of the printed circuit board strip.
In order to achieve the above object, the utility model provides a following technical scheme: a pressurized leveling jig for DFNQFN comprises a storage box and a leveling frame, wherein the leveling frame is movably arranged on the inner side of the storage box, the storage box is of an open structure, a plurality of jacks are symmetrically and vertically arranged on two sides of the outer wall of the storage box, the leveling frame comprises a first pressing plate, a second pressing plate and a third pressing plate, the second pressing plate is arranged between the first pressing plate and the third pressing plate, inserting rods matched with the jacks are respectively and movably arranged on two sides of the inner wall of the first pressing plate, the inserting rods extend to the outer side of the first pressing plate, a rotatably connected screw rod is vertically arranged in the center of the top of the second pressing plate, the top of the screw rod penetrates through the first pressing plate and extends to the upper part of the first pressing plate, a thread sleeve matched with the screw rod is arranged in the center of the top of the first pressing plate, an adjusting rod movably connected is arranged at the top of the screw rod, a plurality of springs are arranged, the bottom of the spring is connected with the top of the third pressing plate, a plurality of first supporting rods are vertically arranged at the top of the third pressing plate, and a plurality of second supporting rods are vertically arranged at the top of the third pressing plate on the inner side of the spring.
The embodiment of the utility model provides a DFNQFN is with pressurization formula flattening tool, the printed circuit board strip that will wait to flatten is put into the storage box inner wall, then put flattening frame into the storage box inside, according to the quantity height of the printed circuit board strip that waits to flatten, install flattening frame suitable height, outwards push the slide bar, can outwards push the inserted bar, the inserted bar inserts the jack inboard, can realize the connection of first clamp plate and storage box, rotate the regulation pole, can rotate the screw rod, the screw rod slides downwards or upwards in the thread bush, and then drive the second clamp plate and carry out the elevating movement, the third clamp plate carries out the elevating movement along with the second clamp plate, the spring realizes the elastic connection of second clamp plate and third clamp plate, make the third clamp plate use the pressure of waiting to flatten the printed circuit board strip and cushion, make the pressure that waits to flatten the printed circuit board strip and receive more even, can realize the pressurization flattening of printed circuit board strip and stereotype, utilize horizontal pressure to resume printed circuit board strip planarization, first bracing piece can be to first clamp plate, the movement track of second clamp plate and third clamp plate guides, can effectively strengthen the stability of leveling frame, first bracing piece can guide the compression resilience route of spring, can further strengthen the stability of leveling frame, make printed circuit board strip atress more balanced, can avoid the printed circuit board strip to receive the damage, in order to solve the problem of proposing among the above-mentioned background art.
In a preferred embodiment, the storage box comprises a bottom plate and a side supporting plate, a plurality of screws are arranged on the outer side of the side supporting plate, the side supporting plate is connected with the bottom plate through the screws, the bottom plate supports a printed circuit board strip to be leveled, and the side supporting plate can support the side of the printed circuit board strip to be leveled.
In a preferred embodiment, the first pressing plate inner wall bilateral symmetry be equipped with inserted bar assorted spout, the inserted bar top is close to thread bush one end is equipped with the slide bar, the slide bar top extends to first pressing plate top, first pressing plate top be equipped with slide bar assorted logical groove, lead to the groove with the spout link up, the spout supplies the inserted bar slides, through sliding the slide bar can realize right the inserted bar carries out slide adjusting.
In a preferred embodiment, second clamp plate top is equipped with the connecting block, the screw rod bottom is equipped with the connector, the connecting block top be equipped with connector assorted spread groove, the connector outer wall is equipped with the go-between, the connecting block inside in the spread groove outside be equipped with go-between assorted ring channel, the screw rod rotates the in-process, the connector is in the inboard slip of spread groove, the go-between is in the inboard slip of ring channel.
In a preferred embodiment, the first supporting rod penetrates through the second pressing plate and the first pressing plate and extends to the position above the first pressing plate, so that the first supporting rod can stably support the first pressing plate, the second pressing plate and the third pressing plate.
In a preferred embodiment, a limiting block is arranged above the second pressing plate and extends to the top of the second supporting rod, so that the second pressing plate and the third pressing plate can be stably supported by the second supporting rod, the second supporting rod can be limited by the limiting block, and the second supporting rod can be ensured to penetrate through the second pressing plate all the time.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a set up storage box and flattening frame, the flattening frame includes first clamp plate, second clamp plate, third clamp plate, inserted bar, screw rod, thread bush, regulation pole and spring, can treat flattening printed circuit board strip and evenly exert pressure, can realize the pressurization flattening of printed circuit board strip and stereotype, utilizes horizontal pressure to resume printed circuit board strip planarization.
2. The utility model discloses a set up first bracing piece and second bracing piece, can effectively strengthen the stability of leveling frame for the printed circuit board strip atress is more balanced, can avoid the printed circuit board strip to receive the damage.
Drawings
Fig. 1 is a front view of the whole body of the present invention.
Fig. 2 is a schematic structural diagram of the storage case of the present invention.
Fig. 3 is a front view of the leveling frame of the present invention.
Fig. 4 is a front sectional view of the leveling frame of the present invention.
Fig. 5 is an enlarged schematic view of a portion a in fig. 4 according to the present invention.
The reference signs are: the material storage box comprises a material storage box 1, a leveling frame 2, a jack 3, a first pressure plate 4, a second pressure plate 5, a third pressure plate 6, an inserted rod 7, a screw rod 8, a threaded sleeve 9, a regulating rod 10, a spring 11, a first supporting rod 12, a second supporting rod 13, a bottom plate 14, a side supporting plate 15, a screw 16, a sliding groove 17, a sliding rod 18, a through groove 19, a connecting block 20, a connecting head 21, a connecting groove 22, a connecting ring 23, a ring groove 24 and a limiting block 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The pressurized leveling jig for the DFNQFN comprises a storage box 1 and a leveling frame 2, wherein the leveling frame 2 is movably arranged on the inner side of the storage box 1, the storage box 1 is of an open structure, a plurality of jacks 3 are symmetrically and vertically arranged on two sides of the outer wall of the storage box 1, the leveling frame 2 comprises a first pressing plate 4, a second pressing plate 5 and a third pressing plate 6, the second pressing plate 5 is arranged between the first pressing plate 4 and the third pressing plate 6, insertion rods 7 matched with the jacks 3 are respectively and movably arranged on two sides of the inner wall of the first pressing plate 4, the insertion rods 7 extend to the outer side of the first pressing plate 4, a screw 8 in rotary connection is vertically arranged in the center of the top of the second pressing plate 5, the top of the screw 8 penetrates through the first pressing plate 4 and extends to the upper side of the first pressing plate 4, a thread sleeve 9 matched with the screw 8 is arranged in the center of the top of the first pressing plate 4, the top of the screw 8 is provided with a movably connected adjusting rod 10, the bottom of the second pressing plate 5 is provided with a plurality of springs 11, and the bottoms of the springs 11 are connected with the top of the third pressing plate 6;
the storage box 1 comprises a bottom plate 14 and a side supporting plate 15, wherein a plurality of screws 16 are arranged on the outer side of the side supporting plate 15, the side supporting plate 15 is connected with the bottom plate 14 through the screws 16, the bottom plate 14 supports a printed circuit board strip to be leveled, and the side supporting plate 15 can support the side surface of the printed circuit board strip to be leveled;
sliding grooves 17 matched with the inserting rods 7 are symmetrically formed in two sides of the inner wall of the first pressing plate 4, sliding rods 18 are arranged at the top of the inserting rods 7 close to one ends of the threaded sleeves 9, the top of each sliding rod 18 extends to the upper side of the first pressing plate 4, through grooves 19 matched with the sliding rods 18 are formed in the top of the first pressing plate 4, the through grooves 19 are communicated with the sliding grooves 17, the sliding grooves 17 are used for the sliding of the inserting rods 17, and the sliding adjustment of the inserting rods 17 can be realized by sliding the sliding rods 18;
5 tops of second clamp plate are equipped with connecting block 20, the 8 bottoms of screw rod are equipped with connector 21, connecting block 20 tops be equipped with connector 21 assorted spread groove 22, the outer wall of connector 21 is equipped with go-between 23, connecting block 20 inside in the spread groove 22 outside be equipped with go-between 23 assorted ring channel 24, screw rod 8 rotates the in-process, connector 21 is in spread groove 22 inboard slides, go-between 23 is in the 24 inboard slides of ring channel.
The implementation mode is specifically as follows: when the leveling device is used, the leveling frame 2 comprises a storage box 1 and a leveling frame 2, a printed circuit board strip to be leveled is placed on the inner wall of the storage box 1 through arranging the storage box 1 and the leveling frame 2, the first pressing plate 4, a second pressing plate 5, a third pressing plate 6, an inserted link 7, a screw 8, a threaded sleeve 9, an adjusting rod 10 and a spring 11, then the leveling frame 2 is placed inside the storage box 1, the leveling frame 2 is installed at a proper height according to the number and height of the printed circuit board strip to be leveled, the slide rod 18 is pushed outwards, the inserted link 7 can be pushed outwards, the inserted link 7 is inserted into the inner side of the insertion hole 3, the connection between the first pressing plate 4 and the storage box 1 can be realized, the adjusting rod 10 is rotated, the screw 8 can be rotated, the screw 8 slides downwards or upwards in the threaded sleeve 9, so as to drive the second pressing plate 5 to perform lifting motion, the third pressing plate 6 performs lifting motion along with the second pressing plate 5, and the spring 11, the third pressing plate 6 is used for buffering the pressure applied to the printed circuit board strip to be leveled, so that the pressure applied to the printed circuit board strip to be leveled is more uniform, the pressing, leveling and shaping of the printed circuit board strip can be realized, and the smoothness of the printed circuit board strip is recovered by using the horizontal pressure; the embodiment specifically solves the problem that the printed circuit board strip has curling deformation due to stress in the process of surface mounting and packaging the printed circuit board strip in a film tearing process in the prior art;
as shown in fig. 1 and fig. 3-4, the pressurized leveling jig for DFNQFN further comprises a plurality of first support rods 12 vertically arranged at the top of the third press plate 6, and a plurality of second support rods 13 vertically arranged at the top of the third press plate 6 and on the inner side of the springs 11;
the first supporting rod 12 penetrates through the second pressing plate 5 and the first pressing plate 4 and extends to the position above the first pressing plate 4, so that the first supporting rod 12 can stably support the first pressing plate 4, the second pressing plate 5 and the third pressing plate 6;
the top of the second supporting rod 13 penetrates through the second pressing plate 5 and extends to a limiting block 25 is arranged above the second pressing plate 5, so that the second supporting rod 13 can stably support the second pressing plate 5 and the third pressing plate 6, the limiting block 25 can limit the second supporting rod 13, and the second supporting rod 13 is guaranteed to penetrate through the second pressing plate 5 all the time.
The implementation mode is specifically as follows: through setting up first bracing piece 12 and second bracing piece 13, first bracing piece 12 can guide the movement track of first clamp plate 4, second clamp plate 5 and third clamp plate 6, can effectively strengthen leveling frame 2's stability, and first bracing piece 13 can guide the compression resilience route of spring 11, can further strengthen leveling frame 2's stability for printed circuit board strip atress is more balanced, can avoid printed circuit board strip to receive the damage.
The utility model discloses the theory of operation:
referring to the attached drawings 1-5 of the specification, by arranging the storage box 1 and the leveling frame 2, the leveling frame 2 comprises a first pressing plate 4, a second pressing plate 5, a third pressing plate 6, an inserted rod 7, a screw 8, a threaded sleeve 9, an adjusting rod 10 and a spring 11, so that the printed circuit board strip to be leveled can be uniformly pressed, the pressing, leveling and shaping of the printed circuit board strip can be realized, and the smoothness of the printed circuit board strip is recovered by using horizontal pressure;
furthermore, referring to the attached drawings 1 and 3-4 of the specification, the stability of the leveling frame 2 can be effectively enhanced by arranging the first supporting rod 12 and the second supporting rod 13, so that the stress of the printed circuit board strip is more balanced, and the printed circuit board strip can be prevented from being damaged.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a DFNQFN is with pressurization formula flattening tool, includes storage box (1) and flattening frame (2), its characterized in that: the leveling frame (2) is movably arranged on the inner side of the storage box (1), the storage box (1) is of an open structure, a plurality of jacks (3) are vertically arranged on the two sides of the outer wall of the storage box (1), the leveling frame (2) comprises a first pressing plate (4), a second pressing plate (5) and a third pressing plate (6), the second pressing plate (5) is arranged between the first pressing plate (4) and the third pressing plate (6), inserting rods (7) matched with the jacks (3) are respectively movably arranged on the two sides of the inner wall of the first pressing plate (4), the inserting rods (7) extend to the outer side of the first pressing plate (4), a screw rod (8) connected in a rotating mode is vertically arranged at the center of the top of the second pressing plate (5), the top of the screw rod (8) penetrates through the first pressing plate (4) and extends to the upper side of the first pressing plate (4), a thread sleeve (9) matched with the screw rod (8) is arranged at the center of the top of the first pressing plate (4), screw rod (8) top is equipped with swing joint's regulation pole (10), second clamp plate (5) bottom is equipped with a plurality of spring (11), spring (11) bottom with third clamp plate (6) top is connected, the vertical first bracing piece of a plurality of (12) that is equipped with in third clamp plate (6) top, third clamp plate (6) top in spring (11) inboard is vertical to be equipped with a plurality of second bracing piece (13).
2. The pressurized leveling jig for the DFNQFN as claimed in claim 1, wherein the storage case (1) comprises a bottom plate (14) and a side supporting plate (15), a plurality of screws (16) are arranged on the outer side of the side supporting plate (15), and the side supporting plate (15) is connected with the bottom plate (14) through the screws (16).
3. The pressurized leveling jig for the DFNQFN according to claim 1, wherein sliding grooves (17) matched with the inserting rods (7) are symmetrically formed in two sides of the inner wall of the first pressing plate (4), a sliding rod (18) is arranged at one end, close to the threaded sleeve (9), of the top of each inserting rod (7), and the top of each sliding rod (18) extends to the position above the first pressing plate (4).
4. The pressurized leveling jig for the DFNQFN as claimed in claim 3, wherein a through groove (19) matched with the sliding rod (18) is formed at the top of the first pressing plate (4), and the through groove (19) is communicated with the sliding groove (17).
5. The pressurized leveling jig for the DFNQFN as claimed in claim 1, wherein a connecting block (20) is arranged at the top of the second pressing plate (5), a connecting head (21) is arranged at the bottom of the screw (8), and a connecting groove (22) matched with the connecting head (21) is arranged at the top of the connecting block (20).
6. The pressurized leveling jig for the DFNQFN as claimed in claim 5, wherein a connecting ring (23) is disposed on the outer wall of the connecting head (21), and an annular groove (24) matched with the connecting ring (23) is disposed inside the connecting block (20) and outside the connecting groove (22).
7. The pressurized flattening jig for DFNQFN according to claim 1, characterized in that said first supporting rod (12) passes through said second pressing plate (5) and said first pressing plate (4) and extends above said first pressing plate (4).
8. The pressurized leveling jig for the DFNQFN as claimed in claim 1, wherein a limiting block (25) is arranged at the top of the second supporting rod (13) which passes through the second pressing plate (5) and extends above the second pressing plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922185558.2U CN210743922U (en) | 2019-12-09 | 2019-12-09 | DFNQFN is with pressurization formula flattening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922185558.2U CN210743922U (en) | 2019-12-09 | 2019-12-09 | DFNQFN is with pressurization formula flattening tool |
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| Publication Number | Publication Date |
|---|---|
| CN210743922U true CN210743922U (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922185558.2U Active CN210743922U (en) | 2019-12-09 | 2019-12-09 | DFNQFN is with pressurization formula flattening tool |
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| CN (1) | CN210743922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117693124A (en) * | 2024-02-02 | 2024-03-12 | 苏州锐杰微科技集团有限公司 | Leveling mechanism for PCB production drying and working method thereof |
-
2019
- 2019-12-09 CN CN201922185558.2U patent/CN210743922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117693124A (en) * | 2024-02-02 | 2024-03-12 | 苏州锐杰微科技集团有限公司 | Leveling mechanism for PCB production drying and working method thereof |
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