Positioning device and positioning method for assembled building construction

Abstract

The present invention relates to the technical field of building engineering, and discloses a positioning device for prefabricated building construction, the positioning device comprising: a support mechanism for supporting a prefabricated wall panel, the support mechanism comprising a clamping assembly and a sliding assembly symmetrically arranged on both sides of the prefabricated wall panel, the clamping assembly being used to clamp and position the prefabricated wall panel, and the sliding assembly being used to adjust the position of the clamping assembly; a detection module comprising a collection unit and an analysis unit, the collection unit being used to collect state parameters of the positioned prefabricated wall panel, the analysis unit being used to analyze the state parameters, and performing a quality evaluation on the positioning state of the prefabricated wall panel based on the analysis; and a control module being used to generate a control strategy for the clamping assembly based on the evaluation result of the quality evaluation, and execute the control strategy. The present invention avoids the violent shaking and tipping of the prefabricated wall panel during hoisting, and improves the safety of the installation of the prefabricated wall panel.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a positioning device and a positioning method for assembled building construction. Background Art

[0002] Prefabricated buildings are a modern construction method, and their core feature is that they transfer a large number of on-site operations in traditional construction methods to factories. Specifically, prefabricated buildings are buildings that are processed and manufactured in factories (such as floor slabs, wall panels, stairs, balconies, etc.), then transported to the construction site, and assembled and installed on site through reliable connection methods.

[0003] The positioning and hoisting of prefabricated wall panels is an important part of prefabricated building construction. When installing wall panels in the existing technology, it is necessary to manually align the prefabricated wall panels with the floor slabs and then assemble them. During the operation, the prefabricated wall panels are prone to violent shaking due to being in a suspended state, so there is a great safety hazard. Summary of the invention

[0004] The purpose of the present invention is to provide a positioning device and a positioning method for prefabricated building construction to solve the above technical problems:

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A positioning device for prefabricated building construction, the positioning device comprising: a support mechanism for supporting a prefabricated wall panel, the support mechanism comprising a clamping assembly and a sliding assembly symmetrically arranged on both sides of the prefabricated wall panel, the clamping assembly being used to clamp and position the prefabricated wall panel, and the sliding assembly being used to adjust the position of the clamping assembly; a detection module comprising a collection unit and an analysis unit, the collection unit being used to collect state parameters of a positioned prefabricated wall panel, the analysis unit being used to analyze the state parameters and perform a quality evaluation on the positioning state of the prefabricated wall panel based on the analysis; and a control module being used to generate a control strategy for the clamping assembly based on an evaluation result of the quality evaluation and execute the control strategy. Through the above technical scheme, this embodiment provides a positioning device for prefabricated building construction, which can clamp and position the prefabricated wall panels through the setting of the clamping assembly. Specifically, during the hoisting process of the prefabricated wall panels, the clamping effect of the clamping assembly can realize the positioning of the prefabricated wall panels, and the clamping assembly can also play a supporting role for the prefabricated wall panels in the open state, avoiding the wall panels from shaking or tipping violently, thereby greatly improving the safety of the prefabricated wall panel hoisting. In addition, through the coordinated setting of the monitoring module and the control module, after the prefabricated wall panels are initially positioned and placed, the state of the prefabricated wall panels can be calibrated in time. After the calibration is completed, the prefabricated wall panels are subsequently temporarily fixed and welded. And through the setting of the sliding assembly, the clamping assembly can be slid and evacuated to the position where other prefabricated wall panels are to be installed after the above work is completed, so the equipment can realize the positioning and installation of multiple prefabricated wall panels.

[0007] As a further technical solution, the clamping assembly includes:

[0008] A mounting plate, with a first rotating support and a second rotating support respectively mounted on both ends of the mounting plate;

[0009] A clamping plate, the lower end of which is rotatably mounted on the first rotating support, and a hinge support is fixedly mounted on one side of the clamping plate away from the prefabricated wall panel;

[0010] A hydraulic push rod, wherein the fixed end of the hydraulic push rod is rotatably mounted on the second rotating support, and the telescopic end of the hydraulic push rod is hinged on the hinge support.

[0011] As a further technical solution, a square groove is provided on the side wall of the clamping plate, and a plurality of rollers are rotatably installed in the square groove, and the axes of the rollers are parallel to the horizontal plane.

[0012] As a further technical solution, a baffle is fixedly installed on a side of the first rotating support close to the second rotating support, and an elastic gasket is fixedly installed on a side of the baffle close to the clamping plate.

[0013] As a further technical solution, the sliding assembly includes:

[0014] Guide bars, which are arranged on both sides of the position where the prefabricated wall panels are to be installed, and on which sliding grooves are provided;

[0015] A slider, the slider is slidably mounted in the slide groove, and one end of the mounting plate close to the first rotating support is fixedly mounted on the slider;

[0016] A servo motor, wherein the servo motor is fixedly mounted on one end of the guide bar, wherein the output end of the servo motor is transmission-connected with a threaded rod, wherein the threaded rod penetrates the slider and is threadedly connected to the slider;

[0017] A roller is mounted on one end of the mounting plate close to the second rotating support.

[0018] As a further technical solution, the positioning device further includes a dust removal mechanism, and the dust removal mechanism includes:

[0019] A bracket, wherein the bracket is fixedly mounted on a side wall of the first rotating support;

[0020] A rotating shaft is rotatably mounted on the bracket, and the axis of the rotating shaft is perpendicular to the guide bar, and bristles are arranged on the side wall of the rotating shaft.

[0021] As a further technical solution, the dust removal mechanism further includes:

[0022] A rack, the rack being fixedly mounted on the upper edge of the guide bar;

[0023] A first gear, the first gear is rotatably mounted on the bracket and meshes with the rack;

[0024] The second gear is fixedly mounted on the rotating shaft and meshes with the first gear.

[0025] As a further technical solution, the acquisition unit includes an angle sensor, which is installed on the second rotating support and is used to acquire elevation data of the hydraulic push rod relative to the horizontal plane.

[0026] A positioning method for prefabricated building construction, the method comprising the following steps:

[0027] Step 1: Install the guide strip on the upper end of the floor slab according to the installation position requirements of the prefabricated wall panels;

[0028] Step 2: Lift the prefabricated wall panel so that the mounting plate is leaning against one of the clamping plates;

[0029] Step 3: After confirming the release position of the installation plate, drive the hydraulic push rod to clamp the precast wall panel with two clamping plates, and at the same time release the suspension line to make the precast wall panel land on the ground;

[0030] Step 4: Use the monitoring module to conduct a quality evaluation of the positioning status of the precast wall panel;

[0031] Step 5: Generate a control strategy for the clamping assembly according to the quality evaluation result.

[0032] As a further technical solution, the process of conducting a quality evaluation of the positioning status of the precast wall panel includes:

[0033] Obtain the elevation angle deviation value P of the hydraulic push rod by calculating with the formula ;

[0034] where θ is the elevation angle of the hydraulic push rod; h is the distance from the hinge support along the clamping plate surface to the installation plate; d is the distance between the first rotating support and the second rotating support;

[0035] Compare the elevation angle deviation value P with the preset threshold range [P1, P2]:

[0036] If P ∈ [P1, P2], do not adjust the hydraulic push rod;

[0037] If P < P1, drive the hydraulic push rod to slowly extend until P ∈ [P1, P2];

[0038] If P > P2, drive the hydraulic push rod to slowly contract until P ∈ [P1, P2].

[0039] Advantages of the present invention:

[0040] (1) The present invention provides a positioning device for the construction of prefabricated buildings. Through the setting of the clamping assembly, the precast wall panel can be clamped and positioned. Specifically, during the hoisting process of the precast wall panel, through the clamping action of the clamping assembly, the positioning of the precast wall panel can be realized, and the clamping assembly can also support the precast wall panel in the open state, avoiding the violent shaking and toppling of the precast wall panel during hoisting and improving the safety of the installation of the precast wall panel.

[0041] (2) With the coordinated setting of the monitoring module and the control module in the technical solution provided by the present invention, after the preliminary positioning and placement of the precast wall panel are completed, the state of the precast wall panel can be calibrated in a timely manner, improving the accuracy and efficiency of the assembly construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below with reference to the accompanying drawings.

[0043] Figure 1It is a schematic diagram of the overall three-dimensional structure of the positioning equipment for assembled building construction in the present invention;

[0044] Figure 2 A schematic diagram of the structure of the clamping assembly in the present invention;

[0045] Figure 3 Figure 1 of the present invention Figure 1 Schematic diagram of the local structure at A in the middle;

[0046] Figure 4 A schematic diagram of a state in which the clamping assembly is in an opening stage and supports the prefabricated wall panel;

[0047] Figure 5 A schematic diagram of the state after the clamping assembly completes the positioning of the prefabricated wall panel;

[0048] Figure 6 The figure is a flow chart of the positioning method for prefabricated building construction in the present invention.

[0049] Description of reference numerals:

[0050] 1. Prefabricated wall panel; 2. Clamping assembly; 3. Sliding assembly; 4. Dust removal mechanism; 11. Mounting plate; 12. First rotating support; 13. Second rotating support; 14. Clamping plate; 15. Hydraulic push rod; 16. Hinge support; 141. Square groove; 142. Roller; 121. Baffle; 122. Elastic gasket; 21. Guide strip; 22. Slider; 23. Roller; 24. Threaded rod; 41. Bracket; 42. Brush; 43. First gear; 44. Second gear; 45. Rack. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1As shown, a positioning device for prefabricated building construction, the positioning device comprises: a support mechanism for supporting a prefabricated wall panel 1, the support mechanism comprising a clamping assembly 2 and a sliding assembly 3 symmetrically arranged on both sides of the prefabricated wall panel 1, the clamping assembly 2 is used to clamp and position the prefabricated wall panel 1, and the sliding assembly 3 is used to adjust the position of the clamping assembly 2. A detection module comprises a collection unit and an analysis unit, the collection unit is used to collect state parameters of the prefabricated wall panel 1 that is positioned and placed, the analysis unit is used to analyze the state parameters, and perform quality evaluation on the positioning state of the prefabricated wall panel 1 based on the analysis. A control module is used to generate a control strategy for the clamping assembly 2 based on the evaluation result of the quality evaluation, and execute the control strategy.

[0053] Through the above technical scheme, this embodiment provides a positioning device for prefabricated building construction, which can clamp and position the prefabricated wall panel 1 through the setting of the clamping component 2. Specifically, during the hoisting process of the prefabricated wall panel 1, the clamping effect of the clamping component 2 can realize the positioning of the prefabricated wall panel 1, and the clamping component 2 can also support the prefabricated wall panel 1 in the open state, avoiding the wall panel from shaking or tipping violently, thereby greatly improving the safety of the hoisting of the prefabricated wall panel 1. In addition, through the coordinated setting of the monitoring module and the control module, after the prefabricated wall panel 1 is initially positioned and placed, the state of the prefabricated wall panel 1 can be calibrated in time. After the calibration is completed, the prefabricated wall panel 1 is subsequently temporarily fixed by using two long and short oblique supports to temporarily fix the prefabricated wall panel 1 to prevent the wall panel from tilting or shifting and welding the iron embedded parts on the prefabricated wall panel 1 and the embedded parts on the structural wall or between the partition boards with connecting steel plates. By setting the sliding component 3, the clamping component 2 can be slid and withdrawn to the position where other prefabricated wall panels 1 are to be installed after the above work is completed, so the equipment can realize the positioning and installation of multiple prefabricated wall panels 1.

[0054] See also Figure 2 As shown, the clamping assembly 2 includes:

[0055] A mounting plate 11, with a first rotating support 12 and a second rotating support 13 respectively mounted on both ends of the mounting plate 11;

[0056] A clamping plate 14, the lower end of which is rotatably mounted on the first rotating support 12, and a hinge support 16 is fixedly mounted on a side of the clamping plate 14 away from the prefabricated wall panel 1;

[0057] A hydraulic push rod 15 , wherein the fixed end of the hydraulic push rod 15 is rotatably mounted on the second rotating support 13 , and the telescopic end of the hydraulic push rod 15 is hinged on the hinge support 16 .

[0058] Through the above technical scheme, this embodiment provides a specific structure of the clamping assembly 2, wherein the upper surfaces of the mounting plates 11 on both sides of the prefabricated wall panel 1 are horizontal and are both installed with the first rotating support 12 and the second rotating support 13. The hydraulic push on both sides of the prefabricated wall panel 1 pushes the two clamping plates 14 respectively to achieve the clamping and positioning of the prefabricated wall panel 1. It should be noted that the hydraulic push rod 15 can be driven by an electric motor, and the electric motor is controlled by the control module. When the two clamping plates 14 are in an open state, the prefabricated wall panel 1 can lean against one of the clamping plates 14. At this time, the gap between the lower ends of the two clamping plates 14 is narrower than the thickness of the prefabricated wall panel 1, so temporary support for the prefabricated wall panel 1 can be achieved. After the staff completes the alignment check of the reserved holes and the steel bars at the lower end of the prefabricated wall panel 1, the clamping plates 14 are used in conjunction with the hanging wire to position, clamp and release the prefabricated wall panel 1.

[0059] See also Figure 2 As shown, a square groove 141 is formed on the side wall of the clamping plate 14 , and a plurality of rollers 142 are rotatably mounted in the square groove 141 , and the axes of the rollers 142 are parallel to the horizontal plane.

[0060] Through the above technical solution, when the two clamping plates 14 clamp the prefabricated wall panels 1, due to the setting of the rollers 142, the clamping plates 14 will not restrict the up and down movement of the prefabricated wall panels 1, thereby facilitating the release of the prefabricated wall panels 1.

[0061] See also Figure 2 , 3 As shown, a baffle 121 is fixedly installed on one side of the first rotating support 12 close to the second rotating support 13, and an elastic gasket 122 is fixedly installed on one side of the baffle 121 close to the clamping plate 14. The above technical solution limits the clamping plate 14 by setting the baffle 121, and the elastic gasket 122 plays a buffering role in the process of clamping the prefabricated wall panel 1.

[0062] See also Figure 3 As shown, the sliding assembly 3 includes:

[0063] Guide bars 21, which are arranged on both sides of the position where the prefabricated wall panel 1 is to be installed, and the guide bars 21 are provided with sliding grooves;

[0064] A slider 22, wherein the slider 22 is slidably mounted in the slide groove, and one end of the mounting plate 11 close to the first rotating support 12 is fixedly mounted on the slider 22;

[0065] A servo motor, the servo motor is fixedly mounted on one end of the guide bar 21, the output end of the servo motor is drivingly connected to a threaded rod 24, the threaded rod 24 passes through the slider 22 and is threadedly connected to the slider 22;

[0066] The roller 23 is mounted on one end of the mounting plate 11 close to the second rotating support 13 . The roller 23 supports the second rotating support 13 and facilitates the position adjustment of the mounting plate 11 along the guide bar 21 .

[0067] Through the above technical solution, this embodiment provides a specific structure of the sliding assembly 3. When the position of the clamping assembly 2 needs to be adjusted, the servo motor drives the slider 22 to slide along the slide groove, so that the clamping assembly 2 can assist in positioning and installing different prefabricated wall panels 1. In addition, the threaded rod 24 is threadedly connected to the slider 22, so that the position can be locked after the position of the clamping assembly 2 is adjusted.

[0068] See also Figure 3 As shown, the positioning device further includes a dust removal mechanism 4, and the dust removal mechanism 4 includes:

[0069] A bracket 41, wherein the bracket 41 is fixedly mounted on a side wall of the first rotating support 12;

[0070] A rotating shaft is rotatably mounted on the bracket 41 , and the axis of the rotating shaft is perpendicular to the guide bar 21 , and bristles 42 are arranged on the side wall of the rotating shaft.

[0071] Through the above technical solution, this embodiment provides a specific structure of the dust removal mechanism 4, the shaft can be driven by a motor, and as the shaft rotates, the surface of the prefabricated wall panel 1 to be installed can be cleaned by the bristles 42 to prevent stones and dust from affecting the vertical installation of the prefabricated wall panel 1. It should also be noted that the height of the shaft must be higher than the height of the steel bars on the ground to prevent the steel bars from touching the shaft and causing the position of the clamping assembly 2 to be unable to be adjusted, and the bristles 42 are made of flexible material, and the ends of the bristles 42 need to touch the ground to complete the cleaning and dust removal effect.

[0072] See also Figure 3 As shown, the dust removal mechanism 4 also includes:

[0073] A rack 45, the rack 45 is fixedly mounted on the upper edge of the guide bar 21;

[0074] A first gear 43, wherein the first gear 43 is rotatably mounted on the bracket 41, and the first gear 43 is meshed with the rack 45;

[0075] The second gear 44 is fixedly mounted on the rotating shaft, and the second gear 44 is meshed with the first gear 43 .

[0076] Through the above technical scheme, this embodiment provides a driving structure of the dust removal mechanism 4. When the position of the clamping assembly 2 is adjusted, the slider 22 slides along the slide groove on the guide bar 21, and the first gear 43 rotates under the meshing action of the rack 45, and the second gear 44 drives the rotating shaft to rotate. Since the first gear 43 and the second gear 44 rotate in opposite directions, the bristles 42 rotating with the rotating shaft can clean the dust particles at the installation position of other prefabricated wall panels 1 to be installed to the side away from the prefabricated wall panels 1 that have been positioned and installed.

[0077] As a further technical solution, the acquisition unit includes an angle sensor, which is installed on the second rotating support 13 and is used to acquire elevation data of the hydraulic push rod 15 relative to the horizontal plane.

[0078] See also Figure 6 As shown, a positioning method for prefabricated building construction, the method comprises the following steps:

[0079] Step 1: Install the guide strip 21 on the upper end of the floor slab according to the installation position requirements of the prefabricated wall panel 1;

[0080] Step 2: Lift the prefabricated wall panel 1 so that the mounting plate 11 leans against one of the clamping plates 14;

[0081] Step 3: After confirming the release position of the mounting plate 11, drive the hydraulic push rod 15 to clamp the prefabricated wall panel 1 through the two clamping plates 14, and at the same time release the hanging wire to make the prefabricated wall panel 1 fall to the ground;

[0082] Step 4: Performing a quality evaluation on the positioning status of the prefabricated wall panel 1 through a monitoring module;

[0083] Step 5: Generate a control strategy for the clamping component 2 based on the quality evaluation result.

[0084] Through the above technical solution, this embodiment provides a positioning method for prefabricated building construction. Specifically, first, according to the installation position requirements of the prefabricated wall panel 1, specifically according to the design drawings, the reference line for the wall panel installation can be popped up on the ground to form a reserved area to be installed. After ensuring that the reference line is accurate, an accurate position reference is provided for the wall panel installation, and the guide strips 21 are installed on both sides of the reserved area to be installed of the prefabricated wall panel 1. Then the prefabricated wall panel 1 is lifted so that the installation plate 11 is tilted against one of the clamping plates 14. In this process, the clamping blocks on both sides of the prefabricated wall panel 1 are in an open state, such as Figure 4 As shown, it can provide support for the prefabricated wall panel 1. After confirming the loose position of the mounting plate 11, the hydraulic push rod 15 is driven to clamp the prefabricated wall panel 1 through two clamping plates 14. Figure 5As shown, release the suspension line simultaneously to let the precast wall panel 1 land on the ground. Finally, the monitoring module conducts a quality evaluation on the positioning state of the precast wall panel 1, and generates a control strategy for the clamping assembly 2 according to the quality evaluation result. Therefore, the state of the wall panel can be calibrated in time after the precast wall panel 1 is positioned and installed, ensuring that the precast wall panel 1 meets the requirements of vertical installation.

[0085] The process of conducting a quality evaluation on the positioning state of the precast wall panel 1 includes:

[0086] Through the formula Calculate to obtain the elevation angle deviation value P of the hydraulic push rod 15;

[0087] Among them, θ is the elevation angle degree of the hydraulic push rod 15; h is the distance from the hinge support 16 along the surface of the clamping plate 14 to the mounting plate 11; d is the distance between the first rotating support 12 and the second rotating support 13;

[0088] Compare the elevation angle deviation value P with the preset threshold range [P1, P2]:

[0089] If P ∈ [P1, P2], then do not adjust the hydraulic push rod 15;

[0090] If P < P1, then drive the hydraulic push rod 15 to slowly extend until P ∈ [P1, P2] is satisfied;

[0091] If P > P2, then drive the hydraulic push rod 15 to slowly contract until P ∈ [P1, P2] is satisfied.

[0092] Through the above technical solution, this embodiment provides a process for conducting a quality evaluation on the positioning state of the precast wall panel 1. Specifically, first through the formula Calculate to obtain the elevation angle deviation value P of the hydraulic push rod 15. If the deviation value is zero, it means that the threshold wall panel is just perpendicular to the ground. In the formula, θ is the elevation angle degree of the hydraulic push rod 15; h is the distance from the hinge support 16 along the surface of the clamping plate 14 to the mounting plate 11, and d is the distance between the first rotating support 12 and the second rotating support 13. The above distances can be measured through experiments. It can be seen from the formula that when the elevation angle deviation value P is small, it means that the precast wall panel 1 is inclined towards the side close to the hydraulic push rod 15. On the contrary, when the elevation angle deviation value P is large, it indicates that the precast wall panel 1 is inclined towards the side away from the hydraulic push rod 15. Therefore, after obtaining the elevation angle deviation value P, compare the elevation angle deviation value P with the preset threshold range [P1, P2]: If P ∈ [P1, P2], then the hydraulic push rod 15 is not adjusted; if P < P1, then drive the hydraulic push rod 15 to slowly extend until P ∈ [P1, P2] is satisfied; if P > P2, then drive the hydraulic push rod 15 to slowly contract until P ∈ [P1, P2] is satisfied. It should be noted that the preset threshold range [P1, P2] can be obtained by combining the assembly construction requirements and experimental data, indicating the allowable error range of the elevation angle deviation value P. This range is specifically related to the rigidity of the equipment materials and will not be elaborated here.

[0093] The above has described an embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A positioning device for assembled building construction, characterized in that: The positioning device comprises: A support mechanism, used for supporting a prefabricated wall panel (1), the support mechanism comprising a clamping assembly (2) and a sliding assembly (3) symmetrically arranged on both sides of the prefabricated wall panel (1), the clamping assembly (2) being used for clamping and positioning the prefabricated wall panel (1), and the sliding assembly (3) being used for adjusting the position of the clamping assembly (2); The detection module comprises a collection unit and an analysis unit, wherein the collection unit is used to collect state parameters of the positioned prefabricated wall panel (1), and the analysis unit is used to analyze the state parameters and perform a quality evaluation on the positioning state of the prefabricated wall panel (1) based on the analysis; A control module, used for generating a control strategy for the clamping component (2) according to the evaluation result of the quality evaluation, and executing the control strategy; The clamping assembly (2) comprises: A mounting plate (11), wherein a first rotating support (12) and a second rotating support (13) are respectively mounted on both ends of the mounting plate (11); A clamping plate (14), the lower end of which is rotatably mounted on the first rotating support (12), and a hinge support (16) is fixedly mounted on a side of the clamping plate (14) away from the prefabricated wall panel (1); A hydraulic push rod (15), wherein the fixed end of the hydraulic push rod (15) is rotatably mounted on the second rotating support (13), and the telescopic end of the hydraulic push rod (15) is hinged on the hinge support (16); The sliding assembly (3) comprises: Guide strips (21), the guide strips (21) being arranged on both sides of the position where the prefabricated wall panel (1) is to be installed, and the guide strips (21) are provided with sliding grooves; A slider (22), the slider (22) being slidably mounted in the slide groove, and one end of the mounting plate (11) close to the first rotating support (12) being fixedly mounted on the slider (22); A servo motor, the servo motor being fixedly mounted on one end of the guide bar (21), the output end of the servo motor being transmission-connected to a threaded rod (24), the threaded rod (24) passing through the slider (22) and being threadedly connected to the slider (22); A roller (23), wherein the roller (23) is mounted on one end of the mounting plate (11) close to the second rotating support (13).

2. A positioning device for assembled building construction according to claim 1, characterized in that: A square groove (141) is provided on the side wall of the clamping plate (14), and a plurality of rollers (142) are rotatably mounted in the square groove (141), wherein the axes of the rollers (142) are parallel to the horizontal plane.

3. The positioning device for assembled building construction according to claim 1, characterized in that: A baffle (121) is fixedly mounted on one side of the first rotating support (12) close to the second rotating support (13), and an elastic gasket (122) is fixedly mounted on one side of the baffle (121) close to the clamping plate (14).

4. The positioning device for assembled building construction according to claim 1, characterized in that: The positioning device further comprises a dust removal mechanism (4), wherein the dust removal mechanism (4) comprises: A bracket (41), wherein the bracket (41) is fixedly mounted on a side wall of the first rotating support (12); A rotating shaft is rotatably mounted on the bracket (41), and the axis of the rotating shaft is perpendicular to the guide bar (21), and bristles (42) are arranged on the side wall of the rotating shaft.

5. The positioning device for assembled building construction according to claim 4, characterized in that: The dust removal mechanism (4) further includes: A rack (45) fixedly installed on the upper edge of the guide bar (21); A first gear (43) rotatably installed on the bracket (41), and the first gear (43) meshes with the rack (45); A second gear (44) fixedly installed on the rotating shaft, and the second gear (44) meshes with the first gear (43).

6. The positioning device for assembled building construction according to claim 1, characterized in that: The acquisition unit includes an angle sensor installed on the second rotating support (13) for acquiring the elevation angle data of the hydraulic push rod (15) relative to the horizontal plane.

7. A positioning method for prefabricated building construction, characterized in that: The positioning method is executed on the positioning device for prefabricated building construction according to any one of claims 1 to 6, and the method includes the following steps: Step 1: Install the guide bar (21) on the upper end of the floor according to the installation position requirement of the precast wall panel (1); Step 2: Lift the precast wall panel (1) so that the mounting plate (11) leans against one of the clamping plates (14); Step 3: After confirming the release position of the mounting plate (11), drive the hydraulic push rod (15) to clamp the precast wall panel (1) by the two clamping plates (14), and at the same time release the suspension line to make the precast wall panel (1) land; Step 4: Evaluate the quality of the positioning state of the precast wall panel (1) through the monitoring module; Step 5: Generate a control strategy for the clamping assembly (2) according to the quality evaluation result.

8. A positioning method for prefabricated building construction according to claim 7, characterized in that: The process of evaluating the quality of the positioning state of the precast wall panel (1) includes: By formula Calculate and obtain the elevation angle deviation value P of the hydraulic push rod (15); Where θ is the elevation angle of the hydraulic push rod (15); h is the distance from the hinge support (16) along the surface of the clamping plate (14) to the mounting plate (11); d is the distance between the first rotating support (12) and the second rotating support (13); Compare the elevation angle deviation value P with the preset threshold range [P1, P2]: If P ∈ [P1, P2], the hydraulic push rod (15) is not adjusted; If P < P1, drive the hydraulic push rod (15) to slowly extend until P ∈ [P1, P2] is satisfied; If P > P2, drive the hydraulic push rod (15) to slowly contract until P ∈ [P1, P2] is satisfied.

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