Centrifugal fan casing machining apparatus

Abstract

The utility model belongs to the technical field of casing processing, specifically discloses a centrifugal fan casing processing equipment, including alignment cabinet, the casing that is placed in alignment cabinet interior is waited and processed still include alignment slot, alignment slot is set up in alignment cabinet interior, and the alignment slot one side and casing coincide and insert, and then realize the alignment action of casing part, guide component, guide component is fixed in alignment cabinet both sides, screw rod, screw rod is placed in guide component, screwing component, screwing component is fixed in alignment cabinet interior. The utility model places casing part in alignment cabinet, and utilizes alignment slot and guide component to keep part position accurate, and pre -screwed to screwing component drive screw rod, realizes casing positioning, and is convenient for subsequent welding processing.

Description

Technical Field

[0001] This utility model belongs to the field of casing processing technology, and specifically relates to a centrifugal fan casing processing equipment. Background Technology

[0002] The casing of a centrifugal fan is the core load-bearing and airflow guiding structure of the centrifugal fan. It is usually made of metal sheet or casting and has a volute or coil shape. It has inlet and outlet channels inside to guide air or gas to flow along a predetermined path. The casing is usually also equipped with flanges, support feet and sealing structures to ensure tight connection with the fan impeller, bearings and drive unit, ensuring efficient airflow delivery and pressure conversion. The casing material must have good mechanical strength and corrosion resistance, and the surface can be coated with anti-rust coating or powder coating to adapt to high temperature, high humidity or dusty conditions in different industrial environments. In use, the casing not only bears the centrifugal force generated by the impeller and the internal air pressure, but also needs to ensure the stability and safety of the whole machine operation, so as to achieve the efficient, durable and reliable working performance of the centrifugal fan.

[0003] Traditional centrifugal fan casings are mostly composed of two side plates and a cylindrical welded structure, which presents significant assembly difficulties during processing. These difficulties are mainly manifested in the following aspects: First, during the processing preparation stage, the two side plates need to be placed on both sides of the cylinder, and it is necessary to ensure that the side plates are strictly aligned with the circumference and central axis of the cylinder. However, due to the possibility of slight deformation or accumulated processing tolerances in the side plates themselves, the alignment work is complicated and time-consuming. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a centrifugal fan casing processing equipment.

[0005] To achieve the above objectives, this utility model provides a centrifugal fan housing processing equipment, including an alignment cabinet containing a housing to be processed, an alignment groove formed inside the alignment cabinet with one side of the groove fitting into the housing to align the housing components; a guide assembly fixed to both sides of the alignment cabinet; a screw placed within the guide assembly; and a tightening assembly fixed inside the alignment cabinet. In use, the housing components are placed in the alignment cabinet, which is tilted within the operating chamber to maintain alignment. Then, the tightening assembly drives the screw to screw into the housing processing component, achieving a pre-tightening positioning action, facilitating the removal of the positioned housing for subsequent welding.

[0006] In the above technical solution, the guide component further includes a first L-shaped track plate and a second L-shaped track plate, which are staggered and connected.

[0007] In the above technical solution, a feeding groove is further provided on the upper part of the second L-shaped track plate. The shape of the feeding groove matches the screw, which is used to prevent multiple screws from achieving automated feeding action by gravity. In the above technical solution, a discharge groove is further provided at the bend of the second L-shaped track plate to guide the ejection of the screw, and a guide groove is provided on one side of the second L-shaped track plate to match the screw after installation and removal. In the above technical solution, the twisting component further includes a slide block slidably installed inside the alignment cabinet, and a lead screw is fixedly connected to the output end of the motor fixed on the slide block. When the motor rotates forward and reverse, the lead screw screw connected to the alignment cabinet drives the slide block to perform a lateral movement. In the above technical solution, the first rotating wheel fixed on the lead screw and the second rotating wheel rotatably installed inside the alignment cabinet are belt driven. A square rod fixed inside the second rotating wheel is fixedly connected to a spring telescopic rod rotatably installed on the upper part of the slide block via a one-way bearing. The insertion rod fixed at the end of the spring telescopic rod is movably inserted into the slot of the screw. In use, the motor drives the slide block to move and drives the insertion rod to rotate to realize the screw-on action. Afterwards, the motor reverses to drive the slide block to reset, and the insertion rod does not rotate under the action of the one-way bearing.

[0008] Compared with the prior art, the present invention has the following advantages: When using the centrifugal fan housing processing equipment, the housing component to be processed is first placed inside the alignment cabinet. The alignment cabinet is provided with an alignment groove that matches the shape of the housing component. The initial position constraint of the housing component is achieved through plug-in connection, and its alignment accuracy in the horizontal and vertical directions is ensured. At the same time, the alignment cabinet is placed at an angle in the operating room, and the position of the housing component is further stabilized by gravity to prevent the component from shifting during processing. Subsequently, the guide component inside the equipment is fixed on both sides of the alignment cabinet to guide the screw to move in a predetermined direction. The screwing component drives the screw to screw into the housing component. The pre-tightening positioning action fixes the various components of the housing in the aligned state. Throughout the process, the housing components remain stable and symmetrical, ensuring that there is no need to frequently adjust their positions during subsequent welding, thereby improving assembly efficiency and welding quality, while reducing the labor intensity of operators and achieving high precision, high efficiency and safety in housing processing. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the guiding component structure proposed in this utility model; Figure 3 This is a schematic diagram of the first L-shaped track slab structure proposed in this utility model; Figure 4 The present utility model proposes Figure 3 Schematic diagram of the structure at point A in the middle; Figure 5 This is a schematic diagram of the screwing component structure proposed in this utility model.

[0010] In the diagram: 1. Alignment cabinet; 2. Guide assembly; 3. Tightening assembly; 4. Housing; 5. Screw; 201. First L-shaped track plate; 202. Second L-shaped track plate; 203. Feed chute; 204. Discharge chute; 205. Guide chute; 301. Slide; 302. Motor; 303. First rotating wheel; 304. Second rotating wheel; 305. Lead screw; 306. Spring telescopic rod; 307. Square rod; 308. Insert rod. Detailed Implementation To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0011] like Figures 1-5 The centrifugal fan housing 4 processing equipment shown includes an alignment cabinet 1, inside which the housing 4 to be processed is placed, and an alignment groove, which is opened inside the alignment cabinet 1 and one side of the alignment groove is fitted into the housing 4 to achieve the alignment action of the housing 4 components; a guide assembly 2, which is fixed on both sides of the alignment cabinet 1; a screw 5, which is placed in the guide assembly 2; and a tightening assembly 3, which is fixed inside the alignment cabinet 1. In use, the components of the housing 4 are placed in the alignment cabinet 1, and the alignment cabinet 1 is tilted in the operating room to maintain the alignment action of the components of the housing 4; then, the tightening assembly 3 drives the screw 5 to screw into the components of the housing 4 to achieve the pre-tightening and positioning action of the tightening assembly 3, so as to facilitate the removal of the positioned housing 4 for subsequent welding actions.

[0012] The centrifugal fan housing 4 processing equipment described above, when using this centrifugal fan housing 4 processing equipment, firstly, the housing 4 component to be processed is placed inside the alignment cabinet 1. The alignment cabinet 1 is provided with an alignment groove that matches the shape of the housing 4 component. The initial position constraint of the housing 4 component is achieved through plug-in cooperation, and its alignment accuracy in the horizontal and vertical directions is ensured. At the same time, the alignment cabinet 1 is placed at an angle in the operating room, and the position of the housing 4 component is further stabilized by gravity to prevent the component from shifting during the processing. Subsequently, the guide assembly 2 inside the equipment is fixed on both sides of the alignment cabinet 1 to guide the screw 5 to move in a predetermined direction. The screwing assembly 3 drives the screw 5 to be screwed into the housing 4 component. The pre-tightening positioning action fixes each component of the housing 4 in the alignment state. Throughout the process, the four components of the housing remain stable and symmetrical, ensuring that there is no need to frequently adjust their positions during subsequent welding, thereby improving assembly efficiency and welding quality, while reducing the labor intensity of operators and achieving high precision, high efficiency and safety in the machining of the four components.

[0013] In this embodiment, the guide assembly 2 includes a first L-shaped track plate 201 and a second L-shaped track plate 202. The first L-shaped track plate 201 and the second L-shaped track plate 202 are staggered and connected. Further, a feeding groove 203 is provided on the upper part of the second L-shaped track plate 202. The shape of the feeding groove 203 matches the screw 5 and is used to prevent multiple screws 5 from achieving automated feeding action by gravity. A discharge groove 204 is provided at the bend of the second L-shaped track plate 202 to guide the screw 5 to be ejected. A guide groove 205 is provided on one side of the second L-shaped track plate 202 to match the screw 5 after installation and move out. The guide assembly 2, through the staggered arrangement of the first L-shaped track plate 201 and the second L-shaped track plate 202, achieves precise transmission of the screw 5 from loading to positioning. First, the screw 5 is placed in the unloading groove 203 on the upper part of the second L-shaped track plate 202. The shape of the unloading groove 203 matches the outer diameter of the screw 5, ensuring that the screw 5 falls smoothly under gravity and avoiding the simultaneous unloading of multiple screws 5. Then, the screw 5 slides along the track to the outlet groove 204 at the bend, and is guided by the outlet groove 204 to be pushed out onto the corresponding guide plates of the first L-shaped track and the second L-shaped track plate 202. Within the guide groove 205, two-point positioning and transmission functions are realized. At the same time, the guide groove 205 ensures that the screw 5 does not deviate or get stuck during the movement of the track, so that the screw 5 is accurately aligned with the screw hole of the receiving housing 4 component. Throughout the process, the first L-shaped track plate 201 and the second L-shaped track plate 202 form a continuous path. Under the constraints of gravity and the track, the screw 5 automatically completes the entire process from unloading, guiding to ejection and moving into the installation position, ensuring that the screw 5 transmission and positioning are efficient, stable and accurate. This provides a reliable screw 5 supply and accurate alignment basis for the pre-tightening action of the screwing component 3.

[0014] In this embodiment, the screwing assembly 3 includes a slide block 301 slidably installed inside the alignment cabinet 1. A lead screw 305 is fixedly connected to the output end of a motor 302 fixed on the slide block 301. When the motor 302 rotates forward and backward, the lead screw 305 screwed to the alignment cabinet 1 drives the slide block 301 to move laterally. A first rotating wheel 303 fixed on the lead screw 305 and a second rotating wheel 304 rotatably installed inside the alignment cabinet 1 are belt driven. A square rod 307 fixed inside the second rotating wheel 304 through a one-way bearing is fixedly connected to a spring telescopic rod 306 rotatably installed on the upper part of the slide block 301. An insert rod 308 fixed at the end of the spring telescopic rod 306 is movably inserted into the slot of the screw 5. In use, the motor 302 drives the slide block 301 to move and drives the insert rod 308 to rotate to realize the screwing action. Afterward, the motor 302 reverses, drives the slide block 301 to reset, and the insert rod 308 does not rotate under the action of the one-way bearing.

[0015] The tightening assembly 3 is composed of a slide 301, a motor 302, a lead screw 305, a transmission wheel set, and a spring telescopic rod 306, which realizes the automatic tightening and resetting function of the screw 5 of the housing 4; In specific operation, the screw 5 of the housing 4 to be processed is inserted into the slot of the slide 301 and the fixed insertion rod 308 at the upper end of the slide 301. The output end of the motor 302 is fixedly connected to the lead screw 305. When the motor 302 rotates forward, the lead screw 305 drives the slide 301 to move laterally along the inside of the alignment cabinet 1. The first rotating wheel 303 fixed on the lead screw 305 meshes with the second rotating wheel 304 through belt drive. The interior of the second rotating wheel 304 is connected to the square rod 307 through a one-way bearing. The square rod 307 is then fixedly connected to the spring telescopic rod 306 on the upper part of the slide 301, so that the insertion rod 308 moves with the slide 301 and at the same time drives the insertion rod 308 to rotate around its own axis, thereby realizing the screwing action of the screw 5. The screw 5 is pre-tightened and precisely positioned in the slot. When a reset is required, the motor 302 reverses to drive the slide 301 back to its initial position. The one-way bearing causes the square rod 307 to disengage from the insertion rod 308. The insertion rod 308 does not rotate with the slide 301, but only moves with the slide 301, ensuring that the screw 5 remains tightened and is not loosened, thus completing one tightening and reset cycle. The whole process is highly automated, which can effectively reduce the intensity of manual operation, improve the accuracy and stability of the pre-positioning of the housing 4 components, and at the same time ensure that the transmission and tightening actions of the screw 5 are coordinated and unified. It is suitable for mass production of centrifugal fan housing 4 processing scenarios.

[0016] Working principle: When using this centrifugal fan housing 4 processing equipment, the housing 4 component to be processed is first placed inside the alignment cabinet 1. The alignment cabinet 1 is equipped with an alignment groove that matches the shape of the housing 4 component. The initial position constraint of the housing 4 component is achieved through plug-in connection, and its alignment accuracy in the horizontal and vertical directions is ensured. At the same time, the alignment cabinet 1 is placed at an angle in the operating room, and the position of the housing 4 component is further stabilized by gravity to prevent the component from shifting during processing. Subsequently, the guide component 2 inside the equipment is fixed on both sides of the alignment cabinet 1 to guide the screw 5 to move in a predetermined direction. The screwing component 3 drives the screw 5 to screw into the housing 4 component. The pre-tightening positioning action fixes each component of the housing 4 in the aligned state. The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A centrifugal fan housing (4) processing equipment, comprising an alignment cabinet (1), wherein the housing (4) to be processed is placed inside the alignment cabinet (1), characterized in that, Also includes: Alignment groove, the alignment groove is opened inside the alignment cabinet (1), and one side of the alignment groove is fitted and inserted into the housing (4), thereby realizing the alignment action of the housing (4) component; Guide components (2) are fixed on both sides of the alignment cabinet (1); Screw (5), the screw (5) being placed in the guide assembly (2); Tightening assembly (3), which is fixed inside the alignment cabinet (1); In use, the components of the housing (4) are placed in the alignment cabinet (1), which is tilted in the operating room to maintain the alignment of the components of the housing (4); then, the screwing component (3) drives the screw (5) to screw into the machined parts of the housing (4), realizing the pre-tightening positioning action of the screwing component (3), which makes it convenient to take out the positioned housing (4) for subsequent welding.

2. The centrifugal fan casing (4) processing equipment according to claim 1, characterized in that, The guide component (2) includes a first L-shaped track plate (201) and a second L-shaped track plate (202), which are staggered and connected.

3. The centrifugal fan casing (4) processing equipment according to claim 2, characterized in that, The second L-shaped track plate (202) has a feeding groove (203) on its upper part. The shape of the feeding groove (203) matches that of the screw (5) to prevent multiple screws (5) from achieving automated feeding action by gravity.

4. The centrifugal fan casing (4) processing equipment according to claim 3, characterized in that, The second L-shaped track plate (202) has a discharge groove (204) at the bend to guide the screw (5) out, and a guide groove (205) is provided on one side of the second L-shaped track plate (202) to match the screw (5) after installation.

5. The centrifugal fan casing (4) processing equipment according to claim 1, characterized in that, The twisting assembly (3) includes a slide (301) slidably installed inside the alignment cabinet (1). A lead screw (305) is fixedly connected to the output end of a motor (302) fixed on the slide (301). When the motor (302) rotates forward and backward, the lead screw (305) screwed to the alignment cabinet (1) drives the slide (301) to perform a lateral movement.

6. The centrifugal fan casing (4) processing equipment according to claim 5, characterized in that, The first rotating wheel (303) fixed on the lead screw (305) is belt driven by the second rotating wheel (304) rotatably installed inside the alignment cabinet (1). The square rod (307) fixed inside the second rotating wheel (304) by a one-way bearing is fixedly connected to the spring telescopic rod (306) rotatably installed on the upper part of the slide (301). The insert rod (308) fixed at the end of the spring telescopic rod (306) is movably inserted into the slot of the screw (5). In use, the motor (302) drives the slide (301) to move and drives the plug rod (308) to rotate to perform the screw-on action. Then the motor (302) reverses and drives the slide (301) to reset, and the plug rod (308) does not rotate under the action of the one-way bearing.

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