Sheet metal bending processing feeding and discharging integrated equipment and operation method thereof

Abstract

The application discloses a feeding and discharging integrated device for sheet metal bending processing and an operating method thereof, and relates to the field of sheet metal processing equipment.The device effectively solves the problems of obvious deficiencies in the integration degree, differentiation centering capacity, small-size plate adsorption reliability, synchronous discharging efficiency and continuous operation capacity of the existing device.The technical solution comprises the following steps: the feeding and discharging integrated device for sheet metal bending processing is provided with a sliding table alignment ruler centering mechanism, which can control the lifting and walking of each positioning alignment ruler according to the specification differentiation of the plate, greatly improving the centering precision and adaptability when processing plates of different sizes;the suction cup rotating mechanism can drive the plate adsorption mechanism to rotate by 180°, and the plate adsorption mechanism can switch the adsorption mode on the basis of vacuum adsorption, adapt to the bending processing of extremely small-size sheet metal parts, avoid plate loosening, falling or displacement, and ensure the bending stability and forming quality.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing equipment technology, and in particular to an integrated loading and unloading equipment for sheet metal bending processing and its operating method. Background Technology

[0002] Sheet metal bending is one of the core processes in sheet metal processing. The degree of automation, positioning accuracy, and cycle efficiency of its loading and unloading process directly affect the final product's forming quality and production cost.

[0003] As the manufacturing industry continues to demand higher processing precision, more flexible production capabilities, and higher equipment utilization rates, existing sheet metal bending equipment typically distributes its loading, centering, feeding, bending, and unloading functions across multiple independent workstations. These modules are connected via long conveyor lines or manual transfer. This decentralized layout results in a large overall machine bed length, occupying significant production space. Furthermore, most existing centering and positioning mechanisms use a fixed number of fixed-position straightedges, or can only achieve simple synchronous opening and closing actions, failing to flexibly switch the working states of each straightedge according to sheet metal specifications and processing modes. In actual production, manual adjustment of the straightedge positions or tooling changes are often required, which is not only inefficient but also makes it difficult to guarantee the consistency and accuracy of centering for multiple sheet metal specifications.

[0004] Most bending units operate with a single station and a single set of bending cutters, processing only one workpiece at a time, resulting in long cycle times for batch production. A few multi-station bending machines have poor linkage between bending units, making synchronous and coordinated bending impossible. During the bending process, the feeding mechanism must wait for bending and unloading to be completed before it can perform the next feeding, resulting in a significant amount of waiting time. For small-sized sheet metal parts, the suction cup clamping and feeding mechanism cannot hold them continuously, making the sheet metal prone to shifting and falling off during the bending process.

[0005] In summary, existing sheet metal bending processing equipment has significant shortcomings in terms of integration, differentiated alignment capability, reliability of small-sized sheet metal adsorption, synchronous unloading efficiency, and continuous operation capability. There is an urgent need for an integrated loading and unloading equipment that is compact, adaptable, stable in operation, and capable of efficient and continuous processing of sheet metal of various specifications. Summary of the Invention

[0006] In view of the above situation, the present invention provides an integrated loading and unloading equipment for sheet metal bending and its operation method. This device solves the problems of existing loading and unloading equipment for sheet metal bending in terms of integration level, differentiated centering capability, reliability of small-sized sheet metal adsorption, synchronous unloading efficiency and continuous operation capability.

[0007] An integrated loading and unloading device for sheet metal bending processing includes:

[0008] The mounting base has a first support frame fixedly connected to the middle of its upper surface and a second support frame fixedly connected to both sides of the mounting base.

[0009] A linear motor module is located on the top of the first support frame near the mounting base, and its movable end is equipped with a sliding table ruler centering mechanism.

[0010] A transverse slide rail is mounted on the upper surface of the mounting base and a transverse moving mechanism is connected to it via a transmission mechanism.

[0011] A suction cup lifting mechanism is mounted on a lateral moving mechanism, and the lateral moving mechanism is equipped with a lubrication assembly for lubricating the transmission parts of the lateral moving mechanism.

[0012] The suction cup rotation mechanism is located at the movable end of the suction cup lifting mechanism and has a plate adsorption mechanism on its top.

[0013] A horizontal adjustment mechanism is set on the top of the second support frame on both sides, and a material feeding and translation mechanism is provided on its upper surface.

[0014] The material feeding suction cup mechanism is located at the movable end of the material feeding translation mechanism and can move horizontally.

[0015] The sliding table alignment mechanism consists of multiple sets of fixed seats, lifting seats, lifting cylinders and positioning rulers. The lifting seats are vertically slidably connected to the side of the fixed seats and the positioning rulers are fixedly connected to the top of the lifting seats. The fixed cylinder body of the lifting cylinder is vertically fixedly installed on the side of the fixed seats and its movable end is fixedly connected to the positioning rulers.

[0016] Preferably, the lateral moving mechanism includes a lateral movable plate, a first driving member, and a helical gear. The lateral movable plate is laterally slidably connected above the lateral slide rail, and the first driving member is fixedly installed on the upper surface of the lateral movable plate. The helical gear is connected to the output end of the first driving member via a spline and is located below the lateral movable plate. A rack is fixedly installed on the upper surface of the mounting base at the part corresponding to the helical gear, and the helical gear and the rack mesh with each other.

[0017] Preferably, the suction cup lifting mechanism includes a fixed bracket, a second driving component, a lead screw, a lead screw slider, and a lifting frame. The fixed bracket is fixedly installed on the upper surface of the horizontal movable plate, and the lead screw is vertically rotatably connected inside the fixed bracket. The second driving component is fixedly installed on the upper surface of the fixed bracket, and its output end is connected to the lead screw via a spline. The lifting frame is fixedly connected to the lead screw slider, and the lead screw slider is drivenly connected to the outside of the lead screw. The lifting frame is vertically slidably connected to the side of the fixed bracket away from the first driving component.

[0018] Preferably, the lubrication assembly includes a felt helical gear and a rotary joint. The rotary joint is rotatably connected to the middle of the upper surface of the transverse movable plate and its bottom end is fixedly connected to the felt helical gear. An oil outlet is provided at the top of the outer tooth slot of the felt helical gear and the rotary joint communicates with the oil outlet. The felt helical gear is located below the transverse movable plate and meshes with a rack. The inlet end of the rotary joint is connected to an external oil supply pipe.

[0019] Preferably, the suction cup rotation mechanism includes a third driving component, a rotating rod, and a top bracket. The third driving component is fixedly installed on the lower surface of the fixed bracket, and the rotating rod is connected to the output end of the third driving component via a spline. The rotating rod is vertically inserted through the upper surface of the fixed bracket and has a hollow internal structure. The top bracket is fixedly connected to the top of the rotating rod.

[0020] Preferably, the plate adsorption mechanism includes a suction cup frame, a first vacuum suction cup, a mounting block, and an electromagnet. The suction cup frame is built into the top bracket and a plurality of first vacuum suction cups are fixedly mounted on its top. The plurality of first vacuum suction cups are all equidistantly arranged on the upper surface of the top bracket. The mounting block is fixedly mounted on the side of the top bracket and the electromagnet is fixedly mounted on the side of the mounting block.

[0021] Preferably, the horizontal adjustment mechanism includes a horizontal slide, a manual clamp, and a support truss. There are two horizontal slides, and the two horizontal slides are slidably connected to the tops of two second support frames. The support truss is horizontally fixedly connected to the tops of the two horizontal slides. The manual clamp is installed on one of the horizontal slides and can fix the horizontal slide.

[0022] Preferably, the material feeding and translation mechanism includes a fourth driving member, pulleys, a timing belt, and a locking block. There are two pulleys, and the two pulleys are rotatably connected to both sides of the upper surface of the support truss. The movable end of the fourth driving member is connected to one of the pulleys. The timing belt is connected to the outside of the two pulleys, and the locking block is locked and fixed to the side of the timing belt.

[0023] Preferably, the unloading suction cup mechanism includes a sliding mounting frame, a telescopic cylinder, a suction cup fixing plate, and a second vacuum suction cup. The sliding mounting frame is fixedly connected to the side of the locking block and slidably connected to the side of the supporting truss. The fixed cylinder body of the telescopic cylinder is fixedly installed on the side of the sliding mounting frame, and the suction cup fixing plate is fixedly connected to the bottom of the movable rod of the telescopic cylinder. A horizontally adjustable second vacuum suction cup is installed at each of the four corners of the upper surface of the suction cup fixing plate, and each second vacuum suction cup is connected to an external vacuum pipeline. The telescopic cylinder is at least three in number and is fixedly installed at equal intervals on the side of the sliding mounting frame.

[0024] An operating method for an integrated loading and unloading equipment for sheet metal bending includes the following steps:

[0025] S1. Install the mounting base at the position corresponding to the bending part of the bending machine. After the equipment is started, place the sheet metal to be bent in the loading area on one side of the mounting base; the linear motor module drives the sliding table ruler centering mechanism to move to the side of the sheet metal. The multiple sets of lifting cylinders in the sliding table ruler centering mechanism control the lifting and lowering of the corresponding positioning ruler according to the sheet metal specifications:

[0026] When processing the large plate, the four sets of lifting cylinders in the middle retract to hide the corresponding positioning rulers and move them to the middle of the linear motor module. Then, the two positioning rulers on both sides are raised, and the two rulers move synchronously to complete the precise centering of the large plate on both sides.

[0027] When processing the middle plate, the movable rods of the two lifting cylinders on the left and right retract to hide the corresponding positioning rulers, and move the two positioning rulers on the left and right to the sides of the linear motor module respectively. Only the two positioning rulers in the middle move to the sides of the plate and then rise. Then, the two sets of positioning rulers move closer to each other synchronously to achieve the centering of the plate.

[0028] When processing the three small boards simultaneously, multiple sets of positioning rulers move independently in separate zones, corresponding to both sides of the three small boards and rising up, so that the positioning rulers on both sides of each small board are close to each other, thereby completing the independent centering and positioning of the three small boards simultaneously.

[0029] S2. The suction cup lifting mechanism drives the board adsorption mechanism to move upward, and the vacuum adsorption precisely centered board is used for adsorption; the horizontal moving mechanism moves forward along the horizontal slide rail, and smoothly sends the board into the bending host; during the movement, the lubrication component lubricates the transmission parts of the horizontal moving mechanism.

[0030] S3. When processing standard-sized large, medium, and small sheets, the bending machine performs the bending action, and the sheet metal adsorption mechanism assists in clamping and completing the sheet metal bending. The suction cup rotation mechanism can also rotate the sheet metal, making it easy to bend all edges of the sheet metal. When processing extremely small sheet metal parts, the bending machine's pressure knife first clamps the sheet metal for positioning. The lateral movement mechanism drives the suction cup lifting mechanism, suction cup rotation mechanism, and sheet metal adsorption mechanism to retract and exit the bending area as a whole. The suction cup rotation mechanism drives the sheet metal adsorption mechanism to rotate 180°, and the sheet metal adsorption mechanism switches adsorption modes to firmly adsorb the sheet metal, continuously cooperating with the bending action to prevent small sheets from loosening, falling off, or shifting.

[0031] S4. After bending, the lateral moving mechanism drives the suction cup lifting mechanism and the sheet metal adsorption mechanism to transfer all the formed sheet metal to the unloading area on the discharge side; the unloading translation mechanism drives the unloading suction cup mechanism to move horizontally above the formed sheet metal, the unloading suction cup mechanism descends and simultaneously adsorbs multiple finished workpieces, and then the unloading translation mechanism drives multiple finished workpieces to the next process, thereby completing the synchronous unloading in one go.

[0032] S5. While the bending machine is performing bending processing, the feeding side is re-placing and feeding the next batch of sheet metal. The sliding table ruler centering mechanism completes the centering and positioning in advance. Each process operates in parallel and alternately without waiting intervals, realizing uninterrupted, high-precision, and high-efficiency continuous bending production of sheet metal.

[0033] The beneficial effects of the above technical solution are as follows:

[0034] (1) The integrated loading and unloading equipment for sheet metal bending processing can control the lifting and movement of each positioning ruler according to the differences in sheet specifications by setting a sliding table ruler centering mechanism. This facilitates precise centering of the outer double rulers when processing large plates, and centering of the middle double rulers when processing medium plates. When processing three small plates simultaneously, multiple sets of rulers move independently in different areas to complete the independent centering of each small plate, greatly improving the centering accuracy and adaptability. The suction cup rotation mechanism can drive the sheet metal adsorption mechanism to rotate 180°. The sheet metal adsorption mechanism can switch adsorption modes on the basis of vacuum adsorption to adapt to the bending processing of extremely small sheet metal parts, avoid the sheet metal from loosening, falling off or shifting, and ensure bending stability and forming quality.

[0035] (2) The unloading translation mechanism drives the unloading suction cup mechanism to move horizontally. The unloading suction cup mechanism can adsorb multiple finished workpieces at one time and complete synchronous unloading, which greatly shortens the unloading cycle time. While the bending host performs bending processing, the sliding table ruler centering mechanism on the loading side can complete the centering and positioning of the next batch of plates in parallel. Each process is carried out in parallel and interleaved without waiting interval, realizing uninterrupted, high-precision and high-efficiency continuous bending production of sheet metal. The present invention integrates the loading, centering, feeding, bending coordination and unloading mechanisms into one by installing the base. It adopts an integrated layout, has a compact structure, and the movement of each mechanism does not interfere with each other, which significantly reduces the floor space. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a front view structural diagram of the present invention;

[0038] Figure 3 This is a side view of the structure of the present invention;

[0039] Figure 4 This is a top view of the structure of the present invention;

[0040] Figure 5 This is a schematic diagram showing the connection state of the linear motor module and the slide table ruler centering mechanism of the present invention;

[0041] Figure 6 This is a schematic diagram of the alignment mechanism of the slide table according to the present invention;

[0042] Figure 7 This is a schematic diagram showing the connection status of the horizontal adjustment mechanism, the material feeding translation mechanism, and the material feeding suction cup mechanism of the present invention;

[0043] Figure 8 For the present invention Figure 7 A diagram showing the view from below;

[0044] Figure 9 This is a schematic diagram of the lateral moving mechanism and its overall structure above it according to the present invention;

[0045] Figure 10 For the present invention Figure 9 A diagram showing the view from below;

[0046] Figure 11 For the present invention Figure 9 A schematic diagram of the side cross-sectional structure;

[0047] Figure 12 This is a schematic diagram of the lubrication assembly of the present invention;

[0048] Figure 13 This is a schematic diagram of the oil outlet flow channel of the present invention.

[0049] In the diagram: 1. Mounting base; 2. First support frame; 3. Second support frame; 4. Linear motor module; 5. Slide table alignment mechanism; 501. Fixed seat; 502. Lifting seat; 503. Lifting cylinder; 504. Positioning ruler; 6. Transverse slide rail; 7. Transverse movement mechanism; 701. Transverse movable plate; 702. First driving component; 703. Helical gear; 8. Suction cup lifting mechanism; 801. Fixed bracket; 802. Second driving component; 803. Lead screw; 804. Lead screw slider; 805. Lifting frame; 9. Lubrication assembly; 901. Felt helical gear; 902. Rotary joint; 10. Suction cup rotation mechanism; 1001. Third driving component; 1002. Rotating rod; 10 03. Top support; 11. Sheet adsorption mechanism; 1101. Suction cup frame; 1102. First vacuum suction cup; 1103. Mounting block; 1104. Electromagnet; 12. Horizontal adjustment mechanism; 1201. Horizontal slide; 1202. Manual clamp; 1203. Support truss; 13. Unloading translation mechanism; 1301. Fourth driving component; 1302. Pulley; 1303. Synchronous belt; 1304. Locking block; 14. Unloading suction cup mechanism; 1401. Sliding mounting frame; 1402. Telescopic cylinder; 1403. Suction cup fixing plate; 1404. Second vacuum suction cup; 15. Rack and pinion; 16. Vacuuming mechanism; 1601. Vacuum generator; 1602. Spring air tube. Detailed Implementation

[0050] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 12 As will be clearly shown in the detailed description of the embodiments, all structural contents mentioned in the following embodiments are based on the accompanying drawings.

[0051] This embodiment provides an integrated loading and unloading device for sheet metal bending and its operation method, as shown in the attached figure. Figure 1-12 As shown, it includes:

[0052] Mounting base 1 has a first support frame 2 fixedly connected to the middle of its upper surface, and second support frames 3 fixedly connected to both sides of the mounting base 1. The mounting base 1 serves as the load-bearing foundation of the entire equipment, and is used to integrate the feeding centering mechanism, the feeding bending coordination mechanism, and the unloading mechanism onto the same base, thereby forming a compact integrated layout, reducing the equipment's footprint, and ensuring the relative positional accuracy and motion coordination between the various mechanisms. The first support frame 2 is used to support the linear motor module 4, so that the slide table ruler centering mechanism 5 is at a suitable height above the plate feeding area, facilitating centering operations.

[0053] The linear motor module 4 is located on the top of the first support frame 2 near the mounting base 1. The linear motor module 4 is a known technology and will not be described in detail here. The linear motor module 4 has multiple independently movable structures. The slide table ruler centering mechanism 5 is fixedly installed on the movable structure and can be driven by the linear motor module 4 to move laterally back and forth.

[0054] The movable end of the linear motor module 4 is equipped with a slide table straightedge centering mechanism 5; for details, see attached. Figure 5 and 6 As shown, the sliding table alignment mechanism 5 consists of multiple sets of fixed seats 501, lifting seats 502, lifting cylinders 503 and positioning rulers 504. The lifting seats 502 are vertically slidably connected to the side of the fixed seats 501 and the positioning rulers 504 are fixedly connected to the top of the lifting seats 502. The fixed cylinder body of the lifting cylinder 503 is vertically fixedly installed on the side of the fixed seats 501 and its movable end is fixedly connected to the positioning rulers 504.

[0055] The side length of large plates ranges from 1001mm to 2000mm, medium plates from 501mm to 1000mm, small plates from 151mm to 500mm, and the side length of extremely small sheet metal parts from 100mm to 150mm; the corresponding plate positioning mode is selected according to the size of the plate to be processed.

[0056] Among them, the linear motor module 4 adopts a multi-moving substructure, and each moving structure can independently control the displacement, so that each group of positioning rulers 504 in the sliding table ruler centering mechanism 5 can move to different lateral positions according to the specifications of the board and the processing mode, realizing multiple centering modes such as double-sided centering of large boards, centering of medium boards, and independent partitioning of multiple small boards, which greatly improves the flexibility and adaptability of the equipment. In the sliding table ruler centering mechanism 5, the fixed seat 501 provides vertical guidance for the lifting seat 502, and the lifting cylinder 503 drives the positioning rulers 504 to rise and fall. When the positioning rulers 504 are raised, they can contact the side of the board to achieve positioning. When the positioning rulers 504 are retracted and hidden, they make room to avoid interference with the board or other mechanisms, thus providing a structural basis for differentiated centering of boards of different specifications.

[0057] A transverse slide rail 6 is mounted on the upper surface of the mounting base 1, and a transverse moving mechanism 7 is drivenly connected above it; specifically, as shown in the attached diagram. Figure 9 and 10As shown, the lateral moving mechanism 7 includes a lateral movable plate 701, a first driving member 702, and a helical gear 703. Sleeves are fixedly connected to the lower surface of the lateral movable plate 701 at the vertically corresponding positions of the lateral slide rail 6. The lateral movable plate 701 is laterally slidably connected above the lateral slide rail 6 via the sleeves, and the first driving member 702 is fixedly installed on the upper surface of the lateral movable plate 701. The helical gear 703 is connected via a spline to the output end of the first driving member 702 and is located below the lateral movable plate 701. The mounting base 1... A rack 15 is fixedly installed on the upper surface corresponding to the helical gear 703, and the helical gear 703 and the rack 15 mesh with each other; the function of the transverse moving mechanism 7 is to convert the rotational motion of the first driving member 702 into the linear motion of the transverse movable plate 701 along the transverse slide rail 6 through the meshing of the helical gear 703 and the rack 15, thereby driving the suction cup lifting mechanism 8, the suction cup rotating mechanism 10 and the plate adsorption mechanism 11 installed thereon to move as a whole, and complete the conveying of the plate from the centering area to the bending host and from the bending host to the unloading area.

[0058] The suction cup lifting mechanism 8 is mounted on the horizontal moving mechanism 7, as detailed in the attached diagram. Figure 9 and 11 As shown, the suction cup lifting mechanism 8 includes a fixed bracket 801, a second driving member 802, a lead screw 803, a lead screw slider 804, and a lifting frame 805. The fixed bracket 801 is fixedly installed on the upper surface of the horizontal movable plate 701, and the lead screw 803 is vertically rotatably connected within the fixed bracket 801. The second driving member 802 is fixedly installed on the upper surface of the fixed bracket 801, and its output end is connected to the lead screw 803 via a spline. The lifting frame 805 is fixedly connected to the lead screw slider 804, and the lead screw slider 804 is drively connected to the lead screw 803. 3. The lifting frame 805 is vertically slidably connected to the fixed bracket 801 on the side away from the first driving member 702. A sliding member is provided between the lifting frame 805 and the fixed bracket 801. The sliding member includes a slide rail and a slide sleeve. The slide rail is vertically fixedly installed on the side of the fixed bracket 801 and the slide sleeve is fixedly installed on the side of the lifting frame 805. The slide sleeve on the lifting frame 805 is slidably connected to the slide rail on the side of the fixed bracket 801. It can guide, limit and support the lifting frame 805 to ensure that the lifting frame 805 rises and falls smoothly.

[0059] The second driving component 802 drives the lead screw 803 to rotate, causing the lead screw slider 804 and the lifting frame 805 to move up and down precisely vertically. This, in turn, drives the suction cup rotating mechanism 10 and the plate adsorption mechanism 11 to move up and down, thereby realizing the adsorption, picking up and placing of the plate. The lead screw drive has the advantages of good self-locking and high positioning accuracy, which can ensure that the plate maintains a stable height position during bending. The sliding component further enhances the motion rigidity and guiding accuracy of the lifting frame 805, avoiding shaking during lifting due to load offset.

[0060] The lateral moving mechanism 7 is equipped with a lubrication assembly 9 for lubricating the transmission parts of the lateral moving mechanism 7; specifically, as shown in the attached figure. Figure 12 and 13 As shown, the lubrication assembly 9 includes a felt helical gear 901 and a rotary joint 902. The rotary joint 902 is rotatably connected to the middle of the upper surface of the transverse movable plate 701, and its bottom end is fixedly connected to the felt helical gear 901. An oil outlet is provided at the top of the outer tooth slot of the felt helical gear 901, and the rotary joint 902 communicates with the oil outlet. The felt helical gear 901 is located below the transverse movable plate 701 and meshes with the rack 15. The inlet end of the rotary joint 902 is connected to an external oil supply pipe. During the movement of the transverse moving mechanism 7... In the process, the felt helical gear 901 rolls synchronously along the rack 15 with the transverse movable plate 701. External lubricating oil is continuously introduced into the interior of the felt helical gear 901 through the rotary joint 902 and seeps out from the oil outlet at the top of its tooth gap, evenly coating the tooth surface of the rack 15. This achieves automatic lubrication of the meshing part between the helical gear 703 and the rack 15, which can effectively reduce the friction loss and operating noise of the transmission parts, avoid the decrease in accuracy caused by untimely manual lubrication, extend the service life of the equipment, and ensure long-term operational stability.

[0061] The suction cup rotation mechanism 10 is located at the movable end of the suction cup lifting mechanism 8, as detailed in the attached diagram. Figure 10 As shown, the suction cup rotation mechanism 10 includes a third driving member 1001, a rotating rod 1002, and a top support 1003. The third driving member 1001 is fixedly installed on the lower surface of the fixed support 801, and the rotating rod 1002 is connected to the output end of the third driving member 1001 via a spline. The rotating rod 1002 is vertically inserted through the upper surface of the fixed support 801 and has a hollow internal structure. The top support 1003 is fixedly connected to the top of the rotating rod 1002. The third driving member 1001 drives the rotating rod 1002 to rotate, thereby driving the top support 1003 and the plate adsorption mechanism 11 on it to rotate around the vertical axis, thereby adjusting the plate angle. In bending processing, when it is necessary to bend different edges of the plate, the plate can be rotated to the required angle through the suction cup rotation mechanism 10 without re-clamping, improving processing efficiency. At the same time, when processing extremely small sheet metal parts, the plate adsorption mechanism 11 can be rotated 180° to switch to the electromagnet adsorption mode to ensure plate stability.

[0062] The top of the suction cup rotation mechanism 10 is provided with a plate adsorption mechanism 11; specifically, as shown in the attached figure. Figure 9 and 11As shown, the sheet metal adsorption mechanism 11 includes a suction cup frame 1101, a first vacuum suction cup 1102, a mounting block 1103, and an electromagnet 1104. The suction cup frame 1101 is built into the top support 1003, and multiple first vacuum suction cups 1102 are fixedly mounted on its top. The multiple first vacuum suction cups 1102 are all equidistantly arranged on the upper surface of the top support 1003, so that the adsorption force is evenly distributed and the sheet metal is not deformed by local stress. The mounting block 1103 is fixedly mounted on the side of the top support 1003, and the electromagnet 1104 is fixedly mounted on the side of the mounting block 1103. The first vacuum suction cup 1102 adsorbs the surface of the sheet metal through vacuum negative pressure, which is suitable for adsorbing ordinary large, medium and small sheets. The electromagnet 1104 is used to provide additional magnetic adsorption when processing extremely small ferromagnetic sheet metal parts to make up for the problem of insufficient vacuum adsorption force. The two adsorption methods can be used alone or in combination, which greatly improves the reliability and applicability of the sheet metal clamping.

[0063] Furthermore, one end of the suction cup holder 1101 located inside the top support 1003 is provided with a vacuuming mechanism 16 for drawing a vacuum inside. The vacuuming mechanism 16 includes a vacuum generator 1601 and a spring air tube 1602. The vacuum generator 1601 is fixedly installed on the upper surface of the transverse movable plate 701, and its air inlet end is connected to the spring air tube 1602. The spring air tube 1602 is wound around the outside of the rotating rod 1002, and its air inlet end passes through the inside of the rotating rod 1002 and connects to the suction cup holder 1101. The air inlet of 1 is connected; the vacuum mechanism 16 provides a stable vacuum source for the first vacuum suction cup 1102, the vacuum generator 1601 generates negative pressure, which is transmitted to the suction cup frame 1101 through the spring air tube 1602, thereby causing each first vacuum suction cup 1102 to generate suction force; the spring air tube 1602 has the characteristics of being stretchable and flexible, which can adapt to the rotation of the rotating rod 1002 in the suction cup rotation mechanism 10 and the lifting and lowering movement of the suction cup lifting mechanism 8, avoiding the air tube from being entangled or stretched and damaged, and ensuring that the air path is unobstructed.

[0064] The horizontal adjustment mechanism 12 is located on top of the second support frame 3 on both sides, as detailed in the attached document. Figure 7As shown, the horizontal adjustment mechanism 12 includes a horizontal slide 1201, a manual clamp 1202, and a support truss 1203. There are two horizontal slides 1201, each slidably connected to the top of one of the two second support frames 3. The lower surfaces of the horizontal slides 1201 are slidably connected to the second support frames 3 via sliding members. The support truss 1203 is horizontally fixedly connected to the tops of the two horizontal slides 1201. The manual clamp 1202 is installed on one of the horizontal slides 1201 and can fix the horizontal slide 1201 in place. The front and rear positions of the unloading translation mechanism 13 and the unloading suction cup mechanism 14 in the horizontal plane can be manually adjusted by the manual clamp 1202. The horizontal slide 1201 slides along the top of the second support frame 3, and the support truss 1203 moves accordingly. After adjustment, the horizontal slide 1201 is locked by the manual clamp 1202 to prevent it from sliding accidentally and to ensure the accuracy and stability of the unloading position. When the upper pressure knife of the bending machine needs to be replaced according to processing requirements, the horizontal adjustment mechanism 12 can be moved to the side away from the pressure knife, so as to provide operating space for tool replacement and make it easier to replace the pressure knife.

[0065] The upper surface of the horizontal adjustment mechanism 12 is provided with a feeding translation mechanism 13; specifically, as shown in the attached figure. Figure 6 As shown, the unloading translation mechanism 13 includes a fourth driving member 1301, pulleys 1302, a synchronous belt 1303, and a locking block 1304. There are two pulleys 1302, which are rotatably connected to both sides of the upper surface of the support truss 1203. The movable end of the fourth driving member 1301 is connected to one of the pulleys 1302. The synchronous belt 1303 is connected to the outside of the two pulleys 1302, and the locking block 1304 is locked and fixed to the side of the synchronous belt 1303. The fourth driving member 1301 drives the pulleys 1302 to rotate, causing the synchronous belt 1303 to circulate. The locking block 1304 on the synchronous belt 1303 drives the unloading suction cup mechanism 14 to move horizontally along the support truss 1203. The synchronous belt drive has the characteristics of smooth operation, low noise, and accurate positioning, which is suitable for the rapid and precise transfer of the formed workpiece during the unloading process. The locking block 1304 is fixedly connected to the synchronous belt 1303 to ensure reliable power transmission and avoid slippage.

[0066] The feeding suction cup mechanism 14 is located at the movable end of the feeding translation mechanism 13 and can move horizontally; specifically, as shown in the attached figure. Figure 8As shown, the unloading suction cup mechanism 14 can simultaneously adsorb and unload the bent workpiece. The unloading suction cup mechanism 14 includes a sliding mounting frame 1401, a telescopic cylinder 1402, a suction cup fixing plate 1403, and a second vacuum suction cup 1404. The sliding mounting frame 1401 is fixedly connected to the side of the locking block 1304 and slidably connected to the side of the support truss 1203. The side of the sliding mounting frame 1401 closest to the support truss 1203 is slidably connected to it via a sliding member. A sliding sleeve is fixedly installed on the side of the sliding mounting frame 1401, and a slide rail is fixedly installed on the side of the supporting truss 1203. The sliding sleeve on the sliding mounting frame 1401 is horizontally slidably connected to the slide rail on the side of the supporting truss 1203, ensuring the smooth movement of the sliding mounting frame 1401. The fixed cylinder body of the telescopic cylinder 1402 is fixedly installed on the side of the sliding mounting frame 1401, and the suction cup fixing plate 1403 is fixedly connected to the bottom of the movable rod of the telescopic cylinder 1402. The upper surface of the suction cup fixing plate 1403... Each of the four corners is equipped with a horizontally adjustable second vacuum suction cup 1404, and each second vacuum suction cup 1404 is connected to an external vacuum pumping line. At least three telescopic cylinders 1402 are equidistantly fixed to the side of the sliding mounting bracket 1401. When multiple telescopic cylinders 1402 extend synchronously, they drive the suction cup fixing plate 1403 and the second vacuum suction cups 1404 on it down to the surface of the workpiece. The second vacuum suction cups 1404 generate a vacuum suction force to grip the workpiece. Subsequently, the telescopic cylinders 1402 retract, the workpiece is lifted, and the unloading translation mechanism 13 drives the entire unloading suction cup mechanism 14 to the unloading position, completing the unloading. The equidistant arrangement of multiple telescopic cylinders 1402 ensures uniform force on the suction cup fixing plate 1403, enabling simultaneous adsorption of multiple workpieces and achieving synchronous unloading in one go, significantly shortening the unloading cycle time and improving production efficiency. The second vacuum suction cups 1404 are horizontally adjustable, facilitating adjustment of the adsorption point according to the workpiece size to meet the unloading requirements of different specifications of formed workpieces.

[0067] The first drive unit 702, the second drive unit 802, the third drive unit 1001, and the fourth drive unit 1301 can all be servo motors. The linear motor module 4, the first drive unit 702, the second drive unit 802, the third drive unit 1001, the electromagnet 1104, and the fourth drive unit 1301 are all electrically connected to the external control unit and are all electrically connected to the external circuit through wires. The lifting cylinder 503 and the telescopic cylinder 1402 are both connected to the external air circuit.

[0068] An operating method for an integrated loading and unloading equipment for sheet metal bending includes the following steps:

[0069] S1. Fix the mounting base 1 to the corresponding position of the bending part of the bending machine, ensuring that the linear motor module 4 and the sliding table ruler centering mechanism 5 on the first support frame 2 are located above the feeding area, and the horizontal adjustment mechanism 12 and the unloading translation mechanism 13 on the second support frames 3 on both sides are located on the discharge side.

[0070] S2. Place the sheet material to be bent in the loading area on one side of the mounting base 1. Each movable structure of the linear motor module 4 moves independently, driving each set of fixed seats 501, lifting seats 502, lifting cylinders 503 and positioning rulers 504 in the sliding table alignment mechanism 5 to move to the corresponding positions. Control the extension and retraction of the lifting cylinders 503 according to the sheet material specifications.

[0071] When processing large plates with side lengths ranging from 1001mm to 2000mm, the four sets of lifting cylinders 503 in the middle retract to hide the corresponding positioning rulers 504, while the two outermost sets of positioning rulers 504 on the left and right rise up. The two rulers move synchronously to complete the precise centering of the large plate on both sides.

[0072] When processing medium plates with side lengths ranging from 501mm to 1000mm, the movable rods of the two lifting cylinders 503 on the left and right retract to hide the corresponding positioning rulers 504, and move the two positioning rulers 504 on the left and right to the sides of the linear motor module 4 respectively. Only the two positioning rulers 504 in the middle move relative to each other to the sides of the plate and then rise up. Then, the two sets of positioning rulers 504 move closer to each other synchronously to achieve centering of the plate.

[0073] When processing three small boards with side lengths ranging from 151mm to 500mm simultaneously, multiple sets of positioning rulers 504 are raised and moved independently in different areas to complete the independent centering and positioning of the three small boards simultaneously.

[0074] S3. The second driving component 802 drives the lead screw 803 to rotate, causing the lead screw slider 804 and the lifting frame 805 to rise along the fixed bracket 801, thereby driving the suction cup rotation mechanism 10 and the plate adsorption mechanism 11 to move upward; the vacuum generator 1601 of the vacuum mechanism 16 works, and through the spring air tube 1602, the suction cup frame 1101 and multiple first vacuum suction cups 1102 generate negative pressure, and vacuum adsorb the aligned plate; then the suction cup lifting mechanism 8 continues to rise to lift the plate; the first driving component 702 drives the helical gear 703 to rotate along the rack 15, driving the transverse movable plate 701 to move forward along the transverse slide rail 6, and smoothly sending the plate into the bending host. During the movement, the felt helical gear 901 of the lubrication component 9 rolls along the rack 15 with the transverse movable plate 701, and the external lubricating oil enters the felt helical gear 901 through the rotary joint 902 and seeps out from the oil outlet, automatically lubricating the meshing part of the helical gear 703 and the rack 15.

[0075] S4. When processing large, medium and small plates of ordinary size, the bending host performs bending action, and the plate adsorption mechanism 11 continuously adsorbs the plate through the first vacuum suction cup 1102 to complete the bending; as needed, the third driving component 1001 drives the rotating rod 1002 and the top support 1003 to rotate, driving the plate to rotate to the required angle so that different edges of the plate can be bent without re-clamping.

[0076] When processing extremely small sheet metal parts with side lengths ranging from 100mm to 150mm, the bending host's pressure knife first presses the sheet metal for positioning; the lateral movement mechanism 7 drives the suction cup lifting mechanism 8, the suction cup rotating mechanism 10, and the sheet metal adsorption mechanism 11 to retract and exit the bending area as a whole; the suction cup rotating mechanism 10 drives the sheet metal adsorption mechanism 11 to rotate 180°, so that the electromagnet 1104 on the mounting block 1103 faces the sheet metal, switching to the electromagnet adsorption mode to firmly adsorb the sheet metal, continuously cooperating with the bending action to prevent small sheets from loosening, falling off, or shifting;

[0077] S5. After bending, the lateral moving mechanism 7 drives the suction cup lifting mechanism 8, the suction cup rotating mechanism 10, and the sheet metal adsorption mechanism 11 to transfer all the formed sheet metal to the unloading area on the discharge side; the fourth driving component 1301 drives the pulley 1302 and the synchronous belt 1303 to move, and the locking block 1304 drives the unloading suction cup mechanism 14 to move horizontally along the support truss 1203 to above the formed sheet metal; multiple telescopic cylinders 1402 extend synchronously, driving the suction cup fixing plate 1403 and the second vacuum suction cup 1404 to descend, and the second vacuum suction cup 1404 generates vacuum adsorption force to simultaneously adsorb multiple finished workpieces; then the telescopic cylinders 1402 retract and lift the workpieces, and the unloading translation mechanism 13 drives the unloading suction cup mechanism 14 to move to the next process, completing the synchronous unloading in one go.

[0078] S6. When it is necessary to replace the pressure knife on the bending machine, loosen the manual clamp 1202 in the horizontal adjustment mechanism 12, and push the horizontal slide 1201 to slide along the top of the second support frame 3 away from the pressure knife, so that the support truss 1203, the unloading translation mechanism 13, and the unloading suction cup mechanism 14 can make room for the tool replacement, which is convenient for the tool replacement operation; after the tool replacement is completed, readjust the position of the horizontal slide 1201 and lock the manual clamp 1202.

[0079] S7. While the bending host performs bending processing, the next batch of sheet metal is placed on the loading side. The linear motor module 4 drives the sliding table ruler centering mechanism 5 to complete the centering and positioning in advance. The vacuuming mechanism 16 continuously maintains the stability of the vacuum source. Each process operates in parallel and alternately without waiting intervals, realizing uninterrupted, high-precision, and high-efficiency continuous bending production of sheet metal.

[0080] The above description is only for illustrating the present invention and should be understood as not being limited to the above embodiments. Various modifications that conform to the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An integrated loading and unloading equipment for sheet metal bending processing, characterized in that, include: The mounting base (1) has a first support frame (2) fixedly connected to the middle of its upper surface, and a second support frame (3) fixedly connected to both sides of the mounting base (1). A linear motor module (4) is located on the top of the first support frame (2) near the mounting base (1) and its movable end is provided with a sliding table ruler centering mechanism (5). A transverse slide rail (6) is provided on the upper surface of the mounting base (1) and a transverse moving mechanism (7) is connected above it. The suction cup lifting mechanism (8) is provided on the transverse moving mechanism (7), and the transverse moving mechanism (7) is provided with a lubrication component (9) for lubricating the transmission parts of the transverse moving mechanism (7). The suction cup rotation mechanism (10) is located at the movable end of the suction cup lifting mechanism (8) and has a plate adsorption mechanism (11) on its top. A horizontal adjustment mechanism (12) is set on the top of the second support frame (3) on both sides and a feeding translation mechanism (13) is set on its upper surface. The feeding suction cup mechanism (14) is located at the movable end of the feeding translation mechanism (13) and can move horizontally; The sliding table centering mechanism (5) consists of multiple sets of fixed seats (501), lifting seats (502), lifting cylinders (503) and positioning rulers (504). The lifting seats (502) are vertically slidably connected to the side of the fixed seats (501) and the positioning rulers (504) are fixedly connected to the top of the lifting seats (502). The fixed cylinder body of the lifting cylinder (503) is vertically fixedly installed on the side of the fixed seats (501) and its movable end is fixedly connected to the positioning rulers (504).

2. The integrated loading and unloading equipment for sheet metal bending processing according to claim 1, characterized in that, The lateral moving mechanism (7) includes a lateral movable plate (701), a first driving member (702), and a helical gear (703). The lateral movable plate (701) is laterally slidably connected above the lateral slide rail (6), and the first driving member (702) is fixedly installed on the upper surface of the lateral movable plate (701). The helical gear (703) is connected to the output end of the first driving member (702) by a spline and is located below the lateral movable plate (701). A rack (15) is fixedly installed on the upper surface of the mounting base (1) at the part corresponding to the helical gear (703), and the helical gear (703) and the rack (15) mesh with each other.

3. The integrated loading and unloading equipment for sheet metal bending processing according to claim 2, characterized in that, The suction cup lifting mechanism (8) includes a fixed bracket (801), a second driving member (802), a lead screw (803), a lead screw slider (804), and a lifting frame (805). The fixed bracket (801) is fixedly installed on the upper surface of the horizontal movable plate (701), and the lead screw (803) is vertically rotatably connected inside the fixed bracket (801). The second driving member (802) is fixedly installed on the upper surface of the fixed bracket (801), and its output end is connected to the lead screw (803) via a spline. The lifting frame (805) is fixedly connected to the lead screw slider (804), and the lead screw slider (804) is operatively connected to the outside of the lead screw (803). The lifting frame (805) is vertically slidably connected to the side of the fixed bracket (801) away from the first driving member (702).

4. The integrated loading and unloading equipment for sheet metal bending processing according to claim 2, characterized in that, The lubrication assembly (9) includes a felt helical gear (901) and a rotary joint (902). The rotary joint (902) is rotatably connected to the middle of the upper surface of the transverse movable plate (701) and its bottom end is fixedly connected to the felt helical gear (901). An oil outlet is provided at the top of the outer tooth slot of the felt helical gear (901) and the rotary joint (902) is connected to the oil outlet. The felt helical gear (901) is located below the transverse movable plate (701) and meshes with the rack (15). The inlet end of the rotary joint (902) is connected to the external oil supply pipeline.

5. The integrated loading and unloading equipment for sheet metal bending processing according to claim 3, characterized in that, The suction cup rotation mechanism (10) includes a third drive member (1001), a rotating rod (1002), and a top bracket (1003). The third drive member (1001) is fixedly installed on the lower surface of the fixed bracket (801), and the rotating rod (1002) is connected to the output end of the third drive member (1001) by a spline. The rotating rod (1002) is vertically inserted through the upper surface of the fixed bracket (801) and has a hollow structure inside. The top bracket (1003) is fixedly connected to the top of the rotating rod (1002).

6. The integrated loading and unloading equipment for sheet metal bending processing according to claim 5, characterized in that, The plate adsorption mechanism (11) includes a suction cup frame (1101), a first vacuum suction cup (1102), a mounting block (1103), and an electromagnet (1104). The suction cup frame (1101) is built into the top bracket (1003) and a plurality of first vacuum suction cups (1102) are fixedly installed on its top. The plurality of first vacuum suction cups (1102) are all located on the upper surface of the top bracket (1003) and are equidistantly arranged. The mounting block (1103) is fixedly installed on the side of the top bracket (1003) and the electromagnet (1104) is fixedly installed on the side of the mounting block (1103).

7. The integrated loading and unloading equipment for sheet metal bending processing according to claim 1, characterized in that, The horizontal adjustment mechanism (12) includes a horizontal slide (1201), a manual clamp (1202), and a support truss (1203). There are two horizontal slides (1201), and the two horizontal slides (1201) are slidably connected to the top of two second support frames (3). The support truss (1203) is horizontally fixedly connected to the top of the two horizontal slides (1201). The manual clamp (1202) is installed on one of the horizontal slides (1201) and can fix the horizontal slide (1201).

8. The integrated loading and unloading equipment for sheet metal bending processing according to claim 7, characterized in that, The material feeding translation mechanism (13) includes a fourth driving member (1301), a pulley (1302), a timing belt (1303), and a locking block (1304). There are two pulleys (1302), and the two pulleys (1302) are rotatably connected to both sides of the upper surface of the support truss (1203). The movable end of the fourth driving member (1301) is connected to one of the pulleys (1302). The timing belt (1303) is connected to the outside of the two pulleys (1302), and the locking block (1304) is locked and fixed to the side of the timing belt (1303).

9. The integrated loading and unloading equipment for sheet metal bending processing according to claim 8, characterized in that, The feeding suction cup mechanism (14) includes a sliding mounting frame (1401), a telescopic cylinder (1402), a suction cup fixing plate (1403), and a second vacuum suction cup (1404). The sliding mounting frame (1401) is fixedly connected to the side of the locking block (1304) and slidably connected to the side of the supporting truss (1203). The fixed cylinder body of the telescopic cylinder (1402) is fixedly installed on the side of the sliding mounting frame (1401), and the suction cup fixing plate (1403) is fixedly connected to the bottom of the movable rod of the telescopic cylinder (1402). A horizontally adjustable second vacuum suction cup (1404) is installed at each of the four corners of the upper surface of the suction cup fixing plate (1403). Each second vacuum suction cup (1404) is connected to an external vacuum pipeline. The telescopic cylinder (1402) is at least three in number and is fixedly installed at equal intervals on the side of the sliding mounting frame (1401).

10. A method for operating an integrated loading and unloading device for sheet metal bending processing as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Install the mounting base (1) at the position corresponding to the bending part of the bending machine. After the equipment is started, place the plate to be bent in the loading area on one side of the mounting base (1). The linear motor module (4) drives the sliding table ruler centering mechanism (5) to move to the side of the plate. The multiple sets of lifting cylinders (503) in the sliding table ruler centering mechanism (5) control the corresponding positioning rulers (504) to lift according to the plate specifications. When processing the large plate, the four sets of lifting cylinders (503) in the middle retract to hide the corresponding positioning rulers (504) and move them to the middle of the linear motor module (4). Then, the two positioning rulers (504) on both sides are raised, and the two rulers move synchronously to complete the precise centering of the large plate on both sides. When processing the middle plate, the movable rods of the two lifting cylinders (503) on the left and right retract to hide the corresponding positioning rulers (504), and move the two positioning rulers (504) on the left and right to the sides of the linear motor module (4) respectively. Only the two positioning rulers (504) in the middle move to the sides of the plate and then rise up. Then, the two sets of positioning rulers (504) move closer to each other in sync to achieve the centering of the plate. When the three small boards are processed simultaneously, multiple sets of positioning rulers (504) move independently in separate zones, corresponding to the two sides of the three small boards respectively and rising up, so that the positioning rulers (504) on both sides of each small board are close to each other, thereby completing the independent centering and positioning of the three small boards simultaneously. S2. The suction cup lifting mechanism (8) drives the plate adsorption mechanism (11) to move upward, and vacuum adsorbs the plate that has been precisely aligned; the horizontal moving mechanism (7) moves forward along the horizontal slide rail (6) and smoothly sends the plate into the bending host; during the movement, the lubrication component (9) lubricates the transmission parts of the horizontal moving mechanism (7). S3. When processing large, medium, and small plates of ordinary size, the bending host performs bending action, and the plate adsorption mechanism (11) cooperates to clamp and complete the sheet metal bending. The plate can be rotated through the suction cup rotation mechanism (10), which facilitates bending processing on each edge of the plate. When processing extremely small sheet metal parts, the pressing knife of the bending host first presses the sheet metal for positioning. The lateral movement mechanism (7) drives the suction cup lifting mechanism (8), the suction cup rotation mechanism (10), and the plate adsorption mechanism (11) to retreat and exit the bending area as a whole. The suction cup rotation mechanism (10) drives the plate adsorption mechanism (11) to rotate 180°. The plate adsorption mechanism (11) switches the adsorption mode to stabilize the adsorption of the sheet metal and continues to cooperate with the bending action to prevent small plates from loosening, falling off, or shifting. S4. After bending, the lateral moving mechanism (7) drives the suction cup lifting mechanism (8) and the sheet metal adsorption mechanism (11) to transfer all the formed sheet metal to the unloading area on the discharge side; the unloading translation mechanism (13) drives the unloading suction cup mechanism (14) to move horizontally above the formed sheet metal, the unloading suction cup mechanism (14) descends and simultaneously adsorbs multiple finished workpieces, and then the unloading translation mechanism (13) drives multiple finished workpieces to the next process, thereby completing the synchronous unloading in one go; S5. While the bending host performs bending processing, the feeding side re-places and feeds the next batch of sheet metal. The sliding table ruler centering mechanism (5) completes the centering and positioning in advance. Each process operates in parallel and interleaved, without waiting intervals, realizing continuous bending production of sheet metal with high precision and high efficiency.

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