Visual inspection equipment for cross-flow fan blade

Abstract

The utility model discloses visual inspection equipment for cross-flow fan blades, which comprises a rack, and a conveying device, a rotating device and a visual inspection device are arranged on the rack. The rotating device comprises a clamping rotating assembly and a bearing assembly, the conveying device can convey the cross-flow fan blade to the position between the clamping rotating assembly and the bearing assembly, the clamping rotating assembly is provided with a rotating clamping part, the bearing assembly is provided with a bearing part, and the rotating clamping part can clamp one end of the cross-flow fan blade and drive the cross-flow fan blade to rotate. The bearing part can bear the other end of the cross-flow fan blade; the visual detection device comprises a detection camera, and the detection camera is used for shooting images of the cross-flow fan blade placed between the rotary clamping part and the bearing part. According to the visual inspection equipment, through conveying, clamping, supporting and rotary shooting of the cross-flow fan blades, appearance inspection of the cross-flow fan blades is achieved, the situation that products are manually picked up for visual inspection is not needed, inspection is more unified, the inspection accuracy can be improved, missed inspection and wrong inspection are reduced, and the labor cost is reduced.

Description

Technical Field

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

[0002] The cross-flow fan blade is a core component for generating air volume in air conditioners, household fans, etc. Therefore, it is necessary to detect the cross-flow fan blade. One of the detections is to detect the appearance of the cross-flow fan blade to check whether there are defects on the blades and the disc from the appearance. The current detection of the appearance of the cross-flow fan blade mainly relies on manual picking up of the product for visual inspection. When manually detecting for a long time, it is easy to get tired, and it is more dependent on the experience judgment of the operator. The learning and training time is long, resulting in more defective products due to missed inspections and misjudgments, and the labor cost is relatively high. Content of the Utility Model

[0003] The main purpose of the utility model is to propose a visual detection device for cross-flow fan blades, aiming to solve the technical problems of easy missed inspections and misjudgments and high costs in the prior art when relying on manual visual inspection of cross-flow fan blades.

[0004] To achieve the above purpose, the utility model proposes a visual detection device for cross-flow fan blades, including a frame, on which a conveying device, a rotating device and a visual detection device are provided;

[0005] The conveying device is used for conveying the cross-flow fan blade;

[0006] The rotating device includes a clamping and rotating assembly and a supporting assembly. The conveying device can convey the cross-flow fan blade between the clamping and rotating assembly and the supporting assembly. The clamping and rotating assembly is provided with a rotating clamping part, and the supporting assembly is provided with a supporting part. The rotating clamping part can clamp one end of the cross-flow fan blade and drive the cross-flow fan blade to rotate, and the supporting part can support the other end of the cross-flow fan blade;

[0007] The visual detection device includes at least one detection camera, which is arranged corresponding to the spatial position between the clamping and rotating assembly and the supporting assembly, and the detection camera is used for taking images of the cross-flow fan blade placed between the rotating clamping part and the supporting part.

[0008] The crossflow fan blade to be inspected is transported between the clamping rotating assembly and the supporting assembly by the conveying device. The rotating clamping part of the clamping rotating assembly clamps one end of the crossflow fan blade, and the supporting part of the supporting assembly supports the other end of the crossflow fan blade. Then the rotating clamping part drives the crossflow fan blade to rotate, and the inspection camera takes pictures of the crossflow fan blade at the same time, so that multiple appearance images of the crossflow fan blade at different angles can be obtained for subsequent appearance analysis. This visual inspection equipment realizes the appearance inspection of the crossflow fan blade by conveying, clamping, supporting and rotating the crossflow fan blade. It does not need to rely on manual picking up of the product for visual inspection, making the inspection more unified, improving the accuracy of the inspection, reducing the occurrence of missed inspections and false inspections, and reducing labor costs.

[0009] Preferably, the clamping and rotating assembly includes a first base, the first base is fixedly connected to the frame, the first base is provided with an expansion shaft mechanism, the expansion shaft mechanism is provided with an insertion portion that can expand or contract radially, the insertion portion faces the supporting assembly, the insertion portion can be inserted into the shaft hole at one end of the crossflow fan blade and expand radially to clamp the crossflow fan blade, the rotating clamping portion includes the insertion portion, and the first base is further provided with a rotation driving unit, the rotation driving unit is transmission-connected with the insertion portion and can drive the insertion portion to rotate;

[0010] The first base is also provided with an ejection mechanism, which includes an ejection drive unit and an ejection member, the ejection member is arranged beside the insertion portion and away from the side of the supporting portion, the ejection drive unit is fixed to the first base, the ejection drive unit is in transmission connection with the ejection member, and the ejection drive unit can drive the ejection member to approach or move away from the supporting portion;

[0011] The supporting assembly includes a second base and a third base, the second base is connected to the frame, the third base is slidably connected to the second base, a first mobile driving unit is provided on the second base, the first mobile driving unit is transmission-connected to the third base, the first mobile driving unit can drive the third base to approach or move away from the first base, the supporting portion is provided on the third base, and the supporting portion is used to support the rotating shaft at the other end of the crossflow fan blade;

[0012] The third base is also provided with a pushing mechanism, which includes a pushing drive unit and a pushing piece. The pushing piece is arranged on the side of the supporting portion and away from the insertion portion. The pushing drive unit is fixed on the third base and is transmission-connected with the pushing piece. The pushing drive unit can drive the pushing piece to approach or move away from the insertion portion.

[0013] When the crossflow fan blade is conveyed between the clamping rotating assembly and the supporting assembly, the two ends of the crossflow fan blade are opposite to the insertion part and the supporting part; the first moving drive unit drives the third base, the supporting part and the pushing mechanism to move toward the side close to the clamping rotating assembly, and the pushing drive unit drives the pushing member to move toward the side close to the insertion part. During the movement of the third base, the pushing member pushes the crossflow fan blade toward the insertion part, so that the insertion part is inserted into the axial hole at one end of the crossflow fan blade, and the supporting part moves to the lower side of the rotating shaft at the other end of the crossflow fan blade. Then the pushing drive unit drives the pushing member to move toward the side away from the insertion part, away from the crossflow fan blade to avoid affecting As the crossflow fan blades rotate, the conveying device moves away from the crossflow fan blades; then the insertion part expands in the axial hole of the crossflow fan blades and clamps the crossflow fan blades, and the rotation drive unit drives the insertion part and the crossflow fan blades to rotate for detection; when the detection is completed, the first mobile drive unit drives the third base, the supporting part and the pushing mechanism to move to the side away from the clamping and rotating assembly, the insertion part contracts to release the axial hole, the pushing drive unit drives the pushing member to move to the side close to the supporting part, the pushing member pushes the crossflow fan blades out of the insertion part, and the conveying device receives the crossflow fan blades and conveys them to other positions, thereby realizing the clamping and rotation of the crossflow fan blades by the clamping and rotating assembly and the supporting assembly.

[0014] Preferably, the expansion shaft mechanism includes an insertion shaft, an expansion block and a telescopic shaft, the insertion shaft is rotatably connected to the first base, the telescopic shaft is arranged at the inner side of the insertion shaft and is arranged parallel to the insertion shaft, the telescopic shaft is slidably connected to the insertion shaft along the axial direction, the insertion shaft is provided with a radially arranged slot, the expansion block is slidably connected in the slot, the side of the insertion shaft close to the supporting part is the insertion part, the expansion block is arranged on the insertion part, and an expansion shaft driving unit is also provided on the first base, the expansion shaft driving unit is transmission-connected with the telescopic shaft, the expansion shaft driving unit can drive the telescopic shaft to move axially, the expansion block is provided with a first inclined surface, and the telescopic shaft is provided with a second inclined surface matching the first inclined surface, the telescopic shaft and the expansion block cooperate through the first inclined surface and the second inclined surface, so that the axial movement of the telescopic shaft can drive the expansion block to move radially along the insertion shaft to shrink or protrude from the insertion shaft.

[0015] Preferably, the third base is provided with a first roller and a second roller, with the relative direction of the clamping rotating assembly and the supporting assembly being the left-right direction, the axes of the first roller and the second roller are both along the left-right direction, the first roller and the second roller are arranged front to back, and the recessed position on the upper side between the first roller and the second roller is the supporting portion.

[0016] Preferably, an adjusting mechanism is provided between the second base and the frame. The adjusting mechanism includes an adjusting guide rail and a locking structure. The adjusting guide rail is fixedly connected to the frame and extends along the relative direction of the clamping and rotating assembly and the supporting assembly. The second base is slidably connected to the adjusting guide rail, and the locking structure is connected to the second base. The locking structure can lock the position of the second base on the adjusting guide rail.

[0017] The second base can slide relative to the frame through the adjusting guide rail. The second base can be adjusted closer to or farther from the first base, and the adjusted position of the second base can be locked by the locking structure, that is, the distance between the clamping and rotating assembly and the supporting assembly can be adjusted to adapt to the detection of cross-flow airfoils with different length specifications.

[0018] Preferably, the vision detection device further includes a second moving driving unit. The second moving driving unit is connected to the frame. The detection camera is disposed above the rotating device and on the moving end of the second moving driving unit. The second moving driving unit can drive the detection camera to move along the relative direction of the clamping and rotating assembly and the supporting assembly.

[0019] The second moving driving unit can drive the detection camera to move in the axial direction of the cross-flow airfoil, and detect different positions in the length direction of the cross-flow airfoil during the movement of the detection camera. This can reduce the number of detection cameras and lower the cost.

[0020] Preferably, the vision detection device further includes an upper light source and a lower light source. The upper light source is relatively fixed to the frame and is disposed above the rotating device with its light emitting direction facing downward. The lower light source is disposed on the moving end of the second moving driving unit and on the side of the space between the rotating clamping portion and the supporting portion, and its light emitting direction is towards the space between the rotating clamping portion and the supporting portion.

[0021] The upper light source emits light towards the upper side of the cross-flow airfoil, and the lower light source emits light towards the side of the cross-flow airfoil. The upper light source and the lower light source can increase the light irradiated on the cross-flow airfoil, improve the brightness of the detection area, and make the features on the cross-flow airfoil more obvious in imaging.

[0022] Preferably, the vision detection device further includes a light source lifting driving unit. The light source lifting driving unit is disposed on the moving end of the second moving driving unit, and the lower light source is disposed on the moving end of the light source lifting driving unit. The light source lifting driving unit can drive the lower light source to move up and down.

[0023] During detection, the light source lifting drive unit can drive the lower light source to move downward to the side of the cross-flow impeller to provide illumination; after the detection is completed, the light source lifting drive unit can drive the lower light source to move upward to make room for the cross-flow impeller to send out air.

[0024] Preferably, the conveying device includes a conveying seat, a conveying motor, a driving pulley and a driven pulley. The conveying seat is connected to the frame, the conveying motor is fixedly connected to the conveying seat, the driving pulley and the driven pulley are rotatably connected to the conveying seat. Taking the relative direction of the clamping and rotating assembly and the supporting assembly as the left-right direction, the driving pulley and the driven pulley are arranged in the front-back direction. A conveyor belt is wound around the driving pulley and the driven pulley. The conveying motor is in transmission connection with the driving pulley. The conveyor belt is arranged on the lower side between the rotating clamping part and the supporting part. A plurality of conveying limit grooves are arranged at intervals on the outer surface of the conveyor belt. The conveying limit grooves are used for placing the cross-flow impeller and restricting the front-back position of the cross-flow impeller.

[0025] The conveying device further includes a jacking drive unit and a jacking member. The jacking member is arranged side by side with the conveyor belt. The jacking member is arranged directly below the rotating clamping part and the supporting part. The jacking drive unit is in transmission connection with the jacking member. The jacking drive unit can drive the jacking member to move downward to be lower than the upper side of the conveyor belt or drive the jacking member to move upward to jack up the cross-flow impeller in the conveying limit groove to between the rotating clamping part and the supporting part.

[0026] The cross-flow impeller is placed in the conveying limit groove on the conveyor belt. The conveyor belt conveys the cross-flow impeller to directly below the rotating clamping part and the supporting part, and the cross-flow impeller is on the upper side of the jacking member. Then the jacking drive unit drives the jacking member and the cross-flow impeller to rise. The jacking member jacks up the cross-flow impeller to be directly opposite to the rotating clamping part and the supporting part. Then the rotating clamping part and the supporting part clamp and support the cross-flow impeller, and the jacking member descends away from the cross-flow impeller. After the detection is completed, the jacking member rises again to support the cross-flow impeller, and then the jacking member and the cross-flow impeller descend. The cross-flow impeller falls into the conveying limit groove on the conveyor belt. The conveyor belt conveys the detected cross-flow impeller away and sends the next cross-flow impeller to be detected, so as to realize conveying the cross-flow impeller between the clamping and rotating assembly and the supporting assembly. The plurality of conveying limit grooves on the conveyor belt can continuously load and unload the cross-flow impeller by the movement of the conveyor belt.

[0027] Preferably, the conveying device further includes a feeding driving unit and a feeding member. The feeding member and the conveyor belt are arranged side by side. The feeding member is disposed on the front side or the rear side of the lifting member. The feeding driving unit is in transmission connection with the feeding member. The feeding driving unit can drive the feeding member to move upward to a position higher than the upper side of the conveyor belt or move downward to a position lower than the lower side of the conveyor belt and put the cross-flow air blade down into the conveying limiting groove.

[0028] When loading the cross-flow air blade to be detected, the feeding driving unit can drive the feeding member to rise. The cross-flow air blade to be detected is placed on the feeding member. Then, the feeding member and the cross-flow air blade descend, and the cross-flow air blade falls into the conveying limiting groove of the conveyor belt. The conveyor belt drives the cross-flow air blade to be conveyed to the directly lower side between the rotary clamping portion and the supporting portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0030] Figure 1 is a schematic structural diagram of the vision detection device of the present invention;

[0031] Figure 2 is a schematic structural diagram of the cross-flow air blade between the clamping and rotating assembly and the supporting assembly in the vision detection device of the present invention;

[0032] Figure 3 is a schematic structural diagram of the clamping and rotating assembly of the present invention;

[0033] Figure 4 is a schematic structural diagram of the insertion shaft, the expansion block and the telescopic shaft of the present invention;

[0034] Figure 5 is a schematic structural diagram of the matching position of the expansion block and the telescopic shaft of the present invention;

[0035] Figure 6 is a schematic structural diagram of the supporting assembly of the present invention;

[0036] Figure 7 is a schematic structural diagram of the conveying device of the present invention;

[0037] Figure 8 is a schematic structural diagram of the vision detection device of the present invention.

[0038] In the attached drawings: 1 - frame, 2 - conveying device, 21 - conveying seat, 22 - conveying motor, 23 - driving pulley, 24 - driven pulley, 25 - conveyor belt, 251 - conveying limit groove, 261 - lifting driving unit, 262 - lifting member, 271 - discharging driving unit, 272 - discharging member, 3 - clamping and rotating assembly, 31 - rotating clamping part, 32 - first base, 331 - inserting part, 332 - inserting shaft, 333 - expanding block, 3331 - first inclined surface, 334 - telescopic shaft, 3341 - second inclined surface, 335 - expanding shaft driving unit, 34 - rotating driving unit, 35 - pushing mechanism, 351 - pushing driving unit, 352 - pushing member, 4 - supporting assembly, 41 - supporting part, 411 - first roller, 412 - second roller, 42 - second base, 43 - third base, 44 - first moving driving unit, 45 - pushing-in mechanism, 451 - pushing-in driving unit, 452 - pushing-in member, 46 - adjusting guide rail, 471 - locking rack, 472 - locking driving unit, 5 - vision detection device, 51 - detection camera, 52 - second moving driving unit, 53 - upper light source, 54 - lower light source, 55 - light source lifting driving unit, 6 - cross-flow air impeller.

[0039] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with embodiments. Specific embodiments

[0040] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0041] It should be noted that if there are directional indications involved in the embodiments of the present utility model, such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those skilled in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0043] As Figures 1 to 8 shown, a visual inspection device for a cross-flow fan blade includes a frame 1, and a conveying device 2, a rotating device and a visual inspection device 5 are provided on the frame 1.

[0044] The conveying device 2 is used to convey the cross-flow fan blade 6. The rotating device includes a clamping and rotating assembly 3 and a supporting assembly 4. The clamping and rotating assembly 3 is arranged on the left side of the supporting assembly 4. The conveying device 2 can convey the cross-flow fan blade 6 between the clamping and rotating assembly 3 and the supporting assembly 4. The clamping and rotating assembly 3 is provided with a rotating clamping part 31, and the supporting assembly 4 is provided with a supporting part 41. The rotating clamping part 31 can clamp one end of the cross-flow fan blade 6 and drive the cross-flow fan blade 6 to rotate, and the supporting part 41 can support the other end of the cross-flow fan blade 6.

[0045] The visual inspection device 5 includes at least one detection camera 51. The detection camera 51 is arranged corresponding to the space position between the clamping and rotating assembly 3 and the supporting assembly 4. The detection camera 51 is used to take images of the cross-flow fan blade 6 placed between the rotating clamping part 31 and the supporting part 41.

[0046] The cross-flow fan blade 6 to be detected is conveyed by the conveying device 2 between the clamping and rotating assembly 3 and the supporting assembly 4. Referring to Figure 2 , the axis of the cross-flow fan blade 6 extends left and right. The rotating clamping part 31 of the clamping and rotating assembly 3 clamps one end of the cross-flow fan blade 6, and the supporting part 41 of the supporting assembly 4 supports the other end of the cross-flow fan blade 6. Then the rotating clamping part 31 drives the cross-flow fan blade 6 to rotate, and at the same time the detection camera 51 takes pictures of the cross-flow fan blade 6, and multiple appearance images of different angles of the cross-flow fan blade 6 can be obtained for subsequent appearance analysis. The obtained images can be adaptively analyzed and processed by a visual image processing system. This visual inspection device realizes the appearance inspection of the cross-flow fan blade 6 through the conveying, clamping, supporting and rotating shooting of the cross-flow fan blade 6, does not need to rely on manual picking up of the product for visual inspection, makes the inspection more unified, can improve the accuracy of the inspection, reduce the occurrence of missed inspection and misjudgment, and reduce the labor cost.

[0047] In some specific embodiments, the clamping rotation assembly 3 includes a first base 32, the first base 32 is fixedly connected to the frame 1, the first base 32 is provided with an expansion shaft mechanism, the expansion shaft mechanism is provided with an insertion portion 331 that can expand or contract radially, the insertion portion 331 faces the supporting assembly 4, the insertion portion 331 can be inserted into the shaft hole at one end of the crossflow fan blade 6 and expand radially to clamp the crossflow fan blade 6, the rotating clamping portion 31 includes the insertion portion 331, and the first base 32 is further provided with a rotation driving unit 34, the rotation driving unit 34 is transmission-connected to the insertion portion 331 and can drive the insertion portion 331 to rotate;

[0048] The first base 32 is also provided with an ejection mechanism 35, which includes an ejection drive unit 351 and an ejection member 352. The ejection member 352 is provided beside the insertion portion 331 and away from the supporting portion 41. The ejection drive unit 351 is fixed on the first base 32, and the ejection drive unit 351 is in transmission connection with the ejection member 352. The ejection drive unit 351 can drive the ejection member 352 to approach or move away from the supporting portion 41.

[0049] The supporting assembly 4 includes a second base 42 and a third base 43, the second base 42 is connected to the frame 1, the third base 43 is slidably connected to the second base 42, a first mobile driving unit 44 is provided on the second base 42, the first mobile driving unit 44 is transmission-connected to the third base 43, the first mobile driving unit 44 can drive the third base 43 to approach or move away from the first base 32, and a supporting portion 41 is provided on the third base 43, and the supporting portion 41 is used to support the rotating shaft at the other end of the crossflow fan blade 6;

[0050] A pushing mechanism 45 is also provided on the third base 43, and the pushing mechanism 45 includes a pushing drive unit 451 and a pushing piece 452. The pushing piece 452 is arranged on the side of the supporting portion 41 and away from the insertion portion 331. The pushing drive unit 451 is fixed on the third base 43, and the pushing drive unit 451 is transmission-connected with the pushing piece 452. The pushing drive unit 451 can drive the pushing piece 452 to approach or move away from the insertion portion 331.

[0051] When the crossflow fan blade 6 is transported between the clamping rotation component 3 and the supporting component 4, the two ends of the crossflow fan blade 6 are opposite to the insertion part 331 and the supporting part 41; the first moving drive unit 44 drives the third base 43, the supporting part 41 and the pushing mechanism 45 to move toward the side close to the clamping rotation component 3, and the pushing drive unit 451 drives the pushing member 452 to move toward the side close to the insertion part 331. During the movement of the third base 43, the pushing member 452 pushes the crossflow fan blade 6 toward the insertion part 331, so that the insertion part 331 is inserted into the axial hole at one end of the crossflow fan blade 6, and the supporting part 41 moves to the lower side of the rotating shaft at the other end of the crossflow fan blade 6, and then the pushing drive unit 451 drives the pushing member 452 to move toward the side away from the insertion part 331 away from the crossflow fan blade 6. To avoid affecting the rotation of the crossflow blade 6, the conveying device 2 moves away from the crossflow blade 6; then the insertion portion 331 expands in the shaft hole of the crossflow blade 6 to clamp the crossflow blade 6, and the rotation drive unit 34 drives the insertion portion 331 and the crossflow blade 6 to rotate for detection; when the detection is completed, the first mobile drive unit 44 drives the third base 43, the supporting portion 41 and the pushing mechanism 45 to move to the side away from the clamping rotation component 3, the insertion portion 331 contracts to release the shaft hole, and the push-out drive unit 351 drives the push-out member 352 to move to the side close to the supporting portion 41, and the push-out member 352 pushes the crossflow blade 6 out of the insertion portion 331, and the conveying device 2 receives the crossflow blade 6 and conveys it to other positions, so that the clamping rotation component 3 and the supporting component 4 can clamp and rotate the crossflow blade 6. The push-out drive unit 351, the first mobile drive unit 44 and the push-in drive unit 451 can use a cylinder or other drive mechanism.

[0052] In some specific embodiments, referring to Figures 3 to 5 The expansion shaft mechanism includes an insertion shaft 332, an expansion block 333 and a telescopic shaft 334. The insertion shaft 332 is rotatably connected to the first base 32. The telescopic shaft 334 is arranged on the inner side of the insertion shaft 332 and is arranged parallel to the insertion shaft 332. The telescopic shaft 334 is axially slidably connected to the insertion shaft 332. The insertion shaft 332 is provided with a radially arranged slot, and the expansion block 333 is slidably connected in the slot. The side of the insertion shaft 332 close to the supporting portion 41 is the insertion portion 331. The expansion block 333 is arranged on the insertion portion 331. The first base 32 is also provided with an expansion shaft driving unit 335, and the expansion shaft driving unit 335 is transmission-connected to the telescopic shaft 334. The expansion shaft driving unit 335 can drive the telescopic shaft 334 to move axially, a first inclined surface 3331 is provided on the expansion block 333, and a second inclined surface 3341 matching the first inclined surface 3331 is provided on the telescopic shaft 334. The telescopic shaft 334 and the expansion block 333 cooperate with each other through the first inclined surface 3331 and the second inclined surface 3341, so that the axial movement of the telescopic shaft 334 can drive the expansion block 333 to move radially along the plug-in shaft 332 to shrink or protrude from the plug-in shaft 332. When the expansion block 333 protrudes from the plug-in shaft 332, the axial hole of the cross-flow fan blade 6 can be clamped, and when the expansion block 333 shrinks, the cross-flow fan blade 6 can be loosened.

[0053] The rotation drive unit 34 can adopt a servo motor, which can record the rotation angle of the cross-flow impeller 6 corresponding to the captured image. The rotation drive unit 34 and the insertion shaft 332 can be connected by a transmission structure such as a synchronous belt or a gear. The expansion shaft drive unit 335 can adopt a driving mechanism such as a cylinder. The telescopic shaft 334 and the moving end of the expansion shaft drive unit 335 are axially relatively fixed, and the telescopic shaft 334 is rotationally connected to the moving end of the expansion shaft drive unit 335, so that the rotation of the insertion shaft 332 and the telescopic shaft 334 does not affect the movement of the expansion shaft drive unit 335 driving the telescopic shaft 334.

[0054] In some specific embodiments, referring to Figure 6 , on the third base 43, a first roller 411 and a second roller 412 are provided. The axes of the first roller 411 and the second roller 412 are both in the left-right direction. The first roller 411 and the second roller 412 are arranged front and back. The recessed position on the upper side between the first roller 411 and the second roller 412 is the supporting portion 41.

[0055] The recessed position on the upper side between the first roller 411 and the second roller 412 can support the rotating shaft of the cross-flow impeller 6. The gap between the first roller 411 and the second roller 412 is smaller than the diameter of the rotating shaft of the cross-flow impeller 6. When the cross-flow impeller 6 rotates, the first roller 411 and the second roller 412 will rotate along with the rotating shaft of the cross-flow impeller 6 to reduce the wear on the rotating shaft.

[0056] In some specific embodiments, an adjusting mechanism is provided between the second base 42 and the frame 1. The adjusting mechanism includes an adjusting guide rail 46 and a locking structure. The adjusting guide rail 46 is fixedly connected to the frame 1. The adjusting guide rail 46 extends along the relative direction of the clamping and rotating assembly 3 and the supporting assembly 4. The second base 42 is slidably connected to the adjusting guide rail 46. The locking structure is connected to the second base 42, and the locking structure can lock the position of the second base 42 on the adjusting guide rail 46.

[0057] The second base 42 can slide relative to the frame 1 through the adjusting guide rail 46. The second base 42 can be adjusted to be closer to or farther from the first base 32, and the adjusted position of the second base 42 can be locked through the locking structure, that is, the distance between the clamping and rotating assembly 3 and the supporting assembly 4 can be adjusted to adapt to the detection of cross-flow impellers 6 with different length specifications.

[0058] Further, the locking structure includes a locking rack 471, which is fixedly connected to the frame 1 and extends in the left-right direction. A locking driving unit 472 is provided on the first base 32. A locking tooth block is provided at the moving end of the locking driving unit 472. The locking tooth block is arranged to match the locking rack 471. The locking driving unit 472 can drive the locking tooth block to approach or move away from the locking rack 471. When adjusting the position of the first base 32, the locking tooth block disengages from the locking rack 471; when the locking tooth block approaches the locking rack 471, the position of the first base 32 can be locked by tooth engagement. The locking driving unit 472 can adopt a driving mechanism such as a cylinder. In some other embodiments, the locking structure can also be locked by screws.

[0059] In some specific embodiments, referring to Figure 8 , the vision detection device 5 further includes a second moving driving unit 52, which is connected to the frame 1. The detection camera 51 is arranged above the rotating device and on the moving end of the second moving driving unit 52. The second moving driving unit 52 can drive the detection camera 51 to move in the relative direction of the clamping and rotating assembly 3 and the supporting assembly 4.

[0060] The second moving driving unit 52 can drive the detection camera 51 to move in the axial direction of the cross-flow fan blade 6. During the movement of the detection camera 51, different positions in the length direction of the cross-flow fan blade 6 can be detected, which can reduce the number of detection cameras 51 and lower the cost. In this embodiment, the number of detection cameras 51 is one, and one detection camera 51 moves to multiple positions in the axial direction of the cross-flow fan blade 6 to obtain the overall image of the cross-flow fan blade 6. The second moving driving unit 52 can adopt driving mechanisms such as a lead screw and a rack and pinion.

[0061] In some specific embodiments, the vision detection device 5 further includes an upper light source 53 and a lower light source 54. The upper light source 53 is relatively fixed to the frame 1 and is arranged above the rotating device. The light emitting direction of the upper light source 53 is downward. The upper light source 53 and the detection camera 51 are staggered front and back without blocking the detection camera 51 from photographing the cross-flow fan blade 6. The lower light source 54 is arranged on the moving end of the second moving driving unit 52 and on the side of the space between the rotating clamping part 31 and the supporting part 41. The light emitting direction of the lower light source 54 is towards the space between the rotating clamping part 31 and the supporting part 41.

[0062] The upper light source 53 emits light towards the upper side of the cross-flow fan blade 6, and the lower light source 54 emits light towards the side of the cross-flow fan blade 6. The upper light source 53 and the lower light source 54 can increase the light rays irradiated onto the cross-flow fan blade 6, improve the brightness of the detection area, and make the features on the cross-flow fan blade 6 more obvious in imaging.

[0063] Furthermore, the visual detection device 5 further includes a light source lifting drive unit 55. The light source lifting drive unit 55 is disposed on the moving end of the second moving drive unit 52, and the lower light source 54 is disposed on the moving end of the light source lifting drive unit 55. The light source lifting drive unit 55 can drive the lower light source 54 to move up and down.

[0064] During detection, the light source lifting drive unit 55 can drive the lower light source 54 to move downward to the side of the cross-flow impeller 6 to provide illumination; when the detection is completed, the light source lifting drive unit 55 can drive the lower light source 54 to move upward to vacate space for the cross-flow impeller 6 to send out. The light source lifting drive unit 55 can adopt a driving mechanism such as a cylinder. In some other embodiments, the height of the lower light source 54 can be fixed.

[0065] In some specific embodiments, referring to Figure 7 , the conveying device 2 includes a conveying base 21, a conveying motor 22, a driving pulley 23 and a driven pulley 24. The conveying base 21 is connected to the frame 1, the conveying motor 22 is fixedly connected to the conveying base 21, the driving pulley 23 and the driven pulley 24 are rotatably connected to the conveying base 21, the driving pulley 23 and the driven pulley 24 are arranged in the front-rear direction, a conveyor belt 25 is wound around the driving pulley 23 and the driven pulley 24, the conveying motor 22 is in transmission connection with the driving pulley 23, the conveyor belt 25 is disposed below the lower side between the rotary clamping portion 31 and the supporting portion 41, and a plurality of conveying limit grooves 251 are arranged at intervals on the outer surface of the conveyor belt 25. The conveying limit grooves 251 are used for placing the cross-flow impeller 6 and restricting the front-rear position of the cross-flow impeller 6;

[0066] The conveying device 2 further includes a jacking drive unit 261 and a jacking member 262. The jacking member 262 is arranged side by side with the conveyor belt 25. The jacking member 262 is disposed directly below the lower side between the rotary clamping portion 31 and the supporting portion 41. The jacking drive unit 261 is in transmission connection with the jacking member 262. The jacking drive unit 261 can drive the jacking member 262 to move downward to be lower than the upper side of the conveyor belt 25 or drive the jacking member 262 to move upward to jack up the cross-flow impeller 6 in the conveying limit groove 251 to between the rotary clamping portion 31 and the supporting portion 41.

[0067] The cross-flow impeller 6 is placed in the conveying limit groove 251 on the conveyor belt 25. The conveyor belt 25 conveys the cross-flow impeller 6 backward to the directly lower side between the rotary clamping part 31 and the supporting part 41, and the cross-flow impeller 6 is on the upper side of the lifting member 262. Then, the lifting drive unit 261 drives the lifting member 262 and the cross-flow impeller 6 to rise. The lifting member 262 lifts the cross-flow impeller 6 to be directly opposite to the rotary clamping part 31 and the supporting part 41. Then, the rotary clamping part 31 and the supporting part 41 clamp and support the cross-flow impeller 6, and the lifting member 262 descends away from the cross-flow impeller 6. After the detection is completed, the lifting member 262 rises again to support the cross-flow impeller 6. Then, the lifting member 262 and the cross-flow impeller 6 descend, and the cross-flow impeller 6 falls into the conveying limit groove 251 of the conveyor belt 25. The conveyor belt 25 conveys the detected cross-flow impeller 6 backward and feeds the next cross-flow impeller 6 to be detected, so as to realize the conveyance of the cross-flow impeller 6 between the clamping and rotating assembly 3 and the supporting assembly 4. Multiple conveying limit grooves 251 on the conveyor belt 25 can continuously load and unload the cross-flow impeller 6 by the movement of the conveyor belt 25. The lifting drive unit 261 can adopt a driving mechanism such as a cylinder. In some other embodiments, the conveying device can also adopt a manipulator or other motion modules, as long as it can clamp the cross-flow impeller between the clamping and rotating assembly 3 and the supporting assembly 4.

[0068] Further, there are two conveyor belts 25, which are arranged left and right. The two conveyor belts 25 can support the left and right sides of the cross-flow impeller 6. The distance between the two conveyor belts 25 can be adjusted. One conveyor belt 25 is fixed in the left-right direction, and the other conveyor belt 25 can move left and right following the second base 42 to adjust its position.

[0069] Further, the conveying device 2 further includes a feeding drive unit 271 and a feeding member 272. The feeding member 272 is arranged left and right with the conveyor belt 25. The feeding member 272 is arranged on the front side of the lifting member 262. The feeding drive unit 271 is in transmission connection with the feeding member 272. The feeding drive unit 271 can drive the feeding member 272 to move upward to a position higher than the upper side of the conveyor belt 25 or move downward to a position lower than the lower side of the conveyor belt 25 and put down the cross-flow impeller 6 into the conveying limit groove 251.

[0070] When loading the cross-flow impeller 6 to be detected, the feeding drive unit 271 can drive the feeding member 272 to rise. The cross-flow impeller 6 to be detected is placed on the feeding member 272. Then, the feeding member 272 and the cross-flow impeller 6 descend, and the cross-flow impeller 6 falls into the conveying limit groove 251 of the conveyor belt 25. The conveyor belt 25 drives the cross-flow impeller 6 to be conveyed backward to the directly lower side between the rotary clamping part 31 and the supporting part 41. The feeding drive unit 271 can adopt a driving mechanism such as a cylinder.

[0071] The above are only the preferred embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A visual inspection device for cross-flow fan blades, characterized in that It comprises a frame (1), on which a conveying device (2), a rotating device and a visual detection device (5) are provided; The conveying device (2) is used to convey the crossflow fan blades (6); The rotating device comprises a clamping rotating assembly (3) and a supporting assembly (4); the conveying device (2) is capable of conveying the crossflow blade (6) between the clamping rotating assembly (3) and the supporting assembly (4); the clamping rotating assembly (3) is provided with a rotating clamping portion (31); the supporting assembly (4) is provided with a supporting portion (41); the rotating clamping portion (31) is capable of clamping one end of the crossflow blade (6) and driving the crossflow blade (6) to rotate; and the supporting portion (41) is capable of supporting the other end of the crossflow blade (6); The visual inspection device (5) comprises at least one inspection camera (51), wherein the inspection camera (51) is arranged corresponding to the spatial position between the clamping rotating component (3) and the supporting component (4), and the inspection camera (51) is used to capture an image of a crossflow fan blade (6) placed between the rotating clamping part (31) and the supporting part (41).

2. The visual detection device according to claim 1, characterized in that, The clamping rotation assembly (3) comprises a first base (32), the first base (32) is fixedly connected to the frame (1), the first base (32) is provided with an expansion shaft mechanism, the expansion shaft mechanism is provided with an insertion portion (331) capable of radial expansion or contraction, the insertion portion (331) faces the supporting assembly (4), the insertion portion (331) can be inserted into the shaft hole at one end of the crossflow fan blade (6) and radially expand to clamp the crossflow fan blade (6), the rotating clamping portion (31) comprises the insertion portion (331), and the first base (32) is also provided with a rotation driving unit (34), the rotation driving unit (34) is transmission-connected to the insertion portion (331) and can drive the insertion portion (331) to rotate; The first base (32) is also provided with an ejection mechanism (35), the ejection mechanism (35) comprising an ejection drive unit (351) and an ejection member (352), the ejection member (352) being arranged on the side of the insertion portion (331) and away from the supporting portion (41), the ejection drive unit (351) being fixed on the first base (32), the ejection drive unit (351) being transmission-connected with the ejection member (352), and the ejection drive unit (351) being capable of driving the ejection member (352) to approach or move away from the supporting portion (41); The supporting component (4) includes a second base (42) and a third base (43). The second base (42) is connected to the frame (1). The third base (43) is slidably connected to the second base (42). A first moving drive unit (44) is provided on the second base (42). The first moving drive unit (44) is in transmission connection with the third base (43). The first moving drive unit (44) can drive the third base (43) to approach or move away from the first base (32). The supporting portion (41) is provided on the third base (43). The supporting portion (41) is used for supporting the rotating shaft at the other end of the cross-flow fan blade (6). A pushing mechanism (45) is further provided on the third base (43). The pushing mechanism (45) includes a pushing drive unit (451) and a pushing member (452). The pushing member (452) is provided beside the supporting portion (41) and on the side away from the inserting portion (331). The pushing drive unit (451) is fixed on the third base (43). The pushing drive unit (451) is in transmission connection with the pushing member (452). The pushing drive unit (451) can drive the pushing member (452) to approach or move away from the inserting portion (331).

3. The visual inspection device according to claim 2, wherein, The shaft expanding mechanism includes a plug shaft (332), an expanding block (333) and a telescopic shaft (334). The plug shaft (332) is rotatably connected to the first base (32). The telescopic shaft (334) is provided inside the plug shaft (332) and is arranged parallel to the plug shaft (332). The telescopic shaft (334) is axially slidably connected to the plug shaft (332). A radially arranged slot is provided on the plug shaft (332). The expanding block (333) is slidably connected in the slot. The side of the plug shaft (332) close to the supporting portion (41) is the inserting portion (331). The expanding block (333) is provided on the inserting portion (331). A shaft expanding drive unit (335) is further provided on the first base (32). The shaft expanding drive unit (335) is in transmission connection with the telescopic shaft (334). The shaft expanding drive unit (335) can drive the telescopic shaft (334) to move axially. A first inclined surface (3331) is provided on the expanding block (333). A second inclined surface (3341) which is matched with the first inclined surface (3331) is provided on the telescopic shaft (334). The telescopic shaft (334) and the expanding block (333) are cooperated through the first inclined surface (3331) and the second inclined surface (3341), so that the axial movement of the telescopic shaft (334) can drive the expanding block (333) to move radially along the plug shaft (332) to contract or protrude from the plug shaft (332).

4. The visual inspection device according to claim 2, characterized in that, The third base (43) is provided with a first roller (411) and a second roller (412). Taking the relative direction of the clamping and rotating assembly (3) and the supporting assembly (4) as the left-right direction, the axes of both the first roller (411) and the second roller (412) are along the left-right direction. The first roller (411) and the second roller (412) are arranged front and back, and the concave position on the upper side between the first roller (411) and the second roller (412) is the supporting part (41).

5. The visual inspection device according to claim 2, characterized in that, An adjusting mechanism is provided between the second base (42) and the frame (1). The adjusting mechanism includes an adjusting guide rail (46) and a locking structure. The adjusting guide rail (46) is fixedly connected to the frame (1). The adjusting guide rail (46) extends along the relative direction of the clamping and rotating assembly (3) and the supporting assembly (4). The second base (42) is slidably connected to the adjusting guide rail (46). The locking structure is connected to the second base (42), and the locking structure can lock the position of the second base (42) on the adjusting guide rail (46).

6. The visual inspection device according to claim 1, characterized in that, The vision detection device (5) further includes a second moving drive unit (52). The second moving drive unit (52) is connected to the frame (1). The detection camera (51) is arranged above the rotating device. The detection camera (51) is arranged on the moving end of the second moving drive unit (52). The second moving drive unit (52) can drive the detection camera (51) to move along the relative direction of the clamping and rotating assembly (3) and the supporting assembly (4).

7. The visual inspection device according to claim 6, wherein The vision detection device (5) further includes an upper light source (53) and a lower light source (54). The upper light source (53) is relatively fixed to the frame (1). The upper light source (53) is arranged above the rotating device, and the light emitting direction of the upper light source (53) is downward. The lower light source (54) is arranged on the moving end of the second moving drive unit (52). The lower light source (54) is arranged beside the space between the rotating clamping part (31) and the supporting part (41), and the light emitting direction of the lower light source (54) is towards the space between the rotating clamping part (31) and the supporting part (41).

8. The visual detection device according to claim 7, characterized in that, The vision detection device (5) further includes a light source lifting drive unit (55). The light source lifting drive unit (55) is arranged on the moving end of the second moving drive unit (52). The lower light source (54) is arranged on the moving end of the light source lifting drive unit (55). The light source lifting drive unit (55) can drive the lower light source (54) to move up and down.

9. The visual inspection device according to claim 1, characterized in that, The conveying device (2) includes a conveying base (21), a conveying motor (22), a driving pulley (23) and a driven pulley (24). The conveying base (21) is connected to the frame (1). The conveying motor (22) is fixedly connected to the conveying base (21). The driving pulley (23) and the driven pulley (24) are rotatably connected to the conveying base (21). Taking the relative direction of the clamping and rotating assembly (3) and the supporting assembly (4) as the left-right direction, the driving pulley (23) and the driven pulley (24) are arranged in the front-back direction. A conveyor belt (25) is wound around the driving pulley (23) and the driven pulley (24). The conveying motor (22) is in transmission connection with the driving pulley (23). The conveyor belt (25) is arranged on the lower side between the rotating clamping part (31) and the supporting part (41). A plurality of conveying limiting grooves (251) are arranged at intervals on the outer surface of the conveyor belt (25). The conveying limiting grooves (251) are used for placing the cross-flow air blades (6) and restricting the front-back position of the cross-flow air blades (6). The conveying device (2) further includes a lifting drive unit (261) and a lifting member (262). The lifting member (262) is arranged side by side with the conveyor belt (25). The lifting member (262) is arranged directly below the rotating clamping part (31) and the supporting part (41). The lifting drive unit (261) is in transmission connection with the lifting member (262). The lifting drive unit (261) can drive the lifting member (262) to move downward to a position lower than the upper side of the conveyor belt (25) or drive the lifting member (262) to move upward to lift the cross-flow air blades (6) in the conveying limiting grooves (251) to between the rotating clamping part (31) and the supporting part (41).

10. The visual inspection device according to claim 9, wherein, The conveying device (2) further includes a discharging drive unit (271) and a discharging member (272). The discharging member (272) is arranged side by side with the conveyor belt (25). The discharging member (272) is arranged in front of or behind the lifting member (262). The discharging drive unit (271) is in transmission connection with the discharging member (272). The discharging drive unit (271) can drive the discharging member (272) to move upward to a position higher than the upper side of the conveyor belt (25) or move downward to a position lower than the lower side of the conveyor belt (25) and put down the cross-flow air blades (6) into the conveying limiting grooves (251).

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