A cleaning mechanism and online inspection device for shaft-type workpiece inspection.

Abstract

This invention relates to the field of workpiece inspection, and provides a cleaning mechanism and online inspection device for shaft-type workpiece inspection. The cleaning mechanism includes a first dust removal component and a second dust removal component. The first dust removal component has a dust removal box and an air blowing component disposed on the transport path of the workpiece to be inspected. The air blowing component is used to blow air to remove dust from the workpiece. The second dust removal component has a rotating clamping block, a wiping component, and a clamping component disposed on the workpiece transport path. One side of the wiping component abuts against the outer peripheral surface of the workpiece, and the other side abuts against the clamping component. When the rotating clamping block clamps the workpiece and drives it to rotate, the wiping component makes active contact with the outer peripheral surface of the rotating workpiece to wipe and remove dust from the outer peripheral surface of the workpiece. The clamping component keeps the wiping component in contact with the outer peripheral surface of the workpiece. By setting up the first and second dust removal components, a graded and progressive dual dust removal operation is performed on the processed workpiece, thereby thoroughly removing various contaminants from the surface of the workpiece.

Description

Technical Field

[0001] This invention belongs to the field of workpiece inspection, specifically relating to a cleaning mechanism and an online inspection device for shaft-type workpiece inspection. Background Technology

[0002] In the machining process of shaft-type workpieces, after the finishing process, tiny metal dust and iron filings are easily left on the surface. If these machining byproducts are not completely removed, they will directly interfere with the accuracy of subsequent inspection processes, and may even lead to misjudgments, seriously affecting the final quality of the product.

[0003] In existing technologies, a cleaning mechanism is usually installed before the inspection process to ensure inspection accuracy. However, most existing cleaning mechanisms are single-function and typically only use a single dust removal method.

[0004] A common practice is to simply use air blowing for dust removal. This method uses high-pressure airflow to impact the workpiece surface, which can remove most loose dust and debris, but its effectiveness is limited for removing fine dust, oil mixtures, or particles embedded in tiny depressions on the workpiece's machined surface that have strong adhesion.

[0005] Another approach is to simply wipe away dust. While this method can remove stubborn stains through physical contact, in practical applications, if there is too much dust on the workpiece surface, direct wiping can easily cause the wiping material (such as a cloth or sponge) to become dirty quickly. Not only does the cleaning effect diminish significantly over time, but the impurities on the wiping material may also scratch the workpiece surface, and it is difficult to clean complex structures such as threads.

[0006] Therefore, in the existing technology, for shaft-type workpieces that have been processed, the dust removal process is often carried out by only one step, such as blowing air or wiping, which results in incomplete cleaning of the workpiece surface. The residual impurities are very likely to cause misjudgment in subsequent visual inspection or dimensional measurement, thus affecting the product yield. Summary of the Invention

[0007] To address the aforementioned shortcomings of existing technologies, the technical problem to be solved by this invention is to provide a cleaning mechanism and online inspection device for shaft-type workpiece inspection equipment. By setting up a first dust removal component and a second dust removal component, a graded and progressive dual dust removal operation is performed on the processed workpiece. First, air blowing removes loose iron filings and dust from the surface, and then wiping components remove stubborn oil stains and micro-dust, thereby thoroughly removing various contaminants from the surface of the workpiece.

[0008] The technical solution adopted by this invention to solve its technical problem is to propose a cleaning mechanism for a shaft-type workpiece inspection device, comprising: The first dust removal assembly has a dust removal box disposed on the workpiece conveying path and an air blowing component disposed at the discharge end of the dust removal box, the air blowing component being used to blow air to remove dust from the workpiece. The second dust removal assembly has a rotating clamping block, a wiping component, and a pressing component movably disposed on the workpiece conveying path. The rotating clamping block is used to clamp the workpiece and drive the workpiece to rotate around its own axis. The wiping component and the pressing component are movably disposed above the rotating clamping block. One side of the wiping component abuts against the outer peripheral surface of the workpiece, and the other side abuts against the pressing component. When the rotating clamping block clamps the workpiece and drives it to rotate, the wiping member makes active contact with the outer peripheral surface of the rotating workpiece to wipe and remove dust from the outer peripheral surface of the workpiece, and the clamping member is used to keep the wiping member in contact with the outer peripheral surface of the workpiece.

[0009] In the cleaning mechanism of the above-mentioned shaft workpiece inspection device, the second dust removal component further includes: support; A first rotating shaft is rotatably mounted on the bracket, and the wiping element is a flexible wiping strip, one end of which is wound around the first rotating shaft; The second rotating shaft is used to hold the wiping strip after wiping is completed; A first driving member, wherein the second rotating shaft is disposed at the output end of the first driving member, and the first driving member is used to drive the second rotating shaft to rotate; The second driving component is fixedly connected to the output end of the second driving component, and the second driving component is used to drive the clamping component to move up and down in the vertical direction; The third driving component has a movable block fixedly connected to its output end. The rotating clamping block is disposed on the movable block. The third driving component drives the rotating clamping block to clamp or release the workpiece through the movable block. A fourth driving component is fixedly connected to the moving block, and the rotating clamping block is fixedly connected to the output end of the fourth driving component. The fourth driving component is used to drive the rotating clamping block to rotate.

[0010] In the cleaning mechanism of the above-mentioned shaft workpiece inspection device, the second dust removal component further includes: A first guide roller is disposed below the first rotating shaft and moves against the wiping belt to pull the wiping belt below the pressing member; The tensioning wheel is rotatably mounted on the bracket and is positioned opposite to the first guide roller. The wiping belt is movably passed between the first guide roller and the tensioning wheel, and both sides of the wiping belt movably abut against the first guide roller and the tensioning wheel, respectively. A push rod is positioned on the traction path of the wiping belt after wiping is completed and moves against the wiping belt to maintain tension on the wiping belt; An elastic element is disposed on the bracket, with one end of the elastic element abutting against the bracket and the other end abutting against the top rod; The second guide roller, located downstream of the top rod and moving against the wiping belt, is used to pull and guide the wiping belt after wiping to the second rotating shaft.

[0011] In the cleaning mechanism for a shaft-type workpiece inspection device described above, the first dust removal component further includes: A first conveyor belt, at least partially disposed inside the dust collection box and extending at one end outside the dust collection box, is used to receive the workpiece and transport it to a predetermined position. The first pneumatic gripper is movably disposed above the first conveyor belt for gripping the workpiece on the first conveyor belt and transporting it. The fifth driving member has a first movable seat on it, and the first pneumatic gripper is disposed on the first movable seat. The fifth driving member drives the first pneumatic gripper to move in the horizontal direction through the first movable seat. The sixth driving member is disposed on the first movable seat, and the first pneumatic gripper is connected to the output end of the sixth driving member. The sixth driving member is used to drive the first pneumatic gripper to move up and down in the vertical direction. The air blowing component is disposed at the discharge end of the dust collector and has an annular opening for the workpiece to pass through. The inner circumferential surface of the annular opening has an annular air outlet, and the airflow blows air along the annular air outlet onto the outer circumference of the workpiece. The dust collection box is also provided with a dust discharge port on its side wall, which is connected to an external air extraction device through a pipe.

[0012] The technical solution adopted by this invention to solve its technical problem is to also propose an online inspection device for shaft-type workpieces, comprising: The above-mentioned cleaning mechanism for a shaft-type workpiece inspection device; The frame, on which both the first dust removal component and the second dust removal component are mounted; A feeding unit, which is located on the side of the frame, is used to transport the workpiece to be inspected to the first dust removal assembly; The conveying unit is mounted on the frame and has a second pneumatic gripper, a support base, and a swing conveying mechanism. The support base has multiple workstations. The second pneumatic gripper is movably mounted on the side of the air blowing component to grip the workpiece and convey it to the support base. The swing conveying mechanism is mounted on the support base to convey the workpiece on the support base. The inspection unit, which is mounted on the frame, is used to perform visual inspection on the workpiece at the workstation; The sorting unit, located on the side of the support base, is used to classify and sort the workpieces that have completed inspection.

[0013] In the above-described online inspection device for shaft-type workpieces, the feeding unit includes: The second conveyor belt has its discharge end opposite to the feed end of the first conveyor belt, and is used to transport the workpiece onto the first conveyor belt. The first detection device is disposed on the first conveyor belt and is used to detect the load status on the first conveyor belt; A pusher plate, which is movably disposed above the second conveyor belt, is used to push the workpiece on the second conveyor belt; A first collecting element, located to the side of the second conveyor belt, is used to collect the workpieces pushed away by the pusher plate; The seventh driving component is provided, wherein the pusher plate is fixedly connected to the output end of the seventh driving component, and the seventh driving component is electrically connected to the first detection component, for driving the pusher plate to move.

[0014] In the aforementioned online inspection device for shaft-type workpieces, the conveying unit further includes: The eighth driving component is provided with a second movable seat, and the second pneumatic gripper is connected to the second movable seat. The eighth driving component drives the second pneumatic gripper to move in the horizontal direction through the second movable seat. The ninth driving component is disposed on the second movable seat, and the second pneumatic gripper is fixedly connected to the output end of the ninth driving component. The ninth driving component is used to drive the second pneumatic gripper to move up and down in the vertical direction.

[0015] In the above-described online inspection device for shaft-type workpieces, the workpiece is provided with external threads, and the inspection unit includes: The second inspection component is disposed above the support base and is used for visual inspection of the external contour of the workpiece. The third testing component is located above the support base and is used to detect the presence or absence of external threads on the workpiece. The tenth driving member is provided with a third movable seat, and the second detection member is disposed on the third movable seat. The tenth driving member drives the second detection member to move in the vertical direction through the third movable seat to adapt to the detection height of the workpieces of different specifications. A rotating wheel, which is rotatably mounted on the support base and located to the side of the workstation, is used to support the workpiece and drive it to rotate; The eleventh driving component has a pulley assembly connected to its output end. The pulley assembly is connected to the rotating wheel in a transmission connection. The eleventh driving component drives the rotating wheel to rotate through the pulley assembly.

[0016] In the above-described online inspection device for shaft-type workpieces, the sorting unit includes: A third conveyor belt, disposed on the side of the support, is used to receive and transport the defective workpieces that have slipped off the support. A receiving plate, which is movably disposed above the third conveyor belt, is used to receive qualified workpieces that slide off the support. The second collector, located to the side of the third conveyor belt, is used to receive the workpiece that slides off the receiving plate; The twelfth driving component is connected to the output end of the receiving plate, and the twelfth driving component is used to drive the receiving plate to move.

[0017] In the aforementioned online inspection device for shaft-type workpieces, the sorting unit further includes: The third and fourth collecting components are respectively disposed on both sides of the third conveyor belt. The third collecting component is used to receive the workpiece that fails the external contour inspection; the fourth collecting component is used to receive the workpiece that fails the thread inspection. The material distribution plate is movably disposed above the third conveyor belt and between the feed ends of the third and fourth collectors, and is used to push the workpieces on the third conveyor belt into the third or fourth collector respectively. The thirteenth driving component is connected to the output end of the thirteenth driving component, and the thirteenth driving component is used to drive the material distribution plate to move.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) After processing, the workpiece undergoes pre-treatment by air blowing from the first dust removal component and fine treatment by wiping from the second dust removal component. Through the progressive dual dust removal process, the airflow first removes loose iron filings and dust from the surface, and then the wiping component removes stubborn oil stains and micro-dust, thereby thoroughly removing various contaminants from the workpiece surface. This ensures that the workpiece is in a highly clean state when entering the inspection process, effectively avoiding light interference or visual misjudgment caused by surface residues, significantly improving the accuracy and stability of dimensional accuracy and appearance defect detection of shaft workpieces, and thus improving the overall inspection efficiency and product yield.

[0020] (2) In the second dust removal assembly, a floating tensioning mechanism consisting of a top rod and an elastic element is set up to automatically adjust the tension of the wiping belt during the up-and-down movement of the clamping element. This design effectively prevents the wiping belt from breaking due to excessive tightness or slipping and shifting due to excessive looseness caused by asynchronous mechanical actions, thus ensuring the stability of the wiping process.

[0021] (3) This solution integrates the cleaning mechanism directly into the online inspection device. Through the close cooperation of the feeding, conveying, dual dust removal, inspection and sorting units, a fully automated production line operation is achieved from workpiece off-line to finished product sorting. This not only completely eliminates the traditional manual handling and inspection mode, greatly reducing labor intensity and production cycle, but also optimizes the production line layout and conserves production space. At the same time, the workpiece is directly and seamlessly conveyed to the inspection station after dust removal, avoiding the risk of the workpiece re-adsorbing workshop suspended dust and environmental dust due to manual transfer or intermediate stagnation, ensuring the authenticity and validity of the inspection data. Attached Figure Description

[0022] Figure 1 This is a 3D view of the proposed solution.

[0023] Figure 2 yes Figure 1 A 3D view of the hidden part of the structure.

[0024] Figure 3 This is a 3D view of the first dust removal component in this solution.

[0025] Figure 4 This is a 3D view of the air blowing component in this design.

[0026] Figure 5 yes Figure 2 A 3D view of the hidden part of the structure.

[0027] Figure 6 yes Figure 5 A 3D view of the hidden part of the structure.

[0028] Figure 7 This is a 3D view of the feeding unit in this solution.

[0029] Figure 8 yes Figure 2 A 3D diagram that hides another part of the structure.

[0030] Figure 9 This is a perspective view of the air blowing component, the second pneumatic gripper, the eighth driving component, the second moving seat, and the ninth driving component in this solution.

[0031] Figure 10 This is a three-dimensional view of the support base, swing conveying mechanism, and detection unit in this solution.

[0032] Figure 11 This is a 3D view of the support base and sorting unit in this solution.

[0033] Figure 12 yes Figure 11 A 3D view of the hidden part of the structure.

[0034] Figure 13 This is a perspective view of the second collecting component, the receiving plate, and the twelfth driving component in this scheme.

[0035] In the diagram, 100 is the frame; 200 is the first dust removal assembly; 210 is the dust collection box; 211 is the dust discharge port; 220 is the air blowing component; 221 is the annular opening; 230 is the first conveyor belt; 240 is the first pneumatic gripper; 250 is the fifth driving component; 300 is the second dust removal assembly; 310 is the rotating clamping block; 320 is the pressing component; 330 is the bracket; 340 is the first rotating shaft; 350 is the second rotating shaft; 360 is the first driving component; 370 is the second driving component; 380 is the third driving component; 390 is the moving block; 3100 is the fourth driving component; 3200 is the first guide roller; 3300 is the tensioning wheel; 3400 is the top rod; 3500 is the elastic component; 3600 is the second guide roller; 400 is the feeding unit; 410 is the second conveyor belt; and 420 is the first detection component. ; 430, Push plate; 440, First collecting component; 450, Seventh driving component; 500, Conveying unit; 510, Second pneumatic gripper; 520, Support base; 521, Workstation; 522, Inclined slider; 530, Swinging conveying mechanism; 540, Eighth driving component; 550, Second moving seat; 560, Ninth driving component; 600, Detection unit; 610, Second detection component; 620, Third detection component; 630, Tenth driving component; 640, Third moving seat; 650, Rotating wheel; 660, Pulley assembly; 700, Sorting unit; 710, Third conveyor belt; 720, Receiving plate; 730, Second collecting component; 740, Twelfth driving component; 750, Third collecting component; 760, Fourth collecting component; 770, Distributing plate; 780, Thirteenth driving component. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0038] like Figures 1 to 13 As shown, this solution provides a cleaning mechanism for a shaft-type workpiece inspection device, comprising: a first dust removal assembly 200, which has a dust removal box 210 disposed on the workpiece transport path and an air blowing component 220 disposed at the discharge end of the dust removal box 210, the air blowing component 220 being used to blow air to remove dust from the workpiece; a second dust removal assembly 300, which has a rotating clamping block 310, a wiping component, and a pressing component 320 movably disposed on the workpiece transport path, the rotating clamping block 310 being used to clamp the workpiece and drive the workpiece to rotate around its own axis; the wiping component and the pressing component 320 being movably disposed above the rotating clamping block 310, one side of the wiping component abutting against the outer peripheral surface of the workpiece, and the other side abutting against the pressing component 320; wherein, when the rotating clamping block 310 clamps the workpiece and drives it to rotate, the wiping component is in active contact with the outer peripheral surface of the rotating workpiece, for wiping and removing dust from the outer peripheral surface of the workpiece, and the pressing component 320 is used to keep the wiping component in contact with the outer peripheral surface of the workpiece.

[0039] The dust collection box 210 is integrated into the shaft workpiece inspection device, forming a dust removal chamber inside to effectively prevent dust from overflowing and contaminating the inspection environment. The workpiece to be inspected is smoothly fed into the dust collection box 210 along the conveyor line and travels at a constant speed along a preset path inside the dust collection box 210 until it reaches the discharge end. At this time, the air blowing component 220 at the discharge end is activated, and the air blowing component 220 outputs high-pressure clean airflow in a directional manner to sweep away the outer surface of the workpiece. It performs all-round sweeping of the processing residual metal dust, fine iron filings, and loose oil particles attached to the surface of the workpiece, efficiently completing the first pre-treatment dust removal process and removing loose contaminants from the surface of the workpiece.

[0040] After the workpiece has undergone pre-treatment and dust removal by the air blowing component, it is transferred to the location of the second dust removal component 300. It is then clamped by the rotating clamping block 310 and simultaneously driven to rotate at a constant speed around its own axis. During rotation, the wiping component located above the rotating clamping block 310 contacts the outer peripheral surface of the workpiece under the action of the clamping component 320. One side of the wiping component is tightly attached to the outer peripheral surface of the workpiece, while the other side abuts against the clamping component 320. The clamping component locks the wiping component in a tight fit with the outer peripheral surface of the workpiece throughout the process. As the workpiece rotates at a constant speed, the wiping component and the outer peripheral surface of the workpiece form relative rotational friction, effectively removing stubborn oil stains, fine dust, and tiny metal particles attached to the surface of the workpiece that remain after the first dust removal. Especially for the rough surface or textured areas of the workpiece's outer perimeter, the wiping component can penetrate into the gaps between the textures for cleaning, completing a secondary fine wiping and dust removal operation to ensure that the surface cleanliness of the workpiece meets the testing requirements.

[0041] Through the above design, the processed shaft workpieces undergo sequential pre-treatment by air blowing from the first dust removal component 200 and fine wiping treatment by the second dust removal component 300. This progressive dual dust removal process thoroughly removes various contaminants from the workpiece surface before transferring it to the subsequent inspection process. At this point, the workpiece surface is highly clean, effectively preventing interference with inspection data due to residual dust and iron filings. This ensures the accuracy and stability of dimensional precision inspection and appearance defect detection for shaft workpieces, reduces the false judgment rate caused by incomplete cleaning, and improves overall inspection efficiency and product yield.

[0042] Furthermore, the second dust removal assembly 300 also includes: a bracket 330; a first rotating shaft 340, rotatably mounted on the bracket 330, the wiping element being a flexible wiping strip, one end of which is wound around the first rotating shaft 340 as an unwinding end; a second rotating shaft 350, the end of the wiping strip away from the first rotating shaft 340 being wound around the second rotating shaft 350 as a winding end, the second rotating shaft 350 being used to house the wiping element after wiping; a first driving member 360, the second rotating shaft 350 being disposed at the output end of the first driving member 360, the first driving member 360 being used to drive the second rotating shaft 350 to rotate; the second driving member 360... 70. The clamping member 320 is fixedly connected to the output end of the second driving member 370. The second driving member 370 is used to drive the clamping member 320 to move up and down in the vertical direction. The third driving member 380 has a moving block 390 fixedly connected to its output end. The rotating clamping block 310 is set on the moving block 390. The third driving member 380 drives the rotating clamping block 310 to clamp or release the workpiece through the moving block 390. The fourth driving member 3100 is fixedly connected to the moving block 390. The rotating clamping block 310 is fixedly connected to the output end of the fourth driving member 3100. The fourth driving member 3100 is used to drive the rotating clamping block 310 to rotate.

[0043] The wiping strip is preferably made of non-woven fabric; the clamping element 320 is preferably made of sponge; by using sponge as the clamping element 320, its elastic properties allow the wiping strip to fit tightly against the outer circumferential surface of the workpiece. Even if there are minor irregularities or diameter tolerances on the workpiece surface, the elastic compression of the sponge ensures that the wiping strip maintains uniform contact pressure with the workpiece surface throughout the entire process, thereby achieving wiping without dead angles and improving the thoroughness of cleaning. The first driving element 360 and the fourth driving element 3100 can be a rotary motor or a rotary cylinder; the second driving element 370 and the third driving element 380 can be a motor, a hydraulic cylinder, or a pneumatic cylinder.

[0044] A rotating clamping block 310 is provided on both sides of the workpiece along its axial direction, and each rotating clamping block corresponds to a third driving component 380. After the workpiece completes the air blowing dust removal of the first dust removal component 200, it is transported to the location of the second dust removal component 300; the two third driving components 380 are activated simultaneously, driving the corresponding moving blocks 390 to move horizontally, thereby causing the rotating clamping blocks 310 on both sides to abut against the two ends of the workpiece along its axial direction; after the rotating clamping blocks 310 clamp the workpiece, the second driving component 370 drives the pressing component 320 to descend vertically until the wiping belt contacts the outer peripheral surface of the workpiece and remains in contact; at the same time, the fourth driving component... When 3100 is started, the rotating clamping block 310 is driven to rotate, thereby causing the workpiece to rotate around its own axis. At this time, the workpiece rotates at a preset speed under the drive of the rotating clamping block 310, and the clamping member 320 makes the wiping member abut against the outer peripheral surface of the workpiece. As the workpiece rotates at a uniform speed, the wiping member and the outer peripheral surface of the workpiece form relative rotational friction, wiping and removing dust from the workpiece. At the same time, the first driving member 360 drives the second rotating shaft 350 to rotate, thereby pulling the wiping belt, so that the wiping belt in contact with the workpiece always remains clean.

[0045] By setting the first driving component 360 to drive the second rotating shaft 350 (rewinding shaft) to rotate, continuous traction and renewal of the flexible wiping belt are achieved. During the workpiece rotation wiping process, the used, dust-laden wiping belt is promptly rolled away, and new clean wiping belt is continuously replenished to the contact area. This effectively avoids the problems of "secondary pollution" or "getting dirtier with each wipe" caused by the saturation of dust accumulation in traditional fixed wiping blocks, ensuring continuous and efficient cleaning of the workpiece's outer peripheral surface.

[0046] The first dust removal component 200 and the second dust removal component 300 work together in a "blowing then wiping" process. The blowing process removes most of the loose metal dust and iron filings, while the wiping process removes residual fine particles and oil stains. This combined cleaning method significantly improves the cleanliness of the workpiece, providing an ideal optical or contact environment for subsequent online inspection, fundamentally eliminating detection misjudgments caused by impurities obstructing the view, and ensuring the accuracy of the inspection data.

[0047] Furthermore, the second dust removal assembly 300 also includes: a first guide roller 3200, which is disposed below the first rotating shaft 340 and movably abuts against the wiping belt, for pulling the wiping belt below the pressing member 320; a tensioning wheel 3300, rotatably disposed on the bracket 330 and opposite to the first guide roller 3200, the wiping belt movably passing between the first guide roller 3200 and the tensioning wheel 3300, with its two sides movably abutting against both to form a bent section, thereby increasing the unwinding resistance and preventing... The wiping belt is designed to prevent slack. A top rod 3400 is positioned on the traction path of the wiping belt after wiping and moves against the wiping belt to maintain tension. An elastic element 3500 is mounted on a bracket 330, with one end abutting against the bracket 330 and the other end abutting against the top rod 3400. A second guide roller 3600 is located downstream of the top rod 3400 and moves against the wiping belt to pull and guide the wiped belt to the second rotating shaft 350.

[0048] One end of the wiping belt is wound around the first rotating shaft 340. After being guided by the first guide roller 3200 and the tensioning wheel 3300, it is guided to the bottom of the clamping member 320 to contact the workpiece. After wiping, the wiping belt is guided by the top rod 3400 and the second guide roller 3600 in sequence, and finally wound around the second rotating shaft 350. In the initial state, the wiping belt and the clamping member 320 are located above the workpiece conveying path.

[0049] When the clamping member 320 drives the wiping belt to descend vertically towards the workpiece, the descent of the wiping belt causes the push rod 3400 to compress the elastic member 3500, thus maintaining the tension of the wiping belt. After wiping the workpiece, the first driving member 360 stops driving the second rotating shaft 350, and the second driving member 370 drives the clamping block to rise to the initial position, thus removing the pressure of the wiping member on the push rod 3400. The elastic member 3500 then recovers its elastic deformation, causing the push rod 3400 to rise to the initial position, maintaining the tension of the wiping belt. Preferably, the elastic member 3500 is a spring.

[0050] By setting up a floating tensioning mechanism consisting of a top rod 3400 and an elastic element 3500, the tension of the wiping belt can be automatically adjusted during the up-and-down movement of the clamping member 320. When the clamping member 320 descends, the top rod 3400 is dynamically tightened; when the clamping member 320 rises to reset, the elastic element 3500 rebounds to compensate. This design effectively prevents the wiping belt from breaking due to excessive tightness or slipping and shifting due to excessive looseness caused by asynchronous mechanical actions, ensuring the stability of the wiping process. In addition, the relative arrangement of the tensioning wheel 3300 and the first guide roller 3200 ensures that the wiping belt immediately forms a pre-tensioned bending and threading path after leaving the unwinding shaft. This pre-tension effectively prevents the wiping belt from "unwinding too fast" or "piling up" due to inertia or gravity during the unwinding process, ensuring the stability of the unwinding end and thus ensuring the neatness of the final winding onto the second rotating shaft 350.

[0051] The first dust removal assembly 200 further includes: a first conveyor belt 230, a first pneumatic gripper 240, a fifth drive member 250, a sixth drive member, an air blowing member 220, and a dust discharge port 211. The first conveyor belt 230 is at least partially disposed inside the dust removal box 210, with one end extending outside the dust removal box 210, for receiving the workpiece to be inspected and conveying it to a predetermined gripping position inside the dust removal box 210; the first pneumatic gripper 240 is movably disposed above the first conveyor belt 230 for gripping the workpiece on the first conveyor belt 230; the fifth drive member 250 is provided with a first movable seat, and the first pneumatic gripper 240 is mounted on the first movable seat, and the fifth drive member 250 drives the first pneumatic gripper 240 to move horizontally through the first movable seat; the sixth drive member is disposed on the first movable seat, and the first pneumatic gripper 240 is connected to the output end of the sixth drive member, and the sixth drive member is used to drive the first pneumatic gripper 240 to move vertically.

[0052] The air blowing component 220 is installed at the discharge end of the dust collection box 210 and has an annular opening 221 for the workpiece to pass through. The inner circumferential surface of the annular opening 221 is provided with an annular air outlet, and the airflow blows air along the annular air outlet to the outer circumference of the workpiece. A dust discharge port 211 is also provided on the side wall of the dust collection box 210, and the dust discharge port 211 is connected to an external air extraction device through a pipe.

[0053] The processed workpiece to be inspected is conveyed along the transport path to the first conveyor belt 230, which transports the workpiece to a predetermined position within the dust collection box 210. When the workpiece reaches the gripping position of the first pneumatic gripper 240, the sixth drive unit is activated, causing the first pneumatic gripper 240 to descend and grip the workpiece. Subsequently, the sixth drive unit reverses its direction, causing the first pneumatic gripper 240 and the workpiece to rise to a preset height. Simultaneously, the fifth drive unit 250 is activated, causing the first moving seat, the sixth drive unit, the first pneumatic gripper 240, and the gripped workpiece to move horizontally until one end of the workpiece passes through the annular opening 221 of the air blowing component 220 located at the outlet end of the dust collection box 210. At this time, the annular air outlet on the inner wall of the annular opening 221 blows air to remove dust from the outer periphery of the workpiece. The annular air outlet is tilted at a preset angle relative to the workpiece's travel direction, creating an air knife effect. This causes metal dust and iron filings blown off the workpiece's outer surface to fall into the dust collection box 210. Subsequently, an external extraction device sucks out the metal dust and iron filings from the dust collection box 210 through the dust discharge port 211. The external extraction device can be a dust extraction fan.

[0054] The fifth driving component 250 is preferably a servo motor, which can drive the first moving seat to move horizontally and precisely adjust the horizontal gripping position of the first pneumatic gripper 240 according to the size and specifications of the workpiece to adapt to workpieces of different lengths; the sixth driving component can be a motor, hydraulic cylinder or pneumatic cylinder.

[0055] The air blowing component 220 features a ring-shaped air outlet design, with the airflow direction tilted opposite to the workpiece's travel direction. This design creates a strong shearing airflow, similar to an "air knife," which can peel away stubborn metal dust and iron filings adhering to the workpiece surface with greater impact force. The counter-tilted angle design allows the airflow to sweep along the tangential direction of the workpiece surface, effectively preventing dust from forming dead corners on the workpiece surface and improving the thoroughness of cleaning.

[0056] The dust discharge port 211 on the side wall of the dust collector 210 is connected to an external air extraction device, creating a negative pressure dust removal environment. While the air blowing component 220 blows the workpiece, the external air extraction device promptly sucks away the raised dust and iron filings. This "blowing and suction combination" method ensures both the blowing force and prevents dust from spreading within the dust collector 210 or re-settling on the workpiece, ensuring the cleanliness of the workpiece before entering the next process, while also protecting the workshop environment.

[0057] This solution also proposes an online inspection device for shaft-type workpieces, including a cleaning mechanism for shaft-type workpiece inspection devices as described above, and further including: a frame 100, a feeding unit 400, a conveying unit 500, an inspection unit 600, and a sorting unit 700.

[0058] The first dust removal assembly 200 and the second dust removal assembly 300 are both mounted on the frame 100; the loading unit 400 is located on the side of the frame 100 and is used to transport the workpiece to be inspected to the first dust removal assembly 200; the conveying unit 500 is mounted on the frame 100 and has a second pneumatic gripper 510, a support base 520 and a swing conveying mechanism 530, with multiple workstations 521 on the support base 520; the second pneumatic gripper 510 is movably mounted on the side of the air blowing component 220 and is used to grip the workpiece that has completed air blowing dust removal and transport it to the support base 520; the swing conveying mechanism 530 is mounted on the support base 520 and is used to transport the workpiece on the support base 520; the detection unit 600 is mounted on the frame 100 and is used to perform visual inspection on the workpieces at the workstations 521; the sorting unit 700 is located on the side of the support base 520 and is used to classify and sort the workpieces that have completed inspection.

[0059] During operation, the loading unit 400 is connected to the processing equipment. Processed workpieces are directly conveyed to the loading unit 400, which then conveys the workpieces to be inspected to the first dust removal assembly 200 for air-blowing dust removal. After air-blowing dust removal, the second pneumatic gripper 510 in the conveying unit 500 clamps the workpiece passing through the annular opening 221 of the air-blowing component 220 and conveys it to station 521 on the support base 520. Subsequently, the swing conveying mechanism 530 operates, transferring the air-blown dust-removed workpiece to station 521 corresponding to the second dust removal assembly 300, where the second dust removal assembly 300 wipes the workpiece to remove dust. After two dust removal processes, the workpiece is further conveyed by the swing conveying mechanism 530 to station 521 corresponding to the inspection unit 600, where the inspection unit 600 performs visual inspection to determine whether the workpiece is qualified. Finally, the workpieces that have completed the inspection are transported to the end of the support base 520 by the swing conveyor mechanism 530. The workpieces slide down the support base 520 to the sorting unit 700, where the sorting unit 700 sorts and collects the workpieces according to the inspection results.

[0060] Through the close cooperation of the feeding unit 400, conveying unit 500, first dust removal component 200, second dust removal component 300, detection unit 600, and sorting unit 700, a fully automated production line operation is achieved from workpiece unloading, dust removal, detection, and sorting. This completely eliminates the traditional manual handling and inspection methods, significantly reduces labor intensity, and substantially improves the inspection cycle time and production efficiency of shaft-type workpieces.

[0061] Furthermore, in this solution, the cleaning mechanism is directly integrated into the online inspection device for shaft-type workpieces, eliminating the need for a separate, well-organized workshop area. This significantly optimizes the production line layout and efficiently utilizes production space. Workpieces undergo dual dust removal in a progressive, step-by-step manner via the first dust removal component 200 and the second dust removal component 300 before being directly transported to the downstream inspection process. The entire process involves no manual secondary handling, avoiding the risk of workpieces re-adsorbing suspended dust, fine iron filings, and environmental impurities during the post-cleaning transfer process. This design eliminates the problem of secondary contamination of clean workpieces at the source, ensuring that workpieces are clean before entering the inspection process and effectively preventing interference with inspection data due to dust and iron filings obscuring inspection points. This significantly improves the accuracy and stability of dimensional precision and appearance defect detection for shaft-type workpieces, perfectly adapting to fully automated continuous production lines for batch shaft parts, and meeting the demands of high-efficiency, high-precision, and unmanned closed-loop mass production.

[0062] Further, the feeding unit 400 includes: a second conveyor belt 410, a first detection element 420, a pusher plate 430, a first collector 440, and a seventh drive element 450. The discharge end of the second conveyor belt 410 is opposite to the feed end of the first conveyor belt 230, and is used to transport workpieces onto the first conveyor belt 230; the first detection element 420 is disposed on the first conveyor belt 230, and is used to detect whether the first conveyor belt 230 is full; the pusher plate 430 is movably disposed above the second conveyor belt 410; the first collector 440 is located on the side of the second conveyor belt 410, and is used to collect workpieces pushed away by the pusher plate 430; the seventh drive element 450 is electrically connected to the first detection element 420, and the pusher plate 430 is fixedly connected to the output end of the seventh drive element 450, and the seventh drive element 450 is used to drive the pusher plate 430 to move along a direction perpendicular to the conveying direction.

[0063] Workpieces processed on the processing equipment are directly transported to the second conveyor belt 410, whose outlet end is aligned with the inlet end of the first conveyor belt 230. The workpieces are conveyed along the second conveyor belt 410 onto the first conveyor belt 230. The first detection element 420 is located near the inlet end of the first conveyor belt 230 and monitors the feeding status of the first conveyor belt 230 in real time. When the first detection element 420 detects that the first conveyor belt 230 is full or blocked, the seventh drive element 450 is activated, driving the pusher plate 430 to move, thereby pushing the workpieces on the second conveyor belt 410 into the first collection element 440 for temporary storage, preventing workpieces from stacking or colliding.

[0064] When the first detection element 420 detects that there are no workpieces remaining on the first conveyor belt 230, the seventh drive element 450 stops driving, and the workpieces on the second conveyor belt 410 continue to flow to the first conveyor belt 230 for subsequent dust removal, inspection, and sorting processes. Workpieces in the first collection element 440 can be temporarily stored and later repositioned onto the second conveyor belt 410 manually or through automated return equipment for replenishment. The first detection element 420 is preferably a photoelectric sensor. When the first conveyor belt 230 is full, the workpiece will stop at the detection position of the first detection element 420. That is, the photoelectric sensor continuously receives a signal for a preset time, or the workpiece fails to pass through the detection area on time, thus determining a full-load state.

[0065] Through the intelligent linkage between the first detection element 420 and the seventh driving element 450, the feeding unit 400 can accurately identify the load status of the first conveyor belt 230. Once the first conveyor belt 230 is detected to be full or the workpiece is stopped, the system immediately activates the pusher plate 430 to divert the excess workpiece into the first collecting element 440. This mechanism effectively prevents rigid collisions, stacking, or squeezing of workpieces on the conveyor line, and greatly reduces the risk of surface impact damage caused by feeding congestion for shaft-type workpieces with high surface precision requirements.

[0066] Furthermore, the conveying unit 500 also includes: an eighth drive member 540, on which a second movable seat 550 is disposed, and a second pneumatic gripper 510 is connected to the second movable seat 550. The eighth drive member 540 drives the second pneumatic gripper 510 to move horizontally through the second movable seat 550; and a ninth drive member 560, which is disposed on the second movable seat 550, and the second pneumatic gripper 510 is fixedly connected to the output end of the ninth drive member 560. The ninth drive member 560 is used to move the second pneumatic gripper 510 vertically.

[0067] The first pneumatic gripper 240 in the dust collector 210 drives the workpiece through the annular opening 221 on the air blowing component 220 and sends one end of the workpiece out of the dust collector 210. When the end of the workpiece is transported to the preset gripping position below the second pneumatic gripper 510, the ninth drive component 560 is activated, driving the second pneumatic gripper 510 to descend to the gripping height. The second pneumatic gripper 510 clamps the workpiece carried by the first pneumatic gripper 240, and then the first pneumatic gripper 240 releases the workpiece.

[0068] Next, the eighth drive unit 540 is activated, causing the second moving seat 550, the ninth drive unit 560, the second pneumatic gripper 510, and the gripped workpiece to move horizontally until the workpiece is completely released from the annular opening 221 of the air blowing unit 220. Subsequently, the eighth drive unit 540 continues to move the second pneumatic gripper 510 and the gripped workpiece horizontally to directly above the support seat 520. The ninth drive unit 560 then drives the second pneumatic gripper 510 to descend again until the workpiece is stably placed on the support seat 520, at which point the second pneumatic gripper 510 releases the workpiece.

[0069] Subsequently, the swing conveying mechanism 530, mounted on the support base 520, transports the workpiece on the support base 520. The specific structure of the swing conveying mechanism 530 and its method of transporting the workpiece are prior art and will not be described in detail here.

[0070] The eighth drive component 540 is preferably a servo motor to achieve high-precision horizontal movement control. During the workpiece dust removal and handover process, the fifth drive component 250 drives the first pneumatic gripper 240 to move horizontally to push the workpiece, while the eighth drive component 540 drives the second pneumatic gripper 510 to move horizontally to receive the workpiece. Through coordinated control, the workpiece can pass smoothly at a preset speed when passing through the annular opening 221 of the air blowing component 220, thereby ensuring that the annular air outlet performs uniform and efficient air blowing dust removal on the outer periphery of the workpiece. The ninth drive component 560 can be a motor, hydraulic cylinder, or pneumatic cylinder.

[0071] Through the coordinated operation of the first pneumatic gripper 240 and the second pneumatic gripper 510, a "handshake" handover of the workpiece is achieved between the dust removal station 521 and the conveying station 521. The first pneumatic gripper 240 is responsible for accurately feeding the workpiece into the annular opening 221 of the air blowing component 220 for all-round blowing, while the second pneumatic gripper 510 is responsible for quickly taking over after one end of the workpiece extends. This relay-style conveying method ensures that the workpiece passes through the annular opening 221 during air blowing dust removal and that the workpiece can be quickly removed after dust removal.

[0072] Furthermore, the workpiece is provided with external threads. The detection unit 600 includes: a second detection element 610, a third detection element 620, a tenth driving element 630, a rotating wheel 650, and an eleventh driving element. The second detection element 610 and the third detection element 620 are both disposed above the support base 520 and are used for visual inspection of the external contour and external threads of the workpiece, respectively. The tenth driving element 630 is provided with a third movable base 640. The second detection element 610 is mounted on the third movable base 640. The tenth driving element 630 drives the second detection element 610 to move vertically through the third movable base 640 to adapt to the detection height of workpieces of different specifications. Preferably, the second detection element 610 and the third movable base 640 are connected by a hinge structure, and their tilt angle can be finely adjusted by adjusting the connecting bolts to match the optimal shooting angle.

[0073] A rotating wheel 650 is rotatably mounted on a support base 520 and located to the side of the workstation 521. It supports the workpiece and drives its rotation. An eleventh driving component has a pulley assembly 660 connected to its output end. The pulley assembly 660 is drively connected to the rotating wheel 650. The eleventh driving component drives the rotating wheel 650 to rotate via the pulley assembly 660, which in turn causes the workpiece placed on the rotating wheel 650 to rotate around its own axis through friction. The specific structure of the pulley assembly 660 and the method by which it drives the rotating wheel 650 to rotate are prior art and will not be described further here.

[0074] After the workpiece has been wiped clean by the second dust removal component 300, it is first transported by the swing conveyor mechanism 530 to the station 521 corresponding to the second inspection component 610. At this time, the workpiece is placed on the rotating wheel 650, and the eleventh drive component is activated, driving the rotating wheel 650 to rotate through the pulley assembly 660, thereby causing the workpiece to rotate along its axis. At the same time, the second inspection component 610 performs a full-circumference visual inspection of the outer contour of the rotating workpiece.

[0075] During this process, the system controls the tenth driving component 630 to move according to the specific size parameters of the workpiece, and drives the second detection component 610 to move vertically to the optimal detection height through the third moving seat 640; at the same time, the tilt angle of the second detection component 610 connected to the third moving seat 640 can be finely adjusted according to the detection requirements.

[0076] After the workpiece has been inspected by the second inspection piece 610, it is transported by the swing conveyor mechanism 530 to the station 521 corresponding to the third inspection piece 620. The third inspection piece 620 performs visual inspection on the presence or absence of external threads on the workpiece. Since the external threads are a structure continuously distributed along the outer periphery of the workpiece, the workpiece does not need to rotate during the inspection process. The second and third inspection pieces 610 and 620 can be industrial cameras or other high-precision visual inspection equipment. The tenth drive piece 630 is preferably a servo motor; the eleventh drive piece is preferably a rotary motor.

[0077] Further, the sorting unit 700 includes: a third conveyor belt 710 disposed on the side of the support base 520 for receiving and transporting defective workpieces that slide off the support base 520; a receiving plate 720 movably disposed above the third conveyor belt 710 for receiving qualified workpieces that slide off the support base 520; a second collector 730 located on the side of the third conveyor belt 710 for receiving workpieces that slide off the receiving plate 720; and a twelfth drive member 740 connected to the output end of the receiving plate 720 for driving the receiving plate 720 to move.

[0078] Furthermore, the sorting unit 700 also includes: a third collecting component 750, a fourth collecting component 760, a sorting plate 770, and a thirteenth driving component 780. The third collecting component 750 and the fourth collecting component 760 are respectively disposed on both sides of the third conveyor belt 710, wherein the third collecting component 750 is used to receive workpieces that fail the external contour inspection, and the fourth collecting component 760 is used to receive workpieces that fail the thread inspection. The sorting plate 770 is movably disposed above the third conveyor belt 710 and located between the feed ends of the third collecting component 750 and the fourth collecting component 760, and is used to push the workpieces on the third conveyor belt 710 into the third collecting component 750 or the fourth collecting component 760 respectively. The thirteenth driving component 780 is connected to the sorting plate 770 and is used to drive the sorting plate 770 to reciprocate along a direction perpendicular to the conveying direction.

[0079] The support base 520 is also equipped with a slanted slider 522. After the workpiece has been inspected, it is transported to the slanted slider 522 by the swing conveyor mechanism 530 and slides down the slanted slider 522 to the sorting unit 700. After the workpiece has been inspected by the inspection unit 600, the swing conveyor mechanism 530 transports the workpiece to the slanted slider 522.

[0080] If the workpiece is qualified: the twelfth driving component 740 is activated, which drives the receiving plate 720 to move below the inclined slider 522. The qualified workpiece slides down the inclined slider 522 to the receiving plate 720 and slides into the second collecting component 730 for collection as the receiving plate 720 moves.

[0081] If the workpiece is defective, the twelfth drive unit 740 remains stationary, and the workpiece slides directly down the inclined slider 522 onto the third conveyor belt 710 below, where it is then sorted according to the defect type: When the workpiece has an unqualified external contour, the thirteenth drive unit 780 first drives the material distribution plate 770 to move to the feeding end side of the fourth collection unit 760. When the third conveyor belt 710 transports the workpiece to the preset position, the thirteenth drive unit 780 starts in reverse and drives the material distribution plate 770 to push the workpiece into the third collection unit 750.

[0082] When the workpiece is defective due to external thread, as the workpiece slides down the inclined slider 522 onto the third conveyor belt 710, the thirteenth drive unit 780 first drives the material distribution plate 770 to move to the feeding end side of the third collection unit 750. When the third conveyor belt 710 transports the workpiece to the preset position, the thirteenth drive unit 780 starts, driving the material distribution plate 770 to push the workpiece into the fourth collection unit 760.

[0083] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0085] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A cleaning mechanism for a shaft-type workpiece inspection device, characterized in that, include: The first dust removal assembly has a dust removal box disposed on the workpiece conveying path and an air blowing component disposed at the discharge end of the dust removal box, the air blowing component being used to blow air to remove dust from the workpiece. The second dust removal assembly has a rotating clamping block, a wiping component, and a pressing component movably disposed on the workpiece conveying path. The rotating clamping block is used to clamp the workpiece and drive the workpiece to rotate around its own axis. The wiping component and the pressing component are movably disposed above the rotating clamping block. One side of the wiping component abuts against the outer peripheral surface of the workpiece, and the other side abuts against the pressing component. When the rotating clamping block clamps the workpiece and drives it to rotate, the wiping member makes active contact with the outer peripheral surface of the rotating workpiece to wipe and remove dust from the outer peripheral surface of the workpiece, and the clamping member is used to keep the wiping member in contact with the outer peripheral surface of the workpiece.

2. The cleaning mechanism for a shaft-type workpiece inspection device as described in claim 1, characterized in that, The second dust removal component also includes: support; A first rotating shaft is rotatably mounted on the bracket, and the wiping element is a flexible wiping strip, one end of which is wound around the first rotating shaft; The second rotating shaft is used to hold the wiping strip after wiping is completed; A first driving member, wherein the second rotating shaft is disposed at the output end of the first driving member, and the first driving member is used to drive the second rotating shaft to rotate; The second driving component is fixedly connected to the output end of the second driving component, and the second driving component is used to drive the clamping component to move up and down in the vertical direction; The third driving component has a movable block fixedly connected to its output end. The rotating clamping block is disposed on the movable block. The third driving component drives the rotating clamping block to clamp or release the workpiece through the movable block. A fourth driving component is fixedly connected to the moving block, and the rotating clamping block is fixedly connected to the output end of the fourth driving component. The fourth driving component is used to drive the rotating clamping block to rotate.

3. The cleaning mechanism for a shaft-type workpiece inspection device as described in claim 2, characterized in that, The second dust removal component also includes: A first guide roller is disposed below the first rotating shaft and moves against the wiping belt to pull the wiping belt below the pressing member; The tensioning wheel is rotatably mounted on the bracket and is positioned opposite to the first guide roller. The wiping belt is movably passed between the first guide roller and the tensioning wheel, and both sides of the wiping belt movably abut against the first guide roller and the tensioning wheel, respectively. A push rod is positioned on the traction path of the wiping belt after wiping is completed and moves against the wiping belt to maintain tension on the wiping belt; An elastic element is disposed on the bracket, with one end of the elastic element abutting against the bracket and the other end abutting against the top rod; The second guide roller, located downstream of the top rod and moving against the wiping belt, is used to pull and guide the wiping belt after wiping to the second rotating shaft.

4. The cleaning mechanism for a shaft-type workpiece inspection device as described in claim 1, characterized in that, The first dust removal component also includes: A first conveyor belt, at least partially disposed inside the dust collection box and extending at one end outside the dust collection box, is used to receive the workpiece and transport it to a predetermined position. The first pneumatic gripper is movably disposed above the first conveyor belt for gripping the workpiece on the first conveyor belt and transporting it. The fifth driving member has a first movable seat on it, and the first pneumatic gripper is disposed on the first movable seat. The fifth driving member drives the first pneumatic gripper to move in the horizontal direction through the first movable seat. The sixth driving member is disposed on the first movable seat, and the first pneumatic gripper is connected to the output end of the sixth driving member. The sixth driving member is used to drive the first pneumatic gripper to move up and down in the vertical direction. The air blowing component is disposed at the discharge end of the dust collector and has an annular opening for the workpiece to pass through. The inner circumferential surface of the annular opening has an annular air outlet, and the airflow blows air along the annular air outlet onto the outer circumference of the workpiece. The dust collection box is also provided with a dust discharge port on its side wall, which is connected to an external air extraction device through a pipe.

5. An online inspection device for shaft-type workpieces, characterized in that, include: A cleaning mechanism for a shaft-type workpiece inspection device according to any one of claims 1 to 4; The frame, on which both the first dust removal component and the second dust removal component are mounted; A feeding unit, which is located on the side of the frame, is used to transport the workpiece to be inspected to the first dust removal assembly; The conveying unit is mounted on the frame and has a second pneumatic gripper, a support base, and a swing conveying mechanism. The support base has multiple workstations. The second pneumatic gripper is movably mounted on the side of the air blowing component to grip the workpiece and convey it to the support base. The swing conveying mechanism is mounted on the support base to convey the workpiece on the support base. The inspection unit, which is mounted on the frame, is used to perform visual inspection on the workpiece at the workstation; The sorting unit, located on the side of the support base, is used to classify and sort the workpieces that have completed inspection.

6. The online inspection device for shaft-type workpieces as described in claim 5, characterized in that, The feeding unit includes: The second conveyor belt has its discharge end opposite to the feed end of the first conveyor belt, and is used to transport the workpiece onto the first conveyor belt. The first detection device is disposed on the first conveyor belt and is used to detect the load status of the first conveyor belt; A pusher plate, which is movably disposed above the second conveyor belt, is used to push the workpiece on the second conveyor belt; A first collecting component, located to the side of the second conveyor belt, is used to collect the workpieces pushed away by the pusher plate; The seventh driving component is provided, wherein the pusher plate is fixedly connected to the output end of the seventh driving component, and the seventh driving component is electrically connected to the first detection component, for driving the pusher plate to move.

7. The online inspection device for shaft-type workpieces as described in claim 5, characterized in that, The transport unit also includes: The eighth driving component is provided with a second movable seat, and the second pneumatic gripper is connected to the second movable seat. The eighth driving component drives the second pneumatic gripper to move in the horizontal direction through the second movable seat. The ninth driving component is disposed on the second movable seat, and the second pneumatic gripper is fixedly connected to the output end of the ninth driving component. The ninth driving component is used to drive the second pneumatic gripper to move up and down in the vertical direction.

8. The online inspection device for shaft-type workpieces as described in claim 5, wherein the workpiece is provided with external threads, characterized in that, The detection unit includes: The second inspection component is disposed above the support base and is used for visual inspection of the external contour of the workpiece. The third testing component is located above the support base and is used to detect the presence or absence of external threads on the workpiece. The tenth driving member is provided with a third movable seat, and the second detection member is disposed on the third movable seat. The tenth driving member drives the second detection member to move in the vertical direction through the third movable seat to adapt to the detection height of the workpieces of different specifications. A rotating wheel, which is rotatably mounted on the support base and located to the side of the workstation, is used to support the workpiece and drive it to rotate; The eleventh driving component has a pulley assembly connected to its output end. The pulley assembly is connected to the rotating wheel in a transmission connection. The eleventh driving component drives the rotating wheel to rotate through the pulley assembly.

9. The online inspection device for shaft-type workpieces as described in claim 5, characterized in that, The sorting unit includes: A third conveyor belt, located on the side of the support, is used to receive and transport the defective workpieces that have slipped off the support. A receiving plate, which is movably disposed above the third conveyor belt, is used to receive qualified workpieces that slide off the support. The second collector, located to the side of the third conveyor belt, is used to receive the workpiece that slides off the receiving plate; The twelfth driving component is connected to the output end of the receiving plate, and the twelfth driving component is used to drive the receiving plate to move.

10. The online inspection device for shaft-type workpieces as described in claim 9, characterized in that, The sorting unit also includes: The third and fourth collecting components are respectively disposed on both sides of the third conveyor belt. The third collecting component is used to receive the workpiece that fails the external contour inspection; the fourth collecting component is used to receive the workpiece that fails the thread inspection. The material distribution plate is movably disposed above the third conveyor belt and between the feed ends of the third and fourth collectors, and is used to push the workpieces on the third conveyor belt into the third or fourth collector respectively. The thirteenth driving component is connected to the output end of the thirteenth driving component, and the thirteenth driving component is used to drive the material distribution plate to move.

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