Plate bending device

Abstract

The present invention discloses a plate bending device, including a workbench, a fixed seat is provided on the workbench, a bending table is provided on the fixed seat, a V-shaped bending groove is provided on the top of the bending table, a bending mechanism is provided above the bending table; sliding channels are provided on both sides of the bending table, the two sliding channels are respectively located on both sides of the bending groove, and the two sliding channels are connected to the bending groove, a stamping forming block is provided for sliding in the sliding channel, a sliding driving mechanism is provided on one side of the stamping forming block, and a stamping inclined surface is provided on the other side of the stamping forming block, and the stamping inclined surface is parallel to the inclined surface of the bending groove. The present invention first uses the bending mechanism to bend the plate, and then uses the stamping forming block to apply a stamping force to the bending part of the plate, so as to promote the forming of the plate and reduce the rebound amount of the plate. It can reduce the subsequent processes of the lamp pole, effectively improve the production efficiency of the lamp pole, and help increase the processing accuracy of the lamp pole.

Description

Technical Field

[0001] The invention belongs to the technical field of lamp pole processing, and in particular relates to a plate bending device. Background Art

[0002] The production process of lamp poles mainly includes the following steps: (1) Cutting: Before cutting the plate, adjust the size and angle of the cutting machine to match the required size of the lamp pole; (2) Bending: Adjust the depth of the bending machine to ensure the placement of the plate, and complete the bending of the equilateral octagonal lamp pole by multiple downward pressures of the bending machine; (3) Welding: During welding, the equilateral octagonal pipe seam after bending is submerged arc welded to obtain a tubular lamp pole; (4) Repair and polishing: Repair and polish the lamp pole to make the surface of the lamp pole smooth and flat; (5) Galvanizing: After the lamp pole is cleaned, put the lamp pole into the galvanizing pool for galvanizing. Among them, bending is a key process in the production of lamp poles. The quality of bending directly affects the quality of the lamp pole.

[0003] Bending is the process of driving the slider downward through mechanical force or hydraulic pressure, forcing the upper and lower dies to load the sheet, causing the sheet to deform, thereby obtaining a workpiece with the required bending angle. Bending springback is when the upper die leaves the sheet and releases the pressure, the sheet will produce elastic deformation, so that the final shape of the sheet does not match the expected shape, affecting the processing accuracy of the sheet. There are two main reasons for the springback: First, when the inner and outer edge surfaces of the sheet enter the plastic deformation state, while the center of the sheet is still in the elastic state, when the external force load is removed from the sheet, the springback phenomenon occurs; second, when the metal is plastically deformed, it is always accompanied by elastic deformation. Therefore, when the sheet is bent, even if the inner and outer layers are all in the plastic state, the springback phenomenon will still occur after the external force load is removed.

[0004] Prior art CN113634638A discloses a lamp pole bending machine, which relates to the technical field of bending machines, including a workbench, a bending table is fixedly installed on the top of the workbench, baffles are fixedly installed on both sides of the bending table, fixing bolts are sleeved inside the baffles, a fixing plate is fixedly installed on one side of the fixing bolts, a lower mold is arranged inside the fixing plate, a first bearing is fixedly installed on the inner wall of the workbench, a rotating rod is fixedly installed inside the first bearing, a driving gear is sleeved outside the rotating rod, a second bearing is fixedly installed at the bottom of the bending table, a threaded rod is sleeved inside the second bearing, a driven gear is fixedly installed at the bottom of the threaded rod, a telescopic sleeve is sleeved outside the threaded rod, and a support plate is fixedly installed on the top of the telescopic sleeve. The lamp pole bending machine has the advantage of being able to change the position of the mold according to the taper shape of different lamp poles, solving the problem that lamp poles with different tapers require a set of special molds, which makes the lamp pole bending machine have certain usage limitations. When the above-mentioned prior art lamp pole bending machine is used, the rebound problem of the plate during bending is generally handled by the operator's experience, mainly by manually modifying the compensation data to improve the processing accuracy. However, the plate has a large angle of rebound after bending, and the bending size is unstable. The operator needs to adjust the plate many times, which has low production efficiency and it is difficult to ensure the dimensional accuracy of the plate bending. Summary of the invention

[0005] The purpose of the present invention is to provide a plate bending device to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a sheet bending device, comprising a workbench, a fixed seat is provided on the workbench, a bending table is provided on the fixed seat, a V-shaped bending groove is provided on the top of the bending table, a bending mechanism is provided above the bending table, and the bending mechanism cooperates with the bending groove to bend the sheet; sliding channels are provided on both sides of the bending table, and the two sliding channels are respectively located on both sides of the bending groove, and the two sliding channels are connected to the bending groove, and a stamping forming block is slidably provided in the sliding channel, a sliding driving mechanism is provided on one side of the stamping forming block, and a stamping inclined surface is provided on the other side of the stamping forming block, and the stamping inclined surface is parallel to the inclined surface of the bending groove, and the sliding driving mechanism is used to drive the stamping forming block to apply stamping pressure to the bending part of the sheet to reduce the amount of rebound of the sheet.

[0007] As an optional implementation of the above technical solution, the bending mechanism includes a bending pressure head, a mounting plate and a lifting drive mechanism. The bending pressure head is arranged on the mounting plate, the bending pressure head is located above the bending groove, and the mounting plate is connected to the movable end of the lifting drive mechanism.

[0008] As an optional implementation of the above technical solution, the lifting drive mechanism includes a lifting hydraulic cylinder, a fixed end of the lifting hydraulic cylinder is connected to a support frame, and a movable end of the lifting hydraulic cylinder is connected to a mounting plate.

[0009] As an optional implementation of the above technical solution, the bending press head is equipped with a stroke detection mechanism.

[0010] As an optional implementation of the above technical solution, a bending degree detection mechanism is provided on the workbench, and the bending degree detection mechanism is used to detect the actual bending degree α of the plate after rebound. The bending degree detection mechanism is connected to the control center, and the sliding drive mechanism and the lifting drive mechanism are both connected to the control center.

[0011] As an optional implementation of the above technical solution, the control center is provided with an error value calculation module, and the error value calculation module is used to compare and calculate the actual bending degree α of the plate with the preset bending degree θ to obtain the bending degree error value e of the plate;

[0012] If the bending error value e≤error range value A, stop bending and stamping the sheet;

[0013] If the error range value A<bending error value e<error range value B, the control center controls the lifting drive mechanism to press the sheet through the bending pressure head, and controls the sliding drive mechanism to adjust the punching force of the punching block, so that the punching block repeatedly punches the sheet;

[0014] If the error range value B≤bending error value e, the control center controls the lifting drive mechanism to adjust the pressure of the bending pressure head so that the bending pressure head repeatedly bends the sheet, and controls the sliding drive mechanism to adjust the punching pressure of the stamping block so that the stamping block repeatedly stamps the sheet.

[0015] As an optional implementation of the above technical solution, a sliding block is provided at the bottom of the stamping block, and a limiting sliding groove adapted to the sliding block is provided on the inner wall of the sliding channel.

[0016] As an optional implementation of the above technical solution, the limiting sliding groove is dovetail-shaped.

[0017] As an optional implementation of the above technical solution, the sliding drive mechanism includes a sliding hydraulic cylinder, which is arranged on a fixed seat, and the movable end of the sliding hydraulic cylinder is connected to the stamping block.

[0018] As an optional implementation of the above technical solution, the workbench includes a frame and a work panel, the work panel is arranged on the frame, and the fixing seat is arranged on the work panel.

[0019] The beneficial effects of the present invention are:

[0020] The present invention first uses a bending mechanism to bend the plate, and then uses a stamping block to apply a stamping force to the bent portion of the plate. The bending mechanism applies pressure to the inner side of the plate, and the stamping block applies a stamping force to the outer side of the plate, thereby promoting the forming of the plate and reducing the amount of springback of the plate. The subsequent processes of the lamp pole can be reduced, the production efficiency of the lamp pole can be effectively improved, and it is beneficial to increase the processing accuracy of the lamp pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front structural schematic diagram of a plate bending device in one embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of the side structure of a plate bending device in one embodiment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of a bending table and a stamping forming block in one embodiment of the present invention.

[0024] In the figure: 1-workbench; 2-fixed seat; 3-bending table; 4-bending groove; 5-stamping block; 6-sliding drive mechanism; 7-bending pressure head; 8-mounting plate; 9-lifting drive mechanism; 10-support frame; 11-bending degree detection mechanism; 12-slider; 13-limiting slide groove. DETAILED DESCRIPTION

[0025] Example 1

[0026] like Figure 1 As shown, this embodiment provides a plate bending device, including a workbench 1, a fixed seat 2 is provided on the workbench 1, the fixed seat 2 is fixed on the workbench 1, a bending table 3 is provided on the fixed seat 2, the bending table 3 is located in the middle of the fixed seat 2, and a V-shaped bending groove 4 is provided on the top of the bending table 3 along its length direction, and the bending groove 4 has a left inclined surface and a right inclined surface, and the left inclined surface and the right inclined surface maintain a suitable angle, so as to facilitate bending the plate to form a suitable angle. Among them, the workbench 1 includes a frame and a working panel, the working panel is arranged on the frame, and the fixed seat 2 is arranged on the working panel.

[0027] A bending mechanism is provided above the bending table 3, and the bending mechanism cooperates with the bending groove 4 to bend the plate. The plate to be bent is placed on the bending table 3, and the bending mechanism can move up and down and apply pressure to the plate on the bending table 3, thereby bending the plate.

[0028] Sliding channels are provided on both sides of the bending table 3. The two sliding channels are respectively located on both sides of the bending groove 4, and the two sliding channels are connected to the bending groove 4. A stamping block 5 is slidably provided in the sliding channel. The stamping block 5 can slide along the sliding channel and apply a stamping force to the sheet in the bending groove 4. A sliding drive mechanism 6 is provided on one side of the stamping block 5, and a stamping inclined surface is provided on the other side of the stamping block 5. The stamping inclined surface is parallel to the inclined surface of the bending groove 4. The sliding drive mechanism 6 is used to drive the stamping block 5 to apply a stamping force to the bending part of the sheet to reduce the rebound amount of the sheet.

[0029] When the plate is bent, the sliding drive mechanism 6 drives the stamping forming block 5 to slide along the sliding channel so that the stamping inclined surface and the inclined surface of the bending groove 4 are on the same plane, which is convenient for bending the plate. When the bending mechanism presses the plate into the bending groove 4 for bending, the bending mechanism presses the plate tightly, and the sliding drive mechanism 6 drives the stamping forming block 5 to slide along the sliding channel so that the stamping forming block 5 is away from the plate, and then the sliding drive mechanism 6 drives the stamping forming block 5 to approach the plate, so that the stamping forming block 5 applies a stamping pressure to the bending part of the plate, promotes the forming of the plate, and reduces the amount of rebound of the plate.

[0030] The present invention first uses a bending mechanism to bend the plate, and then uses a stamping block 5 to apply a stamping force to the bent portion of the plate. The bending mechanism applies pressure to the inner side of the plate, and the stamping block applies a stamping force to the outer side of the plate, thereby promoting the forming of the plate and reducing the amount of springback of the plate. This can reduce the subsequent processes of the lamp pole, effectively improve the production efficiency of the lamp pole, and help increase the processing accuracy of the lamp pole.

[0031] Example 2

[0032] This embodiment is optimized on the basis of embodiment 1. Figure 1 and Figure 2 As shown, specifically, the bending mechanism includes a bending pressure head 7, a mounting plate 8 and a lifting drive mechanism 9. The bending pressure head 7 is arranged on the mounting plate 8. The bending pressure head 7 is located above the bending groove 4. The bending pressure head 7 matches the bending groove 4 to facilitate bending the plate. The mounting plate 8 is connected to the movable end of the lifting drive mechanism 9. Among them, the lifting drive mechanism 9 includes a lifting hydraulic cylinder, the fixed end of the lifting hydraulic cylinder is connected to a support frame 10, and the movable end of the lifting hydraulic cylinder is connected to the mounting plate 8. The bending pressure head 7 is equipped with a stroke detection mechanism to detect the stroke of the bending pressure head 7.

[0033] The support frame 10 is installed on the workbench 1, the top of the lifting hydraulic cylinder is installed on the support frame 10, the bottom of the lifting hydraulic cylinder is connected to the mounting plate 8, and the bending pressure head 7 is fixed on the mounting plate 8. The lifting hydraulic cylinder can perform lifting and lowering activities, so that the bending pressure head 7 applies pressure to the sheet, presses the sheet into the bending groove 4, and realizes the bending function of the sheet. When the sheet is bent, the position of the bending pressure head 7 remains stationary, and the stamping forming block 5 applies stamping pressure to the bending part of the sheet, thereby reducing the rebound amount of the sheet. By repeating the operation, the actual bending degree α of the sheet can be close to the preset bending degree θ.

[0034] Example 3

[0035] This embodiment is optimized on the basis of embodiment 2. Specifically, a bending degree detection mechanism 11 is provided on the workbench 1. The bending degree detection mechanism 11 is used to detect the actual bending degree α of the plate after rebound. The bending degree detection mechanism 11 is connected to the control center, and the sliding drive mechanism 6 and the lifting drive mechanism 9 are both connected to the control center. The bending degree detection mechanism 11 uses a camera recognition device. The bending degree detection mechanism 11 sends the detected actual bending degree α to the control center. The control center controls the sliding drive mechanism 6 and the lifting drive mechanism 9 to perform corresponding actions. Through multiple bending and stamping, the bending degree of the plate meets the requirements.

[0036] The control center is provided with an error value calculation module, which is used to compare and calculate the actual bending degree α of the plate with the preset bending degree θ to obtain the bending degree error value e of the plate. The control center controls the sliding drive mechanism 6 and the lifting drive mechanism 9 to perform corresponding actions according to the bending degree error value e to bend the plate. If the bending degree error value e≤the error range value A, the bending degree of the plate meets the requirement, and the bending and stamping of the plate are stopped.

[0037] If the error range value A<bending error value e<error range value B, the control center controls the lifting drive mechanism 9 to press the sheet through the bending press head 7, and controls the sliding drive mechanism 6 to adjust the punching force of the punching block 5, so that the punching block 5 repeatedly punches the sheet. Error range value A<bending error value e<error range value B, at this time, it is also necessary to make a small adjustment to the actual bending degree α of the sheet, press the sheet through the bending press head 7, and then use the punching block 5 to repeatedly punch the sheet until the bending error value e of the sheet is ≤error range value A, so that the bending degree of the sheet meets the requirements.

[0038] If the error range value B is less than or equal to the bending error value e, the control center controls the lifting drive mechanism 9 to adjust the pressure of the bending head 7 so that the bending head 7 repeatedly bends the sheet, and controls the sliding drive mechanism 6 to adjust the punching force of the stamping block 5 so that the stamping block 5 repeatedly punches the sheet. The error range value A and the error range value B are set according to actual needs, and the bending error value e is greater than or equal to the error range value B. At this time, it is also necessary to make a significant adjustment to the actual bending degree α of the sheet, increase the pressure of the bending head 7 so that the bending head 7 repeatedly bends the sheet, and then increase the punching force of the stamping block 5 so that the stamping block 5 repeatedly punches the sheet, until the bending error value e of the sheet is between the error range value A and the error range value B.

[0039] Example 4

[0040] This embodiment is optimized on the basis of embodiment 1. Figure 3 As shown, specifically, a slider 12 is provided at the bottom of the stamping block 5, and a limiting slide groove 13 adapted to the slider 12 is provided on the inner wall of the sliding channel. Preferably, the limiting slide groove 13 is dovetail-shaped. The sliding drive mechanism 6 includes a sliding hydraulic cylinder, which is arranged on the fixed seat 2, and the movable end of the sliding hydraulic cylinder is connected to the stamping block 5. The sliding hydraulic cylinder is arranged on the fixed seat 2, and the sliding hydraulic cylinder drives the stamping block 5 to slide along the sliding channel, thereby applying a stamping force to the bending part of the plate.

[0041] Example 5

[0042] like Figure 1-Figure 3 As shown, this embodiment provides a plate bending device, including a workbench 1, a fixed seat 2 is provided on the workbench 1, the fixed seat 2 is fixed on the workbench 1, a bending table 3 is provided on the fixed seat 2, the bending table 3 is located in the middle of the fixed seat 2, and a V-shaped bending groove 4 is provided on the top of the bending table 3 along its length direction, and the bending groove 4 has a left inclined surface and a right inclined surface, and the left inclined surface and the right inclined surface maintain a suitable angle, so as to facilitate bending the plate to form a suitable angle. Among them, the workbench 1 includes a frame and a working panel, the working panel is arranged on the frame, and the fixed seat 2 is arranged on the working panel.

[0043] A bending mechanism is provided above the bending table 3, and the bending mechanism cooperates with the bending groove 4 to bend the sheet. The sheet to be bent is placed on the bending table 3, and the bending mechanism can move up and down, and exert pressure on the sheet on the bending table 3, so as to bend the sheet. Sliding channels are provided on both sides of the bending table 3, and the two sliding channels are respectively located on both sides of the bending groove 4, and the two sliding channels are connected to the bending groove 4. A stamping block 5 is provided to slide in the sliding channel, and the stamping block 5 can slide along the sliding channel and exert stamping pressure on the sheet in the bending groove 4.

[0044] A sliding drive mechanism 6 is provided on one side of the stamping block 5, and a stamping bevel is provided on the other side of the stamping block 5. The stamping bevel is parallel to the bevel of the bending groove 4. The sliding drive mechanism 6 is used to drive the stamping block 5 to apply a stamping force to the bending part of the plate to reduce the rebound amount of the plate. When the plate is bent, the sliding drive mechanism 6 drives the stamping block 5 to slide along the sliding channel so that the stamping bevel and the bevel of the bending groove 4 are located on the same plane, which is convenient for the bending of the plate. When the bending mechanism presses the plate into the bending groove 4 for bending, the bending mechanism presses the plate tightly, and the sliding drive mechanism 6 drives the stamping block 5 to slide along the sliding channel to make the stamping block 5 away from the plate, and then the sliding drive mechanism 6 drives the stamping block 5 close to the plate, so that the stamping block 5 applies a stamping force to the bending part of the plate, promotes the forming of the plate, and reduces the rebound amount of the plate.

[0045] The present invention first uses a bending mechanism to bend the plate, and then uses a stamping block 5 to apply a stamping force to the bent portion of the plate. The bending mechanism applies pressure to the inner side of the plate, and the stamping block applies a stamping force to the outer side of the plate, thereby promoting the forming of the plate and reducing the amount of springback of the plate. This can reduce the subsequent processes of the lamp pole, effectively improve the production efficiency of the lamp pole, and help increase the processing accuracy of the lamp pole.

[0046] like Figure 1 and Figure 2 As shown, in this embodiment, the bending mechanism includes a bending pressure head 7, a mounting plate 8 and a lifting drive mechanism 9. The bending pressure head 7 is arranged on the mounting plate 8. The bending pressure head 7 is located above the bending groove 4. The bending pressure head 7 matches the bending groove 4 to facilitate bending the plate. The mounting plate 8 is connected to the movable end of the lifting drive mechanism 9. Among them, the lifting drive mechanism 9 includes a lifting hydraulic cylinder, the fixed end of the lifting hydraulic cylinder is connected to a support frame 10, and the movable end of the lifting hydraulic cylinder is connected to the mounting plate 8.

[0047] The support frame 10 is installed on the workbench 1, the top of the lifting hydraulic cylinder is installed on the support frame 10, the bottom of the lifting hydraulic cylinder is connected to the mounting plate 8, and the bending pressure head 7 is fixed on the mounting plate 8. The lifting hydraulic cylinder can perform lifting and lowering activities, so that the bending pressure head 7 applies pressure to the sheet, presses the sheet into the bending groove 4, and realizes the bending function of the sheet. When the sheet is bent, the position of the bending pressure head 7 remains stationary, and the stamping forming block 5 applies stamping pressure to the bending part of the sheet, thereby reducing the rebound amount of the sheet. By repeating the operation, the actual bending degree α of the sheet can be close to the preset bending degree θ.

[0048] In this embodiment, a bending degree detection mechanism 11 is provided on the workbench 1. The bending degree detection mechanism 11 is used to detect the actual bending degree α of the plate after rebound. The bending degree detection mechanism 11 is connected to the control center, and the sliding drive mechanism 6 and the lifting drive mechanism 9 are both connected to the control center. The bending degree detection mechanism 11 uses a camera recognition device. The bending degree detection mechanism 11 sends the detected actual bending degree α to the control center, and the control center controls the sliding drive mechanism 6 and the lifting drive mechanism 9 to perform corresponding actions. Through multiple bending and stamping, the bending degree of the plate meets the requirements.

[0049] In this embodiment, the control center is provided with an error value calculation module, which is used to compare and calculate the actual bending degree α of the plate with the preset bending degree θ to obtain the bending degree error value e of the plate. The control center controls the sliding drive mechanism 6 and the lifting drive mechanism 9 to perform corresponding actions according to the bending degree error value e to bend the plate. Among them, if the bending degree error value e≤the error range value A, the bending degree of the plate meets the requirement, and the bending and stamping of the plate are stopped.

[0050] If the error range value A<bending error value e<error range value B, the control center controls the lifting drive mechanism 9 to press the sheet through the bending press head 7, and controls the sliding drive mechanism 6 to adjust the punching force of the punching block 5, so that the punching block 5 repeatedly punches the sheet. Error range value A<bending error value e<error range value B, at this time, it is also necessary to make a small adjustment to the actual bending degree α of the sheet, press the sheet through the bending press head 7, and then use the punching block 5 to repeatedly punch the sheet until the bending error value e of the sheet is ≤error range value A, so that the bending degree of the sheet meets the requirements.

[0051] If the error range value B is less than or equal to the bending error value e, the control center controls the lifting drive mechanism 9 to adjust the pressure of the bending head 7 so that the bending head 7 repeatedly bends the sheet, and controls the sliding drive mechanism 6 to adjust the punching force of the stamping block 5 so that the stamping block 5 repeatedly punches the sheet. The error range value A and the error range value B are set according to actual needs, and the bending error value e is greater than or equal to the error range value B. At this time, it is also necessary to make a significant adjustment to the actual bending degree α of the sheet, increase the pressure of the bending head 7 so that the bending head 7 repeatedly bends the sheet, and then increase the punching force of the stamping block 5 so that the stamping block 5 repeatedly punches the sheet, until the bending error value e of the sheet is between the error range value A and the error range value B.

[0052] like Figure 3As shown, in this embodiment, a slider 12 is provided at the bottom of the stamping block 5, and a limiting slide groove 13 adapted to the slider 12 is provided on the inner wall of the sliding channel. Preferably, the limiting slide groove 13 is dovetail-shaped. Among them, the sliding drive mechanism 6 includes a sliding hydraulic cylinder, which is arranged on the fixed seat 2, and the movable end of the sliding hydraulic cylinder is connected to the stamping block 5. The sliding hydraulic cylinder is fixed on the fixed seat 2, and the sliding hydraulic cylinder drives the stamping block 5 to slide along the sliding channel, thereby applying a stamping force to the bending part of the plate.

[0053] The plate bending device of the present invention is mainly used for processing lamp poles. The processing technology of the lamp poles mainly includes the following steps: (1) cutting the plate: cutting the plate to a suitable size so that it matches the size of the required lamp pole; (2) bending: placing the plate on the bending table 3, bending the plate through the bending mechanism and the bending groove 4, and then using the stamping forming block 5 to apply a stamping force to the bending part of the plate to promote the forming of the plate and reduce the rebound of the plate; then detecting the actual bending degree α of the plate, and obtaining the bending degree error value e by calculation. Based on the bending degree error value e, the control center controls the sliding The driving mechanism 6 and the lifting driving mechanism 9 perform corresponding actions to make the bending degree of the plate meet the requirements; the bending of the equilateral octagonal lamp pole is completed through multiple bending processes; (3) Welding: During welding, the equilateral octagonal pipe seam after bending is subjected to submerged arc welding to obtain a tubular lamp pole; (4) Repair and polishing: Repair and polish the lamp pole to make the surface of the lamp pole flat and smooth; (5) Installation of other components: including installation of the base plate, door opening and bending fork, etc.; (6) Galvanizing: After cleaning the lamp pole, put the lamp pole into the galvanizing pool for galvanizing; (7) Plastic spraying and inspection. The present invention can effectively improve the bending accuracy and production efficiency of the lamp pole, and the product consistency is good.

[0054] In the description of the present invention, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. Under the condition that there is no contradiction, those skilled in the art may combine the features of different embodiments. The protection scope of the present invention is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present invention, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the protection scope of the present invention.

Claims

1. A plate bending device, comprising a workbench (1), wherein a fixing seat (2) is provided on the workbench (1), characterized in that: The fixed seat (2) is provided with a bending table (3), the top of the bending table (3) is provided with a V-shaped bending groove (4), and a bending mechanism is provided above the bending table (3), and the bending mechanism cooperates with the bending groove (4) to bend the plate; sliding channels are provided on both sides of the bending table (3), and the two sliding channels are respectively located on both sides of the bending groove (4), and the two sliding channels are connected to the bending groove (4), and a stamping block (5) is slidably provided in the sliding channel, and a sliding drive mechanism (6) is provided on one side of the stamping block (5), and a stamping inclined surface is provided on the other side of the stamping block (5), and the stamping inclined surface is parallel to the inclined surface of the bending groove (4), and the sliding drive mechanism (6) is used to drive the stamping block (5) to apply a stamping force to the bending portion of the plate to reduce the amount of springback of the plate; The bending mechanism comprises a bending pressure head (7), a mounting plate (8) and a lifting drive mechanism (9); the bending pressure head (7) is arranged on the mounting plate (8), the bending pressure head (7) is located above the bending groove (4), and the mounting plate (8) is connected to the movable end of the lifting drive mechanism (9); The workbench (1) is provided with a bending degree detection mechanism (11), and the bending degree detection mechanism (11) is used to detect the actual bending degree α of the plate after rebound. The bending degree detection mechanism (11) is connected to a control center, and the sliding drive mechanism (6) and the lifting drive mechanism (9) are both connected to the control center; The control center is provided with an error value calculation module, and the error value calculation module is used to compare and calculate the actual bending degree α of the plate with the preset bending degree θ to obtain the bending degree error value e of the plate; If the bending error value e≤error range value A, stop bending and stamping the sheet; If the error range value A<bending error value e<error range value B, the control center controls the lifting drive mechanism (9) to press the plate through the bending pressure head (7), and controls the sliding drive mechanism (6) to adjust the punching force of the punching block (5), so that the punching block (5) repeatedly punches the plate; If the error range value B is less than or equal to the bending error value e, the control center controls the lifting drive mechanism (9) to adjust the pressure of the bending pressure head (7) so that the bending pressure head (7) repeatedly bends the plate, and controls the sliding drive mechanism (6) to adjust the punching force of the punching forming block (5) so that the punching forming block (5) repeatedly punches the plate.

2. The sheet bending device according to claim 1, characterized in that: The lifting drive mechanism (9) comprises a lifting hydraulic cylinder, the fixed end of the lifting hydraulic cylinder is connected to a support frame (10), and the movable end of the lifting hydraulic cylinder is connected to a mounting plate (8).

3. The sheet bending device according to claim 1, characterized in that: The bending pressure head (7) is equipped with a stroke detection mechanism.

4. The sheet bending device according to claim 1, characterized in that: A sliding block (12) is provided at the bottom of the punching block (5), and a limiting sliding groove (13) adapted to the sliding block (12) is provided on the inner wall of the sliding channel.

5. The sheet bending device according to claim 4, characterized in that: The limiting sliding groove (13) is dovetail-shaped.

6. The sheet bending device according to claim 1, characterized in that: The sliding drive mechanism (6) comprises a sliding hydraulic cylinder, which is arranged on a fixed seat (2), and the movable end of the sliding hydraulic cylinder is connected to the stamping block (5).

7. The sheet bending device according to claim 1, characterized in that: The workbench (1) comprises a frame and a work panel, the work panel is arranged on the frame, and the fixing seat (2) is arranged on the work panel.

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