Cutting device for sheet metal fan casing

Abstract

The utility model relates to the technical field of fan processing, specifically to a cutting device for a sheet metal fan casing, comprising a cutting part and a bearing part; a turntable is rotatably installed above the bearing plate, and a strip groove is opened on the top of the turntable; a double-headed screw is rotatably installed in the strip groove, and vertical plates are threadedly connected at the threads at both ends of the double-headed screw, and a clamping block is fixed at the top of the vertical plate; the cylindrical raw material is fixed by two clamping blocks arranged on the turntable, the raw material can be rotated on the turntable, and the height of the raw material can be adjusted as the bearing plate is raised and lowered, and the clamping part can not only ensure the stability of the raw material when clamping the raw material, but also facilitate the rotation of the raw material. This design can make the raw material rotate when cutting the raw material of the sheet metal fan casing, which is not only convenient for adjusting the cutting position, but also convenient for cutting the raw material at one time by a laser cutting head, thereby improving the convenience of the cutting operation.

Description

Technical Field

[0001] The utility model relates to the technical field of fan processing, in particular to a cutting device for a sheet metal fan casing. Background Art

[0002] The sheet metal fan casing refers to an outer shell made of sheet metal material for protecting the fan blades. It is a common component structure of the fan together with the fan blades, motor, reducer, etc. Different fans have different casings. For example, the casing of an axial flow fan is cylindrical. During the casing cutting stage of the axial flow fan, the casing needs to be cut from the cylindrical material body, and then the cut cylindrical body is subjected to a series of processing such as stamping, drilling, painting and polishing to obtain the casing. The existing cutting equipment is cutting.

[0003] The utility model patent with authorization announcement number CN209867991U discloses a cutting device for processing motorcycle motor shells, which includes a cutting machine body, support columns are fixedly installed on both sides of the top of the cutting machine body, a support plate is fixedly installed on the end of the support column away from the cutting machine body, a double-axis motor is fixedly installed at the center of the top of the support plate, the output shaft of the double-axis motor is connected to a threaded rod through a coupling, the surface of the threaded rod is threadedly adjusted with a fixing plate, a U-shaped frame is fixedly installed on the bottom outer wall of the fixing plate, and movable openings corresponding to the fixing plate are provided on both sides of the support plate. The surface edge of the U-shaped frame is fixedly installed with a connecting rod, and the center of the surface of the side of the connecting rod away from the U-shaped frame is fixedly connected with a fixing rod, and the end of the fixing rod away from the connecting rod is fixedly installed with a clamping plate, the bottom of the connecting rod passes through the cutting machine body and extends to the end inside the cutting machine body and is fixedly connected with a slider, and a cavity corresponding to the slider is opened inside the cutting machine body; through the cooperation of the dual-axis motor, threaded rod, fixing plate, connecting rod, fixing rod and clamping plate, the motorcycle motor housing can be clamped and fixed, so that when it is cut, the displacement of the motor housing and the inaccurate cutting position caused by the displacement of the motor housing are avoided, so that the cutting effect is better.

[0004] Although the cutting device for processing motorcycle motor casing improves cutting accuracy by clamping the motor casing, the device has the following problems in actual use: when the casing of the device is cut, it is difficult to rotate the casing because the casing is clamped and fixed, and the design causes the casing to be fixed and loosened multiple times during the cutting process to change the working position, which makes the cutting of the casing very inconvenient. In view of this, we propose a cutting device for sheet metal fan casing. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a cutting device for a sheet metal fan casing.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A cutting device for a sheet metal fan casing, comprising a cutting portion and a bearing portion;

[0008] The cutting part includes a top seat, a material hole for raw materials to pass through is opened at the center of the top seat; support rods are fixed at the four corners of the bottom of the top seat, and a support plate is fixed between two adjacent support rods; a laser cutting head is fixed at the rear side of the top of the top seat;

[0009] The bearing part is arranged at the bottom of the top seat in a liftable manner; it includes a bearing plate, a support rod passes through the bearing plate and is slidably connected to the bearing plate, a threaded rod is threadedly connected to one end of the bearing plate, and a first motor for driving the threaded rod to rotate is provided below the threaded rod; a turntable is rotatably installed above the bearing plate, and a strip groove is provided on the top of the turntable; a double-headed screw rod is rotatably installed in the strip groove, and vertical plates are threadedly connected to the threads at both ends of the double-headed screw rod, and a clamping block is fixed at the top of the vertical plate; a connecting shaft is coaxially fixed at the bottom center of the turntable, the connecting shaft passes through the turntable and is rotatably connected to the turntable, the bottom end of the connecting shaft is coaxially keyed with a first gear, a second gear is meshed with a side of the first gear, and a second motor for driving the second gear to rotate is installed below the bearing plate;

[0010] Two symmetrical clamping parts are arranged above and below the top seat, and the clamping parts include a clamping seat, and a plurality of notches are opened on the inner wall of the clamping seat, rollers are rotatably installed in the notches, and an electric cylinder for driving the clamping seat to move horizontally is installed on one side of the clamping seat.

[0011] Furthermore, two opposite end surfaces of the two clamping blocks are both arc-shaped, and the clamping blocks are fixedly connected to the vertical plate by bolts.

[0012] Furthermore, the end of the double-ended screw rod extends out to the outside, and the end of the double-ended screw rod is coaxially keyed to an adjusting screw.

[0013] Furthermore, two symmetrical first support plates and second support plates are fixed to the top and bottom of the top seat respectively, and the electric cylinder is fixed to the corresponding first support plate and second support plate by bolts.

[0014] Furthermore, the top end of the threaded rod is rotatably connected to the top seat through a bearing, and the bottom end of the threaded rod is rotatably connected to the support plate through a bearing.

[0015] Furthermore, a baffle is installed on the front side of the top of the top seat, and the baffle is located directly in front of the laser cutting head.

[0016] Furthermore, the turntable is located directly below the material hole, and the turntable is made of stainless steel.

[0017] Furthermore, two opposite end surfaces of the two clamping blocks are both embedded with a plurality of anti-slip strips, and the anti-slip strips are made of rubber material.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] By setting the cutting part, the bearing part and the clamping part: the cylindrical raw material is fixed by two clamping blocks arranged on the turntable, the raw material can be rotated on the turntable, and the height of the raw material can be adjusted as the bearing plate is raised and lowered, and the clamping part can not only ensure the stability of the raw material when clamping the raw material, but also facilitate the rotation of the raw material. This design can make the raw material rotate when cutting the raw material of the sheet metal fan casing, which is not only convenient for adjusting the cutting position, but also convenient for the laser cutting head to cut the raw material at one time, thereby improving the convenience of the cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the cutting part in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the bearing part in the utility model;

[0023] Figure 4 It is a schematic diagram of the explosion structure of the load-bearing part in the utility model;

[0024] Figure 5 It is a partial structural schematic diagram of the load-bearing part in the utility model;

[0025] Figure 6 It is a structural schematic diagram of the clamping part in the utility model.

[0026] In the figure:

[0027] 1. Cutting part; 10. Top seat; 11. First support plate; 12. Laser cutting head; 13. Baffle; 14. Support rod; 15. Support plate; 16. Second support plate;

[0028] 2. bearing part; 20. bearing plate; 201. fixing frame; 202. guide rail; 21. threaded rod; 22. first motor; 23. turntable; 231. connecting shaft; 24. first gear; 25. second gear; 26. second motor; 27. double-headed screw; 271. adjusting screw; 28. vertical plate; 281. guide groove; 29. ​​clamping block; 291. anti-slip strip;

[0029] 3. Clamping part; 30. Electric cylinder; 31. Clamping seat; 311. Notch; 32. Roller. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] This embodiment provides a technical solution:

[0032] See also Figure 1-Figure 6 The cutting device of the sheet metal fan casing comprises a cutting part 1 and a bearing part 2. The cutting part 1 comprises a top seat 10, and a material hole for the raw material to pass through is provided at the center of the top seat 10; support rods 14 are fixed at the four corners of the bottom of the top seat 10, and a support plate 15 is fixed between two adjacent support rods 14; a laser cutting head 12 is fixed at the top rear side of the top seat 10, and the laser cutting head 12 is fixedly connected to the top seat 10 by bolts; the bearing part 2 is arranged at the bottom of the top seat 10 in a liftable manner; it comprises a bearing plate 20, and the support rod 14 passes through the bearing plate 20 and is slidably connected to the bearing plate 20, and a threaded rod 21 is threadedly connected at one end of the bearing plate 20, and a first motor 22 for driving the threaded rod 21 to rotate is provided below the threaded rod 21; a turntable 23 is rotatably installed above the bearing plate 20, and a strip groove is provided on the top of the turntable 23; a double-headed screw 27 is rotatably installed in the strip groove, and the double-headed screw 27 The threads at both ends are threadedly connected with vertical plates 28, and a clamping block 29 is fixed at the top of the vertical plate 28; a connecting shaft 231 is coaxially fixed at the bottom center of the turntable 23, the turntable 23 and the connecting shaft 231 are fixedly connected by bolts, the connecting shaft 231 passes through the turntable 23 and is rotatably connected to the turntable 23, the bottom end of the connecting shaft 231 is coaxially keyed with a first gear 24, a second gear 25 is meshed with one side of the first gear 24, and a second motor 26 for driving the second gear 25 to rotate is installed below the bearing plate 20; two symmetrical clamping parts 3 are provided above and below the top seat 10, the clamping part 3 includes a clamping seat 31, a plurality of notches 311 are opened on the inner wall of the clamping seat 31, a roller 32 is rotatably installed in the notch 311, and an electric cylinder 30 for driving the clamping seat 31 to move horizontally is installed on one side of the clamping seat 31.

[0033] In this embodiment, the two opposite end faces of the two clamping blocks 29 are both arc-shaped, and the clamping blocks 29 are fixedly connected to the vertical plate 28 by bolts. This design facilitates the outer wall of the clamping block 29 to fit the inner wall of the barrel material, thereby facilitating the clamping and fixing of the barrel material.

[0034] In this embodiment, the end of the double-ended screw 27 is extended to the outside, and the end of the double-ended screw 27 is coaxially keyed with an adjusting screw 271. By rotating the adjusting screw 271, the double-ended screw 27 can be easily rotated, thereby improving the convenience of operation.

[0035] In this embodiment, two symmetrical first support plates 11 and second support plates 16 are respectively fixed to the top and bottom of the top seat 10, and the electric cylinder 30 is fixed to the corresponding first support plates 11 and second support plates 16 by bolts. The first support plates 11 and second support plates 16 play a stable supporting role for the multiple clamping parts 3, ensuring the stability of the clamping parts 3.

[0036] In this embodiment, the top end of the threaded rod 21 is rotatably connected to the top seat 10 through a bearing, and the bottom end of the threaded rod 21 is rotatably connected to the support plate 15 through a bearing. The bearing supports and supports the rotation of the threaded rod 21, ensuring that the threaded rod 21 rotates smoothly and stably.

[0037] In this embodiment, a baffle 13 is installed at the front side of the top of the top seat 10, and the baffle 13 is located directly in front of the laser cutting head 12. The baffle 13 is provided to prevent the laser of the laser cutting head 12 from being emitted to the outside, thereby improving the safety of the laser cutting head 12.

[0038] In this embodiment, the turntable 23 is located directly below the material hole, and the turntable 23 is made of stainless steel. This design facilitates the cylindrical raw material fixed on the turntable 23 to pass through the material hole, making it convenient to cut the cylindrical raw material.

[0039] In this embodiment, two opposite end surfaces of the two clamping blocks 29 are embedded with a plurality of anti-slip strips 291, and the anti-slip strips 291 are made of rubber material. The anti-slip strips 291 can increase the friction between the clamping blocks 29 and the inner wall of the cylindrical raw material, thereby improving the clamping effect on the cylindrical raw material.

[0040] It should be added that the overall shape of the clamping seat 31 in this embodiment is arc-shaped. The multiple rollers 32 rotatably installed at the clamping seat 31 are clamped on the outer wall of the cylindrical raw material, ensuring the clamping effect on the cylindrical raw material.

[0041] It can be understood that the bottom of the supporting plate 20 in this embodiment is fixedly connected to the fixing frame 201 by bolts, and the second motor 26 is fixedly connected to the fixing frame 201 by bolts. The fixing frame 201 supports the second motor 26 and ensures the stability of the second motor 26.

[0042] In addition, a guide groove 281 is provided at the bottom end of the vertical plate 28 in this embodiment, a guide rail 202 is fixed to the top of the supporting plate 20, and the guide rail 202 is slidably connected to the guide groove 281. This design provides a guide for the horizontal movement of the vertical plate 28, thereby improving the stability and smoothness of the vertical plate 28.

[0043] It is worth noting that the first motor 22 and the second motor 26 involved in this embodiment are existing conventional technologies and will not be described in detail here.

[0044] Before specific use, the user first passes the cylindrical raw material through the material hole and places it on the top of the turntable 23, and then the user rotates the adjusting screw 271, and the adjusting screw 271 drives the double-headed screw 27 to rotate. As the double-headed screw 27 rotates, the two vertical plates 28 move relative to each other synchronously, and the vertical plates 28 simultaneously drive the clamping blocks 29 on both sides to move relative to each other synchronously. When the clamping blocks 29 are clamped on the inner wall of the cylindrical raw material, the user stops the adjusting screw 271; then the user turns on the power of the first motor 22, and the first motor 22 starts The output shaft of the first motor 22 rotates to drive the threaded rod 21 to rotate. As the threaded rod 21 rotates, the carrier plate 20 drives the cylindrical raw material to move upward. When the cylindrical raw material moves to a suitable height, the user stops the power supply of the first motor 22. Next, the user switches on the power supply of the multiple electric cylinders 30. The electric cylinders 30 start to work. The piston rods of the electric cylinders 30 extend and drive the clamping seat 31 to approach the cylindrical raw material. When the multiple rollers 32 are pressed against the outer wall of the cylindrical raw material, the user stops the power supply of the electric cylinders 30, and the cylindrical raw material is fixed.

[0045] During specific use, the user first turns on the power of the second motor 26 and the laser cutting head 12, and the second motor 26 and the laser cutting head 12 start working. The output shaft of the second motor 26 rotates to drive the second gear 25 to rotate. Since the second gear 25 is meshed with the first gear 24, the first gear 24 rotates and drives the connecting shaft 231 and the turntable 23 to rotate. As the turntable 23 rotates, the cylindrical raw material rotates synchronously. At the same time, the laser cutting head 12 starts working and cuts the rotating cylindrical raw material.

[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cutting device for a sheet metal fan casing, comprising a cutting portion (1) and a bearing portion (2), characterized in that: The cutting part (1) comprises a top seat (10), a material hole for raw materials to pass through is opened at the center of the top seat (10); support rods (14) are fixed at the four corners of the bottom of the top seat (10), and a support plate (15) is fixed between two adjacent support rods (14); a laser cutting head (12) is fixed at the rear side of the top of the top seat (10); The bearing part (2) is movably arranged below the top seat (10); it comprises a bearing plate (20); a support rod (14) passes through the bearing plate (20) and is slidably connected to the bearing plate (20); a threaded rod (21) is threadedly connected to one end of the bearing plate (20); a first motor (22) for driving the threaded rod (21) to rotate is provided below the threaded rod (21); a turntable (23) is rotatably installed above the bearing plate (20); a strip groove is provided on the top of the turntable (23); a double-headed screw rod (27) is rotatably installed in the strip groove; the double-headed screw rod (27) The threads at both ends of the rotating disk (27) are both threadedly connected with a vertical plate (28), and a clamping block (29) is fixed at the top of the vertical plate (28); a connecting shaft (231) is coaxially fixed at the bottom center of the rotating disk (23), the connecting shaft (231) passes through the rotating disk (23) and is rotatably connected to the rotating disk (23), the bottom end of the connecting shaft (231) is coaxially keyed with a first gear (24), one side of the first gear (24) is meshed with a second gear (25), and a second motor (26) for driving the second gear (25) to rotate is installed below the carrier plate (20); Two symmetrical clamping parts (3) are provided above and below the top seat (10), and the clamping parts (3) include a clamping seat (31). The inner wall of the clamping seat (31) is provided with a plurality of notches (311), and rollers (32) are rotatably installed in the notches (311). An electric cylinder (30) for driving the clamping seat (31) to move horizontally is installed on one side of the clamping seat (31).

2. The sheet metal fan casing cutting device according to claim 1, characterized in that: Two opposite end surfaces of the two clamping blocks (29) are both arc-shaped, and the clamping blocks (29) are fixedly connected to the vertical plate (28) by bolts.

3. The sheet metal fan casing cutting device according to claim 1, characterized in that: The end of the double-ended screw rod (27) is extended outward to the outside, and the end of the double-ended screw rod (27) is coaxially key-connected with an adjusting screw (271).

4. The sheet metal fan casing cutting device according to claim 1, characterized in that: Two symmetrical first support plates (11) and second support plates (16) are fixed to the top and bottom of the top seat (10), respectively, and the electric cylinder (30) is fixed to the corresponding first support plate (11) and second support plate (16) by bolts.

5. The sheet metal fan casing cutting device according to claim 1, characterized in that: The top end of the threaded rod (21) is rotatably connected to the top seat (10) via a bearing, and the bottom end of the threaded rod (21) is rotatably connected to the support plate (15) via a bearing.

6. The sheet metal fan casing cutting device according to claim 1, characterized in that: A baffle (13) is installed at the front side of the top of the top seat (10), and the baffle (13) is located directly in front of the laser cutting head (12).

7. The sheet metal fan casing cutting device according to claim 1, characterized in that: The rotating disk (23) is located directly below the material hole, and the rotating disk (23) is a product made of stainless steel.

8. The sheet metal fan casing cutting device according to claim 1, characterized in that: Two opposite end surfaces of the two clamping blocks (29) are both embedded with a plurality of anti-slip strips (291), and the anti-slip strips (291) are made of rubber material.

Images