Plate bending machine for plate processing

Abstract

The invention belongs to the technical field of plate processing, and particularly relates to a plate bending machine for plate processing, which comprises a bending platform, a bending assembly and a trigger mechanism, a bending groove is formed in the surface of the bending platform; the bending assembly is installed on the bending platform and arranged on the upper side of the bending groove, the bending assembly comprises an installation frame, an air cylinder is installed on the installation frame, the free end of the air cylinder is connected with a pressure maintaining type bending mechanism, and the pressure maintaining type bending mechanism is used for pressing and bending a plate; the triggering mechanism is installed in the bending groove and used for improving the plate bending effect by being matched with the pressure maintaining type bending mechanism, the pressure maintaining type bending mechanism comprises a base, and the base is connected to the free end of the air cylinder. According to the bending device, the rebound phenomenon of the plate after bending can be effectively avoided, then the bending quality of one-time forming of the plate can be guaranteed, meanwhile, the bending efficiency of the plate can be greatly improved, and the influence on subsequent production of a square battery hard package shell is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of sheet metal processing, and particularly relates to a sheet metal bending machine for sheet metal processing. Background Art

[0002] With the rapid development of the new energy vehicle industry, lithium batteries have been widely used. The battery outer shell refers to the protective shell outside the battery, which is mainly used to protect the internal structure of the battery and prevent the battery from being damaged by the external environment. The battery outer shell is divided into two types: soft package and hard package. Among them, the hard package shell of the battery is made of metal or other hard plates through a bending process, and is used to fit square and cylindrical batteries. The hard package shell of the battery has the advantages of high mechanical strength, good heat dissipation performance, and easy processing.

[0003] When bending a sheet into a hard package shell of a square battery, especially when a 90° bend is required, due to the elastic deformation of the sheet and the stress release during the bending process, when the external force is unloaded or released, the sheet is prone to springback. Moreover, the existing bending equipment lacks a corresponding anti-springback mechanism, resulting in the need for workers to perform secondary bending or manual bending on the sheet, which not only easily reduces the bending efficiency of the sheet, but also easily reduces the bending quality of the sheet, and will also affect the subsequent production of the hard package shell of the square battery.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a sheet metal bending machine for sheet metal processing.

[0005] The information disclosed in this background art section is only for increasing the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a sheet metal bending machine for sheet metal processing, which can solve the problems of poor bending effect and low efficiency of existing sheets when producing hard package shells of square batteries.

[0007] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0008] A sheet metal bending machine for sheet metal processing, comprising: a bending platform, a bending assembly, and a triggering mechanism;

[0009] The tabletop of the bending platform is provided with a bending groove;

[0010] The bending assembly is installed on the bending platform and is arranged above the bending groove. The bending assembly includes a mounting frame, a cylinder is installed on the mounting frame, and a pressure-maintaining bending mechanism is connected to the free end of the cylinder. The pressure-maintaining bending mechanism is used to press and bend the sheet;

[0011] The triggering mechanism is installed in the bending groove. By cooperating with the pressure-maintaining bending mechanism, the triggering mechanism is used to improve the bending effect of the sheet.

[0012] In one or more embodiments of the present invention, the pressure-maintaining bending mechanism includes a base, which is connected to the free end of the cylinder. The base is used to press the sheet and is also used to install the lifting seat.

[0013] A pair of adjusting grooves are provided on the side wall of the base. The adjusting grooves are used to guide the lifting of the lifting seat. When the lifting seat descends and enters the bending groove, the lifting seat is misaligned with the base, and then the sheet can be bent to process the hard shell of the square battery.

[0014] A screw rod and a guiding rod are respectively arranged in a pair of the adjusting grooves. The screw rod is rotatably connected in the adjusting groove, and the guiding rod is fixedly connected in the adjusting groove.

[0015] In one or more embodiments of the present invention, sliders are arranged on both the screw rod and the guiding rod. The sliders are used to connect the lifting seat. The sliders are threadedly connected to the screw rod and slidably connected to the guiding rod. When the screw rod rotates, the sliders move in the adjusting groove under the action of the thread, and then the lifting seat can be driven to lift and lower to meet the bending requirements of the sheet.

[0016] A lifting seat is connected between a pair of the sliders. The lifting seat is arranged on one side of the base and above the bending groove. When the lifting seat is misaligned with the base, the sheet can be bent.

[0017] A motor is installed on the base. The output end of the motor is connected to the screw rod. When the motor operates, the motor can drive the screw rod to rotate, and then the slider can be driven to move in the adjusting groove to drive the lifting seat to lift and lower.

[0018] In one or more embodiments of the present invention, a pair of anti-deviation rods are slidably connected in the lifting seat. The anti-deviation rods are used to guide the movement of the movable bending plate.

[0019] A movable bending plate is fixedly connected between a pair of the anti-deviation rods. The movable bending plate is arranged below the lifting seat. When the sheet is bent at 90°, the movable bending plate is not blocked by the sheet and moves away from the lifting seat under the action of gravity. The movable bending plate cooperates with the triggering mechanism to fix the end of the sheet, extend the bending time of the sheet, and avoid the rebound phenomenon of the sheet due to elastic deformation or stress release when the lifting seat rises in the bending groove, so as to ensure the bending effect of the sheet.

[0020] A pair of clamping grooves are provided on the bottom surface of the movable bending plate for the insertion of the linkage rod, and then the end of the sheet can be pressure-maintained by using the movable bending plate to avoid the rebound of the sheet.

[0021] One side of the lifting seat close to the base is flush with one side of the movable bending plate close to the base, so as to ensure the pressure-holding effect of the movable bending plate on the plate.

[0022] In one or more embodiments of the present invention, one end of the anti-deviation rod located inside the lifting seat is connected with a limiting plate. The limiting plate can be used to limit the anti-deviation rod to prevent the anti-deviation rod from completely sliding out of the lifting cavity. An lifting cavity matching the limiting plate is arranged inside the lifting seat.

[0023] A tension spring is connected between the top wall of the lifting cavity and the limiting plate. The tension spring is used to pull the movable bending plate away from the trigger mechanism.

[0024] In one or more embodiments of the present invention, the trigger mechanism includes a bearing plate. The horizontal cross-sectional area of the bearing plate is larger than the horizontal cross-sectional area of the movable bending plate. The bearing plate is used to connect a plurality of linkage rods.

[0025] A pair of linkage rods are fixedly connected to the bearing plate. One end of the linkage rod can be inserted into the engaging groove. When the linkage rod is inserted into the engaging groove, the movable bending plate can be fixed to ensure the pressure-holding effect of the movable bending plate on the end of the plate.

[0026] The other end of the linkage rod is slidably connected to the bottom wall of the bending groove, so that the bearing plate can lift in the bending groove.

[0027] In one or more embodiments of the present invention, an installation cavity is arranged inside the bending platform. The installation cavity is arranged below the bending groove. One end of the linkage rod is arranged inside the installation cavity and connected with a trigger plate. A control board is installed inside the installation cavity. A pair of second pressure sensors are installed on the top surface of the control board. The pair of second pressure sensors respectively correspond to the pair of trigger plates. When the plate is bent at 90°, the movable bending plate is not blocked by the plate and moves away from the lifting seat under the action of gravity. The descending movable bending plate will impact the bearing plate and drive the bearing plate to drive the linkage rod and the trigger plate to move down a certain distance. The descending trigger plate will generate a squeezing force on the second pressure sensor, and the control board will convert the squeezing force received by the second pressure sensor into an electrical signal.

[0028] In one or more embodiments of the present invention, an elastic sleeve is arranged outside the linkage rod. The elastic sleeve is arranged between the bearing plate and the bottom wall of the bending groove. When the bearing plate moves down, the elastic sleeve is squeezed by the bearing plate. At the same time, the elastic sleeve has a reverse acting force on the bearing plate, which is used to increase the resistance of the bearing plate to move down and make the bearing plate tend to be stationary.

[0029] In one or more embodiments of the present invention, a guiding cavity is provided on the side wall at the port of the bending groove, and a guiding and bending assisting mechanism is installed in the guiding cavity. The guiding and bending assisting mechanism can further improve the bending effect of the plate, avoid the springback of the plate, and ensure the processing quality of the subsequent hard package shell of the square battery.

[0030] A cover plate is installed at the upper opening of the guiding cavity, and the cover plate is flush with the table top of the bending platform. The cover plate is used to protect the guiding and bending assisting mechanism and will not affect the normal bending of the plate.

[0031] In one or more embodiments of the present invention, the guiding and bending assisting mechanism includes a U-shaped frame. The length of the U-shaped frame is equal to the width of the guiding cavity, and the U-shaped frame is used to install guiding wheels.

[0032] Guiding wheels are rotatably connected to the U-shaped frame. The outer wall of the guiding wheels is flush with the cover plate and the side wall of the bending groove, converting the static friction at the bending part of the plate into dynamic friction, which not only facilitates the bending of the plate but also avoids damage to the bending part of the plate and ensures the bending effect of the plate.

[0033] A cavity is provided inside the guiding wheel, and a metal rod is fixedly connected inside the cavity for fixing the heating wire. The heating wire is wound around the metal rod, and the heating wire is electrically connected to the control board. When the second pressure sensor is squeezed by the trigger board, the control board converts the squeezing force received by the second pressure sensor into an electrical signal and makes the heating wire operate. The heating wire generates heat and transfers it to the bending part of the plate through the guiding wheel to further improve the bending effect of the plate and avoid the springback phenomenon when the external force is unloaded or released.

[0034] Compared with the prior art, the plate bending machine for plate processing of the present invention can effectively avoid the springback phenomenon of the plate after bending, thereby ensuring the bending quality of the one-time forming of the plate. At the same time, it can also greatly improve the bending efficiency of the plate and avoid affecting the production of the subsequent hard package shell of the square battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0036] Figure 1 It is a three-dimensional view of the unused state of a plate bending machine for plate processing in an embodiment of the present invention.

[0037] Figure 2 Side view sectional view of an unused state of a sheet bending machine for sheet processing in an embodiment of the present invention;

[0038] Figure 3 It is Figure 2 Schematic diagram of the structure at A in;

[0039] Figure 4 It is Figure 2 Schematic diagram of the structure at B in;

[0040] Figure 5 It is Figure 2 Schematic diagram of the structure at C in;

[0041] Figure 6 Stereogram of a pressure-holding type bending mechanism in an embodiment of the present invention;

[0042] Figure 7 Sectional view of a used state of a sheet bending machine for sheet processing in an embodiment of the present invention;

[0043] Figure 8 It is Figure 7 Schematic diagram of the structure at D in;

[0044] Figure 9 Stereogram of a sealing cover plate in an embodiment of the present invention;

[0045] Figure 10 Stereogram of a guiding and bending auxiliary mechanism in an embodiment of the present invention.

[0046] Description of main reference numerals:

[0047] 1 - Bending platform, 101 - Bending groove, 102 - Installation cavity, 1021 - First pressure sensor, 103 - Control board, 1031 - Second pressure sensor, 104 - Guiding cavity, 105 - Sealing cover plate, 1051 - Limiting strip, 2 - Bending assembly, 201 - Installation frame, 202 - Cylinder, 203 - Base, 204 - Adjusting groove, 205 - Lifting seat, 2051 - Lifting cavity, 206 - Motor, 207 - Anti-deviation rod, 208 - Movable bending plate, 2081 - Engaging groove, 209 - Limiting plate, 210 - Tensile spring, 3 - Trigger mechanism, 301 - Bearing plate, 302 - Linking rod, 303 - Trigger plate, 304 - Elastic sleeve, 4 - Guiding and bending auxiliary mechanism, 401 - U-shaped frame, 402 - Guiding wheel, 4021 - Metal rod, 4022 - Heating wire, 403 - Electric cylinder, 404 - Linking plate, 405 - Reinforcing column. Detailed implementation manners

[0048] To enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] As Figures 1 to 10 shown, a sheet bending machine for sheet processing in an embodiment of the present invention includes a bending platform 1, a bending assembly 2, a triggering mechanism 3, and a guiding and bending assisting mechanism 4.

[0050] Among them, a bending groove 101 is provided on the tabletop of the bending platform 1. When a flat sheet is placed on the tabletop of the bending platform 1, under the action of the pressure-holding type bending mechanism, part of the sheet will be bent into the bending groove 101, and thus the bending of the sheet can be realized.

[0051] In addition, an installation cavity 102 is provided inside the bending platform 1. The installation cavity 102 is arranged on the lower side of the bending groove 101, and the installation cavity 102 is used to install a control board 103.

[0052] Specifically, a pair of first pressure sensors 1021 are connected to the upper top wall of the installation cavity 102. The pair of first pressure sensors 1021 respectively surround a pair of linkage rods 302, and the first pressure sensors 1021 are electrically connected to the control board 103. When the lifting seat 205 rises in the bending groove 101, due to the attraction between the movable bending plate 208 and the bearing plate 301 and the gravity of the movable bending plate 208 itself, the movable bending plate 208 will not immediately leave the bearing plate 301, but first pull the tension spring 210 to elongate, that is, the tension spring 210 has a gradually increasing pulling force on the anti-deviation rod 207 and the movable bending plate 208. When the pulling force is greater than the gravity of the movable bending plate 208, the bearing plate 301 and the linkage rod 302, the tension spring 210 will pull the movable bending plate 208, the bearing plate 301 and the linkage rod 302 to move upward synchronously. When the trigger plate 303 contacts the first pressure sensor 1021, the control board 103 can convert the extrusion signal received by the first pressure sensor 1021 into an electrical signal.

[0053] In addition, a control board 103 is installed in the installation cavity 102. A pair of second pressure sensors 1031 are installed on the upper top surface of the control board 103. The first pressure sensors 1021 and the second pressure sensors 1031 are both electrically connected to the control board 103, and the pair of second pressure sensors 1031 respectively correspond to a pair of trigger plates 303. The control board 103 is used to convert the extrusion forces received by the first pressure sensors 1021 and the second pressure sensors 1031 into electrical signals to control the operation of the heating wire 4022 and the electric cylinder 403.

[0054] Preferably, the number of the first pressure sensor 1021 and the second pressure sensor 1031 in the present application is two each, which is used to ensure the triggering accuracy, that is, only when a pair of first pressure sensors 1021 or a pair of second pressure sensors 1031 are simultaneously squeezed, can the triggering be carried out. Of course, the number of the first pressure sensor 1021 and the second pressure sensor 1031 can also be set to one only.

[0055] Such as Figures 1 to 10 As shown, a guiding cavity 104 is provided on the side wall at the port of the bending groove 101, and the guiding cavity 104 is used to install the guiding and bending assisting mechanism 4.

[0056] Among them, a sealing cover plate 105 is installed at the upper opening of the guiding cavity 104, and the sealing cover plate 105 is flush with the table top of the bending platform 1, that is Figure 1 As shown in the state, the sealing cover plate 105 is used to protect the guiding and bending assisting mechanism 4, and at the same time will not affect the normal bending of the plate.

[0057] In addition, a limiting strip 1051 is connected to the lower bottom surface of the sealing cover plate 105. When the sealing cover plate 105 covers the guiding cavity 104, the limiting strip 1051 is arranged between the U-shaped frame 401 and the guiding wheel 402, and is used to limit the moving distance of the guiding wheel 402 to avoid excessive moving distance of the guiding wheel 402 and causing hard friction to the plate.

[0058] Such as Figures 1 to 10 As shown, the bending assembly 2 is installed on the bending platform 1 and is arranged on the upper side of the bending groove 101, and the bending assembly 2 is used to bend the plate.

[0059] Among them, the bending assembly 2 includes a mounting frame 201, and a cylinder 202 is installed on the mounting frame 201. The cylinder 202 is used to control the lifting of the base 203, so as to use the base 203 to press the plate to avoid the problem of the plate warping during bending.

[0060] Such as Figures 1 to 10 As shown, a pressure-holding type bending mechanism is connected to the free end of the cylinder 202, and the pressure-holding type bending mechanism is used to press and bend the plate to ensure the bending quality of the plate.

[0061] Among them, the pressure-holding type bending mechanism includes a base 203, and the base 203 is connected to the free end of the cylinder 202. The base 203 is used to press the plate to avoid the problem of the plate warping during bending, and the base 203 is also used to install the lifting seat 205.

[0062] In addition, a pair of adjusting grooves 204 are provided on the side wall of the base 203, and the adjusting grooves 204 are used to guide the lifting of the lifting seat 205. When the lifting seat 205 descends and enters the bending groove 101, the lifting seat 205 forms a dislocation with the base 203, that is Figure 7The shown state, and then the sheet material can be bent.

[0063] Specifically, a screw rod and a guiding rod are respectively arranged in a pair of adjusting grooves 204. The screw rod is rotationally connected in the adjusting groove 204, and the guiding rod is fixedly connected in the adjusting groove 204. Sliders are arranged on both the screw rod and the guiding rod. The sliders are used to connect the lifting seat 205. The sliders are in threaded connection with the screw rod and are slidably connected with the guiding rod. When the screw rod rotates, the sliders move in the adjusting groove 204 under the action of the thread, and then the lifting seat 205 can be driven to lift and lower to meet the bending requirements of the sheet material.

[0064] As Figures 1 to 10 shown, a lifting seat 205 is connected between a pair of sliders. The lifting seat 205 is arranged on one side of the base 203 and above the bending groove 101. When the lifting seat 205 is misaligned with the base 203, the sheet material can be bent.

[0065] As Figures 1 to 10 shown, a motor 206 is installed on the base 203. The output end of the motor 206 is connected to the screw rod. When the motor 206 operates, the motor 206 can drive the screw rod to rotate, and then the slider can be driven to move in the adjusting groove 204 to drive the lifting seat 205 to lift and lower.

[0066] Among them, a pair of anti-deviation rods 207 are slidably connected in the lifting seat 205. The anti-deviation rods 207 are used to guide the movement of the movable bending plate 208. A movable bending plate 208 is fixedly connected between the pair of anti-deviation rods 207. The movable bending plate 208 is arranged below the lifting seat 205. When the sheet material is bent at 90°, the movable bending plate 208 is not blocked by the sheet material and moves away from the lifting seat 205 under the action of gravity. The movable bending plate 208 fixes the bent end of the sheet material through cooperation with the triggering mechanism 3, extends the bending time of the sheet material, and avoids the rebound phenomenon of the sheet material due to elastic deformation or stress release when the lifting seat 205 rises in the bending groove 101 to ensure the bending effect of the sheet material.

[0067] In addition, a pair of engaging grooves 2081 are arranged on the bottom surface of the movable bending plate 208 for the insertion of the linkage rod 302, and then the movable bending plate 208 can be used to keep pressure on the bent end of the sheet material to avoid the rebound of the sheet material.

[0068] Specifically, the surface of the lifting seat 205 close to the base 203 is flush with the surface of the movable bending plate 208 close to the base 203. When the movable bending plate 208 keeps pressure on the bent end of the sheet material, the side wall of the lifting seat 205 can also contact the sheet material to ensure the bending effect of the sheet material.

[0069] In addition, one end of the anti-deviation rod 207 located inside the lifting seat 205 is connected with a limiting plate 209. The limiting plate 209 can be used to limit the anti-deviation rod 207 to prevent the anti-deviation rod 207 from completely sliding out of the lifting cavity 2051. A lifting cavity 2051 matching the limiting plate 209 is provided inside the lifting seat 205.

[0070] As Figures 1 to 10 shown, a tension spring 210 is connected between the top wall of the lifting cavity 2051 and the limiting plate 209. In the natural state, the tension spring 210 is stretched under the gravity of the movable bending plate 208. At this time, the movable bending plate 208 does not contact the bottom of the lifting seat 205, that is Figure 6 the state shown. When the plate is bent at 90°, the movable bending plate 208 is not blocked by the plate and moves away from the lifting seat 205 under the action of gravity, that is, it maintains the initial state. The falling movable bending plate 208 will hit the bearing plate 301 and be clamped and fixed through the linkage rod 302 and trigger the operation of the heating wire 4022 to heat the bent part of the plate to avoid the springback phenomenon caused by the elastic deformation or stress release of the plate and ensure the bending effect of the plate.

[0071] After the plate bending is completed, the tension spring 210 is also used to pull the movable bending plate 208 away from the bearing plate 301 and trigger the operation of the electric cylinder 403 at the same time, which is used to push out the bent plate by a certain distance to facilitate the staff to take out the plate.

[0072] As Figures 1 to 10 shown, the triggering mechanism 3 is installed in the bending groove 101. The triggering mechanism 3 is used to improve the bending effect of the plate by cooperating with the pressure-maintaining bending mechanism.

[0073] Among them, the triggering mechanism 3 includes a bearing plate 301. The horizontal cross-sectional area of the bearing plate 301 is larger than the horizontal cross-sectional area of the movable bending plate 208. The bearing plate 301 is used to connect a plurality of linkage rods 302.

[0074] Preferably, the movable bending plate 208 is made of a magnetic conductive material, such as iron, and the bearing plate 301 is made of a magnetic material, such as a magnet block. When the movable bending plate 208 contacts the bearing plate 301, they will attract each other, which is used to extend the bending time of the plate by the movable bending plate 208 and avoid the springback phenomenon caused by the elastic deformation or stress release of the plate to ensure the bending effect of the plate.

[0075] In addition, a pair of linkage rods 302 are fixedly connected to the bearing plate 301. One end of the linkage rod 302 can be inserted into the clamping groove 2081. When the linkage rod 302 is inserted into the clamping groove 2081, the movable bending plate 208 can be fixed to ensure the pressure-maintaining effect of the movable bending plate 208 on the end of the plate.

[0076] Specifically, the other end of the linkage rod 302 is slidably connected to the bottom wall of the bending groove 101, so that the bearing plate 301 can move up and down in the bending groove 101. One end of the linkage rod 302 is arranged in the installation cavity 102 and connected with a trigger plate 303. The trigger plate 303 is used to contact the first pressure sensor 1021 or the second pressure sensor 1031, and is used to trigger the heating wire 4022 and the electric cylinder 403 respectively.

[0077] In addition, an elastic sleeve 304 is arranged outside the linkage rod 302. The elastic sleeve 304 is arranged between the bearing plate 301 and the bottom wall of the bending groove 101. When the bearing plate 301 moves downward, the elastic sleeve 304 is subjected to the extrusion force of the bearing plate 301. At the same time, the elastic sleeve 304 has a reverse acting force on the bearing plate 301, which is used to increase the downward movement resistance of the bearing plate 301 and make the bearing plate 301 tend to be stationary.

[0078] As Figures 1 to 10 shown, the guiding and bending assisting mechanism 4 is installed in the guiding cavity 104. The guiding and bending assisting mechanism 4 can be used to further improve the bending effect of the plate, avoid the springback of the plate, ensure the processing quality of the subsequent hard package shell of the square battery, and at the same time, the guiding and bending assisting mechanism 4 can also be used to extrude the plate to move a certain distance, which is convenient for the staff to take the plate.

[0079] Among them, the guiding and bending assisting mechanism 4 includes a U-shaped frame 401. The length of the U-shaped frame 401 is equal to the width of the guiding cavity 104. The U-shaped frame 401 is used to install the guiding wheel 402.

[0080] In addition, a guiding wheel 402 is rotatably connected to the U-shaped frame 401. The outer wall of the guiding wheel 402 is flush with the sealing cover plate 105 and is also flush with the side wall of the bending groove 101. The guiding wheel 402 can convert the static friction at the bending part of the plate into dynamic friction, which is not only convenient for bending the plate, but also can avoid damage to the bending part of the plate and ensure the bending effect of the plate.

[0081] Specifically, a cavity is arranged in the guiding wheel 402. A metal rod 4021 is fixedly connected in the cavity for fixing the heating wire 4022. The heating wire 4022 is wound around the metal rod 4021. The heating wire 4022 is electrically connected to the control board 103. When the second pressure sensor 1031 is squeezed by the trigger plate 303, the control board 103 converts the extrusion force received by the second pressure sensor 1031 into an electric signal and makes the heating wire 4022 operate. The heating wire 4022 generates heat during operation and transfers the heat to the bending part of the plate through the guiding wheel 402, which is used to further improve the bending effect of the plate and avoid the springback phenomenon of the plate when the external force is unloaded or released.

[0082] As Figures 1 to 10As shown, an electric cylinder 403 is installed in the guiding cavity 104. The output end of the electric cylinder 403 is connected to a linkage plate 404, and a plurality of reinforcing columns 405 are connected between the linkage plate 404 and the guiding wheel 402. When the first pressure sensor 1021 is squeezed by the trigger plate 303, the control board 103 converts the squeezing force received by the first pressure sensor 1021 into an electrical signal and makes the electric cylinder 403 operate. The electric cylinder 403 drives the U-shaped frame 401 and the guiding wheel 402 to move in the guiding cavity 104 through the linkage plate 404 and the reinforcing columns 405, so that the guiding wheel 402 protrudes from the side wall of the bending groove 101, and then the bent and formed plate can be extruded and moved along the table surface of the bending platform 1 for a certain distance, so that the staff can take the plate.

[0083] During specific use, when processing the square battery hard shell by the bending process, the flat plate to be bent is placed on the table surface of the bending groove 101, and the part of the plate to be bent is at the port of the bending groove 101.

[0084] Control the air cylinder 202 to extend. The air cylinder 202 drives the base 203, the lifting seat 205 and the movable bending plate 208 to move downward. When the base 203 contacts the plate, it can press the plate to avoid the problem of the plate warping during bending.

[0085] Control the motor 206 to operate. The motor 206 drives the screw to rotate, and the slider moves in the adjustment groove 204 under the action of the thread, and then can drive the lifting seat 205 and the movable bending plate 208 to move downward. Since the movable bending plate 208 is separated from the lifting seat 205 by a certain distance in the natural state, the movable bending plate 208 contacts the plate first. As the lifting seat 205 continues to move downward, the lifting seat 205 contacts the movable bending plate 208 and presses the plate through the movable bending plate 208. The plate is squeezed and bent under the action of the base 203, the lifting seat 205, the movable bending plate 208 and the guiding wheel 402, and the bent part of the plate will enter the bending groove 101 until the plate is squeezed into 90°, that is Figure 7 the state shown.

[0086] When the plate is bent into 90°, the bent part of the plate is parallel to the side wall of the movable bending plate 208. The movable bending plate 208 is not blocked by the plate and moves away from the lifting seat 205 under the action of gravity. The descending movable bending plate 208 will hit and attract the bearing plate 301. The bearing plate 301 drives the linkage rod 302 and the trigger plate 303 to move downward under the impact. The descending trigger plate 303 will generate a squeezing force on the second pressure sensor 1031. The control board 103 converts the squeezing force received by the second pressure sensor 1031 into an electrical signal and controls the heating wire 4022 to operate. The heating wire 4022 generates heat during operation, and the heat is transmitted to the bending part of the plate through the guiding wheel 402 to further improve the bending effect of the plate and avoid the springback phenomenon that occurs when the external force is unloaded or released.

[0087] When the slider moves to the bottom of the adjustment groove 204, the motor 206 runs in reverse, causing the screw to rotate in reverse, and then causing the lifting seat 205 to rise. When the lifting seat 205 rises in the bending groove 101, due to the attraction between the movable bending plate 208 and the bearing plate 301 and the self-gravity of the movable bending plate 208, the movable bending plate 208 does not immediately leave the bearing plate 301, but continues to be at the end of the plate bending part, that is Figure 7 the position shown, which is used to extend the plate bending time and avoid subsequent springback of the plate.

[0088] At the same time, due to the relative displacement between the lifting seat 205 and the movable bending plate 208, the tension spring 210 in the lifting cavity 2051 is pulled and elongated, and the tension spring 210 has an increasingly large pulling force on the anti-deviation rod 207 and the movable bending plate 208. When the pulling force is greater than the gravity of the movable bending plate 208, the bearing plate 301 and the linkage rod 302, the tension spring 210 will pull the movable bending plate 208, the bearing plate 301 and the linkage rod 302 to move up synchronously. At this time, the lifting seat 205 has moved to the outside of the bending groove 101.

[0089] When the trigger plate 303 moves up and contacts the first pressure sensor 1021, the bearing plate 301 and the linkage rod 302 are blocked and stop moving. The movable bending plate 208 will also separate from the bearing plate 301 under the pulling force. The movable bending plate 208 will quickly move towards the lifting seat 205 under the action of the tension spring 210 being pulled, until the lifting seat 205 and the movable bending plate 208 are in a relatively balanced state again.

[0090] When the trigger plate 303 contacts the first pressure sensor 1021, the control board 103 can convert the extrusion force received by the first pressure sensor 1021 into an electrical signal, and control the electric cylinder 403 to extend. The electric cylinder 403 drives the U-shaped frame 401 and the guide wheel 402 to move in the guide cavity 104 through the linkage plate 404 and the strengthening column 405, so that the guide wheel 402 protrudes from the side wall of the bending groove 101, and then the bent and formed plate can be extruded and moved along the table surface of the bending platform 1 for a certain distance. Then control the air cylinder 202 to contract, so that the base 203 is separated from the extrusion of the plate, and the staff can quickly take out the bent plate.

[0091] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0092] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sheet metal bending machine for sheet metal processing, characterized in that, Comprising: A bending platform, on the tabletop of which there is a bending groove; A bending component, installed on the bending platform and located above the bending groove. The bending component includes a mounting frame, on which a cylinder is installed. The free end of the cylinder is connected to a pressure-maintaining bending mechanism, and the pressure-maintaining bending mechanism is used to press and bend a plate; A triggering mechanism, installed in the bending groove. The triggering mechanism is used to improve the bending effect of the plate by cooperating with the pressure-maintaining bending mechanism.

2. The sheet metal bending machine for sheet metal processing according to claim 1, characterized in that, The pressure-maintaining bending mechanism includes a base, which is connected to the free end of the cylinder. A pair of adjustment grooves are provided on the side wall of the base. A screw rod and a guide rod are respectively arranged in the pair of adjustment grooves. The screw rod is rotatably connected in the adjustment groove, and the guide rod is fixedly connected in the adjustment groove.

3. The plate bending machine for plate processing according to claim 2, characterized in that, Sliders are arranged on both the screw rod and the guide rod. The slider is threadedly connected to the screw rod and slidably connected to the guide rod. A lifting seat is connected between the pair of sliders. The lifting seat is located on one side of the base and above the bending groove. A motor is installed on the base, and the output end of the motor is connected to the screw rod.

4. A sheet metal bending machine for sheet metal processing according to claim 3, wherein, A pair of anti-deviation rods are slidably connected in the lifting seat. An active bending plate is fixedly connected between the pair of anti-deviation rods. The active bending plate is located below the lifting seat. A pair of engaging grooves are provided on the bottom surface of the active bending plate. The surface of the lifting seat close to the base is flush with the surface of the active bending plate close to the base.

5. A sheet metal bending machine for sheet metal processing according to claim 4, characterized in that, One end of the anti-deviation rod located in the lifting seat is connected to a limiting plate. A lifting cavity matching the limiting plate is provided in the lifting seat. A tension spring is connected between the top wall of the lifting cavity and the limiting plate.

6. The sheet metal bending machine for sheet metal processing according to claim 4, wherein, The triggering mechanism includes a bearing plate, the horizontal cross-sectional area of which is larger than that of the active bending plate. A pair of linkage rods are fixedly connected to the bearing plate. One end of the linkage rod can be inserted into the engaging groove, and the other end of the linkage rod is slidably connected to the bottom wall of the bending groove.

7. A sheet metal bending machine for sheet metal processing according to claim 6, characterized in that, An installation cavity is provided in the bending platform, and the installation cavity is located below the bending groove. One end of the linkage rod is located in the installation cavity and is connected to a triggering plate. A control plate is installed in the installation cavity. A pair of second pressure sensors are installed on the top surface of the control plate, and the pair of second pressure sensors respectively correspond to the pair of triggering plates.

8. A sheet metal bending machine for sheet metal processing according to claim 7, characterized in that, An elastic sleeve is provided on the outer side of the linkage rod, and the elastic sleeve is located between the bearing plate and the bottom wall of the bending groove.

9. A sheet metal bending machine for sheet metal processing according to claim 8, characterized in that, A guiding cavity is provided on the side wall at the port of the bending groove. A guiding and bending assisting mechanism is installed in the guiding cavity. A sealing cover plate is installed at the upper opening of the guiding cavity, and the sealing cover plate is flush with the tabletop of the bending platform.

10. A sheet metal bending machine for sheet metal processing according to claim 9, characterized in that, The guiding and bending assisting mechanism includes a U-shaped frame, the length of which is equal to the width of the guiding cavity. A guiding wheel is rotatably connected to the U-shaped frame. The outer wall of the guiding wheel is flush with the sealing cover plate and the side wall of the bending groove. A cavity is provided in the guiding wheel, and a metal rod is fixedly connected in the cavity. An electric heating wire is wound around the metal rod, and the electric heating wire is electrically connected to the control plate.

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