Visual inspection platform for axial flow fan blade

Abstract

The utility model relates to the technical field of fan blade detection, in particular to a visual inspection platform of an axial-flow fan blade, which comprises an operation table, a rotary table, a feeding and discharging mechanism and a visual inspection mechanism, the feeding and discharging mechanism and the visual inspection mechanism are mounted around the rotary table, a correction component is further mounted on the operation table, and a plurality of convex edges are formed on the outer side of the rotary table. And a limiting part is fixed on the convex edge. According to the visual detection platform of the axial flow fan blade, a product is transferred to the correction assembly through the feeding end of the feeding and discharging mechanism, the direction of the product is adjusted to be consistent with the direction of the limiting part through the correction assembly, then the product is transferred to the limiting part, and then the rotary table rotates to move to the position below the visual detection mechanism to complete detection of blade damage of the product. And meanwhile, the rotating group can drive the product to rotate through the limiting part, so that the upper surface and the lower surface of the blade can be synchronously detected, the detection efficiency is improved, the detection stability can be improved, and different blanking can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fan blade detection, in particular to a visual detection platform for axial flow fan blades. Background Art

[0002] When an axial flow fan is operating, the blades push air in the same direction as the axis, hence the name. Axial flow fans are categorized as large, medium, and small. The appropriate fan type is chosen based on the intended location. Axial flow fans are typically molded in one piece.

[0003] Traditional axial flow fan blade inspection methods usually rely on manual visual inspection. The results of manual inspection are easily affected by personal experience and technical level, resulting in unstable inspection results. Manual inspection is slow and cannot meet the needs of large-scale production. Long-term manual inspection will cause fatigue of the inspectors, thus affecting the inspection accuracy. Utility Model Content

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a visual inspection platform for axial flow fan blades, comprising an operating table, a turntable mounted at the center of the operating table, and a loading and unloading mechanism and a visual inspection mechanism mounted around the turntable, a calibration assembly also mounted on the operating table, a plurality of convex edges formed on the outer side of the turntable, and a limit portion fixed on the convex edges;

[0005] The visual inspection mechanism includes a vertical platform and a lifting part fixed on the operating table. The vertical platform is equipped with a lifting part. A guide plate is fixed to the lifting end of the lifting part. Multiple upper visual inspection devices are installed at the bottom of the guide plate. A bottom plate is installed at the top of the lifting part. A lower visual inspection device is also installed on the bottom plate. A rotating group is installed between the guide plate and the bottom plate.

[0006] Furthermore, the lifting part is two upward pushing cylinders fixed on the operating table, the piston rods of the upward pushing cylinders are fixed to the base plate, and the lifting part includes a downward pressing cylinder installed on the top of the vertical platform and two guide rods fixed on the upper top, and the guide plate is fixed to the piston rod of the downward pressing cylinder and is slidably connected to the guide rods.

[0007] Furthermore, the rotating group includes a follower turntable rotatably connected to the guide plate, and a rotating motor installed at the bottom of the base plate, and a rotating shaft penetrating the base plate is fixed to the rotating end of the rotating motor.

[0008] Furthermore, the loading and unloading mechanism includes two vertical plates fixed on the operating table, a pushing cylinder is installed on one side of the vertical plate, and a pushing plate is slidably connected to the other side and fixed with the piston rod of the pushing cylinder, a lower pushing cylinder is installed on the pushing plate, and a lower pushing plate is slidably fixed with the piston rod of the lower pushing cylinder, and multiple suction cups are installed on the lower pushing plate.

[0009] Furthermore, the loading and unloading mechanism includes two vertical plates fixed on the operating table, a pushing cylinder is installed on one side of the vertical plate, and a pushing plate is slidably connected to the other side and fixed with the piston rod of the pushing cylinder, a lower pushing cylinder is installed on the pushing plate, and a lower pushing plate is slidably fixed with the piston rod of the lower pushing cylinder, and multiple suction cups are installed on the lower pushing plate.

[0010] Furthermore, the correction component includes a base fixed on the operating table below one of the push-down plates, a correction motor is installed on the inner side of the base, and a supporting plate is rotatably connected to the top and fixed to the rotating end of the correction motor.

[0011] Furthermore, a plurality of V-shaped limit blocks are fixed to the bottom of the turntable, a plate is fixed on the operating table, a propulsion cylinder and a sleeve block are installed on the plate, a stop block fixed to the ejection end of the propulsion cylinder is slid on the inner side of the sleeve, and the top of the stop block is triangular.

[0012] Furthermore, the operating table is also equipped with an upper cylinder and a slide, a servo motor is installed on the piston rod of the upper cylinder, an upper plate is fixed to the rotating end of the servo motor, and a suction cup 2 is installed on the bottom of the upper plate.

[0013] Furthermore, the limiting portion includes a platform fixed on the turntable, a rotating block is rotatably connected to the platform, and two limiting rods are fixed on the top of the rotating block.

[0014] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0015] The visual inspection platform of the axial flow fan blade transfers the product to the correction component through the loading end of the loading and unloading mechanism, adjusts the direction of the product to be consistent with the direction of the limit part through the correction component, and then transfers it to the limit part. Then, the turntable rotates and moves to the bottom of the visual inspection mechanism to complete the inspection of the product blade damage. At the same time, the rotating group can drive the product to rotate through the limit part, so that the upper and lower surfaces of the blade can be synchronously inspected to improve the inspection efficiency, while also improving the inspection stability and distinguishing the unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the loading and unloading mechanism in the utility model;

[0018] Figure 3 A three-dimensional diagram of the correction component in the present invention;

[0019] Figure 4 A three-dimensional diagram of the visual detection mechanism in the present utility model;

[0020] Figure 5This is a three-dimensional bottom view of the connection structure between the neutral platform and the turntable of the utility model.

[0021] In the figure: 1. Operating table; 2. Loading and unloading mechanism; 201. Vertical plate; 202. Push plate; 203. Push-down cylinder; 204. Push-down plate; 206. Shelf plate; 207. Sleeve; 208. Sleeve rod; 209. Anti-collision plate; 210. Spring; 211. Suction cup 1; 212. Push cylinder; 3. Calibration assembly; 301. Base; 302. Calibration motor; 303. Carrying plate; 4. Visual inspection mechanism; 401. Vertical table; 402. Push-down cylinder; 40 3. Guide rod; 404. Guide plate; 405. Follow-up turntable; 406. Upper visual inspection device; 407. Bottom plate; 408. Lower visual inspection device; 409. Push cylinder; 410. Rotating motor; 411. Rotating shaft; 5. Upper cylinder; 6. Upper plate; 7. Suction cup 2; 8. Turntable; 9. Table; 10. Rotating block; 11. Limit rod; 12. Plate; 13. Push cylinder; 14. Bushing block; 15. Stop block; 16. Servo motor; 17. Limit block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5 In this embodiment, a visual inspection platform for axial flow fan blades includes an operating table 1, a turntable 8 is installed at the center of the operating table 1, and a loading and unloading mechanism 2, a visual inspection mechanism 4 and a correction component 3 are fixed around the turntable 8. The outer side of the turntable 8 is formed with a plurality of square protruding ends arranged at equal distances, and a limiting part is installed on the protruding end. The loading and unloading mechanism 2 is divided into a loading part and a unloading part, and the correction component 3 is located below the loading part. The visual inspection mechanism 4 is divided into an upper viewing part and a lower viewing part, and a rotating group that can drive the limiting part to rotate is also installed between the upper viewing part and the lower viewing part.

[0024] In the above structure, the product can be transferred to the correction component through the loading part in the loading and unloading mechanism, and the correction component can rotate the product so that the product is aligned with the corresponding limit part, which can facilitate the loading part to move the product to the upper limit of the limit part. Then the turntable rotates, and the product will move between the upper viewing part and the lower viewing part. The upper viewing part and the lower viewing part can press the product on the limit part, and the limit part is driven to rotate by the rotation group, so that the product moves with it. At the same time, under the action of the upper and lower viewing parts, the product blades can be fully inspected to see if they are damaged. Therefore, there is no need to flip the product over for re-inspection, which can save a lot of time and is suitable for mass production. At the same time, it can also improve the stability of the inspection, and finally the product unloading is completed through the unloading part.

[0025] The limiting portion comprises a platen 9 fixed to the protruding end of the turntable 8. A rotating block 10 is rotatably connected to the platen 9. There is resistance to rotation between the rotating block 10 and the platen 9. Two limiting rods 11 are fixed to the top of the rotating block 10, which can extend into the threaded holes of the product. By inserting the limiting rods into the threaded holes of the product, the product can be limited in position. At the same time, under the action of external force, the rotating block can be rotated and adjusted, and the product can also rotate together.

[0026] In addition, a plurality of V-shaped concave limit blocks 17 are fixed to the bottom of the turntable 8. A plate 12 is fixed to the operating table 1. A sleeve block 14 and a propulsion cylinder 13 are fixed to the plate 12. A stopper 15 that can extend to the concave surface of the limit block 17 is passed through the sleeve block 14. The head end of the stopper 15 is triangular, and one side of the stopper 15 is fixed to the piston rod of the propulsion cylinder 13. When the turntable drives the product to move to a certain position, the propulsion cylinder will drive the stopper to slide in the sleeve block until it extends into the concave surface of the limit block, thereby limiting the position of the turntable and preventing deviation during loading and unloading or inspection.

[0027] like Figure 1 and 2 ,by Figure 2In the direction shown, the loading part and the unloading part both include a vertical plate 201 fixed on the operating table 1, a pushing cylinder 212 is installed on the back of the vertical plate 201, and a pushing plate 202 fixed to the piston rod of the pushing cylinder 211 is sliding on the front, a lower pushing cylinder 203 is installed on the top of the pushing plate 202, and a lower pushing plate 204 fixed to the piston rod of the lower pushing cylinder 203 is slidingly connected to the front, two suction cups 211 are fixed on the bottom of the lower pushing plate 204 of the loading part, and a suction cup 211 is fixed on the bottom of the lower pushing plate 204 of the unloading part. By pushing the cylinder to drive the pushing plate to move back and forth, the position of the lower push plate can be adjusted so that the suction cup can be located above the product. The product can be lowered or lifted up by the operation of the push cylinder. Therefore, one of the suction cups on the loading part can adsorb the product and place it on the correction component, and the other suction cup can transfer the corrected product to the turn block. The loading operation is completed by connecting with the limit rod. At the same time, the suction cup on the unloading part can complete the product unloading operation alone, thereby realizing automatic loading and unloading operations.

[0028] Among them, two frame plates 206 are fixed to the bottom of the lower push plate 204 of the loading part, and a frame plate 206 is fixed to the lower push plate 204 of the unloading part. Multiple sleeves 207 are fixed at the center of the bottom of the frame plate 206. A sleeve rod 208 is passed through the inner side of the sleeve 207. An anti-collision plate 209 above the sleeve 207 is fixed to the outer side of the sleeve rod 208. The anti-collision plate 209 is made of rubber. The outer side of the sleeve rod 208 is sleeved with a spring 210 below the sleeve 207. The bottoms of the four sleeve rods 208 are fixed to a suction cup 211. When the push-down cylinder drives the push-down plate to press down, and at the same time, the suction cup 1 contacts the product, the push-down cylinder can continue to press down, so that the suction cup 1 fits the product more closely, improving the adsorption effect, and at the same time, it will push the suction cup 1 to move up. At the same time, the upward movement of the sleeve rod squeezes the spring to play a buffering role. When the push-down cylinder is reset, the elastic force of the spring also drives the suction cup 1 to reset. Under the action of the anti-collision plate, it can limit the sleeve rod and reduce the noise caused by the collision.

[0029] like Figure 3 The calibration assembly 3 includes a base 301 fixed to the operating table 1. The base 301 is located below the suction cup 1 211 on the left side of the loading section. A calibration motor 302 is installed inside the base 301, and a carrier plate 303 is rotatably connected to the top. The center of the carrier plate 303 protrudes upward, and the top is fixed to the rotating end of the calibration motor 302. When the loading section transfers the product to the turn block for placement, one of the limit parts will be opposite to the calibration assembly, so the calibration motor will drive the carrier plate to rotate, causing the product on the carrier plate to move with it until the screw hole of the product is rotated to the same direction as the upper limit rod on the turn block, thereby completing the calibration process of the product. At the same time, it also facilitates the loading section to smoothly place the product on the turn block to complete the loading operation.

[0030] like Figure 4 In the direction shown, the upper viewing section includes a stand 401 fixed to the operating table 1. A downward-pressing cylinder 402 and two guide rods 403 fixed to the upper wall of the stand 401 are mounted on the top of the stand 401. The piston rod of the downward-pressing cylinder 402 passes through the stand 401 and is fixed to a guide plate 404 that slides with the guide rods 403. The bottom of the guide plate 404 is mounted with multiple upper visual inspection devices 406. When the product moves under the guide plate via the turntable, the downward-pressing cylinder drives the guide plate downward, and the guide rods improve the stability of the guide plate's upward and downward movement. After the guide plate moves to the appropriate position, the upper visual inspection device can be used to inspect the upper part of the product's blades for damage.

[0031] The lower viewing section includes two upward-thrusting cylinders 409 mounted on the bottom of the operating table 1. A base plate 407 is fixed between the piston rods of the two upward-thrusting cylinders 409. Multiple lower visual inspection devices 408 are mounted on the base plate 407. The upward-thrusting cylinders can move the base plate up and down, allowing the lower visual inspection devices to face the bottom of the product blades for damage detection.

[0032] In addition, the rotation group includes a follower turntable 405 rotatably connected to the guide plate 404. The bottom plate 407 is pyramid-shaped, with a rotating motor 410 installed at the bottom and a rotating shaft 411 fixed to the rotating end of the rotating motor 410 at the top. By moving the guide plate downward, it can push and rotate to press the product downward, and then the bottom plate moves upward, allowing the rotating shaft to pass through the turntable, table, and rotating block to closely contact the bottom of the follower turntable. The rotating motor then rotates, and the close contact between the rotating shaft and the follower turntable drives the rotating block to rotate. Therefore, the upper and lower visual inspection devices can fully detect damage on the product leaves.

[0033] Finally, the operating table 1 is also equipped with an upper cylinder 5 and a slide. The piston rod of the upper cylinder 5 is equipped with a servo motor 16. The rotating end of the servo motor 16 is fixed to the upper plate 6, and the bottom of the upper plate 6 is equipped with a second suction cup 7. When the product fails the inspection, the upper cylinder is lifted up, and the servo motor drives the upper plate to rotate, so that the second suction cup moves to the top of the product. The upper cylinder then pushes down, so that the second suction cup is tightly attached to the product. The product is then moved to the top of the slide by the upper cylinder and the servo unit, so that the unqualified product can be removed.

[0034] The working principle of the above embodiment is:

[0035] First, the pushing cylinder in the feeding part drives the pushing plate to move back and forth, so that the left suction cup 1 can be located above the product, and the downward push cylinder pushes down to make the suction cup 1 contact with the product and at the same time pushes the sleeve rod upward to squeeze the spring, so that the product and the suction cup 1 fit more closely and have a better adsorption effect, and then the pushing cylinder and the downward push cylinder cooperate to move the product to the carrier plate and place it, and then the correction motor rotates to align the product and the turn block, and then the right suction cup 1 can move the product to the top of the turn block and engage with the limit rod to limit the position, and then the turntable is used to move the product between the upper visual inspection device and the upper and lower visual inspection devices, and the downward push cylinder and the upward push cylinder operate synchronously, which can drive the guide plate and the bottom plate to move until the follow-up turntable presses the product down, and at the same time the shaft moves upward and is aligned with the bottom of the follow-up turntable. Closely adhere, and then the motor rotates, which can drive the follow-up turntable to rotate, and at the same time drive the product to rotate through the turn block, and then complete the upper and lower overall inspection of the product blades through the upper visual inspection device and the upper and lower visual inspection devices. When each link is not reached, the propulsion cylinder will drive the block to extend into the limit block to limit the turntable. When the inspection is completed and qualified, the turntable will drive the product to the unloading part, and the product is removed by repeating the above-mentioned operation of the loading part. When the product is unqualified, the upper cylinder drives the upper plate to move to the appropriate height, and drives the suction cup 2 to move to the top of the product through the servo motor. After the suction cup 2 is driven by the upper cylinder to move down and adsorb the product, it is lifted to separate the product from the turn block, and then the servo motor rotates to move it to the slide to move it out, so it can also realize the operation of distinguishing unloading.

[0036] In summary, automation can simultaneously reduce manual labor, and can detect groove damage on the upper and lower sides of the product blades at one time, thereby effectively improving the efficiency of detection, and can also improve the stability of detection through automation.

[0037] The entire workflow is complete, and all contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] It should be noted that in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual inspection platform for axial flow fan blades, characterized by: The invention comprises an operating table (1), a turntable (8) is installed at the center of the operating table (1), and a loading and unloading mechanism (2) and a visual detection mechanism (4) are installed around the turntable (8). A correction component (3) is also installed on the operating table (1). A plurality of convex edges are formed on the outer side of the turntable (8), and a limiting portion is fixed on the convex edges. The visual inspection mechanism (4) comprises a stand (401) fixed on the operating table (1) and a lifting part, the stand (401) is equipped with a lifting part, a guide plate (404) is fixed to the lifting end of the lifting part, a plurality of upper visual inspection devices (406) are installed at the bottom of the guide plate (404), a bottom plate (407) is installed at the top of the lifting part, a lower visual inspection device (408) is also installed on the bottom plate (407), and a rotating group is installed between the guide plate (404) and the bottom plate (407).

2. The visual inspection platform for axial flow fan blades according to claim 1, characterized in that: The lifting part is composed of two upward pushing cylinders (409) fixed on the operating table (1), and the piston rods of the upward pushing cylinders (409) are fixed to the bottom plate (407). The lifting part includes a downward pressing cylinder (402) installed on the top of the vertical platform (401) and two guide rods (403) fixed on the top. The guide plate (404) is fixed to the piston rod of the downward pressing cylinder (402) and is slidably connected to the guide rods (403).

3. The visual inspection platform for axial flow fan blades according to claim 2, characterized in that: The rotating group includes a follower turntable (405) rotatably connected to the guide plate (404), and a rotating motor (410) installed at the bottom of the base plate (407). The rotating end of the rotating motor (410) is fixed with a rotating shaft (411) penetrating the base plate (407).

4. The visual inspection platform for axial flow fan blades according to claim 1, characterized in that: The loading and unloading mechanism (2) comprises two vertical plates (201) fixed on the operating table (1), a pushing cylinder (212) is installed on one side of the vertical plate (201), and a pushing plate (202) is slidably connected to one side and fixed with the piston rod of the pushing cylinder (212), a lower pushing cylinder (203) is installed on the pushing plate (202), and a lower pushing plate (204) is slidably fixed with the piston rod of the lower pushing cylinder (203), and a plurality of suction cups (211) are installed on the lower pushing plate (204).

5. The visual inspection platform for axial flow fan blades according to claim 4, characterized in that: A plurality of racks (206) are fixed to the bottom of the push-down plate (204), a plurality of sleeves (207) are fixed to the bottom of the plurality of racks (206), a sleeve rod (208) is slid on the inner side of the sleeve (207), an anti-collision plate (209) located above the sleeve (207) and a spring (210) sleeved below the sleeve (207) are fixed on the outer side of the sleeve rod (208), and the suction cup (211) is fixed to the sleeve rod (208).

6. The visual inspection platform for axial flow fan blades according to claim 5, characterized in that: The correction assembly (3) comprises a pedestal (301) fixed to the operating table (1) below one of the push-down plates (204), a correction motor (302) being mounted on the inner side of the pedestal (301), and a carrier plate (303) being rotatably connected to the top and fixed to the rotating end of the correction motor (302).

7. The visual inspection platform for axial flow fan blades according to claim 1, characterized in that: A plurality of V-shaped limit blocks (17) are fixed to the bottom of the table of the turntable (8); a plate (12) is fixed on the operating table (1); a propulsion cylinder (13) and a sleeve block (14) are installed on the plate (12); a stop block (15) fixed to the ejection end of the propulsion cylinder (13) is slidably provided on the inner side of the sleeve block (14); and the top of the stop block (15) is triangular.

8. The visual inspection platform for axial flow fan blades according to claim 1, characterized in that: The operating table (1) is also equipped with an upper cylinder (5) and a slideway, a servo motor (16) is installed on the piston rod of the upper cylinder (5), a rotating end of the servo motor (16) is fixed with an upper plate (6), and a suction cup 2 (7) is installed at the bottom of the upper plate (6).

9. The visual inspection platform for axial flow fan blades according to claim 1, characterized in that: The limiting part comprises a table plate (9) fixed on the turntable (8), a rotating block (10) is rotatably connected to the table plate (9), and two limiting rods (11) are fixed on the top of the rotating block (10).

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