Bending machine with high stability

Abstract

The utility model discloses a bending machine with high stability. The bending machine comprises a rack, an upper workbench, a lower workbench, a hydraulic system, an oil cylinder, a rear positioning assembly and a control system. Oil cylinders are installed on the two sides of the upper portion of the rack, piston rods are arranged at the bottoms of the oil cylinders, and the piston rods are connected with the upper workbench through wedge blocks; the hydraulic system is arranged on the upper portion of the machine frame and connected with the oil cylinder through an oil pipe. The lower workbench is fixed on the workbench surface of the rack; the rear positioning assembly is installed on the inner side of the lower portion of the rack. The control system is used for setting machining parameters; the rear positioning assembly moves to a designated position according to parameters set by the control system, the hydraulic system is started to force the piston rod to drive the upper workbench to pressurize towards the lower workbench, and therefore the bending function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machine equipment, and particularly relates to a bending machine with high stability. Background Art

[0002] A bending machine is a machine that can bend thin plates. It moves to a specified position according to the parameters set by the system, and then uses a hydraulic system to supply oil to the inner cavity of the oil cylinder, forcing the piston rod to drive the upper workbench to press downward toward the lower workbench, thereby realizing the bending function. In the existing bending machines, due to unreasonable structural design, they are inconvenient to operate, and it will cause the rear positioning mechanism to have low stability and low transmission efficiency during the horizontal movement. Content of the Utility Model

[0003] The utility model aims to overcome at least one defect of the above-mentioned prior art, and provides a bending machine with high stability to achieve the purpose of high bending efficiency and high stability.

[0004] The utility model provides a bending machine with high stability, which includes a frame, an upper workbench, a lower workbench, a hydraulic system, an oil cylinder, a rear positioning assembly and a control system; oil cylinders are installed on both sides of the upper part of the frame, a piston rod is arranged at the bottom of the oil cylinder, and the piston rod is connected with the upper workbench by a wedge block; the hydraulic system is arranged on the upper part of the frame, and the hydraulic system is connected with the oil cylinder through an oil pipe; the lower workbench is fixed on the workbench surface of the frame; the rear positioning assembly is installed inside the lower part of the frame; the control system is used to set processing parameters; the rear positioning assembly moves to a specified position according to the parameters set by the control system, and by starting the hydraulic system, the piston rod is forced to drive the upper workbench to press downward toward the lower workbench, thereby realizing the bending function.

[0005] Oil cylinders are installed on both sides of the upper part of the frame, the hydraulic system is also connected with the top of the oil cylinder by an oil pipe, the piston rod at the bottom of the oil cylinder is connected with the upper workbench by a wedge block, the lower workbench is fixed on the workbench surface of the frame, and the rear positioning assembly is installed inside the frame to locate the processing range of the product. When processing a product, an operator sets the parameters of the control system, the rear positioning will move to a specified position according to the parameters set by the system, and then step on the foot switch, the hydraulic system will supply oil to the inner cavity of the oil cylinder, forcing the piston rod to drive the upper workbench to press downward toward the lower workbench, thereby realizing the bending function.

[0006] The difference of the utility model lies in that through reasonable layout, the stability of the overall work is higher. The control system can realize the debugging, parameter design, start and stop, etc. of the whole machine. The hydraulic system and the oil cylinder cooperate as the power module for the downward pressure of the upper workbench.

[0007] Further, the bending machine of the present utility model includes a foot switch, which is electrically connected to the control system. By stepping on the foot switch, the hydraulic system supplies oil to the inner cavity of the oil cylinder, forcing the piston rod to drive the upper workbench to press downward toward the lower workbench, thereby realizing the bending function.

[0008] Further, the rear positioning assembly sequentially includes a sliding table module, a lifting module, and a horizontal translation module from bottom to top; the sliding table module is installed at the lower part of the frame and is used to realize the forward and backward movement of the product; a set of lifting modules is installed on the side of each sliding table component and is used to move the product up and down to a specified position; both ends of the horizontal translation module are respectively fixed on a set of lifting modules and are used to realize the horizontal movement of the product.

[0009] Another design point of the present utility model lies in the design of the rear positioning assembly. Different from the design of a single sliding table module in the prior art, the present utility model designs a double sliding table module, which can independently control the operation, has higher stability, and improves the operation efficiency.

[0010] Further, the sliding table module includes a sliding table support, a first screw rod assembly, a first linear module, a first driving component, and a first sliding plate; the sliding table support is fixed on the side wall of the frame; one end of the first screw rod assembly is fixed on the side wall of the sliding table support, and the other end is connected to the first driving component; there are two sets of the first linear modules, which are respectively arranged on both sides of the first screw rod assembly and are parallel to both sides of the first screw rod assembly; one side of the first sliding plate is connected to the lifting module, and the middle part of the other side is connected to the first screw rod assembly. The upper and lower ends of the first sliding plate are connected to the first linear module. By driving the first screw rod assembly to move through the first driving component, the first sliding plate moves back and forth along the first linear module.

[0011] Further, the first screw rod assembly includes a first screw rod, a screw nut, and a nut sleeve; the first driving component includes a first motor, a first mounting seat, and a sliding table bearing seat that are sequentially fixed; one end of the first screw rod passes through the sliding table bearing seat and the first mounting seat and is connected to the first motor; the side of the sliding table bearing seat is fixed to the sliding table support; the first screw rod movably penetrates through the screw nut, and a nut sleeve is sleeved outside the screw nut; a front bearing seat is further provided at the other end of the first screw rod, and the first screw rod is fixed to the inner wall of the sliding table support through the front bearing seat; the first sliding plate is fixed to the side of the nut sleeve; the first linear module includes a first linear slide rail, and a plurality of first linear sliders are provided on the first linear slide rail; the first sliding plate is fixed to the first linear slider; a plurality of cylindrical anti-collision pads are provided on the inner side of the sliding table bearing seat and / or the front bearing seat.

[0012] Further, the lifting module includes a fixed bracket, a second driving component, a second lead screw component, a second linear module, and a top plate; the bottom of the second lead screw component is suspended, the top is fixed to the top plate, and the side is connected to the second linear module; the second linear module is installed on the inner walls of both sides of the fixed bracket; the second driving component drives the second lead screw component to rotate, so that the second lead screw component drives the top plate to move up and down along the direction of the second linear module.

[0013] Further, the second driving component includes a second motor, a main synchronous pulley, a belt, and a slave synchronous pulley; the main synchronous pulley is fixed to the second motor; the second lead screw component includes a second lead screw, a lifting lead screw locking block, a lifting bearing support seat, a lifting lead screw fixing piece, a lifting lead screw lower buffer pad, and a lifting lead screw lower buffer stop; one end of the second lead screw is fixed to the top plate through the lifting lead screw locking block and the lifting bearing support seat, and the other end passes through the slave synchronous pulley and is connected to the lifting lead screw lower buffer pad and the lifting lead screw lower buffer stop; the main synchronous pulley and the slave synchronous pulley are connected by a belt; the lifting lead screw fixing piece is sleeved outside the slave synchronous pulley and is fixed to the second linear module on both sides; the diameter of the slave synchronous pulley is D, and the diameter of the slave synchronous pulley is d; where D≥2d.

[0014] Further, the second linear module includes a second linear slide rail, a plurality of second linear sliders, and a slider guide fixing seat; the second linear slide rail is fixed on the inner side surfaces of both sides of the fixed bracket, the second linear sliders are arranged on the second linear slide rail and can move up and down relative to the second linear slide rail; one side of the slider guide fixing seat is fixed to the second linear slider, and the other side is connected to the lifting lead screw fixing piece.

[0015] Further, the horizontal translation module includes a cross beam seat, a rack, a third linear slide rail, a third driving component, a rear positioning block seat component, and a fixed handle; the cross beam seat is fixed on the frame; the rack and the third linear slide rail are respectively arranged on both sides of the cross beam seat and are parallel, and the teeth of the rack face downwards; the third driving component includes a third motor, a reducer, and a rear positioning motor fixing seat connected in sequence, and the rotating shaft of the reducer passes through the rear positioning motor fixing seat and is connected with a cylindrical helical gear; the cylindrical helical gear is arranged below the rack and meshes with the rack; the other side of the rear positioning motor fixing seat is connected to the rear positioning block seat component; a third linear slider is arranged on the side of the rear positioning block seat component; the third linear slider is movably installed on the third linear slide rail.

[0016] Further, oil cylinder mounting positions are provided on both sides of the upper part of the frame, and a hydraulic station mounting position is provided in the middle of the upper part of the frame; there are two sets of slide table modules, and the hydraulic systems and oil cylinders are respectively two sets. Each set of hydraulic system and oil cylinder cooperate with one set of the slide table modules for operation.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The bending machine of the present utility model has a compact structure, and by designing two sets of drive systems, it can independently control the operation of two sets of slide table modules, with higher operation efficiency and higher overall stability. Description of the Drawings

[0019] Figure 1 It is a rear three-dimensional structural schematic diagram of the bending machine of the present utility model after removing part of the outer shell.

[0020] Figure 2 It is a front three-dimensional structural schematic diagram of the bending machine of the present utility model after removing part of the outer shell.

[0021] Figure 3 It is a partial structural schematic diagram of the bending machine of the present utility model showing the slide table module.

[0022] Figure 4 It is an internal assembly structural schematic diagram of the bending machine of the present utility model showing the slide table module.

[0023] Figure 5 It is a structural schematic diagram of the bending machine of the present utility model showing the lifting module.

[0024] Figure 6 It is a partial exploded structural schematic diagram of the bending machine of the present utility model showing the lifting module.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the bending machine of the present utility model showing the horizontal translation module.

[0026] Figure 8 It is a partial exploded structural schematic diagram of the bending machine of the present utility model showing the horizontal translation module.

[0027] Figure 9 It is a partial enlarged structural schematic diagram of the horizontal translation module of the bending machine of the present utility model. Detailed Embodiments

[0028] The accompanying drawings in the embodiments are used to describe the technical solutions in the embodiments of the present utility model in more detail. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of this application, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of this application, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by this application.

[0031] Embodiment

[0032] This embodiment provides a bending machine with high stability, as Figures 1 - 2As shown in the figure, it includes a frame 1, an upper workbench 2, a lower workbench 3, two sets of hydraulic systems 4, two sets of oil cylinders 5, a rear positioning component 6, a control system 7, and a foot switch 8; on both sides of the upper part of the frame 1, there are oil cylinder installation positions 11, and one set of oil cylinders 5 is installed respectively; in the middle of the upper part of the frame 1, there is a hydraulic station installation position 12; two sets of hydraulic systems 4 are fixed at the hydraulic station installation position 12. The bottom of the oil cylinder 5 is provided with a piston rod, and the piston rod is connected to the upper workbench 2 with a wedge block; the hydraulic system 4 is arranged on the upper part of the frame 1, and the hydraulic system 4 is connected to the oil cylinder 5 through an oil pipe 9; the lower workbench 3 is fixed on the workbench surface of the frame 1; the rear positioning component 6 is installed on the inner side of the lower part of the frame 1; in this embodiment, the control system 7 is used to set processing parameters; oil cylinders 5 are installed on both sides of the upper part of the frame 1, the hydraulic system 4 is connected to the top of the oil cylinder 5 with an oil pipe 9, the piston rod at the bottom of the oil cylinder 5 is connected to the upper workbench 2 with a wedge block, the lower workbench 3 is fixed on the workbench surface of the frame 1, and the rear positioning component 6 is installed on the inner side of the frame 1 to position the processing range of the product. When processing a product, the operator sets the parameters of the control system 7, the rear positioning will move to the specified position according to the parameters set by the system, then step on the foot switch 8, the hydraulic system 4 will supply oil to the inner cavity of the oil cylinder 5, forcing the piston rod to drive the upper workbench 2 to press downward towards the lower workbench 3, so as to realize the bending function.

[0033] Further, the rear positioning component 6 sequentially includes a sliding table module 61, a lifting module 62, and a horizontal translation module 63 from bottom to top; the sliding table module 61 is installed at the lower part of the frame 1 and is used to realize the front and back movement of the product; on the side of each sliding table component, a set of lifting modules 62 is installed to realize the up and down movement of the product to the specified position; both ends of the horizontal translation module 63 are respectively fixed on a set of lifting modules 62 to realize the horizontal movement of the product. As shown in Figures 3 - 4 the figure, the sliding table module 61 includes a sliding table support 611, a first lead screw assembly 612, a first linear module 613, a first drive assembly 614, and a first sliding plate 615; the sliding table support 611 is fixed on the side wall of the frame 1; one end of the first lead screw assembly 612 is fixed on the side wall of the sliding table support 611, and the other end is connected to the first drive assembly 614; there are two sets of the first linear modules 613, which are respectively arranged on both sides of the first lead screw assembly 612 and are parallel to both sides of the first lead screw assembly 612; one side of the first sliding plate 615 is connected to the lifting module 62, and the middle of the other side is connected to the first lead screw assembly 612. The upper and lower ends of the first sliding plate 615 are connected to the first linear module 613. By driving the first lead screw assembly 612 through the first drive assembly 614, the first sliding plate 615 moves back and forth along the first linear module 613.

[0034] AsFigures 3 - 4 As shown, the first lead screw assembly 612 includes a first lead screw member 6121, a lead screw nut 6122, and a nut sleeve 6123; the first drive assembly 614 includes a first motor 6141, a first mounting seat 6142, and a slide bearing seat 6143 that are fixedly connected in sequence; one end of the first lead screw member 6121 passes through the slide bearing seat 6143 and the first mounting seat 6142 and is connected to the first motor 6141; the side of the slide bearing seat 6143 is fixed to the slide support 611; the first lead screw member 6121 movably penetrates through the lead screw nut 6122, and a nut sleeve 6123 is sleeved outside the lead screw nut 6122; the other end of the first lead screw member 6121 is further provided with a front bearing seat 6124, and the first lead screw member 6121 is fixed to the inner wall of the slide support 611 through the front bearing seat 6124; the first slide plate 615 is fixed to the side of the nut sleeve 6123; the first linear module 613 includes a first linear slide rail 6131, and a plurality of first linear sliders 6132 are provided on the first linear slide rail 6131; the first slide plate 615 is fixed to the first linear slider 6132; a plurality of cylindrical anti-collision pads 6133 are provided on the inner side of the slide bearing seat 6143 and / or the front bearing seat 6124.

[0035] As Figure 5 shown, the lifting module 62 includes a fixed bracket 621, a second drive assembly 622, a second lead screw assembly 623, a second linear module 624, and a top plate 625; the bottom of the second lead screw assembly 623 is suspended, the top is fixed to the top plate 625, and the side is connected to the second linear module 624; the second linear module 624 is installed on the inner walls of both sides of the fixed bracket 621; by driving the second lead screw assembly 623 to rotate through the second drive assembly 622, the second lead screw assembly 623 drives the top plate 625 to move up and down along the direction of the second linear module 624.

[0036] Combined with Figure 6As shown in the figure, the second driving assembly 622 includes a second motor 6221, a main synchronous pulley 6222, a belt 6223, and a slave synchronous pulley 6224; the main synchronous pulley 6222 is fixed to the second motor 6221; the second lead screw assembly 623 includes a second lead screw member 6231, a lifting lead screw locking block 6232, a lifting bearing support seat 6233, a lifting lead screw fixing member 6234, a lower buffer pad 6235 for the lifting lead screw, and a lower buffer stop 6236 for the lifting lead screw; one end of the second lead screw member 6231 is fixed to the top plate 625 through the lifting lead screw locking block 6232 and the lifting bearing support seat 6233, and the other end passes through the slave synchronous pulley 6224 and is connected to the lower buffer pad 6235 and the lower buffer stop 6236 for the lifting lead screw; the main synchronous pulley 6222 and the slave synchronous pulley 6224 are connected by the belt 6223; the lifting lead screw fixing member 6234 is sleeved on the outer layer on the lower side of the slave synchronous pulley 6224, and both sides are fixed to the second linear module 624; the diameter of the slave synchronous pulley 6224 is D, and the diameter of the slave synchronous pulley 6224 is d; where D≥2d.

[0037] As Figure 6 shown in the figure, the second linear module 624 includes a second linear slide rail 6241, a plurality of second linear sliders 6242, and a slider guide fixing seat 6243; the second linear slide rail 6241 is fixed to the inner side surfaces on both sides of the fixed bracket 621, the second linear sliders 6242 are arranged on the second linear slide rail 6241 and can move up and down relative to the second linear slide rail 6241; one side of the slider guide fixing seat 6243 is fixed to the second linear slider 6242, and the other side is connected to the lifting lead screw fixing member 6234.

[0038] As Figure 7 shown in the figure, the horizontal translation module 63 includes a cross beam seat 631, a gear rack 632, a third linear slide rail 633, a third driving assembly 634, a rear positioning stop block seat assembly 635, and a fixing handle 636; the cross beam seat 631 is fixed to the frame 1; the gear rack 632 and the third linear slide rail 633 are respectively arranged on both sides of the cross beam seat 631 and are parallel, and the gear of the gear rack 632 faces downward; combined Figure 8As shown, the third driving component 634 includes a third motor 6341, a speed reducer 6342, a rear positioning motor fixing seat 6343, and a motor cover 6346 connected in sequence. The motor cover 6346 is sleeved outside the third motor 6341 and the speed reducer 6342. The rotating shaft of the speed reducer 6342 passes through the rear positioning motor fixing seat 6343 and is connected with a cylindrical helical gear 6344. The cylindrical helical gear 6344 is arranged below the gear rack 632 and meshes with the gear rack 632. The other side of the rear positioning motor fixing seat 6343 is connected with the rear positioning stop block seat component 635. Combined with Figure 8 As shown, a third linear slider 6345 is arranged on the side of the rear positioning stop block seat component 635. The third linear slider 6345 is movably installed on the third linear slide rail 633. Driven by the third motor 6341, after the speed is reduced by the speed reducer 6342, the cylindrical helical gear 6344 rotates. Then, by using the meshing of the cylindrical helical gear 6344 and the gear rack 632, the cylindrical helical gear 6344 moves horizontally along the gear rack 632, thereby driving the rear positioning stop block seat component 635 and the fixed handle 636 to move horizontally along the slide rail 633.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention. Those skilled in the art can also make other changes within the spirit of the present invention for use in the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made in accordance with the spirit of the present invention should all be included within the scope claimed by the present invention.

Claims

1. A bending machine with high stability, characterized in that: It comprises a frame (1), an upper working platform (2), a lower working platform (3), a hydraulic system (4), an oil cylinder (5), a rear positioning component (6) and a control system (7); Oil cylinders (5) are installed on both sides of the upper part of the frame (1), and a piston rod is provided at the bottom of the oil cylinder (5). The piston rod is connected to the upper workbench (2) by a wedge block; The hydraulic system (4) is arranged on the upper part of the frame (1), and the hydraulic system (4) is connected to the oil cylinder (5) via an oil pipe (9); The lower workbench (3) is fixed on the workbench surface of the frame (1); The rear positioning assembly (6) is installed on the inner side of the lower part of the frame (1); The control system (7) is used to set processing parameters; the rear positioning component (6) moves to a specified position according to the parameters set by the control system (7), and by starting the hydraulic system (4), the piston rod is forced to drive the upper workbench (2) to pressurize in the direction of the lower workbench (3), thereby realizing the bending function; The rear positioning assembly (6) includes, from bottom to top, a slide module (61), a lifting module (62) and a horizontal translation module (63); the slide module (61) is installed at the bottom of the frame (1) to realize the forward and backward movement of the product; a group of lifting modules (62) is installed on the side of each group of the slide modules to realize the up and down movement of the product to a specified position; the two ends of the horizontal translation module (63) are respectively fixed on a group of lifting modules (62) to realize the horizontal movement of the product; The slide module (61) comprises a slide support (611), a first screw rod assembly (612), a first linear module (613), a first drive assembly (614) and a first slide plate (615); The slide support (611) is fixed to the side wall of the frame (1); One end of the first screw assembly (612) is fixed to the side wall of the slide support (611), and the other end is connected to the first driving assembly (614); The first linear modules (613) are divided into two groups, which are respectively arranged on two sides of the first screw assembly (612) and are respectively parallel to the two sides of the first screw assembly (612); One side of the first slide plate (615) is connected to the lifting module (62), and the middle of the other side is connected to the first screw rod assembly (612). The upper and lower ends of the first slide plate (615) are connected to the first linear module (613). The first screw rod assembly (612) is driven to move by the first driving assembly (614), so that the first slide plate (615) moves forward and backward along the first linear module (613). The first screw assembly (612) comprises a first screw member (6121), a screw nut (6122), and a nut sleeve (6123); The first driving assembly (614) comprises a first motor (6141), a first mounting seat (6142) and a sliding table bearing seat (6143) which are fixed in sequence; One end of the first screw rod (6121) passes through the slide bearing seat (6143) and the first mounting seat (6142) and is connected to the first motor (6141); the side of the slide bearing seat (6143) is fixed to the slide support (611); the first screw rod (6121) movably passes through the screw nut (6122), and a nut sleeve (6123) is sleeved on the outer side of the screw nut (6122); the other end of the first screw rod (6121) is also provided with a front bearing seat (6124), and the first screw rod (6121) is fixed to the inner wall of the slide support (611) through the front bearing seat (6124); The first slide plate (615) is fixed to the side of the nut sleeve (6123); The first linear module (613) includes a first linear slide rail (6131), on which a plurality of first linear sliders (6132) are provided; the first slider (615) is fixed to the first linear slider (6132); and a plurality of cylindrical anti-collision pads (6133) are provided on the inner side of the slide bearing seat (6143) and / or the front bearing seat (6124).

2. The bending machine according to claim 1, characterized in that: It also includes a foot switch (8), which is electrically connected to the control system (7). By pressing the foot switch (8), the hydraulic system (4) supplies oil to the inner cavity of the oil cylinder (5), forcing the piston rod to drive the upper workbench (2) to pressurize in the direction of the lower workbench (3), thereby realizing the bending function.

3. The bending machine according to claim 1, characterized in that: The lifting module (62) comprises a fixed bracket (621), a second driving assembly (622), a second screw assembly (623), a second linear module (624) and a top plate (625); The bottom of the second screw rod assembly (623) is suspended in the air, the top is fixed to the top plate (625), and the side is connected to the second linear module (624); The second linear module (624) is installed on the inner walls of both sides of the fixed bracket (621); The second screw assembly (623) is driven to rotate by the second driving assembly (622), so that the second screw assembly (623) drives the top plate (625) to move up and down along the direction of the second linear module (624).

4. The bending machine according to claim 3, characterized in that: The second driving assembly (622) comprises a second motor (6221), a main synchronous wheel (6222), a belt (6223), and a slave synchronous wheel (6224); the main synchronous wheel (6222) is fixed to the second motor (6221); The second screw rod assembly (623) comprises a second screw rod component (6231), a lifting screw rod locking block (6232), a lifting bearing support seat (6233), a lifting screw rod fixing component (6234), a lifting screw rod lower buffer pad (6235) and a lifting screw rod lower buffer stop (6236); One end of the second screw rod (6231) is fixed to the top plate (625) through the lifting screw rod locking block (6232) and the lifting bearing support seat (6233), and the other end passes through the slave synchronous wheel (6224) and is connected to the lifting screw rod lower buffer pad (6235) and the lifting screw rod lower buffer stop (6236); The main synchronous wheel (6222) and the slave synchronous wheel (6224) are connected via a belt (6223); The lifting screw fixing member (6234) is sleeved on the outer side of the slave synchronous wheel (6224), and is fixed to the second linear module (624) on both sides; The diameter of the slave synchronous wheel (6224) is D, and the diameter of the slave synchronous wheel (6224) is d; wherein D≥2d.

5. The bending machine according to claim 4, characterized in that: The second linear module (624) includes a second linear slide rail (6241), a plurality of second linear sliders (6242) and a slider guide fixing seat (6243); the second linear slide rail (6241) is fixed to the inner side surfaces of both sides of the fixed bracket (621), and the second linear slider (6242) is arranged on the second linear slide rail (6241) and can move up and down relative to the second linear slide rail (6241); one side of the slider guide fixing seat (6243) is fixed to the second linear slider (6242), and the other side is connected to the lifting screw fixing member (6234).

6. The bending machine according to claim 1, characterized in that: The horizontal translation module (63) comprises a crossbeam seat (631), a gear bar (632), a third linear slide rail (633), a third driving assembly (634), a rear positioning block seat assembly (635) and a fixed handle (636); The crossbeam seat (631) is fixed on the frame (1); the gear bar (632) and the third linear slide rail (633) are respectively arranged on both sides of the crossbeam seat (631) and are parallel, and the gear of the gear bar (632) faces downward; The third driving assembly (634) includes a third motor (6341), a reducer (6342), and a rear positioning motor fixing seat (6343) which are connected in sequence; the rotating shaft of the reducer (6342) passes through the rear positioning motor fixing seat (6343) and is connected to a cylindrical bevel gear (6344); the cylindrical bevel gear (6344) is arranged below the gear bar (632) and meshes with the gear bar (632); the other side of the rear positioning motor fixing seat (6343) is connected to the rear positioning block seat assembly (635); a third linear slider (6345) is arranged on the side of the rear positioning block seat assembly (635); the third linear slider (6345) is movably mounted on the third linear slide rail (633).

7. The bending machine according to claim 1, characterized in that: Oil cylinder mounting positions (11) are provided on both sides of the upper part of the frame (1), and a hydraulic station mounting position (12) is provided in the middle of the upper part of the frame (1); the slide module (61) is divided into two groups, and the hydraulic system (4) and the oil cylinder (5) are respectively divided into two groups, and each group of the hydraulic system (4) and the oil cylinder (5) cooperates with one group of the slide module (61) to operate.

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