A metal sheet bending forming device

Abstract

The present invention discloses a bending and forming device for metal sheets, which relates to the technical field of bending devices. The device comprises a base, a pressing unit and a bending plate, wherein a supporting block is provided on the pressure plate on the base; the pressing unit comprises a vertical pressing plate, a supporting plate, a horizontal pressing plate and a fixing ring, wherein the vertical pressing plate is provided on the fixing ring, the supporting plate is located between the vertical pressing plates and is provided below the fixing ring through an elastic component, and the horizontal pressing plate is provided below the supporting plate; the bending plate is located on one side of the supporting block, the bending plate is deflected away from the supporting block, an ear plate is fixed on the bending plate, the ear plate on the bending plate is rotatably connected to the fixing plate on the supporting block, a rotating wheel is provided on the vertical pressing plate, the rotating wheel corresponds to the ear plate on the bending plate, a roller is rotatably connected to the bottom end of the vertical pressing plate, and when the vertical pressing plate bends the steel sheet, the roller is coaxially arranged with the rotation center of the bending plate. The present invention can solve the problem of large wear between the steel sheet and the mold when the existing bending equipment produces an "X"-shaped workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of bending equipment, and in particular to a bending and forming equipment for metal plates. Background Art

[0002] A bending machine is a machine that can bend thin plates. It uses a relatively simple universal mold to form metal plates into a certain geometric shape. With the rapid development of industrial technology, it has been widely used in industrial sectors such as electrical appliances, metal structures, instruments and meters, daily hardware, and building materials.

[0003] Since a large number of angled steel plates and I-shaped steel plates are needed in the production process of electrical boxes and cabinets, bending machines are indispensable equipment in the manufacturing and processing of electrical boxes and cabinets.

[0004] When existing bending equipment processes an "X"-shaped workpiece, it typically places a steel plate directly on an "X"-shaped mold. Then, a press block adapted to the mold presses the steel plate directly onto the mold to form the "X"-shaped workpiece. However, during the pressing process, significant wear occurs between the steel plate and the mold. This wear not only affects the dimensional accuracy of the formed workpiece, but also the forming accuracy and service life of the mold. Summary of the Invention

[0005] The invention provides a bending and forming device for metal plates, which solves the problem of large wear between the steel plate and the die when the existing bending device produces an "X"-shaped workpiece.

[0006] The present invention provides a metal sheet bending and forming device that adopts the following technical solution:

[0007] A metal sheet bending forming equipment includes a base, a pressing unit and a bending plate, the base is provided with a pressure plate, and the pressure plate is penetrated by a top support block; the pressing unit includes a vertical pressing plate, a support plate, a horizontal pressing plate and a fixing ring, the vertical pressing plate is installed at both ends of the fixing ring, the support plate is arranged above the base through a power output mechanism, and is arranged below the fixing ring through an elastic component, the support plate is slidably connected between the vertical pressing plates along the height direction of the vertical pressing plates, the horizontal pressing plate is located between the vertical pressing plates and is arranged below the support plates through a vertical sliding component, the horizontal pressing plate The end of the plate is in contact with the vertical pressing plate; the bending plate is provided with two pieces, and the two bending plates are respectively located on both sides of the top support block, and the deflection direction of the bending plate is away from the top support block. Two ear plates are fixed on one side of the deflection of the bending plate, and the two ear plates are close to the two ends of the bending plate respectively; fixed plates are installed at both ends of the top support block, and the two ear plates on the bending plate are rotatably connected to the fixed plates at both ends of the top support block respectively, and running wheels are installed at both ends of the vertical pressing plate, and the two running wheels correspond to the two ear plates on the bending plate respectively, and the bottom end of the vertical pressing plate is rotatably connected to a roller parallel to the length direction of the vertical pressing plate;

[0008] The vertical sliding assembly includes a movable shaft and a fixed cylinder. The movable shaft is fixed to the top of the horizontal pressure plate, and the fixed cylinder is installed on the top of the support plate. The end of the movable shaft away from the horizontal pressure plate passes through the support plate and the top cover of the fixed cylinder. The end of the movable shaft away from the horizontal pressure plate is provided with a limiter, which is used to prevent the movable shaft from detaching from the top cover of the fixed cylinder.

[0009] When the vertical pressing plate is bending the steel plate, the vertical pressing plate is inserted between the corresponding two ear plates, and the rotating wheel is in contact with the upper surface of the corresponding ear plate. The roller is coaxially arranged with the rotation center of the bending plate. When the bending plate rotates, the roller is always coaxially arranged with the rotation center of the bending plate.

[0010] Furthermore, the elastic component includes a first limiting shaft and a first spring. The first limiting shaft is fixed on the support plate. The end of the first limiting shaft away from the support plate passes through the annular surface of the fixing ring. The first spring is sleeved on the first limiting shaft, and the two ends of the first spring are respectively in contact with the support plate and the fixing ring.

[0011] Furthermore, a slip limiter assembly is provided between the support plate and the vertical pressure plate. The slip limiter assembly includes a limit slot opened at the end of the vertical pressure plate and a limit block fixed on the support plate. The limit slot is adapted to the limit block. The limit block is inserted into the limit slot and can slide along the length direction of the limit slot.

[0012] Furthermore, one end of the movable shaft fixed to the horizontal pressing plate is a cylindrical end, the inner cylinder of the fixed cylinder is adapted to the cylindrical end, and a push assembly capable of shaping the horizontal pressing plate and the vertical pressing plate is provided between the cylindrical end and the vertical pressing plate;

[0013] The push assembly includes a push block, a push plate and a conical surface. A push hole is provided on the side of the fixed cylinder. The push block is slidably arranged in the push hole. The top surface of the cylindrical end is a conical surface. The side of the push block away from the vertical pressure plate is an inclined surface adapted to the conical surface. A push groove is provided on the side of the vertical pressure plate facing the push hole. The length direction of the push groove is parallel to the axial direction of the fixed cylinder. The push plate is fixed at the bottom of the push groove. The sides facing each other of the push plate and the push block are friction surfaces.

[0014] Furthermore, a reset groove is provided on the inner wall of the push hole, a push piece is fixed on the side wall of the push block, the push piece is inserted into the reset groove and can slide along the length direction of the reset groove, and a reset spring is connected between the bottom of the reset groove and the push piece.

[0015] Furthermore, a through hole is provided on the pressure plate, and the support block is passed through the through hole by an elastic support mechanism. The elastic support mechanism includes a second limiting shaft fixed to the bottom of the support block and a second spring sleeved on the second limiting shaft. The end of the second limiting shaft away from the support block passes through the top end plate of the base, and the two ends of the second spring are respectively connected to the pressure plate and the top end plate of the base.

[0016] Furthermore, the top support block includes a U-shaped block and a T-shaped block, the U-shaped block is inserted into the through hole, the second limiting shaft is fixed to the outer bottom surface of the U-shaped block, the two ends of the second spring are respectively connected to the U-shaped block and the top end plate of the base, one end of the T-shaped block is inserted into the inner groove of the U-shaped block and is rotatably connected to a stud, the end of the stud away from the T-shaped block passes through the inner bottom surface of the U-shaped block and is threadedly connected to the U-shaped block, a handwheel is installed on one end of the stud passing through the U-shaped block, and the fixing plate is fixed to the U-shaped block;

[0017] An arc groove is provided on the side of the U-shaped block, and the arc groove is used to maintain the rotation of the bent plate between the fixed plates.

[0018] Furthermore, the power output mechanism includes a connecting rod, a clamping plate, a receiving plate and an external power device, the connecting rod is fixed on the top of the support plate, the receiving plate is installed at the bottom of the output end of the external power device and is arranged above the base, the clamping plate is installed on one side of the receiving plate through a clamping assembly, and an abutment plate is fixed on the side of the receiving plate away from the clamping plate, the connecting rod is inserted into the clamping groove formed by the clamping plate and the abutment plate and is fastened in the clamping groove through the clamping assembly.

[0019] Furthermore, the clamping assembly includes an eccentric block and a lever, a clamping hole is opened on a side of the clamping plate away from the receiving plate, the eccentric block is rotatably set in the clamping hole, and the lever is fixed on the eccentric block.

[0020] The beneficial effects of the present invention are:

[0021] The present invention provides a bending and forming device for metal sheets. When the present invention is in operation, the support plate can be pressed toward the sheet to be bent under the drive of the power output mechanism, thereby causing the vertical pressure plate to be pressed toward the sheet to be bent. In the process of bending the sheet to be bent, the rotating wheel arranged at the end of the vertical pressure plate can be against the ear plate of the bending plate, and the roller arranged at the end of the vertical pressure plate can be coaxially arranged with the rotation center axis of the bending plate. When the vertical pressure plate continues to press downward, the top support block will gradually move downward, thereby causing the bending plate to rotate. When the bending plate rotates, it can bend the sheet to be bent. Since the rotation center axis of the bending plate is coaxially arranged with the roller, the roller can reduce the friction force overcome by the sheet to be bent when it is bent at the bottom end of the vertical pressure plate, thereby reducing the wear between the sheet to be bent and the vertical pressure plate.

[0022] Furthermore, in the present invention, the staff can adjust the height of the T-block within the U-block by turning the hand wheel, thereby enabling the bending of the "X"-shaped workpieces of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic structural diagram of a metal sheet bending and forming device provided by an embodiment of the present invention when no sheet to be bent is provided;

[0025] Figure 2 A schematic structural diagram of a metal sheet bending and forming device provided by an embodiment of the present invention when a pressing unit and a power output mechanism are separated;

[0026] Figure 3 A schematic diagram of a partially exploded structure of a metal sheet bending and forming device provided by an embodiment of the present invention;

[0027] Figure 4 A front view of a metal sheet bending and forming device provided in an embodiment of the present invention;

[0028] Figure 5 For Figure 4 A schematic cross-sectional view of the power take-off mechanism and the pressing unit when the power take-off mechanism is separated from the pressing unit, taken in the middle AA direction;

[0029] Figure 6 For Figure 4 Schematic diagram of the cross-sectional structure of the horizontal and vertical platens in the middle AA direction when they are just finalized;

[0030] Figure 7 For Figure 4 Schematic diagram of the cross-sectional structure of the plate after bending in the AA direction;

[0031] Figure 8 For Figure 4 Schematic diagram of the cross-sectional structure in the AA direction when the T-block extends out of the inner groove of the U-block and the sheet is bent;

[0032] Figure 9 For Figure 4 Schematic diagram of the cross-sectional structure when the push block is pressed against the push plate in the middle BB direction.

[0033] In the figure: 100, base; 110, pressure plate; 200, pressing unit; 210, vertical pressure plate; 211, roller; 212, rotating wheel; 220, support plate; 230, horizontal pressure plate; 240, fixing ring; 300, bending plate; 310, straight plate section; 320, arc plate section; 330, ear plate; 340, roller; 400, top support block; 401, fixing plate; 410, U-shaped block; 420, T-shaped block; 411, stud; 412, handwheel; 413, arc groove; 500, power take-off unit Structure; 510, connecting rod; 520, clamping plate; 530, receiving plate; 531, abutment plate; 540, external power device; 600, vertical sliding assembly; 610, movable shaft; 611, limiting member; 612, cylindrical end; 620, fixed cylinder; 800, push assembly; 810, push block; 820, push plate; 830, conical surface; 801, push hole; 802, push piece; 803, return spring; 900, clamping assembly; 910, eccentric push block; 920, pull rod; 901, clamping hole. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0035] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] like Figures 1 to 3 As shown, an embodiment of the present invention provides a sheet metal bending and forming device, comprising a base 100, a pressing unit 200, and a bending plate 300. The base 100 is a double-layer base, with a pressure plate 110 mounted parallel to the top end plate of the base 100 via a column. The pressure plate 110 has a strip-shaped through-hole at its center, and a support block 400 is disposed within the through-hole. The support block 400 is a long strip-shaped block that fits the through-hole.

[0038] The pressing unit 200 includes a vertical pressing plate 210, a support plate 220, a horizontal pressing plate 230, and a fixing ring 240. The fixing ring 240 is an annular plate parallel to the pressure plate 110. The vertical pressing plates 210 are mounted on both ends of the fixing ring 240. The plate surfaces of the two vertical pressing plates 210 are perpendicular to the plate surface of the pressure plate 110.

[0039] The support plate 220 is parallel to the pressure plate 110. The support plate 220 is set above the base 100 through the power output mechanism 500, and is set below the fixed ring 240 through the elastic component. The support plate 220 is located between the vertical pressure plates 210 at both ends of the fixed ring 240 and is slidably connected between the vertical pressure plates 210 along the height direction of the vertical pressure plates 210.

[0040] The horizontal pressing plate 230 is located between the vertical pressing plates 210 and is disposed below the support plate 220 through a vertical sliding assembly 600 . The two ends of the horizontal pressing plate 230 are in contact with the vertical pressing plates 210 on both sides thereof.

[0041] Two bent plates 300 are provided, one on each side of the supporting block 400. The bottom ends of both bent plates 300 contact the pressure plate 110. The bent plate 300 includes a straight plate section 310 and a curved plate section 320. The curved plate section 320 is fixed to the bottom end of the straight plate section 310 and is bent away from the supporting block 400. Two lugs 330 are fixed to one side of the bent plate 300. The two lugs 330 are parallel to each other and perpendicular to the plate surface of the bent plate 300. The two lugs 330 are located near each end of the bent plate 300, specifically near the end of the straight plate section 310 away from the curved plate section 320. The top end surfaces of the lugs 330 are flush with the top end surface of the bent plate 300. The side of the lugs 330 away from the bent plate 300 is a semicircular arc surface.

[0042] A fixed plate 401 is installed at both ends of the top support block 400, and the two fixed plates 401 are parallel to each other. The two ear plates 330 on the bending plate 300 are rotatably connected to the fixed plates 401 at both ends of the top support block 400. A rotating wheel 212 is installed at both ends of the vertical pressure plate 210, and the two rotating wheels 212 correspond to the two ear plates 330 connected to the bending plate 300. The vertical pressure plate 210 can be inserted between the two ear plates 330 on the bending plate 300, and the rotating wheel 212 can abut against the upper end surface of the ear plate 330. The bottom end of the vertical pressure plate 210 is rotatably connected to a roller 211 parallel to the length direction of the vertical pressure plate 210. The plane formed by the central axis of the roller 211 and the central axis of the rotating wheel 212 is parallel to the inner plate surface of the vertical pressure plate 210.

[0043] When the vertical platen 210 is bending a steel plate, the vertical platen 210 can be inserted between the corresponding two lug plates 330, and the rotating wheel 212 can abut against the upper surface of the corresponding lug plate 330. When the rotating wheel 212 abuts against the upper surface of the lug plate 330, the roller 211 is coaxially arranged with the rotation center of the bending plate 300, and when the bending plate 300 rotates, the roller 211 can always remain coaxial with the rotation center of the bending plate 300.

[0044] The operating principle of the present invention is:

[0045] like Figures 4 to 7 As shown, first, the plate 300 to be bent is placed on the top support block 400, and then the support plate 220 is driven by the power output mechanism 500 to approach the plate 300 to be bent. In the process of the support plate 220 approaching the plate 300 to be bent, the vertical pressing plate 210 first contacts the plate 300 to be bent. As the support plate 220 continues to press downward, the vertical pressing plate 210 gradually presses the plate 300 to be bent through the elastic component until the plate is bent. At this time, the plate 300 to be bent will form a U-shaped plate on the top support block 400. As the vertical pressing plate 210 continues to press downward, the horizontal pressing plate 230 can gradually press on the upper top surface of the plate.

[0046] After that, as the support plate 220 continues to press down, the runner 212 on the support plate 220 can abut against the ear plate 330 on the bending plate 300. When the vertical pressing plate 210 abuts against the ear plate 330, the vertical pressing plate 210 no longer moves downward. However, since the support plate 220 continues to move downward under the action of the power output mechanism 500, therefore, under the action of the support plate 220 and the vertical pressing plate 210, the top support block 400 gradually moves downward. During the process of the top support block 400 moving downward, the bending plate 300 gradually rotates accordingly. The bending plate 300 can rotate around its rotation center, and further can continue to bend the two side plates of the U-shaped plate, so that the U-shaped plate forms a U-shaped plate;

[0047] When the bending plate 300 rotates around its rotation center until its straight plate segment 310 is completely attached to the bearing plate 110 or its straight plate segment 310 is parallel to the bearing plate 110, the production of the U-shaped workpiece is completed.

[0048] It should be noted that in the present invention, after the plate to be bent is bent into a U-shape, its two ends are located at the straight plate segments 310 of the bending plate 300, and when the runner 212 on the vertical pressing plate 210 abuts against the ear plate 330 on the bending plate 300, the rotation center axis of the bending plate 300 is always coaxially arranged with the roller 211 provided at the bottom end of the vertical pressing plate 210. Furthermore, it can be ensured that the two side plates of the U-shaped plate formed by the plate to be bent 300 can only be bent at the roller 211 at the bottom end of the vertical pressing plate 210. The roller 211 can reduce the frictional force overcome when the plate to be bent 300 is bent at the bottom end of the vertical pressing plate 210, so that the wear between the plate to be bent 300 and the vertical pressing plate 210 can be reduced.

[0049] In some embodiments, a roller 340 is rotatably provided on the side of the bending plate 300 facing away from the top support block 400. When the plate is not bent, the roller 340 and the rotation center axis of the bending plate 300 are in the same horizontal plane. Specifically, a rotating groove is provided on the side of the straight plate segment 310 of the bending plate 300 facing away from the top support block 400, and a roller 340 parallel to the length direction of the rotation center axis of the bending plate 300 is rotatably provided in the rotating groove. The end of the roller 340 facing the groove opening of the rotating groove is flush with the plate surface of the straight plate segment 310 of the bending plate 300.

[0050] When the bending plate 300 is bending the plate, the two side surfaces of the plate 300 to be bent are in contact with the roller 211 at the bottom end of the vertical pressure plate 210 and the roller 340 on the bending plate 300 respectively, so that when the bending plate 300 is bent, not only the wear between the plate 300 to be bent and the vertical pressure plate 210 is reduced, but also the wear between the plate 300 to be bent and the bending plate 300 is reduced, which can further reduce the problem of large wear between the plate 300 to be bent and the mold.

[0051] Of course, a pad can also be installed on the pressure plate 110 for direct contact with the bending plate 300. The surface of the pad is smoother than the surface of the pressure plate 110, thereby reducing the amount of wear on the bending plate 300 when bending the plate 300, which is more conducive to the bending of the plate by the bending plate 300.

[0052] Furthermore, an elastic assembly is disposed between the fixing ring 240 and the support plate 220 and includes a first limiting shaft and a first spring. Two first limiting shafts are fixed to the support plate 220, and the fixing ring 240 has two first through holes corresponding to the first limiting shafts. One end of the first limiting shaft, which is away from the support plate 220, passes through the corresponding first through holes in the fixing ring 240. Two first springs are also provided, and the two first springs are respectively mounted on the two first limiting shafts, and the ends of the first springs on the corresponding first limiting shafts respectively abut against the support plate 220 and the fixing ring 240.

[0053] In this embodiment, when the support plate 220 is pressed down by the power output mechanism 500, the support plate 220 can drive the fixing ring 240 to move downward through the first spring, thereby causing the vertical pressure plate 210 to move synchronously. When the vertical pressure plate 210 moves downward, it can bend the plate set on the top support block 400, thereby achieving preliminary bending of the bending plate 300.

[0054] Furthermore, a slip limiting assembly is provided between the support plate 220 and the vertical pressing plate 210 , and the slip limiting assembly includes a limiting groove provided at the end of the vertical pressing plate 210 and a limiting block fixed on the support plate 220 .

[0055] Specifically, both ends of the vertical pressure plate 210 are provided with limit slots, which may be dovetail slots, and the length direction of the limit slots is parallel to the length direction of the end surfaces of the vertical pressure plate 210, that is, parallel to the vertical direction. The limit blocks may be dovetail blocks that are compatible with the limit slots, and the limit blocks are inserted into the limit slots and can slide along the length direction of the limit slots.

[0056] In this embodiment, the support plate 220 can drive the fixing ring 240 to move through the first spring, and the fixing ring 240 directly drives the vertical pressure plate 210 to move. The setting of the limit groove and the limit block can prevent the support plate 220 from driving the fixing ring 240 to move. Due to the elastic force of the first spring, the fixing ring 240 may not be able to maintain parallelism with the support plate 220 due to uneven force, thereby preventing the vertical pressure plate 210 from tilting due to uneven force on the fixing ring 240, and ensuring that the end of the vertical pressure plate 210 away from the fixing ring 240 can always be synchronously in contact with the plate 300 to be bent.

[0057] In some embodiments, the vertical sliding assembly 600 is disposed between the horizontal pressure plate 230 and the support plate 220 and includes a movable shaft 610 and a fixed cylinder 620. The movable shaft 610 is fixed to the top of the horizontal pressure plate 230, and the fixed cylinder 620 is mounted on the top of the support plate 220. The end of the movable shaft 610 away from the horizontal pressure plate 230 passes through the top cover plates of the support plate 220 and the fixed cylinder 620. The end of the movable shaft 610 away from the horizontal pressure plate 230 is provided with a limiting member 611, which is used to prevent the movable shaft 610 from being separated from the top cover plate of the fixed cylinder 620.

[0058] Specifically, the fixed cylinder 620 is a cylindrical cylinder with a top cover but no bottom cover. The support plate 220 is provided with a hole that matches the inner cylinder of the fixed cylinder 620. When the fixed cylinder 620 is fixed to the support plate 220, its bottom opening is in communication with the hole in the support plate 220. The top cover of the fixed cylinder 620 is provided with a hole that matches the movable shaft 610. The end of the movable shaft 610 away from the horizontal pressure plate 230 passes through the hole in the top cover of the fixed cylinder 620 and is installed with a limiting member 611. The limiting member 611 can be a bolt fixed to the movable shaft 610, which prevents the movable shaft 610 from separating from the top cover of the fixed cylinder 620.

[0059] Furthermore, if Figures 5 to 9 As shown, one end of the movable shaft 610 fixed to the horizontal pressing plate 230 is a cylindrical end 612, specifically a cylindrical end. The inner cylinder of the fixed cylinder 620 is adapted to the cylindrical end 612. A push assembly 800 is provided between the cylindrical end 612 and the vertical pressing plate 210 to stabilize the horizontal pressing plate 230 and the vertical pressing plate 210.

[0060] The push assembly 800 includes a push block 810, a push plate 820, and a tapered surface 830. A push hole 801 is provided on the side of the fixed cylinder 620, and the push block is slidably arranged in the push hole 801. The top surface of the cylindrical end 612 is a tapered surface 830. The side of the push block away from the vertical pressure plate 210 is an inclined surface that matches the tapered surface 830. The side of the vertical pressure plate 210 facing the push hole 801 is provided with a push groove. The length direction of the push groove is parallel to the axial direction of the fixed cylinder 620. The push plate 820 is fixed to the bottom of the push groove. The sides of the push plate 820 and the push block facing each other are both friction surfaces.

[0061] Specifically, the bottom wall of the push hole 801 can be the top surface of the support plate 220. Two push holes 801 are provided, corresponding to and communicating with each other, and are centrally symmetrically arranged about the center of the bottom end of the fixed cylinder 620. Two push blocks are also provided, and the two push blocks are slidably disposed in the two push holes 801, respectively. The tapered surface 830 can be the side of a frustum. The end of the push block facing away from the vertical pressure plate 210, that is, the side of the push block facing the cylindrical end 612, is provided with an inclined surface that matches the tapered surface 830. This inclined surface can be a conical inclined surface. A push groove is provided on the side of the vertical pressure plate 210 corresponding to the push hole 801. The push block can extend into the push groove under the push of the cylindrical end 612 of the movable shaft 610. When the push block slides into the push groove under the push of the cylindrical end 612, the side of the push block facing the vertical pressure plate 210 abuts against the side of the push plate 820 facing away from the push groove.

[0062] In this embodiment, when the vertical pressing plate 210 presses against the plate to be bent 300 disposed on the top support block 400, the vertical pressing plate 210, under the action of the support plate 220 and the first spring, can bend the plate to form a U-shaped plate. During the process of forming the U-shaped plate, the horizontal pressing plate 230 abuts against the top of the U-shaped plate, thereby pushing the movable shaft 610 upward relative to the support plate 220.

[0063] As the movable shaft 610 rises relative to the support plate 220, its cylindrical end 612 can gradually pass through the corresponding hole on the support plate 220, and the tapered surface 830 on the cylindrical end 612 can push the push block gradually toward the abutment plate 820. Because the sides of the push block and the abutment plate 820 facing each other are friction surfaces, when the push block is pressed against the abutment plate 820, the horizontal pressing plate 230 cannot continue to rise, thereby achieving the fixed shape of the horizontal pressing plate 230 and the vertical pressing plate 210, thereby facilitating the bending of the "X"-shaped plate and avoiding the possibility that the surface of the bent plate corresponding to the horizontal pressing plate 230 will bulge upwards due to the horizontal pressing plate 230 not being able to exert sufficient pressure on the bent plate 300 during the bending process.

[0064] Furthermore, a reset groove is formed on the inner wall of the push hole 801, and a push tab 802 is fixed to the side wall of the push block. The push tab 802 is inserted into the reset groove and can slide along the length of the reset groove. A reset spring 803 is connected between the bottom of the reset groove and the push tab 802. When the bending plate 300 is bent, the reset spring 803 facilitates the release of the push block from the contact with the stop tab.

[0065] In some embodiments, the pressure plate 110 is provided with a through-hole, through which the support block 400 is inserted via an elastic support mechanism. The elastic support mechanism comprises a second limiting shaft fixed to the bottom of the support block 400 and a second spring sleeved on the second limiting shaft. The end of the second limiting shaft, distal from the support block 400, extends through the top end plate of the base 100. The ends of the second spring are respectively connected to the pressure plate 110 and the top end plate of the base 100.

[0066] The setting of the elastic supporting mechanism indicates that the supporting block 400 is elastically set in the perforation. When the support plate 220 is pressed by the power output mechanism 500, the support plate 220 drives the vertical pressure plate 210 close to the pressure plate 110, and the horizontal pressure plate 230 gradually presses against the plate 300 to be bent. When the horizontal pressure plate 230 presses against the plate 300 to be bent, the support plate 220 continues to press down, and the supporting block 400 can be pressed. When the supporting block 400 is pressed, the bending plate 300 on its side rotates accordingly, thereby realizing the bending of the plate.

[0067] Furthermore, if Figures 6 to 8 As shown, the top support block 400 includes a U-shaped block 410 and a T-shaped block 420. The U-shaped block 410 is inserted into the through hole, and the second limiting shaft is fixed on the outer bottom surface of the U-shaped block 410. The two ends of the second spring are respectively connected to the U-shaped block 410 and the top end plate of the base 100. One end of the T-shaped block 420 is inserted into the inner groove of the U-shaped block 410 and is rotatably connected to a stud 411. The end of the stud 411 away from the T-shaped block 420 passes through the inner bottom surface of the U-shaped block 410 and is threadedly connected to the U-shaped block 410. The stud 411 passes through one end of the U-shaped block 410 and is installed with a handwheel 412. The fixing plate 401 is fixed on the U-shaped block 410.

[0068] Specifically, two second limiting shafts are fixed on the outer bottom surface of the U-shaped block 410, and the two second limiting shafts are respectively close to the two ends of the outer bottom surface of the U-shaped block 410. The stud 411 is set at the center of the inner bottom surface of the U-shaped block 410, and the axial direction of the stud 411 is parallel to the axial direction of the second limiting shaft.

[0069] In this embodiment, a worker can rotate stud 411 via handwheel 412, thereby driving T-shaped block 420 to extend from the inner groove of U-shaped block 410 via stud 411, thereby adjusting the height of T-shaped block 420 within U-shaped block 410. The worker can adjust the height of T-shaped block 420 extending from U-shaped block 410 based on the desired height of the "X"-shaped plate. The height of the "X"-shaped plate is the distance between the upper and lower sides of the "X"-shaped plate.

[0070] For example, when the support plates on both sides of the T-shaped block 420 abut against the vertical plates on both sides of the U-shaped block 410, assuming that the vertical distance between the top surface of the T-shaped block 420 and the rotation center of the bending plate 300 is a, when the vertical pressing plate 210 presses the plate downward by the distance a, the rotating wheel 212 on the vertical pressing plate 210 abuts against the ear plate 330 of the bending plate 300;

[0071] When the support plates on both sides of the T-block 420 extend out of the U-block 410 by a distance b, the vertical distance between the T-block 420 and the rotation center of the bending plate 300 is (a+b). At this time, only when the vertical pressing plate 210 presses the plate down by a distance (a+b), the rotating wheel 212 on the vertical pressing plate 210 can rest on the ear plate 330 of the bending plate 300, thereby enabling the staff to more easily control the height of the processed "X"-shaped plate.

[0072] Furthermore, arcuate grooves 413 are provided on the sides of the two side vertical plates of the U-shaped block 410 away from each other. When the bending plate 300 rotates, the end of the bending plate 300 away from its arc plate section 320 can rotate in the arcuate groove 413 on the corresponding side of the U-shaped block 410.

[0073] The arc groove 413 prevents the end of the bending plate 300 away from the arc plate segment 320 from contacting the U-shaped block 410 when the bending plate 300 rotates, thereby maintaining normal rotation of the bending plate 300 between the ear plates 330 .

[0074] In some embodiments, the power output mechanism 500 includes a connecting rod 510, a clamping plate 520, a receiving plate 530, and an external power device 540. The connecting rod 510 is fixed to the top of the support plate 220, the receiving plate 530 is mounted on the bottom of the output end of the external power device 540, and the clamping plate 520 is mounted on one side of the receiving plate 530 via a clamping assembly 900. An abutment plate 531 is fixed to the side of the receiving plate 530 away from the clamping plate 520. The connecting rod 510 is inserted into the clamping groove formed by the clamping plate 520 and the abutment plate 531 and is fastened within the clamping groove via the clamping assembly 900.

[0075] Specifically, two connecting rods 510 are vertically mounted on the support plate 220. These two connecting rods 510 are located on either side of the fixing tube 620 and extend out of the inner hole of the fixing ring 240. Each connecting rod 510 has a slot extending perpendicular to its length. The connecting plate 530 is mounted on the bottom of the output end of the external power unit 540. The external power unit 540 is an output device outside the present invention that can propel the connecting plate 530 up and down. The external power unit 540 can be a hydraulic cylinder, electric push rod, or the like. The abutment plate 531 is a plate member corresponding to the clamping plate 520. A clip that matches the clip is fixed to the side of the clamping plate 520 facing the abutment plate 531. The connecting rod 510 is inserted into the clip slot formed by the clamping plate 520 and the abutment plate 531, and the clip on the clamping plate 520 is inserted into the clip slot on the connecting rod 510. The connecting rod 510 is fastened in the clamping groove under the action of the clamping assembly 900, so that when the output end of the external power device 540 is extended or retracted, it can drive the connecting rod 510 to move synchronously through the receiving plate 530, and then drive the support plate 220 to move synchronously through the connecting rod 510, thereby realizing the bending of the bending plate 300 by the vertical pressure plate 210.

[0076] Furthermore, the clamping assembly 900 includes an eccentric stop 910 and a lever 920. A clamping hole 901 is defined on the side of the clamping plate 520 away from the receiving plate 530. The eccentric stop 910 is rotatably disposed within the clamping hole 901, and the lever 920 is fixed to the eccentric stop 910. Pulling the lever 920 forces the eccentric stop 910 to press against the receiving plate 530, thereby tightening the clamping plate 520 against the receiving plate 530 and securing the connecting rod 510 within the clamping groove.

[0077] When it is necessary to produce I-shaped workpieces of different widths (that is, the top widths of the I-shaped workpieces to be produced are different), it is only necessary to replace the pressing unit 200 and the top support block 400 that can bend the plate into different widths, and there is no need to replace the supporting plate 530, the clamping plate 520 and the abutment plate 531 connected to the external power device 540.

[0078] It should be noted that the elastic coefficients of the first spring and the second spring in the present invention are relatively large, wherein the elastic coefficient of the second spring is greater than the elastic coefficient of the first spring. Therefore, when the wheel 212 on the vertical pressure plate 210 is against the ear plate 330 of the bending plate 300, the top support block 400 will not be pressed down before the horizontal pressure plate 230 is fixed with the vertical pressure plate 210. Only when the power output mechanism 500 acts on the top support block 400 through the support plate 220 and the pressure plate, the top support block 400 can be pressed.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A metal sheet bending and forming device, characterized in that: include: A base (100), a pressure plate (110) is provided on the base (100), and a top support block (400) is provided on the pressure plate (110); A pressing unit (200), the pressing unit (200) comprises a vertical pressing plate (210), a support plate (220), a horizontal pressing plate (230) and a fixing ring (240), the vertical pressing plate (210) being mounted on both ends of the fixing ring (240), the support plate (220) being arranged above the base (100) via a power output mechanism (500) and being arranged below the fixing ring (240) via an elastic component, the support plate (220) being slidably connected between the vertical pressing plates (210), the horizontal pressing plate (230) being located between the vertical pressing plates (210) and being arranged below the support plate (220) via a vertical sliding component (600), the end of the horizontal pressing plate (230) being in contact with the vertical pressing plate (210); A bending plate (300), wherein two bending plates (300) are provided, and the two bending plates (300) are respectively located on both sides of the top support block (400), the bending direction of the bending plate (300) is away from the top support block (400), and two ear plates (330) are fixed on one side of the bending plate (300), and the two ear plates (330) are respectively close to the two ends of the bending plate (300); Both ends of the top support block (400) are equipped with fixed plates (401), the two ear plates (330) on the bending plate (300) are rotatably connected to the fixed plates (401) at both ends of the top support block (400), both ends of the vertical pressing plate (210) are equipped with rotating wheels (212), the two rotating wheels (212) respectively correspond to the two ear plates (330) on the bending plate (300), and the bottom end of the vertical pressing plate (210) is rotatably connected to a roller (211); The vertical sliding assembly (600) includes a movable shaft (610) and a fixed cylinder (620), wherein the movable shaft (610) is fixed to the top of the horizontal pressing plate (230), and the fixed cylinder (620) is installed on the top of the support plate (220). The end of the movable shaft (610) away from the horizontal pressing plate (230) passes through the top cover plates of the support plate (220) and the fixed cylinder (620), and a limiting member (611) is provided at the end of the movable shaft (610) away from the horizontal pressing plate (230). The limiting member (611) is used to prevent the movable shaft (610) from being separated from the top cover plate of the fixed cylinder (620); When the vertical pressing plate (210) performs a bending operation on the steel plate, the vertical pressing plate (210) is inserted between the corresponding two ear plates (330), and the rotating wheel (212) contacts the upper surface of the corresponding ear plate (330), and the roller (211) is coaxially arranged with the rotation center of the bending plate (300). When the bending plate (300) rotates, the roller (211) is always coaxially arranged with the rotation center of the bending plate (300).

2. The metal sheet bending and forming equipment according to claim 1, characterized in that: The elastic component includes a first limiting shaft and a first spring. The first limiting shaft is fixed on the support plate (220). One end of the first limiting shaft away from the support plate (220) passes through the annular surface of the fixing ring (240). The first spring is sleeved on the first limiting shaft, and the two ends of the first spring are respectively in contact with the support plate (220) and the fixing ring (240).

3. The metal sheet bending and forming equipment according to claim 1, characterized in that: A slip limiting assembly is provided between the support plate (220) and the vertical pressure plate (210), and the slip limiting assembly comprises a limit groove provided at the end of the vertical pressure plate (210) and a limit block fixed on the support plate (220), the limit groove being adapted to the limit block, the limit block being inserted into the limit groove and being capable of sliding along the length direction of the limit groove.

4. The metal sheet bending and forming equipment according to claim 1, characterized in that: One end of the movable shaft (610) fixed to the horizontal pressing plate (230) is a cylindrical end (612), the inner cylinder of the fixed cylinder (620) is adapted to the cylindrical end (612), and a push assembly (800) capable of shaping the horizontal pressing plate (230) and the vertical pressing plate (210) is provided between the cylindrical end (612) and the vertical pressing plate (210); The push assembly (800) includes a push block (810), a push plate (820) and a tapered surface (830). A push hole (801) is provided on the side of the fixed cylinder (620). The push block is slidably arranged in the push hole (801). The top surface of the cylindrical end (612) is a tapered surface (830). The side of the push block away from the vertical pressure plate (210) is an inclined surface adapted to the tapered surface (830). A push groove is provided on the side of the vertical pressure plate (210) facing the push hole (801). The length direction of the push groove is parallel to the axial direction of the fixed cylinder (620). The push plate (820) is fixed to the bottom of the push groove. The sides of the push plate (820) and the push block facing each other are both friction surfaces.

5. The metal sheet bending and forming equipment according to claim 4, characterized in that: A reset groove is provided on the inner wall of the push hole (801), a push piece (802) is fixed on the side wall of the push block, the push piece (802) is inserted into the reset groove and can slide along the length direction of the reset groove, and a reset spring (803) is connected between the bottom of the reset groove and the push piece (802).

6. The metal sheet bending and forming equipment according to claim 1, characterized in that: The pressure plate (110) is provided with a through hole, and the supporting block (400) is inserted into the through hole through an elastic supporting mechanism. The elastic supporting mechanism includes a second limiting shaft fixed to the bottom of the supporting block (400) and a second spring sleeved on the second limiting shaft. One end of the second limiting shaft away from the supporting block (400) passes through the top end plate of the base (100), and the two ends of the second spring are respectively connected to the pressure plate (110) and the top end plate of the base (100).

7. The metal sheet bending and forming equipment according to claim 6, characterized in that: The supporting block (400) comprises a U-shaped block (410) and a T-shaped block (420), the U-shaped block (410) is inserted into the through hole, the second limiting shaft is fixed on the outer bottom surface of the U-shaped block (410), the two ends of the second spring are respectively connected to the U-shaped block (410) and the top end plate of the base (100), one end of the T-shaped block (420) is inserted into the inner groove of the U-shaped block (410) and is rotatably connected to a stud (411), the end of the stud (411) away from the T-shaped block (420) passes through the inner bottom surface of the U-shaped block (410) and is threadedly connected to the U-shaped block (410), the end of the stud (411) passing through the U-shaped block (410) is installed with a hand wheel (412), and the fixing plate (401) is fixed to the U-shaped block (410); An arcuate groove (413) is provided on the side of the U-shaped block (410), and the arcuate groove (413) is used to maintain the rotation of the bending plate (300) between the fixed plates (401).

8. The metal sheet bending and forming equipment according to claim 1, characterized in that: The power output mechanism (500) comprises a connecting rod (510), a clamping plate (520), a receiving plate (530) and an external power device (540). The connecting rod (510) is fixed to the top of the support plate (220). The receiving plate (530) is installed at the bottom of the output end of the external power device (540) and is arranged above the base (100). The clamping plate (520) is installed on one side of the receiving plate (530) through a clamping assembly (900). An abutting plate (531) is fixed on the side of the receiving plate (530) away from the clamping plate (520). The connecting rod (510) is inserted into a clamping groove formed by the clamping plate (520) and the abutting plate (531) and is fastened in the clamping groove through the clamping assembly (900).

9. The metal sheet bending and forming equipment according to claim 8, characterized in that: The clamping assembly (900) includes an eccentric stop block (910) and a lever (920); a clamping hole (901) is provided on a side of the clamping plate (520) away from the receiving plate (530); the eccentric stop block (910) is rotatably arranged in the clamping hole (901); and the lever (920) is fixed on the eccentric stop block (910).

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