Numerical control bending machine for plate processing

Abstract

The numerical control bending machine comprises a rack and two cutting positioning mechanisms installed in the rack, a lower bending die is arranged at the lower end of the rack, each cutting positioning mechanism comprises a bottom frame fixed to the lower end of the rack and located on the outer side of the lower bending die, a vertical frame is arranged on the bottom frame in a sliding mode, and the vertical frame is fixed to the lower end of the rack and located on the outer side of the lower bending die. Two positioning plates are oppositely arranged in the vertical frame, a plate piece is fed between the two positioning plates, and an adjusting component is arranged between the two positioning plates; according to the plate bending device, the fed plate can be positioned and guided, the feeding flatness of the plate is guaranteed, the situation that the bending quality is affected due to deviation is avoided, meanwhile, the guiding and feeding range of the plate can be expanded, meanwhile, the positioned plate is cut according to the needed bending size, and the bending quality is improved. The situation that the bending effect is affected due to the fact that one end of the cut plate piece is long and falls is avoided, and factors affecting the bending quality are reduced.

Description

Technical Field

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

[0002] CNC bending machine uses the equipped mold (general or special mold) to bend the cold metal sheet into workpieces of various geometric cross-sectional shapes. It is a sheet forming machine designed for cold rolled sheet metal processing and is widely used in sheet bending processing in industries such as automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, and railway vehicles.

[0003] For example, a CNC bending machine with publication number CN114653791B includes a bending machine body, a lower bending die assembly and an upper bending die assembly. The lower bending die assembly and the upper bending die assembly are arranged opposite to each other, and a lifting component is provided on the top of the bending machine body; the lower bending die assembly includes a bending rod shaft, a lower die roller body, an adjusting part, a bottom support plate and two supporting parts.

[0004] In the above patents, some sheet materials may be relatively long, while the size of the bending workpiece is relatively small. After bending, the sheet materials are cut into the required size. However, the longer end falls during bending, which may cause deformation of the sheet materials and affect the bending quality. In addition, there is a lack of corresponding positioning measures for the feeding of sheet materials, and the two ends of the sheet materials may be offset, resulting in deviation at the bending point. For this reason, we propose a CNC bending machine for sheet material processing. Summary of the invention

[0005] The object of the present invention is to provide a CNC bending machine for plate processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a CNC bending machine for plate processing, comprising a frame and two sets of cutting and positioning mechanisms installed inside the frame, a lower bending die is arranged at the lower end of the frame, the cutting and positioning mechanism comprises a bottom frame fixed at the lower end of the frame and located outside the lower bending die, a vertical frame is slidably arranged on the bottom frame, two positioning plates are relatively arranged inside the vertical frame, a plate piece is fed between the two positioning plates, and an adjusting member is arranged between the two positioning plates; A lifting cylinder is vertically arranged inside the stand, and a cutting die is arranged at the lower end of the lifting cylinder; The regulating member comprises a horizontal plate installed inside the vertical frame, an elliptical plate is rotatably arranged above the middle of the horizontal plate, and a rotating plate is rotatably arranged between the two ends of the elliptical plate and the inner surface of the positioning plate.

[0007] Preferably, a walking component is provided between the outer surface of the vertical frame and the base frame, the walking component includes a side rail fixed on the outer surface of the base frame, a U-shaped outer frame is provided on the outer side of the side rail, a driving motor is provided on the front surface of the vertical frame, a walking gear is provided at the lower end of the driving motor, and the inner surface of the outer frame is provided with internal teeth meshing with the walking gear along its length direction.

[0008] Preferably, the adjusting member also includes a sliding hole on the surface of the transverse plate, a supporting slide plate cooperating with the sliding hole is provided on the lower surface of the positioning plate, a telescopic cylinder is provided on the lower surface of the positioning plate located in the front, a support block is provided on the middle upper surface of the transverse plate, and the elliptical plate is rotatably installed above the support block.

[0009] Preferably, the upper surfaces at both ends of the elliptical plate are provided with fixing columns rotatably connected to the inner ends of the two rotating plates respectively, and the piston rod inside the telescopic cylinder is fixed to the surface of the support block.

[0010] Preferably, an upper bending die located above the lower bending die is arranged below the upper end of the frame, a mounting frame is arranged on the outer side of the upper bending die, a pushing component is arranged on the mounting frame and the rear surface of the lower bending die, the pushing component includes a pushing block located behind the lower bending die, a support plate is arranged on the rear surface of the base frame, a guide rod penetrating the support plate is arranged on the rear surface of the pushing block, an inner plate is arranged at the rear end of the guide rod, and a side plate located on the outer side of the upper end of the inner plate is arranged on the rear surface of the upper bending die.

[0011] Preferably, a lower wedge block is provided on the inner surface of the side plate, an upper wedge block which fits with the inclined surface of the lower wedge block is provided on the outer surface of the upper end of the inner plate, and a reset piece is sleeved on the guide rod.

[0012] Preferably, a storage mechanism is provided in front of the upper bending die, and the storage mechanism includes a blanking plate inclined in front of the upper bending die, a storage box is provided below the blanking plate, a plurality of partition plates are crisscrossed inside the storage box, support frames are provided on both sides of the blanking plate, and a downward shifting component for shifting the bending workpiece downward and flipping it is provided on the side of the support frame.

[0013] Preferably, the lower shifting component includes side gears and a disc rotatably installed on both sides of the support frame, the side gears and the outer sides of the disc are provided with connecting plates, a lower shifting rod is provided between the two connecting plates, a moving rack is meshedly provided below the side gear, and a driving cylinder is provided at the rear end of the moving rack.

[0014] Preferably, a movable component is provided on the lower surface of the storage box, and the movable component includes two bottom rails located below the storage box, a bottom slide is slidably provided between the two bottom rails, a longitudinal screw rod is provided inside the bottom slide, a stabilizing seat is provided on the upper surface of the bottom slide, a transverse screw rod is provided between the stabilizing seats, and a bottom nut seat threadedly sleeved on the transverse screw rod is provided on the lower surface of the storage box.

[0015] Preferably, roller members for supporting the plate members are arranged at the inner ends of the two opposite positioning plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can position and guide the sheet materials to ensure the flatness of the sheet materials, and will not cause deviation and affect the bending quality. At the same time, it can expand the guided feeding range of the sheet materials, and cut the positioned sheet materials according to the required bending size. After the cutting, the bending of the sheet materials will not cause one end to fall longer and affect the bending effect, thereby reducing the factors affecting the bending quality.

[0017] (2) The pusher member designed in the present invention can drive the pusher member to work while the upper bending die moves upward, thereby driving the pusher block to push the bent workpiece forward, thereby facilitating the rapid unloading of the bent workpiece and realizing continuous loading and bending of sheet metal parts and unloading and collection of the bent workpiece.

[0018] (3) The present invention adopts a storage mechanism that is designed to neatly store the bent workpieces that have been cut, and each bent workpiece is stored in a corresponding storage space, thereby reducing surface scratches and wear caused by collisions between the bent workpieces during cutting, improving the surface processing quality and smoothness of the bent workpieces, and reducing the trouble of extra sorting of the scattered bent workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the CNC bending machine of the present invention; Figure 2 It is a rear view structural schematic diagram of the CNC bending machine of the present invention; Figure 3 For the present invention Figure 1 A schematic diagram of the structure of the cooperation between the cutting and positioning mechanism and the sheet member; Figure 4 For the present invention Figure 3 The structural diagram of the middle cutting positioning mechanism; Figure 5 For the present invention Figure 4 The structural diagram of the middle regulating component; Figure 6 For the present invention Figure 2 The structural schematic diagram of the middle pusher component; Figure 7 For the present invention Figure 1 A schematic diagram of the structure of the storage mechanism; Figure 8 For the present invention Figure 7 Structural schematic diagram of the middle and lower lever components; Fig. 9 For the present invention Figure 7 A schematic diagram of the structure of the movable member viewed from above; In the figure: 100, frame; 101, upper bending die; 102, lower bending die; 103, sheet member; 104, mounting frame; 200, cutting positioning mechanism; 201, bottom frame; 202, vertical frame; 203, walking member; 2031, side rail; 2032, outer frame; 2033, inner teeth; 2034, driving motor; 2035, walking gear; 204, positioning plate; 205, cutting die; 206, lifting cylinder; 207, roller member; 208, adjusting member; 2081, horizontal plate; 2082, supporting block; 2083, elliptical plate; 2084, fixing column; 2085, rotating plate; 2086, telescopic cylinder; 2087, supporting slide plate; 209, cleaning Plate; 300, storage mechanism; 301, blanking plate; 302, storage box; 303, support frame; 304, lower shifting member; 3041, side gear; 3042, moving rack; 3043, driving cylinder; 3044, connecting plate; 3045, lower shifting rod; 305, partition plate; 306, moving member; 3061, bottom rail; 3062, bottom slide plate; 3063, longitudinal screw rod; 3064, stabilizing seat; 3065, transverse screw rod; 3066, bottom nut seat; 400, pushing member; 401, side plate; 402, lower wedge block; 403, upper wedge block; 404, inner plate; 405, pushing block; 406, support plate; 407, guide rod; 408, reset member. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 - Figure 5The present invention provides a technical solution: a CNC bending machine for plate processing, comprising a frame 100 and two sets of cutting and positioning mechanisms 200 installed inside the frame 100. The cutting and positioning mechanisms 200 can be used to position and guide the feeding plate 103 to ensure the feeding flatness of the plate 103, so that there will be no deviation and the bending quality will not be affected. At the same time, the guiding feeding range of the plate 103 can be expanded, and the positioned plate 103 can be cut according to the required bending size. The plate 103 after cutting will not fall at one end when bent, so as to reduce the factors affecting the bending quality. The lower end of the frame 100 is provided with a lower bending die 102, and the cutting and positioning mechanism 200 includes a fixed The bottom frame 201 is at the lower end of the frame 100 and is located outside the lower bending die 102. The bottom frame 201 is U-shaped. A vertical frame 202 is slidably arranged on the bottom frame 201. Two positioning plates 204 are relatively arranged inside the vertical frame 202. Cleaning plates 209 are staggeredly arranged on the inner surfaces of the two positioning plates 204. The lower surface of the cleaning plate 209 is a cotton layer. When the sheet member 103 is fed, the surface of the sheet member 103 can be cleaned to reduce the influence of particles on the bending of the workpiece. The sheet member 103 is fed between the two positioning plates 204. An adjusting member 208 is arranged between the two positioning plates 204. The distance between the two positioning plates 204 can be changed by using the adjusting member 208, so as to facilitate the adaptation of sheet members 103 of different sizes. A lifting cylinder 206 is vertically arranged inside the vertical frame 202, and a cutting die 205 is arranged at the lower end of the lifting cylinder 206. The two are detachably connected, which is convenient for replacing the cutting die 205. The lifting cylinder 206 can drive the cutting die 205 to lift and lower for cutting the sheet member 103. A horizontal frame supporting the lifting cylinder 206 is arranged on the upper surface of the vertical frame 202, and the horizontal frame is fixed to the surface of the vertical frame 202 by screws. The two are convenient for disassembly and assembly, and the horizontal frame is replaceable, which is convenient for the cutting die 205 to be located outside the positioning plate 204 without affecting the movement and adjustment of the positioning plate 204. The adjusting member 208 includes a horizontal plate 2081 horizontally installed inside the vertical frame 202, an elliptical plate 2083 is rotatably arranged above the middle of the horizontal plate 2081, a rotating plate 2085 is rotatably arranged between the two ends of the elliptical plate 2083 and the inner surface of the positioning plate 204, one end of the rotating plate 2085 is installed at the center of the positioning plate 204, and the other end of the rotating plate 2085 is rotatably connected to the fixed column 2084.

[0022] In this embodiment, preferably, a walking component 203 is provided between the outer surface of the vertical frame 202 and the bottom frame 201. The walking component 203 can be used to change the positions of the vertical frame 202 and the cutting die 205, so as to facilitate the cutting die 205 to cut the sheet material 103 at a suitable position. The walking component 203 includes a side rail 2031 fixed on the outer surface of the bottom frame 201, a sliding sleeve mounted on the side rail 2031 is provided on the inner surface of the vertical frame 202, a U-shaped outer frame 2032 is provided on the outer side of the side rail 2031, a driving motor 2034 is provided on the front surface of the vertical frame 202, a walking gear 2035 is provided at the lower end of the driving motor 2034, and an inner surface of the outer frame 2032 is provided with inner teeth 2033 meshing with the walking gear 2035 along its length direction. As the walking gear 2035 rotates, it can walk along the inner teeth 2033 in meshing.

[0023] In this embodiment, preferably, the adjusting member 208 also includes a sliding hole on the surface of the transverse plate 2081, and a supporting slide plate 2087 cooperating with the sliding hole is provided on the lower surface of the positioning plate 204. The lower end of the supporting slide plate 2087 is I-shaped, and while cooperating with the sliding hole, it provides stable support to the positioning plate 204. A telescopic cylinder 2086 is provided on the lower surface of the positioning plate 204 located in the front, and a support block 2082 is provided on the middle upper surface of the transverse plate 2081. The support block 2082 is convenient for cooperating with the telescopic cylinder 2086, and the elliptical plate 2083 is rotatably installed above the support block 2082.

[0024] In this embodiment, preferably, fixed columns 2084 are provided on the upper surfaces of both ends of the elliptical plate 2083, which are respectively rotatably connected to the inner ends of the two rotating plates 2085. The piston rod inside the telescopic cylinder 2086 is fixed on the surface of the support block 2082. As the elliptical plate 2083 rotates, the position of the fixed column 2084 is driven to move, and the rotating plate 2085 connected to the fixed column 2084 moves.

[0025] In summary, when in use, the position of the positioning plate 204 can be changed according to the width of the plate member 103, the telescopic cylinder 2086 works, and the internal piston rod extends. Since the support block 2082 is fixed to the surface of the cross plate 2081, the piston rod extends to drive the cylinder body and the positioning plate 204 in the front to move forward, and the support slide plate 2087 slides in the slide hole. The positioning plate 204 in the front moves, driving the rotating plate 2085 to rotate, the left end of the elliptical plate 2083 rotates forward, and the right end of the elliptical plate 2083 rotates backward, and the rear positioning plate 204 and the right end of the elliptical plate 2083 are connected through the rotating plate 2084. 85 is connected, so the rear positioning plate 204 moves backward, so that the two positioning plates 204 move back or relative to each other at the same time, thereby changing the positioning distance of the sheet member 103. When the positioning distance is appropriate, the sheet member 103 feeding will fit the inner surface of the positioning plate 204 and contact the cotton layer on the lower surface of the cleaning plate 209, rubbing the particles attached to the surface outward to accumulate, and keeping the surface of the sheet member 103 passing through the cleaning plate 209 clean. When the length of the sheet member 103 passing through the cutting die 205 is appropriate, the lifting cylinder 206 drives the cutting die 205 to move downward to the sheet member 10 3 cutting, the cut part is located on the upper surface of the lower bending die 102, and the sheet member 103 can be bent at this time. The distance between the cutting die 205 and the lower bending die 102 can be adjusted according to the size of the sheet member 103 to be cut. The farther the cutting die 205 is from the lower bending die 102, the longer the sheet member 103 left on the lower bending die 102 after cutting. Therefore, when the distance of the cutting die 205 needs to be changed, the driving motor 2034 can be operated to drive the travel gear 2035 to rotate, and the travel gear 2035 is meshed with the inner teeth 2033, so the two When the two are meshed, the traveling gear 2035 moves, and because the driving motor 2034 is installed on the stand 202, the stand 202 is slidably connected to the side rail 2031 through a sliding sleeve, and the stand 202 is limited, so it will not deflect with the traveling gear 2035, but will move with the traveling gear 2035. The movement of the stand 202 will drive the cutting die 205 to move, allowing the cutting die 205 to approach or be close to the bending die 102, thereby expanding the processing range of the sheet member 103, increasing the convenience and stability of the bending processing of the sheet member 103, and reducing the factors affecting the bending quality of the sheet member 103.

[0026] Reference Figure 6 , which is the second embodiment of the present invention.

[0027] In this embodiment, preferably, an upper bending die 101 located above the lower bending die 102 is arranged below the upper end of the frame 100, a mounting frame 104 is arranged on the outer side of the upper bending die 101, and a pushing member 400 is arranged on the rear surface of the mounting frame 104 and the lower bending die 102. By setting the pushing member 400, the pushing member 400 can be driven to work while the upper bending die 101 moves upward, and the pushing block 405 is driven to push the bent workpiece forward, so as to facilitate the rapid unloading of the bent workpiece and realize the continuous loading and bending of the sheet material 103. The pushing member 400 includes a pushing block 405 located behind the lower bending die 102, and the shape of the pushing block 405 is convenient for matching with the mold cavity on the surface of the lower bending die 102. A support plate 406 is arranged on the rear surface of the bottom frame 201, and a guide rod 407 penetrating the support plate 406 is arranged on the rear surface of the pushing block 405. An inner plate 404 is provided at the rear end of the guide rod 407. The inner plate 404 can be Z-shaped, while the side plate 401 is L-shaped, so that the inner plate 404 is located on the inner side of the side plate 401. The rear surface of the upper bending mold 101 is provided with a side plate 401 located on the outer side of the upper end of the inner plate 404. A lower wedge block 402 is provided on the inner surface of the side plate 401. An upper wedge block 403 that fits with the inclined surface of the lower wedge block 402 is provided on the outer surface of the upper end of the inner plate 404. The sizes of the upper wedge block 403 and the lower wedge block 402 can be set as needed. The distance between the inclined surfaces of the upper wedge block 403 and the lower wedge block 402 is sufficient for the push block 405 to move forward to push the bent workpiece to unload. A reset member 408 is sleeved on the guide rod 407. The two ends of the reset member 408 are respectively fixed on the support plate 406 and the surface of the inner plate 404. The cross-section of the guide rod 407 is rectangular, which will only allow the guide rod 407 to move forward and backward without deflection.

[0028] In summary, when the upper bending die 101 moves downward to cooperate with the lower bending die 102 to process the sheet member 103, the downward movement of the upper bending die 101 will drive the side plate 401 and the lower wedge block 402 to move downward, and the lower wedge block 402 will be separated from the upper wedge block 403. After the sheet member 103 is bent, the upper bending die 101 moves upward, driving the side plate 401 and the lower wedge block 402 to move upward, and the inclined surface of the lower wedge block 402 contacts the upper wedge block 403. As the lower wedge block 402 continues to move upward, the inclined surface pushes the upper wedge block 403 and the inner plate 404 to move forward, driving the guide rod 407 and the push block 405 to move forward, the reset member 408 is gradually compressed, and the push block 405 is The bent workpiece is pushed forward until it is unloaded, and the upper surface of the push block 405 will not exceed the mold cavity on the surface of the lower bending die 102. Therefore, it will not affect the continued feeding of the sheet 103. The upper bending die 101 moves downward and the lower wedge block 402 gradually separates from the inclined surface of the upper wedge block 403. The reset part 408 will restore its elasticity without restriction, driving the inner plate 404 and the push block 405 to move backward. Before the upper bending die 101 contacts and bends the sheet 103, the push block 405 will be located on the outside of the lower bending die 102, which will not affect the normal bending processing of the sheet 103. The whole process saves the unloading time of the bent workpiece and improves the efficiency and convenience of the entire bending processing of the sheet 103.

[0029] Reference Figure 7 - Fig. 9 , which is the third embodiment of the present invention.

[0030] In the present embodiment, preferably, a storage mechanism 300 is provided in front of the upper bending die 101. By providing the storage mechanism 300, the bent workpieces being unloaded can be neatly stored, and each bent workpiece is stored in a corresponding storage space, respectively, thereby reducing surface scratches and wear caused by collisions between the bent workpieces when unloading, improving the surface processing quality and smoothness of the bent workpieces, and reducing the trouble of extra sorting of the scattered bent workpieces. The storage mechanism 300 includes a blanking plate 301 obliquely located in front of the upper bending die 101, a storage box 302 is provided below the blanking plate 301, a plurality of partition plates 305 are crisscrossed inside the storage box 302, and the plurality of crisscrossed partition plates 305 divide the storage box 302 into a plurality of spaces for storing the bent workpieces, and the inner wall of the space can be provided with a buffering soft layer to protect the bent workpieces. , support frames 303 are provided on both sides of the blanking plate 301, which play a supporting and reinforcing role for the blanking plate 301, and a lower shifting component 304 is provided on the side of the support frame 303 for shifting and flipping the bent workpiece downward, and the lower shifting component 304 can be used to shift and flip the bent workpiece downward, so that the bent workpiece is in a vertical storage state when being unloaded, and the storage regularity of the bent workpiece is maintained. The lower shifting component 304 includes a side gear 3041 and a disc rotatably mounted on both sides of the support frame 303, and the side gear 3041 and the outer side of the disc are both provided with a connecting plate 3044, and a lower shifting rod 3045 is provided between the two connecting plates 3044, and the lower shifting rod 3045 can rotate a certain angle with the side gear 3041, and a moving rack 3042 is meshed below the side gear 3041, and a driving cylinder 3043 is provided at the rear end of the moving rack 3042.

[0031] In this embodiment, preferably, a moving member 306 is provided on the lower surface of the storage box 302. The moving member 306 can be used to allow the storage box 302 to move longitudinally or transversely, so as to facilitate the collection of the bent workpieces. The moving member 306 includes two bottom rails 3061 located below the storage box 302, and a bottom slide 3062 is slidably provided between the two bottom rails 3061. The two are slidably connected, and while supporting the storage box 302, the movement of the storage box 302 and the bottom slide 3062 is not affected. The bottom slide 3062 is internally A longitudinal screw rod 3063 is provided, and a stabilizing seat 3064 is provided on the upper surface of the bottom slide plate 3062, a transverse screw rod 3065 is provided between the stabilizing seats 3064, and motors are provided at the ends of the transverse screw rod 3065 and the longitudinal screw rod 3063 to provide a power source, and a bottom nut seat 3066 threadedly sleeved on the transverse screw rod 3065 is provided on the lower surface of the storage box 302, and a limiting long rod penetrating the bottom nut seat 3066 is provided between the two stabilizing seats 3064, which plays a guiding and limiting role for the bottom nut seat 3066.

[0032] In this embodiment, preferably, roller members 207 for supporting the sheet member 103 are provided at the inner ends of the two relative positioning plates 204, and baffles larger than the roller member 207's own diameter are sleeved at the front and rear ends. The roller member 207 further supports the sheet member 103 to prevent it from falling, and a supporting vertical plate is provided between the roller member 207 and the positioning plate 204 to support the roller member 207.

[0033] In summary, when in use, the bent workpiece is pushed and falls into the blanking plate 301, and moves downward along the blanking plate 301 under the action of inertia. When the bent workpiece moves to the end of the blanking plate 301 and a part of the end extends out, the driving cylinder 3043 works at this time, and the piston rod inside the driving cylinder 3043 retracts, driving the moving rack 3042 to move, and the meshing side gear 3041 rotates counterclockwise, driving the connecting plate 3044 and the lower lever 3045 provided thereon to rotate downward, and the lower lever 3045 contacts the extended part of the bent workpiece, and continues to make the lower end of the bent workpiece rotate downward and the upper end tilt upward, the bent workpiece is in a state similar to a vertical state, and the bending workpiece The weight of the workpiece is greater than the friction resistance between the lower lever 3045 and the end of the unloading plate 301, so the bent workpiece will move downward and drop into the space in the storage box 302. After the bent workpiece is unloaded, the piston rod inside the driving cylinder 3043 is extended, driving the side gear 3041 to rotate clockwise, allowing the lower lever 3045 to rotate upward and return to its original position. The longitudinal screw rod 3063 and the transverse screw rod 3065 can be used to change the longitudinal or transverse position of the storage box 302, which is convenient for better storage of the bent workpiece, maintains the regularity of the storage of the bent workpiece, and will not be affected by impact friction during storage, thereby increasing the convenience of bending the sheet member 103 and improving the bending efficiency.

[0034] This embodiment is obtained by combining Embodiment 1, Embodiment 2 and Embodiment 3.

[0035] When in use, the cutting and positioning mechanism 200 can be used to position and cut the fed sheet material 103, so as to maintain the accuracy of the bending position of the sheet material 103 and reduce factors affecting the bending quality. After the workpiece is bent, as the upper bending die 101 moves upward, the pushing member 400 will drive the workpiece forward, and the pushed workpiece will fall into the storage mechanism 300 for neatness and storage, so as to maintain the neatness of the workpiece storage and reduce the collision and wear of the workpiece during the storage process.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC bending machine for plate processing, comprising a frame (100) and two sets of cutting and positioning mechanisms (200) installed inside the frame (100), wherein a lower bending die (102) is provided at the lower end of the frame (100), characterized in that: The cutting positioning mechanism (200) comprises a bottom frame (201) fixed at the lower end of the frame (100) and located outside the lower bending die (102); a vertical frame (202) is slidably arranged on the bottom frame (201); two positioning plates (204) are arranged opposite to each other inside the vertical frame (202); a sheet material (103) is fed between the two positioning plates (204); and an adjusting member (208) is arranged between the two positioning plates (204); A lifting cylinder (206) is vertically arranged inside the stand (202), and a cutting die (205) is arranged at the lower end of the lifting cylinder (206); The adjusting member (208) comprises a horizontal plate (2081) installed horizontally inside the vertical frame (202), an elliptical plate (2083) is rotatably arranged above the middle of the horizontal plate (2081), and rotating plates (2085) are rotatably arranged between the two ends of the elliptical plate (2083) and the inner surface of the positioning plate (204).

2. A CNC bending machine for plate processing according to claim 1, characterized in that: A walking component (203) is arranged between the outer surface of the vertical frame (202) and the bottom frame (201), the walking component (203) comprising a side rail (2031) fixed to the outer surface of the bottom frame (201), a U-shaped outer frame (2032) being arranged outside the side rail (2031), a driving motor (2034) being arranged on the front surface of the vertical frame (202), a walking gear (2035) being arranged at the lower end of the driving motor (2034), and an inner tooth (2033) meshing with the walking gear (2035) being arranged on the inner surface of the outer frame (2032) along its length direction.

3. A CNC bending machine for plate processing according to claim 1, characterized in that: The adjusting member (208) further comprises a horizontal plate (2081) having a sliding hole on its surface, a supporting slide plate (2087) cooperating with the sliding hole being arranged on the lower surface of the positioning plate (204), a telescopic cylinder (2086) being arranged on the lower surface of the positioning plate (204) located at the front, a supporting block (2082) being arranged on the middle upper surface of the horizontal plate (2081), and the elliptical plate (2083) being rotatably mounted above the supporting block (2082).

4. A CNC bending machine for plate processing according to claim 3, characterized in that: The upper surfaces of both ends of the elliptical plate (2083) are provided with fixed columns (2084) rotatably connected to the inner ends of the two rotating plates (2085), and the piston rod inside the telescopic cylinder (2086) is fixed to the surface of the support block (2082).

5. The CNC bending machine for plate processing according to claim 1, characterized in that: An upper bending die (101) located above the lower bending die (102) is arranged below the upper end of the frame (100); a mounting frame (104) is arranged outside the upper bending die (101); a pushing member (400) is arranged between the mounting frame (104) and the rear surface of the lower bending die (102); the pushing member (400) comprises a pushing block (405) located behind the lower bending die (102); a supporting plate (406) is arranged on the rear surface of the base frame (201); a guide rod (407) penetrating the supporting plate (406) is arranged on the rear surface of the pushing block (405); an inner plate (404) is arranged at the rear end of the guide rod (407); and a side plate (401) located outside the upper end of the inner plate (404) is arranged on the rear surface of the upper bending die (101).

6. A CNC bending machine for plate processing according to claim 5, characterized in that: The inner surface of the side plate (401) is provided with a lower wedge block (402), the outer surface of the upper end of the inner plate (404) is provided with an upper wedge block (403) that fits the inclined surface of the lower wedge block (402), and the guide rod (407) is sleeved with a reset piece (408).

7. The CNC bending machine for plate processing according to claim 5, characterized in that: A storage mechanism (300) is arranged in front of the upper bending die (101), and the storage mechanism (300) comprises a blanking plate (301) which is inclined and located in front of the upper bending die (101), a storage box (302) is arranged below the blanking plate (301), a plurality of partition plates (305) are arranged in a crisscross pattern inside the storage box (302), support frames (303) are arranged on both sides of the blanking plate (301), and a lowering member (304) for lowering and flipping the bending workpiece is arranged on the side of the support frame (303).

8. A CNC bending machine for plate processing according to claim 7, characterized in that: The lower shifting member (304) comprises a side gear (3041) and a disc rotatably mounted on both sides of the support frame (303); the side gear (3041) and the outer side of the disc are both provided with a connecting plate (3044); a lower shifting rod (3045) is provided between the two connecting plates (3044); a movable rack (3042) is meshedly provided below the side gear (3041); and a driving cylinder (3043) is provided at the rear end of the movable rack (3042).

9. A CNC bending machine for plate processing according to claim 7, characterized in that: A movable member (306) is arranged on the lower surface of the storage box (302), the movable member (306) comprising two bottom rails (3061) located below the storage box (302), a bottom slide plate (3062) being slidably arranged between the two bottom rails (3061), a longitudinal screw rod (3063) being arranged inside the bottom slide plate (3062), a stabilizing seat (3064) being arranged on the upper surface of the bottom slide plate (3062), a transverse screw rod (3065) being arranged between the stabilizing seats (3064), and a bottom nut seat (3066) being threadedly sleeved on the transverse screw rod (3065) being arranged on the lower surface of the storage box (302).

10. The CNC bending machine for plate processing according to claim 1, characterized in that: Roller members (207) for supporting the plate member (103) are arranged at the inner ends of the two opposite positioning plates (204).

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