A bending device for the production of cabinet sheet metal

Abstract

The present invention relates to the technical field of bending equipment, and specifically to a bending device for cabinet sheet metal production, the bending device comprising a feeding platform and a bending mechanism, wherein a spring sheet is provided on the feeding platform, the spring sheet being an arc-shaped structure, the number of the spring sheets being multiple, the multiple spring sheets being divided into two groups, the two groups of spring sheets being symmetrically arranged with concave surfaces facing each other, and the multiple spring sheets in the same group being concentrically arranged; each spring sheet being provided with at least two mounting seats, all the mounting seats on the same spring sheet being arranged circumferentially; each mounting seat being rollingly inserted with a ball; the bending mechanism being used to bend the cabinet sheet material. When a convex defect is present on the sheet material and the sheet material rotates, the convex defect collides with a first ball, and the compression deformation of the spring sheet simultaneously drives the adjacent second ball to move downward, thereby weakening the collision effect on the second ball, thereby facilitating reduction of damage caused by the collision between the cabinet sheet material and the ball due to deformation of the cabinet sheet material.

Description

Technical Field

[0001] The present invention relates to the technical field of bending equipment, and in particular to a bending device for cabinet sheet metal production. Background Art

[0002] The production process of cabinet sheet metal involves a series of closely related and crucial links, including design, material preparation, processing, assembly, and quality control. Among them, in the processing link, the trimming, shearing, punching, and bending operations performed on the cabinet sheet directly affect the final quality and performance of the cabinet.

[0003] When bending the cabinet body panels, a bending center is needed. In the related technology, Chinese patent application CN115958095A discloses a flexible bending center for panel processing. The flexible bending center for panel processing includes a feeding platform. Several support sleeves are provided on the top of the feeding platform. A mounting groove is provided on the top of the support sleeve. A second spring is vertically provided in the mounting groove. A mounting block is provided on the top of the second spring. A movably connected ball is provided on the top of the mounting block, so that elastic support for the ball can be achieved, thereby effectively avoiding rigid contact between the panel and the ball, which is beneficial to reducing damage caused by collision between the panel and the ball.

[0004] However, there are also some problems when using the above-mentioned flexible bending center for plate processing: when the plate itself has surface defects due to processing, transportation, etc., such as convexity, the defect will cause the bottom surface of the plate to be non-flat, and then when the plate rotates, the defect will cause a high-intensity collision with all the balls in the same circumferential direction. Since the collision effects on these balls are similar, the life of these balls is relatively short, which in turn leads to a short replacement cycle of these balls, affecting the processing efficiency of the plate. Summary of the Invention

[0005] Based on this, it is necessary to provide a bending device for cabinet sheet metal production to address the problem of low processing efficiency in the current cabinet sheet metal bending process.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A bending device for cabinet sheet metal production, comprising a feeding platform and a bending mechanism;

[0008] Wherein, the feeding platform is provided with a spring piece, the spring piece is an arc-shaped structure, there are multiple spring pieces, and the multiple spring pieces are divided into two groups. The two groups of spring pieces are symmetrically arranged, and the concave surfaces are opposite to each other. The multiple spring pieces in the same group are concentrically arranged and arranged in the radial direction; each of the spring pieces is provided with at least two mounting seats, all the mounting seats on the same spring piece are arranged along the circumferential direction, and the number of the mounting seats on different spring pieces increases from the inside to the outside; each mounting seat is rollingly inserted with a ball, and the ball is configured to form a rolling fit with the cabinet plate; the rotation axis of the cabinet plate coincides with the center of the circle of the spring piece;

[0009] The bending mechanism is configured to be able to bend the cabinet plate.

[0010] Furthermore, at least two oil storage chambers are provided inside each of the elastic pieces, and the oil storage chambers are connected to the mounting seat. Lubricating oil is stored in each of the oil storage chambers, and the lubricating oil is configured to lubricate the ball bearings.

[0011] Furthermore, the bending device for cabinet sheet metal production further includes a one-way damping portion, which is configured to generate damping for the elastic resetting of the spring.

[0012] Furthermore, the one-way damping part includes a plurality of one-way damping cylinders, which are arranged corresponding to the mounting seat and arranged between the spring sheet and the feeding platform, and the output shaft of the one-way damping cylinder is arranged on the spring sheet.

[0013] Furthermore, the bending mechanism includes a guide groove, a pressure arm frame, a rotating clamping part and a bending assembly, the guide groove is arranged on the feeding platform; the two groups of spring sheets are symmetrically arranged on both sides of the guide groove; the pressure arm frame is inserted into the guide groove and can slide along the guide groove; the rotating clamping part is arranged on the pressure arm frame and is configured to clamp and rotate the cabinet plate; the bending assembly is configured to bend the cabinet plate in a vertical direction.

[0014] Furthermore, the rotating clamping part includes two clamping blocks, which are arranged in the vertical direction. One of the clamping blocks is arranged above the feeding platform and can move in the vertical direction and rotate around a first axis. The other clamping block is inserted in the guide groove and can rotate around the first axis. The first axis extends in the vertical direction and coincides with the center of the spring.

[0015] Furthermore, the bending assembly includes a base, a pressing frame and a bending portion, and the base and the feeding platform are arranged closely; the pressing frame is arranged on the base, and can slide in the vertical direction, and is configured to press the cabinet sheet material on the base; the bending portion is arranged on the base, and can slide in the vertical direction, and is configured to form a stop fit with the cabinet sheet material.

[0016] Furthermore, the bending device for cabinet sheet metal production also includes a driving mechanism, and the driving mechanism is configured to provide a driving force for the pressure arm to slide along the guide groove.

[0017] Furthermore, the bending device for cabinet sheet metal production also includes a cleaning component, and the cleaning component is configured to clean the back panel surface of the cabinet sheet material.

[0018] Furthermore, the cleaning component includes a plurality of brushes, and the plurality of brushes are arranged on the feeding platform, and the brush ends of the brushes are arranged toward the back panel surface of the cabinet plate.

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

[0020] During use of the bending device for cabinet sheet metal production provided by the present invention, when there is a downward convex defect on the plate and it rotates, the rotation trajectory of the downward convex defect coincides with the trajectory of the circle surrounded by two symmetrically arranged spring pieces, and then when the downward convex defect collides with the first ball, the first ball moves downward under the push of the downward convex defect, driving the spring piece to undergo compression deformation synchronously, so that the second ball adjacent to the first ball moves downward. Since the elastic reset of the spring piece has a hysteresis, when the downward convex defect collides with the second ball, the collision effect on the ball will be weakened, and so on, so that the collision effect on most balls will be weakened, thereby helping to reduce the damage caused by the collision between the cabinet plate and the balls due to the deformation of the cabinet plate, and thus can extend the service life of the balls, reduce the replacement frequency, and ensure the processing efficiency of the cabinet plate.

[0021] Furthermore, by setting up an oil storage chamber, when the spring piece undergoes compression deformation, the volume of the oil storage chamber will decrease, and the lubricating oil can flow out of the oil storage chamber, which is convenient for lubricating the ball, thereby reducing the friction resistance encountered by the ball during rotation, and helping to reduce scratches, wear and other damages caused by friction between the ball and the cabinet panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a bending device for cabinet sheet metal production provided by an embodiment of the present invention;

[0023] Figure 2 for Figure 1A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 3 for Figure 1 A schematic diagram of the partially enlarged structure at point B in the middle;

[0025] Figure 4 A schematic diagram of the exploded parts of a bending device for producing sheet metal for a cabinet provided by an embodiment of the present invention;

[0026] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at point C in the middle;

[0027] Figure 6 A side structural diagram of a bending device for producing cabinet sheet metal provided by an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Schematic diagram of the mid-DD section;

[0029] Figure 8 for Figure 7 Schematic diagram of the locally enlarged structure at point E in the middle.

[0030] in:

[0031] 1. Feeding platform;

[0032] 201, guide groove; 202, pressure arm frame; 203, rotating clamping portion; 2031, clamping block; 2032, first drive motor; 2033, telescopic rod; 204, bending assembly; 2041, base; 2042, pressure frame; 2043, bending portion; 20431, upper folding knife; 20432, lower folding knife; 2044, first guide rail; 2045, first drive cylinder;

[0033] 3. Shrapnel; 301. Oil storage chamber;

[0034] 4. Mounting seat; 401. Flow channel;

[0035] 5. Ball bearing;

[0036] 6. Driving mechanism; 601. Second guide rail; 602. Lead screw; 603. Second driving motor;

[0037] 7. Cleaning component; 701. Brush;

[0038] 8. One-way damping cylinder. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] like Figures 1 to 8 As shown, the bending device for cabinet sheet metal production provided by an embodiment of the present invention is used for bending cabinet sheets, and is configured to include a feeding platform 1 and a bending mechanism; wherein, a spring piece 3 is provided on the feeding platform 1, and the spring piece 3 is an arc-shaped structure. There are multiple spring pieces 3, and the multiple spring pieces 3 are divided into two groups. The two groups of spring pieces 3 are symmetrically arranged, and the concave surfaces are opposite. The multiple spring pieces 3 in the same group are concentrically arranged and arranged along the radial direction; each spring piece 3 is provided with at least two mounting seats 4, and all the mounting seats 4 on the same spring piece 3 are arranged along the circumferential direction, and from the inside to the outside, the number of mounting seats 4 on different spring pieces 3 increases successively; each mounting seat 4 is rollingly inserted with a ball 5, and the ball 5 is configured to form a rolling fit with the cabinet sheet; the rotation axis of the cabinet sheet coincides with the center of the spring piece 3; the bending mechanism is configured to be able to bend the cabinet sheet.

[0043] Specifically in this embodiment, the cross-sectional shape of the spring piece 3 is set to be an inverted U shape, and the opening is set downward at the top of the feeding platform 1; taking the number of spring pieces 3 as an example, the ten spring pieces 3 are divided into two groups, and the five spring pieces 3 in the same group are concentrically arranged and arranged radially from the inside to the outside or from the outside to the inside; the two groups of spring pieces 3 are symmetrically arranged, and the concave surfaces are opposite, so that any two symmetrically arranged spring pieces 3 can form a circular shape, and the center of the circle of the spring piece 3 coincides with the rotation axis of the cabinet plate, ensuring that the circular shape formed by any two symmetrically arranged spring pieces 3 can coincide with the rotation trajectory of the convex defect on the plate; the mounting seat 4 is vertically arranged on the top of the spring piece 3; the ball 5 is rollingly inserted on the top of the mounting seat 4 to ensure that it can form a rolling fit with the cabinet plate.

[0044] During use, when there is a lower convex defect on the plate and it rotates, the rotation trajectory of the lower convex defect coincides with the circular shape formed by two symmetrically arranged spring pieces 3. Then, when the lower convex defect collides with the first ball 5, under the push of the lower convex defect, the first ball 5 will move downward in the vertical direction. When the first ball 5 moves, it simultaneously drives the spring piece 3 to undergo compression deformation through the mounting seat 4, so that the second ball 5 adjacent to the first ball 5 moves downward in the vertical direction at the same time; due to the hysteresis effect of the elastic reset of the spring piece 3, when the lower convex defect collides with the second ball 5, the second ball 5 has not been fully reset, so it has already generated a downward displacement in the vertical direction in advance, which is equivalent to reserving a certain buffer space, and the collision effect it receives will be significantly weakened compared to when there is no such structural design; by analogy, in the entire circumferential direction, most of the balls 5 that subsequently collide with the lower convex defect will have their respective collision effects weakened in turn due to the buffering effect of the previous ball 5 and the coordinated deformation of the spring piece 3. This helps reduce the damage caused by the collision between the cabinet plate and the ball 5 due to deformation of the cabinet plate (convex defect), thereby extending the service life of the ball 5, reducing the replacement frequency, and ensuring the processing efficiency of the cabinet plate.

[0045] In some embodiments, in order to improve the lubrication effect on the ball 5, at least two oil storage chambers 301 are provided inside each spring piece 3, and the oil storage chamber 301 and the mounting seat 4 are connected to each other. Lubricating oil is stored in each oil storage chamber 301, and the lubricating oil is configured to lubricate the ball 5.

[0046] Specifically in this embodiment, Figure 8As shown, the oil storage chamber 301 is arranged inside the top of the elastic piece 3; a flow channel 401 is provided on the mounting seat 4, and the flow channel 401 is communicated with the oil storage chamber 301 and the ball 5 at the same time. In this way, when the spring piece 3 is compressed and deformed under the action of external forces such as the gravity of the cabinet plate and the pressure generated during the processing, the spatial layout of the oil storage chamber 301 will change accordingly, and its volume will decrease accordingly; according to the principles of fluid mechanics, during this volume change process, the lubricating oil stored in the oil storage chamber 301 will flow out of the oil storage chamber 301 due to the pressure difference, and the outflowing lubricating oil can accurately and effectively act on the ball 5 through the flow channel 401, thereby achieving full lubrication of the ball 5, thereby significantly reducing the friction resistance encountered by the ball 5 during the rotation process. The smaller friction resistance makes the ball 5 rotate more smoothly, greatly reducing the risk of degradation of the material properties of the ball 5 and increased wear caused by frictional heat; on the other hand, the relative movement between the ball 5 and the cabinet plate is made more stable and smooth, which not only helps to reduce scratches, wear and other damage caused by friction between the ball 5 and the cabinet plate, but also improves the surface quality of the cabinet plate; at the same time, it can also significantly improve the positioning accuracy and movement stability of the cabinet plate during the processing.

[0047] In other embodiments, to further reduce the impact of the ball 5, the bending device configured for cabinet sheet metal production further includes a one-way damping unit, which is configured to damp the elastic return of the spring 3. Thus, when the spring 3 undergoes compressive deformation, the one-way damping unit slows the return speed of the spring 3, reducing the upward movement speed of the next ball 5 and, in turn, reducing the distance that the ball 5 moves upward. Consequently, when the lower convex defect collides with the ball 5, the ball 5 has already undergone a significant vertical downward displacement, effectively reserving a larger buffer space, further reducing the impact of the collision. Similarly, throughout the entire circumference, the majority of balls 5 that subsequently collide with the lower convex defect will have their respective impacts further reduced due to the buffering effect of the preceding ball 5 and the coordinated deformation of the spring 3.

[0048] Furthermore, the one-way damping part can be configured to include multiple one-way damping cylinders 8, which are correspondingly arranged with the mounting seat 4 and arranged between the spring piece 3 and the feeding platform 1, and the output shaft of the one-way damping cylinder 8 is arranged on the spring piece 3.

[0049] Specifically, the one-way damping cylinder 8 can be placed vertically between the spring piece 3 and the feeding platform 1 during installation. From the perspective of the mechanical conduction path, such a setting enables the one-way damping cylinder 8 to directly and efficiently bear the force generated by the spring piece 3 during the elastic reset process and convert it into a damping force; and due to the one-way characteristic of the one-way damping cylinder 8, it only plays a damping role in the reset direction of the spring piece 3, and almost no additional resistance is generated in the compressive deformation direction of the spring piece 3, thereby ensuring that the flexibility of the spring piece 3 during normal compressive work is not affected; from the perspective of installation convenience and stability, the corresponding setting of the one-way damping cylinder 8 and the mounting seat 4 makes the installation process of the entire one-way damping part simple and firm, and can be stably integrated into the existing structural system of the bending device. It can still operate reliably under long-term high-intensity production operation environment, providing stable and continuous support for the elastic reset damping control of the spring piece 3, thereby comprehensively improving the weakening effect of the collision effect on the ball 5, greatly enhancing the ability of the bending device to cope with complex working conditions such as convex defects of cabinet panels.

[0050] More specifically, the one-way damping cylinder 8 is configured to consist of a cylinder body and an output shaft, wherein the cylinder body is arranged on the top of the feeding platform 1, and the damping cylinder is filled with damping fluid; the output shaft is a T-shaped structure, and the large end is slidably inserted in the cylinder body, and forms a piston-like structure with the cylinder body, and the small end passes through the top of the cylinder body and is arranged at the bottom of the spring 3; a plurality of first holes and a plurality of second holes are opened on the end face of the large end of the output shaft, wherein the diameter of the first hole is larger than the diameter of the second hole, and a one-way valve is inserted in each first hole, and the opening direction of the one-way valve is from top to bottom, ensuring that when the spring 3 is pressed and moves downward, the output shaft moves synchronously from top to bottom, and the one-way valve is in an open state, so that the one-way damping cylinder 8 produces almost no damping to the movement of the spring 3; when the spring 3 is elastically reset, the output shaft moves synchronously from bottom to top, and the one-way valve is in a closed state, so that the one-way damping cylinder 8 produces greater damping to the movement of the spring 3.

[0051] In other embodiments, the bending mechanism is configured to include a guide groove 201, a pressure arm frame 202, a rotating clamping portion 203 and a bending assembly 204, the guide groove 201 is arranged on the feeding platform 1; two groups of spring pieces 3 are symmetrically arranged on both sides of the guide groove 201; the pressure arm frame 202 is inserted into the guide groove 201 and can slide along the guide groove 201; the rotating clamping portion 203 is arranged on the pressure arm frame 202 and is configured to clamp and rotate the cabinet panel; the bending assembly 204 is configured to bend the cabinet panel in a vertical direction.

[0052] Specifically in this embodiment, the guide groove 201 is set as a strip structure, extending in the front-to-back direction, and is horizontally arranged on the top of the feeding platform 1; both ends of the spring piece 3 coincide with the guide groove 201, ensuring that the balls 5 can be distributed circumferentially as much as possible; the wall pressure frame is set as a U-shaped structure, and the opening is set horizontally toward the rear.

[0053] During use, the cabinet sheet is first placed in the area where the spring piece 3 is located on the feeding platform 1, and then the cabinet sheet is clamped by rotating the clamping part 203, and then the cabinet sheet is driven to rotate by rotating the clamping part 203, so that the first edge of the cabinet sheet to be bent is in a suitable position; then the pressure arm 202 is driven to slide along the guide groove 201, and when the pressure arm 202 moves, the cabinet sheet is driven to move to a suitable position by rotating the clamping part 203; then the first edge of the cabinet sheet to be bent is bent in the vertical direction by the bending component 204.

[0054] After the first side of the cabinet sheet to be bent is bent, the pressure arm 202 is driven to slide along the guide groove 201. When the pressure arm 202 moves, it drives the cabinet sheet to move to the area where the spring piece 3 is located on the feeding platform 1 by rotating the clamping part 203, and then drives the cabinet sheet to rotate by rotating the clamping part 203, so that the second side of the cabinet sheet to be bent is in a suitable position; then the pressure arm 202 is driven to slide along the guide groove 201. When the pressure arm 202 moves, it drives the cabinet sheet to move to a suitable position by rotating the clamping part 203; then the second side of the cabinet sheet to be bent is bent in the vertical direction by the bending component 204.

[0055] Repeat the above process until all the edges to be bent on the cabinet plate are bent.

[0056] Furthermore, the rotating clamping portion 203 is configured to include two clamping blocks 2031, and the two clamping blocks 2031 are arranged in the vertical direction. One of the clamping blocks 2031 is arranged above the feeding platform 1 and can move in the vertical direction and rotate around the first axis. The other clamping block 2031 is inserted in the guide groove 201 and can rotate around the first axis; the first axis extends in the vertical direction and coincides with the center of the spring piece 3.

[0057] Specifically, one of the clamping blocks 2031 is set on the rear end side wall surface of the cantilever located above the pressure arm frame 202, and the clamping surface of the clamping block 2031 is set downward to ensure that it can press on the top of the cabinet panel from top to bottom; the other clamping block 2031 is set on the top of the cantilever located below the pressure arm frame 202, and the clamping surface of the clamping block 2031 is set upward to ensure that it can support the bottom of the cabinet panel upward.

[0058] In order to facilitate the provision of a driving force for the clamping block 2031 provided on the upper cantilever of the pressure arm frame 202 so as to be able to move in the vertical direction and rotate around the first axis, the rotating clamping part 203 is configured to also include a first driving motor 2032 and a telescopic rod 2033. The first driving motor 2032 is provided on the rear end side wall surface of the cantilever located above the pressure arm frame 202, and the motor shaft of the first driving motor 2032 is provided downward in the vertical direction; the telescopic rod 2033 extends in the vertical direction and can be telescopic. The fixed end of the telescopic rod 2033 is provided on the motor shaft of the first driving motor 2032, and the movable end is provided on the clamping block 2031; the first axis coincides with the axis of the motor shaft of the first driving motor 2032, and the center of the circle of the spring piece 3 coincides with the first axis, ensuring that the rotation axis of the cabinet plate coincides with the center of the circle of the spring piece 3.

[0059] During use, first place the cabinet panel on the area where the spring piece 3 is located on the feeding platform 1, then extend the telescopic rod 2033, the telescopic rod 2033 drives the clamping block 2031 located above to move downward, and then the cabinet panel is clamped by the clamping block 2031 located below; then start the first drive motor 2032, the first drive motor 2032 drives the telescopic rod 2033 to rotate, and the telescopic rod 2033 drives the cabinet panel to rotate through the clamping of the two clamping blocks 2031, so that the edge of the cabinet panel to be bent is in a suitable position.

[0060] Optionally, the telescopic rod 2033 can be extended or shortened by hydraulic means; the telescopic rod 2033 can also be extended or shortened by pneumatic means; or the telescopic rod 2033 can also be extended or shortened by electric means.

[0061] Optionally, an elastic friction portion is provided on the clamping surface of the clamping block 2031, and the elastic friction portion is configured to be made of rubber material, thereby increasing the friction force between the clamping block 2031 and the cabinet panel by increasing the friction coefficient, thereby improving the stability when clamping the cabinet panel.

[0062] Optionally, a suction cup is provided on the clamping surface of the clamping block 2031 to ensure that when clamping the cabinet panel, atmospheric pressure can be used to generate additional adsorption force, thereby further enhancing the reliability of clamping; in addition, it can also avoid hard clamping of the cabinet panel and reduce damage to the surface of the cabinet panel.

[0063] Furthermore, the bending assembly 204 is configured to include a base 2041, a pressure frame 2042 and a bending portion 2043, and the base 2041 and the feeding platform 1 are arranged close to each other; the pressure frame 2042 is arranged on the base 2041, and can slide in the vertical direction, and is configured to press the cabinet panel on the base 2041; the bending portion 2043 is arranged on the base 2041, and can slide in the vertical direction, and is configured to form a stop fit with the cabinet panel.

[0064] Specifically, if Figure 1 As shown, the base 2041 is located on the rear side of the feeding platform 1; the pressure frame 2042 is arranged on the front side wall of the base 2041; in order to provide the driving force for the pressure frame 2042 to slide in the vertical direction, the bending assembly 204 is configured to also include a first guide rail 2044 and a first drive cylinder 2045, the first guide rail 2044 extends in the up and down directions, and is arranged on the front side wall of the base 2041; the pressure frame 2042 is slidably sleeved on the first guide rail 2044; the first drive cylinder 2045 is arranged on the top of the base 2041, and the output shaft is downward and fixed on the pressure frame 2042, ensuring that it can drive the pressure frame 2042 to slide along the first guide rail 2044.

[0065] Optionally, the number of the first guide rails 2044 and the first drive cylinder 2045 can be set to two, and the two first guide rails 2044 are arranged at intervals along the left and right directions; the two first drive cylinders 2045 are arranged at intervals along the left and right directions, and the output shaft is also set on the pressure frame 2042 to ensure that the pressure frame 2042 can be driven to slide along the first guide rails 2044 more stably.

[0066] Optionally, the first driving cylinder 2045 can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0067] More specifically, the bending portion 2043 is provided on the front side wall of the base 2041, and is located below the pressing frame 2042 and at the rear side of the pressing frame 2042, to ensure that the bending portion 2043 and the pressing frame 2042 do not interfere with each other during movement. The bending portion 2043 also has an upper folding knife 20431 and a lower folding knife 20432. The upper folding knife 20431 and the lower folding knife 20432 are both provided on the front side wall of the bending portion 2043 and are spaced apart in the up and down directions. The lower folding knife 20432 is located below the upper folding knife 20431. The upper folding knife 20431 is provided on the front side wall of the bending portion 2043. The upper folding knife 20431 and the lower folding knife 20432 are both configured as strip structures and extend in the left and right directions, wherein the upper folding knife 20431 is configured to bend the cabinet panel from top to bottom, and the lower folding knife 20432 is configured to bend the cabinet panel from bottom to top; in order to facilitate providing the driving force for the bending part 2043 to slide in the vertical direction, the bending assembly 204 is configured to also include a second driving cylinder, which is arranged on the base 2041, and the output shaft is upward and fixedly arranged on the bending part 2043, ensuring that the bending part 2043 can be driven to move in the vertical direction.

[0068] Optionally, the second driving cylinder can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0069] During use, when the cabinet plate rotates until the edge to be bent extends in the left and right directions, the pressure arm 202 is driven to slide along the guide groove 201 toward the direction close to the base 2041. When the pressure arm 202 moves, it simultaneously drives the cabinet plate to move until the edge to be bent is above the lower folding knife 20432; then the first drive cylinder 2045 is started, and the output shaft of the first drive cylinder 2045 is extended, synchronously driving the pressure frame 2042 to move downward until the pressure frame 2042 fixes the cabinet plate on the base 2041; then the second drive cylinder is started, and the output shaft of the second drive cylinder is extended, synchronously driving the bending part 2043 to move upward, and the edge to be bent is bent upward through the lower folding knife 20432.

[0070] Furthermore, the bending device for cabinet sheet metal production is configured to further include a driving mechanism 6 , which is configured to provide a driving force for the pressure arm frame 202 to slide along the guide groove 201 .

[0071] Specifically, the driving mechanism 6 can be configured to include a second guide rail 601, a lead screw 602, and a second driving motor 603, wherein the second guide rail 601 is inserted in parallel in the guide groove 201; Figure 5 As shown, the lead screw 602 is arranged in parallel at the top of the second guide rail 601 and can rotate around its own axis; the pressure arm frame 202 is arranged at the top of the second guide rail 601 and forms a sliding fit with the second guide rail 601. The pressure arm frame 202 is simultaneously sleeved on the lead screw 602 and forms a transmission fit with the lead screw 602 to ensure that when the lead screw 602 rotates, the pressure arm frame 202 can slide along the guide groove 201 under the guidance of the second guide rail 601; the second drive motor 603 is arranged at the top of the second guide rail 601, and the motor shaft of the second drive motor 603 is coaxial with the lead screw 602 and fixedly connected to ensure that the lead screw 602 can be driven to rotate.

[0072] During use, the second drive motor 603 is started, and the second drive motor 603 drives the lead screw 602 to rotate. When the lead screw 602 rotates, it drives the pressure arm frame 202 to slide along the guide groove 201 under the guidance of the second guide rail 601.

[0073] In other embodiments, in the processing flow of the cabinet body panels, the back panel surface is very likely to be contaminated by various impurities such as metal debris, dust particles, oil stains, etc. during the early material handling, storage, trimming, punching and other processes; the presence of these impurities will not only affect the surface quality of the cabinet body panels during the bending process, but may also interfere with the fit and positioning accuracy of the cabinet body panels and the bending device, thereby adversely affecting the quality of the final cabinet product; to solve this problem, the bending device set for cabinet sheet metal production also includes a cleaning component 7, and the cleaning component 7 is configured to be able to clean the back panel surface of the cabinet body panel.

[0074] Furthermore, the cleaning assembly 7 is configured to include a plurality of brushes 701, which are arranged on the feeding platform 1, with the brush ends of the brushes 701 facing the back surface of the cabinet panel. Thus, when the cabinet panel moves on the feeding platform 1, the back surface of the cabinet panel will continuously come into contact with the brush ends of the brushes 701. As the cabinet panel moves, the brushes 701, with their soft and elastic bristles, can effectively scrape off impurities such as metal debris and dust particles attached to the back surface of the cabinet panel. Furthermore, for sticky impurities such as oil stains, the continuous brushing of the brushes 701 can destroy their attachment structure.

[0075] Optionally, a vacuum or air blowing device that may be provided later can achieve more thorough cleaning.

[0076] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. A bending device for cabinet sheet metal production, characterized in that: The bending device for cabinet sheet metal production includes a feeding platform and a bending mechanism; Wherein, the feeding platform is provided with a spring piece, the spring piece is an arc-shaped structure, there are multiple spring pieces, and the multiple spring pieces are divided into two groups. The two groups of spring pieces are symmetrically arranged, and the concave surfaces are opposite to each other. The multiple spring pieces in the same group are concentrically arranged and arranged in the radial direction; each of the spring pieces is provided with at least two mounting seats, all the mounting seats on the same spring piece are arranged along the circumferential direction, and the number of the mounting seats on different spring pieces increases from the inside to the outside; each mounting seat is rollingly inserted with a ball, and the ball is configured to form a rolling fit with the cabinet plate with a convex defect; the rotation axis of the cabinet plate coincides with the center of the circle of the spring piece; The bending mechanism is configured to be able to bend the cabinet plate.

2. The bending device for cabinet sheet metal production according to claim 1 is characterized in that: At least two oil storage chambers are provided inside each of the elastic pieces. The oil storage chambers are connected to the mounting seats. Lubricating oil is stored in each of the oil storage chambers. The lubricating oil is configured to lubricate the balls.

3. The bending device for cabinet sheet metal production according to claim 1 is characterized in that: The bending device for cabinet sheet metal production further includes a one-way damping portion, which is configured to generate damping for the elastic resetting of the spring.

4. The bending device for cabinet sheet metal production according to claim 3 is characterized in that: The one-way damping part includes a plurality of one-way damping cylinders. The one-way damping cylinders and the mounting seats are arranged correspondingly and between the spring sheet and the feeding platform. The output shafts of the one-way damping cylinders are arranged on the spring sheet.

5. The bending device for cabinet sheet metal production according to claim 1 is characterized in that: The bending mechanism includes a guide groove, a pressure arm frame, a rotating clamping part and a bending assembly, the guide groove is arranged on the feeding platform; the two groups of spring sheets are symmetrically arranged on both sides of the guide groove; the pressure arm frame is inserted into the guide groove and can slide along the guide groove; the rotating clamping part is arranged on the pressure arm frame and is configured to clamp and rotate the cabinet plate; the bending assembly is configured to bend the cabinet plate in a vertical direction.

6. The bending device for cabinet sheet metal production according to claim 5, characterized in that: The rotating clamping part includes two clamping blocks, which are arranged in the vertical direction. One of the clamping blocks is arranged above the feeding platform and can move in the vertical direction and rotate around a first axis. The other clamping block is inserted in the guide groove and can rotate around the first axis. The first axis extends in the vertical direction and coincides with the center of the spring.

7. The bending device for cabinet sheet metal production according to claim 5, characterized in that: The bending assembly includes a base, a pressing frame and a bending portion, and the base and the feeding platform are arranged closely together; the pressing frame is arranged on the base, can slide in the vertical direction, and is configured to press the cabinet plate on the base; the bending portion is arranged on the base, can slide in the vertical direction, and is configured to form a stop fit with the cabinet plate.

8. The bending device for cabinet sheet metal production according to claim 5, characterized in that: The bending device for cabinet sheet metal production further includes a driving mechanism, which is configured to provide a driving force for the pressure arm frame to slide along the guide groove.

9. The bending device for cabinet sheet metal production according to claim 1, characterized in that: The bending device for cabinet sheet metal production further includes a cleaning component, which is configured to clean the back surface of the cabinet sheet material.

10. The bending device for cabinet sheet metal production according to claim 9, characterized in that: The cleaning component includes a plurality of brushes, which are arranged on the feeding platform, and the brush ends of the brushes are arranged toward the back panel surface of the cabinet plate.

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