CN218735281U - Circuit board pastes dress carrier suitable for multiple size - Google Patents
Circuit board pastes dress carrier suitable for multiple size Download PDFInfo
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- CN218735281U CN218735281U CN202222809285.6U CN202222809285U CN218735281U CN 218735281 U CN218735281 U CN 218735281U CN 202222809285 U CN202222809285 U CN 202222809285U CN 218735281 U CN218735281 U CN 218735281U
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- limiting block
- base
- screw
- transverse limiting
- guide rail
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Abstract
The invention belongs to the printed board pasting field, in particular to a circuit board pasting carrier suitable for various sizes, which comprises: the ejector pin comprises a base, a longitudinal limiting block, a first transverse limiting block, a second transverse limiting block and an ejector pin; guide rail grooves are formed in the left side and the right side of the base, and screw mounting holes are formed in the base between the two guide rail grooves; the longitudinal limiting block and the first transverse limiting block are both provided with through holes, and the longitudinal limiting block and the first transverse limiting block are fixed on the base by screws; the two ends of the second transverse limiting block are provided with sliding blocks, and the sliding blocks at the two ends of the second transverse limiting block are respectively arranged on the guide rail grooves of the base, so that the second transverse limiting block can slide up and down on the base; the thimble is fixed in the mounting hole of the screw; according to the invention, the longitudinal limiting block, the transverse limiting block and the thimble are flexibly adjusted on the base, so that the accurate positioning and stable support of the printed board in the printing and pasting processes can be realized.
Description
Technical Field
The invention belongs to the field of printed board mounting, and particularly relates to a mounting carrier for circuit boards in various sizes.
Background
With the continuous development and evolution of electronic products, the printing requirements of small-batch and small-size circuit boards are increasing no matter for the research and development of new products or the production of old products. In SMT production, the key for guaranteeing the printing and mounting quality is to perform good positioning support on a printed board. For a printed board with lower rigidity, the printed board is easy to warp and deform under the clamping of an equipment rail, the pressure of a scraper and the pressure of a suction nozzle, so that the problems of poor solder paste printing pattern, low component mounting precision, damage to components and the like are caused. The supporting area of the ejector pins of the printer and the chip mounter is limited, and components on the back of the printed board are difficult to flexibly avoid during double-sided mounting, so that the problem of deformation of the printed board in actual production cannot be effectively solved.
Disclosure of Invention
In order to solve the problems of the prior art, the present invention provides a carrier for mounting circuit boards with various sizes, the device comprising: the device comprises a base 1, a longitudinal limiting block 2, a first transverse limiting block 3, a second transverse limiting block 4 and a thimble 5; guide rail grooves 101 are formed in the left side and the right side of the base, and a screw mounting hole array is arranged on the base 1 between the two guide rail grooves; a first through hole 201 is formed in the longitudinal limiting block 2, and a screw penetrates through the first through hole 201 in the longitudinal limiting block 2 and is fixed in the screw mounting hole 102 of the screw mounting hole array; the first transverse limiting block 3 is provided with a second through hole 301, the first transverse limiting block 3 is placed on the base 1, and the first transverse limiting block is fixed in the screw mounting hole 102 after penetrating through the second through hole 301 by a screw; the two ends of the second transverse limiting block 4 are both provided with sliding blocks, and the sliding blocks at the two ends of the second transverse limiting block 4 are respectively arranged on the guide rail grooves 101 of the base 1, so that the second transverse limiting block 4 can slide up and down on the base 1; the thimble 5 is fixed in the screw mounting hole 102.
Preferably, a hollow design is adopted for the part between the two guide rail grooves of the base 1, so that the part is in a grid shape; wherein the screw mounting holes 102 are evenly arranged on the grid frame.
Preferably, at least 2 first through holes 201 are formed in the longitudinal limiting block 2, the first through holes 201 are of strip structures, and the through holes of the strip structures are parallel to each other.
Further, an arc-shaped groove is formed above the first through hole of the strip-shaped structure and is matched with a nut of the screw, so that the nut of the screw is embedded into the longitudinal limiting block 2.
Preferably, the longitudinal limiting block 2 is further provided with a sinking step, and the sinking step is used for positioning and supporting the printed board.
Preferably, a slider fixing groove is formed in the second transverse limiting block 4, and the slider is fixed to the second transverse limiting block 4 through the slider fixing groove after passing through the guide rail groove 101.
Further, the slider comprises a connecting screw 401 and a spring 402; connecting screw 401 comprises nut 4011 and threaded rod 4012, and spring 402 is sleeved on threaded rod 4012 of connecting screw 401; the threaded rod 4012 of the connecting screw 401 passes through the guide rail groove 101 and is embedded in the slider fixing groove of the second transverse stopper 4, so that the second transverse stopper 4 can slide on the guide rail groove 101.
Preferably, the thimble 5 comprises a fixed plate 51 and a supporting block 52, and the supporting block 52 is fixed on the fixed plate 51; the fixing plate 51 is provided with a third through hole 510, and a screw is inserted through the third through hole 510 and inserted into the screw mounting hole 102, so that the thimble 5 is fixed to the base 1.
The invention has the beneficial effects that:
the invention provides a universal carrier for mounting a printed board, which can realize accurate positioning and stable support of the printed board in the printing and mounting processes through flexible adjustment of a longitudinal limiting block, a transverse limiting block and an ejector pin on a base, is suitable for the double-sided mounting process of the printed boards with different external dimensions, effectively ensures the mounting quality and improves the production and manufacturing efficiency.
Drawings
Fig. 1 is a top view of the mounting carrier of the present invention;
fig. 2 is a bottom view of the mounting carrier of the present invention;
the device comprises a base 1, a base 101, a guide rail groove 102 and a screw mounting hole; 2. a longitudinal limiting block 201 and a first through hole; 3. a first transverse limiting block 301 and a second through hole; 4. a second transverse limiting block 401, a connecting screw rod 4011, a nut 4012, a threaded rod 402 and a spring; 5. the ejector pin 51, the fixing plate 510, the third through hole 52 and the supporting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of a circuit board mounting carrier for multiple sizes, as shown in fig. 1 and 2, the apparatus comprising: the device comprises a base 1, a longitudinal limiting block 2, a first transverse limiting block 3, a second transverse limiting block 4 and a thimble 5; guide rail grooves 101 are formed in the left side and the right side of the base, and a screw mounting hole array is arranged on the base 1 between the two guide rail grooves; a first through hole 201 is formed in the longitudinal limiting block 2, and a screw penetrates through the first through hole 201 in the longitudinal limiting block 2 and is fixed in the screw mounting hole 102 of the screw mounting hole array; the first transverse limiting block 3 is provided with a second through hole 301, the first transverse limiting block 3 is placed on the base 1, and the first transverse limiting block is fixed in the screw mounting hole 102 after penetrating through the second through hole 301 by a screw; the two ends of the second transverse limiting block 4 are both provided with sliding blocks, and the sliding blocks at the two ends of the second transverse limiting block 4 are respectively arranged on the guide rail grooves 101 of the base 1, so that the second transverse limiting block 4 can slide up and down on the base 1; the thimble 5 is fixed in the screw mounting hole 102.
Optionally, the base is a main body frame of the carrier, and is used for installing components such as a longitudinal limiting block, a transverse limiting block, an ejector pin and the like, the external dimensions of the base are selected according to the size of a printed board to be mounted, and the base is provided with a screw guide rail groove connected with the base.
Preferably, a hollow design is adopted for the part between the two guide rail grooves of the base 1, so that the part is in a grid shape; wherein the screw mounting holes 102 of the array of screw mounting holes are evenly arranged on the grid frame. The hollow design is adopted for the part between the two guide rail grooves of the base 1, so that the weight of the carrier can be reduced.
Preferably, the specification of the screw is M3.
Optionally, at least 2 first through holes 201 are formed in the longitudinal limiting block 2, the first through holes 201 are in a strip structure, and the through holes in the strip structure are parallel to each other. The two adjacent first through holes 201 correspond to the screw mounting holes 102 on the base 1, so that the longitudinal limiting block 2 can be fixed on the base through the 2 first through holes 201, and the base is prevented from shaking in the use process.
Preferably, an arc-shaped groove is formed above the first through hole of the strip-shaped structure and is matched with a nut of the screw, so that the nut of the screw is embedded into the longitudinal limiting block 2, and the surface above the longitudinal limiting block 2 is flat.
The longitudinal limiting block 2 is also provided with a sinking step, the sinking step is used for positioning and supporting the printed board, and the depth of the sinking step is slightly smaller than the thickness of the printed board, so that the printing is prevented from being hindered.
The length of the first transverse limiting block 3 is equal to the distance between the two guide rail grooves of the base, the first transverse limiting block 3 is fixed on the edge of the base in the using process of the device, and one side of the printing plate is limited and fixed through the first transverse limiting block 3.
The slider fixing groove that is provided with on the horizontal stopper 4 of second, the slider passes through behind the guide rail groove 101 and fixes on the horizontal stopper 4 of second through the slider fixing groove.
Optionally, the slider comprises a connecting screw 401 and a spring 402; connecting screw 401 comprises nut 4011 and threaded rod 4012, and spring 402 is sleeved on threaded rod 4012 of connecting screw 401; the threaded rod 4012 of the connecting screw 401 passes through the guide rail groove 101 and is embedded in the slider fixing groove of the second transverse stopper 4, so that the second transverse stopper 4 can slide on the guide rail groove 101.
The longitudinal limiting block and the transverse limiting block are used for positioning and supporting the longitudinal edge and the transverse edge of the printed board and are fixed on the base through screws or connecting screw rods and springs. The limiting block is provided with a screw hole and a sinking step respectively, the screw hole is used for installing a fixing screw, and a nut is not higher than the limiting block after the screw is installed. The sunken step is used for positioning and supporting the printed board, and the depth of the sunken step is slightly smaller than the thickness of the printed board so as to avoid hindering printing. Wherein: the longitudinal limiting blocks are blocks with short length, a plurality of longitudinal limiting blocks can be combined to be used to limit and support the printed board when necessary, and a sliding groove is formed in the middle of each limiting block and is used for better compatibility with the size change of the printed board, so that the spacing limitation of the screw hole array is compensated. Horizontal stopper is two longer crossbands, wherein: the first transverse limiting block is fixed at the original point position of the base through a screw, and the second transverse limiting block is installed on the base through a connecting screw rod and a spring. After the installation, the spring is in a compressed state, and the second transverse limiting block and the base are kept fixed through the elasticity of the spring. When the second transverse limiting block is lifted upwards, the spring can be further compressed, and the second transverse limiting block can move back and forth along the base guide rail groove along with the connecting screw rod. And the transverse limitation and the support of the printed board are completed by adjusting the gap of the transverse limiting block.
The thimble 5 comprises a fixed plate 51 and a supporting block 52, wherein the supporting block 52 is fixed on the fixed plate 51; the fixing plate 51 is provided with a third through hole 510, and the thimble 5 is fixed to the base 1 by inserting a screw through the third through hole 510 and into the screw mounting hole 102.
Preferably, for the non-magnetic sensitive printed board component, the ejector pin can be made of a magnetic material and fixed on the steel material base through adsorption, and the using efficiency of the carrier is improved.
The top supports the back of the printed board, and the warping and deformation of the printed board in the printing and pasting processes are reduced. The thimble is fixed on the base through the screw installation, and the thimble height should level with the step that sinks of vertical stopper and horizontal stopper after the installation. The number of the thimbles is not limited so as to meet the support requirement. The ejector pins are provided with sliding grooves, and the ejector pins can rotate and finely adjust front and back before the screw is locked so as to better match blank positions on the back of the printed board, so that damage to components on the back of the printed board is avoided, and the applicability of the carrier to double-sided mounting is ensured.
When the device is used, the printed board is placed by taking the first transverse limiting block as a datum point, and the second transverse limiting block is translated along the base connecting screw guide rail groove to limit and support the other edge of the printed board. And adjusting the distance between the longitudinal limit blocks according to the length of the printed board, and installing and locking the printed board by using screws. At the moment, the sunken steps of the longitudinal limiting block and the transverse limiting block can effectively limit and support the peripheral edge of the printed board. The quantity and the position of arranging of thimble are rationally set up according to the size and the rigidity of printed board, and the lock is died with the screw installation immediately after the fine setting position, and the thimble closely contacts with the blank position in printed board back, realizes the effective support of printing and paster process printed board, has avoided because of the printed board warp the solder paste printing figure that produces bad, component pastes the low, the components and parts damage scheduling problem emergence. For the printed board in the jointed board form, the ejector pin locking position is reasonably arranged to enable the ejector pin locking position to act on the connecting rib of the printed board, and a good supporting effect can be achieved.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "outer", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of 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, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "rotated," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A carrier for mounting circuit boards in various sizes, the carrier comprising: the device comprises a base (1), a longitudinal limiting block (2), a first transverse limiting block (3), a second transverse limiting block (4) and a thimble (5); guide rail grooves (101) are formed in the left side and the right side of the base, and a screw mounting hole array is arranged on the base (1) between the two guide rail grooves; a first through hole (201) is formed in the longitudinal limiting block (2), and a screw penetrates through the first through hole (201) in the longitudinal limiting block (2) and is fixed in a screw mounting hole (102) of the screw mounting hole array; a second through hole (301) is formed in the first transverse limiting block (3), the first transverse limiting block (3) is placed on the base (1), and a screw penetrates through the second through hole (301) and then is fixed in the screw mounting hole (102); the two ends of the second transverse limiting block (4) are respectively provided with a sliding block, and the sliding blocks at the two ends of the second transverse limiting block (4) are respectively arranged on the guide rail grooves (101) of the base (1), so that the second transverse limiting block (4) can slide up and down on the base (1); the thimble (5) is fixed in the screw mounting hole (102).
2. The carrier for mounting circuit boards in various sizes according to claim 1, wherein a hollow design is adopted in a portion between two guide rail grooves of the base (1), so that the portion is in a grid shape; wherein the screw mounting holes (102) are uniformly arranged on the grid framework.
3. The carrier for mounting circuit boards of various sizes as claimed in claim 1, wherein the longitudinal limiting block (2) is provided with at least 2 first through holes (201), the first through holes (201) are in a strip structure, and the through holes in the strip structure are parallel to each other.
4. The carrier for mounting circuit boards of various sizes as claimed in claim 3, wherein the first through holes of the strip structure are provided with arc-shaped grooves above, the grooves are matched with the nuts of the screws, so that the nuts of the screws are embedded into the longitudinal stoppers (2).
5. The circuit board mounting carrier suitable for multiple sizes according to claim 3, wherein the longitudinal limiting block (2) is further provided with a sunken step for positioning and supporting the printed board.
6. The carrier for mounting circuit boards according to claim 1, wherein the second lateral stopper (4) is provided with a slider fixing groove, and the slider is fixed on the second lateral stopper (4) through the slider fixing groove after passing through the guide rail groove (101).
7. The carrier as claimed in claim 6, wherein the slider comprises a connecting screw (401) and a spring (402); the connecting screw rod (401) comprises a screw cap (4011) and a threaded rod (4012), and the spring (402) is sleeved on the threaded rod (4012) of the connecting screw rod (401); a threaded rod (4012) of the connecting screw rod (401) penetrates through the guide rail groove (101) and is embedded into a sliding block fixing groove of the second transverse limiting block (4), so that the second transverse limiting block (4) can slide on the guide rail groove (101).
8. The carrier for mounting circuit boards in various sizes according to claim 1, wherein the ejector pin (5) comprises a fixed plate (51) and a supporting block (52), the supporting block (52) is fixed on the fixed plate (51); a third through hole (510) is formed in the fixing plate (51), and a screw penetrates through the third through hole (510) and is embedded into the screw mounting hole (102), so that the ejector pin (5) is fixed on the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222809285.6U CN218735281U (en) | 2022-10-25 | 2022-10-25 | Circuit board pastes dress carrier suitable for multiple size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222809285.6U CN218735281U (en) | 2022-10-25 | 2022-10-25 | Circuit board pastes dress carrier suitable for multiple size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218735281U true CN218735281U (en) | 2023-03-24 |
Family
ID=85588845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222809285.6U Active CN218735281U (en) | 2022-10-25 | 2022-10-25 | Circuit board pastes dress carrier suitable for multiple size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218735281U (en) |
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2022
- 2022-10-25 CN CN202222809285.6U patent/CN218735281U/en active Active
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