CN116618907B

CN116618907B - Welding device for ferris wheel of aero-engine blade

Info

Publication number: CN116618907B
Application number: CN202310897108.4A
Authority: CN
Inventors: 王朝琴; 陈小东; 王小荣; 何鹏; 罗冠炜
Original assignee: Lanzhou Jiaotong University
Current assignee: Lanzhou Jiaotong University
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2023-09-15
Anticipated expiration: 2043-07-21
Also published as: CN116618907A

Abstract

The application discloses an aircraft engine blade ferris wheel welding device which comprises a clamping robot, a first conveyor belt, a blade ferris wheel assembly, a second conveyor belt, a welding robot and a cooling sand circulation assembly which are sequentially arranged at intervals along a first direction. Wherein the periphery of blade ferris wheel assembly is provided with a plurality of moulds that are used for placing aeroengine blade, and first conveyer belt, second conveyer belt and blade ferris wheel assembly all extend along the second direction and arrange, and first conveyer belt conveying does not weld aeroengine blade, and the aeroengine blade after the second conveyer belt conveying welding to first direction and second direction are perpendicular. According to the welding device for the aircraft engine blade ferris wheel, disclosed by the application, the aircraft engine blade ferris wheel which is formed by the clamping robot, the first conveyor belt, the blade ferris wheel assembly, the second conveyor belt, the welding robot and the cooling sand circulation assembly is arranged, so that the aircraft engine blade can be efficiently and quickly welded.

Description

Welding device for ferris wheel of aero-engine blade

Technical Field

The application belongs to the technical field of welding, and particularly relates to a welding device for a ferris wheel of an aero-engine blade.

Background

In the prior art, compared with the requirement of a common welding process, the precision of welding of the aero-engine blade is higher, and generally, the welding is required to be performed under a high-precision environment, so that one blade and one blade are often required to be welded in the welding process, and the problems of low welding efficiency and poor welding stability exist when the welding is performed in the mode, for example, the Chinese patent with publication number of CN110293342B discloses a welding combined turntable device and a vacuum chamber adopting the welding combined turntable device, and the welding combined turntable device discloses a high-precision and high-quality environment, but the problem of low welding efficiency of the aero-engine blade in the welding process cannot be solved.

Disclosure of Invention

The invention aims to solve the problem of low welding efficiency of an aero-engine blade in the welding process in the prior art.

In order to solve the technical problems, one embodiment of the invention discloses an aircraft engine blade ferris wheel welding device which comprises a clamping robot, a first conveyor belt, a blade ferris wheel assembly, a second conveyor belt, a welding robot and a cooling sand circulation assembly, wherein the clamping robot, the first conveyor belt, the blade ferris wheel assembly, the second conveyor belt, the welding robot and the cooling sand circulation assembly are sequentially arranged at intervals along a first direction.

The clamping robot is provided with a clamping mechanical arm capable of moving and turning; the first conveyor belt is positioned at one side of the clamping robot and extends along a second direction perpendicular to the first direction; the blade ferris wheel assembly is arranged between the first conveyor belt and the second conveyor belt, the welding robot is positioned on one side, far away from the blade ferris wheel assembly, of the second conveyor belt, the welding robot is provided with a welding mechanical arm capable of moving and steering, and the cooling sand circulation assembly is positioned on one side, far away from the blade ferris wheel assembly, of the second conveyor belt.

The periphery of blade ferris wheel assembly is provided with a plurality of moulds that are used for placing aeroengine blade, and blade ferris wheel assembly rotates to drive mould and aeroengine blade and rotate, and first conveyer belt, second conveyer belt and blade ferris wheel assembly all extend along the second direction and arrange, convey the welding-free aeroengine blade on the first conveyer belt, and the second conveyer belt conveys the aeroengine blade after accomplishing the welding. Regarding the rotation of the blade ferris wheel assembly and driving the mold and the rotation of the aeroengine blade can be understood as: the blade ferris wheel assembly rotates and then drives the mould and the aero-engine blade to rotate, so that the relative positions of the mould and the aero-engine blade are changed.

According to the technical scheme, the aircraft engine blade ferris wheel welding device which is composed of the clamping robot, the first conveying belt, the blade ferris wheel assembly, the second conveying belt, the welding robot and the cooling sand circulation assembly is arranged, so that the aircraft engine blade can be efficiently welded, in the working process, the aircraft engine blade is placed on the blade ferris wheel assembly, the aircraft engine blade is driven to rotate through the rotating blade ferris wheel assembly, welding is achieved through the welding mechanical arm, then the unwelded aircraft engine blade is conveyed through the first conveying belt, the welded aircraft engine blade is conveyed through the second conveying belt, assembly line operation of the aircraft engine blade is achieved, the blade ferris wheel assembly rotates in a ferris wheel mode and is welded through the welding mechanical arm, manual welding is not needed, and the welding precision and the welding speed are high.

Another embodiment of the application discloses an aircraft engine blade ferris wheel welding device, wherein the blade ferris wheel assembly comprises a triple ferris wheel, the triple ferris wheel comprises three blade ferris wheel sets, and the three blade ferris wheel sets are sequentially arranged at intervals along a second direction.

The triple ferris wheel further comprises two bases which are arranged along the second direction and positioned at two ends of the length direction of the three blade ferris wheel sets, each base is provided with a bearing seat, each bearing seat is provided with a rotating bearing and a rotating shaft, and the rotating shafts sequentially penetrate through the three blade ferris wheel sets along the second direction and are respectively and rotatably connected with each blade ferris wheel set.

Every blade ferris wheel group all includes driving motor, worm gear mechanism and ferris wheel body, and worm gear mechanism includes worm and the worm wheel that the transmission is connected, and the worm is connected with driving motor's output, and worm wheel and axis of rotation and ferris wheel body connection, and axis of rotation, worm wheel and ferris wheel body three coincide.

The ferris wheel body is circular shape rim plate form, and the radial direction of ferris wheel body sets up along vertical direction, and the periphery of every ferris wheel body all is provided with a plurality of moulds, and a plurality of moulds evenly and have the interval to set up along the outermost periphery of ferris wheel body, are provided with the blade groove with the aeroengine blade adaptation on every mould to the position that one side of every mould is close to the blade groove is provided with the cooling return circuit of blowing correspondingly.

Adopt above-mentioned technical scheme, set up the trigeminy ferris wheel, improve the welding efficiency to aeroengine blade through three blade ferris wheel group, drive ferris wheel body through driving motor and worm gear mechanism, drive structure is simple and driving efficiency is high, sets up the cooling return circuit of blowing in one side of mould, carries out the cooling and blows in welding process and after the welding, avoids monocrystalline blade to appear recrystalizing.

Preferably, the mould includes the red copper mould, and every red copper mould all sets up along the radial direction of the periphery of ferris wheel body, and the middle part of red copper mould is provided with the blade groove, and blade groove and aeroengine blade adaptation and separable place aeroengine blade to still include blade pneumatic fixture, one side of every red copper mould is provided with a blade pneumatic fixture at least correspondingly, and blade pneumatic fixture includes cylinder, pneumatic element, action bars and blade depression bar.

The output end of the air cylinder is in transmission connection with the pneumatic element, the pneumatic element is in rotatable connection with the action rod, the action rod is in rotatable connection with the blade pressing rod, the end part of the blade pressing rod is rotatably arranged on one side of the red copper die, which is close to the blade groove, and the pneumatic element, the action rod and the blade pressing rod form a connecting rod mechanism. Two blade pneumatic clamping mechanisms are respectively arranged at the two side end parts of the red copper die, and the two blade pneumatic clamping mechanisms are fixedly arranged at the two end parts of the aero-engine blade in the blade groove.

By adopting the technical scheme, the red copper die also has good radiating effect during welding, the blade pneumatic clamping mechanism is used for clamping and fixing the aeroengine blade, the blade pressing rod is opened before clamping, after the aeroengine blade is clamped and placed, the blade pressing rod is used for press fitting and fixing, then the blade pneumatic clamping mechanism is opened after the welding is finished, and the next round of welding preparation is performed.

The invention further discloses a welding device for the ferris wheel of the aero-engine blade, and the cooling blowing loop comprises an air dryer, an air compressor, a gas collector and a blowing pipe.

The gas outlet of air dryer communicates with air compressor's air inlet, and air compressor's gas outlet communicates with the air inlet of gas collection divides the ware, and gas collection divides the ware to set up on the ferris wheel body and be radial extension to the position that the red copper mould was located, and the gas outlet of gas collection divides the ware communicates with the gas blowing pipe respectively, and the fixed setting of gas blowing pipe is on the red copper mould to, be provided with two gas blowing pipes on every red copper mould, the welding position of the directional aeroengine blade of gas outlet of every gas blowing pipe.

Preferably, 100 red copper dies are arranged on each ferris wheel body, and the 100 red copper dies are uniformly and at intervals along the periphery of the ferris wheel body.

By adopting the technical scheme, the cooling blowing loop can blow in the welding process, so that the recrystallization of the monocrystalline blade is avoided, and the welding quality and the finished product qualification rate of the aero-engine blade are improved.

The clamping robot comprises a robot pedestal and a clamping mechanical arm, the clamping mechanical arm is rotatably arranged on the robot pedestal, a clamping jaw and clamping visual monitoring are arranged at one end, far away from the robot pedestal, of the clamping mechanical arm, and one end, provided with the clamping jaw, of the clamping mechanical arm can move between the first conveying belt and the blade ferris wheel assembly. Wherein the clamping jaw is adapted to the aircraft engine blade and can be opened or closed relatively.

A plurality of aero-engine blades are placed on the first conveyor belt and are sequentially conveyed, the clamping jaw is relatively opened and grabs one of the aero-engine blades on the first conveyor belt and is transferred to the red copper die, and when the aero-engine blades are placed in the blade grooves, two blade pneumatic clamping mechanisms located at two side end portions of the red copper die act and respectively fix the aero-engine blades.

By adopting the technical scheme, the automatic clamping of the aero-engine blade is realized by arranging the clamping robot, and the clamping efficiency and the automation degree are high.

The invention further discloses a welding device for the ferris wheel of the aero-engine blade, and the welding robot comprises a welding mechanical arm and a welding gun assembly. Welding gun assembly detachably sets up the one end near the ferris wheel body at welding mechanical arm, and welding visual monitoring still is provided with on one side of welding gun assembly, and welding mechanical arm is provided with welding gun assembly's one end and can remove between second conveyer belt and blade ferris wheel assembly.

The welding gun quick-change mechanism comprises a welding gun quick-change station, at least three standby welding gun heads are arranged on the welding gun quick-change station, and pneumatic quick-change grooves are formed in the end portions of each welding gun head.

Each welding gun assembly comprises a quick-change head, a welding gun and a welding wire clamping part, wherein the quick-change head is arranged at the end part of the welding mechanical arm, the end part of the welding gun is close to the welding wire clamping part, a welding wire is clamped on the welding wire clamping part, and a tungsten electrode is arranged at the end part of the welding gun.

By adopting the technical scheme, automatic welding is performed through the welding robot, auxiliary welding is performed through welding visual monitoring, welding efficiency is higher, and qualification rate is also higher.

The invention further discloses a welding device for the ferris wheel of the aeroengine blade, which further comprises a tungsten electrode grinding table, wherein one side of the tungsten electrode grinding table is also provided with a tungsten electrode filament storage matrix library. The tungsten electrode grinding table comprises a workbench, wherein a grinding wheel, a standard height table, a length detector and a wire cutting machine are sequentially arranged on the workbench, the grinding wheel is rotatably arranged on the workbench, and an inclined friction workbench surface is arranged on the grinding wheel.

By adopting the technical scheme, the tungsten electrode grinding table is used for grinding and replacing tungsten electrodes.

The invention also discloses a welding device for the ferris wheel of the aero-engine blade, and the cooling sand circulation assembly comprises: the cooling sand box is in a funnel shape; the cooling sand pipe is communicated with the outlet of the cooling sand box, is arranged on one side of the second conveyor belt and extends along the length direction of the second conveyor belt, and is correspondingly provided with three sand outlets, and each sand outlet corresponds to one ferris wheel body; the blade is accepted the board, and the blade is accepted the board and is provided with three, and every blade is accepted the board and all is set up in the below of a ferris wheel body that corresponds, and the blade is accepted the board slope and is set up, and the export that the blade accepted the board is close to the second conveyer belt.

When the welding of the aircraft engine blade is completed, the ferris wheel body rotates and conveys the aircraft engine blade to the upper side of the blade bearing plate, the aircraft engine blade falls off and slides to the second conveyor belt through the blade bearing plate, and cooling sand flowing out of the outlet of the cooling sand pipe covers the aircraft engine blade.

By adopting the technical scheme, after welding, cooling treatment can be rapidly performed on the aeroengine blade through cooling sand.

The application further discloses a welding device for the ferris wheel of the aero-engine blade, which further comprises: the clamping robot control cabinet is arranged on one side of the clamping robot and is electrically connected with the clamping robot.

The welding robot control cabinet is arranged on one side of the welding robot and is electrically connected with the welding robot.

The beneficial effects of the application are as follows: according to the welding device for the aircraft engine blade ferris wheel, which is composed of the clamping robot, the first conveying belt, the blade ferris wheel assembly, the second conveying belt, the welding robot and the cooling sand circulation assembly, the aircraft engine blade can be efficiently welded and treated, in the working process, the clamping robot can clamp the aircraft engine blade on the first conveying belt on the blade ferris wheel assembly, the aircraft engine blade is driven to rotate through the rotating blade ferris wheel assembly, welding work on the aircraft engine blade is achieved through the welding mechanical arm, the first conveying belt is used for conveying the unwelded aircraft engine blade, the second conveying belt is used for conveying the welded aircraft engine blade, assembly line work of the aircraft engine blade is achieved, the automation degree is high, the blade ferris wheel assembly rotates in a ferris wheel mode and is welded through the welding mechanical arm, manual welding is not needed, the welding precision is high, and the welding speed is high. The high-efficiency, high-speed, high-precision and high-automation welding treatment of the aero-engine blade is realized.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an aircraft engine blade ferris wheel welding device according to an embodiment of the invention;

fig. 2 is a top view of an aircraft engine blade ferris wheel welding device provided by an embodiment of the invention;

fig. 3 is a side view of an aircraft engine blade ferris wheel welding device provided by an embodiment of the invention;

fig. 4 is a schematic structural diagram of a blade ferris wheel assembly of an aircraft engine blade ferris wheel welding device according to an embodiment of the present invention;

fig. 5 is another schematic structural view of a blade ferris wheel assembly of an aircraft engine blade ferris wheel welding device according to an embodiment of the present invention;

FIG. 6 is a side view and a partial enlarged view of a blade ferris wheel assembly in an aircraft engine blade ferris wheel welding apparatus according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a partial structure of a blade ferris wheel set in an aero-engine blade ferris wheel welding device according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a red copper mold and an aircraft engine blade in the aircraft engine blade ferris wheel welding device according to the embodiment of the invention;

fig. 9 is a schematic structural diagram of a clamping robot in an aircraft engine blade ferris wheel welding device according to an embodiment of the invention;

Fig. 10 is a schematic structural diagram of a welding robot in an aircraft engine blade ferris wheel welding device according to an embodiment of the present invention;

fig. 11 is a schematic illustration of a welding gun structure in an aircraft engine blade ferris wheel welding device according to an embodiment of the present invention;

fig. 12 is a schematic view of another structure of a welding gun in an aircraft engine blade ferris wheel welding device according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a welding gun quick-change station in an aircraft engine blade ferris wheel welding device according to an embodiment of the invention;

fig. 14 is a schematic diagram of a welding robot in the welding device for the ferris wheel of the aero-engine blade according to the embodiment of the invention when a welding gun is replaced;

fig. 15 is a schematic diagram of a welding robot in the welding device for the ferris wheel of the aero-engine blade according to the embodiment of the invention when a tungsten electrode needs to be ground;

fig. 16 is a schematic structural view of a welding robot welding blade and a tungsten electrode grinding table in an aircraft engine blade ferris wheel welding device according to an embodiment of the invention.

Reference numerals illustrate:

100. clamping a robot;

110. clamping the mechanical arm; 120. a clamping jaw; 130. clamping and visual monitoring;

200. a first conveyor belt;

300. a blade ferris wheel assembly;

310. A base; 320. a bearing seat; 330. a rotating shaft; 340. a driving motor; 350. a worm gear mechanism; 360. a ferris wheel body; 370. a red copper mold;

361. an action bar; 362. a blade compression bar; 363. a gas collector; 364. an air blowing pipe;

400. a second conveyor belt;

500. a welding robot;

510. welding a mechanical arm; 520. a welding gun quick-change mechanism; 530. quick-changing station of welding gun; 540. quick-change head; 550. a welding gun; 560. a wire clamping portion; 570. welding visual monitoring; 580. a straight wire welding gun head; 590. wire coiling welding gun head;

600. a cooling sand circulation assembly;

610. cooling the sandbox; 620. cooling the sand pipe; 630. a blade receiving plate;

700. aero-engine blades;

800. a tungsten electrode grinding table; 810. grinding wheel; 820. a standard height stage; 830. a length detector; 840. a wire cutting machine; 850. tungsten electrode Chu Si matrix library;

910. clamping a robot control cabinet; 920. welding robot control cabinet; 930. a main control cabinet; 940. a wire changing machine; 950. a wire feeder; 960. a monitoring device;

A. a first direction; B. a second direction.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings.

The specific implementation of this embodiment discloses an aircraft engine blade ferris wheel welding device, please refer to fig. 1 and 2, and the welding device includes a clamping robot 100, a first conveyor belt 200, a blade ferris wheel assembly 300, a second conveyor belt 400, a welding robot 500 and a cooling sand circulation assembly 600, which are sequentially arranged at intervals along a first direction. Wherein the first direction defined in the present application is shown as direction a in fig. 1 and the second direction is shown as direction B in fig. 1.

Referring to fig. 3, a clamping robot 100 is provided with a clamping arm 110 capable of moving around. With further reference to fig. 2, the first conveyor 200 is located at one side of the clamping robot 100 and extends in a second direction perpendicular to the first direction; the blade ferris wheel assembly 300 is arranged between the first conveyor belt 200 and the second conveyor belt 400, the welding robot 500 is positioned on one side of the second conveyor belt 400 away from the blade ferris wheel assembly 300, the welding robot 500 is provided with a welding mechanical arm 510 which can be turned flexibly, and the cooling sand circulation assembly 600 is positioned on one side of the second conveyor belt 400 away from the blade ferris wheel assembly 300.

Referring to fig. 4 and 7, the outer circumference of the vane ferris wheel assembly 300 is continuously and intermittently provided with a plurality of molds for accommodating the aero-engine vanes 700, the vane ferris wheel assembly 300 rotates and drives the molds and the aero-engine vanes 700 to rotate, the first conveyor belt 200, the second conveyor belt 400 and the vane ferris wheel assembly 300 are all extended in the second direction, the first conveyor belt 200 conveys the non-welded aero-engine vanes 700, and the second conveyor belt 400 conveys the aero-engine vanes 700 after the welding is completed. The extended arrangement of the vane ferris wheel assembly 300 in the second direction means that three vane ferris wheels on the vane ferris wheel assembly 300 are arranged at intervals in the second direction.

The rotation of the blade ferris wheel assembly 300, and the rotation of the mold and the aircraft engine blade 700 are specifically described as follows: referring to fig. 1, an operation mode of the three-bladed ferris wheel in the middle of the bladed ferris wheel assembly 300 will be described as an example: the outer circumference of the blade ferris wheel is provided with a plurality of moulds at intervals, the blade ferris wheel normally rotates when working, for example, when rotating to the side close to the clamping robot 100, the clamping robot 100 clamps the aero-engine blade 700 on the mould, then the blade ferris wheel rotates, at this time, the mould on the blade ferris wheel and the aero-engine blade 700 also rotate along with the mould, when rotating to the side close to the welding robot 500, the welding robot 500 works to weld, for example, after the blade ferris wheel rotates 120 degrees, the blade ferris wheel rotates to a welding position from the clamping position, further, the rotation angle can be 90 degrees, 110 degrees, 130 degrees and the like, and the embodiment is not limited in particular.

Specifically, the operation principle of the welding system in this embodiment is that a clamping robot 100 and a welding robot 500 surround a set of blade ferris wheel assemblies 300 (triple ferris wheels) and integrally coordinate to work under the control of a control system. The clamping robot 100 recognizes the aircraft engine blade 700 on the first conveyor belt 200 from the clamping visual monitoring 130, adjusts the gesture of the aircraft engine blade 700, clamps the aircraft engine blade 700 on a die (red copper die 370) of a blade ferris wheel, drives the blade ferris wheel to rotate under the driving of a driving motor and a worm and gear mechanism 350, and after the welding robot 500 recognizes the red copper die 370 clamped with the aircraft engine blade 700 in place, the welding visual monitoring 570 recognizes the welding position and then performs welding, the welding visual monitoring 570 detects welding forming, the red copper die 370 of the aircraft engine blade 700 loosens the falling second conveyor belt 400 after the specified time of post-welding air cooling, and the cooling sand circulation assembly 600 is covered with specified amount cooling sand and conveys blanking. The process is repeated, the abrasion-resistant layer of the aero-engine blade 700 can be welded according to the set beat, the assembly line type welding work is realized, the welding efficiency is high, the welding is accurate, and the occupied area and the occupied space are small.

The welding device according to the present application is not limited to welding the abradable layer of the aircraft engine blade 700, but may be applied to welding other portions of the aircraft engine blade 700, and may be applied to welding work on other devices or other members.

More specifically, in the present embodiment, the blade ferris wheel assembly 300 may be provided with 1, 2, 3, 4 or other number of ferris wheel bodies, and the present embodiment is illustrated by taking a triple ferris wheel (three ferris wheel bodies are provided).

It should be noted that, as will be understood by those skilled in the art, each component of the device can work together while working independently, so as to achieve the operations of grabbing, clamping, conveying, welding, cooling, etc. of the aero-engine blade 700. That is, each component of the apparatus forms a working system, for example, the clamping robot 100 forms a clamping system as a whole, the first conveyor belt 200 forms a conveying system for the unwelded aircraft engine blade 700, the blade ferris wheel assembly 300 also forms a working system, the second conveyor belt 400 forms a conveying system for the welded aircraft engine blade 700, the welding robot 500 forms a welding system, and the cooling sand circulation assembly 600 forms a cooling system.

And two or more of the above systems cooperate to form a working system, for example, all the systems cooperate to form the welding device of the application; for example, the clamping robot 100 and the first conveyor belt 200 cooperate to form a system for transporting and clamping the unwelded aircraft engine blade 700, and the clamping robot 100, the blade ferris wheel assembly 300, and the welding robot 500 form a system for clamping, transporting, and welding the aircraft engine blade 700.

It should be noted that, the blade ferris wheel assembly 300 can transfer the aero-engine blade 700 from the clamping position to the welding position, and the process is continuous, the plurality of aero-engine blades 700 are sequentially and continuously clamped, transferred and welded, and after the welding, the cooling treatment is further performed, and by arranging the blade ferris wheel assembly 300, the working efficiency of the aero-engine blade 700 is greatly increased.

By adopting the design of the structure, the welding device for the aircraft engine blade ferris wheel, which is formed by the clamping robot 100, the first conveyor belt 200, the blade ferris wheel assembly 300, the second conveyor belt 400, the welding robot 500 and the cooling sand circulation assembly 600, can be used for efficiently welding the aircraft engine blade 700, and in the working process, the aircraft engine blade 700 is placed on the blade ferris wheel assembly 300, the aircraft engine blade 700 is driven to rotate by the rotating blade ferris wheel assembly 300 and is welded by the welding mechanical arm 510, then the first conveyor belt 200 is used for conveying the unwelded aircraft engine blade 700, the second conveyor belt 400 is used for conveying the welded aircraft engine blade 700, so that the assembly line operation of the aircraft engine blade 700 is realized, the blade ferris wheel assembly 300 automatically rotates in the form of a ferris wheel and is welded by the welding mechanical arm 510, the welding is not needed by hands, the welding precision is high, and the welding speed is high.

The embodiment of the invention also discloses a welding device for the aircraft engine blade ferris wheel, referring to fig. 4 and 5, the blade ferris wheel assembly 300 comprises a triple ferris wheel, the triple ferris wheel comprises three blade ferris wheel sets, and the three blade ferris wheel sets are sequentially arranged at intervals along the second direction.

Referring to fig. 5, the triple ferris wheel further includes two bases 310 disposed along the second direction and located at both ends of the length direction of the three blade ferris wheel sets, each base 310 is provided with a bearing block 320, each bearing block 320 is provided with a rotating bearing (not shown) and a rotating shaft 330, and the rotating shaft 330 sequentially penetrates the three blade ferris wheel sets along the second direction and is rotatably connected with each blade ferris wheel set. The blade ferris wheel set is installed by providing a base 310, a bearing housing 320, a rotating bearing and a rotating shaft 330.

Referring to fig. 5, each of the ferris wheel sets includes a driving motor 340, a worm gear mechanism 350 and a ferris wheel body 360, the worm gear mechanism 350 includes a worm and a worm wheel connected by a transmission, the worm is connected to an output end of the driving motor 340, the worm wheel is connected to a rotating shaft and the ferris wheel body 360, and axes of the rotating shaft, the worm wheel and the ferris wheel body 360 are coincident.

The ferris wheel body 360 is circular shape rim plate, and the radial direction of ferris wheel body 360 sets up along vertical direction, and every ferris wheel body 360's periphery all is provided with a plurality of moulds (red copper mould 370), and a plurality of moulds evenly and have the interval to set up along the outermost periphery of ferris wheel body 360, are provided with the blade groove with the aeroengine blade 700 adaptation on every mould to the position that one side of every mould is close to the blade groove is provided with the cooling and blows the return circuit correspondingly.

The driving motor 340 drives the worm to rotate, the worm drives the worm wheel to rotate, and the rotation shaft and the ferris wheel body 360 are driven to rotate when the worm wheel rotates.

More specifically, the working process of the triple ferris wheel is taken as an example for explanation: the ferris wheel is driven to rotate by the servo of the driving motor 340, the clamping position and the welding position of the aero-engine blade 700 are positioned, the conformal red copper mold 370 on the ferris wheel clamps the aero-engine blade 700, heat conduction and heat dissipation are carried out in the welding process of the conformal red copper mold 370, the work efficiency of conveying the aero-engine blade 700 is improved through three blade ferris wheel sets, the ferris wheel body 360 is driven through the driving motor 340 and the worm gear mechanism 350, the driving structure is simple, the driving efficiency is high, a cooling blowing loop is arranged on one side of the mold, the cooling blowing loop blows air to the welding position immediately after welding to cool the aero-engine blade 700, and the conformal red copper mold 370 and the cooling blowing loop jointly act to accelerate the heat dissipation of the aero-engine blade 700 in the welding process and after the welding is completed, and recrystallization of the single crystal aero-engine blade 700 is avoided.

Preferably, in this embodiment, the molds are configured as red copper molds 370, referring to fig. 7, each red copper mold 370 is disposed along a radial direction of an outer circumference of the ferris wheel body 360, a blade groove (not shown in the drawing) is provided at a middle portion of the red copper mold 370, referring to fig. 8, which is adapted to the aero-engine blade 700 and detachably holds the aero-engine blade 700, and further includes a blade pneumatic clamping mechanism, at least one blade pneumatic clamping mechanism is provided at one side of each red copper mold 370, and the blade pneumatic clamping mechanism includes a cylinder (not shown in the drawing), a pneumatic element (not shown in the drawing), a motion bar 361, and a blade compression bar 362.

It should be appreciated that the placement of the aero-engine blade 700 in the blade slot may be performed by the blade pneumatic clamping mechanism after the aero-engine blade 700 is placed in the blade slot, and the aero-engine blade 700 may be separated from the red copper mold 370 when the blade pneumatic clamping mechanism is not clamped.

The output end of the air cylinder is in transmission connection with a pneumatic element, the pneumatic element is in rotatable connection with an action rod 361, the action rod 361 is in rotatable connection with a blade pressing rod 362, the end part of the blade pressing rod 362 is rotatably arranged on one side of the red copper die 370 close to the blade groove, and the pneumatic element, the action rod 361 and the blade pressing rod 362 form a link mechanism. And two blade pneumatic clamping mechanisms are respectively arranged at two side ends of the red copper die 370, and the two blade pneumatic clamping mechanisms are used for fixing two end parts of the aero-engine blade 700 positioned in the blade groove.

By adopting the technical scheme, the red copper die 370 also has a good heat dissipation effect during welding, the blade pneumatic clamping mechanism is used for clamping and fixing the aero-engine blade 700, the blade compression bar 362 is opened before clamping, after the aero-engine blade 700 is clamped and placed, the blade compression bar 362 is used for press-fitting and fixing, and then the blade pneumatic clamping mechanism is opened after the welding is finished, so that the next round of welding preparation is performed.

One embodiment of the present invention also discloses an aircraft engine blade ferris wheel welding device, which can be seen in fig. 6, and the cooling and blowing circuit comprises an air dryer (not shown), an air compressor (not shown), a gas collector 363, and a blowing pipe 364 (see fig. 7). The gas outlet of the air dryer is communicated with the gas inlet of the air compressor, the gas outlet of the air compressor is communicated with the gas inlet of the gas collector 363, the gas collector 363 is arranged on the ferris wheel body 360 and radially extends to the position where the red copper mold 370 is located, the gas outlet of the gas collector 363 is respectively communicated with the gas blowing pipes 364, the gas blowing pipes 364 are fixedly arranged on the red copper mold 370, two gas blowing pipes 364 are arranged on each red copper mold 370, the gas outlet of each gas blowing pipe 364 points to the welding position of the aircraft engine blade 700, two gas blowing pipes 364 are arranged, gas blowing and cooling are conducted towards the welding position during welding, and gas blowing and cooling are conducted after welding.

Preferably, 100 red copper molds 370 are provided on each ferris wheel body 360, and the 100 red copper molds 370 are uniformly and intermittently provided along the outer circumference of the ferris wheel body 360. Note that, in the present application, 80, 90, 110 or other numbers of red copper molds 370 may be provided, which is not particularly limited in this embodiment.

By adopting the technical scheme, the cooling blowing loop can blow in the welding process, so that the recrystallization of the aero-engine blade 700 in the welding process is avoided, and the welding quality and the finished product qualification rate of the aero-engine blade 700 are improved.

The embodiment of the application also discloses an aircraft engine blade ferris wheel welding device, referring to fig. 9, the clamping robot 100 comprises a robot pedestal and a clamping mechanical arm 110, the clamping mechanical arm 110 is rotatably arranged on the robot pedestal, a clamping jaw 120 and a clamping visual monitor 130 are arranged at one end of the clamping mechanical arm 110 far away from the robot pedestal, and one end of the clamping mechanical arm 110 provided with the clamping jaw 120 can move between the first conveyor belt 200 and the blade ferris wheel assembly 300.

Jaw 120 is adapted to aero-engine blade 700 and is relatively openable and closable. A plurality of aero-engine blades 700 are placed on the first conveyor belt 200 and sequentially conveyed, the clamping jaws 120 are relatively opened and grab one of the aero-engine blades 700 on the first conveyor belt 200 and are transferred to the red copper mold 370, and when the aero-engine blades 700 are placed in the blade grooves, two blade pneumatic clamping mechanisms located at two side end portions of the red copper mold 370 act and respectively fix the aero-engine blades 700.

The working process of the clamping vision monitor 130 and the first conveyor 200 and the clamping robot 100 will be described by way of example: first, the first conveyor belt 200 delivers the unwelded aircraft engine blade 700; the clamping visual monitoring 130 recognizes the pose of the aero-engine blade 700 on the conveyor belt, controls the clamping jaw 120 on the clamping mechanical arm 110 to clamp the aero-engine blade 700, and the clamping robot 100 adjusts the pose of the aero-engine blade 700 so as to finish the work of the clamping robot 100 for grabbing the aero-engine blade 700. Then the ferris wheel body 360 rotates by a certain angle, the clamping visual monitor 130 identifies the gesture of the conformal red copper mold 370, the clamping robot 100 calculates the clamping gesture, then the clamping robot 100 places the aero-engine blade 700 on the conformal red copper mold 370, then the blade pneumatic clamping mechanism clamps the aero-engine blade 700, and the clamping visual monitor 130 detects the clamping gesture of the aero-engine blade 700 to ensure correct clamping.

Further, the working mode is as follows: the clamping robot 100 controller gives a signal to the central controller according to the feedback result of the grabbing/clamping visual system, and the central controller controls the operation of the conveyor belt according to the feedback signal of the robot controller. The attitude of the aero-engine blade 700 has randomness on the conveyor belt, and the clamping robot 100 adjusts the attitude of the aero-engine blade 700 to a specified state according to the visual system detection result. The clamping robot 100 clamps the aero-engine blade 700 with the adjusted posture to be clamped on the conformal red copper mold 370, two blade pressure rods 362 of the blade pneumatic clamping mechanism on the conformal red copper mold 370 are opened, the clamping robot 100 loads the aero-engine blade 700 into the conformal red copper mold 370 in the regular position, and the two blade pressure rods 362 of the blade pneumatic clamping mechanism press the aero-engine blade 700. The vision system of the clamping robot 100 performs vision detection on the clamped aero-engine blade 700, and if the clamping pose is correct, the clamping pose is finished, and the clamping pose is not correctly adjusted to the correct pose. The clamping operation of the unwelded aero-engine blade 700 is achieved through the cooperation of the clamping visual monitoring 130 and the clamping mechanical arm 110. It should be noted that this embodiment only discloses one clamping control scheme, and those skilled in the art may also use other modes to control.

By adopting the technical scheme, the automatic clamping of the aero-engine blade 700 is realized by arranging the clamping robot 100, so that the clamping efficiency is high and the automation degree is high.

One of the embodiments of the present application further discloses a welding device for the ferris wheel of the aero-engine blade, please refer to fig. 14, wherein the welding robot 500 comprises a welding mechanical arm 510 and a welding gun assembly.

Referring to fig. 10, the welding gun assembly is detachably disposed at an end of the welding robot arm 510 near the ferris wheel body 360, a welding visual monitor 570 is further disposed at one side of the welding gun assembly, and the end of the welding robot arm 510 provided with the welding gun assembly can move between the second conveyor 400 and the blade ferris wheel assembly 300.

Referring to fig. 13 and 14, the welding gun quick-change mechanism 520 is further provided on one side of the welding robot 500, the welding gun quick-change mechanism 520 includes a welding gun quick-change station 530, at least three spare welding gun heads (three are illustrated in the present application and include a straight wire welding gun head 580 and a wire coil welding gun head 590) are provided on the welding gun quick-change station 530, and a pneumatic quick-change groove is provided at an end of each welding gun head.

Each welding gun assembly comprises a quick-change head 540, a welding gun 550 and a welding wire clamping part 560, wherein the quick-change head 540 is arranged at the end part of the welding mechanical arm 510, the end part of the welding gun 550 is close to the welding wire clamping part 560, the welding wire is clamped on the welding wire clamping part 560, and a tungsten electrode is arranged at the end part of the welding gun 550.

Further, the present application is illustrated with a straight wire torch head 580 and a wire coil torch head 590, for example, fig. 11 and 12 show two configurations of straight wire torch heads 580, and the middle torch 550 of fig. 13 shows a wire coil torch head 590, it will be appreciated that referring to fig. 13, each of the ends of the torch heads is provided with a tungsten electrode and a welding wire for a welding operation. It should be noted that the structure of the quick-change head 540 is not limited to the pneumatic quick-change groove, but may be other structures.

Take the example of placing the straight wire torch head 580 and the wire coil torch head 590 on the quick-change table for explanation:

the tail ends of the straight wire welding gun head 580 and the wire coiling welding gun head 590 are fixed at the concave end of the pneumatic quick-change head; the tail end of the welding robot 500 is fixed with a pneumatic quick-change head convex end; when the welding gun 550 is replaced, referring to fig. 14, a straight wire (coil wire) welding gun head clamped at the end of the welding robot 500 is placed on an empty seat on the welding gun quick-changing station 530, and then the coil wire (straight wire) welding gun head is pneumatically clamped at the end of the welding robot 500; thereby facilitating easy and accurate replacement of straight wire torch head 580 and wire coil torch head 590, as will be appreciated by those skilled in the art, other ways of replacement may be used.

It should be noted that an example is given: welding robot 500 and welding vision monitor 570 constitute an intelligent welding system, which includes: welding robot 500, welding vision monitoring 570 and welding detection system, before welding, welding vision monitoring 570 detects whether aero-engine blade 700 is in place (rotates to the welding position), and if so, signals welding robot 500 that welding robot 500 is ready to weld. The welding vision monitor 570 detects the pose of the aero-engine blade 700, and after compensating the deviation of the pose of the aero-engine blade 700, the robot controller controls the welding robot 500 to weld according to a preset welding process. After welding, the cooling and blowing loop works to blow air to forcedly cool the welding area of the aero-engine blade 700. During the welding process, the welding pool is dynamically monitored in real time by a welding detection system, and the monitored data is uploaded and stored, for example, fig. 16, and the welding robot 500 performs welding work.

The combined cooling system of the aircraft engine blade 700 comprises: in the welding process of the wear-resistant layer of the aero-engine blade 700, in order to prevent the recrystallization of the single-crystal aero-engine blade 700 caused by heat input, the complete machine system designs a combined cooling system of the aero-engine blade 700, comprising: the conformal red copper mold 370 directly dissipates heat to the aero-engine blade 700; the cooling blowing loop directly blows air to the welding area of the aero-engine blade 700 for forced cooling; the cooling sand circulation assembly 600 cools the welded aircraft engine blade 700.

In the welding process, the conformal red copper mold 370 conducts heat transfer and conduction to the aero-engine blade 700 to cool, immediately blows air to the welding area after welding, directly cools the welding part, after blowing air for a certain time, the blade pneumatic clamping mechanism clamping the aero-engine blade 700 is loosened, the aero-engine blade 700 falls onto the second conveyor belt 400 instantly, the cooling sand circulation system outputs a set amount of cooling sand to cover the aero-engine blade 700 on the conveyor belt, and the second conveyor belt 400 travels a set distance to stop waiting for the next aero-engine blade 700 to fall.

Specifically, the working process comprises the following steps: after the welding of the aero-engine blade 700 is finished, air is blown for a certain time immediately, then blade pneumatic clamping mechanisms at two ends of the aero-engine blade 700 are loosened, the aero-engine blade 700 falls onto the second conveyor belt 400, the instantaneous cooling sand circulation assembly 600 outputs a set amount of cooling sand to cover the aero-engine blade 700 on the second conveyor belt 400, and the second conveyor belt 400 moves for a set distance to stop waiting for the next aero-engine blade 700 to fall, for example, the second conveyor belt 400 can move for 40cm, 50cm, 60cm and the like.

By adopting the technical scheme, automatic welding is performed through the welding robot 500, auxiliary welding is performed through the welding visual monitoring 570, the welding efficiency is higher, and the qualification rate is also higher.

Another embodiment of the present invention further discloses an aircraft engine blade ferris wheel welding device, please refer to fig. 15, further comprising a tungsten electrode grinding table 800, wherein one side of the tungsten electrode grinding table 800 is further provided with a tungsten electrode wire storage matrix library 850, further referring to fig. 1 and 2, and further comprising a wire changer 940 and a wire feeder 950, which are matched with the welding robot 500, wherein the wire changer 940 is used for changing welding wires, and the wire feeder 950 is used for feeding welding wires during welding.

The tungsten electrode grinding table 800 comprises a workbench, wherein a grinding wheel 810, a standard height table 820, a length detector 830 and a wire cutting machine 840 are sequentially arranged on the workbench, the grinding wheel 810 is rotatably arranged on the workbench, and an inclined friction workbench surface is arranged on the grinding wheel 810.

Further description will be given of tungsten electrode replacement and grinding as examples:

the tungsten electrode grinding table 800 is used for finishing tungsten electrode grinding, tungsten electrode extension length adjustment and supplement and welding wire ball head shearing. The specific tungsten electrode polishing process comprises the following steps: the welding mechanical arm 510 clamps the straight wire welding head to run to the set height above the standard height table 820, then the welding gun 550 loosens the tungsten electrode, the falling bottom end of the tungsten electrode contacts the surface of the standard height table 820, the tungsten electrode is clamped by the welding gun 550, the welding mechanical arm 510 clamps the tungsten electrode to run to the specified position of the grinding wheel 810, the grinding wheel 810 rotates, and the welding robot 500 controls the tungsten electrode to contact the grinding wheel 810 to bypass one circle to finish grinding.

The tungsten electrode replacement process comprises the following steps: the tungsten electrode is polished for a prescribed number of times, the welding robot 510 drops the tungsten electrode into the tungsten electrode recycling box, and then the welding robot 510 clamps a new tungsten electrode from the tungsten electrode wire storage matrix library 850.

Tungsten electrode extension length adjustment and compensation process: after finishing polishing the tungsten electrode, the welding robot 500 clamps the tungsten electrode to run to a set height above the standard height table 820, then the welding gun 550 loosens the tungsten electrode, the falling bottom end of the tungsten electrode contacts the surface of the standard height table 820, the welding gun 550 clamps the tungsten electrode, the welding robot clamps the tungsten electrode to run to a set distance above the extension length detector 830, the welding robot clamps the tungsten electrode to run down, the bottom end of the tungsten electrode contacts the surface of the extension length detector 830, the extension length detector 830 measures the length of the tungsten electrode, and the system compensates welding pose according to the length of the tungsten electrode during subsequent robot welding.

The process of welding wire front end ball forming and shearing: welding visual monitoring 570 detects whether the welding wire front end has a ball, if yes, the welding robot positions the welding wire to the specified position of wire shearing machine 840 in the specified gesture, wire shearing machine 840 shears the ball at the welding wire front end, the welding wire is fed, welding visual monitoring 570 detects that the welding wire extends to the proper length, and finally the ball forming shearing of the welding wire is completed.

Furthermore, the straight wire storage cylinder disclosed by the invention can store welding wires with two specifications, namely the diameter of 1.2mm and the diameter of 1.6mm, and the welding wires with the two specifications are stored in a double parallel wire storage cylinder shape, and the welding wires stored in the straight wire storage cylinder can be used for describing that the welding wires comprise but are not limited to the two welding wires.

Further, the welding straight wire changing process is briefly described: the welding robot 500 clamps the straight wire welding gun head 580 to be positioned to a specified position near the straight wire storage barrel in a set gesture, then the straight wire storage barrel drives the corresponding wire storage barrel to rotate by a set angle according to the specification requirement of welding wire replacement, the straight wire falls onto a pneumatic driving arc grooved pulley along the inclined plane of the wire storage barrel, the pneumatic system drives a dual wheel to press a fixed wheel so as to tightly press welding wires, a motor rotates to drive the welding wires to move forward, the welding wires pass through the wire guide tube of the wire storage barrel and further pass through the wire guide tube of the straight wire welding gun head 580, welding vision detects whether the extending length of the welding wires is in place, if not, the welding wires are continuously fed, and if not, the welding wire replacement is finished.

By adopting the technical scheme, the tungsten electrode grinding table 800 can be used for performing tungsten electrode grinding, tungsten electrode replacement, tungsten electrode extension length adjustment and compensation, welding wire front end ball forming shearing and welding wire clamping, and most of working requirements of tungsten electrodes and welding wires can be met by arranging the tungsten electrode grinding table 800.

Another embodiment of the present invention also discloses an aircraft engine blade ferris wheel welding apparatus, referring to fig. 1 and 2, the cooling sand circulation assembly 600 includes: the cooling sandbox 610, the cooling sandbox 610 being funnel-shaped.

The cooling sand pipe 620, the cooling sand pipe 620 communicates with the outlet of the cooling sand box 610, the cooling sand pipe 620 is disposed on one side of the second conveyor belt 400 and extends along the length direction of the second conveyor belt 400, three sand outlets are correspondingly disposed on the sand pipe, and each sand outlet corresponds to one ferris wheel body 360.

The blade bearing plates 630, the blade bearing plates 630 are three, each blade bearing plate 630 is arranged below a corresponding ferris wheel body 360, the blade bearing plates 630 are obliquely arranged, and the outlets of the blade bearing plates 630 are close to the second conveyor belt 400; wherein when the ferris wheel body 360 rotates and conveys the aero-engine blade 700 to above the blade receiving plate 630 after the welding of the aero-engine blade 700 is completed, the aero-engine blade 700 falls down and slides to the second conveyor belt 400 through the blade receiving plate 630, and the cooling sand flowing out of the outlet of the cooling sand pipe 620 covers the aero-engine blade 700.

By adopting the technical scheme, after welding, the aero-engine blade 700 can be rapidly cooled by cooling sand, and the following needs to be described: the blade receiving plate 630 is provided with three numbers corresponding to the ferris wheel body 360.

Specifically, the cooling sand box 610 stores cooling sand, the cooling sand can flow to the sand outlet through the cooling sand pipe 620, when the welding and the preliminary cooling of the aero-engine blade 700 are completed, the blade receiving plate 630 receives the aero-engine blade 700 first, then the aero-engine blade 700 slides down onto the second conveyor belt 400, and the cooling sand flowing out from the outlet of the cooling sand pipe 620 covers the aero-engine blade 700 and is uniformly cooled.

The application further discloses a welding device for the ferris wheel of the aero-engine blade, which further comprises: the clamping robot control cabinet 910, the clamping robot control cabinet 910 is disposed at one side of the clamping robot 100 and electrically connected with the clamping robot 100.

Welding robot control cabinet 920, welding robot control cabinet 920 is disposed at one side of welding robot 500 and electrically connected with welding robot 500.

The total control cabinet 930, the interior of the total control cabinet 930 is provided with a central controller.

The monitoring device 960, the monitoring device 960 is used for monitoring each step in the welding process of the aero-engine blade 700, and processing the problems or faults in time.

It should be noted that the welding device of the present application further includes a control system, which may be, for example, a control computer, a SIMATIC S7-1500CPU control module, a PLC controller, etc., and further includes a switching value I/O module, a text screen, etc. The working mode is specifically described as follows:

The control system is responsible for the coordination control of the whole system, and coordinates the orderly work of the triple servo system, the servo motor thereof, the triple ferris wheel rotation, the clamping robot 100, the welding robot 500, the first conveyor belt 200, the second conveyor belt 400, the welding gun quick-change system, the tungsten electrode polishing system, the welding wire changing system, the cooling sand circulation system, the monitoring system and the like. The switching value I/O module is responsible for the collection and control of the conformal red copper mold 370 and the blowing system signal, the control signal of the conveyor belt driving motor 340, the cooling sand circulation system motor and the sand discharging signal, the start-stop signal of the clamping robot 100 and the welding robot 500, the blade ferris wheel rotation start-stop signal, the pick-up/clamping visual signal and the welding visual system signal. The display screen is also provided to provide control logic and parameter setting for the coordination control of the whole machine.

Still further, the driving motor 340 is configured as a servo motor, and the driver of the servo motor may include a servo driver, a servo motor, a worm gear mechanism, and an angle sensor (for example, an absolute value circular grating), where the PLC is in communication with a triple servo system (corresponding to a triple ferris wheel), and the triple servo system controls the corresponding triple servo motor, and the triple servo motor drives the worm gear and worm gear respectively, so that the ferris wheel is driven to rotate independently; the angle sensor is mounted on the rotation shaft 330 of the blade ferris wheel, and measures the rotation angle of the ferris wheel in real time, for example, 3 °, 3.6 °, 4 °, 5 ° or other angles each time, and the triple ferris wheel rotates independently, and the control logic is coordinated by the PLC.

Further, it should be noted that the device also includes a monitoring system, where the monitoring system includes a monitoring device 960, 2 panoramic cameras, and 1 clamping robot monitoring camera; 1 welding robot monitoring camera; 1 welding gun quick-change and straight wire changing process cameras; 1 tungsten electrode coping and welding wire ball forming shearing camera; 2 large screen liquid crystal display.

The specific working process is as follows: 2 panoramic cameras monitor the working state of the whole machine; the 1 clamping robot monitoring camera is specially used for monitoring the working process of the clamping robot 100; the monitoring cameras of the 1 welding robot are specially used for monitoring the welding process of the welding robot; the monitoring cameras of the welding gun quick-change and the straight wire replacement process are in full time charge of monitoring the working processes of the welding gun quick-change system and the straight wire replacement system; 1 tungsten electrode grinding and welding wire ball forming shearing cameras monitor the tungsten electrode grinding process and the welding wire ball forming shearing process in full time; and 2, switching and displaying the monitoring pictures of the monitors by using the large-screen liquid crystal display, and recording and storing.

In summary, the present application is capable of efficiently welding the aircraft engine blade 700 by providing a welding device for aircraft engine blade ferris wheel comprising a clamping robot 100, a first conveyor belt 200, a blade ferris wheel assembly 300, a second conveyor belt 400, a welding robot 500 and a cooling sand circulation assembly 600, in the process of operation, the first conveyor belt 200 is firstly conveying the non-welded aircraft engine blade 700, the clamping robot 100 is capable of mounting and clamping the aircraft engine blade 700 on the first conveyor belt 200 on the blade ferris wheel assembly 300, the aircraft engine blade 700 is driven to rotate by rotating the blade ferris wheel assembly 300, the aircraft engine blade 700 is moved to a welding position by clamping displacement, and welding is realized by the welding robot arm 510, in the process of welding, the aircraft engine blade 700 is cooled by blowing air by using a cooling air blowing loop, and is conveyed to the second conveyor belt 400 after the welding is completed, and is cooled by the cooling sand circulation assembly 600, and the non-welded aircraft engine blade 700 is conveyed by the first conveyor belt 200, the welding robot blade 700 is conveyed by the second conveyor belt 400, the welding robot blade 700 is conveyed by the cooling sand circulation assembly, the welding robot blade 700 is carried out, the welding robot blade is carried out by rotating the welding robot arm, the welding robot blade has high precision, the welding robot blade 700 is carried out, the welding robot blade has high precision, and the welding robot blade 700 is carried out, and the welding robot blade has high precision, and the welding robot blade is welded by rotating the welding robot blade, and has high precision, and high speed, and the welding precision, and the welding machine and has high speed and welding precision. High efficiency, high speed, high precision, and high automation processing of the aircraft engine blade 700 is achieved.

While specific embodiments of the invention have been described above, other advantages and effects of the invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in connection with the preferred embodiments, it is not intended to limit the invention to the particular embodiments disclosed. Rather, the invention has been described in connection with specific embodiments thereof, and is intended to cover other alternatives or modifications, which may be extended by the claims based on the invention. The foregoing description will contain numerous specific details in order to provide a thorough understanding of the present invention. The invention may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present invention.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the invention with reference to specific embodiments, and it is not intended to limit the practice of the invention to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present invention.

Claims

1. The welding device for the ferris wheel of the aero-engine blade is characterized by comprising a clamping robot, a first conveyor belt, a ferris wheel assembly of the blade, a second conveyor belt, a welding robot and a cooling sand circulation assembly which are sequentially arranged at intervals along a first direction; wherein the method comprises the steps of

The clamping robot is provided with a clamping mechanical arm capable of moving and steering; the first conveyor belt is positioned at one side of the clamping robot and extends along a second direction perpendicular to the first direction; the welding robot is positioned on one side, far away from the blade ferris wheel assembly, of the second conveyor belt, a welding mechanical arm capable of moving and steering is arranged on the welding robot, and the cooling sand circulation assembly is positioned on one side, far away from the blade ferris wheel assembly, of the second conveyor belt; wherein the method comprises the steps of

The periphery of the blade ferris wheel assembly is provided with a plurality of moulds for placing the aeroengine blades, the blade ferris wheel assembly rotates and drives the moulds and the aeroengine blades to rotate, the first conveyor belt, the second conveyor belt and the blade ferris wheel assembly are all arranged in an extending mode along the second direction, the first conveyor belt conveys the unwelded aeroengine blades, and the second conveyor belt conveys the welded aeroengine blades; the blade ferris wheel assembly comprises a triple ferris wheel, the triple ferris wheel comprises three blade ferris wheel groups, and the three blade ferris wheel groups are sequentially arranged at intervals along the second direction;

the triple ferris wheel further comprises two bases which are arranged along the second direction and positioned at two ends of the length direction of the three blade ferris wheel groups, each base is provided with a bearing seat, each bearing seat is provided with a rotating bearing and a rotating shaft, and each rotating shaft sequentially penetrates through the three blade ferris wheel groups along the second direction and is respectively and rotatably connected with each blade ferris wheel group;

each blade ferris wheel group comprises a driving motor, a worm gear mechanism and a ferris wheel body, wherein the worm gear mechanism comprises a worm and a worm wheel which are in transmission connection, the worm is connected with the output end of the driving motor, the worm wheel is connected with the rotating shaft and the ferris wheel body, and the axes of the rotating shaft, the worm wheel and the ferris wheel body are coincident; and is also provided with

The ferris wheel body is in a circular wheel disc shape, the radial direction of the ferris wheel body is arranged along the vertical direction, the periphery of each ferris wheel body is provided with a plurality of dies, the dies are uniformly and alternately arranged along the outermost periphery of the ferris wheel body, each die is provided with a blade groove matched with an aeroengine blade, and the position, close to the blade groove, of one side of each die is correspondingly provided with a cooling blowing loop;

the die comprises red copper dies, each red copper die is arranged along the radial direction of the periphery of the ferris wheel body, a blade groove is formed in the middle of each red copper die, the blade groove is matched with the aircraft engine blade and is used for detachably placing the aircraft engine blade, and the die further comprises

The blade pneumatic clamping mechanisms are at least correspondingly arranged on one side of each red copper die, and each blade pneumatic clamping mechanism comprises an air cylinder, a pneumatic element, an action rod and a blade compression rod; wherein the method comprises the steps of

The output end of the air cylinder is in transmission connection with the pneumatic element, the pneumatic element is in rotatable connection with the action rod, the action rod is in rotatable connection with the blade pressing rod, the end part of the blade pressing rod is rotatably arranged at one side of the red copper die, which is close to the blade groove, and the pneumatic element, the action rod and the blade pressing rod form a connecting rod mechanism; and is also provided with

The two side ends of the red copper die are respectively provided with one blade pneumatic clamping mechanism, and the two blade pneumatic clamping mechanisms are fixedly arranged at the two ends of the aero-engine blade in the blade groove; and is also provided with

The cooling sand circulation assembly includes:

the cooling sand box is funnel-shaped;

the cooling sand pipe is communicated with the outlet of the cooling sand box, is arranged on one side of the second conveyor belt and extends along the length direction of the second conveyor belt, and is correspondingly provided with three sand outlets, and each sand outlet corresponds to one ferris wheel body;

the blade bearing plates are provided with three blades, each blade bearing plate is arranged below a corresponding ferris wheel body, each blade bearing plate is obliquely arranged, and an outlet of each blade bearing plate is close to the second conveyor belt; wherein the method comprises the steps of

When the welding of the aircraft engine blade is completed, the ferris wheel body rotates and conveys the aircraft engine blade to the upper part of the blade bearing plate, the aircraft engine blade falls off and slides to the second conveyor belt through the blade bearing plate, and cooling sand flowing out of the outlet of the cooling sand pipe covers the aircraft engine blade.

2. The aircraft engine blade ferris wheel welding apparatus according to claim 1, wherein said cooling and blowing circuit includes an air dryer, an air compressor, a gas collector, and a gas blowing tube; wherein the method comprises the steps of

The air outlet of the air dryer is communicated with the air inlet of the air compressor, the air outlet of the air compressor is communicated with the air inlet of the gas collector, the gas collector is arranged on the ferris wheel body and radially extends to the position where the red copper die is located, the air outlet of the gas collector is respectively communicated with the air blowing pipe, and the air blowing pipe is fixedly arranged on the red copper die; and is also provided with

Two air blowing pipes are arranged on each red copper mold, and the air outlet of each air blowing pipe points to the welding position of the aero-engine blade.

3. The welding device for the ferris wheel of the aircraft engine blade according to claim 1, wherein 100 red copper dies are arranged on each ferris wheel body, and the 100 red copper dies are uniformly and at intervals along the periphery of the ferris wheel body.

4. The aircraft engine blade ferris wheel welding apparatus according to claim 1, wherein the clamping robot includes a robot base and the clamping robot arm, the clamping robot arm is rotatably disposed on the robot base, a clamping jaw and a clamping vision monitor are disposed at an end of the clamping robot arm away from the robot base, and an end of the clamping robot arm provided with the clamping jaw is movable between the first conveyor belt and the blade ferris wheel assembly; wherein the method comprises the steps of

The clamping jaw is matched with the aero-engine blade and can be relatively opened or closed;

a plurality of aero-engine blades are placed on the first conveyor belt and are sequentially conveyed, the clamping jaw is relatively opened and grabs one of the aero-engine blades on the first conveyor belt and is transferred to the red copper die, and when the aero-engine blades are placed in the blade grooves, two blade pneumatic clamping mechanisms located at two side end parts of the red copper die act and are respectively fixed with the aero-engine blades.

5. The aircraft engine blade ferris wheel welding apparatus according to claim 1 wherein said welding robot includes a welding robot arm and a welding gun assembly; wherein the method comprises the steps of

The welding gun assembly is detachably arranged at one end, close to the ferris wheel body, of the welding mechanical arm, welding visual monitoring is further arranged at one side of the welding gun assembly, and one end, provided with the welding gun assembly, of the welding mechanical arm can move between the second conveyor belt and the blade ferris wheel assembly; and is also provided with

The welding gun quick-change mechanism comprises a welding gun quick-change platform, at least three standby welding gun heads are arranged on the welding gun quick-change platform, and a pneumatic quick-change groove is formed in the end part of each welding gun head; wherein the method comprises the steps of

6. The welding device for the ferris wheel of the aero-engine blade according to claim 1, further comprising a tungsten electrode grinding table, wherein one side of the tungsten electrode grinding table is further provided with a tungsten electrode filament storage matrix library; wherein the method comprises the steps of

The tungsten electrode grinding table comprises a workbench, wherein a grinding wheel, a standard height table, a length detector and a wire cutting machine are sequentially arranged on the workbench, the grinding wheel is rotatably arranged on the workbench, and an inclined friction workbench surface is arranged on the grinding wheel.

7. The aircraft engine blade ferris wheel welding apparatus according to claim 1, further comprising:

the clamping robot control cabinet is arranged on one side of the clamping robot and is electrically connected with the clamping robot;