Automatic plate shearing equipment and plate shearing method for switch shell processing

Abstract

The invention discloses automatic plate shearing equipment and a plate shearing method for switch shell processing, and relates to the field of shearing equipment. According to the metal plate shearing device, after a metal plate reaches a shearing position, the lifting flattening assembly descends, so that the lifting flattening assembly firstly abuts against the end of the metal plate and is matched with the supporting plate to press the end of the metal plate, and then along with continuous descending of the lifting flattening assembly, the lifting flattening assembly can horizontally move and unfold in the feeding direction along the top face of the metal plate; the lifting flattening assembly is matched with the supporting plate to tightly press the to-be-sheared part of the metal plate, and then the metal plate is sheared; the shearing part of the metal plate is clamped and flattened during shearing, so that the metal plate is in a straight state, the plate shearing precision is prevented from being influenced by bending of the metal plate, the metal plate is flattened and compacted by the lifting flattening assembly in a translation and extension mode, the metal plate is prevented from generating creases during flattening, and the plate shearing precision is improved. And the flattening effect and the plate shearing quality of the metal plate can be improved.

Description

Technical Field

[0001] The invention belongs to the field of shearing equipment, and in particular, relates to an automatic shearing device and a shearing method for processing a switch casing. Background Art

[0002] Shearing machine is a machine that shears plates by reciprocating linear motion of one blade relative to another blade. It applies shearing force to metal plates of various thicknesses by using a moving upper blade and a fixed lower blade, and adopts a reasonable blade gap, so that the plates are broken and separated according to the required size. In the prior art, when shearing metal plates with low hardness such as thin plates or aluminum plates, the plates are easy to bend, thus affecting the shearing accuracy.

[0003] Chinese patent CN103100749B discloses a high-precision shearing machine, in which a flattening mechanism is used to flatten the plate body when the plate body moves past the blade, so as to improve the shearing accuracy of the plate body. However, in the above patent, the plate body is flattened first, and then transported and sheared, and the part of the plate body to be sheared is not in a clamped and flattened state during shearing. When shearing a metal plate with high flexibility such as a thin plate, the metal plate is easy to restore the bending state under the action of flexibility after flattening, thereby affecting the shearing accuracy; in particular, in order to realize the automatic blanking of the metal plate after shearing in the prior art, no support structure is provided under the shearing part of the metal plate, so that the shearing part of the metal plate is in a suspended state during shearing, which further increases the possibility of bending and deformation of the metal plate during shearing, thereby 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 proposes an automated plate shearing device and a plate shearing method for processing a switch casing to overcome the above-mentioned technical problems existing in the existing related art.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is an automated plate shearing device, comprising a plate shearing machine, a lower blade is fixedly installed on the working table of the plate shearing machine, an upper blade located above the lower blade is installed in a lifting manner on the upper end of the plate 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 comprises a bracket, the bracket 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 capable of driving the support plate to rotate and tilt; The unloading mechanism includes a torsion component and a lifting support component. The lifting support component can move up and down a stroke when the lifting and leveling component is reset upward. The torsion component can drive the outer end of the support plate to rotate and tilt downward during the downward movement of the lifting support component.

[0006] Furthermore, the lifting and leveling assembly includes a top plate and an extrusion and stretching 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 the extrusion and stretching unit, and a plurality of equidistantly distributed pressure rollers are rotatably installed on the bottom surface of the extrusion and stretching unit, and the extrusion and stretching unit can drive the plurality of pressure rollers to extend and expand in the direction of the lower blade when subjected to extrusion.

[0007] Furthermore, the extrusion and extension unit comprises a plurality of cross-links and a plurality of side connecting plates, 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 of the side connecting plates, 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 rotatably connected to the corresponding positioning blocks, and the multiple connection nodes at the bottom of the cross connecting rod are evenly rotatably connected to the corresponding pressure rollers.

[0008] Furthermore, 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.

[0009] Furthermore, an elastic telescopic shaft is fixedly mounted on the bottom surface of the side connecting plate, and a pressure strip is fixedly mounted on the telescopic end of the bottom of the elastic telescopic shaft.

[0010] Furthermore, the limit baffle is provided with a limit slide groove located on one side of the side connecting plate, and 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 the outer side surface of the limit slider is fixedly installed with a limit plate that slides tightly against the back of the limit baffle.

[0011] Furthermore, 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.

[0012] Furthermore, the lifting support assembly includes a transmission shaft, a rack, a rotating shaft and a support seat, the support seat is fixedly mounted 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 mounted in the slide rail, a lifting wedge block is provided on the top surface of the translation wedge block for sliding contact, and the top end of the lifting wedge block is fixedly connected to the bottom surface of the support plate; The rack is fixedly mounted on one side of the limit plate, the transmission shaft is rotatably mounted on the side of the limit baffle, one end of the transmission shaft is mounted with a one-way transmission gear meshing with the rack, and the other end of the transmission shaft is fixedly mounted with a transmission wheel, and the rack can mesh with the one-way transmission gear to drive the rotation when going up; The rotating shaft is rotatably mounted on the inner wall of the shearing machine, and a driven wheel and an eccentric wheel are fixedly mounted on the rotating shaft. The driven wheel and the transmission wheel are connected via a transmission belt. A connecting rod is rotatably mounted on the outer ring of the eccentric wheel, and a push-pull rod is rotatably mounted on one end of the connecting rod, and one end of the push-pull rod is fixedly connected to the outer end of the translational wedge block.

[0013] Furthermore, the one-way transmission gear includes an outer ring gear and a pawl, the outer ring gear is rotatably mounted on the end of the transmission shaft, the inner ring of the outer ring gear is fixedly mounted with a ratchet, the pawl is rotatably mounted on the outer wall of the transmission shaft, and the pawl can be unidirectionally engaged with the ratchet.

[0014] The present invention also discloses a plate shearing method for processing a switch housing, and 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.

[0015] The present invention has the following beneficial effects: 1. In the present invention, when the metal plate reaches the shearing position, the lifting and leveling assembly is moved downward 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. Then, as the lifting and leveling assembly continues to move downward, the lifting and leveling assembly can be translated and expanded along the top surface of the metal plate in the feeding direction, so that the lifting and leveling assembly can smooth the metal plate and cooperate with the support plate to press the part of the metal plate to be sheared, and then the metal plate is sheared. During shearing, the shearing part of the metal plate is clamped and flattened so that the metal plate is in a straight state, thereby preventing the bending of the metal plate from affecting the shearing accuracy. The lifting and leveling assembly smoothes and presses the metal plate by means of translational extension, thereby preventing the metal plate from having creases when flattened, thereby improving the leveling effect and shearing quality of the metal plate.

[0016] 2. In the present invention, when 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 be lifted and moved through 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, thereby realizing automatic blanking of the sheared metal plate without the need to manually remove the metal plate, making the shearing process of the metal plate more convenient and quick.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 described below are only some embodiments of the invention. For ordinary technicians in this field, they can also obtain drawings based on these drawings without paying creative work.

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the automatic plate shearing device of the present invention; Figure 2 It is a structural schematic diagram of the side surface of the automatic plate shearing equipment of the present invention; Figure 3 For the present invention Figure 2 A local enlarged structural schematic diagram; Figure 4 This is the second schematic diagram of the three-dimensional structure of the automated plate shearing device of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B; Figure 6 It is one of the three-dimensional structural schematic diagrams of the leveling mechanism of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the local enlarged structure at C; Figure 8 The second schematic diagram of the three-dimensional structure of the leveling mechanism of the present invention; Fig. 9 For the present invention Figure 8 Schematic diagram of the local enlarged structure at D.

[0020] In the figure: 1, shearing machine; 11, lower blade; 12, upper blade; 13, pressure column; 2, leveling mechanism; 21, support plate; 22, bracket; 23, cross connecting rod; 24, multi-stage 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 slide; 215, positioning block; 216, tension spring; 217. Limiting slider; 3. Unloading mechanism; 31. Connecting shaft; 32. Torsion spring; 33. Transmission shaft; 34. Rack; 35. One-way transmission gear; 36. Translation 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; 353. Paw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0022] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention. Embodiment 1

[0023] See also Figure 1-Figure 3 As shown, the present invention is an automated plate shearing device, comprising 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 in a lifting manner at the upper end of the plate shearing machine 1, a pressure column 13 is installed in a lifting manner on one side of the upper blade 12, and a leveling mechanism 2 is installed on the other side of the upper blade 12; the leveling mechanism 2 comprises 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 on the inner circle of the bracket 22, and a support plate 21 located on the outer end of the support plate 21 is installed on the top surface of the bracket 22 The limit baffle 29 is provided with a lifting and leveling assembly located above the support plate 21 on the top surface of the limit baffle 29, and the lifting and leveling assembly can extend and unfold in the direction of the downward blade 11 when it descends and abuts against the top surface of the support plate 21; both ends of the support plate 21 are also provided with a discharge mechanism 3 that can drive the support plate 21 to rotate and tilt; the discharge mechanism 3 includes a torsion assembly and a lifting support assembly, the lifting support assembly can be lifted and moved by a stroke when the lifting and leveling assembly is reset upward, and the torsion assembly can drive the outer end of the support plate 21 to rotate and tilt downward during the downward movement of the lifting support assembly; Among them, the shearing machine 1 is equipped with a hydraulic telescopic shaft that can drive the upper blade 12 and the pressure column 13 to rise and fall respectively. When the automated shearing equipment is working, the metal plate is first transported 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; then the lifting and leveling assembly is moved downward, and 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, and then as the lifting and leveling assembly continues to move downward, the lifting and leveling assembly can be translated and expanded along the top surface of the metal plate in the feeding direction, so that the lifting and leveling assembly can smooth the metal plate, and cooperate with the support plate 21 to press the part of the metal plate to be sheared; then the pressure column 13 is driven downward to The other side is pressed tightly, 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; when the shearing is completed, the lifting and leveling assembly is reset upward to release the clamping and clamping of the sheared metal plate. At the same time, the lifting and leveling assembly can move up and down a stroke when the lifting and leveling assembly is reset upward. When the lifting and leveling assembly is in the downward movement 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 to realize automatic blanking of the metal plate. When the lifting and leveling assembly is in the upward movement stroke, the lifting and supporting assembly pushes the outer end of the support plate 21 upward to reset, so that the support plate 21 returns to a horizontal supporting state, which is convenient for the support plate 21 to continue to support and shear the metal plate; By clamping and flattening the shearing part of the metal plate during shearing, the metal plate is kept in a straight state, preventing the shearing accuracy from being affected by the bending of the metal plate, and the lifting and leveling assembly flattens and presses the metal plate by means of translational extension, preventing the metal plate from having creases when flattened, thereby improving the leveling effect and shearing quality of the metal plate; by driving the support plate 21 to rotate and tilt for blanking after the shearing of the metal plate is completed, the automatic blanking of the sheared metal plate can be achieved without the need to manually remove the sheared metal plate, making the shearing process of the metal plate more convenient and quick. Embodiment 2

[0024] See also Figure 2 , Figure 3 , Figure 6-Figure 9As shown, the difference between this embodiment and the above embodiment is that the lifting and leveling assembly includes a top plate 26 and an extrusion and extension unit. The top plate 26 is fixedly installed on the top 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 to the bottom of the top plate 26 and is fixedly installed with a lifting plate 28. The bottom surface of the lifting plate 28 is installed with an extrusion and extension unit. A plurality of equally spaced pressure rollers 25 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 25 to extend and expand in the direction of the lower blade 11 when subjected to the extrusion effect. The extrusion and extension unit includes a plurality of cross-connected The rod 23 and multiple side connecting plates 210 are evenly distributed and fixedly installed on one side of the bottom surface of the lifting plate 28. A multi-stage telescopic shaft 24 is fixedly installed on one side of each side connecting plate 210, and a positioning block 215 is fixedly installed at the front end of each telescopic section of the multi-stage telescopic shaft 24; the cross nodes on the cross connecting rod 23 are rotatably connected to the corresponding positioning blocks 215, and the multiple connecting nodes at the bottom of the cross connecting rod 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 the two ends of the tension spring 216 are fixedly connected to the telescopic sections at both ends of the multi-stage telescopic shaft 24; When it is necessary to flatten and shear the metal plate on the surface of the support plate 21, the lifting plate 28 is first driven downward by the hydraulic cylinder 27. At this time, the lifting plate 28 drives the side connecting plate 210, the cross connecting rod 23, the multi-stage telescopic shaft 24 and the pressure roller 25 to move downward 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. Then, as the lifting plate 28 continues to move downward, the pressure roller 25 abuts against the surface of the metal plate at a constant height. At this time, the cross connecting rod 23 is at the pressure roller 25. Under the extrusion of the material, the metal sheet can be easily moved and unfolded, so that the metal sheet can be flattened and pressed by the rolling and unfolding pressure roller 25, so that the metal sheet can always remain straight during the shearing process, and the cross link 23 drives the multi-stage telescopic shaft 24 to extend synchronously through the positioning block 215 during the unfolding process, and the tension spring 216 is stretched, wherein the multi-stage telescopic shaft 24 can support and limit the cross link 23, improve the installation stability of the cross link 23 and the pressure roller 25, and ensure that the pressure roller 25 can flatten and press the metal sheet; When the shearing is completed, the hydraulic cylinder 27 drives the lifting plate 28 to reset upward. At this time, the lifting plate 28 drives the side connecting plate 210, the cross connecting rod 23, the multi-stage telescopic shaft 24 and the pressure roller 25 to reset upward 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 elastic force, so that the multi-stage telescopic shaft 24 drives the cross connecting rod 23 and the pressure roller 25 to contract and close through the positioning block 215, so as to facilitate the pressure roller 25 to smooth and press the metal plate during the next round of metal plate shearing.

[0025] Furthermore, an elastic telescopic shaft 211 is fixedly installed on the bottom surface of the side connecting plate 210, and a pressure 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 pressure roller 25 to press and smooth the metal plate, the side connecting plate 210 drives the elastic telescopic shaft 211 and the pressure strip 212 to move downward synchronously, so that the pressure strip 212 clamps and fixes the outermost end of the metal plate on the surface of the support plate 21, preventing the metal plate from sliding and deviating in the feeding direction when it is subsequently pressed and smoothed under the action of the pressure roller 25, which is beneficial to improving the shearing accuracy of the metal plate.

[0026] Furthermore, a limiting groove 214 is provided on the limiting baffle 29, which is located on one side of the side connecting plate 210. A limiting slider 217 is installed in the internal sliding manner of the limiting groove 214. The inner end of the limiting slider 217 is fixedly connected to the side connecting plate 210, and the outer side surface of the limiting slider 217 is fixedly installed with a limiting plate 213 that slides and fits tightly against the back of the limiting baffle 29; when the side connecting plate 210 moves up and down, the limiting slider 217 and the limiting plate 213 are driven to rise and fall synchronously on the outer side of the limiting groove 214, so that the limiting plate 213, the limiting groove 214 and the limiting slider 217 cooperate to guide the sliding of the side connecting plate 210, so that the lifting and lowering operation process of the side connecting plate 210 is more stable, thereby improving the stability and clamping and smoothing effect of the metal plate when clamping and smoothing. Embodiment 3

[0027] See also Figure 3-Figure 5 , Figure 7-Figure 9 As shown, the difference between this embodiment and the above-mentioned 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 mounted on the inner wall of the bracket 22, and 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 the two ends of the torsion spring 32 are respectively fixedly connected to the bracket 22 and the support plate 21; 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 mounted on the inner wall of the shearing machine 1 and is located below the outer 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 mounted in the slide rail 315, and a lifting wedge block 37 is provided on the top surface of the translation wedge block 36 for sliding contact, and the top end of the lifting wedge block 37 is fixedly connected to the bottom surface of the support plate 21; 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; 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.

[0028] 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

[0029] See also Figure 1-Figure 9 As shown, this embodiment discloses a plate shearing method for processing a switch housing, and the specific steps are as follows: 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; 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. 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; 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.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can understand and use the invention well.

Claims

1. An automated plate shearing device, comprising a plate shearing machine, characterized in that: A lower blade is fixedly installed on the workbench 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 comprises a bracket, the bracket 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 capable of driving the support plate to rotate and tilt; The unloading mechanism includes a torsion component and a lifting support component. The lifting support component can move up and down a stroke when the lifting and leveling component is reset upward. The torsion component can drive the outer end of the support plate to rotate and tilt downward during the downward movement of the lifting support component.

2. The automatic shearing device according to claim 1 is characterized in that: The lifting and leveling assembly includes a top plate and an extrusion and stretching 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 the extrusion and stretching unit. A plurality of equidistantly distributed pressure rollers are rotatably installed on the bottom surface of the extrusion and stretching unit. The extrusion and stretching unit can drive the plurality of pressure rollers to extend and unfold in the direction of the lower blade when subjected to extrusion.

3. The automatic shearing device according to claim 2 is characterized in that: The extrusion and stretching unit comprises 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, and a multi-stage telescopic shaft is fixedly installed on one side of each of the side connecting plates, 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 rotatably connected to the corresponding positioning blocks, and the multiple connection nodes at the bottom of the cross connecting rod are evenly rotatably connected to the corresponding pressure rollers.

4. The automatic shearing device according to claim 3 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.

5. The automatic shearing device according to claim 3 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.

6. The automatic shearing device according to claim 3 is characterized in that: The limit baffle is provided with a limit slide groove located on one side of the side connecting plate, the inner side of the limit slide groove is slidably installed with a limit slider, the inner side end of the limit slider is fixedly connected to the side connecting plate, and the outer side surface of the limit slider is fixedly installed with a limit plate that slides tightly against the back side of the limit baffle.

7. 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.

8. The automatic shearing device according to claim 6, characterized in that: 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 mounted on one side of the limit plate, the transmission shaft is rotatably mounted on the side of the limit baffle, one end of the transmission shaft is mounted with a one-way transmission gear meshing with the rack, and the other end of the transmission shaft is fixedly mounted with a transmission wheel, and the rack can mesh with the one-way transmission gear to drive the rotation when going up; The rotating shaft is rotatably mounted on the inner wall of the shearing machine, and a driven wheel and an eccentric wheel are fixedly mounted on the rotating shaft. The driven wheel and the transmission wheel are connected via a transmission belt. A connecting rod is rotatably mounted on the outer ring of the eccentric wheel, and a push-pull rod is rotatably mounted on one end of the connecting rod, and one end of the push-pull rod is fixedly connected to the outer end of the translational wedge block.

9. The automatic shearing device according to claim 8, 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.

10. A plate shearing method for processing a switch housing, using the automated plate shearing equipment according to any one of claims 1 to 9, 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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