A fully automatic dustproof screw grinding equipment and processing method

Abstract

This invention discloses a fully automatic dustproof lead screw grinding equipment and processing method, relating to the field of lead screw grinding technology. The equipment includes a housing, which is a closed dustproof protective housing. A grinding mechanism is built into the housing. The housing includes a top plate, four side panels, and a bottom plate, all sealed together. An air inlet pipe is provided on the upper side of the top plate corresponding to the grinding mechanism. A dust collection hood is provided on the lower side of the grinding mechanism. An output pipe is connected to the lower end of the dust collection hood. An input pipe is connected to the upper end of the air inlet pipe. The other ends of the output and input pipes are connected to a circulation chamber. An inertial settling separator, a cyclone dust collector, and a first air pump are sequentially arranged on the output pipe. A filter and a second air pump are arranged on the input pipe. An exhaust pipe is provided on the inner wall of the top plate corresponding to each dust collection hood, and the exhaust pipe is connected to the air inlet pipe. This invention significantly improves dust collection coverage.

Description

Technical Field

[0001] This invention relates to the field of lead screw grinding technology, specifically to a fully automatic dustproof lead screw grinding equipment and processing method. Background Technology

[0002] As a core precision transmission component in CNC machine tools, automated equipment, and robot transmission systems, the surface grinding of the lead screw's outer diameter and thread raceway directly affects the lead screw's transmission accuracy, operating noise, and service life. After turning and rolling, the lead screw surface has burrs, oxide scale, and machining marks, which must be removed through a grinding process to ensure that the surface finish meets assembly and usage requirements.

[0003] Currently, lead screw grinding is mainly divided into two methods: manual grinding and simple automated grinding. Manual grinding relies on operators holding the lead screw close to the grinding wheel, which is labor-intensive, inefficient, and continuously generates a large amount of metal dust and debris. Although existing automatic lead screw grinding devices on the market can replace some manual operation and realize automatic clamping and grinding feed of the lead screw, they still have obvious drawbacks: most devices are open or simple semi-enclosed structures, relying only on a simple dust suction port on one side to collect dust, which cannot form a sealed isolation of the grinding area, and the problem of dust escape has not been completely solved. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic dustproof screw grinding equipment and processing method to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fully automatic dustproof screw grinding device and processing method, comprising a housing, the housing being a closed dustproof protective housing, with an overall rectangular box-shaped structure, a grinding mechanism built into the housing, and a clamping mechanism provided with the grinding end of the grinding mechanism; the housing includes a top plate, four side plates, and a bottom plate, all plates being sealed together to completely enclose the internal grinding operation area, preventing the dust generated during grinding from escaping outwards; an air inlet pipe is provided on the upper side of the top plate corresponding to the grinding mechanism, and a dust collection hood is provided on the lower side of the grinding mechanism for receiving the grinding dust. Metal powder falling from the machine is collected by an output pipe at the lower end of the dust collection hood and an input pipe at the upper end of the inlet pipe. The other ends of the output and input pipes are connected to a circulation chamber. An inertial settling separator, a cyclone dust collector, and a first air pump are sequentially installed on the output pipe. The inertial settling separator is located at the lower outlet of the dust collection hood. A filter and a second air pump are installed on the input pipe. The filter is located at the outlet of the circulation chamber. An exhaust pipe is installed on the inner wall of the top plate corresponding to each dust collection hood. The exhaust pipe is connected to the inlet pipe and has several exhaust ports, which are inclined towards the dust collection hood.

[0006] According to the above technical solution, the side panel surface is provided with corresponding windows in conjunction with the clamping mechanism.

[0007] According to the above technical solution, the dust collection hood is a downward-convex bucket-shaped shell structure, with the hood opening upwards and the open area aligned with the grinding operation position of the grinding mechanism.

[0008] According to the above technical solution, the circulation chamber preferably has a built-in temperature control module, which is used to adjust the internal airflow temperature of the circulation chamber according to actual needs.

[0009] According to the above technical solution, temperature sensors are respectively installed in the shell and the circulating chamber.

[0010] According to the above technical solution, the clamping mechanism includes an x-axis moving module, a y-axis moving module is provided at the drive end of the x-axis moving module, a support frame is provided at the drive end of the y-axis moving module, a support plate is fixed at the upper end of the support frame, a left bracket and a right bracket are respectively connected to both sides of the support plate, a cylinder is installed on the outer side of the left bracket, a connecting frame is fixed at the drive end of the cylinder, a drive box is installed on the connecting frame, a driver is built into the drive box, and a chuck is connected to the driver.

[0011] According to the above technical solution, a long plate is fixed on one side of the connecting frame, and a groove is opened on the side of the long plate facing the grinding mechanism. A slider is slidably arranged in the groove, and a limit plate is connected to the surface of the slider. A through groove is opened on the limit plate corresponding to the center area of ​​the chuck.

[0012] According to the above technical solution, the limiting plate is rotatably connected to the chuck side with an annular outer cylinder. The inner diameter of the annular outer cylinder matches the diameter of the through groove. The inner wall surface of the annular outer cylinder is provided with a threaded groove. A positioning block is provided in the threaded groove. A positioning groove is opened in the middle of the positioning block. The surface of the positioning block is rotatably engaged with the threaded groove. The diameter of the positioning groove matches the diameter of the lead screw.

[0013] According to the above technical solution, the upper and lower sides of the slider are respectively provided with slots, and the surface of the slot is provided with a retaining strip to cooperate with the slot. The retaining strip slides in cooperation with the slot.

[0014] According to the above technical solution, a skateboard is connected to the other side of the long board, and the skateboard slides in conjunction with the right support.

[0015] According to the above technical solution, a guide frame is provided on the surface of the support frame in conjunction with the dust collection hood, which is used to guide the metal powder impurities falling from the upper side to the dust collection hood.

[0016] According to the above technical solution, three long grooves are formed on the circumference of the inner wall surface of the positioning block. A spring is connected to the bottom of the long groove, and a telescopic block is connected to the other end of the spring. The telescopic block slides in the long groove. A semi-circular groove is formed on the other side of the telescopic block. A central shaft is fixed in the semi-circular groove. A roller is fitted on the surface of the central shaft. The roller rotates in cooperation with the central shaft and the inner wall surface of the semi-circular groove. The corresponding surface of the roller extends out of the surface of the telescopic block. A force sensor is set at the connection end between the spring and the long groove to detect the spring's stretching or expansion deformation.

[0017] According to the above technical solution, airflow channels are opened inside the positioning block corresponding to each long slot. The airflow channels are connected to a miniature air pump through a hose, and a pressure relief valve is installed on the hose.

[0018] According to the above technical solution, the x-axis moving module and the y-axis moving module adopt a motor screw moving structure to control the movement of the support frame in the x and y directions.

[0019] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: By adopting a rectangular box-shaped enclosed dustproof protective shell, the internal grinding operation area can be completely sealed, preventing the metal dust generated during grinding from escaping outward. This improves the problem of dust flying around in traditional open grinding equipment, effectively optimizes the working environment, protects the health of operators, and avoids problems such as equipment dust accumulation, component jamming, rusting and aging caused by scattered metal dust, thus extending the service life of the entire machine. Simultaneously, in conjunction with the exhaust pipe built into the top plate and the inclined exhaust port structure, a directional downward air curtain can be formed, forcibly gathering suspended dust inside the shell and preventing dust from spreading throughout the shell. This significantly improves the dust collection coverage, prevents fine dust from accumulating in the working area, ensures a clear field of vision during grinding, and indirectly improves the surface quality of lead screw grinding.

[0020] By adopting a three-stage gradient dust removal structure and a closed-loop airflow system, the dust removal efficiency is greatly improved by achieving layered and graded filtration of metal dust, while maximizing the protection of downstream precision filter components and reducing operation and maintenance costs. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the grinding equipment of the present invention; Figure 2 This is a schematic diagram of the dust removal process of the grinding equipment of the present invention; Figure 3 This is a schematic diagram of the clamping mechanism of the present invention; Figure 4 This is a partial structural schematic diagram of the clamping mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the long plate of the present invention; Figure 6 This is a cross-sectional view of the limiting plate, annular outer cylinder, and positioning block of the present invention; Figure 7 This is a cross-sectional view of the positioning block of the present invention; Figure 8 This is the present invention. Figure 7 Enlarged diagram of area A; Figure 9 This is a schematic diagram of the dust collection hood of the present invention.

[0022] In the diagram: 1. Shell; 10. Circulation chamber; 11. Top plate; 12. Side panel; 13. Bottom plate; 14. Air inlet duct; 15. Air outlet duct; 2. Grinding mechanism; 21. Dust collection hood; 3. Clamping mechanism; 31. X-axis moving module; 32. Y-axis moving module; 4. Output pipeline; 41. Inertial settling separator; 42. Cyclone dust collector; 43. First air pump; 5. Input pipeline; 51. Filter; 52. Second air pump; 6. Support frame; 61. Support plate; 62. Left support; 621. 622. Cylinder; 623. Connecting frame; 624. Drive box; 625. Chuck; 63. Right bracket; 64. Long plate; 646. Slide groove; 647. Slider; 65. Limiting plate; 66. Through groove; 678. Annular outer cylinder; 679. Threaded groove; 670. Positioning block; 671. Positioning groove; 672. Long groove; 673. Spring; 674. Telescopic block; 675. Central shaft; 676. Roller; 677. Airflow channel; 68. Slide plate; 69. Guide frame; 7. Miniature air pump; 8. Pressure relief valve. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-9This invention provides a technical solution: a fully automatic dustproof screw grinding device, including a housing 1. The housing 1 is a closed dustproof protective housing with an overall rectangular box structure. A grinding mechanism 2 is built into the housing 1. The grinding end of the grinding mechanism 2 is equipped with a clamping mechanism 3. The housing 1 includes a top plate 11, four side plates 12, and a bottom plate 13. All plates are sealed together to completely enclose the internal grinding area, preventing dust generated during grinding from escaping. An air inlet pipe 14 is provided on the upper side of the top plate 11 corresponding to the grinding mechanism 2. A dust collection hood 21 is provided on the lower side of the grinding mechanism 2 to collect metal powder dropped during processing. The lower end of the dust collection hood 21... The system is connected to an output pipe 4, and an input pipe 5 is connected to the upper end of an inlet pipe 14. The other ends of the output pipe 4 and the input pipe 5 are connected to a circulation chamber 10. An inertial settling separator 41, a cyclone dust collector 42, and a first air pump 43 are sequentially installed on the output pipe 4. The inertial settling separator 41 is located at the lower outlet of the dust collection hood 21. A filter 51 and a second air pump 52 are installed on the input pipe 5. The filter 51 is located at the outlet of the circulation chamber 10. An exhaust pipe 15 is installed on the inner wall of the top plate 11 corresponding to each dust collection hood 21. The exhaust pipe 15 is connected to the inlet pipe 14. The exhaust pipe 15 is provided with several exhaust ports, which are inclined towards the dust collection hood 21.

[0025] It should be noted that the side panel 12 has corresponding windows on its surface to accommodate the clamping mechanism 3. The dust collection hood 21 is a downward-convex bucket-shaped shell structure, with the hood opening upwards, and the open area aligned with the grinding operation position of the grinding mechanism 2. The inertial settling separator 41 includes multiple sets of baffles to intercept large metal fragments in advance, preventing large particles from directly impacting the downstream filter media, protecting the downstream filter elements, and reducing filter cartridge wear. Specifically, when the dust-laden airflow hits the baffles, the velocity of large metal fragments drops sharply, and they settle into the removable slag collection box below by gravity. The cyclone dust collector 42 is a primary centrifugal filtration mechanism, mainly including a cylinder, a cone, a tangential air inlet, an upper air outlet channel, and a bottom sealed ash hopper. The dust-laden airflow enters tangentially, generating a vortex. Heavier metal dust is thrown against the cylinder wall and settles downwards by centrifugal force; fine dust is carried upwards by the airflow to the downstream fine filtration, separating most of the metal particles and reducing the load on the downstream filter element; the ash hopper can be equipped with a level sensor to indicate slag discharge. The circulation chamber 10 preferably has a built-in temperature control module for adjusting the internal airflow temperature of the circulation chamber 10 according to actual needs.

[0026] Preferably, temperature sensors are respectively installed inside the housing 1 and the circulation chamber 10.

[0027] The clamping mechanism 3 includes an x-axis moving module 31, a y-axis moving module 32 is provided at the drive end of the x-axis moving module 31, a support frame 6 is provided at the drive end of the y-axis moving module 32, a support plate 61 is fixed at the upper end of the support frame 6, a left bracket 62 and a right bracket 63 are respectively connected to both sides of the support plate 61, a cylinder 621 is installed on the outside of the left bracket 62, a connecting frame 622 is fixed at the drive end of the cylinder 621, a drive box 623 is installed on the connecting frame 622, a driver is built into the drive box 623, and a chuck 624 is connected to the driver.

[0028] Furthermore, a long plate 64 is fixed on one side of the connecting frame 622. A groove 641 is provided on the side of the long plate 64 facing the grinding mechanism 2. A slider 642 is slidably arranged in the groove 641. A limiting plate 65 is connected to the surface of the slider 642. A through groove 651 is provided in the center area of ​​the chuck 624 corresponding to the limiting plate 65.

[0029] Furthermore, the limiting plate 65 is rotatably connected to the chuck 624 with an annular outer cylinder 66. The inner diameter of the annular outer cylinder 66 matches the diameter of the through groove 651. The inner wall surface of the annular outer cylinder 66 is provided with a threaded groove 661. A positioning block 67 is provided in the threaded groove 661. A positioning groove 671 is opened in the middle of the positioning block 67. The surface of the positioning block 67 is rotatably engaged with the threaded groove 661. The diameter of the positioning groove 671 matches the diameter of the lead screw.

[0030] Optionally, the upper and lower sides of the slider 642 are respectively provided with slots, and the surface of the slide groove 641 is provided with a retaining strip to cooperate with the slot, and the retaining strip slides in cooperation with the slot.

[0031] In actual operation, the specifications of the positioning groove 671 of the positioning block 67 are adjusted according to the specifications of the lead screw. When installing the positioning block 67, after selecting a suitable positioning block 67, the operator manually screws it into the annular outer cylinder 66 to achieve the connection between the positioning block 67 and the annular outer cylinder 66. By moving the slider 642 within the slide groove 641, the distance between the positioning block 67 and the chuck 624 can be adjusted. The chuck 624 is used to fix one end of the lead screw to be ground, while the positioning block 67 limits the other end of the lead screw according to actual needs. For example, when no limit is needed, the positioning block 67 is moved to a position away from the chuck 624; if end limit is needed, the positioning block 67 is moved to the other end of the lead screw, so that the end of the lead screw extends into the positioning groove 671 and is subject to peripheral limit; if middle limit is needed, the positioning block 67 is moved to the required position of the lead screw. The specific limit position is affected by the grinding position of the lead screw and its own length. The drive box 623 is used to control the lead screw to rotate as needed. If the friction between the lead screw and the positioning groove 671 is less than a certain value, the lead screw will not drive the positioning block 67 and the annular outer cylinder 66 to rotate together when it rotates. If the friction between the lead screw and the positioning groove 671 is greater than or equal to a certain value, the lead screw will drive the positioning block 67 and the annular outer cylinder 66 to rotate synchronously when it rotates.

[0032] Optionally, a sliding plate 68 is connected to the other side of the long plate 64, and the sliding plate 68 slides in engagement with the right bracket 63. When it is necessary to adjust the grinding height of the lead screw, the height of the chuck 624 and the long plate 64 can be adjusted by the telescopic movement of the cylinder 621. The sliding plate 68 is used to limit the side movement of the long plate 64 during lifting and lowering. Specifically, the mating surface between the sliding plate 68 and the right bracket 63 is provided with a corresponding slide rail structure.

[0033] Preferably, the surface of the support frame 6 is fitted with a guide frame 69 to guide the metal powder impurities falling from the upper side to the dust collection hood 21.

[0034] In one embodiment, the inner wall surface of the positioning block 67 has three elongated grooves 672. A spring 673 is connected to the bottom of the elongated groove 672, and a telescopic block 674 is connected to the other end of the spring 673. The telescopic block 674 slides in cooperation with the elongated groove 672. A semi-circular groove is opened on the other side of the telescopic block 674. A central shaft 675 is fixed in the semi-circular groove. A roller 676 is sleeved on the surface of the central shaft 675. The roller 676 rotates in cooperation with the central shaft 675 and the inner wall surface of the semi-circular groove, respectively. The corresponding surface of the roller 676 extends out of the surface of the telescopic block 674. A force sensor is provided at the connection end between the spring 673 and the elongated groove 672 to detect the stretching or expansion deformation of the spring 673.

[0035] Furthermore, the positioning block 67 has an airflow channel 677 corresponding to each long slot 672 inside, and the airflow channel 677 is connected to a miniature air pump 7 through a hose, and a pressure relief valve 8 is installed on the hose.

[0036] It should be further explained that: Under normal conditions, the telescopic block 674, under the action of the spring 673, causes the roller 676 to extend out of the positioning groove 671. When the lead screw extends into the positioning groove 671, the roller 676 is simultaneously squeezed, causing the telescopic block 674 to compress the spring 673 and move into the long groove 672. The roller 676 is used to further limit the lead screw. If clamping the lead screw is not required, the gas in the long groove 672 can be actively extracted by the micro air pump 7, causing the spring 673 to actively compress and drive the roller 676 to retract into the long groove 672. The pressure relief valve 8 is used to release pressure and relieve the negative pressure state in the long groove 672.

[0037] The x-axis moving module 31 and the y-axis moving module 32 adopt, but are not limited to, a motor screw moving structure to control the movement of the support frame 6 in the x and y directions.

[0038] The specific processing method is as follows: Step 1: Workpiece clamping and limit adjustment, completing pre-processing preparation; the operator places the lead screw to be ground in the clamping mechanism 3 position through the window opened in the side panel 12, fixes one end of the lead screw using the chuck 624, and adjusts the distance between the limit plate 65 and the chuck 624 by sliding the slider 642 according to the lead screw length and the grinding position. Matching the positioning block 67 of the corresponding positioning groove 671 specification, the positioning block 67 is manually screwed into the annular outer cylinder 66, so that the end of the lead screw extends into the positioning groove 671 to complete the limit at the other end. At the same time, according to the processing requirements, the air pressure inside the long groove 672 is adjusted by the micro air pump 7 and the pressure relief valve 8 to control the extension and retraction state of the telescopic block 674 and the roller 676, realizing flexible or relaxed limit of the lead screw. The force sensor detects the deformation of the spring 673 in real time, monitors the limit clamping force, and completes the stable clamping of the workpiece.

[0039] Step Two: Equipment pre-start and working condition pre-adjustment to establish a pre-dustproof and temperature-controlled environment; after clamping, the support frame 6 is driven to move by the x-axis moving module 31 and the y-axis moving module 32, causing the lead screw to be processed to precisely approach the working area of ​​the grinding mechanism 2. The temperature sensors inside the housing 1 and the circulation chamber 10 collect the ambient temperature in real time, and calibrate the circulating airflow temperature with the built-in temperature control module of the circulation chamber 10 to match the lead screw grinding process temperature standard. The second air pump 52 is started simultaneously, so that the airflow purified by the filter 51 in the circulation chamber 10 is delivered to the air inlet pipe 14 of the top plate 11 through the input pipe 5, and then blown out through the inclined exhaust port of the exhaust pipe 15, forming a downward air curtain inside the housing 1, pre-sealing the grinding working space and suppressing subsequent dust diffusion.

[0040] Step 3: Precision feeding and grinding, simultaneous initiation of multi-stage dust removal operations; Grinding mechanism 2 starts to grind the lead screw. Metal slag and dust generated during the processing, as well as large particles of impurities, fall directly into the dust collection hood 21 under gravity. The guide frame 69 on the support frame 6 precisely guides the scattered impurities into the dust collection hood 21. At the same time, the first air pump 43 is started, creating a negative pressure inside the output pipeline 4. The dust-laden airflow in the dust collection hood 21 is drawn by the negative pressure and transported to the inertial settling separator 41. Large particles of metal slag are intercepted by multiple sets of internal baffles. After the large mass of debris is decelerated, it settles into the detachable slag collection box below by gravity, completing the pre-separation of coarse particles and preventing large particles of impurities from impacting the downstream filter components.

[0041] Step 4: Refined dust filtration and closed-loop airflow circulation; The dust-laden airflow, after pre-separation by the inertial settling separator 41, enters the cyclone dust collector 42 along the output pipe 4. The dust-laden airflow swirls at high speed through the tangential air inlet. The heavier metal dust is thrown towards the cylinder wall by centrifugal force and falls down to the bottom sealed ash hopper to complete settling. The material level sensor in the ash hopper monitors the amount of slag accumulation in real time. The remaining fine dust flows into the circulation chamber 10 with the airflow. After secondary temperature adjustment by the temperature control module of the circulation chamber 10, it passes through the filter 51 to complete the fine dust filtration and purification. The purified clean airflow is then returned to the inside of the shell 1 through the second air pump 52 and the input pipe 5, forming a continuous closed-loop dust collection circulation.

[0042] Step 5: Dynamic adaptive control of processing conditions to ensure the stability of grinding and dust removal; During the grinding process, the system dynamically adjusts the working conditions in real time by linking various sensors and actuators. Based on the grinding amount of the lead screw and the feed speed, the power of the first air pump 43 and the second air pump 52 is adaptively adjusted to match the real-time dust generation; When the material level sensor detects that the slag accumulation in the ash hopper of the cyclone dust collector 42 reaches the threshold, it triggers a slag discharge prompt and slightly increases the negative pressure at the front end to prevent dust backflow; When the force sensor detects fluctuations in the lead screw limit pressure and increased dust generation due to workpiece vibration, it automatically increases the airflow of the air curtain and the negative pressure of the dust collection hood 21 to enhance the dust collection effect; When the temperature sensor detects abnormal temperature differences in the cavity, the temperature control module corrects the circulating airflow temperature to prevent lead screw thermal deformation and dust adhesion and blockage.

[0043] Step Six: Delayed Dust Removal and Equipment Reset at the End of the Process; After the lead screw grinding operation is completed, the grinding mechanism 2 stops, the clamping mechanism 3 stops feeding and rotating, and the system enters the delayed dust removal mode, continuously maintaining the downward pressure of the air curtain and the negative pressure suction state to thoroughly extract and purify the residual suspended dust inside the shell 1. After the dust removal is completed, the first air pump 43 and the second air pump 52 are turned off in sequence, the temperature control parameters of the circulation chamber 10 are reset, the negative pressure of the long groove 672 is released through the pressure relief valve 8, the structure of the roller 676 is reset, and finally the worker takes out the processed lead screw and cleans the slag collection box of the inertial settling separator 41 and the ash hopper of the cyclone dust collector 42, completing a single complete processing flow.

[0044] Specifically, the dust removal methods are as follows: During the grinding process, some of the metal dust rises upwards, while some falls downwards into the dust collection hood 21 under gravity. The second air pump 52 starts, blowing the airflow purified by the filter 51 in the circulation chamber 10 downwards through several directional air outlets on the exhaust pipe 15 that are inclined towards the dust collection hood 21. This creates a downward-pressure air curtain inside the housing 1, preventing the dust raised during grinding from spreading in all directions inside the housing 1 and driving the suspended dust downwards towards the dust collection hood 21.

[0045] Simultaneously, the first air pump 43 operates, creating a negative pressure in the output pipeline 4. The dust-laden airflow gathered in the dust collection hood 21 is drawn downwards by the negative pressure and enters the inertial settling separator 41. After pre-separation, the airflow continues to enter the cyclone dust collector 42 along the output pipeline 4, and the remaining fine dust continues to be transported backwards with the airflow into the circulation chamber 10.

[0046] The circulating chamber 10 is equipped with a temperature control module, which can adjust the temperature of the incoming airflow. The temperature-adjusted airflow is then further filtered by the filter 51 to remove residual fine dust. The purified airflow is then sent back into the input pipe 5 by the second air pump 52 and flows back into the housing 1, thereby realizing the continuous collection, multi-stage filtration and airflow circulation of dust in the grinding operation area.

[0047] The entire grinding process relies on real-time signal feedback from multiple sensors to achieve adaptive dynamic adjustment of dust removal parameters, precisely matching real-time grinding conditions. 1. The force sensor collects the extension and contraction deformation of the spring 673 in real time, accurately identifies the vibration of the lead screw grinding and the fluctuation of the limit tension. When workpiece shaking or instantaneous dust intensification is detected, the negative pressure suction of the first air pump 43 and the air volume of the second air pump 52 are increased simultaneously to enhance the dust collection capacity of the dust collection hood 21 and suppress the diffusion of disturbed dust. At the same time, the airflow channel 677 of the positioning block 67, together with the micro air pump 7, sucks up the fine dust at the limit contact point to prevent dust from being trapped and causing grinding scratches.

[0048] 2. The temperature sensor monitors the airflow temperature inside the housing 1 and the circulation chamber 10 throughout the process. When the grinding generates heat and causes the cavity temperature to exceed the standard, the temperature control module is activated to cool down and stabilize the voltage to prevent the high temperature from aggravating dust dispersion. When the temperature is low and the airflow is humid, the temperature is raised appropriately to prevent dust from getting damp and adhering to the pipes and filter materials, causing blockage.

[0049] 3. Based on the comprehensive operating condition signals from various sensors, the operating power of the first air pump 43 and the second air pump 52 are adaptively adjusted. Light grinding reduces power to save energy, while heavy grinding increases power to enhance dust removal, thereby achieving a dynamic balance between dust removal efficiency and energy consumption.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] 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 fully automatic dustproof screw grinding device, comprising a housing (1), characterized in that, The housing (1) is a closed dustproof protective housing with an overall rectangular box structure. The housing (1) has a built-in grinding mechanism (2). The grinding end of the grinding mechanism (2) is equipped with a clamping mechanism (3). The housing (1) includes a top plate (11), four side panels (12) and a bottom plate (13). The plates are sealed together. An air inlet pipe (14) is provided on the upper side of the top plate (11) corresponding to the grinding mechanism (2). A dust collection hood (21) is provided on the lower side of the grinding mechanism (2). An output pipe (4) is connected to the lower end of the dust collection hood (21). An input pipe (5) is connected to the upper end of the air inlet pipe (14). The other ends of the output pipe (4) and the input pipe (5) are connected to... There is a circulating chamber (10). An inertial settling separator (41), a cyclone dust collector (42) and a first air pump (43) are sequentially arranged on the output pipe (4). The inertial settling separator (41) is located at the lower outlet of the dust collection hood (21). A filter (51) and a second air pump (52) are arranged on the input pipe (5). The filter (51) is located at the outlet end of the circulating chamber (10). An exhaust pipe (15) is arranged on the inner wall of the top plate (11) corresponding to each dust collection hood (21). The exhaust pipe (15) is connected to the air inlet pipe (14). The exhaust pipe (15) is provided with a number of exhaust ports. The exhaust ports are inclined towards the dust collection hood (21).

2. The fully automatic dustproof screw grinding equipment according to claim 1, characterized in that, The circulation chamber (10) preferably has a built-in temperature control module for adjusting the airflow temperature inside the circulation chamber (10) according to actual needs. Temperature sensors are respectively installed inside the shell (1) and the circulation chamber (10).

3. The fully automatic dustproof screw grinding equipment according to claim 1, characterized in that, The clamping mechanism (3) includes an x-axis moving module (31), the drive end of the x-axis moving module (31) is provided with a y-axis moving module (32), the drive end of the y-axis moving module (32) is provided with a support frame (6), the upper end of the support frame (6) is fixed with a support plate (61), the two sides of the support plate (61) are respectively connected with a left bracket (62) and a right bracket (63), a cylinder (621) is installed on the outside of the left bracket (62), the drive end of the cylinder (621) is fixed with a connecting frame (622), a drive box (623) is installed on the connecting frame (622), the drive box (623) contains a driver, and the driver is connected to a chuck (624).

4. The fully automatic dustproof screw grinding equipment according to claim 3, characterized in that, A long plate (64) is fixed on one side of the connecting frame (622). A groove (641) is provided on the side of the long plate (64) facing the grinding mechanism (2). A slider (642) is slidably arranged in the groove (641). A limiting plate (65) is connected to the surface of the slider (642). A through groove (651) is provided on the limiting plate (65) corresponding to the central area of ​​the chuck (624).

5. The fully automatic dustproof screw grinding equipment according to claim 4, characterized in that, The limiting plate (65) is rotatably connected to an annular outer cylinder (66) on the side facing the chuck (624). The inner diameter of the annular outer cylinder (66) matches the diameter of the through groove (651). A threaded groove (661) is provided on the inner wall surface of the annular outer cylinder (66). A positioning block (67) is provided in the threaded groove (661). A positioning groove (671) is provided in the middle of the positioning block (67). The surface of the positioning block (67) is rotatably engaged with the threaded groove (661). The diameter of the positioning groove (671) matches the diameter of the lead screw.

6. The fully automatic dustproof screw grinding equipment according to claim 4, characterized in that, The slider (642) has slots on its upper and lower sides respectively, and the surface of the slide groove (641) is provided with a strip to cooperate with the slot. The strip slides in cooperation with the slot.

7. The fully automatic dustproof screw grinding equipment according to claim 4, characterized in that, The other side of the long board (64) is connected to a sliding plate (68), which slides in conjunction with the right support (63).

8. The fully automatic dustproof screw grinding equipment according to claim 5, characterized in that, The inner wall surface of the positioning block (67) is provided with three long grooves (672). A spring (673) is connected to the bottom of the long groove (672). The other end of the spring (673) is connected to a telescopic block (674). The telescopic block (674) slides with the long groove (672). A semi-circular groove is provided on the other side of the telescopic block (674). A central shaft (675) is fixed in the semi-circular groove. A roller (676) is sleeved on the surface of the central shaft (675). The roller (676) rotates with the central shaft (675) and the inner wall surface of the semi-circular groove respectively. The corresponding surface of the roller (676) extends out of the surface of the telescopic block (674). A force sensor is provided at the connection end between the spring (673) and the long groove (672).

9. The fully automatic dustproof screw grinding equipment according to claim 8, characterized in that, The positioning block (67) has an airflow channel (677) inside corresponding to each of the long slots (672). The airflow channel (677) is connected to a micro air pump (7) through a hose. A pressure relief valve (8) is provided on the hose.

10. A processing method for a fully automatic dustproof lead screw grinding device, applicable to the fully automatic dustproof lead screw grinding device as described in claim 9, characterized in that, The specific processing method is as follows: Step 1: Workpiece clamping and limit adjustment. According to the processing requirements, the air pressure inside the long groove (672) is adjusted by the micro air pump (7) and the pressure relief valve (8), and the extension and retraction states of the telescopic block (674) and the roller (676) are controlled to realize the flexible limit or relaxation limit of the screw. The force sensor detects the deformation of the spring (673) in real time, monitors the limit clamping force, and completes the stable clamping of the workpiece. Step 2: Equipment pre-start and working condition pre-adjustment, build a pre-dustproof and temperature-controlled environment. After clamping, drive the screw to be processed to accurately approach the working area of ​​the grinding mechanism (2). The temperature sensors inside the housing (1) and the circulation chamber (10) collect the ambient temperature in real time. With the temperature control module built into the circulation chamber (10), the circulating air temperature is calibrated to match the screw grinding process temperature standard. The second air pump (52) is started simultaneously, so that the air purified by the filter (51) in the circulation chamber (10) is delivered to the air inlet pipe (14) of the top plate (11) through the input pipe (5), and then blown out through the inclined exhaust port of the exhaust pipe (15), forming a downward air curtain inside the housing (1) to close the grinding working space in advance and suppress the subsequent dust diffusion. Step 3: Precise feeding and grinding, simultaneous start of multi-stage dust removal operation. The grinding mechanism (2) starts to grind the lead screw. The metal slag and dust generated during the processing, as well as large particles of impurities, fall directly to the dust collection hood (21) under the action of gravity. At the same time, the first air pump (43) is started, so that a negative pressure is formed inside the output pipeline (4). The dust-laden airflow in the dust collection hood (21) is drawn and transported to the inertial settling separator (41) by the negative pressure. Step 4: Fine dust filtration and closed-loop airflow circulation. The dust-laden airflow, after pre-separation by the inertial settling separator (41), enters the cyclone dust collector (42) along the output pipeline (4). The remaining fine dust flows into the circulation chamber (10) with the airflow. After secondary temperature adjustment by the temperature control module of the circulation chamber (10), the fine dust is purified by the filter (51). The purified clean airflow flows back to the inside of the shell (1) through the second air pump (52) and the input pipeline (5), forming a continuous closed-loop dust removal circulation. Step 5: Dynamic adaptive control of processing conditions to ensure the stability of grinding and dust removal. During the grinding process, the working conditions are dynamically adjusted in real time by linking various sensors and actuators. The power of the first air pump (43) and the second air pump (52) is adaptively adjusted according to the grinding amount of the lead screw and the feed speed to match the real-time dust generation. When the force sensor detects the fluctuation of the lead screw limit pressure and the workpiece vibration and dust generation, the air curtain air volume and the negative pressure of the dust collection hood (21) are automatically increased to enhance the dust collection effect. When the temperature sensor detects the abnormal temperature difference in the cavity, the temperature of the circulating airflow is corrected through the temperature control module. Step Six: Delayed dust removal and equipment reset at the end of the process.

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