CN220163433U - Solder paste printing device - Google Patents
Solder paste printing device Download PDFInfo
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- CN220163433U CN220163433U CN202321661353.7U CN202321661353U CN220163433U CN 220163433 U CN220163433 U CN 220163433U CN 202321661353 U CN202321661353 U CN 202321661353U CN 220163433 U CN220163433 U CN 220163433U
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- workpiece
- lifting mechanism
- solder paste
- printing
- objective table
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- 229910000679 solder Inorganic materials 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 175
- 238000007790 scraping Methods 0.000 claims description 13
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 abstract description 9
- 238000010079 rubber tapping Methods 0.000 abstract description 6
- 238000005476 soldering Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Screen Printers (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The utility model relates to the technical field of soldering equipment, in particular to a solder paste printing device; comprises a frame, a moving mechanism, a lifting mechanism, an objective table, a printing mechanism and a positioning mechanism; the frame is fixedly provided with a moving mechanism which is used for controlling the lifting mechanism and the objective table to move horizontally; the movable end of the moving mechanism is connected with a lifting mechanism, the free end of the lifting mechanism is connected with an objective table, and the lifting mechanism is used for controlling the objective table to move in the vertical direction; according to the utility model, the positioning mechanism is arranged between the printing screen and the workpiece, the tapping and the conveying mechanism are firstly used for conveying the tapping and the conveying mechanism to the processing station, and then the positioning mechanism is used for positioning the tapping and the conveying mechanism, so that the workpiece is positioned at the accurate printing position, and the solder paste can more accurately fall on the hole site of the workpiece when the solder paste is printed at the back, and the quality of the solder paste printing is further improved.
Description
Technical Field
The utility model relates to the technical field of soldering equipment, in particular to a solder paste printing device.
Background
A solder paste printing apparatus is a device that prints solder paste or flux paste on a chip or substrate pad. In the prior art, before solder paste printing is performed, the workpiece needs to be positioned, and the workpiece is positioned by the positioning mechanism and then conveyed to the processing position for processing in the conventional method, however, the method has the following problems: the positioning and conveying are performed firstly, so that the situation that the position deviation of a workpiece occurs when the workpiece is arranged on a processing station is easily caused, the quality of the printing process is affected, namely, solder paste does not correspond to hole sites on a substrate bonding pad (workpiece), and the defective rate is increased.
Based on the above problems, we propose a solder paste printing apparatus.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the solder paste printing device, which can realize accurate positioning operation of a workpiece after improvement, so that solder paste can more accurately fall on a hole site of the workpiece, and further the quality of solder paste printing is improved.
The technical scheme of the utility model is as follows:
a solder paste printing device comprises a frame, a moving mechanism, a lifting mechanism, an objective table, a printing mechanism and a positioning mechanism;
the frame is fixedly provided with a moving mechanism which is used for controlling the lifting mechanism and the objective table to move horizontally; the movable end of the moving mechanism is connected with a lifting mechanism, the free end of the lifting mechanism is connected with an objective table, and the lifting mechanism is used for controlling the objective table to move in the vertical direction;
the machine frame is also provided with a printing mechanism, the printing mechanism comprises a printing screen, and the printing screen is used for printing solder paste on the workpiece;
the machine frame is also provided with a positioning mechanism, the positioning mechanism comprises a light source, a prism and a camera, the light source irradiates light on a printing screen or a workpiece, and the prism is used for refracting the reflected light of the workpiece or the printing screen into the camera;
the prism is of a rectangular structure, an upper mirror body and a lower mirror body are symmetrically arranged in the prism, the upper mirror body and the lower mirror body are of right-angled triangle structures, and a first light source and a second light source are symmetrically arranged outside the prism, so that light rays of the first light source irradiating a printing screen or a workpiece can be refracted into a camera through the upper mirror body or the lower mirror body; the light rays of the second light source irradiating the printing screen or the workpiece can be refracted into the camera through the upper lens body or the lower lens body, and the first light source and the second light source are used sequentially.
Further, the lifting mechanism comprises a first lifting mechanism and a second lifting mechanism; the movable end of the moving mechanism is connected with a first lifting mechanism, the free end of the first lifting mechanism is connected with a second lifting mechanism, and the first lifting mechanism and the second lifting mechanism are used for controlling the object stage to move in the vertical direction.
Further, a motor is arranged on the first lifting mechanism, the motor is connected with a threaded connector through a screw rod, and the screw rod drives the threaded connector to move back and forth when rotating; the free end of the threaded connector is fixedly connected with a wedge-shaped part which can drive the objective table to lift, and the wedge-shaped part is in sliding connection with the rack, so that the wedge-shaped part moves along the vertical direction.
Further, the first lifting mechanism is further provided with a lifting platform, the wedge-shaped part is surrounded by the lifting platform, the lifting platform can drive the second lifting mechanism to lift, the wedge-shaped part is divided into two parts, one part is connected with the threaded connector, and the other part is connected with the lifting platform; the second lifting mechanism comprises a servo motor and a screw rod, and the servo motor is connected with the objective table through the screw rod, so that the objective table moves along the vertical direction.
Further, the printing mechanism further comprises a scraping plate, the frame is further provided with a scraping plate for scraping solder paste on the printing screen, and the scraping plate is provided with a driving mechanism for driving the scraping plate to move in the horizontal direction and the vertical direction.
Further, a conveying mechanism is further arranged on the frame and used for conveying the workpiece to the objective table.
Further, two sides of the conveying mechanism along the length direction are respectively provided with a conveying belt; the object stage is positioned between the conveyor belts at the two sides.
Further, a clamping mechanism for clamping the workpiece is further arranged on the frame, and a driving device capable of controlling the clamping head to move in the horizontal direction and the vertical direction is arranged on the clamping mechanism.
Further, the positioning mechanism is installed between the printing screen and the workpiece.
Further, a vacuum source for vacuumizing the objective table is arranged on the rack; the objective table is provided with a negative pressure hole, and the negative pressure hole is communicated with a vacuum source.
The beneficial effects of the utility model are as follows:
according to the utility model, the positioning mechanism is arranged between the printing screen and the workpiece, the tapping and the conveying mechanism are firstly used for conveying the tapping and the conveying mechanism to the processing station, and then the positioning mechanism is used for positioning the tapping and the conveying mechanism, so that the workpiece is positioned at the accurate printing position, and the solder paste can more accurately fall on the hole site of the workpiece when the solder paste is printed at the back, and the quality of the solder paste printing is further improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the connecting and positioning mechanism of the present utility model;
FIG. 3 is a schematic view of a first lifting mechanism according to the present utility model;
fig. 4 is a view showing the effect of the positioning mechanism of the present utility model.
In the figure, 1, a moving mechanism; 2. a lifting mechanism; 21. a first lifting mechanism; 211. a motor; 212. a threaded connector; 213. a wedge-shaped member; 214. a lifting platform; 22. a second lifting mechanism; 3. an objective table; 4. a printing mechanism; 41. printing a screen; 42. a scraper; 43. a driving mechanism; 5. a positioning mechanism; 51. a prism; 511. an upper mirror body; 512. a lower mirror body; 52. a camera; 53. a first light source; 54. a second light source; 6. a conveying mechanism; 61. a conveyor belt; 62. a workpiece; 7. and a clamping mechanism.
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
as shown in fig. 1-4, a solder paste printing device comprises a frame, a moving mechanism 1, a lifting mechanism 2, a stage 3, a printing mechanism 4 and a positioning mechanism 5;
the frame is fixedly provided with a moving mechanism 1, and the moving mechanism 1 is used for controlling the lifting mechanism 2 and the objective table 3 to move in the horizontal direction; the movable end of the moving mechanism 1 is connected with a lifting mechanism 2, the free end of the lifting mechanism 2 is connected with an objective table 3, and the lifting mechanism 2 is used for controlling the objective table 3 to move in the vertical direction; it will be appreciated that when the positioning mechanism 5 positions the workpiece 62, if the position of the workpiece 62 deviates, the horizontal direction and the vertical direction can be adjusted by the moving mechanism 1 and the lifting mechanism 2 at this time, so that the stage 3 and the workpiece 62 are located at the accurate position for printing, and the solder paste can more accurately fall on the hole site of the workpiece 62 when the solder paste is printed later, thereby improving the quality of the solder paste printing.
A printing mechanism 4 is also mounted on the frame, the printing mechanism 4 comprises a printing screen 41, and the printing screen 41 is used for printing solder paste on a workpiece 62; it will be appreciated that the printing screen 41 is provided with printing holes corresponding to the positions of the work 62, through which the solder paste printing operation can be effectively performed.
The frame is also provided with a positioning mechanism 5, the positioning mechanism 5 comprises a light source, a prism 51 and a camera 52, the light source irradiates light on the printing screen 41 or the workpiece 62, and the prism 51 is used for refracting reflected light of the workpiece 62 or the printing screen 41 into the camera 52. By being provided with the positioning mechanism 5, the principle of the positioning mechanism 5 is as follows: the light source irradiates light on the printing screen 41 or the workpiece 62, then the light on the printing screen 41 or the workpiece 62 is reflected to the prism 51, the light is refracted into the camera 52 through the prism 51, whether the positions on the printing screen 41 and the workpiece 62 correspond or not is compared through the camera 52, and if the positions are accurate, the printing operation can be performed; in the work, the workpiece 62 is mainly conveyed to the processing station, and then the positioning operation is performed through the positioning mechanism 5, so that the accurate positioning of the workpiece 62 can be realized;
as shown in fig. 4, the prism 51 is in a rectangular structure, an upper mirror 511 and a lower mirror 512 are symmetrically disposed inside the prism 51, the upper mirror 511 and the lower mirror 512 are both in a right triangle structure, a first light source 53 and a second light source 54 are symmetrically disposed outside the prism 51, so that light rays of the first light source 53 irradiating the printing screen 41 or the workpiece 62 can be refracted into the camera 52 through the upper mirror 511 or the lower mirror 512, so that light rays of the second light source 54 irradiating the printing screen 41 or the workpiece 62 can be refracted into the camera 52 through the upper mirror 511 or the lower mirror 512, and the first light source 53 and the second light source 54 are sequentially used. It should be noted that, when the first light source 53 and the second light source 54 are used, they need to be used in sequence, when the first light source 53 works, the second light source 54 is turned off, and when the second light source 54 works, the first light source 53 is turned off, so that imaging can be performed in sequence in the camera 52, and mutual interference of the two imaging is avoided.
As a preferred embodiment; the lifting mechanism 2 comprises a first lifting mechanism 21 and a second lifting mechanism 22; the movable end of the moving mechanism 1 is connected with a first lifting mechanism 21, the free end of the first lifting mechanism 21 is connected with a second lifting mechanism 22, and the first lifting mechanism 21 and the second lifting mechanism 22 are used for controlling the object stage 3 to move in the vertical direction. It will be appreciated that the first lifting mechanism 21 and the second lifting mechanism 22 cooperate with each other, the first lifting mechanism 21 is a main lifting mechanism, the second lifting mechanism 22 is a sub-lifting mechanism, the first lifting mechanism 21 can be used for lifting the workpiece 62 by starting to lift the stage 3, the second lifting mechanism 22 can be used for lifting the stage 3 to attach the workpiece 62 after fixing the workpiece 62, and finally the first lifting mechanism 21 can be used for lifting and attaching the workpiece 62 to the bottom surface of the printing screen 41.
As a preferred embodiment; the first lifting mechanism 21 is provided with a motor 211, the motor 211 is connected with a threaded connector 212 through a screw rod, and the screw rod drives the threaded connector 212 to move back and forth when rotating; the free end of the threaded connector 212 is fixedly connected with a wedge-shaped part 213 capable of driving the object stage 3 to lift, and the wedge-shaped part 213 is in sliding connection with the rack, so that the wedge-shaped part 213 moves along the vertical direction; the first lifting mechanism 21 is further provided with a lifting platform 214, the wedge-shaped part 213 is surrounded by the lifting platform 214, the lifting platform 214 can drive the second lifting mechanism 22 to lift, the wedge-shaped part 213 is divided into two parts, one part is connected with the threaded connector 212, and the other part is connected with the lifting platform 214; the second lifting mechanism 22 comprises a servo motor and a screw rod, and the servo motor is connected with the objective table 3 through the screw rod, so that the objective table 3 moves along the vertical direction. The wedge-shaped component 213 is driven to lift by the motor 211 and the threaded connector 212, the lifting precision is high, and the first lifting mechanism 21 arranged at the bottom can accurately lift the object stage 3 and the workpiece 62.
As a preferred embodiment; the printing mechanism 4 further comprises a scraper 42, the rack is further provided with the scraper 42 for scraping solder paste on the printing screen 41, and the scraper 42 is provided with a driving mechanism 43 for driving the scraper 42 to move in the horizontal direction and the vertical direction. It will be appreciated that the densely arranged solder balls are mounted inside the squeegee 42 (the squeegee 42 is in the prior art), and under the action of the driving mechanism 43, the squeegee 42 can be driven to scrape the solder balls horizontally on the top surface of the printing screen 41 and directly print on the workpiece 62, thereby completing the solder printing work.
As a preferred embodiment; a conveying mechanism 6 is also arranged on the frame, and the conveying mechanism 6 is used for conveying the workpiece 62 to the objective table 3; the conveying mechanism 6 is respectively provided with a conveying belt 61 on two sides along the length direction; the stage 3 is located between the conveyor belts 61 on both sides. It will be appreciated that when the workpiece 62 arrives at the processing station through the conveying mechanism 6, that is, the workpiece 62 corresponds to the position of the stage 3 (basically corresponds to the position and is adjusted by the moving mechanism 1 and the lifting mechanism 2, then the lifting mechanism 2 drives the stage 3 to lift up, so that the workpiece 62 is lifted up, and the subsequent positioning operation is facilitated after the workpiece 62 is lifted up.
As a preferred embodiment; the machine frame is also provided with a clamping mechanism 7 for clamping the workpiece 62, and the clamping mechanism 7 is provided with a driving device capable of controlling the clamping head to move horizontally and vertically. The clamping mechanism 7 mainly has the effects that the workpiece 62 is fixed firstly, then the object stage 3 is moved upwards through the lifting mechanism 2, the workpiece 62 can be effectively clung to the object stage 3 (the object stage 3 is moved upwards to tightly prop up the workpiece 62), gaps between the object stage 3 and the workpiece 62 are eliminated, the workpiece 62 is conveniently sucked by subsequent vacuumizing, and therefore the firmness of the workpiece 62 in the printing process is ensured, and the printing machine is more reliable and stable.
As a preferred embodiment; the positioning mechanism 5 is mounted between the printing screen 41 and the workpiece 62. The purpose of this design is: the light source on the positioning mechanism 5 can effectively irradiate the printing screen 41 and the workpiece 62, reflect the corresponding light to the prism 51, and refract the light into the camera 52 to realize positioning operation.
As a preferred embodiment; the frame is also provided with a vacuum source for vacuumizing the objective table 3; the objective table 3 is provided with a negative pressure hole which is communicated with a vacuum source. The function is as follows: the object stage 3 is vacuumized, the workpiece 62 is effectively sucked, the firmness of the workpiece 62 in the printing process is ensured, and the printing process is more reliable and stable.
The working principle of the utility model is as follows: firstly, conveying a workpiece 62 to a processing station through a conveying mechanism 6, then, adjusting the position of a stage 3 through a moving mechanism 1 and a lifting mechanism 2 so that the stage 3 can support and eject the workpiece 62 upwards, at the moment, positioning the workpiece 62 through a positioning mechanism 5, if the workpiece 62 is accurate, entering the next step, and if the workpiece 62 is inaccurate, adjusting the position of the workpiece 62 through the moving mechanism 1 and the lifting mechanism 2; then, the workpiece 62 is clamped by the clamping mechanism 7, the lifting mechanism 2 is started, the lifting mechanism 2 can push the objective table 3 upwards to tightly press the workpiece 62 (because a gap exists between the objective table 3 and the workpiece 62 in the process of jacking the workpiece 62 by the objective table 3, if vacuum is directly pumped at the moment, the gap between the objective table 3 and the workpiece 62 can not be tightly sucked by the objective table 3), at the moment, a vacuum source is started, the workpiece 62 is effectively sucked by the objective table 3, then the clamping mechanism 7 is reset (by a driving device on the clamping mechanism 7), then the workpiece 62 is moved upwards by the lifting mechanism 2 until the workpiece is stuck to the bottom surface of the printing screen 41, at the moment, the driving mechanism 43 on the scraping plate 42 acts, so that the scraping plate 42 can horizontally scrape solder paste on the top surface of the printing screen 41 and directly print the solder paste on the workpiece 62, and then the solder paste printing work is completed. It should be noted that the main problems in the prior art are: positioning and conveying are performed firstly, so that the situation that the position deviation of the workpiece 62 occurs when the workpiece is positioned on a processing position is easily caused, and the quality of the printing process is affected; so after the improvement of the utility model, the workpiece 62 is conveyed firstly and then accurately positioned (and the positioning effect of the positioning mechanism 5 is better), so that the workpiece 62 can be ensured to be positioned at the accurate printing position, and the solder paste can more accurately fall on the hole position of the workpiece 62 when the solder paste is printed later, thereby improving the quality of the solder paste printing.
The above embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.
Claims (10)
1. A solder paste printing device, characterized in that: comprises a frame, a moving mechanism, a lifting mechanism, an objective table, a printing mechanism and a positioning mechanism;
the frame is fixedly provided with a moving mechanism which is used for controlling the lifting mechanism and the objective table to move horizontally; the movable end of the moving mechanism is connected with a lifting mechanism, the free end of the lifting mechanism is connected with an objective table, and the lifting mechanism is used for controlling the objective table to move in the vertical direction;
the machine frame is also provided with a printing mechanism, the printing mechanism comprises a printing screen, and the printing screen is used for printing solder paste on the workpiece;
the machine frame is also provided with a positioning mechanism, the positioning mechanism comprises a light source, a prism and a camera, the light source irradiates light on a printing screen or a workpiece, and the prism is used for refracting the reflected light of the workpiece or the printing screen into the camera;
the prism is of a rectangular structure, an upper mirror body and a lower mirror body are symmetrically arranged in the prism, the upper mirror body and the lower mirror body are of right-angled triangle structures, and a first light source and a second light source are symmetrically arranged outside the prism, so that light rays of the first light source irradiating a printing screen or a workpiece can be refracted into a camera through the upper mirror body or the lower mirror body; the light rays of the second light source irradiating the printing screen or the workpiece can be refracted into the camera through the upper lens body or the lower lens body, and the first light source and the second light source are used sequentially.
2. A solder paste printing apparatus according to claim 1, wherein: the lifting mechanism comprises a first lifting mechanism and a second lifting mechanism; the movable end of the moving mechanism is connected with a first lifting mechanism, the free end of the first lifting mechanism is connected with a second lifting mechanism, and the first lifting mechanism and the second lifting mechanism are used for controlling the object stage to move in the vertical direction.
3. A solder paste printing apparatus according to claim 2, wherein: the first lifting mechanism is provided with a motor, the motor is connected with a threaded connector through a screw rod, and the screw rod drives the threaded connector to move back and forth when rotating; the free end of the threaded connector is fixedly connected with a wedge-shaped part which can drive the objective table to lift, and the wedge-shaped part is in sliding connection with the rack, so that the wedge-shaped part moves along the vertical direction.
4. A solder paste printing apparatus according to claim 3, wherein: the first lifting mechanism is also provided with a lifting platform, the wedge-shaped part is surrounded by the lifting platform, the lifting platform can drive the second lifting mechanism to lift, the wedge-shaped part is divided into two parts, one part is connected with the threaded connector, and the other part is connected with the lifting platform; the second lifting mechanism comprises a servo motor and a screw rod, and the servo motor is connected with the objective table through the screw rod, so that the objective table moves along the vertical direction.
5. A solder paste printing apparatus according to claim 1, wherein: the printing mechanism further comprises a scraping plate, the frame is further provided with a scraping plate for scraping solder paste on the printing screen, and the scraping plate is provided with a driving mechanism for driving the scraping plate to move in the horizontal direction and the vertical direction.
6. A solder paste printing apparatus according to claim 1, wherein: and the machine frame is also provided with a conveying mechanism which is used for conveying the workpiece to the objective table.
7. The solder paste printing apparatus as claimed in claim 6, wherein: the conveying mechanism is respectively provided with a conveying belt along two sides of the length direction; the object stage is positioned between the conveyor belts at the two sides.
8. A solder paste printing apparatus according to claim 1, wherein: the machine frame is also provided with a clamping mechanism for clamping the workpiece, and the clamping mechanism is provided with a driving device capable of controlling the clamping head to move horizontally and vertically.
9. A solder paste printing apparatus according to claim 1, wherein: the positioning mechanism is arranged between the printing screen and the workpiece.
10. A solder paste printing apparatus according to claim 1, wherein: the frame is also provided with a vacuum source for vacuumizing the objective table; the objective table is provided with a negative pressure hole, and the negative pressure hole is communicated with a vacuum source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321661353.7U CN220163433U (en) | 2023-06-28 | 2023-06-28 | Solder paste printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321661353.7U CN220163433U (en) | 2023-06-28 | 2023-06-28 | Solder paste printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220163433U true CN220163433U (en) | 2023-12-12 |
Family
ID=89066795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321661353.7U Active CN220163433U (en) | 2023-06-28 | 2023-06-28 | Solder paste printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220163433U (en) |
-
2023
- 2023-06-28 CN CN202321661353.7U patent/CN220163433U/en active Active
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