Oil-immersed transformer iron core machining stamping device

Abstract

The invention relates to the technical field of transformer machining, in particular to an oil-immersed transformer iron core machining stamping device which comprises a main body unit, a support, a stacking column fixedly connected with the inner wall of the support, a stamping mechanism arranged on the support and a driving unit. Comprising a push-pull mechanism arranged on the stamping mechanism and used for driving the stamping mechanism to move up and down, and the discharging unit comprises a discharging mechanism arranged on the support. The stamping mechanism and the discharging mechanism are synchronously driven by the driving mechanism, so that after the upper die base completes stamping, the discharging mechanism can be precisely connected for iron core taking, iron core transferring and stacking are achieved through the discharging unit composed of a pure mechanical structure, equipment such as a high-cost mechanical arm does not need to be introduced, the use cost is lower, and when the iron cores are transferred and discharged, the production efficiency is improved. And other equipment parts such as a limiting buffer rod bypassing the stamping mechanism avoid collision and interference between structural equipment, and the flexibility and the space adaptability of the device can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer processing, in particular to a stamping device for oil-immersed transformer core processing. BACKGROUND

[0002] In the power transmission and distribution system, the oil-immersed transformer as the core power equipment, with its excellent insulation performance, heat dissipation efficiency and overload capacity, is widely used in power stations, substations, industrial plants and other scenes, and plays a key role in voltage transformation, power transmission and distribution. As the magnetic circuit core of the oil-immersed transformer, the silicon steel sheet blank is processed into a specific shape of the core single body by the stamping device, and then the core single body after stamping is stacked and combined during the assembly of the transformer, so as to form a complete core magnetic circuit. The core single body after stamping is usually directly stacked beside the stamping station. If it is not timely arranged in order, additional manpower or time is needed to sort, align and stack the scattered cores, which increases the process cost. In the subsequent assembly stage of the transformer, the core still needs to be stacked and combined again, and the repeated arrangement and stacking operation seriously slows down the overall production rhythm and reduces the assembly and processing efficiency of the transformer. Some enterprises introduce mechanical arms, mechanical hands and other automatic equipment to realize the unloading and stacking of the core, but such equipment not only has high initial purchase cost, but also needs to be equipped with professional personnel for programming debugging and daily maintenance, which requires high funds and technical reserves of the production enterprise. At the same time, the motion trajectory planning of the mechanical arm needs to be adapted to the layout of the stamping station. Especially in small and medium-sized transformer production workshops, the motion range of the mechanical arm is easily limited due to limited space, which may lead to insufficient flexibility of unloading and stacking, and it is difficult to adapt to the processing needs of cores of different specifications. In view of this, we propose a stamping device for oil-immersed transformer core processing. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the present application provides a stamping device for oil-immersed transformer core processing, which can effectively solve the problems of repeated stacking, low efficiency and high cost caused by the scattered stacking of core single bodies after stamping in the prior art, and the problems of high purchase and maintenance cost of mechanical arms, high technical and financial requirements for enterprises, and insufficient flexibility due to space limitations in small and medium-sized workshops.

[0004] To achieve the above purpose, the present application is realized by the following technical scheme: The present application provides a stamping device for oil-immersed transformer core processing, which comprises a main unit, a stacking column fixedly connected to the inner wall of the support, and a stamping mechanism arranged on the support. The driving unit comprises a push-pull mechanism arranged on the stamping mechanism and used for driving the stamping mechanism to move up and down, and a driving mechanism arranged on the push-pull mechanism and used for driving the push-pull mechanism to move. The blanking unit comprises a blanking mechanism arranged on the support and used for transferring the iron core after stamping to the stacking column, and a transmission mechanism arranged on the driving mechanism and used for driving the blanking mechanism to repeatedly complete the blanking action.

[0005] Further, the stamping mechanism comprises a lower die seat fixedly connected to the inner wall of the support, and an upper die seat arranged above the lower die seat.

[0006] Further, the push-pull mechanism comprises a connecting rod I rotatably connected to the top of the upper die seat, a crank rotatably connected to the end of the connecting rod I away from the upper die seat, and a connecting shaft fixedly connected to the end of the crank away from the connecting rod I.

[0007] Further, the driving mechanism comprises a motor fixedly connected to the top of the support, a fixed shaft fixedly connected to the motor through an output shaft, a synchronous gear assembly arranged on the bottom of the fixed shaft, and a conical gear assembly arranged on the surface of the fixed shaft and in transmission connection with the connecting shaft.

[0008] Further, the transmission mechanism comprises a limiting disc rotatably connected to the inner wall of the support, and the limiting disc is in transmission connection with the fixed shaft through the synchronous gear assembly.

[0009] Further, the limiting disc is rotatably connected with a connecting rod II, and the connecting rod II is rotatably connected with a sliding block I at the end away from the limiting disc.

[0010] Further, the inner wall of the sliding block I is slidably connected with a guide rail I, and the guide rail I is fixedly connected to the inner wall of the support.

[0011] Further, the inner wall of the guide rail I is slidably connected with a rack, the top of the rack is fixedly connected to the bottom of the sliding block I, and a fixed gear is meshingly connected to the side of the rack away from the guide rail I.

[0012] Further, the blanking mechanism comprises a connecting rod III fixedly connected to the bottom of the fixed gear, a sleeve rod rotatably connected to the end of the connecting rod III away from the fixed gear, a sliding block II slidably connected to the surface of the sleeve rod, a guide rail II slidably connected to the surface of the sliding block II, and the top of the guide rail II is fixedly connected to the inner wall of the support.

[0013] Further, the end of the sleeve rod away from the connecting rod III is fixedly connected with a Y-shaped rod, and the bottom of the Y-shaped rod is fixedly connected with two groups of electromagnetic blocks.

[0014] The technical scheme provided by the application has the following beneficial effects compared with the known prior art: The application synchronously drives the stamping mechanism and the blanking mechanism through the driving mechanism, utilizes the transmission ratio design of the synchronous gear assembly and the bevel gear assembly, ensures the rotation speed of the crank and the limiting disc to be consistent, makes the blanking mechanism can accurately connect to take the core after the upper die seat completes stamping, avoids the problem of core retention in the die seat or equipment interference, can effectively improve the continuity, safety and processing efficiency of the core processing, and the blanking unit composed of pure mechanical structure realizes the transfer and stacking of the core, without introducing high-cost mechanical arms and other equipment, the use cost is lower, and the structure is simple and easy to maintain, which can reduce the capital and technical burden of the production enterprise; By cooperation of the Y-shaped rod of the blanking mechanism and the electromagnetic block, the core can be accurately transferred to the stacking column and sequentially sleeved, the artificial stacking time is reduced, the overall production cycle is further shortened, the processing efficiency of the core and the transformer is improved, and the sleeve rod of the blanking mechanism can move along the U-shaped track through the limiting action of the sliding block two and the guide rail two, so that the limiting buffer rod and other equipment components of the stamping mechanism can be bypassed during the transfer and blanking of the core, the knocking interference between the structures and equipment is avoided, and the flexibility and space adaptability of the device can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a first perspective view of the structure of the present application. Figure 2 It is a sectional view of the bracket of the present application. Figure 3 It is a structure schematic view of the main unit and the driving unit of the present application. Figure 4 It is a structure schematic view of the driving mechanism and the push-pull mechanism of the present application. Figure 5 It is a structure schematic view of the blanking unit of the present application. Figure 6 It is a structure schematic view of the transmission mechanism and the blanking mechanism of the present application. Figure 7 It is a sectional view of the guide rail two of the present application. Figure 8 It is a structure schematic view of the present application Figure 7 The enlarged schematic view of the structure at A.

[0017] The labels in the figure respectively represent: 100, main unit; 101, support; 102, stacking column; 103, punching mechanism; 1031, lower die seat; 1032, upper die seat; 1033, limiting buffer rod; 200, driving unit; 201, driving mechanism; 2011, motor; 2012, fixed shaft; 2013, synchronous gear assembly; 2014, bevel gear assembly; 202, push-pull mechanism; 2021, connecting shaft; 2022, crank; 2023, connecting rod one; 300, blanking unit; 301, transmission mechanism; 3011, limiting disc; 3012, fixed gear; 3013, rack; 3014, connecting rod two; 3015, sliding block one; 3016, guide rail one; 302, blanking mechanism; 3021, connecting rod three; 3022, sleeve rod; 3023, guide rail two; 3024, Y-shaped rod; 3025, sliding block two; 3026, electromagnetic block. DETAILED DESCRIPTION

[0018] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0019] The present application will be further described below with reference to the embodiments.

[0020] As Figures 1 to 8 shown, an oil-immersed transformer core processing punching device, comprising a main unit 100, comprising a support 101, a stacking column 102 fixedly connected to the inner wall of the support 101, and a punching mechanism 103 arranged on the support 101, the punching mechanism 103, comprising a lower die seat 1031 fixedly connected to the inner wall of the support 101, an upper die seat 1032 correspondingly arranged above the lower die seat 1031, a limiting buffer rod 1033 slidingly connected to the inner wall of the upper die seat 1032, both ends of the limiting buffer rod 1033 being fixedly connected to the inner wall of the support 101; the limiting buffer rod 1033 is composed of a limiting rod and a buffer spring, for buffering the upper die seat 1032 during the up-down movement of the upper die seat 1032 for punching action, preventing excessive wear and knock between the upper die seat 1032 and the lower die seat 1031 during the punching process, etc. It should be noted that the blank of the iron core is conveyed to the lower die seat 1031 by the external traction and driving device, and then the blank is stamped by driving the upper die seat 1032 to move up and down quickly, so as to complete the stamping process of the iron core, and the stability of the upper die seat 1032 during the stamping process can be ensured by the limiting buffer rod 1033, and the iron core after stamping can be stacked on the stacking column 102 in sequence, which is convenient for workers to take and stack the iron core for subsequent transformer processing; Further, the driving unit 200 includes a push-pull mechanism 202 arranged on the stamping mechanism 103 for driving the stamping mechanism 103 to move up and down, and a driving mechanism 201 arranged on the push-pull mechanism 202 for driving the push-pull mechanism 202 to move, the push-pull mechanism 202 includes a connecting rod one 2023 rotatably connected to the top of the upper die seat 1032, one end of the connecting rod one 2023 away from the upper die seat 1032 is rotatably connected with a crank 2022, and one end of the crank 2022 away from the connecting rod one 2023 is fixedly connected with a connecting shaft 2021; the driving mechanism 201 can be used to drive the push-pull mechanism 202 to drive the upper die seat 1032 to move up and down reciprocally, so as to complete the stamping process of the iron core with the lower die seat 1031; It should be noted that the driving mechanism 201 drives the push-pull mechanism 202, which can drive the crank 2022 to rotate, and since the upper die seat 1032 is limited and guided by the limiting buffer rod 1033, the upper die seat 1032 can be driven to move up and down reciprocally by the connecting rod one 2023 when the crank 2022 rotates, thereby completing the stamping process of the iron core; Specifically, the driving mechanism 201 includes a motor 2011 fixedly connected to the top of the bracket 101, the motor 2011 is fixedly connected with a fixed shaft 2012 through an output shaft, the fixed shaft 2012 is provided with a synchronous gear assembly 2013 at the bottom, and the fixed shaft 2012 is in transmission connection with the connecting shaft 2021 through a bevel gear assembly 2014; the synchronous gear assembly 2013 is composed of two groups of synchronous toothed pulleys and one group of synchronous toothed belts, and the bevel gear assembly 2014 is composed of two groups of meshing connected bevel gears, so as to ensure the stability of transmission operation between the components; It should be noted that the motor 2011 outputs can drive the fixed shaft 2012 to rotate, and the crank 2022 can be synchronously driven to rotate by the bevel gear assembly 2014, so as to drive the upper die seat 1032 to move up and down reciprocally; Further, the blanking unit 300 comprises a blanking mechanism 302 arranged on the support 101, which is used to transfer the iron core after stamping to the stacking column 102, and a transmission mechanism 301 arranged on the driving mechanism 201 and used to drive the blanking mechanism 302 to repeatedly complete the blanking action. The transmission mechanism 301 comprises a limiting disc 3011 rotatably connected to the inner wall of the support 101, the top of the limiting disc 3011 is in transmission connection with the fixed shaft 2012 through a synchronous gear assembly 2013, the bottom of the limiting disc 3011 is rotatably connected with a connecting rod two 3014, the end of the connecting rod two 3014 away from the limiting disc 3011 is rotatably connected with a sliding block one 3015, the inner wall of the sliding block one 3015 is slidably connected with a guide rail one 3016, the bottom of the guide rail one 3016 is fixedly connected to the inner wall of the support 101, the inner wall of the guide rail one 3016 is slidably connected with a rack 3013, the top of the rack 3013 is fixedly connected to the bottom of the sliding block one 3015, and the side of the rack 3013 away from the guide rail one 3016 is in meshing connection with a fixed gear 3012. The transmission mechanism 301 is arranged to drive the blanking mechanism 302 to operate, so as to take out the iron core after stamping from the lower die seat 1031 and then transfer it to the stacking column 102, and orderly stack the iron core on the stacking column 102. It should be noted that the synchronous gear assembly 2013 in transmission connection with the limiting disc 3011 and the fixed shaft 2012 can drive the limiting disc 3011 to rotate when the fixed shaft 2012 rotates, and the transmission ratio between the bevel gear assembly 2014 and the synchronous gear assembly 2013 ensures that the rotating speeds of the crank 2022 and the limiting disc 3011 are consistent, so as to realize the collaborative operation of the iron core blanking and stamping. Since the sliding block one 3015 is limited and guided by the guide rail one 3016, when the limiting disc 3011 rotates, the sliding block one 3015 can be driven by the connecting rod two 3014 to move axially reciprocatingly, and the rack 3013 can be driven by the sliding block one 3015 to move axially reciprocatingly synchronously. The reciprocating movement of the rack 3013 can drive the fixed gear 3012 to repeatedly change the rotation direction. Specifically, the blanking mechanism 302 comprises a connecting rod three 3021 fixedly connected to the bottom of the fixed gear 3012, the end of the connecting rod three 3021 away from the fixed gear 3012 is rotatably connected with a sleeve rod 3022, the surface of the sleeve rod 3022 is slidably connected with a sliding block two 3025, the surface of the sliding block two 3025 is slidably connected with a guide rail two 3023, the top of the guide rail two 3023 is fixedly connected to the inner wall of the support 101, the end of the sleeve rod 3022 away from the connecting rod three 3021 is fixedly connected with a Y-shaped rod 3024, and the bottom of the Y-shaped rod 3024 is fixedly connected with two groups of electromagnetic blocks 3026. The two groups of electromagnetic blocks 3026 are connected with an external power supply and a sensing control system through power supply wires, so as to control the on-off of the electromagnetic blocks 3026. It should be noted that while the fixed gear 3012 repeatedly rotates in both directions, it can drive the connecting rod 3021 to rotate in both directions simultaneously. When the connecting rod 3021 rotates in the forward direction, it can drive the slider 2 3025 to move along the guide rail 2 3023 towards the lower mold base 1031. At this time, the drive mechanism 201 is driving the upper mold base 1032 to move upward, which can avoid collision between the upper mold base 1032 and the unloading mechanism 302. When the slider 2 3025 moves towards the lower mold base 1031, the sleeve rod 3022 is limited by the slider 2 3025 and the guide rail 2 3023 in different directions. This can drive the sleeve rod 3022 and the Y-shaped rod 3024 connected to one end of the sleeve rod 3022 to move in a U-shaped trajectory, bypassing the limiting buffer rod 1033 and other related structural equipment, and placing the two sets of... When the electromagnetic blocks 3026 move above the lower die base 1031, they are quickly energized and attract the stamped iron core. Then, as the drive mechanism 201 and the push-pull mechanism 202 begin to drive the upper die base 1032 to move down to stamp the next set of iron cores, the fixed gear 3012 drives the connecting rod 3021 to rotate in the opposite direction, causing the slider 2025 to move along the guide rail 2023 towards the stacking column 102. Meanwhile, the sleeve rod 3022, the Y-shaped rod 3024, and the connected electromagnetic blocks 3026 are reset along the U-shaped trajectory. When the electromagnetic blocks 3026 move the stamped iron core above the stacking column 102, the electromagnetic blocks 3026 are quickly de-energized and no longer attract the iron core. The iron core falls under its own weight and is accurately stacked on the stacking column 102.

[0021] The working principle of this invention is as follows: Before the device is started, each core structure is in an initial reset state. The upper mold base 1032 is in the highest position above the lower mold base 1031 under the support of the limiting buffer rod 1033. The buffer spring inside the limiting buffer rod 1033 is in a naturally extended state, providing stable support for the upper mold base 1032. The Y-shaped rod 3024 of the feeding mechanism 302 and the two sets of electromagnetic blocks 3026 at the bottom are stopped on the side close to the stacking column 102. The electromagnetic blocks 3026 are in a de-energized and non-adsorption state. The smooth rubber layer at the bottom of the blocks does not contact any parts. The motor 2011, fixed shaft 2012, synchronous gear assembly 2013 and bevel gear assembly 2014 of the drive unit 200 are all in a stationary state, ensuring that there is no risk of structural interference when subsequent actions are started. The smooth rubber layer on the surface of the stacking column 102 completely covers the column without damage or protrusion, providing a guarantee for smooth sliding and scratch prevention when the iron core is stacked. Power transmission and multi-mechanism cooperative driving, when the blank is in place, start the motor 2011 of the driving unit 200, the motor 2011 drives the fixed shaft 2012 to rotate uniformly along its axis through the output shaft, and the fixed shaft 2012 transmits power to the stamping mechanism 103 and the blanking unit 300 through two transmission paths, realizing the synchronous triggering of stamping and blanking actions; The conical gear assembly 2014 mounted on the surface of the fixed shaft 2012 converts the horizontal rotation of the fixed shaft 2012 into the vertical rotation of the connecting shaft 2021, which drives the crank 2022 fixed at its end to rotate synchronously. Since the end of the crank 2022 away from the connecting shaft 2021 is rotationally connected with the connecting rod 2023, and the other end of the connecting rod 2023 is rotationally connected with the top of the upper die holder 1032, when the crank 2022 rotates, its eccentric motion is converted into a vertical push-pull force on the upper die holder 1032 through the connecting rod 2023. At this time, the inner wall of the upper die holder 1032 is in sliding fit with the limiting buffer rod 1033, which forms a rigid constraint on the movement direction of the upper die holder 1032, ensuring that the upper die holder 1032 only moves back and forth in the vertical direction, avoiding mold wear or iron core forming defects caused by lateral deviation during stamping; The synchronous gear assembly 2013 arranged at the bottom of the fixed shaft 2012 transmits power from the fixed shaft 2012 to the limiting disc 3011. The meshing transmission characteristics of the synchronous gear belt can ensure that the rotating speeds of the fixed shaft 2012 and the limiting disc 3011 are completely consistent, and then through the subsequent transmission structure, the rhythm matching of the stamping action and the blanking action is ensured. The limiting disc 3011 rotates synchronously with the synchronous gear assembly 2013, and its bottom edge is rotationally connected with one end of the connecting rod 3014, and the other end of the connecting rod 3014 is rotationally connected with the sliding block 3015. Since the inner wall of the sliding block 3015 is sleeved on the surface of the guide rail 3016, and the bottom of the guide rail 3016 is fixed to the inner wall of the bracket 101, the rotary motion of the limiting disc 3011 is converted into the reciprocating linear motion of the sliding block 3015 along the guide rail 3016 through the connecting rod 3014. The bottom of the sliding block 3015 is fixedly connected with the rack 3013, so the reciprocating movement of the sliding block 3015 drives the rack 3013 to move synchronously along the guide rail 3016. The side of the rack 3013 away from the guide rail 3016 is engaged with the fixed gear 3012, and the linear motion of the rack 3013 is further converted into the forward and reverse alternating rotation of the fixed gear 3012. When the rack 3013 moves towards the lower die holder 1031, the fixed gear 3012 rotates clockwise, and vice versa. When the rack 3013 moves towards the stacking column 102, the fixed gear 3012 rotates counterclockwise, providing a power basis for the subsequent trajectory motion of the blanking mechanism 302; Under the drive of the driving unit 200, the upper die seat 1032 enters the downward stamping stage, when the crank 2022 rotates to the side close to the lower die seat 1031, the connecting rod one 2023 pushes the upper die seat 1032 to move downward along the limiting buffer rod 1033 quickly, the stamping punch on the bottom of the upper die seat 1032 cooperates with the stamping recess on the top of the lower die seat 1031, and the pressure is applied to the silicon steel sheet blank on the lower die seat 1031, so that the blank is plastically deformed along the shape of the mold, and finally formed into an iron core monomer conforming to the specification of the transformer core; When the stamping is completed, the crank 2022 continues to rotate to the side away from the lower die seat 1031, the connecting rod one 2023 pulls the upper die seat 1032 to reset upward along the limiting buffer rod 1033, at this time the buffer spring in the limiting buffer rod 1033 gradually recovers to the natural state, and prepares for the next stamping action, at the same time the upward movement of the upper die seat 1032 also provides space for the subsequent blanking mechanism 302 to enter the area of the lower die seat 1031 to take out the material; When the core on the lower die seat 1031 is formed and the upper die seat 1032 is reset upward, the transmission mechanism 301 of the blanking unit 300 has driven the blanking mechanism 302 to start through the rotation of the fixed gear 3012, when the fixed gear 3012 rotates clockwise, the connecting rod three 3021 fixedly connected at the bottom of the fixed gear 3012 rotates synchronously with the fixed gear 3012, and the end away from the fixed gear 3012 of the connecting rod three 3021 is rotationally connected with the sleeve rod 3022, so that the rotation of the connecting rod three 3021 drives the sleeve rod 3022 to move towards the lower die seat 1031; The sleeve rod 3022 is sleeved with the sliding block two 3025, the sliding block two 3025 is in sliding cooperation with the guide rail two 3023, and the top of the guide rail two 3023 is fixed to the inner wall of the support 101. The guide rail two 3023 is designed to make the sliding block two 3025 drive the sleeve rod 3022 to move in the horizontal and vertical directions during movement, and in the process of moving close to the lower die seat 1031, the sleeve rod 3022 first moves in the horizontal and front and back directions, and finally forms a U-shaped movement track, which can accurately bypass the limiting buffer rod 1033 and other equipment structures of the support 101, to avoid collision between the blanking mechanism 302 and the stamping mechanism 103; When the Y-shaped rod 3024 at the end of the sleeve rod 3022 moves directly above the lower die seat 1031, the two groups of electromagnetic blocks 3026 at the bottom of the Y-shaped rod 3024 are just above the iron core monomer after stamping, at this time the electromagnetic blocks 3026 are powered on through the external sensing control system, the electromagnetic blocks 3026 generate strong magnetic field attraction force, and penetrate the smooth rubber layer at the bottom to act on the iron core monomer, so that the iron core monomer is attracted upward, away from the lower die seat 1031, and fixed at the bottom of the electromagnetic blocks 3026. Because the rubber layer is soft and smooth in texture, it will not scratch the surface of the iron core due to the direct contact between the electromagnetic blocks 3026 and the iron core, and will not significantly weaken the magnetic field attraction force of the electromagnetic blocks 3026, ensuring that the iron core is stable and not damaged during transfer. At the same time, the attraction strength of the electromagnetic blocks 3026 can be adjusted by the external power current, which can adapt to iron core monomers of different thicknesses and weights, avoiding iron core falling due to insufficient attraction or iron core deformation due to excessive attraction; When the electromagnetic blocks 3026 complete the iron core attraction, the fixed gear 3012 starts to rotate counterclockwise under the drive of the rack 3013, the connecting rod three 3021 rotates reversely with the fixed gear 3012, pulls the sleeve rod 3022 and the Y-shaped rod 3024 to reset along the original U-shaped track, and moves towards the stacking column 102. In this process, the sliding block two 3025 switches in the opposite direction along the movement direction of the guide rail two 3023, drives the sleeve rod 3022 to move to the stacking column 102 above along the horizontal and front and back directions, ensuring that the iron core always maintains a safe distance from other structures during transfer; When the Y-shaped rod 3024 moves to the stacking column 102 above, the external sensing control system accurately controls the electromagnetic blocks 3026 to be powered off, and the attraction force of the electromagnetic blocks 3026 disappears. The iron core monomer falls vertically under the action of its own gravity. Since the axis of the stacking column 102 is completely coincided with the falling track of the electromagnetic blocks 3026, and the diameter of the stacking column 102 is slightly smaller than the diameter of the mounting hole at the center of the iron core monomer, the iron core monomer can be accurately sleeved to the surface of the stacking column 102. At the same time, the smooth rubber layer on the surface of the stacking column 102 greatly reduces the frictional resistance between the iron core and the column surface when the iron core falls, avoiding burrs on the edge of the iron core inner hole due to friction. In addition, the elasticity of the rubber layer can buffer the impact force when the iron core falls, preventing rigid collision between the iron core and the already stacked iron core, resulting in edge damage. Finally, the iron core monomer is orderly and damage-free stacked along the stacking column 102, providing convenience for the subsequent whole iron core for transformer assembly; After the punching and stacking of a piece of iron core is completed, the motor 2011 of the driving unit 200 continuously drives the fixed shaft 2012 to rotate, so that the punching mechanism 103 and the blanking unit 300 enter the next action cycle, the external traction device synchronously conveys new silicon steel sheet blank to the lower die seat 1031, the upper die seat 1032 again moves downward to punch the new blank, and the blanking mechanism 302 resets to the upper adsorption of the newly formed iron core on the lower die seat 1031, and then is transferred to the stacking column 102 to complete the stacking. In this way, the continuity and efficiency of the iron core processing can be effectively improved, and after shutdown, the entire set of iron cores on the stacking column 102 can be taken down by manual operation, and subsequent insulation treatment or transformer assembly process can be carried out, which can further improve the convenience of the production process.

[0022] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A stamping device for processing oil-immersed transformer cores, characterized in that, The utility model relates to a core automatic stacking device, including, The body unit (100) includes a support (101), a stacking column (102) fixedly connected to the inner wall of the support (101), and a stamping mechanism (103) arranged on the support (101); The driving unit (200) includes a push-pull mechanism (202) arranged on the stamping mechanism (103) for driving the stamping mechanism (103) to move up and down, and a driving mechanism (201) arranged on the push-pull mechanism (202) for driving the push-pull mechanism (202) to move; The blanking unit (300) includes a blanking mechanism (302) arranged on the support (101), which can be used to transfer the iron core after stamping to the stacking column (102), and a transmission mechanism (301) arranged on the driving mechanism (201) for driving the blanking mechanism (302) to repeatedly complete the blanking action.

2. The oil-immersed transformer core processing and punching device according to claim 1, characterized in that, The stamping mechanism (103) includes a lower die seat (1031) fixedly connected to the inner wall of the support (101), an upper die seat (1032) arranged above the lower die seat (1031), a limit buffer rod (1033) slidably connected to the inner wall of the upper die seat (1032), and the two ends of the limit buffer rod (1033) are fixedly connected to the inner wall of the support (101).

3. The oil-immersed transformer core processing and punching device according to claim 2, characterized in that, The push-pull mechanism (202) includes a connecting rod one (2023) rotatably connected to the top of the upper die seat (1032), a crank (2022) rotatably connected to the end of the connecting rod one (2023) away from the upper die seat (1032), and a connecting shaft (2021) fixedly connected to the end of the crank (2022) away from the connecting rod one (2023).

4. The oil-immersed transformer core processing and punching device according to claim 3, characterized in that, The driving mechanism (201) includes a motor (2011) fixedly connected to the top of the support (101), a fixed shaft (2012) fixedly connected to the motor (2011) through an output shaft, a synchronous gear assembly (2013) arranged at the bottom of the fixed shaft (2012), and the fixed shaft (2012) is in transmission connection with the connecting shaft (2021) through a bevel gear assembly (2014).

5. The oil-immersed transformer core processing and punching device according to claim 4, characterized in that, The transmission mechanism (301) includes a limit disc (3011) rotatably connected to the inner wall of the support (101), and the limit disc (3011) is in transmission connection with the fixed shaft (2012) through a synchronous gear assembly (2013).

6. The oil-immersed transformer core processing and punching device according to claim 5, characterized in that, The limit disc (3011) is rotatably connected with a connecting rod two (3014) at the bottom, and the connecting rod two (3014) is rotatably connected with a sliding block one (3015) at the end away from the limit disc (3011).

7. The oil-immersed transformer core processing and punching device according to claim 6, characterized in that, The inner wall of the sliding block one (3015) is slidably connected with a guide rail one (3016), and the bottom of the guide rail one (3016) is fixedly connected to the inner wall of the support (101).

8. The oil-immersed transformer core processing and punching device according to claim 7, characterized in that, The inner wall of the guide rail one (3016) is slidably connected with a rack (3013), the top of the rack (3013) is fixedly connected to the bottom of the sliding block one (3015), and the side away from the guide rail one (3016) of the rack (3013) is in meshing connection with a fixed gear (3012).

9. The oil-immersed transformer core processing and punching device according to claim 8, characterized in that, The unloading mechanism (302) includes the connecting rod three (3021) which is fixedly connected at the bottom of the fixed gear (3012), the sleeve rod (3022) is rotatably connected to the end of the connecting rod three (3021) away from the fixed gear (3012), the surface of the sleeve rod (3022) is slidably connected with the sliding block two (3025), the surface of the sliding block two (3025) is slidably connected with the guide rail two (3023), and the top of the guide rail two (3023) is fixedly connected to the inner wall of the support (101).

10. The oil-immersed transformer core processing and punching device according to claim 9, characterized in that, The end of the sleeve rod (3022) away from the connecting rod three (3021) is fixedly connected with the Y-shaped rod (3024), and the bottom of the Y-shaped rod (3024) is fixedly connected with two groups of electromagnetic blocks (3026).

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