A non-contact steel mesh thickness automatic testing device

Abstract

The present application relates to the technical field of thickness detection device, specifically to a kind of non-contact steel mesh thickness automatic testing device, including base, dust suction assembly is equipped on base, filter assembly is equipped on dust suction assembly, dust suction assembly is used to adsorb the dust on the surface of detection workpiece, filter assembly is used to filter dust, sealing assembly is equipped on filter assembly, sealing assembly is used to seal the bottom of filter assembly.The dust on the surface of detection workpiece is adsorbed by dust suction assembly on base, dust is filtered and intercepted by cooperating filter assembly, and then the bottom of filter assembly is sealed by sealing assembly, which can remove floating dust on the surface of workpiece before detection without contact to ensure detection accuracy, avoid dust scattering to cause equipment wear and secondary pollution, improve the dust removal effect of device and the convenience of routine maintenance.

Description

Technical Field

[0001] This invention relates to a thickness testing device, specifically a non-contact automatic steel mesh thickness testing device, belonging to the technical field of thickness detection devices. Background Technology

[0002] Stencils are a core tooling component in SMT surface mount technology, primarily used to precisely control the printing thickness and coating pattern of solder paste. The uniformity of its thickness directly determines the solder paste printing quality, which in turn affects the soldering reliability and finished product yield of electronic components. In the industry, dedicated thickness detection devices are typically used to verify the quality of stencils. These devices generally use a displacement detection unit in conjunction with a planar movement mechanism to traverse the area of ​​the stencil to be inspected, collect displacement data at corresponding points, and then calculate the actual thickness of the stencil, thereby completing the thickness qualification test of the stencil.

[0003] However, during the production, turnover, and storage of existing steel mesh, particles such as floating dust and tiny solder paste residues easily adhere to the surface. These impurities will adhere to the surface of the steel mesh being tested, change the state of the detection reference plane, interfere with the normal signal acquisition and recognition of the detection equipment, directly reduce the signal acquisition accuracy, and ultimately cause deviations in the steel mesh thickness detection data. Summary of the Invention

[0004] The purpose of this invention is to provide a non-contact automatic steel mesh thickness testing device to solve the above-mentioned problems. The device uses a dust-collecting component on the base to adsorb dust on the surface of the workpiece, and a filter component to filter and intercept the dust. The bottom of the filter component is then sealed by a sealing component. This not only removes floating dust from the workpiece surface without contact before testing to ensure testing accuracy, but also avoids dust scattering that could cause equipment damage and secondary pollution, thus improving the dust removal effect and the convenience of daily maintenance.

[0005] The present invention achieves the above-mentioned objective through the following technical solution: a non-contact automatic steel mesh thickness testing device, comprising a base, a dust collection component on the base, a filter component on the dust collection component, the dust collection component being used to adsorb dust on the surface of the workpiece to be tested, the filter component being used to filter the dust, and a sealing component on the filter component being used to seal the bottom of the filter component.

[0006] Preferably, the dust collection assembly includes connecting rods, a mounting frame, and a negative pressure fan. Two connecting rods are mounted on the base, and a mounting frame is fixedly connected between the two connecting rods. The negative pressure fan is mounted on the mounting frame.

[0007] Preferably, the filtering assembly includes a collection box and a filter screen, with the collection box slidably connected to the mounting frame and the filter screen fixedly connected to the collection box.

[0008] Preferably, the sealing assembly includes a sealing plate, which is slidably connected to the collection box and is used to seal the bottom of the collection box.

[0009] Preferably, a connecting block is fixedly connected to the sealing plate, a connecting column is fixedly connected to the connecting block, a guide ring is fixedly connected to the collection box, and the connecting column and the guide ring are slidably connected.

[0010] Preferably, a fixing ring is fixedly connected to the connecting column, the fixing ring is slidably connected to the collection box, and a spring is fixedly connected between the fixing ring and the guide ring.

[0011] Preferably, the collection box is rotatably connected to a connecting shaft, a locking rod is fixedly connected to the connecting shaft, a fixing block is fixedly connected to the mounting frame, the locking rod engages with the fixing block and the connecting column respectively, and a torsion spring is fixedly connected between the connecting shaft and the collection box.

[0012] Preferably, a first linear motor is mounted on the base, a second linear motor is mounted on the slide of the first linear motor, a mounting bracket is mounted on the slide of the second linear motor, and a thickness measuring instrument is mounted on the mounting bracket.

[0013] Preferably, a guide rail is fixedly connected to the base, two slide plates are slidably connected to the guide rail, multiple sliders are slidably connected to the slide plates, and a connecting plate is fixedly connected to the slide plates.

[0014] Preferably, several of the sliders are rotatably connected to rollers via a pivot, and a drive component is mounted on the slide plate, which drives the sliders to slide.

[0015] The beneficial effects of this invention are as follows: a dust collection component is provided on the base, and a filter component is provided on the dust collection component. The dust collection component is used to adsorb dust on the surface of the workpiece to be tested, and the filter component is used to filter the dust. A sealing component is provided on the filter component to seal the bottom of the filter component. By adsorbing dust on the surface of the workpiece to be tested by the dust collection component on the base, and filtering and intercepting the dust in conjunction with the filter component, and then sealing the bottom of the filter component by the sealing component, it is possible to remove floating dust on the surface of the workpiece without contact before testing to ensure testing accuracy, and to avoid dust scattering that causes equipment damage and secondary pollution, thereby improving the dust removal effect of the device and the convenience of daily maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the collection box and the mounting frame of the present invention; Figure 3 This is a schematic diagram of the connection structure between the collection box and the sealing plate of the present invention; Figure 4 This is a schematic diagram of the connection structure between the lever and the connecting shaft of the present invention; Figure 5 This is a schematic diagram of the connection structure between the thickness measuring instrument and the mounting bracket of the present invention; Figure 6 This is a schematic diagram of the connection structure between the guide rail and the slide plate of the present invention.

[0017] In the diagram: 1. Base; 2. Connecting rod; 3. Mounting frame; 4. Negative pressure fan; 5. Collection box; 6. Sealing plate; 7. Filter screen; 8. Connecting block; 9. Connecting column; 10. Guide ring; 11. Fixing ring; 12. Spring; 13. Connecting shaft; 14. Torsion spring; 15. Clamping rod; 16. Fixing block; 17. First linear motor; 18. Second linear motor; 19. Mounting bracket; 20. Thickness gauge; 21. Guide rail; 22. Slide plate; 23. Connecting plate; 24. Slider; 25. Roller; 26. Driving component. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-6 As shown, a non-contact automatic steel mesh thickness testing device includes a base 1, a dust collection component on the base 1, a filter component on the dust collection component, the dust collection component is used to adsorb dust on the surface of the workpiece to be tested, the filter component is used to filter the dust, and a sealing component is provided on the filter component to seal the bottom of the filter component.

[0020] As a technical optimization of the present invention, the dust collection component includes a connecting rod 2, a mounting frame 3, and a negative pressure fan 4. Two connecting rods 2 are installed on the base 1, and the mounting frame 3 is fixedly connected between the two connecting rods 2. The negative pressure fan 4 starts synchronously to generate an upward negative pressure airflow, which adsorbs dust particles on the surface of the workpiece in a non-contact manner, effectively removing surface dust to ensure the accuracy of subsequent inspection. The dust-laden airflow enters the collection box 5, which is slidably inserted into the mounting frame 3. After being intercepted and filtered by the filter screen 7 on the collection box 5, the clean airflow passes through the negative pressure fan 4 and is discharged. The dust is trapped inside the collection box 5, which can effectively prevent dust from entering the negative pressure fan 4 and causing equipment damage. The negative pressure fan 4 is installed on the mounting frame 3. The filter component includes a collection box 5 and a filter screen 7. The collection box 5 is slidably connected to the mounting frame 3, and the filter screen 7 is fixedly connected to the collection box 5.

[0021] As a technical optimization of the present invention, the sealing assembly includes a sealing plate 6, which is slidably connected to the collection box 5. The sealing plate 6 is used to seal the bottom of the collection box 5. A connecting block 8 is fixedly connected to the sealing plate 6, and a connecting post 9 is fixedly connected to the connecting block 8. A guide ring 10 is fixedly connected to the collection box 5. The connecting post 9 is slidably connected to the guide ring 10. A fixing ring 11 is fixedly connected to the connecting post 9 and is slidably connected to the collection box 5. A spring 12 is fixedly connected between the fixing ring 11 and the guide ring 10. The collection box 5 is rotatably connected to a connecting shaft 13. When the workpiece limit is released, the workpiece can smoothly slide out of the device along the roller 25. When it is necessary to clean the collected dust, the card is activated. Rotating rod 15 releases the engagement between rod 15 and fixed block 16 and connecting column 9. Spring 12 synchronously pushes fixed ring 11 to move, causing connecting column 9 and sealing plate 6 to reset, so that sealing plate 6 re-seals the bottom of collection box 5, preventing dust from spilling and causing secondary pollution during collection box 5 removal. At this time, collection box 5 can be horizontally pulled out from mounting frame 3. After cleaning, collection box 5 can be reinserted into mounting frame 3 to quickly restore normal use of the device. Rod 15 is fixedly connected to connecting shaft 13, and fixed block 16 is fixedly connected to mounting frame 3. Rod 15 engages with fixed block 16 and connecting column 9 respectively. Torsion spring 14 is fixedly connected between connecting shaft 13 and collection box 5.

[0022] As a technical optimization of the present invention, a first linear motor 17 is installed on the base 1, a second linear motor 18 is installed on the slide of the first linear motor 17, and a mounting bracket 19 is installed on the slide of the second linear motor 18. The control module controls the first linear motor 17 on the base 1 to operate, driving the second linear motor 18 to move laterally. The second linear motor 18 synchronously drives the mounting bracket 19 to move longitudinally. The cooperation of the two linear motors can realize automatic traversal detection of all points of the workpiece. A thickness detector 20 is installed on the mounting bracket 19.

[0023] As a technical optimization of the present invention, a guide rail 21 is fixedly connected to the base 1, and two slide plates 22 are slidably connected to the guide rail 21. Multiple sliders 24 are slidably connected to the slide plates 22. The driving component 26 drives the sliders 24 to complete a preset sliding stroke along the slide plates 22, and simultaneously adjusts the position of the rollers 25 so that the rollers 25 fit the workpiece. This provides smooth guiding support for the workpiece sliding and also allows the slide plates 22 to make stable contact with the workpiece, thereby improving the positional stability of the detection process. A connecting plate 23 is fixedly connected to the slide plates 22, and several sliders 24 are rotatably connected to the rollers 25 through a rotating shaft. The driving component 26 is installed on the slide plates 22, and the sliders 24 are driven to slide by the driving component 26.

[0024] In use, the steel mesh workpiece to be inspected is first slid into the device along the connecting plate 23 and slider 24 on the sliding plate 22. The two sliding plates 22 can slide along the guide rail 21 on the base 1 to adjust the spacing to accommodate workpieces of different sizes. The control module transmits control commands to the drive component 26 (preferably an electric push rod) through a stable electrical connection. The drive component 26 receives and responds to the electrical signal to perform extension and retraction actions. All electrical connection nodes are reliably connected, ensuring stable control signals and power transmission, so that the operating state of the drive component 26 is completely controlled by the control module. The drive component 26 drives the slider 24 to complete the preset sliding stroke along the sliding plate 22, and the roller 25 is adjusted synchronously. The position of the roller 25 is such that it fits against the workpiece, providing smooth guidance and support for workpiece sliding, and ensuring stable contact between the slide plate 22 and the workpiece, thus improving the positional stability of the inspection process. During workpiece insertion, the negative pressure fan 4 starts simultaneously, generating an upward negative pressure airflow that adsorbs dust particles from the workpiece surface in a non-contact manner, effectively removing surface dust to ensure subsequent inspection accuracy. The dust-laden airflow enters the collection box 5, which is slidably inserted into the mounting frame 3. After being filtered by the filter 7 on the collection box 5, the clean airflow passes through the negative pressure fan 4 and is discharged, while the dust is trapped inside the collection box 5, effectively preventing dust from entering the negative pressure fan 4 and causing equipment damage. With the collection box 5 inserted into the mounting frame 3, the fixing block 16 on the mounting frame 3 engages with the locking rod 15 on the collection box 5. The engagement is maintained by the preload of the torsion spring 14, enhancing the stability of the collection box 5 installation. After the dust removal process is completed, the control module controls the first linear motor 17 on the base 1 to operate, driving the second linear motor 18 to move laterally. The second linear motor 18 simultaneously drives the mounting frame 19 to move longitudinally. The dual-axis linear motors work together to achieve automatic traversal detection of all workpiece points, enabling the thickness gauge 20 on the mounting frame 19 to complete non-contact automatic thickness testing of all preset points. After the test is completed, the drive component 26 drives the slider. 24. Reset and release the workpiece limit. The workpiece can smoothly slide out of the device along the roller 25. When it is necessary to clean the collected dust, turn the lever 15 to release the engagement between the lever 15 and the fixed block 16 and the connecting column 9. The spring 12 pushes the fixed ring 11 to move, which drives the connecting column 9 and the sealing plate 6 to reset. This allows the sealing plate 6 to re-seal the bottom of the collection box 5, preventing dust from spilling and causing secondary pollution during the removal of the collection box 5. At this time, the collection box 5 can be pulled out horizontally from the mounting frame 3. After cleaning, the collection box 5 can be reinserted into the mounting frame 3 to quickly restore the device to normal use. The plug-in collection box 5 makes daily maintenance and cleaning more convenient.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A non-contact automatic steel mesh thickness testing device, comprising a base (1), characterized in that: The base (1) is provided with a dust collection component, and the dust collection component is provided with a filter component. The dust collection component is used to adsorb dust on the surface of the workpiece to be tested, and the filter component is used to filter the dust. The filter component is provided with a sealing component, and the sealing component is used to seal the bottom of the filter component.

2. The contactless automatic steel mesh thickness testing device according to claim 1, characterized in that: The dust collection assembly includes a connecting rod (2), a mounting frame (3) and a negative pressure fan (4). Two connecting rods (2) are mounted on the base (1), and a mounting frame (3) is fixedly connected between the two connecting rods (2). A negative pressure fan (4) is mounted on the mounting frame (3).

3. The non-contact automatic steel mesh thickness testing device according to claim 2, characterized in that: The filter assembly includes a collection box (5) and a filter screen (7). The collection box (5) is slidably connected to the mounting frame (3), and the filter screen (7) is fixedly connected to the collection box (5).

4. The non-contact automatic steel mesh thickness testing device according to claim 3, characterized in that: The sealing assembly includes a sealing plate (6), which is slidably connected to the collection box (5). The sealing plate (6) is used to seal the bottom of the collection box (5).

5. The non-contact automatic steel mesh thickness testing device according to claim 4, characterized in that: A connecting block (8) is fixedly connected to the sealing plate (6), a connecting column (9) is fixedly connected to the connecting block (8), and a guide ring (10) is fixedly connected to the collection box (5). The connecting column (9) and the guide ring (10) are slidably connected.

6. The contactless automatic steel mesh thickness testing device according to claim 5, characterized in that: A fixing ring (11) is fixedly connected to the connecting column (9), the fixing ring (11) is slidably connected to the collection box (5), and a spring (12) is fixedly connected between the fixing ring (11) and the guide ring (10).

7. The non-contact automatic steel mesh thickness testing device according to claim 6, characterized in that: The collection box (5) is rotatably connected to a connecting shaft (13), and a locking rod (15) is fixedly connected to the connecting shaft (13). A fixing block (16) is fixedly connected to the mounting frame (3). The locking rod (15) engages with the fixing block (16) and the connecting column (9) respectively. A torsion spring (14) is fixedly connected between the connecting shaft (13) and the collection box (5).

8. The contactless automatic steel mesh thickness testing device according to claim 1, characterized in that: A first linear motor (17) is mounted on the base (1), a second linear motor (18) is mounted on the slide of the first linear motor (17), a mounting bracket (19) is mounted on the slide of the second linear motor (18), and a thickness measuring instrument (20) is mounted on the mounting bracket (19).

9. The non-contact automatic steel mesh thickness testing device according to claim 1, characterized in that: A guide rail (21) is fixedly connected to the base (1), two slide plates (22) are slidably connected to the guide rail (21), multiple sliders (24) are slidably connected to the slide plates (22), and a connecting plate (23) is fixedly connected to the slide plates (22).

10. The contactless automatic steel mesh thickness testing device according to claim 9, characterized in that: Several of the sliders (24) are rotatably connected to rollers (25) via a rotating shaft, and a drive unit (26) is installed on the slide plate (22). The sliders (24) are driven to slide by the drive unit (26).

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