Adjustable clamping and precise positioning device and construction method

Abstract

This invention discloses an adjustable clamping and precise positioning device and construction method, including a fixed base, a fixture, a starting component, a clamping component, and an adjusting component. The fixture has a slot for placing steel structures. The starting component drives the rotating mechanism, connecting arm, slider, and clamping plate in the clamping component to cooperate in action, achieving stable clamping of steel structures of different specifications. The adjusting component drives a ball screw structure through a second motor, causing the fixture to move laterally along the fixed base, achieving precise adjustment of the welding position. The construction method includes construction preparation, initial positioning, component placement, clamping and fixing, welding adjustment, and release and reset steps. This invention can avoid manual adjustment errors and cylinder drive instability, and prevent the steel structure from deforming due to excessive clamping or displacing due to excessive clamping. It has the advantages of stable clamping, precise positioning, and high welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of steel structure construction technology, and more specifically, to an adjustable clamping and precise positioning device and construction method for the installation and welding of building steel structures. Background Technology

[0002] In the installation and construction of steel structures, welding is a core connection process. Stable fixation and precise positioning of steel structural components before welding are crucial prerequisites for ensuring welding quality. Only by maintaining stable component positions, reliable clamping, and timely adjustment of the work position according to the weld location during the welding process can welding deviations be reduced, connection accuracy improved, and welding efficiency increased.

[0003] Existing steel structure welding auxiliary clamping devices mostly employ fixed-size, modular designs for their clamping components. Their clamping spacing and angles are typically developed only for specific cross-sectional types, such as standard H-beams, rectangular steel pipes, or steel structural members of fixed specifications. However, in actual engineering projects, steel structural members often utilize non-standard cross-sections, variable cross-section steel, composite irregular steel, or plates of varying thicknesses due to differences in design loads, installation locations, and stress requirements. This makes it difficult for existing clamping devices to flexibly adjust the clamping range, easily leading to problems such as incomplete clamping, localized suspension, or inaccurate positioning.

[0004] Furthermore, most existing devices control the clamping force through manual adjustment or a single cylinder drive. Manual adjustment relies on operator experience, using bolts, rockers, and other mechanical structures to adjust the clamping distance. This method is inefficient, and the clamping force is difficult to quantify, easily leading to either over-clamping causing localized deformation of the component or over-clamping causing displacement. While cylinder drive achieves a degree of semi-automation, it is significantly affected by fluctuations in air pressure, making it difficult to achieve stable clamping force output and dynamic fine-tuning, thus impacting welding quality. Summary of the Invention

[0005] The purpose of this invention is to address the problems mentioned in the background section by providing an adjustable clamping and precise positioning device and construction method to achieve stable clamping and precise positioning of steel structures of different specifications, thereby improving welding quality and construction efficiency.

[0006] The present invention adopts the following technical solution:

[0007] An adjustable clamping and precise positioning device includes a fixed base, a retainer disposed on the fixed base, an actuating component disposed on the retainer, a clamping component driven by the actuating component, and an adjusting component that drives the retainer to move laterally along the fixed base.

[0008] The fixture is provided with a slot for placing the steel structure to be welded.

[0009] The clamping component includes a rotator rotatably disposed within the fixture, a slider fixedly disposed within the fixture, a connecting arm rotatably connected to the rotator, a slider rotatably connected to the other end of the connecting arm, and a clamping plate disposed on the slider, wherein the slider is slidably connected to the slider.

[0010] The starting component is connected to the rotator for driving the rotator to rotate, so that the connecting arm pushes the slider to move along the slider, thereby moving the clamping plate closer to or away from the steel structure in the slot;

[0011] The adjusting component is located at the fixed base and is used to drive the fixing device to move laterally relative to the fixed base in order to adjust the welding position of the steel structure.

[0012] Furthermore, the starting component includes a first motor fixedly disposed at one end of the fixture, a starting gear fixedly disposed at the output end of the first motor, a rotating block fixedly disposed at one end of the rotator, and a rotating gear fixedly disposed on the rotating block, wherein the starting gear meshes with the rotating gear for transmission.

[0013] Furthermore, the adjusting component includes a slide groove formed on the fixed base, an adjusting block disposed in the slide groove, a second motor fixedly disposed on one side of the fixed base, a first rotating shaft fixedly connected to the output end of the second motor, and a second rotating shaft connected to the first rotating shaft, and the fixing device is connected to the adjusting block.

[0014] Furthermore, the threaded grooves on the first rotating shaft and the second rotating shaft are in opposite directions, and both the first rotating shaft and the second rotating shaft are ball screw structures. The adjusting block is provided with a ball screw pair that cooperates with the ball screw structure.

[0015] Furthermore, two adjusting blocks are symmetrically arranged inside the slide, and the fixture is connected to the two adjusting blocks respectively.

[0016] This invention discloses an adjustable clamping and precise positioning construction method, comprising the following steps:

[0017] S1. Based on the cross-sectional dimensions, component type, and welding requirements of the steel structure component to be welded, preset the clamping plate spacing parameters and clamping force parameters, and install the fixing seat on the construction platform;

[0018] S2. Drive the adjustment component to move, causing the fixture to move laterally along the fixed base to the initial welding position;

[0019] S3. Place the steel structure to be welded into the slot and adjust the posture of the steel structure so that the welding interface is aligned with the preset welding line.

[0020] S4. Drive the starting component to rotate, and push the slider along the slider through the connecting arm, so that the clamping plate moves toward the steel structure until it contacts the steel structure and reaches the preset clamping force, so as to complete the stable clamping of the steel structure.

[0021] S5. During the welding process, when it is necessary to adjust the welding position, the adjustment component is driven to move the fixture laterally along the fixed seat to the target welding position; when the steel structure expands and contracts due to the welding heat input and causes a change in the clamping state, the starting component is driven to fine-tune the clamping force to maintain a stable clamping state during the steel structure welding process.

[0022] S6. After welding is completed and the steel structure has cooled to a safe temperature, reverse the driving of the starting component to loosen the clamping plate, remove the welded steel structure, and drive the adjusting component to reset the fixture.

[0023] Further, in step S1, the fixing seat is fastened to a flat and solid construction platform by expansion bolts, and the parallelism between the mounting plane of the fixing seat and the welding reference plane is calibrated.

[0024] Furthermore, after step S6, the fixed base, the adjusting component, the starting component, and the slider are cleaned and lubricated for maintenance.

[0025] Beneficial effects

[0026] 1. The present invention designs the adjustable clamping device as an independent structure. The clamping components, through the linkage of the rotator, connecting arm, slider, slideer and clamping plate, can flexibly adjust the clamping plate spacing, which can stably fix steel structure components of different cross-sectional sizes and types, and significantly improve the clamping adaptability.

[0027] 2. The starting component adopts a first motor in conjunction with gear transmission, which provides stable power output and can accurately control the rotation speed and angle of the rotator, thereby precisely adjusting the moving speed and clamping force of the clamping plate, avoiding manual adjustment errors and cylinder drive instability, and effectively preventing the steel structure from deforming due to excessive clamping or shifting due to excessive clamping.

[0028] 3. The adjustment component adopts a second motor-driven bidirectional ball screw structure, which can drive the fixing device to automatically adjust laterally along the slide. No overall handling device is required. The precise positioning and rapid reset of the welding position can be achieved solely through motor control, reducing operation steps and significantly improving welding efficiency.

[0029] 4. The construction method of the present invention, based on the independent device structure, limits the steps of installation, positioning, placement, clamping, welding adjustment and resetting maintenance, which enables the clamping and positioning device to work in coordination with the welding construction process to ensure the stable positioning of the components before and after welding.

[0030] 5. By dynamically fine-tuning the clamping force during the welding process, it can effectively adapt to the thermal expansion and contraction caused by the welding heat input, further ensuring the stability of the components and the welding quality during the welding process. Attached Figure Description

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

[0032] Figure 2 This is a schematic diagram of a startup component according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of a clamping component according to an embodiment of the present invention;

[0034] Figure 4 This is another schematic diagram of a clamping component according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of an adjustment component according to an embodiment of the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] As shown in the figure, this invention discloses an adjustable clamping and precise positioning device, including a fixed base 101, a fixture 102, an actuating component 202, a clamping component 203, and an adjusting component 204. The fixed base 101 serves as the installation reference for the entire device and is set on a flat and solid construction platform. The fixture 102 is mounted on the fixed base 101 and can move laterally along the fixed base 101. The fixture 102 is provided with a slot 201 for accommodating a steel structure, an actuating component 202 for driving the clamping action, and a clamping component 203 for realizing the clamping action.

[0038] In the clamping component 203, the rotator 2031 is rotatably mounted within the fixture 102, the slider 2033 is fixedly mounted within the fixture 102, one end of the connecting arm 2032 is rotatably connected to the rotator 2031, and the other end is rotatably connected to the slider 2034. The slider 2034 is slidably connected to the slider 2033, and the clamping plate 2035 is mounted on the slider 2034. Through the cooperation of the above mechanisms, the rotation of the rotator 2031 can be converted into the linear clamping motion of the clamping plate 2035, thereby achieving stable clamping of the steel structure.

[0039] In the starting component 202, the first motor 2021 is fixedly mounted on one end of the fixture 102, and the starting gear 2022 is fixedly mounted on the output end of the first motor 2021; the rotating block 2023 is fixedly mounted on one end of the rotator 2031, and the rotating gear 2024 is fixedly mounted on the rotating block 2023. After the first motor 2021 outputs power, it drives the rotator 2031 to rotate through the meshing transmission of the starting gear 2022 and the rotating gear 2024, thereby driving the connecting arm 2032, the slider 2034, and the clamping plate 2035 to move, realizing the automated and high-precision driving of the clamping plate 2035.

[0040] The adjusting component 204 includes a slide groove 2041 formed on the fixed base 101, with adjusting blocks 2045 symmetrically arranged within the slide groove 2041. A second motor 2042 is fixedly mounted on one side of the fixed base 101, and a first rotating shaft 2043 is fixedly mounted on the output end of the second motor 2042. A second rotating shaft 2044 is fixedly mounted on one end of the first rotating shaft 2043. The threaded grooves on the first rotating shaft 2043 and the second rotating shaft 2044 are in opposite directions, and both adopt a ball screw structure. The adjusting block 2045 is provided with a ball screw pair that cooperates with it to achieve stable lateral movement of the fixture 102 on the fixed base 101.

[0041] This invention discloses an adjustable clamping and precise positioning construction method, comprising the following steps:

[0042] S1. Based on the cross-sectional dimensions, component type, and welding requirements of the steel structure component to be welded, preset the clamping plate spacing parameters and clamping force parameters, and install the fixing seat on the construction platform;

[0043] S2. Drive the adjustment component to move, causing the fixture to move laterally along the fixed base to the initial welding position;

[0044] S3. Place the steel structure to be welded into the slot and adjust the posture of the steel structure so that the welding interface is aligned with the preset welding line.

[0045] S4. Drive the starting component to rotate, and push the slider along the slider through the connecting arm, so that the clamping plate moves toward the steel structure until it contacts the steel structure and reaches the preset clamping force, so as to complete the stable clamping of the steel structure.

[0046] S5. During the welding process, when it is necessary to adjust the welding position, the adjustment component is driven to move the fixture laterally along the fixed seat to the target welding position; when the steel structure expands and contracts due to the welding heat input and causes a change in the clamping state, the starting component is driven to fine-tune the clamping force to maintain a stable clamping state during the steel structure welding process.

[0047] S6. After welding is completed and the steel structure has cooled to a safe temperature, reverse the driving of the starting component to loosen the clamping plate, remove the welded steel structure, and drive the adjusting component to reset the fixture.

[0048] When using the above-mentioned device to install and weld building steel structures, the spacing of the clamping plates 2035 and the clamping force parameters are first precisely preset according to the cross-sectional dimensions of the components to be welded; then, the fixing seat 101 is fastened to a flat and solid construction platform with expansion bolts, and the parallelism between the installation plane and the welding reference plane is precisely calibrated.

[0049] After installation, the second motor 2042 is started, driving the first rotating shaft 2043 and the second rotating shaft 2044 to rotate synchronously, causing the adjusting block 2045 and the fixing device 102 to move laterally along the slide 2041 to the initial welding position and lock. Then, the steel structure is smoothly placed into the slot 201 of the fixing device 102, and the posture of the components is adjusted to ensure that the welding interface is precisely aligned with the preset welding line and to avoid any local suspension.

[0050] Next, the first motor 2021 is started. The starting gear 2022 and the rotating gear 2024 mesh to drive the rotating device 2031 to rotate. The connecting arm 2032 swings accordingly and pushes the slider 2034 to slide smoothly along the slider 2033, so that the clamping plate 2035 moves towards the steel structure until the clamping plate 2035 is in close contact with the steel structure and the preset clamping force is accurately reached, and then it is locked.

[0051] During the welding process, if the welding position needs to be adjusted, the second motor 2042 is started to drive the fixture 102 to move laterally along the slide 2041 to the target position; if the welding heat input causes thermal expansion and contraction and leads to changes in the clamping state, the output of the first motor 2021 is dynamically fine-tuned to stabilize the clamping force, and the operator completes the welding operation according to the process specifications.

[0052] After welding is completed and the steel structure has cooled to a safe temperature, the first motor 2021 is started in reverse to smoothly release the clamping plate 2035, remove the welded component and place it in the designated area; finally, the second motor 2042 is started to accurately reset the fixture 102 to the initial position, the power is turned off, and the welding residue and dust on the surface of the device are cleaned. The slide 2041, starting gear 2022, rotating gear 2024 and slider 2033 are inspected and lubricated to ensure the stability and accuracy of subsequent operations.

[0053] This invention utilizes the combined action of motor-driven clamping adjustment and lateral positioning to stably fix steel structure components of different cross-sectional dimensions and types, and achieves precise positioning and dynamic adjustment during the welding process. It is particularly suitable for construction steel structure installation and welding scenarios.

[0054] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable clamping and precise positioning device, characterized in that: It includes a fixed base, a retainer disposed on the fixed base, an actuating component disposed on the retainer, a clamping component driven by the actuating component, and an adjusting component that drives the retainer to move laterally along the fixed base; The fixture is provided with a slot for placing the steel structure to be welded. The clamping component includes a rotator rotatably disposed within the fixture, a slider fixedly disposed within the fixture, a connecting arm rotatably connected to the rotator, a slider rotatably connected to the other end of the connecting arm, and a clamping plate disposed on the slider, wherein the slider is slidably connected to the slider. The starting component is connected to the rotator for driving the rotator to rotate, so that the connecting arm pushes the slider to move along the slider, thereby moving the clamping plate closer to or away from the steel structure in the slot; The adjusting component is located at the fixed base and is used to drive the fixing device to move laterally relative to the fixed base in order to adjust the welding position of the steel structure.

2. The adjustable clamping and precise positioning device according to claim 1, characterized in that: The starting component includes a first motor fixedly mounted on one end of the fixture, a starting gear fixedly mounted on the output end of the first motor, a rotating block fixedly mounted on one end of the rotator, and a rotating gear fixedly mounted on the rotating block. The starting gear meshes with the rotating gear for transmission.

3. The adjustable clamping and precise positioning device according to claim 1, characterized in that: The adjusting component includes a slide groove formed on the fixed base, an adjusting block disposed in the slide groove, a second motor fixedly disposed on one side of the fixed base, a first rotating shaft fixedly connected to the output end of the second motor, and a second rotating shaft connected to the first rotating shaft. The fixing device is connected to the adjusting block.

4. The adjustable clamping and precise positioning device according to claim 3, characterized in that: The threaded grooves on the first rotating shaft and the second rotating shaft are in opposite directions, and both the first rotating shaft and the second rotating shaft are ball screw structures. The adjusting block is provided with a ball screw pair that cooperates with the ball screw structure.

5. The adjustable clamping and precise positioning device according to claim 3, characterized in that: Two adjusting blocks are symmetrically arranged inside the slide, and the fixture is connected to the two adjusting blocks respectively.

6. An adjustable clamping and precise positioning construction method, characterized in that: Includes the following steps: S1. Based on the cross-sectional dimensions, component type, and welding requirements of the steel structure component to be welded, preset the clamping plate spacing parameters and clamping force parameters, and install the fixing seat on the construction platform; S2. Drive the adjustment component to move, causing the fixture to move laterally along the fixed base to the initial welding position; S3. Place the steel structure to be welded into the slot and adjust the posture of the steel structure so that the welding interface is aligned with the preset welding line. S4. Drive the starting component to rotate, and push the slider along the slider through the connecting arm, so that the clamping plate moves toward the steel structure until it contacts the steel structure and reaches the preset clamping force, so as to complete the stable clamping of the steel structure. S5. During the welding process, when it is necessary to adjust the welding position, the adjustment component is driven to move the fixture laterally along the fixed seat to the target welding position; when the steel structure expands and contracts due to the welding heat input and causes a change in the clamping state, the starting component is driven to fine-tune the clamping force to maintain a stable clamping state during the steel structure welding process. S6. After welding is completed and the steel structure has cooled to a safe temperature, reverse the driving of the starting component to loosen the clamping plate, remove the welded steel structure, and drive the adjusting component to reset the fixture.

7. The adjustable clamping and precise positioning construction method according to claim 6, characterized in that: In step S1, the fixing seat is fastened to a flat and solid construction platform by expansion bolts, and the parallelism between the mounting plane of the fixing seat and the welding reference plane is calibrated.

8. The adjustable clamping and precise positioning construction method according to claim 6, characterized in that: After step S6, the fixed base, the adjusting component, the starting component, and the slider are cleaned and lubricated for maintenance.

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