Sandblasting and rust removal equipment for irregular steel pipe fittings

Abstract

The utility model discloses a sand blasting rust cleaning equipment for irregular steel pipe fittings relates to steel pipe fitting surface treatment technical field, wherein, the sand blasting rust cleaning equipment for irregular steel pipe fittings includes outer guide rail, bearing structure, portal frame, abutting mechanism and sand blasting rust cleaning system, and the outer guide rail extends along the horizontal direction, and the outer guide rail is provided with push -out position and push -in position, bearing structure is set up in the one side of outer guide rail, the portal frame is slidably installed in the outer guide rail along the horizontal direction, and the abutting mechanism is installed in the portal frame corresponding the position of bearing structure, and the abutting mechanism can switch between vertical state or horizontal state, is used for making the portal frame can drive bearing structure and irregular steel pipe fittings to move between push -out position or push -in position through the abutting mechanism, and the sand blasting rust cleaning system is set up in the outside of outer guide rail, the utility model has simplified the mechanical structure and control system of equipment, has reduced manufacturing cost and failure rate, and the maintenance difficulty and operating cost of equipment also reduce accordingly.

Description

Technical Field

[0001] This utility model relates to the field of surface treatment technology for steel pipe fittings, and in particular to a sandblasting and rust removal device for irregular steel pipe fittings. Background Technology

[0002] With the rapid development of industrial manufacturing, the surface treatment quality requirements for steel pipe fittings are constantly increasing. Sandblasting, as an efficient surface treatment method, is widely used in the processing of steel pipe fittings.

[0003] Currently, a horizontal displacement drive device is generally used to move the pipe support platform so that the workpiece can be moved to the processing room. Then, another horizontal displacement drive device is used to control the position adjustment of the sandblasting and rust removal equipment to ensure that the sandblasting device can cover all surfaces of the workpiece.

[0004] However, the configuration of dual horizontal displacement drive systems greatly increases the manufacturing cost of sandblasting and rust removal equipment. Furthermore, the coordinated control of the two horizontal displacement drive systems is quite complex, which also increases the failure rate of the equipment and raises the maintenance difficulty and operating cost. Utility Model Content

[0005] The main purpose of this invention is to propose a sandblasting and rust removal device for irregular steel pipe fittings, aiming to reduce the manufacturing cost, maintenance difficulty and operating cost of sandblasting and rust removal equipment.

[0006] To achieve the above objectives, the present invention proposes a sandblasting and rust removal device for irregular steel pipe fittings, comprising:

[0007] An outer guide rail extends horizontally, and both ends of the outer guide rail along its extension direction are respectively provided with an extension position and a push-in position;

[0008] A load-bearing structure is disposed on one side of the outer guide rail, and the load-bearing structure is used to support the irregular steel pipe fitting;

[0009] A gantry frame, which is slidably mounted on the outer guide rail in a horizontal direction;

[0010] A clamping mechanism is installed on the gantry frame at a position corresponding to the bearing structure. The clamping mechanism can switch between a vertical or horizontal state, correspondingly disengaging from or clamping to one side of the bearing structure, and is used to enable the gantry frame to drive the bearing structure and the irregular steel pipe to move between the push-out position and the push-in position through the clamping mechanism.

[0011] A sandblasting and rust removal system is provided, which is located on the outside of the outer guide rail. The sandblasting and rust removal end of the sandblasting and rust removal system is installed on the gantry frame and faces the irregular steel pipe.

[0012] In one embodiment, the gantry includes a frame, a base, and a horizontal displacement drive. The base is slidably mounted on the outer guide rail in a horizontal direction. The frame is mounted on the base. An installation space is provided inside the base. The horizontal displacement drive is housed in the installation space and connected to the inner top wall of the base. The output end of the horizontal displacement drive abuts against the outer guide rail and is used to drive the base to move the frame in a horizontal direction.

[0013] In one embodiment, the clamping mechanism includes a mounting base, a rotary drive, a rotating shaft, and a clamping plate. The rotary drive passes through the mounting base and is mounted on the side wall of the base. The rotating shaft extends horizontally, and the clamping plate extends vertically. The clamping plate is connected to one end of the rotating shaft at a position corresponding to the bearing structure. The other end of the rotating shaft is connected to the output end of the rotary drive. The rotary drive is used to drive the rotating shaft to switch the clamping plate between the vertical and horizontal states, and to enable the gantry frame to move the bearing structure and the irregular steel pipe between the ejected position and the pushed-in position via the clamping plate.

[0014] In one embodiment, the abutment plate is covered with a rubber sleeve.

[0015] In one embodiment, the frame includes a crossbeam and two vertical rods connected by the crossbeam. There are two outer guide rails. The two vertical rods are slidably connected to the two outer guide rails by two bases. The sandblasting and rust removal end of the sandblasting and rust removal system is installed on the crossbeam and faces the irregular steel pipe.

[0016] In one embodiment, the sandblasting and rust removal system includes a screw air compressor, an air tank, a sand tank, a nozzle, and a six-axis robotic arm. The six-axis robotic arm is mounted on the crossbeam, and the nozzle is mounted on the six-axis robotic arm, forming the sandblasting and rust removal end. The screw air compressor, the air tank, and the sand tank are disposed on the outside of the outer guide rail, and the screw air compressor, the air tank, the sand tank, and the nozzle are connected in sequence.

[0017] In one embodiment, the bearing structure includes an inner guide rail and a bearing platform. The inner guide rail extends horizontally and is spaced apart from the outer guide rail. The bearing platform is slidably mounted on the inner guide rail in a horizontal direction and is used to support the irregular steel pipe fitting.

[0018] In one embodiment, friction blocks for abutting against the clamping mechanism are provided on both sides of the bearing platform that are arranged opposite each other along the extension direction of the outer guide rail.

[0019] In one embodiment, the length of the inner guide rail is greater than the length of the outer guide rail, one end of the inner guide rail is aligned with one end of the outer guide rail, and the other end of the inner guide rail extends beyond the other end of the outer guide rail.

[0020] In one embodiment, the sandblasting and rust removal equipment for irregular steel pipe fittings further includes a sandblasting chamber, which is installed above the outer guide rail, the load-bearing structure, and the gantry frame.

[0021] This invention achieves a single horizontal displacement drive system simultaneously performing workpiece pushing and sandblasting positioning functions through a gantry frame, a clamping mechanism, and a load-bearing structure. The clamping mechanism's state switching allows the gantry frame to flexibly switch between different working modes, specifically between pushing irregular steel pipes and driving the sandblasting system to sandblast and rust remove them, avoiding the mechanical redundancy of traditional dual-drive systems. This simplifies the equipment's mechanical structure and control system, reducing manufacturing costs and failure rates. Simultaneously, the reduced number of moving parts lowers maintenance difficulty and operating costs. In practical applications, it also improves equipment reliability and efficiency, providing a more efficient and economical solution for sandblasting and rust removal of irregular steel pipes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an embodiment of the sandblasting and rust removal equipment for irregular steel pipe fittings provided by this utility model;

[0024] Figure 2 This is a schematic diagram of the load-bearing structure and gantry frame involved in this utility model;

[0025] Figure 3 This is a structural schematic diagram of the gantry frame and sandblasting rust removal system involved in this utility model;

[0026] Figure 4 This is a schematic diagram of the clamping mechanism involved in this utility model;

[0027] Figure 5 This is a schematic diagram of the installation structure of the horizontal displacement driving component involved in this utility model.

[0028] Explanation of icon numbers:

[0029] 10. Irregular steel pipe fittings;

[0030] 100. Outer guide rail; 200. Load-bearing structure; 300. Gantry frame; 400. Clamping mechanism; 500. Sandblasting and rust removal system; 600. Sandblasting room; 101. Push-out position; 102. Push-in position; 210. Inner guide rail; 220. Load-bearing platform; 310. Frame; 320. Base; 330. Horizontal displacement drive component; 301. Installation space; 410. Mounting seat; 420. Rotary drive component; 430. Rotating shaft; 440. Clamping plate; 510. Screw air compressor; 520. Air tank; 530. Sand tank; 540. Nozzle; 550. Six-axis robotic arm; 311. Crossbeam; 312. Vertical bar.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] In traditional steel pipe sandblasting and rust removal processes, dual independent drive systems are commonly used to control the movement of the workpiece support platform and the positioning of the sandblasting device, respectively. One drive system moves the support platform horizontally along guide rails to allow the workpiece to enter and exit the processing area, while the other drive system controls the movement trajectory of the sandblasting device in three-dimensional space to cover the workpiece surface. The two systems require complex collaborative control algorithms to achieve motion timing matching, and frequent switching of drive modes is necessary during gantry movement to avoid mechanical interference. This architecture leads to increased redundancy in the equipment's mechanical structure, an exponential increase in the complexity of the electrical control system, and a significantly increased probability of mechanical wear on moving parts.

[0036] For example, in an automated sandblasting production line set up in a large industrial workshop, the support platform needs to move back and forth along an inner guide rail exceeding 15 meters in length, while the sandblasting device needs to achieve lateral displacement on an outer guide rail via a gantry frame. When the support platform carries the workpiece into the processing area, the gantry frame must remain stationary to avoid collision with the support platform; after the workpiece is positioned, the gantry frame needs to initiate lateral movement to adjust the sandblasting angle. During this process, the control signals of the two drive systems need to be synchronized at the millisecond level via an industrial bus; any timing deviation may lead to sandblasting trajectory deviation or mechanical structure jamming. Actual operation data shows that the mean time between failures (MTBF) of equipment under the dual-system architecture is reduced by approximately 40% compared to the single-system architecture, while maintenance time is nearly doubled.

[0037] To solve this technical problem, this utility model proposes a sandblasting and rust removal device for irregular steel pipe fittings.

[0038] Please see Figures 1 to 3In one embodiment of this utility model, the sandblasting and rust removal equipment for irregular steel pipe fittings includes an outer guide rail 100, a bearing structure 200, a gantry frame 300, a clamping mechanism 400, and a sandblasting and rust removal system 500. The outer guide rail 100 extends horizontally, and its two ends along its extension direction are respectively provided with an extension position 101 and a push-in position 102. The bearing structure 200 is disposed on one side of the outer guide rail 100 and is used to support the irregular steel pipe fitting 10. The gantry frame 300 is slidably mounted on the outer guide rail 100 in the horizontal direction. The clamping mechanism 400... The mechanism 400 is installed on the gantry 300 at the position corresponding to the bearing structure 200. The clamping mechanism 400 can switch between vertical and horizontal states, correspondingly disengaging from or clamping to one side of the bearing structure 200, and is used to enable the gantry 300 to move the bearing structure 200 and the irregular steel pipe 10 between the push-out position 101 and the push-in position 102 through the clamping mechanism 400. The sandblasting and rust removal system 500 is set on the outside of the outer guide rail 100. The sandblasting and rust removal end of the sandblasting and rust removal system 500 is installed on the gantry 300 and faces the irregular steel pipe 10.

[0039] The outer guide rail 100 refers to a horizontally extending track structure, which can be made by processing metal profiles into a straight track. It provides a horizontal movement path for the gantry 300 and restricts its direction of movement. The load-bearing structure 200 refers to a support component for placing irregular steel pipe fittings 10. It can be made by using a guide rail structure with a sliding platform. It is used to fix the workpiece and allow it to move inside and outside the processing area. The gantry 300 refers to a frame structure that can slide along the outer guide rail 100. It can be made by using a portal frame composed of a crossbeam 311 and a vertical rod 312. It is used to install the sandblasting and rust removal end and drive it to move along the workpiece surface. The clamping mechanism 400 refers to a mechanical component that can switch between vertical and horizontal positions. It can be made by using a rotary drive component 420 in conjunction with a rotating shaft 430 and a clamping plate 440. By switching states, it can achieve contact or separation with the load-bearing structure 200, thereby using a single horizontal displacement drive system to simultaneously control workpiece movement and sandblasting processing. The sandblasting rust removal system 500 refers to a surface treatment device used to remove rust by blasting abrasive. Specifically, it can be implemented by using an air compressor, a sand tank 530, and a robotic arm with an integrated nozzle 540. The robotic arm adjusts the sandblasting angle to cover the surface of irregular pipe fittings.

[0040] Specifically, the working process and principle of this application are as follows: the outer guide rail 100 extends horizontally, with an extension position 101 and an insertion position 102 respectively at both ends. A load-bearing structure 200 is disposed on one side of the outer guide rail 100 to support the irregular steel pipe fitting 10. The gantry frame 300 is slidably mounted on the outer guide rail 100 horizontally. The clamping mechanism 400 is installed on the gantry frame 300 at the position corresponding to the load-bearing structure 200, and can switch between vertical and horizontal states, disengaging from or clamping to one side of the load-bearing structure 200. The sandblasting and rust removal system 500 is disposed outside the outer guide rail 100, with the sandblasting and rust removal end mounted on the gantry frame 300 and facing the irregular steel pipe fitting 10.

[0041] During operation, the irregular steel pipe fitting 10 is first installed on the supporting structure 200, which is then in the pushed-in position 102. The clamping mechanism 400 switches from a vertical to a horizontal position, abutting against one side of the supporting structure 200. The gantry 300 moves towards the pushed-out position 101 under the limiting action of the outer guide rail 100, moving the supporting structure 200 and the irregular steel pipe fitting 10 to the pushed-out position 101. Upon reaching the pushed-out position 101, the clamping mechanism 400 switches back to a vertical position. At this time, the gantry 300 can move horizontally along the outer guide rail 100, driving the sandblasting and rust removal end of the sandblasting and rust removal system 500 to sandblast and remove rust from the irregular steel pipe fitting 10. While the gantry 300 is processing the irregular steel pipe fitting 10 with the sandblasting and rust removal end, the clamping mechanism 400 does not interfere with the movement of the gantry 300.

[0042] After processing, the gantry 300 moves to the push-out position 101. The clamping mechanism 400 switches from a vertical to a horizontal position and abuts against the other side of the load-bearing structure 200. Under the limiting action of the outer guide rail 100, the gantry 300 moves towards the push-in position 102, driving the load-bearing structure 200 and the irregular steel pipe fitting 10 to move to the push-in position 102, pushing the load-bearing structure 200 and the irregular steel pipe fitting 10 out of the processing area.

[0043] The clamping mechanism 400's state switching enables the gantry 300 to switch between two working modes: sandblasting and workpiece pushing. When horizontally positioned, the clamping mechanism 400 forms a rigid connection with the supporting structure 200; when vertically positioned, the connection is released. This allows a single horizontal displacement drive system to simultaneously perform both workpiece pushing and sandblasting positioning functions, avoiding the complexity and coordination control challenges of traditional dual-drive systems.

[0044] As a preferred embodiment, the solution of this application is specifically implemented as follows:

[0045] The outer guide rail 100 is made of high-strength alloy steel and extends horizontally. An ejection position 101 and an insertion position 102 are respectively provided at both ends of the outer guide rail 100 to define the start and end positions of workpiece processing. The load-bearing structure 200 is a steel frame structure located on one side of the outer guide rail 100 to stably support the irregular steel pipe fitting 10. The gantry frame 300 consists of a crossbeam 311 and two columns, forming a portal frame structure, and is slidably connected to the outer guide rail 100 via a slider.

[0046] The clamping mechanism 400 includes a mounting base 410, a rotary drive 420, a rotating shaft 430, and a clamping plate 440. The mounting base 410 is fixed to the bottom of the gantry 300, and the rotary drive 420 is installed inside the mounting base 410. The rotating shaft 430 extends horizontally, with one end connected to the output shaft of the rotary drive 420 and the other end connected to the vertically extending clamping plate 440. The clamping plate 440 is covered with a rubber layer to increase the friction with the load-bearing structure 200.

[0047] The sandblasting and rust removal system 500 mainly consists of a screw air compressor 510, an air tank 520, a sand tank 530, a nozzle 540, and a six-axis robotic arm 550. The six-axis robotic arm 550 is mounted on the crossbeam 311 of the gantry 300, and the nozzle 540 is mounted at the end of the robotic arm, forming the sandblasting and rust removal end. The screw air compressor 510, air tank 520, and sand tank 530 are located outside the outer guide rail 100 and are sequentially connected to the nozzle 540 via pipelines.

[0048] During operation, the irregular steel pipe fitting 10 is first placed on the supporting structure 200. The rotation drive 420 drives the rotating shaft 430, causing the abutment plate 440 to rotate from a vertical position to a horizontal position, abutting against the side of the supporting structure 200. The gantry 300 moves along the outer guide rail 100 to the push-out position 101, pushing the supporting structure 200 and the workpiece to the processing area via the abutment plate 440.

[0049] Upon reaching the ejection position 101, the rotary drive 420 again drives the abutment plate 440 to rotate back to a vertical position. At this time, the gantry 300 can move freely along the outer guide rail 100, and the six-axis robotic arm 550 controls the nozzle 540 to aim at the workpiece surface for sandblasting and rust removal. During the operation, the screw air compressor 510 continuously supplies air to the air tank 520, and the high-pressure air-sand mixture after mixing with the sand tank 530 is sprayed onto the workpiece surface through the nozzle 540.

[0050] After processing is completed, the gantry 300 moves to the push-out position 101, and the clamping plate 440 rotates again to a horizontal position to abut against the other side of the supporting structure 200. The gantry 300 moves along the outer guide rail 100 to the push-in position 102, pushing the supporting structure 200 and the workpiece back to the initial position, completing a complete processing cycle.

[0051] The technical solution provided by this utility model achieves both workpiece pushing and sandblasting positioning functions in a single horizontal displacement drive system through the gantry 300, the clamping mechanism 400, and the load-bearing structure 200. The state switching of the clamping mechanism 400 allows the gantry 300 to flexibly switch between different working modes, specifically between pushing irregular steel pipe fittings 10 and driving the sandblasting and rust removal system 500 to sandblast and rust remove irregular steel pipe fittings 10, avoiding the mechanical redundancy of traditional dual-drive systems. This simplifies the mechanical structure and control system of the equipment, reducing manufacturing costs and failure rates. Simultaneously, the reduced number of moving parts also lowers the maintenance difficulty and operating costs. In practical applications, it also improves the reliability and efficiency of the equipment, providing a more efficient and economical implementation scheme for sandblasting and rust removal of irregular steel pipe fittings 10.

[0052] Please continue reading. Figure 2 and Figure 3 And see Figure 5 In an embodiment of this utility model, the gantry 300 includes a frame 310, a base 320, and a horizontal displacement drive 330. The base 320 is slidably mounted on the outer guide rail 100 in the horizontal direction. The frame 310 is mounted on the base 320. An installation space 301 is provided inside the base 320. The horizontal displacement drive 330 is housed in the installation space 301 and connected to the inner top wall of the base 320. The output end of the horizontal displacement drive 330 abuts against the outer guide rail 100 and is used to drive the base 320 to drive the frame 310 to slide in the horizontal direction.

[0053] The sliding connection between the base 320 and the outer guide rail 100 is achieved through the cooperation of the guide rail and the slide groove. The base 320 forms a closed installation space 301. The horizontal displacement drive component 330 is a linear motor or hydraulic cylinder, with its top fixed to the inner top wall of the base 320 and its output end extending downwards to contact the upper surface of the outer guide rail 100. A wear-resistant layer is provided on the contact surface between the output end of the horizontal displacement drive component 330 and the outer guide rail 100. Heat dissipation holes are provided on the side wall of the base 320 to balance the internal temperature.

[0054] Specifically, the horizontal displacement drive component 330 is housed inside the base 320. Its output end directly presses against the surface of the outer guide rail 100, generating friction and driving the base 320 to slide along the extension direction of the outer guide rail 100. The internal mounting space 301 of the base 320 isolates the drive component from the external environment, preventing sand particles from entering the drive structure during sandblasting. The frame 310 is rigidly connected to the base 320. When the base 320 slides, it drives the frame 310 to move synchronously, allowing the position adjustment of the sandblasting and rust removal end to be completed through a single drive structure. The pressure at the output end of the horizontal displacement drive component 330 can be dynamically adjusted according to the load on the base 320, ensuring that the driving force and frictional resistance are matched during sliding. The heat dissipation holes on the side wall of the base 320 are connected to the mounting space 301, reducing the operating temperature of the drive component through air convection.

[0055] As a preferred embodiment, the solution of this application is specifically implemented as follows:

[0056] The base 320 is slidably mounted on the outer guide rail 100 in a horizontal direction. The frame 310 is mounted on the base 320. An installation space 301 is provided inside the base 320. A horizontal displacement drive 330 is housed in the installation space 301 and connected to the inner top wall of the base 320. The output end of the horizontal displacement drive 330 abuts against the outer guide rail 100 and is used to drive the base 320 to slide the frame 310 in a horizontal direction.

[0057] The base 320 can be a rectangular box structure with a groove at its bottom that mates with the outer guide rail 100. The frame 310 can be a "gate" shaped structure, fixed to the top of the base 320 with bolts. The installation space 301 is located in the center of the interior of the base 320. The horizontal displacement drive component 330 can be a hydraulic cylinder, with its cylinder body fixed to the inner top wall of the base 320 and its piston rod passing through the bottom of the base 320 and abutting against the outer guide rail 100. When the hydraulic cylinder extends or retracts, it can push the entire gantry frame 300 to slide along the outer guide rail 100.

[0058] The horizontal displacement drive component 330 is housed inside the base 320, which protects the drive unit and simplifies the overall structure. Simultaneously, the drive component acts directly on the outer guide rail 100, resulting in high transmission efficiency and good positioning accuracy, which helps improve the processing quality and efficiency of sandblasting and rust removal.

[0059] Please continue reading. Figure 3 And see Figure 4In an embodiment of this utility model, the clamping mechanism 400 includes a mounting base 410, a rotary drive 420, a rotating shaft 430, and a clamping plate 440. The rotary drive 420 passes through the mounting base 410 and is mounted on the mounting base 410. The rotating shaft 430 extends horizontally, and the clamping plate 440 extends vertically. The clamping plate 440 is connected to one end of the rotating shaft 430 at the position corresponding to the bearing structure 200. The other end of the rotating shaft 430 is connected to the output end of the rotary drive 420. The rotary drive 420 is used to drive the rotating shaft 430 to switch the clamping plate 440 between a vertical or horizontal state, and to enable the gantry 300 to move the bearing structure 200 and the irregular steel pipe 10 between the push-out position 101 and the push-in position 102 via the clamping plate 440.

[0060] The rotary drive component 420 is fixed to the side wall of the base 320 via the mounting base 410, ensuring a stable power transmission path. The rotating shaft 430 extends horizontally and is coaxially connected to the output end of the rotary drive component 420, allowing the rotational motion to be directly converted into the attitude switching of the abutment plate 440. The vertically extending layout of the abutment plate 440 allows it to cover the contact area of ​​the side of the supporting structure 200 in the horizontal position, while completely disengaging from the contact area in the vertical position. The rigid connection between the rotating shaft 430 and the abutment plate 440 ensures that the torque output by the rotary drive component 420 is effectively transmitted to the abutment plate 440. For example, the diameter of the rotating shaft 430 can be set to 20-50 mm to balance structural strength and rotational inertia.

[0061] Specifically, when the supporting structure 200 is in the pushed-in position 102, the rotary drive 420 drives the rotating shaft 430 to rotate 90 degrees, causing the clamping plate 440 to switch from a vertical to a horizontal position. At this time, the clamping plate 440 contacts the side of the supporting structure 200. When the gantry 300 moves to the pushed-out position 101 of the outer guide rail 100 via the horizontal displacement drive 330, the clamping plate 440 pushes the supporting structure 200 to move synchronously. When the supporting structure 200 reaches the pushed-out position 101, the rotary drive 420 drives the rotating shaft 430 to rotate 90 degrees in the opposite direction, and the clamping plate 440 returns to the vertical position, disengaging from the side of the supporting structure 200. At this time, the gantry 300 can move freely to perform sandblasting operations. In this process, the state switching of the clamping mechanism 400 and the movement of the gantry 300 share the same horizontal displacement drive 330, eliminating the need for an additional independent drive unit, thus reducing equipment complexity and manufacturing costs.

[0062] In use, when it is necessary to push out the load-bearing structure 200 and the irregular steel pipe fitting 10, the rotary drive 420 drives the rotating shaft 430 to rotate 90 degrees, causing the abutment plate 440 to change from a vertical state to a horizontal state, abutting against the side of the load-bearing structure 200. The gantry 300 moves on the outer guide rail 100, pushing the load-bearing structure 200 and the pipe fitting to the push-out position 101 via the abutment plate 440. After sandblasting and rust removal, the rotary drive 420 drives the rotating shaft 430 to rotate 90 degrees again, causing the abutment plate 440 to return to a vertical state, and the gantry 300 drives the abutment plate 440 back to its original position. Then the above process is repeated to push the load-bearing structure 200 and the pipe fitting back to the push-in position 102.

[0063] Through the above technical solution, this application simplifies the equipment structure and reduces manufacturing costs and failure rates. The clamping plate 440 allows it to flexibly switch between vertical and horizontal states, without interfering with the movement of the gantry 300, while effectively pushing the load-bearing structure 200. This improves the equipment's working efficiency and reliability, and reduces maintenance difficulty.

[0064] In an embodiment of this utility model, the abutment plate 440 is covered with a rubber sleeve.

[0065] The rubber sleeve is fixed to the outer surface of the abutment plate 440 by interference fit or adhesive, completely covering the area where the abutment plate 440 contacts the load-bearing structure 200. The rubber sleeve is made of wear-resistant rubber material with a thickness ranging from 3 to 5 mm, and the surface can be corrugated or flat to adapt to different contact requirements. A buffer layer is formed between the rubber sleeve and the abutment plate 440, which absorbs impact energy through elastic deformation when the abutment plate 440 switches states.

[0066] Specifically, when the clamping plate 440 switches from a vertical to a horizontal position and abuts against the bearing structure 200, the rubber sleeve first contacts the friction block of the bearing structure 200. Through elastic deformation of the material, it reduces the impact force at the moment of contact, preventing direct collision between metal parts that could cause noise or wear. During the movement of the bearing structure 200 by the gantry 300, the rubber sleeve continuously provides frictional resistance, preventing slippage between the clamping plate 440 and the bearing structure 200. When the clamping plate 440 returns to its vertical position, the elastic recovery characteristics of the rubber sleeve prevent permanent deformation caused by long-term pressure. This application increases the friction between the clamping plate 440 and the bearing structure 200, reduces wear caused by direct metal contact, and extends the service life of the clamping plate 440. Simultaneously, the rubber sleeve also acts as a buffer, reducing the impact force during clamping and protecting the bearing structure 200 and the irregular steel pipe fitting 10. Furthermore, the rubber sleeve has a certain degree of elasticity, allowing it to adapt to bearing structures 200 of different sizes, improving the reliability and stability of clamping.

[0067] Please continue reading. Figure 2 and Figure 3 In an embodiment of this utility model, the frame 310 includes a crossbeam 311 and two vertical rods 312. The two vertical rods 312 are connected by the crossbeam 311. There are two outer guide rails 100. The two vertical rods 312 are slidably connected to the two outer guide rails 100 through two bases 320 respectively. The sandblasting and rust removal end of the sandblasting and rust removal system 500 is installed on the crossbeam 311 and is set towards the irregular steel pipe 10.

[0068] The crossbeam 311 and two vertical rods 312 form a rigid frame structure. Two outer guide rails 100 are arranged in parallel, and two bases 320 form sliding pairs with the outer guide rails 100. The sandblasting and rust removal end is fixed in the middle area of ​​the crossbeam 311. The sliding connection between the two vertical rods 312 and the outer guide rails 100 forms symmetrical support. The crossbeam 311, as the main body supporting the sandblasting and rust removal end, has a span determined by the distance between the two vertical rods 312. The installation position of the sandblasting and rust removal end is perpendicular to the axis of the crossbeam 311 to ensure that the spraying direction is aligned with the surface of the pipe.

[0069] Specifically, two outer guide rails 100 are laid parallel to each other on both sides of the working area, and bases 320 are respectively mounted on the bottom of the two vertical rods 312 and embedded in the corresponding grooves of the outer guide rails 100. A crossbeam 311 is welded or bolted to the top of the two vertical rods 312, forming a gantry frame. The sandblasting end is fixed to the front of the crossbeam 311 by a mounting bracket, and its spraying angle can be adjusted along the length of the crossbeam 311. When the horizontal displacement drive 330 synchronously drives the two bases 320 to move along the outer guide rails 100, the crossbeam 311 drives the sandblasting end to maintain a straight trajectory. The symmetrical support of the two outer guide rails 100 eliminates the risk of lateral deviation in the monorail system. The installation position of the sandblasting end on the crossbeam 311 allows it to cover the entire axial length of the pipe for processing.

[0070] Please continue reading. Figure 2 and Figure 3 In an embodiment of this utility model, the sandblasting and rust removal system 500 includes a screw air compressor 510, an air tank 520, a sand tank 530, a nozzle 540, and a six-axis robotic arm 550. The six-axis robotic arm 550 is mounted on a crossbeam 311, and the nozzle 540 is mounted on the six-axis robotic arm 550, forming a sandblasting and rust removal end. The screw air compressor 510, the air tank 520, and the sand tank 530 are located on the outside of the outer guide rail 100, and the screw air compressor 510, the air tank 520, the sand tank 530, and the nozzle 540 are connected in sequence.

[0071] The six-axis robotic arm 550 is existing technology and has six degrees of freedom, enabling multi-angle pose adjustment in space. The nozzle 540 is fixed via a flange at the end of the robotic arm. The sand tank 530 is connected to the nozzle 540 via a high-pressure hose. The air tank 520 and the sand tank 530 are connected via a metal pipe. The output of the screw air compressor 510 is connected to the inlet of the air tank 520 via a pressure reducing valve. The base 320 of the six-axis robotic arm 550 is bolted to the middle of the crossbeam 311. Each joint of the robotic arm is driven by a built-in servo motor. The axis of the nozzle 540 coincides with the axis of the end of the robotic arm. A pneumatic butterfly valve is installed at the bottom of the sand tank 530 to control the abrasive flow rate.

[0072] Specifically, during the processing, the six-axis robotic arm 550 drives the nozzle 540 to move along the surface of the irregular steel pipe 10 according to a preset trajectory. Compressed air generated by the screw air compressor 510 is stabilized by the air tank 520 and then enters the sand tank 530. The abrasive inside the tank is drawn into the mixing chamber through the Venturi effect, forming a high-speed air-sand flow that is sprayed onto the workpiece surface through the nozzle 540. The coordinated movement of the joints of the robotic arm ensures that the nozzle 540 always maintains a spray angle perpendicular to the normal of the processing point. By adjusting the joint angles of the robotic arm, the spatial position of the nozzle 540 can be changed to achieve full coverage sandblasting of complex curved surfaces. The sand tank 530 is connected to an external feeding system to achieve continuous sand feeding. The air tank 520 buffers air pressure fluctuations to ensure stable spray pressure. The external layout of the air compressor and sand tank 530 reduces the motion load of the gantry 300. This integrated structure achieves multi-dimensional precise positioning through a single robotic arm, replacing the traditional multi-drive system configuration, simplifying the equipment structure while ensuring processing quality.

[0073] The screw air compressor 510 is connected to the air receiver 520 via a pipeline. The air receiver 520 is connected to the sand tank 530 via a pipeline. The sand tank 530 is connected to the nozzle 540 via a hose. The screw air compressor 510 generates compressed air and delivers it to the air receiver 520 for storage. The compressed air in the air receiver 520 enters the sand tank 530 and mixes with the abrasive in the sand tank 530 to form a high-pressure sandblasting medium. The high-pressure sandblasting medium is delivered to the nozzle 540 via a hose and is sprayed out by the nozzle 540 to sandblast and remove rust from the irregular steel pipe fitting 10.

[0074] The six-axis robotic arm 550 can move in multiple degrees of freedom, allowing the nozzle 540 to flexibly adjust its position and angle to adapt to the various surfaces of the irregular steel pipe fitting 10. Through the precise control of the six-axis robotic arm 550, the nozzle 540 can move along the contour of the irregular steel pipe fitting 10, ensuring that the blasting medium evenly covers every part of the pipe fitting surface.

[0075] Please continue reading. Figure 1 and Figure 2In an embodiment of this utility model, the bearing structure 200 includes an inner guide rail 210 and a bearing platform 220. The inner guide rail 210 extends in the horizontal direction and is spaced apart from the outer guide rail 100. The bearing platform 220 is slidably mounted on the inner guide rail 210 in the horizontal direction and is used to support irregular steel pipe fittings 10.

[0076] The inner guide rail 210 and the outer guide rail 100 are arranged parallel to each other and spaced apart, forming a double-track support structure. A sliding component is provided at the bottom of the support platform 220 to cooperate with the inner guide rail 210, ensuring that the support platform 220 maintains linear horizontal movement during movement. The length of the inner guide rail 210 is greater than that of the outer guide rail 100, allowing the support platform 220 to maintain stable support through the extension of the inner guide rail 210 even when it is in the extended position 101. Fixing clamps or slots are provided on the surface of the support platform 220 to clamp irregular steel pipe fittings 10, preventing them from shaking during movement or sandblasting.

[0077] Specifically, the support platform 220 moves on the inner guide rail 210 via a sliding component. When the clamping mechanism 400 of the gantry 300 pushes the support platform 220, the inner guide rail 210 and the outer guide rail 100 jointly constrain the movement trajectory of the support platform 220, preventing lateral displacement caused by single-track support. The spaced arrangement of the inner guide rail 210 and the outer guide rail 100 disperses the load on the support platform 220 and the workpiece, reducing wear on the single track. During sandblasting, the support platform 220 fully enters the sandblasting area through the extension of the inner guide rail 210, ensuring that the nozzle 540 can cover the entire surface of the workpiece. After processing, the support platform 220 returns to the push-in position 102 along the inner guide rail 210. The extension of the inner guide rail 210 provides sliding space for the support platform 220, preventing interference with the end structure of the outer guide rail 100.

[0078] The separate arrangement of the inner guide rail 210 and the outer guide rail 100 increases the flexibility of the load-bearing structure 200, facilitating the adjustment of the position of the load-bearing platform 220 according to irregular steel pipe fittings 10 of different sizes. Simultaneously, the load-bearing platform 220 can slide freely on the inner guide rail 210, facilitating the loading, unloading, and adjustment of the position of irregular steel pipe fittings 10 by operators, thus improving operational efficiency. Furthermore, the spacing between the inner guide rail 210 and the outer guide rail 100 increases the stability of the entire equipment, reduces the impact of vibration during sandblasting and rust removal, and helps improve the quality and precision of sandblasting and rust removal.

[0079] In an embodiment of this utility model, friction blocks for abutting against the clamping mechanism 400 are provided on both sides of the bearing platform 220 that are arranged opposite to each other along the extension direction of the outer guide rail 100.

[0080] The friction blocks are bolted to both sides of the bearing platform 220. They are made of nitrile rubber, 15 mm thick, and their width matches the sides of the bearing platform 220. When the friction blocks come into contact with the surface of the clamping mechanism 400, they generate frictional resistance, increasing the stability of the clamping mechanism 400 when it clamps against the bearing platform 220.

[0081] Please continue reading. Figure 1 and Figure 2 In an embodiment of this utility model, the length of the inner guide rail 210 is greater than the length of the outer guide rail 100, one end of the inner guide rail 210 is aligned with one end of the outer guide rail 100, and the other end of the inner guide rail 210 extends beyond the other end of the outer guide rail 100.

[0082] Specifically, the inner guide rail 210 extends horizontally parallel to the outer guide rail 100. The starting end of the inner guide rail 210 and the starting end of the outer guide rail 100 are in the same vertical plane, and the ending end of the inner guide rail 210 extends outward relative to the ending end of the outer guide rail 100 to form an elongated section. When the bearing platform 220 slides along the inner guide rail 210 to the limit position corresponding to the ending end of the outer guide rail 100, the elongated section continues to provide sliding support for the bearing platform 220. At this time, the bearing platform 220 is completely detached from the coverage area of ​​the outer guide rail 100. The length difference between the elongated section and the ending end of the outer guide rail 100 is set to 1.2 times the length of the bearing platform 220 along the direction of guide rail movement. This ensures that after the irregular steel pipe fitting 10 is sandblasted and rusted, the bearing platform 220 can push the irregular steel pipe fitting 10 out of the processing area, facilitating the disassembly and assembly of the irregular steel pipe fitting 10 onto the bearing platform 220.

[0083] Please continue reading. Figure 1 In an embodiment of this utility model, the sandblasting and rust removal equipment for irregular steel pipe fittings further includes a sandblasting chamber 600, which is mounted above the outer guide rail 100, the load-bearing structure 200 and the gantry frame 300.

[0084] Dust and debris generated during the operation of sandblasting and rust removal equipment can easily spread into the surrounding environment, causing pollution in the processing area. The sandblasting chamber 600 adopts a fully enclosed or semi-enclosed structure, with its bottom edge forming a continuous contact surface with the plane of the outer guide rail 100. A transparent observation window and ventilation filtration device are installed at the top. The internal space of the sandblasting chamber 600 completely covers the movement path between the extension position 101 and the insertion position 102 of the outer guide rail 100, and the sliding range of the carrying platform 220 on the inner guide rail 210 is within the coverage area of ​​the sandblasting chamber 600. When the gantry 300 moves the sandblasting and rust removal end, the movement trajectory of the six-axis robotic arm 550 is restricted to the internal space of the sandblasting chamber 600.

[0085] Specifically, the sandblasting chamber 600 confines the dust generated during sandblasting within a fixed area through the enclosed space formed by its side walls and top. A ventilation and filtration device extracts and filters the dust-laden air before discharging it. When the carrying platform 220 moves between the push-in position 102 and the push-out position 101 carrying the workpiece, the opening in the sandblasting chamber 600 along the extension direction of the outer guide rail 100 allows the carrying platform 220 to enter and exit, with a flexible sealing curtain at the opening to prevent dust spillage. During processing, when the gantry 300 drives the nozzle 540 to move along the crossbeam 311, the transparent observation window on the top of the sandblasting chamber 600 allows operators to monitor the sandblasting status in real time. The bottom of the sandblasting chamber 600 is bolted to the ground foundation, and a safety clearance is maintained between its side walls and the base 320 of the gantry 300 to avoid interfering with the operation of the horizontal displacement drive component 330. This effectively solves the problem of dust diffusion during sandblasting operations and prevents dust spillage from polluting the workshop environment.

[0086] The above are merely exemplary embodiments of this utility model and do not limit the scope of protection of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A sandblasting and rust removal device for irregular steel pipe fittings, characterized in that, include: An outer guide rail extends horizontally, and both ends of the outer guide rail along its extension direction are respectively provided with an extension position and a push-in position; A load-bearing structure is disposed on one side of the outer guide rail, and the load-bearing structure is used to support the irregular steel pipe fitting; A gantry frame, which is slidably mounted on the outer guide rail in a horizontal direction; A clamping mechanism is installed on the gantry frame at a position corresponding to the bearing structure. The clamping mechanism can switch between a vertical or horizontal state, correspondingly disengaging from or clamping to one side of the bearing structure, and is used to enable the gantry frame to drive the bearing structure and the irregular steel pipe to move between the push-out position and the push-in position through the clamping mechanism. A sandblasting and rust removal system is provided, which is located on the outside of the outer guide rail. The sandblasting and rust removal end of the sandblasting and rust removal system is installed on the gantry frame and faces the irregular steel pipe.

2. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in claim 1, characterized in that, The gantry includes a frame, a base, and a horizontal displacement drive. The base is slidably mounted on the outer guide rail in the horizontal direction. The frame is mounted on the base. An installation space is provided inside the base. The horizontal displacement drive is housed in the installation space and connected to the inner top wall of the base. The output end of the horizontal displacement drive abuts against the outer guide rail and is used to drive the base to move the frame in the horizontal direction.

3. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in claim 2, characterized in that, The clamping mechanism includes a mounting base, a rotary drive, a rotating shaft, and a clamping plate. The rotary drive passes through the mounting base and is mounted on the side wall of the base. The rotating shaft extends horizontally, and the clamping plate extends vertically. The clamping plate is connected to one end of the rotating shaft at a position corresponding to the bearing structure. The other end of the rotating shaft is connected to the output end of the rotary drive. The rotary drive is used to drive the rotating shaft to switch the clamping plate between the vertical and horizontal positions, and to enable the gantry frame to move the bearing structure and the irregular steel pipe between the push-out position and the push-in position via the clamping plate.

4. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in claim 3, characterized in that, The outer sleeve of the clamping plate is equipped with a rubber sleeve.

5. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in claim 2, characterized in that, The frame includes a crossbeam and two vertical rods, which are connected by the crossbeam. There are two outer guide rails. The two vertical rods are slidably connected to the two outer guide rails by the two bases respectively. The sandblasting and rust removal end of the sandblasting and rust removal system is installed on the crossbeam and is oriented towards the irregular steel pipe.

6. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in claim 5, characterized in that, The sandblasting and rust removal system includes a screw air compressor, an air tank, a sand tank, a nozzle, and a six-axis robotic arm. The six-axis robotic arm is mounted on the crossbeam, and the nozzle is mounted on the six-axis robotic arm, forming the sandblasting and rust removal end. The screw air compressor, the air tank, and the sand tank are located outside the outer guide rail, and the screw air compressor, the air tank, the sand tank, and the nozzle are connected in sequence.

7. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in any one of claims 1 to 6, characterized in that, The supporting structure includes an inner guide rail and a supporting platform. The inner guide rail extends horizontally and is spaced apart from the outer guide rail. The supporting platform is slidably mounted on the inner guide rail in the horizontal direction and is used to support the irregular steel pipe fitting.

8. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in claim 7, characterized in that, The bearing platform is provided with friction blocks on both sides that are opposite each other along the extension direction of the outer guide rail, for abutting against the clamping mechanism.

9. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in claim 7, characterized in that, The inner guide rail is longer than the outer guide rail. One end of the inner guide rail is aligned with one end of the outer guide rail, and the other end of the inner guide rail extends beyond the other end of the outer guide rail.

10. The sandblasting and rust removal equipment for irregular steel pipe fittings as described in any one of claims 1 to 6, characterized in that, The sandblasting and rust removal equipment for irregular steel pipe fittings also includes a sandblasting room, which is installed above the outer guide rail, the load-bearing structure, and the gantry frame.

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