High-strength light outdoor folding table and chair processing and forming equipment

Abstract

The invention belongs to the technical field of forming equipment, and discloses high-strength light outdoor folding table and chair machining forming equipment which comprises a portal frame and a three-axis moving mechanism slidably mounted on the portal frame, the output end of the three-axis moving mechanism is connected with a rotating mechanism, and the output end of the rotating mechanism is connected with a rotating disc. A plurality of sliding rails are uniformly mounted on the turntable, and execution elements are mounted on the sliding rails; a rotary base is installed on the side of the portal frame, the output end of the rotary base is connected with a rotary shaft, the rotary shaft is provided with installation plates, the number of the installation plates corresponds to that of the sliding rails, and the installation plates are provided with clamping tools matched with operation of the execution elements. The problems of precision and efficiency of sequential processing are solved. According to the modular design, executive components and tools can be replaced, more processes such as welding are adapted, the application range is wide, and the cost performance is high.

Description

Technical Field

[0001] This invention belongs to the field of molding equipment technology, specifically relating to high-strength, lightweight outdoor folding table and chair processing molding equipment. Background Technology

[0002] With the upgrading of outdoor leisure and work needs, high-strength, lightweight outdoor folding tables and chairs are gradually becoming the mainstream in the market. Their core design focuses on "lightweight materials" and "integrated structure": in terms of materials, they widely use dissimilar materials such as carbon fiber composite materials (tabletop / backrest), aluminum alloy thin-walled tubes (support legs / folding frame), and reinforced engineering plastics (folding joints / protective parts) to achieve a balance between high strength and lightweight; in terms of structure, it is necessary to precisely assemble three types of components: sheet metal, tubular materials, and plastic materials to ensure smooth folding and overall load-bearing stability. This trend has put forward the core requirements for processing and forming equipment: "integrating multiple processes, ensuring compatibility with multiple materials, and achieving high-precision collaborative processing."

[0003] In existing technologies, the processing and molding of outdoor folding tables and chairs still relies on traditional sequential or single-function equipment, which is insufficient to meet the aforementioned requirements and presents significant technical bottlenecks. Firstly, the three types of components require sequential processing using independent equipment (laser cutting for sheet metal, hydraulic bending for pipes, and injection molding for plastic parts), resulting in a fragmented production process. Manual handling and repetitive positioning easily lead to dimensional deviations, causing inconsistent assembly standards and affecting the structural stability of the folding tables and chairs. Secondly, the equipment lacks integration and flexibility. Single-function equipment is only suitable for single-material or fixed-specification components, requiring changes to fixtures or molds for model changes. This makes it difficult to meet the needs of multi-style, small-batch production. Furthermore, the lack of layout and motion coordination design for multiple process modules easily leads to structural interference, preventing "continuous and uninterrupted" progressive processing. These limitations hinder the efficient and high-quality production of high-strength, lightweight outdoor folding tables and chairs. Summary of the Invention

[0004] In view of the problems mentioned in the background art above, the purpose of this invention is to provide a high-strength, lightweight outdoor folding table and chair processing and forming equipment.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A high-strength, lightweight outdoor folding table and chair processing and forming equipment includes a gantry frame and a three-axis moving mechanism slidably mounted on the gantry frame. The output end of the three-axis moving mechanism is connected to a rotating mechanism, and the output end of the rotating mechanism is connected to a turntable. The turntable is evenly equipped with several slide rails, and the slide rails are equipped with actuators. A rotating base is installed on the side of the gantry frame. The output end of the rotating base is connected to a rotating shaft. The rotating shaft is equipped with mounting plates corresponding to the number of slide rails. The mounting plates are equipped with clamping fixtures that cooperate with the operation of the actuator.

[0006] Further specifying, the rotating mechanism includes a first motor, the output end of which is connected to a speed-changing mechanism, the output end of which is connected to the center of the turntable. The rotation of the first motor realizes the rotation of the turntable, and thus controlling the rotation speed and rotation angle of the first motor can control the rotation speed and rotation angle of the turntable.

[0007] Furthermore, the actuators include a laser cutting mechanism, a hydraulic bending mechanism, and an ultrasonic shaping mechanism. Each actuator is individually mounted on each of the slide rails, enabling the cutting of desktop panels, bending of pipes, and forming of plastic parts.

[0008] Further specifying, the slide rail is equipped with a self-moving mechanism, and the laser cutting mechanism, hydraulic bending mechanism, and ultrasonic shaping mechanism are each mounted on the self-moving mechanism at corresponding positions. The self-moving mechanism includes movable wheels slidably mounted on the upper and lower sides of the slide rail, and movable plates are mounted at both ends of the movable wheels. A second motor is mounted on one of the movable plates, and the actuator is mounted on the other movable plate. The output end of the second motor is connected to the power end of the movable wheel for belt drive, thereby realizing the positional adjustment of the actuator.

[0009] Further specifying, the rotating base includes a support base, a third motor is installed inside the support base, the output end of the third motor is connected to the axis of the rotating shaft, the rotating shaft is rotatably mounted on the support base through bearings, and the running speed and rotation angle of the rotating shaft can be controlled by controlling the running speed and rotation angle of the third motor.

[0010] Furthermore, the mounting plate is provided with an avoidance opening and an installation opening, and the mounting plate is equipped with a dust removal device. The avoidance opening can be used to perform cutting, and the installation opening can be used to facilitate the installation of various tooling fixtures.

[0011] Further specifying, the clamping fixture includes an L-shaped stop block mounted on the mounting plate, a straight plate mounted on the top of the corner of the L-shaped stop block, a clamping fixture mounted on the straight plate, and a screw threadedly connected to the straight plate. A hand crank is mounted on the power end of the screw, and a pressure plate is rotatably connected to the output end of the screw. The L-shaped stop block achieves positional blocking and limiting. Rotating the hand crank can move the position of the pressure plate, thereby fixing the position of the tabletop that is blocked and limited.

[0012] Furthermore, the clamping fixture includes a telescopic cylinder and a pressure plate connected to the output end of the telescopic cylinder. Controlling the operation of the telescopic cylinder can achieve the clamping of the desktop board, thus enhancing its intelligence.

[0013] Further specifying, the clamping fixture includes a base mounted on the mounting plate, with stop forks installed at both ends of the base. The base is provided with bending grooves, in which the pipe is placed. The bending grooves limit the bending angle of the pipe, and the stop forks limit the position of the pipe. Further defined, the laser cutting mechanism includes a cutting head, a focusing component, an automatic focusing sensor, and a dust collection structure surrounding the cutting head; the hydraulic bending mechanism includes a drive cylinder, a universal detachable matching tooling, and an angle detection structure; and the ultrasonic shaping mechanism includes a transducer, a universal cavity, a pressure application structure, and a heating element, thereby achieving automated laser cutting, automated bending, and shaping.

[0014] The beneficial effects of using the present invention are as follows: The core advantage of this equipment lies in its integrated processing of heterogeneous components, fundamentally eliminating the precision loss caused by the existing sequential processing mode. Through an integrated composite actuator, it integrates three process modules from top to bottom: laser cutting, hydraulic bending, and ultrasonic shaping. Combined with a layered intelligent worktable featuring three independent fixture areas for "sheet material-tube material-plastic material," the equipment can complete the processing of three core heterogeneous components of folding tables and chairs—the tabletop (carbon fiber composite material), the support legs (aluminum alloy thin-walled tube), and the folding joint cover (reinforced engineering plastic)—in a single, continuous, and uninterrupted operation. Compared to the existing "multi-equipment sequential processing + manual transfer" mode, this completely eliminates dimensional deviations caused by transfer collisions and repeated positioning, improving the assembly benchmark uniformity of the three types of components by over 90%, and precisely controlling assembly gaps within 0.5mm. This significantly optimizes the smoothness of opening and closing and the structural stability of folding tables and chairs. Meanwhile, relying on the X / Y / Z three-axis linkage system of the support frame and the mechanical turntable built into the execution end, each process module achieves interference-free switching through "rotation avoidance + vertical progression". The coaxiality error between the module's central axis and the corresponding layer fixture positioning center is ≤0.1mm / m, ensuring that the deviation of the laser cutting path, pipe bending angle, plastic molding cavity and component design dimensions is always controlled within 0.3mm, effectively solving the industry pain point of lack of multi-reference coordination in existing equipment.

[0015] In terms of flexible production capabilities, this invention significantly overcomes the limitations of existing single-function equipment, perfectly meeting the market demand for multiple styles and small batches. The hydraulic bending module adopts a combination design of "adjustable tooling + angle closed-loop detection." By changing the V-groove liner and finely adjusting the clamping distance, it can flexibly adapt to aluminum alloy thin-walled tubes of different specifications from φ10 to 50mm without replacing the entire bending mold. The ultrasonic shaping module is equipped with "quick-locking detachable cavity," which allows for cavity replacement of plastic parts with different structures such as folding joint covers and anti-slip pads in just 5 minutes, improving mold replacement efficiency by 80% compared to existing injection molding machines.

[0016] This equipment achieves dual optimization of processing efficiency and cost control through integrated design, effectively lowering the threshold for industrial production. The integrated processing mode reduces the processing cycle of a single set of table and chair core components from 40 minutes in the existing technology to less than 8 minutes, increasing the unit time output by 400%. At the same time, it eliminates manual transfer between multiple devices and intermediate inspection processes. A single set of equipment can reduce the number of operators by 3-4, reducing labor costs by more than 60%. Attached Figure Description

[0017] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a schematic diagram of the structure of an embodiment of the high-strength lightweight outdoor folding table and chair processing and forming equipment of the present invention; Figure 2 This is a schematic diagram showing the installation plate of the high-strength lightweight outdoor folding table and chair processing and forming equipment of the present invention completely avoiding structural deviations. Figure 3 This is a cross-sectional structural schematic diagram of an embodiment of the high-strength lightweight outdoor folding table and chair processing and forming equipment of the present invention; Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle; The symbols for the main components are explained below: 1. Gantry frame; 2. Three-axis moving mechanism; 3. Rotating mechanism; 4. Turntable; 5. Slide rail; 6. Actuating element; 7. Rotating base; 8. Rotating shaft; 9. Mounting plate; 10. Clamping fixture; 11. Self-moving mechanism; First motor 31; speed change mechanism 32; 111 movable wheel; 112 movable plate; 113 second motor; Support base 71; Third motor 72; 101 L-shaped stop; 102 Straight plate; 103 Clamping fixture; 104 Lead screw; 105 Hand crank; 106 Pressure plate; 107 Base; 108 Fork; 109 Bending groove. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figures 1-4 As shown, the high-strength lightweight outdoor folding table and chair processing and forming equipment of the present invention includes a gantry frame 1 and a three-axis moving mechanism 2 slidably installed on the gantry frame 1. The output end of the three-axis moving mechanism 2 is connected to a rotating mechanism 3, and the output end of the rotating mechanism 3 is connected to a turntable 4. The turntable 4 is evenly equipped with a plurality of slide rails 5, and an actuator 6 is installed on the slide rails 5. A rotating base 7 is installed on the side of the gantry frame 1. A rotating shaft 8 is connected to the output end of the rotating base 7. A number of mounting plates 9 corresponding to the number of slide rails 5 are installed on the rotating shaft 8. A clamping fixture 10 that works in conjunction with the actuator 6 is installed on the mounting plate 9.

[0020] In this implementation case, the core lies in achieving multi-process integrated machining through "dual rotary system collaboration + three-axis movement adjustment + modular execution and tooling matching". Its overall structure and working principle are as follows: The equipment is supported by a gantry frame 1, which spans the work area in a "gate" shape. The bottom is fixed to the ground, and the top crossbeam provides the installation and movement track for the three-axis moving mechanism 2. The three-axis moving mechanism 2 can move freely in three directions: the X-axis along the length of the crossbeam, the Y-axis perpendicular to the length of the crossbeam, and the Z-axis vertically. The output end of the Z-axis is directly connected to the rotating mechanism 3, which is equivalent to providing the downstream components with the ability to "adjust a wide range of positions". The output end of the rotating mechanism 3 is connected to the turntable 4. The turntable 4 is a circular flat plate with several slide rails 5 evenly distributed on its edge. The number of slide rails 5 can be increased or decreased according to process requirements. Each slide rail 5 is equipped with an actuator 6. The actuator 6 is the core component that directly completes the processing action, such as a laser cutting mechanism, a hydraulic bending mechanism, an ultrasonic shaping mechanism, etc. Each actuator 6 can move freely along the corresponding slide rail 5 to adjust its position, match the running trajectory, and adapt to workpieces of different sizes. A rotating base 7 is provided on the opposite side of the gantry frame 1. Its bottom is fixed to the ground and its output end is connected to a horizontally extending rotating shaft 8. The rotating shaft 8 is fixed with the same number of mounting plates 9 as the slide rails 5. The number of mounting plates 9 corresponds to the number of slide rails and they are used in a coordinated manner. Each mounting plate 9 is equipped with a clamping fixture 10. The clamping fixture 10 is used to fix the blank to be processed and matches the corresponding actuator 6. For example, the laser cutting mechanism corresponds to the plate clamping fixture, and the hydraulic bending mechanism corresponds to the pipe clamping fixture. The working process of the equipment can be divided into four stages: "initial alignment - step-by-step processing - process switching - completion of processing", as detailed below: Initial alignment stage: Before the equipment is started, the turntable 4 and the rotating shaft 8 are in the "initial zero position". At this time, the first actuator is aligned vertically with the clamping fixture 10 on the first mounting plate 9, and the three-axis moving mechanism 2 drives the actuator 6 to a safe height. The operator puts the desktop blank into the first clamping fixture 10, and the fixture automatically clamps the blank. The insertion method can be manual or automatic. Step 1 Processing: Taking laser cutting as an example, the control system drives the three-axis moving mechanism 2 to move. The Z-axis moves downward, lowering the laser cutting mechanism to a processing height that matches the surface of the blank. The X-axis and Y-axis move together, driving the laser cutting mechanism to move along the surface of the blank. At the same time, the laser cutting mechanism starts and cuts the outline of the tabletop according to the preset path. If the blank size is large, the actuator 6 can move along the slide rail 5 through the self-moving mechanism to expand the processing range and ensure complete cutting. Process switching stage: After the desktop plate is cut, the actuator 6 moves to a safe position. Then, the rotating mechanism 3 starts, driving the turntable 4 to rotate. It should be noted that if the actuator 6 is large, the rotating shaft 8 can also be rotated so that the mounting plate 9 completely leaves the working range of the actuator 6. This ensures the correct position switching. The second actuator 9, such as the hydraulic bending mechanism, is rotated to the processing axis corresponding to the initial zero position and moved downwards to the position of the next mounting plate 9. The clamping fixture 10 on the second mounting plate 9 is rotated to align with the hydraulic bending mechanism. At this time, or before the entire equipment is started, the operator or automated equipment has placed the pipe blank into the second clamping fixture 10 and fixed it. The second step of processing: Taking hydraulic bending as an example, the three-axis moving mechanism 2 moves again, and the Z-axis moves downward, so that the tooling of the hydraulic bending mechanism is close to the pipe blank; then the hydraulic bending mechanism starts, drives the cylinder to press down, and cooperates with the bending groove of the clamping tooling 10 to bend the pipe at the preset limit angle. During this period, the actuator 6 can be finely adjusted along the slide rail 5 to ensure the accuracy of the bending point. The third step of processing and subsequent steps: Repeat the process switching action, align the third actuator, such as the ultrasonic shaping mechanism, with the third clamping fixture 10 to complete the shaping of plastic parts such as folding joints. After all processing is completed, the rotating mechanism 3 and the rotating base 7 are reset to the initial zero position, and the three-axis moving mechanism 2 drives the actuator 6 back to the safe height. The operator or automated equipment takes out the three types of parts that have been processed, completing one processing cycle.

[0021] Furthermore, the slide rails 5 on the turntable 4 can not be evenly arranged, but arranged vertically like the mounting plates 9. In this state, it is easy for those skilled in the art to understand that this can enable the synchronous processing of various different parts on several mounting plates 9. In this state, the synchronous processing of various different workpieces can further improve the processing efficiency. However, because the operating principles and applied forces of each actuator 6 are different, there may be problems with low processing accuracy, which need to be considered and adjusted accordingly.

[0022] The core advantages of the above structure lie in its "modular collaboration" and "high flexibility": the synchronous rotation of turntable 4 and rotating shaft 8 enables rapid switching between actuator 6 and clamping fixture 10. Combined with the position adjustment of the three-axis moving mechanism 2, multiple processing steps can be completed continuously on the same equipment without manual transfer of blanks. Its modular design allows it to easily adapt to more processing methods. For example, if it is necessary to process metal connectors for tables and chairs, such as welding hinges, one of the actuators 6 can be replaced with a welding mechanism such as an arc welding head, and the clamping fixture 10 on the corresponding mounting plate 9 can be replaced with a welding-specific positioning fixture to achieve the welding process. If a grinding process is required, such as polishing the edge of the tabletop, simply replace the actuator with a grinding mechanism and the fixture with a grinding positioning frame, and the equipment can be compatible without overall modification. This "replace actuator + match fixture" expansion mode allows the equipment to not only process the core components of outdoor folding tables and chairs, but also adapt to the multi-process processing of other furniture, such as outdoor dining tables and folding beds, greatly improving the applicability and cost-effectiveness of the equipment.

[0023] The preferred rotating mechanism 3 includes a first motor 31, the output end of which is connected to a speed change mechanism 32, and the output end of the speed change mechanism 32 is connected to the center of the turntable 4.

[0024] In this embodiment, the rotating mechanism 3 includes a first motor 31 and a speed-changing mechanism 32. The first motor 31 is a servo motor, which is fixed to the Z-axis output end of the three-axis moving mechanism 2 by a mounting bracket. The speed-changing mechanism 32 is a planetary gear reducer or a belt drive with different gear ratios. The input end is connected to the output shaft of the first motor 31 by a coupling, and the output end is fixed to the central shaft of the turntable 4 by a key connection. When working, the first motor 31 receives a signal from the control system and starts. The torque is amplified by the speed-changing mechanism 32 and drives the turntable 4 to rotate. The rotation angle of the turntable 4 can be precisely controlled by controlling the number of pulses of the motor, and the rotation speed of the turntable 4 can be controlled by adjusting the motor speed. The effect of the speed-changing mechanism 32 is to be more precise. Ensuring high precision and high torque in the rotation of turntable 4 effectively avoids rotational offset caused by load during actuator switching, improving switching positioning accuracy. The rotation angle and speed can be preset by the program to adapt to the switching needs of different actuators, resulting in high flexibility and solving the problems of low efficiency and poor precision of existing manual switching mechanisms.

[0025] Preferably, the actuator 6 includes a laser cutting mechanism, a hydraulic bending mechanism, and an ultrasonic shaping mechanism, with each actuator 6 individually mounted on each slide rail 5.

[0026] In this implementation, the actuator 6 includes a laser cutting mechanism, a hydraulic bending mechanism, and an ultrasonic shaping mechanism, each independently mounted on one of the three slide rails 5 of the turntable 4. The laser cutting mechanism is used to cut carbon fiber composite tabletops, the hydraulic bending mechanism is used to bend aluminum alloy thin-walled tube support legs, and the ultrasonic shaping mechanism is used to mold reinforced engineering plastic folding joints. The laser cutting mechanism integrates a cutting head, such as a 300W CO2 laser, a focusing component, a capacitive autofocus sensor, and an annular dust collection hood surrounding the cutting head. The hydraulic bending mechanism includes a 10t thrust hydraulic cylinder, replaceable tooling, and a contact angle sensor. The ultrasonic shaping mechanism includes a 20kHz transducer, a detachable cavity to adapt to different plastic part contours, a 0.5MPa pneumatic pressure cylinder, and a built-in heating tube with an adjustable temperature of 50–150℃. The actuator is not limited and can be replaced as needed. The three types of actuators listed are specifically adapted to the core component materials of folding tables and chairs, corresponding to carbon fiber, aluminum alloy and engineering plastics respectively. Through integrated layout, "one machine can complete the processing of multiple materials" and can connect the three types of processes without changing the equipment. The special components of each mechanism ensure the processing quality, making the roughness of the tabletop cutting edge ≤Ra1.6μm, the bending angle error of the tube ≤±1°, and the cavity filling rate of the plastic parts reach 100%, which solves the problem of poor adaptability of existing single-function equipment to multiple materials.

[0027] The preferred slide rail 5 is equipped with a self-moving mechanism 11. The laser cutting mechanism, hydraulic bending mechanism and ultrasonic shaping mechanism are each installed on the self-moving mechanism 11 at the corresponding position. The self-moving mechanism 11 includes a moving wheel 111 that is slidably installed on the upper and lower sides of the slide rail 5. Moving plates 112 are installed at both ends of the moving wheel 111. A second motor 113 is installed on one of the moving plates 112, and an actuator 6 is installed on the other moving plate 112. The output end of the second motor 113 is belt driven to the power end of the moving wheel 111.

[0028] In this embodiment, the self-moving mechanism 11 is installed on the slide rail 5 and is used to drive the actuator 6 to move radially along the slide rail 5. Specifically, it includes four moving wheels 111 that are slidably installed on the upper and lower sides of the slide rail 5. The two ends of the moving wheels 111 are connected to the moving plate 112 through bearings. A second motor 113 is fixed on one side of the moving plate 112, and the actuator 6 is fixed on the other side of the moving plate 112 through bolts. The output end of the second motor 113 is connected to the power end of one or more of the moving wheels 111 through a synchronous belt, which drives the moving wheels 111 to roll along the slide rail 5, thereby driving the actuator 6 to move. The radial position adjustment of the actuator 6 is achieved by the self-moving mechanism 11, which can adapt to processing parts of different sizes without changing equipment or adjusting the overall structure, significantly improving the flexibility. The rolling friction coefficient between the moving wheel 111 and the slide rail 5 is ≤0.02. With the closed-loop control of the servo motor, the movement positioning accuracy reaches ±0.05mm, ensuring the precise relative position of the actuator and the workpiece during processing, and solving the problem of the narrow adaptability of existing fixed-installation actuators.

[0029] The preferred rotating base 7 includes a support base 71, inside which a third motor 72 is installed. The output end of the third motor 72 is connected to the axis of the rotating shaft 8, and the rotating shaft 8 is rotatably mounted on the support base 71 through bearings.

[0030] In this embodiment, the rotating base 7 includes a support base 71 and a third motor 72. The support base 71 is a box-type structure made of cast iron, with the bottom fixed to the ground by expansion bolts and a bearing seat on the top. The third motor 72 is a servo motor, which is installed inside the support base 71 through a motor mount. The output shaft is connected to the axis of the rotating shaft 8 through a coupling. The rotating shaft 8 is a stepped shaft, which can be rotatably installed in the bearing seat of the support base 71 through two deep groove ball bearings. Three mounting plates 9 are evenly fixed on the shaft. During operation, the third motor 72 receives a signal from the control system and drives the rotating shaft 8 to rotate around its own axis. By controlling the number of motor pulses, the mounting plates 9 are accurately positioned and synchronized with the rotation of the turntable 4, ensuring that the clamping fixture 10 and the actuator 6 are always aligned.

[0031] The box-type structure and bearing housing design of the support base 71 provide stable support for the rotating shaft 8, ensuring that the radial runout during rotation is ≤0.03mm; the third motor 72 and the first motor 31 of the turntable 4 are linked through the control system to achieve the synchronization of "actuator switching - tooling alignment", avoiding machining interference caused by misalignment and solving the problem of poor coordination of the existing independent rotating system.

[0032] The preferred mounting plate 9 is provided with a clearance opening and a mounting opening, and the mounting plate 9 is equipped with a dust removal device.

[0033] In this implementation, the mounting plate 9 is a rectangular steel plate, fixed perpendicularly to the rotating shaft 8. It has two types of functional structures: one is a clearance opening, used to avoid the movement path of the cutting head during laser cutting, preventing the mounting plate 9 from blocking the laser beam or colliding with the cutting head; the other is a mounting opening, connected to the clamping fixture 10 by bolts, adaptable to the installation position adjustment of different fixtures. In addition, a dust removal device, such as a small axial flow fan + dust filter, is fixed to the edge of the mounting plate 9 via a bracket. The air outlet faces the clearance opening, which can suck away the smoke and dust generated by laser cutting. The clearance design provides ample operating space for processes such as laser cutting, ensuring that the actuator 6 can move freely above the mounting plate 9 and avoid structural interference; the waist-shaped mounting port allows the installation position of the clamping fixture 10 to be finely adjusted along the X / Y direction, adapting to the positioning requirements of workpieces of different sizes; the integrated dust removal device can directly handle processing fumes, reducing pollution to other parts of the equipment, improving the working environment, and solving the problem of conflict between existing equipment dust handling and fixture layout.

[0034] The preferred clamping fixture 10 includes an L-shaped stop 101 mounted on the mounting plate 9. A straight plate 102 is mounted on the top of the corner of the L-shaped stop 101. A clamping fixture 103 is mounted on the straight plate 102. The clamping fixture 103 includes a lead screw 104 threaded to the straight plate 102. A hand crank 105 is mounted on the power end of the lead screw 104. A pressure plate 106 is rotatably connected to the output end of the lead screw 104.

[0035] In this embodiment, the clamping fixture 10 is used to fix the desktop blank, including an L-shaped stop 101, a straight plate 102, and a clamping fixture 103: the L-shaped stop 101 is a welded angle steel structure, which is vertically fixed to the mounting plate 9, and the two right-angled sides respectively restrict the X-direction and Y-direction displacement of the desktop; the straight plate 102 is a steel plate, which is horizontally fixed or integrally formed on the top corner of the L-shaped stop 101; the clamping fixture 103 includes a lead screw 104, a hand crank 105, and a pressure plate 106. The lead screw 104 is engaged with the threaded hole of the straight plate 102, the top end is connected to the hand crank 105, and the bottom end is connected to the pressure plate 106 through a bearing.

[0036] When in use, place the desktop blank against the two right-angled sides of the L-shaped stop 101, rotate the hand crank 105 to drive the screw 104 to move down, so that the pressure plate 106 presses the surface of the blank, thus completing the fixing. The right-angle positioning of the L-shaped stop 101 ensures a uniform reference for the desktop board. Combined with the adjustable pressure plate 106, it can be adapted to carbon fiber boards or wood boards with a thickness of 3-10mm and a size of 200-500mm, making it highly versatile. The hand crank 105 is easy to operate, and the rubber pressure plate 106 can avoid damaging the surface of the board, solving the problem that existing rigid clamps are prone to damaging lightweight boards.

[0037] The preferred clamping fixture 103 includes a telescopic cylinder and a pressure plate connected to the output end of the telescopic cylinder.

[0038] In this implementation case, the clamping fixture 103 is an automated version, including a telescopic cylinder, such as a 50mm stroke pneumatic cylinder with a working pressure of 0.4MPa and a pressure plate. The telescopic cylinder body is fixed to the straight plate 102 by a flange, and the piston rod end is rigidly connected to the pressure plate 106. The extension and retraction of the cylinder is controlled by a solenoid valve. During operation, after receiving the blank arrival signal, the control system drives the piston rod of the telescopic cylinder to extend, and the pressure plate 106 moves down to press the blank; after processing is completed, the piston rod retracts and releases the blank. The pneumatic cylinder drive automates the clamping action, eliminating the need for manual operation. The clamping / releasing time for a single fixture is ≤1 second, which is 80% more efficient than the hand-cranked type. By adjusting the air pressure, the clamping force can be precisely controlled, adapting to plates of different strengths. This solves the positioning deviation problem caused by uneven clamping force in manual operation and improves the intelligence level of the equipment.

[0039] The preferred clamping fixture 10 includes a base 107 mounted on a mounting plate 9, with stop forks 108 mounted at both ends of the base 107, and a bending groove 109 provided on the base 107.

[0040] In this embodiment, the clamping fixture 10 is used to fix the pipe blank, including a base 107, a stop fork 108, and a bending groove 109: the base 107 is fixed to the mounting plate 9; the stop fork 108 consists of two U-shaped steel plates or two columns, which are vertically fixed to both ends of the base 107 to limit the axial displacement of the pipe; the bending groove 109 is a V-shaped groove or U-shaped groove machined in the middle of the base 107, and a wear-resistant alloy liner can be embedded in the groove to form a constraint space for pipe bending in cooperation with the tooling of the hydraulic bending mechanism. In use, the aluminum alloy thin-walled tube is placed in the bending groove 109, with both ends close to the stop fork 108. When the tooling of the hydraulic bending mechanism moves down, the tube bends at a preset angle under the constraint of the bending groove 109.

[0041] The combination of the stop fork 108 and the bending groove 109 precisely restricts the axial and radial displacement of the pipe, ensuring the stability of the bending point and angle; the wear-resistant liner reduces frictional damage between the pipe and the groove, ensuring the smoothness of the pipe surface after bending; and the base 107 with different angles can be replaced to adapt to various bending requirements, solving the problem of poor adaptability of existing fixed bending dies.

[0042] The preferred laser cutting mechanism includes a cutting head, a focusing assembly, an autofocus sensor, and a dust collection structure surrounding the cutting head; the hydraulic bending mechanism includes a drive cylinder, a universal detachable matching tooling, and an angle detection structure; and the ultrasonic shaping mechanism includes a transducer, a universal cavity, a pressure application structure, and a heating element.

[0043] In this implementation case, the laser cutting mechanism outputs a CO2 laser with a wavelength of 10.6μm. The focusing component adjusts the focal length by driving the lens displacement through a servo motor. The automatic focusing sensor detects the distance to the plate surface in real time to ensure that the focus always falls on the cutting surface. The dust collection structure surrounding the cutting head is connected to the central dust removal system through a hose, which adsorbs carbon fiber dust or wood chips generated during cutting under negative pressure. The hydraulic bending mechanism's drive cylinder is a double-acting hydraulic cylinder that can output 10t of thrust; the universal detachable matching tooling is connected to the cylinder via quick-change buckles, and the bending groove angle is adjustable to adapt to pipes of different diameters; the roller-type probe of the angle detection structure contacts the pipe surface to provide real-time feedback on the bending angle, forming a closed-loop control with the hydraulic cylinder; The transducer of the ultrasonic shaping mechanism converts electrical energy into 20kHz mechanical vibration, and the amplitude is amplified to 50μm by the amplitude transformer. The universal cavity is connected to the amplitude transformer through a bayonet structure and can be replaced within 30 seconds. The pneumatic cylinder of the pressure application structure provides axial pressure to ensure that the plastic preform fully fills the cavity. The heating element controls the cavity temperature at the plastic softening point and reduces shaping resistance. The automatic focusing and dust collection of the laser cutting mechanism ensure the cutting quality of carbon fiber plates; the closed-loop control and universal tooling of the hydraulic bending mechanism guarantee the bending accuracy and adaptability of the pipes; the temperature and pressure coordinated control of the ultrasonic shaping mechanism solves the problems of brittleness and under-filling of plastic parts. The special design of the three types of mechanisms increases the processing qualification rate of each component to 99%, far exceeding the average level of 85% of existing equipment, providing a reliable guarantee for the high strength characteristics of folding tables and chairs.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A high-strength, lightweight outdoor folding table and chair processing and forming equipment, comprising a gantry frame (1) and a three-axis moving mechanism (2) slidably mounted on the gantry frame (1), characterized in that: The output end of the three-axis moving mechanism (2) is connected to a rotating mechanism (3), the output end of the rotating mechanism (3) is connected to a turntable (4), the turntable (4) is evenly equipped with several slide rails (5), and the slide rails (5) are equipped with actuators (6). A rotating base (7) is installed on the side of the gantry (1). A rotating shaft (8) is connected to the output end of the rotating base (7). A number of mounting plates (9) corresponding to the slide rails (5) are installed on the rotating shaft (8). A clamping fixture (10) is installed on the mounting plate (9) to cooperate with the actuator (6).

2. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 1, characterized in that: The rotating mechanism (3) includes a first motor (31), the output end of which is connected to a speed change mechanism (32), and the output end of the speed change mechanism (32) is connected to the center of the turntable (4).

3. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 2, characterized in that: The actuator (6) includes a laser cutting mechanism, a hydraulic bending mechanism and an ultrasonic shaping mechanism, and each actuator (6) is individually mounted on each of the slide rails (5).

4. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 3, characterized in that: The slide rail (5) is equipped with a self-moving mechanism (11). The laser cutting mechanism, hydraulic bending mechanism and ultrasonic shaping mechanism are each installed on the self-moving mechanism (11) at the corresponding positions. The self-moving mechanism (11) includes a moving wheel (111) slidably installed on the upper and lower sides of the slide rail (5). The moving wheel (111) has a moving plate (112) installed at both ends. A second motor (113) is installed on one of the moving plates (112), and the actuator (6) is installed on the other moving plate (112). The output end of the second motor (113) is connected to the power end of the moving wheel (111) by a belt drive.

5. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 1, characterized in that: The rotating base (7) includes a support base (71), and a third motor (72) is installed inside the support base (71). The output end of the third motor (72) is connected to the axis of the rotating shaft (8). The rotating shaft (8) is rotatably mounted on the support base (71) through a bearing.

6. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 1, characterized in that: The mounting plate (9) is provided with an avoidance opening and an installation opening, and the mounting plate (9) is equipped with a dust removal device.

7. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 1, characterized in that: The clamping fixture (10) includes an L-shaped stop (101) mounted on the mounting plate (9). A straight plate (102) is mounted on the top of the corner of the L-shaped stop (101). A clamping fixture (103) is mounted on the straight plate (102). The clamping fixture (103) includes a screw (104) threaded to the straight plate (102). A hand crank (105) is mounted on the power end of the screw (104). A pressure plate (106) is rotatably connected to the output end of the screw (104).

8. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 7, characterized in that: The clamping fixture (103) includes a telescopic cylinder and a pressure plate connected to the output end of the telescopic cylinder.

9. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 1, characterized in that: The clamping fixture (10) includes a base (107) mounted on the mounting plate (9), with stop forks (108) mounted at both ends of the base (107), and a bending groove (109) provided on the base (107).

10. The high-strength, lightweight outdoor folding table and chair processing and forming equipment according to claim 3, characterized in that: The laser cutting mechanism includes a cutting head, a focusing assembly, an autofocus sensor, and a dust collection structure surrounding the cutting head. The hydraulic bending mechanism includes a drive cylinder, a universal detachable matching tooling, and an angle detection structure. The ultrasonic shaping mechanism includes a transducer, a universal cavity, a pressure application structure, and a heating element.

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