Fixed support components for metal frame assembly and fabrication

Abstract

This invention provides a fixed support assembly for metal frame assembly and processing, relating to the field of metal processing technology. The fixed support assembly for metal frame assembly and processing includes a support platform, a controller, and a fixing base. This invention fundamentally solves the problem of positioning misalignment during the horizontal assembly of large frames through an innovative magnetic-mechanical composite fixing system; the pressure block adopts a quick-change snap-fit ​​groove design, supporting rapid switching between various standard cross-sections such as U-shaped, L-shaped, and irregular shapes, resulting in short replacement time; the closed-loop system composed of a pressure sensor and controller can automatically match the optimal clamping force range according to the frame material (aluminum alloy / titanium alloy / composite material); the precise fit between the guide block and the second elongated groove ensures that the clamping force direction maintains a high angular accuracy with the frame axis. This improves the clamping efficiency of irregular cross-section frame components and significantly reduces the scrap rate.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, specifically to a fixed support assembly for assembling and processing metal frames. Background Technology

[0002] With the development of technology, the manufacturing and use of robots are becoming more and more widespread, especially in the transportation industry, where service robots are often used for tasks such as goods handling. Existing service robots include a robot skeleton, a robot shell, and parts installed on the robot shell. The robot skeleton can fix and support the robot shell. During robot production, the robot skeleton needs to be processed by drilling, grinding, welding, and other operations. Clamping equipment is required when processing the robot skeleton.

[0003] A publicly disclosed technology proposes a robot fixture for machining an assembly robot, comprising a mounting base and a U-shaped clamp. The upper end of the mounting base is provided with the U-shaped clamp, and a first interlocking groove is formed at the upper end of the mounting base. An interlocking seat is fixedly connected to the bottom end of the U-shaped clamp. Magnetic suction pieces are fixedly connected to the inner wall of the first interlocking groove. Threaded rods are screwed to the center positions of both sides of the upper end of the U-shaped clamp. One end of the threaded rod is located inside the U-shaped clamp and is rotatably connected to a clamping plate via a rotating shaft. A protective sleeve is fitted around the outer perimeter of the clamping plate. A second interlocking groove is formed at the bottom end of the U-shaped clamp, and a protective pad is fitted inside the second interlocking groove. Several interlocking holes are formed inside the bottom end of the second interlocking groove. Several interlocking buttons are integrally formed at the bottom end of the protective pad. This structure facilitates the use of the fixture, making it simple to operate and convenient to use.

[0004] However, the aforementioned clamps are not convenient for adjusting the processing angle of the robot, nor for omnidirectional processing of the robot. To facilitate the processing and assembly of the robot's metal frame, an improved technology proposes a clamping device for metal frame processing, including a waste collection box. A cover is fixedly installed on the top of the waste collection box, and dust collection devices are symmetrically fixed on both sides of the cover. A hydraulic rod is fixedly installed on the top of the cover. The drive component can control the relative or opposite movement of the clamping plates, so that the clamping plates can clamp and fix the parts to be welded to the robot frame. After the parts to be welded to the robot frame are clamped and fixed, the hydraulic rod controls the clamped and fixed parts to move down, so that the parts can be assembled on the top of the robot frame for easy welding and fixing. By setting a rotating mechanism, the rotary motor on the rotating mechanism can drive the drive gear to rotate. The drive gear can drive the rotating column to rotate through the driven gear. The rotating column can drive the turntable to rotate, which can adjust the processing angle of the robot frame, facilitating omnidirectional processing of the robot frame.

[0005] The aforementioned disclosed technology achieves support by pressing down on the metal frame from above using a hydraulic rod. However, it lacks a good clamping and fixing method for horizontally spliced ​​frame parts. In the prior art, pressure plates are usually used to press down and fix horizontally spliced ​​frames. During the pressing process, displacement of the pressed parts often occurs, affecting the splicing efficiency. Therefore, it is necessary to develop a fixed support assembly for metal frame assembly and processing to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a fixed support assembly for metal frame assembly and processing, which solves the problem of displacement of clamped and fixed parts in existing fixed support assemblies for metal frame assembly and processing.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a fixed support assembly for assembling and processing a metal frame, comprising a support platform, a controller, and a fixing seat. The lower wall of the support platform is provided with a support structure, and the upper wall of the support platform is provided with multiple sets of mounting holes. These mounting holes penetrate the body of the support platform in a vertical direction, and their top-view projection is oblong. A pressure block is engaged with the lower wall of the fixing seat. The lower wall of the pressure block is provided with a pressure groove adapted to the cross-sectional shape of the metal frame. An anti-slip pad is fixedly connected to the upper inner wall of the pressure groove. The lower wall of the fixing seat is located on the left and right sides of the pressure block. A sliding cavity is provided, and a sliding rod is slidably connected to the inner wall of the sliding cavity. The lower end of the sliding rod passes through the lower inner wall of the sliding cavity and extends to the lower wall of the fixed base. A support block is fixedly connected to the lower end of the sliding rod. The lower wall of the support block is provided with a first magnetic attraction structure for magnetic fixation with the support platform. A limit block is fixedly connected to the outer wall of the end of the sliding rod located inside the sliding cavity. An elastic structure is provided between the upper wall of the limit block and the upper inner wall of the sliding cavity for maintaining the sliding rod in the popped-out state. A pressing drive device for pressing the fixed base against the surface of the support platform for fixation is rotatably connected to the top of the fixed base.

[0008] To achieve mechanical self-locking tensioning, preferably, the pressure driving device includes a pressure plate and two sets of electric telescopic rods. The pressure plate is rotatably connected to the upper wall of the fixed base. The upper wall of the pressure plate is provided with a horizontal detection structure for detecting its horizontal state. The two sets of electric telescopic rods are slidably connected to the upper wall of the pressure plate and are respectively located near the two ends of the pressure plate in the length direction. The lower end of the electric telescopic rod is fixedly connected to a mounting block. An adjustment structure is provided between the mounting block and the pressure plate for convenient adjustment of the distance between the two sets of electric telescopic rods. The extended shaft end of the electric telescopic rod passes through the inner wall of the mounting block and the inner wall of the pressure plate in sequence and is fixedly connected to a first pull block. A sliding sleeve is slidably connected to the outer wall of the first pull block. The diameter of the sliding sleeve is smaller than the minimum inner diameter of the mounting hole. The lower end of the sliding sleeve is fixedly connected to a second pull block. The top-view projection area of ​​the second pull block is 0.8 times the top-view projection area of ​​the mounting hole. A second magnetic attraction structure is provided between the first pull block and the sliding sleeve to maintain their relative axial positions. The upper inner wall of the sliding sleeve is provided with a pressure detection structure for detecting the pressure between the first pull block and the upper inner wall of the sliding sleeve.

[0009] After the second pull block passes through the mounting hole, it rotates 90°, and its long side forms a surface contact with the lower wall of the support platform. The electric telescopic rod retracts to generate a stable tension force, which completely solves the problem of part displacement when the pressure plate moves down in the background technology.

[0010] To achieve adaptive pressing of the skeleton cross section, preferably, the lower wall of the fixing seat is provided with a snap-fit ​​groove, and the pressing block is snapped into the inner side wall of the snap-fit ​​groove.

[0011] Multiple pressure blocks can be manufactured according to the cross-sectional shape of the skeleton. The multiple pressure blocks have different pressure grooves. When changing pressure blocks of different specifications, their customized pressure grooves and anti-slip pads work together to prevent horizontal slippage during skeleton pressing, directly overcoming the defects of part displacement in the prior art.

[0012] To enable the rotation and lifting of the support platform, the support structure includes a base, a fixed tube, and a sliding tube. A rotating seat is fixedly connected to the lower wall of the support platform. The sliding tube is rotatably connected to the lower end of the rotating seat. The fixed tube is slidably connected to the end of the sliding tube away from the rotating seat. The base is fixedly connected to the end of the fixed tube away from the sliding tube. A first support plate and a second support plate are fixedly connected vertically to the inner wall of the sliding tube. A drive motor is fixedly connected to the lower wall of the first support plate. The end of the drive motor's protruding shaft passes through the first support plate and is fixedly connected to the lower wall of the support platform. Two sets of hydraulic cylinders are fixedly connected to the upper wall of the second support plate. The protruding shafts of both sets of hydraulic cylinders pass through the second support plate and are fixedly connected to the lower inner wall of the fixed tube. A base pad is fixedly connected to the lower wall of the base.

[0013] The hydraulic cylinder's extension shaft extends and retracts, which can drive the support platform to rise and fall, and the drive motor directly drives the support platform to rotate.

[0014] To achieve rapid pre-fixation of the fixed base, preferably, the first magnetic suction structure includes two sets of electromagnetic chucks, which are respectively disposed on the lower wall of a support block. The lower wall of the electromagnetic chucks is flush with the lower wall of the support block, and the support platform is made of magnetically conductive material.

[0015] When the support block contacts the support platform, the electromagnetic chuck is energized to generate an adsorption force, allowing the operator to temporarily position the fixed seat with one hand, providing a basis for subsequent precise clamping.

[0016] To ensure quick assembly and disassembly with reliability, preferably, the second magnetic attraction structure is a permanent magnet ring, which is fixedly connected to the outer circumferential wall of the first pull block, and the outer wall of the permanent magnet ring is slidably connected to the inner side wall of the sliding sleeve, which is made of magnetically conductive material.

[0017] When the operator pulls the sliding sleeve with one hand, the attraction force of the permanent magnet ring prevents the sliding sleeve from axially displacing from the first pulling block, thus improving the efficiency of the shaft-passing operation.

[0018] To ensure that the support block remains in contact with the support platform during the pressing process, preferably, the elastic structure is a spring, a positioning boss is provided on the upper inner wall of the sliding cavity, the spring is disposed between the upper inner wall of the sliding cavity and the upper wall of the limiting block, the upper end of the spring is sleeved on the outer wall of the positioning boss, and the lower end of the spring is sleeved on the outer wall of the sliding rod.

[0019] When the fixed seat is pressed down, the spring compresses the support block, allowing the support block to fit against the upper wall of the support platform.

[0020] To ensure the flatness accuracy of the pressing, preferably, the horizontal detection structure is a bubble level, which is fixedly connected to the upper wall of the pressing plate and is located in the center of the length direction of the pressing plate.

[0021] When adjusting the angle of the pressure plate, the bubble level provides real-time feedback on the horizontal status, ensuring that the clamping force acts perpendicularly on the surface of the skeleton, thus fundamentally eliminating the risk of clamping misalignment.

[0022] To ensure precise adjustment of the tension direction, preferably, the adjustment structure includes two sets of guide blocks and a first elongated groove. The two sets of guide blocks are fixedly connected to the lower wall of the mounting block in a front-to-back arrangement. The two sets of first elongated grooves are both located on the upper wall of the pressure plate and are close to both ends of the pressure plate in the length direction. A set of second elongated grooves is respectively provided on the inner wall of the pressure plate on both the front and rear sides of the first elongated groove. The two sets of guide blocks on the lower wall of the mounting block are slidably connected to the inner wall of the second elongated groove. The left-right length of the guide block is half the left-right length of the second elongated groove. The outer wall of the electric telescopic rod extension shaft is slidably connected to the inner wall of the first elongated groove.

[0023] When the installation block is moved, the guide block slides bidirectionally along the second elongated groove, forcibly maintaining the perpendicularity of the electric telescopic rod axis and preventing the frame position from shifting due to oblique pulling.

[0024] To achieve closed-loop control of the clamping force, preferably, the pressure detection structure is a pressure sensor, which is installed on the upper inner wall of the sliding sleeve.

[0025] When the electric telescopic rod is tensioned, the pressure sensor feeds back data to the controller in real time to dynamically adjust the clamping force, avoiding overload damage to the frame or insufficient clamping that could lead to displacement.

[0026] To achieve multi-angle pressing adjustment, preferably, a rotating column is rotatably connected to the upper wall of the fixed base, a pivot pin is provided at the upper end of the rotating column, the pressing plate is fixedly connected to the upper end of the pivot pin, and the central axis of the rotating column is perpendicular to the central axis of the pressing groove of the pressing block.

[0027] When the pressure plate is rotated, the cooperation between the rotating column and the rotating pin allows the pressure plate to rotate to any angle in the horizontal direction to fit the mounting holes in different positions.

[0028] This invention provides a fixed support assembly for assembling and processing metal frames. It offers the following advantages:

[0029] 1. Compared with existing technologies, this fixed support component for metal frame assembly and processing fundamentally solves the problem of positioning offset during horizontal splicing of large frames through an innovative magnetic-mechanical composite fixing system. Specifically, the magnetic pre-fixing structure formed by the electromagnetic chuck and the support platform can achieve temporary positioning with millimeter-level precision before pressing; the second pull block, through the 90° rotation self-locking design after the mounting hole, forms a rigid constraint with the tension control of the electric telescopic rod; this two-stage fixing mechanism ensures uniform distribution of contact pressure on the splicing surface.

[0030] 2. Compared with existing technologies, this fixed support component for metal frame assembly and processing, through the deep integration of modular functional units and intelligent control system, constructs a flexible clamping system adaptable to multiple working conditions: the pressure block adopts a quick-change snap-fit ​​groove design, supporting rapid switching of various standard cross-sections such as U-shaped, L-shaped, and irregular shapes, with short replacement time; the closed-loop system composed of pressure sensor and controller can automatically match the optimal clamping force range according to the frame material (aluminum alloy / titanium alloy / composite material); the precise cooperation between the guide block and the second elongated groove ensures that the clamping force direction and the frame axis always maintain a high angular accuracy; thus improving the clamping efficiency of irregular cross-section component frames and greatly reducing the scrap rate. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2For the present invention Figure 1 A magnified view of a section at point A in the middle;

[0033] Figure 3 This is a partial cross-sectional view of the support platform, sliding tube, hydraulic cylinder, and drive motor connection structure of the present invention.

[0034] Figure 4 This is a partial sectional view of the fixing base of the present invention;

[0035] Figure 5 This is a schematic diagram of the top view of the pressure plate structure of the present invention;

[0036] Figure 6 This is a schematic diagram of the connection structure between the mounting block and the guide block of the present invention;

[0037] Figure 7 This is a partial cross-sectional view of the connection structure between the electric telescopic rod and the sliding sleeve of the present invention;

[0038] Figure 8 This is a partial schematic diagram of the connection structure between the electric telescopic rod and the sliding sleeve of the present invention.

[0039] The components include: 1. Support platform; 2. Mounting hole; 3. Fixed seat; 301. Snap-fit ​​groove; 302. Sliding cavity; 4. Support block; 5. Pressure block; 6. Anti-slip pad; 7. Pressure plate; 701. First elongated groove; 702. Second elongated groove; 8. Bubble level; 9. Mounting block; 901. Guide block; 10. Electric telescopic rod; 11. Sliding sleeve; 12. Sliding rod; 13. Limiting block; 14. Spring; 15. Electromagnetic chuck; 16. Positioning boss; 17. Rotating column; 18. Turning pin; 19. First pull block; 20. Permanent magnet ring; 21. Pressure sensor; 22. Second pull block; 23. Base; 2301. Bottom pad; 24. Fixed tube; 25. Sliding tube; 26. Hydraulic cylinder; 27. Rotating seat; 28. Drive motor; 29. ​​First support plate; 30. Second support plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example:

[0042] like Figures 1 to 8 As shown, this embodiment of the invention provides a fixed support assembly for metal frame assembly and processing, including a support platform 1, a controller, and a fixing base 3;

[0043] To enable the rotation and lifting of the support platform, a support structure is provided on the lower wall of the support platform 1. The support structure includes a base 23, a fixed tube 24, and a sliding tube 25. A rotating seat 27 is fixedly connected to the lower wall of the support platform 1. The sliding tube 25 is rotatably connected to the lower end of the rotating seat 27. The fixed tube 24 is slidably connected to the end of the sliding tube 25 away from the rotating seat 27. The base 23 is fixedly connected to the end of the fixed tube 24 away from the sliding tube 25. A first support plate 29 and a second support plate 30 are fixedly connected to the inner wall of the sliding tube 25 in a vertically distributed manner. A drive motor 28 is fixedly connected to the lower wall of the first support plate 29. The end of the drive motor 28 extends through the first support plate 29 and is fixedly connected to the lower wall of the support platform 1. Two sets of hydraulic cylinders 26 are fixedly connected to the upper wall of the second support plate 30. The extension shafts of both sets of hydraulic cylinders 26 extend through the second support plate 30 and are fixedly connected to the lower inner wall of the fixed tube 24. A base pad 2301 is fixedly connected to the lower wall of the base 23.

[0044] The hydraulic cylinder 26 extends and retracts its shaft, which can drive the support platform 1 to rise and fall, and the drive motor 28 directly drives the support platform to rotate.

[0045] In order to achieve the universal positioning function of the support platform 1, multiple sets of mounting holes 2 are provided on the upper wall of the support platform 1. The mounting holes 2 penetrate the body of the support platform 1 in the vertical direction, and the top view of the mounting holes 2 is an elongated oval shape.

[0046] When it is necessary to adapt to skeletons of different sizes, the oblong mounting hole 2 provides a continuously adjustable mounting position, which solves the positioning limitation problem caused by the single fixing hole position in traditional methods.

[0047] In order to achieve adaptive pressing of the skeleton section, the lower wall of the fixed seat 3 is clamped with a pressure block 5. The lower wall of the pressure block 5 is provided with a pressing groove that matches the shape of the metal skeleton section. An anti-slip pad 6 is fixedly connected to the upper wall of the inner side of the pressing groove. The lower wall of the fixed seat 3 is provided with a snap-fit ​​groove 301, and the pressure block 5 is snapped into the inner side wall of the snap-fit ​​groove 301.

[0048] Multiple pressure blocks 5 can be prepared according to the cross-sectional shape of the skeleton. Multiple pressure blocks 5 have different pressure grooves. When changing pressure blocks 5 of different specifications, their customized pressure grooves and anti-slip pads 6 work together to prevent horizontal slippage during skeleton pressing, directly overcoming the defects of part displacement in the prior art.

[0049] To achieve rapid pre-fixation of the fixed base 3, a sliding cavity 302 is provided on the lower wall of the fixed base 3 on both sides of the pressure block 5. A sliding rod 12 is slidably connected to the inner wall of the sliding cavity 302. The lower end of the sliding rod 12 passes through the lower inner wall of the sliding cavity 302 and extends to the lower wall of the fixed base 3. A support block 4 is fixedly connected to the lower end of the sliding rod 12. A first magnetic attraction structure for magnetic fixation with the support platform 1 is provided on the lower wall of the support block 4. The first magnetic attraction structure includes two sets of electromagnetic chucks 15. The two sets of electromagnetic chucks 15 are respectively provided on the lower wall of a set of support blocks 4. The lower wall of the electromagnetic chucks 15 is flush with the lower wall of the support block 4. The support platform 1 is made of magnetically conductive material.

[0050] When the support block 4 contacts the support platform 1, the electromagnetic chuck 15 is energized to generate an adsorption force, enabling the operator to temporarily position the fixed seat 3 with one hand, providing a basis for subsequent precise clamping.

[0051] In order to ensure that the support block 4 always contacts the support platform 1 during the pressing process, a limiting block 13 is fixedly connected to the outer wall of one end of the sliding rod 12 inside the sliding cavity 302. An elastic structure for keeping the sliding rod 12 in the popped state is provided between the upper wall of the limiting block 13 and the upper inner wall of the sliding cavity 302. The elastic structure is a spring 14. A positioning boss 16 is provided on the upper inner wall of the sliding cavity 302. The spring 14 is located between the upper inner wall of the sliding cavity 302 and the upper wall of the limiting block 13. The upper end of the spring 14 is sleeved on the outer wall of the positioning boss 16, and the lower end of the spring 14 is sleeved on the outer wall of the sliding rod 12.

[0052] When the fixed seat 3 is pressed down, the spring 14 compresses the support block 4, so that the support block 4 can fit against the upper wall of the support platform 1.

[0053] In order to achieve multi-angle pressing adjustment, a pressing drive device for pressing the fixed seat 3 against the surface of the support platform 1 for fixing is rotatably connected to the top of the fixed seat 3. The pressing drive device includes a pressing plate 7 and two sets of electric telescopic rods 10. The pressing plate 7 is rotatably connected to the upper wall of the fixed seat 3. A rotating column 17 is rotatably connected to the upper wall of the fixed seat 3. A pivot pin 18 is provided at the upper end of the rotating column 17. The pressing plate 7 is fixedly connected to the upper end of the pivot pin 18. The central axis of the rotating column 17 is perpendicular to the central axis of the pressing groove of the pressing block 5.

[0054] When the pressure plate 7 is rotated, the cooperation between the rotating column 17 and the rotating pin 18 allows the pressure plate 7 to tilt to any angle in the horizontal direction, so as to fit the mounting holes 2 in different positions.

[0055] To ensure the flatness accuracy of the pressing, the upper wall of the pressing plate 7 is provided with a horizontal detection structure for detecting its horizontal state. The horizontal detection structure is a bubble level 8, which is fixedly connected to the upper wall of the pressing plate 7 and is located in the middle of the length direction of the pressing plate 7.

[0056] When adjusting the angle of the pressure plate 7, the bubble level 8 provides real-time feedback on the horizontal status, ensuring that the clamping force acts perpendicularly on the surface of the skeleton, thus fundamentally eliminating the risk of clamping misalignment.

[0057] In order to achieve distributed tension control, both sets of electric telescopic rods 10 are slidably connected to the upper wall of the pressure plate 7 and are respectively close to both ends of the length direction of the pressure plate 7.

[0058] When dealing with long and narrow frames, the two sets of electric telescopic rods 10 can be adjusted independently to make the tension evenly distributed on the frame;

[0059] To ensure precise adjustment of the pulling direction, an installation block 9 is fixedly connected to the lower end of the electric telescopic rod 10. An adjustment structure for convenient adjustment of the distance between the two sets of electric telescopic rods 10 is provided between the installation block 9 and the pressure plate 7. The adjustment structure includes two sets of guide blocks 901 and a first elongated groove 701. The two sets of guide blocks 901 are fixedly connected to the lower wall of the installation block 9 in a front-to-back distribution. The two sets of first elongated grooves 701 are both provided on the upper wall of the pressure plate 7 and are respectively close to both ends of the length direction of the pressure plate 7. A set of second elongated grooves 702 is provided on the inner wall of the pressure plate 7 and on the front and rear sides of the first elongated grooves 701. The two sets of guide blocks 901 on the lower wall of the installation block 9 are slidably connected to the inner wall of the second elongated groove 702. The length of the guide block 901 in the left-right direction is half the length of the second elongated groove 702 in the left-right direction. The outer wall of the extension shaft of the electric telescopic rod 10 is slidably connected to the inner wall of the first elongated groove 701.

[0060] When the installation block 9 is moved, the guide block 901 slides bidirectionally along the second elongated groove 702 to forcibly maintain the perpendicularity of the axis of the electric telescopic rod 10 and avoid the displacement of the frame position caused by the oblique pull.

[0061] To achieve mechanical self-locking tension, the end of the electric telescopic rod 10 extends through the inner wall of the mounting block 9 and the inner wall of the pressure plate 7 and is fixedly connected to the first pull block 19. The outer wall of the first pull block 19 is slidably connected to the sliding sleeve 11. The diameter of the sliding sleeve 11 is smaller than the minimum inner diameter of the mounting hole 2. The lower end of the sliding sleeve 11 is fixedly connected to the second pull block 22. The top-view projection area of ​​the second pull block 22 is 0.8 times the top-view projection area of ​​the mounting hole 2.

[0062] After the second pull block 22 passes through the mounting hole 2, it rotates 90° and its long side forms a surface contact with the lower wall of the support platform 1. It generates a stable tension force by retracting the electric telescopic rod 10, which completely solves the problem of part displacement when the pressure plate moves down in the background technology.

[0063] To ensure quick assembly and disassembly reliability, a second magnetic attraction structure is provided between the first pull block 19 and the sliding sleeve 11 to maintain their relative axial position. The second magnetic attraction structure is a permanent magnet ring 20, which is fixedly connected to the outer circumferential wall of the first pull block 19. The outer wall of the permanent magnet ring 20 is slidably connected to the inner wall of the sliding sleeve 11, which is made of magnetically conductive material.

[0064] When the operator pulls the sliding sleeve 11 with one hand, the attraction force of the permanent magnet ring 20 prevents the sliding sleeve 11 and the first pull block 19 from axial displacement, thus improving the efficiency of the shaft-passing operation.

[0065] In order to achieve closed-loop control of clamping force, a pressure detection structure is provided on the inner upper wall of the sliding sleeve 11 for detecting the pressure between the first pull block 19 and the inner upper wall of the sliding sleeve 11. The pressure detection structure is a pressure sensor 21, which is located on the inner upper wall of the sliding sleeve 11.

[0066] When the electric telescopic rod 10 applies tension, the pressure sensor 21 feeds back data to the controller in real time to dynamically adjust the clamping force, so as to avoid overload damage to the frame or insufficient clamping leading to displacement.

[0067] Working principle: When different sizes of skeletons need to be adapted, the elongated oval mounting hole 2 provides a continuously adjustable installation position, solving the positioning limitation problem caused by the single fixed hole position in traditional methods; multiple pressure blocks 5 can be prepared according to the cross-sectional shape of the skeleton, and multiple pressure blocks 5 have different pressure grooves. When changing pressure blocks 5 of different specifications, their customized pressure grooves and anti-slip pads 6 work together to prevent horizontal slippage during skeleton pressing, directly overcoming the defects of part displacement in the background technology; when the support block 4 contacts the support platform 1, the electromagnetic chuck 15 is energized to generate an adsorption force, allowing the operator to complete the temporary positioning of the fixed seat 3 with one hand, providing a basis for subsequent precise pressing; when the fixed seat 3 is pressed down, the spring 14 squeezes the support block 4, so that the support block 4 can fit against the upper wall of the support platform 1; when the pressure plate 7 is rotated, the cooperation between the rotating column 17 and the pivot pin 18 allows the pressure plate 7 to tilt to any angle in the horizontal direction, satisfying the adaptation of mounting holes 2 in different positions; when adjusting the angle of the pressure plate 7, the bubble level 8 provides real-time feedback on the water level. In a flat state, the clamping force is ensured to act perpendicularly on the skeleton surface, fundamentally eliminating the risk of clamping misalignment. When dealing with long strip skeletons, the two sets of electric telescopic rods 10 can be independently adjusted to ensure that the tension is evenly distributed on the skeleton. When moving the mounting block 9, the guide block 901 slides bidirectionally along the second elongated groove 702 to forcibly maintain the perpendicularity of the axis of the electric telescopic rod 10, avoiding skeleton position displacement caused by oblique pulling. After the second pull block 22 passes through the mounting hole 2, it rotates 90°, and its long side forms a surface contact with the lower wall of the support platform 1. The electric telescopic rod 10 retracts to generate a stable clamping force, completely solving the problem of part displacement when the pressure plate moves down in the background technology. When the operator pulls the sliding sleeve 11 with one hand, the attraction force of the permanent magnet ring 20 prevents the sliding sleeve 11 and the first pull block 19 from axial displacement, improving the efficiency of shaft insertion. When the electric telescopic rod 10 applies clamping force, the pressure sensor 21 feeds back data to the controller in real time to dynamically adjust the clamping force, avoiding overload damage to the skeleton or displacement caused by insufficient clamping.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixed support assembly for assembling and processing metal frames, characterized in that: The system includes a support platform (1), a controller, and a fixed base (3). The lower wall of the support platform (1) is provided with a support structure, and the upper wall of the support platform (1) is provided with multiple sets of mounting holes (2). The mounting holes (2) penetrate the body of the support platform (1) in the vertical direction. The mounting holes (2) are oblong in plan view. A pressure block (5) is engaged with the lower wall of the fixed base (3). The lower wall of the pressure block (5) is provided with a pressure groove that matches the cross-sectional shape of the metal frame. An anti-slip pad (6) is fixedly connected to the upper inner wall of the pressure groove. A sliding cavity (302) is provided on the lower wall of the fixed base (3) on both the left and right sides of the pressure block (5). A sliding rod (12) is slidably connected to the inner wall of the sliding cavity (302). The lower end of the sliding rod (12) passes through the lower inner wall of the sliding cavity (302) and extends to the lower wall of the fixed seat (3). A support block (4) is fixedly connected to the lower end of the sliding rod (12). The lower wall of the support block (4) is provided with a first magnetic attraction structure for magnetic fixation with the support platform (1). A limit block (13) is fixedly connected to the outer wall of one end of the sliding rod (12) inside the sliding cavity (302). An elastic structure for maintaining the sliding rod (12) in the pop-out state is provided between the upper wall of the limit block (13) and the upper inner wall of the sliding cavity (302). A pressing drive device for pressing the fixed seat (3) against the surface of the support platform (1) for fixing is rotatably connected to the top of the fixed seat (3). The pressing drive device includes The pressure plate (7) and two sets of electric telescopic rods (10) are provided. The pressure plate (7) is rotatably connected to the upper wall of the fixed base (3). The upper wall of the pressure plate (7) is provided with a horizontal detection structure for detecting its horizontal state. The two sets of electric telescopic rods (10) are slidably connected to the upper wall of the pressure plate (7) and are respectively close to the two ends of the length direction of the pressure plate (7). The lower end of the electric telescopic rod (10) is fixedly connected to the mounting block (9). The mounting block (9) and the pressure plate (7) are provided with an adjustment structure for conveniently adjusting the distance between the two sets of electric telescopic rods (10). The end of the electric telescopic rod (10) extends through the inner wall of the mounting block (9) and the inner wall of the pressure plate (7) and is fixedly connected to the first pull block (19). The outer wall of the first pull block (19) is slidably connected to a sliding sleeve (11). The diameter of the sliding sleeve (11) is smaller than the minimum inner diameter of the mounting hole (2). The lower end of the sliding sleeve (11) is fixedly connected to a second pull block (22). The top-view projection area of ​​the second pull block (22) is 0.8 times the top-view projection area of ​​the mounting hole (2). A second magnetic attraction structure is provided between the first pull block (19) and the sliding sleeve (11) to maintain their relative axial position. A pressure detection structure is provided on the inner upper wall of the sliding sleeve (11) to detect the pressure between the first pull block (19) and the inner upper wall of the sliding sleeve (11). A snap-fit ​​groove (301) is provided on the lower wall of the fixed seat (3). The pressure block (5) is snapped into the inner wall of the snap-fit ​​groove (301).

2. The fixed support assembly for metal frame assembly and processing according to claim 1, characterized in that: The support structure includes a base (23), a fixed tube (24), and a sliding tube (25). A rotating seat (27) is fixedly connected to the lower wall of the support platform (1). The sliding tube (25) is rotatably connected to the lower end of the rotating seat (27). The fixed tube (24) is slidably connected to the end of the sliding tube (25) away from the rotating seat (27). The base (23) is fixedly connected to the end of the fixed tube (24) away from the sliding tube (25). The inner wall of the sliding tube (25) is sequentially fixedly connected with first support plates (29) arranged vertically. The first support plate (29) is fixedly connected to the lower wall of the second support plate (29), and the end of the extension shaft of the drive motor (28) passes through the first support plate (29) and is fixedly connected to the lower wall of the support platform (1). The upper wall of the second support plate (30) is fixedly connected to two sets of hydraulic cylinders (26). The extension shafts of the two sets of hydraulic cylinders (26) pass through the second support plate (30) and are fixedly connected to the lower wall of the inner side of the fixed tube (24). The lower wall of the base (23) is fixedly connected to the bottom pad (2301).

3. The fixed support assembly for metal frame assembly and processing according to claim 2, characterized in that: The first magnetic suction structure includes two sets of electromagnetic chucks (15), which are respectively set on the lower wall of a support block (4). The lower wall of the electromagnetic chuck (15) is flush with the lower wall of the support block (4). The support platform (1) is made of magnetic material.

4. The fixed support assembly for metal frame assembly and processing according to claim 3, characterized in that: The second magnetic attraction structure is a permanent magnet ring (20), which is fixedly connected to the outer circumferential wall of the first pull block (19). The outer wall of the permanent magnet ring (20) is slidably connected to the inner wall of the sliding sleeve (11), which is made of magnetic material.

5. The fixed support assembly for metal frame assembly and processing according to claim 4, characterized in that: The elastic structure is a spring (14). The upper inner wall of the sliding cavity (302) is provided with a positioning boss (16). The spring (14) is located between the upper inner wall of the sliding cavity (302) and the upper wall of the limiting block (13). The upper end of the spring (14) is sleeved on the outer wall of the positioning boss (16), and the lower end of the spring (14) is sleeved on the outer wall of the sliding rod (12).

6. The fixed support assembly for metal frame assembly and processing according to claim 5, characterized in that: The level detection structure is a bubble level (8), which is fixedly connected to the upper wall of the pressure plate (7) and is located in the middle of the length direction of the pressure plate (7).

7. The fixed support assembly for metal frame assembly and processing according to claim 6, characterized in that: The adjustment structure includes two sets of guide blocks (901) and a first elongated groove (701). The two sets of guide blocks (901) are fixedly connected to the lower wall of the mounting block (9) in a front-to-back distribution. The two sets of first elongated grooves (701) are both set on the upper wall of the pressure plate (7) and are respectively close to both ends of the length direction of the pressure plate (7). A set of second elongated grooves (702) is respectively set on the inner wall of the pressure plate (7) and on the front and rear sides of the first elongated grooves (701). The two sets of guide blocks (901) on the lower wall of the mounting block (9) are slidably connected to the inner side wall of the second elongated groove (702). The length of the guide block (901) in the left-to-right direction is half the length of the second elongated groove (702) in the left-to-right direction. The outer wall of the extension shaft of the electric telescopic rod (10) is slidably connected to the inner side wall of the first elongated groove (701).

8. The fixed support assembly for metal frame assembly and processing according to claim 7, characterized in that: The pressure detection structure is a pressure sensor (21), which is located on the upper inner wall of the sliding sleeve (11).

9. The fixed support assembly for metal frame assembly and processing according to claim 8, characterized in that: The upper wall of the fixed base (3) is rotatably connected to a rotating column (17), and a pivot pin (18) is provided at the upper end of the rotating column (17). The pressure plate (7) is fixedly connected to the upper end of the pivot pin (18), and the central axis of the rotating column (17) is perpendicular to the central axis of the pressure groove of the pressure block (5).

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