CN216373775U - PCB printing solder paste optimized positioning tool - Google Patents

PCB printing solder paste optimized positioning tool Download PDF

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Publication number
CN216373775U
CN216373775U CN202123049973.9U CN202123049973U CN216373775U CN 216373775 U CN216373775 U CN 216373775U CN 202123049973 U CN202123049973 U CN 202123049973U CN 216373775 U CN216373775 U CN 216373775U
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China
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pcb
transparent plate
positioning tool
base
optimized positioning
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CN202123049973.9U
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Chinese (zh)
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王方亮
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Beijing Wanlong Essential Technology Co ltd
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Beijing Wanlong Essential Technology Co ltd
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Abstract

The utility model discloses a PCB printing solder paste optimized positioning tool, which comprises: a base on which a PCB is placed; the bracket is arranged on the base; the transparent plate is horizontally placed on the support and positioned above the PCB, a blank area on the PCB can be seen through the transparent plate, and a thimble collision mark point is marked on the transparent plate corresponding to the blank area; and the support leg is arranged on the base and used for supporting the PCB so that the PCB is positioned and placed relative to one corner of the transparent plate. According to the utility model, the PCB is seen through the transparent plate, the arrangement and the vacant positions of the elements on the PCB can be clearly observed, the proper vacant positions are selected on the transparent plate for point position marking, the transparent plate for marking the point position is placed on the worktable of the solder paste printer, and the thimble can be placed at the marked point position, so that the damage of the elements caused by the fact that the thimble is abutted against the elements is avoided.

Description

PCB printing solder paste optimized positioning tool
Technical Field
The utility model relates to the technical field of electronic circuit board production, in particular to a PCB printing solder paste optimized positioning tool.
Background
PCBs (printed circuit boards) are one of the important components in the electronics industry, and are mainly used for electrical interconnection of electronic components in integrated circuits, and as technology is updated, the printed circuit boards have been developed from single-sided boards to double-sided boards, multi-layer boards, flexible boards, and the like.
In the prior art, the connection between the electronic component and the printed circuit board is realized mainly by coating solder paste on the printed circuit board, accurately pasting the component on the printed circuit board coated with the solder paste, melting the solder paste by heating, and forming a welding spot between the component and the printed circuit board after cooling, thereby forming the connection. In the tin brushing process of the tin paste printing machine, in order to ensure the tin brushing quality, a thimble used for abutting against a printed circuit board needs to be placed on a working platform of the printing machine, and the position of the thimble where the thimble is placed needs to ensure that no component is welded at the position where the thimble abuts against. When the double-sided printed circuit board is brushed with tin, because the double sides of the printed circuit board are provided with elements, and the elements are arranged densely, the positions of the elements on the back surface of the board can not be judged through the front surface of the board, and if the ejector pins are not placed accurately, the elements are very easy to be jacked.
In the existing operation, the placement of the ejector pins is realized by means of experience of operators, the printed circuit board is placed on a working platform of the printing machine, the placement positions of the ejector pins are roughly judged by observing, but the method cannot realize accurate placement of the ejector pins, elements which are damaged by the ejector pins are also a common thing in actual operation, and the problem is more prominent along with the increase of the arrangement density of the elements.
Disclosure of Invention
In view of the defects of the prior art, the utility model provides a PCB printing solder paste optimized positioning tool to solve one or more problems in the prior art.
The technical scheme of the utility model is as follows:
the utility model provides a PCB printing solder paste optimizing positioning frock, includes:
a base on which a PCB is placed;
the bracket is arranged on the base;
the transparent plate is horizontally placed on the support and positioned above the PCB, a blank area on the PCB can be seen through the transparent plate, and a thimble collision mark point is marked on the transparent plate corresponding to the blank area;
and the support leg is arranged on the base and used for supporting the PCB so that the PCB is positioned and placed relative to one corner of the transparent plate.
Preferably, the base is a square metal plate.
Preferably, the support comprises four legs with right-angled cross sections, and the right-angled ends of the four legs are correspondingly connected to the four right-angled corners of the square metal plate respectively.
Preferably, the other end of the supporting leg is provided with a containing groove for containing the transparent plate.
Preferably, the accommodating groove is a right-angle groove.
Preferably, at least two adjacent edges of the square metal plate are provided with sliding grooves, and the support legs comprise sliding support legs capable of sliding along the sliding grooves.
Preferably, the support legs further comprise a moving support leg capable of moving on the surface of the base, and the moving support leg can be fixed on the base.
Preferably, the movable support leg comprises a movable support leg body and a magnet arranged at the bottom or inside of the movable support leg body.
Preferably, the sliding support leg and the moving support leg are provided with a limiting groove at the contact end with the PCB, and the plurality of support legs are matched with each other to support the PCB through the limiting groove and limit the position of the PCB.
Preferably, the transparent plate is an acrylic plate.
Compared with the prior art, the utility model has the beneficial effects that: the utility model aims to provide a PCB printing solder paste optimized positioning tool, which can clearly observe the arrangement and blank areas of elements on a circuit board through a transparent plate perspective PCB, select a proper vacancy on the transparent plate to label the contact point of an ejector pin, place the transparent plate with the labeled point on a workbench of a solder paste printing machine, place the ejector pin at the labeled point, thereby avoiding the damage of the elements caused by the contact of the ejector pin on the elements, and the tool has simple integral structure, convenient operation and practicability. The utility model also has at least the following practical effects:
(1) the base is a square plate, so that the production and the processing are convenient, and the shape of the base can be matched with that of the PCB; the base material is the metal for it can be adsorbed on to have the removal stabilizer blade of function of magnetism, ensures to remove the support stability of stabilizer blade.
(2) The adjacent edges of the base are provided with sliding grooves, the sliding support legs are respectively arranged in the two adjacent sliding grooves, the sliding grooves limit the sliding support legs to move on the adjacent edges of the base, on one hand, the placing position of the PCB is limited, and the unified placing standard is achieved by taking the intersection of the two sliding grooves as a reference placing point; on the other hand, the sliding support leg is matched with the movable support leg so as to be suitable for supporting PCBs with different shapes and sizes like squares and rectangles and the like, and the universality is improved.
(3) Because the removal stabilizer blade does not have the stop gear restriction, for improving support stability, at removal stabilizer blade bottom or inside additional installation magnet, through the effect of magnetism with remove the mobilizable absorption of stabilizer blade on the base, promoted the support stability who removes the stabilizer blade.
(4) Four cross-section personally submitting right angled landing legs respectively corresponding connect in on four right angles of square metal sheet, the other end of landing leg is equipped with and is used for the holding the storage tank of transparent plate places the transparent plate in the storage tank, and one of them angle of transparent plate can place the point with PCB's benchmark and correspond in the vertical direction to this corresponding department is as placing transparent plate and PCB at the reference point on tin cream printing machine workstation, thereby improves the precision that the thimble was placed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, shall fall within the scope covered by the technical contents disclosed in the present invention.
FIG. 1 is a schematic diagram of an overall structure of a PCB printing solder paste optimized positioning tool in an embodiment of the utility model;
FIG. 2 is an exploded view of an embodiment of the PCB printing solder paste optimized positioning tool in the utility model;
FIG. 3 is a schematic top view of an optimized PCB solder paste positioning tool according to an embodiment of the utility model;
fig. 4 is an enlarged view of fig. 3 (schematic dot notation).
Reference numerals:
1. a base; 1-1, a chute; 2. a support; 2-1, supporting legs; 2-2, a containing groove; 3. a transparent plate; 4. a sliding leg; 5. a movable support leg; 5-1, moving the support leg body; 5-2, a magnet; 6. a PCB; 7. and (5) point location.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention is described in further detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and can be communicated with each other inside the two components or in an interaction relationship of the two components; any suitable arrangement is possible. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be understood that the terms "comprises/comprising," "consisting of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "center," and the like are used in an orientation or positional relationship illustrated in the drawings for convenience in describing and simplifying the utility model, and do not indicate or imply that the device, component, or structure being referred to must have a particular orientation, be constructed in a particular orientation, or be operated in a particular manner, and should not be construed as limiting the utility model.
The following describes the implementation of the present invention in detail with reference to preferred embodiments.
Referring to fig. 1 and 2, the utility model provides a PCB printing solder paste optimized positioning tool, which comprises a base 1, wherein a square metal plate is selected from the base 1, the square metal plate is convenient to produce and process, the shape of the square metal plate can be matched with that of a PCB, the metal material is adopted to enhance the firmness degree of the base, and the metal material enables a movable support leg 5 with a magnetic attraction function to be adsorbed on the base 1, so that the support stability of the movable support leg 5 is improved.
The base 1 is also provided with a support 2 for supporting the transparent plate 3, as a better implementation mode, the support 2 is composed of four support legs 2-1 with right-angled cross sections, the four support legs are respectively and correspondingly connected with the four right angles of the square metal plate, the other end of each support leg 2-1 is provided with a containing groove 2-2 for containing and placing the transparent plate 3, the transparent plate 3 is placed in the containing groove 2-2, the transparent plate is made of a smooth and flat acrylic plate with the thickness of 5-8mm, the acrylic plate has moderate strength and is not easy to damage, the perspective effect can meet the requirement, the PCB6 is viewed through the transparent plate 3, the arrangement and vacancy of elements on the circuit board can be clearly observed, the proper vacancy is selected on the transparent plate 3 for marking the thimble abutting point 7, the transparent plate 3 marked with the mark 7 is placed on a worktable of a tin paste printing machine, the position of the ejector pin is adjusted to be aligned with the marked point position 7 on the transparent plate 3, and the ejector pin can be placed at the marked point position 7, so that the ejector pin is prevented from abutting against the element to cause the element damage.
Two adjacent right-angle edges of the base 1 are provided with sliding grooves 1-1, at least one pair of sliding support legs 4 are respectively arranged in the two adjacent sliding grooves 1-1, the sliding grooves 1-1 limit the sliding support legs 4 to move on the adjacent edges of the base 1, on one hand, the placement position of the PCB6 is limited, the intersection of the two sliding grooves 1-1 is used as a reference placement point, and the standard placement is unified; on the other hand, the sliding support leg 4 is matched with the moving support leg 5 to be suitable for supporting printed circuit boards with different shapes and sizes like square and rectangle, and the universality is improved.
The sliding legs 4 and the moving legs 5 may be short columns, which are mainly used to support the PCB6 away from the base 1, so that the elements on the PCB6 are at a certain distance from the base 1, and the elements are prevented from being damaged due to friction collision with the base.
Preferably, the sliding support leg 4 is provided with a clamping groove matched with the sliding groove 1-1, and the clamping groove is arranged in the sliding groove 1-1, so that the sliding support leg 4 can move along the sliding groove 1-1; the movable support leg 5 comprises a movable support leg body 5-1 and a magnet 5-2 arranged at the bottom or inside the movable support leg body 5-1, and the movable support leg 5 is not limited by a limiting mechanism, so that the movable support leg 5 can be movably adsorbed on the base 1 through the magnetic attraction effect, the supporting stability of the movable support leg 5 is improved, and the movable support leg 5 can be randomly positioned at any suitable position on the base 1; on the material selection of removing stabilizer blade 5, owing to remove 5 tops of stabilizer blade and need set up the spacing groove, consider factors such as processing complexity and stabilizer blade durability, adopt the mode of body plus magnet to design, promoted the convenience of removing 5 processing of stabilizer blade and the durability.
Preferably, the support ends of the movable support leg 5 and the sliding support leg 4 are provided with limiting grooves, the limiting grooves are preferably straight grooves processed into practical shapes, the limiting grooves block the edge of the PCB6, and the PCB6 is stably supported between the base 1 and the transparent plate 3.
Referring to fig. 3, when the PCB printing solder paste optimized positioning tool provided by the utility model is used, the position of the sliding support leg 4 is firstly adjusted to adapt to the size of the PCB6, two sides of the PCB6 are respectively lapped on the sliding support leg 4, the moving support leg 5 is adjusted to a proper position, the PCB6 is stably supported on the base 1 through the limiting grooves of the moving support leg 5 and the sliding support leg 4, the transparent plate 3 is stably placed in the accommodating groove 2-2 of the bracket 2, the position of element arrangement on the PCB6 is observed through the transparent plate 3, the proper position of a blank area is selected to mark the point 7 (as shown in fig. 4), the blank area is generally not less than 5mm, and a plurality of point positions 7 are marked. The steps are repeated, and the two side points of the PCB6 are marked on the transparent plate 3. The transparent plate 3 marked with the point location 7 is taken down, the transparent plate 3 is placed on a working platform of a solder paste printing machine, the position of the ejector pins is adjusted to be corresponding to the point location 7 marked by the transparent plate 3, the transparent plate 3 is taken down, the corresponding surface of the PCB6 is placed on the working platform, the ejector pins just can be right aligned to and abut against a blank area on the PCB6 at the moment, the operation is completed, the positioning precision of the ejector pins abutting on the PCB6 is ensured, the situation that components on the PCB6 are damaged due to positioning and ejector pin abutting errors is avoided, the ejector pins on the front side and the back side of the PCB6 can be placed simultaneously, the time is saved, and the efficiency of changing the machine is improved.
It will be readily appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a PCB printing solder paste optimizing positioning frock which characterized in that includes:
a base on which a PCB is placed;
the bracket is arranged on the base;
the transparent plate is horizontally placed on the support and positioned above the PCB, a blank area on the PCB can be seen through the transparent plate, and a thimble collision mark point is marked on the transparent plate corresponding to the blank area;
and the support leg is arranged on the base and used for supporting the PCB so that the PCB is positioned and placed relative to one corner of the transparent plate.
2. The optimized positioning tool set forth in claim 1, wherein: the base is a square metal plate.
3. The optimized positioning tool set forth in claim 2, wherein: the support comprises four supporting legs with right-angled cross sections, and the right-angled ends of the four supporting legs are correspondingly connected to the four right-angled sides of the square metal plate respectively.
4. The optimized positioning tool set forth in claim 3, wherein: the other end of the supporting leg is provided with a containing groove for containing the transparent plate.
5. The optimized positioning tool set forth in claim 4, wherein: the containing groove is a right-angle groove.
6. The optimized positioning tool set forth in claim 2, wherein: at least two adjacent edges of the square metal plate are provided with sliding grooves, and the support legs comprise sliding support legs capable of sliding along the sliding grooves.
7. The optimized positioning tool set forth in claim 6, wherein: the support legs further comprise a moving support leg capable of moving on the surface of the base, and the moving support leg can be fixed on the base.
8. The optimized positioning tool set forth in claim 7, wherein: the movable support leg comprises a movable support leg body and a magnet arranged at the bottom or inside the movable support leg body.
9. The optimized positioning tool set forth in claim 7, wherein: the contact ends of the sliding support legs and the moving support legs and the PCB are respectively provided with a limiting groove, and the plurality of support legs are matched with each other, support the PCB through the limiting grooves and limit the position of the PCB.
10. The optimized positioning tool according to any one of claims 1-9, wherein: the transparent plate is an acrylic plate.
CN202123049973.9U 2021-12-07 2021-12-07 PCB printing solder paste optimized positioning tool Active CN216373775U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123049973.9U CN216373775U (en) 2021-12-07 2021-12-07 PCB printing solder paste optimized positioning tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123049973.9U CN216373775U (en) 2021-12-07 2021-12-07 PCB printing solder paste optimized positioning tool

Publications (1)

Publication Number Publication Date
CN216373775U true CN216373775U (en) 2022-04-26

Family

ID=81221817

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123049973.9U Active CN216373775U (en) 2021-12-07 2021-12-07 PCB printing solder paste optimized positioning tool

Country Status (1)

Country Link
CN (1) CN216373775U (en)

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