CN106077882A - A kind of BGA for printed board clamping tears down and reconstruct mounted welder and using method - Google Patents
A kind of BGA for printed board clamping tears down and reconstruct mounted welder and using method Download PDFInfo
- Publication number
- CN106077882A CN106077882A CN201610593045.3A CN201610593045A CN106077882A CN 106077882 A CN106077882 A CN 106077882A CN 201610593045 A CN201610593045 A CN 201610593045A CN 106077882 A CN106077882 A CN 106077882A
- Authority
- CN
- China
- Prior art keywords
- printed board
- clamping
- rail plate
- guide rail
- screw
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/082—Flux dispensers; Apparatus for applying flux
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
Abstract
The present invention relates to a kind of BGA for printed board clamping and tear down and reconstruct mounted welder and using method, the first method of clamping: the side of printed board is inserted in two clamping devices I on fixing end guide rail, the opposite side of printed board is inserted in two clamping devices II on mobile rail plate, printed board is i.e. fastened on fixing end guide rail and rail plate, can not deviate from.The second method of clamping: be inserted in by the four of printed board installing holes on two clamping pillars I and two clamping pillars II respectively, printed board is i.e. fastened on fixing end guide rail and rail plate.Two printed board support meanss are placed in the rectangular channel on chassis so that printed board support means supports printed board medium position just.Effect is: follow-up tear down and reconstruct weldering printed board on bga chip time will not because of the most firmly make in the middle part of printed board occur under bending deformation, it is ensured that BGA device reprocess progress.
Description
Technical field
The present invention relates to a kind of BGA for printed board clamping and tear down and reconstruct mounted welder and using method, be to carry out printed board
Upper BGA device is disassembled and changes frock clamp used during the front artificial tin scraping cream of weldering.
Background technology
For printed board assembly shop, when printed board BGA device needs manual tearing down and reconstructing due to reasons such as damages, due to
BGA device encapsulation and the specificity of pad, it is generally required to manual manufacture BGA changes weldering tool operates it by artificial tin scraping cream technique
After, then the welding of BGA is carried out with BGA reclamation work platform.In the technological operation manually scraping tin cream, need to keep printed board level
Fixing, BGA changes weldering tool and tightly fits with printed board face, and operator need to exert oneself downwards in BGA pad locations when scraping tin cream
Scrape tin cream, and then it is suitable to ensure that tin cream deposits the adhesion accurate, mutual of position when being attached on pad, storage.At present, plant operations people
Member changes welder when making to printed board BGA device, and the printed board owing to reprocessing all does not has technique edges, clamping difficulty.Operator
Printed board is directly placed on workbench and carries out scraping tin cream operate by other people are hand steered by member, this mode make printed board without
Method keeps level and firm, easily slides while making power, and then largely effects on and scrape the precision of tin cream and quality and cause
BGA device weld failure.It is too high to there is its clamped height in existing printed board clamping tooling, it has not been convenient to make downwards power, and workman behaviour
Make downwards power easily cause printed board and excessively bend and then destroy the situation of printed board or pad.So being badly in need of the convenient clamping of one
Various sizes printed board, it is few that its clamped height is only above operating board, and can ensure that there is support in the middle part of printed board, will not make print
Making sheet is bent downwardly too much frock to improve the quality of printed board BGA device welding and to ensure its welding efficiency.
Summary of the invention
It is an object of the invention to overcome in prior art, printed board clip position is too high, it has not been convenient to regular make downwards
The operation of power, easily causes the drawbacks such as printed board flexural deformation without supporting in the middle part of printed board, it is provided that a kind of for printed board clamping
BGA tear down and reconstruct mounted welder and using method, can be with fast clamp sizes printed board, frock height is relatively low, and middle part is permissible
Support the frock clamp of printed board.
The present invention for achieving the above object, be the technical scheme is that a kind of BGA for printed board clamping tears down and reconstruct weldering
Frock, it is characterised in that: include chassis, deflector apron, fixing terminal block block, end of stroke, fixing end guide rail, rail plate, dress
Clamp device I, screw rod frame, hands twist screw rod, clamping device II, printed board support means；
Described undersurface of bottom disc is rectangular-shaped, in being rectangular channel, two limits before and after bottom surface is respectively equipped with in the middle of rectangular bottom surface
Article one, baffle plate, in the inner face both sides that two baffle plates are corresponding, be respectively symmetrically fixes a fixing terminal block block, an end of stroke,
A deflector apron is fixed respectively, between every side shield and deflector apron before the fixing terminal block block and end of stroke of both sides
Respectively constitute a gathering sill；
Described fixing end guide rail is fixed on above two fixing terminal block blocks, and two clamping devices I are separately positioned on fixing end and lead
On rail, two clamping devices I guide joining of perforate I by the guide pad I being each provided with the fixing strip holding guide rail to be provided with
Close, make two clamping devices I horizontally moveable on fixing end guide rail, the adjustable interval between two clamping devices I；
The guide pad II that described rail plate two ends are fixed is correspondingly arranged in two gathering sills, and two clamping devices II set respectively
Put on rail plate, the strip guiding that two clamping devices II are provided with rail plate by the guide pad III being each provided with
The cooperation of perforate II, makes two clamping devices II horizontally moveable on rail plate, the spacing between two clamping devices II
Adjustable；
Standing screw frame on the end face of rail plate, is provided with hands on screw rod frame and twists screw rod, adjusts hands and twists screw rod, and slip is led
Rail is horizontally moveable on two baffle plates；
Two described printed board support meanss are arranged in the rectangular channel on chassis.
A kind of BGA for printed board clamping tears down and reconstruct the using method of mounted welder, it is characterised in that step is as follows:
The first step, rail plate is slid into the low order end of gathering sill, prepare clamping printed board；
Second step, the first method of clamping: according to printed board size, adjust two clamping devices I respectively on fixing end guide rail
Position and two clamping devices II position on rail plate,
The side of printed board is inserted the spring face of two clamping device I spring leafs I on fixing end guide rail and fixes end guide rail
Between face, the side of printed board is blocked by the spring face of spring leaf I, moves another to printed board of rail plate to printed board direction
Between spring face and the dynamic slide guide rail of the spring leaf II that two clamping devices II on mobile rail plate are inserted in side, bullet
The opposite side of printed board is blocked by the spring face of reed II, rotate tighten hands twist knurly screw I and hands twist knurly screw II will print
Making sheet clamps, and twists screw rod and is locked at by rail plate on a position on chassis by tightening the hands on screw rod frame simultaneously, prints
Plate is i.e. fastened on fixing end guide rail and rail plate, can not deviate from；
The second method of clamping: according to the position of the installing hole in printed board, adjusts two clamping devices I respectively and leads at fixing end
Position on rail and two clamping devices II position on rail plate, moves rail plate to print to fixing end guide rail direction
Four installing holes of making sheet are inserted on two clamping pillars I and two clamping pillars II respectively, rotate and tighten the stubborn rolling of two handss
Flower screw I and two handss twist knurly screw II by clamping device I and clamping device II locking, simultaneously by tightening on screw rod frame
Hands is twisted screw rod and is locked at by rail plate on a position on chassis, it is achieved the clamping to printed board, printed board is i.e. fastened to
On fixing end guide rail and rail plate, can not deviate from；
3rd step, two printed board support meanss are carried out height adjustment after be placed in the rectangular channel on chassis, two printed boards are propped up
Top cap above support arrangement is placed in below printed board the position not having components and parts, carries out two printed boards by adjusting two top caps
The height fine adjusting function of support means so that printed board support means supports printed board medium position just, tears down and reconstruct weldering print follow-up
Lower bending deformation will not occur because of the most firmly making in the middle part of printed board during bga chip in making sheet.
The invention has the beneficial effects as follows: the present invention has Stability Analysis of Structures simultaneously, chucking power is big, structure member is simple, processing
Conveniently, cost is relatively low, simple to operate, have two kinds of method of clamping, possess the most relatively low level consolidates clamping various sizes
Printed board function, in operator the most firmly scrape the operation of tin cream, can guarantee that there is support in the middle part of printed board so that print
Making sheet will not flexural deformation, and make power convenient, it is adaptable to press the special suitable environment in printed board face, human oriented design energetically
By force.Special-purpose printed board BGA device of the present invention scrapes tin cream operation when changing weldering, with strong points, facilitates durable, and parts more simplify,
Processing cost is low, is beneficial to batch production.The present invention improves workshop BGA components and parts weldering in printed board BGA device rework process
The work efficiency connect, it is ensured that BGA device reprocess progress.The present invention tears down and reconstruct weldering field at printed board BGA and can obtain extensively
Application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation on chassis of the present invention；
Fig. 3 is the schematic diagram that chassis of the present invention, deflector apron, fixing terminal block block and end of stroke are installed；
Fig. 4 is the structural representation that the present invention fixes end guide rail；
Fig. 5 is the structural representation of rail plate of the present invention；
Fig. 6 is clamping device I of the present invention and the decomposing schematic representation of fixing end guide rail；
Fig. 7 is the decomposing schematic representation of clamping device II of the present invention；
Fig. 8 is the schematic diagram that screw rod frame of the present invention and hands twist screw rod installation；
Fig. 9 is the structural representation that the present invention fixes terminal block block；
Figure 10 is the structural representation of end of stroke of the present invention；
Figure 11 is the structural representation of printed board support means of the present invention；
Figure 12 is the schematic diagram of the first method of clamping of the present invention；
Figure 13 is the schematic diagram of the second method of clamping of the present invention.
Detailed description of the invention
As shown in Figure 1 to 11, a kind of BGA for printed board clamping tears down and reconstruct mounted welder, including chassis 1, deflector apron
2, fixing terminal block block 3, end of stroke 4, fixing end guide rail 5, rail plate 6, clamping device I 7, screw rod frame 8, hands twist screw rod 9, dress
Clamp device II 10, printed board support means 11.
Clamping device I 7 includes clamping main body I 7-1, clamping pillar I 7-2, knurly screw I 7-3, spring leaf I 7-4.
Clamping main body I 7-1 is stepped, is provided with installation screw I 7-5, convex on the crowning of clamping device I 7 one end
Rise before face and be provided with groove, groove inner face is provided with reed screw 7-6, be arranged below one what clamping device I 7 other end sank face
Guide pad I 7-7, is provided with screw I 7-8 in guide pad I 7-7 center.
One end of spring leaf I 7-4 is arranged in the groove of crowning, by coordinating spring of screw and installation screw I 7-5
One end of sheet I 7-4 is fixed in the groove of crowning, and the spring face of the spring leaf I 7-4 other end is arranged on the lower section of crowning, dress
Folder pillar I 7-2 is screwed onto in installation screw I 7-5 of crowning, and hands is twisted knurly screw I 7-3 and is screwed onto below guide pad I 7-7
In screw I 7-8.
Clamping device I 7 is identical with clamping device II 10 structure.
Clamping device II 10 includes clamping main body II 10-1, clamping pillar II 10-2, knurly screw II 10-3, spring leaf II
10-4, clamping main body II 10-1 are stepped, are provided with installation screw II 10-5 on the crowning of clamping device II 10 one end,
It is provided with groove before crowning, groove inner face is provided with reed screw II 10-6, sink under face at clamping device II 10 other end
Face is provided with guide pad III 10-7, is provided with screw II 10-8 in guide pad III 10-7 center.
Printed board support means 11 includes top cap 11-1, screw rod 11-2, disc base 11-3, outside screw rod 11-2 top is provided with
Screw thread, top cap 11-1 is provided with female thread, and top cap 11-1 is threaded together by the external thread rotary of female thread with screw rod 11-2, by changing
Screw rod 11-2 is highly adjusted by the thread turns that mutarotation is twisted.
Bottom surface, chassis 1 is rectangular-shaped, in being rectangular channel 1-2 in the middle of rectangular bottom surface, on two limits before and after bottom surface respectively
It is provided with a baffle plate 1-1, the design of rectangular channel 1-2 so that frock entirety loss of weight, and the keeping flat of favourable frock.
Two inner face both sides corresponding for baffle plate 1-1, be respectively symmetrically fixes 3, end of a fixing terminal block block
Block 4, fixes a deflector apron 2 before the fixing terminal block block 3 and end of stroke 4 of every side respectively, every side shield 1-1 and
A gathering sill 1-21 is respectively constituted between deflector apron 2.
Fixing end guide rail 5 is fixed by screws in above two fixing terminal block blocks 3, by respective for two clamping devices I 7
The strip that guide pad I 7-7 being provided with is respectively placed on fixing end guide rail 5 guides in perforate I 5-1, twists knurly screw I with two handss
7-3 is screwed onto screw I 7-8 from the lower section of guide pad I 7-7 respectively, two clamping devices I 7 is separately fixed at fixing end and leads
On rail 5, adjust two handss and twist knurly screw I 7-3, make two clamping devices I 7 horizontally moveable on fixing end guide rail 5, two
Spacing between clamping device I 7 also adjustable.
Guide pad II 6-2 that rail plate 6 two ends are fixing is correspondingly arranged in two gathering sill 1-21, by two clampings
The strip that guide pad III 10-7 that device II 10 is each provided with is respectively placed on rail plate 6 guides in perforate II 6-1, with two
Hands is twisted knurly screw II 10-3 and is screwed onto screw II 10-8 from the lower section of guide pad III 10-7 respectively, by two clamping devices II
10 are separately fixed on rail plate 6, adjust two handss and twist knurly screw II 10-3, and two clamping devices II 10 are at rail plate
On 6 horizontally moveable, spacing also adjustable between two clamping devices II 10.
Spiral shell dress standing screw frame 8 on the end face of rail plate 6, the hands that is spirally connected on screw rod frame 8 is twisted screw rod 9, is adjusted hands
Twisting screw rod 9 makes rail plate 6 horizontally moveable on two baffle plate 1-1, and rail plate 6 is locked at a certain position on chassis 1
Put.
Two printed board support meanss 11 are arranged in the rectangular channel 1-2 on chassis 1.
A kind of BGA for printed board clamping tears down and reconstruct the using method of mounted welder, and as shown in Figure 12,13, step is as follows:
The first step, rail plate 6 is slid into the low order end of gathering sill 1-21, prepare clamping printed board.
Second step, the first method of clamping: according to printed board 12 size, adjust two clamping devices I 7 respectively at fixing end
Position on guide rail 5 and two clamping devices II 10 position on rail plate 6, inserts fixing end by the side of printed board 12
Between spring face and fixing 5, the guide rail of end of two clamping device I 7 spring leaf I 7-4 on guide rail 5, the spring of spring leaf I 7-4
The side of printed board is blocked by face, and the opposite side moving rail plate 6 to printed board 12 to printed board 12 direction inserts mobile sliding
Between spring face and the dynamic rail plate 6 of spring leaf II 10-4 of two clamping devices II 10 on dynamic guide rail 6, spring leaf II
The opposite side of printed board is blocked by the spring face of 10-4, rotates and tightens two handss and twist knurly screw I 7-3 and two handss twist annular knurl spiral shell
Printed board 12 is clamped by silk II 10-3, twists screw rod 9 rail plate 6 is locked at chassis 1 by tightening the hands on screw rod frame 8 simultaneously
A position on, printed board 12 is i.e. fastened on fixing end guide rail 5 and rail plate 6, can not deviate from.
The second method of clamping: according to the position of the installing hole 12-1 in printed board 12, adjusts two clamping devices I respectively
7 positions on fixing end guide rail 5 and two clamping devices II 10 position on rail plate 6, to fixing end guide rail 5 direction
Four installing hole 12-1 of mobile rail plate 6 to printed board 12 are inserted in two clamping pillar I 7-2 and two clamping pillars respectively
On II 10-2, rotate respectively and tighten two handss and twist knurly screw I 7-3 and two handss twist knurly screw II 10-3 by printed board 12
It is locked, twists screw rod 9 and rail plate 6 is locked on a position on chassis 1 by tightening the hands on screw rod frame 8 simultaneously, it is achieved
Clamping to printed board 12, printed board 12 is i.e. fastened on fixing end guide rail 5 and rail plate 6, can not deviate from.
3rd step, two printed board support meanss 11 are carried out height adjustment after be placed in the rectangular channel 1-2 on chassis 1, two
Top cap 9-1 above individual printed board support means 11 is placed in the position not having components and parts below printed board 12, by adjusting two
Top cap 9-1 carries out the height fine adjusting function of two printed board support meanss 11 so that printed board support means 11 supports printing just
Plate 12 medium position, will not be because of the most firmly making in the middle part of printed board when the follow-up bga chip torn down and reconstructed in weldering printed board
There is lower bending deformation.
Claims (3)
1. tear down and reconstruct mounted welder for the BGA of printed board clamping for one kind, it is characterised in that: include chassis (1), deflector apron (2), consolidate
Fixed end block (3), end of stroke (4), fixing end guide rail (5), rail plate (6), clamping device I (7), screw rod frame (8), hands are twisted
Screw rod (9), clamping device II (10), printed board support means (11)；
Described chassis (1) bottom surface is rectangular-shaped, in being rectangular channel (1-2) in the middle of rectangular bottom surface, on two limits before and after bottom surface
Being respectively equipped with a baffle plate (1-1), in the inner face both sides that two baffle plates (1-1) are corresponding, be respectively symmetrically fixes a fixing end
Block (3), an end of stroke (4), fix one before the fixing terminal block block (3) and end of stroke (4) of both sides respectively
Deflector apron (2), respectively constitutes a gathering sill (1-21) between every side shield (1-1) and deflector apron (2)；
Described fixing end guide rail (5) is fixed on above two fixing terminal block blocks (3), and two clamping devices I (7) are separately positioned on
On fixing end guide rail (5), two clamping devices I (7) are set on fixing end guide rail (5) by the guide pad I (7-7) being each provided with
Some strips guide the cooperation of perforate I (5-1), make two clamping devices I (7) upper horizontally moveable fixing end guide rail (5), and two
Adjustable interval between individual clamping device I (7)；
The guide pad II (6-2) that described rail plate (6) two ends are fixed is correspondingly arranged in two gathering sills (1-21), two dresses
Clamp device II (10) is separately positioned on rail plate (6), and two clamping devices II (10) are by the guide pad III being each provided with
(10-7) strip being provided with rail plate (6) guides coordinating of perforate II (6-1), makes two clamping devices II (10) slide
Dynamic guide rail (6) is upper horizontally moveable, the adjustable interval between two clamping devices II (10)；
Standing screw frame (8) on the end face of rail plate (6), are provided with hands on screw rod frame (8) and twist screw rod (9), adjust hands
Twisting screw rod (9), rail plate (6) is upper horizontally moveable two baffle plates (1-1)；
Two described printed board support meanss (11) are arranged in the rectangular channel (1-2) of chassis (1).
A kind of BGA for printed board clamping the most according to claim 1 tears down and reconstruct mounted welder, it is characterised in that: described dress
Clamp device I (7), clamping device II (10) structure are identical, and described clamping device I (7) includes clamping main body I (7-1), clamping pillar
I (7-2), knurly screw I (7-3), spring leaf I (7-4),
Described clamping main body I (7-1) is stepped, is provided with installation screw I (7-on the crowning of clamping device I (7) one end
5), before crowning, it is provided with groove, groove inner face is provided with reed screw (7-6), sink face at clamping device I (7) other end
A guide pad I (7-7) is arranged below, be provided with screw I (7-8) in guide pad I (7-7) center,
One end of described spring leaf I (7-4) is fixed in the groove of crowning, and the spring face of spring leaf I (7-4) other end is arranged on
The lower section of crowning, described clamping pillar I (7-2) is screwed onto in the installation screw I (7-5) of crowning, and described hands twists annular knurl spiral shell
Silk I (7-3) is screwed onto screw I (7-8) from guide pad I (7-7) lower section.
3. using the BGA for printed board clamping described in claim 1 to tear down and reconstruct a using method for mounted welder, its feature exists
In, step is as follows:
The first step, rail plate (6) is slid into the low order end of gathering sill (1-21), prepare clamping printed board；
Second step, the first method of clamping: according to printed board (12) size, adjust two clamping devices I (7) respectively at fixing end
Position on guide rail (5) and two clamping devices II (10) position on rail plate (6), inserts the side of printed board (12)
Enter between the spring face of two clamping devices I (7) spring leaf I (7-4) fixed on end guide rail (5) and fixing end guide rail (5) face,
The side of printed board is blocked by the spring face of spring leaf I (7-4), moves rail plate (6) to printed board (12) direction to printing
The opposite side of plate (12) inserts the spring of the spring leaf II (10-4) of two clamping devices II (10) on mobile rail plate (6)
Between face and dynamic rail plate (6) face, the opposite side of printed board is blocked by the spring face of spring leaf II (10-4), rotates and tightens hands
Twist knurly screw I (7-3) and hands is twisted knurly screw II (10-3) and printed board (12) clamped, simultaneously by tightening screw rod frame (8)
On hands twist screw rod (9) rail plate (6) be locked on a position on chassis (1), printed board (12) is i.e. fastened to solid
On fixed end guide rail (5) and rail plate (6), can not deviate from；
The second method of clamping: according to the position of the installing hole (12-1) in printed board (12), adjusts two clamping devices I respectively
(7) position on fixing end guide rail (5) and two clamping devices II (10) position on rail plate (6), to fixing end
Guide rail (5) direction is moved rail plate (6) to four installing holes (12-1) of printed board (12) and is inserted in two clamping pillars I respectively
(7-2), on He two clamping pillars II (10-2), rotate and tighten two handss and twist knurly screw I (7-3) and two handss twist annular knurl
Clamping device I (7) and clamping device II (10) are locked by screw II (10-3), simultaneously stubborn by tightening the hands on screw rod frame (8)
Rail plate (6) is locked on a position on chassis (1) by screw rod (9), it is achieved the clamping to printed board (12), printed board
(12) i.e. it is fastened on fixing end guide rail (5) and rail plate (6), can not deviate from；
3rd step, two printed board support meanss (11) are carried out height adjustment after be placed in the rectangular channel (1-2) of chassis (1),
The top cap (9-1) of two printed board support means (11) tops is placed in printed board (12) lower section does not has the position of components and parts, passes through
Adjust two top caps (9-1) and carry out the height fine adjusting function of two printed board support meanss (11) so that printed board support means (11)
Just printed board (12) medium position is supported, will not be because of using downwards when the follow-up bga chip torn down and reconstructed in weldering printed board
Power makes lower bending deformation in the middle part of printed board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593045.3A CN106077882A (en) | 2016-07-26 | 2016-07-26 | A kind of BGA for printed board clamping tears down and reconstruct mounted welder and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593045.3A CN106077882A (en) | 2016-07-26 | 2016-07-26 | A kind of BGA for printed board clamping tears down and reconstruct mounted welder and using method |
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| Publication Number | Publication Date |
|---|---|
| CN106077882A true CN106077882A (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610593045.3A Pending CN106077882A (en) | 2016-07-26 | 2016-07-26 | A kind of BGA for printed board clamping tears down and reconstruct mounted welder and using method |
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| CN (1) | CN106077882A (en) |
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| CN108495483A (en) * | 2018-03-26 | 2018-09-04 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system |
| CN109894711A (en) * | 2019-01-31 | 2019-06-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | PCBA components welding auxiliary holding device |
| CN113000977A (en) * | 2021-02-18 | 2021-06-22 | 河北经贸大学 | Clamping system |
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|---|---|---|---|---|
| CN108495483A (en) * | 2018-03-26 | 2018-09-04 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Sliding rail support holds formula pcb board reflow welding stove auxiliary transmission system |
| CN109894711A (en) * | 2019-01-31 | 2019-06-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | PCBA components welding auxiliary holding device |
| CN113000977A (en) * | 2021-02-18 | 2021-06-22 | 河北经贸大学 | Clamping system |
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