A shearing machine for processing sheet metal for transformer fan air ducts

Abstract

This utility model discloses a shearing machine for processing sheet metal for transformer fan ducts, relating to the field of sheet metal processing technology. It includes a processing table and a support frame mounted above the processing table, as well as a protective plate installed below the support frame. An upper blade is mounted on the lower surface of the protective plate, and a lower blade is mounted on the upper surface of the processing table. The positions of the upper and lower blades correspond. A fixing component for clamping and securing the sheet metal is also provided inside the processing table. This shearing machine for processing transformer fan duct sheet metal uses the fixing component to secure the sheet metal, ensuring stability during shearing, preventing uneven cuts due to movement, thus improving shearing accuracy. It also prevents accidental slippage of the sheet metal during shearing, reducing the risk of injury to the operator. Furthermore, by adjusting the position of the fixing plate, it can fix sheet metal of different sizes, improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to a shearing machine, specifically a shearing machine for processing sheet metal for transformer fan air ducts, belonging to the field of sheet metal processing technology. Background Technology

[0002] Transformer fan ducts are an important component of transformer cooling systems. They are mainly used to guide airflow, improve heat dissipation efficiency, and optimize the duct structure. During the processing of transformer fan ducts, the sheet metal needs to be cut into fixed specifications. If the cutting error causes misalignment of the joints, it may lead to air leakage or abnormal noise in the transformer fan duct.

[0003] Shearing of sheet metal is generally performed using a shearing machine. A shearing machine is a machine that uses one blade to reciprocate linearly relative to another to shear sheet metal. By using a moving upper blade and a fixed lower blade with a suitable blade gap, shearing force is applied to metal sheets of various thicknesses, causing the sheet metal to break and separate to the required dimensions. Shearing machines belong to the category of forging and pressing machinery and are mainly used in the metal processing industry. They are a widely used shearing equipment in machining, capable of shearing steel plates of various thicknesses. However, when shearing sheet metal, the sheet is usually placed on the worktable and the blade directly cuts it. This often results in uneven cuts. Furthermore, shearing machines lack protective structures, and the sheared sheet metal can splatter during processing, potentially causing cuts to the user.

[0004] Therefore, a shearing machine for processing transformer fan air duct plates is proposed here. Utility Model Content

[0005] This utility model proposes a shearing machine for processing transformer fan duct plates, which solves the problems of the prior art where the plates are directly sheared by blades, resulting in uneven cuts. In addition, the shearing machine lacks a protective structure, and the sheared plates may splash during the shearing process, which may scratch the user.

[0006] This utility model is achieved through the following technical solution: a shearing machine for processing transformer fan air duct plates, including a processing table and a support frame set above the processing table, and a protective plate installed below the support frame. An upper blade is installed on the lower surface of the protective plate, and a lower blade is installed on the upper surface of the processing table. The positions of the upper blade and the lower blade are corresponding. A fixing component for clamping and fixing the plate is also provided inside the processing table.

[0007] The lower surface of the protective plate is provided with a telescopic groove, and a telescopic rod is fixed to the inner wall of the telescopic groove. A pressure plate is fixed to the lower end of the telescopic rod. The pressure plate is used to shield the splashed plate. The moving distance of the pressure plate in the telescopic groove is greater than the shearing depth of the upper blade.

[0008] Furthermore, the pressure plate is L-shaped and symmetrically arranged on both sides of the upper blade. A negative pressure air chamber is opened inside the protective plate. Multiple dust suction heads are also installed on the lower surface of the protective plate. The dust suction heads are connected to the negative pressure air chamber. A connecting pipe is installed on the surface of the protective plate. The negative pressure air chamber is connected to an external vacuuming device through the connecting pipe.

[0009] Furthermore, an electric actuator and a support rod are fixed on the lower surface of the support frame. The output end of the electric actuator and the lower end of the support rod are both fixed on the upper surface of the protective plate. There are two support rods, which are symmetrically arranged on both sides of the electric actuator.

[0010] Furthermore, the fixing component includes a bidirectional threaded rod, and a transmission chamber is provided inside the processing table. One end of the bidirectional threaded rod is rotatably connected to the inner wall of the transmission chamber, and the other end of the bidirectional threaded rod passes through the transmission chamber. A threaded cap is threadedly connected to the surface of the bidirectional threaded rod, and a connecting rod is fixed to the surface of the threaded cap. A fixing plate is fixed to the upper end of the connecting rod. There are two fixing plates, two connecting rods, and two threaded caps, which are symmetrically arranged on the surface of the bidirectional threaded rod.

[0011] Furthermore, one end of the bidirectional threaded rod is fixedly connected to a first sprocket. There are two bidirectional threaded rods, and one end of the other bidirectional threaded rod is fixedly connected to a second sprocket. The first sprocket and the second sprocket are connected by a toothed chain drive, and one end of any one of the bidirectional threaded rods is connected to the output end of an external driving device.

[0012] Furthermore, the upper surface of the machining table is provided with a movable groove, which is connected to the transmission chamber. The connecting rod passes through the movable groove. A slider is fixed on the lower surface of the fixed plate. A sliding groove corresponding to the slider is provided on the upper surface of the machining table. The slider moves inside the sliding groove. There are two sliders and two sliding grooves, which are symmetrically arranged below the fixed plate.

[0013] This utility model provides a shearing machine for processing transformer fan air duct plates, which has the following beneficial effects:

[0014] 1. This shearing machine for processing transformer fan duct plates uses a fixing component to fix the plate, which not only ensures the plate remains stable during the shearing process and avoids uneven cuts caused by movement, thus improving shearing accuracy, but also prevents the plate from accidentally sliding during the shearing process, reducing the risk of injury to the operator. Furthermore, by adjusting the position of the fixing plate, plates of different sizes can be fixed, improving the practicality of the device.

[0015] 2. The shearing machine for processing transformer fan duct plates uses a protective plate to shield against flying debris generated during shearing, significantly reducing the risk of injury to operators. Furthermore, the pressure plate located below the protective plate applies downward pressure to the plate to be sheared, further preventing displacement during shearing and ensuring shearing accuracy. At the same time, the negative pressure air chamber inside the protective plate, along with the dust suction head and connecting pipe connected to the negative pressure air chamber, can clean up the debris generated during shearing, reducing tool wear caused by debris. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the protective plate in this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Explanation of reference numerals in the attached figures

[0021] 1. Machining table; 101. Transmission chamber; 102. Movable groove; 103. Slide groove;

[0022] 2. Support frame; 201. Electric actuator; 202. Support rod;

[0023] 3. Protective plate; 301. Telescopic groove; 302. Telescopic rod; 303. Pressure plate; 304. Negative pressure air chamber; 305. Dust suction head; 306. Connecting pipe;

[0024] 4. Fixing assembly; 401. Double-ended threaded rod; 402. Threaded cap; 403. Connecting rod; 404. Fixing plate; 405. Slider; 406. First sprocket; 407. Second sprocket;

[0025] 5. Lower blade; 6. Upper blade. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0027] Please see Figures 1-4 The present invention proposes the following implementation scheme: a shearing machine for processing transformer fan duct plates, including a processing table 1 and a support frame 2 set above the processing table 1, and a protective plate 3 installed below the support frame 2. An upper blade 6 is installed on the lower surface of the protective plate 3, and a lower blade 5 is installed on the upper surface of the processing table 1. The position of the upper blade 6 corresponds to that of the lower blade 5. The processing table 1 is also provided with a fixing component 4 for clamping and fixing the plate. An electric push rod 201 and a support rod 202 are fixed on the lower surface of the support frame 2. The output end of the electric push rod 201 and the lower end of the support rod 202 are both fixed on the upper surface of the protective plate 3. There are two support rods 202, which are symmetrically arranged on both sides of the electric push rod 201.

[0028] Please refer to this carefully. Figure 1 , Figure 3 and Figure 4 The lower surface of the protective plate 3 has a telescopic groove 301, and a telescopic rod 302 is fixed to the inner wall of the telescopic groove 301. A pressure plate 303 is fixed to the lower end of the telescopic rod 302. The pressure plate 303 is used to shield the splashed plate. The moving distance of the pressure plate 303 in the telescopic groove 301 is greater than the shearing depth of the upper blade 6. The pressure plate 303 is L-shaped and is symmetrically arranged on both sides of the upper blade 6. A negative pressure air chamber 304 is opened inside the protective plate 3. Multiple dust suction heads 305 are also installed on the lower surface of the protective plate 3. The dust suction heads 305 are connected to the negative pressure air chamber 304. A connecting pipe 306 is installed on the surface of the protective plate 3. 4. It is connected to an external dust collection device through the connecting pipe 306; the shearing machine for processing plate material of transformer fan air duct can block the flying fragments generated by shearing through the protective plate 3, which can significantly reduce the risk of injury to the operator. In addition, the pressure plate 303 set below the protective plate 3 can apply downward pressure to the plate material to be sheared, further preventing it from shifting during the shearing process and ensuring shearing accuracy. At the same time, the negative pressure air chamber 304 opened inside the protective plate 3, as well as the dust collection head 305 and connecting pipe 306 connected to the negative pressure air chamber 304, can clean up the debris generated during the shearing process and reduce the wear of the tool caused by the debris.

[0029] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3The fixed assembly 4 includes a bidirectional threaded rod 401. A transmission chamber 101 is provided inside the processing table 1. One end of the bidirectional threaded rod 401 is rotatably connected to the inner wall of the transmission chamber 101, and the other end of the bidirectional threaded rod 401 passes through the transmission chamber 101. A threaded cap 402 is threaded onto the surface of the bidirectional threaded rod 401. A connecting rod 403 is fixed to the surface of the threaded cap 402. A fixing plate 404 is fixed to the upper end of the connecting rod 403. There are two fixing plates 404, two connecting rods 403, and two threaded caps 402, symmetrically arranged on the surface of the bidirectional threaded rod 401. A first sprocket 406 is fixedly connected to one end of the bidirectional threaded rod 401. There are two bidirectional threaded rods 401, and a second sprocket 407 is fixedly connected to one end of the other bidirectional threaded rod 401. The first sprocket 406 and the second sprocket 407 are connected via a toothed chain drive. One end of any one of the bidirectional threaded rods 401 is connected to the output of an external driving device. The ends are connected; the upper surface of the processing table 1 is provided with a movable groove 102, which is connected to the transmission chamber 101. The connecting rod 403 passes through the movable groove 102. The lower surface of the fixed plate 404 is fixed with a slider 405. The upper surface of the processing table 1 is provided with a sliding groove 103 corresponding to the slider 405. The slider 405 moves inside the sliding groove 103. There are two sliders 405 and two sliding grooves 103, which are symmetrically arranged below the fixed plate 404. The shearing machine for processing transformer fan duct plates uses the fixing component 4 to fix the plate. This not only ensures that the plate remains stable during the shearing process and avoids uneven cuts caused by movement, thereby improving the shearing accuracy, but also prevents the plate from accidentally sliding during the shearing process, reducing the risk of injury to the operator. Furthermore, by adjusting the position of the fixed plate 404, plates of different sizes can be fixed, improving the practicality of the device.

[0030] In use, the device is first placed in a designated location and connected to an external control device and a 220V mains power supply. The control device can be a computer or other conventional known control device. Then, the operator places the sheet material on the upper surface of the processing table 1, aligning the cutting position of the sheet material with the positions of the upper blade 6 and the lower blade 5. Subsequently, the operator controls the external drive device through the control device to rotate the bidirectional threaded rod 401. The bidirectional threaded rod 401 drives the threaded cap 402 to move, and the threaded cap 402 drives the connecting rod 403 to move, thereby moving the fixing plate 404 fixed on the upper end of the connecting rod 403 to clamp and fix the sheet material. At the same time, the rotation of the bidirectional threaded rod 401 drives the first sprocket 406 to rotate. The first sprocket 406 drives the second sprocket 407 to rotate synchronously through a chain, thereby driving another set of fixing plates 404 to fix the sheet material.

[0031] Then, the staff controls the electric push rod 201 to operate through the control equipment. The electric push rod 201 pushes the protective plate 3 downward. When the pressure plate 303 contacts the plate, the pressure plate 303 can apply a downward force to the plate under the action of the telescopic rod 302 and the spring, so that the plate remains stable during the shearing process. Then, during the shearing of the plate by the lower blade 5 and the upper blade 6, the flying debris can be blocked by the pressure plate 303 and the protective plate 3 and fall on the upper surface of the "L"-shaped pressure plate 303. Then, the staff controls the external fan through the control equipment to draw the debris into the negative pressure air chamber 304 through the dust suction head 305 through the connecting pipe 306, and suck the debris out of the negative pressure air chamber 304 through the connecting pipe 306, thus completing the debris cleaning.

[0032] 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 illustrative of 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shearing machine for processing transformer fan duct plates, comprising a processing table (1) and a support frame (2) disposed above the processing table (1), characterized in that: It also includes a protective plate (3) installed below the support frame (2), an upper blade (6) is installed on the lower surface of the protective plate (3), a lower blade (5) is installed on the upper surface of the processing table (1), the position of the upper blade (6) corresponds to the lower blade (5), and a fixing component (4) for clamping and fixing the plate is also provided inside the processing table (1). The lower surface of the protective plate (3) is provided with a telescopic groove (301), and a telescopic rod (302) is fixed on the inner wall of the telescopic groove (301). A pressure plate (303) is fixed at the lower end of the telescopic rod (302). The pressure plate (303) is used to shield the sputtered plate. The moving distance of the pressure plate (303) in the telescopic groove (301) is greater than the shearing depth of the upper blade (6).

2. The shearing machine for processing transformer fan air duct plates according to claim 1, characterized in that: The pressure plate (303) is L-shaped and is symmetrically arranged on both sides of the upper blade (6). The protective plate (3) has a negative pressure air chamber (304) inside. Multiple vacuum heads (305) are also installed on the lower surface of the protective plate (3). The vacuum heads (305) are connected to the negative pressure air chamber (304). A connecting pipe (306) is installed on the surface of the protective plate (3). The negative pressure air chamber (304) is connected to the external vacuuming equipment through the connecting pipe (306).

3. The shearing machine for processing transformer fan air duct plates according to claim 1, characterized in that: The lower surface of the support frame (2) is fixed with an electric actuator (201) and a support rod (202). The output end of the electric actuator (201) and the lower end of the support rod (202) are both fixed on the upper surface of the protective plate (3). There are two support rods (202), which are symmetrically arranged on both sides of the electric actuator (201).

4. A shearing machine for processing transformer fan duct plates according to claim 1, characterized in that: The fixing component (4) includes a bidirectional threaded rod (401). The processing table (1) has a transmission chamber (101) inside. One end of the bidirectional threaded rod (401) is rotatably connected to the inner wall of the transmission chamber (101), and the other end of the bidirectional threaded rod (401) passes through the transmission chamber (101). A threaded cap (402) is threadedly connected to the surface of the bidirectional threaded rod (401). A connecting rod (403) is fixed to the surface of the threaded cap (402). A fixing plate (404) is fixed to the upper end of the connecting rod (403). There are two fixing plates (404), two connecting rods (403), and two threaded caps (402), which are symmetrically arranged on the surface of the bidirectional threaded rod (401).

5. A shearing machine for processing transformer fan duct plates according to claim 4, characterized in that: One end of the bidirectional threaded rod (401) is fixedly connected to a first sprocket (406). There are two bidirectional threaded rods (401), and one end of the other bidirectional threaded rod (401) is fixedly connected to a second sprocket (407). The first sprocket (406) and the second sprocket (407) are connected by a toothed chain drive, and one end of any one of the bidirectional threaded rods (401) is connected to the output end of an external driving device.

6. A shearing machine for processing transformer fan duct plates according to claim 5, characterized in that: The upper surface of the processing table (1) is provided with a movable groove (102), which is connected to the transmission chamber (101). The connecting rod (403) passes through the movable groove (102). A slider (405) is fixed on the lower surface of the fixed plate (404). The upper surface of the processing table (1) is provided with a sliding groove (103) corresponding to the slider (405). The slider (405) moves inside the sliding groove (103). There are two sliders (405) and two sliding grooves (103), which are symmetrically arranged below the fixed plate (404).

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