A flanging machine clamping mechanism for processing of a fan housing

Abstract

This utility model discloses a clamping mechanism for a flanging machine used in the processing of fan casings, relating to the field of fan casing processing technology. It includes a worktable, with a base rotatably mounted on the top of the worktable. A drive assembly is installed inside the worktable to drive the base to rotate on the worktable. A movable rod is vertically mounted on the base. A hydraulic cylinder is installed inside the worktable to drive the movable rod to rise and fall. Several sets of tensioning components are arranged in a circumferential array around the movable rod. This utility model's design, with its circumferential array of tensioning components around the movable rod, allows the movable rod to descend under the drive of the hydraulic cylinder, changing the angle between the first and second support rods, thereby moving the arc-shaped plate outward. By adjusting the descent height of the movable rod, the movement distance of the arc-shaped plate can be changed, thus enabling positioning for fan casings of different diameters and improving the versatility of the flanging machine.

Description

Technical Field

[0001] This utility model relates to the field of fan housing processing technology, and in particular to a flanging machine clamping mechanism for fan housing processing. Background Technology

[0002] Axial flow fans have wide applications in production and daily life, and existing axial flow fan casings typically adopt a cylindrical structure. To facilitate installation and connection of the fan casing, a flange-like edge is generally required. During manufacturing, this flange-like edge is usually obtained by simply flipping the side of the fan casing outwards by 90 degrees. In current technology, a flanging machine is typically used to flanging the fan casing; however, existing flanging machines can only clamp and fix one type of fan casing, resulting in poor versatility. Utility Model Content

[0003] In order to overcome the above-mentioned defects in the prior art, the present invention provides a flanging machine clamping mechanism for processing fan housings.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a clamping mechanism for a flanging machine used for processing fan casings, including a worktable, a base rotatably mounted on the top of the worktable, a drive assembly installed inside the worktable for driving the base to rotate on the worktable, a movable rod mounted on the base that can be raised and lowered, a hydraulic cylinder installed inside the worktable for driving the movable rod to rise and fall, a plurality of sets of tensioning assemblies arranged in a circumferential array around the movable rod, the tensioning assembly including an arc-shaped plate, a first support rod hinged to the bottom inner side of the arc-shaped plate, the other end of the first support rod hinged to the movable rod, a second support rod movably mounted to the top inner side of the arc-shaped plate, the other end of the second support rod hinged to the base, and the middle parts of the first support rod and the second support rod hinged to each other.

[0005] Furthermore, the drive assembly includes a geared motor, a first bevel gear, and a second bevel gear. The geared motor is fixedly installed inside the workbench, the first bevel gear is fixedly installed at the power output end of the geared motor, and the second bevel gear is fixedly installed at the bottom end of the base. The first bevel gear and the second bevel gear mesh with each other.

[0006] Furthermore, the base is a ring-shaped structure, the movable rod is installed on the inner side of the base, the inner wall of the base is provided with limit blocks arranged in a circumferential array, and the side wall of the movable rod is provided with a sliding groove that matches the limit blocks.

[0007] Furthermore, a fixed platform is fixedly installed at the bottom end of the movable rod, and a rotating platform is rotatably installed at the bottom of the fixed platform. The power output end of the hydraulic cylinder is fixedly connected to the rotating platform, and the hydraulic cylinder is fixedly installed on the bottom inner wall of the workbench.

[0008] Furthermore, a number of fixing blocks are fixedly installed at the top of the movable rod. The fixing blocks are arranged in a circumferential array on the movable rod. The number of fixing blocks is consistent with the number of the first support rods. A first support seat is fixedly installed on the fixing block. The end of the first support rod near the movable rod is rotatably installed on the first support seat. A second support seat is fixedly installed at the bottom inner side of the arc plate. The end of the first support rod away from the movable rod is rotatably installed on the second support seat.

[0009] Furthermore, a third support seat is fixedly installed on the inner top of the arc-shaped plate. The side of the third support seat has an oblong hole that extends along the axis of the movable rod. A connecting rod is fitted inside the oblong hole. The connecting rod is fixedly installed at the end of the second support rod. A fourth support seat is rotatably installed at the end of the second support rod away from the connecting rod. The fourth support seat is fixedly installed on the top of the base.

[0010] Furthermore, the base is provided with several sets of support components on its periphery. The support components and the arc plate are arranged alternately. Each support component includes a fixing frame, which is fixedly installed on the top of the workbench. A cylinder is fixedly installed on the fixing frame, and a support plate is fixedly installed on the power output end of the cylinder.

[0011] The beneficial effects of this utility model are that the design scheme of this utility model is to set several sets of tensioning components in the circumferential array around the movable rod. The movable rod is driven by the hydraulic cylinder to descend, which changes the angle between the first support rod and the second support rod, thereby causing the arc plate to move outward. By adjusting the descent height of the movable rod, the moving distance of the arc plate can be changed, thereby positioning for fan cylinders of different diameters, which is conducive to improving the versatility of the flanging machine. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is the front view of the present invention;

[0015] Figure 3 This is the left view of the present invention;

[0016] Figure 4 This is a top view of the present invention;

[0017] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0018] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0019] Figure 7 This is a schematic diagram of the structure of the present invention when fixing the fan casing.

[0020] In the diagram: 1. Workbench, 2. Base, 3. Movable rod, 4. Arc plate, 5. First support rod, 6. Second support rod, 7. Gear reducer motor, 8. First bevel gear, 9. Second bevel gear, 10. Limiting block, 11. Slide groove, 12. Fixed platform, 13. Rotary platform, 14. Fixed block, 15. First support seat, 16. Second support seat, 17. Third support seat, 18. Waist-shaped hole, 19. Connecting rod, 20. Fourth support seat, 21. Fixed frame, 22. Cylinder, 23. Support plate, 24. Hydraulic cylinder, 25. Fan casing. Detailed Implementation

[0021] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0022] according to Figure 1-7 As shown, a flanging machine clamping mechanism for processing fan casings includes a worktable 1, a base 2 rotatably mounted on the top of the worktable 1, a drive assembly installed inside the worktable 1 for driving the base 2 to rotate on the worktable 1, a movable rod 3 mounted on the base 2 for lifting and lowering, a hydraulic cylinder 24 for driving the movable rod 3 to lift and lower inside the worktable 1, and several sets of tensioning assemblies arranged circumferentially around the movable rod 3. The tensioning assemblies include an arc-shaped plate 4, a first support rod 5 hinged to the bottom inner side of the arc-shaped plate 4, the other end of the first support rod 5 hinged to the movable rod 3, a second support rod 6 movably mounted to the top inner side of the arc-shaped plate 4, the other end of the second support rod 6 hinged to the base 2, and the middle parts of the first support rod 5 and the second support rod 6 hinged to each other.

[0023] In this embodiment, the drive assembly includes a geared motor 7, a first bevel gear 8, and a second bevel gear 9. The geared motor 7 is fixedly installed inside the workbench 1 via a motor bracket. The first bevel gear 8 is fixedly installed at the power output end of the geared motor 7. The second bevel gear 9 is fixedly installed at the bottom end of the base 2. The first bevel gear 8 and the second bevel gear 9 mesh with each other. The geared motor 7 drives the first bevel gear 8 to rotate. With the cooperation of the first bevel gear 8 and the second bevel gear 9, the base 2 rotates on the workbench 1.

[0024] In this embodiment, the base 2 is a ring-shaped structure, and the movable rod 3 is installed on the inner side of the base 2. Limiting blocks 10 are arranged in a circumferential array on the inner wall of the base 2. The side wall of the movable rod 3 is provided with a sliding groove 11 that matches the limiting block 10. When the base 2 and the movable rod 3 are installed together, the limiting block 10 is installed in the sliding groove 11. When the motor drives the base 2 to rotate, the base 2 drives the movable rod 3 to rotate under the cooperation of the limiting block 10 and the sliding groove 11.

[0025] In this embodiment, a fixed platform 12 is fixedly installed at the bottom end of the movable rod 3, and a rotating platform 13 is rotatably installed at the bottom of the fixed platform 12. The power output end of the hydraulic cylinder 24 is fixedly connected to the rotating platform 13. The hydraulic cylinder 24 is fixedly installed on the bottom inner wall of the workbench 1. The movable rod 3 is supported by the hydraulic cylinder 24, and with the cooperation of the rotating platform 13 and the fixed platform 12, the movable rod 3 can rotate relative to the hydraulic cylinder 24. When the push rod of the hydraulic cylinder 24 retracts, the movable rod 3 descends, and vice versa, the movable rod 3 rises, thereby realizing the lifting and lowering of the movable rod 3 on the base 2.

[0026] In this embodiment, a plurality of fixing blocks 14 are fixedly installed at the top of the movable rod 3. The fixing blocks 14 are arranged in a circumferential array on the movable rod 3, and the number of fixing blocks 14 is consistent with the number of first support rods 5. A first support seat 15 is fixedly installed on the fixing blocks 14. The end of the first support rod 5 near the movable rod 3 is rotatably installed on the first support seat 15. A second support seat 16 is fixedly installed at the bottom inner side of the arc plate 4. The end of the first support rod 5 away from the movable rod 3 is rotatably installed on the second support seat 16. A third support seat 17 is fixedly installed at the top inner side of the arc plate 4. The side of the third support seat 17 is open. A waist-shaped hole 18 is provided, which extends along the axis of the movable rod 3. A connecting rod 19 is installed inside the waist-shaped hole 18. The connecting rod 19 is fixedly installed at the end of the second support rod 6. A fourth support seat 20 is rotatably installed at the end of the second support rod 6 away from the connecting rod 19. The fourth support seat 20 is fixedly installed at the top of the base 2. When it is necessary to fix the fan casing 25, the movable rod 3 is driven by the hydraulic cylinder 24 to descend, which changes the angle between the first support rod 5 and the second support rod 6, thereby causing the arc plate 4 to move outward and abut against the inner wall of the fan casing 25, thereby tightening and fixing the fan casing 25.

[0027] In this embodiment, several sets of support components are arranged around the base 2. The support components and the arc plate 4 are arranged alternately. The support components include a fixing frame 21, which is fixedly installed on the top of the workbench 1. A cylinder 22 is fixedly installed on the fixing frame 21. A support plate 23 is fixedly installed on the power output end of the cylinder 22. The support plate 23 extends along the radial direction of the base 2. When fixing the fan cylinder 25 with different diameters, the cylinder 22 drives the support plate 23 to rise. The support plate 23 supports the bottom end of the fan cylinder 25. After the tensioning component fixes the fan cylinder 25, the cylinder 22 drives the support plate 23 to fall and reset, so that the support plate 23 is separated from the fan cylinder 25, so as to facilitate the subsequent flanging work.

[0028] In use, the present invention first activates cylinder 22 via an external controller. The push rod of cylinder 22 extends, causing support plate 23 to rise. Then, the operator places the fan barrel 25 to be processed onto the outer periphery of arc plate 4. At this time, the support plate 23 supports the fan barrel 25. Then, hydraulic cylinder 24 is activated, and movable rod 3 descends under the drive of hydraulic cylinder 24, changing the angle between the first support rod 5 and the second support rod 6, thereby moving arc plate 4 outward until arc plate 4 abuts against the inner wall of fan barrel 25. Under the expansion and tightening action of arc plate 4, fan barrel 25 is fixed. The moving distance of arc plate 4 is changed by adjusting the descending height of movable rod 3, thereby positioning fan barrels 25 of different diameters. After cylinder 22 drives support plate 23 to separate from fan barrel 25, reducer motor 7 is activated, and reducer motor 7 drives base 2 to rotate on worktable 1. Movable rod 3 rotates synchronously with base 2, thereby rotating fan barrel 25 to cooperate with the flanging mechanism to perform flanging processing on fan barrel 25.

[0029] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A flanging machine clamping mechanism for processing fan housings, comprising a worktable (1), characterized in that: A base (2) is rotatably mounted on the top of the workbench (1). A drive assembly is installed inside the workbench (1) to drive the base (2) to rotate on the workbench (1). A movable rod (3) is mounted on the base (2) and can be raised and lowered. A hydraulic cylinder (24) for driving the movable rod (3) to rise and fall is installed inside the workbench (1). Several sets of tensioning assemblies are arranged in a circumferential array around the movable rod (3). The tensioning assembly includes an arc plate (4). A first support rod (5) is hinged to the bottom inner side of the arc plate (4). The other end of the first support rod (5) is hinged to the movable rod (3). A second support rod (6) is movably mounted on the top inner side of the arc plate (4). The other end of the second support rod (6) is hinged to the base (2). The middle parts of the first support rod (5) and the second support rod (6) are hinged to each other.

2. The flanging machine clamping mechanism for processing fan housings according to claim 1, characterized in that, The drive assembly includes a geared motor (7), a first bevel gear (8), and a second bevel gear (9). The geared motor (7) is fixedly installed inside the workbench (1). The first bevel gear (8) is fixedly installed at the power output end of the geared motor (7). The second bevel gear (9) is fixedly installed at the bottom end of the base (2). The first bevel gear (8) and the second bevel gear (9) mesh with each other.

3. The flanging machine clamping mechanism for processing fan housings according to claim 2, characterized in that, The base (2) is a ring-shaped structure. The movable rod (3) is installed on the inner side of the base (2). Limiting blocks (10) are arranged in a circumferential array on the inner wall of the base (2). A sliding groove (11) matching the limiting block (10) is opened on the side wall of the movable rod (3).

4. A flanging machine clamping mechanism for processing fan housings according to claim 2, characterized in that, A fixed platform (12) is fixedly installed at the bottom end of the movable rod (3), and a rotating platform (13) is rotatably installed at the bottom of the fixed platform (12). The power output end of the hydraulic cylinder (24) is fixedly connected to the rotating platform (13), and the hydraulic cylinder (24) is fixedly installed on the bottom inner wall of the workbench (1).

5. A flanging machine clamping mechanism for processing fan housings according to claim 1, characterized in that, Several sets of fixing blocks (14) are fixedly installed at the top of the movable rod (3). The fixing blocks (14) are arranged in a circumferential array on the movable rod (3). The number of fixing blocks (14) is consistent with the number of the first support rods (5). A first support seat (15) is fixedly installed on the fixing block (14). The end of the first support rod (5) close to the movable rod (3) is rotatably installed on the first support seat (15). A second support seat (16) is fixedly installed at the bottom inner side of the arc plate (4). The end of the first support rod (5) away from the movable rod (3) is rotatably installed on the second support seat (16).

6. A flanging machine clamping mechanism for processing fan housings according to claim 5, characterized in that, A third support base (17) is fixedly installed on the inner top of the arc plate (4). A waist-shaped hole (18) is opened on the side of the third support base (17). The waist-shaped hole (18) extends along the axis of the movable rod (3). A connecting rod (19) is installed in the waist-shaped hole (18). The connecting rod (19) is fixedly installed at the end of the second support rod (6). A fourth support base (20) is rotatably installed at the end of the second support rod (6) away from the connecting rod (19). The fourth support base (20) is fixedly installed at the top of the base (2).

7. A flanging machine clamping mechanism for processing fan housings according to claim 1, characterized in that, The base (2) is surrounded by several sets of support components. The support components are interleaved with the arc plate (4). The support components include a fixed frame (21). The fixed frame (21) is fixedly installed on the top of the workbench (1). A cylinder (22) is fixedly installed on the fixed frame (21). A support plate (23) is fixedly installed on the power output end of the cylinder (22).

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