Locating and machining device for cabin structural part of offshore wind power generator

Abstract

The invention relates to the technical field of workpiece positioning and discloses an offshore wind power generator cabin structural member positioning and processing device which comprises a portal frame, two sides of the portal frame are movably connected with a first saddle and a second saddle respectively, the lower portion of the portal frame is movably connected with an exhaust fan, the bottom of the portal frame is movably connected through a guide rail, and a base is arranged below the portal frame. The first sliding saddle is provided with a machining head and a wire feeding structure which can be adjusted at multiple angles and is suitable for conventional machining, the second sliding saddle is connected with a six-axis mechanical arm and a machining assembly and can cope with complex machining, an exhaust fan can be adjusted at multiple dimensions, smoke dust in the machining process is efficiently absorbed, and the machining efficiency is improved. The working environment is improved, the wheels at the bottom of the base facilitate movement of the device, the supporting legs are matched to enhance the working stability, and the machining quality and the working safety are improved through the design of multi-dimensional adjustment, cooperation of the double machining executing mechanisms, stable clamping, buffering and damping, efficient dust removal and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of workpiece positioning, more particularly to a positioning machining device for offshore wind turbine generator cabin structural parts. BACKGROUND

[0002] As one of the core fields of global clean energy transformation, offshore wind power directly determines the operation reliability and service life of the unit. The traditional machining device lacks flexibility, and the existing single machining head or fixed track machining equipment cannot cover multiple dimensions and angles, requiring frequent manual adjustment of the workpiece or equipment position, resulting in low efficiency and easy processing deviation. Although some equipment is equipped with a mechanical arm, the linkage with the overall frame is poor, making it difficult to adapt to the large-scale machining needs of large workpieces. The workpiece clamping stability is poor. The structural parts have large size span, and the existing clamping device is of fixed specification, which needs to be re-adjusted when replacing the workpiece, and the adaptability is poor. In addition, there are vibration and impact during the machining process, which easily causes micro-displacement of the workpiece and affects the machining precision. The processing dust treatment effect is limited. The processing dust generated during the processing contains metal oxides and harmful gases, which not only harms the health of the operators, but also may adhere to the surface of the workpiece and affect the processing quality. The existing dust removal equipment is mostly fixed position dust collection, which is difficult to accurately capture dust with the machining head, especially when processing large workpieces, the smoke dust diffusion range is large, and the purification efficiency is low. The overall adaptability of the equipment is insufficient. Offshore wind power structural part processing often needs to be completed in the workshop for pretreatment and assembly processing. The existing equipment is mostly fixed installation, which is difficult to move flexibly according to the placement position of the workpiece. In addition, the vibration transmission in the machining operation easily affects the precision of the equipment itself, and lacks effective buffer and shock absorption design, which further restricts the stability of the processing quality.

[0003] Therefore, in view of the large size, special shape and high machining standard requirements of offshore wind turbine cabin structural parts, it is necessary to develop a positioning machining device with self-adaptive clamping and fixing, efficient dust treatment and stable operation performance, which is the key to improve production efficiency and processing quality. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a positioning machining device for offshore wind turbine generator cabin structural parts to solve the problems existing in the background art.

[0005] The present application provides the following technical scheme: a positioning machining device for offshore wind turbine generator cabin structural parts, comprising a gantry, a first sliding saddle movably connected to one side of the gantry, a second sliding saddle movably connected to the other side of the gantry, an air extractor movably connected to the lower part of the gantry, the bottom of the gantry movably connected to a guide rail, and a base provided below the gantry. Further, one side of the portal frame is provided with a first track, a first sliding block is movably connected to the first track, the other side of the portal frame is provided with a second track, a second sliding block is movably connected to the second track, the lower part of the portal frame is provided with a third track, and a third sliding block is movably connected to the third track.

[0006] Further, the first sliding block is movably connected with a first sliding saddle, the lower part of the first sliding saddle is movably connected with a first rotating block through a rotating shaft, the inner part of the first rotating block is movably connected with a rotating block, the inner part of the rotating block is fixedly connected with a machining head through a screw, the middle part of the machining head is fixedly connected with a clamping assembly through a screw, the lower part of the clamping assembly is fixedly connected with a clamping block through a screw, and the other end of the clamping block is fixedly connected with a wire guide tube.

[0007] Further, the second sliding block is movably connected with a second sliding saddle, the lower part of the second sliding saddle is fixedly connected with a six-axis mechanical arm, and the other end of the six-axis mechanical arm is fixedly connected with a machining assembly.

[0008] Further, the lower part of the exhaust fan is provided with an air outlet, the front face of the exhaust fan is fixedly connected with a dust suction cover, the upper part of the exhaust fan is fixedly connected to the lower part of a connecting block through a screw, the upper part of the connecting block is movably connected to the inner part of a second rotating block, the upper part of the second rotating block is fixedly connected to the lower part of a stepless adjustment lifting column, and the upper part of the stepless adjustment lifting column is fixedly connected with the third sliding block.

[0009] Further, the inner part of the base is equidistantly fixedly connected with clamping devices, the inner part of the base is fixedly connected with a plurality of buffer devices, the bottom of the base is fixedly connected with wheels, the buffer device is composed of a cylinder, a reset spring and a supporting column, the bottom of the cylinder is fixedly connected to the inner part of the base, the inner part of the cylinder is fixedly connected with the reset spring, the upper part of the reset spring is fixedly connected with the supporting column, and the lower part of the wheel is fixedly connected with a supporting leg.

[0010] Further, one side of the double-shaft air cylinder is movably connected with a first piston rod, the other side of the double-shaft air cylinder is movably connected with a second piston rod, the other end of the first piston rod is fixedly connected with a first clamping block, the other end of the second piston rod is fixedly connected with a second clamping block, the bottom of the double-shaft air cylinder is fixedly connected to a base plate, the upper surfaces of the two sides of the base plate are provided with sliding grooves, the bottom of the first clamping block is movably connected to the base plate through the sliding grooves, the bottom of the second clamping block is movably connected to the base plate through the sliding grooves, and the bottom of the base plate is fixedly connected to the inner part of a base.

[0011] Technical effects and advantages of the present application: The application is provided with a symmetrical clamping device driven by a double-shaft air cylinder, and uniform clamping force can be applied to cabin structural members (such as frames, shells, load-bearing beams, etc.) of different sizes through the synchronous reverse movement of the first and second clamping blocks along the sliding groove, the clamping deviation is controlled within ±0.5mm of the workpiece positioning, the problems of easy deviation of large workpiece positioning and uneven clamping force of traditional machining devices are solved, the stability of the workpiece reference position in the machining process is ensured, and a foundation guarantee is provided for the machining forming precision.

[0012] The application is provided with a buffer device built in the base, and the machining vibration (the amplitude attenuation rate can reach more than 60%) is absorbed through the elastic deformation of the return spring, the workpiece micro-displacement caused by vibration is avoided, the machining precision fluctuation is controlled within ±0.3mm, the quality defects caused by vibration are effectively reduced, and the machining stability is improved.

[0013] The lower part of the gantry is provided with an air extractor, the dust generated in the machining process is collected in a directional way through the dust hood, and the height and horizontal position of the dust hood can be flexibly adjusted according to the position of the machining head by cooperating with the movement of the stepless adjustment lifting column and the third sliding block, so that the dust collection efficiency is ensured. This design effectively reduces the health hazards of machining dust to the operators, avoids the influence of dust adhering to the workpiece surface on subsequent machining, and meets the requirements of green production and safe operation.

[0014] The base is provided with wheels with supporting legs at the bottom, so that it has flexibility and high stability during operation, and it is convenient to adjust the work position in the workshop and adapt to different production layout requirements. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the application.

[0016] Figure 2 It is a schematic diagram of the gantry structure of the application.

[0017] Figure 3 It is a schematic diagram of the first machining device structure of the application.

[0018] Figure 4 It is a schematic diagram of the second machining device structure of the application.

[0019] Figure 5 It is a schematic diagram of the dust collection device structure of the application.

[0020] Figure 6 It is a schematic diagram of the fixing device structure of the application.

[0021] Figure 7 It is a schematic diagram of the clamping device structure of the application.

[0022] Figure 8 It is a schematic diagram of the buffer device structure of the application.

[0023] Figure 9 Fig. 1 is a schematic view of a wheel structure of the present application.

[0024] The figure is marked as: 1, gantry; 101, first track; 102, first slider; 103, second track; 104, second slider; 105, third track; 106, third slider; 2, first saddle; 201, first rotating block; 202, adapter block; 203, machining head; 204, clamping assembly; 205, clamping block; 206, wire guide tube; 3, second saddle; 301, six-axis mechanical arm; 302, machining assembly; 4, air extractor; 401, air outlet; 402, dust suction cover; 403, connecting block; 404, second rotating block; 405, stepless adjustment lifting column; 5, guide rail; 6, base; 601, clamping device; 6011, double-shaft air cylinder; 6012, first piston rod; 6013, second piston rod; 6014, first clamping block; 6015, second clamping block; 6016, bottom plate; 6017, sliding groove; 602, buffer device; 6021, cylinder; 6022, return spring; 6023, support column; 603, wheel; 6031, support leg. DETAILED DESCRIPTION

[0025] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. In addition, the forms of each structure described in the following embodiments are only examples, and the offshore wind turbine generator cabin structure positioning and machining device involved in the present application is not limited to each structure described in the following embodiments. All other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0026] Referring to Figure 1 , the present application provides an offshore wind turbine generator cabin structure positioning and machining device, which comprises a gantry 1, one side of the gantry 1 is movably connected with a first saddle 2, the other side of the gantry 1 is movably connected with a second saddle 3, the lower part of the gantry 1 is movably connected with an air extractor 4, the bottom of the gantry 1 is movably connected on a guide rail 5, and the lower surface of the gantry 1 is provided with a base 6. Referring to Figure 1 and Figure 2 , one side of the gantry 1 is provided with a first track 101, the first track 101 is movably connected with a first slider 102, the other side of the gantry 1 is provided with a second track 103, the second track 103 is movably connected with a second slider 104, the lower part of the gantry 1 is provided with a third track 105, and the third track 105 is movably connected with a third slider 106.

[0027] The multi-track independent design allows each component to be adjusted independently along the gantry 1 without interfering with each other, adapting to the processing needs of cabin structural components of different sizes and weld positions, and improving the versatility of the device.

[0028] Reference Figure 2 and Figure 3 The first slider 102 is movably connected to a first saddle 2. The lower part of the first saddle 2 is movably connected to a first rotating block 201 via a rotating shaft. The interior of the first rotating block 201 is movably connected to a transition block 202. The interior of the transition block 202 is fixedly connected to a processing head 203 via screws. The middle part of the processing head 203 is fixedly connected to a clamping assembly 204 via screws. The lower part of the clamping assembly 204 is fixedly connected to a clamping block 205 via screws. The other end of the clamping block 205 is fixedly connected to a guide wire tube 206 via screws.

[0029] The design of the rotating shaft and the adapter block 202 allows the machining head 203 to be flexibly adjusted in angle, and different machining heads 203 can be replaced to adapt to welds in different directions. The wire guide tube 206 is fixed by the clamping block 205 to ensure stable wire feeding during the processing, avoid uneven welds caused by wire feeding deviation, and improve the consistency of processing quality.

[0030] Reference Figure 2 and Figure 4 The second slider 104 is movably connected to a second saddle 3, and a six-axis robotic arm 301 is fixedly connected to the lower part of the second saddle 3. A processing component 302 is fixedly connected to the other end of the six-axis robotic arm 301.

[0031] By setting up a six-axis robotic arm 301, which has multi-degree-of-freedom motion capabilities, it can flexibly extend into complex cavities and corners of the cabin structure to complete weld processing that is difficult to reach manually or with conventional processing heads. This compensates for the operational limitations of the first sliding saddle 2. The combination of the six-axis robotic arm 301 and the second sliding saddle 3 allows for a wide range of movement within the gantry 1's movement range. Combined with the high-precision control of the six-axis robotic arm 301 itself, it ensures the processing accuracy of complex welds and meets the high processing standards required for large cabin structure components.

[0032] Reference Figure 2 and Figure 5 The exhaust fan 4 has an air outlet 401 at its lower part. A dust hood 402 is fixedly connected to the front of the exhaust fan 4. The upper part of the exhaust fan 4 is fixedly connected to the lower part of the connecting block 403 by screws. The upper part of the connecting block 403 is movably connected to the inside of the second rotating block 404. The upper part of the second rotating block 404 is fixedly connected to the lower part of the stepless adjustment lifting column 405. The upper part of the stepless adjustment lifting column 405 is fixedly connected to the third slider 106.

[0033] By setting the dust hood 402 to accurately align the machining point, efficiently absorb the smoke, arc light and harmful gas generated during the machining process, and discharge or process through the air outlet 401, the working environment is significantly improved, the risk of inhaling harmful substances by the operator is reduced, and the safety and environmental protection requirements are met. By designing the stepless adjustment lifting column 405 and the third sliding block 106, the exhaust fan 4 can be adjusted in height, angle and horizontal position synchronously with the machining position, ensuring the smoke capture efficiency and avoiding the dust removal dead angle caused by fixed position.

[0034] With reference to Figure 6 , Figure 8 and Figure 9 , the inside of the base 6 is fixedly connected with a clamping device 601, the inside of the base 6 is fixedly connected with a plurality of buffer devices 602, the bottom of the base 6 is fixedly connected with wheels 603, the buffer device 602 is composed of a cylinder 6021, a return spring 6022 and a supporting column 6023, the bottom of the cylinder 6021 is fixedly connected in the inside of the base 6, the inside of the cylinder 6021 is fixedly connected with the return spring 6022, the upper part of the return spring 6022 is fixedly connected with the supporting column 6023, and the lower part of the wheel 603 is fixedly connected with a supporting leg 6031.

[0035] The impact force is absorbed by the elastic deformation of the return spring 6022, the influence of vibration on the base 6 and the upper gantry 1 and the machining components is reduced, the machining precision caused by vibration is avoided, the supporting leg 6031 can fix the device during machining operation, the equipment displacement caused by wheel sliding is prevented, the overall stability during machining is ensured, and the needs of workpiece positioning “mobility” and workpiece positioning “working stability” are balanced.

[0036] With reference to Figure 6 and Figure 7 , one side of the double-shaft air cylinder 6011 is movably connected with a first piston rod 6012, the other side of the double-shaft air cylinder 6011 is movably connected with a second piston rod 6013, the other end of the first piston rod 6012 is fixedly connected with a first clamping block 6014, the other end of the second piston rod 6013 is fixedly connected with a second clamping block 6015, the bottom of the double-shaft air cylinder 6011 is fixedly connected on a bottom plate 6016, the upper surfaces on both sides of the bottom plate 6016 are provided with sliding grooves 6017, the bottom of the first clamping block 6014 is movably connected on the bottom plate 6016 through the sliding grooves 6017, the bottom of the second clamping block 6015 is movably connected on the bottom plate 6016 through the sliding grooves 6017, and the bottom of the bottom plate 6016 is fixedly connected in the inside of the base 6.

[0037] With the symmetrical drive design of the dual-axis cylinder 6011, the clamping blocks can be adjusted to stably clamp cabin structural components of different sizes and weights, preventing workpiece displacement during processing and ensuring the accuracy of the processing position from the source. The sliding groove 6017 guides the clamping blocks to move smoothly, avoiding deformation caused by uneven force on the workpiece during clamping and protecting the integrity of the workpiece. It is especially suitable for fixing large and easily deformable cabin structural components.

[0038] Working principle of the invention: 1. Fixed support: First, move 6 to the bottom of the gantry 1 via the wheel 603 to adjust its position. During operation, the support foot 6031 under the wheel 603 touches the ground. The bottom of the support foot 6031 is a non-slip rubber pad with a friction coefficient ≥0.8, which increases the friction with the ground and resists the reaction torque during the processing to fix the equipment as a whole, prevent slippage, and further ensure the stability of the processing.

[0039] 2. Workpiece Positioning and Fixing: First, the machine compartment structural component to be processed is placed on the base. The clamping device 601 inside the base is activated: the dual-axis cylinder 6011 drives the first piston rod 6012 and the second piston rod 6013 on both sides to extend and retract synchronously, causing the first clamping block 6014 and the second clamping block 6015 to move towards or in opposite directions along the sliding groove 6017 of the base plate 6016. By adjusting the extension and retraction of the dual-axis cylinder 6011, it can accommodate large structural components of different lengths and widths, achieving centered clamping and fixing of the workpiece, avoiding workpiece displacement caused by vibration or external force during processing, and ensuring the stability of the processing reference.

[0040] 3. Overall Equipment and Component Position Adjustment: After the machine cabin components to be processed are fixed, the gantry 1 is moved. The bottom of the gantry 1 is movably connected to the guide rail 5 and can slide horizontally along the guide rail, driving the entire processing system to cover different areas of the workpiece, adapting to the wide-range processing needs of large structural components. The first sliding saddle 2 slides on the first track 101 of the gantry 1 via the first slider 102, achieving horizontal position adjustment; its lower first rotating block 201 can rotate around the axis, and the adapter block 202 drives the processing head 203 to flexibly adjust the processing angle, cooperating with the guide tube 206 for processing. The second sliding saddle 3 moves on the second track 103 via the second slider 104, and its lower six-axis robotic arm 301 can achieve multi-degree-of-freedom rotation and extension, driving the processing component 302 to precisely fit complex processing positions such as irregular curved surfaces and multi-directional intersections, forming a collaborative processing with the first sliding saddle, covering all types of structural component processing.

[0041] 4、Work operation execution: after the workpiece positioning and position adjustment are completed, when the outside of the cabin structure to be machined needs to be machined, the first slide saddle 2 is started, the position required for machining is adjusted, and then the machining head 203 is started according to the preset program or manual operation, the machining head 203 is kept in a stable posture by the clamping assembly 204 and the clamping block 205, the guide tube 206 continuously delivers, and the machining of the conventional linear or simple curved surface is completed. When the inside of the cabin structure to be machined needs to be machined, the second slide saddle 3 is started, the position required for machining is adjusted, and then the machining assembly 302 is started according to the preset program or manual operation, the six-axis mechanical arm 301 drives the machining assembly 302, and by virtue of its multi-joint flexible motion characteristics, it is suitable for special-shaped machining of the cabin structure, such as box corner and curved surface transition, and precise machining of complex paths is realized. The two work together to reduce the adaptability limitations of a single machining device to complex structural parts, and improve the machining coverage and efficiency.

[0042] 5、Processing of smoke dust: the smoke dust generated during machining is processed in real time by the exhaust fan 4, the exhaust fan 4 moves on the third rail 105 through the third slide block 106, cooperates with the stepless adjustment lifting column 405 to adjust the height, the second rotating block 404 drives the dust cover 402 to rotate, and the dust cover 402 is accurately aligned with the smoke dust generation point. When the exhaust fan 4 works, the smoke dust is sucked into the dust cover 402 and discharged through the air outlet 401 to connect the external purification system, effectively reducing the influence of smoke dust on the health of operators and the surface quality of workpieces.

[0043] 6、Buffering and damping: the vibration generated during machining is transmitted to the buffering device 602 through the base 6, the supporting column 6023 is compressed to compress the reset spring 6022 in the cylinder 6021, the elastic deformation of the spring absorbs vibration energy, and reduces the interference of vibration on the clamping stability of the workpiece and the machining precision.

[0044] Finally: the above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A positioning and processing device for offshore wind turbine nacelle structural components, comprising a gantry (1), characterized in that: The gantry frame (1) is movably connected to a first sliding saddle (2) on one side and to a second sliding saddle (3) on the other side. A fan (4) is movably connected to the lower part of the gantry frame (1). The bottom of the gantry frame (1) is movably connected to a guide rail (5). A base (6) is provided under the gantry frame (1). A clamping device (601) is fixedly connected at equal intervals inside the base (6). A plurality of buffer devices (602) are fixedly connected inside the base (6). A wheel (603) is fixedly connected to the bottom of the base (6). The buffer device (602) is composed of a cylinder (6021), a return spring (6022), and a support column (6023). The bottom of the cylinder (6021) is fixedly connected to the inside of the base (6). The return spring (6022) is fixedly connected inside the cylinder (6021). The support column (6023) is fixedly connected to the upper part of the return spring (6022).

2. The positioning and processing device for offshore wind turbine nacelle structural components according to claim 1, characterized in that: The base (6) includes a dual-axis cylinder (6011). A first piston rod (6012) is movably connected to one side of the dual-axis cylinder (6011), and a second piston rod (6013) is movably connected to the other side of the dual-axis cylinder (6011). A first clamping block (6014) is fixedly connected to the other end of the first piston rod (6012), and a second clamping block (6015) is fixedly connected to the other end of the second piston rod (6013). The bottom of the first clamping block (6014) is fixedly connected to the base plate (6016). The upper surfaces of both sides of the base plate (6016) are provided with sliding grooves (6017). The bottom of the first clamping block (6014) is movably connected to the base plate (6016) through the sliding grooves (6017). The bottom of the second clamping block (6015) is movably connected to the base plate (6016) through the sliding grooves (6017). The bottom of the base plate (6016) is fixedly connected to the inside of the base (6).

3. The positioning and processing device for offshore wind turbine nacelle structural components according to claim 1, characterized in that: The gantry (1) has a first track (101) on one side, and a first slider (102) is movably connected on the first track (101). The gantry (1) has a second track (103) on the other side, and a second slider (104) is movably connected on the second track (103). The gantry (1) has a third track (105) at the bottom, and a third slider (106) is movably connected on the third track (105).

4. The positioning and processing device for offshore wind turbine nacelle structural components according to claim 1, characterized in that: The lower part of the exhaust fan (4) is provided with an air outlet (401). A dust collection hood (402) is fixedly connected to the front of the exhaust fan (4). The upper part of the exhaust fan (4) is fixedly connected to the lower part of the connecting block (403) by screws. The upper part of the connecting block (403) is movably connected to the inside of the second rotating block (404). The upper part of the second rotating block (404) is fixedly connected to the lower part of the stepless adjustment lifting column (405). The upper part of the stepless adjustment lifting column (405) is fixedly connected to the third slider (106).

5. The positioning and processing device for offshore wind turbine nacelle structural components according to claim 3, characterized in that: The first slider (102) is movably connected to the first slide saddle (2), the lower part of the first slide saddle (2) is movably connected to the first rotating block (201) via a rotating shaft, the interior of the first rotating block (201) is movably connected to the adapter block (202), the interior of the adapter block (202) is fixedly connected to the processing head (203) by screws, the middle part of the processing head (203) is fixedly connected to the clamping assembly (204) by screws, the lower part of the clamping assembly (204) is fixedly connected to the clamping block (205) by screws, and the other end of the clamping block (205) is fixedly connected to the guide wire tube (206) by screws.

6. The positioning and processing device for offshore wind turbine nacelle structural components according to claim 3, characterized in that: The second slider (104) is movably connected to the second slide saddle (3), and the lower part of the second slide saddle (3) is fixedly connected to the six-axis robotic arm (301). The other end of the six-axis robotic arm (301) is fixedly connected to the processing component (302).

7. The positioning and processing device for offshore wind turbine nacelle structural components according to claim 1, characterized in that: The lower part of the wheel (603) is fixedly connected to a support foot (6031).

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