Transformer shell forming machine

Abstract

The utility model discloses a transformer shell forming machine which comprises a base, a stamping arm is arranged on the rear side of the upper end of the base, a stamping seat is arranged in the middle of the upper end of the base, the transformer shell forming machine further comprises a discharging mechanism, the discharging mechanism comprises a connecting shaft, a cam, a jacking column, a spring, convex teeth and a discharging assembly, and the connecting shaft is rotationally connected to the middle of the interior of the stamping seat; the cams are arranged on the front side and the rear side of the connecting shaft correspondingly, the jacking columns are slidably connected to the middles of the front side and the rear side in the stamping base correspondingly, springs are arranged between the top wall of the stamping base and the lower ends of the jacking columns correspondingly, the convex teeth are evenly arranged on the outer surfaces of the cams, and protrusions are arranged at the lower ends of the jacking columns. The transformer shell can be rapidly separated from the lower die through continuous contact of the convex teeth and the protrusions, when the transformer shell is jacked up, the electric push rod is synchronously in place, the transformer shell can be rapidly pushed out, and deformation of the transformer shell is avoided while the discharging speed of the transformer shell is increased.

Description

Technical Field

[0001] This utility model relates to the field of transformer shell production technology, specifically a transformer shell forming machine. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are windings and an iron core. Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformers). To make transformers more robust, the transformer casing is often manufactured using a stamping process, requiring a transformer casing forming machine. Existing transformer casing forming machines mostly consist of a stamping device and an ejection device. The stamping device consists of a hydraulic cylinder and a die, while the ejection device usually consists of a push rod. During stamping, the sheet metal is placed on the lower die, and the extension and retraction end of the hydraulic cylinder moves the upper die downwards, ejecting the sheet metal... The traditional transformer casing forming machine uses a stamping process to form the transformer casing. A push rod then pushes the stamped casing out, and the operator removes it for the next process. However, after stamping, the casing often gets stuck in the lower mold. Directly pushing the casing out with the push rod can deform the part of the push rod that contacts the casing, hindering subsequent installation. Operators still need to manually move the casing to the next process. Manual operation is slow, labor-intensive, and prone to accidents due to hydraulic failure. Therefore, we propose a new transformer casing forming machine. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a transformer shell forming machine with a feeding mechanism. The feeding mechanism can quickly separate the transformer shell from the lower mold through the continuous contact between the teeth and the protrusions. When the transformer shell is lifted, the electric push rod is also in place at the same time, which can quickly push the transformer shell out. This improves the feeding speed of the transformer shell and avoids deformation of the transformer shell, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a transformer shell forming machine, including a base, a stamping arm provided on the upper rear side of the base, a stamping seat provided in the middle of the upper end of the base, a lower mold provided on the upper end of the stamping seat, and a liftable upper mold provided on the lower end of the stamping arm, and also including a feeding mechanism.

[0005] The feeding mechanism includes a connecting shaft, cams, top columns, springs, convex teeth, and a feeding assembly. The connecting shaft is rotatably connected to the middle of the inside of the stamping seat. Cams are respectively set on the front and rear sides of the connecting shaft. Top columns are slidably connected to the middle of the front and rear sides inside the stamping seat. Springs are provided between the top wall of the stamping seat and the lower end of the top column. The springs are all sleeved on the outer surface of the top column. Convex teeth are evenly arranged on the outer surface of the cams. The lower end of the top column has a protrusion. The convex teeth are all installed in conjunction with the vertically adjacent protrusions, providing a basis for the rapid separation of the transformer shell from the lower mold. The feeding assembly is set inside the stamping seat and is equipped with a feeding mechanism. The transformer shell can be quickly separated from the lower mold through the continuous contact between the convex teeth and the protrusions. When the transformer shell is lifted, the electric push rod is also in place simultaneously, which can quickly push the transformer shell out, improving the feeding speed of the transformer shell while avoiding deformation of the transformer shell.

[0006] Furthermore, the feeding assembly includes a rotating shaft and an electric push rod. The rotating shaft is rotatably connected to the middle of the right side inside the stamping seat, and the electric push rod is located at the upper end of the rotating shaft. The input end of the electric push rod is electrically connected to the output end of the microcontroller, providing a basis for the rapid ejection of the transformer housing.

[0007] Furthermore, the feeding assembly also includes a worm, a worm wheel, and a reduction gearbox. The worm is rotatably connected to the middle of the upper part of the stamping seat. The worm wheel is located in the middle of the outer surface of the rotating shaft and meshes with the right side of the worm. The reduction gearbox is located on the left side of the bottom wall of the stamping seat. The right end of the output shaft of the reduction gearbox is fixedly connected to the left end of the worm, providing stable transmission for the rapid ejection of the transformer housing.

[0008] Furthermore, the feeding mechanism includes a second worm gear and a top plate. The second worm gear is located in the middle of the outer surface of the connecting shaft. The second worm gear is meshed with the left side of the worm. Sliding columns are slidably connected to the four corners inside the stamping seat. The upper ends of two horizontally adjacent sliding columns are fixedly connected to the lower end of the top plate. The middle of the lower end of the top plate is fixedly connected to the upper end of the vertically adjacent top column, providing a foundation and transmission effect for lifting the transformer shell.

[0009] Furthermore, the feeding mechanism also includes a motor, which is located at the front left side of the bottom wall of the stamping seat. The input end of the motor is electrically connected to the output end of the microcontroller, and the rear end of the output shaft of the motor is fixedly connected to the front end of the reduction shaft of the reduction gearbox, providing a stable drive for the feeding of the transformer shell.

[0010] Furthermore, it also includes hydraulic cylinders, all of which are located in the middle of the upper part of the stamping arm. The lower ends of the extension and retraction ends of the hydraulic cylinders are fixedly connected to the upper end of the upper mold, providing a stable drive for stamping the transformer shell.

[0011] Furthermore, it also includes protective covers, which are respectively disposed in the middle of the front and rear sides of the stamping seat to provide protection for the ejection operation.

[0012] Furthermore, it also includes a microcontroller, which is located on the upper right side of the stamping arm. The input terminal of the microcontroller is electrically connected to an external power supply to provide control for the unloading of the transformer housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This transformer shell forming machine has the following advantages:

[0014] 1. By continuously squeezing the protrusions with the convex teeth, the top column and top plate move up and down in small amplitudes, thereby continuously impacting the transformer shell in small amplitudes, causing the transformer shell to separate from the lower mold, thus achieving rapid separation of the transformer shell from the lower mold and avoiding the deformation of the transformer shell caused by direct ejection.

[0015] 2. The electric push rod is driven to deflect by the meshing of the worm gear and the worm. When the transformer shell is pushed out, the electric push rod deflects synchronously into place. It also has a mechanical self-locking effect, which can quickly push out the transformer shell, avoid manual material feeding, and improve the material feeding speed of the transformer shell. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cam structure of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the feeding mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the feeding mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the convex tooth structure of this utility model.

[0021] In the diagram: 1. Base, 2. Stamping arm, 3. Stamping seat, 4. Unloading mechanism, 41. Connecting shaft, 42. Cam, 43. Top column, 44. Spring, 45. Raised tooth, 46. Unloading assembly, 461. Rotating shaft, 462. Electric push rod, 463. Worm gear, 464. Worm wheel one, 465. Gearbox, 47. Worm wheel two, 48. Top plate, 49. Motor, 5. Lower mold, 6. Upper mold, 7. Hydraulic cylinder, 8. Protective cover, 9. Microcontroller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This embodiment provides a technical solution: a transformer shell forming machine, including a base 1, a stamping arm 2 on the upper rear side of the base 1, a stamping seat 3 in the middle of the upper end of the base 1, a lower mold 5 on the upper end of the stamping seat 3, and a liftable upper mold 6 at the lower end of the stamping arm 2. It also includes hydraulic cylinders 7, all located in the middle of the upper part of the stamping arm 2. Each hydraulic cylinder 7 is connected to an external hydraulic pump station via oil pipes. The lower ends of the telescopic ends of each hydraulic cylinder 7 are fixedly connected to the upper end of the upper mold 6, providing stable drive for stamping the transformer shell. It also includes a microcontroller 9, located on the upper right side of the stamping arm 2. The input end of the microcontroller 9 is electrically connected to an external power source, providing control for the unloading of the transformer shell. Finally, it includes an unloading mechanism 4.

[0024] The feeding mechanism 4 includes a connecting shaft 41, a cam 42, a top column 43, a spring 44, a tooth 45, and a feeding assembly 46. The connecting shaft 41 is rotatably connected to the middle of the interior of the stamping base 3. The cam 42 is respectively located on the front and rear sides of the connecting shaft 41. The top column 43 is slidably connected to the middle of the front and rear sides of the interior of the stamping base 3. A spring 44 is provided between the top wall of the stamping base 3 and the lower end of the top column 43. The spring 44 is sleeved on the outer surface of the top column 43. The tooth 45 is evenly distributed on the outer surface of the cam 42. The lower end of the top column 43 has a protrusion. The tooth 45 is installed in conjunction with the vertically adjacent protrusion, providing a basis for the rapid separation of the transformer shell from the lower mold 5. The feeding assembly 46 is located on the... Inside the stamping base 3, the unloading assembly 46 includes a rotating shaft 461 and an electric push rod 462. The rotating shaft 461 is rotatably connected to the middle of the right side inside the stamping base 3. The electric push rod 462 is located at the upper end of the rotating shaft 461. The input end of the electric push rod 462 is electrically connected to the output end of the microcontroller 9, providing a basis for the rapid ejection of the transformer housing. The unloading assembly 46 also includes a worm gear 463, a worm wheel 464, and a reduction gearbox 465. The worm gear 463 is rotatably connected to the middle of the upper end inside the stamping base 3. The worm wheel 464 is located in the middle of the outer surface of the rotating shaft 461 and meshes with the right side of the worm gear 463. The reduction gearbox 465 is located on the left side of the bottom wall of the stamping base 3. The input of the reduction gearbox 465 is... The right end of the output shaft is fixedly connected to the left end of the worm gear 463, providing stable transmission for the rapid ejection of the transformer casing. The unloading mechanism 4 includes a second worm gear 47 and a top plate 48. The second worm gear 47 is located in the middle of the outer surface of the connecting shaft 41 and meshes with the left side of the worm gear 463. Sliding columns are slidably connected to the four corners inside the stamping base 3. The upper ends of two horizontally adjacent sliding columns are fixedly connected to the lower ends of the top plate 48. The middle of the lower end of the top plate 48 is fixedly connected to the upper ends of the vertically adjacent top columns 43, providing a foundation and transmission effect for lifting the transformer casing. The unloading mechanism 4 also includes a motor 49, which is located at the front left side of the bottom wall of the stamping base 3. The input end of the motor 49 is electrically connected to the microcontroller 9. The output end of the motor 49 is fixedly connected to the front end of the reduction shaft of the gearbox 465, providing a stable drive for the unloading of the transformer shell. It also includes a protective cover 8, which is respectively set in the middle of the front and rear sides of the stamping seat 3. The protective cover 8 can prevent contaminants from adhering to the surface of the cam 42, improve the service life of the cam 42, and provide protection for the ejection operation. It is equipped with an unloading mechanism 4, which can quickly separate the transformer shell from the lower mold 5 through the continuous contact between the convex teeth 45 and the protrusion. When the transformer shell is lifted, the electric push rod 462 is also in place at the same time, which can quickly push out the transformer shell, improve the unloading speed of the transformer shell and prevent the transformer shell from deforming.

[0025] The working principle of the transformer shell forming machine provided by this utility model is as follows: When using the transformer shell forming machine, the external feeding device conveys the sheet metal to the upper mold 5. The external hydraulic pump station works, and the telescopic end of the hydraulic cylinder 7 moves downward. The upper mold 6 also moves downward synchronously until the upper mold 6 contacts the sheet metal and forms a stamping effect on the sheet metal. Then, the telescopic end of the hydraulic cylinder 7 moves upward, driving the upper mold 6 to move upward synchronously. At this time, the sheet metal is stamped into a transformer shell, but it is stuck inside the lower mold 5. It is necessary to push the transformer shell out. Microcontroller 9 controls motor 49 to operate. Motor 49, through reduction gearbox 465, increases torque and drives worm gear 463 to rotate. As worm gear 463 rotates, worm wheel 47 also rotates, driving connecting shaft 41 to rotate. Cam 42 deflects downwards. As cam 42 rotates, cam tooth 45 continuously presses against the protrusion. When the tip of cam tooth 45 contacts the lower end of the protrusion, the protrusion moves upwards, and top column 43 and top plate 48 also move upwards simultaneously. Spring 44 is compressed. When cam tooth 45 passes the protrusion, the lower end of the protrusion is no longer under force, and the protrusion and top plate... As the column 43 and top plate 48 move downwards, the spring 44 expands without force. This process repeats, causing the column 43 and top plate 48 to move up and down in small amplitudes. During this process, the transformer casing, which is stuck in the lower mold 5, is continuously impacted by the top plate 48 in small amplitudes, gradually separating from the lower mold 5. Because the movement amplitude of the top plate 48 is small and within the stress range of the transformer casing, the transformer casing will not bend or deform. When the cam 42 rotates to the point where the protruding part of the cam 42 faces upwards, the cam 42 presses against the column 43, and the column 43 and top plate 48... Simultaneously, as the spring 44 is compressed, the transformer casing, which has already separated from the lower mold 5, is quickly ejected. At the same time, as the worm gear 463 rotates, the worm wheel 464 also rotates, driving the shaft 461 to rotate. The electric push rod 462 also rotates. After the transformer casing is lifted, the electric push rod 462 also deflects 90 degrees to the left and rotates to its position. The microcontroller 9 controls the electric push rod 462 to work. The telescopic end of the electric push rod 462 extends to the left, pushing the transformer casing onto the external discharge device, completing the unloading process.

[0026] It is worth noting that the microcontroller 9 disclosed in the above embodiments is an S7-200 microcontroller, the electric actuator 462 is an NC5820 electric actuator, and the motor 49 is a DYG motor. The microcontroller 9 controls the operation of the electric actuator 462 and the motor 49 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A transformer casing forming machine, comprising a base (1), wherein a stamping arm (2) is provided on the rear side of the upper end of the base (1), a stamping seat (3) is provided in the middle of the upper end of the base (1), a lower mold (5) is provided on the upper end of the stamping seat (3), and a liftable upper mold (6) is provided on the lower end of the stamping arm (2), characterized in that: It also includes the feeding mechanism (4); The feeding mechanism (4) includes a connecting shaft (41), a cam (42), a top column (43), a spring (44), a tooth (45), and a feeding assembly (46). The connecting shaft (41) is rotatably connected to the middle of the inside of the stamping seat (3). The cam (42) is respectively set on the front and rear sides of the connecting shaft (41). The top column (43) is respectively slidably connected to the middle of the front and rear sides inside the stamping seat (3). A spring (44) is provided between the top wall of the stamping seat (3) and the lower end of the top column (43). The spring (44) is sleeved on the outer surface of the top column (43). The tooth (45) is evenly set on the outer surface of the cam (42). The lower end of the top column (43) is provided with a protrusion. The tooth (45) is installed in conjunction with the vertically adjacent protrusion. The feeding assembly (46) is set inside the stamping seat (3).

2. The transformer shell forming machine according to claim 1, characterized in that: It also includes a microcontroller (9), which is located on the upper right side of the stamping arm (2), and the input terminal of the microcontroller (9) is electrically connected to an external power supply.

3. A transformer casing forming machine according to claim 2, characterized in that: The feeding assembly (46) includes a rotating shaft (461) and an electric push rod (462). The rotating shaft (461) is rotatably connected to the middle of the right side inside the stamping seat (3). The electric push rod (462) is located at the upper end of the rotating shaft (461). The input end of the electric push rod (462) is electrically connected to the output end of the microcontroller (9).

4. A transformer casing forming machine according to claim 3, characterized in that: The feeding assembly (46) also includes a worm (463), a worm wheel (464), and a gearbox (465). The worm (463) is rotatably connected to the middle of the upper part of the stamping seat (3). The worm wheel (464) is located in the middle of the outer surface of the rotating shaft (461). The worm wheel (464) is meshed with the right side of the worm (463). The gearbox (465) is located on the left side of the bottom wall of the stamping seat (3). The right end of the output shaft of the gearbox (465) is fixedly connected to the left end of the worm (463).

5. A transformer casing forming machine according to claim 4, characterized in that: The feeding mechanism (4) includes a second worm gear (47) and a top plate (48). The second worm gear (47) is located in the middle of the outer surface of the connecting shaft (41). The second worm gear (47) is meshed with the left side of the worm (463). The four corners of the stamping seat (3) are slidably connected with sliding columns. The upper ends of two horizontally adjacent sliding columns are fixedly connected to the lower end of the top plate (48). The middle of the lower end of the top plate (48) is fixedly connected to the upper end of the vertically adjacent top column (43).

6. A transformer casing forming machine according to claim 5, characterized in that: The feeding mechanism (4) also includes a motor (49), which is located on the left front end of the bottom wall of the stamping seat (3). The input end of the motor (49) is electrically connected to the output end of the microcontroller (9), and the rear end of the output shaft of the motor (49) is fixedly connected to the front end of the reduction shaft of the gearbox (465).

7. A transformer casing forming machine according to claim 1, characterized in that: It also includes hydraulic cylinders (7), which are all located in the middle of the upper part of the stamping arm (2), and the lower end of the telescopic end of the hydraulic cylinders (7) is fixedly connected to the upper end of the upper mold (6).

8. A transformer casing forming machine according to claim 1, characterized in that: It also includes protective covers (8), which are respectively disposed in the middle of the front and rear sides of the stamping seat (3).

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