A rib root cleaning machine

Abstract

The present invention discloses a rib root cleaning machine, comprising a laser detection mechanism, a rib root cleaning arm, a fixture, a workbench, a spindle rotary and a root cleaning device. The fixture is arranged on the periphery of the upper surface of the workbench to achieve locking of the rib; the spindle rotary is arranged at the center of the upper surface of the workbench and can rotate around the center point of the workbench; one end of the rib root cleaning arm is fixedly connected to the spindle rotary, and the other end extends to the periphery of the upper surface of the workbench; a moving mechanism is arranged on the rib root cleaning arm, and a laser detection mechanism 2 and a root cleaning device 8 are arranged on the moving mechanism. The moving mechanism can drive the laser detection mechanism and the root cleaning device to move axially along the rib root cleaning arm. The present invention utilizes metal cutting processing for cutting, which is easier to ensure product quality than the previous method of using carbon arc gouging. It is environmentally friendly and economical and significantly improves efficiency, reduces thermal stress deformation of steel plate parts, ensures subsequent welding quality, and ultimately improves the overall stability of the product.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, in particular to a rib root cleaning machine. Background Art

[0002] Rib weldments are mostly used to support underwater hulls that require greater rib strength. During hull construction, ribs are usually welded. After the internal weld (the base weld) is welded, the external weld is welded after the external weld is cleaned to achieve the technical welding quality. The most basic work to ensure welding quality is weld cleaning. Currently, the main method of weld cleaning is manual carbon planing, using simple tooling and manual operation, and using a carbon planer to remove the weld slag on the back of the weld. This method will bring the following problems:

[0003] (1) Irregular groove processing

[0004] Due to limitations in on-site construction conditions, large errors in groove dimensions are inevitable, such as misaligned corners in a Y-shaped groove or excessively large edges in a K-shaped groove. This is especially true for medium-thick plate welds, where the gouging groove is necessarily deep and narrow, making it difficult for the slag pool to escape, resulting in sticky slag that hinders the gouging process. Furthermore, due to poor visibility, carbon rods can easily contact the gouged surface, causing carburization and steel sticking.

[0005] (2) Poor team quality

[0006] Due to the influence of construction period and consideration of the overall size of the structure, uneven team gaps often occur, especially long welds, which will lead to inconsistent penetration depth on the first weld side and large differences in the width and depth of the back groove.

[0007] (3) Incomplete root cleaning

[0008] The areas that require root cleaning may not be cleaned thoroughly due to manual operation.

[0009] (4) Dust and arc light pollution

[0010] The carbon arc gouging processing method will bring about a lot of smoke, dust pollution and arc radiation. If better protective measures are not taken, these pollutions will not only pollute the workshop and factory buildings, but also reduce the service life of other equipment in the workshop. On the other hand, dust pollution and arc pollution will also cause certain harm to human life and health.

[0011] (5) Carbonization and local hardening of the metal surface, as well as changes in the local internal crystal structure of the metal.

[0012] The high temperature and airflow of carbon planer root cleaning will cause carbonization of the metal surface, and a hardened layer will appear locally on the metal surface with uneven hardness. It will also cause changes in the local internal crystal structure of the metal, making it impossible to guarantee the quality of subsequent welding. Summary of the Invention

[0013] The purpose of the present invention is to provide a rib root cleaning machine with high efficiency, high construction precision and little pollution.

[0014] The technical solutions for achieving the purpose of the present invention are:

[0015] A rib root cleaning machine includes a laser detection mechanism, a rib root cleaning arm, a clamp, a workbench, a spindle rotary and a root cleaning device, wherein the clamp is arranged on the periphery of the upper surface of the workbench to achieve locking of the rib; the spindle rotary is arranged at the center of the upper surface of the workbench and can rotate around the center point of the workbench; one end of the rib root cleaning arm is fixedly connected to the spindle rotary and the other end extends to the periphery of the upper surface of the workbench; a moving mechanism is provided on the rib root cleaning arm, and the laser detection mechanism and the root cleaning device are arranged on the moving mechanism, and the moving mechanism can drive the laser detection mechanism and the root cleaning device to move axially along the rib root cleaning arm.

[0016] Furthermore, the moving mechanism includes a hydraulic cylinder, a sliding guide rail and a hydraulic motor, the hydraulic motor is connected to the hydraulic cylinder, the hydraulic cylinder is connected to the sliding guide rail, the sliding guide rail can move axially along the rib root cleaning arm, and the laser detection mechanism and root cleaning equipment are arranged on the sliding guide rail.

[0017] Furthermore, the root cleaning device includes a tool holder, a tool and a detection system, and the detection system includes a visual detector and a profiling device.

[0018] Furthermore, the visual detector can perform video detection of rib root cleaning in real time.

[0019] Furthermore, the profiling device uses a displacement sensor or a laser detection device to detect and profile the ribs.

[0020] Furthermore, the laser detection mechanism includes a laser detector, a laser detector fixing seat, a rotating shaft and a fixed shaft, the laser detector is fixed to the upper part of the laser detector fixing seat, and the lower part of the laser detector fixing seat is connected to the rotating shaft rotatably connected to the fixed shaft.

[0021] Furthermore, the tool holder and the fixed shaft are both mounted on a connecting seat, the connecting seat is fixedly connected to the moving mechanism, the tool holder can slide along the connecting seat, and the laser detection mechanism can adjust the distance from the connecting seat.

[0022] Furthermore, the clamp includes a vertical locking cylinder, a bracket, a web pressing block and a diameter adjustment cylinder. The bracket includes a horizontal support and a vertical support. The diameter adjustment cylinder can drive the web pressing block to move in the horizontal direction on the horizontal support, and the vertical locking cylinder can move in the vertical direction on the vertical support.

[0023] Furthermore, the clamps include a plurality of clamps, and the plurality of clamps are arranged along the circumferential direction.

[0024] Furthermore, a counterweight is provided on the main shaft rotary machine.

[0025] Compared with the prior art, the present invention has the following significant advantages:

[0026] (1) The present invention utilizes metal cutting processing for cutting, and can adopt turning processing for cutting, which is easier to ensure product quality than the previous method of using carbon arc gouging, is environmentally friendly and economical, and significantly improves efficiency, can obtain a higher metal removal rate and good processing surface quality, reduces the heat transferred to the workpiece, reduces the thermal stress deformation of the steel plate parts, ensures the subsequent welding quality, and ultimately improves the overall stability of the product;

[0027] (2) The present invention uses a uniquely designed laser detection mechanism, rib root cleaning arm and root cleaning equipment to enable the laser detection mechanism and root cleaning equipment to rotate and move automatically, thereby improving construction efficiency and ensuring the accuracy of rib root cleaning. It also eliminates the adverse effects of the carbon arc gouging process on the operator's body and reduces pollution to the environment.

[0028] The present invention is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the rib root cleaning machine of the present invention.

[0030] Figure 2 Schematic diagram of the rib structure.

[0031] Figure 3 This is a schematic diagram of the installation of the laser detection mechanism, root cleaning equipment and rib root cleaning arm.

[0032] Figure 4 This is a structural diagram of the root cleaning equipment.

[0033] Figure 5 Schematic diagram of the fixture structure.

[0034] Figure 6 It is a structural diagram of the laser detection mechanism. DETAILED DESCRIPTION

[0035] In order to illustrate the technical solution and technical purpose of the present invention, the present invention is further introduced below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 As shown, a rib root cleaning machine includes a laser detection mechanism 2, a rib root cleaning arm 3, a clamp 4, a workbench 5, a spindle rotary machine 6 and a root cleaning device 8, wherein the clamp 4 is arranged on the periphery of the upper surface of the workbench 5 for locking the rib 1; the spindle rotary machine 6 is arranged at the center of the upper surface of the workbench 5 and can rotate around the center point of the workbench 5; one end of the rib root cleaning arm 3 is fixedly connected to the spindle rotary machine 6, and the other end extends to the periphery of the upper surface of the workbench 5, and a moving mechanism is provided on the rib root cleaning arm 3, and the laser detection mechanism 2 and the root cleaning device 8 are arranged on the moving mechanism, and the moving mechanism can drive the laser detection mechanism 2 and the root cleaning device 8 to move axially along the rib root cleaning arm 3.

[0037] Further, combined with Figure 3 The moving mechanism includes a hydraulic cylinder 9, a sliding guide rail 10 and a hydraulic motor 11. The hydraulic motor 11 is connected to the hydraulic cylinder 9, and the hydraulic cylinder 9 is connected to the sliding guide rail 10. The sliding guide rail 10 can move axially along the rib root cleaning arm 3. The laser detection mechanism 2 and the root cleaning device 8 are arranged on the sliding guide rail 10. Under the control of the hydraulic system, the sliding guide rail 10 can drive the laser detection mechanism 2 and the root cleaning device 8 to move axially along the rib root cleaning arm 3.

[0038] Combine Figure 4 The root cleaning device 8 includes a tool holder 8-1, a tool 8-2 and a detection system 8-3. The tool 8-2 is, for example, a cutting tool, which can rotate and move with the rib root cleaning arm 3 to realize root cleaning at different positions of the rib. The detection system 8-3 includes a visual detector and a profiling device. The visual detector can perform real-time video detection of the rib root cleaning to ensure the accuracy of the rib root cleaning. The profiling device uses a displacement sensor or a laser detection device to detect and profile the rib 1. The profiling device enables the cutting tool to follow the panel 1-2 and the web 1-1 of the rib 1 (see Figure 2 ) fluctuations to achieve the root cleaning incision shape meeting the design requirements without damaging the surface of the panel and the web. Displacement sensors or laser detection are used to detect and imitate the workpiece, and the data is fed back to the system. The tool root cleaning direction is compensated by imitating the web and panel, so that the width and depth of the root cleaning part remain uniform, thereby ensuring the accuracy of the root cleaning position.

[0039] Combine Figure 6The laser detection mechanism 2 includes a laser detector 16, a laser detector fixing seat 17, a rotating shaft 18 and a fixed shaft 19. The laser detector 16 is fixed to the upper part of the laser detector fixing seat 17, and the lower part of the laser detector fixing seat 17 is connected to the rotating shaft 18 which is rotatably connected to the fixed shaft 19. After the rib assembly process, the laser detection mechanism is started, and the rotating shaft 18 drives the laser detector 16 to rotate. The laser detector 16 detects the inner circle of the scanning panel 1-2 to determine the size and shape deviation on both sides of the rib panel 1-2.

[0040] Combine Figure 3-4 The tool holder 8-1 and the fixed shaft 19 are both installed on the connecting seat 20, and the connecting seat 20 is fixedly connected to the sliding guide rail 10. The tool holder 8-1 can slide along the connecting seat 20, and the laser detection mechanism 2 can adjust the distance from the connecting seat 20, that is, it can extend and retract a certain distance to achieve up and down height adjustment.

[0041] Combine Figure 5 The clamp 4 includes a vertical locking cylinder 12, a bracket 13, a web pressing block 14 and a diameter adjustment cylinder 15. The bracket 13 includes a horizontal support and a vertical support. The diameter adjustment cylinder 15 can drive the web pressing block 14 to move horizontally on the horizontal support. The vertical locking cylinder 12 can move vertically on the vertical support. When the vertical locking cylinder 12 is pressed down and locked, the web pressing block 14 directly presses the web 1-1 to achieve clamping of the ribs.

[0042] Combine Figure 1 The fixtures 4 include a plurality of fixtures 4 arranged in a circumferential direction. A counterweight 7 is also provided on the spindle rotary machine 6.

[0043] The equipment of the present invention also includes the necessary electrical systems, including a detection system, a data processing system and a control system to achieve automated operation and high-precision construction.

[0044] After the rib panel 1-2 and the web 1-1 are welded on one side (rib structure as shown in the figure), Figure 2As shown, before welding on the other side, the welded root on that side must be cleaned to eliminate welding slag and various defects caused by the weld root, thereby ensuring that the welding quality on the other side meets the technical requirements. The equipment is equipped with a laser detector 16. After the rib 1 is positioned and installed, the laser detector 16 is activated to scan and inspect the rib before the rib root is cleaned to determine whether the rib shape accuracy and installation position accuracy meet the processing requirements. The detection system 8-3 is equipped with a visual inspection device to monitor the cutting and root cleaning process in real time. Under the rotation of the spindle 6, the laser detection mechanism 2, the rib root cleaning arm 3, and the root cleaning device 8 are rotated to realize the root cleaning and detection of different positions of the rib. Under the control of the hydraulic system, the sliding guide rail 10 can drive the laser detection mechanism 2 and the root cleaning device 8 to move axially along the rib root cleaning arm 3 to adjust the distance from the rib. The tool holder 8-1 can slide along the connecting seat 20, and the laser detection mechanism 2 can adjust the distance from the connecting seat 20, thereby realizing the height adjustment of the root cleaning device 8 and the laser detection mechanism 2. If an unexpected situation occurs during the root cleaning process, the equipment will automatically stop. After the rib root is cleaned, the rib root cleaning condition is inspected by a visual inspection instrument to ensure that the rib root cleaning meets the accuracy requirements.

[0045] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A rib root cleaning machine, characterized in that: It includes a laser detection mechanism (2), a rib root cleaning arm (3), a fixture (4), a workbench (5), a spindle turning machine (6) and a root cleaning device (8), wherein: The clamp (4) is arranged on the outer periphery of the upper surface of the workbench (5) to achieve locking of the rib (1); The spindle rotor (6) is arranged at the center of the upper surface of the workbench (5) and is capable of rotating around the center point of the workbench (5); One end of the rib root cleaning arm (3) is fixedly connected to the spindle rotary machine (6), and the other end extends to the periphery of the upper surface of the workbench (5); a moving mechanism is provided on the rib root cleaning arm (3); the laser detection mechanism (2) and the root cleaning device (8) are provided on the moving mechanism; and the moving mechanism can drive the laser detection mechanism (2) and the root cleaning device (8) to move axially along the rib root cleaning arm (3); The root cleaning device (8) includes a tool holder (8-1), a tool (8-2) and a detection system (8-3). The detection system (8-3) includes a visual detector and a profiling device. The visual detector can perform video detection of rib root cleaning in real time. The profiling device uses a displacement sensor or a laser detection device to detect and profile the rib (1). The clamp (4) includes a vertical locking cylinder (12), a bracket (13), a web pressing block (14) and a diameter adjustment cylinder (15); the bracket (13) includes a horizontal support and a vertical support; the diameter adjustment cylinder (15) can drive the web pressing block (14) to move in the horizontal direction on the horizontal support; the vertical locking cylinder (12) can move in the vertical direction on the vertical support; the clamp (4) includes a plurality of clamps (4), and the plurality of clamps (4) are arranged in a circumferential direction.

2. The rib root cleaning machine according to claim 1, characterized in that: The moving mechanism includes a hydraulic cylinder (9), a sliding guide rail (10) and a hydraulic motor (11), wherein the hydraulic motor (11) is connected to the hydraulic cylinder (9), and the hydraulic cylinder (9) is connected to the sliding guide rail (10), and the sliding guide rail (10) can move axially along the rib root cleaning arm (3), and the laser detection mechanism (2) and the root cleaning device (8) are arranged on the sliding guide rail (10).

3. The rib root cleaning machine according to claim 1, characterized in that The laser detection mechanism (2) comprises a laser detector (16), a laser detector fixing seat (17), a rotating shaft (18) and a fixed shaft (19), wherein the laser detector (16) is fixed to the upper portion of the laser detector fixing seat (17), and the lower portion of the laser detector fixing seat (17) is connected to the rotating shaft (18) which is rotatably connected to the fixed shaft (19).

4. The rib root cleaning machine according to claim 3, characterized in that: The tool holder (8-1) and the fixed shaft (19) are both mounted on a connecting seat (20), the connecting seat (20) is fixedly connected to the moving mechanism, the tool holder (8-1) can slide along the connecting seat (20), and the laser detection mechanism (2) can adjust the distance from the connecting seat (20).

5. The rib root cleaning machine according to claim 1, characterized in that: A counterweight (7) is also provided on the main shaft rotary machine (6).

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