CN206042556U - Fixture for tin spraying of circuit board - Google Patents
Fixture for tin spraying of circuit board Download PDFInfo
- Publication number
- CN206042556U CN206042556U CN201620874942.7U CN201620874942U CN206042556U CN 206042556 U CN206042556 U CN 206042556U CN 201620874942 U CN201620874942 U CN 201620874942U CN 206042556 U CN206042556 U CN 206042556U
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- CN
- China
- Prior art keywords
- groove
- circuit board
- draw
- clip
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a fixture for tin spraying of circuit board, including rectangular frame, the hole for hoist that is used for the lift, last draw -in groove and lower draw -in groove, the hole for hoist is seted up a side of frame, go up the draw -in groove with the draw -in groove parallel is equipped with down the side setting of hole for hoist, go up the draw -in groove near being equipped with the side of hole for hoist, go up the draw -in groove with the notch of draw -in groove sets up relatively down for spacing circuit board, go up the draw -in groove with at least one can be dismantled in the draw -in groove down. Fixture for tin spraying of circuit board can clamp at last draw -in groove under and between the draw -in groove the rigid circuit board that thickness is thin is fixed, when carrying out hot air solder leveling technology, has replaced the directness with the stiff and straight mode that clamps that connects of circuit, and the circuit board has obtained the support of frame, and bending strength has obtained the promotion, can bear blowing of wind -force in hot -blast leveling process, avoids being blown down, has satisfied the operation requirement, has improved bending strength when not changing other manufacture equipments.
Description
Technical field
This utility model is related to circuit board manufacture field, more particularly to a kind of tin spraying clip for circuit board.
Background technology
Circuit board is the circuit and pad required for being shifted etching and retained using optical figuring by copper-clad base plate, and
Welding resisting layer coating and text printout is completed, exposes and mark naked copper area to be welded, as copper can occur oxidation in atmosphere, affected
The welding of parts, therefore also need to adopt hot air leveling technology, tin layers or slicker solder layer will be sprayed on the dew copper pad of local.
Spray stannum technical process be：Tin bar is placed on into heating fusing in stannum stove；Circuit board one end to be processed hangs over
In hanging hole, the distance of the U-shaped guide rail in both sides 1 is adjusted, as shown in figure 1, circuit board to be processed is embedded in U-shaped guide rail 1；Hook connects
Decline with circuit board together and be immersed in 2～3 seconds in high temperature stannum stove, make liquid tin to be sticked at the dew copper of local；After the completion of will be to be processed
Rise common with hook of circuit board reset, in uphill process, compressed air by air knife sealing before and after circuit board, to circuit board
The stannum of upper ot-yet-hardened carries out dispelling leveling, referred to as " hot air leveling "；Circuit board cooling cleaning is removed finally.
When hot air leveling is carried out, stronger air-flow can produce huge stamping press to circuit board, therefore circuit board needs tool
Standby stronger bending strength, usual thickness can meet the processing intensity of hot air leveling substantially in the circuit board of 1mm and the above；But
It is the product for relatively thin circuit board, especially below 0.6mm, it is easy to blown down deformation or even fractureed, circuit board is heated
Soften in case of bending, the in uneven thickness of tin layers can be made, affect the quality of processing.
Therefore, how to design a kind of relatively thin circuit board of guarantee and ensure what is do not occured bending and deformation during hot air leveling
Instrument, is current those skilled in the art's technical issues that need to address.
Utility model content
This utility model provides a kind of tin spraying clip for circuit board, to solve relatively thin circuit board in hot air leveling process
In the problem that occurs bending and deformation.
In order to solve above-mentioned technical problem, the technical solution of the utility model is：
A kind of tin spraying clip for circuit board, including rectangular frame, hole for hoist, upper draw-in groove and lower bayonet slot, the hole for hoist is opened up
In a side of the framework, the upper draw-in groove and the lower bayonet slot be arranged in parallel, and parallel described are provided with the hole for hoist
Side arrange, groove of the upper draw-in groove near the side for being provided with the hole for hoist, the upper draw-in groove and the lower bayonet slot
Mouthful it is oppositely arranged, in the upper draw-in groove and the lower bayonet slot, at least one can dismantle, and the upper draw-in groove is included for forming card
First clamp and the second clamp of groove shape, and it is flexibly connected the connector of first clamp and second clamp, institute
Stating connector includes the multiple guide pillars being arranged on second clamp and is arranged on first clamp and the guide pillar
The slotted hole of cooperation, the slotted hole are obliquely installed.
Preferably, the cell wall of the upper draw-in groove and the lower bayonet slot is zigzag fashion.
Preferably, there is 20 °～40 ° of angle with horizontal plane in the slotted hole.
Preferably, first clamp is integrally formed with the side for being provided with the hole for hoist.
Preferably, second clamp is provided with handle.
Preferably, the two ends of the lower bayonet slot open up U-type groove respectively.
Preferably, two sides vertical with the side for being provided with the hole for hoist are respectively equipped with and the U-type groove
The taxiway matched somebody with somebody, the lower bayonet slot can slide along side.
Preferably, relative lock screw on the two side of the U-type groove, is respectively equipped with, for fixing the lower card
Groove.
Preferably, the tin spraying clip for circuit board is made using titanium alloy material.
Compared with prior art, this utility model has advantages below：The tin spraying clip for circuit board, can by thickness compared with
Thin hard circuit board is fixed and is installed between draw-in groove and lower bayonet slot, when tin spray process is carried out, by the institute of clamp circuit board
State during tin spraying clip for circuit board is placed on the U-shaped guide rail 1 of both sides and slide up and down, instead of the side of circuit board direct clamp directly
Formula, circuit board have obtained the support of framework, and bending strength is improved, and can bear blowing for wind-force during hot air leveling
It is dynamic, it is to avoid to be blown down, meet use requirement, improve bending strength while other manufacturing equipments are not changed.
Description of the drawings
Fig. 1 is the structural representation of the tin spraying fixture adopted in prior art；
Fig. 2 is the front view of the tin spraying clip for circuit board of one specific embodiment of this utility model；
Fig. 3 is the rearview of the tin spraying clip for circuit board of one specific embodiment of this utility model；
Fig. 4 is the structural representation of the lower bayonet slot of the tin spraying clip for circuit board of one specific embodiment of this utility model.
Shown in Fig. 1：1-U type guide rails；
Shown in Fig. 2～4：1- frameworks, 11- taxiways, 2- holes for hoist, 3- lower bayonet slots, 31-U type grooves, 32- lock screws,
The first clamps of 41-, the second clamps of 42-, 43- guide pillars, 44- slotted holes, 45- handles.
Specific embodiment
This utility model provides a kind of tin spraying clip for circuit board, improves circuit in the case where other equipment is not changed
The bending strength of plate, ensures that in the hot air leveling stage circuit board of thickness of thin will not be blown down.
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing and
Specific embodiment is described in detail there is provided tin spraying clip for circuit board to this utility model.
Fig. 2 and Fig. 3 is referred to, a kind of tin spraying clip for circuit board, including the rectangular frame 1 being vertically arranged, for lifting
Hole for hoist 2, upper draw-in groove and lower bayonet slot 3, when in use, long side is vertically arranged the framework 1, and minor face is horizontally disposed with, the lifting
Hole 2 is opened on the horizontal side at the top of the framework 1, for installing lifting device so as to the tin spraying clip for circuit board is carried
Rise, the horizontal side of parallel with the lower bayonet slot 3 framework of the upper draw-in groove 1 is arranged, and the upper draw-in groove is near the lifting
The horizontal side that hole 2 is located, the notch of the upper draw-in groove and the lower bayonet slot 3 are oppositely arranged for limit circuit plate, it is described on
The cell wall of draw-in groove and the lower bayonet slot 3 is zigzag fashion, when circuit board is put between the upper draw-in groove and the lower bayonet slot 3, institute
The difference in height stated between draw-in groove and the lower bayonet slot 3 is highly identical with circuit board, the draw-in groove that makes circuit board spacing on described
Between the lower bayonet slot 3, limiting circuit plate is moved up and down, while the upper draw-in groove is made with the draw-in groove shape of the lower bayonet slot 3
Circuit board cannot move perpendicular to circuit board surface, the cell wall of zigzag fashion reduce the upper draw-in groove and circuit board respectively with
And the contact area of the lower bayonet slot 3 and circuit board, reduce the damage to circuit board.The upper draw-in groove is included for forming draw-in groove
First clamp 41 and the second clamp 42 of shape, and it is flexibly connected the connection of first clamp 41 and second clamp 42
Part, the side that first clamp 41 is located with the hole for hoist 2 are integrally formed, thus the upper draw-in groove be fixedly installed on it is described
On framework 1, the connector includes four guide pillars 43 being arranged on second clamp 42 and is arranged on first card
The slotted hole 44 coordinated with the guide pillar 43 on plate 41, the slotted hole 44 are obliquely installed, and the angle with horizontal plane is 20 °, institute
State the second clamp 42 and be provided with handle 45, stirring the handle 45 can be such that the guide pillar 43 moves along the slotted hole 44,
So that second clamp 42 is formed with first clamp 41 misplacing.The lower bayonet slot 3 can be torn open independently of the framework 1
Unload, dismantle the lower bayonet slot 3 when circuit board is placed and taken out and be easy to operation.
Fig. 4 is referred to, the two ends of the lower bayonet slot 3 open up U-type groove 31 respectively, and two vertical sides of the framework 1 are provided with
The taxiway 11 matched with the U-type groove 31, the lower bayonet slot 3 are fastened on the taxiway 11 respectively by the U-type groove 31
It is upper to realize the relative movement on the framework 1, to adjust relative position, for installing various sizes of circuit board.It is described U-shaped
Relative lock screw 32 is respectively equipped with the two side of groove 31, and the lock screw 32 exerts a force in both sides, by the lower bayonet slot 3
It is locked on the framework 1.
During spray stannum, the tin spraying clip for circuit board can bear very high temperature, in order to ensure the framework 1, described
The enough intensity of upper draw-in groove and the lower bayonet slot 3, therefore the framework 1, the upper draw-in groove and the lower bayonet slot 3 are by titanium alloy
Material is made, and can bear the condition of high temperature.
Concrete operations mode of the present utility model is as follows：When placing circuit board, the handle 45, first clamp is lifted
41 and second clamp 42 form dislocation, the upper draw-in groove is opened, and circuit board is arranged in the draw-in groove of opening, pushes the handss
Handle 45, first clamp 41 and second clamp 42 playback form draw-in groove, and circuit board is spacing, while the adjustment lower card
The height of groove 3, circuit board is simultaneously spacing in the lower bayonet slot 3, locked by the lock screw 32, by the lower bayonet slot
3 are fixed on the framework 1, and circuit board is spacing between draw-in groove and the lower bayonet slot 3 and fixed on described.In spray stannum processing
When, the tin spraying clip for circuit board of clamp circuit board is placed in U-shaped guide rail 1 and is slided up and down, immerse tin liquor and heat respectively
Wind is flattened, and the tin spraying clip for circuit board plays a part of to improve intensity to circuit board, therefore can be on the basis of existing equipment
Realize the processing to ultrathin circuit board.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use that this practicality is new
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice, can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (9)
1. a kind of tin spraying clip for circuit board, it is characterised in that including rectangular frame, hole for hoist, upper draw-in groove and lower bayonet slot, described to hang
Dress hole is opened in a side of the framework, and the upper draw-in groove and the lower bayonet slot be arranged in parallel, and parallel described is provided with institute
The side for stating hole for hoist is arranged, the upper draw-in groove near the side for being provided with the hole for hoist, the upper draw-in groove and it is described under
The notch of draw-in groove is oppositely arranged, and in the upper draw-in groove and the lower bayonet slot, at least one can dismantle, and the upper draw-in groove includes using
In the first clamp and the second clamp that form draw-in groove shape, and the company for being flexibly connected first clamp and second clamp
Fitting, the connector include the multiple guide pillars being arranged on second clamp and are arranged on first clamp and institute
The slotted hole of guide pillar cooperation is stated, the slotted hole is obliquely installed.
2. tin spraying clip for circuit board according to claim 1, it is characterised in that the groove of the upper draw-in groove and the lower bayonet slot
Wall is zigzag fashion.
3. tin spraying clip for circuit board according to claim 1, it is characterised in that the slotted hole has 20 ° with horizontal plane
～40 ° of angle.
4. tin spraying clip for circuit board according to claim 1, it is characterised in that first clamp is provided with described with described
The side of hole for hoist is integrally formed.
5. tin spraying clip for circuit board according to claim 1, it is characterised in that second clamp is provided with handle.
6. tin spraying clip for circuit board according to claim 1, it is characterised in that the two ends of the lower bayonet slot open up U respectively
Type groove.
7. tin spraying clip for circuit board according to claim 6, it is characterised in that with the side for being provided with the hole for hoist
Two vertical sides are respectively equipped with the taxiway matched with the U-type groove.
8. tin spraying clip for circuit board according to claim 6, it is characterised in that set on two cell walls of the U-type groove respectively
There is relative lock screw.
9. tin spraying clip for circuit board according to claim 1, it is characterised in that the tin spraying clip for circuit board is closed using titanium
Golden material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874942.7U CN206042556U (en) | 2016-08-12 | 2016-08-12 | Fixture for tin spraying of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874942.7U CN206042556U (en) | 2016-08-12 | 2016-08-12 | Fixture for tin spraying of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206042556U true CN206042556U (en) | 2017-03-22 |
Family
ID=58309290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620874942.7U Expired - Fee Related CN206042556U (en) | 2016-08-12 | 2016-08-12 | Fixture for tin spraying of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206042556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114051329A (en) * | 2021-11-15 | 2022-02-15 | 中国北方车辆研究所 | Circuit board fixing device |
-
2016
- 2016-08-12 CN CN201620874942.7U patent/CN206042556U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114051329A (en) * | 2021-11-15 | 2022-02-15 | 中国北方车辆研究所 | Circuit board fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20200812 |