CN219660033U - Clamp for printed circuit board - Google Patents
Clamp for printed circuit board Download PDFInfo
- Publication number
- CN219660033U CN219660033U CN202320354218.1U CN202320354218U CN219660033U CN 219660033 U CN219660033 U CN 219660033U CN 202320354218 U CN202320354218 U CN 202320354218U CN 219660033 U CN219660033 U CN 219660033U
- Authority
- CN
- China
- Prior art keywords
- clamping
- circuit board
- printed circuit
- clamp
- cross beam
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 241001391944 Commicarpus scandens Species 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000000034 method Methods 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
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Manufacturing Of Printed Wiring (AREA)
Abstract
The utility model relates to the field of printed circuit board production and manufacturing, and discloses a clamp for a printed circuit board, which comprises a frame and two clamping mechanisms; the two clamping mechanisms are sequentially arranged along the vertical direction, the clamping mechanism positioned above is fixedly connected with the frame, the clamping mechanism positioned below is in sliding connection with the frame in the vertical direction, and the two clamping mechanisms are used for clamping the printed circuit board; the clamping mechanism comprises a cross beam, a plurality of elastic pieces and a plurality of clamping pieces, wherein the elastic pieces are arranged on the cross beam, the clamping pieces are rotationally connected with the cross beam, the cross beam is connected with the frame, the cross beam is provided with an abutting surface, the elastic pieces are abutted to the corresponding clamping pieces, the clamping pieces are subjected to elastic acting force of the elastic pieces to have a movement trend close to the abutting surface, and the clamping pieces and the abutting surface are used for jointly clamping the printed circuit board. The utility model mainly solves the technical problem that the existing clamp is easy to break under high-pressure flushing of cleaning liquid after clamping a printed circuit board.
Description
Technical Field
The utility model relates to the technical field of printed circuit board production and manufacturing, in particular to a clamp for a printed circuit board.
Background
After the front-end equipment etches out the required conductive circuit through liquid medicine, the printed circuit board needs to be cleaned to clean the liquid medicine remained on the surface of the printed circuit board, the printed circuit board needs to be clamped in a clamp before being sent into the cleaning equipment, the existing clamp is large in size and occupies more space of the cleaning equipment, the clamping mode of the existing clamp clamps the printed circuit board up and down fixedly, when the thickness of the printed circuit board is thinner (for example, less than 1 mm), the cleaning liquid flushed under high pressure can cause the printed circuit board to have internal stress capable of generating micro deformation, if the internal stress is not released, the thinner printed circuit board can loose, and the loose printed circuit board is easy to crack under high-pressure flushing of the cleaning liquid.
Disclosure of Invention
The utility model aims to provide a clamp for a printed circuit board, which mainly solves the technical problem that the existing clamp is easy to break under high-pressure flushing of cleaning liquid after clamping the printed circuit board.
To achieve the purpose, the utility model adopts the following technical scheme:
a clamp for a printed circuit board comprises a frame and two clamping mechanisms;
the two clamping mechanisms are sequentially arranged along the vertical direction, one clamping mechanism positioned above is fixedly connected with the frame, one clamping mechanism positioned below is in sliding connection with the frame in the vertical direction, and the two clamping mechanisms are used for clamping the printed circuit board;
the clamping mechanism comprises a cross beam, a plurality of elastic pieces and a plurality of clamping pieces, wherein the elastic pieces are arranged on the cross beam, the clamping pieces are rotationally connected with the cross beam, the cross beam is connected with the frame, the cross beam is provided with an abutting surface, the elastic pieces are abutted to the corresponding clamping pieces, the clamping pieces are subjected to elastic acting force of the elastic pieces to have a movement trend close to the abutting surface, and the clamping pieces and the abutting surface are used for clamping a printed circuit board together.
In one embodiment, a sliding seat is fixed on the frame, a sliding groove is arranged on the sliding seat, the sliding groove extends along the vertical direction, and a cross beam of a clamping mechanism positioned below is inserted into the sliding groove and slides freely in the sliding groove.
In one embodiment, an upper positioning block and a lower positioning block are arranged in the chute, the upper positioning block is arranged on a path of upward movement of the lower clamping mechanism, and the lower positioning block is arranged on a path of downward movement of the lower clamping mechanism.
In one embodiment, the clamping mechanism further comprises a base and a fixing shaft fixed on the base, the base is fixedly connected with the cross beam, and the elastic piece and the clamping piece are sleeved on the outer wall of the fixing shaft.
In one embodiment, the elastic element comprises a first torsion spring part, a second torsion spring part and a connecting part, the first torsion spring part and the second torsion spring part are sleeved on the outer wall of the fixed shaft, the clamping element is located between the first torsion spring part and the second torsion spring part, and the connecting part is connected with the first torsion spring part and the second torsion spring part and abuts against the outer wall of the clamping element.
In one embodiment, a clamping pad is fixed on the clamping piece, and the clamping pad and the abutting surface are used for clamping the printed circuit board together.
In one embodiment, the beam is provided with a plurality of protruding portions, the abutment surface is disposed on the protruding portions, and the protruding portions and the corresponding one of the chuck pads are used for clamping the printed circuit board together.
In one embodiment, the outer surfaces of the frame and the cross beam are covered with a teflon layer.
Compared with the prior art, the clamp for the printed circuit board has the following beneficial effects:
when the clamp of the technical scheme is used, the upper edge of the printed circuit board is clamped by the clamping piece of the upper clamping mechanism, the lower edge of the printed circuit board is clamped by the clamping piece of the lower clamping mechanism, and as one clamping mechanism below can freely slide relative to the frame in the vertical direction, the lower edge of the printed circuit board can be pulled by the clamping mechanism below by utilizing dead weight. In addition, this technical scheme adopts clamping piece and crossbeam centre gripping printed wiring board jointly to replace traditional big clip for anchor clamps have the advantage that occupation space is little, can not occupy the too much space of cleaning equipment.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fixture for a printed circuit board according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a partial enlarged view at B in FIG. 1;
fig. 4 is a schematic structural view of a fixture for a printed circuit board according to an embodiment of the present utility model at another angle;
fig. 5 is a partial enlarged view at C in fig. 4.
Wherein, each reference sign in the figure:
10. a frame; 101. a slide; 1011. a chute; 102. an upper positioning block; 103. a lower positioning block;
20. a clamping mechanism; 201. a cross beam; 2011. an abutment surface; 2012. a boss; 202. an elastic member; 2021. a first torsion spring portion; 2022. a second torsion spring portion; 2023. a connection part; 203. a clamping member; 204. a base; 205. a fixed shaft; 206. a clamp pad;
30. and a printed wiring board.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Referring to fig. 1 to 5 together, the present embodiment provides a fixture for a printed circuit board, which includes a frame 10 and two clamping mechanisms 20, wherein the two clamping mechanisms 20 are sequentially arranged along a vertical direction, one clamping mechanism 20 above is fixedly connected with the frame 10, one clamping mechanism 20 below is slidingly connected with the frame 10 along the vertical direction, and the two clamping mechanisms 20 are both used for clamping the printed circuit board 30.
Specifically, the clamping mechanism 20 includes a cross beam 201, a plurality of elastic members 202 and a plurality of clamping members 203, wherein the cross beam 201 of the upper clamping mechanism 20 is fixed on the frame 10, the cross beam 201 of the lower clamping mechanism 20 is slidably connected with the frame 10 in the vertical direction, the elastic members 202 and the clamping members 203 are mounted on the cross beam 201, the elastic members 202 and the clamping members 203 are in one-to-one correspondence, one end of the elastic member 202 abuts against the cross beam 201, the other end of the elastic member 202 abuts against a corresponding one of the clamping members 203, the cross beam 201 has an abutment surface 2011, the clamping members 203 are subject to the force of the elastic member 202 to have a movement tendency close to the abutment surface 2011, and the clamping members 203 and the abutment surfaces 2011 are used for jointly clamping the printed wiring board 30.
When the clamp of the embodiment is used, the upper edge of the printed circuit board 30 is clamped by the clamping piece 203 of the upper clamping mechanism 20, the lower edge of the printed circuit board 30 is clamped by the clamping piece 203 of the lower clamping mechanism 20, and since the lower clamping mechanism 20 can slide freely in the vertical direction relative to the frame 10, the lower edge of the printed circuit board 30 can be pulled by the self weight of the lower clamping mechanism 20, and when the printed circuit board 30 is washed under high pressure of the washing liquid, the printed circuit board 30 can be always in a tight state, and the printed circuit board 30 can resist a large washing force, so that the printed circuit board 30 can not break finally. In addition, the clamping piece 203 and the cross beam 201 are adopted to jointly clamp the printed circuit board 30 to replace a traditional large clamp, so that the clamp has the advantage of small occupied space, and cannot occupy excessive space of cleaning equipment.
More specifically, the clamping mechanism 20 further includes a plurality of bases 204 and a plurality of fixing shafts 205, the fixing shafts 205 and the bases 204 are in one-to-one correspondence and fixed on the bases 204, the bases 204 are fixedly connected with the cross beams 201, an elastic member 202 and a clamping member 203 are sleeved on the outer wall of each fixing shaft 205, and the clamping member 203 and the fixing shaft 205 are in clearance fit, so that the clamping member 203 can freely rotate around the fixing shaft 205. In assembly, the elastic member 202, the clamping member 203 and the fixing shaft 205 may be assembled to the base 204 in advance, and then the base 204 may be fixed to the cross member 201, thereby facilitating assembly.
Preferably, the elastic member 202 specifically includes a first torsion spring portion 2021, a second torsion spring portion 2022, and a connecting portion 2023, the first torsion spring portion 2021 and the second torsion spring portion 2022 are sleeved on the outer wall of the fixed shaft 205, the clamping member 203 is disposed between the first torsion spring portion 2021 and the second torsion spring portion 2022, the connecting portion 2023 connects the first torsion spring portion 2021 and the second torsion spring portion 2022 and abuts against the outer wall of the clamping member 203, and the connecting portion 2023 receives the twisting force of the first torsion spring portion 2021 and the second torsion spring portion 2022 to make the clamping member 203 have a movement tendency toward the abutting surface 2011.
Preferably, in this embodiment, two sliding carriages 101 are fixed on the frame 10, the sliding carriages 101 are provided with sliding grooves 1011, the sliding grooves 1011 extend in the vertical direction, and the cross beams 201 of the lower clamping mechanism 20 are respectively inserted into the sliding grooves 1011 of the two sliding carriages 101, so that the lower clamping mechanism 20 can freely slide in the vertical direction relative to the frame 10 along the sliding grooves 1011. In addition, an upper positioning block 102 and a lower positioning block 103 are disposed in the chute 1011, the upper positioning block 102 and the lower positioning block 103 are both fixedly connected with the slide 101, the upper positioning block 102 is disposed on a path along which the cross beam 201 of the lower clamping mechanism 20 moves upward to limit a final position along which the lower clamping mechanism 20 moves upward, and the lower positioning block 103 is disposed on a path along which the cross beam 201 of the lower clamping mechanism 20 moves downward to limit a final position along which the lower clamping mechanism 20 moves downward.
Preferably, the clamping mechanism 20 further includes a clamping pad 206, the clamping pad 206 is fixed on the clamping member 203, and the clamping pad 206 and the abutment surface 2011 of the beam 201 are used to jointly clamp the printed circuit board 30. In addition, the beam 201 is provided with a plurality of protrusions 2012, and the abutment surface 2011 is disposed on the protrusions 2012, and the protrusions 2012 and the corresponding one of the chuck pads 206 are used to jointly clamp the printed circuit board 30. By providing the boss 2012, the area of the cross member 201 covering the printed wiring board 30 can be reduced, thereby facilitating the cleaning operation of the cleaning apparatus on the printed wiring board 30 in a large area.
Preferably, the outer surfaces of the frame 10 and the cross beam 201 of the present embodiment are covered with a teflon layer, and the teflon layer has a hydrophobic property, that is, after the jig loaded with the printed wiring board 30 is put into the cleaning apparatus in a vertical posture, the cleaning solution does not remain on the outer surface of the jig, but rapidly flows down, ensuring that the next process is not affected by the existence of excessive cleaning solution on the jig.
The foregoing description of the preferred embodiments of the present utility model has been provided for the purpose of illustrating the general principles of the present utility model and is not to be construed as limiting the scope of the utility model in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model, and other embodiments of the present utility model as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present utility model.
Claims (8)
1. The clamp for the printed circuit board is characterized by comprising a frame and two clamping mechanisms;
the two clamping mechanisms are sequentially arranged along the vertical direction, one clamping mechanism positioned above is fixedly connected with the frame, one clamping mechanism positioned below is in sliding connection with the frame in the vertical direction, and the two clamping mechanisms are used for clamping the printed circuit board;
the clamping mechanism comprises a cross beam, a plurality of elastic pieces and a plurality of clamping pieces, wherein the elastic pieces are arranged on the cross beam, the clamping pieces are rotationally connected with the cross beam, the cross beam is connected with the frame, the cross beam is provided with an abutting surface, the elastic pieces are abutted to the corresponding clamping pieces, the clamping pieces are subjected to elastic acting force of the elastic pieces to have a movement trend close to the abutting surface, and the clamping pieces and the abutting surface are used for clamping a printed circuit board together.
2. The clamp of the printed wiring board as claimed in claim 1, wherein a slide is fixed on said frame, a slide groove is provided on said slide, said slide groove extends in a vertical direction, and a cross beam of a clamping mechanism positioned below is inserted into said slide groove and slides freely in said slide groove.
3. The fixture of claim 2, wherein an upper positioning block and a lower positioning block are disposed in the chute, the upper positioning block being disposed on a path of upward movement of one of the clamping mechanisms below, the lower positioning block being disposed on a path of downward movement of one of the clamping mechanisms below.
4. The fixture of claim 1, wherein the clamping mechanism further comprises a base and a fixed shaft fixed on the base, the base is fixedly connected with the cross beam, and the elastic member and the clamping member are both sleeved on the outer wall of the fixed shaft.
5. The fixture for a printed wiring board according to claim 4, wherein the elastic member comprises a first torsion spring portion, a second torsion spring portion and a connecting portion, the first torsion spring portion and the second torsion spring portion are respectively sleeved on the outer wall of the fixed shaft, the clamping member is located between the first torsion spring portion and the second torsion spring portion, and the connecting portion connects the first torsion spring portion and the second torsion spring portion and abuts against the outer wall of the clamping member.
6. The clamp of claim 1, wherein a clamp pad is secured to the clamp member, the clamp pad and the abutment surface being configured to cooperate to clamp the printed circuit board.
7. The clamp of claim 6, wherein the cross member is provided with a plurality of bosses, the abutment surface being provided on the bosses, the bosses and a corresponding one of the clamp pads being adapted to cooperatively clamp the printed circuit board.
8. The jig for printed wiring boards of any one of claims 1 to 7, wherein the outer surfaces of the frame and the cross member are covered with a teflon layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354218.1U CN219660033U (en) | 2023-02-27 | 2023-02-27 | Clamp for printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354218.1U CN219660033U (en) | 2023-02-27 | 2023-02-27 | Clamp for printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219660033U true CN219660033U (en) | 2023-09-08 |
Family
ID=87878185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320354218.1U Active CN219660033U (en) | 2023-02-27 | 2023-02-27 | Clamp for printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219660033U (en) |
-
2023
- 2023-02-27 CN CN202320354218.1U patent/CN219660033U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |