Bending device for structural part machining

Abstract

The invention discloses a bending device for structural part machining, and relates to the technical field of metal bending machining. The problem of metal plate damage is solved. The device specifically comprises a base and a portal frame fixedly installed on the outer wall of the top of the base, the inner side of the portal frame is in transmission connection with a pressing plate piece through a lifting part, and a supporting part is arranged on the outer wall, below the base, of the base; the supporting part comprises a middle plate and two bent plate pieces rotationally connected to the side edges of the middle plate, and the bottoms of the other ends of the bent plate pieces are movably connected to the base through limiting rod pieces. In the whole bending process, the mode that the pressing plate pieces are matched with the bending plate pieces on the two sides for limiting is adopted, bending is conducted by moving the symmetric centers of the bending plate pieces downwards, and therefore the two bending plate pieces can be attached to the side walls of the two sides of the bending position of the metal plate all the time in the process, surface contact is formed, the contact area is increased, and the bending efficiency is improved. Therefore, damage to the metal plate caused by local stress during bending is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of metal bending processing, and in particular to a bending device for processing structural parts. Background Art

[0002] Metal plates are commonly used structural parts, which need to be bent in different usage scenarios. For example, they can be bent symmetrically at 90 degrees to form "angle irons" to increase their bending and torsional strength, or bent at other angles to connect two non-parallel structural parts.

[0003] For example, after searching, the Chinese patent publication number CN212070053U discloses a steel structure bending device, including a bending base plate, two groups of slide grooves are symmetrically opened at the top of the bending base plate, a slider is slidably connected inside the slide groove, a connecting rod is fixed to the center of the side of the slider, the connecting rod movably passes through the side of the bending base plate, a connecting plate is fixed to the end of the connecting rod, a threaded hole is opened at the center of the side of the bending base plate, a connecting screw is threadedly connected inside the threaded hole, a through rod is fixed to the end of the connecting screw, the end of the through rod rotates and passes through the center of the connecting plate, a bending groove is opened at the top edge of the bending base plate, and an indicator scale is set on one edge of the top of the bending groove.

[0004] The above patent has the following shortcomings: it uses a clamping plate to clamp the metal plate, and then uses a bending plate to press the metal plate down to bend it. In this way, once the metal plate is bent, it is no longer in contact with the bending plate, and the contact between them is line contact. This means that the downward pressure during bending will act completely on the contact line, and the contact area is small, which will damage the surface of the metal plate and form indentations or cracks.

[0005] To this end, the present invention provides a bending device for processing structural parts. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a bending device for processing structural parts.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A bending device for processing structural parts comprises a base and a gantry fixedly mounted on the outer wall of the top of the base. The inner side of the gantry is connected with a pressing plate through a lifting part, and the outer wall of the base below the base is provided with a supporting part; The support part includes an intermediate plate and two bent plates rotatably connected to the sides of the intermediate plate. The bottom of the other end of the bent plate is movably connected to the base through a limiting rod. The bottom of the intermediate plate is slidably connected to the top of the base through a main support rod, and a spring is provided on the outer wall of the main support rod.

[0008] Preferably, the outer side wall of the main support rod is provided with a limit block for limiting its displacement.

[0009] Furthermore: the bending plate comprises a bending plate and an extension plate linearly slidably connected to the side of the bending plate, the inner wall of the extension plate is rotatably connected to a threaded rod 1, and the outer wall of the threaded rod 1 is connected to the inner wall of the bending plate through threads.

[0010] On the basis of the above scheme: the limiting rod includes connecting rod 1, connecting rod 2 and connecting rod 3, connecting rod 1 and connecting rod 2 are slidably connected to each other, the top end of connecting rod 1 is rotatably connected to the bottom outer wall of the bending plate, the bottom end of connecting rod 2 is rotatably connected to the top outer wall of the base, one end of connecting rod 3 is rotatably connected to the bottom end side wall of connecting rod 1, and the other end of connecting rod 3 is rotatably connected to the top outer wall of the base.

[0011] A better solution among the above solutions is that the pressure plate member includes a lifting plate and a pressure plate slidably connected to the inner side of the lifting plate through a slider, and the side wall of the lifting plate is provided with multiple groups of symmetrical limiting members.

[0012] As a further solution of the present invention: the limiting member includes a guide shell fixedly mounted on the side wall of the lifting plate and a guide block slidably connected to the inner wall of the guide shell, the guide shell and the opposite side of the guide block are connected by spring 2, and a limiting wedge block is fixedly mounted on the outer side wall of the guide block, a slope 1 is provided on the bottom side wall of the limiting wedge block, and the two side walls of the pressure plate are rotatably connected with rollers via a wheel axle.

[0013] At the same time, a limiting rod is fixedly installed on the top of the sliding block, and a second inclined plane is arranged on the top of the limiting wedge block, and the inclination angle of the second inclined plane relative to the horizontal plane is greater than that of the first inclined plane.

[0014] As a preferred embodiment of the present invention: the lifting part includes a guide rod and a telescope, the guide rod is fixedly installed on the top outer wall of the lifting plate, and the outer wall of the guide rod is slidably connected to the gantry, the telescope is fixedly installed on the top outer wall of the gantry, and the telescopic end of the telescope is fixedly installed on the top outer wall of the lifting plate.

[0015] At the same time, a plurality of paddles are fixedly installed on the outer wall of the wheel axle, a flexible tube is bonded to the inner wall of the lifting plate, hard tubes are connected to both ends of the flexible tube, and a Tesla valve tube is fixedly embedded on the inner wall of the lifting plate, and both ends of the Tesla valve tube are respectively connected to the ends of two hard tubes, the paddles are in contact with the flexible tube and squeezed together, and fluid is injected into the Tesla valve tube, hard tube and flexible tube.

[0016] As a more preferred solution of the present invention: a loading piece is provided on one side of the base, and the loading piece includes a material storage plate slidably connected to the top of the base through a second guide rod and a second telescope fixedly installed on the outer wall of the top of the base, and a push plate is fixedly installed on the telescopic end of the second telescope; The bottom side of the push plate is connected to a toothed plate through an elastic support rod, and the bottom of the storage plate is rotatably connected to a threaded rod 2, and the circumferential outer wall of the threaded rod 2 is connected to the inner wall of the base through a thread, and the inner wall of the base is rotatably connected to a transition ring, and the inner side wall of the transition ring is fixedly installed with a key-shaped protrusion, and the key-shaped protrusion is fitted with the threaded rod 2 through a keyway clearance opened on the side wall of the threaded rod 2, and the outer wall of the transition ring is provided with a one-way ratchet assembly, and a toothed ring is fixed to the outer side of the one-way ratchet assembly, and the toothed ring is meshed with the side wall of the push plate.

[0017] The beneficial effects of the present invention are: 1. The present invention uses a pressure plate to limit the bending plates on both sides during the entire bending process, and uses the downward movement of the symmetry center of the bending plate to perform bending. As a result, the two bending plates can always fit the side walls on both sides of the bending part of the metal plate, thereby forming surface contact, increasing the contact area, and preventing damage to the metal plate caused by local force during bending.

[0018] 2. The present invention, by configuring the bending plate as a fixed bending plate and an expandable expansion plate, can change the relative position through the rotation of threaded rod 1, thereby changing the size of the supporting area, thereby reducing the use limitations of the device.

[0019] 3. The present invention, by setting the limiting rod as a combination of connecting rod one, connecting rod two and connecting rod three, utilizes the characteristic that connecting rod one will also rotate when the bending plate rotates and bends, and combines the limiting effect of connecting rod three on connecting rod one, so that connecting rod one can rotate and extend at the same time, so that at the same bending angle, the required displacement of the pressure plate can be smaller, so that its formation is shortened, so that at the same displacement speed of the pressure plate, the time to meet the bending requirement is shorter, thereby improving the bending efficiency.

[0020] 4. The present invention, by setting a limiter, can provide elastic limit support for the pressure plate, so that the pressure plate can repeatedly experience unloading and applying load to the metal plate after bending, thereby utilizing this "vibration" form of load to eliminate stress at the bend, prevent the metal plate from rebounding, and increase the accuracy of the bending angle.

[0021] 5. The present invention, by providing inclined plane 2 and a limiting rod, can, on the one hand, reliably reset the pressure plate; on the other hand, by targeted design of the inclination angles of inclined plane 2 and inclined plane 1, combined with the correlation between the horizontal force of the roller on the limiting wedge and the inclination angle, it can achieve sufficient pressure of the lifting plate on the pressure plate when pressing down to ensure the bending pressure, and also achieve small resistance during resetting to save energy.

[0022] 6. The present invention, by setting a paddle plate, a flexible tube, a hard tube and a Tesla valve tube, on the one hand, utilizes the characteristics of a "peristaltic pump" formed by the cooperation of the paddle plate and the flexible tube to transport and circulate the fluid, and on the other hand, combines the characteristics of the Tesla valve tube that the fluid has different resistances in different flow directions, and thus combines the characteristics of the fluid flow resistance limiting the rotation resistance of the paddle plate to realize the function of different rotation resistances for different turns of the roller, thereby further achieving sufficient pressure of the lifting plate on the pressure plate when pressing down to ensure the bending pressure, and also achieving less resistance during resetting to save energy.

[0023] 7. The present invention, by setting a loading piece, uses telescopic device 2 to drive the push plate to realize automatic loading of metal plates, thereby improving efficiency, and further utilizes the transmission characteristics of the gear ring, one-way ratchet assembly, transition ring and threaded rod 2 to make the storage plate rise during the return journey to compensate for the thickness of the metal plate, thereby realizing cluster-type cyclic loading and increasing convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a bending device for processing a structural part proposed by the present invention; Figure 2 A schematic cross-sectional view of a bending device for processing a structural part proposed by the present invention; Figure 3 This is a schematic diagram of the support structure of a bending device for structural part processing proposed by the present invention; Figure 4 A schematic diagram of the structure of a pressure plate component of a bending device for processing a structural component proposed by the present invention; Figure 5 A schematic cross-sectional view of a pressure plate component of a bending device for processing a structural component proposed by the present invention; Figure 6 A schematic diagram of the structure of the lifting part of a bending device for processing a structural part proposed by the present invention; Figure 7 A schematic diagram of the partial structure of a bending device for processing a structural part proposed by the present invention; Figure 8 A schematic diagram of a loading structure of a bending device for processing a structural part proposed by the present invention; Fig. 9A schematic diagram of the tooth plate installation structure of a bending device for structural part processing proposed by the present invention; Fig.10 This is a schematic diagram of the installation structure of a gear ring, a one-way ratchet assembly, a transition ring and a threaded rod 2 of a bending device for structural part processing proposed by the present invention.

[0025] In the figure: 1-base, 2-support part, 3-gantry, 4-lifting part, 5-pressing plate, 6-feeding part, 7-limiting rod, 8-limiting block, 9-main support rod, 10-spring 1, 11-middle plate, 12-bending plate, 13-bending plate, 14-expansion plate, 15-threaded rod 1, 16-connecting rod 1, 17-connecting rod 2, 18-connecting rod 3, 19-lifting plate, 20-pressure plate, 21-sliding block, 22-limiting part, 23-roller, 24-axle, 25-inclined surface 1, 26-spring Spring 2, 27-guide shell, 28-guide block, 29-limit wedge, 30-inclined surface 2, 31-limit rod, 32-guide rod 1, 33-retractor 1, 34-push plate, 35-flexible tube, 36-hard tube, 37-Tesla valve tube, 38-guide rod 2, 39-storage plate, 40-push plate, 41-retractor 2, 42-tooth plate, 43-tooth ring, 44-one-way ratchet assembly, 45-transition ring, 46-threaded rod 2, 47-elastic support rod, 48-keyway, 49-key-shaped protrusion. DETAILED DESCRIPTION

[0026] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] Embodiment 1: A bending device for processing structural parts, such as Figure 1-10 As shown, it includes a base 1 and a gantry 3 fixed to the top outer wall of the base 1 by bolts, the inner side of the gantry 3 is connected to a pressure plate 5 through a lifting part 4, and the outer wall of the base 1 located below the base 1 is provided with a support part 2.

[0029] The support portion 2 includes an intermediate plate 11 and two bent plates 13 rotatably connected to the sides of the intermediate plate 11. The bottom of the other end of the bent plate 13 is movably connected to the base 1 through a limiting rod 7. The bottom of the intermediate plate 11 is slidably connected to the top of the base 1 through a main support rod 9, and the outer wall of the main support rod 9 is provided with a spring 10.

[0030] When the device is in use, a metal plate can be placed on the surface of the bending plate 13, and then the lifting part 4 drives the pressing plate 5 to press down. After the pressing plate 5 contacts the metal plate, it will continue to press down the middle plate 11 with the contact point as the bending point, so that the middle plate 11 moves downward. At the same time, due to the limitation of the other end of the bending plate 13 by the limiting rod 7, the bending plates 13 on both sides are flipped inward until the bending plates 13 on both sides are flipped to the required bending angle.

[0031] The device uses the pressure plate 5 and the bending plates 13 on both sides to limit the entire bending process, and uses the downward movement of the symmetry center of the bending plate 13 to perform bending. In this way, the two bending plates 13 can always fit the side walls on both sides of the bending part of the metal plate, thereby forming surface contact and increasing the contact area, thereby preventing damage to the metal plate caused by local force during bending.

[0032] In order to solve the limitation problem; Figure 2 As shown, the outer wall of the main support rod 9 is provided with a limit block 8 for limiting its displacement. In this embodiment, the specific connection type between the limit block 8 and the main support rod 9 is not limited, and it can be a fixed type such as welding and plug-in, or an adjustable type with threaded connection.

[0033] By setting the limit block 8, the displacement of the main support rod 9 can be limited, so as to control the final bending angle.

[0034] To solve the limitation problem; Figure 3 As shown, the bending plate 13 includes a bending plate 12 and an extension plate 14 linearly slidably connected to the side of the bending plate 12, the inner wall of the extension plate 14 is rotatably connected to a threaded rod 15, and the outer wall of the threaded rod 15 is connected to the inner wall of the bending plate 12 by threads.

[0035] By configuring the bending plate 13 as a fixed bending plate 12 and an expandable expansion plate 14, the relative position can be changed by rotating the threaded rod 15, thereby changing the size of the supporting area, thereby reducing the use limitations of the device.

[0036] In order to solve the efficiency problem; Figure 3 As shown, the limiting rod 7 includes a connecting rod 16, a connecting rod 2 17 and a connecting rod 3 18, the connecting rod 16 and the connecting rod 2 17 are slidably connected to each other, the top end of the connecting rod 16 is rotatably connected to the bottom outer wall of the bending plate 12, the bottom end of the connecting rod 2 17 is rotatably connected to the top outer wall of the base 1, one end of the connecting rod 3 18 is rotatably connected to the bottom end side wall of the connecting rod 16, and the other end of the connecting rod 3 18 is rotatably connected to the top outer wall of the base 1.

[0037] When the connection between the bending plate 12 and the middle plate 11 moves downward, the bending plate 12 itself will rotate, thereby causing the entire limiting rod 7 to rotate. Due to the restriction of the connecting rod 1 18 on the connecting rod 1 16, the connecting rod 1 16 will also extend and retract outward relative to the connecting rod 2 17 while rotating, thereby increasing the length of the entire limiting rod 7 and causing the outer side of the bending plate 12 to move upward.

[0038] The device, by setting the limiting rod 7 as a combination of connecting rod 1 16, connecting rod 2 17 and connecting rod 3 18, utilizes the characteristic that connecting rod 16 will also rotate when the bending plate 12 rotates and bends, and combines the limiting effect of connecting rod 3 18 on connecting rod 16, so that connecting rod 16 can rotate and extend at the same time, so that at the same bending angle, the required displacement of the pressure plate 5 can be smaller, so that its formation is shortened, so that at the same displacement speed of the pressure plate 5, the time to achieve the bending requirement is shorter, thereby improving the bending efficiency.

[0039] In order to solve the bending effect problem; Figure 4 , 5 As shown, the pressure plate member 5 includes a lifting plate 19 and a pressure plate 20 slidably connected to the inner side of the lifting plate 19 via a slider 21 , and a plurality of symmetrical limit members 22 are provided on the side wall of the lifting plate 19 .

[0040] The limiting member 22 includes a guide shell 27 fixed to the side wall of the lifting plate 19 by bolts and a guide block 28 slidably connected to the inner wall of the guide shell 27. The guide shell 27 and the opposite side of the guide block 28 are connected by a spring 26, and a limiting wedge block 29 is welded to the outer side wall of the guide block 28. The bottom side wall of the limiting wedge block 29 is provided with an inclined surface 25, and the two side walls of the pressure plate 20 are rotatably connected to rollers 23 through a wheel axle 24.

[0041] Since the metal plate has a certain toughness, it will rebound when the load is unloaded at the end of bending, resulting in poor accuracy of the bending angle.

[0042] The limit wedge 29 overcomes the elastic force of the second spring 26 and contracts, and the roller 23 rolls upward to another limit wedge 29. In this process, the bending force of the pressure plate 20 on the metal plate undergoes a process of unloading and reapplying, and the above operation is continued until the roller 23 reaches the top of the limit wedge 29 to complete the bending.

[0043] The device, by setting a limiter 22, can provide elastic limit support for the pressure plate 20, so that the pressure plate 20 can repeatedly experience unloading and applying load to the metal plate after bending, thereby utilizing this "vibration" form of load to eliminate stress at the bend, prevent the metal plate from rebounding, and increase the accuracy of the bending angle.

[0044] To solve the reset problem, such as Figure 5 , 6 As shown, a limiting rod 31 is fixed to the top of the sliding block 21 by bolts, and a second inclined surface 30 is provided on the top of the limiting wedge block 29 , and the inclination angle of the second inclined surface 30 relative to the horizontal plane is greater than that of the first inclined surface 25 .

[0045] When the bending is completed, the lifting plate 19 drives the pressure plate 20 to move upward until the top of the limit rod 31 contacts the bottom of the gantry 3, and its position is limited. Therefore, the limiting wedge block 29 is contracted through the inclination limiting effect of the roller 23 on the inclined surface 2 30, and the pressure plate 20 is reset step by step downward relative to the lifting plate 19.

[0046] This device, by providing inclined plane 2 30 and limiting rod 31, can, on the one hand, reliably reset the pressure plate 20; on the other hand, by targeted design of the inclination angles of inclined plane 2 30 and inclined plane 1 25, combined with the correlation between the horizontal force of the roller 23 on the limiting wedge 29 and the inclination angle, it can achieve sufficient pressure of the lifting plate 19 on the pressure plate 20 when pressing down to ensure the bending pressure, and also achieve small resistance during resetting to save energy.

[0047] In order to solve the lifting problem, such as Figure 6As shown, the lifting part 4 includes a first guide rod 32 and a first telescopic device 33. The first guide rod 32 is welded to the top outer wall of the lifting plate 19, and the outer wall of the first guide rod 32 is slidably connected to the gantry 3. The first telescopic device 33 is fixed to the top outer wall of the gantry 3 by bolts, and the telescopic end of the first telescopic device 33 is fixed to the top outer wall of the lifting plate 19 by bolts.

[0048] When the first telescopic device 33 expands and contracts, it can drive the lifting plate 19 to move up and down.

[0049] To further solve the energy consumption problem, as Figure 7 shown, a plurality of dial plates 34 are welded to the outer wall of the wheel axle 24. A flexible tube 35 is adhesively bonded to the inner side wall of the lifting plate 19. Both ends of the flexible tube 35 are connected to a rigid tube 36. And a Tesla valve tube 37 is fixedly embedded in the inner wall of the lifting plate 19. Both ends of the Tesla valve tube 37 are respectively connected to the ends of the two rigid tubes 36. The dial plate 34 is in contact with and in extrusion fit with the flexible tube 35. The Tesla valve tube 37, the rigid tube 36, and the flexible tube 35 are filled with fluid.

[0050] When the wheel axle 24 rotates, it can cyclically extrude the flexible tube 35, thereby forming a "peristaltic pump" structure, realizing fluid circulation in the closed inner cavity composed of the flexible tube 35, the rigid tube 36, and the Tesla valve tube 37. Combining the characteristics that the fluid flow in one direction in the Tesla valve tube 37 has basically no resistance and the resistance in the other direction is relatively large, the rotational resistance of the wheel axle 24 can be restricted in the reverse direction through the fluid flow resistance, and then rotation is provided for the roller 23. Thus, when the roller 23 rotates relatively, the rotational resistance in one direction is large, while the rotational resistance in the other wire-releasing direction is small. When the roller 23 is moved upward, its rotation direction is set to the direction with large rotational resistance, and when the roller 23 is moved downward, its rotation direction is set to the direction with small rotational resistance.

[0051] In this device, by setting the dial plate 34, the flexible tube 35, the rigid tube 36, and the Tesla valve tube 37, on the one hand, using the "peristaltic pump" characteristics formed by the cooperation of the dial plate 34 and the flexible tube 35 to convey and circulate the fluid, and on the other hand, combining the characteristics that the fluid flow in the Tesla valve tube 37 has different resistances in different directions, thus realizing the function that the rotational resistance of the roller 23 is different in different rotation directions by combining the characteristic that the fluid flow resistance restricts the rotational resistance of the dial plate 34. Further, when pressing down, the pressure of the lifting plate 19 on the pressing plate 20 is sufficient to ensure the bending pressure, and when resetting, the resistance is small, saving energy consumption.

[0052] When the present embodiment is in use, the metal plate can be placed on the surface of the bent plate 13, and then the lifting part 4 drives the pressing plate 5 to press down. After the pressing plate 5 contacts the metal plate, it will continue to press down the middle plate 11 with the contact point as the bending point, so that the middle plate 11 moves down. At the same time, due to the limitation of the other end of the bent plate 13 by the limiting rod 7, the bent plates 13 on both sides are flipped inwards, until the bent plates 13 on both sides are flipped to the required bending angle, the limiting block 8 contacts the base 1, and the main support rod 9 cannot continue to move down. At this time, the lifting plate 19 continues to be lowered, and the limiting wedge block 29 overcomes the elastic The elastic force of the second spring 26 contracts, and the roller 23 rolls upward to another limiting wedge block 29. During this process, the bending force of the pressure plate 20 on the metal plate undergoes a process of unloading and re-applying. The above operation is continued until the roller 23 reaches the top of the limiting wedge block 29 to complete the bending. When the connection between the bending plate 12 and the middle plate 11 moves downward, the bending plate 12 itself rotates, thereby causing the entire limiting rod 7 to rotate. Due to the restriction of the connecting rod 1 16 by the connecting rod 3 18, the connecting rod 16 will rotate outward relative to the connecting rod 2 17. The lifting plate 19 is stretched and retracted sideways, thereby increasing the length of the entire limiting rod 7, so that the outer side of the bending plate 12 moves up. In addition, when the bending is completed, the lifting plate 19 drives the pressure plate 20 to move up together until the top of the limiting rod 31 contacts the bottom of the gantry 3, and its position is limited. Therefore, the limiting wedge 29 is contracted by the inclined limiting effect of the roller 23 on the inclined surface 2 30, and the pressure plate 20 is reset step by step downward relative to the lifting plate 19. At the same time, when the wheel shaft 24 rotates, it can realize cyclic extrusion of the flexible tube 35, thereby forming a "peristaltic pump" structure, which pushes the flexible tube 35 and the hard tube 36 , and the Tesla valve tube 37 form a closed inner cavity to realize fluid circulation. Combined with the characteristics that the fluid flow in the Tesla valve tube 37 has basically no resistance in one direction and relatively large resistance in the other direction, the rotation resistance of the wheel axle 24 can be reversely limited by the fluid flow resistance, and then the roller 23 can be provided with rotation, so that when the roller 23 rotates relatively, the rotation resistance in one direction is large, while the rotation resistance in the other direction is small. When the roller 23 is moved up, its rotation direction is set to the direction with large rotation resistance, and when the roller 23 is moved down, its rotation direction is set to the direction with small rotation resistance.

[0053] Embodiment 2: A bending device for processing structural parts, such as Figure 1 , 8 -10, in order to solve the feeding problem; this embodiment makes the following improvements on the basis of embodiment 1: a feeding piece 6 is provided on one side of the base 1, and the feeding piece 6 includes a storage plate 39 slidably connected to the top of the base 1 through a guide rod 38 and a telescopic device 41 fixed to the outer wall of the top of the base 1 by bolts, and the telescopic end of the telescopic device 41 is fixed with a push plate 40 by bolts.

[0054] The bottom side of the push plate 40 is connected to a toothed plate 42 through an elastic support rod 47, and the bottom of the storage plate 39 is rotatably connected to a threaded rod 46, and the circumferential outer wall of the threaded rod 46 is connected to the inner wall of the base 1 through a thread, and the inner wall of the base 1 is rotatably connected to a transition ring 45, and the inner side wall of the transition ring 45 is welded with a key-shaped protrusion 49, and the key-shaped protrusion 49 is clearance-fitted with the threaded rod 46 through a key groove 48 opened on the side wall of the threaded rod 46, and the outer wall of the transition ring 45 is provided with a one-way ratchet assembly 44, and a toothed ring 43 is fixed to the outer side of the one-way ratchet assembly 44, and the toothed ring 43 is meshed with the side wall of the push plate 40.

[0055] The one-way ratchet assembly 44 in this embodiment is a conventional setting of those skilled in the art, which can only enable the toothed ring 43 to have a one-way transmission function relative to the key-shaped protrusion 49, and is widely used in bicycle pedals and driving sprockets, so it will not be described in detail in this embodiment.

[0056] When the present embodiment is in use, the metal plate can be stacked on top of the storage plate 39. When the telescopic device 2 41 is started, it can drive the push plate 40 to move, thereby pushing the metal plate through the top of the push plate 40 for loading, and during this process, the transition ring 45 and the toothed ring 43 are in a non-transmission state. After the loading is completed, the push plate 40 contracts, thereby driving the toothed ring 43 to rotate through the engagement of the toothed plate 42 and the toothed ring 43, and then driving the transition ring 45 to rotate through the one-way ratchet assembly 44, thereby driving the threaded rod 2 46 to rotate through the cooperation of the key-shaped protrusion 49 and the key groove 48, and the threaded rod 2 46 uses its threaded connection relationship with the base 1 to drive the storage plate 39 to rise, and its rising distance is controlled by the reset stroke of the telescopic device 2 41.

[0057] The present device, by setting a feeding part 6, utilizes the telescopic device 2 41 to drive the push plate 40, realizes automatic feeding of the metal plate, improves efficiency, and reuses the transmission characteristics of the gear ring 43, the one-way ratchet assembly 44, the transition ring 45 and the threaded rod 2 46, which can make the storage plate 39 rise during the return journey to compensate for the thickness of the metal plate, thereby realizing cluster-type cyclic feeding and increasing convenience of use.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bending device for processing a structural part, comprising a base (1) and a gantry (3) fixedly mounted on the top outer wall of the base (1), characterized in that: The inner side of the gantry (3) is connected to a pressing plate (5) via a lifting part (4), and the outer wall of the base (1) located below the base (1) is provided with a supporting part (2); The support portion (2) comprises an intermediate plate (11) and two bent plate members (13) rotatably connected to the side edges of the intermediate plate (11); the bottom of the other end of the bent plate member (13) is movably connected to the base (1) via a limit rod (7); the bottom of the intermediate plate (11) is slidably connected to the top of the base (1) via a main support rod (9), and a spring (10) is sleeved on the outer wall of the main support rod (9).

2. A bending device for processing a structural part according to claim 1, characterized in that: The outer side wall of the main support rod (9) is provided with a limiting block (8) for limiting its displacement.

3. A bending device for processing a structural part according to claim 1, characterized in that: The bending plate member (13) comprises a bending plate (12) and an extension plate (14) linearly slidably connected to the side of the bending plate (12); the inner wall of the extension plate (14) is rotatably connected to a threaded rod (15); and the outer wall of the threaded rod (15) is connected to the inner wall of the bending plate (12) via threads.

4. A bending device for processing a structural part according to claim 1, characterized in that: The limiting rod (7) comprises a connecting rod 1 (16), a connecting rod 2 (17) and a connecting rod 3 (18); the connecting rod 1 (16) and the connecting rod 2 (17) are slidably connected to each other; the top end of the connecting rod 1 (16) is rotatably connected to the bottom outer wall of the bending plate (12); the bottom end of the connecting rod 2 (17) is rotatably connected to the top outer wall of the base (1); one end of the connecting rod 3 (18) is rotatably connected to the bottom end side wall of the connecting rod 1 (16); and the other end of the connecting rod 3 (18) is rotatably connected to the top outer wall of the base (1).

5. A bending device for processing a structural part according to claim 1, characterized in that: The pressure plate member (5) comprises a lifting plate (19) and a pressure plate (20) slidably connected to the inner side of the lifting plate (19) via a slider (21); a plurality of groups of symmetrical limiting members (22) are provided on the side wall of the lifting plate (19).

6. A bending device for processing a structural part according to claim 5, characterized in that: The limiting member (22) comprises a guide shell (27) fixedly mounted on the side wall of the lifting plate (19) and a guide block (28) slidably connected to the inner wall of the guide shell (27); the guide shell (27) and the guide block (28) are connected on opposite sides via a second spring (26); a limiting wedge block (29) is fixedly mounted on the outer side wall of the guide block (28); a sloped surface (25) is provided on the bottom side wall of the limiting wedge block (29); and the two side walls of the pressure plate (20) are rotatably connected to rollers (23) via a wheel shaft (24).

7. A bending device for processing a structural part according to claim 6, characterized in that: A limiting rod (31) is fixedly mounted on the top of the sliding block (21), and a second inclined plane (30) is provided on the top of the limiting wedge block (29), wherein the inclination angle of the second inclined plane (30) relative to the horizontal plane is greater than that of the first inclined plane (25).

8. A bending device for processing a structural part according to claim 1, characterized in that: The lifting part (4) comprises a guide rod (32) and a telescopic device (33), wherein the guide rod (32) is fixedly mounted on the top outer wall of the lifting plate (19), and the outer wall of the guide rod (32) is slidably connected to the gantry (3), and the telescopic device (33) is fixedly mounted on the top outer wall of the gantry (3), and the telescopic end of the telescopic device (33) is fixedly mounted on the top outer wall of the lifting plate (19).

9. A bending device for processing a structural part according to claim 7, characterized in that: A plurality of shifting plates (34) are fixedly mounted on the outer wall of the wheel axle (24); a flexible tube (35) is bonded to the inner wall of the lifting plate (19); both ends of the flexible tube (35) are connected to hard tubes (36); and a Tesla valve tube (37) is fixedly embedded in the inner wall of the lifting plate (19); both ends of the Tesla valve tube (37) are respectively connected to the ends of two hard tubes (36); the shifting plates (34) are in contact with and squeeze-fit with the flexible tube (35); and fluid is injected into the Tesla valve tube (37), the hard tube (36) and the flexible tube (35).

10. A bending device for processing a structural part according to claim 1, characterized in that: A loading member (6) is provided on one side of the base (1), the loading member (6) comprising a material storage plate (39) slidably connected to the top of the base (1) via a second guide rod (38) and a second telescopic device (41) fixedly mounted on the outer wall of the top of the base (1), a push plate (40) being fixedly mounted on the telescopic end of the second telescopic device (41); The bottom side of the push plate (40) is connected to a toothed plate (42) via an elastic support rod (47); the bottom of the storage plate (39) is rotatably connected to a second threaded rod (46); the circumferential outer wall of the second threaded rod (46) is connected to the inner wall of the base (1) via a thread; the inner wall of the base (1) is rotatably connected to a transition ring (45); a key-shaped protrusion (49) is fixedly installed on the inner side wall of the transition ring (45); the key-shaped protrusion (49) is clearance-fitted with the second threaded rod (46) via a keyway (48) provided on the side wall of the second threaded rod (46); and a one-way ratchet assembly (44) is provided on the outer wall of the one-way ratchet assembly (44); a toothed ring (43) is fixed to the outer side of the one-way ratchet assembly (44); and the toothed ring (43) is meshed with the side wall of the push plate (40).

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