An anti-splash outer surface coating machine for the engine nacelle that can automatically locate

Abstract

The present invention discloses a splash-proof outer surface coating machine for engine nacelles capable of automatic positioning, including a machine shell frame, an adaptive self-adjusting mechanism, and a control mechanism. The adaptive self-adjusting mechanism is vertically downwardly disposed on the lower side of the machine shell frame. It operates the side edges of the silicone cover to perform adaptive arc adjustment according to the shape and structure of the engine nacelle, and fully shields to prevent splashing during coating. The control mechanism is disposed directly above the adaptive self-adjusting mechanism, assisting in the adjustment operation of the adaptive self-adjusting mechanism, and operating the automatic positioning or unlocking and resetting after adjustment. This splash-proof outer surface coating machine for engine nacelles capable of automatic positioning realizes applicable automatic flexible adjustment operation according to the specific structural shape of the engine nacelle, solves the problem of incomplete shielding during coating, and additionally performs closed treatment on the coating environment to avoid the phenomenon of paint splashing and spreading in the construction environment during coating.

Description

Technical Field

[0001] The present invention relates to the technical field of nacelle covers, and particularly to a splash-proof nacelle cover outer surface coating machine capable of automatic positioning. Background Technique

[0002] A wind turbine mainly consists of components such as a wind wheel, a power generation device, and an energy storage device. Usually, a nacelle cover is provided outside the core components such as the power generation device and the energy storage device for protection. As the protective outer shell of the entire unit, the reliability of the wind turbine nacelle cover directly determines the stability and service life of the wind turbine operation;

[0003] The wind turbine nacelle cover is usually made of glass fiber reinforced plastic. In order to enhance the reliability of the nacelle cover, during the production and processing process, it is necessary to use a coating device to apply an anti-corrosion coating or a paint coating on the outer surface of the nacelle cover.

[0004] Based on the nacelle cover coating devices used under the background of the existing technology, there are still certain disadvantages. For example:

[0005] 1. When applying the outer surface coating of the existing wind turbine nacelle cover, the coating spray gun is moved automatically by a robotic arm or manually by a human to directly perform the coating operation. However, the coating itself is harmful. Directly using an open coating operation easily causes the coating to splash during the coating process and spread in the construction environment, polluting the working environment and thus affecting the physical health of the operators;

[0006] 2. The structural shapes of the existing wind turbine nacelle covers are generally the same with minor differences according to different design requirements. To ensure the aerodynamic performance of the nacelle cover, it is usually set in a streamlined shape, such as a cylindrical shell type and a box-shaped shell type. However, when dealing with the arc chamfer coating of the streamlined nacelle cover and the box-shaped shell nacelle cover, the splash-proof cover on the existing spray gun is usually a fixed shield, that is, it cannot be automatically adjusted adaptively according to the structural shape of the nacelle cover, and the splash-proof cover is prone to incomplete shielding during coating, resulting in an unsatisfactory splash-proof effect;

[0007] Therefore, we propose a splash-proof nacelle cover outer surface coating machine capable of automatic positioning to solve the problems raised above. Summary of the Invention

[0008] The purpose of the present invention is to provide a splash-proof nacelle cover outer surface coating machine capable of automatic positioning to solve the problems in the above background technique, namely, the direct use of an open coating operation results in splashing and spreading in the construction environment causing pollution, and in addition, the existing fixed splash-proof cover has incomplete shielding during coating, resulting in an unsatisfactory splash-proof effect.

[0009] To achieve the above object, the present invention provides the following technical solutions: A splash-proof cabin cover outer surface coating machine capable of automatic positioning, comprising:

[0010] A machine shell frame, the machine shell frame is fixedly arranged on the execution end of the robot manipulator through the auxiliary fixing of its connecting frame part, and a coating spray head is fixedly installed in the middle of the frame body.

[0011] It further comprises:

[0012] An adaptive self-adjusting mechanism, the adaptive self-adjusting mechanism is arranged vertically downward on the lower side of the machine shell frame, and it operates the side of the silica gel cover to perform adaptive arc adjustment according to the shape structure of the cabin cover, and it performs comprehensive shielding to prevent splashing during coating.

[0013] A control mechanism, the control mechanism is arranged directly above the adaptive self-adjusting mechanism, and it assists in the adjustment operation of the adaptive self-adjusting mechanism, and operates the automatic positioning or unlocking and resetting after adjustment.

[0014] Preferably, the adaptive self-adjusting mechanism is symmetrically arranged front and back with respect to the vertical central axis of the machine shell frame. The adaptive self-adjusting mechanism includes a pipe shell assembly, a piston adjusting rod and a valve plug column assembly. The pipe shell assembly is fixedly arranged on the frame body of the machine shell frame in an integrated structure state. A piston adjusting rod is telescopically slidably connected in the pipe cavity of the vertical pipe body in the pipe shell assembly, and a first spring is installed at the connection between the piston adjusting rod and the vertical pipe body in the pipe shell assembly. A valve plug column assembly is slidably connected in the pipe cavity of the horizontal pipe body in the pipe shell assembly, and a second spring is installed at the connection between the valve head part in the valve plug column assembly and the horizontal pipe body in the pipe shell assembly, and a third spring is installed at the connection between the plug column part in the valve plug column assembly and the horizontal pipe body in the pipe shell assembly.

[0015] Preferably, the upper end pipe orifice of the vertical pipe body in the pipe shell assembly is communicated with the middle pipe cavity of the horizontal pipe body therein, and the middle pipe cavity of the horizontal pipe body in the pipe shell assembly is also communicated with the secondary flow path in the air supply channel, and the air supply channel is opened in the frame wall of the machine shell frame.

[0016] Preferably, an air supply direct port is opened in the middle between the first sealing ring and the second sealing ring in the valve plug column assembly, and a deflation "L"-shaped through port is opened in the middle between the third sealing ring and the fourth sealing ring in the valve plug column assembly.

[0017] Preferably, the upper side wall of the silica gel cover is fixedly connected to the middle frame body of the machine shell frame by bolts, and the lower ends of the left and right side walls of the silica gel cover are respectively fixedly connected to the left and right two cover plate parts of the machine shell frame by bolts, and the connection seats of the front and rear side walls of the silica gel cover are respectively fixedly connected to the lower ends of the front and rear two piston adjusting rods by bolts.

[0018] Among them, a dust suction hood is fixedly installed on the cover plate part of the casing frame through bolts.

[0019] Preferably, the control mechanism includes a housing part, a linkage plate, a driving block and an unlocking plate. The housing part is fixedly connected to the frame body of the casing frame through bolts. The linkage plates are rotatably connected at equal intervals from left to right in the cavity of the housing part, and a torsion spring is installed at the connection between the linkage plate and the housing part. Moreover, the lower end of the linkage plate is connected to the valve head part in the valve plug column assembly in a sliding manner.

[0020] Among them, a driving block is arranged directly below the pressing plate part of the linkage plate, and an unlocking plate is arranged directly above the pressing plate part of the linkage plate.

[0021] Preferably, inclined side walls are arranged on both the left and right sides of the upper end of the driving block, and the driving block forms a sliding structure on the cavity wall of the housing part. The driving block is connected to the pressing plate part of the linkage plate in a pressing and fitting manner.

[0022] Preferably, a lead screw is threadedly connected to the middle of the lower end of the driving block. The lead screw forms a rotating structure on the cavity wall of the housing part with the assistance of bearings. Moreover, the left end of the lead screw is fixedly clamped to the output end of the servo motor, and the servo motor is fixedly installed on the outer wall of the housing part through bolts.

[0023] Preferably, the unlocking plate forms a sliding structure on the cavity wall of the housing part, and a fourth spring is installed at the connection between the unlocking plate and the housing part. The longitudinal plate body in the unlocking plate is connected to the pressing plate part of the linkage plate in a pressing and fitting manner.

[0024] Among them, an "L"-shaped frame is slidably connected in the groove cavity of the unlocking plate. The longitudinal frame body in the "L"-shaped frame is arranged in a corresponding state with the driving block, and pushing parts with an integrated structure are arranged at equal intervals on the transverse frame body in the "L"-shaped frame.

[0025] Preferably, pushing parts with an integrated structure are arranged at equal intervals in the groove cavity of the unlocking plate, and the inclined side walls of the pushing parts in the unlocking plate are pressed and fitted against the inclined side walls of the pushing parts in the "L"-shaped frame.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: The automatic positioning anti-splash cabin cover outer surface coating machine can realize automatic flexible adjustment operation of applicability according to the specific structural shape of the cabin cover, solve the problem of incomplete shielding during coating. In addition, the coating environment is enclosed, effectively avoiding the phenomenon that the coating splashes and spreads in the construction environment during coating.

[0027] 1. An adaptive self-adjusting mechanism and a silica gel cover are provided. The adaptive self-adjusting mechanism is placed between the left and right cover plate parts in the machine shell frame, and is arranged in a front-back symmetric state. After the silica gel cover is installed, it is inserted and embedded in the frame formed by the combination of the front and rear adaptive self-adjusting mechanisms and the left and right cover plate parts in the machine shell frame, and it covers the coating spray head in its cover cavity, realizing a closed treatment of the coating environment, different from the traditional direct open coating operation, effectively avoiding the phenomenon of paint splashing and spreading in the construction environment during coating, thus avoiding polluting the working environment and reducing the harm to the operators;

[0028] Furthermore, after the silica gel cover is installed, the upper side cover wall, the left and right side cover walls, and the front and rear side cover walls are respectively fixedly connected to the middle frame body of the machine shell frame, the left and right cover plate parts in the machine shell frame, and the front and rear piston adjusting rods through bolts, making the silica gel cover set in a detachable structural state, realizing the replacement operation of the silica gel cover, avoiding excessive adhesion and accumulation of paint in its cover wall and affecting the subsequent coating effect. In addition, dust suction covers are arranged on the left and right cover plate parts in the machine shell frame. When the silica gel cover covers and blocks the splashing and diffusing paint, it can suck and collect the overflowing paint, that is, the covering of the silica gel cover limits the diffusion range of the paint, and then guides the dust suction cover to suck;

[0029] Furthermore, after the valve plug column assembly is driven to slide in the horizontal tube body of the tube shell assembly, the air supply straight-through port in it makes the air supply channel communicate with the vertical tube body in the tube shell assembly. Through the air supply operation of the air supply channel, the piston adjusting rod is driven to extend and slide in the vertical tube body, and the extended lengths of multiple piston adjusting rods are adjusted in sequence to perform the arc adjustment operation on the side of the silica gel cover, enabling the coating machine to realize the applicable automatic flexible adjustment operation according to the specific structural shape of the engine nacelle cover, effectively solving the problem of incomplete shielding during coating, avoiding the splashing and diffusion of paint during coating, different from the traditional fixed shield, with a more comprehensive and perfect protection effect and a wider range of use;

[0030] 2. A valve plug column assembly and a linkage plate are provided. After the driving block slides and loses the extrusion on the linkage plate, the linkage plate uses the elastic deformation of the torsion spring to reset, and also uses the elastic deformation of the second spring to reset, driving the valve plug column assembly to perform a reset slide, blocking the communication between the air supply channel and the vertical tube body in the tube shell assembly, that is, cutting off the air supply operation of the vertical tube body, so that the gas in the vertical tube body continuously pushes the piston adjusting rod, realizing the automatic positioning and locking after the piston adjusting rod slides and adjusts, maintaining the positioning in the adjusted state. In addition, through the automated adjustment operation, the operation convenience is ensured, and the synchronous automatic adjustment operation can also be realized during the coating process;

[0031] Furthermore, the driving block pushes the longitudinal plate body in the "L"-shaped frame. Through the mutual cooperation between the pushing part in the "L"-shaped frame and the pushing part in the unlocking plate, the unlocking plate is driven to slide and push the linkage plate. After the linkage plate drives the valve plug column assembly to move synchronously, the valve plug column assembly is driven to slide, so that the air leakage "L"-shaped through port in the valve plug column assembly is placed at the connection between the air supply channel and the vertical pipe body in the pipe shell assembly, realizing the synchronous air leakage operation of multiple vertical pipe bodies, that is, realizing the automatic unlocking and reset operation, ensuring the reset speed and being easy to quickly cooperate with the next adjustment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view three-dimensional structure schematic diagram of the present invention;

[0033] Figure 2 It is a front view structure schematic diagram of the present invention;

[0034] Figure 3 It is a side view sectional three-dimensional structure schematic diagram of the adaptive self-adjusting mechanism of the present invention;

[0035] Figure 4 It is a side view sectional three-dimensional structure schematic diagram of the connection between the pipe shell assembly and the piston adjusting rod of the present invention;

[0036] Figure 5 It is a front view sectional structure schematic diagram of the connection between the pipe shell assembly and the air supply channel of the present invention;

[0037] Figure 6 It is a side view sectional three-dimensional structure schematic diagram of the connection between the pipe shell assembly and the valve plug column assembly of the present invention;

[0038] Figure 7 It is a bottom view sectional three-dimensional structure schematic diagram of the connection between the machine shell frame and the silica gel cover of the present invention;

[0039] Figure 8 It is a side view sectional three-dimensional structure schematic diagram of the control mechanism of the present invention;

[0040] Figure 9 It is a side view sectional three-dimensional structure schematic diagram of the connection between the outer shell part and the linkage plate of the present invention;

[0041] Figure 10 It is a side view three-dimensional structure schematic diagram of the connection between the valve plug column assembly and the linkage plate of the present invention;

[0042] Figure 11 It is a front view sectional three-dimensional structure schematic diagram of the connection between the outer shell part and the driving block of the present invention;

[0043] Figure 12 It is a front view sectional three-dimensional structure schematic diagram of the separation of the unlocking plate and the "L"-shaped frame of the present invention.

[0044] In the figure: 1, housing frame; 2, coating spray head; 3, adaptive self-adjusting mechanism; 4, silica gel cover; 5, control mechanism; 6, tube shell assembly; 7, piston adjusting rod; 8, first spring; 9, valve plug column assembly; 10, second spring; 11, third spring; 12, air supply channel; 13, dust suction hood; 14, outer shell part; 15, linkage plate; 16, torsion spring; 17, drive block; 18, unlocking plate; 19, lead screw; 20, servo motor; 21, fourth spring; 22, "L"-shaped frame. Specific implementation mode

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0046] Please refer to Figures 1-12 , the present invention provides a technical solution: a splash-proof outer surface coating machine for an engine nacelle capable of automatic positioning, including a housing frame 1, and further including an adaptive self-adjusting mechanism 3 and a control mechanism 5.

[0047] When the splash-proof outer surface coating machine for an engine nacelle capable of automatic positioning is in use, the adaptive self-adjusting mechanism 3 is vertically downwardly arranged on the lower side of the housing frame 1, and is symmetrically arranged before and after with respect to the vertical central axis of the housing frame 1. The control mechanism 5 is arranged directly above the adaptive self-adjusting mechanism 3. After the front and rear control mechanisms 5 are arranged, they are respectively fixed on the front and rear side frames of the housing frame 1. According to the structural shape of the engine nacelle, the control mechanism 5 is used to automatically adjust the adaptive self-adjusting mechanism 3, and an adaptive arc adjustment operation is performed on the side edges of the front and rear cover walls of the silica gel cover 4. After adjustment, the control mechanism 5 is used to automatically position and lock it. Then, the coated position of the engine nacelle is covered and blocked by the adjusted silica gel cover 4 to prevent splashing during coating, and the coating operation is performed through the coating spray head 2;

[0048] When operating the automatic adjustment of the adaptive self-adjusting mechanism 3, specifically, according to the attached Figure 1 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, after the servo motor 20 is installed, it is fixed to the outer wall of the housing part 14 by bolts and is horizontally arranged. It is externally connected to a power source through wires. Since the output end of the servo motor 20 is inserted into the cavity of the groove on the wall of the housing part 14 after installation and is fixedly clamped together with the left end of the lead screw 19, and since a wedge-shaped sliding groove is provided on the cavity wall of the housing part 14, bearings are fixedly clamped at both the left and right ends of the lead screw 19. After installation, it is placed in the cavity of the wedge-shaped sliding groove in the housing part 14 and is horizontally arranged, and its left and right ends are respectively clamped to the two side walls of the housing part 14 with the bearings. Start the servo motor 20 to operate, so that the lead screw 19 rotates on the cavity wall of the housing part 14 with the assistance of the bearings;

[0049] Since the lower end of the driving block 17 is arranged in a wedge-shaped structure, after installation, its lower end is movably clamped in the wedge-shaped sliding groove in the housing part 14 and is positioned in a movable state on the cavity wall of the housing part 14. Also, since the middle part of the lower end of the driving block 17 is connected to the lead screw 19 in a penetrating manner and the two are threadedly connected together, when the lead screw 19 rotates, it drives the driving block 17 to slide on the cavity wall of the housing part 14;

[0050] Since the upper end of the linkage plate 15 is inclined with an integrally formed pressing plate part, the driving block 17 is arranged directly below the pressing plate part in the linkage plate 15 and is connected to the pressing plate part in the linkage plate 15 in a pressing and fitting manner. Also, since inclined side walls are provided on both the left and right sides of the upper end of the driving block 17, through the setting of the inclined side walls on both sides, the driving block 17 is not blocked or restricted during reciprocating sliding, that is, it can push and squeeze the pressing plate part of the linkage plate 15. After the driving block 17 is driven to slide, with the assistance of its inclined side walls, it contacts the pressing plate part of the linkage plate 15 and pushes the pressing plate part upward;

[0051] Since a shaft column is rotatably connected to the upper end of the linkage plate 15, after installation, it is movably clamped in the cavity groove of the housing part 14, and the shaft column is fixedly inserted into the wall of the housing, so that the linkage plate 15 is positioned in a movable state in the cavity of the housing part 14 and forms a rotating structure with the assistance of the shaft column. Also, since the housing part 14 is fixedly connected to the frame of the machine housing frame 1 by bolts after installation and covers the outside of the horizontal pipe body in the pipe shell assembly 6. Furthermore, since a torsion spring 16 is installed at the connection between the linkage plate 15 and the housing part 14, the torsion spring 16 is movably sleeved on the shaft column in the linkage plate 15 after installation, one end of it is clamped to the plate body of the linkage plate 15, and the other end is clamped to the cavity wall of the housing part 14. After the pressing plate part in the linkage plate 15 is pushed upward, the linkage plate 15 flips inward in the cavity of the housing part 14 and causes the torsion spring 16 to be elastically deformed under extrusion;

[0052] Since the valve plug column assembly 9 is divided into three parts, namely a valve head part, a valve stem part, and a plug column part, in sequence from the outward direction to the inward direction, where the valve head part is sleeved and fixedly connected to the outer end of the valve stem part by bolts, and they are arranged on the same horizontal central axis. Moreover, pin columns are vertically fixed on both the left and right sides of the valve head part. Also, since through slots are formed on the left and right side walls of the lower slot of the linkage plate 15, after installation, the valve head part of the valve plug column assembly 9 is movably clamped in the lower slot of the linkage plate 15, and the left and right pin columns of the valve head part in the valve plug column assembly 9 are respectively movably inserted into the left and right slots at the lower end of the linkage plate 15, and they are connected in a sliding manner. After the linkage plate 15 is flipped inward, it pushes the valve plug column assembly 9 to move inward;

[0053] According to the attachment Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 8 shown, the shell assembly 6 is composed of two parts, a vertical pipe body and a horizontal pipe body, where the vertical pipe body and the horizontal pipe body are arranged perpendicular to each other. A third end cover for limiting is fixedly connected to the outer end of the horizontal pipe body in the shell assembly 6 by threads. Since the inner end of the valve stem part in the valve plug column assembly 9 is fixed on the plug column part and is arranged in an integrated structure, and they are arranged on the same horizontal central axis. Moreover, the longitudinal section of the valve stem part in the valve plug column assembly 9 is in a square structure. After the valve plug column assembly 9 is installed, the plug column part is movably inserted into the lumen of the horizontal pipe body in the shell assembly 6, and the valve stem part passes through the third end cover in the shell assembly 6 and extends outward, so that the valve plug column assembly 9 is positioned in a movable state in the lumen of the horizontal pipe body in the shell assembly 6, and the valve head part is placed outside the horizontal pipe body in the shell assembly 6. When the valve plug column assembly 9 is driven to move inward, the valve plug column assembly 9 contracts and slides in the lumen of the horizontal pipe body in the shell assembly 6;

[0054] Since a second spring 10 is installed at the connection between the valve head part in the valve plug column assembly 9 and the horizontal pipe body in the shell assembly 6, after the second spring 10 is installed, it is movably sleeved on the outer section of the valve stem part in the valve plug column assembly 9. One end of it abuts against the outer cover wall of the third end cover in the shell assembly 6, and the other end abuts against the cavity of the valve head part in the valve plug column assembly 9. After the valve plug column assembly 9 contracts and slides, the second spring 10 is squeezed and undergoes elastic deformation;

[0055] Since in the valve plug column assembly 9, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are fixedly clamped at equal intervals in sequence from the outer direction to the inner direction on the plug column part, the first to fourth sealing rings in the plug column part are all in contact with the inner wall of the lumen of the transverse pipe body, the distance between adjacent two sealing rings is the same, and the distance between adjacent two sealing rings is greater than the diameter of the upper end opening of the vertical pipe body in the pipe shell assembly 6. Also, since an air supply direct port is opened at the middle between the first sealing ring and the second sealing ring in the valve plug column assembly 9. Further, since the air supply channel 12 is opened in the wall of the machine shell frame 1 and is composed of two parts, namely the main flow channel and the sub-flow channel, the diameter of the orifice of the sub-flow channel is the same as the diameter of the upper end opening of the vertical pipe body in the pipe shell assembly 6. The upper end opening of the vertical pipe body in the pipe shell assembly 6 is communicated with the middle lumen of its transverse pipe body, and the middle lumen of the transverse pipe body in the pipe shell assembly 6 is also communicated with the sub-flow channel in the air supply channel 12. When the valve plug column assembly 9 is in the initial state, the middle section of its plug column part corresponds to the connection part between the sub-flow channel in the air supply channel 12 and the vertical pipe body in the pipe shell assembly 6, that is, the connection part between the sub-flow channel and the vertical pipe body corresponds to the position between the second sealing ring and the third sealing ring to seal and block the connection part. After the valve plug column assembly 9 contracts and slides, the connection part between the sub-flow channel and the vertical pipe body corresponds to the position between the first sealing ring and the second sealing ring, that is, the air supply direct port in the valve plug column assembly 9 is used to connect the sub-flow channel and the vertical pipe body. The main flow channel in the air supply channel 12 is externally connected to an air supply device through a hose (the above air supply device is prior art and is not described in the specification drawings), and air supply treatment is carried out into the vertical pipe body in the pipe shell assembly 6 through the air supply channel 12;

[0056] Since the pipe shell assembly 6 is fixedly arranged on the frame of the machine shell frame 1 in an integrated structure state, a first end cover for limiting is fixedly connected by thread at the lower end of the vertical pipe body in the pipe shell assembly 6. Also, since the upper end of the piston adjusting rod 7 is a plug head part, a sealing rubber ring is fixedly clamped on the plug head part. After the piston adjusting rod 7 is arranged, the plug head part thereof is movably inserted into the lumen of the vertical pipe body in the pipe shell assembly 6, the sealing rubber ring of the plug head part is in contact with the inner wall of the lumen of the vertical pipe body, and the lower end pipe body thereof movably penetrates through the first end cover in the pipe shell assembly 6 and extends outwards. After the vertical pipe body in the pipe shell assembly 6 is inflated, the plug head part in the piston adjusting rod 7 is pushed, so that the piston adjusting rod 7 slides and extends out in the lumen of the vertical pipe body in the pipe shell assembly 6;

[0057] Since a first spring 8 is installed at the connection part between the piston adjusting rod 7 and the vertical pipe body in the pipe shell assembly 6, the first spring 8 is movably sleeved on the rod body of the piston adjusting rod 7 after being arranged, one end of it abuts against the inner cavity of the groove of the plug head part in the piston adjusting rod 7, and the other end of it abuts against the inner cavity of the groove of the first end cover in the pipe shell assembly 6. After the piston adjusting rod 7 slides and extends out, the first spring 8 is squeezed and undergoes elastic deformation;

[0058] Since the material property of the silica gel cover 4 is set to be flexible and elastic, it can cooperate with the adjustment operation. Integrated connection seats are provided at the lower ends of the front and rear side walls of the silica gel cover 4. Also, since the lower end of the piston adjusting rod 7 is inserted and fixedly connected to the connection seat in the silica gel cover 4 by bolts, after the piston adjusting rod 7 slides out, it drives the side edges of the cover wall of the silica gel cover 4 to move and deform;

[0059] When the driving block 17 continues to slide and loses contact with the pressing plate part in the linkage plate 15, it loses the pushing effect on the pressing plate part. Using the elastic deformation reset of the torsion spring 16, it drives the linkage plate 15 to reset and flip in the housing cavity of the housing part 14, and through the elastic deformation reset of the second spring 10, it pulls the valve plug column assembly 9 to reset and slide horizontally in the horizontal tube body of the tube housing assembly 6, so that the valve plug column assembly 9 returns to the initial state, and the plug column part in the valve plug column assembly 9 seals the communication between the sub-flow channel in the air supply channel 12 and the vertical tube body of the tube housing assembly 6 again, that is, cuts off and seals the gas in the vertical tube body of the tube housing assembly 6. Through the elastic support of the first spring 8, the piston adjusting rod 7 completes the automatic positioning after adjustment;

[0060] According to the attachment Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 7 and Figure 8 As shown in, based on the above, linkage plates 15 are arranged at equal intervals from left to right in the housing cavity of the housing part 14. Each linkage plate 15 is correspondingly arranged with each valve plug column assembly 9. The distance between the pressing plate parts of two adjacent linkage plates 15 is greater than the width dimension of the driving block 17. During the sliding of the driving block 17, each linkage plate 15 is driven in sequence, that is, the intermittent control of each valve plug column assembly 9 is completed. Since the horizontal tube bodies in the tube housing assembly 6 are arranged at equal intervals in a horizontal and forward state from left to right, the sub-flow channels in the air supply channel 12 are arranged at equal intervals on the main flow channel, each sub-flow channel is correspondingly arranged with each horizontal tube body in the tube housing assembly 6, and the vertical tube bodies in the tube housing assembly 6 are arranged at equal intervals in a fan-shaped downward state from left to right, and the piston adjusting rods 7 distributed in a fan shape are adjusted to extend in sequence;

[0061] Since the connecting seats in the silica gel cover 4 are arranged at equal intervals on its cover wall, and each connecting seat corresponds to each piston adjusting rod 7 respectively, the connecting seats on the front and rear cover walls of the silica gel cover 4 are fixedly connected to the lower ends of the front and rear piston adjusting rods 7 by bolts respectively. Also, since the cover plate parts with an integrated structure are inclined downward on both the left and right sides of the machine shell frame 1, and the left and right cover plate parts are arranged in a "V" shape, the adaptive self-adjusting mechanism 3 is placed between the left and right cover plate parts in the machine shell frame 1 after installation. The front and rear adaptive self-adjusting mechanisms 3 and the left and right cover plate parts are combined to form a frame-like structure. After the silica gel cover 4 is installed, it is inserted and embedded in the frame formed by the combination of the adaptive self-adjusting mechanism 3 and the machine shell frame 1. Its upper cover wall is fixedly connected to the middle frame of the machine shell frame 1 by bolts, and the lower ends of the left and right cover walls are fixedly connected to the left and right cover plate parts in the machine shell frame 1 by bolts respectively, being set in a detachable structural state. After the piston adjusting rods 7 are extended and adjusted in sequence, the arc of the side wall of the silica gel cover 4 is adjusted, which is adapted to the structural shape of the engine hood. In addition, during the use of this coating machine, the side wall of the silica gel cover 4 can also be freely adjusted in real time;

[0062] Since the connecting frame parts with an integrated structure are vertically upward arranged on both the front and rear sides of the machine shell frame 1, and are fixedly installed on the execution end of the robot manipulator through the auxiliary fixation of the connecting frame parts. After the silica gel cover 4 is installed, the through groove in the middle of its upper cover wall corresponds to the through groove in the middle of the frame of the machine shell frame 1. After the coating nozzle 2 is installed, it is clamped in the through groove in the middle of the frame of the machine shell frame 1, passes through the through groove in the middle of the upper cover wall of the silica gel cover 4 and extends into the cover cavity, being set in a horizontal state, and is fixedly connected to the middle of the frame of the machine shell frame 1 by bolts. Also, since the coating nozzle 2 is externally connected to the coating supply device through a hose (the above coating supply device is a prior art and is not described in the specification drawings), the robot manipulator is started to move this coating machine to the coating position of the engine hood, so that the silica gel cover 4 covers and shields the coating position, and the coating operation is carried out through the coating nozzle 2, and the silica gel cover 4 is used to prevent the coating from splashing and spreading. Moreover, since the dust suction covers 13 are fixedly installed on the left and right cover plate parts in the machine shell frame 1 by bolts, the openings of the dust suction covers 13 are set downward, and are externally connected to the dust suction device through a hose (the above dust suction device is a prior art and is not described in the specification drawings). During the coating process, the dust suction covers 13 are used to suck and collect the dispersed and overflowed coating;

[0063] When the operation control mechanism 5 unlocks and resets the adaptive self-adjusting mechanism 3, specifically, according to the attachment Figure 3 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 11 and Figure 12As shown, the longitudinal section of the horizontal frame body in the "L"-shaped frame 22 is arranged in a "convex" shape. After installation, the horizontal frame body is movably clamped on the cavity wall of the outer shell member 14, so that it is in an active state and positioned in the cavity of the outer shell member 14. Since the longitudinal frame body in the "L"-shaped frame 22 is arranged corresponding to the driving block 17, after the driving block 17 completes the driving of all the linkage plates 15, it continuously slides and contacts the longitudinal frame body in the "L"-shaped frame 22, pushing the "L"-shaped frame 22 to slide on the cavity wall of the outer shell member 14;

[0064] Since the pushing parts with an integrated structure are arranged at equal intervals on the horizontal frame body in the "L"-shaped frame 22, and the pushing parts are provided with inclined side walls. After the "L"-shaped frame 22 is installed, the pushing parts are movably inserted into the groove cavity of the unlocking plate 18. Also, since the pushing parts with an integrated structure are arranged at equal intervals in the groove cavity of the unlocking plate 18, and the pushing parts are provided with inclined side walls, and the inclined side walls of the pushing parts are pressed and fitted against the inclined side walls of the pushing parts in the "L"-shaped frame 22. After the "L"-shaped frame 22 is driven to slide, through the cooperation between the pushing parts on the two, the "L"-shaped frame 22 slides in the groove cavity of the unlocking plate 18, pushing the unlocking plate 18 to move;

[0065] Since the longitudinal section of the unlocking plate 18 is arranged in a "T" shape, after installation, it is movably clamped on the cavity wall of the outer shell member 14 and is in an active state and positioned in the cavity of the outer shell member 14. Also, since a fourth spring 21 is installed at the connection between the unlocking plate 18 and the outer shell member 14, the fourth spring 21 is arranged at equal intervals on the transverse plate body of the unlocking plate 18 and is symmetrically arranged about the horizontal middle bearing of the unlocking plate 18. One end of it is pressed against the transverse plate body of the unlocking plate 18, and the other end of it is pressed against the cavity wall of the outer shell member 14. The unlocking plate 18 is pushed to slide on the cavity wall of the outer shell member 14, causing the fourth spring 21 to be elastically deformed by extrusion. After the fourth spring 21 restores its elastic deformation, it assists the unlocking plate 18 to reset and slide;

[0066] Since the unlocking plate 18 is arranged directly above the pressing plate part in the linkage plate 15, the length dimension of the unlocking plate 18 is greater than the sum of the distances between the pressing plate parts in the multiple linkage plates 15. The longitudinal plate body is connected to the pressing plate part in the linkage plate 15 in a pressing and fitting manner. After the unlocking plate 18 is driven to slide and contacts the pressing plate part in the linkage plate 15, it pushes the pressing plate part downward, causing the linkage plate 15 to flip outward in the cavity of the outer shell member 14 and causing the torsion spring 16 to be elastically deformed by extrusion;

[0067] Since a third spring 11 is installed at the connection between the plug column part in the valve plug column assembly 9 and the horizontal pipe body in the pipe shell assembly 6, positioning rings with an integrated structure are fixedly connected to both ends of the third spring 11. After the third spring 11 is installed, it is movably sleeved on the inner section of the valve stem part in the valve plug column assembly 9. One of its positioning rings is fixedly connected to the cover cavity wall of the third end cover in the pipe shell assembly 6 through bolts, and the other positioning ring is connected to the plug column part in the valve plug column assembly 9 in a pressing and fitting manner. After the linkage plate 15 flips outward, it pulls the valve plug column assembly 9 to move outward, causing the valve plug column assembly 9 to slide out in the lumen of the horizontal pipe body in the pipe shell assembly 6, and causing the third spring 11 to be elastically deformed by extrusion. After the third spring 11 restores its elastic deformation, it assists the valve plug column assembly 9 to reset and slide.

[0068] Since a venting "L"-shaped opening is provided in the middle between the third sealing ring and the fourth sealing ring in the valve plug column assembly 9, after the valve plug column assembly 9 slides out, the connection between the sub-flow channel and the vertical pipe body corresponds to the position between the third sealing ring and the fourth sealing ring, that is, the sub-flow channel and the vertical pipe body are connected through the venting "L"-shaped opening in the valve plug column assembly 9. At this time, the valve plug column assembly 9 cuts off the air supply operation of the air supply channel 12. Also, since the inner end of the horizontal pipe body in the pipe shell assembly 6 is threadedly fixed with a second end cover for plugging, and through holes are equally spaced on the second end cover to assist in the exhaust operation. The horizontal channel of the venting "L"-shaped opening in the valve plug column assembly 9 corresponds to the third end cover in the pipe shell assembly 6, so that the gas in the vertical pipe body in the pipe shell assembly 6 passes through the venting "L"-shaped opening and is discharged through the second end cover. Using the elastic deformation of the first spring 8 to reset, all the piston adjusting rods 7 are synchronously unlocked and reset. When readjusting the piston adjusting rods 7, first stop the air supply through the air supply channel 12 to drive the driving block 17 to reset and slide to its initial position.

[0069] This is the entire working process of the anti-splash outer surface coating machine for the engine hood that can be automatically positioned. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0070] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be elaborated here.

[0071] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A splash-proof outer surface coating machine for engine hoods capable of automatic positioning, comprising: A housing frame (1), the housing frame (1) is fixedly arranged on the execution end of the robot manipulator through the auxiliary fixing of its connecting frame part, and a coating nozzle (2) is fixedly installed in the middle of the frame body; It is characterized in that it further comprises: An adaptive self-adjusting mechanism (3), the adaptive self-adjusting mechanism (3) is arranged vertically downward on the lower side of the housing frame (1), and it operates the side edges of the silica gel cover (4) to perform adaptive arc adjustment according to the shape structure of the engine hood, and it fully blocks to prevent splashing during coating; Among them, the adaptive self-adjusting mechanism (3) is symmetrically arranged front and back with respect to the vertical central axis of the housing frame (1). The adaptive self-adjusting mechanism (3) includes a pipe shell assembly (6), a piston adjusting rod (7) and a valve plug column assembly (9). The pipe shell assembly (6) is fixedly arranged on the frame body of the housing frame (1) in an integrated structure state. A piston adjusting rod (7) is telescopically and slidably connected in the pipe cavity of the vertical pipe body in the pipe shell assembly (6), and a first spring (8) is installed at the connection between the piston adjusting rod (7) and the vertical pipe body in the pipe shell assembly (6). A valve plug column assembly (9) is slidably connected in the pipe cavity of the horizontal pipe body in the pipe shell assembly (6), and a second spring (10) is installed at the connection between the valve head part in the valve plug column assembly (9) and the horizontal pipe body in the pipe shell assembly (6), and a third spring (11) is installed at the connection between the plug column part in the valve plug column assembly (9) and the horizontal pipe body in the pipe shell assembly (6); Among them, a dust suction hood (13) is fixedly installed on the cover plate part of the housing frame (1) by bolts; Among them, an air supply direct port is opened in the middle between the first sealing ring and the second sealing ring in the valve plug column assembly (9), and a deflating "L"-shaped through port is opened in the middle between the third sealing ring and the fourth sealing ring in the valve plug column assembly (9); A control mechanism (5), the control mechanism (5) is arranged directly above the adaptive self-adjusting mechanism (3), and it assists in the adjustment operation of the adaptive self-adjusting mechanism (3), and operates the automatic positioning after adjustment or the unlocking and resetting after adjustment; Among them, the control mechanism (5) includes a housing part (14), a linkage plate (15), a driving block (17) and an unlocking plate (18). The housing part (14) is fixedly connected to the frame body of the housing frame (1) by bolts. A linkage plate (15) is rotatably connected at equal intervals from left to right in the cavity of the housing part (14), and a torsion spring (16) is installed at the connection between the linkage plate (15) and the housing part (14), and the lower end of the linkage plate (15) is connected to the valve head part in the valve plug column assembly (9) in a sliding manner; Among them, a driving block (17) is arranged directly below the pressing plate part of the linkage plate (15), and an unlocking plate (18) is arranged directly above the pressing plate part of the linkage plate (15); Among them, the unlocking plate (18) forms a sliding structure on the cavity wall of the outer shell member (14), and a fourth spring (21) is installed at the connection between the unlocking plate (18) and the outer shell member (14). The longitudinal plate body in the unlocking plate (18) is connected to the pressing plate part in the linkage plate (15) in a pressing and fitting manner; Among them, an "L"-shaped frame (22) is slidably connected in the groove cavity of the unlocking plate (18), and the longitudinal frame body in the "L"-shaped frame (22) is arranged in a corresponding state with the driving block (17). And push-pressing parts with an integrated structure are equidistantly arranged on the transverse frame body in the "L"-shaped frame (22).

2. The automatic positioning anti-splash outer surface coating machine for engine nacelles according to claim 1, characterized in that: The upper end pipe orifice of the vertical pipe body in the pipe shell assembly (6) is communicated with the middle pipe cavity of the transverse pipe body therein. And the middle pipe cavity of the transverse pipe body in the pipe shell assembly (6) is also communicated with the secondary flow channel in the air supply channel (12). And the air supply channel (12) is opened in the frame wall of the machine shell frame (1).

3. The automatic positioning anti-splash type outer surface coating machine for engine nacelles according to claim 1, characterized in that: The upper side cover wall of the silica gel cover (4) is fixedly connected to the middle frame body of the machine shell frame (1) by bolts. And the lower ends of the left and right side cover walls in the silica gel cover (4) are respectively fixedly connected to the left and right two cover plate parts in the machine shell frame (1) by bolts. And the connecting seats of the front and rear side cover walls in the silica gel cover (4) are respectively fixedly connected to the lower ends of the front and rear two piston adjusting rods (7) by bolts.

4. The automatic positioning anti-splash outer surface coating machine for engine nacelles according to claim 1, characterized in that: Inclined side walls are arranged on both the left and right sides of the upper end of the driving block (17). And the driving block (17) forms a sliding structure on the cavity wall of the outer shell member (14). The driving block (17) is connected to the pressing plate part in the linkage plate (15) in a pressing and fitting manner.

5. The automatic positioning anti-splash outer surface coating machine for engine nacelles according to claim 4, characterized in that: A lead screw (19) is threadedly connected to the middle part of the lower end of the driving block (17). And the lead screw (19) forms a rotating structure on the cavity wall of the outer shell member (14) with the assistance of a bearing. And the left end of the lead screw (19) is fixedly clamped to the output end of the servo motor (20). And the servo motor (20) is fixedly installed on the outer shell wall of the outer shell member (14) by bolts.

6. The automatic positioning anti-splash outer surface coating machine for the engine nacelle according to claim 1, characterized in that: Push-pressing parts with an integrated structure are equidistantly arranged in the groove cavity of the unlocking plate (18). And the inclined side walls of the push-pressing parts in the unlocking plate (18) are pressed and fitted against the inclined side walls of the push-pressing parts in the "L"-shaped frame (22).

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