An automated plate shearing device and a plate shearing method for the processing of switch housings

Abstract

The present invention discloses an automatic plate shearing device and a plate shearing method for the processing of a switch housing, which relates to the field of shearing devices. In the present invention, when the metal plate reaches the shearing position, the lifting and leveling assembly is lowered, so that the lifting and leveling assembly first abuts against the end of the metal plate, and cooperates with the support plate to press the end of the metal plate tightly. Then, as the lifting and leveling assembly continues to descend, the lifting and leveling assembly can translate and unfold along the top surface of the metal plate towards the feeding direction, so that the lifting and leveling assembly flattens the metal plate and cooperates with the support plate to press the part of the metal plate to be sheared tightly, and then the metal plate is sheared; by clamping and flattening the shearing part of the metal plate during shearing, the metal plate is in a straight state, preventing the bending of the metal plate from affecting the shearing accuracy, and the lifting and leveling assembly flattens and presses the metal plate by means of translational stretching, preventing the metal plate from generating creases during flattening, and improving the leveling effect on the metal plate and the shearing quality.

Description

Technical Field

[0001] The present invention belongs to the field of shearing equipment. Specifically, it particularly relates to an automatic plate shearing equipment and a plate shearing method for processing the housing of a switch. Background Art

[0002] A plate shearing machine is a machine that uses one blade to reciprocate linearly relative to another blade to shear a plate. It relies on the moving upper blade and the fixed lower blade, and by using a reasonable blade clearance, it applies a shearing force to metal plates of various thicknesses, causing the plates to break and separate according to the required dimensions. In the prior art, when shearing and processing metal plates with relatively low hardness such as thin plates or aluminum plates, the plates are prone to bending, thus affecting the shearing accuracy.

[0003] Chinese Patent CN103100749B discloses a high-precision plate shearing machine, in which a flattening mechanism flattens the plate when the plate moves past the blade to improve the shearing accuracy of the plate. However, in the above patent, the plate is first flattened and then conveyed for shearing, and the part of the plate to be sheared is not in a clamped and flattened state during shearing. When shearing a metal plate with relatively large flexibility such as a thin plate, the metal plate is prone to recovering to a bent state under the action of flexibility after being flattened, thus affecting the shearing accuracy; especially in the prior art, in order to achieve the automatic blanking of the sheared metal plate, no support structure is provided below the shearing part of the metal plate, making the shearing part of the metal plate in a suspended state during shearing, further increasing the possibility of bending deformation of the metal plate during shearing, and thus reducing the shearing accuracy of the metal plate. Summary of the Invention

[0004] In view of the problems in the related art, the present invention provides an automatic plate shearing equipment and a plate shearing method for processing the housing of a switch to overcome the above-mentioned technical problems existing in the prior related art.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention provides an automatic plate shearing equipment, including a plate shearing machine. A lower blade is fixedly installed on the workbench of the plate shearing machine, and an upper blade located above the lower blade is installed on the upper end of the plate shearing machine in a lifting manner. A pressing column is installed on one side of the upper blade in a lifting manner, and a flattening mechanism is installed on the other side of the upper blade.

[0007] The flattening mechanism includes a bracket. The bracket is fixedly installed on the inner wall of the plate shearing machine. A support plate located on one side of the lower blade is installed inside the inner circle of the bracket. A limit baffle located at the outer end of the support plate is installed on the top surface of the bracket. A lifting and flattening assembly located above the support plate is installed on the top surface of the limit baffle, and the lifting and flattening assembly can extend and expand towards the lower blade when moving downward and abutting against the top surface of the support plate.

[0008] Both ends of the support plate are also provided with a discharging mechanism capable of driving the support plate to rotate and tilt.

[0009] The discharging mechanism includes a torsion assembly and a lifting and supporting assembly. The lifting and supporting assembly can move up and down by one stroke when the lifting and leveling assembly moves upward and resets. The torsion assembly can drive the outer end of the support plate to rotate downward and tilt during the downward movement stroke of the lifting and supporting assembly.

[0010] Further, the lifting and leveling assembly includes a top plate and an extrusion and extension unit. The top plate is fixedly installed at the top end of the limit baffle. A hydraulic cylinder is fixedly installed on the top surface of the top plate. The telescopic end of the hydraulic cylinder extends below the top plate and is fixedly installed with a lifting plate. The bottom surface of the lifting plate is provided with the extrusion and extension unit. A plurality of equally spaced pressure rollers are rotatably installed on the bottom surface of the extrusion and extension unit. The extrusion and extension unit can drive the plurality of pressure rollers to extend and expand downward towards the cutting blade when being extruded.

[0011] Further, the extrusion and extension unit includes a plurality of cross linkages and a plurality of side connection plates. The plurality of side connection plates are equally spaced and fixedly installed on one side of the bottom surface of the lifting plate. One side of each side connection plate is fixedly installed with a multi-stage telescopic shaft, and a positioning block is fixedly installed at the front end of each telescopic section of the multi-stage telescopic shaft.

[0012] The cross nodes on the cross linkages are respectively rotatably connected to the corresponding positioning blocks, and the plurality of connection nodes at the bottom of the cross linkages are evenly rotatably connected to the corresponding pressure rollers.

[0013] Further, a tension spring is installed inside the multi-stage telescopic shaft, and both ends of the tension spring are fixedly connected to the telescopic sections at both ends of the multi-stage telescopic shaft respectively.

[0014] Further, an elastic telescopic shaft is fixedly installed on the bottom surface of the side connection plate, and a pressing strip is fixedly installed on the telescopic end at the bottom of the elastic telescopic shaft.

[0015] Further, a limit sliding groove is opened on the limit baffle on one side of the side connection plate. A limit sliding block is slidably installed inside the limit sliding groove. The inner end of the limit sliding block is fixedly connected to the side connection plate, and a limit plate that slides closely against the back surface of the limit baffle is fixedly installed on the outer side surface of the limit sliding block.

[0016] Further, the torsion assembly includes a connecting shaft and a torsion spring. One end of the connecting shaft is fixedly installed on the inner wall of the bracket, and the other end of the connecting shaft is rotatably connected to the front side of the end face of the support plate. The torsion spring is sleeved on the surface of the connecting shaft, and both ends of the torsion spring are fixedly connected to the bracket and the support plate respectively.

[0017] Further, the lifting and supporting assembly includes a transmission shaft, a rack, a rotating shaft and a supporting seat. The supporting seat is fixedly installed on the inner wall of the shearing machine and is located below the outer end of the supporting plate. A sliding rail is provided on the top surface of the supporting seat, and a translation wedge block is slidably installed in the sliding rail. A lifting wedge block which is in sliding contact is arranged on the top surface of the translation wedge block, and the top end of the lifting wedge block is fixedly connected to the bottom surface of the supporting plate;

[0018] The rack is fixedly installed on one side of the limiting plate. The transmission shaft is rotatably installed on the side surface of the limiting baffle. One end of the transmission shaft is provided with a one-way transmission gear which is in meshing transmission connection with the rack. A transmission wheel is fixedly installed at the other end of the transmission shaft. The rack can drive the one-way transmission gear to rotate when moving upward;

[0019] The rotating shaft is rotatably installed on the inner wall of the shearing machine. A driven wheel and an eccentric wheel are fixedly installed on the rotating shaft. A transmission belt is arranged between the driven wheel and the transmission wheel for transmission connection. A connecting rod is rotatably installed on the outer ring of the eccentric wheel. One end of the connecting rod is rotatably installed with a push-pull rod, and one end of the push-pull rod is fixedly connected to the outer end of the translation wedge block.

[0020] Further, the one-way transmission gear includes an outer tooth ring and a pawl. The outer tooth ring is rotatably installed at the end of the transmission shaft. A ratchet wheel is fixedly installed on the inner ring of the outer tooth ring. The pawl is rotatably installed on the outer wall of the transmission shaft, and the pawl can be in one-way engagement with the ratchet wheel.

[0021] The present invention also discloses a shearing method for processing a switch housing, and the specific steps are as follows:

[0022] First, a metal plate for preparing the switch housing is fed through the gap between the lower blade and the upper blade on the working table of the shearing machine to the supporting plate until one end of the metal plate abuts against the limiting baffle, and then the metal plate reaches the shearing position;

[0023] Then the lifting and leveling assembly descends. When the lifting and leveling assembly descends, it first abuts against the end of the metal plate and cooperates with the supporting plate to press the end of the metal plate. Then, as the lifting and leveling assembly continues to descend, the lifting and leveling assembly can translate and unfold along the top surface of the metal plate towards the feeding direction, so that the lifting and leveling assembly flattens the metal plate and cooperates with the supporting plate to press the part of the metal plate to be sheared;

[0024] Then the pressing column descends to press the other side of the metal plate, and then the upper blade is driven to descend so that the upper blade and the lower blade cooperate to shear the metal plate, and the sheared metal plate is located on the supporting plate;

[0025] After the shearing is completed, raise the lifting and leveling assembly to its reset position to release the clamping pressure on the sheared metal plate. At the same time, the lifting support assembly can move up and down by one stroke when the lifting and leveling assembly moves up to its reset position. When the lifting support assembly is in the downward movement stroke, the torsion assembly drives the outer end of the support plate to rotate downward and tilt, so that the metal plate on the support plate slides down along the inclined plane. When the lifting support assembly is in the upward movement stroke, the lifting support assembly pushes the outer end of the support plate upward to reset it, so that the support plate returns to the horizontal support state.

[0026] The present invention has the following beneficial effects:

[0027] 1. In the present invention, after the metal plate reaches the shearing position, by lowering the lifting and leveling assembly, the lifting and leveling assembly first abuts against the end of the metal plate, and cooperates with the support plate to clamp the end of the metal plate. Then, as the lifting and leveling assembly continues to lower, the lifting and leveling assembly can translate and expand along the top surface of the metal plate in the feeding direction, so that the lifting and leveling assembly flattens the metal plate and cooperates with the support plate to clamp the part of the metal plate to be sheared, and then the metal plate is sheared. By clamping and flattening the shearing part of the metal plate during shearing, the metal plate is in a straight state, preventing the bending of the metal plate from affecting the shearing accuracy. Moreover, the lifting and leveling assembly flattens and clamps the metal plate by means of translational extension, preventing the metal plate from generating creases during flattening, and improving the leveling effect and shearing quality of the metal plate.

[0028] 2. In the present invention, after the shearing is completed, raise the lifting and leveling assembly to its reset position to release the clamping pressure on the sheared metal plate. At the same time, the lifting support assembly can move up and down by one stroke when the lifting and leveling assembly moves up to its reset position. When the lifting support assembly is in the downward movement stroke, the torsion assembly drives the outer end of the support plate to rotate downward and tilt, so that the metal plate on the support plate slides down along the inclined plane, thus realizing the automatic blanking of the sheared metal plate without manual removal of the metal plate, making the shearing process of the metal plate more convenient and fast.

[0029] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is one of the three-dimensional structure schematic diagrams of the automatic shearing equipment of the present invention;

[0032] Figure 2It is a schematic structural diagram of the side of the automatic plate shearing device of the present invention;

[0033] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged partial structure at position A;

[0034] Figure 4 It is the second three-dimensional structural diagram of the automatic plate shearing device of the present invention;

[0035] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged partial structure at position B;

[0036] Figure 6 It is the first three-dimensional structural diagram of the leveling mechanism of the present invention;

[0037] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged partial structure at position C;

[0038] Figure 8 It is the second three-dimensional structural diagram of the leveling mechanism of the present invention;

[0039] Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged partial structure at position D.

[0040] In the figure: 1. Plate shearing machine; 11. Lower blade; 12. Upper blade; 13. Pressure column; 2. Leveling mechanism; 21. Support plate; 22. Bracket; 23. Cross connecting rod; 24. Multistage telescopic shaft; 25. Pressure roller; 26. Top plate; 27. Hydraulic cylinder; 28. Lifting plate; 29. Limit baffle; 210. Side connecting plate; 211. Elastic telescopic shaft; 212. Pressure strip; 213. Limit plate; 214. Limit chute; 215. Positioning block; 216. Tension spring; 217. Limit slider; 3. Unloading mechanism; 31. Connecting shaft; 32. Torsion spring; 33. Transmission shaft; 34. Rack; 35. One-way transmission gear; 36. Translating wedge block; 37. Lifting wedge block; 38. Transmission wheel; 39. Transmission belt; 310. Rotating shaft; 311. Driven wheel; 312. Eccentric wheel; 313. Connecting rod; 314. Support seat; 315. Slide rail; 316. Push-pull rod; 351. Outer gear ring; 352. Ratchet wheel; 353. Pawl. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the invention.

[0042] In the description of the present invention, it should be understood that the terms "open hole", "upper", "lower", "top", "middle", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the invention. Embodiment 1

[0043] Please refer to Figures 1-3 As shown, the present invention is an automatic plate shearing device, including a plate shearing machine 1. A lower blade 11 is fixedly installed on the workbench of the plate shearing machine 1. An upper blade 12 located above the lower blade 11 is installed on the upper end of the plate shearing machine 1 in a lifting manner. A pressing column 13 is installed on one side of the upper blade 12 in a lifting manner. A leveling mechanism 2 is installed on the other side of the upper blade 12; the leveling mechanism 2 includes a bracket 22, the bracket 22 is fixedly installed on the inner wall of the plate shearing machine 1. A support plate 21 located on one side of the lower blade 11 is installed inside the bracket 22. A limit baffle 29 located at the outer end of the support plate 21 is installed on the top surface of the bracket 22. A lifting and leveling component located above the support plate 21 is installed on the top surface of the limit baffle 29, and the lifting and leveling component can extend and expand towards the lower blade 11 when moving downward and abutting against the top surface of the support plate 21; both ends of the support plate 21 are also installed with a discharging mechanism 3 capable of driving the support plate 21 to rotate and tilt; the discharging mechanism 3 includes a torsion component and a lifting support component. The lifting support component can move up and down for a stroke when the lifting and leveling component moves upward and resets. The torsion component can drive the outer end of the support plate 21 to rotate downward and tilt during the downward movement stroke of the lifting support component.

[0044] Among them, a hydraulic telescopic shaft capable of driving the upper blade 12 and the pressing column 13 to move up and down respectively is installed in the plate shearing machine 1. When this automatic plate shearing equipment works, first, the metal plate is conveyed through the gap between the lower blade 11 and the upper blade 12 on the workbench of the plate shearing machine 1 to the support plate 21 until one end of the metal plate abuts against the limit baffle 29, then the metal plate reaches the shearing position; afterwards, the lifting and leveling assembly descends. When the lifting and leveling assembly descends, it first abuts against the end of the metal plate, and cooperates with the support plate 21 to press the end of the metal plate tightly. Then, as the lifting and leveling assembly continues to descend, the lifting and leveling assembly can translate and unfold along the top surface of the metal plate towards the feeding direction, so that the lifting and leveling assembly flattens the metal plate and cooperates with the support plate 21 to press the part of the metal plate to be sheared tightly; then drive the pressing column 13 to descend to press the other side of the metal plate tightly, and then drive the upper blade 12 to descend, so that the upper blade 12 and the lower blade 11 cooperate to shear the metal plate, and the sheared metal plate is located on the support plate 21; when the shearing is completed, lift the lifting and leveling assembly to reset, loosen the pressing and clamping of the sheared metal plate, and at the same time, the lifting support assembly can move up and down a stroke when the lifting and leveling assembly moves up and resets. When the lifting support assembly is in the downward movement stroke, the torsion assembly drives the outer end of the support plate 21 to rotate downward and tilt, so that the metal plate on the support plate 21 slides down along the inclined plane to realize the automatic blanking of the metal plate. When the lifting support assembly is in the upward movement stroke, the lifting support assembly pushes the outer end of the support plate 21 upward to reset, so that the support plate 21 returns to the horizontal support state, facilitating the support and shearing of the metal plate by the support plate 21 to continue.

[0045] By clamping and flattening the shearing part of the metal plate during shearing, the metal plate is in a flat state, preventing the bending of the metal plate from affecting the shearing accuracy. Moreover, the lifting and leveling assembly flattens and presses the metal plate by means of translational extension, preventing creases from being generated when the metal plate is flattened, and can improve the leveling effect and shearing quality of the metal plate; by driving the support plate 21 to rotate and tilt for blanking after the metal plate is sheared, the automatic blanking of the sheared metal plate can be realized, without the need for manual removal of the sheared metal plate, making the shearing process of the metal plate more convenient and fast. Embodiment 2

[0046] Please refer to Figure 2 、 Figure 3 、 Figures 6-9As shown in the figure, the difference between this embodiment and the above embodiment is that the lifting and leveling assembly includes a top plate 26 and a pressing and stretching unit. The top plate 26 is fixedly installed at the top end of the limit baffle 29. A hydraulic cylinder 27 is fixedly installed on the top surface of the top plate 26. The telescopic end of the hydraulic cylinder 27 extends below the top plate 26 and is fixedly installed with a lifting plate 28. A pressing and stretching unit is installed on the bottom surface of the lifting plate 28. A plurality of evenly distributed pressure rollers 25 are rotatably installed on the bottom surface of the pressing and stretching unit. The pressing and stretching unit can drive the plurality of pressure rollers 25 to extend and expand downward towards the lower blade 11 when being squeezed; the pressing and stretching unit includes a plurality of cross linkages 23 and a plurality of side connecting plates 210. The plurality of side connecting plates 210 are evenly distributed and fixedly installed on one side of the bottom surface of the lifting plate 28. One side of each side connecting plate 210 is fixedly installed with a multi-stage telescopic shaft 24. A positioning block 215 is fixedly installed at the front end of each telescopic joint of the multi-stage telescopic shaft 24; the cross nodes on the cross linkages 23 are respectively rotatably connected to the corresponding positioning blocks 215, and a plurality of connection nodes at the bottom of the cross linkages 23 are evenly rotatably connected to the corresponding pressure rollers 25; a tension spring 216 is installed inside the multi-stage telescopic shaft 24, and both ends of the tension spring 216 are fixedly connected to the telescopic joints at both ends of the multi-stage telescopic shaft 24;

[0047] When it is necessary to flatten and shear the metal plate on the surface of the support plate 21, first drive the lifting plate 28 to descend through the hydraulic cylinder 27. At this time, the lifting plate 28 drives the side connecting plate 210, the cross linkage 23, the multi-stage telescopic shaft 24 and the pressure roller 25 to descend synchronously, so that the pressure roller 25 abuts against the top surface of the end of the metal plate and cooperates with the support plate 21 to clamp the end of the metal plate. After that, as the lifting plate 28 continues to descend while the height of the pressure roller 25 abutting against the metal plate surface remains unchanged, at this time, the cross linkage 23 moves and unfolds towards the metal plate feeding side under the extrusion of the pressure roller 25, so as to flatten and press the metal plate through the rolling and unfolding pressure roller 25, so that the metal plate always remains flat during the shearing process, and the cross linkage 23 drives the multi-stage telescopic shaft 24 to elongate synchronously through the positioning block 215 during the unfolding process and stretches the tension spring 216. Among them, the multi-stage telescopic shaft 24 can support and limit the cross linkage 23 to improve the stability of the installation of the cross linkage 23 and the pressure roller 25, so as to ensure that the pressure roller 25 can flatten and press the metal plate;

[0048] After the shearing is completed, then drive the lifting plate 28 to ascend and reset through the hydraulic cylinder 27. At this time, the lifting plate 28 drives the side connecting plate 210, the cross linkage 23, the multi-stage telescopic shaft 24 and the pressure roller 25 to ascend and reset synchronously, so that the pressure roller 25 is separated from the sheared metal plate, which is convenient for the subsequent blanking of the metal plate. At the same time, the tension spring 216 pulls the multi-stage telescopic shaft 24 to reset and contract through the elastic force, so that the multi-stage telescopic shaft 24 drives the cross linkage 23 and the pressure roller 25 to contract and close through the positioning block 215, so as to facilitate the pressure roller 25 to flatten and press the metal plate during the next round of metal plate shearing.

[0049] Furthermore, an elastic telescopic shaft 211 is fixedly installed on the bottom surface of the side connecting plate 210, and a pressing strip 212 is fixedly installed on the telescopic end at the bottom of the elastic telescopic shaft 211; when the side connecting plate 210 moves downward to drive the pressing roller 25 to press and flatten the metal plate, the side connecting plate 210 drives the elastic telescopic shaft 211 and the pressing strip 212 to move downward synchronously, so that the pressing strip 212 clamps and fixes the outermost side end of the metal plate on the surface of the support plate 21, preventing the metal plate from sliding and shifting in the feeding direction when being pressed and flattened by the pressing roller 25 subsequently, which is beneficial to improving the shearing accuracy of the metal plate.

[0050] Furthermore, a limiting chute 214 is provided on the limiting baffle 29 on one side of the side connecting plate 210, a limiting slider 217 is slidably installed inside the limiting chute 214, the inner side end of the limiting slider 217 is fixedly connected to the side connecting plate 210, and a limiting plate 213 that slides and clings to the back surface of the limiting baffle 29 is fixedly installed on the outer side surface of the limiting slider 217; when the side connecting plate 210 moves up and down, it drives the limiting slider 217 and the limiting plate 213 to slide up and down synchronously on the outer side inside the limiting chute 214, so as to guide the sliding of the side connecting plate 210 through the cooperation of the limiting plate 213, the limiting chute 214 and the limiting slider 217, making the up and down movement process of the side connecting plate 210 more stable, thereby improving the stability and pressing and flattening effect when the metal plate is clamped and flattened. Embodiment III

[0051] Please refer to Figures 3-5 、 Figures 7-9 As shown, the difference between this embodiment and the above embodiment is that the torsion assembly includes a connecting shaft 31 and a torsion spring 32. One end of the connecting shaft 31 is fixedly installed on the inner wall of the bracket 22, the other end of the connecting shaft 31 is rotatably connected to the front side of the end face of the support plate 21, the torsion spring 32 is sleeved on the surface of the connecting shaft 31, and both ends of the torsion spring 32 are fixedly connected to the bracket 22 and the support plate 21 respectively; the lifting support assembly includes a transmission shaft 33, a rack 34, a rotating shaft 310 and a support seat 314. The support seat 314 is fixedly installed on the inner wall of the shearing machine 1 and is located below the outer side end of the support plate 21. A slide rail 315 is provided on the top surface of the support seat 314, a translation wedge block 36 is slidably installed inside the slide rail 315, a lifting wedge block 37 that slides and abuts is arranged on the top surface of the translation wedge block 36, and the top end of the lifting wedge block 37 is fixedly connected to the bottom surface of the support plate 21;

[0052] The rack 34 is fixedly mounted on one side of the limit plate 213, and the transmission shaft 33 is rotatably mounted on the side of the limit baffle 29. A one-way transmission gear 35 meshing and transmission-connected with the rack 34 is mounted on one end of the transmission shaft 33, and a transmission wheel 38 is fixedly mounted on the other end of the transmission shaft 33. The rack 34 can mesh and drive the one-way transmission gear 35 to rotate when going up; the rotating shaft 310 is rotatably mounted on the inner wall of the shearing machine 1, and a driven wheel 311 and an eccentric wheel 312 are fixedly mounted on the rotating shaft 310. The driven wheel 311 and the transmission wheel 38 are connected by a transmission belt 39. A connecting rod 313 is rotatably mounted on the outer ring of the eccentric wheel 312, and a push-pull rod 316 is rotatably mounted on one end of the connecting rod 313, and one end of the push-pull rod 316 is fixedly connected to the outer end of the translation wedge block 36;

[0053] The translation wedge block 36 and the lifting wedge block 37 are initially supported by sliding against each other through a plane, so that the support plate 21 is in a parallel state. When the metal plate shearing is completed and the lifting plate 28 is reset upward, the rack 34 can be driven to move upward synchronously through the limit plate 213. At this time, the rack 34 is engaged to drive the one-way transmission gear 35 to rotate, thereby driving the transmission shaft 33 and the transmission wheel 38 to rotate. The transmission wheel 38 then drives the driven wheel 311 to rotate one circle through the transmission belt 39. The driven wheel 311 drives the eccentric wheel 312 to rotate synchronously for one circle through the rotating shaft 310. During the process of the eccentric wheel 312 rotating one circle, the translation wedge block is first moved upward by the connecting rod 313 and the push-pull rod 316. The lifting wedge block 37 is pushed upward and reset by the eccentric wheel 312, and the lifting wedge block 37 is pushed upward and reset by the eccentric wheel 312.

[0054] Furthermore, the one-way transmission gear 35 includes an outer gear ring 351 and a ratchet pawl 353. The outer gear ring 351 is rotatably mounted on the end of the transmission shaft 33. The inner ring of the outer gear ring 351 is fixedly mounted with a ratchet 352. The ratchet pawl 353 is rotatably mounted on the outer wall of the transmission shaft 33, and the ratchet pawl 353 can be unidirectionally engaged with the ratchet 352. When the rack 34 engages upward to drive the outer gear ring 351 to rotate clockwise, the outer gear ring 351 drives the ratchet 352 to rotate synchronously clockwise. At this time, the ratchet 352 The wheel 352 engages with the pawl 353, driving the transmission shaft 33 to rotate synchronously, thereby driving the support plate 21 to rotate and blank. When the rack 34 is driven downward during the shearing process of the metal plate, the rack 34 engages to drive the outer gear ring 351 to rotate counterclockwise, and at the same time, the outer gear ring 351 drives the ratchet 352 to rotate synchronously counterclockwise. At this time, the ratchet 352 and the pawl 353 rotate in an staggered manner, so that the transmission shaft 33 remains different, thereby keeping the support plate 21 in a horizontal state to support the metal plate thereon. Embodiment 4

[0055] See also Figures 1-9 As shown, this embodiment discloses a plate shearing method for processing a switch housing, and the specific steps are as follows:

[0056] First, the metal plate used to prepare the switch housing is conveyed on the workbench of the shearing machine 1 through the gap between the lower blade 11 and the upper blade 12 to the support plate 21 until one end of the metal plate abuts against the limit baffle 29, and the metal plate reaches the shearing position;

[0057] Then, the lifting and leveling assembly is moved downward. When the lifting and leveling assembly moves downward, it first abuts against the end of the metal plate and cooperates with the support plate 21 to press the end of the metal plate. Then, as the lifting and leveling assembly continues to move downward, the lifting and leveling assembly can be extended along the top surface of the metal plate in the feeding direction, so that the lifting and leveling assembly can flatten the metal plate and cooperate with the support plate 21 to press the part of the metal plate to be sheared.

[0058] Then the pressing column 13 is moved downward to press the other side of the metal plate, and then the upper blade 12 is driven downward so that the upper blade 12 cooperates with the lower blade 11 to shear the metal plate, and the sheared metal plate is located on the support plate 21;

[0059] When the shearing is completed, the lifting and leveling assembly is reset upward to release the clamping of the sheared metal plate. At the same time, the lifting support assembly can move up and down a stroke when the lifting and leveling assembly is reset upward. When the lifting support assembly is in the downward stroke, the torsion assembly drives the outer end of the support plate 21 to rotate and tilt downward so that the metal plate on the support plate 21 slides down along the inclined surface. When the lifting support assembly is in the upward stroke, the lifting support assembly pushes the outer end of the support plate 21 upward to reset it so that the support plate 21 returns to a horizontal support state.

[0060] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not exhaust all the details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the invention, so that those skilled in the art can well understand and utilize the invention.

Claims

1. An automated plate shearing device, comprising a plate shearing machine, characterized in that: A lower blade is fixedly installed on the working table of the shearing machine, an upper blade located above the lower blade is installed in a lifting manner on the upper end of the shearing machine, a pressure column is installed in a lifting manner on one side of the upper blade, and a leveling mechanism is installed on the other side of the upper blade; The leveling mechanism includes a bracket, which is fixedly mounted on the inner wall of the shearing machine, a support plate located on one side of the lower blade is mounted on the inner ring of the bracket, a limit baffle located on the outer end of the support plate is mounted on the top surface of the bracket, a lifting and leveling assembly located above the support plate is mounted on the top surface of the limit baffle, and the lifting and leveling assembly can extend and unfold in the direction of the lower blade when it descends and abuts against the top surface of the support plate; Both ends of the support plate are also equipped with a discharge mechanism that can drive the support plate to rotate and tilt; The unloading mechanism includes a torsion assembly and a lifting support assembly. The lifting support assembly can move up and down a stroke when the lifting and leveling assembly is reset upward. The torsion assembly can drive the outer end of the support plate to rotate and tilt downward during the downward movement of the lifting support assembly. The lifting and leveling assembly includes a top plate and an extrusion and extension unit. The top plate is fixedly installed on the top of the limit baffle. A hydraulic cylinder is fixedly installed on the top surface of the top plate. The telescopic end of the hydraulic cylinder extends to the bottom of the top plate and is fixedly installed with a lifting plate. The bottom surface of the lifting plate is installed with an extrusion and extension unit. A plurality of equally spaced pressing rollers are rotatably installed on the bottom surface of the extrusion and extension unit. The extrusion and extension unit can drive the plurality of pressing rollers to extend and expand in the direction of the lower blade when subjected to extrusion. The extrusion and extension unit includes a plurality of cross-links and a plurality of side connecting plates, wherein the plurality of side connecting plates are equidistantly distributed and fixedly installed on one side of the bottom surface of the lifting plate, a multi-stage telescopic shaft is fixedly installed on one side of each side connecting plate, and a positioning block is fixedly installed at the front end of each telescopic section of the multi-stage telescopic shaft; The cross nodes on the cross connecting rod are respectively connected to the corresponding positioning blocks for rotation, and the multiple connection nodes at the bottom of the cross connecting rod are evenly connected to the corresponding pressing rollers for rotation; The limit baffle is provided with a limit slide groove located on one side of the side connecting plate, a limit slider is slidably installed inside the limit slide groove, the inner end of the limit slider is fixedly connected to the side connecting plate, and a limit plate is fixedly installed on the outer side of the limit slider and slides tightly against the back of the limit baffle; The lifting support assembly includes a transmission shaft, a rack, a rotating shaft and a support seat. The support seat is fixedly installed on the inner wall of the shearing machine and is located below the outer end of the support plate. A slide rail is provided on the top surface of the support seat. A translation wedge block is slidably installed in the slide rail. A lifting wedge block is provided on the top surface of the translation wedge block for sliding contact. The top end of the lifting wedge block is fixedly connected to the bottom surface of the support plate. The rack is fixedly installed on one side of the limit plate, the transmission shaft is rotatably installed on the side of the limit baffle, one end of the transmission shaft is installed with a one-way transmission gear meshing with the rack, and the other end of the transmission shaft is fixedly installed with a transmission wheel, and the rack can mesh and drive the one-way transmission gear to rotate when going up; The rotating shaft is rotatably installed on the inner wall of the shearing machine, and a driven wheel and an eccentric wheel are fixedly installed on the rotating shaft. The driven wheel and the driving wheel are connected by a transmission belt. A connecting rod is rotatably installed on the outer ring of the eccentric wheel, and a push-pull rod is rotatably installed on one end of the connecting rod. One end of the push-pull rod is fixedly connected to the outer end of the translation wedge block.

2. The automatic shearing device according to claim 1 is characterized in that: A tension spring is installed inside the multi-stage telescopic shaft, and two ends of the tension spring are respectively fixedly connected to the telescopic joints at two ends of the multi-stage telescopic shaft.

3. The automatic shearing device according to claim 1 is characterized in that: An elastic telescopic shaft is fixedly installed on the bottom surface of the side connecting plate, and a pressure strip is fixedly installed on the telescopic end of the bottom of the elastic telescopic shaft.

4. The automatic shearing device according to claim 1 is characterized in that: The torsion assembly includes a connecting shaft and a torsion spring, one end of the connecting shaft is fixedly mounted on the inner wall of the bracket, the other end of the connecting shaft is rotatably connected to the front side of the end face of the support plate, the torsion spring is sleeved on the surface of the connecting shaft, and the two ends of the torsion spring are respectively fixedly connected to the bracket and the support plate.

5. The automatic shearing device according to claim 1 is characterized in that: The one-way transmission gear includes an outer gear ring and a ratchet. The outer gear ring is rotatably mounted on the end of the transmission shaft. A ratchet is fixedly mounted on the inner ring of the outer gear ring. The ratchet is rotatably mounted on the outer wall of the transmission shaft, and the ratchet can be unidirectionally engaged with the ratchet.

6. A plate shearing method for processing a switch housing, using the automated plate shearing equipment according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: First, the metal plate used to prepare the switch housing is conveyed on the shearing machine workbench through the gap between the lower blade and the upper blade to the support plate until one end of the metal plate abuts against the limit baffle, and the metal plate reaches the shearing position; Then, the lifting and leveling assembly is moved downward. When the lifting and leveling assembly moves downward, it first abuts against the end of the metal plate and cooperates with the support plate to press the end of the metal plate. Then, as the lifting and leveling assembly continues to move downward, the lifting and leveling assembly can be extended along the top surface of the metal plate in the feeding direction, so that the lifting and leveling assembly can flatten the metal plate and cooperate with the support plate to press the part of the metal plate to be sheared. Then the pressing column is moved downward to press the other side of the metal plate, and then the upper blade is driven downward so that the upper blade cooperates with the lower blade to shear the metal plate, and the sheared metal plate is located on the support plate; When the shearing is completed, the lifting and leveling assembly is reset upward to release the clamping of the sheared metal plate. At the same time, the lifting support assembly can move up and down a stroke when the lifting and leveling assembly is reset upward. When the lifting support assembly is in the downward stroke, the torsion assembly drives the outer end of the support plate to rotate and tilt downward so that the metal plate on the support plate slides down along the inclined surface. When the lifting support assembly is in the upward stroke, the lifting support assembly pushes the outer end of the support plate upward to reset it so that the support plate returns to a horizontal support state.

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