Centrifugal fan assembly line with steering material detection platform

Abstract

The invention relates to the technical field of centrifugal fan machining, in particular to a centrifugal fan assembly line with a steering material detection platform, and the centrifugal fan assembly line with the steering material detection platform is configured to be capable of assembling a centrifugal fan. The centrifugal fan assembly line with the steering material detection platform comprises a rack, the material detection platform, a grabbing device, a first conveying device and a second conveying device, and a feeding station and a temporary storage station are arranged at the two ends of the rack correspondingly. An assembling station, a shaft penetrating station, a bearing assembling station, a checking station and a discharging station are sequentially arranged between the feeding station and the temporary storage station in the conveying direction, and the material checking platform is arranged at the checking station, is next to the rack and is configured to be capable of temporarily storing defective products in the centrifugal fan. The centrifugal fan assembly line with the steering material detection platform is provided with a fixed machining station, and the mode that the centrifugal fan and parts of the centrifugal fan are automatically conveyed is adopted, so that the assembly efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal fan processing, in particular to a centrifugal fan assembly line with a turning material inspection platform. Background Art

[0002] As an important equipment that operates with the help of centrifugal force, the working mechanism of centrifugal fan is to use an electric motor to drive the impeller to rotate at high speed. During the rotation of the impeller, the gas is thrown from the center of the impeller to the surroundings. At the same time, a negative pressure state is formed in the central area of ​​the impeller inside the fan. Based on this negative pressure, the outside air can be continuously sucked into the fan and then discharged efficiently. With this working principle, centrifugal fans have been widely used in many fields such as industry, agriculture and construction.

[0003] Centrifugal fans have a series of significant advantages: in terms of performance, they exhibit the characteristics of large air volume, high pressure and high efficiency, and can fully meet various needs for gas transportation in different scenarios; from the installation perspective, the installation process is relatively simple, which greatly reduces the difficulty and cost of equipment deployment; these characteristics make centrifugal fans suitable for ventilation to ensure the freshness and circulation of indoor air; cooling and dust removal to create a good working atmosphere in industrial production environments; smoke exhaust and odor removal to effectively treat exhaust odor and other uses.

[0004] However, the existing centrifugal fans have certain limitations in the assembly process: at present, the assembly work of centrifugal fans is mainly carried out on a specific platform, and the whole process requires workers to move frequently to perform various installation operations. This operation mode not only leads to low assembly efficiency, but also requires workers to exert greater physical energy during the installation process; more importantly, after the centrifugal fan is installed, a series of subsequent links such as product movement, stacking and packaging also rely entirely on manual operation, which not only further increases the labor cost investment, but also in the process of manual handling, due to the uncontrollability of human factors, there is also a risk of product damage, which in turn has an adverse effect on product quality and product cost. Summary of the invention

[0005] Based on this, it is necessary to provide a centrifugal fan assembly line with a turning material inspection platform to address the time-consuming and labor-intensive problems existing in the current centrifugal fan assembly process.

[0006] The above purpose is achieved through the following technical solutions: A centrifugal fan assembly line with a steering material inspection platform, wherein the centrifugal fan assembly line with a steering material inspection platform is configured to assemble a centrifugal fan, wherein the centrifugal fan comprises an impeller, a casing, a rotating shaft and a bearing; the centrifugal fan assembly line with a steering material inspection platform comprises: A frame, the frame being of a U-shaped structure, with a loading station and a temporary storage station respectively arranged at both ends of the frame. Between the loading station and the temporary storage station, there are successively arranged an assembly station, a shaft-passing station, a bearing assembly station, an inspection station, and an off-line station along the conveying direction. The assembly station is configured to assemble the impeller and the casing; the shaft-passing station is configured to assemble the rotating shaft on the impeller and the casing; the bearing assembly station is configured to assemble the bearing on the rotating shaft and the casing; the inspection station is configured to inspect the centrifugal ventilator; An inspection material platform, arranged at the inspection station and adjacent to the frame, and configured to be able to temporarily store defective products in the centrifugal ventilator; A grasping device, arranged between the temporary storage station and the off-line station, and configured to be able to grasp the centrifugal ventilator from the off-line station to the temporary storage station; A first conveying device, arranged between the loading station and the assembly station, and configured to be able to convey the impeller from the loading station to the assembly station; A second conveying device, configured to be able to convey the casing from the loading station to the assembly station, and also configured to drive the centrifugal ventilator to be conveyed between the assembly station, the shaft-passing station, the bearing assembly station, the inspection station, and the off-line station.

[0007] Further, the second conveying device includes a conveyor belt, a pallet, and a locking mechanism. The conveyor belt is arranged on the frame and forms a closed conveying loop on the frame; the pallet is arranged on the conveyor belt and is configured to be able to convey the casing and the centrifugal ventilator; the locking mechanism is configured to be able to lock the pallet at a preset station when the conveyor belt is running normally.

[0008] Further, the locking mechanism further includes a friction block and two ejector rods. The friction block is arranged on the pallet and can form a friction fit with the conveyor belt. The friction block is rotatably connected to the pallet through the two ejector rods. The two ejector rods are arranged at intervals along the width direction of the conveyor belt, and can elastically slide along the width direction of the conveyor belt and can form a one-way fit with the friction block. Two first rollers are rotatably arranged at the bottom of the pallet. The two first rollers are arranged at intervals along the width direction of the conveyor belt. A second roller is rotatably arranged at the bottom of the friction block. The second roller can form a rolling fit with the conveyor belt. Two guide rails are arranged at the preset working position on the frame. The two guide rails are arranged at intervals along the width direction of the conveyor belt. The guide rails extend along the length direction of the conveyor belt and are configured to form a guiding fit with the first rollers and can drive the first rollers away from the conveyor belt. A clamping portion is arranged on each guide rail and is configured to form a clamping fit with the first roller. The clamping portion and / or the first roller are made of an elastic material. A guiding portion is arranged on each guide rail. The guiding portion is located behind the clamping portion along the conveying direction of the conveyor belt and is configured to form a stop fit with the ejector rod to drive the ejector rod to move inwards.

[0009] Further, an elastic member is connected between each ejector rod and the friction block. Under the action of the elastic member, the ejector rod has a tendency to extend outwards.

[0010] Further, the elastic member is a compression spring.

[0011] Further, a first ratchet ring is fixedly sleeved on each ejector rod. Two second ratchet rings are fixedly inserted into the friction block. The second ratchet rings are configured to form a one-way fit with the first ratchet ring.

[0012] Further, the grasping device is a palletizing robot.

[0013] Further, the centrifugal fan assembly line with a turning and material inspection platform further includes a fence. The fence is arranged at the temporary storage station and is configured to isolate the centrifugal fan from the external environment.

[0014] Further, the fence is in a U-shaped structure and the opening faces the palletizing robot. The fence and the palletizing robot jointly enclose a temporary storage area.

[0015] Further, the first conveying device includes a horizontal annular track, which is arranged on the frame. A plurality of hooks are slidably arranged on the horizontal annular track. Each hook is provided with a lifting rope and a lifting rod. When in use, the lifting rod is arranged coaxially with the axis of the impeller. The middle of the lifting rope is hooked on the hook, and the two ends of the lifting rope are respectively clamped at the two ends of the lifting rod.

[0016] The beneficial effects of the present invention are as follows: During the use of the centrifugal ventilator assembly line with a steering inspection platform provided by the present invention, first, the impeller is conveyed from the feeding station to the assembly station through the first conveying device, and at the same time, the casing is conveyed from the feeding station to the assembly station through the second conveying device. Then, the workers at the assembly station assemble the impeller and the casing. Then, the assembled impeller and casing are conveyed from the assembly station to the shaft-passing station through the second conveying device. Then, the workers at the shaft-passing station assemble the rotating shaft on the impeller and the casing. Then, the assembled impeller, casing, and rotating shaft are conveyed from the shaft-passing station to the bearing assembly station through the second conveying device. Then, the workers at the bearing assembly station assemble the bearings on the rotating shaft and the casing to form a centrifugal ventilator. Then, the centrifugal ventilator is conveyed from the bearing assembly station to the inspection station through the second conveying device for inspection. Once defective products are found, they can be temporarily stored on the inspection platform in time to prevent defective products from flowing into subsequent processes, which not only guarantees the product quality but also avoids the waste of resources in ineffective processes. Then, the inspected centrifugal ventilator is conveyed from the inspection station to the offline station through the second conveying device. Then, the centrifugal ventilator is grabbed from the offline station to the temporary storage station for temporary storage through the grabbing device. Therefore, by setting fixed processing stations for workers and adopting the method of automatically conveying the centrifugal ventilator and its components, the operation burden of workers can be reduced and the assembly efficiency can be improved.

[0017] Further, by setting the conveyor belt, the pallet, and the locking mechanism, during the use process, the pallet can be locked at the preset station under the normal operation of the conveyor belt through the locking mechanism, so that it will neither affect the normal operation of the second conveying device nor be convenient for processing the casing or the centrifugal ventilator on the pallet at the preset station. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the centrifugal ventilator assembly line with a steering inspection platform provided by an embodiment of the present invention; Figure 2 is Figure 1 a partial enlarged structural schematic diagram at A in Figure 3 It is a three-dimensional structural schematic diagram of the second conveying device of the centrifugal ventilator assembly line with a steering inspection platform provided by an embodiment of the present invention; Figure 4 Partial structural schematic of the second conveying device of the centrifugal ventilation unit assembly line with a steering inspection platform provided by an embodiment of the present invention Figure 1 ; Figure 5 Partial structural schematic of the second conveying device of the centrifugal ventilation unit assembly line with a steering inspection platform provided by an embodiment of the present invention Figure 2 ; Figure 6 is Figure 5 Partial enlarged structural schematic at position B in Figure 7 Partial sectional structural schematic of the second conveying device of the centrifugal ventilation unit assembly line with a steering inspection platform provided by an embodiment of the present invention Figure 8 is Figure 7 Partial enlarged structural schematic at position C in Figure 9 is Figure 7 Partial enlarged structural schematic at position D in Figure 10 Sectional structural schematic of the second conveying device of the centrifugal ventilation unit assembly line with a steering inspection platform provided by an embodiment of the present invention Figure 11 Partial top - view structural schematic of the second conveying device of the centrifugal ventilation unit assembly line with a steering inspection platform provided by an embodiment of the present invention Figure 12 Assembly structural schematic of part of the second conveying device of the centrifugal ventilation unit assembly line with a steering inspection platform provided by an embodiment of the present invention Figure 13 is Figure 12 Exploded view of the parts shown in Figure 14 is Figure 13 Partial enlarged structural schematic at position E in

[0019] Wherein: 1. Frame; 101. Loading station; 102. Assembly station; 103. Shaft - passing station; 104. Bearing assembly station; 105. Inspection station; 106. Unloading station; 107. Temporary storage station; 2. Palletizing robot; 3. Inspection platform; 4. First conveying device; 401. Horizontal circular track; 402. Hook; 403. Suspension rope; 404. Suspension rod; 501, conveyor belt; 502, pallet; 5021, positioning block; 5022, limiting ring; 5031, friction block; 50311, first chute; 5032, ejector rod; 5033, first roller; 5034, second roller; 5035, guide rail; 5036, clamping part; 50361, arc piece; 5037, guiding part; 504, compression spring; 505, first ratchet ring; 506, second ratchet ring; 6, enclosure; 7, auxiliary balance crane; 8, power roller line. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The serial numbers assigned to the components in this article itself, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The terms "connection" and "coupling" mentioned in this article, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0023] Such as Figure 1As shown in the figure, the centrifugal fan assembly line with a steering inspection platform provided by an embodiment of the present invention is configured to be able to assemble a centrifugal fan, and the centrifugal fan includes an impeller, a casing, a rotating shaft, and bearings; the centrifugal fan assembly line with a steering inspection platform includes a frame 1, an inspection platform 3, a grasping device, a first conveying device 4, and a second conveying device. Among them, the frame 1 is a U-shaped structure, and a feeding station 101 and a temporary storage station 107 are respectively arranged at both ends of the frame 1. Along the conveying direction between the feeding station 101 and the temporary storage station 107, an assembly station 102, a shaft-passing station 103, a bearing assembly station 104, an inspection station 105, and an offline station 106 are sequentially arranged. The assembly station 102 is configured to assemble the impeller and the casing; the shaft-passing station 103 is configured to assemble the rotating shaft on the impeller and the casing; the bearing assembly station 104 is configured to assemble the bearings on the rotating shaft and the casing; the inspection station 105 is configured to inspect the centrifugal fan; the inspection platform 3 is arranged at the inspection station 105 and is adjacent to the frame 1, and is configured to be able to temporarily store defective products in the centrifugal fan; the grasping device is arranged between the temporary storage station 107 and the offline station 106, and is configured to be able to grasp the centrifugal fan from the offline station 106 to the temporary storage station 107; the first conveying device 4 is arranged between the feeding station 101 and the assembly station 102, and is configured to be able to convey the impeller from the feeding station 101 to the assembly station 102; the second conveying device is configured to be able to convey the casing from the feeding station 101 to the assembly station 102, and is also configured to drive the centrifugal fan to be conveyed between the assembly station 102, the shaft-passing station 103, the bearing assembly station 104, the inspection station 105, and the offline station 106.

[0024] Specifically in this embodiment, the frame 1 is sequentially provided with a first part, a second part, and a third part along the conveying direction, wherein the first part and the third part are arranged in parallel, and the second part is perpendicular to both the first part and the third part at the same time. The feeding station 101 is arranged at the rear side of the first part, and the impeller and the casing are stored at the feeding station 101 for convenient feeding. The assembly station 102, the shaft-passing station 103, and the bearing assembly station 104 are all arranged on the first part. The inspection station 105 is arranged on the second part. The inspection platform 3 is closely arranged with the second part and is located outside the second part. The offline station 106 is arranged on the third part. The temporary storage station 107 is arranged at the rear side of the third part.

[0025] During the use process, first, the impeller is conveyed from the feeding station 101 to the assembly station 102 through the first conveying device 4, and at the same time, the casing is conveyed from the feeding station 101 to the assembly station 102 through the second conveying device; after the impeller and the casing reach the assembly station 102, the operators at this station strictly carry out the assembly operation of the impeller and the casing in an orderly manner according to the established assembly process standards.

[0026] After the preliminary assembly is completed, the second conveying device transports the assembled impeller and casing smoothly from the assembly station 102 to the shaft-passing station 103 along the established conveying path. After the assembled impeller and casing reach the shaft-passing station 103, the operator at this station assembles the rotating shaft onto the impeller and casing.

[0027] After the shaft-passing process is completed, the second conveying device transports the impeller and casing assembly with the rotating shaft installed to the bearing assembly station 104. At the bearing assembly station 104, the operator accurately installs the bearings on the rotating shaft and the casing according to the precise assembly requirements, completing the main assembly of the centrifugal ventilator.

[0028] The assembled centrifugal ventilator is then transported by the second conveying device to the inspection station 105. At the inspection station 105, the installation quality of the centrifugal ventilator is inspected manually. Once the operator identifies a defective condition of the product, the inspection platform 3 adjacent to the inspection station 105 immediately activates the temporary storage mechanism and quickly stores the defective products properly. This measure can not only effectively prevent defective products from flowing into subsequent processes but also avoid wasting resources such as manpower, material resources, and time caused by ineffective subsequent processing of defective products.

[0029] The centrifugal ventilator determined to be qualified after inspection is continuously transported by the second conveying device to the offline station 106. After reaching the offline station 106, the grasping device quickly and accurately grasps the centrifugal ventilator according to the preset program and precise positioning system and smoothly transfers it from the offline station 106 to the temporary storage station 107 for temporary storage.

[0030] By setting that each operator is assigned to a fixed processing station, it avoids the physical consumption and time waste caused by the frequent movement of operators between different stations in the traditional assembly mode. At the same time, by adopting the method of automatically transporting the centrifugal ventilator and its components, it can not only avoid the uncertainty and errors in the manual handling process but also make the connection between each station closer and more efficient, thus helping to significantly reduce the workload of the operators, enabling them to concentrate more energy on key assembly processes, improving the assembly quality, and also improving the assembly efficiency.

[0031] Furthermore, as Figures 2 to 14 shown, the second conveying device is set to include a conveyor belt 501, a pallet 502, and a locking mechanism. The conveyor belt 501 is arranged on the frame 1 and forms a closed conveying loop on the frame 1. The pallet 502 is arranged on the conveyor belt 501 and is configured to be able to convey the casing and the centrifugal ventilator. The locking mechanism is configured to lock the pallet 502 at the preset station when the conveyor belt 501 is running normally.

[0032] During actual use, when the conveyor belt 501 is running normally at a preset speed and in a preset direction, the locking mechanism can accurately perform its locking function according to the requirements of the production process. That is, once the centrifugal ventilator is conveyed to the preset working position by the pallet 502, the locking mechanism acts quickly to firmly lock the pallet 502 in this position.

[0033] This locking process has multiple significant advantages. First, from the perspective of its impact on the operation of the second conveying device, the operation of the locking mechanism enables the positioning and locking of the pallet 502 without interfering with the normal operation of the conveyor belt 501. That is to say, the conveyor belt 501 can still maintain its continuous and stable cyclic operation state, while the pallet 502 can be accurately fixed at the preset working position. The two are independent and cooperate with each other, greatly ensuring the efficient operation of the entire conveying system.

[0034] Secondly, for the production and processing link, this method provides great convenience for processing the casing or centrifugal ventilator on the pallet 502 at the preset working position. That is, after the pallet 502 is locked at the preset working position, workers can perform various delicate processing tasks on a stable and stationary workbench. For example, assembling the casing and impeller at the assembly station 102, or installing and debugging different components of the centrifugal ventilator at the shaft-passing station 103, bearing assembly station 104, etc. This stability greatly improves the accuracy and reliability of the processing operation, effectively avoiding processing errors that may be caused by the shaking or displacement of the pallet 502, thus significantly improving the assembly quality of the product.

[0035] In some embodiments, the locking mechanism is further configured to include a friction block 5031 and two ejector rods 5032. The friction block 5031 is disposed on the pallet 502 and is capable of forming a friction fit with the conveyor belt 501. The friction block 5031 is rotatably connected to the pallet 502 through the two ejector rods 5032. The two ejector rods 5032 are arranged at intervals along the width direction of the conveyor belt 501, and are each capable of elastically sliding along the width direction of the conveyor belt 501 and are each capable of forming a one-way fit with the friction block 5031. Two first rollers 5033 are rotatably disposed at the bottom of the pallet 502, and the two first rollers 5033 are arranged at intervals along the width direction of the conveyor belt 501. A second roller 5034 is rotatably disposed at the bottom of the friction block 5031, and the second roller 5034 is capable of forming a rolling fit with the conveyor belt 501. Two guide rails 5035 are disposed on the frame 1 at a preset station, and the two guide rails 5035 are arranged at intervals along the width direction of the conveyor belt 501. The guide rails 5035 extend along the length direction of the conveyor belt 501 and are configured to be capable of forming a guiding fit with the first rollers 5033 and driving the first rollers 5033 away from the conveyor belt 501. A clamping portion 5036 is disposed on each of the guide rails 5035, and the clamping portion 5036 is configured to be capable of forming a clamping fit with the first rollers 5033. The clamping portion 5036 and / or the first rollers 5033 are made of an elastic material. A guiding portion 5037 is disposed on each of the guide rails 5035, and the guiding portion 5037 is located behind the clamping portion 5036 along the conveying direction of the conveyor belt 501 and is configured to be capable of forming a stopping fit with the ejector rod 5032 to drive the ejector rod 5032 to move inward.

[0036] Specifically in this embodiment, in order to facilitate the installation of the friction block 5031 and the ejector rod 5032, two positioning blocks 5021 are disposed at the rear side wall of the pallet 502, and the two positioning blocks 5021 are arranged at intervals along the width direction of the conveyor belt 501. The friction block 5031 is clamped between the two positioning blocks 5021 during installation. First sliding grooves 50311 are formed on the left and right side walls of the friction block 5031. When installed, the ejector rod 5032 extends along the width direction of the conveyor belt 501, penetrates through the positioning block 5021, and is slidably inserted into the first sliding groove 50311.

[0037] The two first rollers 5033 are disposed at the front bottom of the pallet 502 and are located on the left and right sides of the conveyor belt 501. The axis of the first roller 5033 extends along the width direction of the conveyor belt 501. The second roller 5034 is disposed at the bottom of the friction block 5031, and the axis of the second roller 5034 extends along the width direction of the conveyor belt 501. The guide rail 5035 has an inclined section and a horizontal section fixedly connected thereto, wherein the inclined section is located behind the horizontal section, and the inclined section is configured to be capable of guiding the first roller 5033 upward, and the horizontal section is configured to be capable of guiding the first roller 5033 horizontally.

[0038] The clamping part 5036 is set to be composed of two arc pieces 50361. The two arc pieces 50361 are oppositely arranged on the horizontal section of the guide rail 5035 and are spaced along the belt length direction of the conveyor belt 501. The two arc pieces 50361 together form a semi-circular structure to form an area for clamping with the first roller 5033. The guiding part 5037 is an arc-shaped block structure. When installed, the guiding part 5037 is arranged inside the guide rail 5035 with the convex surface facing inwards, ensuring that when abutting against the ejector rod 5032, it can drive the ejector rod 5032 to move inwards, so that the ejector rod 5032 is disengaged from the one-way fit with the friction block 5031.

[0039] Optionally, the elastic material can be set as rubber.

[0040] Furthermore, to improve the stability when the ejector rod 5032 and the friction block 5031 form a one-way fit, a limiting ring 5022 is vertically and fixedly arranged on the outer side wall of each positioning block 5021. When installed, the limiting ring 5022 is sleeved on the ejector rod 5032 and forms a sliding key fit with the ejector rod 5032 to ensure that the ejector rod 5032 can only move axially.

[0041] Optionally, to facilitate the realization of the sliding key fit between the limiting ring 5022 and the ejector rod 5032, it can be set that a second chute is arranged on the inner peripheral wall of the limiting ring 5022, and the second chute extends along the direction parallel to the axis of the limiting ring 5022. A sliding protrusion is arranged on the circumferential side wall of the ejector rod 5032, and the sliding protrusion is slidably inserted into the second chute when installed; it can also be set that a sliding protrusion is arranged on the inner peripheral wall of the limiting ring 5022, and a second chute is arranged on the circumferential side wall of the ejector rod 5032. The principle is the same as above and will not be elaborated here.

[0042] Optionally, to ensure that the ejector rod 5032 can only move axially, it can be set that both the first chute 50311 and the ejector rod 5032 are square structures.

[0043] Furthermore, to facilitate the realization that the ejector rod 5032 can elastically slide along the width direction of the conveyor belt 501, an elastic member is connected between each ejector rod 5032 and the friction block 5031. Under the action of the elastic member, the ejector rod 5032 has a tendency to extend outwards.

[0044] Specifically, the elastic member is a compression spring 504, and when installed, it is inserted into the first chute 50311. Under the action of the first compression spring 504, the ejector rod 5032 has a tendency to extend outwards.

[0045] Furthermore, to facilitate the realization of the one-way fit between the ejector rod 5032 and the friction block 5031, a first ratchet ring 505 is fixedly sleeved on each ejector rod 5032; two second ratchet rings 506 are fixedly inserted into the friction block 5031, and the second ratchet rings 506 are configured to be able to form a one-way fit with the first ratchet ring 505.

[0046] Specifically, the first ratchet ring 505 is sleeved on the inner end of the ejector rod 5032, and the ratchet tooth surface is arranged on the outer end face of the first ratchet ring 505; the second ratchet ring 506 is arranged at the outer end of the first chute 50311, and the ratchet tooth surface is arranged on the inner end face of the second ratchet ring 506. Under the action of the compression spring 504, the first ratchet ring 505 and the second ratchet ring 506 tend to press against each other, so that the ejector rod 5032 and the friction block 5031 can form a one-way fit.

[0047] Initially, as Figure 3 shown, the friction block 5031 and the conveyor belt 501 form a friction fit.

[0048] During use, under the friction fit between the friction block 5031 and the conveyor belt 501, the support plate 502 drives the machine housing or the centrifugal ventilator to move together with the conveyor belt 501; when the support plate 502 moves to contact with the first roller 5033 and the guide rail 5035, with the conveyance of the conveyor belt 501, as Figure 4 and Figure 5 shown, the first roller 5033 moves along the guide rail 5035, synchronously driving the support plate 502 to form a posture with a higher front side and a lower rear side. The support plate 502 rotates relative to the friction block 5031 at the same time, so that the friction block 5031 still forms a friction fit with the conveyor belt 501, ensuring that the support plate 502 can continue to drive the machine housing or the centrifugal ventilator to move together with the conveyor belt 501.

[0049] When the support plate 502 moves to the first roller 5033 and the clamping portion 5036 are clamped, as Figure 7 、 Figure 8 and Figure 9 shown, due to the front end of the support plate 502 moving downward, under the one-way fit between the first ratchet ring 505 and the second ratchet ring 506, the support plate 502 synchronously drives the friction block 5031 to tilt up, so that the friction block 5031 and the conveyor belt 501 are disengaged from the friction fit, and the first roller 5033 and the conveyor belt 501 form a rolling fit, so that the support plate 502 together with the machine housing or the centrifugal ventilator thereon can stay at the preset working station.

[0050] When the machining of the machine housing or the centrifugal ventilator is completed at the preset working station, the worker presses down the support plate 502 or the machine housing or the centrifugal ventilator. Since the clamping portion 5036 and / or the first roller 5033 are made of elastic materials, the first roller 5033 can be disengaged from the clamping portion 5036, so that it can fall back onto the conveyor belt 501 again and synchronously drive the support plate 502 to move together with the conveyor belt 501. At this time, the friction block 5031 is still disengaged from the friction fit with the conveyor belt 501.

[0051] When the pallet 502 moves to a position where the ejector rod 5032 and the guiding part 5037 form a stop fit, as the conveyor belt 501 moves, under the pushing of the guiding part 5037, the ejector rod 5032 moves inward. While compressing the compression spring 504, the first ratchet ring 505 and the second ratchet ring 506 are disengaged synchronously. At this time, the friction block 5031 rotates relative to the pallet 502 under its own weight and falls back onto the conveyor belt 501, so as to stably drive the pallet 502 to move together with the conveyor belt 501.

[0052] Implementing the positioning of the pallet 502 by setting the above locking mechanism has significant advantages. Analyzed from the aspect of cost control, compared with achieving the same purpose by using a complex electric control structure, it has obvious cost advantages. A complex electric control structure often requires high-precision sensors, complex control systems and a large number of electrical components. Not only a large amount of capital is needed for equipment procurement, but also professional technicians and high maintenance costs are required during subsequent installation, commissioning, maintenance and repair processes. However, the locking mechanism in this embodiment has a relatively simple structure and is mainly composed of mechanical components. While ensuring the realization of the precise positioning function, it greatly reduces the equipment construction cost. At the same time, due to the simplicity of its structure, the subsequent maintenance and repair work is more convenient, and the maintenance cost is significantly reduced, achieving the maximization of economic benefits for the enterprise while ensuring production efficiency and product quality.

[0053] In addition, when the pallet 502 is tilted as a whole due to the previous process, one of the first rollers 5033 will first be approximately engaged with the engaging part 5036. At this time, under the conveyance of the conveyor belt 501, the whole pallet 502 can rotate around the first roller 5033, so that the other first roller 5033 rotates to correspond to and engage with the engaging part 5036, thus realizing automatic deviation correction.

[0054] In some other embodiments, the grasping device is the palletizing robot 2.

[0055] Specifically in this embodiment, the palletizing robot 2 can be equipped with an advanced vision recognition system and high-precision sensors to quickly and accurately identify the centrifugal ventilator located at the offline station 106.

[0056] After the centrifugal fan is transported to the offline station 106 by the second conveying device and positioned, the vision system of the palletizing robot 2 quickly captures its position and attitude information, and the sensor monitors the surrounding environment in real time to ensure the safety of the grasping process. Based on these accurate data feedbacks, the palletizing robot 2 extends the grasping component along the preset optimal path through its flexible and stable robotic arm, and accurately grasps the centrifugal fan. The grasping force can be finely adjusted, which can not only ensure firm grasping of the product, but also cause no damage to the product surface, thus guaranteeing the appearance integrity and internal structure stability of the centrifugal fan.

[0057] After the grasping is completed, the palletizing robot 2 transfers the centrifugal fan to the temporary storage station 107 smoothly and quickly according to the pre-programmed running trajectory. During the transfer process, the palletizing robot 2 can automatically perform path planning and dynamic obstacle avoidance according to the layout of surrounding equipment and the logistics channel conditions, avoiding collisions with other equipment or objects, which greatly improves the safety and smoothness of the transfer process. After arriving at the temporary storage station 107, the palletizing robot 2 again, relying on its precise positioning ability, places the centrifugal fan neatly and orderly at the designated position according to specific arrangement and stacking requirements, making full preparations for subsequent product storage and transportation.

[0058] Compared with the traditional manual grasping and transfer method, the application of the palletizing robot 2 greatly improves the work efficiency: it can continuously operate at high speed, complete the grasping and transfer tasks of a large number of centrifugal fans in a short time, significantly shorten the time cycle from product offline to temporary storage, and speed up the operation speed of the entire production process; at the same time, the precise operation of the palletizing robot 2 effectively avoids the damage risks such as product dropping and collision caused by manual operation errors, greatly guarantees the product quality, and reduces the economic losses caused by product damage.

[0059] In some other embodiments, considering that the assembled centrifugal fan is vulnerable to many adverse external factors during temporary storage, in order to effectively reduce such impacts and ensure the stability of product quality, the centrifugal fan assembly line with a turning inspection platform further includes a fence 6. The fence 6 is arranged at the temporary storage station 107 and configured to isolate the centrifugal fan from the external environment.

[0060] Furthermore, the fence 6 can be set as a U-shaped structure with the opening facing the palletizing robot 2. The fence 6 and the palletizing robot 2 jointly enclose a temporary storage area, which can reduce the potential risk of damage to the product caused by accidental external collisions.

[0061] In other embodiments, the first conveying device 4 is configured to include a horizontal annular track 401, which is arranged on the frame 1, and a plurality of hooks 402 are slidably arranged on the horizontal annular track 401, each hook 402 is provided with a lifting rope 403 and a lifting rod 404, and the lifting rod 404 is arranged to coincide with the axis of the impeller when in use, the middle part of the lifting rope 403 is hooked on the lifting hook 402, and the two ends of the lifting rope 403 are respectively clamped on the two ends of the lifting rod 404.

[0062] Specifically in this embodiment, the horizontal annular track 401 is an L-shaped structure, and the longer part of the horizontal annular track 401 is parallel to and closely arranged with the first part of the frame 1, so that the impeller can be misaligned with the casing to avoid interference when the impeller is transported; the shorter part of the horizontal annular track 401 is perpendicular to and partially overlaps with the first part of the frame 1, so that the impeller can overlap with the casing in the vertical direction when the impeller is transported, which facilitates the impeller to be placed into the casing from the top of the casing.

[0063] In other embodiments, the second conveying device is configured to include a roller conveying structure.

[0064] In other embodiments, in order to improve the assembly efficiency and operation safety of some centrifugal fan products with special specifications, an auxiliary balancing hanger 7 is provided at the shaft threading station 103, which is used when some larger products need to be turned over or auxiliary suspended.

[0065] In the actual production process, when faced with some large-sized centrifugal fan products, their weight and volume often bring many challenges to the assembly operation. For example, before the shaft threading process, it is sometimes necessary to turn the product over to ensure that the rotating shaft can be accurately assembled on the impeller and the casing. Relying on manpower to complete the turning of such large products is not only difficult, but also has great safety risks, which can easily cause damage to the product or injury to the operator.

[0066] At this time, the auxiliary balance crane 7 can easily realize the stable turning of large products through precise suspension and balance control, creating favorable conditions for the smooth implementation of the shaft threading process. In addition, during the entire shaft threading process, the auxiliary balance crane 7 can also assist in the suspension of the product, thereby effectively reducing the labor intensity of the workers and ensuring the stability of the product during the assembly process.

[0067] In other embodiments, in order to better adapt to the overall efficient operation process of the centrifugal fan assembly line and meet the requirements of automated production for precise material transfer, a powered roller line 8 is provided at the offline station 106, which can receive and automatically move the centrifugal fan to a position where the palletizing robot 2 can grasp it after the centrifugal fan is moved out of the verification station 105.

[0068] When the centrifugal fan undergoes the inspection at the inspection station 105 and is confirmed qualified and removed from the inspection station 105, the power roller conveyor line 8 receives these offline centrifugal fans and, driven by the power of its own rollers, automatically and smoothly moves the centrifugal fans to a position where the palletizing robot 2 can easily grab them according to a preset path and speed, so as to achieve seamless docking from the offline station 106 to the subsequent palletizing process, and further improve the continuity of product transportation in the production process.

[0069] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0070] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A centrifugal fan assembly line with a turning and material checking platform, characterized in that: The centrifugal fan assembly line with a turning and material checking platform is configured to assemble a centrifugal fan, wherein the centrifugal fan includes an impeller, a casing, a rotating shaft and a bearing; The centrifugal fan assembly line with a steering material inspection platform includes: The frame is a U-shaped structure, and a loading station and a temporary storage station are respectively arranged at both ends of the frame. An assembly station, an axis-threading station, a bearing assembly station, a verification station, and an offline station are sequentially arranged along the conveying direction between the loading station and the temporary storage station. The assembly station is configured to assemble the impeller and the casing; the axis-threading station is configured to assemble the rotating shaft on the impeller and the casing; the bearing assembly station is configured to assemble the bearing on the rotating shaft and the casing; the verification station is configured to verify the centrifugal fan; A material inspection platform is arranged at the inspection station and is close to the frame, and is configured to temporarily store defective products in the centrifugal fan; A grabbing device is disposed between the temporary storage station and the offline station and is configured to grab the centrifugal fan from the offline station to the temporary storage station; A first conveying device is disposed between the loading station and the assembling station and is configured to convey the impeller from the loading station to the assembling station; The second conveying device is configured to convey the casing from the loading station to the assembly station, and is also configured to drive the centrifugal fan to be conveyed between the assembly station, the shaft threading station, the bearing assembly station, the calibration station and the offline station.

2. The centrifugal fan assembly line with a turning material inspection platform according to claim 1 is characterized in that: The second conveying device includes a conveyor belt, a pallet and a locking mechanism. The conveyor belt is arranged on the frame and forms a closed conveying loop on the frame; the pallet is arranged on the conveyor belt and is configured to convey the casing and the centrifugal fan; the locking mechanism is configured to lock the pallet at a preset position when the conveyor belt is operating normally.

3. The centrifugal fan assembly line with a turning material inspection platform according to claim 2 is characterized in that: The locking mechanism also includes a friction block and two push rods, the friction block is arranged on the support plate and can form a friction fit with the conveyor belt, and is rotatably connected to the support plate through the two push rods, the two push rods are arranged at intervals along the bandwidth direction of the conveyor belt, and can elastically slide along the bandwidth direction of the conveyor belt, and can form a one-way fit with the friction block; the bottom of the support plate is rotatably provided with two first rollers, the two first rollers are arranged at intervals along the bandwidth direction of the conveyor belt; the bottom of the friction block is rotatably provided with a second roller, and the second roller can form a rolling fit with the conveyor belt; the frame is located at the preset working Two guide rails are arranged at the position, and the two guide rails are arranged at intervals along the belt width direction of the conveyor belt. The guide rails extend along the belt length direction of the conveyor belt and are configured to form a guiding cooperation with the first roller and drive the first roller to separate from the conveyor belt; each of the guide rails is provided with a clamping part, and the clamping part is configured to form a clamping cooperation with the first roller; the clamping part and / or the first roller are made of elastic material; each of the guide rails is provided with a guiding part, and the guiding part is located at the rear side of the clamping part along the conveying direction of the conveyor belt, and is configured to form a stop cooperation with the push rod to drive the push rod to move inward.

4. The centrifugal fan assembly line with a turning material inspection platform according to claim 3 is characterized in that: An elastic member is connected between each of the push rods and the friction block, and under the action of the elastic member, the push rod has a tendency to extend outwards.

5. The centrifugal fan assembly line with a turning material inspection platform according to claim 4 is characterized in that: The elastic member is a compression spring.

6. The centrifugal fan assembly line with a turning material inspection platform according to claim 3 is characterized in that: A first ratchet ring is fixedly sleeved on each of the push rods; two second ratchet rings are fixedly inserted in the friction block, and the second ratchet rings are configured to form a one-way fit with the first ratchet ring.

7. The centrifugal fan assembly line with a turning material inspection platform according to claim 1 is characterized in that: The grasping device is a palletizing robot.

8. The centrifugal fan assembly line with a turning and material checking platform according to claim 7 is characterized in that: The centrifugal fan assembly line with a turning material inspection platform also includes an enclosure, which is arranged at the temporary storage station and is configured to isolate the centrifugal fan from the external environment.

9. The centrifugal fan assembly line with a turning and material checking platform according to claim 8, characterized in that: The enclosure is a U-shaped structure with an opening toward the palletizing robot. The enclosure and the palletizing robot together surround a temporary storage area.

10. The centrifugal fan assembly line with a turning and material checking platform according to claim 1, characterized in that: The first conveying device includes a horizontal annular track, which is arranged on the frame. A plurality of hooks are slidably arranged on the horizontal annular track, each of the hooks is provided with a suspension rope and a suspension rod, and the suspension rod is arranged to coincide with the axis of the impeller when in use. The middle part of the suspension rope is hooked on the suspension hook, and the two ends of the suspension rope are respectively clamped on the two ends of the suspension rod.

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