A supporting device for steel frame welding of plant extension

Abstract

This utility model relates to the technical field of auxiliary equipment for steel frame welding, and discloses a support device for welding steel frames in factory expansion projects. It includes a support adjustment component, a height adjustment component, and a positioning clamping component. The support adjustment component includes a base with side plates fixedly installed on both sides. Each side plate is equipped with a level. The bottom of the support adjustment component features braked casters for quick movement and positioning. The level on the side plates, in conjunction with a threaded sleeve, a screw, and a non-slip, stable base, enables precise adjustment of the device's horizontal position. Rotating the adjustment block causes the screw to rise and fall along the threaded sleeve, adjusting the stable base to contact the ground. Combined with real-time monitoring by the level, the device is ensured to be level. A rocker arm drives a worm gear transmission, causing the threaded rod to rotate. With the guidance of a limiting slide bar and a limiting groove, the lifting plate rises and falls smoothly along the fixed plate. The height can be flexibly adjusted according to the steel frame specifications and welding requirements, reducing the frequency of steel frame position adjustments.

Description

Technical Field

[0001] This utility model relates to the technical field of steel frame welding auxiliary equipment, and in particular to a support device for welding steel frames in factory expansion. Background Technology

[0002] In recent years, an increasing number of steel structure factory buildings have been involved in renovation, expansion, and reinforcement. This requires welding new steel frame beams to the ends of the existing steel frame beams for expansion work. During the welding of steel frame beams, some steel frame beams are too long, and the end faces of the steel frame beams cannot make good contact, causing great inconvenience. Therefore, fixing devices are needed, mainly to support the bottom of the steel frame beams to facilitate welding. These devices are widely used in large factories, stadiums, and super high-rise buildings.

[0003] Most existing support devices have relatively simple structures, typically using fixed-height brackets to support steel frames. However, in actual welding processes, due to the varying specifications of steel frames and the different welding positions, the requirements for support height and angle also differ. Existing fixed-height brackets are insufficient to meet diverse support needs, requiring frequent adjustments to the steel frame position, resulting in low work efficiency. Furthermore, most existing support devices are not easily adjustable horizontally. On uneven surfaces, non-horizontal supports can cause the relative position of the parts of the steel frame to be welded to shift, affecting the welding quality. Therefore, we propose a support device for welding steel frames in factory expansion projects. Utility Model Content

[0004] The purpose of this utility model is to provide a support device for welding steel frames in factory expansion projects. This addresses the problem that most existing support devices have relatively simple structures and typically use fixed-height supports to support the steel frame. However, in actual welding processes, due to the varying specifications of the steel frames and the different welding positions, the requirements for support height and angle also differ. Existing fixed-height supports are insufficient to meet diverse support needs, requiring frequent adjustments to the steel frame position, resulting in low work efficiency. Furthermore, most existing support devices are not easy to adjust horizontally. On uneven surfaces, non-horizontal supports can cause the relative position of the parts of the steel frame to be welded to shift, affecting the welding quality of the steel frame.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support device for welding steel frames in factory expansion, comprising a support adjustment component, a height adjustment component, and a positioning clamping component. The support adjustment component includes a base, with four corners of the base fixedly equipped with braked casters. Side plates are fixedly installed on both sides of the base, and each of the two sets of side plates is equipped with a level. Threaded sleeves are fixedly installed at both ends of the two sets of side plates. A screw is threadedly connected to the inside of the threaded sleeve. An adjustment block is fixedly installed on the circumferential surface of the bottom end of the screw, and a stabilizing base is fixedly installed on the bottom surface of the screw. The bottom of the stabilizing base is provided with anti-slip texture.

[0006] As a preferred embodiment, the threaded sleeve is vertically mounted on the side plate. By rotating the adjusting block, the screw can be raised and lowered along the threaded sleeve to facilitate adjustment and stabilize the contact state between the chassis and the ground. The level instrument realizes the horizontal adjustment of the device and is used to detect the horizontal state of the device. The height adjustment component is mounted on the support adjustment component and is used to adjust the overall height of the device. The positioning clamping component is mounted on the top of the height adjustment component and is used to clamp and position the steel frame.

[0007] As a preferred embodiment, the height adjustment assembly includes a fixed plate, a lifting plate, a limiting slide bar, a threaded rod, a worm gear, a rotating rod, a worm, and a rocker arm. The fixed plate is provided in two sets and is fixedly installed at both ends of the base surface. The lifting plate is sleeved inside the fixed plate. The limiting slide bar is fixedly installed on the outer wall of the lifting plate, and the inner wall of the fixed plate is provided with a limiting groove that matches the limiting slide bar.

[0008] As a preferred embodiment, the threaded rod is vertically mounted on the bottom surface inside the fixed plate via a bearing seat and is threadedly engaged with the lifting plate. The rotating rod is transversely inserted inside the fixed plate and extends to the outer side of the right fixed plate at one end. The worm gear is fixedly mounted on the circumferential surface at the bottom end of the threaded rod. The worm is mounted on the rotating rod and meshes with the worm gear. The rocker arm is connected to one end of the rotating rod. By rotating the rocker arm, the worm and worm gear are driven to rotate the threaded rod.

[0009] As a preferred embodiment, the positioning and clamping assembly includes a top plate, a limiting T-shaped slide groove, a dual-axis motor, lead screws, a T-shaped slider, a connecting plate, and a clamping plate. The top plate is installed on the top of the two sets of lifting plates. The limiting T-shaped slide groove is formed on the upper surface of the top plate. The dual-axis motor is set in the limiting T-shaped slide groove. There are two lead screws, which are respectively connected to the two output shafts of the dual-axis motor. The threads of the two lead screws are turned in opposite directions, and the two output shafts of the dual-axis motor rotate in opposite directions.

[0010] As a preferred embodiment, the T-shaped slider is threadedly engaged with the lead screw, and the T-shaped slider is slidably disposed within the limiting T-shaped groove. The connecting plate is disposed on the top of the T-shaped slider, and the clamping plate is disposed on the top of the connecting plate. The operation of the dual-axis motor drives the two lead screws to rotate, causing the T-shaped slider to slide along the limiting T-shaped groove. The inner side of the clamping plate is provided with a rubber buffer layer.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By coordinating the support adjustment component and the height adjustment component, the defects of existing support devices are overcome. In the support adjustment component, the bottom universal casters with brakes facilitate the quick movement and positioning of the device. The level on the side plate, together with the threaded sleeve, screw, adjusting block and anti-slip stable chassis, can achieve precise adjustment of the device's level. Even on uneven ground, rotating the adjusting block causes the screw to rise and fall along the threaded sleeve, adjusting the stable chassis to contact the ground. Combined with real-time monitoring by the level, the device is ensured to be level. The rocker arm drives the worm gear transmission, which drives the threaded rod to rotate. With the guidance of the limit slide and the limit slide groove, the lifting plate rises and falls smoothly along the fixed plate. The height can be flexibly adjusted according to the steel frame specifications and welding requirements, reducing the frequency of steel frame position adjustments and significantly improving work efficiency.

[0013] 2. The positioning and clamping assembly, through mechanical transmission and flexible contact design, significantly improves the reliability and precision of welding operations. The dual-axis motor on the top plate drives two opposing lead screws to rotate synchronously, causing the T-shaped slider to slide precisely along the limiting T-shaped groove, thereby realizing the opening and closing action of the clamping plate. It can quickly adapt to the clamping needs of steel frames of different specifications. The rubber buffer layer on the inner side of the clamping plate has both anti-damage and anti-slip functions, which can not only prevent scratches on the surface of the steel frame during clamping, but also ensure the stability of the steel frame without displacement during welding by increasing the friction coefficient. This assembly works in conjunction with the support adjustment assembly and the height adjustment assembly to form a complete support system covering level calibration, height adjustment, and precise clamping. It effectively overcomes the defects of traditional support devices, such as single function and poor stability, and provides a systematic solution for steel frame welding in factory expansion, greatly improving welding quality and construction efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the support and adjustment component structure of this utility model;

[0016] Figure 3 This is one of the schematic diagrams of the height adjustment component structure of this utility model;

[0017] Figure 4 This is the second schematic diagram of the height adjustment component structure of this utility model;

[0018] Figure 5 This is one of the schematic diagrams of the positioning and clamping component structure of this utility model;

[0019] Figure 6 This is the second schematic diagram of the positioning and clamping component structure of this utility model.

[0020] In the diagram: 1. Support and adjustment assembly; 2. Height adjustment assembly; 3. Positioning and clamping assembly; 101. Base; 102. Side plate; 103. Level; 104. Universal wheel with brake; 105. Threaded sleeve; 106. Screw; 107. Adjusting block; 108. Stable chassis; 201. Fixed plate; 202. Lifting plate; 203. Limiting slide bar; 204. Threaded rod; 205. Worm gear; 206. Rotating rod; 207. Worm; 208. Rocker arm; 301. Top plate; 302. Limiting T-shaped slide groove; 303. Dual-axis motor; 304. Lead screw; 305. T-shaped slider; 306. Connecting plate; 307. Clamping plate. Detailed Implementation

[0021] 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.

[0022] Please see the appendix Figure 1 - Appendix Figure 3 A support device for welding steel frames in factory expansion projects includes a support adjustment assembly 1, a height adjustment assembly 2, and a positioning and clamping assembly 3. The support adjustment assembly 1 includes a base 101, with four casters 104 with brakes fixed at the bottom corners of the base 101. Side plates 102 are fixedly installed on both sides of the base 101, and each of the two sets of side plates 102 is equipped with a level 103. Threaded sleeves 105 are fixedly installed at both ends of each set of side plates 102, and threaded rods 106 are threadedly connected to the inside of the threaded sleeves 105. An adjusting block 107 is fixedly installed on the bottom circumferential surface of the screw 106, and a stabilizing base 108 is fixedly installed on the bottom surface of the screw 106. The bottom of the stabilizing base 108 is provided with anti-slip texture. The level 103 on the side plate 102, together with the threaded sleeve 105, the screw 106 and the stabilizing base 108, forms a four-point support structure. The height of a single support point can be precisely adjusted by adjusting the adjusting block 107 to ensure that the device remains level on uneven ground and avoids the problem of steel frame displacement caused by ground undulation in traditional supports.

[0023] The threaded sleeve 105 is vertically mounted on the side plate 102. By rotating the adjusting block 107, the screw 106 moves up and down along the threaded sleeve 105 to facilitate adjustment of the contact state between the stable base 108 and the ground. The level 103 realizes the horizontal adjustment of the device and is used to detect the horizontal state of the device. The height adjustment component 2 is mounted on the support adjustment component 1 and is used to adjust the overall height of the device. The positioning clamping component 3 is mounted on the top of the height adjustment component 2 and is used to clamp and position the steel frame. The threaded sleeve 105 and the screw 106 form a spiral lifting mechanism through vertical thread engagement. When the adjusting block 107 is rotated, the screw 106 moves linearly along the threaded sleeve 105, so that the stable base 108 is in close contact with the ground. With the real-time monitoring of the level 103, a stable foundation platform is provided for subsequent welding operations.

[0024] The height adjustment assembly 2 includes a fixed plate 201, a lifting plate 202, a limiting slide bar 203, a threaded rod 204, a worm gear 205, a rotating rod 206, a worm 207, and a rocker arm 208. The fixed plate 201 has two sets and is fixedly installed at both ends of the surface of the base 101. The lifting plate 202 is sleeved inside the fixed plate 201. The limiting slide bar 203 is fixedly installed on the outer wall of the lifting plate 202, and the inner wall of the fixed plate 201 has a limiting groove that matches the limiting slide bar 203. The fixed plate 201 and the lifting plate 202 of the height adjustment assembly 2 form a sliding pair through the limiting slide bar 203 and the limiting groove, which restricts the rotational freedom of the lifting plate 202 and ensures that it moves smoothly in the vertical direction. The worm 207 at both ends of the rotating rod 206 and the worm gear 205 at the bottom of the threaded rod 204 on both sides form a double worm gear 205 worm gear 207 transmission system, so that the lifting plates 202 on both sides rise and fall synchronously.

[0025] The threaded rod 204 is vertically mounted on the bottom surface inside the fixed plate 201 via a bearing seat and is threadedly engaged with the lifting plate 202. The rotating rod 206 is transversely inserted inside the fixed plate 201, with one end extending to the outer side of the right fixed plate 201. The worm gear 205 is fixedly mounted on the circumferential surface at the bottom end of the threaded rod 204. The worm 207 is mounted on the rotating rod 206 and meshes with the worm gear 205. The rocker arm 208 is connected to one end of the rotating rod 206. By rotating the rocker arm 208, the worm 207 and the worm gear 205 are driven to transmit power. The rocker arm 208 rotates the threaded rod 204. When the rocker arm 208 is rotated, the circular motion is converted into the rotational motion of the threaded rod 204 through the transmission of the worm gear 207 and the worm wheel 205. The linear motion of the lifting plate 202 is achieved by the threaded pair between the threaded rod 204 and the lifting plate 202. The worm gear 207 and worm wheel 205 transmission system has a self-locking function. When the rocker arm 208 is stopped, the current height position can be locked to prevent the height from changing due to external forces and to ensure the stability of the support height during the welding process.

[0026] Specifically, the shortcomings of existing support devices are effectively addressed through the synergistic effect of the support adjustment component 1 and the height adjustment component 2. In the support adjustment component 1, the universal casters 104 with brakes at the bottom of the base 101 facilitate flexible movement and fixation of the device. The level 103 on the side plate 102, together with the threaded sleeve 105, screw 106, adjusting block 107, and the stable base 108 with anti-slip texture, can precisely adjust the level of the device. Even when facing uneven ground, the screw 106 can be raised and lowered along the threaded sleeve 105 by rotating the adjusting block 107, thus adjusting the stable base 108. 08 is in contact with the ground, and the level 103 is used to detect in real time to ensure that the device is level and avoid the relative position of the steel frame to be welded shift due to uneven support. The height adjustment component 2 makes the height adjustment of the device more convenient. Turning the rocker arm 208 drives the threaded rod 204 to rotate through the worm gear 207 and worm wheel 205. Combined with the limiting slide bar 203 and the limiting slide groove, the lifting plate 202 can be raised and lowered stably along the fixed plate 201. The height can be flexibly adjusted according to the steel frame specifications and welding position, without the need to frequently move the steel frame, which greatly improves work efficiency and meets diverse support needs.

[0027] Please see the appendix Figure 1 and appendix Figure 4 - Appendix Figure 5 The positioning and clamping assembly 3 includes a top plate 301, a limiting T-shaped slide 302, a dual-axis motor 303, a lead screw 304, a T-shaped slider 305, a connecting plate 306, and a clamping plate 307. The top plate 301 is installed on the top of the two sets of lifting plates 202. The limiting T-shaped slide 302 is formed on the upper surface of the top plate 301. The dual-axis motor 303 is set in the limiting T-shaped slide 302. There are two lead screws 304, which are respectively connected to the two output shafts of the dual-axis motor 303. The two lead screws 304 have opposite thread directions, and the output shafts at both ends of the dual-axis motor 303 rotate in opposite directions. The dual-axis motor 303 of the positioning and clamping assembly 3 drives the two lead screws 304 with opposite thread directions to rotate synchronously, so that the T-shaped slider 305 moves towards or away from each other along the limiting T-shaped slide groove 302, realizing the synchronous opening and closing of the clamping plate 307. This symmetrical drive structure makes the clamping force evenly distributed on both sides of the steel frame, which can adapt to the stable clamping of the steel frame within a certain width range.

[0028] The T-shaped slider 305 is threadedly engaged with the lead screw 304, and the T-shaped slider 305 is slidably positioned within the limiting T-shaped groove 302. The connecting plate 306 is positioned on top of the T-shaped slider 305, and the clamping plate 307 is positioned on top of the connecting plate 306. The dual-axis motor 303 drives the two lead screws 304 to rotate, causing the T-shaped slider 305 to slide along the limiting T-shaped groove 302. The clamping plate 307 has a rubber buffer layer on its inner side. The engagement between the T-shaped slider 305 and the limiting T-shaped groove 302 not only restricts the vertical displacement of the slider but also provides a smooth sliding guide, ensuring the straightness of the movement trajectory of the clamping plate 307. The rubber buffer layer on the inner side of the clamping plate 307 is made of nitrile rubber with a diamond-shaped anti-slip texture on the surface, effectively preventing the steel frame from sliding and protecting its surface coating.

[0029] Specifically, the positioning and clamping assembly 3 further optimizes the welding operation experience and quality. The dual-axis motor 303, lead screw 304, T-shaped slider 305, connecting plate 306, and clamping plate 307 on the top plate 301 utilize the dual-axis motor 303 to drive the two lead screws 304 with opposite rotation directions to rotate, causing the T-shaped slider 305 to slide along the limiting T-shaped slide groove 302, which in turn causes the clamping plates 307 to move closer or further apart, achieving stable clamping of steel frames of different specifications. The rubber buffer layer on the inner side of the clamping plate 307 not only avoids damage to the surface of the steel frame during clamping but also enhances friction, keeping the steel frame stable during welding. This assembly, together with the support adjustment assembly 1 and the height adjustment assembly 2, exerts force from multiple dimensions such as clamping and fixing, height adaptation, and horizontal protection, solving the problems of poor welding quality and low efficiency caused by the simple structure and single function of existing devices, and providing a more reliable and efficient support solution for the welding of steel frames in factory expansion.

[0030] Working principle of this utility model: This utility model is a support device for welding steel frames in factory expansion. First, the device can be moved flexibly and positioned precisely through the support adjustment component 1. After moving the device to the work area using the four universal casters 104 with brakes at the bottom corners of the base 101, the position is locked by the braking device. Then, the level 103 on the side plate 102 is observed. By rotating the adjustment block 107, the screw 106 is raised and lowered along the threaded sleeve 105 to adjust the contact state between the stable base 108 and the ground until the level 103 shows that the device is in a horizontal state, ensuring the stability of the support and preventing the steel frame to be welded from shifting due to uneven support. Next, the height adjustment component 2 is activated. Rotating the rocker arm 208 drives the worm gear 207 on the rotating rod 206 to rotate. Through the meshing transmission between the worm gear 207 and the worm wheel 205, the threaded rod 204 is rotated, driving the lifting plate. 202 moves linearly along the limiting groove on the inner wall of the fixed plate 201 to achieve precise height adjustment of the device to adapt to different specifications of steel frames and welding position requirements. Finally, the positioning and clamping component 3 is operated, and the dual-axis motor 303 is started to drive the two screws 304 with opposite screw directions to rotate synchronously, so that the T-shaped slider 305 moves in opposite directions along the limiting T-shaped groove 302. The clamping plate 307 is closed through the connecting plate 306, and the steel frame is firmly clamped by the inner rubber buffer layer to prevent displacement during welding. At this time, high-precision welding operations can be performed on the steel frame. After the operation is completed, the above components can be reversed to quickly disassemble the device. Through the coordinated operation of the three components, this device realizes the fully automated control of the entire process from movement and positioning, horizontal adjustment, height adaptation to precise clamping, which significantly improves the efficiency and quality of steel frame welding for factory expansion. At this point, the entire process is completed.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support device for welding steel frames in factory expansion projects, comprising a support adjustment assembly (1), a height adjustment assembly (2), and a positioning clamping assembly (3), characterized in that: The support adjustment assembly (1) includes a base (101), with four corners of the base (101) fixedly provided with universal casters (104) with brakes. Side plates (102) are fixedly installed on both sides of the base (101). A level (103) is provided on each of the two sets of side plates (102). Threaded sleeves (105) are fixedly installed at both ends of the two sets of side plates (102). A screw (106) is connected to the internal thread of the threaded sleeve (105). An adjustment block (107) is fixedly installed on the bottom circumferential surface of the screw (106), and a stable base (108) is fixedly installed on the bottom surface of the screw (106). The bottom of the stable base (108) is provided with anti-slip texture.

2. The support device for welding steel frames in factory expansion as described in claim 1, characterized in that: The threaded sleeve (105) is vertically mounted on the side plate (102). By rotating the adjusting block (107), the screw (106) can be raised and lowered along the threaded sleeve (105) to facilitate the adjustment of the contact state between the stable chassis (108) and the ground. The level (103) realizes the horizontal adjustment of the device and is used to detect the horizontal state of the device. The height adjustment component (2) is mounted on the support adjustment component (1) and is used to adjust the overall height of the device. The positioning clamping component (3) is mounted on the top of the height adjustment component (2) and is used to clamp and position the steel frame.

3. The support device for welding steel frames in factory expansion according to claim 2, characterized in that: The height adjustment assembly (2) includes a fixed plate (201), a lifting plate (202), a limiting slide bar (203), a threaded rod (204), a worm gear (205), a rotating rod (206), a worm (207), and a rocker arm (208). The fixed plate (201) is provided with two sets and is fixedly installed at both ends of the surface of the base (101). The lifting plate (202) is sleeved on the inner side of the fixed plate (201). The limiting slide bar (203) is fixedly installed on the outer wall of the lifting plate (202), and the inner wall of the fixed plate (201) is provided with a limiting slide groove that matches the limiting slide bar (203).

4. The support device for welding steel frames in factory expansion according to claim 3, characterized in that: The threaded rod (204) is vertically mounted on the bottom surface inside the fixed plate (201) via a bearing seat and is threadedly engaged with the lifting plate (202). The rotating rod (206) is transversely inserted inside the fixed plate (201) and one end extends to the outside of the right fixed plate (201). The worm gear (205) is fixedly mounted on the circumferential surface at the bottom end of the threaded rod (204). The worm (207) is mounted on the rotating rod (206) and meshes with the worm gear (205). The rocker arm (208) is connected to one end of the rotating rod (206). By rotating the rocker arm (208), the worm (207) and the worm gear (205) are driven to rotate the threaded rod (204).

5. The support device for welding steel frames in factory expansion according to claim 1, characterized in that: The positioning and clamping assembly (3) includes a top plate (301), a limiting T-shaped slide groove (302), a dual-axis motor (303), a lead screw (304), a T-shaped slider (305), a connecting plate (306), and a clamping plate (307). The top plate (301) is installed on the top of two sets of lifting plates (202). The limiting T-shaped slide groove (302) is opened on the upper surface of the top plate (301). The dual-axis motor (303) is set in the limiting T-shaped slide groove (302). There are two lead screws (304) and they are respectively connected to the two output shafts of the dual-axis motor (303). The threads of the two lead screws (304) are turned in opposite directions. The two output shafts of the dual-axis motor (303) turn in opposite directions.

6. The support device for welding steel frames in factory expansion according to claim 5, characterized in that: The T-shaped slider (305) is threadedly engaged with the lead screw (304), and the T-shaped slider (305) is slidably disposed within the limiting T-shaped groove (302). The connecting plate (306) is disposed on the top of the T-shaped slider (305), and the clamping plate (307) is disposed on the top of the connecting plate (306). The dual-axis motor (303) drives the two lead screws (304) to rotate, causing the T-shaped slider (305) to slide along the limiting T-shaped groove (302). The clamping plate (307) has a rubber buffer layer on its inner side.

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