Auxiliary welding equipment for cast-in-situ bored pile reinforcement cage and welding method

Abstract

The invention relates to the technical field of welding auxiliary equipment, and particularly discloses a cast-in-situ bored pile steel reinforcement framework welding auxiliary device and a welding method.The cast-in-situ bored pile steel reinforcement framework welding auxiliary device comprises a bottom frame and a bracket fixedly installed at the top of the bottom frame and used for bearing a plurality of main reinforcements at the bottom, a linear sliding table unit is arranged at the top of the bottom frame, and a supporting ring is arranged on the outer side of the linear sliding table unit; self-positioning clamping units are symmetrically distributed on the left side and the right side of the supporting ring, and a self-laying unit is arranged at the top of the supporting ring. By arranging the bracket and the self-positioning clamping unit, the main reinforcements are accurately positioned, main reinforcement positioning errors caused by manual operation are effectively avoided, uniform circumferential distribution is ensured, the self-laying unit can automatically lay the reinforcing hoops at equal intervals, the attaching positions of the reinforcing hoops and the main reinforcements are accurately controlled through the extrusion assembly, manual experience-based positioning is not needed, and the production efficiency is improved. The positioning precision is greatly improved, and the uniformity of the overall structural strength of the reinforcement cage is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding auxiliary equipment, and more specifically, to a bored cast-in-place pile steel bar skeleton welding auxiliary equipment and a welding method. Background Art

[0002] Bored piles are a foundation construction technology widely used in construction projects, especially in soft soil foundations, high water areas or places where deep foundations are required. The basic principle is to mechanically form holes (i.e., drill holes), then place a steel skeleton in the hole and pour concrete to form a pile body. The steel skeleton is an important part of bored piles, which provides the necessary bending strength and integrity for the pile body. The steel skeleton is usually composed of main bars, stirrups and reinforcing bars.

[0003] 1. At present, in the traditional welding process of bored pile steel skeleton, multiple workers are required to cooperate closely. First, when laying the four main bars at the bottom, it is necessary to ensure that their circumferential distribution is uniform and the position is accurate. However, it is difficult to ensure highly consistent spacing and angles through manual operation, resulting in large errors in the positioning of the main bars. Subsequently, the reinforcement hoops are laid, and several reinforcement hoops are manually placed on the bottom main bars one by one at the specified intervals, and then welded and fixed. This process not only takes a lot of time, but also depends entirely on the workers' experience and judgment in the positioning of the reinforcement hoops and the main bars. Welding position deviations often occur, affecting the uniformity of the overall structural strength of the steel cage. In addition, after the reinforcement hoops are fixed, the workers weld the remaining main bars circumferentially on the outside of the reinforcement hoops in turn. Due to limited operating space and lack of precise positioning assistance, the welding points between the main bars and the reinforcement hoops are unevenly distributed, and the strength of some welding points is insufficient, which seriously affects the quality stability of the steel cage. At the same time, the communication cost is high during the collaboration of multiple people. Once the coordination fails, rework is very likely to occur, further reducing the construction efficiency.

[0004] 2. Although there is currently a method of welding the steel cage skeleton through a roll welding machine, since the roll welding machine is mainly used for welding stirrups and main bars, it is difficult for the roll welding machine to directly complete the laying and welding operations of the reinforcement hoop when welding the steel cage. Therefore, in actual operation, a manual assisted method is still required. First, the pre-made reinforcement hoop is manually inserted into the steel cage, and then the reinforcement hoop is fixed by welding before the roll welding operation can be performed. However, this method also adds additional labor costs and time costs. The process of manually inserting the reinforcement hoop and welding it is not only cumbersome, but also difficult to ensure the relative position accuracy of the reinforcement hoop and the main bar, resulting in uneven welding quality during subsequent roll welding. At the same time, this manual intervention disrupts the original automation process of the roll welding machine. Frequent manual operation and machine operation switching can easily cause equipment failure, extend the entire steel cage production cycle, reduce welding efficiency, and cannot meet the needs of large-scale engineering construction. Summary of the invention

[0005] The present invention provides bored cast-in-place pile reinforcement skeleton welding auxiliary equipment to solve the above technical problems.

[0006] The present invention provides a bored cast-in-place pile steel bar skeleton welding auxiliary equipment, comprising a base frame, a bracket fixedly installed on the top of the base frame for supporting a plurality of main bars at the bottom, a linear slide unit is arranged on the top of the base frame, a support ring is arranged on the outside of the linear slide unit, self-positioning clamping units are symmetrically distributed on the left and right sides of the support ring, a self-laying unit is arranged on the top of the support ring, the self-laying unit comprises a plurality of laying components equidistantly arranged on the left and right for laying reinforcement hoops and an extrusion component for controlling the laying components, the self-positioning clamping unit comprises two left-right symmetrical positioning components and a driving component for driving the positioning component, the positioning component is used to position the main bars and make the main bars close to the reinforcement hoop, and a rotary multi-head welding unit is arranged on the left side of the left positioning component.

[0007] The laying assembly includes two return springs fixedly installed on the top of the support ring and symmetrically arranged front and back. A lifting frame is installed on the top of the two return springs. Two symmetrical card support pulleys are rotatably installed between the left and right inner walls of the lifting frame. An annular groove is provided on the circumferential surface of the card support pulley. The reinforcing hoop is clamped in the annular groove of the card support pulley to support and limit the reinforcing hoop.

[0008] The support ring drives the laying assembly to move along the axial direction of the main reinforcement and lay the reinforcement hoops at equal intervals. During laying, the extrusion assembly controls the lifting frame to move downward, so that the card support pulley drives the bottom of the reinforcement hoop to fit several main reinforcements at the bottom, and then the rotary multi-head welding unit welds the reinforcement hoop to the main reinforcement.

[0009] Furthermore, the linear slide unit includes a plurality of control components fixedly installed on the bottom of the base frame and arranged linearly along the axis of the support ring. The output end of the control component slides through the base frame and is fixedly installed with a lifting support plate. The top of the rightmost lifting support plate is fixedly installed with a slide rail, and the tops of the remaining lifting support plates are all in contact with the slide rail to provide upward support force for the slide rail. A plurality of electric slides are slidably connected to the outside of the slide rail, and a fixing rod is fixedly installed on the top of the electric slide. The two fixing rods in the middle are fixedly connected to the inner wall of the support ring.

[0010] Furthermore, the laying assembly also includes two limit rods fixedly installed at the bottom of the lifting frame and symmetrically arranged front to back, and the bottom ends of the limit rods slide through the top wall of the support ring.

[0011] Furthermore, the extrusion assembly includes two mounting sleeves fixedly installed on the inner wall of the top of the support ring and symmetrically arranged on the left and right, a screw rod is rotatably installed between the two mounting sleeves, the outer side of the screw rod is threadedly connected with a threaded sleeve, a wedge rod is fixedly installed on the bottom of the threaded sleeve, a pressure block is fixedly installed on the bottom end of the limit rod, and the two pressure blocks at the bottom ends of the two limit rods on the same lifting frame are symmetrical to each other, and a wedge-shaped surface matching the wedge rod is provided on the side of the pressure block close to the wedge rod.

[0012] Furthermore, the driving assembly includes a connecting ring, and the extrusion assembly also includes a support rail fixedly installed on the inner wall of the connecting ring through a cross bar and arranged horizontally, a support slider is slidably connected in the support rail, and the top of the support slider is fixedly connected to the wedge rod.

[0013] Furthermore, the self-positioning fixing unit also includes a plurality of guide rods distributed in a circle along the axial direction of the support ring, the uppermost guide rod rotates and passes through the support ring, and the remaining guide rods are fixed and pass through the support ring, the positioning assembly includes a mounting ring installed at one end of the plurality of guide rods away from the support ring, the two mounting rings are fixedly installed on the outsides of the left and right fixed rods respectively, the outside of the mounting ring is hinged with a plurality of hinged rods distributed in a circle and corresponding to the plurality of guide rods one by one, a positioning frame is fixedly installed at one end of the hinged rod close to the support ring, a notch clamping ring is fixedly installed on the side of the positioning frame close to the support ring, two notch clamping rings are arranged on the remaining positioning frames except for the two positioning frames close to the base frame, one notch clamping ring is arranged on the two positioning frames close to the base frame, and the notch clamping ring is used to clamp and position the main reinforcement and make the main reinforcement close to the reinforcing hoop.

[0014] Furthermore, the driving assembly also includes a guide sleeve slidably mounted on the outside of the guide rod, a connecting ring is fixedly installed between the guide sleeves, a connecting rod is hinged on one side of the guide sleeve away from the connecting ring, and the other end of the connecting rod is hinged to the corresponding hinged rod.

[0015] Furthermore, the outer portion of the top guide rod at both ends of the support ring is provided with external threads, and the two sections of the external threads have opposite rotation directions, and the top guide sleeve is provided with internal threads that match the external threads.

[0016] Furthermore, the rotary multi-head welding unit includes an adjustment ring rotatably mounted on the left side of the left mounting ring, a plurality of circumferentially distributed electric push rods are fixedly mounted on the outer side of the adjustment ring, a welding gun assembly is fixedly mounted on the output end of the electric push rod, and the plurality of welding gun assemblies correspond one-to-one to a plurality of main ribs supported by the top of the bracket.

[0017] The present invention also provides a bored cast-in-place pile reinforcement skeleton welding method, which is completed using the above-mentioned bored cast-in-place pile reinforcement skeleton welding auxiliary equipment, and includes the following steps: S1: stably place the four main reinforcements at the bottom through a bracket and preliminarily adjust their positions to ensure that the main reinforcements are parallel to each other.

[0018] S2: Place the reinforcing hoop in the annular groove of the tray pulley of the self-laying unit, and adjust the position of the support ring by the linear slide unit to move the reinforcing hoop to a suitable laying point.

[0019] S3: The extrusion assembly controls the lifting frame to move downward so that the bottom of the reinforcement hoop fits the main reinforcement. Then the rotary multi-head welding unit starts to weld the reinforcement hoop to the bottom main reinforcement, and then the laying and welding of all reinforcement hoops are completed in multiple cycles.

[0020] S4: Control the positioning frame to drive the notch clamp to expand, put the remaining twelve main bars into the corresponding notch clamps respectively, clamp them by the two opposite notch clamps on the left and right, and then control the rotary multi-head welding unit to complete the welding of the remaining main bars and the reinforcement hoop.

[0021] The beneficial effects of the present invention are: 1. In the present application, by setting a bracket and a self-positioning clamping unit, the main reinforcement is accurately positioned, and the main reinforcement positioning error caused by manual operation is effectively avoided, ensuring uniform circumferential distribution. The self-laying unit can automatically and evenly lay the reinforcing hoops, and use the extrusion assembly to accurately control the fitting position of the reinforcing hoops and the main reinforcement. There is no need for manual positioning based on experience, which greatly improves the positioning accuracy and ensures the uniformity of the overall structural strength of the steel cage. At the same time, the rotary multi-head welding unit can weld multiple main bars and reinforcing hoops at the same time. The welding points are evenly distributed and the strength is stable, which improves the quality stability of the steel cage. The entire welding process has a high degree of automation, which reduces the need for manual collaboration, reduces communication costs and the probability of rework, and significantly improves construction efficiency.

[0022] 2. In the present application, by setting up a self-laying unit, the bracket pulley and the reset spring can flexibly adapt to the rigid annular structure of the reinforcement hoop, the extrusion assembly can accurately control the laying position of the reinforcement hoop, and the self-positioning clamping unit can ensure that the reinforcement hoop is tightly fitted to the main reinforcement, thereby completing the positioning and fixation of the reinforcement hoop. A series of components enable the entire welding process to eliminate the need for manual insertion and welding of the reinforcement hoop, thus avoiding the problems of position deviation and uneven quality caused by manual operation, and making up for the shortcomings of the rolling welding machine in the processing of the reinforcement hoop. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the base frame, control components, lifting support plates, slide rails, electric slides and fixed rods of the present invention.

[0025] Figure 3 It is a partial three-dimensional structural schematic diagram of the reinforcing hoop, the self-laying unit, the self-positioning clamping unit and the rotary multi-head welding unit of the present invention.

[0026] Figure 4It is a schematic diagram of the three-dimensional structure of the card tray pulley, lifting frame, positioning frame and notched clamping ring of the present invention.

[0027] Figure 5 The present invention Figure 4 A partial enlarged view of part A.

[0028] Figure 6 It is a sectional view of the three-dimensional structure of the card tray pulley, lifting frame, connecting ring and wedge rod of the present invention.

[0029] Figure 7 It is a partial three-dimensional structural schematic diagram of the notched snap ring, the card support pulley, the support ring, the guide rod and the fixing rod of the present invention.

[0030] Figure 8 It is a state diagram of the main reinforcement when the notch clamping ring of the present invention is clamped and fixed.

[0031] In the figure: 1, chassis; 2, linear slide unit; 3, bracket; 4, main reinforcement; 5, reinforcing hoop; 6, self-laying unit; 7, self-positioning clamping unit; 8, rotary multi-head welding unit; 9, support ring; 201, control part; 202, lifting support plate; 203, slide rail; 204, electric slide; 205, fixing rod; 601, laying component; 602, extrusion component; 6011, reset spring; 6012, lifting frame; 6013, card tray pulley; 6014, limit rod; 6021, installation Mounting sleeve; 6022, threaded sleeve; 6023, lead screw; 6024, wedge rod; 6025, pressure block; 6026, support rail; 6027, support slide; 701, positioning assembly; 702, drive assembly; 703, guide rod; 7011, notched retaining ring; 7012, mounting ring; 7013, hinged rod; 7014, positioning frame; 7021, guide sleeve; 7022, connecting rod; 7023, connecting ring; 801, adjusting ring; 802, electric push rod; 803, welding gun assembly. DETAILED DESCRIPTION

[0032] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 4In this embodiment, a bored cast-in-place pile steel bar skeleton welding auxiliary equipment is proposed, including a base frame 1, a bracket 3 fixedly installed on the top of the base frame 1 for supporting a plurality of main bars 4 at the bottom, a linear slide unit 2 is arranged on the top of the base frame 1, a support ring 9 is arranged on the outside of the linear slide unit 2, self-positioning clamping units 7 are symmetrically distributed on the left and right sides of the support ring 9, a self-laying unit 6 is arranged on the top of the support ring 9, the self-laying unit 6 includes a plurality of groups of laying components 601 arranged equidistantly on the left and right for laying reinforcement hoops 5 and an extrusion component 602 for controlling the laying component 601, the self-positioning clamping unit 7 includes two left-right symmetrical positioning components 701 and a driving component 702 for driving the positioning component 701, the positioning component 701 is used to position the main bar 4 and make the main bar 4 close to the reinforcement hoop 5, and a rotary multi-head welding unit 8 is arranged on the left side of the positioning component 701 on the left.

[0034] It should be noted that the bracket 3 is arranged in several groups according to the length of the main reinforcement. The top of a single bracket 3 is provided with four arc-shaped bottom supports distributed in a circle and used to support the main reinforcement 4. The inner diameter of the arc-shaped bottom support is adapted to the outer diameter of the main reinforcement 4, and can provide stable support for the main reinforcement 4.

[0035] During specific use, first take sixteen main bars 4 and place four of them above the arc-shaped bottom support of the corresponding bracket 3. After the initial placement is completed, fine-tune the position of the main bars 4 to observe whether the main bars 4 are in full contact with the arc-shaped bottom support to ensure that the main bars 4 are located in the center of the arc-shaped bottom support to ensure the stability of the main bars 4 during subsequent processing. If the main bars 4 are partially not fitted, use a crowbar to gently pry the main bars 4 so that the main bars 4 fit tightly with the arc-shaped bottom support to complete the support of the four main bars 4 at the bottom. After the main bars 4 on all brackets 3 are placed, check the overall position of the four main bars 4 and observe along the length direction of the main bars 4 to see whether the main bars 4 are in a straight line. If the main bars 4 are bent or deviated, adjust them again to ensure that the four main bars 4 are parallel to each other and distributed in a circle, which provides a good foundation for the subsequent laying and welding of the reinforcing hoops 5 and ensures the quality of the subsequent steel skeleton.

[0036] See also Figure 1 , Figure 2 , Figure 4 and Figure 8The linear slide unit 2 includes a plurality of control components 201 fixedly installed at the bottom of the base frame 1 and arranged linearly along the axial direction of the support ring 9. The output end of the control component 201 slides through the base frame 1 and is fixedly installed with a lifting support plate 202. A slide rail 203 is fixedly installed on the top of the rightmost lifting support plate 202. The tops of the remaining lifting support plates 202 are all in contact with the slide rail 203 to provide an upward support force for the slide rail 203. A plurality of electric slides 204 are slidably connected to the outside of the slide rail 203. A fixed rod 205 is fixedly installed on the top of the electric slide 204. The two fixed rods 205 located in the middle are fixedly connected to the inner wall of the support ring 9.

[0037] It should be noted that the control member 201 may be a conventional hydraulic cylinder.

[0038] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 The laying component 601 includes two return springs 6011 fixedly installed on the top of the support ring 9 and symmetrical in front and back. A lifting frame 6012 is installed on the top of the two return springs 6011. Two front-to-back symmetrical card tray pulleys 6013 are rotatably installed between the left and right inner walls of the lifting frame 6012. The circumferential surface of the card tray pulley 6013 is provided with an annular groove. The reinforcement hoop 5 is clamped in the annular groove of the card tray pulley 6013 to support and limit the reinforcement hoop 5. Two front-to-back symmetrical limiting rods 6014 are fixedly installed at the bottom of the lifting frame 6012. The bottom end of the limiting rod 6014 slides through the top wall of the support ring 9.

[0039] See also Figure 3 , Figure 5 and Figure 6 The extrusion assembly 602 includes two installation sleeves 6021 fixedly installed on the inner wall of the top of the support ring 9 and symmetrically arranged on the left and right. A screw rod 6023 is rotatably installed between the two installation sleeves 6021. The outer side of the screw rod 6023 is threadedly connected with a threaded sleeve 6022. A wedge rod 6024 is fixedly installed at the bottom of the threaded sleeve 6022. A pressure block 6025 is fixedly installed at the bottom end of the limiting rod 6014. The two pressure blocks 6025 at the bottom ends of the two limiting rods 6014 on the same lifting frame 6012 are symmetrical to each other. A wedge surface matching the wedge rod 6024 is provided on the side of the pressure block 6025 close to the wedge rod 6024. The screw rod 6023 is connected to an external power supply.

[0040] During specific use, after installing the four main reinforcements 4 at the bottom, first control the output end of the leftmost control component 201 to retract to make room for placing the reinforcement hoop 5 on the tray pulley 6013. Then, align the reinforcement hoop 5 to be laid with the annular grooves on the two tray pulleys 6013 on the same lifting frame 6012, and then insert the reinforcement hoop 5 into the annular grooves of two of the tray pulleys 6013. Then, repeat the operation of placing the reinforcement hoop 5 until all the lifting frames 6012 are filled. During this process, the reset spring 6011 is in a natural state, and there is a small distance between the reinforcement hoop 5 stuck on the tray pulley 6013 and the main reinforcement 4 placed at the bottom, so as to facilitate the laying of the reinforcement hoop 5.

[0041] It should be noted that there is an interference fit between the reinforcing hoop 5 and the inner wall of the annular groove of the card tray pulley 6013 to improve the fixing effect of the reinforcing hoop 5. At the same time, the reinforcing hoop 5 on the top of the two card tray pulleys 6013 on the same lifting frame 6012 is perpendicular to the four main ribs 4 at the bottom.

[0042] After the reinforcing hoop 5 is placed, the screw rod 6023 is driven to rotate by an external power supply to drive the threaded sleeve 6022 to move to the right along the screw rod 6023, thereby causing the wedge rod 6024 at the bottom of the threaded sleeve 6022 to move synchronously, and the wedge rod 6024 cooperates with the pressure block 6025 at the bottom end of the limiting rod 6014. During the movement, the wedge rod 6024 will first squeeze the wedge surface on the left side of the leftmost pressure block 6025, prompting the leftmost lifting frame 6012 to overcome the elastic force of the return spring 6011 and move downward, thereby driving the leftmost reinforcing hoop 5 to move downward and fit tightly with the main reinforcement 4, and then the laid reinforcing hoop 5 is welded and fixed to the four main reinforcements at the bottom by the rotary multi-head welding unit 8. 4, after welding, the wedge rod 6024 continues to move rightward to squeeze the leftmost pressure block 6025, driving the lifting frame 6012 to continue to move downward, so that the card support pulley 6013 is separated from the welded reinforcing hoop 5, and then the electric slide 204 moves rightward along the slide rail 203, driving the support ring 9 to move rightward, and then repeating the above-mentioned laying (during laying, the distance between adjacent reinforcing hoops 5 is 2 meters) and welding and fixing operations for many times until all the reinforcing hoops 5 are laid, thereby realizing the automatic laying and precise positioning of the reinforcing hoops 5, reducing the difficulty and intensity of manual operation, improving the laying efficiency and quality, and effectively avoiding the reinforcing hoop 5 from deflecting or shaking during the laying process, reducing the risk of damage.

[0043] See also Figure 3 , Figure 4 , Figure 5 and Figure 7The self-positioning clamping unit 7 also includes a plurality of guide rods 703 distributed circumferentially along the axial direction of the support ring 9, the top guide rod 703 rotates and penetrates the support ring 9, and the remaining guide rods 703 are fixed and penetrate the support ring 9, the positioning assembly 701 includes a mounting ring 7012 installed at one end of the plurality of guide rods 703 away from the support ring 9, the top guide rod 703 is rotatably connected to the mounting ring 7012, and the two mounting rings 7012 are respectively fixedly installed on the outside of the left and right fixed rods 205, and the outside of the mounting ring 7012 is hinged with a circumferential distribution and connected to the support ring 9. A plurality of guide rods 703 correspond one to another to a plurality of articulated rods 7013, a positioning frame 7014 is fixedly installed on one end of the articulated rod 7013 close to the support ring 9, a notch snap ring 7011 is fixedly installed on the side of the positioning frame 7014 close to the support ring 9, and two notch snap rings 7011 are arranged on the remaining positioning frames 7014 except for the two positioning frames 7014 close to the base frame 1, and one notch snap ring 7011 is arranged on the two positioning frames 7014 close to the base frame 1, and the notch snap ring 7011 is used for clamping and positioning the main reinforcement 4 and making the main reinforcement 4 close to the reinforcing hoop 5.

[0044] See also Figure 3 , Figure 6 and Figure 7 The driving assembly 702 includes a connecting ring 7023 located between the mounting ring 7012 and the support ring 9 on the left side, and the extrusion assembly 602 also includes a support rail 6026 fixedly installed on the inner wall of the connecting ring 7023 through a cross bar and arranged horizontally, and a support slider 6027 is slidably connected in the support rail 6026, and the top of the support slider 6027 is fixedly connected to the wedge rod 6024.

[0045] It should be noted that the distance between the two pressure blocks 6025 at the bottom ends of the two limiting rods 6014 on the same lifting frame 6012 is greater than the width of the supporting slider 6027 , so the pressure blocks 6025 will not hinder the movement of the supporting slider 6027 .

[0046] See also Figure 3 , Figure 5 and Figure 7 The driving assembly 702 also includes a guide sleeve 7021 slidably sleeved on the outside of the guide rod 703, a connecting ring 7023 is fixedly installed between the guide sleeves 7021, a connecting rod 7022 is hinged on the side of the guide sleeve 7021 away from the connecting ring 7023, and the other end of the connecting rod 7022 is hinged to the corresponding hinged rod 7013, and the outer part of the top guide rod 703 located at both ends of the support ring 9 is provided with an external thread, and the two sections of the external thread are rotated in opposite directions, and an internal thread matching the external thread is provided in the top guide sleeve 7021, and the top guide rod 703 is connected to an external power supply.

[0047] When in use, after all the reinforcement hoops 5 are laid and welded, the support ring 9 is driven by the electric slide 204 to move axially along the main reinforcement 4 to the middle position of the main reinforcement 4, and the positioning frame 7014 moves accordingly. Then, the uppermost guide rod 703 is driven to rotate by an external power supply, thereby driving the uppermost left and right guide sleeves 7021 to move away from each other. At the same time, the uppermost left and right guide sleeves 7021 drive the remaining guide sleeves 7021 to move synchronously and away from the support ring 9 through the connecting ring 7023. During this process, the connecting rod 7022 on the guide sleeve 7021 pushes the hinge rod 7013 to rotate to the side away from the mounting ring 7012, thereby driving the positioning frame 7014 to move and unfold synchronously, and the notch planes of the two notch clamping rings 7011 opposite to each other are flush with each other, and the inner edge of the notch clamping ring 7011 is closely tangent to the outer edge of the reinforcement hoop 5, and the remaining twelve main reinforcements 4 are respectively corresponding to the notch clamping rings 7011, and a single main reinforcement 4 is clamped by the two notch clamping rings 7011 opposite to each other (such as Figure 8 As shown), then, the remaining main bars 4 are welded and fixed to the reinforcing hoops 5 by the rotary multi-head welding unit 8 to complete the laying of the reinforcing hoops 5 of the steel cage skeleton and the welding and fixing of the reinforcing hoops 5 and the main bars 4.

[0048] See also Figure 3 The rotary multi-head welding unit 8 includes an adjusting ring 801 rotatably mounted on the left side of the left mounting ring 7012, a plurality of electric push rods 802 distributed in a circle are fixedly mounted on the outer side of the adjusting ring 801, a welding gun assembly 803 is fixedly mounted on the output end of the electric push rod 802, the plurality of welding gun assemblies 803 correspond one to one with a plurality of main ribs 4 supported on the top of the bracket 3, and the adjusting ring 801 is connected to an external power supply.

[0049] It should be noted that the welding gun assembly 803 itself can be moved in the horizontal and vertical directions to approach the welding position (not shown in the figure). This is a prior art and will not be described in detail in this application.

[0050] During specific use, when the reinforcing hoop 5 moves down and fits tightly with the main reinforcement 4, the welding gun assembly 803 adjusts itself and moves to the position where the reinforcing hoop 5 and the main reinforcement 4 fit, and then the laid reinforcing hoop 5 is welded and fixed to the four main reinforcements 4 at the bottom through the welding gun assembly 803.

[0051] After all reinforcement hoops 5 are laid and welded, and then the remaining main bars 4 are welded, the angle of the welding gun assembly 803 is adjusted by rotating the adjustment ring 801 controlled by an external power supply, and the welding gun assembly 803 is driven to move in conjunction with the electric slide rail 203 to weld the remaining main bars 4.

[0052] See also Figure 1-Figure 8The present invention also provides a bored cast-in-place pile reinforcement skeleton welding method, which is completed by using the above-mentioned bored cast-in-place pile reinforcement skeleton welding auxiliary equipment, and includes the following steps: S1: stably place the four main bars 4 at the bottom through the bracket 3 and preliminarily adjust the position to ensure that the main bars 4 are parallel to each other.

[0053] S2: The reinforcing hoop 5 is clamped in the annular groove of the bracket pulley 6013 of the self-laying unit 6, and the linear slide unit 2 adjusts the position of the support ring 9 to move the reinforcing hoop 5 to a suitable laying point.

[0054] S3: The extrusion assembly 602 controls the lifting frame 6012 to move downward, so that the bottom of the reinforcing hoop 5 fits the main reinforcement 4, and then the rotary multi-head welding unit 8 is started to weld the reinforcing hoop 5 to the bottom main reinforcement 4, and then the laying and welding of all the reinforcing hoops 5 are completed by multiple cycles.

[0055] S4: Control the positioning frame 7014 to drive the notch clamping ring 7011 to unfold, and put the remaining twelve main bars 4 into the corresponding notch clamping rings 7011 respectively, and clamp them with the two opposite notch clamping rings 7011 on the left and right, and then control the rotary multi-head welding unit 8 to complete the welding of the remaining main bars 4 and the reinforcement hoop 5.

[0056] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A bored pile reinforcement skeleton welding auxiliary equipment, characterized in that: include: A base frame (1), a bracket (3) fixedly mounted on the top of the base frame (1) and used for supporting a plurality of main ribs (4) at the bottom, a linear slide unit (2) being arranged on the top of the base frame (1), a support ring (9) being arranged on the outside of the linear slide unit (2), self-positioning clamping units (7) being symmetrically distributed on the left and right sides of the support ring (9), a self-laying unit (6) being arranged on the top of the support ring (9), the self-laying unit (6) comprising a plurality of groups of laying components (601) arranged equidistantly on the left and right for laying reinforcement hoops (5) and an extrusion component (602) for controlling the laying components (601), the self-positioning clamping unit (7) comprising two symmetrical positioning components (701) on the left and right and a driving component (702) for driving the positioning component (701), the positioning component (701) being used for positioning the main ribs (4) and making the main ribs (4) close to the reinforcement hoop (5), and a rotary multi-head welding unit (8) being arranged on the left side of the positioning component (701); The laying assembly (601) comprises two return springs (6011) fixedly mounted on the top of the support ring (9) and symmetrically arranged front and back, a lifting frame (6012) being mounted on the top of the two return springs (6011), two card support pulleys (6013) being symmetrically arranged front and back being rotatably mounted between the left and right inner walls of the lifting frame (6012), an annular groove being formed on the circumferential surface of the card support pulley (6013), and the reinforcing hoop (5) being clamped in the annular groove of the card support pulley (6013) so as to support and limit the reinforcing hoop (5); The support ring (9) drives the laying assembly (601) to move axially along the main reinforcement (4) and lay the reinforcing hoops (5) at equal intervals. During laying, the extrusion assembly (602) controls the lifting frame (6012) to move downward, so that the card support pulley (6013) drives the bottom of the reinforcing hoop (5) to fit the main reinforcements (4) at the bottom, and then the rotary multi-head welding unit (8) welds the reinforcing hoop (5) to the main reinforcement (4).

2. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 1 is characterized in that: The linear slide unit (2) comprises a plurality of control components (201) fixedly mounted on the bottom of the base frame (1) and arranged linearly along the axis of the support ring (9); the output end of the control component (201) slides through the base frame (1) and is fixedly mounted with a lifting support plate (202); a slide rail (203) is fixedly mounted on the top of the rightmost lifting support plate (202); the tops of the remaining lifting support plates (202) are all in contact with the slide rail (203) to provide an upward support force for the slide rail (203); a plurality of electric slides (204) are slidably connected to the outside of the slide rail (203); a fixing rod (205) is fixedly mounted on the top of the electric slide (204); and two fixing rods (205) located in the middle are fixedly connected to the inner wall of the support ring (9).

3. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 1 is characterized in that: The laying assembly (601) further comprises two limit rods (6014) fixedly mounted on the bottom of the lifting frame (6012) and symmetrically arranged in the front and rear directions, and the bottom ends of the limit rods (6014) slide through the top wall of the support ring (9).

4. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 1 is characterized in that: The extrusion assembly (602) comprises two installation sleeves (6021) fixedly mounted on the inner wall of the top of the support ring (9) and symmetrically mounted on the left and right, a screw rod (6023) is rotatably mounted between the two installation sleeves (6021), a threaded sleeve (6022) is threadedly connected to the outer side of the screw rod (6023), a wedge rod (6024) is fixedly mounted on the bottom of the threaded sleeve (6022), a pressure block (6025) is fixedly mounted on the bottom end of the limiting rod (6014), the two pressure blocks (6025) at the bottom ends of the two limiting rods (6014) on the same lifting frame (6012) are symmetrical to each other, and a wedge surface matching the wedge rod (6024) is provided on the side of the pressure block (6025) close to the wedge rod (6024).

5. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 4 is characterized in that: The driving assembly (702) includes a connecting ring (7023), and the extrusion assembly (602) also includes a support rail (6026) fixedly mounted on the inner wall of the connecting ring (7023) via a cross bar and arranged horizontally, a support slider (6027) being slidably connected inside the support rail (6026), and a top end of the support slider (6027) being fixedly connected to the wedge rod (6024).

6. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 5 is characterized in that: The self-positioning clamping unit (7) further comprises a plurality of guide rods (703) distributed circumferentially along the axial direction of the support ring (9), the top guide rod (703) rotates and penetrates the support ring (9), and the remaining guide rods (703) are fixed and penetrate the support ring (9), and the positioning assembly (701) comprises a mounting ring (7012) mounted on one end of the plurality of guide rods (703) away from the support ring (9), the two mounting rings (7012) are respectively fixedly mounted on the outside of the left and right fixed rods (205), and the outside of the mounting ring (7012 is hinged with a plurality of guide rods (703) distributed circumferentially and corresponding to the plurality of guide rods (703) one by one. A hinged rod (7013), a positioning frame (7014) is fixedly installed on one end of the hinged rod (7013) close to the support ring (9), a notch clamping ring (7011) is fixedly installed on one side of the positioning frame (7014) close to the support ring (9), two notch clamping rings (7011) are arranged on the remaining positioning frames (7014) except the two positioning frames (7014) close to the base frame (1), and one notch clamping ring (7011) is arranged on the two positioning frames (7014) close to the base frame (1), and the notch clamping ring (7011) is used to clamp and position the main reinforcement (4) and make the main reinforcement (4) close to the reinforcing hoop (5).

7. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 6 is characterized in that: The driving assembly (702) further comprises a guide sleeve (7021) slidably mounted on the outside of the guide rod (703); a connecting ring (7023) is fixedly mounted between the guide sleeves (7021); a connecting rod (7022) is hingedly connected to one side of the guide sleeve (7021) away from the connecting ring (7023); and the other end of the connecting rod (7022) is hingedly connected to the corresponding hinge rod (7013).

8. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 7 is characterized in that: The outer side of the top guide rod (703) and the parts at both ends of the support ring (9) are provided with external threads, and the two sections of the external threads are rotated in opposite directions. The top guide sleeve (7021) is provided with internal threads matching the external threads.

9. The bored pile reinforcement skeleton welding auxiliary equipment according to claim 6, characterized in that: The rotary multi-head welding unit (8) comprises an adjustment ring (801) rotatably mounted on the left side of the left mounting ring (7012); a plurality of electric push rods (802) distributed in a circumference are fixedly mounted on the outer side of the adjustment ring (801); a welding gun assembly (803) is fixedly mounted on the output end of the electric push rod (802); and the plurality of welding gun assemblies (803) correspond one to one with a plurality of main ribs (4) supported by the top of the bracket (3).

10. A method for welding a bored pile reinforcement skeleton, characterized in that: The method is completed by using the auxiliary equipment for welding the reinforced skeleton of bored piles as described in claim 6. The following steps are involved: S1: Use the bracket (3) to stably place the four main ribs (4) at the bottom and preliminarily adjust their positions to ensure that the main ribs (4) are parallel to each other; S2: The reinforcing hoop (5) is clamped into the annular groove of the bracket pulley (6013) of the self-laying unit (6), and the linear slide unit (2) adjusts the position of the support ring (9) to move the reinforcing hoop (5) to a suitable laying point; S3: The extrusion assembly (602) controls the lifting frame (6012) to move downward, so that the bottom of the reinforcing hoop (5) fits the main reinforcement (4), and then the rotary multi-head welding unit (8) is started to weld the reinforcing hoop (5) and the bottom main reinforcement (4) together, and then the laying and welding of all the reinforcing hoops (5) are completed in multiple cycles; S4: Control the positioning frame (7014) to drive the notch clamping ring (7011) to unfold, and place the remaining twelve main bars (4) into the corresponding notch clamping rings (7011) respectively, and clamp them with two notch clamping rings (7011) opposite to each other on the left and right, and then control the rotary multi-head welding unit (8) to complete the welding of the remaining main bars (4) and the reinforcing hoop (5).

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