Continuous metal plate punching and forming integrated equipment and forming method thereof

Abstract

The invention discloses continuous metal plate punching and forming integrated equipment, and belongs to the technical field of metal plate machining. The continuous metal plate punching and forming integrated equipment comprises a base frame, and a plate lifting and bending mechanism is arranged at the left end of the base frame; a dual-mode limiting mechanism is arranged on the right side of the lifting plate bending mechanism; the dual-mode limiting mechanism comprises a rotary switching assembly, a bending limiting assembly, a material moving limiting assembly and an outer side limiting assembly. A follow-up material supporting mechanism is arranged on the upper side of the base frame; in this way, the positions of the bending limiting assembly and the material moving limiting assembly are changed through the rotary switching assembly; when a plate moves on the base frame in the direction of the plate lifting and bending mechanism, the material moving limiting assembly limits the plate from the inner side of the plate, the outer side limiting assembly limits the plate from the outer side of the plate, and the forming precision of the plate lifting and bending mechanism is effectively improved; in the bending process, the bending limiting assembly abuts against the to-be-bent part of the plate and the inner walls of the turnups on the two sides of the to-be-bent part at the same time, so that the plate is fastened and limited in the bending process.

Description

Technical Field

[0001] The invention relates to the technical field of metal sheet processing, and in particular to a continuous metal sheet punching and forming integrated device. Background Art

[0002] Intelligent control cabinets usually integrate various intelligent control systems and equipment, which can realize the monitoring, control and data collection of the production process; control cabinets are often made of high-quality steel plates or stainless steel and other materials, which are processed through uncoiling, leveling, punching, flanging and bending to realize the forming operation of the main structure of the cabinet.

[0003] Chinese patent CN212762136U discloses a roll forming machine, which includes a frame, an unwinder, a guide feeding mechanism, a leveling mechanism, a forming mechanism, a hydraulic punching mechanism and a shearing mechanism. The roll forming machine realizes one-time forming of the main structure of the control cabinet through the cooperation of various mechanisms. However, the roll forming machine still has the following problems: 1. In the process of bending the sheet metal upward at a right angle by lifting the plate, the position of the sheet metal is prone to deviation, and the support force of the sheet metal flap is insufficient, causing deformation at the bending part of the sheet metal, affecting product quality; 2. The main structure of the cabinet needs to be bent twice or three times before it can be formed. The upper end of the cabinet after bending is suspended and lacks support. During the sheet metal transfer process, the bent cabinet will fall onto the machine equipment, which is not only inconvenient to remove the formed cabinet from the forming equipment, but also the cabinet is easy to fall back onto the forming equipment, affecting the smooth progress of the forming operation.

[0004] Based on this, the present invention designs a continuous metal sheet punching and forming integrated equipment to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a continuous metal sheet punching and forming integrated device.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A continuous metal sheet punching and forming integrated device, comprising a base frame; The left end of the base frame is provided with a plate lifting and bending mechanism for bending the plate into shape; the right side of the plate lifting and bending mechanism is provided with a dual-mode limiting mechanism; The dual-mode limiting mechanism includes a rotary switching component, a bending limiting component, a material shifting limiting component and an outer limiting component. The rotary switching component is mounted on the upper side of the base frame. A bending limiting component is installed on the left side of the rotary switching component for limiting the flange and bending part of the sheet material when the lifting plate bending mechanism performs a bending operation. A material shifting limiting component is installed on the right side of the rotary switching component for limiting the inner side of the sheet material and its inner flange when the sheet material moves. In addition, outer limiting components for limiting the sheet material from the outer side of the sheet material are symmetrically arranged on the front and rear sides of the base frame. A follow-up supporting mechanism is provided on the upper side of the base frame, and the follow-up supporting mechanism is used to lift the sheet material after the secondary bending and to follow the support; The upper side of the base frame is also provided with a cutting mechanism for separating the bent cabinet main structure from the sheet material.

[0007] Furthermore, the plate lifting and bending mechanism includes a flap shaft, a flip plate, a bending pressure block, a bending cylinder and a material guide assembly. The flap shaft is fixedly mounted on the left end of the top of the base frame, and the right end of the flip plate is hinged to the flap shaft through a connecting piece; a bending pressure block for resisting the sheet material is fixedly mounted on the upper side of the right end of the flap shaft; the lower end of the shell of the bending cylinder is hinged to the lower side of the left end of the base frame through a hinge, and the output end of the bending cylinder is hinged to the lower end of the flip plate through a hinge seat; a plurality of material guide assemblies are evenly arranged on the upper end of the flip plate along the width direction of the sheet material.

[0008] Furthermore, the rotary switching assembly includes a bracket, a rotating shaft, a linkage plate and a switching cylinder. The bracket is symmetrically fixedly installed on the front and rear sides of the upper end of the base frame, and the rotating shaft is rotatably connected to the bracket through a bearing; the end of the rotating shaft is fixedly connected to one end of the linkage plate, and the other end of the linkage plate is hinged to the output end of the switching cylinder, and the lower end of the shell of the switching cylinder is hinged to the base frame through a hinge.

[0009] Furthermore, the bending limit assembly includes a first fixed frame, a bending stop block, a side stop block, a fixed block, a limiting inclined groove and a sliding rod, the first fixed frame is located on the left side of the rotating shaft, one end of the first fixed frame is fixedly connected to the rotating shaft, and the other end of the first fixed frame is fixedly installed with the bending stop block; a protrusion is provided at the end of the bending stop block, and the protrusion is used to press the bending part of the sheet material, so as to cooperate with the bending pressure block and the upper end surface of the base frame to bend the sheet material; side blocks are movably provided at both ends of the bending stop block; the side blocks are provided as triangular blocks for fitting with the inner side of the flange of the sheet material; fixed blocks are symmetrically fixedly installed at both ends of the bending stop block, and a limiting inclined groove is provided on the fixed block, and the sliding rod is fixedly connected to the side blocks and is limitedly slidably connected to the limiting inclined groove; in a natural state, the side blocks remain inclined and are located on the inner side of the flange of the sheet material.

[0010] Furthermore, the material shifting and limiting assembly includes a second fixed frame, a first limiting wheel, a second limiting wheel, a floating pressure roller, a connecting frame, a floating rod, a floating block and a floating spring. The second fixed frame is located on the right side of the rotating shaft, one end of the second fixed frame is fixedly connected to the rotating shaft, and a floating pressure roller for pressing down the sheet material so that the sheet material and the upper end surface of the base frame are fitted and slidably arranged in the middle part of the other end of the second fixed frame, and flanging limiting assemblies are symmetrically arranged on both sides of the other end.

[0011] Furthermore, the flange limiting assembly includes a first limiting wheel, a second limiting wheel and a connecting frame, the connecting frame is fixedly connected to the second fixed frame, the end of the connecting frame away from the second fixed frame is provided with a first limiting wheel rollingly connected to the upper side of the flange, and the lower end of the connecting frame is provided with a second limiting wheel rollingly connected to the side wall of the flange.

[0012] Furthermore, the outer limiting assembly includes a limiting cylinder and a third limiting wheel. The limiting cylinder is fixedly mounted on the top of the base frame, and the output end of the limiting cylinder is fixedly mounted with the third limiting wheel that is in rolling contact with the outer side of the sheet.

[0013] Furthermore, the follow-up supporting mechanism includes a gantry, a linear guide, a first slider, a supporting roller, a second slider, a cross plate and an electromagnet. The gantry is fixedly installed on the top of the base frame, and the linear guide is fixedly installed on the top of the gantry; the first slider is configured as a lock-type slider and is fixedly installed on the left end of the linear guide, and the supporting roller is rotatably installed on the upper end of the first slider to support the sheet after the secondary bending; the second slider is limitedly slidably connected to the linear guide, and a cross plate is fixedly installed on the upper end of the second slider, and an electromagnet is fixedly installed on the cross plate.

[0014] Furthermore, the cutting mechanism includes a through slot, a lower cutter, a lower tool holder, an upper cutter, an upper tool holder, a cross frame, a shearing cylinder and a guide rod. The base frame is provided with a through slot, the lower tool holder is fixedly connected to the base frame and is located at the lower side of the through slot, and the lower cutter is fixedly installed in the lower tool holder; the cross frame is fixedly connected to the base frame and is located at the upper side of the through slot; a shearing cylinder is fixedly installed on the upper end of the cross frame, and the output end of the shearing cylinder passes through the cross frame and is fixedly connected to the upper tool holder; an upper cutter cooperating with the lower cutter is fixedly installed in the upper tool holder; guide rods are symmetrically fixedly installed on both sides of the upper end of the upper tool holder, and the guide rods are limitedly slidably connected to the cross frame.

[0015] In order to better achieve the purpose of the present invention, the present invention also provides a forming method of a continuous metal sheet punching and forming integrated device, comprising the following steps: Step 1: The sheet material processed by the previous process enters the base frame from the right end and continues to move to the left; the turning plate is kept horizontal, and the sheet material passes through the material guide assembly; Step 2: The first limiting wheel presses down the flange, the second limiting wheel supports the flange from the inside, and the third limiting wheel supports the flange from the outside. The floating pressure roller presses the sheet material onto the upper end surface of the base frame, and the third limiting wheel limits the sheet material from the outside, thereby realizing multi-dimensional limiting of the sheet material during the transfer process of the sheet material. Step 3: When the portion of the sheet leaving the base frame reaches a set length, the switching cylinder drives the rotating shaft to rotate through the linkage plate, so that the second fixed frame rises and the first fixed frame falls, and the limiting effect of the first limiting wheel, the second limiting wheel and the floating pressure roller on the sheet is released; Step 4: During the falling process of the bending stopper, the side stopper is tilted and not blocked by the flange. After the lower end of the side stopper contacts the sheet material, the side stopper slides in the limiting inclined groove through the slide rod, so that the lower end surface of the side stopper gradually fits with the upper end surface of the sheet material, and the end of the side stopper close to the flange gradually turns over and extends into the flange, until the lower end surface of the bending stopper is completely fitted with the upper end surface of the sheet material, and the end of the side stopper also abuts against the flange corner of the sheet material, so that the bending part of the sheet material is completely limited; Step 5: The output end of the bending cylinder extends to push the flip plate, so that the flip plate turns upward and rotates 90 degrees around the flip plate axis, and the upper plane of the base frame, the bending pressure block, the bending stopper and the side stopper cooperate to bend the sheet metal 90 degrees; Step six: The forming structure of the sheet material is placed on the supporting roller and the electromagnet, and the end of the forming structure will be adsorbed and connected by the electromagnet. Then the forming structure continues to move with the feeding of the sheet material. The supporting roller supports the left end of the top of the forming structure to assist its movement, and the electromagnet achieves synchronous movement with the forming structure through the upper limit translation of the second slider on the linear guide rail, always maintaining the lifting and supporting effect on the forming structure; when the forming structure is about to move out from the supporting roller, the operator controls the electromagnet to lose its magnetism and no longer adsorb the forming structure, thereby completing the unloading of the sheet material forming structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the sheet material moves on the base frame toward the plate lifting and bending mechanism, the material moving limiting assembly limits the sheet material from the inner side of the sheet material, and the outer limiting assembly limits the sheet material from the outer side of the sheet material, thereby ensuring that the sheet material and its flange are not offset during the movement of the sheet material, and effectively improving the forming accuracy of the plate lifting and bending mechanism; When the sheet material on the plate lifting and bending mechanism reaches the set length, the positions of the bending limit assembly and the material shifting limit assembly are changed by the rotary switching assembly. The material shifting limit assembly is raised and no longer limits the sheet material. After the bending limit assembly falls, the bending limit assembly simultaneously presses against the part of the sheet material to be bent and the inner walls of the flanges on both sides of the part to be bent, so that the sheet material is fastened and limited during the bending process, which not only ensures the bending accuracy but also avoids the deformation of the flanges of the sheet material. After the cabinet is bent and formed, it is separated from the sheet material to be bent by the cutting mechanism. 2. The top of the sheet after the second bending will flip over and fall on the follow-up supporting mechanism, and then the sheet will continue to move to the left. The follow-up supporting mechanism will move synchronously with the top after the second bending to achieve the effect of supporting it, which not only avoids the deformation of the sheet after the second bending, but also facilitates the material removal work of the main structure of the cabinet after forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a three-dimensional diagram of the sheet material after one bending according to the present invention; Figure 2 This is a front view of the sheet material after one bending according to the present invention; Figure 3 This is a three-dimensional diagram of the present invention after the sheet material is hidden; Figure 4 The local stereoscopic Figure 1 ; Figure 5 It is a structural schematic diagram of a bending stopper and a side stopper when bending a material according to the present invention; Figure 6 The local stereoscopic Figure 2 ; Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0019] The numbers in the figure represent: 1. Base frame; 2. Sheet material; 3. Dual-mode limiting mechanism; 31. Rotary switching assembly; 311. Bracket; 312. Rotating shaft; 313. Linkage plate; 314. Switching cylinder; 32. Bending limiting assembly; 321. First fixed frame; 322. Bending stopper; 323. Side stopper; 324. Fixed block; 325. Limiting inclined slot; 326. Sliding rod; 33. Material transfer limiting assembly; 331. Second fixed frame; 332. First limiting wheel; 333. Second limiting wheel; 334. Floating pressure roller; 335. Connecting frame; 336. Floating rod; 337. Floating block; 338. Floating spring; 33 9. Support block; 34. Outer limit assembly; 341. Limit cylinder; 342. Third limit wheel; 4. Plate lifting and bending mechanism; 41. Flip shaft; 42. Flip plate; 43. Bending block; 44. Bending cylinder; 45. Guide roller; 46. Mounting frame; 5. Follow-up support mechanism; 51. Gantry; 52. Linear guide rail; 53. First slider; 54. Support roller; 55. Second slider; 56. Cross plate; 57. Electromagnet; 6. Cutting mechanism; 61. Through slot; 62. Lower cutter; 63. Lower knife holder; 64. Upper cutter; 65. Upper knife holder; 66. Cross frame; 67. Shearing cylinder; 68. Guide rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0022] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 7 , a continuous metal sheet punching and forming integrated equipment, comprising a base frame 1; The left end of the base frame 1 is provided with a plate lifting and bending mechanism 4 for bending the plate 2 into shape; the right side of the plate lifting and bending mechanism 4 is provided with a dual-mode limiting mechanism 3; The dual-mode limiting mechanism 3 includes a rotating switching component 31, a bending limiting component 32, a material shifting limiting component 33 and an outer limiting component 34. The rotating switching component 31 is mounted on the upper side of the base frame 1. The left side of the rotating switching component 31 is equipped with a bending limiting component 32 for limiting the flange and bending part of the sheet material 2 when the plate lifting and bending mechanism 4 performs a bending operation. The right side of the rotating switching component 31 is equipped with a material shifting limiting component 33 for limiting the inner side of the sheet material 2 and its inner flange when the sheet material 2 moves. In addition, the front and rear sides of the base frame 1 are symmetrically provided with outer limiting components 34 for limiting the sheet material 2 from the outer side of the sheet material 2. A follow-up support mechanism 5 is provided on the upper side of the base frame 1, and the follow-up support mechanism 5 is used to support the top of the sheet material 2 after the secondary bending and move with the movement of the sheet material 2; A cutting mechanism 6 for separating the bent cabinet main structure from the sheet material 2 is also provided on the upper side of the base frame 1 .

[0023] In the present invention, after the sheet material 2 has been punched, flanging, and bent grooves, it enters the base frame 1 from the right end of the base frame 1; when the sheet material 2 moves on the base frame 1 toward the plate lifting and bending mechanism 4, the material shifting limiting assembly 33 limits the sheet material 2 from the inside of the sheet material 2, and the outside limiting assembly 34 limits the sheet material 2 from the outside of the sheet material 2, thereby ensuring that the sheet material 2 and its flanging do not deviate during the movement of the sheet material 2, thereby effectively improving the forming accuracy of the plate lifting and bending mechanism 4; When the sheet material 2 on the plate lifting and bending mechanism 4 reaches the set length, the positions of the bending limit assembly 32 and the material shifting limit assembly 33 are changed by the rotating switching assembly 31, and the material shifting limit assembly 33 is raised and no longer limits the sheet material 2. After the bending limit assembly 32 falls, the bending limit assembly 32 simultaneously presses against the part of the sheet material 2 to be bent and the inner walls of the flanges on both sides of the part to be bent, and then the plate lifting and bending mechanism 4 lifts the sheet material 2 so that the plate lifting and bending mechanism 4 cooperates with the bending limit assembly 32 to bend the sheet material 2 ninety degrees, and the bending limit assembly 32 is tightened and limited during the bending process of the sheet material 2, which not only ensures the bending accuracy, but also avoids deformation of the flanges of the sheet material 2; after the cabinet is bent and formed, it is cut and separated from the sheet material 2 to be bent by the cutting mechanism 6; The top of the sheet material 2 after the secondary bending will turn over and fall on the follow-up supporting mechanism 5, and then the sheet material 2 continues to move to the left, and the follow-up supporting mechanism 5 moves synchronously with the top after the secondary bending to achieve the effect of supporting it, which not only avoids the deformation of the sheet material 2 after the secondary bending, but also facilitates the material removal work of the main structure of the cabinet after forming. The plate lifting and bending mechanism 4 includes a flap shaft 41, a flip plate 42, a bending pressure block 43, a bending cylinder 44 and a material guide assembly. The flap shaft 41 is fixedly installed on the left end of the top of the base frame 1, and the right end of the flip plate 42 is hinged to the flap shaft 41 through a connecting piece; a bending pressure block 43 for abutting against the sheet material 2 is fixedly installed on the upper side of the right end of the flap shaft 41; the lower end of the shell of the bending cylinder 44 is hinged to the lower side of the left end of the base frame 1 through a hinge, and the output end of the bending cylinder 44 is hinged to the lower end of the flip plate 42 through a hinge seat; a plurality of material guide assemblies are evenly arranged on the upper end of the flip plate 42 along the width direction of the sheet material 2; The material guide assembly includes a material guide roller 45 and a mounting frame 46. The mounting frame 46 is fixedly connected to the flap shaft 41. A plurality of material guide rollers 45 are uniformly mounted on the inner side of the mounting frame 46 along the length direction of the sheet 2 for rotation. In the present invention, the flip plate 42 of the sheet material 2 remains horizontal during the movement, and the sheet material 2 moves from right to left and passes over the guide roller 45; the output end of the bending cylinder 44 is extended to push the flip plate 42, so that the flip plate 42 is flipped and rotated ninety degrees around the flip plate axis 41 to achieve the bending and forming effect of the sheet material 2, and the bending pressure block 43 is used to cooperate with the upper plane of the base frame 1 to form a ninety-degree corner for bending the sheet material 2; during the normal material movement process of the sheet material 2, the sheet material 2 moves on the guide roller 45, reducing the friction force of the sheet material 2 during movement and facilitating the unloading of the forming structure.

[0024] The rotary switching assembly 31 includes a bracket 311, a rotating shaft 312, a linkage plate 313 and a switching cylinder 314. The bracket 311 is symmetrically fixedly mounted on the front and rear sides of the upper end of the base frame 1. The rotating shaft 312 is rotatably connected to the bracket 311 through a bearing; the end of the rotating shaft 312 is fixedly connected to one end of the linkage plate 313, and the other end of the linkage plate 313 is hinged to the output end of the switching cylinder 314, and the lower end of the shell of the switching cylinder 314 is hinged to the base frame 1 through a hinge. The bending limit assembly 32 includes a first fixed frame 321, a bending stop block 322, a side stop block 323, a fixed block 324, a limiting inclined groove 325 and a sliding rod 326. The first fixed frame 321 is located on the left side of the rotating shaft 312, one end of the first fixed frame 321 is fixedly connected to the rotating shaft 312, and the other end of the first fixed frame 321 is fixedly installed with a bending stop block 322; a protrusion is provided at the end of the bending stop block 322, and the protrusion is used to press the bending part of the sheet 2, so as to cooperate with the bending pressure block 43 and the upper end surface of the base frame 1 to bend the sheet 2; side stops 323 are movably provided at both ends of the bending stop block 322; the side stops 323 are set as triangular blocks for fitting with the inner side of the flange of the sheet 2, and the ends of the triangular blocks press the flange when the sheet 2 is bent to avoid deformation of the flange; The two ends of the bending stopper 322 are symmetrically fixed with fixed blocks 324, and the fixed blocks 324 are provided with limited inclined grooves 325. The slide rod 326 is fixedly connected to the side stopper 323 and is limitedly slidably connected to the limited inclined grooves 325. In the natural state, the side stopper 323 remains inclined so as to be located on one side of the flange of the sheet 2. The material shifting and limiting assembly 33 comprises a second fixed frame 331, a first limiting wheel 332, a second limiting wheel 333, a floating pressure roller 334, a connecting frame 335, a floating rod 336, a floating block 337 and a floating spring 338. The second fixed frame 331 is located on the right side of the rotating shaft 312. One end of the second fixed frame 331 is fixedly connected to the rotating shaft 312. The middle part of the other end of the second fixed frame 331 is provided with a floating pressure roller 334 for pressing down the sheet material 2 so that the sheet material 2 and the upper end surface of the base frame 1 are fitted and slidable. The flanging limiting assemblies are symmetrically provided on both sides of the other end. The flange limiting assembly includes a first limiting wheel 332, a second limiting wheel 333 and a connecting frame 335. The connecting frame 335 is fixedly connected to the second fixing frame 331. The end of the connecting frame 335 away from the second fixing frame 331 is provided with a first limiting wheel 332 that is rollingly connected to the upper side of the flange. The lower end of the connecting frame 335 is provided with a second limiting wheel 333 that is rollingly connected to the side wall of the flange. The two ends of the rotating shaft of the floating pressure roller 334 are rotatably connected with the floating block 337, and a floating rod 336 is fixedly installed on the upper end of the floating block 337; a support block 339 that is limitedly slidably connected with the floating rod 336 is fixedly installed on the second fixed frame 331; a floating spring 338 is sleeved on the outer side of the floating rod 336, and the two ends of the floating spring 338 are respectively fixedly connected with the floating block 337 and the support block 339; the floating rod 336 slides on the support block 339, and under the expansion and contraction action of the floating spring 338, the floating pressure roller 334 can limit the sheet 2 on the upper end surface of the base frame 1, thereby ensuring the accurate material transfer of the sheet 2; The outer limiting assembly 34 includes a limiting cylinder 341 and a third limiting wheel 342. The limiting cylinder 341 is fixedly mounted on the top of the base frame 1. The output end of the limiting cylinder 341 is fixedly mounted with the third limiting wheel 342 that is in rolling contact with the outer side of the sheet 2. In the present invention, by controlling the extension and retraction of the output end of the switching cylinder 314, the rotation of the rotating shaft 312 can be controlled under the linkage action of the linkage plate 313, thereby switching different limiting modes for the sheet material 2; When the sheet material 2 is being moved, the first limiting wheel 332 presses down the flange, the second limiting wheel 333 supports the flange from the inside, the third limiting wheel 342 supports the flange from the outside, and the floating pressure roller 334 presses the sheet material 2 on the upper end surface of the base frame 1, thereby achieving a multi-dimensional limiting effect on the sheet material 2, ensuring the precise transfer effect of the sheet material 2, and thus ensuring the bending accuracy of the sheet material 2; When the sheet 2 is bent, the rotating shaft 312 rotates clockwise to lift the second fixing frame 331, releasing the limiting effect of the first limiting wheel 332, the second limiting wheel 333 and the floating pressure roller 334 on the sheet 2, and the first fixing frame 321 falls to make the bending stop block 322 move downward until the bending stop block 322 is tightly pressed against the part of the sheet 2 to be bent, and during the falling process of the bending stop block 322, the side stop block 323 is tilted without being blocked by the flange, and after the lower end of the side stop block 323 contacts the sheet 2, the side stop block 323 is moved in The limiting inclined groove 325 slides so that the lower end surface of the side block 323 gradually fits with the upper end surface of the sheet 2, and the end of the side block 323 close to the flange gradually flips over and extends into the flange until the lower end surface of the bending block 322 is completely fitted with the upper end surface of the sheet 2, and the end of the side block 323 also presses against the flange corner of the sheet 2, thereby completely limiting the bending part of the sheet 2, so that after the flip plate 42 is lifted, the bending pressure block 43, the bending block 322 and the side block 323 cooperate to bend the sheet 2 ninety degrees, thereby achieving precise forming of the sheet 2.

[0025] The follow-up support mechanism 5 includes a gantry 51, a linear guide 52, a first slider 53, a support roller 54, a second slider 55, a cross plate 56 and an electromagnet 57. The gantry 51 is fixedly installed on the top of the base frame 1, and the linear guide 52 is fixedly installed on the top of the gantry 51; the first slider 53 is set as a lock-type slider and fixedly set on the left end of the linear guide 52, and the support roller 54 is rotatably installed on the upper end of the first slider 53 to support the sheet 2 after the secondary bending; the second slider 55 is limitedly slidably connected with the linear guide 52, and the upper end of the second slider 55 is fixedly installed with a cross plate 56, and the cross plate 56 is fixedly installed with an electromagnet 57; the electromagnet 57 adopts an energized electromagnet; In the present invention, after the sheet material 2 is bent twice or three times, the bent forming structure of the sheet material 2 will be placed on the supporting roller 54 and the electromagnet 57, and the end of the forming structure will be adsorbed and connected by the electromagnet 57, and then the forming structure will continue to move with the feeding of the sheet material 2, and the supporting roller 54 supports the left end of the top of the forming structure to assist its movement, and the electromagnet 57 is limited by the second slider 55 and translated on the linear guide rail 52 to achieve synchronous movement with the forming structure, thereby always maintaining the lifting and supporting effect on the forming structure; when the forming structure is about to move out from the supporting roller 54, the operator controls the electromagnet 57 to lose its magnetism and no longer adsorb the forming structure, so that the forming structure can be unloaded smoothly.

[0026] Embodiment 2: In some embodiments, Figure 3 and Figure 6As shown in the figure, as a preferred embodiment of the present invention, the cutting mechanism 6 includes a through slot 61, a lower cutter 62, a lower knife holder 63, an upper cutter 64, an upper knife holder 65, a cross frame 66, a shearing cylinder 67 and a guide rod 68. The base frame 1 is provided with a through slot 61, the lower knife holder 63 is fixedly connected to the base frame 1 and is located at the lower side of the through slot 61, and the lower cutter 62 is fixedly installed in the lower knife holder 63; the cross frame 66 is fixedly connected to the base frame 1 and is located at the upper side of the through slot 61; the upper end of the cross frame 66 is fixedly installed with a shearing cylinder 67, and the output end of the shearing cylinder 67 passes through the cross frame 66 and the upper The knife holder 65 is fixedly connected; an upper cutter 64 cooperating with the lower cutter 62 is fixedly installed in the upper knife holder 65; guide rods 68 are symmetrically fixedly installed on both sides of the upper end of the upper knife holder 65, and the guide rods 68 are limited and slidably connected with the cross frame 66; the length of the lower cutter 62 and the lower knife holder 63 is greater than the width of the sheet 2; when the sheet 2 is bent and formed, the shear cylinder 67 drives the upper knife holder 65 to move vertically downward under the limiting action of the guide rod 68, and the cutting and segmenting operation of the sheet 2 is realized through the cooperation of the upper cutter 64 and the lower cutter 62, and the sheet 2 is cut at one time, and the cutting efficiency is high.

[0027] Embodiment 3: In some embodiments, Figure 1-Figure 7 As shown, as a preferred embodiment of the present invention, a forming method of a continuous metal sheet punching and forming integrated device comprises the following steps: Step 1: The sheet material 2 processed by the previous process enters the base frame 1 from the right end of the base frame 1 and continues to move to the left; the turning plate 42 remains horizontal, and the sheet material 2 passes over the guide roller 45; Step 2: The first limiting wheel 332 presses down the flange, the second limiting wheel 333 supports the flange from the inside, and the third limiting wheel 342 supports the flange from the outside. The floating pressure roller 334 presses the sheet 2 on the upper end surface of the base frame 1, and the third limiting wheel 342 limits the sheet 2 from the outside, thereby realizing multi-dimensional limiting of the sheet 2 during the transfer process of the sheet 2; Step 3: When the portion of the sheet 2 leaving the base frame 1 reaches a set length, the switching cylinder 314 drives the rotating shaft 312 to rotate through the linkage plate 313, so that the second fixing frame 331 rises and the first fixing frame 321 falls, and the limiting effect of the first limiting wheel 332, the second limiting wheel 333 and the floating pressure roller 334 on the sheet 2 is released; Step 4: During the falling process of the bending stopper 322, the side stopper 323 is tilted without being blocked by the flange. After the lower end of the side stopper 323 contacts the sheet 2, the side stopper 323 slides in the limiting inclined groove 325 through the sliding rod 326, so that the lower end surface of the side stopper 323 gradually fits the upper end surface of the sheet 2, and the end of the side stopper 323 close to the flange gradually turns over and extends into the flange, until the lower end surface of the bending stopper 322 is completely fitted with the upper end surface of the sheet 2, the end of the side stopper 323 also abuts against the flange corner of the sheet 2, so that the bending part of the sheet 2 is completely limited; Step 5: The output end of the bending cylinder 44 extends to push the flip plate 42, so that the flip plate 42 flips up and rotates ninety degrees around the flip plate axis 41, and the upper plane of the base frame 1, the bending pressure block 43, the bending stopper 322 and the side stopper 323 cooperate to bend the sheet 2 ninety degrees; Step six: The forming structure of the sheet 2 is placed on the supporting roller 54 and the electromagnet 57, and the end of the forming structure will be adsorbed and connected by the electromagnet 57, and then the forming structure continues to move with the feeding of the sheet 2. The supporting roller 54 supports the left end of the top of the forming structure to assist its movement, and the electromagnet 57 is limited by the second slider 55 on the linear guide rail 52 to achieve synchronous movement with the forming structure, always maintaining the lifting and supporting effect on the forming structure; when the forming structure is about to move out from the supporting roller 54, the operator controls the electromagnet 57 to lose its magnetism and no longer adsorb the forming structure, thereby completing the unloading of the forming structure of the sheet 2.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A continuous metal sheet punching and forming integrated device, comprising a base frame (1), characterized in that: The left end of the base frame (1) is provided with a plate lifting and bending mechanism (4) for bending the plate material (2) into shape; the right side of the plate lifting and bending mechanism (4) is provided with a dual-mode limiting mechanism (3); The dual-mode limiting mechanism (3) comprises a rotary switching component (31), a bending limiting component (32), a material shifting limiting component (33) and an outer limiting component (34); the rotary switching component (31) is mounted on the upper side of the base frame (1); the left side of the rotary switching component (31) is provided with a bending limiting component (32) for limiting the flange and the bending part of the sheet material (2) when the plate lifting and bending mechanism (4) performs a bending operation; the right side of the rotary switching component (31) is provided with a material shifting limiting component (33) for limiting the inner side of the sheet material (2) and its inner flange when the sheet material (2) moves; and the front and rear sides of the base frame (1) are symmetrically provided with outer limiting components (34) for limiting the sheet material (2) from the outer side. A follow-up material support mechanism (5) is provided on the upper side of the base frame (1), and the follow-up material support mechanism (5) is used to support the sheet material (2) after secondary bending and to follow the material support; The upper side of the base frame (1) is also provided with a cutting mechanism (6) for separating the bent cabinet main structure from the sheet material (2).

2. The continuous metal sheet punching and forming integrated equipment according to claim 1 is characterized in that: The plate lifting and bending mechanism (4) comprises a flap shaft (41), a flip plate (42), a bending pressure block (43), a bending cylinder (44) and a material guide assembly, wherein the flap shaft (41) is fixedly mounted on the left end of the top of the base frame (1), and the right end of the flip plate (42) is hinged to the flap shaft (41) through a connecting piece; a bending pressure block (43) for abutting against the sheet material (2) is fixedly mounted on the upper side of the right end of the flap shaft (41); the lower end of the shell of the bending cylinder (44) is hinged to the lower side of the left end of the base frame (1) through a hinge, and the output end of the bending cylinder (44) is hinged to the lower end of the flip plate (42) through a hinge seat; a plurality of material guide assemblies are evenly arranged on the upper end of the flip plate (42) along the width direction of the sheet material (2).

3. The continuous metal sheet punching and forming integrated equipment according to claim 2, characterized in that: The rotary switching assembly (31) comprises a bracket (311), a rotating shaft (312), a linkage plate (313) and a switching cylinder (314); the bracket (311) is symmetrically fixedly mounted on the front and rear sides of the upper end of the base frame (1); the rotating shaft (312) is rotatably connected to the bracket (311) via a bearing; the end of the rotating shaft (312) is fixedly connected to one end of the linkage plate (313); the other end of the linkage plate (313) is hinged to the output end of the switching cylinder (314); and the lower end of the shell of the switching cylinder (314) is hinged to the base frame (1) via a hinge.

4. The continuous metal sheet punching and forming integrated equipment according to claim 3 is characterized in that: The bending limit assembly (32) comprises a first fixed frame (321), a bending stopper (322), a side stopper (323), a fixed block (324), a limit inclined groove (325) and a slide bar (326); the first fixed frame (321) is located on the left side of the rotating shaft (312); one end of the first fixed frame (321) is fixedly connected to the rotating shaft (312); the other end of the first fixed frame (321) is fixedly mounted with the bending stopper (322); a protruding portion is provided at the end of the bending stopper (322), and the protruding portion is used to press the bending portion of the sheet material (2) so as to cooperate with the bending pressing block (43). The upper end of the base frame (1) is bent toward the sheet material (2); both ends of the bending block (322) are movably provided with side blocks (323); the side blocks (323) are configured as triangular blocks for fitting with the inner side of the flange of the sheet material (2); fixed blocks (324) are symmetrically fixedly installed at both ends of the bending block (322), and a limiting inclined groove (325) is provided on the fixed block (324); the sliding rod (326) is fixedly connected to the side block (323) and is limitedly slidably connected to the limiting inclined groove (325); in a natural state, the side block (323) remains inclined and is located on the inner side of the flange of the sheet material (2).

5. The continuous metal sheet punching and forming integrated equipment according to claim 4 is characterized in that: The material shifting and limiting assembly (33) comprises a second fixed frame (331), a first limiting wheel (332), a second limiting wheel (333), a floating pressure roller (334), a connecting frame (335), a floating rod (336), a floating block (337) and a floating spring (338); the second fixed frame (331) is located on the right side of the rotating shaft (312); one end of the second fixed frame (331) is fixedly connected to the rotating shaft (312); a floating pressure roller (334) for pressing down the sheet material (2) so that the sheet material (2) and the upper end surface of the base frame (1) are fitted and slidably arranged in the middle of the other end of the second fixed frame (331); and flanging limiting assemblies are symmetrically arranged on both sides of the other end.

6. The continuous metal sheet punching and forming integrated equipment according to claim 5, characterized in that: The flange limiting assembly comprises a first limiting wheel (332), a second limiting wheel (333) and a connecting frame (335); the connecting frame (335) is fixedly connected to the second fixing frame (331); one end of the connecting frame (335) away from the second fixing frame (331) is provided with a first limiting wheel (332) rollingly connected to the upper side of the flange; and the lower end of the connecting frame (335) is provided with a second limiting wheel (333) rollingly connected to the side wall of the flange.

7. The continuous metal sheet punching and forming integrated equipment according to claim 6, characterized in that: The outer limiting assembly (34) comprises a limiting cylinder (341) and a third limiting wheel (342); the limiting cylinder (341) is fixedly mounted on the top of the base frame (1); and the output end of the limiting cylinder (341) is fixedly mounted with the third limiting wheel (342) which is in rolling contact with the outer side of the sheet material (2).

8. The continuous metal sheet punching and forming integrated equipment according to claim 7, characterized in that: The follow-up support mechanism (5) comprises a gantry (51), a linear guide rail (52), a first slider (53), a support roller (54), a second slider (55), a transverse plate (56) and an electromagnet (57). The gantry (51) is fixedly mounted on the top of the base frame (1), and the linear guide rail (52) is fixedly mounted on the top of the gantry (51); the first slider (53) is configured as a lock-type slider and is fixedly mounted on the left end of the linear guide rail (52); the support roller (54) is rotatably mounted on the upper end of the first slider (53) to support the sheet material (2) after secondary bending; the second slider (55) is limitedly slidably connected to the linear guide rail (52), the upper end of the second slider (55) is fixedly mounted with a transverse plate (56), and the transverse plate (56) is fixedly mounted with an electromagnet (57).

9. The continuous metal sheet punching and forming integrated equipment according to claim 8, characterized in that: The cutting mechanism (6) comprises a through slot (61), a lower cutting knife (62), a lower knife holder (63), an upper cutting knife (64), an upper knife holder (65), a cross frame (66), a shearing cylinder (67) and a guide rod (68); a through slot (61) is provided on the base frame (1); the lower knife holder (63) is fixedly connected to the base frame (1) and is located at the lower side of the through slot (61); the lower cutting knife (62) is fixedly installed in the lower knife holder (63); the cross frame (66) is connected to the base frame (1) and is fixedly connected to the lower knife holder (63); ) is fixedly connected and located on the upper side of the through groove (61); a shearing cylinder (67) is fixedly installed on the upper end of the cross frame (66), and the output end of the shearing cylinder (67) passes through the cross frame (66) and is fixedly connected to the upper knife frame (65); an upper cutter (64) cooperating with the lower cutter (62) is fixedly installed in the upper knife frame (65); guide rods (68) are symmetrically fixedly installed on both sides of the upper end of the upper knife frame (65), and the guide rods (68) are limitedly slidably connected to the cross frame (66).

10. A metal sheet forming method, using the continuous metal sheet punching and forming integrated device according to claim 9, characterized in that: The following steps are involved: Step 1: the sheet material (2) processed by the previous process enters the base frame (1) from the right end of the base frame (1) and continues to move to the left; the turning plate (42) is kept horizontal, and the sheet material (2) passes through the material guide assembly; Step 2: The first limiting wheel (332) presses down the flange, the second limiting wheel (333) supports the flange from the inside, and the third limiting wheel (342) supports the flange from the outside, the floating pressure roller (334) presses the sheet material (2) onto the upper end surface of the base frame (1), and the third limiting wheel (342) limits the sheet material (2) from the outside, thereby achieving multi-dimensional limiting of the sheet material (2) during the transfer process of the sheet material (2); Step 3: When the portion of the sheet material (2) leaving the base frame (1) reaches a set length, the switching cylinder (314) drives the rotating shaft (312) to rotate through the linkage plate (313), so that the second fixed frame (331) rises and the first fixed frame (321) falls, thereby releasing the limiting effect of the first limiting wheel (332), the second limiting wheel (333) and the floating pressure roller (334) on the sheet material (2); Step 4: During the falling process of the bending stopper (322), the side stopper (323) is tilted and not blocked by the flange. After the lower end of the side stopper (323) contacts the sheet material (2), the side stopper (323) slides in the limiting inclined groove (325) through the slide rod (326), so that the lower end surface of the side stopper (323) gradually fits with the upper end surface of the sheet material (2), and the end of the side stopper (323) close to the flange gradually turns over and extends into the flange, until the lower end surface of the bending stopper (322) is completely fitted with the upper end surface of the sheet material (2), the end of the side stopper (323) also abuts against the flange corner of the sheet material (2), so that the bending part of the sheet material (2) is completely limited; Step 5: The output end of the bending cylinder (44) is extended to push the flip plate (42), so that the flip plate (42) is flipped and rotated ninety degrees around the flip plate axis (41), and the upper plane of the base frame (1), the bending pressure block (43), the bending stopper (322) and the side stopper (323) cooperate to bend the sheet material (2) ninety degrees; Step six: The forming structure of the sheet material (2) is placed on the supporting roller (54) and the electromagnet (57), and the end of the forming structure will be adsorbed and connected by the electromagnet (57). Then, the forming structure continues to move with the feeding of the sheet material (2). The supporting roller (54) supports the left end of the top of the forming structure to assist its movement, and the electromagnet (57) is moved synchronously with the forming structure through the upper limit of the second slider (55) on the linear guide rail (52), always maintaining the lifting and supporting effect on the forming structure; when the forming structure is about to move out from the supporting roller (54), the operator controls the electromagnet (57) to lose its magnetism and no longer adsorb the forming structure, thereby completing the unloading of the sheet material (2) forming structure.

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