Plate bending machine for plate processing

Abstract

The plate bending machine for plate processing comprises a workbench, vertical plates are symmetrically installed at the two ends in the width direction of the workbench, a top plate is installed at the tops of the two vertical plates, a first telescopic piece is installed at the top of the top plate, and the telescopic end of the first telescopic piece extends to the position below the top plate and is connected with a first installation plate; an upper protruding block is mounted at the bottom of the first mounting plate, upper bending assemblies are arranged on the two sides of the upper protruding block, the two upper bending assemblies are connected with the first mounting plate through auxiliary connecting assemblies, a mounting groove is formed in the workbench, a lower concave block is mounted in the mounting groove, and lower bending assemblies located in the mounting groove are arranged on the two sides of the lower concave block. A driving assembly is installed on the side wall of the workbench, a transmission connecting assembly is installed on the driving assembly, and a positioning assembly is installed on the side, located on the vertical plate, of the workbench. According to the plate bending device, a plate can be bent at different angles without replacing the template, the production and processing efficiency is greatly improved, and the bending position of the plate can be conveniently positioned.

Description

Technical Field

[0001] The invention relates to the technical field of bending machines, and in particular to a plate bending machine for plate processing. Background Art

[0002] Bending means that the plate first undergoes elastic deformation and then enters plastic deformation under the pressure of the upper or lower die of the bending machine. In the initial stage of plastic bending, the plate is free to bend. As the upper or lower die applies pressure to the plate, the plate and the inner surface of the V-groove of the lower die gradually come close to each other. At the same time, the radius of curvature and the bending force arm also gradually decrease. Continue to apply pressure until the stroke ends, so that the upper and lower dies are in full contact with the plate at three points. At this time, a V-shaped bend is completed, which is commonly known as bending.

[0003] However, when a traditional bending machine bends a plate, the bending parts can only bend the plate into a fixed angle, and the staff can only complete the bending at different angles by replacing different fixed molds, but the current bending machine is very troublesome when replacing the fixed mold, which greatly reduces the production and processing efficiency; and the traditional bending machine is not convenient to locate the bending position of the plate when bending the plate. Therefore, when performing batch bending processing, the staff needs to repeatedly measure and mark the bending position of the plate each time, which is cumbersome and reduces the work efficiency of the bending process.

[0004] Therefore, the applicant proposes a plate bending machine for plate processing to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a plate bending machine for plate processing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The folding plate has two ends, the first end is provided with a toothed plate, and the second end is provided with a toothed plate, and the toothed plate has a toothed plate, and the toothed plate has a toothed plate, and the toothed plate has a toothed plate, and the toothed plate has a toothed plate, and the toothed plate has a toothed plate, and the toothed plate has a toothed plate, and the toothed plate has a toothed plate, and the toothed plate

[0008] Furthermore, the upper bending assembly includes an upper bending template, and a first connecting shaft is installed at one end of the upper bending template close to the upper protrusion, both ends of the first connecting shaft extend to the outside of the vertical plate, and first gears are installed on both ends of the first connecting shaft.

[0009] Furthermore, the auxiliary connecting component includes a first slide groove opened in the first mounting plate, a first slider is slidably fitted in the first slide groove, both sides of the first slide groove are connected with first guide grooves that penetrate the two side walls of the first mounting plate, both sides of the first slider are equipped with first connecting seats that slidably fit with the first guide grooves, the first connecting seat extends out of the first guide groove, a second connecting seat is installed on the top of the upper bending template, and a connecting rod is rotatably connected between the first connecting seat and the second connecting seat.

[0010] Furthermore, the lower bending assembly includes a lower bending template arranged in the mounting groove, a second connecting shaft is installed at one end of the lower bending template close to the lower recessed block, both ends of the second connecting shaft extend to the outside of the workbench, and second gears are installed on both ends of the second connecting shaft.

[0011] Furthermore, the driving assembly includes a second telescopic member installed on the side wall of the workbench, and a second mounting plate is connected to the telescopic end of the second telescopic member. A through groove penetrating the two side walls of the second mounting plate is formed on the second mounting plate, and racks are slidably provided at both ends of the through groove, and the racks can engage with the first gear and the second gear.

[0012] Furthermore, the transmission connection assembly includes a micro cylinder installed on the top of the second mounting plate, the telescopic end of the micro cylinder extends into the through groove and is connected to the trapezoidal block, a number of springs are connected between the two racks, the top and bottom of the through groove are connected to the second slide groove, and the top and bottom of the rack are both installed with a second slider that slides in cooperation with the second slide groove.

[0013] Furthermore, the positioning assembly includes a third telescopic member installed on the workbench on one side of the vertical plate, a positioning plate is installed on the telescopic end of the third telescopic member, an infrared transmitter is installed on the positioning plate, and an infrared receiver is installed on the vertical plate just above the lower recessed block.

[0014] Furthermore, both ends of the vertical plate are provided with slots for the first connecting shaft to pass through.

[0015] Furthermore, support legs are installed at both ends of the bottom of the workbench.

[0016] Compared with the prior art, the present invention provides a plate bending machine for plate processing, which has the following beneficial effects:

[0017] 1. The present invention places the plate on a workbench, the bottoms of both sides of the plate at the bending part are in contact with the lower bending assembly, the upper bending assembly is driven up and down by the first telescopic member, so that the upper bending assembly is in contact with the top surfaces of both sides of the plate at the bending part, the driving assembly is connected with the upper bending assembly and the lower bending assembly through the transmission connection assembly, and then the upper bending assembly and the lower bending assembly are driven to rotate by the driving assembly to achieve the bending effect, thereby achieving bending of the plate at different angles without changing the template, greatly improving the production and processing efficiency, and the upper convex block and the lower concave block cooperate with each other to make the plate bend smoothly, avoiding scratches on the plate bend during the bending process, which affects the quality of the plate after bending;

[0018] 2. The present invention can conveniently locate the bending position of the plate by setting a positioning component, so that the staff does not need to repeatedly measure and mark the position of the bending position of the plate when performing batch plate bending processing, which effectively improves the processing efficiency of plate bending;

[0019] 3. The bending angle of the plate of the present invention can be 60°-180°, which can be applied to the bending angles of most plates, thus improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0021] Figure 2 It is a front view structural schematic diagram of the present invention;

[0022] Figure 3 It is a right view structural schematic diagram of the present invention;

[0023] Figure 4 It is a front cross-sectional structural schematic diagram of the drive assembly and the transmission connection assembly of the present invention;

[0024] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 6 yes Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 7 yes Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0027] Figure 8 yes Figure 4 Schematic diagram of the enlarged structure at D in the middle.

[0028] Markings in the figure: 1, workbench; 2, vertical plate; 3, top plate; 4, first telescopic member; 5, first mounting plate; 6, upper protrusion; 7, upper bending assembly; 71, upper bending template; 72, first connecting shaft; 73, first gear; 8, auxiliary connecting assembly; 81, first slide groove; 82, first slider; 83, first guide groove; 84, first connecting seat; 85, second connecting seat; 86, connecting rod; 9, mounting groove; 10, lower concave block; 11, lower bending assembly; 111, lower bending template; 112, second connecting shaft; 113. second gear; 12. driving assembly; 121. second telescopic member; 122. second mounting plate; 123. through slot; 124. rack; 13. transmission connection assembly; 131. micro cylinder; 132. trapezoidal block; 133. spring; 134. second slide slot; 135. second slider; 14. positioning assembly; 141. third telescopic member; 142. positioning plate; 143. infrared transmitter; 144. infrared receiver; 15. slot; 16. supporting leg; 17. controller; 18. rubber pad. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0030] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0031] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0034] The embodiment of the present invention provides a plate bending machine for plate processing, referring to Figures 1 to 8 , comprising a workbench 1, with vertical plates 2 symmetrically installed at both ends along the width direction of the workbench 1, a top plate 3 installed on the top of the two vertical plates 2, a first telescopic member 4 installed on the top of the top plate 3, the telescopic end of the first telescopic member 4 extends to the bottom of the top plate 3 and is connected to the first mounting plate 5, an upper protrusion 6 is installed at the bottom of the first mounting plate 5, upper bending components 7 are arranged on both sides of the upper protrusion 6, two groups of the upper bending components 7 are connected to the first mounting plate 5 through an auxiliary connecting component 8, the workbench 1 An installation groove 9 is provided, in which a lower concave block 10 located directly below the upper protrusion 6 is installed, and lower bending components 11 located in the installation groove 9 are provided on both sides of the lower concave block 10. A driving component 12 for driving the upper bending component 7 and the lower bending component 11 to rotate is installed on the side wall of the workbench 1, and a transmission connection component 13 for transmission connection with the upper bending component 7 and the lower bending component 11 is installed on the driving component 12. A positioning component 14 is installed on one side of the vertical plate 2 on the workbench 1.

[0035] Specifically, the same top plate 3 is installed on the top of the two vertical plates 2; in the present embodiment, two first telescopic members 4 are provided, and the telescopic end of the first telescopic member 4 is slidably connected to the top plate 3; the first mounting plate 5 is vertically arranged, and the length of the first mounting plate 5 along the width direction of the workbench 1 is the same as the width of the mounting groove 9; the lower part of the upper protrusion 6 is arranged in an arc shape; the upper part of the lower recessed block 10 is arranged in an inwardly concave arc shape, which can cooperate with the upper protrusion 6; the auxiliary connection assembly 8 can be provided with multiple groups to provide better connection reliability; the lower bending assembly 11 is provided with 2 groups; through the mutual cooperation of the upper protrusion 6 and the lower recessed block 10, the bending part of the plate can have a smooth transition to avoid the plate from being damaged during the bending process Scratches are caused at the bending part, affecting the quality of the plate after bending; two groups of drive components 12 can be set, which are respectively installed on the two side walls of the workbench 1 along its width direction; by setting the positioning component 14, the bending position of the plate can be conveniently positioned, so that the staff does not need to repeatedly measure and mark the position of the bending part of the plate when performing batch plate bending processing, which effectively improves the processing efficiency of plate bending; the upper bending component 7 and the lower bending component 11 are rotated synchronously to achieve the effect of plate bending, so as to achieve bending of different angles of the plate without changing the template, which greatly improves the production and processing efficiency. In this embodiment, the bending angle of the plate can be 60°-180°.

[0036] Among them, refer to Figures 1 to 3In this embodiment, support legs 16 are installed at both ends of the bottom of the workbench 1 to support the workbench 1.

[0037] Preferably, the number of the supporting legs 16 is four, which are distributed at the four corners of the bottom of the workbench 1 in a rectangular array.

[0038] Reference Figure 1 , Figure 3 and Figure 5 In this embodiment, the upper bending assembly 7 includes an upper bending template 71, and a first connecting shaft 72 is installed at one end of the upper bending template 71 close to the upper protrusion 6, both ends of the first connecting shaft 72 extend to the outside of the vertical plate 2, and first gears 73 are installed on both ends of the first connecting shaft 72.

[0039] Specifically, the first connecting shaft 72 is arranged horizontally; the first gear 73 is installed on the two ends of the first connecting shaft 72 extending to the outside of the vertical plate 2; the top surface of the upper protrusion 6 is at the same horizontal height as the axis of the first connecting shaft 72, and the lowest point of the upper protrusion 6 is at the same horizontal height as the bottom of the upper bending template 71; the upper bending assembly 7 has 2 groups, that is, there are 2 upper bending templates 71, 2 first connecting shafts 72, and 4 first gears 73.

[0040] Among them, refer to Figure 1 and Figure 2 In this embodiment, slots 15 are formed at both ends of the vertical plate 2 for the first connecting shaft 72 to pass through.

[0041] Specifically, the slot 15 is vertically arranged, and the first connecting shaft 72 can move up and down in the slot 15 , and can also rotate in the slot 15 .

[0042] Reference Figure 1 , Figure 5 and Figure 7 In this embodiment, the auxiliary connecting component 8 includes a first slide groove 81 opened in the first mounting plate 5, and a first slider 82 is slidably matched in the first slide groove 81. The two sides of the first slide groove 81 are connected with first guide grooves 83 that penetrate the two side walls of the first mounting plate 5. The two sides of the first slider 82 are equipped with first connecting seats 84 that slide with the first guide grooves 83. The first connecting seat 84 extends out of the first guide groove 83. A second connecting seat 85 is installed on the top of the upper bending template 71, and a connecting rod 86 is rotatably connected between the first connecting seat 84 and the second connecting seat 85.

[0043] Specifically, the first slide groove 81 and the first guide groove 83 are both vertically arranged, and the width of the first slide groove 81 is greater than that of the first guide groove 83; the sliding cooperation between the first connecting seat 84 and the first guide groove 83 improves the stability of the first slider 82 moving in the first slide groove 81; the first connecting seat 84 is hinged to one end of the connecting rod 86, and the other end of the connecting rod 86 is hinged to the second connecting seat 85; when the first slider 82 is located at the bottom of the first slide groove 81, the two upper bending templates 71 are just in a horizontal state; in this embodiment, the auxiliary connecting assembly 8 is provided with 3 groups; rubber pads 18 are installed at the bottom of the first slide groove 81 and the first guide groove 83. When the two upper bending templates 71 are tilted, the transmission connection assembly 13 disconnects the transmission connection between the driving assembly 12 and the first gear 73, and the two upper bending templates 71 return to a horizontal state and are buffered by the rubber pads 18, so as to protect the first connecting seat 84 and the first slider 82, thereby protecting the connecting rod 86 and the second connecting seat 85, thereby improving the service life of the equipment components.

[0044] The first slider 82 moves up and down in the first slide groove 81, thereby driving the first connecting seat 84 to move up and down in the first guide groove 83, thereby driving the connecting rod 86 to rotate, and then driving the upper bending template 71 to rotate around the first connecting axis 72 through the second connecting seat 85, thereby changing the angle between the two upper bending templates 71.

[0045] Reference Figure 1 In this embodiment, the lower bending assembly 11 includes a lower bending template 111 arranged in the mounting groove 9, and a second connecting shaft 112 is installed at one end of the lower bending template 111 close to the lower recessed block 10, and both ends of the second connecting shaft 112 extend to the outside of the workbench 1, and second gears 113 are installed on both ends of the second connecting shaft 112.

[0046] Specifically, the second connecting shaft 112 is arranged horizontally, and the two ends of the second connecting shaft 112 are rotatably connected to the workbench 1; the second gear 113 is installed on the two ends of the second connecting shaft 112 extending to the outside of the workbench 1; the highest point of the lower recessed block 10 is at the same horizontal height as the axis of the second connecting shaft 112; the top surface of the lower bending template 111 is at the same horizontal height as the top surface of the workbench 1; the lower bending template 111 is in a horizontal state in the mounting groove 9; a rubber pad 18 is also installed in the mounting groove 9 below the lower bending template 111, and when the lower bending template 111 is horizontal, its bottom surface is in contact with the top surface of the rubber pad 18; the lower bending assembly 11 has 2 groups, that is, there are 2 lower bending templates 111, 2 second connecting shafts 112, and 4 second gears 113.

[0047] When the two lower bending templates 111 are tilted, the transmission connection assembly 13 disconnects the transmission connection between the driving assembly 12 and the second gear 113, and the two lower bending templates 111 return to a horizontal state. The rubber pads 18 are used for buffering and protection of the lower bending templates 111. This design is to facilitate the staff to take out the bent plates.

[0048] Reference Figure 2 , Figure 4 , Figure 6 and Figure 8 In this embodiment, the driving assembly 12 includes a second telescopic member 121 installed on the side wall of the workbench 1, and a second mounting plate 122 is connected to the telescopic end of the second telescopic member 121. The second mounting plate 122 is provided with a through groove 123 that passes through the two side walls of the second mounting plate 122. Racks 124 are slidably provided at both ends of the through groove 123, and the rack 124 can engage with the first gear 73 and the second gear 113.

[0049] when the rack 124 is extended, the teeth on the rack 124 can mesh with the first gear 73 and the second gear 113, and when the rack 124 is retracted, the teeth on the rack 124 do not mesh with the first gear 73 and the second gear 113.

[0050] The first gear 73 and the second gear 113 are the same gears. The angle between the two upper bending templates 71 and the angle between the two lower bending templates 111 can be controlled by the rack 124 driving the rotation angle of the first gear 73 and the second gear 113 .

[0051] Reference Figure 6 and Figure 8 In this embodiment, the transmission connection assembly 13 includes a micro cylinder 131 installed on the top of the second mounting plate 122, the telescopic end of the micro cylinder 131 extends into the through groove 123 and is connected to the trapezoidal block 132, a plurality of springs 133 are connected between the two racks 124, the top and bottom of the through groove 123 are connected to the second slide groove 134, and the top and bottom of the rack 124 are both installed with a second slider 135 that slides with the second slide groove 134.

[0052] Specifically, the telescopic end of the micro cylinder 131 is slidably connected to the top of the second mounting plate 122; an inclined portion matching the hypotenuse of the trapezoidal block 132 is provided between the tops of the two racks 124, and under the elastic action of the spring 133, the extension and retraction of the rack 124 are conveniently achieved; through the sliding cooperation between the second slider 135 and the second slide groove 134, the stability of the rack 124 moving in the through groove 123 is improved.

[0053] Reference Figure 1 and Figure 2 In this embodiment, the positioning assembly 14 includes a third telescopic member 141 installed on the workbench 1 on one side of the vertical plate 2, a positioning plate 142 is installed on the telescopic end of the third telescopic member 141, an infrared transmitter 143 is installed on the positioning plate 142, and an infrared receiver 144 is installed on the vertical plate 2 just above the lower recessed block 10.

[0054] Specifically, two third telescopic members 141 are provided, which are located on the same side of the two vertical plates 2 and are symmetrically arranged (not shown in the figure); the third telescopic member 141 is arranged horizontally; the bottom surface of the positioning plate 142 is in contact with the top surface of the workbench 1; the infrared receiver 144 is located on the vertical plane of the midline of the lower recessed block 10; the infrared transmitter 143 and the infrared receiver 144 are located at the same horizontal height; the infrared transmitter 143 and the infrared receiver 144 can be existing ranging sensors, and their specific principles are not summarized here.

[0055] The first telescopic member 4, the second telescopic member 121 and the third telescopic member 141 can be a cylinder, an electric cylinder or a hydraulic cylinder. Preferably, the first telescopic member 4, the second telescopic member 121 and the third telescopic member 141 are hydraulic cylinders, which are existing equipment and will not be described in detail here.

[0056] Reference Figure 2 In this embodiment, a controller 17 is also installed on the workbench 1, and the first telescopic member 4, the second telescopic member 121, the third telescopic member 141, the micro cylinder 131, the infrared transmitter 143 and the infrared receiver 144 can all be electrically connected to the controller 17 to facilitate the operation and observation of the staff.

[0057] Working principle: When in use, firstly, the third telescopic member 141 is used to drive the positioning plate 142 to move, and the distance between the bending part of the plate and the end face of the plate is measured by the infrared transmitter 143 and the infrared receiver 144 to complete the positioning of the bending position of the plate, and then the plate is placed on the workbench 1, and its end is in conflict with the positioning plate 142, and the bottoms of both sides of the bending part of the plate are in contact with the top surface of the lower bending template 111, and the first mounting plate 5 is driven down by the first telescopic member 4, thereby driving the upper bending template 71 to descend, so that the bottom surface of the upper bending template 71 is in contact with the top surfaces of both sides of the bending part of the plate, and then the trapezoidal block 1 is driven by the micro cylinder 131 The first gear 73 and the second gear 113 are meshed with each other. At this time, the spring 133 is in a stretched state, and the second mounting plate 122 is driven to descend through the second telescopic member 121, so that the first gear 73 and the second gear 113 rotate counterclockwise, so that the first connecting shaft 72 and the second connecting shaft 112 rotate, so that the two upper bending templates 71 and the two lower bending templates 111 rotate synchronously, and the two sides of the bending part of the plate are bent to achieve the bending effect, so as to achieve bending of different angles for the plate without changing the template, thereby greatly improving the production and processing efficiency;

[0058] When the sheet is bent, the micro cylinder 131 drives the trapezoidal block 132 to move, and the rack 124 retracts under the elastic force of the spring 133. The teeth on the rack 124 do not mesh with the first gear 73 and the second gear 113. At this time, the second telescopic member 121 drives the second mounting plate 122 back to the initial position, and the lower bending template 111 returns to a horizontal state under the action of gravity. The upper bending template 71 remains unchanged, and the first mounting plate 5 is driven to rise and return to the initial position through the first telescopic member 4, so that the staff can take out the bent sheet conveniently. After the sheet is taken out, the upper bending template 71 returns to a horizontal state under the action of gravity, and then repeats the above steps to achieve batch bending of the sheets.

[0059] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A sheet bending machine for sheet processing, comprising a workbench (1), characterized in that: Vertical plates (2) are symmetrically installed at both ends along the width direction of the workbench (1), and top plates (3) are installed on the tops of the two vertical plates (2). A first telescopic member (4) is installed on the top of the top plate (3). The telescopic end of the first telescopic member (4) extends to the bottom of the top plate (3) and is connected to the first mounting plate (5). An upper protrusion (6) is installed at the bottom of the first mounting plate (5). Upper bending components (7) are provided on both sides of the upper protrusion (6). The two groups of upper bending components (7) are connected to the first mounting plate (5) through auxiliary connecting components (8). The workbench (1) is provided with a mounting A groove (9) is provided in the installation groove (9) with a lower concave block (10) located directly below the upper protrusion (6), and lower bending components (11) located in the installation groove (9) are provided on both sides of the lower concave block (10). A driving component (12) for driving the upper bending component (7) and the lower bending component (11) to rotate is installed on the side wall of the workbench (1), and a transmission connection component (13) for transmission connection with the upper bending component (7) and the lower bending component (11) is installed on the driving component (12). A positioning component (14) is installed on one side of the vertical plate (2) on the workbench (1).

2. The sheet metal bending machine for sheet metal processing according to claim 1, characterized in that: The upper bending assembly (7) comprises an upper bending template (71), a first connecting shaft (72) being installed at one end of the upper bending template (71) close to the upper protrusion (6), both ends of the first connecting shaft (72) extending to the outside of the vertical plate (2), and first gears (73) being installed on both ends of the first connecting shaft (72).

3. The sheet metal bending machine for sheet metal processing according to claim 2, characterized in that: The auxiliary connection component (8) includes a first slide groove (81) provided in the first mounting plate (5), a first slider (82) slidably fitted in the first slide groove (81), both sides of the first slide groove (81) are connected with first guide grooves (83) penetrating the two side walls of the first mounting plate (5), both sides of the first slider (82) are provided with first connection seats (84) slidably fitted with the first guide grooves (83), the first connection seats (84) extend out of the first guide grooves (83), a second connection seat (85) is provided on the top of the upper bending template (71), and a connecting rod (86) is rotatably connected between the first connection seat (84) and the second connection seat (85).

4. The sheet metal bending machine for sheet metal processing according to claim 2, characterized in that: The lower bending assembly (11) comprises a lower bending template (111) arranged in the installation groove (9), and a second connecting shaft (112) is installed at one end of the lower bending template (111) close to the lower recessed block (10), and both ends of the second connecting shaft (112) extend to the outside of the workbench (1), and second gears (113) are installed on both ends of the second connecting shaft (112).

5. The sheet metal bending machine for sheet metal processing according to claim 4, characterized in that: The driving assembly (12) comprises a second telescopic member (121) mounted on a side wall of the workbench (1); a second mounting plate (122) is connected to a telescopic end of the second telescopic member (121); a through slot (123) penetrating through two side walls of the second mounting plate (122) is provided on the second mounting plate (122); racks (124) are slidably provided at both ends of the through slot (123); and the racks (124) are capable of meshing with the first gear (73) and the second gear (113).

6. The plate bending machine for plate processing according to claim 5, characterized in that: The transmission connection assembly (13) comprises a micro cylinder (131) mounted on the top of the second mounting plate (122); the telescopic end of the micro cylinder (131) extends into the through slot (123) and is connected to the trapezoidal block (132); a plurality of springs (133) are connected between the two racks (124); the top and bottom of the through slot (123) are connected to a second slide slot (134); the top and bottom of the rack (124) are both mounted with a second slider (135) that slidably cooperates with the second slide slot (134).

7. The plate bending machine for plate processing according to claim 1, characterized in that: The positioning assembly (14) comprises a third telescopic member (141) mounted on the workbench (1) and located on one side of the vertical plate (2); a positioning plate (142) is mounted on the telescopic end of the third telescopic member (141); an infrared transmitter (143) is mounted on the positioning plate (142); and an infrared receiver (144) is mounted on the vertical plate (2) directly above the lower concave block (10).

8. The plate bending machine for plate processing according to claim 2, characterized in that: The two ends of the vertical plate (2) are provided with slots (15) for the first connecting shaft (72) to pass through.

9. The sheet metal bending machine for sheet metal processing according to claim 1, characterized in that: Support legs (16) are installed at both ends of the bottom of the workbench (1).

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