Curved-surface multi-joint cross beam manufacturing device

Abstract

The embodiment of the utility model relates to a curved-surface multi-joint cross beam manufacturing device, and the device comprises a numerical control machining center which comprises a conveying mechanism, a position adjusting mechanism and a machining mechanism, the conveying mechanism is used for conveying a curved-surface pipe to a machining station, the position adjusting mechanism is used for carrying out the position calibration of the curved-surface pipe at the machining station, and the machining mechanism is used for machining the curved-surface pipe at the machining station; the machining mechanism is used for machining the curved-surface pipe subjected to position calibration; the jig frame mechanism comprises a first positioning assembly and a second positioning assembly, the first positioning assembly is used for positioning the curved-surface pipe, and the second positioning assembly is used for positioning the multiple bracket structures relative to the curved-surface pipe; and the welding mechanism comprises a welding spot confirmation module and a welding module, the welding spot confirmation module is used for determining the welding spot position of the bracket structure on the curved-surface pipe, and the welding module is used for welding the bracket structure to the curved-surface pipe according to the welding spot position. The machining efficiency can be improved, and the requirement for precise control over the manufacturing and connecting precision of the complex curved surface multi-connector cross beam can be met.

Description

Technical Field

[0001] The present disclosure relates to the technical field of bridge construction, and in particular to a device for manufacturing a curved multi-joint beam. Background Art

[0002] With the development of bridge steel structures, steel guardrails, as auxiliary structures of bridge decks, are also constantly being updated. Not only are the structures of steel guardrails becoming more and more complex and the requirements for appearance quality are becoming higher and higher, but also the difficulty of controlling the geometric dimensional accuracy of steel guardrails during assembly is becoming increasingly higher.

[0003] In the existing technology, the beam structure of the steel guardrail is generally processed and manufactured through traditional assembly and welding methods, but this can only meet the processing requirements of beams with regular structure and few joints, and cannot meet the precise control requirements of the manufacturing connection accuracy of complex curved multi-joint beams.

[0004] Therefore, it is necessary to provide a new technical solution to improve one or more problems existing in the above solutions.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0006] The purpose of the embodiments of the present disclosure is to provide a device for manufacturing curved multi-joint beams, which can not only improve processing efficiency but also meet the requirements for precise control of connection accuracy in the manufacture of complex curved multi-joint beams.

[0007] According to an embodiment of the present disclosure, a device for manufacturing a curved multi-joint beam is provided, comprising:

[0008] A CNC machining center includes a transport mechanism, a position adjustment mechanism, and a machining mechanism. The transport mechanism is used to transport a curved tube to a machining station. The position adjustment mechanism is used to calibrate the position of the curved tube at the machining station. The machining mechanism is used to process the calibrated curved tube.

[0009] The tire frame mechanism includes a first positioning assembly and a second positioning assembly, wherein the first positioning assembly is used to position the curved tube, and the second positioning assembly is used to position multiple bracket structures relative to the curved tube;

[0010] The welding mechanism includes a welding point confirmation module and a welding module. The welding point confirmation module is used to determine the welding point positions of the bracket structure on the curved tube. The welding module is used to weld the bracket structure to the curved tube according to the welding point positions.

[0011] In an exemplary embodiment of the present disclosure, the position adjustment mechanism includes:

[0012] a first scanning module, configured to scan the curved tube to obtain first scanning model data;

[0013] A robotic arm is used to adjust the position of the curved tube according to the first scanning model data and the three-dimensional modeling data of the curved tube.

[0014] In an exemplary embodiment of the present disclosure, the processing mechanism includes:

[0015] a cutting unit, configured to cut the curved tube along an axial direction of the curved tube;

[0016] a hole processing unit, the hole processing unit being used to process special-shaped holes on the curved tube;

[0017] A reference line marking unit is used to mark a reference line on the curved tube.

[0018] In an exemplary embodiment of the present disclosure, the tire carrier mechanism further includes a base, and the first positioning assembly and the second positioning assembly are disposed on the base.

[0019] In an exemplary embodiment of the present disclosure, the first positioning component includes:

[0020] a horizontal support frame, the horizontal support frame being arranged on the base and being used to support the outer surface of the curved tube;

[0021] Two first position-limiting supports are spaced apart and arranged on the base, the horizontal support frame is located between the two first position-limiting supports, and the first position-limiting supports are used to abut against the ends of the curved tube along the axial direction thereof to position the curved tube along the axial direction of the curved tube;

[0022] A position limiting support plate is connected to the horizontal support frame, and the position limiting support plate is arranged at an angle to the height direction of the horizontal support frame;

[0023] A positioning shaft is detachably connected to the position-limiting support plate, and the positioning shaft and the position-limiting support plate are arranged perpendicularly.

[0024] In an exemplary embodiment of the present disclosure, a positioning hole is formed on the position-limiting support plate, and one end of the positioning shaft is detachably connected to the positioning hole.

[0025] In an exemplary embodiment of the present disclosure, the second positioning component includes:

[0026] a bracket support member, the bracket support member being disposed on the base and being used to support the bracket structure along a height direction of the bracket support member;

[0027] Two first bracket limiting support plates are provided on the bracket support member at intervals along the axial direction of the curved tube, and are used to abut against both side ends of the bracket structure along the axial direction of the curved tube to position the bracket structure along the axial direction of the curved tube;

[0028] a second bracket limiting support plate, provided on the bracket support member and perpendicular to the first bracket limiting support plate, the second bracket limiting support plate being used to position the bracket structure along the width direction of the bracket structure;

[0029] Wherein, the width direction of the bracket structure, the axial direction of the curved tube and the height direction of the bracket support are perpendicular to each other.

[0030] In an exemplary embodiment of the present disclosure, a plurality of the second positioning assemblies are provided, and the plurality of the second positioning assemblies are arranged on the base at intervals along the axial direction of the curved tube.

[0031] The technical solution provided by the present disclosure may have the following beneficial effects:

[0032] In the embodiment of the present disclosure, a CNC machining center is used to perform fine machining pre-processing on the curved tube, a first positioning assembly of a tire frame mechanism is used to position the curved tube, and a second positioning assembly is used to position multiple bracket structures relative to the curved tube, so as to ensure that the relative positions of the curved tube and the multiple bracket structures of the crossbeam are precisely controlled. A welding point confirmation module of a welding mechanism is used to determine the positions of the welding points of the bracket structure on the curved tube, and a welding module of the welding mechanism is used to weld the bracket structure to the curved tube according to the positions of the welding points, thereby ensuring that the multiple bracket structures are precisely welded to the curved tube. This embodiment, through the coordination of a CNC machining center, a first positioning assembly, a second positioning assembly, and a welding mechanism, can not only realize the assembly line processing of the crossbeam of the steel guardrail and improve the processing efficiency, but also can realize the control of the crossbeam processing accuracy from multiple aspects such as the curved tube processing accuracy, the relative position of the curved tube and the bracket structure, and the welding accuracy, so as to meet the precise control requirements for the manufacturing connection accuracy of complex curved multi-joint crossbeams.

[0033] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, serve to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0035] Figure 1 A simplified structural diagram showing the first positioning assembly in an exemplary embodiment of the present disclosure for positioning a curved tube Figure 1 ;

[0036] Figure 2 A simplified structural diagram showing the second positioning assembly in an exemplary embodiment of the present disclosure for positioning the bracket structure Figure 1 ;

[0037] Figure 3 A simplified structural diagram showing a welding mechanism in an exemplary embodiment of the present disclosure for welding a curved multi-joint beam;

[0038] Figure 4 A simplified structural diagram showing a steel guardrail in an exemplary embodiment of the present disclosure Figure 1 ;

[0039] Figure 5 A simplified structural diagram showing a steel guardrail in an exemplary embodiment of the present disclosure Figure 2 ;

[0040] Figure 6 A simplified structural diagram of a curved tube in an exemplary embodiment of the present disclosure is shown;

[0041] Figure 7 A simplified structural diagram showing a curved tube and bracket structure in an exemplary embodiment of the present disclosure;

[0042] Figure 8 A simplified structural diagram showing the first positioning assembly in an exemplary embodiment of the present disclosure for positioning a curved tube Figure 2 ;

[0043] Figure 9 A simplified structural diagram showing the first positioning assembly in an exemplary embodiment of the present disclosure for positioning a curved tube Figure 3 ;

[0044] Figure 10 A simplified structural diagram showing a curved tube on a horizontal support frame after being positioned by a first positioning assembly in an exemplary embodiment of the present disclosure is shown;

[0045] Figure 11 A simplified structural diagram showing the second positioning assembly in an exemplary embodiment of the present disclosure for positioning the bracket structure Figure 2;

[0046] Figure 12 A simplified structural diagram showing the second positioning assembly in an exemplary embodiment of the present disclosure for positioning the bracket structure Figure 3 . Description of the drawings:

[0048] 1. Column; 2. Curved multi-joint beam; 21. Curved tube; 211. End connection hole; 212. Connection hole; 22. Bracket structure;

[0049] 100. Base; 200. First positioning assembly; 210. Horizontal support frame; 220. First position-limiting support member; 230. Position-limiting support plate; 2301. Positioning hole; 240. Positioning shaft; 300. Second positioning assembly; 310. Bracket support member; 320. First bracket position-limiting support plate; 330. Second bracket position-limiting support plate; 400. Welding mechanism. DETAILED DESCRIPTION

[0050] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0051] In addition, the accompanying drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0052] This example embodiment provides a device for manufacturing a curved multi-joint beam, referring to Figures 1 to 3 As shown in , the curved multi-joint beam manufacturing device may include:

[0053] The CNC machining center includes a transport mechanism, a position adjustment mechanism, and a machining mechanism. The transport mechanism is used to transport the curved tube 21 to the machining station. The position adjustment mechanism is used to calibrate the position of the curved tube 21 at the machining station. The machining mechanism is used to process the calibrated curved tube 21.

[0054] The tire frame mechanism includes a first positioning assembly 200 and a second positioning assembly 300. The first positioning assembly 200 is used to position the curved tube 21, and the second positioning assembly 300 is used to position the multiple bracket structures 22 relative to the curved tube 21.

[0055] The welding mechanism 400 includes a welding point confirmation module and a welding module. The welding point confirmation module is used to determine the welding point positions of the bracket structure 22 on the curved tube 21. The welding module is used to weld the bracket structure 22 to the curved tube 21 according to the welding point positions.

[0056] In the embodiment of the present disclosure, the curved tube 21 is subjected to fine machining pre-processing by a CNC machining center, the curved tube 21 is positioned by the first positioning component 200 of the tire frame mechanism, and the multiple bracket structures 22 are positioned relative to the curved tube 21 by the second positioning component 300, so as to ensure that the relative positions of the curved tube 21 of the crossbeam and the multiple bracket structures 22 are precisely controlled, the welding point confirmation module of the welding mechanism 400 is used to determine the welding point position of the bracket structure 22 on the curved tube 21, and the welding module of the welding mechanism 400 is used to weld the bracket structure 22 to the curved tube 21 according to the welding point position, so as to ensure that the multiple bracket structures 22 are accurately welded to the curved tube 21. This embodiment cooperates with the CNC machining center, the first positioning component 200, the second positioning component 300 and the welding mechanism 400 to realize the assembly line processing of the beams of the steel guardrail and improve the processing efficiency. It can also control the processing accuracy of the beams from multiple aspects such as the processing accuracy of the curved tube 21, the relative position of the curved tube 21 and the bracket structure 22, and the welding accuracy, so as to meet the precise control requirements of the manufacturing connection accuracy of complex curved multi-joint beams.

[0057] It should be noted that the reference Figures 4 to 7 As shown in , in this embodiment, the steel guardrail mentioned in the background art includes a column 1 and a curved multi-joint beam 2 assembled on the column 1. This embodiment proposes a device for processing and manufacturing the curved multi-joint beam.

[0058] Next, the above-mentioned curved multi-joint beam manufacturing device in this exemplary embodiment will be described in more detail.

[0059] In one embodiment, the position adjustment mechanism comprises:

[0060] A first scanning module, which is used to scan the curved tube 21 located at the processing station to obtain first scanning model data;

[0061] The robotic arm is used to adjust the position of the curved tube 21 according to the first scanning model data and the three-dimensional modeling data of the curved tube 21.

[0062] The aforementioned coordination between the first scanning module and the robotic arm enables position adjustment of the curved tube 21 at the processing station, facilitating control and improvement of the precision of the cutting process of the curved tube 21. When adjusting the position of the curved tube 21 based on the first scanning model data and the three-dimensional modeling data of the curved tube 21, the position of the curved tube 21 is primarily corrected by comparing the first scanning model data with the three-dimensional modeling data of the curved tube 21.

[0063] It should be noted that the three-dimensional modeling data of the above-mentioned curved tube 21 is an accurate three-dimensional model of the curved tube 21 established using three-dimensional software when designing the structure of the curved tube 21. The three-dimensional modeling data of the curved tube 21 can be imported into the CNC machining center in advance so that it can be used when needed.

[0064] In one embodiment, the processing mechanism comprises:

[0065] a cutting unit, configured to cut the curved tube 21 along an axial direction of the curved tube 21;

[0066] A hole processing unit, the hole processing unit is used to process special-shaped holes on the curved tube 21;

[0067] A reference line marking unit is used to mark a reference line on the curved tube 21.

[0068] The above-mentioned cutting processing unit, hole processing unit and reference line marking unit cooperate to realize step-by-step processing of the curved tube 21 after position calibration. Specifically, the cutting processing unit can cut the curved tube 21 into multiple parts along the axial direction of the curved tube 21 to realize batch processing, the hole processing unit can open special-shaped holes on the curved tube 21 according to the three-dimensional modeling data of the curved tube 21, and the reference line marking unit can mark the reference line on the curved tube 21, so as to control the accuracy of the assembly bracket structure 22 later.

[0069] Alternatively, the transport mechanism of the CNC machining center may be a conveyor belt, which includes but is not limited to a drive motor, a drive wheel, a driven wheel, and a conveyor belt wound around the drive wheel and the driven wheel. The drive wheel is connected to the output end of the drive motor, and the drive motor drives the drive wheel to rotate, thereby driving the driven wheel and the conveyor belt. By placing the curved tube 21 on the conveyor belt, the curved tube 21 can be transported by the conveyor module and transported to the processing station.

[0070] It should be noted that during the processing of the curved tube 21 by the CNC machining center, the first scanning module can be reused. On the one hand, the data obtained by the first scanning module can be used to calibrate the position of the curved tube 21. On the other hand, the data obtained by the first scanning module can also be used to determine the machining baseline during machining, thereby ensuring precise control of the position of the special-shaped holes and the baseline on the curved tube 21. The special-shaped holes include the end connection holes 211 and the connection holes 212 opened in the curved tube 21.

[0071] It should be noted that, by using the CNC machining center provided in this embodiment to process the curved tube 21, the cutting accuracy can be maintained within the range of ±0.05 mm, and compared with traditional manual cutting, the work efficiency is also significantly improved.

[0072] In one embodiment, reference Figures 8 to 10 As shown in the figure, the tire frame mechanism also includes a base 100, and the first positioning component 200 and the second positioning component 300 are arranged on the base 100, so as to facilitate the subsequent welding method to hoist the first positioning component 200 and the second positioning component 300 of the tire frame mechanism as a whole to the welding station, thereby avoiding the displacement of the positioned curved tube 21 and the bracket structure 22 and ensuring the manufacturing and processing accuracy.

[0073] It should be noted that the first positioning assembly 200 and the second positioning assembly 300 only need to be arranged separately on the base 100 to ensure that the respective positioning operations of the first positioning assembly 200 and the second positioning assembly 300 are not affected.

[0074] In one embodiment, reference Figures 8 to 10 As shown in FIG, the first positioning assembly 200 includes:

[0075] A horizontal support frame 210 is provided on the base 100 and is used to support the outer surface of the curved tube 21;

[0076] Two first position-limiting supports 220 are spaced apart and arranged on the base 100. The horizontal support frame 210 is located between the two first position-limiting supports 220. The first position-limiting supports 220 are used to abut against the ends of the curved tube 21 along its axial direction to position the curved tube 21 along its axial direction.

[0077] The position limiting support plate 230 is connected to the horizontal support frame 210, and the position limiting support plate 230 is set at an angle to the height direction of the horizontal support frame 210;

[0078] The positioning shaft 240 is detachably connected to the position-limiting support plate 230 , and the positioning shaft 240 and the position-limiting support plate 230 are vertically arranged.

[0079] By cooperating with the above-mentioned horizontal support frame 210, the limiting support plate 230, the positioning shaft 240 and the two first limiting support members 220, when the curved tube 21 needs to be positioned, it is only necessary to cooperate with the horizontal support frame 210 and the two first limiting support members 220 to position the curved tube 21 along the axial direction of the curved tube 21. The circumferential direction of the curved tube 21 can be adjusted by cooperating with the limiting support plate 230 and the positioning shaft 240 to ensure that the position of the bracket structure 22 is accurately assembled along the circumferential direction of the curved tube 21.

[0080] Specifically, a positioning hole 2301 is provided on the limiting support plate 230, and one end of the positioning shaft 240 is detachably connected to the positioning hole 2301, wherein the aperture of the positioning hole 2301 is slightly larger than the outer diameter of the positioning shaft 240, which can ensure that the positioning shaft 240 can extend into the positioning hole 2301 to temporarily fix the positioning shaft 240 and the limiting support plate 230, and can also ensure that the positioning shaft 240 can be pulled out from the positioning hole 2301 to disassemble the positioning shaft 240 and the limiting support plate 230.

[0081] In the process of adjusting the circumferential direction of the curved tube 21 by cooperating with the limiting support plate 230 and the positioning shaft 240, when the positioning shaft 240 is adjusted to be perpendicular to the limiting support plate 230, it is only necessary to insert the positioning shaft 240 into the positioning hole 2301 on the limiting support plate 230 to fix the positioning shaft 240 and the limiting support plate 230.

[0082] It should be noted that along the circumferential direction of the curved tube 21, the position of the end connection hole 211 is different from the position of the bracket structure 22. Therefore, during the above-mentioned manufacturing process, the curved tube 21 can be rotated around its own axis to a suitable angle with the help of the relative position of the end connection hole 211 and the bracket structure 22, so as to further position the bracket structure 22 later.

[0083] Specifically, refer to Figure 8 As shown in the figure, the limiting support plate 230 is set at an acute angle to the height direction of the horizontal support frame 210. The specific value of the acute angle is determined according to the relative position between the end connecting hole 211 and the bracket structure 22, so as to realize the rotation of the curved tube 21 around the axial direction of the curved tube 21. When the positioning shaft 240 is perpendicular to the limiting support plate 230, the curved tube can be accurately positioned.

[0084] In one embodiment, reference Figure 11 and Figure 12 As shown in FIG, the second positioning assembly 300 includes:

[0085] The bracket support member 310 is provided on the base 100 and is used to support the bracket structure 22 along the height direction of the bracket support member 310;

[0086] Two first bracket limiting support plates 320 are provided on the bracket support member 310 at intervals along the axial direction of the curved tube 21, and are used to abut against both side ends of the bracket structure 22 along the axial direction of the curved tube 21 to position the bracket structure 22 along the axial direction of the curved tube 21;

[0087] The second bracket limiting support plate 330 is provided on the bracket support member 310 and is perpendicular to the first bracket limiting support plate 320. The second bracket limiting support plate 330 is used to position the bracket structure 22 along the width direction of the bracket structure 22;

[0088] The width direction of the bracket structure 22 , the axial direction of the curved tube 21 , and the height direction of the bracket support member 310 are perpendicular to each other.

[0089] It should be noted that the axial direction of the curved tube 21 is as shown in FIG. Figure 1 The direction indicated by the arrows ab in the middle, the height direction of the bracket support member 310 is shown in FIG. Figure 1 and Figure 2 The direction indicated by the arrow cd in the middle, the width direction of the bracket structure 22 is shown in FIG. Figure 8 and Figure 11 The direction indicated by the arrow ef.

[0090] By cooperating with the above-mentioned bracket support member 310, the second bracket limiting support plate 330 and the two first bracket limiting support plates 320, when the bracket structure 22 needs to be positioned, it is only necessary to use the two first bracket limiting support plates 320 to position the bracket structure 22 along the axial direction of the curved tube 21, and use the bracket support member 310 to position the bracket structure 22 along the height direction of the bracket support member 310, and use the second bracket limiting support plate 330 to position the bracket structure 22 along the width direction of the bracket structure 22, thereby ensuring accurate positioning between the bracket structure 22 and the curved tube 21.

[0091] It should be noted that multiple bracket structures 22 need to be assembled on each curved tube 21, and the multiple bracket structures 22 are evenly spaced along the axial direction of the curved tube 21. Multiple second positioning assemblies 300 are provided on the base 100, and the multiple second positioning assemblies 300 are spaced along the axial direction of the curved tube 21. This allows for simultaneous positioning of multiple bracket structures 22 on the curved tube 21, ensuring operational efficiency.

[0092] The above manufacturing process can ensure that the positioning error between the two bracket structures 22 along the axial direction of the curved tube 21 is kept within 0.5 mm, and the assembly error between the bracket structure 22 and the end connection hole 211 is kept within 0.5 mm.

[0093] It should be noted that after the bottom of the bracket structure 22 is attached to the bracket support member 310, the end of the bracket structure 22 on the side of the notch is attached to the curved tube 21 along the width direction of the bracket structure 22. At this time, there is a gap between the end of the bracket structure 22 on the side away from the notch and the second bracket limit support plate 330. The size of this gap can be measured to ensure accurate positioning along the width direction of the bracket structure 22. It should be explained that the gap between the end of the bracket structure 22 on the side away from the notch and the second bracket limit support plate 330 is generally set to just enough to fit the bracket structure 22 into the accommodation space formed by the bracket support member 310, the second bracket limit support plate 330, and the two first bracket limit support plates 320.

[0094] It should also be noted that the first scanning module and the second scanning module in this embodiment can be instruments with infrared ray scanning function. The specific structure of this type of instrument belongs to the existing technical means and will not be elaborated here.

[0095] To facilitate understanding of the curved multi-joint beam manufacturing device provided in this embodiment, the following provides a process for manufacturing and processing the curved multi-joint beam 2 using the device:

[0096] Step 1: transport, position calibration and processing of the curved tube 21 by a CNC machining center;

[0097] Step 2: Use the first positioning assembly 200 of the tire frame mechanism to position the curved tube 21;

[0098] Step 3: Use the second positioning assembly 300 of the tire frame mechanism to position the multiple bracket structures 22 relative to the curved tube 21;

[0099] Step 4: The welding mechanism 400 determines the positions of the welding points of the bracket structure 22 on the curved tube 21 , and welds the bracket structure 22 to the curved tube 21 according to the positions of the welding points.

[0100] For example, the first step of transporting, calibrating, and processing the curved tube 21 by a CNC machining center may further include:

[0101] The curved tube 21 is transported to the processing station by the transport mechanism of the CNC machining center;

[0102] Scanning the curved tube 21 by a first scanning module of a CNC machining center to obtain first scanning model data;

[0103] According to the first scanning model data and the three-dimensional modeling data of the curved tube 21, the position of the curved tube 21 is adjusted by using a robotic arm of a CNC machining center to calibrate the position of the curved tube 21;

[0104] After the position of the curved tube 21 is calibrated, the curved tube 21 is cut by a cutting unit of a CNC machining center;

[0105] After the cutting process is completed, the curved tube 21 is scanned again by the first scanning module to obtain second scanning model data;

[0106] According to the second scanning model data and the three-dimensional modeling data of the curved tube 21, the hole machining unit of the CNC machining center is used to machine special-shaped holes on the curved tube 21, and the reference line marking unit of the CNC machining center is used to mark a reference line on the curved tube 21.

[0107] The above-described manufacturing process enables the position of the curved tube 21 at the processing station to be adjusted, facilitating the control and improvement of the cutting accuracy of the curved tube 21. Furthermore, the process of cutting and drilling the curved tube 21 is automated. Compared with traditional cutting processes, this simplifies the cutting process and enables the cutting, cutting, and drilling of the curved tube 21 to be completed on a single CNC machining center, significantly improving production efficiency.

[0108] It should be noted that the steel guardrail mentioned in the background art comprises a column 1 and a curved multi-joint beam 2 assembled on the column 1. This embodiment provides a process for processing and manufacturing the curved multi-joint beam.

[0109] Specifically, when the position of the curved tube 21 is adjusted using the robotic arm of the CNC machining center based on the first scanning model data and the three-dimensional modeling data of the curved tube 21, the position of the curved tube 21 is mainly corrected by comparing the first scanning model data and the three-dimensional modeling data of the curved tube 21.

[0110] Specifically, the cutting processing unit of the CNC machining center can be a laser cutting instrument integrated on a robotic arm that can emit a high-power density laser beam. Under the irradiation of the high-power density laser beam, the curved tube 21 is quickly heated to the vaporization temperature and evaporates to form holes. As the robotic arm moves, the light beam moves relative to the curved tube 21, and the holes continuously form a very narrow slit, completing the cutting of the curved tube 21.

[0111] Specifically, the second scanning model data and the three-dimensional modeling data of the curved tube 21 can be understood as the result of comparing the first scanning model data with the three-dimensional modeling data of the curved tube 21. The hole processing unit of the CNC machining center can be a processing instrument integrated on a robotic arm that can emit a high-power density laser beam. As the robotic arm moves, the beam moves relative to the curved tube 21, and can cut away the sheet steel body on the curved tube 21, thereby processing a special-shaped hole. The reference line marking unit of the CNC machining center can be a processing instrument integrated on a robotic arm that can spray paint. As the robotic arm moves, it can draw lines on the curved tube 21 to achieve the purpose of marking a reference line on the curved tube 21.

[0112] It should be noted that the three-dimensional modeling data of the above-mentioned curved tube 21 is an accurate three-dimensional model of the curved tube 21 established using three-dimensional software when designing the structure of the curved tube 21. The three-dimensional modeling data of the curved tube 21 can be imported into the CNC machining center in advance so that it can be used when needed.

[0113] It should also be noted that the processing procedures of each module of the CNC machining center can be controlled by a controller, which is conducive to ensuring operating efficiency and processing accuracy.

[0114] For example, the second step of positioning the curved tube 21 using the first positioning assembly 200 of the tire frame mechanism may further include:

[0115] Place the curved tube 21 on the horizontal support frame 210 of the first positioning assembly 200, and make the end of the curved tube 21 along the axial direction abut against the first limiting support member 220 of the first positioning assembly 200;

[0116] Pass the positioning shaft 240 through the two end connection holes 211 on the curved tube 21;

[0117] The curved tube 21 is rotated and adjusted around its axial direction until the positioning shaft 240 is perpendicular to the position-limiting support plate 230 on the horizontal support frame 210 , and then the positioning shaft 240 and the position-limiting support plate 230 are fixed.

[0118] The above-described manufacturing process enables precise positioning of the curved tube 21, wherein the positioning error along the axial direction of the curved tube 21 can be controlled within 0.5 mm, which facilitates the refined control of subsequent process steps. When the curved tube 21 needs to be positioned, the curved tube 21 can be positioned axially by simply using the horizontal support frame 210 and the two first position-limiting supports 220. The position-limiting support plate 230 and the positioning shaft 240 cooperate to adjust the circumferential direction of the curved tube 21, ensuring that the bracket structure 22 is accurately assembled along the circumferential direction of the curved tube 21.

[0119] It should be noted that along the circumferential direction of the curved tube 21, the position of the end connection hole 211 is different from the position of the bracket structure 22. Therefore, during the above-mentioned manufacturing process, the curved tube 21 can be rotated around its own axis to a suitable angle with the help of the relative position of the end connection hole 211 and the bracket structure 22, so as to further position the bracket structure 22 later.

[0120] For example, the bracket structure 22 is a C-shaped bracket structure 22. The third step of positioning the plurality of bracket structures 22 relative to the curved tube 21 using the second positioning assembly 300 of the tire frame mechanism may further include:

[0121] Align the bracket structure 22 with the accommodation space between the two first bracket limiting support plates 320 of the second positioning assembly 300, and make the notch of the bracket structure 22 face the curved tube 21;

[0122] The bracket structure 22 is moved toward the bracket support 310 of the second positioning assembly 300 until the bottom of the bracket structure 22 abuts the bracket support 310 .

[0123] The above-mentioned manufacturing process enables the positioning of the bracket structure 22, ensuring refined control of subsequent processes. When the bracket structure 22 needs to be positioned, it is only necessary to use the two first bracket limiting support plates 320 to position the bracket structure 22 along the axial direction of the curved tube 21, the bracket support member 310 to position the bracket structure 22 along the height direction of the bracket support member 310, and the second bracket limiting support plate 330 to position the bracket structure 22 along the width direction of the bracket structure 22, ensuring accurate positioning between the bracket structure 22 and the curved tube 21.

[0124] It should be noted that after the bottom of the bracket structure 22 is attached to the bracket support member 310, the end of the bracket structure 22 on the side of the notch is attached to the curved tube 21 along the width direction of the bracket structure 22. At this time, there is a gap between the end of the bracket structure 22 on the side away from the notch and the second bracket limit support plate 330. The size of this gap can be measured to ensure accurate positioning along the width direction of the bracket structure 22. It should be explained that the gap between the end of the bracket structure 22 on the side away from the notch and the second bracket limit support plate 330 is generally set to just enough to fit the bracket structure 22 into the positioning space formed by the bracket support member 310, the second bracket limit support plate 330, and the two first bracket limit support plates 320.

[0125] It should also be noted that each curved tube 21 requires assembly of multiple bracket structures 22, evenly spaced along the axial direction of the curved tube 21. Multiple second positioning assemblies 300 are provided on the base 100, enabling simultaneous positioning of multiple bracket structures 22 on the curved tube 21, ensuring operational efficiency. The aforementioned manufacturing process ensures that the positioning error between two bracket structures 22 along the axial direction of the curved tube 21 is maintained within 0.5 mm, and the assembly error between the bracket structure 22 and the end connection hole 211 is maintained within 0.5 mm.

[0126] Before proceeding to step 4, the position of the bracket structure 22 needs to be reviewed. After the review is correct, the bracket structure 22 can be tack welded using CO2 gas shielded welding. This will facilitate the subsequent lifting and movement of the curved tube 21 and the bracket structure 22. After the bracket structure 22 is tack welded using CO2 gas shielded welding, the position of the bracket structure 22 can be reviewed again to ensure the assembly accuracy of the bracket after tack welding.

[0127] For example, the fourth step of determining the welding point positions of the bracket structure 22 on the curved tube 21 by the welding mechanism 400 and welding the bracket structure 22 to the curved tube 21 according to the welding point positions may further include:

[0128] Hoist the base 100, the first positioning assembly 200, the second positioning assembly 300, the curved tube 21 and the bracket structure 22 as a whole to the welding station;

[0129] The curved tube 21 and the bracket structure 22 are scanned by the second scanning module of the welding mechanism 400 to obtain third scanning model data;

[0130] Determine the welding arc starting point position and welding arc extinction point position of the bracket structure 22 on the curved tube 21 according to the third scanning model data;

[0131] According to the welding start command, the bracket structure 22 is welded to the curved tube 21 according to the welding arc starting point position and the welding arc extinction point position.

[0132] The above-mentioned manufacturing process enables automated welding, which not only saves human resources but also controls the quality of the weld formation. Compared with traditional manual welding, this solves the problem of unstable manual welding quality, and the weld formation is stable and controllable, with excellent welding quality. In terms of welding efficiency, the four-person division of labor and cooperative assembly and welding is reduced to two-person control welding, and multiple welding mechanisms 400 can be operated simultaneously for welding, which significantly improves welding efficiency. In terms of welding formation quality, the weld foot is plump and the shape is beautiful.

[0133] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A device for manufacturing a curved multi-joint beam, characterized in that: include: A CNC machining center includes a transport mechanism, a position adjustment mechanism, and a machining mechanism. The transport mechanism is used to transport a curved tube to a machining station. The position adjustment mechanism is used to calibrate the position of the curved tube at the machining station. The machining mechanism is used to process the calibrated curved tube. The tire frame mechanism includes a first positioning assembly and a second positioning assembly, wherein the first positioning assembly is used to position the curved tube, and the second positioning assembly is used to position multiple bracket structures relative to the curved tube; The welding mechanism includes a welding point confirmation module and a welding module. The welding point confirmation module is used to determine the welding point positions of the bracket structure on the curved tube. The welding module is used to weld the bracket structure to the curved tube according to the welding point positions.

2. The curved multi-joint beam manufacturing device according to claim 1, characterized in that: The position adjustment mechanism comprises: a first scanning module, configured to scan the curved tube to obtain first scanning model data; A robotic arm is used to adjust the position of the curved tube according to the first scanning model data and the three-dimensional modeling data of the curved tube.

3. The curved multi-joint beam manufacturing device according to claim 1, characterized in that: The processing mechanism includes: a cutting unit, configured to cut the curved tube along an axial direction of the curved tube; a hole processing unit, the hole processing unit being used to process special-shaped holes on the curved tube; A reference line marking unit is used to mark a reference line on the curved tube.

4. The device for manufacturing a curved multi-joint beam according to claim 1, characterized in that: The tire frame mechanism also includes a base, and the first positioning assembly and the second positioning assembly are arranged on the base.

5. The device for manufacturing a curved multi-joint beam according to claim 4, characterized in that: The first positioning component includes: a horizontal support frame, the horizontal support frame being arranged on the base and being used to support the outer surface of the curved tube; Two first position-limiting supports are spaced apart and arranged on the base, the horizontal support frame is located between the two first position-limiting supports, and the first position-limiting supports are used to abut against the ends of the curved tube along the axial direction thereof to position the curved tube along the axial direction of the curved tube; A position limiting support plate is connected to the horizontal support frame, and the position limiting support plate is arranged at an angle to the height direction of the horizontal support frame; A positioning shaft is detachably connected to the position-limiting support plate, and the positioning shaft and the position-limiting support plate are arranged perpendicularly.

6. The device for manufacturing a curved multi-joint beam according to claim 5, characterized in that: A positioning hole is formed on the position-limiting support plate, and one end of the positioning shaft is detachably connected to the positioning hole.

7. The device for manufacturing a curved multi-joint beam according to claim 5, characterized in that: The position-limiting support plate and the horizontal support frame are arranged at an acute angle in height direction.

8. The device for manufacturing a curved multi-joint beam according to claim 5, characterized in that: The second positioning component includes: a bracket support member, the bracket support member being disposed on the base and being used to support the bracket structure along a height direction of the bracket support member; Two first bracket limiting support plates are provided on the bracket support member at intervals along the axial direction of the curved tube, and are used to abut against both side ends of the bracket structure along the axial direction of the curved tube to position the bracket structure along the axial direction of the curved tube; a second bracket limiting support plate, provided on the bracket support member and perpendicular to the first bracket limiting support plate, the second bracket limiting support plate being used to position the bracket structure along the width direction of the bracket structure; Wherein, the width direction of the bracket structure, the axial direction of the curved tube and the height direction of the bracket support are perpendicular to each other.

9. The device for manufacturing a curved multi-joint beam according to claim 8, characterized in that: A plurality of the second positioning assemblies are provided, and the plurality of the second positioning assemblies are arranged on the base at intervals along the axial direction of the curved tube.

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