CN105235366B - The pcb board fixing device of stencil printer - Google Patents
The pcb board fixing device of stencil printer Download PDFInfo
- Publication number
- CN105235366B CN105235366B CN201510761263.9A CN201510761263A CN105235366B CN 105235366 B CN105235366 B CN 105235366B CN 201510761263 A CN201510761263 A CN 201510761263A CN 105235366 B CN105235366 B CN 105235366B
- Authority
- CN
- China
- Prior art keywords
- pcb board
- vacuum
- fixing device
- platform
- stencil printer
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000007639 printing Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 229910000737 Duralumin Inorganic materials 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 9
- 239000006071 cream Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Screen Printers (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention discloses a kind of pcb board fixing device of stencil printer, including：Support platform and the slide rail positioned at its both sides；Support platform includes vacuum platform and the supporting part on vacuum platform, and supporting part is the hollow cavity that upper end has opening, and multiple through holes that hollow cavity is fluidly connected to vacuum platform are provided with supporting part；Vacuum platform is connected with vavuum pump；The gripping body for gripping pcb board is provided with slide rail；Gripping body grips pcb board and is placed on the upper end of supporting part, and pcb board covers hollow cavity；Vacuum platform is vacuumized by vavuum pump and pcb board is absorbed and fixed on supporting part；For gripping body when gripping pcb board, the top surface of clamping part is not higher than the top surface of pcb board.According to the pcb board fixing device of the stencil printer of the present invention, by the clamping action of gripping body and vacuum platform to pcb board and suction-operated, it ensure that pcb board and steel mesh disposed thereon be smooth fits together, to ensure the paste solder printing effect of pcb board.
Description
Technical field
The invention belongs to SMT technical fields, specifically, are related to a kind of pcb board fixing device of stencil printer.
Background technology
Typically many electronic components, such as chip, electricity can be all configured on printed circuit board (PCB) (pcb board) in electronic product
Resistance, electric capacity and inductance etc., to form the circuit with specific function；Therefore, can be set on pcb board multiple above-mentioned for welding
The pad of electronic component, and in order to obtain preferable welding effect and improve welding efficiency, welding above-mentioned electronics member device
Before part, one layer of material that can aid in welding can be smeared on the pad of pcb board first, the auxiliary welding material typically selects
Use tin cream.
It is usually first to be made accordingly according to the position of the pad set on pcb board in print solder paste on pcb board
Template, the conventional material of the template is steel, is commonly called as steel mesh.It is provided with the steel mesh corresponding to the pad on pcb board
Hole, this some holes is used for tin cream being directed into corresponding pad on pcb board.During print solder paste, first, by PCB
Plate is fixed by contained side, and steel mesh is correspondingly positioned on the pcb board of tin cream to be printed, and the hole allowed on steel mesh is directed at PCB
Pad on plate；Then, tin cream is placed on steel mesh, and tin cream is scraped back and forth on steel mesh using scraper；Finally, tin cream
Through the hole on steel mesh and it can fall on pad in pcb board during scrape, it is achieved thereby that tin cream is on pcb board
Printing.
As shown in figure 1, the pcb board fixing device of existing stencil printer includes supporting table 101, positioned at 101 liang of supporting table
The guide rail 102 of side, the contained side 103 that is connected on guide rail 102 and can be slided on guide rail 102；Wherein, the contained side 103 grips
Pcb board 201 is simultaneously placed in supporting table 101, and the steel mesh 301 for print solder paste is arranged on the pcb board 201.It is but existing
The pcb board fixing device of stencil printer in technology usually there will be following drawback：For fixing the contained side of pcb board 201
103, it will usually so that producing 0.1mm or so gap between pcb board 201 and steel mesh 301, and cause pcb board 201 and steel mesh
301 can not be brought into close contact, particularly the marginal portion of the both sides of close guide rail 102 of pcb board 201, can cause paste solder printing thickness
Phenomena such as excessive and shaping is unstable；Meanwhile in mobile phone productses after the removal technique of pcb board 201 edges of boards, stamp mouth and dowel etc.
It can be caused to cross stove deformation to arch upward seriously, it is bad so as to cause to print, influence product quality.
The content of the invention
To solve the above-mentioned problems of the prior art, the invention provides a kind of pcb board of stencil printer to fix dress
Put, the top surface of the clamping part in the pcb board fixing device is not higher than the top surface of pcb board, is put down in combination with vacuum in support platform
Suction-operated of the platform to pcb board, it ensure that pcb board can be bonded closely with steel mesh, so as to ensure that good paste solder printing effect
Fruit.
In order to reach foregoing invention purpose, present invention employs following technical scheme：
A kind of pcb board fixing device of stencil printer, including：Support platform, the support platform include vacuum platform
And the supporting part on the vacuum platform is arranged at, the supporting part has the hollow cavity of opening, the support for upper end
Multiple through holes that the hollow cavity is fluidly connected to the vacuum platform are provided with portion；The vacuum platform is connected with very
Empty pump；Slide rail positioned at the support platform both sides, the gripping body for gripping pcb board is provided with the slide rail, it is described
Gripping body includes being connected on the slide rail and the connecting rod that can be moved along the slide rail and the clamping being connected with the connecting rod
Portion；The gripping body grips the pcb board and the pcb board is positioned over to the upper end of the supporting part, and the pcb board covers
The hollow cavity；The vacuum platform is vacuumized by the vavuum pump pcb board being absorbed and fixed at the supporting part
On；For the gripping body when gripping the pcb board, the top surface of the clamping part is not higher than the top surface of the pcb board.
Further, the pcb board fixing device of the stencil printer also includes：Vacuum switching device, the vacuum are cut
Changing device is arranged between the vavuum pump and the vacuum platform；The vacuum switching device includes switching body and is arranged at
The first aspirating hole and the second aspirating hole on the switching body, first aspirating hole is connected with the vavuum pump, described
Second aspirating hole is connected with the vacuum platform.
Further, the 3rd aspirating hole is additionally provided with the switching body, the 3rd aspirating hole is connected with tracheae, uses
Cleaned in the steel mesh to printing pcb board；Wherein, second aspirating hole alternatively opens with the 3rd aspirating hole.
Further, the pcb board fixing device of the stencil printer also includes the regulation spiral shell being arranged on the slide rail
Silk；The set screw is used for the height for adjusting the clamping part, so that the top surface of the clamping part is not higher than the pcb board
Top surface.
Further, the set screw is machine-processed rice screw.
Further, the vacuum platform also includes the port lid corresponding with some through holes, and the port lid is used to control
The pcb board is absorbed and fixed at the degree of absorption on the supporting part by system.
Further, the support platform also includes inside the hollow cavity and is arranged on the vacuum platform
On some support columns.
Further, the upper end flush of the top surface of the support column and the supporting part；The support column is used for putting
The pcb board in the upper end of the supporting part is put to be supported.
Further, the pcb board fixing device of the stencil printer also includes：Vacuum door storehouse, the Vacuum door storehouse are set
The vacuum platform is placed between the vacuum switching device；The Vacuum door storehouse includes door storehouse body and is arranged at the door
On the body of storehouse first opening and second opening, it is described first opening is connected with the vacuum platform, it is described second opening and
Second aspirating hole is connected.
Further, the material of the clamping part is duralumin.
It is parallel that pcb board is located in two by the present invention by way of controlling the top surface of clamping part to be no more than the top surface of pcb board
Between slide rail, it ensure that pcb board can move on slide rail；The pcb board is positioned over to the top of support platform simultaneously, and
The upper end that the pcb board is absorbed and fixed to supporting part is vacuumized by vavuum pump using vacuum platform, so as to ensure that pcb board with
The steel mesh being positioned above can be bonded closely, then ensure that the printing when carrying out paste solder printing using the steel mesh is imitated
Fruit.
Brief description of the drawings
The following description carried out in conjunction with the accompanying drawings, above and other aspect, feature and the advantage of embodiments of the invention
It will become clearer, in accompanying drawing：
Fig. 1 is the structural representation of the pcb board fixing device of stencil printer of the prior art；
Fig. 2 is the structural representation of the pcb board fixing device of stencil printer according to an embodiment of the invention；
Fig. 3 is the structural representation of support platform according to an embodiment of the invention；
Fig. 4 is the structural representation of vacuum platform according to an embodiment of the invention；
Fig. 5 is the structural representation of clamping part clamping pcb board according to an embodiment of the invention；
Fig. 6 is the structural representation of vacuum switching device according to an embodiment of the invention；
Fig. 7 is the structural representation in Vacuum door storehouse according to an embodiment of the invention.
Embodiment
Hereinafter, with reference to the accompanying drawings to embodiments of the invention are described in detail.However, it is possible to come in many different forms real
Apply the present invention, and the specific embodiment of the invention that should not be construed as limited to illustrate here.Conversely, there is provided these implementations
Example is in order to explain the principle and its practical application of the present invention, so that others skilled in the art are it will be appreciated that the present invention
Various embodiments and be suitable for the various modifications of specific intended application.In the accompanying drawings, for the sake of clarity, element can be exaggerated
Shape and size, and identical label will be used to indicate same or analogous element all the time.
It will be appreciated that although can be used term " first ", " second " etc. to describe various elements herein, but these
Element should not be limited by these terms.These terms are only used for making a distinction an element with another element.
Reference picture 2 is to Fig. 7, and the embodiments of the invention provide a kind of pcb board fixing device of stencil printer.Such as Fig. 2 institutes
Show, the fixing device includes：Support platform 1, the slide rail 2 positioned at the both sides of support platform 1, it is arranged on the slide rail 2
For the vavuum pump 4 for gripping the gripping body 3 of pcb board 5 and being connected with the bottom of the support platform 1.Wherein, grip
Mechanism 3 is arranged on slide rail 2 and can moved on slide rail 2, and pcb board 5 is pressed from both sides by the gripping body 3 positioned at the both sides of support platform 1
Hold and be fixed in support platform 1.Slide rail 2 drives gripping body 3 to move pcb board 5 and be positioned over the top of support platform 1, opens
Dynamic vavuum pump 4, the vavuum pump 4 can be vacuumized to support platform 1, and pcb board 5 is firmly absorbed and fixed at into the branch
The top of platform 1 is supportted, so that the top surface of the pcb board 5 keeps smooth, then by being arranged at the steel mesh of the top of the pcb board 5
6 can carry out the printing of tin cream to pcb board 5, to ensure good paste solder printing effect.
Specifically, shown in reference picture 3 and Fig. 4, support platform 1 includes vacuum platform 11 and positioned at the vacuum platform 11
On supporting part 12, supporting part 12 encloses the hollow cavity 13 to form a upper end open.If the inside of hollow cavity 13 has
Dry through hole 14, these through holes 14 ensure that the circulation that gas can be carried out between the hollow cavity 13 and vacuum platform 11.Vacuum is put down
The side of platform 11 has connector 111, and vacuum platform 11 is connected by connector 111 with vavuum pump 4.
Preferably, as shown in figure 4, above-mentioned some through holes 14 are the hole not of uniform size of array arrangement.Meanwhile for convenience
The absorption affinity for being supplied to pcb board 5 is effectively controlled, vacuum platform 11 also includes corresponding with some through holes 14
Port lid 15, port lid 15 can be covered on through hole 14 corresponding thereto, can to by vavuum pump 4 send via vacuum platform 11
The pull of vacuum reached in hollow cavity 13 is adjusted, that is, the upper end of supporting part 12 is absorbed and fixed to pcb board 5
Degree of absorption is controlled, so that the surface of the pcb board 5 keeps smooth.
Shown in reference picture 3, support platform 1 also includes inside the hollow cavity 13 and is arranged on vacuum platform 11
On some support columns 16.In the present embodiment, the upper end flush of the top surface of four support columns 16 and supporting part 12, with
Support is played a part of to the pcb board 5 being placed on supporting part 12.
Reference picture 2, gripping body 3 include being connected to the connecting rod 31 that can be moved on slide rail 2 and on slide rail 2 and connected
It is connected to the clamping part 32 of the free end of connecting rod 31.In the present embodiment, slide rail 2 has two, is separately positioned on the two of support platform 1
Side, in this way, pcb board 5 can be clamped and be placed on the upper end of supporting part 12 by two clamping parts 32.It is worth explanation
It is that shown in reference picture 5, for clamping part 32 when clamping pcb board 5, the top surface of the clamping part 32 is not higher than the top surface of the pcb board 5,
Preferably, the top surface flush of its top surface and pcb board 5, in this way, when steel mesh 6 is placed on 5 top of pcb board, you can ensure steel mesh
6 are bonded with the surfacing of pcb board 5, and gap occurs in the edge for especially preventing pcb board 5 to be bonded with steel mesh 6, so as to cause
The blocked up bad phenomenon of print solder paste.
In order to facilitate operation, and for improve the pcb board fixing device to the purpose of the applicability of different pcb boards 5, institute
State the set screw (not shown) that the pcb board fixing device of stencil printer also includes being arranged on the slide rail 2；It is described
Set screw is used for the height for adjusting clamping part 32, for different pcb boards 5, by the height for adjusting clamping part 32, it is possible to achieve
The top surface of the clamping part 32 is not higher than the top surface of the pcb board 5.In the present embodiment, set screw is machine-processed rice screw, when
So, the present invention is not restricted to this, and other play the mechanism of the height of regulation and control clamping part 32.
Preferably, the material of clamping part 32 is duralumin.
In this way, clamping part 32 plays position-limiting action in the transmitting procedure of pcb board 5, so as to prevent being sent out in transmitting procedure
The unexpected situation of the raw clamp of pcb board 5.
Preferably, as shown in figure 1, the pcb board fixing device of the stencil printer of the present embodiment also includes being connected in turn
Vacuum switching device 7 and Vacuum door storehouse 8 between vavuum pump 4 and support platform 1.Specifically, respectively refer to shown in Fig. 6 and Fig. 7,
In the present embodiment, as shown in fig. 6, vacuum switching device 7 is the part of a threeway, it includes switching body 71 and is arranged at
The first aspirating hole 72, the second aspirating hole 73 and the 3rd aspirating hole 74 on the switching body 71.As shown in fig. 7, Vacuum door storehouse 8
Including door storehouse body 81 and the first opening 82 being arranged on door storehouse body 81 and the second opening 83.Wherein, the first pumping
Hole 72 is connected with vavuum pump 4, and the second aspirating hole 73 is connected with the second opening 83, and the first opening 82 is directly communicated to vacuum and put down
Platform 11, and the 3rd aspirating hole 74 connects tracheae (not shown) and steel mesh 6 is cleaned, herein to the specific clear of steel mesh 6
Wash step to repeat no more, with reference to prior art.What deserves to be explained is in the vacuum switching device 7 of the threeway, second
Aspirating hole 73 is selected one with the 3rd aspirating hole 74 and connected；That is, when needing to vacuumize hollow cavity 13, second takes out
Stomata 73 is in open mode, while the 3rd aspirating hole 74 is closed, so as to ensure to take out very through what vavuum pump 4 was carried out
Do-nothing operation is fully used as the vacuum suction carried out via vacuum platform 11 and hollow cavity 13 to pcb board 5；And when needs are to warp
When crossing the steel mesh after print solder paste 6 and being cleaned, then the 3rd aspirating hole 74 is connected, and the second aspirating hole 73 is closed.
Wherein, the first opening 82 is directly fixedly connected at connector 111, so as to which vacuumizing of ensure that vavuum pump 4 carries out can be through
Transmitted by vacuum switching device 7, Vacuum door storehouse 8 to vacuum platform 11, then hollow cavity 13 take out very by through hole 14
It is empty.
To ensure air-tightness when connecting between above-mentioned each part, between above-mentioned vavuum pump 4 and vacuum switching device 7, with
And the connection between vacuum switching device 7 and Vacuum door storehouse 8 is connected by tracheae (not shown) to complete.
In the pcb board fixing device of the stencil printer in using the present embodiment, slide rail 3 drives and is clamped with pcb board 5
Gripping body 3 is moved to the top of support platform 1, and pcb board 5 is placed on to the opening of hollow cavity 13, supporting part 12 it is upper
End and four support columns 16 are supported to pcb board 5 and ensure that pcb board 5 blocks the upper end open of hollow cavity 13, so that
The hollow cavity 13 is internally formed a sealing space.Then open vavuum pump 4, via vacuum switching device 7, Vacuum door storehouse 8 with
And vacuum platform 11 vacuumizes to hollow cavity 13, the upper end of supporting part 12 is fixed on so as to adsorb pcb board 5, and keep
The upper surface of pcb board 5 is smooth.After treating paste solder printing, vavuum pump 4, suction-operated of the hollow cavity 13 to pcb board 5 are closed
Disappear, slide rail 3 is to drive the gripping body 6 for being clamped with the pcb board 5 for completing paste solder printing to be moved to next workshop section；And so on,
Complete the paste solder printing of pcb board 5.
According to clamping action of the pcb board fixing device of the stencil printer of the present invention by gripping body 3 to pcb board 5
And hollow cavity 13 is acted on the vacuum suction of pcb board 5, ensure that the surfacing of 5 tin cream to be printed of pcb board, and can
With the steel mesh 6 for print solder paste on pcb board 5 is smooth fits together, so as to ensure that the process in print solder paste
In, be not in print solder paste the bad phenomenon such as in uneven thickness, substantially increase the printing effect of product.
Although the present invention has shown and described with reference to specific embodiment, it should be appreciated by those skilled in the art that：
In the case where not departing from the spirit and scope of the present invention limited by claim and its equivalent, can carry out herein form and
Various change in details.
Claims (8)
- A kind of 1. pcb board fixing device of stencil printer, it is characterised in that including：Support platform, the support platform include vacuum platform and the supporting part being arranged on the vacuum platform, the branch Support part is that upper end has the hollow cavity of opening, be provided with the supporting part hollow cavity is fluidly connected to it is described true Multiple through holes of hollow panel；The vacuum platform is connected with vavuum pump by vacuum switching device；The vacuum switching device bag Switching body and the first aspirating hole, the second aspirating hole and the 3rd aspirating hole that are arranged on the switching body are included, wherein, it is described First aspirating hole is connected with the vavuum pump, and second aspirating hole is connected with the vacuum platform, the 3rd pumping Hole is connected with tracheae, for being cleaned to the steel mesh for printing pcb board；Wherein, second aspirating hole and the described 3rd pumping Hole alternatively opens；Slide rail positioned at the support platform both sides, the gripping body for gripping pcb board, the folder are provided with the slide rail Mechanism is taken to include being connected on the slide rail and the connecting rod that can be moved along the slide rail and the clamping part being connected with the connecting rod；The gripping body grips the pcb board and the pcb board is positioned over to the upper end of the supporting part, the pcb board lid Close the hollow cavity；The vacuum platform is vacuumized by the vavuum pump pcb board being absorbed and fixed at the support In portion；For the gripping body when gripping the pcb board, the top surface of the clamping part is not higher than the top surface of the pcb board.
- 2. the pcb board fixing device of stencil printer according to claim 1, it is characterised in that the stencil printer Pcb board fixing device also include being arranged on set screw on the slide rail；The set screw is used to adjust the clamping The height in portion, so that the top surface of the clamping part is not higher than the top surface of the pcb board.
- 3. the pcb board fixing device of stencil printer according to claim 2, it is characterised in that the set screw is Machine-processed rice screw.
- 4. the pcb board fixing device of stencil printer according to claim 2, it is characterised in that the vacuum platform is also Including the port lid corresponding with the through hole, the port lid is used to control is absorbed and fixed at the supporting part by the pcb board Degree of absorption.
- 5. the pcb board fixing device of stencil printer according to claim 4, it is characterised in that the support platform is also Including inside the hollow cavity and being arranged on some support columns on the vacuum platform.
- 6. the pcb board fixing device of stencil printer according to claim 5, it is characterised in that the top of the support column Face and the upper end flush of the supporting part；The support column is used for the pcb board for the upper end for being placed on the supporting part It is supported.
- 7. the pcb board fixing device of stencil printer according to claim 1, it is characterised in that the stencil printer Pcb board fixing device also include：Vacuum door storehouse, the Vacuum door storehouse are arranged between the vacuum platform and the vacuum switching device；The Vacuum door The first opening and the second opening that storehouse includes door storehouse body and is arranged on the body of the door storehouse, first opening with it is described true Hollow panel is connected, and second opening is connected with second aspirating hole.
- 8. the pcb board fixing device of stencil printer according to claim 1, it is characterised in that the material of the clamping part Expect for duralumin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761263.9A CN105235366B (en) | 2015-11-09 | 2015-11-09 | The pcb board fixing device of stencil printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761263.9A CN105235366B (en) | 2015-11-09 | 2015-11-09 | The pcb board fixing device of stencil printer |
Publications (2)
| Publication Number | Publication Date |
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| CN105235366A CN105235366A (en) | 2016-01-13 |
| CN105235366B true CN105235366B (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510761263.9A Active CN105235366B (en) | 2015-11-09 | 2015-11-09 | The pcb board fixing device of stencil printer |
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| CN (1) | CN105235366B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231806A (en) * | 2016-08-10 | 2016-12-14 | 上海无线电设备研究所 | Fixing, the stripper apparatus of microwave circuit boards and method for screening solder paste |
| CN107135610A (en) * | 2017-07-04 | 2017-09-05 | 东莞市凯格精密机械有限公司 | A kind of printed circuit board steel mesh adsorbent equipment |
| CN111017551B (en) * | 2019-12-31 | 2025-07-08 | 江西鑫金晖智能科技有限公司 | Application of PCB clamping device in PCB printing machine |
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| CN1705089A (en) * | 2004-05-26 | 2005-12-07 | 华为技术有限公司 | Method for back-repairing pin packaging free device |
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| CN105235366A (en) | 2016-01-13 |
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