Multi-degree-of-freedom universal self-adapting positioning jig frame for special-shaped space structure form-finding support

Abstract

The utility model relates to a kind of multi-degree-of-freedom universal self-adapting position-adjusting jig frames for finding shape supporting of special-shaped space structure, including base;Still including the ear plate respectively installed in the left and right sides of base, the upper end surface of base is installed with motor one, the output end of motor one is connected with rotating seat, the upper end surface of base is provided with annular slide groove, rotating seat and annular slide groove are slidingly connected, the upper end surface of rotating seat is installed with electric push rod, the output end of electric push rod is connected with U type frame one, the front side surface of U type frame one is installed with motor two, the output end of motor two is connected with rotating shaft one, the surface of rotating shaft one is fixedly connected with the one end of link rod;The novel is rotated by motor one, electric push rod is lifted, motor two is inclined and motor three is circumferentially rotated, realizes multi-degree-of-freedom collaborative positioning, matches special-shaped structure node;The slide rail under link rod, sliding block and damping buffer rod constitute passive redundant support, load can be slowly reduced when main drive fails, and high-precision installation and intrinsic safety are considered.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-degree-of-freedom adjustment frame for shape-finding support, specifically a multi-degree-of-freedom universal adaptive adjustment frame for shape-finding support of irregular spatial structures. Background Technology

[0002] The multi-degree-of-freedom omnidirectional adaptive positioning jig for irregular spatial structure form-finding support is an adjustable jig specifically designed for precise positioning and temporary support of complex, irregular (i.e., "irregular") spatial steel structures or other large building components during construction or manufacturing. The device has multiple degrees of freedom, is omnidirectionally adjustable, and can automatically or semi-automatically adapt to changes in structural shape. It is mainly used for: irregular (non-standard geometric) spatial structures (such as curved reticulated shells, free-form curtain wall frames, large-span irregular trusses, etc.); and for precise form-finding (i.e., adjusting to the design position and orientation) of components during factory prefabrication or on-site installation, providing temporary but high-precision support to ensure structural stability before the formation of an overall load-bearing system.

[0003] Commonly used form-finding support jigs for irregular spatial structures typically employ fixed or single-degree-of-freedom manually adjustable structures. Their adjustment capabilities are extremely limited, making it difficult to meet the high-precision installation requirements of modern large-span, free-form, or irregularly shaped spatial structures. Specific problems arise in the following aspects: First, traditional jigs rely on manual shims, jacks, or bolts for fine-tuning, which can only achieve height adjustment in one direction. They cannot simultaneously control multi-dimensional positional parameters such as horizontal rotation, pitch tilt, and circumferential attitude. This results in repeated disassembly and reassembly and multiple trial and error attempts when dealing with complex curved surface nodes. This is not only inefficient but also results in large cumulative errors, making it difficult to achieve the millimeter-level installation accuracy required by the design. Secondly, the existing jigs lack an integrated multi-axis linkage drive mechanism. The adjustment components are independent of each other and lack coordination logic. The operation process is cumbersome and highly dependent on the technical experience of construction personnel. In large-scale projects, it is difficult to achieve unified shape finding and overall coordination of multiple support points, which can easily cause local stress concentration or forced positioning of components, affecting the structural stress performance and even causing safety hazards. Furthermore, most traditional positioning jigs are not equipped with any safety redundancy or fault protection devices. Once mechanical loosening, hydraulic pressure loss, or human error occurs while the jig is in a high-altitude support state, the heavy components it supports may become unstable and fall instantly, which can easily cause equipment damage, construction delays, or even personal injury. Especially in the event of power outages or control structure failures, the lack of passive slow descent or self-locking functions poses an extremely high safety risk. In addition, conventional jigs are often fixed bases, which do not have the ability to be quickly moved or flexibly deployed. They are difficult to adapt to the need for frequent changes in support positions in the construction of irregular structures, which further restricts the construction progress and the level of mechanization. In summary, existing positioning jigs have significant shortcomings in terms of multi-degree-of-freedom adaptive adjustment capabilities, collaborative control precision, intrinsic safety protection mechanisms, and on-site mobility, making it difficult to meet the current development requirements for efficient, precise, and safe construction of complex and irregular spatial structures. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-degree-of-freedom omnidirectional adaptive positioning jig for form-finding support of irregular spatial structures. The jig features multi-motor coordinated positioning to accurately adapt to irregular nodes, and a damping buffer structure to facilitate fault descent. It balances accuracy and safety, solving the problems of common jigs having limited adjustment freedom, lack of coordinated control, insufficient safety protection, and difficulty in movement, thus failing to meet the high-precision and safe construction requirements of irregular structures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-degree-of-freedom omnidirectional adaptive positioning frame for form-finding support of irregular spatial structures, including a base; and ear plates respectively installed on the left and right sides of the base. A motor is installed on the upper surface of the base, and the output end of the motor is connected to a rotating seat. An annular groove is provided on the upper surface of the base, and the rotating seat and the annular groove are slidably connected. An electric push rod is installed on the upper surface of the rotating seat, and the output end of the electric push rod is connected to a U-shaped frame. A motor is installed on the front surface of the U-shaped frame, and the output end of the motor is connected to a rotating shaft. One end of a connecting rod is fixedly connected to the surface of the rotating shaft, and the other end of the connecting rod is connected to the U-shaped frame. A motor is installed on the surface of the U-shaped frame, and the output end of the motor is connected to the rotating shaft. A connecting piece for installing a special clamp is provided on the surface of the rotating shaft. The lower end face of the connecting rod is provided with a slide rail, and a sliding block is slidably connected to the surface of the slide rail. A hinge one is installed on the sliding block, a hinge two is installed on the rotating seat, and a telescopic buffer rod is installed on the hinge two. The output end of the telescopic buffer rod is connected to the hinge one.

[0006] Furthermore, ear plates are symmetrically arranged on the left and right sides of the base to detachably fix the entire jig frame to the small mobile vehicle body, facilitating flexible transportation and positioning at the construction site.

[0007] Furthermore, the annular groove cooperates with the slider or roller at the bottom of the rotating seat to form a rotary support structure, enabling the rotating seat to rotate horizontally around the central axis of the base under the drive of the motor.

[0008] Furthermore, the electric push rod is installed vertically on the upper surface of the rotating seat, and its telescopic movement drives the U-shaped frame and the upper mechanism to rise and fall as a whole.

[0009] Furthermore, motor two drives the connecting rod to pitch and swing around the horizontal axis via shaft one, which is used to adjust the tilt angle of U-shaped frame two and connecting parts.

[0010] Furthermore, the motor three drives the connecting piece to rotate around an axis perpendicular to the connecting rod via the rotating shaft two, and its special fixture can perform circumferential attitude fine adjustment to adapt to the local curved surface of the irregular component.

[0011] Furthermore, the telescopic buffer rod is a passive support element with a built-in damper or hydraulic slow-release mechanism. Its two ends are respectively hinged to the rotating seat and the sliding block through hinge two and hinge one, forming a mechanically redundant safety structure together with the slide rail and the sliding block.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. Through the horizontal rotation driven by motor one, the vertical lifting controlled by electric push rod, the pitch swing driven by motor two, and the circumferential rotation driven by motor three, combined with the universal joint clamp interface, the jig frame can achieve multi-degree-of-freedom coordinated adjustment in space, quickly and accurately match the design posture of any node of irregular spatial structure, and improve the installation accuracy and construction efficiency of complex curved steel structure or curtain wall frame. 2. By setting a passive auxiliary support system consisting of a slide rail, a sliding block and a telescopic buffer rod with damping function under the connecting rod, dynamic balance and vibration suppression are provided under normal working conditions. In the event of a sudden power failure, loss of load or mechanical failure of the main drive system, the load descent speed is limited by the controllable damping force, so that the clamped material descends slowly instead of falling freely, effectively preventing the risk of falling objects and ensuring the safety of personnel and structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the location of the base of this utility model; Figure 3 This is a three-dimensional structural diagram of the location of the electric push rod of this utility model; Figure 4 This is a schematic diagram of the partially disassembled three-dimensional structure of this utility model; Figure 5 This is a three-dimensional structural diagram of the location of the connecting rod in this utility model.

[0014] In the diagram: 1. Base; 2. Ear plate; 3. Motor 1; 4. Annular slide groove; 5. Rotating seat; 6. Electric push rod; 7. U-shaped frame 1; 8. Motor 2; 9. Rotating shaft 1; 10. Connecting rod; 11. U-shaped frame 2; 12. Motor 3; 13. Rotating shaft 2; 14. Connecting piece; 15. Slide rail; 16. Sliding block; 17. Hinge 1; 18. Hinge 2; 19. Telescopic buffer rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5 This embodiment of a multi-degree-of-freedom omnidirectional adaptive positioning frame for form-finding support of irregular spatial structures includes a base 1; it also includes ear plates 2 respectively installed on the left and right sides of the base 1. A motor 3 is installed on the upper surface of the base 1. The output end of the motor 3 is connected to a rotating seat 5. An annular groove 4 is opened on the upper surface of the base 1. The rotating seat 5 and the annular groove 4 are slidably connected. An electric push rod 6 is installed on the upper surface of the rotating seat 5. The output end of the electric push rod 6 is connected to a U-shaped frame 7. A motor 8 is installed on the front surface of the U-shaped frame 7. The output end of the motor 8 is connected to a rotating shaft 9. One end of a connecting rod 10 is fixedly connected to the surface of the rotating shaft 9. The other end of the connecting rod 10 is connected to a U-shaped frame 11. A motor 12 is installed on the surface of the U-shaped frame 11. The output end of the motor 12 is connected to a rotating shaft 13. A connecting piece 14 for installing a special clamp is provided on the surface of the rotating shaft 13.

[0017] In this embodiment, multi-degree-of-freedom coordinated positioning is achieved through the rotation of motor 13, the lifting of electric push rod 6, the pitching of motor 28, and the circumferential rotation of motor 312, which can accurately adapt to irregular structural nodes. At the same time, the slide rail 15-sliding block 16-damping buffer rod set below the connecting rod 10 constitutes a passive redundant support, which can reduce the load in the event of a main system failure, taking into account both high-precision installation and intrinsic safety protection.

[0018] Please see Figures 1-5 In this embodiment, in order to prevent the equipment from suddenly losing power or malfunctioning, the bottom buffer rod will automatically release the material slowly to prevent it from falling suddenly and ensure on-site safety. In this embodiment, the lower end face of the connecting rod 10 is provided with a slide rail 15, and a sliding block 16 is slidably connected to the surface of the slide rail 15. A hinge 17 is installed on the sliding block 16, a hinge 2 18 is installed on the rotating seat 5, and a telescopic buffer rod 19 is installed on the hinge 2 18. The output end of the telescopic buffer rod 19 is connected to the hinge 17.

[0019] In this embodiment, a slide rail 15 is provided at the lower end of the connecting rod 10. A sliding block 16 is provided on the slide rail 15. A hinge 17 is installed on the sliding block 16. A hinge 2 18 is provided on the rotating seat 5. The hinge 2 18 is connected to one end of the telescopic buffer rod 19, and the other end of the telescopic buffer rod 19 is connected to the hinge 17. This structure forms a passive slow-descent support mechanism, which can limit the downward speed by relying on the damping effect when the main drive fails, so that the material falls smoothly and slowly, effectively avoiding impact loads, preventing objects from falling from heights, and improving the safety and reliability of the operation.

[0020] It should be noted that the ear plates 2 are symmetrically arranged on the left and right sides of the base 1, and are used to detachably fix the entire jig frame to the small mobile vehicle body, so as to facilitate flexible transportation and positioning at the construction site. The ear plates 2 are used to detachably install the jig frame on the small mobile vehicle body, so as to realize the rapid transportation and flexible positioning of the jig frame at the construction site, and improve the equipment deployment efficiency and operational adaptability.

[0021] Please see Figures 1-5 In this embodiment, in order to flexibly adjust the position and angle of the fixture in space, quickly align the design and installation points of complex curved components, and improve construction accuracy and efficiency, the annular slide 4 in this embodiment cooperates with the slider or roller at the bottom of the rotating seat 5 to form a rotary support structure, so that the rotating seat 5 can rotate horizontally around the central axis of the base 1 under the drive of motor 1 3. The electric push rod 6 is installed on the upper surface of the rotating seat 5 in the vertical direction, and drives the U-shaped frame 1 7 and the upper mechanism to rise and fall as a whole through telescopic movement. Motor 2 8 drives the connecting rod 10 to pitch and swing around the horizontal axis through the rotating shaft 1 9, which is used to drive the adjustment of the front and rear tilt angles of the U-shaped frame 2 11 and the connecting piece 14. Motor 3 12 drives the connecting piece 14 to rotate around the axis perpendicular to the connecting rod 10 through the rotating shaft 2 13. Its special fixture can make circumferential attitude fine adjustments to adapt to the local curved surface of the irregular component.

[0022] In this embodiment, motor 3 drives the rotating seat 5 to rotate horizontally, thereby adjusting the azimuth angle of the clamp. The electric push rod 6 drives the upper mechanism to rise and fall vertically through extension and retraction, meeting the height matching requirements. Motor 8 drives the connecting rod 10 to swing in and out of the pitch, adjusting the front and rear tilt angle of the clamp. Motor 12 drives the connecting piece 14 to rotate circumferentially, thereby fine-tuning the clamp's posture. All actions work together to enable the clamp to quickly and accurately adapt to the installation points of complex curved surface components, significantly improving construction accuracy, efficiency, and adaptability.

[0023] It should be noted that the telescopic buffer rod 19 is a passive support element with a built-in damper or hydraulic slow-release mechanism. Its two ends are respectively hinged to the rotating seat 5 and the sliding block 16 through hinge 2 18 and hinge 17, and together with the slide rail 15 and the sliding block 16, it forms a mechanical redundancy safety structure. The connector 14 is a connecting plate with mounting holes for detachably fixing the special clamp. The telescopic buffer rod 19 is a passive element without power drive, and has a hydraulic damper, gas spring or viscous damping structure inside, which generates controllable resistance only when subjected to external force.

[0024] The working principle of the above embodiments is as follows: In use, the entire jig frame is first detachably mounted on the small mobile vehicle body via the ear plate 2, facilitating rapid transport and positioning to the target support area on the construction site. Then, motor 3 is started, driving the rotating seat 5 to rotate horizontally along the annular groove 4 on the base 1, achieving coarse adjustment of the clamp in the azimuth direction. Next, the electric push rod 6 is controlled to extend and retract, driving the U-shaped frame 7 and all the mechanisms above it to rise and fall vertically, completing the height-direction positioning. Then, motor 8 drives the rotating shaft 9 to rotate, causing the connecting rod 10 to tilt and swing around the horizontal axis, thereby adjusting the front and rear tilt angles of the U-shaped frame 11 and the connecting piece 14. Finally, motor 3 drives the rotating shaft 13 to rotate, driving the connecting piece 14 and its attached special... The clamp is finely adjusted circumferentially around the axis perpendicular to the connecting rod 10 to precisely match the design posture of the local curved surface of the irregular spatial structure. The above-mentioned multi-degree-of-freedom actions work together to enable the clamp to quickly and accurately align the installation nodes of complex components, improving construction accuracy and efficiency. During the entire operation, if a power outage or failure of the main drive mechanism occurs, the connecting rod 10 will cause the sliding block 16 to slide along the slide rail 15 due to the downward pressure of gravity. At this time, the telescopic buffer rod 19 is stretched through hinge 17 and hinge 2 18. Its built-in damper or hydraulic slow-release mechanism generates controllable resistance, limiting the downward speed, so that the clamped material falls smoothly and slowly, avoiding sudden falls, effectively preventing the risk of falling objects from heights, and ensuring the safety of on-site personnel and structures.

[0025] It should be noted that the operation of each motor is coordinated and controlled by an external controller. Its control logic is based on preset position parameters or real-time feedback signals, which is a conventional control method in this field, and therefore will not be described in detail.

[0026] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-degree-of-freedom universal adaptive positioning jig for form-finding support of irregular spatial structures, comprising a base (1); characterized in that: It also includes ear plates (2) installed on the left and right sides of the base (1), motor one (3) installed on the upper surface of the base (1), the output end of motor one (3) connected to a rotating seat (5), an annular groove (4) opened on the upper surface of the base (1), the rotating seat (5) and the annular groove (4) are slidably connected, an electric push rod (6) installed on the upper surface of the rotating seat (5), a U-shaped frame one (7) connected to the output end of the electric push rod (6), a motor two (8) installed on the front surface of the U-shaped frame one (7), a rotating shaft one (9) connected to the output end of the motor two (8), a connecting rod (10) fixedly connected to the surface of the rotating shaft one (9), a U-shaped frame two (11) connected to the other end of the connecting rod (10), a motor three (12) installed on the surface of the U-shaped frame two (11), a rotating shaft two (13) connected to the output end of the motor three (12), and a connecting piece (14) for installing a special clamp on the surface of the rotating shaft two (13). A slide rail (15) is provided on the lower end face of the connecting rod (10). A sliding block (16) is slidably connected to the surface of the slide rail (15). A hinge one (17) is installed on the sliding block (16). A hinge two (18) is installed on the rotating seat (5). A telescopic buffer rod (19) is installed on the hinge two (18). The output end of the telescopic buffer rod (19) is connected to the hinge one (17).

2. The multi-degree-of-freedom universal adaptive positioning frame for form-finding support of irregular spatial structures according to claim 1, characterized in that: Ear plates (2) are symmetrically arranged on the left and right sides of the base (1) to detachably fix the entire frame to the small mobile vehicle body, so as to facilitate flexible transportation and positioning at the construction site.

3. The multi-degree-of-freedom universal adaptive positioning frame for form-finding support of irregular spatial structures according to claim 1, characterized in that: The annular groove (4) and the slider or roller at the bottom of the rotating seat (5) cooperate to form a rotary support structure, so that the rotating seat (5) can rotate horizontally around the central axis of the base (1) under the drive of motor (3).

4. The multi-degree-of-freedom universal adaptive positioning frame for form-finding support of irregular spatial structures according to claim 1, characterized in that: The electric push rod (6) is installed vertically on the upper surface of the rotating seat (5), and drives the U-shaped frame (7) and the upper mechanism to rise and fall as a whole through telescopic movement.

5. The multi-degree-of-freedom universal adaptive positioning frame for form-finding support of irregular spatial structures according to claim 1, characterized in that: Motor 2 (8) drives connecting rod (10) to pitch and swing around the horizontal axis via rotating shaft 1 (9), which is used to adjust the tilt angle of U-shaped frame 2 (11) and connecting piece (14).

6. The multi-degree-of-freedom universal adaptive positioning frame for form-finding support of irregular spatial structures according to claim 1, characterized in that: Motor 3 (12) drives connector (14) to rotate around an axis perpendicular to connecting rod (10) via shaft 2 (13). Its special fixture can make circumferential attitude fine adjustments to adapt to the local curved surface of irregular component.

7. The multi-degree-of-freedom universal adaptive positioning frame for form-finding support of irregular spatial structures according to claim 1, characterized in that: The telescopic buffer rod (19) is a passive support element with a built-in damper or hydraulic slow-release mechanism. Its two ends are respectively hinged to the rotating seat (5) and the sliding block (16) through hinge two (18) and hinge one (17), and together with the slide rail (15) and the sliding block (16), it forms a mechanical redundancy safety structure.

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