A laser micro-hole processing device and method for filter seal isolation piece

Abstract

The application relates to the technical field of laser drilling and discloses a filtering machine sealing isolation piece laser micro-hole machining device and method, which comprises a rack. In the laser drilling operation stage, the device can be switched to a small-diameter air suction structure work, the workpiece micro-hole drilling position is accurately focused, the fine smoke and dust and chippings in the hole position are adsorbed in a targeted manner, the problem of dust suction dispersion caused by the large-diameter structure air suction is effectively avoided, the machining precision and forming consistency of the micro-hole of the filtering machine sealing isolation piece are greatly improved, in the heat dissipation stage after the drilling machining is completed, the device can automatically close the small-diameter air suction passage and open the large-diameter air suction structure, the gas circulation coverage range is widened, the residual heat generated during the workpiece machining can be quickly and comprehensively removed, quality problems such as thermal deformation, micro-hole collapse and material aging damage of the workpiece caused by high-temperature retention are avoided, and the forming yield of the workpiece after machining is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of laser drilling technology, specifically, it relates to a laser micro-hole processing device and method for sealing and isolating components of a filter machine. Background Technology

[0002] Filter sealing components are precision functional parts with extremely small micropores on their surface and stringent processing accuracy requirements. In laser micro-hole processing, drilling and dust removal, and workpiece heat dissipation are two core processes. These two processes have completely different requirements for the diameter of the suction structure, making a universally applicable structure impossible. Specifically, laser drilling and dust removal requires a small-diameter suction structure to achieve targeted dust collection at the hole location; while post-processing workpiece heat dissipation requires a large-diameter suction structure to achieve comprehensive ventilation and heat dissipation. The diameter requirements for these two processes are fundamentally different. If a structure with a larger diameter is used, it is impossible to focus the suction on the micropore location, and the dust and debris at the micropore location cannot be accurately adsorbed during drilling, easily causing micropore blockage, rough hole walls, and diameter deviations, severely affecting product accuracy. If a structure with a smaller diameter is used, although it can meet the requirement of targeted dust removal, the ventilation coverage is extremely small, failing to meet the overall heat dissipation requirements of the workpiece. The large amount of residual heat generated by laser processing cannot be quickly dissipated, easily leading to quality problems such as workpiece thermal deformation, micropore collapse, and material damage.

[0003] Some existing equipment attempts to separate the dust removal duct and the heat dissipation duct into separate units, respectively, to meet the operational needs of small-diameter dust removal and large-diameter heat dissipation. However, the separate dual-duct independent structure will significantly increase the overall structural complexity of the equipment, occupy a large installation space, have high assembly and maintenance costs, increase the equipment failure rate, and is not conducive to small-scale and intensive production layout, resulting in poor practicality and economy.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A laser micro-hole processing device for filter sealing components includes a frame.

[0006] The frame is equipped with a support, and a clamping plate is installed on the support. The workpiece is clamped between the clamping plate and the support. A laser micro-hole processing system for drilling is installed on the frame. The frame is equipped with a connecting cover that is connected to the negative pressure suction system. The connecting cover has a flexible hose with a suction nozzle installed at the end of the hose. The suction nozzle is aligned with the opening to absorb the dust from the drilling. The bottom of the connecting cover also has a suction port. Two perpendicular rods are inserted inside the connecting cover, and a rocker arm is rotatably mounted between the two rods. Each rod has a corresponding sealing plug and sealing block for the hose and air intake. One rod has a top rod, the end of which is in contact with a guide block mounted on the side wall of the frame. The guide block has an arc-shaped surface that curves towards the connecting cover. After processing, the clamping plate moves upward to unlock the workpiece, driving the connecting cover to rotate synchronously. This causes the suction nozzle for point-to-point dust collection to shift and seal, and also drives the large-diameter air intake to shift and open, increasing the gas flow path and dissipating heat from the workpiece.

[0007] In a preferred embodiment of the present invention, adjusting rods are installed at the four corners of the bottom of the frame, and pads are installed at the bottom of the adjusting rods. The cross-sectional area of ​​the pads is larger than that of the adjusting rods, and anti-slip pads are installed at the bottom of the pads. A controller is also installed on the frame, which is used to control the start and stop of the negative pressure suction system and the laser micro-hole processing system.

[0008] In a preferred embodiment of the present invention, the support has a groove, the workpiece is placed above the groove, the clamp is U-shaped, a reinforcing plate is installed at the bend of the support, the reinforcing plate is triangular, a slot is provided on the side wall of the support, a positioning plate is installed on the slot, a locking bolt is screwed onto the positioning plate, and a bracket is rotatably installed at the end of the locking bolt, the end of the bracket being connected to the side wall of the clamp.

[0009] In a preferred embodiment of the present invention, the support is provided with a sliding groove, a sliding rod is installed on the sliding groove, the sliding rod is in a vertical state, a connecting frame is slidably installed on the sliding rod, the connecting frame is installed on the clamping plate, and a sliding plate is installed on the sliding rod to prevent the connecting frame from separating from the sliding rod.

[0010] In a preferred embodiment of the present invention, positioning shafts are installed at both ends of the connecting cover, and positioning seats are rotatably installed on the positioning shafts. The positioning seats are installed on the frame, and a discharge pipe is installed on the connecting cover. The discharge pipe is connected to the negative pressure suction system. A fixing frame is installed on the suction nozzle, and the end of the fixing frame is connected to the laser micro-hole processing system. The diameter of the suction nozzle is smaller than the diameter of the suction port.

[0011] In a preferred embodiment of the present invention, a positioning cover is installed inside the connecting cover, and support frames are installed at both ends of the positioning cover. The support frames are installed on the inner side wall of the connecting cover. The positioning cover is movably connected to a pair of insert rods, and the top rod is movably connected to the connecting cover and the positioning cover. A ball bearing is installed at the end of the top rod, and the ball bearing is adapted to the arc-shaped surface. The rocker arm is in an inclined state.

[0012] In a preferred embodiment of the present invention, a baffle is installed on the top rod, and a return spring is also sleeved on the top rod. One end of the return spring is engaged with the baffle, and the other end of the return spring is engaged with the side wall of the connecting cover. The return spring is used to drive the ball to fit against the arc-shaped surface.

[0013] In a preferred embodiment of the present invention, a synchronization frame is installed on the side wall of the clamping plate, a connecting plate is installed at both ends of the synchronization frame, a protrusion is installed at the end of the connecting plate, a swing arm is installed on the positioning shaft, a strip groove is opened on the swing arm, and the protrusion is slidably disposed in the strip groove.

[0014] In a preferred embodiment of the present invention, a limiting rod is movably and through-mounted on the clamping plate. The limiting rod is in a vertical state, with its bottom mounted on the frame and a limiting plate mounted on its top. The cross-sectional area of ​​the limiting plate is larger than that of the limiting rod.

[0015] A method for laser micro-hole processing of a filter press sealing component includes the following steps: Step 1: Adjust the height and level of the machine by using the adjusting rods at the four corners of the bottom of the frame and the pads. Use the anti-slip pads at the bottom of the pads to ensure that the equipment is placed stably. Step 2: Place the filter sealing and isolation component workpiece to be processed into the groove of the support base. Rely on the triangular reinforcing plate of the support base to ensure the support strength. Rotate the locking bolt on the positioning plate to push the bracket forward and drive the U-shaped clamping plate to move down along the vertical slide bar. Cooperate with the support base to clamp and fix the workpiece to avoid displacement and shaking during processing. Step 3: The controller presets and calibrates the process parameters such as hole diameter, hole spacing, processing power, and processing speed for laser drilling. Simultaneously, the laser micro-hole processing system and the negative pressure suction system are started. The laser micro-hole processing system accurately positions the preset drilling points on the workpiece, emits a high-energy laser beam, and uses the high-temperature ablation characteristics of the laser to melt, vaporize, and peel off the workpiece material, penetrating the workpiece wall layer by layer to complete the high-precision micro-hole etching and drilling operation. Step 4: During the drilling process, the connecting cover remains in a fixed position, and the small-diameter suction nozzle is precisely aligned with the opening position of the workpiece. At this time, the suction port is in a closed state under the sealing block. The negative pressure suction system uses a hose to make the suction nozzle form a high-intensity concentrated suction force, which adsorbs the smoke and fine debris generated by laser drilling in real time, avoiding micropore blockage and smoke pollution, and ensuring drilling accuracy and processing cleanliness. Step 5: After the micro-hole machining of the workpiece is completed, rotate the locking bolt in the opposite direction to retract the bracket and drive the clamping plate to move upward along the slide rod to unlock. During the upward movement of the clamping plate, the protrusions of the synchronous frame and connecting plate work in conjunction with the swing arm slot to drive the positioning shaft to rotate the entire connecting cover. The ball slides along the arc surface of the guide block, driving the top rod to move and pushing the two vertical insert rods to rotate synchronously with the rocker arm, so that the sealing plug blocks the hose and cuts off the dust suction passage of the nozzle. The sealing block is removed from the air intake to complete the unlocking. The large-diameter air intake is rotated to face the entire machining area of ​​the workpiece, widening the gas flow path. The high-flow-rate, high-speed airflow quickly removes the residual heat from the workpiece machining and dissipates the high temperature, while simultaneously sucking up residual dust, completing the heat dissipation and cleaning of the workpiece. Finally, the machined workpiece is removed and awaits the next machining cycle.

[0016] Compared with the prior art, the present invention has the following advantages: This invention allows switching to a small-diameter suction structure during the laser drilling stage. This structure precisely focuses on the micro-hole openings of the workpiece, specifically adsorbing fine dust and debris at the hole locations. This effectively avoids the problem of dust dispersion caused by the large-diameter structure, significantly improving the processing accuracy and forming consistency of the micro-holes in the filter's sealing and isolating components. During the heat dissipation stage after drilling, the equipment can automatically close the small-diameter suction path and open the large-diameter suction structure, widening the gas flow coverage. This allows for the rapid and comprehensive removal of residual heat from the workpiece, preventing quality problems such as thermal deformation, micro-hole collapse, and material aging damage caused by high-temperature retention. This effectively improves the yield rate of finished workpieces. Furthermore, this invention integrates the small-diameter dust removal structure and the large-diameter heat dissipation structure within the same connecting cover. Through mechanical linkage, the dual-diameter paths can be automatically switched, eliminating the need for the traditional separate dual-air duct independent arrangement structure. This greatly simplifies the overall equipment structure, reduces the installation space required, and lowers the assembly difficulty, maintenance costs, and operational failure rate.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 A 3D diagram of a laser micro-hole processing device for a filter press sealing and isolation component; Figure 2 A partial laser micro-pore processing device for a filter machine sealing and isolation component. Figure 1 ; Figure 3 A laser micropore processing device for filter machine sealing components Figure 2 Enlarged view of point A in the middle; Figure 4 A partial laser micro-pore processing device for a filter machine sealing and isolation component. Figure 2 ; Figure 5 A partial laser micro-pore processing device for a filter machine sealing and isolation component. Figure 3 ; Figure 6 A structural diagram of the rocker arm of a laser micro-hole processing device for a filter machine sealing and isolating component; Figure 7 A laser micropore processing device for filter machine sealing components Figure 6 Enlarged view at point B in the middle; Figure 8 This is a cross-sectional view of the connecting cover of a laser micro-hole processing device for a filter sealing and isolation component.

[0019] In the diagram: 1. Frame; 2. Adjusting rod; 3. Pad; 4. Controller; 5. Laser micro-hole processing system; 6. Support; 7. Groove; 8. Clamping plate; 9. Workpiece; 10. Reinforcing plate; 11. Slot; 12. Positioning plate; 13. Locking bolt; 14. Bracket; 15. Slide rod; 16. Slide plate; 17. Connecting frame; 18. Synchronizing frame; 19. Limiting rod; 20. Limiting plate; 21. Connecting plate; 22. Protrusion; 23. Connecting cover 24. Positioning shaft; 25. Positioning seat; 26. Discharge pipe; 27. Hose; 28. Inhalation nozzle; 29. ​​Fixing frame; 30. Inhalation port; 31. Positioning cover; 32. Support frame; 33. Insert rod; 34. Rocker arm; 35. Sealing plug; 36. Sealing block; 37. Top rod; 38. Ball bearing; 39. Baffle; 40. Return spring; 41. Guide block; 42. Arc surface; 43. Swing arm; 44. Strip groove; 45. Slide groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0021] Example 1:

[0022] like Figures 1 to 8 As shown, a laser micro-hole processing device for sealing and isolating components of a filter machine includes a frame 1, a support 6 mounted on the frame 1, a clamping plate 8 mounted on the support 6, and a workpiece 9 clamped between the clamping plate 8 and the support 6. A laser micro-hole processing system 5 for drilling is mounted on the frame 1. A connecting cover 23 connected to the negative pressure suction system is installed on the frame 1. A flexible hose 27 is provided on the connecting cover 23, and a suction nozzle 28 is installed at the end of the flexible hose 27. The suction nozzle 28 is aligned with the opening position to absorb the dust from the drilling. A suction port 30 is also provided at the bottom of the connecting cover 23. Two perpendicular insert rods 33 are inserted inside the connecting cover 23, and a rocker arm 34 is rotatably installed between the two insert rods 33. The two insert rods 33 are equipped with sealing plugs 35 and sealing blocks 36 corresponding to the hose 27 and the air intake 30. One of the insert rods 33 is equipped with a top rod 37. The end of the top rod 37 is in contact with the guide block 41 installed on the side wall of the frame 1. The guide block 41 has an arc-shaped surface 42, which bends towards the connecting cover 23. When the processing is completed, the clamping plate 8 moves up to unlock the workpiece, driving the connecting cover 23 to rotate synchronously. This causes the suction nozzle 28 for fixed-point dust collection to move and seal, and also drives the large-diameter air intake 30 to move and open, increasing the gas flow path and dissipating heat from the workpiece.

[0023] like Figures 1 to 8 As shown, in a specific embodiment, adjusting rods 2 are installed at the four corners of the bottom of the frame 1. A pad 3 is installed at the bottom of the adjusting rod 2, and the cross-sectional area of ​​the pad 3 is larger than that of the adjusting rod 2. An anti-slip pad is installed at the bottom of the pad 3. A controller 4 is also installed on the frame 1. The controller 4 is used to control the start and stop of the negative pressure suction system and the laser micro-hole processing system 5. The height and level of the equipment are adjustable through the cooperation of the adjusting rods 2 and the pad 3 at the lower end of the frame 1. The anti-slip pad on the pad 3 improves the stability of the entire machine. The controller 4 centrally manages all working systems, facilitating unified start and stop control by operators and simplifying the operation of the entire machine.

[0024] like Figures 1 to 8 As shown, further, the support 6 has a groove 7, the workpiece 9 is placed above the groove 7, the clamping plate 8 is U-shaped, a reinforcing plate 10 is installed at the bend of the support 6, the reinforcing plate 10 is triangular, the side wall of the support 6 has a slot 11, a positioning plate 12 is installed on the slot 11, a locking bolt 13 is screwed onto the positioning plate 12, and a bracket 14 is rotatably installed at the end of the locking bolt 13, the end of the bracket 14 is connected to the side wall of the clamping plate 8. The groove 7 of the support 6 provides initial positioning for the workpiece 9, the triangular reinforcing plate 10 strengthens the structural strength of the support 6 itself, and the locking bolt 13, together with the bracket 14, can smoothly drive the clamping plate 8 to press the workpiece 9, making clamping and adjustment convenient, ensuring that the workpiece 9 does not easily move during processing, and improving the dimensional accuracy of micro-hole processing.

[0025] like Figures 1 to 8 As shown, the support 6 further includes a groove 45, on which a slide rod 15 is mounted vertically. A connecting frame 17 is slidably mounted on the slide rod 15 and is installed on the clamping plate 8. A sliding plate 16 is mounted on the slide rod 15 to prevent the connecting frame 17 from separating from the slide rod 15. The slide rod 15 and the connecting frame 17 form a lifting and guiding structure for the clamping plate 8. The sliding plate 16 provides a limiting and anti-disengagement function, ensuring smooth and non-skewed lifting of the clamping plate 8. This further optimizes the stability of the workpiece 9 clamping and prevents the clamping plate 8 from dislodging, thus avoiding disruption to loading / unloading and subsequent linkage operations.

[0026] Example 2:

[0027] The difference between the above embodiments and this embodiment is that: Figures 1 to 8 As shown, positioning shafts 24 are installed at both ends of the connecting cover 23, and positioning seats 25 are rotatably mounted on the positioning shafts 24. The positioning seats 25 are mounted on the frame 1. A discharge pipe 26 is installed on the connecting cover 23, and the discharge pipe 26 is connected to the negative pressure suction system. A fixing bracket 29 is installed on the suction nozzle 28, and the end of the fixing bracket 29 is connected to the laser micro-hole processing system 5. The diameter of the suction nozzle 28 is smaller than the diameter of the suction port 30. The connecting cover 23 can be rotatably assembled through the positioning shafts 24 and the positioning seats 25. The fixing bracket 29 links and fixes the suction nozzle 28 and the laser micro-hole processing system 5 to ensure that the suction nozzle 28 is always aligned with the drilling point. The suction nozzle 28 and the suction port 30 are designed with a diameter difference to meet the differentiated ventilation requirements for dust removal and heat dissipation.

[0028] like Figures 1 to 8 As shown, in a specific embodiment, a positioning cover 31 is installed inside the connecting cover 23. Support frames 32 are installed at both ends of the positioning cover 31, and the support frames 32 are installed on the inner side wall of the connecting cover 23. The positioning cover 31 and a pair of insert rods 33 pass through each other. The top rod 37 passes through the connecting cover 23 and the positioning cover 31. A ball bearing 38 is installed at the end of the top rod 37, and the ball bearing 38 is adapted to the arc surface 42. The rocker arm 34 is in an inclined state. A baffle 39 is installed on the top rod 37. A return spring 40 is also sleeved on the top rod 37. One end of the return spring 40 is engaged with the baffle 39, and the other end of the return spring 40 is engaged with the side wall of the connecting cover 23. The return spring 40 is used to drive the ball bearing 38 to fit against the arc surface 42. The positioning cover 31 and support frame 32 limit the support rod 33 and the top rod 37. The ball bearing 38 reduces the sliding friction between the top rod 37 and the arc surface 42 of the guide block 41. The return spring 40, together with the baffle 39, can keep the ball bearing 38 close to the arc surface 42, ensuring that each linkage component is reliably reset after each process, which is conducive to the continuous processing of the equipment.

[0029] like Figures 1 to 8As shown, further, a synchronous frame 18 is installed on the side wall of the clamping plate 8, and connecting plates 21 are installed at both ends of the synchronous frame 18. A protrusion 22 is installed at the end of the connecting plate 21. A swing arm 43 is installed on the positioning shaft 24, and a strip groove 44 is opened on the swing arm 43. The protrusion 22 is slidably disposed in the strip groove 44. A limit rod 19 is movably installed through the clamping plate 8. The limit rod 19 is in a vertical state. The bottom of the limit rod 19 is installed on the frame 1, and a limit plate 20 is installed on the top of the limit rod 19. The cross-sectional area of ​​the limit plate 20 is larger than that of the limit rod 19. Through the synchronous frame 18, connecting plates 21, and protrusion 22 in conjunction with the strip groove 44 of the swing arm 43, the lifting action of the clamping plate 8 is converted into the rotation action of the connecting cover 23. Automatic switching of the air duct is achieved by mechanical linkage without the need for additional electric control drive. The limit rod 19 and the limit plate 20 constrain the maximum lifting stroke of the clamping plate 8 to avoid damage to the components caused by over-travel of the linkage.

[0030] This invention also discloses a method for laser micro-hole processing of a filter press sealing component, the steps of which are as follows: Step 1: Adjust the height and level of the machine by using the adjustment rods 2 at the four corners of the bottom of the frame 1 in conjunction with the pad 3. The anti-slip pad at the bottom of the pad 3 ensures that the equipment is placed stably. Step 2: Place the filter sealing isolation component 9 to be processed into the groove 7 of the support 6. Rely on the triangular reinforcing plate 10 of the support 6 to ensure the support strength. Rotate the locking bolt 13 on the positioning plate 12 to push the bracket 14 forward and drive the U-shaped clamping plate 8 to move down along the vertical slide bar 15. Cooperate with the support 6 to clamp and fix the workpiece 9 to avoid displacement and shaking during processing. Step 3: The controller 4 presets and calibrates the process parameters such as hole diameter, hole spacing, processing power, and processing speed for laser drilling, and simultaneously starts the laser micro-hole processing system 5 and the negative pressure suction system; the laser micro-hole processing system 5 precisely aligns with the preset drilling points on the workpiece 9, emits a high-energy laser beam, and uses the high-temperature ablation characteristics of the laser to melt, vaporize and peel off the material of the workpiece 9, penetrating the workpiece wall layer by layer to complete the high-precision micro-hole etching and drilling operation; Step 4: During the drilling process, the connecting cover 23 remains in a fixed position, and the small-diameter suction nozzle 28 is precisely aligned with the opening position of the workpiece 9. At this time, the suction port 30 is in a closed state under the sealing block 36. The negative pressure suction system uses the hose 27 to make the suction nozzle 28 form a high-intensity concentrated suction force, which adsorbs the smoke and fine debris generated by laser drilling in real time, avoiding micropore blockage and smoke pollution, and ensuring drilling accuracy and processing cleanliness. Step 5: After the micro-hole processing of workpiece 9 is completed, rotate the locking bolt 13 in the opposite direction to drive the bracket 14 to retract, and drive the clamping plate 8 to move upward along the slide rod 15 to unlock. During the upward movement of the clamping plate 8, the synchronous frame 18 and the protrusion 22 of the connecting plate 21 work together with the swing arm 43 and the strip groove 44 to drive the positioning shaft 24 to drive the connecting cover 23 to rotate as a whole. The ball bearing 38 slides along the arc surface 42 of the guide block 41, drives the top rod 37 to move, and pushes the two vertical insert rods 33 to rotate synchronously with the rocker arm 34, so that the sealing plug 35 blocks the hose 27 to cut off the dust suction passage of the nozzle, and the sealing block 36 disengages from the air intake 30 to complete the unlocking. The large-diameter air intake 30 rotates to face the overall processing area of ​​workpiece 9, widening the gas flow path. Relying on the high-flow and high-speed airflow, the residual heat of workpiece 9 is quickly removed and the high temperature is dissipated. At the same time, residual dust is sucked away, completing the heat dissipation and cleaning of the workpiece. Finally, the processed workpiece is removed and waits for the next processing cycle.

[0031] The implementation principle of the laser micro-hole processing device for filter sealing components of the present invention is as follows: The machine's level and height are adjusted by adjusting rods 2 at the four corners of the bottom of the frame 1 in conjunction with pads 3. The anti-slip pads at the bottom of the pads 3 ensure the stability of the equipment during processing. At the same time, the controller 4 on the frame 1 centrally controls the start and stop of the negative pressure suction system and the laser micro-hole processing system 5, achieving automated and orderly operation of the equipment. The workpiece 9 is pre-placed inside the groove 7 of the support 6. The triangular reinforcing plate 10 at the bend of the support 6 ensures the structural strength of the support 6. By rotating the locking bolt 13, the bracket 14 is pushed forward, driving the U-shaped clamping plate 8 to move down, thus clamping and fixing the workpiece 9 in conjunction with the support 6. Meanwhile, the vertical sliding rod 15, connecting frame 17, and sliding plate 16 work together to limit and guide the lifting and sliding of the clamping plate 8, preventing the clamping plate 8 from shifting or falling off. With the help of the limiting rod 19 and the top limiting plate 20, the movement stroke of the clamping plate 8 is further limited, ensuring the accuracy and stability of the workpiece 9 clamping.

[0032] After workpiece 9 is precisely clamped and positioned, the equipment officially starts the micro-hole processing procedure. The operator uses controller 4 to preset parameters such as the hole diameter, hole spacing, processing power, and processing speed for laser drilling. After parameter calibration, controller 4 simultaneously starts the laser micro-hole processing system 5 and the negative pressure suction system, and the equipment enters normal micro-hole precision processing mode. Laser micro-hole processing system 5 precisely aligns with the preset drilling points on workpiece 9, emitting a high-energy laser beam focused on the designated position on the surface of the filter machine's sealing and isolating workpiece 9. Utilizing the high-temperature ablation characteristics of the laser, the material of workpiece 9 is instantly melted, vaporized, and peeled off, gradually penetrating the wall thickness of workpiece 9 to complete the high-precision micro-hole etching and drilling operation. Throughout the process, the stable support of the equipment frame 1 and the tight positioning of workpiece 9 prevent defects such as micro-hole misalignment, uneven hole diameter, and burrs on the hole wall caused by micro-displacement of workpiece 9 during drilling, ensuring the consistency and precision of each micro-hole processing (laser micro-hole processing system 5 is existing technology; its specific structure and working principle will not be described further here).

[0033] During the laser micro-hole processing stage, the connecting cover 23 maintains a fixed processing position, and the suction nozzle 28 is aligned with the opening position of the workpiece 9. The negative pressure suction system is connected to the hose 27 through the discharge pipe 26 and the connecting cover 23, enabling the small-diameter suction nozzle 28 to generate high-intensity negative pressure suction. Due to the small diameter of the suction nozzle 28, the suction airflow is concentrated and the suction strength is high, which can accurately and efficiently adsorb and collect the smoke and debris generated during the laser micro-hole processing directly from the opening position of the workpiece. This effectively avoids smoke and dust adhering to the surface of the micro-holes of the workpiece 9 and clogging the micro-holes, while reducing the diffusion of smoke and dust and polluting the processing environment, ensuring the accuracy and cleanliness of laser drilling. During this stage, the suction port 30 is in a closed state under the sealing effect of the sealing block 36, leaving only the single suction path of the suction nozzle 28, maximizing the focused dust suction power, and adapting to the dust removal needs of precision drilling.

[0034] After the micro-holes in workpiece 9 are processed, the equipment enters the unloading and unlocking stage. Rotating the locking bolt 13 causes the bracket 14 to retract, driving the clamping plate 8 to move upward along the slide rod 15, thus releasing the clamping limit on workpiece 9.

[0035] As the clamping plate 8 moves upward, the synchronous frame 18 on its side wall rises accordingly. Through the protrusion 22 at the end of the connecting plate 21, it slides and adapts in the strip groove 44 of the swing arm 43, driving the swing arm 43 and the positioning shaft 24 to rotate, thereby driving the connecting cover 23 inside the positioning seat 25 to rotate synchronously as a whole. During the rotation of the connecting cover 23, the ball bearings 38, which are attached to the arc surface 42 of the guide block 41, slide relative to each other along the trajectory of the arc surface 42. This drives the push rod 37 to overcome the elastic limit of the return spring 40 and move axially. The push rod 37 further pushes the two mutually perpendicular insert rods 33 inside to move in linkage and rotate in angle. Then, relying on the inclined rocker arm 34, the synchronous turning adjustment of the two insert rods 33 is realized. Finally, the sealing plug 35 and the sealing block 36 mounted on the insert rod 33 are moved synchronously. The sealing plug 35 blocks the passage of the hose 27 corresponding to the suction nozzle 28, realizing the sealing and closing of the suction nozzle station for fixed-point dust collection. At the same time, the sealing block 36 simultaneously disengages from the sealing structure of the large-diameter suction port 30, so that the suction port 30 is fully opened, and the automatic switching of the equipment's suction passage is completed.

[0036] After the workstation switch is completed, the large-diameter suction port 30 is directly facing the entire processing area of ​​workpiece 9, completely covering the drilling position. The negative pressure suction system continues to work. At this time, the equipment's suction path is switched from the small-diameter suction nozzle 28 to the large-diameter suction port 30. Compared with the small-diameter fixed-point dust collection path, the opening of the suction port 30 significantly widens the gas flow path, significantly increases the airflow volume inside the equipment, and greatly accelerates the air circulation rate. The large-scale high-speed airflow can quickly remove the residual high-temperature heat on the surface of workpiece 9 and inside the micropores, quickly dissipating the residual heat accumulated on the workpiece after laser processing. This effectively solves the problems of excessively high local temperature, easy deformation, and thermal damage of the workpiece after laser micro-hole processing. At the same time, it can further remove the fine dust and debris remaining on the surface of the workpiece, comprehensively improving the forming quality of the workpiece after processing.

[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser micro-hole processing device for filter sealing components, comprising a frame (1), characterized in that: The frame (1) is equipped with a support (6), a clamp (8) is installed on the support (6), and a workpiece (9) is clamped between the clamp (8) and the support (6). A laser micro-hole processing system (5) for drilling is installed on the frame (1). The frame (1) is equipped with a connecting cover (23) that is connected to the negative pressure suction system. A flexible hose (27) is provided on the connecting cover (23), and a suction nozzle (28) is installed at the end of the flexible hose (27). The suction nozzle (28) is aligned with the opening position to absorb the dust from the drilling. A suction port (30) is also provided at the bottom of the connecting cover (23). The connecting cover (23) has two mutually perpendicular insert rods (33) inserted inside, and a rocker arm (34) is rotatably installed between the two insert rods (33). The two insert rods (33) are equipped with sealing plugs (35) and sealing blocks (36) corresponding to the hose (27) and the air inlet (30). One of the insert rods (33) is equipped with a top rod (37). The end of the top rod (37) is in contact with the guide block (41) installed on the side wall of the frame (1). The guide block (41) has an arc surface (42) and the arc surface (42) bends toward the connecting cover (23). When the processing is completed, the clamping plate (8) moves up to unlock the workpiece and drives the connecting cover (23) to rotate synchronously, so that the suction nozzle (28) for fixed-point dust collection moves and seals, and also drives the large-diameter air inlet (30) to move and open, increasing the gas flow path and dissipating heat from the workpiece.

2. The laser micro-hole processing device for a filter machine sealing and isolating component according to claim 1, characterized in that, Adjusting rods (2) are installed at the four corners of the bottom of the frame (1). A pad (3) is installed at the bottom of the adjusting rod (2). The cross-sectional area of ​​the pad (3) is larger than that of the adjusting rod (2). An anti-slip pad is installed at the bottom of the pad (3). A controller (4) is also installed on the frame (1). The controller (4) is used to control the start and stop of the negative pressure suction system and the laser micro-hole processing system (5).

3. The laser micro-hole processing device for filter sealing components according to claim 1, characterized in that, The support (6) has a groove (7) and the workpiece (9) is placed above the groove (7). The clamp (8) is U-shaped. A reinforcing plate (10) is installed at the bend of the support (6). The reinforcing plate (10) is triangular. A slot (11) is opened on the side wall of the support (6). A positioning plate (12) is installed on the slot (11). A locking bolt (13) is installed on the positioning plate (12) by screwing. A bracket (14) is rotatably installed at the end of the locking bolt (13). The end of the bracket (14) is connected to the side wall of the clamp (8).

4. The laser micro-hole processing device for a filter press sealing and isolating component according to claim 1, characterized in that, The support (6) has a groove (45) and a slide rod (15) is installed on the groove (45). The slide rod (15) is vertical and a connecting frame (17) is slidably installed on the slide rod (15). The connecting frame (17) is installed on the clamp (8) and a sliding plate (16) is installed on the slide rod (15). The sliding plate (16) is used to prevent the connecting frame (17) from separating from the slide rod (15).

5. The laser micro-hole processing device for a filter machine sealing and isolating component according to claim 1, characterized in that, The connecting cover (23) is equipped with positioning shafts (24) at both ends. Positioning seats (25) are rotatably mounted on the positioning shafts (24). The positioning seats (25) are mounted on the frame (1). The connecting cover (23) is equipped with a discharge pipe (26). The discharge pipe (26) is connected to the negative pressure suction system. The suction nozzle (28) is equipped with a fixing frame (29). The end of the fixing frame (29) is connected to the laser micro-hole processing system (5). The diameter of the suction nozzle (28) is smaller than the diameter of the suction port (30).

6. The laser micro-hole processing device for a filter machine sealing and isolating component according to claim 1, characterized in that, The connecting cover (23) is equipped with a positioning cover (31). The positioning cover (31) is equipped with support frames (32) at both ends. The support frames (32) are installed on the inner side wall of the connecting cover (23). The positioning cover (31) is movably connected to a pair of insert rods (33). The top rod (37) is movably connected to the connecting cover (23) and the positioning cover (31). The top rod (37) is equipped with a ball bearing (38) at its end. The ball bearing (38) is adapted to the arc surface (42). The rocker arm (34) is in an inclined state.

7. The laser micro-hole processing device for a filter press sealing component according to claim 6, characterized in that, A baffle (39) is installed on the top rod (37), and a return spring (40) is also sleeved on the top rod (37). One end of the return spring (40) is clamped on the baffle (39), and the other end of the return spring (40) is clamped on the side wall of the connecting cover (23). The return spring (40) is used to drive the ball (38) to fit against the arc surface (42).

8. The laser micro-hole processing device for a filter press sealing and isolating component according to claim 5, characterized in that, The clamp (8) is equipped with a timing frame (18) on its side wall. The timing frame (18) is equipped with connecting plates (21) at both ends. The connecting plates (21) are equipped with protrusions (22) at their ends. The positioning shaft (24) is equipped with a swing arm (43). The swing arm (43) is provided with a strip groove (44). The protrusions (22) are slidably disposed in the strip groove (44).

9. The laser micro-hole processing device for a filter press sealing and isolating component according to claim 8, characterized in that, A limiting rod (19) is movably installed through the clamp (8). The limiting rod (19) is in a vertical state. The bottom of the limiting rod (19) is installed on the frame (1). A limiting plate (20) is installed on the top of the limiting rod (19). The cross-sectional area of ​​the limiting plate (20) is larger than that of the limiting rod (19).

10. The laser micro-hole processing method for a filter press sealing component according to claim 1, characterized in that, The laser micro-hole processing apparatus for filter sealing components according to any one of claims 1 to 9, and the laser micro-hole processing method for filter sealing components, comprises the following steps: Step 1: Adjust the height and level of the whole machine by adjusting the four corner adjustment rods (2) at the bottom of the frame (1) in conjunction with the pad (3). The anti-slip pad at the bottom of the pad (3) ensures that the equipment is placed stably. Step 2: Place the filter sealing isolation component workpiece (9) to be processed into the groove (7) of the support (6). Rely on the triangular reinforcing plate (10) of the support (6) to ensure the support strength. Rotate the locking bolt (13) on the positioning plate (12) to push the bracket (14) forward and drive the U-shaped clamping plate (8) to move down along the vertical slide bar (15). Cooperate with the support (6) to clamp and fix the workpiece (9) to avoid deviation and shaking during processing. Step 3: The controller (4) presets the process parameters such as the hole diameter, hole spacing, processing power, and processing speed of laser drilling and completes the calibration. Simultaneously, the laser micro-hole processing system (5) and the negative pressure suction system are started. The laser micro-hole processing system (5) accurately positions the workpiece (9) to preset the drilling point, emits a high-energy laser beam, and uses the high-temperature ablation characteristics of the laser to melt, vaporize and peel off the material of the workpiece (9), penetrating the workpiece wall thickness layer by layer to complete the high-precision micro-hole etching and drilling operation. Step 4: During the drilling process, the connecting cover (23) is kept in a fixed position, and the small-diameter suction nozzle (28) is precisely aligned with the opening position of the workpiece (9). At this time, the suction port (30) is in a closed state under the sealing block (36). The negative pressure suction system uses the hose (27) to make the suction nozzle (28) form a high-intensity concentrated suction force, which adsorbs the smoke and fine debris generated by laser drilling in real time, avoids micropore blockage and smoke pollution, and ensures drilling accuracy and processing cleanliness. Step 5: After the micro-hole of workpiece (9) is processed, rotate the locking bolt (13) in the opposite direction to drive the bracket (14) to retract and drive the clamping plate (8) to move upward along the slide rod (15) to unlock; during the upward movement of the clamping plate (8), the protrusion (22) of the synchronous frame (18) and the connecting plate (21) cooperate with the strip groove (44) of the swing arm (43) to drive the positioning shaft (24) to drive the connecting cover (23) to rotate as a whole; the ball (38) slides along the arc surface (42) of the guide block (41), driving the top rod (37) to move and push the two The vertical insert (33) and the rocker arm (34) rotate synchronously, so that the sealing plug (35) blocks the hose (27) and cuts off the dust suction passage of the nozzle. The sealing block (36) is removed from the air intake (30) to complete the unlocking. The large-diameter air intake (30) rotates to face the overall processing area of ​​the workpiece (9), widening the gas flow path. It relies on the high flow rate and high speed airflow to quickly remove the processing residual heat of the workpiece (9) and dissipate the high temperature. At the same time, it removes residual dust, completes the heat dissipation and cleaning of the workpiece, and finally removes the processed workpiece to wait for the next processing cycle.

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