Steel beam welding and fixing clamp for steel structure building and control system

Abstract

The invention relates to a steel structure building steel beam welding fixing clamp and a control system. The steel structure building steel beam welding fixing clamp comprises a platform, a bearing plate, a first baffle, a second baffle, a welding clamping assembly and a driving assembly. Wherein the two bearing plates are distributed on the upper surface of the platform left and right; the first baffle and the second baffle are perpendicularly and fixedly connected to the front end and the rear end of the upper surface of the bearing plate correspondingly. The welding clamping assembly is arranged on the bearing plate in the front-back direction and installed between the first baffle and the second baffle. After two sections of steel beams to be welded are placed on the two bearing plates correspondingly, the two sections of steel beams can be fixed through the welding clamping assemblies correspondingly, then the two sections of steel beams can be driven by the driving assembly to move oppositely, finally the ends of the two sections of steel beams abut against each other, welding equipment is matched for welding, and butt joint of the steel beams can be completed; and the situation of dislocation is avoided while quick butt joint is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of fixtures, in particular to a welding fixture and a control system for steel beams of steel structure buildings. Background Art

[0002] A steel structure building is a building whose load-bearing structure is made of construction steel. The load-bearing structure is composed of beams, columns, trusses and other components made of steel sections and steel plates. It is composed of enclosing structures such as roofs, floors and walls. The main components of a steel structure building are steel beams. With the improvement of people's requirements for building quality, a special type of combined honeycomb beam has gradually been used in building manufacturing. It is made of rolled I-beams that are flame cut and then staggered welded. Since the beam height after welding is greater than the original I-beam, the beam's bearing capacity and bending stiffness are improved.

[0003] During the processing of steel beams, due to the weight and structural limitations of the steel beams, the following problems exist during the actual docking operation: the steel beams are prone to misalignment, affecting the processing efficiency and resulting in a high rate of defective products. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a steel structure building steel beam welding fixture and control system to solve the problem in the prior art that steel beams are prone to misalignment when being joined together, which affects processing efficiency.

[0005] To achieve the above-mentioned object, the present invention provides a steel structure building steel beam welding fixture, comprising a platform, a bearing plate, a first baffle, a second baffle, a welding clamping assembly and a driving assembly;

[0006] There are two supporting plates distributed on the upper surface of the platform on the left and right sides;

[0007] The first baffle and the second baffle are respectively vertically fixedly connected to the front and rear ends of the upper surface of the supporting plate;

[0008] The welding clamping assembly is arranged on the carrying plate along the front-to-back direction and installed between the first baffle and the second baffle;

[0009] The driving assembly is mounted on the carrier plate and is used to drive the two carrier plates to move in opposite directions simultaneously in the left and right directions.

[0010] By adopting this technical solution, after the two sections of steel beam to be welded are placed on two supporting plates respectively, they can be fixed separately by welding clamping components, and then the two sections of steel beam can be driven to move toward each other by the driving component, and finally the ends of the two sections of steel beam are made to abut against each other. The welding can be carried out in conjunction with welding equipment to complete the docking of the steel beams, achieve rapid docking while avoiding misalignment, improve welding efficiency and reduce the production of defective products.

[0011] Further, the welding clamping assembly includes an electric push rod located at one end of the bearing plate close to the second baffle, at least two clamping plates slidably arranged on the bearing plate in the front-rear direction at one end close to the first baffle, and rollers rotatably connected to the clamping plates and the first baffle;

[0012] The extending end of the electric push rod abuts against the rear end of the rearmost clamping plate, and the other end of the electric push rod is fixedly connected to the second baffle;

[0013] The rollers are rotatably connected to the opposite side walls of adjacent clamping plates and the opposite side walls of the foremost clamping plate and the first baffle, and the rollers protrude from the surfaces of the clamping plates and the first baffle.

[0014] By adopting this technical solution, at least two clamping plates on the bearing plate cooperate with the first baffle to simultaneously clamp and position at least two groups of steel beams before welding. At the same time, since rollers are provided on the opposite side walls of adjacent clamping plates and on the opposite side walls of the clamping plates and the first baffle, when any group of opposite steel beams are welded against each other, it does not affect the continued movement of the bearing plate to complete the continued docking and subsequent welding of other groups of opposite steel beams, thereby greatly increasing the docking efficiency of the steel beams and being able to adapt to the situation where a large number of steel beams need to be docked.

[0015] Further, the clamping plate further includes a second chute opened on the bearing plate, a second slider slidably connected inside the second chute and fixed to the clamping plate, a guide rod arranged inside the second chute and passing through the second slider, and a return spring sleeved on the guide rod;

[0016] The clamping plate is slidably connected to the bearing plate through the cooperation of the second slider with the second chute and the guide rod;

[0017] The return springs are respectively arranged between adjacent clamping plates and between the foremost clamping plate and the first baffle, and both ends of the return spring are respectively fixedly connected to the two second sliders at the bottom of adjacent clamping plates and the bottom of the foremost clamping plate and the bearing plate.

[0018] By adopting this technical solution, a second slider is arranged at the bottom of the clamping plate to cooperate with the second chute and the guide rod to increase the sliding stability of the clamping plate; the setting of the return spring, in addition to cooperating with the electric push rod to increase the clamping force on the steel beam to increase the clamping stability, also makes the clamping plate and the extending end of the electric push rod indirectly connected. Before the steel beam is placed, the electric push rod can be used to pull the rearmost clamping plate to increase the distance between adjacent clamping plates and between the foremost clamping plate and the first baffle to adapt to the placement of the steel beam, without the need for manual adjustment of the distance between the clamping plates, thereby reducing the difficulty of manual operation for the simultaneous docking of multiple groups of steel beams.

[0019] Furthermore, the welding clamping assembly further includes a push ring and a fixed seat;

[0020] The push ring is connected to the extended end of the electric push rod and is used to abut against the rear end of the last clamping plate;

[0021] The fixed seat is fixed at the other end of the electric push rod and is fixedly connected to the second baffle through screws.

[0022] By adopting this technical solution, the push ring increases the support area of the extended end of the electric push rod, thereby increasing the stability of the support for the last clamping plate; the fixed seat provides a connection position, facilitating the connection between the electric push rod and the second baffle.

[0023] Furthermore, it further includes a first chute opened in the platform in the left - right direction and a first slider slidably disposed in the first chute;

[0024] Wherein the first slider is fixedly connected to the bottom of the bearing plate.

[0025] By adopting this technical solution, the cooperation between the first slider and the first chute is increased, enabling the bearing plate to slide stably along the opening direction of the first chute on the platform.

[0026] Furthermore, the driving assembly includes a driving motor, a lead screw, a bearing ring, and a fixing ring;

[0027] The driving motor is fixedly installed on one side of the platform through the fixing ring;

[0028] One end of the lead screw is coaxially connected to the output shaft of the driving motor, the other end of the lead screw extends into the interior of the first chute, and is rotatably connected to the inner wall of the first chute through the bearing ring;

[0029] The lead screw simultaneously penetrates through the first sliders on the lower sides of the two bearing plates, and the thread directions of the thread fits with the two first sliders are opposite.

[0030] By adopting this technical solution, after the driving motor is started, it can drive the lead screw to rotate. The rotation of the lead screw can drive the first slider to slide along the first chute, thereby driving the bearing plate to move. Also, because the first sliders at the bottoms of the two bearing plates are thread - fitted with the lead screw in different directions, the purpose of driving the two bearing plates to move towards each other or in opposite directions can be achieved.

[0031] Furthermore, universal wheels are provided at the bottom of the platform.

[0032] By adopting this technical solution, the welding fixture has a moving function.

[0033] The present application also provides a control system for a steel structure building steel beam welding and fixing jig. The control system includes a central control unit, a position sensor, an angle sensor, and a display interface that are electrically connected;

[0034] The central control unit is connected to the electric push rod and the drive motor;

[0035] The position sensor is used to monitor the position of the steel beam and the clamping position of the clamping plate; the angle sensor is used to monitor the angle of the steel beam;

[0036] After receiving the data from the position sensor and the angle sensor, the central control unit automatically adjusts the driving force of the electric push rod and the rotational speed of the drive motor according to the control algorithm, so that the steel beam is in the precise docking position, and the real-time operation status is fed back through the display interface.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. When the present invention is used, a plurality of steel beams are placed on two bearing plates according to the situation of being distributed in pairs, so that the center of gravity of the steel beam is located on the bearing plate, and the steel beams on the same bearing plate are separated by the clamping plate. Then, the electric push rod is started, and the push ring moves towards the first baffle, so as to push the two clamping plates towards the first baffle, so as to clamp and fix the steel beam between the two clamping plates and between the clamping plate and the first baffle, realizing the rapid positioning between the steel beams to be welded and facilitating the simultaneous welding of multiple groups of steel beams.

[0039] 2. When the present invention is used, after the steel beam is clamped and fixed, the drive motor is started to drive the lead screw to rotate around the bearing ring inside the first chute. Since a threaded hole adapted to the lead screw is provided inside the first slider, the first slider can be driven to slide left and right inside the first chute, thereby driving the two bearing plates to approach each other, realizing the rapid docking of the steel beam and avoiding misalignment, improving the welding efficiency and reducing the generation of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic diagram of the overall structure of the steel structure building steel beam welding and fixing jig and the control system in the present invention;

[0041] Figure 2 is a schematic diagram of the bearing plate and its component structure of the steel structure building steel beam welding and fixing jig and the control system in the present invention;

[0042] Figure 3 is a schematic diagram of the welding and clamping assembly of the steel structure building steel beam welding and fixing jig and the control system in the present invention;

[0043] Figure 4Schematic diagram of the driving component of the steel beam welding and fixing fixture and control system in the present invention.

[0044] Description of the reference numerals: 1, platform; 2, bearing plate; 3, first baffle; 4, second baffle; 5, welding clamping assembly; 501, second chute; 502, second slider; 503, guide rod; 504, return spring; 505, clamping plate; 506, roller; 6, first chute; 7, driving assembly; 701, driving motor; 702, lead screw; 703, bearing ring; 704, fixed ring; 8, electric push rod; 9, push ring; 10, fixed seat; 11, first slider; 12, universal wheel. Detailed implementation manners

[0045] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0046] Please refer to the attached Figure 1 , the present invention provides a steel beam welding and fixing fixture for a steel structure building, including a platform 1, a bearing plate 2, a first baffle 3, a second baffle 4, a welding clamping assembly 5 and a driving assembly 7; wherein two bearing plates 2 are arranged in a left-right distribution on the upper surface of the platform 1; the first baffle 3 and the second baffle 4 are respectively vertically and fixedly connected to the front and rear ends of the upper surface of the bearing plate 2; the welding clamping assembly 5 is arranged on the bearing plate 2 in the front-rear direction and is installed between the first baffle 3 and the second baffle 4; the driving assembly 7 is installed on the bearing plate 2 and is used to drive the two bearing plates 2 to move in opposite directions simultaneously in the left-right direction; after the two steel beams to be welded are respectively placed on the two bearing plates 2, they can be respectively fixed by the welding clamping assembly 5, and then the two steel beams can be driven to move towards each other by the driving assembly 7, and finally the ends of the two steel beams are abutted against each other, and the butt joint of the steel beams can be completed by cooperating with welding equipment, realizing rapid butt joint while avoiding dislocation, improving the welding efficiency while reducing the generation of defective products.

[0047] Further, please refer to the attached Figures 2 - 3, the welding clamping assembly 5 includes an electric push rod 8 located at one end of the bearing plate 2 close to the second baffle 4, at least two clamping plates 505 slidably arranged on the bearing plate 2 in the front-back direction at one end close to the first baffle 3, and rollers 506 rotatably connected to the clamping plates 505 and the first baffle 3; the extending end of the electric push rod 8 abuts against the rear end of the rearmost clamping plate 505, and the other end of the electric push rod 8 is fixedly connected to the second baffle 4; the rollers 506 are rotatably connected to the opposite side walls of adjacent clamping plates 505 and the opposite side walls of the foremost clamping plate 505 and the first baffle 3, and the rollers 506 protrude from the surfaces of the clamping plates 505 and the first baffle 3; at least two clamping plates 505 on the bearing plate 2 cooperate with the first baffle 3 to simultaneously clamp and position at least two groups of steel beams before welding. At the same time, since rollers 506 are provided on the opposite side walls of adjacent clamping plates 505 and on the opposite side walls of the clamping plates 505 and the first baffle 3, when any group of opposite steel beams are welded against each other, it does not affect the continuous movement of the bearing plate 2 to complete the continuous docking and subsequent welding of other groups of opposite steel beams. In this way, the docking efficiency of the steel beams can be greatly increased, and it can adapt to the situation where a large number of steel beams need to be docked.

[0048] Further, please refer to the appendix Figures 2 - 3 , the clamping plate 505 further includes a second chute 501 opened on the bearing plate 2, a second slider 502 slidably connected inside the second chute 501 and fixed to the clamping plate 505, a guide rod 503 arranged inside the second chute 501 and penetrating the second slider 502, and a return spring 504 sleeved on the guide rod 503; the clamping plate 505 is slidably connected to the bearing plate 2 through the cooperation of the second slider 502 with the second chute 501 and the guide rod 503; the return springs 504 are respectively arranged between adjacent clamping plates 505 and between the foremost clamping plate 505 and the first baffle 3, and the two ends of the return spring 504 are respectively fixedly connected to the two second sliders 502 at the bottom of adjacent clamping plates 505 and the bottom of the foremost clamping plate 505 and the bearing plate 2; the second slider 502 is arranged at the bottom of the clamping plate 505 to cooperate with the second chute 501 and the guide rod 503 to increase the sliding stability of the clamping plate 505; the arrangement of the return spring 504, in addition to cooperating with the electric push rod 8 to increase the clamping force on the steel beam to increase the clamping stability, also makes the clamping plate 505 and the extending end of the electric push rod 8 indirectly connected. Before the steel beam is placed, the electric push rod 8 can be used to pull the rearmost clamping plate 505 to increase the distance between adjacent clamping plates 505 and between the foremost clamping plate 505 and the first baffle 3 to adapt to the placement of the steel beam, without the need for manual adjustment of the distance between the clamping plates 505, thereby reducing the difficulty of manual operation for the simultaneous docking of multiple groups of steel beams.

[0049] Further, please refer to the appendix Figure 3, the welding clamping assembly 5 further includes a push ring 9 and a fixed seat 10; the push ring 9 is connected to the extended end of the electric push rod 8 and is used to abut against the rear end of the last clamping plate 505; the fixed seat 10 is fixed to the other end of the electric push rod 8 and is fixedly connected to the second baffle 4 by screws; the push ring 9 increases the supporting area of the extended end of the electric push rod 8, thereby increasing the stability of the support for the last clamping plate 505; the fixed seat 10 provides a connection position, facilitating the connection between the electric push rod 8 and the second baffle 4.

[0050] Further, please refer to the appendix Figures 1 - 2 , it further includes a first chute 6 opened on the platform 1 in the left-right direction and a first slider 11 slidably disposed in the first chute 6; wherein the first slider 11 is fixedly connected to the bottom of the bearing plate 2; increasing the cooperation between the first slider 11 and the first chute 6 enables the bearing plate 2 to slide stably on the platform 1 along the opening direction of the first chute 6.

[0051] Further, please refer to the appendix Figure 1 、 2 and 4, the driving assembly 7 includes a driving motor 701, a lead screw 702, a bearing ring 703 and a fixing ring 704; the driving motor 701 is fixedly installed on one side of the platform 1 through the fixing ring 704; one end of the lead screw 702 is coaxially connected to the output shaft of the driving motor 701, and the other end of the lead screw 702 extends into the interior of the first chute 6 and is rotatably connected to the inner wall of the first chute 6 through the bearing ring 703; the lead screw 702 simultaneously penetrates through the first sliders 11 on the lower sides of the two bearing plates 2, and the thread directions of the thread fits with the two first sliders 11 are opposite; after the driving motor 701 is started, it can drive the lead screw 702 to rotate, and the rotation of the lead screw 702 can drive the first slider 11 to slide along the first chute 6, thereby driving the bearing plate 2 to move. Also, because the first sliders 11 at the bottoms of the two bearing plates 2 are thread-fitted with the threads on different directions of the lead screw 702, the purpose of driving the two bearing plates 2 to move towards each other or in opposite directions can be achieved.

[0052] Further, please refer to the appendix Figure 1 , universal wheels 12 are provided at the bottom of the platform 1; enabling the welding fixture to have a moving function.

[0053] The present invention also provides a control system for a welding fixture for steel structure building steel beams. The control system includes a central control unit, a position sensor, an angle sensor and a display interface that are electrically connected; the central control unit is connected to the electric push rod 8 and the driving motor 701; the position sensor is used to monitor the position of the steel beam and the clamping position of the clamping plate 505; the angle sensor is used to monitor the angle of the steel beam; after receiving the data from the position sensor and the angle sensor, the central control unit automatically adjusts the driving force of the electric push rod 8 and the rotation speed of the driving motor 701 according to the control algorithm, so that the steel beam is in the precise docking position, and real-time operation status feedback is performed through the display interface.

[0054] Furthermore, the control algorithm includes the driving force F of the electric push rod 8 clamp :

[0055] F clamp =K1·(P target -P current )

[0056] Among them, P target is the target steel beam position, P current is the current clamping position of the clamping plate 505, K1 is the proportional constant;

[0057] The speed of the driving motor 701 ω motor :

[0058] ω motor =K2·(P target -P current )-K3·θ beam

[0059] Among them, θ beam is the steel beam angle, K2 and K3 are constants.

[0060] Furthermore, the central control unit increases or decreases the pushing force F of the electric push rod 8 according to the remote control instruction. clamp and the speed of the driving motor 701 ω motor To optimize the steel beam docking process, remote control instructions are executed through the following formulas:

[0061] F clamp ←F clamp +ΔF or F clamp ←F clamp -ΔF

[0062] ω motor ←ω motor +Δω or ω motor ←ω motor -Δω

[0063] Among them, ΔF and Δω are the increase and decrease values of the pushing force of the electric push rod 8 and the speed of the drive motor 701 respectively; the position sensor is a linear displacement sensor (such as a linear variable differential transformer), which is used to measure the current position of the clamping plate 505; the angle sensor is a photoelectric angle sensor or a rotary encoder, which is used to measure the angle of the steel beam in real time; in addition, a current sensor is also provided, which is a Hall effect sensor for monitoring the current value.

[0064] The control system also includes a set of wireless communication modules, which perform wireless data transmission with remote terminal devices. The remote terminal devices receive the operation data and status information of the welding fixture through the wireless network, allowing the operator to adjust the working parameters of the fixture in real time remotely and enabling fault detection and alarm, improving the intelligent operation level of the device, reducing manual intervention, and enhancing construction efficiency and safety. Among them, the operation data and status information of the welding fixture are completed through a wireless control algorithm. The wireless control algorithm includes: obtaining the current status information of the device and performing real-time updates of the driving force of the electric push rod 8 and the rotation speed of the driving motor 701 through the following formula:

[0065] F clamp = K1·(P target - P current )

[0066] ω motor = K2·(P target - P current ) - K3·θ beam

[0067] Among them, the references of each symbol are the same as those of the same symbol in the previous text;

[0068] According to the control instructions sent by the remote terminal device, the driving force of the electric push rod 8 and the rotation speed of the driving motor 701 are adjusted in real time. The instructions include increasing the thrust of the electric push rod 8, decreasing the thrust of the electric push rod 8, increasing the rotation speed of the driving motor 701, decreasing the rotation speed of the driving motor 701, etc. The adjustment formulas are as follows:

[0069] F clamp ← F clamp + ΔF or F ← F clamp - ΔF

[0070] ω motor ← ω motor + Δω or ω motor ← ω motor - Δω

[0071] Among them, the references of each symbol are the same as those of the same symbol in the previous text;

[0072] Receive the device status through the wireless communication module and trigger the alarm mechanism when a fault occurs. The alarm condition is that the device has current overlimit or other abnormal phenomena:

[0073] If I_ current > I max , then trigger the alarm;

[0074] Among them, I current is the current current, I maxis the current safety threshold; the wireless communication module uses a Wi-Fi module or a Bluetooth module for data transmission with a remote terminal device.

[0075] The present invention has been described in detail with reference to the accompanying drawings and embodiments. Those of ordinary skill in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation to the present invention, and the protection scope of the present invention will be defined by the scope of the appended claims.

Claims

1. A steel structure building steel beam welding and fixing fixture, characterized in that, It includes a platform, a bearing plate, a first baffle, a second baffle, a welding clamping assembly and a driving assembly; Among them, two bearing plates are arranged horizontally on the upper surface of the platform; The first baffle and the second baffle are respectively vertically and fixedly connected to the front and rear ends of the upper surface of the bearing plate; The welding clamping assembly is arranged on the bearing plate in the front-rear direction and is installed between the first baffle and the second baffle; The driving assembly is installed on the bearing plate and is used to drive the two bearing plates to move in opposite directions simultaneously in the left-right direction.

2. The steel structure building steel beam welding and fixing fixture according to claim 1, wherein: The welding clamping assembly includes an electric push rod located at one end of the bearing plate close to the second baffle, at least two clamping plates slidably arranged on the bearing plate in the front-rear direction at one end close to the first baffle, and rollers rotatably connected to the clamping plates and the first baffle; The extending end of the electric push rod abuts against the rear end of the last clamping plate, and the other end of the electric push rod is fixedly connected to the second baffle; The rollers are rotatably connected to the opposite side walls of adjacent clamping plates and the opposite side walls of the frontmost clamping plate and the first baffle, and the rollers protrude from the surfaces of the clamping plates and the first baffle.

3. The steel structure building steel beam welding and fixing fixture according to claim 2, wherein: The clamping plate further includes a second chute opened on the bearing plate, a second slider slidably connected inside the second chute and fixed to the clamping plate, a guide rod arranged inside the second chute and penetrating the second slider, and a return spring sleeved on the guide rod; The clamping plate is slidably connected to the bearing plate through the cooperation of the second slider with the second chute and the guide rod; The return springs are respectively arranged between adjacent clamping plates and between the frontmost clamping plate and the first baffle, and both ends of the return spring are respectively fixedly connected to the two second sliders at the bottom of adjacent clamping plates and the bottom of the frontmost clamping plate and the bearing plate.

4. The steel structure building steel beam welding and fixing fixture according to claim 2, characterized in that: The welding clamping assembly further includes a push ring and a fixed seat; The push ring is connected to the extending end of the electric push rod for abutting against the rear end of the last clamping plate; The fixed seat is fixed to the other end of the electric push rod and is fixedly connected to the second baffle through screws.

5. The steel structure building steel beam welding and fixing fixture according to claim 1, wherein: It further includes a first chute opened on the platform in the left-right direction and a first slider slidably arranged in the first chute; Among them, the first slider is fixedly connected to the bottom of the bearing plate.

6. The steel structure building steel beam welding and fixing jig according to claim 5, characterized in that: The driving assembly includes a driving motor, a lead screw, a bearing ring and a fixing ring; The driving motor is fixedly installed on one side of the platform through the fixing ring; One end of the lead screw is coaxially connected to the output shaft of the driving motor, and the other end of the lead screw extends into the first chute and is rotatably connected to the inner wall of the first chute through the bearing ring; The lead screw simultaneously penetrates the first sliders on the lower sides of the two bearing plates, and the thread directions of the lead screw in cooperation with the two first sliders are opposite.

7. The steel structure building steel beam welding and fixing jig according to claim 1, characterized in that: Universal wheels are arranged at the bottom of the platform.

8. A control system for a steel structure building steel beam welding and fixing fixture according to any one of claims 1-7, characterized in that: The control system includes a central control unit, a position sensor, an angle sensor and a display interface which are electrically connected; The central control unit is connected to the electric push rod and the driving motor; The position sensor is used to monitor the position of the steel beam and the clamping position of the clamping plate; the angle sensor is used to monitor the angle of the steel beam; After receiving the data from the position sensor and the angle sensor, the central control unit automatically adjusts the driving force of the electric push rod and the rotational speed of the drive motor according to the control algorithm, so that the steel beam is in the precise docking position, and the real-time operation status feedback is carried out through the display interface.

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