Highway guardrail stainless steel round tube post processing technology

Abstract

The application relates to a highway guardrail stainless steel round pipe stand machining process and relates to the technical field of round pipe stand machining, which comprises the following steps: part preparation: machining a stainless steel round pipe, a flange and a meniscus; positioning assembly: fixing and installing an auxiliary positioning device, the auxiliary positioning device is provided with a mounting mechanism, a first positioning mechanism and a second positioning mechanism, the stainless steel round pipe is connected with the mounting mechanism, the flange is connected with the first positioning mechanism, and the meniscus is connected with the second positioning mechanism; welding: spot welding the gap between the stainless steel round pipe and the flange and the gap between the stainless steel round pipe and the meniscus, and completing the assembly of the highway guardrail stainless steel round pipe stand; separating the highway guardrail stainless steel round pipe stand from the auxiliary positioning device, and full welding the gap between the stainless steel round pipe and the flange and the gap between the stainless steel round pipe and the meniscus. The application has the effect of improving the production efficiency of the highway guardrail stainless steel round pipe stand.

Description

Technical Field

[0001] This application relates to the technical field of round tube posts, and in particular to a processing technology for stainless steel round tube posts for highway guardrails. Background Technology

[0002] Stainless steel round tube posts for highway guardrails are crucial for ensuring traffic safety. Their main components are stainless steel round tubes, flanges, and menisci. During production, these three parts are processed, assembled, and then welded together.

[0003] In existing technologies, to improve the assembly speed of stainless steel round tube posts for highway guardrails, specialized jigs are typically manufactured to position the flanges and menisci. Using these jigs, the flange is first passed through the stainless steel round tube, which is then vertically fixed. Next, the menisci are placed at the location where they need to be welded to the stainless steel round tube, and welding is then performed. Due to the curved structure of the menisci, manual assistance is required to fix them during the welding process.

[0004] In summary, the assembly process of stainless steel round tube posts for highway guardrails is relatively complicated, which affects the production efficiency of these posts. Summary of the Invention

[0005] To improve the production efficiency of stainless steel round tube posts for highway guardrails, this application provides a processing technology for stainless steel round tube posts for highway guardrails.

[0006] This application provides a processing technology for stainless steel round tube posts for highway guardrails, which adopts the following technical solution: A processing method for stainless steel round tube posts for highway guardrails includes the following steps: Component fabrication: machining stainless steel round tubes, flanges, and menisci; Positioning and assembly: The auxiliary positioning device is fixedly installed. The auxiliary positioning device is equipped with an installation mechanism, a first positioning mechanism and a second positioning mechanism. The stainless steel round tube is connected to the installation mechanism, the flange is connected to the first positioning mechanism and the half-mens plate is connected to the second positioning mechanism. Welding: Spot welding is performed on the gaps between the stainless steel round tube and the flange, and between the stainless steel round tube and the meniscus using a welding robot to complete the assembly of the stainless steel round tube posts for highway guardrails; the stainless steel round tube posts for highway guardrails are separated from the auxiliary positioning device, and the gaps between the stainless steel round tube and the flange, and between the stainless steel round tube and the meniscus are fully welded using a welding robot. Post-processing: Polishing and sanding are performed on the outer surface of each welded stainless steel round tube post of the highway guardrail.

[0007] Optionally, process stainless steel round tubes: use a laser cutting machine to cut an arc groove at one end of the stainless steel round tube, and then use a bending machine to bend the end of the stainless steel round tube with the arc groove. Flange processing: The flange is rectangular in shape, and mounting holes are made through a pair of opposite side walls of the flange using a laser cutting machine; Processing the meniscus: The steel strip is laser-cut and then stamped, so that the cut steel strip is bent with the same curvature as the arc groove. At the same time, three first through grooves are punched, which are evenly distributed along the length of the cut steel strip.

[0008] Optionally, the mounting mechanism includes: Base plate; Mounting plate, which is slidably mounted on the base plate; The first column is fixedly installed on the end of the base plate away from the mounting plate; The second column is a telescopic rod mechanism. The fixed end of the second column is fixedly installed on the end of the base plate away from the first column. The end of the second column away from the mounting plate is an arc with the opening facing upward. A clamping assembly is connected to the end of the first column away from the mounting plate, and the clamping assembly is capable of clamping the stainless steel round tube. A drive assembly, which is connected to the mounting plate and is capable of driving the mounting plate to slide; A lifting assembly is connected to the second column and is used to control the second column to lift.

[0009] By adopting the above technical solution, stainless steel round tubes, flanges, and menisci are first prepared according to requirements. Then, the stainless steel round tubes are placed on the first and second columns, the flanges are connected to the first positioning mechanism, and the menisci are connected to the second positioning mechanism. The drive assembly is then activated, causing the mounting plate to move closer to the first positioning mechanism. During this process, the clamping assembly automatically clamps the stainless steel round tube, and the second column retracts. The mounting plate continues to move, allowing the straight end of the stainless steel round tube to pass through the mounting hole of the flange. Simultaneously, the second positioning mechanism moves the menisci to a position where it abuts against the arc-shaped groove of the stainless steel round tube, completing the rapid assembly of the stainless steel round tube, flange, and menisci, thus improving the production efficiency of stainless steel round tube columns for highway guardrails.

[0010] Optionally, the clamping assembly includes: Two clamping plates, one end of each clamping plate being hinged to the end of the first column away from the mounting plate; when the two clamping plates are closed, they can clamp the stainless steel round tube tightly; Two first telescopic rods, the fixed ends of the two first telescopic rods are hinged to the side wall of the first column and the two first telescopic rods are arranged opposite to each other, and the movable ends of the two first telescopic rods correspond one-to-one with the two clamping plates and are hinged. The second telescopic rod has its fixed end fixedly mounted on the base plate, and its movable end facing the mounting plate. The rodless cavity of the second telescopic rod is connected to the rodless cavities of the two first telescopic rods. A ramp is provided on one end of the mounting plate near the second telescopic rod, and the movable end of the second telescopic rod can abut against the ramp. A first spring, one end of which is fixedly connected to the fixed end of the second telescopic rod, and the other end of which is fixedly connected to the movable end of the second telescopic rod, wherein the compression direction of the first spring is along the extension and retraction direction of the second telescopic rod.

[0011] By adopting the above technical solution, during the movement of the mounting plate, the ramp can compress the second telescopic rod and the first spring. The compression of the second telescopic rod causes the first telescopic rod to extend, thereby causing the clamping plate to clamp the stainless steel round tube. When the mounting plate moves in the opposite direction, the elastic force of the first spring causes the second telescopic rod to return to its original position, thereby automatically releasing the clamping plate from the stainless steel round tube, thus improving the production efficiency of stainless steel round tube posts for highway guardrails.

[0012] Optionally, the driving component includes: The motor is fixedly mounted on the base plate; A first rotating wheel is rotatably mounted on the base plate; The second rotating wheel is coaxially and fixedly connected to the output end of the motor. A cable, the two ends of which are connected, and the cable is wound around the first and second rotating wheels; The movable block is fixedly connected to the cable and the mounting plate.

[0013] By adopting the above technical solution, the motor drives the first rotating wheel, which in turn drives the cable, which in turn drives the movable block, which in turn drives the mounting plate. During this process, the second rotating wheel also rotates, guiding the movement of the cable and improving the production efficiency of the stainless steel round tube posts for highway guardrails.

[0014] Optionally, the lifting assembly includes: The third telescopic rod has its fixed end fixedly installed on the side wall of the mounting plate near the second telescopic rod, and its movable end facing the slope. The rodless cavity of the third telescopic rod is connected to the rod cavity of the second column. The second spring has one end fixedly connected to the fixed end of the third telescopic rod and the other end fixedly connected to the movable end of the third telescopic rod. The compression direction of the second spring is along the extension and retraction direction of the third telescopic rod.

[0015] By adopting the above technical solution, when the mounting plate moves to the point where the movable end of the second telescopic rod no longer abuts against the slope, the movable end of the second telescopic rod abuts against the side wall of the mounting plate. As the mounting plate continues to slide, the movable end of the second telescopic rod compresses the third telescopic rod, and the second spring is compressed accordingly. The hydraulic oil in the rodless chamber of the third telescopic rod flows into the rod-bearing chamber of the second column, causing the second column to contract and no longer abut against the stainless steel round tube. This avoids interference from the second column during the process of the stainless steel round tube passing through the flange, and improves the production efficiency of the stainless steel round tube columns for highway guardrails.

[0016] Optionally, the first positioning mechanism includes: A riser frame, which is fixedly installed on the base plate; The receiving plate is a hollow plate with one open end. The flange can enter the receiving plate when the mounting hole is parallel to the straight end face of the stainless steel round tube. The receiving plate is fixedly installed on the raising frame, and the open end of the receiving plate faces the end away from the base plate. The first clamping plate is U-shaped and is fixedly installed on one end of the receiving plate near the mounting plate, with the U-shaped opening of the first clamping plate facing the mounting plate. The second clamping plate is hinged to the outer wall of the receiving plate. The second clamping plate and the first clamping plate form a clamping cavity, which communicates with the interior of the receiving plate. The flange can enter the clamping cavity. A torsion spring is sleeved on the hinge shaft between the second clamping plate and the receiving plate. One end of the torsion spring is fixedly connected to the second clamping plate, and the other end of the torsion spring is fixedly connected to the receiving plate. The fourth telescopic rod has its fixed end fixedly installed on the heightening frame, and its movable end passing through and slidingly installed on the receiving plate. The telescopic direction of the fourth telescopic rod is along the connection direction between the clamping cavity and the inside of the receiving plate. The rodless cavity of the fourth telescopic rod is connected to the rodless cavity of the second telescopic rod.

[0017] By employing the above technical solution, multiple flanges are inserted from the open end of the receiving plate, and the flanges fall onto the bottom wall of the receiving plate under their own weight. When the mounting plate moves and the ramp presses against the second telescopic rod, the second telescopic rod contracts, causing the fourth telescopic rod to extend. The fourth telescopic rod pushes the bottom flange into the cavity formed by the first and second clamping plates, making the mounting hole on the flange coaxial with the straight end of the stainless steel tube. The mounting plate continues to move, allowing the straight end of the stainless steel tube to pass through the mounting hole of the flange. When the mounting plate moves to its limit position, the distance between the straight end face of the stainless steel tube and the flange is exactly the length required in the stainless steel tube column processing, thus completing the positioning of the flange. When the mounting plate moves in the reverse direction, the flange has been relatively fixed to the stainless steel tube through spot welding. The flange will move in the reverse direction with the stainless steel tube, causing the second clamping plate to flip along the hinge axis, and the torsion spring to deform accordingly. After the flange is completely separated from the second clamping plate, the second clamping plate returns to its original position under the elastic force of the torsion spring, making it easier to clamp the next flange and improving the production efficiency of stainless steel round tube columns for highway guardrails.

[0018] Optionally, the second positioning mechanism includes: The first placement plate is an arc-shaped plate with the same curvature as the meniscus. The first placement plate is fixedly connected to the end of the mounting plate away from the second column. A sliding groove is provided on the end of the first placement plate away from the mounting plate, and the meniscus can slide within the sliding groove; The second through slot is formed through the first placement plate; The third through slot is formed through the first placement plate. The third through slot and the second through slot are on the same straight line and correspond one-to-one with the first through slots formed at both ends of the meniscus and are coaxial. The cross-sectional area of ​​the second through slot and the cross-sectional area of ​​the third through slot are both larger than the cross-sectional area of ​​the first through slot. The fifth telescopic rod has its fixed end fixedly mounted on the mounting plate, its movable end coaxial with the second through groove, and its rodless cavity communicating with the rodless cavity of the third telescopic rod. The sixth telescopic rod has its fixed end fixedly mounted on the mounting plate, and its movable end coaxial with the third through groove. The movable ends of the fifth telescopic rod and the sixth telescopic rod are both boss-shaped and can abut against the side wall of the first through groove after passing through it. The rodless cavity of the sixth telescopic rod is connected to the rodless cavity of the third telescopic rod. The second placement plate is a hollow structure with openings at both ends. The second placement plate is fixedly installed on the end of the first placement plate away from the mounting plate. The meniscus can enter the groove from inside the second placement plate. The seventh telescopic rod has its fixed end fixedly installed on the first placement plate, and its movable end able to abut against the meniscus. The telescopic direction of the seventh telescopic rod is opposite to the length of the slide groove, and the rodless cavity of the seventh telescopic rod is connected to the rodless cavity of the second telescopic rod.

[0019] By adopting the above technical solution, before use, multiple menisci are placed in the second placement plate. Under their own weight, the menisci fall into the sliding groove, with the bottom menisci near the seventh telescopic rod abutting against the movable end of the seventh telescopic rod. When the mounting plate moves and the ramp squeezes the second telescopic rod, the second telescopic rod retracts, causing the seventh telescopic rod to extend, pushing the bottom menisci into the sliding groove away from the seventh telescopic rod, with the menisci positioned below the bend end of the stainless steel round tube. When the mounting plate continues to move, causing the second telescopic rod to retract the third telescopic rod, the retraction of the third telescopic rod causes the fifth and sixth telescopic rods to extend. The fifth and sixth telescopic rods move the menisci towards the bend end of the stainless steel round tube, abutting against the arc-shaped groove at the bend end of the stainless steel round tube, thus completing the rapid assembly of the menisci and improving the production efficiency of the stainless steel round tube posts for highway guardrails.

[0020] Optionally, a baffle is fixedly installed on the end of the second column away from the first column, and the baffle is higher than the bottom wall of the arc end of the second column.

[0021] By adopting the above technical solution, the baffle can limit the placement of stainless steel round tubes, which helps to improve assembly efficiency and thus improve the production efficiency of stainless steel round tube columns for highway guardrails.

[0022] In summary, this application includes at least one of the following beneficial technical effects: First, stainless steel round tubes, flanges, and menisci are prepared according to requirements. Then, the stainless steel round tubes are placed on the first and second columns. The flanges are connected to the first positioning mechanism, and the menisci are connected to the second positioning mechanism. The drive assembly is then activated, causing the mounting plate to move closer to the first positioning mechanism. During this process, the clamping assembly automatically clamps the stainless steel round tube, and the second column retracts. The mounting plate continues to move, allowing the straight end of the stainless steel round tube to pass through the mounting hole of the flange. Simultaneously, the second positioning mechanism moves the menisci to a position where it abuts against the arc-shaped groove of the stainless steel round tube, completing the rapid assembly of the stainless steel round tube, flange, and menisci, thus improving the production efficiency of stainless steel round tube columns for highway guardrails. Multiple flanges are inserted into the opening of the receiving plate, and they fall onto the bottom wall of the receiving plate under their own weight. When the mounting plate moves and the ramp presses against the second telescopic rod, the second telescopic rod contracts, causing the fourth telescopic rod to extend. The fourth telescopic rod pushes the bottom flange into the cavity formed by the first and second clamping plates, making the mounting hole on the flange coaxial with the straight end of the stainless steel tube. The mounting plate continues to move, allowing the straight end of the stainless steel tube to pass through the mounting hole of the flange. When the mounting plate moves to its limit position, the distance between the straight end face of the stainless steel tube and the flange is exactly the length required in the stainless steel tube column processing, thus completing the positioning of the flange. When the mounting plate moves in the reverse direction, the flange has been relatively fixed to the stainless steel tube through spot welding. The flange moves in the reverse direction with the stainless steel tube, causing the second clamping plate to flip along the hinge axis, and the torsion spring deforms accordingly. When the flange is completely separated from the second clamping plate, the second clamping plate returns to its original position under the elastic force of the torsion spring, facilitating the clamping of the next flange and improving the production efficiency of the stainless steel tube columns for highway guardrails. Before use, multiple menisci are placed in the second placement plate. Under their own weight, the menisci fall into the chute, with the bottom menisci near the seventh telescopic rod abutting against the movable end of the seventh telescopic rod. When the mounting plate moves and the ramp presses against the second telescopic rod, the second telescopic rod retracts, causing the seventh telescopic rod to extend, pushing the bottom menisci into the chute away from the seventh telescopic rod, placing the menisci below the bend end of the stainless steel tube. As the mounting plate continues to move, causing the second telescopic rod to retract the third telescopic rod, the retraction of the third telescopic rod causes the fifth and sixth telescopic rods to extend. The fifth and sixth telescopic rods move the menisci towards the bend end of the stainless steel tube, abutting against the arc-shaped groove at the bend end of the stainless steel tube, thus completing the rapid assembly of the menisci and improving the production efficiency of the stainless steel tube posts for highway guardrails. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a structural schematic diagram from another angle of an embodiment of this application; Figure 3 This is an embodiment of the present application. Figure 1 Enlarged view of point A; Figure 4 This is a schematic diagram illustrating the structure of the second positioning mechanism in this embodiment of the application; Figure 5 This is an embodiment of the present application. Figure 4 Enlarged view of point B; Figure 6 This is an embodiment of the present application. Figure 4 Enlarged view of point C.

[0024] Explanation of reference numerals in the attached figures: 1. Stainless steel round tube; 11. Arc-shaped groove; 2. Flange; 21. Mounting hole; 3. Meniscus; 31. First through groove; 411. Base plate; 412. Mounting plate; 413. First column; 414. Second column; 415. Clamping assembly; 4151. Clamping plate; 4152. First telescopic rod; 4153. Second telescopic rod; 4154. Ramp; 4155. First spring; 416. Drive assembly; 4161. Motor; 4162. First rotating wheel; 4163. Second rotating wheel; 4164. Cable; 4165. Movable block; 417. Lifting assembly; 4171. Third telescopic rod; 4172. Second spring; 421. Raising frame; 422. Receiving plate; 423. First clamping plate; 424. Second clamping plate; 425. Torsion spring; 426. Fourth telescopic rod; 431. First placement plate; 432. Slide groove; 433. Second through groove; 434. Third through groove; 435. Fifth telescopic rod; 436. Sixth telescopic rod; 437. Second placement plate; 438. Seventh telescopic rod; 5. Baffle. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses a processing technology for stainless steel round tube posts for highway guardrails.

[0027] Reference Figure 1 The processing technology for stainless steel round tube posts for highway guardrails includes the following steps; Component preparation: Machining stainless steel round tube 1: Open an arc groove 11 at one end of the stainless steel round tube 1, and then bend the end of the stainless steel round tube 1 with the arc groove 11. Processing flange 2: Flange 2 is rectangular in shape, and mounting holes 21 are provided through a set of opposite side walls of flange 2; Processing the half-mens plate 3: Cut three first through grooves 31 in the stainless steel plate. The three first through grooves 31 are located in the length direction of the stainless steel plate and are evenly distributed. Then bend along the width direction of the stainless steel plate. The bending arc is the same as the arc of the arc groove 11.

[0028] Positioning and assembly: During mass production, the auxiliary positioning device is first fixedly installed. The auxiliary positioning device is equipped with an installation mechanism, a first positioning mechanism and a second positioning mechanism. The processed stainless steel round tube 1 is connected to the installation mechanism, the flange 2 is connected to the first positioning mechanism and the meniscus 3 is connected to the second positioning mechanism. During product trial production, the stainless steel round tube post of highway guardrail, which is disclosed in application number 2023235289543, can be positioned and assembled using a convenient assembly tooling fixture.

[0029] Reference Figure 1 and Figure 2 The installation mechanism includes a base plate 411, on which an installation plate 412 is slidably mounted. A first column 413 is fixedly mounted on the end of the installation plate 412 away from the installation plate 412. A second column 414 is fixedly mounted on the end of the base plate 411 away from the first column 413. The second column 414 is a telescopic rod structure, and the end of the second column 414 away from the base plate 411 is an upward-opening arc. A clamping assembly 415 is connected to the end of the first column 413 away from the installation plate 412, which can clamp the stainless steel round tube 1. A driving assembly 416 is connected to the installation plate 412, which can drive the installation plate 412 to slide. A lifting assembly 417 is connected to the second column 414, which is used to control the lifting of the second column 414.

[0030] In use, the stainless steel tube 1 is first placed on the clamping assembly 415 and the second column 414, with the bent end of the stainless steel tube 1 close to the clamping assembly 415. Since one end of the stainless steel tube 1 is bent, the bent end of the stainless steel tube 1 always faces the mounting plate 412. Then, the drive assembly 416 runs, driving the mounting plate 412 to move closer to the first positioning mechanism; at the same time, the clamping assembly 415 runs, clamping the stainless steel tube 1. Then, the lifting assembly 417 runs, causing the second column 414 to extend and retract, no longer abutting against the stainless steel tube 1. At this time, the mounting plate 412 continues to move, so that the straight end of the stainless steel tube 1 passes through the mounting hole 21 of the flange 2 fixed by the first positioning assembly; and when the mounting plate 412 moves to the limit position, the distance between the straight end of the stainless steel tube 1 and the flange 2 is the distance between the two in the actual assembly process. This realizes the positioning and assembly of the flange 2, realizes the automation of flange assembly, and helps to improve assembly efficiency.

[0031] Reference Figure 2 A baffle 5 is fixedly installed on the end of the second column 414 away from the first column 413. The baffle 5 is higher than the bottom wall of the arc end of the second column 414.

[0032] The baffle 5 can limit the placement of the stainless steel round tube 1, which helps to improve assembly efficiency.

[0033] Reference Figure 1The clamping assembly 415 includes two clamping plates 4151. One end of each clamping plate 4151 is hinged to the end of the first column 413 away from the mounting plate 412. Both clamping plates 4151 are semi-circular arc-shaped, and when closed, they can clamp the stainless steel tube 1. The movable end of the first telescopic rod 4152 is hinged to the mutually distant end of each clamping plate 4151. The fixed ends of the two first telescopic rods 4152 are hinged to the side wall of the first column 413 and are arranged opposite to each other. The fixed end of the second telescopic rod 4153 is fixedly installed on the base plate 411, and the movable end of the second telescopic rod 4153 faces the mounting plate 412. The rodless cavity of the second telescopic rod 4153 is connected to the rodless cavities of the two first telescopic rods 4152. The cavities of the second telescopic rod 4153 and the first telescopic rods 4152 are filled with hydraulic oil. A ramp 4154 is provided on one end of the mounting plate 412 near the second telescopic rod 4153. The ramp 4154 can abut against the movable end of the second telescopic rod 4153. A first spring 4155 is sleeved on the second telescopic rod 4153. One end of the first spring 4155 is fixedly connected to the fixed end of the second telescopic rod 4153, and the other end of the first spring 4155 is fixedly connected to the movable end of the second telescopic rod 4153.

[0034] Initially, the movable end of the second telescopic rod 4153 abuts against the ramp 4154. When the mounting plate 412 slides, the ramp 4154 compresses the second telescopic rod 4153, compressing the first spring 4155. Hydraulic oil in the rodless chamber of the second telescopic rod 4153 enters the rodless chamber of the first telescopic rod 4152, causing the first telescopic rod 4152 to extend. The two clamping plates 4151 rotate towards each other, clamping the stainless steel tube 1. When the mounting plate 412 slides in the opposite direction, the second telescopic rod 4153 remains in contact with the ramp 4154 under the elastic force of the first spring 4155, causing the first telescopic rod 4152 to slowly retract, and the clamping of the stainless steel tube 1 by the two clamping plates 4151 is released.

[0035] Reference Figure 2 The drive mechanism includes a motor 4161, which is fixedly mounted on the end of the base plate 411 away from the mounting plate 412. A first rotating wheel 4162 is coaxially fixedly mounted on the output end of the motor 4161. A second rotating wheel 4163 is rotatably mounted on the end of the base plate 411 away from the motor 4161. A cable 4164 is wound around the second rotating wheel 4163 and the first rotating wheel 4162. The two ends of the cable 4164 are connected. A movable block 4165 is fixedly mounted on the cable 4164 and is fixedly connected to the mounting plate 412.

[0036] In use, motor 4161 drives the first rotating wheel 4162 to rotate, the rotation of the first rotating wheel 4162 drives the cable 4164 to move, the movement of the cable 4164 drives the movable block 4165 to move, the movement of the movable block 4165 drives the mounting plate 412 to move, and the second rotating wheel 4163 guides the movement of the cable 4164.

[0037] Reference Figure 1 The lifting assembly 417 includes a third telescopic rod 4171. The fixed end of the third telescopic rod 4171 is fixedly installed on the side wall of the mounting plate 412 near the second telescopic rod 4153. The movable end of the second telescopic rod 4153 faces the slope 4154. The rodless cavity of the third telescopic rod 4171 communicates with the rod cavity of the second column 414. Both the cavity of the third telescopic rod 4171 and the cavity of the second column 414 are filled with hydraulic oil. The third telescopic rod 4171 is fitted with a second spring 4172. One end of the second spring 4172 is fixedly connected to the fixed end of the third telescopic rod 4171, and the other end of the second spring 4172 is fixedly connected to the movable end of the third telescopic rod 4171.

[0038] When the mounting plate 412 moves to the point where the movable end of the second telescopic rod 4153 no longer abuts against the ramp 4154, the movable end of the second telescopic rod 4153 abuts against the side wall of the mounting plate 412. At this time, the mounting plate 412 continues to slide, and the movable end of the second telescopic rod 4153 compresses the third telescopic rod 4171. The second spring 4172 is compressed accordingly, and the hydraulic oil in the rodless cavity of the third telescopic rod 4171 flows into the rod cavity of the second column 414, causing the second column 414 to retract and no longer abut against the stainless steel round tube 1.

[0039] Reference Figure 2 and Figure 3The first positioning mechanism includes an extension frame 421, which is fixedly installed on the base plate 411 away from the base plate 411. A receiving plate 422 is fixedly installed on the extension frame 421. The receiving plate 422 is a hollow plate with one open end, and the open end of the receiving plate 422 faces away from the base plate 411. The flange 2 can enter the receiving plate 422 when the mounting hole 21 is parallel to the straight end face of the stainless steel round tube 1. A first clamping groove is fixedly installed on the end of the receiving plate 422 near the mounting plate 412. A first clamping plate 423 is near the closed end of the receiving plate 422. The first clamping plate 423 is U-shaped, and the U-shaped opening of the first clamping plate 423 faces the mounting plate 412. A second clamping plate 424 is hinged to the outer wall of the receiving plate 422. The second clamping plate 424 is hinged to the first clamping groove. The clamping plate 423 forms a clamping cavity, which is connected to the interior of the receiving plate 422, allowing the flange 2 to enter the clamping cavity. A torsion spring 425 is sleeved on the hinge shaft between the second clamping plate 424 and the receiving plate 422. One end of the torsion spring 425 is fixedly connected to the second clamping plate 424, and the other end is fixedly connected to the receiving plate 422. The fixed end of the fourth telescopic rod 426 is fixedly installed on the extension frame 421. The movable end of the fourth telescopic rod 426 passes through and slides on the receiving plate 422. The extension direction of the fourth telescopic rod 426 is along the connection direction between the clamping cavity and the interior of the receiving plate 422. The rodless cavity of the fourth telescopic rod 426 is connected to the rodless cavity of the second telescopic rod 4153, and the rodless cavity of the fourth telescopic rod 426 is filled with hydraulic oil.

[0040] Before use, multiple flanges 2 are first inserted into the open end of the receiving plate 422, and the flanges 2 fall onto the bottom wall of the receiving plate 422 under their own weight. When the mounting plate 412 moves and the ramp 4154 presses against the second telescopic rod 4153, the hydraulic oil in the rodless cavity of the second telescopic rod 4153 enters the rodless cavity of the fourth telescopic rod 426, causing the movable end of the fourth telescopic rod 426 to extend and push the bottom flange 2 into the cavity formed by the first clamping plate 423 and the second clamping plate 424. At this time, the mounting hole 21 on the flange 2 is coaxial with the straight end of the stainless steel round tube 1. The mounting plate 412 continues to move, so that the straight end of the stainless steel round tube 1 passes through the mounting hole 21 of the flange 2. When the mounting plate 412 moves to the limit position, the distance between the straight end face of the stainless steel round tube 1 and the flange 2 is exactly the length required in the stainless steel round tube column processing technology, thus completing the positioning of the flange 2. When the mounting plate 412 moves in the reverse direction, the flange 2 is already relatively fixed to the stainless steel round tube 1 through spot welding. At this time, the flange 2 will move in the reverse direction along with the stainless steel round tube 1, causing the second clamping plate 424 to flip along the hinge axis, and the torsion spring 425 will deform accordingly. After the flange 2 is completely separated from the second clamping plate 424, the second clamping plate 424 will return to its original position under the elastic force of the torsion spring 425, making it easier to clamp the next flange 2.

[0041] Reference Figure 4 , Figure 5 and Figure 6 The second positioning mechanism includes a first placement plate 431, which is an arc-shaped plate with the same curvature as the meniscus 3. The first placement plate 431 is fixedly connected to the end of the mounting plate 412 away from the second column 414. A sliding groove 432 is provided on the end of the first placement plate 431 away from the mounting plate 412, allowing the meniscus 3 to slide within the sliding groove 432. A second through groove 433 and a third through groove 434 are provided through the first placement plate 431. The third through groove 434 and the second through groove 433 are on the same straight line and correspond one-to-one with the first through grooves 31 provided at both ends of the meniscus 3, and are coaxial. The cross-sectional areas of the second through groove 433 and the third through groove 434 are both larger than the cross-sectional area of ​​the first through groove 31. A fifth telescopic rod 435 is fixedly installed on the mounting plate 412. The movable end of the fifth telescopic rod 435 is coaxial with the second through groove 433. The rodless cavity of the fifth telescopic rod 435 is connected to the rodless cavity of the third telescopic rod 4171; the sixth telescopic rod 436 is fixedly installed on the mounting plate 412, the movable end of the sixth telescopic rod 436 is coaxial with the third through groove 434, the movable ends of the fifth telescopic rod 435 and the sixth telescopic rod 436 are both boss-shaped, and both can abut against the side wall of the first through groove 31 after passing through the first through groove 31, the rodless cavity of the sixth telescopic rod 436 is connected to the rodless cavity of the third telescopic rod 4171; the second placement plate 437 is fixedly installed on the end of the first mounting plate 412 away from the mounting plate 412, the second placement plate 437 is a hollow structure with openings at both ends, and the meniscus 3 can enter the slide groove 432 from the inside of the second placement plate 437; the seventh telescopic rod 438 is fixedly installed on the first placement plate 431, the movable end of the seventh telescopic rod 438 can abut against the meniscus 3, and the extension direction of the seventh telescopic rod 438 is along the length direction of the slide groove 432.

[0042] Before use, multiple menisci 3 are placed in the second placement plate 437. Under their own weight, the menisci 3 fall into the slide groove 432, and the bottommost menisci 3, near the seventh telescopic rod 438, abuts against the movable end of the seventh telescopic rod 438. When the mounting plate 412 moves and the ramp 4154 presses against the second telescopic rod 4153, the hydraulic oil in the rodless cavity of the second telescopic rod 4153 enters the rodless cavity of the seventh telescopic rod 438, causing the movable end of the seventh telescopic rod 438 to extend and push the bottommost menisci 3 into the slide groove 432 at the end away from the seventh telescopic rod 438, with the menisci 3 positioned below the elbow end of the stainless steel round tube 1. As the mounting plate 412 continues to move and compresses the movable end of the second telescopic rod 4153 against the movable end of the third telescopic rod 4171, the hydraulic oil in the rodless chamber of the third telescopic rod 4171 enters the rodless chamber of the fifth telescopic rod 435 and the rodless chamber of the sixth telescopic rod 436. This allows the movable ends of the fifth telescopic rod 435 and the sixth telescopic rod 436 to pass through the second through groove 433 and the third through groove 434, and simultaneously pass through the first through groove 31. After passing through a portion of the through groove, they abut against the side wall of the first through groove 31, thereby driving the meniscus 3 to move towards the elbow end of the stainless steel round tube 1 and abut against the arc groove 11 at the elbow end of the stainless steel round tube 1.

[0043] Welding: Spot weld the gaps between stainless steel round tube 1 and flange 2, and between stainless steel round tube 1 and meniscus 3 to complete the assembly of the stainless steel round tube column of the highway guardrail; Full welding: Separate the stainless steel round tube column of the highway guardrail from the auxiliary positioning device, and perform full welding on the gaps between stainless steel round tube 1 and flange 2, and between stainless steel round tube 1 and meniscus 3.

[0044] Post-processing: Polishing and sandblasting are performed on the outer surface of each welded stainless steel round tube post of the highway guardrail.

[0045] The implementation principle of the processing technology for stainless steel round tube posts for highway guardrails according to an embodiment of this application is as follows: Component preparation: Processing stainless steel round tube 1, flange 2, and meniscus 3; Positioning and assembly: Fixing and installing an auxiliary positioning device, which is equipped with an installation mechanism, a first positioning mechanism, and a second positioning mechanism. Connecting stainless steel round tube 1 to the installation mechanism, flange 2 to the first positioning mechanism, and meniscus 3 to the second positioning mechanism; Welding: Spot welding is performed on the gaps between stainless steel round tube 1 and flange 2, and between stainless steel round tube 1 and meniscus 3 using a welding robot to complete the assembly of the stainless steel round tube posts for highway guardrails; Separating the stainless steel round tube posts for highway guardrails from the auxiliary positioning device, and fully welding is performed on the gaps between stainless steel round tube 1 and flange 2, and between stainless steel round tube 1 and meniscus 3 using a welding robot; Post-processing: Polishing and sanding are performed on the outer surfaces of each welded stainless steel round tube post for highway guardrails.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A processing technology for stainless steel round tube posts for highway guardrails, characterized in that, Includes the following steps: components Preparation: Process stainless steel round tube (1), flange (2) and meniscus (3); Positioning and assembly: Fix the auxiliary positioning device, which is equipped with an installation mechanism, a first positioning mechanism and a second positioning mechanism. Connect the stainless steel round tube (1) to the installation mechanism, the flange (2) to the first positioning mechanism and the meniscus (3) to the second positioning mechanism; Welding: Use a welding robot to spot weld the gap between the stainless steel round tube (1) and the flange (2) and the gap between the stainless steel round tube (1) and the meniscus (3) to complete the assembly of the stainless steel round tube column of the highway guardrail; Separate the stainless steel round tube column of the highway guardrail from the auxiliary positioning device, and use a welding robot to fully weld the gap between the stainless steel round tube (1) and the flange (2) and the gap between the stainless steel round tube (1) and the meniscus (3); Post-processing: Polishing and sanding are performed on the outer surface of each welded stainless steel round tube column of the highway guardrail; the installation mechanism includes: a base plate (411); an installation plate (412), which is slidably installed on the base plate (411); the first positioning mechanism includes: a heightening frame (421), which is fixedly installed on the base plate (411); a receiving plate (422), which is a hollow plate with one end open, and the flange (2) can be opened on the flange. When the mounting hole is parallel to the straight end face of the stainless steel round tube (1), it enters the receiving plate (422). The receiving plate (422) is fixedly installed on the raising frame (421). The open end of the receiving plate (422) faces away from the bottom plate (411). The first clamping plate (423) is U-shaped and is fixedly installed on the end of the receiving plate (422) near the mounting plate (412). The first clamping plate (423) is close to the closed end of the receiving plate (422). The first clamping plate (423) has a U-shaped opening facing the mounting plate (412); the second clamping plate (424) is hinged to the outer wall of the receiving plate (422), and the second clamping plate (424) and the first clamping plate (423) form a clamping cavity, which communicates with the interior of the receiving plate (422), allowing the flange (2) to enter the clamping cavity; a torsion spring (425) is sleeved on the hinge axis between the second clamping plate (424) and the receiving plate (422). On the upper part, one end of the torsion spring (425) is fixedly connected to the second clamping plate (424), and the other end of the torsion spring (425) is fixedly connected to the receiving plate (422); the fourth telescopic rod (426) has its fixed end fixedly installed on the heightening frame (421), and its movable end passes through and slides on the receiving plate (422). The telescopic direction of the fourth telescopic rod (426) is along the connection direction between the clamping cavity and the inside of the receiving plate (422).

2. The processing technology for stainless steel round tube posts for highway guardrails according to claim 1, characterized in that: Processing stainless steel round tube (1): A laser cutting machine is used to open an arc groove (11) at one end of the stainless steel round tube (1), and then a bending machine is used to bend the end of the stainless steel round tube (1) with the arc groove (11); Processing flange (2): The flange (2) is rectangular in shape, and a laser cutting machine is used to open a set of opposite side walls of the flange (2) to open mounting holes (21); Processing meniscus (3): The steel strip is laser cut, and after cutting, it is stamped so that the steel strip after cutting is bent. The bending arc is the same as the arc groove (11), and three first through grooves (31) are punched at the same time. The three first through grooves (31) are evenly distributed in the length direction of the cut steel strip.

3. The processing technology for stainless steel round tube posts for highway guardrails according to claim 2, characterized in that, The installation mechanism further includes: a first column (413), which is fixedly installed on the end of the base plate (411) away from the mounting plate (412); a second column (414), which is a telescopic rod structure, with its fixed end fixedly installed on the end of the base plate (411) away from the first column (413), and the end of the second column (414) away from the mounting plate (412) being an upward-opening arc; and a clamping assembly (415). The clamping assembly (415) is connected to the end of the first column (413) away from the mounting plate (412) and can clamp the stainless steel round tube (1); the driving assembly (416) is connected to the mounting plate (412) and can drive the mounting plate (412) to slide; the lifting assembly (417) is connected to the second column (414) and is used to control the second column (414) to lift.

4. The processing technology for stainless steel round tube posts for highway guardrails according to claim 3, characterized in that, The clamping assembly (415) includes: two clamping plates (4151), one end of each clamping plate (4151) being hinged to the end of the first column (413) away from the mounting plate (412); the two clamping plates (4151) can clamp the stainless steel round tube (1) when closed; two first telescopic rods (4152), the fixed ends of each of the two first telescopic rods (4152) being hinged to the side wall of the first column (413) and the two first telescopic rods (4152) being arranged opposite to each other, the movable ends of the two first telescopic rods (4152) corresponding one-to-one with the two clamping plates (4151) and being hinged; and a second telescopic rod (4153), the fixed end of the second telescopic rod (4153) being fixedly installed on the base plate (411), the second telescopic rod (4153) being... The movable end of the second telescopic rod (4153) faces the mounting plate (412), and the rodless cavity of the second telescopic rod (4153) is connected to the rodless cavities of the two first telescopic rods (4152); the ramp (4154) is opened on the mounting plate (412) near the end of the second telescopic rod (4153), and the movable end of the second telescopic rod (4153) can abut against the ramp (4154); the first spring (4155) has one end fixedly connected to the fixed end of the second telescopic rod (4153), and the other end of the first spring (4155) is fixedly connected to the movable end of the second telescopic rod (4153), and the compression direction of the first spring (4155) is along the extension direction of the second telescopic rod (4153).

5. The processing technology for stainless steel round tube posts for highway guardrails according to claim 3, characterized in that, The drive assembly (416) includes: a motor (4161) fixedly mounted on the base plate (411); a first rotating wheel (4162) rotatably mounted on the base plate (411); a second rotating wheel (4163) coaxially fixedly connected to the output end of the motor (4161); a cable (4164) with its two ends connected and wound around the first rotating wheel (4162) and the second rotating wheel (4163); and a movable block (4165) fixedly connected to the cable (4164) and fixedly connected to the mounting plate (412).

6. The processing technology for stainless steel round tube posts for highway guardrails according to claim 4, characterized in that, The lifting assembly (417) includes: a third telescopic rod (4171), the fixed end of which is fixedly installed on the side wall of the mounting plate (412) near the second telescopic rod (4153), the movable end of which faces the ramp (4154), and the rodless cavity of which is connected to the rod cavity of the second column (414); and a second spring (4172), one end of which is fixedly connected to the fixed end of the third telescopic rod (4171), and the other end of which is fixedly connected to the movable end of the third telescopic rod (4171), the compression direction of which is along the extension direction of the third telescopic rod (4171).

7. The processing technology for stainless steel round tube posts for highway guardrails according to claim 6, characterized in that, The rodless cavity of the fourth telescopic rod (426) is connected to the rodless cavity of the second telescopic rod (4153).

8. The processing technology for stainless steel round tube posts for highway guardrails according to claim 6, characterized in that, The second positioning mechanism includes: a first placement plate (431), which is an arc-shaped plate with the same curvature as the meniscus (3), and the first placement plate (431) is fixedly connected to the end of the mounting plate (412) away from the second column (414); a sliding groove (432), which is opened on the end of the first placement plate (431) away from the mounting plate (412), and the meniscus (3) can slide in the sliding groove (432); a second through groove (433), which is opened through the first placement plate (431); and a third through groove (434), which is opened through the first placement plate (431). A third through slot (434) is formed through the first placement plate (431). The third through slot (434) and the second through slot (433) are on the same straight line and correspond one-to-one with the first through slots (31) formed at both ends of the meniscus (3) and are coaxial. The cross-sectional area of ​​the second through slot (433) and the cross-sectional area of ​​the third through slot (434) are both larger than the cross-sectional area of ​​the first through slot (31). A fifth telescopic rod (435) is formed, with its fixed end fixedly installed on the mounting plate (412). The movable end of the fifth telescopic rod (435) is coaxial with the second through slot (433). The rodless cavity is connected to the rodless cavity of the third telescopic rod (4171); the sixth telescopic rod (436), the fixed end of the sixth telescopic rod (436) is fixedly installed on the mounting plate (412), the movable end of the sixth telescopic rod (436) is coaxial with the third through groove (434), the movable ends of the fifth telescopic rod (435) and the movable ends of the sixth telescopic rod (436) are both boss-shaped, and both can abut against the side wall of the first through groove (31) after passing through the first through groove (31), the rodless cavity of the sixth telescopic rod (436) is connected to the rodless cavity of the third telescopic rod (4171); the second placement plate (437) is open at both ends The hollow structure of the opening, the second placement plate (437) is fixedly installed on the end of the first placement plate (431) away from the mounting plate (412), the meniscus (3) can enter the groove (432) from the inside of the second placement plate (437); the seventh telescopic rod (438), the fixed end of the seventh telescopic rod (438) is fixedly installed on the first placement plate (431), the movable end of the seventh telescopic rod (438) can abut against the meniscus (3), the telescopic direction of the seventh telescopic rod (438) is opposite to the length of the groove (432), the rodless cavity of the seventh telescopic rod (438) is connected to the rodless cavity of the second telescopic rod (4153).

9. The processing technology for stainless steel round tube posts for highway guardrails according to claim 3, characterized in that: A baffle (5) is fixedly installed on the end of the second column (414) away from the first column (413), and the baffle (5) is higher than the bottom wall of the arc end of the second column (414).

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