Detection device and method for SMT template steel mesh

Abstract

The invention relates to the technical field of detection devices, and provides a device and a method for detecting an SMT template steel mesh, which adopt an independent space, can reduce the influence of external factors on the detection of the SMT template steel mesh, also can conveniently control the surrounding environment of the SMT template steel mesh, further enrich the detection range of the SMT template steel mesh, and adopt a coloring form to improve the detection accuracy of the SMT template steel mesh. The SMT template steel mesh defect detection device comprises a base and a detection system, a space creating structure is installed on the base, the detection system comprises an electric driving part, the electric driving part is installed in the space creating structure, a sliding adjusting frame is installed on the electric driving part, a machine vision sensor is installed at the bottom end of the sliding adjusting frame, and a machine vision sensor is installed on the machine vision sensor. A modulation frame is rotationally connected to the sliding adjustment frame, an electric adjustment rod is installed on the sliding adjustment frame, an adjustment rod of the electric adjustment rod is hinged to the modulation frame, a crossing frame is rotationally connected into the modulation frame, and a material distribution pipe and a material scraping rod are installed on the crossing frame.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a detection device and method for an SMT template steel mesh. Background Art

[0002] As we all know, the main function of SMT stencil is to assist in solder paste deposition. Its purpose is to accurately transfer the correct amount of solder paste to the exact location on the blank PCB. The thickness of common SMT stencils ranges from 0.1mm to 0.25mm, and the common apertures are 0.2mm, 0.3mm, or 0.4mm. Based on this, it can be judged that the structure of SMT stencils is relatively precise. For such precise structures, their structural characteristics are easily affected by external factors. Therefore, in order to measure the quality of SMT stencils, we propose a detection device and method for SMT stencils.

[0003] After searching, the Chinese patent application number CN201521052118.5 discloses a mobile phone PCB board SMT patch steel mesh template visual inspection device, which is roughly described as including a base, a bracket, a light source, a lens and a photosensitive device. The top of the vertical bracket is fixedly connected to the horizontal bracket, and the other end of the horizontal bracket is fixedly connected to the lens holder. The upper surface of the lens is fixedly provided with a light source, and the bottom end of the vertical bracket is fixedly connected to the side wall of the base. The first stage is a transparent device, and the upper surface of the second stage is fixedly provided with a photosensitive device. A plurality of positioning devices are fixedly provided on the upper surface of the first stage, and an alarm is fixedly provided under the second stage. When in use, a steel mesh and a filling part corresponding to the opening of the steel mesh are placed on the first stage to form an opaque layer, and the light irradiation of the light source and the sensitivity of the photosensitive device to light are utilized. In order to realize the inspection of the steel mesh, the Chinese patent application number CN202323105990.9 discloses a detection device for the SMT template steel mesh, which is roughly described as including four support seats, the tops of the four support seats are fixedly connected to the support frame, the tops of the support frames are fixedly connected to four support columns, the front of the support seats are provided with casters, the tops of the four support columns are fixedly connected to the detection table, and the outer walls of the four support columns are provided with partitions. When in use, the vertical height can be effectively adjusted by setting the mutual cooperation of the telescopic rod and the fixed sleeve, and the rotating sleeve can be rotated to connect it to the top of the telescopic rod, so that it can be rotated to adjust its horizontal position as needed. The mutual cooperation between the telescopic plate and the extension sleeve can effectively extend the telescopic plate, making it convenient for the magnifying glass inside to be aimed at the steel mesh for inspection.

[0004] Although the above-mentioned existing technical solutions can form a supporting inspection for SMT template steel mesh, its inspection operation is to form direct inspection through a magnifying glass and a lens. Combined with the actual situation of the SMT template steel mesh, most of them are metal plate structures of a single color. For example, for the SMT template steel mesh made of stainless steel, its surface usually presents a metallic silver-gray color. Therefore, the single silver-gray color makes it difficult to clearly distinguish the defective areas on it from other areas. Therefore, it is difficult to distinguish the defective areas on the SMT template steel mesh by simply using a magnifying glass and a lens for direct inspection, and the detection reliability needs to be further improved. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a detection device and method for SMT template steel mesh, which adopts an independent space to reduce the impact of external factors on the detection of SMT template steel mesh, and also facilitates the control of the surrounding environment of the SMT template steel mesh, thereby enriching the detection range of the SMT template steel mesh, and adopts the form of coloring to improve the identifiability of defects on the SMT template steel mesh, and has better detection reliability and is more practical.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A detection device for an SMT template steel mesh, comprising a base and a detection system, wherein a space creating structure is installed on the base, and the detection system comprises an electric drive component, wherein the electric drive component is installed in the space creating structure, and a sliding frame is installed on the electric drive component, and a machine vision sensor is installed at the bottom end of the sliding frame, and a rotation frame is rotatably connected to the sliding frame, and an electric adjustment rod is installed on the sliding frame, and the adjustment rod of the electric adjustment rod is hinged to the rotation frame, and a crossing frame is rotatably connected in the rotation frame, and a fabric tube and a scraper rod are installed on the crossing frame, and a fabric strip hole is opened on the fabric tube, and a cutting sleeve is fixedly connected in the rotation frame, and the cutting sleeve matches the fabric strip hole, and a first servo motor is installed on the rotation frame, and the first servo motor is used for rotational drive of the crossing frame.

[0007] Preferably, the space creating structure includes an outer frame and a follower frame, the outer frame is fixedly connected to the base, a lifting platform is slidably connected in the outer frame, a hollow cavity is provided in the lifting platform, a plurality of gas distribution holes are provided at the top of the lifting platform, and the plurality of gas distribution holes are all connected with the hollow cavity, an electric lifting rod is installed in the base, the lifting rod of the electric lifting rod is connected to the lifting platform, the lifting platform is connected with a first quick-connect pipe, a second quick-connect pipe and a third quick-connect pipe, the follower frame is rotatably connected to the outer frame, the electric drive component is installed in the follower frame, a sheet metal cover door is installed outside the follower frame, a linkage component is installed between the outer frame and the follower frame, and the linkage component is controlled by the lifting platform.

[0008] Preferably, the linkage assembly includes a follower link and two external push bars, the follower link is fixedly connected to the follower frame, the two external push bars are fixedly connected to the lifting platform, a through shaft is provided in the strip-shaped opening on the follower link, and the two external push bars are connected to the through shaft.

[0009] Preferably, an inner top recessed groove is provided on the outer frame, and a horizontal air pipe is rotatably connected in the inner top recessed groove. The horizontal air pipe is connected to a protruding quick-connect pipe, and the protruding quick-connect pipe passes through the outer frame and extends to the outside of the outer frame. The horizontal air pipe rotates in conjunction with the rotation of the follower frame. The horizontal air pipe is equipped with a horizontal recovery pipe, and the horizontal recovery pipe is fixedly connected to the lifting platform. The horizontal recovery pipe is connected to a through quick-connect pipe, and the through quick-connect pipe passes through the lifting platform and extends to the bottom of the lifting platform.

[0010] Preferably, the follower frame is fixedly connected to a sector-shaped external gear, the sector-shaped external gear is meshed with a transmission gear, and the transmission gear is connected to the horizontal air pipe.

[0011] Preferably, an eccentric cylinder is fixedly connected to the outside of the transmission gear, a connecting spring is fixedly connected to the inside of the eccentric cylinder, and the connecting spring is fixedly connected to the horizontal air pipe.

[0012] Preferably, the electric drive component includes a threaded rod, a second servo motor and two optical bars, and the threaded rod, the second servo motor and the two optical bars are all installed in the follower frame. The second servo motor is used for rotational driving of the threaded rod. A threaded sleeve is threadedly connected to the threaded rod, and the threaded sleeve is fixedly connected to the sliding adjustment frame. Two sliding holes are provided on the sliding adjustment frame, and the two optical bars are respectively slidably matched with the two sliding holes.

[0013] Preferably, a driving gear is mounted on the output shaft of the first servo motor and the output shaft of the second servo motor, and a driven gear is mounted on the threaded rod and the spanning frame, and the two driving gears are respectively engaged with the two driven gears.

[0014] Preferably, pressure sensors are installed at the four corners of the follower frame. When the follower frame rotates and closes relative to the peripheral frame, the four pressure sensors all form readings.

[0015] A detection method for a detection device of an SMT template steel mesh comprises the following steps: S1. Before use, first install the control circuit for the space structure, electric drive unit, machine vision sensor, electric adjustment rod, and first servo motor. Then, install a pigment supply pipe connected to the outside world for the fabric pipe. Next, install a processing computer for the machine vision sensor. The processing computer uses software compatible with the machine vision sensor to process the information collected by the machine vision sensor. S2. During the inspection operation, the space-building structure is first operated to realize the relative placement of the SMT stencil to be inspected, and then the space-building structure is controlled to form a closed space around the placed SMT stencil to be inspected. Then, the electric drive component is controlled to operate to realize the position adjustment of the sliding frame, and then the electric adjustment rod is operated to realize the rotation and drop of the adjustment frame relative to the sliding frame, so that the spanning frame and the SMT stencil to be inspected are brought close to each other; S3. When the spanning frame and the SMT stencil to be inspected are brought close to each other, the first servo motor is powered on to realize rotation adjustment of the spanning frame, so that the fabric strip hole on the fabric tube rotates away from the cutting sleeve. When the fabric strip hole rotates away from the cutting sleeve, the external pigment supply tube can form pigment distribution relative to the SMT stencil to be inspected through the fabric strip hole. After the pigment distribution is completed, the first servo motor is powered on to realize rotation adjustment of the spanning frame, and controls the fabric strip hole to rotate again and be retracted into the cutting sleeve. S4. Then control the first servo motor and the electric adjustment rod to run synchronously, so that the scraper rod is in close contact with the SMT template steel mesh to be inspected, and then the space creation structure is matched with the SMT template steel mesh to be inspected to form adsorption positioning, and the electric drive component is operated to realize the motion drive of the scraper rod relative to the SMT template steel mesh to be inspected, so as to scrape the paint on the SMT template steel mesh to be inspected, so that the paint is flat on the SMT template steel mesh to be inspected, and the machine vision sensor is matched with the flat paint on the SMT template steel mesh to be inspected to form a plane quality detection of the SMT template steel mesh to be inspected.

[0016] Compared with the prior art, the present invention provides a device and method for detecting SMT template steel mesh, which has the following beneficial effects: (1) In the present invention, through the design of the detection system, the SMT template steel mesh can be matched to form a corresponding detection structure, and the coloring form is adopted to improve the identifiability of defects on the SMT template steel mesh, and the detection reliability is better.

[0017] (2) In the present invention, a corresponding support and storage structure is provided for the SMT template steel mesh through the matching of the space creation structure, and an independent space is used to reduce the impact of external factors on the detection of the SMT template steel mesh. At the same time, it is also convenient to control the surrounding environment of the SMT template steel mesh, thereby enriching the detection range of the SMT template steel mesh and making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle; Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at B in the middle; Figure 4 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting platform of the present invention in a raised state; Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at C in the middle; Figure 7 For the present invention Figure 5 Schematic diagram of the local enlarged structure at D in the middle; Figure 8 For the present invention Figure 5 Schematic diagram of the local enlarged structure at E in the middle; Figure 9 This is a schematic diagram of the three-dimensional structure of the adjustment frame and the electric adjustment rod of the present invention; Figure 10 It is a schematic diagram of the three-dimensional structure of the lifting platform of the present invention in a raised state from a rear side view; Figure 11 This is a schematic diagram of the exploded three-dimensional structure of the adjustment frame, the electric adjustment rod and the spanning frame of the present invention; Figure 12 It is a partially cutaway perspective structural diagram of the crossover frame, the material distribution pipe, the material scraping rod, etc. of the present invention; Figure 13 It is a schematic diagram of the three-dimensional structure of the base and the peripheral frame of the present invention in relative coordination; Figure 14 A schematic diagram of the three-dimensional structure of the base and the peripheral frame of the present invention in another angle; Figure 15 It is a schematic diagram of the three-dimensional structure of the whole follower connecting frame, the external push bar and the through shaft of the present invention.

[0019] In the figure: 1. Base; 2. Sliding frame; 3. Rotating frame; 4. Electric adjustment rod; 5. Crossing frame; 6. Fabric pipe; 7. Scraping rod; 8. Fabric strip hole; 9. Cutting sleeve; 10. First servo motor; 11. Peripheral frame; 12. Follow-up frame; 13. Lifting platform; 14. Fabric gas hole; 15. Electric lifting rod; 16. First quick-connect pipe; 17. Second quick-connect pipe; 18. Third quick-connect pipe; 19. Sheet metal cover door; 20. Follow-up connecting frame; 21. External push rod; 22. Through shaft; 23. Inner top recessed groove; 24. Horizontal air pipe; 25. Extended quick-connect pipe; 26. Horizontal recovery pipe; 27. Through quick-connect pipe; 28. Fan-shaped external gear; 29. ​​Transmission gear; 30. Eccentric cylinder; 31. Connecting spring; 32. Threaded rod; 33. Second servo motor; 34. Light bar; 35. Threaded sleeve; 36. Drive gear; 37. Driven gear; 38. Pressure sensor. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] For examples, see Figures 1-15, a detection device for an SMT template steel mesh includes a base 1 and a detection system. A space-building structure is installed on the base 1. The detection system includes an electric drive component, which is installed in the space-building structure. A sliding frame 2 is installed on the electric drive component. A machine vision sensor is installed at the bottom of the sliding frame 2. A rotation frame 3 is rotatably connected to the sliding frame 2. An electric adjustment rod 4 is installed on the sliding frame 2. The adjustment rod of the electric adjustment rod 4 is hinged to the rotation frame 3. A crossing frame 5 is rotatably connected in the rotation frame 3. A fabric tube 6 and a scraper rod 7 are installed on the crossing frame 5. A fabric strip hole 8 is provided on the fabric tube 6. A cutting sleeve 9 is fixedly connected in the rotation frame 3. The cutting sleeve 9 matches the fabric strip hole 8. A first servo is installed on the rotation frame 3. Motor 10, the first servo motor 10 is used for the rotational drive of the spanning frame 5. Through the design of the detection system, it can match the SMT template steel mesh to form a corresponding detection structure. The coloring form is adopted to improve the identifiability of defects on the SMT template steel mesh, and the detection reliability is better. The electric drive component includes a threaded rod 32, a second servo motor 33 and two optical bars 34. The threaded rod 32, the second servo motor 33 and the two optical bars 34 are all installed in the follower frame 12. The second servo motor 33 is used for the rotational drive of the threaded rod 32. A threaded sleeve 35 is threadedly connected to the threaded rod 32. The threaded sleeve 35 is fixedly connected to the sliding frame 2. Two sliding holes are provided on the sliding frame 2, and the two optical bars 34 are respectively slidably matched with the two sliding holes.

[0022] It should be further explained that the space creation structure includes an outer frame 11 and a follower frame 12. The outer frame 11 is fixedly connected to the base 1. A lifting platform 13 is slidably connected to the outer frame 11. A hollow cavity is provided in the lifting platform 13. A plurality of gas distribution holes 14 are provided on the top of the lifting platform 13. The plurality of gas distribution holes 14 are all connected to the hollow cavity. An electric lifting rod 15 is installed in the base 1. The lifting rod of the electric lifting rod 15 is connected to the lifting platform 13. The lifting platform 13 is connected with a first quick-connect pipe 16, a second quick-connect pipe 17 and a third quick-connect pipe 18. The follower frame 12 is fixedly connected to the outer frame 11. A lifting platform 13 is slidably connected to the outer frame 11. A hollow cavity is provided in the lifting platform 13. A plurality of gas distribution holes 14 are provided on the top of the lifting platform 13. The plurality of gas distribution holes 14 are all connected to the hollow cavity. The frame 11 is rotatably connected, the electric drive is installed in the follower frame 12, and a sheet metal cover door 19 is installed outside the follower frame 12. A linkage component is installed between the outer frame 11 and the follower frame 12. The linkage component is controlled by the lifting platform 13. The linkage component includes a follower frame 20 and two external push strips 21. The follower frame 20 is fixedly connected to the follower frame 12. The two external push strips 21 are fixedly connected to the lifting platform 13. A through shaft 22 is provided in the strip-shaped opening on the follower frame 20. The two external push strips 21 are connected to the through shaft 22. An inner top recess is provided on the outer frame 11. The horizontal air pipe 24 is connected to the groove 23, and the horizontal air pipe 24 is connected to the extending quick pipe 25. The extending quick pipe 25 passes through the outer frame 11 and extends to the outside of the outer frame 11. The horizontal air pipe 24 is rotated by the rotation of the follower frame 12. The horizontal air pipe 24 is equipped with a horizontal recovery pipe 26. The horizontal recovery pipe 26 is fixedly connected to the lifting platform 13. The horizontal recovery pipe 26 is connected to a through quick pipe 27. The through quick pipe 27 passes through the lifting platform 13 and extends to the bottom of the lifting platform 13. The follower frame 12 is fixedly connected to a fan-shaped external gear 28. The shaped external gear 28 is engaged with a transmission gear 29, which is connected to the horizontal air pipe 24. The transmission gear 29 is fixedly connected to an eccentric cylinder 30 on the outside, and a connecting spring 31 is fixedly connected to the eccentric cylinder 30. The connecting spring 31 is fixedly connected to the horizontal air pipe 24. By matching the space-building structure, a corresponding support and storage structure is provided for the SMT template steel mesh, and the use of an independent space can reduce the impact of external factors on the detection of the SMT template steel mesh, and it is also convenient to control the surrounding environment of the SMT template steel mesh, thereby enriching the detection range of the SMT template steel mesh and making it more practical.

[0023] It should be further explained that a driving gear 36 is installed on the output shaft of the first servo motor 10 and the output shaft of the second servo motor 33, and a driven gear 37 is installed on the threaded rod 32 and the crossing frame 5. The two driving gears 36 are respectively engaged with the two driven gears 37. Through the engagement of the two driving gears 36 with the two driven gears 37, the rotation drive and control of the crossing frame 5 can be realized when the first servo motor 10 is running, and the rotation drive and control of the threaded rod 32 can be realized when the second servo motor 33 is powered on. Pressure sensors 38 are installed at the four corners of the follower frame 12. When the follower frame 12 rotates and closes relative to the outer frame 11, the four pressure sensors 38 all form readings. By judging the readings of the four pressure sensors 38, it can be judged whether the follower frame 12 has formed a good closure relative to the outer frame 11.

[0024] The first servo motor 10, electric lifting rod 15, second servo motor 33, machine vision sensor and electric adjustment rod 4 in this embodiment are all conventional equipment purchased on the market and well known to those skilled in the art. In the present invention, we only use them and do not improve their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method only need to be debugged according to the requirements of the instruction manual, and will not be described in detail here.

[0025] In summary, the working principle of the detection device and method of the SMT template steel mesh is as follows: before use, first, a control circuit is installed for the first servo motor 10, the electric lifting rod 15, the second servo motor 33, the machine vision sensor and the electric adjustment rod 4; then, a pigment supply pipe connected to the outside is installed for the fabric pipe 6; then, a processing computer is installed for the machine vision sensor; the software matching the machine vision sensor in the processing computer can realize the display and processing of the information collected by the machine vision sensor; the first fast take-over pipe 16, the second fast take-over pipe 17 and the third fast take-over pipe are installed. 18 are equipped with independent air pumps, which are connected to the high-pressure air pump for the extended quick pipe 25 and the recovery air pump for the penetrating quick pipe 27. In actual use, the three independent air pumps can form gas pumping or gas extraction operations for the first quick pipe 16, the second quick pipe 17 and the third quick pipe 18 respectively. When the three independent air pumps form gas pumping operations for the first quick pipe 16, the second quick pipe 17 and the third quick pipe 18 respectively, the compressed air will be ejected through the gas distribution hole 14. When the three independent air pumps form gas pumping operations for the first quick pipe 16, the second quick pipe 17 and the third quick pipe 18 respectively, the compressed air will be ejected through the gas distribution hole 14. When the quick-connect pipe 18 forms a gas extraction operation, a negative pressure state will be formed near the gas distribution hole 14. At this time, the SMT template steel mesh attached to the lifting platform 13 will be in an adsorption positioning state. By controlling the number of operations of the three independent air pumps and the operation mode of pumping in and out, it can assist in achieving the temperature adjustment of the environment above the gas distribution hole 14, and can also enable the SMT template steel mesh to maintain the adsorption positioning state, to form air exchange in the lifting platform 13, so as to form a detection operation under different temperature conditions for the SMT template steel mesh to be tested. For example, by controlling the three independent air pumps The air pump is in operation, so that the first quick-connect pipe 16 and the second quick-connect pipe 17 are both in a gas extraction state, and the third quick-connect pipe 18 is in a gas pumping state, and the temperature of the gas pumped into the third quick-connect pipe 18 is heated or reduced, thereby realizing heat exchange inside the lifting platform 13 and keeping the area near the gas distribution hole 14 in a negative pressure state, so that the SMT template steel mesh to be tested is in an adsorption and positioning state on the lifting platform 13 and the temperature of the SMT template steel mesh to be tested is controlled, so as to form an expansion and contraction test of the SMT template steel mesh to be tested at different temperatures.

[0026] During the inspection operation, the space creation structure is first operated to realize the relative placement of the SMT template steel mesh to be inspected, and then the space creation structure is controlled to form a closed space around the inserted SMT template steel mesh to be inspected. The operation process of the space creation structure is as follows: first, the electric lifting rod 15 is powered on to realize the height increase of the lifting platform 13 in the outer frame 11, and the lifting platform 13 will drive the two external push bars 21 to rise synchronously. The rise of the two external push bars 21 will push the follower frame 20 through the through shaft 22, and then realize the rotation and rise of the follower frame 12 relative to the outer frame 11, so that an insertion channel matching the SMT template steel mesh to be inspected is formed between the outer frame 11 and the follower frame 12, and During the rotation of the moving frame 12, the fan-shaped external gear 28 will also be driven to rotate synchronously. Under the meshing transmission action between the fan-shaped external gear 28 and the transmission gear 29, the transmission gear 29 will rotate synchronously with the rotation of the fan-shaped external gear 28, and then drive the rotation of the horizontal air pipe 24. Since the transmission action between the transmission gear 29 and the horizontal air pipe 24 is realized by the transmission of the connecting spring 31, when the horizontal air pipe 24 is stuck or rotated to the rotation limit position, the fan-shaped external gear 28 can still rotate, thereby improving the operating safety of the fan-shaped external gear 28. In addition, in order to avoid the meshing transmission between the fan-shaped external gear 28 and the transmission gear 29 from being affected by the outside world, a matching spring 31 can be installed outside the outer frame 11. A protective cover is installed to achieve protection between the fan-shaped external gear 28 and the transmission gear 29. After the SMT template steel mesh to be tested is placed on the lifting platform 13, the high-pressure air pump and the recovery air pump are started. The high-pressure air pump pumps compressed air into the horizontal air pipe 24 by extending the quick-connect pipe 25, and the recovery air pump provides negative pressure adsorption near the horizontal recovery pipe 26 by passing through the quick-connect pipe 27. The electric lifting rod 15 operates to control the lifting platform 13 to fall, and at the same time, the follower frame 12 rotates and falls and the horizontal air pipe 24 forms a follow-up rotation. In the process of the follower frame 12 rotating and falling, after the follower frame 12 forms a rotational contact with the outer frame 11, the space around the SMT template steel mesh to be tested can be closed. In this process, The rotating horizontal air pipe 24 will form a blowing dust removal from near to far on the upper surface of the SMT template steel mesh to be inspected, and the horizontal recovery pipe 26 is matched with the horizontal air pipe 24 to absorb and clean the dust on the upper surface of the SMT template steel mesh to be inspected. Then, the electric drive component is controlled to operate to adjust the position of the sliding frame 2. Due to the threaded transmission effect between the threaded rod 32 and the threaded sleeve 35, the second servo motor 33 is powered on and operated, which can realize the movement adjustment of the threaded sleeve 35 relative to the follower frame 12, and then realize the movement adjustment of the sliding frame 2 within the follower frame 12. Then, the electric adjustment rod 4 is operated to realize the rotation and fall of the adjustment frame 3 relative to the sliding frame 2, so that the crossing frame 5 and the SMT template steel mesh to be inspected form a close movement.

[0027] In the process of the crossing frame 5 and the SMT template steel mesh to be inspected being close to each other, the first servo motor 10 is powered on to realize the rotation adjustment of the crossing frame 5, so that the cloth strip hole 8 on the cloth tube 6 is rotated away from the cutting sleeve 9. When the cloth strip hole 8 is rotated away from the cutting sleeve 9, the external pigment supply pipe can form pigment layout relative to the SMT template steel mesh to be inspected through the cloth strip hole 8. After the pigment layout is completed, the first servo motor 10 is powered on to realize the rotation adjustment of the crossing frame 5, and the cloth strip hole 8 is controlled to rotate again and be received in the cutting sleeve 9. Thereafter, the cloth strip hole 8 can be sealed by the sealing shielding effect of the cutting sleeve 9. , to prevent the pigment from continuing to flow out of the cloth strip hole 8, and then control the first servo motor 10 and the electric adjustment rod 4 to run synchronously, so that the scraper rod 7 is in close contact with the SMT template steel mesh to be detected. Under normal circumstances, the minimum distance between the scraper rod 7 and the SMT template steel mesh to be detected in the rotating state is preferably between 0.2mm and 0.5mm, and the distance needs to be adjusted according to the viscosity of the pigment, that is, within a certain range, the thicker the pigment, the larger the spacing value, and then the space is created to form an adsorption positioning with the matching SMT template steel mesh to be detected, and the electric drive unit is operated to realize scraping. The rod 7 is driven by the movement relative to the SMT template steel mesh to be inspected to scrape the paint on the SMT template steel mesh to be inspected, so that the paint is spread flat on the SMT template steel mesh to be inspected. The machine vision sensor is equipped with the flat paint on the SMT template steel mesh to be inspected to form a surface quality detection of the SMT template steel mesh to be inspected. Since the paint is flat, it will cover the upper surface of the SMT template steel mesh to be inspected, and since the scraper rod 7 will scrape the upper surface of the paint flat, if the surface levelness of the SMT template steel mesh to be inspected is poor or there are defects such as pits on the upper surface, The pigment on the surface of the SMT template steel mesh to be inspected will show uneven thickness. Therefore, the lightness and depth of the pigment color can be collected by the machine vision sensor to form a quality assessment of the SMT template steel mesh to be inspected. That is, the area with lighter pigment color has a thicker pigment layer than the area with darker pigment color. The area with lighter pigment color on the SMT template steel mesh to be inspected will appear relatively raised, and vice versa. The color with a large color difference from the surface of the SMT template steel mesh to be inspected should be selected. At the same time, water-soluble pigments should be selected to facilitate the subsequent cleaning of the pigment.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for an SMT template steel mesh, comprising a base (1), characterized in that: The invention also includes a detection system, wherein a space construction structure is installed on the base (1), and the detection system includes an electric drive component, the electric drive component is installed in the space construction structure, a sliding frame (2) is installed on the electric drive component, a machine vision sensor is installed at the bottom end of the sliding frame (2), a turning frame (3) is rotatably connected to the sliding frame (2), an electric adjustment rod (4) is installed on the sliding frame (2), the adjustment rod of the electric adjustment rod (4) is hinged to the turning frame (3), a crossing frame (5) is rotatably connected in the turning frame (3), a cloth pipe (6) and a scraper rod (7) are installed on the crossing frame (5), a cloth strip hole (8) is opened on the cloth pipe (6), a cutting sleeve (9) is fixedly connected in the turning frame (3), the cutting sleeve (9) matches the cloth strip hole (8), and a first servo motor (10) is installed on the turning frame (3), and the first servo motor (10) is used for rotationally driving the crossing frame (5).

2. The detection device for SMT template steel mesh according to claim 1, characterized in that: The space creation structure includes an outer frame (11) and a follower frame (12), wherein the outer frame (11) is fixedly connected to the base (1), and a lifting platform (13) is slidably connected in the outer frame (11), wherein a hollow cavity is provided in the lifting platform (13), and a plurality of gas distribution holes (14) are provided at the top of the lifting platform (13), and the plurality of gas distribution holes (14) are all connected to the hollow cavity, and an electric lifting rod (15) is installed in the base (1), and the electric lifting rod (15) is The lifting rod is connected to the lifting platform (13), and the lifting platform (13) is connected to a first quick-connect pipe (16), a second quick-connect pipe (17) and a third quick-connect pipe (18). The follower frame (12) is rotatably connected to the peripheral frame (11). The electric drive component is installed in the follower frame (12), and a sheet metal cover door (19) is installed outside the follower frame (12). A linkage component is installed between the peripheral frame (11) and the follower frame (12), and the linkage component is controlled by the lifting platform (13).

3. The detection device for SMT template steel mesh according to claim 2, characterized in that: The linkage assembly includes a follower connecting frame (20) and two external push strips (21), wherein the follower connecting frame (20) is fixedly connected to the follower frame (12), and the two external push strips (21) are fixedly connected to the lifting platform (13). A through shaft (22) is provided in the strip-shaped opening on the follower connecting frame (20), and the two external push strips (21) are connected to the through shaft (22).

4. The detection device for SMT template steel mesh according to claim 3, characterized in that: The outer frame (11) is provided with an inner top recessed groove (23), a horizontal air pipe (24) is rotatably connected in the inner top recessed groove (23), the horizontal air pipe (24) is connected with a protruding quick-connect pipe (25), the protruding quick-connect pipe (25) passes through the outer frame (11) and extends to the outside of the outer frame (11), the horizontal air pipe (24) rotates in conjunction with the rotation of the follower frame (12), the horizontal air pipe (24) is equipped with a horizontal recovery pipe (26), the horizontal recovery pipe (26) is fixedly connected to the lifting platform (13), the horizontal recovery pipe (26) is connected with a through-quick-connect pipe (27), the through-quick-connect pipe (27) passes through the lifting platform (13) and extends to the bottom of the lifting platform (13).

5. The detection device for SMT template steel mesh according to claim 4, characterized in that: The follower frame (12) is fixedly connected to a sector-shaped external gear (28), the sector-shaped external gear (28) is meshed with a transmission gear (29), and the transmission gear (29) is connected to the horizontal air pipe (24).

6. The detection device for SMT template steel mesh according to claim 5, characterized in that: The transmission gear (29) is fixedly connected to an eccentric cylinder (30) on the outside, and a connecting spring (31) is fixedly connected to the inside of the eccentric cylinder (30). The connecting spring (31) is fixedly connected to the horizontal air pipe (24).

7. The detection device for SMT template steel mesh according to claim 6, characterized in that: The electric drive component comprises a threaded rod (32), a second servo motor (33) and two optical rods (34). The threaded rod (32), the second servo motor (33) and the two optical rods (34) are all installed in the follower frame (12). The second servo motor (33) is used to drive the threaded rod (32) to rotate. A threaded sleeve (35) is threadedly connected to the threaded rod (32). The threaded sleeve (35) is fixedly connected to the sliding frame (2). Two sliding holes are provided on the sliding frame (2). The two optical rods (34) are respectively in sliding engagement with the two sliding holes.

8. The detection device for SMT template steel mesh according to claim 7, characterized in that: A driving gear (36) is mounted on the output shaft of the first servo motor (10) and the output shaft of the second servo motor (33), and a driven gear (37) is mounted on the threaded rod (32) and the spanning frame (5). The two driving gears (36) are respectively engaged with the two driven gears (37).

9. The detection device for SMT template steel mesh according to claim 8, characterized in that: Pressure sensors (38) are installed at the four corners of the follower frame (12). When the follower frame (12) rotates and closes relative to the peripheral frame (11), the four pressure sensors (38) all form readings.

10. A detection method for a detection device of an SMT template steel mesh, characterized in that: A detection device for an SMT template steel mesh according to any one of claims 1 to 9 is used, comprising the following steps: S1. Before use, first, a control circuit is installed for the space structure, the electric drive component, the machine vision sensor, the electric adjustment rod (4) and the first servo motor (10), and then a pigment supply pipe connected to the outside is installed for the fabric pipe (6), and then a processing computer is installed for the machine vision sensor. The processing of the information collected by the machine vision sensor can be realized through the software in the processing computer that matches the machine vision sensor; S2. During the inspection operation, the space-building structure is first operated to realize the relative placement of the SMT template steel mesh to be inspected, and then the space-building structure is controlled to form a closed space around the placed SMT template steel mesh to be inspected, and then the electric drive component is controlled to operate to realize the position adjustment of the sliding frame (2), and then the electric adjustment rod (4) is operated to realize the rotation and fall of the adjustment frame (3) relative to the sliding frame (2), so that the spanning frame (5) and the SMT template steel mesh to be inspected are brought into close proximity; S3, when the spanning frame (5) and the SMT template steel mesh to be inspected are brought into close proximity, the first servo motor (10) is powered on to realize the rotation adjustment of the spanning frame (5), so that the cloth strip hole (8) on the cloth tube (6) rotates away from the cutting sleeve (9). When the cloth strip hole (8) rotates away from the cutting sleeve (9), the external pigment supply tube can form pigment layout relative to the SMT template steel mesh to be inspected through the cloth strip hole (8). After the pigment layout is completed, the first servo motor (10) is powered on to realize the rotation adjustment of the spanning frame (5), and controls the cloth strip hole (8) to rotate again and be received into the cutting sleeve (9); S4, then controlling the first servo motor (10) and the electric adjustment rod (4) to operate synchronously, so that the scraper rod (7) forms a close contact state relative to the SMT template steel mesh to be detected, and then the space-building structure is matched with the SMT template steel mesh to be detected to form an adsorption positioning, and the electric drive component is operated to realize the motion drive of the scraper rod (7) relative to the SMT template steel mesh to be detected, so as to realize the scraping of the pigment on the SMT template steel mesh to be detected, so that the pigment is flattened on the SMT template steel mesh to be detected, and the machine vision sensor is matched with the flattened pigment on the SMT template steel mesh to be detected to form a plane quality detection of the SMT template steel mesh to be detected.

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