High-layer high-space sandwich steel-concrete structure installation positioning and calibration clamp

Abstract

The application discloses a mounting, positioning and calibrating clamp for high-layer high-space steel-concrete sandwich structure, which comprises two base main frames, the top surfaces of the base main frames are symmetrically provided with two U-shaped frames in a sliding mode, the top surfaces of the U-shaped frames are provided with locking assemblies, the bottom surfaces of the U-shaped frames are provided with a plurality of sliding assemblies at the edges of both ends, the bottom surfaces of the sliding assemblies are fixedly connected with mounting frames, the side surfaces of the mounting frames are provided with clamping assemblies, and the bottom portions of the mounting frames are provided with two supporting assemblies. The application realizes the ground safety pre-adjustment and rigid locking of the plate width size, significantly reduces the safety risk of high-altitude operation, moves the width adjustment process to the ground (or a safe platform), avoids the mechanical slipping and the operation risk of personnel caused by the width adjustment under the high-altitude heavy load state, avoids the collision risk caused by the inertia being too large when the fine adjustment is performed by relying on a large crane, and realizes the safe and stable alignment of the joint depth of the sandwich plate.

Description

Technical Field

[0001] This invention relates to the field of building equipment technology, specifically to an installation, positioning, and calibration fixture for high-rise, high-space mezzanine steel-concrete structures. Background Technology

[0002] With the development of modern building technology, high-rise and high-space buildings (such as large industrial plants, high-speed railway stations, and large-span atriums) are increasingly adopting steel-concrete composite sandwich structures (such as reinforced concrete composite slabs and profiled steel sheet composite floor slabs). These structures are heavy, bulky, and often have fragile concrete edges.

[0003] Currently, when installing mezzanine structures at height, tower cranes are typically used to suspend the components to their approximate positions. Then, multiple workers use tools such as crowbars and chain hoists to manually pull and fine-tune the alignment. This traditional method of high-altitude operation relies on manual labor to forcibly push and pull heavy components, which is not only labor-intensive but also extremely prone to causing safety accidents such as personnel falling or components colliding. Summary of the Invention

[0004] The purpose of this invention is to provide an installation, positioning, and calibration fixture for high-rise, high-space mezzanine steel-concrete structures to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an installation, positioning, and calibration fixture for high-rise, high-space mezzanine steel-concrete structures, comprising two base main frames. Two U-shaped frames are symmetrically and slidably arranged on the top surface of the base main frames. A locking assembly is provided on the top surface of each U-shaped frame to lock the U-shaped frame and prevent sliding displacement during hoisting. The locking assembly includes a first hydraulic rod, a first pressure sensor, and a locking block. Multiple sliding components are provided at both ends of the bottom surface of the U-shaped frame. These sliding components reduce the frictional force of the U-shaped frame on the base, facilitating worker adjustment of the span between the two U-shaped frames. Each sliding component includes a concave... The U-shaped frame has grooves and ball bearings. Multiple sliders are fixedly connected to both ends of the bottom surface of the U-shaped frame. The bottom surfaces of the multiple sliders are fixedly connected to the mounting frame. The mounting frame has a clamping assembly on its side. The clamping assembly can flexibly and stably clamp the side of the steel-concrete component and provide automated longitudinal feeding power during high-altitude alignment. The clamping assembly includes two second hydraulic rods, two second pressure sensors, an L-shaped plate, a reduction motor, and clamping wheels. The bottom of the mounting frame has two support assemblies. The support assemblies provide low-resistance rolling support for the bottom of the component, support the weight of the mezzanine plate, and realize the smooth sliding of the component. The support assembly includes a connecting shaft, two bearings, and a rotating wheel.

[0006] Preferably, the first hydraulic rod is fixedly connected to the middle of the top surface of the U-shaped frame, the first pressure sensor is fixedly connected to the telescopic end of the first hydraulic rod, and the locking block includes an upper connecting rod and a lower wedge block, with the connecting rod fixedly connected to the bottom surface of the first pressure sensor.

[0007] Preferably, the groove is formed on the edge of the bottom surface of the U-shaped frame, the ball is disposed inside the groove, and two sliding grooves are formed at both ends of the top surface of the base main frame, with the bottom surface of the ball abutting against the sliding groove.

[0008] Preferably, the two second hydraulic rods are symmetrically distributed and fixedly connected to the outer side of the mounting frame, the two second pressure sensors are fixedly connected to the telescopic ends of the two second hydraulic rods, the L-shaped plate is fixedly connected to the sides of the two second pressure sensors, the reduction motor is fixedly connected to the top surface of the L-shaped plate, and the clamping wheel is fixedly connected to the output shaft of the reduction motor.

[0009] Preferably, the two bearings are fixedly connected to both ends of the connecting shaft, and the bottom end of the mounting bracket has multiple mounting slots symmetrically distributed. The two bearings are arranged inside the mounting slots, and the wheel is fixedly connected to one end of the connecting shaft.

[0010] Preferably, the top surface of the base frame has two first strip-shaped holes symmetrically distributed at both ends, and the upper ends of the plurality of sliders are disposed inside the first strip-shaped holes.

[0011] Preferably, a second strip-shaped hole is provided in the middle of the top surface of the base main frame, and the upper end connecting rod of the locking block is provided inside the second strip-shaped hole. Multiple locking grooves are provided in an array inside the second strip-shaped hole, and the locking grooves match the shape of the wedge-shaped block at the lower end of the locking block.

[0012] Preferably, a connecting frame is fixedly connected between the two base main frames, two baffles are fixedly connected to both ends of the base main frame, and two lifting rings are fixedly connected to both ends of the top surface of the base main frame.

[0013] The method for using installation, positioning, and calibration fixtures for high-rise, high-ceiling mezzanine reinforced concrete structures includes the following steps:

[0014] S1. Ground Pre-adjustment of Panel Width: On the ground or a safe working platform, the operator first adjusts the span of the U-shaped frame according to the actual width of the steel-concrete sandwich panel to be installed. During this process, the low-friction rolling of the balls in the sliding component within the base main frame's sliding groove, and the guidance of multiple sliders within the first strip hole, allow the mounting frame to be moved horizontally on the base main frame to a position matching the width of the sandwich panel. After the size adjustment is in place, the first hydraulic rod is activated to retract upwards, pushing the locking block upwards so that the wedge-shaped block at the lower end of the locking block inserts into the corresponding locking groove within the second strip hole of the base main frame. The horizontal mechanical self-locking force generated by the mutual compression of the wedge surfaces locks the panel in place. Simultaneously, the first pressure sensor monitors the locking force in real time, thereby completely locking the U-shaped frame and completing the determination of the fixture's spatial dimensions.

[0015] S2. Component support and placement: The end of the steel-concrete sandwich panel to be installed is smoothly sent into the inner side of the mounting frame of the fixture, so that the bottom of the steel-concrete sandwich panel is close to and placed on the roller of the support component, and the weight of the end of the sandwich panel is borne by the roller and the main frame of the base.

[0016] S3. Flexible clamping and damage prevention: After the sandwich panel is in place, the clamping assembly is activated, and the two second hydraulic rods extend inward simultaneously, pushing the L-shaped plate and causing the clamping wheels on it to move closer to the side of the steel-concrete sandwich panel; when the clamping wheels contact the sandwich panel components and begin to apply lateral compressive force, the second pressure sensor connected to the end of the second hydraulic rod feeds back the force value to the external control terminal in real time; when the control terminal determines that the pressure value has reached the preset safety threshold, the second hydraulic rod stops extending and enters the hydraulic pressure holding state, completing the safe and non-destructive clamping of the sandwich panel;

[0017] S4. Coarse and Fine Adjustment Alignment: After the component is securely clamped, the crane suspends the entire clamp to the construction and installation elevation via lifting ring 14. Through the crane's own slewing mechanism, the suspended steel-concrete sandwich panel is rotated in the air to align it with the installation splicing direction. Subsequently, without crane or manual intervention, the reduction motor on the top of the L-shaped panel is started, driving the clamping wheels to rotate slowly and smoothly. Since the steel-concrete sandwich panel is now firmly clamped by the side clamping wheels and the bottom rotating wheel, the rotational motion of the clamping wheels is converted into linear frictional pushing and pulling force on the side of the sandwich panel. By controlling the forward and reverse rotation and speed of the reduction motor, the steel-concrete sandwich panel is driven to slide smoothly forward or backward within the installation frame until it is aligned with the joint of the adjacent panel or steel beam, completing the final alignment and installation.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention achieves safe pre-adjustment and rigid locking of the panel width on the ground, significantly reducing the safety risks of high-altitude operations. This invention moves the width adjustment process to the ground (or a safety platform). By utilizing the rolling of the balls in the sliding assembly within the sliding groove, combined with the sliding guide of the slider by the first strip hole, workers can easily and frictionlessly adjust the clamp spacing to accommodate steel-concrete sandwich panels of different widths. After adjustment, the wedge block of the locking block is driven by the first hydraulic rod to press into the corresponding locking groove, forming a horizontal mechanical self-locking with strong pressure on the inclined surface. The locking force is confirmed to be up to standard by the first pressure sensor, ensuring that the spatial geometry of the clamp is rigidly fixed before overall hoisting and load-bearing, avoiding the mechanical slippage and personnel operation risks caused by width adjustment under heavy load at high altitudes.

[0020] 2. In use, this invention first uses the crane's slewing mechanism to rotate the sandwich panel in a wide range of spatial directions (coarse adjustment) to rotate it to a suitable approximate orientation. Then, the clamping wheel is driven to rotate by the geared motor. The clamping friction between the clamping wheel and the bottom rotating wheel on the panel is used to convert the rotational motion into a pushing and pulling force for the sandwich panel to slide longitudinally along the mounting frame (fine adjustment). This avoids the risk of collision caused by excessive inertia when relying on a large crane for fine adjustment, and achieves safe and stable alignment of the sandwich panel joint depth. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a partial structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the locking assembly structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the sliding component structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the clamping and support components of the present invention.

[0026] In the diagram: 1. Base main frame; 2. U-shaped frame; 3. Locking assembly; 31. First hydraulic rod; 32. First pressure sensor; 33. Locking block; 4. Sliding assembly; 41. Groove; 42. Ball bearing; 5. Slider; 6. Mounting bracket; 7. Clamping assembly; 71. Second hydraulic rod; 72. Second pressure sensor; 73. L-shaped plate; 74. Gear motor; 75. Clamping wheel; 8. Support assembly; 81. Connecting shaft; 82. Bearing; 83. Rotary wheel; 9. First strip hole; 10. Second strip hole; 11. Locking groove; 12. Connecting bracket; 13. Baffle; 14. Lifting ring. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-5 This invention provides a technical solution: an installation, positioning, and calibration fixture for a high-rise, high-space mezzanine steel-concrete structure, comprising two base main frames 1, which are integrally formed from high-strength carbon steel and possess extremely high bending section modulus to withstand heavy loads. Four U-shaped frames 2 are provided, with each pair of U-shaped frames 2 symmetrically distributed and slidably installed on the top surface of the base main frames 1. A locking assembly 3 is installed on the top surface of the U-shaped frames 2. After the span of the U-shaped frames 2 is adjusted, the locking assembly 3 locks the U-shaped frames 2 to prevent sliding displacement during hoisting. The locking assembly 3 includes a first hydraulic rod 31, a first pressure sensor 32, and a locking block 33. Multiple sliding components 4 are installed at both ends of the bottom surface of the U-shaped frames 2. The sliding components 4 reduce the frictional force of the U-shaped frames 2 on the base, facilitating worker adjustment. The span between the mounting brackets 6, the sliding assembly 4 includes a groove 41 and a ball bearing 42, multiple sliders 5 are bolted to both ends of the bottom surface of the U-shaped frame 2, the mounting bracket 6 is bolted to the bottom surface of the multiple sliders 5, the clamping assembly 7 is mounted on the side of the mounting bracket 6, the clamping assembly 7 can flexibly and firmly clamp the side of the steel-concrete component, and provide automated longitudinal feeding power during high-altitude alignment, the clamping assembly 7 includes two second hydraulic rods 71, two second pressure sensors 72, an L-shaped plate 73, a reduction motor 74, and clamping wheels 75, two support assemblies 8 are mounted at the bottom of the mounting bracket 6, the support assembly 8 provides low-resistance rolling support for the bottom of the component, supports the weight of the sandwich panel and realizes the smooth sliding of the component, the support assembly 8 includes a connecting shaft 81, two bearings 82, and a rotating wheel 83.

[0029] The first hydraulic rod 31 is bolted to the middle of the top surface of the U-shaped frame 2. The first hydraulic rod 31 is connected to an external hydraulic pump through a connecting pipe. The first pressure sensor 32 is threaded to the telescopic end of the first hydraulic rod 31. The first pressure sensor 32 is connected to an external controller through a wire. The first pressure sensor 32 monitors the resistance during locking in real time to prevent overload damage to the mechanical structure and ensure that the locking force reaches a safe threshold. The locking block 33 includes a connecting rod at the upper end and a wedge block at the lower end. The connecting rod is threaded to the bottom surface of the first pressure sensor 32. The locking block 33 performs the final mechanical locking. The inclined surface geometry generates a self-locking effect, converting the vertical downward pressure into a horizontal anti-shear and anti-slip force.

[0030] The groove 41 is formed on the bottom edge of the U-shaped frame 2. The ball bearing 42 is installed inside the groove 41. Two sliding grooves are formed at both ends of the top surface of the base main frame 1. The bottom surface of the ball bearing 42 abuts against the sliding groove. The ball bearing 42 is made of high carbon chromium bearing steel and the surface is carburized and quenched. It is wear-resistant and has high load-bearing capacity. The sliding groove provides a preset linear rolling track for the ball bearing 42 to ensure that it does not run off track when adjusting the width of the plate.

[0031] Two second hydraulic rods 71 ​​are symmetrically distributed and bolted to the outer side of the mounting bracket 6. The second hydraulic rods 71 ​​are connected to an external hydraulic pump through connecting pipes. Two second pressure sensors 72 are threaded to the telescopic ends of the two second hydraulic rods 71. The second pressure sensors 72 are connected to an external controller through wires. The second pressure sensors 72 monitor the clamping force in real time to protect the concrete at the edge of the steel-concrete sandwich panel from being crushed by excessive clamping force. The L-shaped plate 73 is bolted to the side of the two second pressure sensors 72. The geared motor 74 is bolted to the top surface of the L-shaped plate 73. The clamping wheel 75 is mounted on the output shaft of the geared motor 74 through a coupling. The clamping wheel 75 can drive the clamped component to produce longitudinal displacement through the friction between the outer ring and the side of the component.

[0032] Two bearings 82 are interference-fitted at both ends of the connecting shaft 81. Multiple mounting slots are symmetrically distributed at the bottom of the mounting bracket 6. The two bearings 82 are installed inside the mounting slots. The rotating wheel 83 is installed at one end of the connecting shaft 81 by a key. The rotating wheel 83 contacts the bottom surface of the steel-concrete component to support the weight and can roll with low resistance when the component is driven forward by the geared motor 74. The outer rings of the rotating wheel 83 and the clamping wheel 75 are covered with a flexible wear-resistant polyurethane layer, which provides friction while preventing scratches or indentations on the surface of the steel-concrete structure.

[0033] Two first strip holes 9 are symmetrically distributed at both ends of the top surface of the base main frame 1. The upper ends of multiple sliders 5 slide inside the first strip holes 9 to limit the movement trajectory of the U-shaped frame 2 and prevent it from deviating.

[0034] The second strip hole 10 is opened in the middle of the top surface of the base main frame 1. The upper end connecting rod of the locking block 33 slides inside the second strip hole 10. Multiple locking grooves 11 are arranged in an array inside the second strip hole 10. The locking grooves 11 match the shape of the wedge block at the lower end of the locking block 33. The locking grooves 11 act as physical bayonets and are tightly engaged with the wedge block 33.

[0035] The connecting frame 12 is bolted between the two base main frames 1. The two baffles 13 are bolted to both ends of the base main frame 1. The baffles 13 prevent the U-shaped frame 2 from sliding out of the base main frame 1 during adjustment. The two lifting rings 14 are threaded to both ends of the top surface of the base main frame 1. The lifting rings 14 provide a force-bearing lifting point for connection with the hook of the aerial crane.

[0036] Working principle: When using this invention, according to the specific width of the steel-concrete sandwich panel to be installed, the worker slides the U-shaped frame 2 to the corresponding span position on the ground. Relying on the low friction rolling of the ball bearings 42 in the sliding component 4 in the sliding groove, the worker can easily drive the entire mounting frame 6 to move laterally along the first strip hole 9 on the base main frame 1. After confirming that the dimensions are correct, the first hydraulic rod 31 is activated to retract upward, driving the locking block 33 to move upward. The wedge-shaped block at the lower end of the locking block 33 is accurately inserted into the corresponding locking groove 11 on the base main frame 1. The wedge-shaped surfaces squeeze each other to generate a strong horizontal mechanical self-locking force, completely locking the lateral movement of the U-shaped frame 2. At the same time, after the first pressure sensor 32 detects that the downward locking force has reached the standard, the controller controls the first hydraulic rod 31 to stop extending and enter the pressure holding state to complete the locking.

[0037] After the clamp is locked and shaped, the end of the steel-concrete sandwich panel to be installed is sent into the inner side of the mounting frame 6 of the clamp, so that its bottom is placed stably on the rotating wheel 83 of the support component 8, and the clamp bears the weight of the end.

[0038] When the clamping assembly 7 is activated, the two second hydraulic rods 71 ​​extend synchronously, pushing the L-shaped plate 73 and the clamping wheel 75 toward the side of the reinforced concrete component. When the clamping wheel 75 contacts the side wall of the component and begins to apply compressive force, the second pressure sensor 72 feeds back the force value to the control end in real time. When the pressure reaches the preset threshold that can ensure sufficient frictional clamping force without crushing the concrete at the edge of the component, the controller cuts off the power, the second hydraulic rods 71 ​​stop extending and enter the pressure holding state.

[0039] After the component is securely clamped, the crane first suspends the entire clamp to the construction and installation elevation via the lifting ring 14. Then, through the crane's own slewing mechanism, the steel-concrete sandwich panel is rotated horizontally in the air to the correct assembly direction. Subsequently, without manual pulling, the reduction motor 74 is started, driving the clamping wheel 75 to rotate slowly. Since the component is securely clamped by the side clamping wheel 75 and the bottom rotating wheel 83, the rotational motion of the clamping wheel 75 is efficiently converted into a linear friction driving force on the side of the component, allowing the heavy steel-concrete component to slide smoothly and uniformly forward or backward within the installation frame 6, completing the fine adjustment and alignment of the sandwich panel.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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. An installation, positioning, and calibration fixture for high-rise, high-space mezzanine steel-concrete structures, comprising two base main frames (1), characterized in that: The base main frame (1) has two U-shaped frames (2) symmetrically distributed and slidingly arranged on its top surface. The top surface of the U-shaped frames (2) is provided with a locking assembly (3) to lock the U-shaped frames (2) and prevent sliding displacement during hoisting. The locking assembly (3) includes a first hydraulic rod (31), a first pressure sensor (32), and a locking block (33). Multiple sliding assemblies (4) are provided at both ends of the bottom surface of the U-shaped frames (2). The sliding assemblies (4) can reduce the friction of the U-shaped frames (2) on the base and facilitate workers to adjust the span between the two U-shaped frames (2). The sliding assemblies (4) include grooves (41) and balls (42). Multiple sliders (5) are fixedly connected to both ends of the bottom surface of the U-shaped frames (2). A mounting frame (6) is fixedly connected to the bottom surface of multiple sliders (5). A clamping assembly (7) is provided on the side of the mounting frame (6). The clamping assembly (7) can flexibly and stably clamp the side of the steel-concrete component and provide automated longitudinal feeding power when aligning at high altitude. The clamping assembly (7) includes two second hydraulic rods (71), two second pressure sensors (72), an L-shaped plate (73), a reduction motor (74), and a clamping wheel (75). Two support assemblies (8) are provided at the bottom of the mounting frame (6). The support assemblies (8) provide low-resistance rolling support for the bottom of the component, support the weight of the sandwich panel and realize the smooth sliding of the component. The support assembly (8) includes a connecting shaft (81), two bearings (82), and a rotating wheel (83).

2. The installation, positioning, and calibration fixture for high-rise, high-space mezzanine reinforced concrete structures according to claim 1, characterized in that: The first hydraulic rod (31) is fixedly connected to the middle of the top surface of the U-shaped frame (2), the first pressure sensor (32) is fixedly connected to the telescopic end of the first hydraulic rod (31), the locking block (33) includes a connecting rod at the upper end and a wedge block at the lower end, and the connecting rod is fixedly connected to the bottom surface of the first pressure sensor (32).

3. The installation, positioning, and calibration fixture for high-rise, high-space mezzanine reinforced concrete structures according to claim 1, characterized in that: The groove (41) is opened on the bottom edge of the U-shaped frame (2), the ball (42) is set inside the groove (41), and two sliding grooves are opened at both ends of the top surface of the base main frame (1), and the bottom surface of the ball (42) abuts against the sliding groove.

4. The installation, positioning, and calibration fixture for high-rise, high-space mezzanine reinforced concrete structures according to claim 1, characterized in that: Two second hydraulic rods (71) are symmetrically distributed and fixedly connected to the outer side of the mounting bracket (6). Two second pressure sensors (72) are fixedly connected to the telescopic ends of the two second hydraulic rods (71). The L-shaped plate (73) is fixedly connected to the side of the two second pressure sensors (72). The geared motor (74) is fixedly connected to the top surface of the L-shaped plate (73). The clamping wheel (75) is fixedly connected to the output shaft of the geared motor (74).

5. The installation, positioning, and calibration fixture for high-rise, high-space mezzanine reinforced concrete structures according to claim 1, characterized in that: Two bearings (82) are fixedly connected to both ends of the connecting shaft (81). The bottom end of the mounting bracket (6) is symmetrically provided with multiple mounting slots. The two bearings (82) are set inside the mounting slots. The wheel (83) is fixedly connected to one end of the connecting shaft (81).

6. The installation, positioning, and calibration fixture for high-rise, high-space mezzanine reinforced concrete structures according to claim 1, characterized in that: The base frame (1) has two first strip holes (9) symmetrically distributed at both ends of its top surface, and the upper ends of the multiple sliders (5) are located inside the first strip holes (9).

7. The installation, positioning, and calibration fixture for high-rise, high-space mezzanine steel-concrete structures according to claim 1, characterized in that: The base main frame (1) has a second strip hole (10) in the middle of its top surface. The upper connecting rod of the locking block (33) is located inside the second strip hole (10). Multiple locking grooves (11) are arranged in an array inside the second strip hole (10). The locking grooves (11) match the shape of the wedge block at the lower end of the locking block (33).

8. The installation, positioning, and calibration fixture for high-rise, high-space mezzanine steel-concrete structures according to claim 1, characterized in that: A connecting frame (12) is fixedly connected between the two base main frames (1), two baffles (13) are fixedly connected at both ends of the base main frame (1), and two lifting rings (14) are fixedly connected at both ends of the top surface of the base main frame (1).

9. A method of using an installation, positioning, and calibration fixture for a high-rise, high-space mezzanine steel-concrete structure according to any one of claims 1-8, characterized in that, Includes the following steps: S1. Ground pre-adjustment of plate width: On the ground or a safe working platform, the operator first pushes the U-shaped frame (2) to adjust the span according to the actual width of the steel-concrete sandwich panel to be installed. During this process, the ball (42) in the sliding component (4) rolls in the groove of the base main frame (1) with low friction, and multiple sliders (5) are guided in the first strip hole (9) to make the mounting frame (6) move on the base main frame (1) to a position that matches the width of the sandwich panel. After the size adjustment is in place, the first hydraulic rod (31) is started to retract upward, pushing the locking block (33) to move upward, so that the wedge block at the lower end of the locking block (33) is inserted into the corresponding locking groove (11) in the second strip hole (10) of the base main frame (1). The horizontal mechanical self-locking force is generated by the mutual squeezing of the wedge surfaces to lock. At the same time, the first pressure sensor (32) monitors the locking force in real time, thereby completely locking the U-shaped frame (2) and completing the setting of the fixture space size. S2, Component support and placement: The end of the steel-concrete sandwich panel to be installed is smoothly sent into the inner side of the mounting frame (6) of the fixture, so that the bottom of the steel-concrete sandwich panel is close to and placed on the roller (83) of the support component (8), and the roller (83) and the base main frame (1) bear the weight of the end of the sandwich panel. S3, Flexible clamping to prevent damage: After the sandwich panel is in place, the clamping assembly (7) is activated, and the two second hydraulic rods (71) extend inward simultaneously, pushing the L-shaped plate (73) and driving the clamping wheel (75) on it to approach the side of the steel-concrete sandwich panel; when the clamping wheel (75) contacts the sandwich panel component and begins to apply lateral extrusion force, the second pressure sensor (72) connected to the end of the second hydraulic rod (71) feeds back the force value to the external control terminal in real time; when the control terminal determines that the pressure value reaches the preset safety threshold, the second hydraulic rod (71) stops extending and enters the hydraulic pressure holding state, completing the safe and non-destructive clamping of the sandwich panel; S4. Coarse and fine alignment: After the component is safely clamped, the crane suspends the entire clamp to the construction and installation elevation through the lifting ring 14. The crane's own slewing mechanism rotates the suspended steel-concrete sandwich panel in the air to align it with the installation splicing direction. Then, without the need for crane or manual pushing and pulling intervention, the geared motor (74) on the top of the L-shaped panel (73) is started. The geared motor (74) drives the clamping wheel (75) to rotate slowly and smoothly. Since the steel-concrete sandwich panel is now firmly clamped by the side clamping wheel (75) and the bottom rotating wheel (83), the rotational motion of the clamping wheel (75) is converted into a linear frictional pushing and pulling force on the side of the sandwich panel. By controlling the forward and reverse rotation and speed of the geared motor (74), the steel-concrete sandwich panel is driven to slide forward or backward smoothly in the installation frame (6) until it is aligned with the adjacent plate or steel beam splice, completing the final alignment installation.

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