CN114487090A - Framework integral magnetic powder flaw detection device and method - Google Patents

Abstract

The invention discloses a framework integral magnetic powder inspection device which comprises a conveying trolley, wherein a lifting overturning unit comprises two lifting overturning machines, the conveying trolley is used for conveying a framework in a protective chamber and between the two lifting overturning machines, and a magnetizing device and a magnetic suspension spraying system are arranged in the protective chamber; every lift upset machine all includes the base, the movable support, gyration supporting seat and a rotary chuck, be provided with linear guide on the base, the bottom and the linear guide sliding fit of movable support, be provided with first driving motor on the movable support, the driving gear has set firmly on first driving motor's the output shaft, the driving gear meshes with the rack that sets up on the base, be provided with on the movable support through the second driving motor that lead screw nut mechanism drive gyration supporting seat goes up and down along the movable support, the gyration supporting seat sets firmly and is used for driving rotary chuck pivoted swing pneumatic cylinder. The invention improves the efficiency of integral flaw detection of the framework.

Description

Framework integral magnetic powder flaw detection device and method

Technical Field

The invention relates to the technical field of vehicle detection and flaw detection, in particular to a framework integral magnetic powder flaw detection device and method.

Background

The bogie is one of the most critical components of the rail transit vehicle, and the framework is used as a core component of the bogie and plays roles in connecting functional components, bearing load and transmitting forces in all directions, so that strict requirements are imposed on the welding quality of the framework. The magnetic powder inspection is used as a common detection mode for defects on the surface and near surface of a welding seam in the production and manufacturing process of a bogie frame, and the flaw detection device and the flaw detection operation method thereof not only influence the judgment of the defects on the welding seam of the frame, but also influence the production efficiency of the frame. The frame production manufacturing process is that after the frame is welded and scribed and adjusted, the whole frame is subjected to magnetic powder inspection once to confirm the quality of a welding seam.

At present, the magnetic powder inspection of the rail industry framework is mainly in a manual operation mode, and the adopted component is Fe₃O₄The black magnetic suspension is used for improving the contrast between the defect magnetic marks and the surface color of a workpiece, a layer of white contrast reinforcing agent is sprayed on a detected part before flaw detection, then the black magnetic suspension is sprayed by one hand of a flaw detector, the flaw detection equipment is operated by the other hand, and the aggregation state of magnetic powder on the surface of a welding line is observed. By adopting the flaw detection mode, when the framework is produced in large batch, on one hand, the flaw detection efficiency is low due to more welding seams on the surface of the framework, and the capacity requirement of the framework is seriously limited; meanwhile, the labor intensity of a flaw detector is high, and the dust generated by spraying the contrast enhancer and the magnetic suspension can influence the health of the flaw detector; on the other hand, the color of the black magnetic suspension is closer to that of the steel plate, the flaw detection sensitivity is not high, and during flaw detection, the weld joint at a special structure position on the frame is locally positioned, the accessibility of flaw detection equipment is not high, the condition of missed detection exists, the flaw detection accuracy of the whole frame is influenced, the quality of the frame weld joint is influenced, the judgment on the frame weld joint defect is further influenced, and the welding is further influencedSeam quality.

Disclosure of Invention

The invention aims to provide a framework integral magnetic powder flaw detection device and a framework integral magnetic powder flaw detection method, which are used for solving the problems in the prior art and improving the sensitivity and efficiency of integral flaw detection of a framework.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a framework integral magnetic powder flaw detection device which comprises a conveying trolley, a protection chamber and a lifting overturning unit positioned outside the protection chamber, wherein the lifting overturning unit comprises two lifting overturning machines;

each lifting turnover machine comprises a base, a moving support, a rotary support seat and a rotary chuck, wherein a linear guide rail is arranged on the base, the bottom end of the moving support is in sliding fit with the linear guide rail, a first driving motor is arranged on the moving support, a driving gear is fixedly arranged on an output shaft of the first driving motor and is meshed with a rack arranged on the base, the rack is parallel to the linear guide rail, the length direction of the linear guide rail is vertical to the motion direction of the conveying trolley, a second driving motor for driving the rotary support seat to lift along the moving support through a screw and nut mechanism is arranged on the moving support, a swing hydraulic cylinder is fixedly arranged on the rotary support seat and is used for driving the rotary chuck to rotate; the two rotary chucks are oppositely arranged.

Preferably, the rotary chuck comprises a clamping support, a fixed rod and two clamping mechanisms, one end of the clamping support is fixedly connected with the output end of the swing hydraulic cylinder, a rotary compression cantilever is fixedly arranged on the swing hydraulic cylinder, the rotary compression cantilever is a sleeve, and the clamping support penetrates through the rotary compression cantilever and is in running fit with the rotary compression cantilever through a bearing; the fixed rod is vertical and fixedly arranged at one end of the clamping bracket far away from the swing hydraulic cylinder, and the two clamping mechanisms are respectively positioned at the upper side and the lower side of the clamping bracket; the clamping mechanism comprises a clamping hydraulic cylinder and a V-shaped rod, the tip of the corner of the V-shaped rod is hinged with the fixed rod, one end of the clamping hydraulic cylinder is hinged with the clamping support, the other end of the clamping hydraulic cylinder is hinged with one end of the V-shaped rod, a pressing plate is arranged at the other end of the V-shaped rod, and the opening of the V-shaped rod faces to one side far away from the fixed rod; and one end of the clamping bracket, which is far away from the swing hydraulic cylinder, is fixedly provided with an interface for butting with the framework.

Preferably, a rotating device is arranged on the conveying trolley and comprises a rotating speed reduction motor, a positioning plate and a rotating support plate, the rotating speed reduction motor is fixedly arranged on the conveying trolley, the positioning plate is fixedly connected with an output shaft of the rotating speed reduction motor through an upper hinge plate, the positioning plate is fixedly connected with the rotating support plate, the rotating support plate is positioned below the positioning plate, and the rotating support plate is rotatably connected with a bearing seat fixedly arranged on the conveying trolley through a bearing; the positioning plate is provided with a positioning pin for positioning the supporting device or a limiting mechanism for limiting the supporting device, and the supporting device is used for supporting the framework.

Preferably, the device also comprises a trolley guide rail, one end of the trolley guide rail is positioned between the two lifting turnover machines, the other end of the trolley guide rail is positioned below the magnetic suspension spraying system, and the conveying trolley travels on the trolley guide rail; the middle part of platform truck guide rail is provided with the arch that slows down, just it protruding with between the magnetic suspension spray system there is 2 contained angle between platform truck guide rail and the horizontal direction to slow down.

Preferably, the magnetic suspension spraying system comprises a magnetic suspension storage tank, a flow control device, at least one transverse spraying pipe and at least one longitudinal spraying pipe, wherein the transverse spraying pipe and the longitudinal spraying pipe are both provided with a spray head and are both connected with copper pipes, and the other ends of the copper pipes are connected with the spray heads; flow control device includes the trunk line, and is different horizontal shower and difference vertical shower through the branch pipe of difference with the trunk line intercommunication, every all be provided with flow control valve on the branch pipe, be provided with spray water pump on the trunk line.

Preferably, still include magnetic suspension recovery unit, magnetic suspension recovery unit is including setting up at collecting plate and liquid collecting tray, the collecting plate is located the bottom of guard room, the collecting plate is outer high in low and the centre is provided with the breach, the edge of liquid collecting tray with breach sealing connection, the minimum department of liquid collecting tray is provided with the collecting opening, the collecting opening through return the liquid pipe with magnetic suspension storage tank intercommunication, be provided with the liquid water pump that returns on the liquid pipe.

Preferably, the protection room is closed, a lifting door is arranged on the side wall of the protection room, and when the lifting door is opened, the conveying trolley can enter and exit the protection room.

Preferably, a hydraulic power pack for supplying hydraulic oil to the swing hydraulic cylinder is further fixedly arranged on the rotary support seat.

Preferably, the conveying trolley is provided with a proximity switch electrically connected with a traveling motor of the conveying trolley, and when the conveying trolley reaches the feeding and discharging and observing station between the two lifting turnover machines and the spraying station below the magnetic suspension spraying system, the proximity switch can be triggered and the traveling motor is closed.

The invention also provides a framework integral magnetic powder inspection method, based on the framework integral magnetic powder inspection device, comprising the following steps:

(1) hoisting a framework to be subjected to flaw detection to a conveying trolley by using a hoisting tool, then opening the conveying trolley, conveying the framework to the position below a magnetic suspension spraying system of a protection chamber, and sealing the protection chamber;

(2) starting a magnetizing device in the protection chamber, magnetizing the framework, and spraying fluorescent magnetic suspension on the framework through a magnetic suspension spraying system in the magnetizing process;

(3) after the spraying is finished, the magnetic suspension spraying system is shut down to stop spraying the framework, and then the framework is stopped from being magnetized;

(4) opening the protection chamber, then starting the conveying trolley, conveying the framework between the two lifting turnover machines, enabling flaw detection workers to hold an ultraviolet lamp to irradiate the framework to observe the state of a welding seam on the framework, and marking the defect position on the welding seam;

(5) in the process that a flaw detection worker observes the framework, the framework is clamped through two rotary chucks in the lifting and overturning unit, and the framework is overturned through the lifting and overturning unit, so that the flaw detection worker can conveniently observe the framework;

(6) after the observation is finished, the framework is placed back to the supporting device of the conveying trolley through the lifting turnover unit;

(7) starting the conveying trolley, conveying the framework into the protective chamber, demagnetizing the framework by using the magnetizing device, and after demagnetization is completed, conveying the framework to the outside of the protective chamber by using the conveying trolley;

(8) the frame is lifted out by the spreader and then transferred to the next process.

Compared with the prior art, the invention has the following technical effects:

the framework integral magnetic powder flaw detection device and method improve the sensitivity and efficiency of integral flaw detection of the framework. The invention sprays the magnetic suspension on the framework through the magnetic suspension spraying system, thereby greatly improving the efficiency compared with the manual spraying in the prior art; in the invention, the fluorescent magnetic suspension is adopted to spray the framework without dead angles, so that serious splashing can not be caused, if surface or near-surface defects exist in the welding line of the framework, magnetic powder aggregation can occur, yellow-green fluorescence can be found under the radiation of a handheld high-intensity ultraviolet lamp, high contrast is formed between the yellow-green fluorescence and the surface color of the framework, the flaw detection structure can be accurately and clearly observed, and the detection speed is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a first schematic structural view of a frame-integrated magnetic particle inspection apparatus according to the present invention;

FIG. 2 is a second structural schematic diagram of the integrated magnetic particle inspection apparatus of the framework of the present invention;

FIG. 3 is a schematic view of a part of the structure of the integral magnetic powder inspection device with the framework of the invention;

FIG. 4 is a first schematic structural view of a mobile trolley in the framework integrated magnetic particle inspection device of the present invention;

FIG. 5 is a second schematic structural view of a mobile trolley in the framework integrated magnetic particle inspection device of the present invention;

FIG. 6 is a first schematic structural view of a lifting and turning machine in the framework integrated magnetic powder inspection device of the present invention;

FIG. 7 is a second structural schematic diagram of a lifting tilter in the integral magnetic powder inspection device of the framework of the invention;

FIG. 8 is a third schematic structural view of a lifting and turning machine in the framework integrated magnetic powder inspection device of the present invention;

FIG. 9 is a first schematic view of a part of the structure of a lifting and turning machine in the framework integrated magnetic powder flaw detection device of the invention;

FIG. 10 is a schematic view showing the structure of a flow control device in the framework monolithic magnetic particle inspection apparatus according to the present invention;

FIG. 11 is a schematic structural view of a magnetic suspension spraying system in the framework integrated magnetic powder inspection apparatus of the present invention;

FIG. 12 is a second partial schematic view of the magnetic powder inspection apparatus with the integral frame of the present invention;

FIG. 13 is a third schematic view of a partial structure of the framework integrated magnetic particle inspection apparatus of the present invention;

FIG. 14 is a fourth partial schematic view showing the structure of the magnetic particle inspection apparatus of the present invention;

FIG. 15 is a schematic view showing a part of the structure of the whole magnetic powder flaw detection apparatus of the framework of the present invention;

wherein: 1. loading and unloading and observing stations; 11. a lifting tilter; 111. a linear guide rail; 112. a slide base; 113. rotating the compression cantilever; 1140. pressing a plate; 1141. a V-shaped rod; 1142. a hydraulic power pack; 1143. fixing the rod; 1144. clamping a hydraulic cylinder; 1145. clamping the bracket; 1146. an interface; 1147. a swing hydraulic cylinder; 1133. a rotary supporting seat; 114. moving the support; 115. a first drive motor; 116. a nut screw; 117. a second drive motor; 118. a base; 119. a pulley; 12. a conveying trolley; 121. a vehicle body; 122. a turning device; 1231. a rotary speed reduction motor; 1232. a gear motor bottom plate; 1233. a thrust ball bearing; 1234. a spline guide sleeve; 1235. a spline; 1236. an upper hinged disk; 1237. a middle hinge shaft; 1238. a spline housing; 1239. positioning pins; 1240. positioning a plate; 1241. rotating the support plate; 1242. mounting a plate; 1243. a bearing seat; 1244. a shaft sleeve; 1245. briquetting; 2. spraying stations; 21. a lift gate; 22. a magnetic suspension storage tank; 23. a protection room; 24. a magnetic suspension liquid recovery device; 241. a collection plate; 242. a liquid collecting tray; 243. a liquid collecting hole; 25. a magnetizing device; 26. a magnetic suspension liquid spraying system; 261. a longitudinal spray pipe; 262. a nozzle; 263. a copper pipe; 264. a transverse spray pipe; 265. a flow control device; 2651. a main pipeline; 2652. branch pipelines; 2653. a flow control valve; 3. a control cabinet; 4. a trolley guide rail; 41. a deceleration protrusion; 5. a frame; 6. a guardrail; 7. a foundation; 8. a proximity switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The invention aims to provide a framework integral magnetic powder flaw detection device and a framework integral magnetic powder flaw detection method, which are used for solving the problems in the prior art and improving the sensitivity and efficiency of integral flaw detection of a framework.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1 to 15: the embodiment provides a framework integrated magnetic particle inspection device which comprises a conveying trolley 12, a protection room 23 and a lifting and overturning unit positioned outside the protection room 23. The conveying trolley 12 is used for conveying the framework 5 in the protective chamber 23 and between the two lifting turnover machines 11, and a magnetizing device 25 for magnetizing the framework 5 and a magnetic suspension spraying system 26 for spraying magnetic suspension to the framework 5 are arranged in the protective chamber 23; the lifting and overturning unit is used for overturning and lifting the framework 5 on the conveying trolley 12.

Wherein, the conveying trolley 12 consists of a trolley body 121 and a rotating device 122; the trolley body 121 moves on the trolley guide rail 4 in a mode that a walking motor drives a walking wheel to rotate through chain transmission;

the revolving device 122 includes a revolving gear motor 1231, a positioning plate 1240 and a rotating support plate 1241, the revolving gear motor 1231 is fixedly connected with a gear motor bottom plate 1232, and the gear motor bottom plate 1232 is fixedly connected with the vehicle body 121 through bolts; the output shaft of the rotary speed reducing motor 1231 is provided with a spline 1235, the matching part of the spline 1235 and the spline housing 1238 is an external spline 1235 structure, the axial direction of the spline 1235 is vertical to the horizontal plane, the lower end of the spline housing 1238 is provided with an internal spline 1235 structure matched with the spline 1235 along the axial direction on the central axis thereof, the spline housing 1238 is matched with the spline 1235 to form a spline 1235 connection, and the rotary speed reducing motor 1231 drives the lower spline housing 1238 to rotate along with the rotation of the output shaft of the rotary speed reducing motor 1231. The upper end of the spline housing 1238 is provided with a groove, the spline housing 1238 is matched with a rib plate arranged on the upper hinge plate 1236, a certain gap is reserved, a round hole is formed in the direction perpendicular to the side face of the groove, a cylindrical hole perpendicular to the side vertical face of the rib plate is formed in the rib plate of the upper hinge plate 1236, the spline housing 1238 is connected with the upper hinge plate 1236 through the middle hinge shaft 1237, the shaft sleeve 1244 is installed on the middle hinge shaft 1237 in a position matched with the upper hinge plate 1236, and the middle hinge shaft 1237 and the spline housing 1238 are limited by pinning for preventing the middle hinge shaft from moving. An annular groove is formed in the upper portion of the bearing seat 1243, and the lower portion of the thrust ball bearing 1233 is placed in the annular groove formed in the bearing seat 1243; a circular boss is arranged on the bottom surface of the bearing seat 1243, the circular boss and the bearing seat 1243 are arranged concentrically, a round hole is formed in the center of the bearing seat 1243, a boss structure arranged on the rotary speed reducing motor 1231 penetrates through the round hole formed in the center of the bearing seat 1243, and the step surface of the rotary speed reducing motor 1231 is in contact with the bottom surface of the boss feature of the bearing seat 1243 and used for positioning and supporting the bearing seat 1243; the mounting plate 1242 is fixedly connected to the vehicle body 121 and is connected through screw connection or welding, a round hole is formed in the middle of the mounting plate 1242, and the mounting plate is sleeved on the outer diameter of the bearing seat 1243 and used for supporting the bearing seat 1243 along the radial direction, so that the bearing seat 1243 is firm and reliable and does not incline in the rotary motion process. The spline guide sleeve 1234 is arranged outside the spline sleeve 1238, and the spline guide sleeve 1234 is fastened to the bearing seat 1243 by bolts. The lower part of the rotary support plate 1241 is provided with a sinking platform structure which is matched with the upper part of the thrust ball bearing 1233, and when the rotary support plate 1241 rotates, the rotary support plate 1241 and the bearing seat 1243 rotate relatively under the action of the thrust ball bearing 1233; at least 1 press block 1245 is screwed on the positioning plate 1240, a flanging boss structure is processed on the press block 1245, the boss structure is suspended at the peripheral boundary position of the rotary supporting plate 1241 and a certain gap is reserved, so that the supporting plate is prevented from tipping due to unbalanced force in the magnetizing spraying rotation process of the framework 5; the positioning plate 1240 is provided with a flanging hole, and is fastened and connected with the upper hinge plate 1236 through a bolt, and the positioning plate 1240 is placed on the rotating support plate 1241 and is fixed with the rotating support plate 1241 through a bolt. The locating plate 1240 is provided with two at least locating pins 1239, matches with the location round hole of seting up on the strutting arrangement for the location strutting arrangement, set up threaded hole on the locating plate 1240, match with the installation round hole of seting up on the strutting arrangement, through spiro union mode with strutting arrangement and locating plate 1240 fastening connection.

Travel limit switches are symmetrically arranged on the upper circumference of the rotating support plate 1241, and the stop of the rotating part of the rotating device 122 can be controlled by setting the number of turns of rotation through program control; the revolving device 122 can rotate 360 degrees around its central axis or be stationary under the driving of the revolving speed-reducing motor 1231; the magnetic suspension liquid spraying device is matched with the frame 5 to complete the operations of magnetizing and spraying the magnetic suspension liquid at the spraying station 2, so that all parts of the frame 5 are ensured to be uniformly sprayed on the magnetic suspension liquid, the accumulation or omission of the magnetic suspension liquid on a workpiece is effectively prevented, and the formation and observation of magnetic marks are prevented from being influenced; meanwhile, when the welding seam state of the framework 5 is observed at the feeding and discharging and observation station 1, when one side is observed and the other side is required to be observed, an operator does not need to wind the other side of the framework 5, the framework 5 only needs to rotate, and the side to be observed is rotated to the front of the operator, so that the labor intensity of the worker is reduced.

The supporting device is stably and firmly placed on the rotating device 122 and detachably connected with the rotating device 122, the supporting device is accurately positioned through a positioning pin 1239 or a limiting mechanism and is driven by the rotating device 122 to rotate, the supporting device is used for positioning and supporting the framework 5, when the framework 5 with different structural types needs to be inspected, the supporting device matched with the corresponding framework 5 in structure is manufactured and replaced again, and the diversity of the inspection of the framework 5 is realized; and the supporting device has simple integral structure, short manufacturing period and low production cost, and is beneficial to reducing the preparation period and the cost investment of the early stage of a new project.

The conveying trolley 12 is provided with two proximity switches 8 which are respectively electrically connected with a traveling motor of the conveying trolley 12, one proximity switch 8 is triggered when the conveying trolley 12 reaches the feeding and discharging and observation station 1 in the middle of the two lifting turnover machines 11, the other proximity switch 8 can be triggered when the conveying trolley 12 reaches the spraying station 2 below the magnetic suspension spraying system 26, and each proximity switch 8 can be triggered and close the traveling motor after being triggered.

The whole magnetic powder inspection device of the framework of the embodiment also comprises a trolley guide rail 4 corresponding to the conveying trolley 12, one end of the trolley guide rail 4 is positioned between the two lifting tillers 11, the other end of the trolley guide rail 4 is positioned below the magnetic suspension spraying system 26, and the conveying trolley 12 runs on the trolley guide rail 4; the middle part of the trolley guide rail 4 is provided with a speed reduction bulge 41, the conveying trolley 12 can be decelerated when passing through the speed reduction bulge 41 on the trolley guide rail 4, a 2-degree included angle exists between the trolley guide rail 4 between the speed reduction bulge 41 and the magnetic suspension spraying system 26 and the horizontal direction, and after the conveying trolley 12 is stopped in the protective chamber 23, the speed reduction bulge 41 and the non-horizontal guide rail at the front end act together to enable the conveying trolley 12 to form a 5-degree included angle with the horizontal plane. The trolley guide rail 4 is horizontal from the lifting turnover machine 11 to the position of the speed reducing protrusion 41, the upper plane of the speed reducing protrusion 41 is horizontal, the trolley guide rail 4 is not horizontal after passing through the speed reducing protrusion 41, but has a certain included angle with the horizontal plane, when the conveying trolley 12 is stopped in the protective chamber 23, the protrusion mechanism and the non-horizontal guide rail at the front end act together, so that the conveying trolley 12 forms an included angle of 5 degrees with the horizontal plane, even if the framework 5 forms an included angle of 5 degrees with the horizontal plane when being sprayed and magnetized. Namely, the trolley guide rail 4 between the deceleration protrusion 41 and the magnetic suspension spraying system 26 is obliquely arranged, so that the conveying trolley 12 and the framework 5 can be in an oblique state, the magnetic suspension sprayed on the framework 5 can be fully drained, and no accumulated liquid flows when the framework 5 is conveyed to the loading, unloading and observing station 1, so that the formation of magnetic marks and the observation of the magnetic marks are not influenced; it should be noted that when the conveyance carriage 12 needs to stay on the inclined carriage rail 4, the conveyance carriage 12 can be prevented from slipping by controlling the traveling motor of the conveyance carriage 12 to be locked.

In this embodiment, the protection chamber 23 plays a role of preventing the magnetic suspension from splashing around when the magnetic suspension is sprayed, the side wall of the protection chamber 23 is provided with the lifting door 21, and when the lifting door 21 is opened, the conveying trolley 12 can enter and exit the protection chamber 23; however, when the magnetic suspension is sprayed, the lift gate 21 needs to be lowered to seal the protection chamber 23 and prevent the magnetic suspension from splashing around. The protective chamber 23 is of an integral frame welding structure, is covered with steel plates outside, has enough rigidity and strength, and plays roles of supporting, running and beautifying the equipment; the protective chamber 23 and the lifting door 21 play a role in protecting the framework 5 when spraying the magnetic suspension, and prevent the magnetic suspension from splashing everywhere to cause adverse effects on the working environment; when the lifting door 21 is lifted, a steel rope is pulled by an air cylinder, and when the lifting door 21 is closed, the lifting door is closed by the self weight of the lifting door 21.

Magnetic suspension spraying system 26 includes magnetic suspension storage tank 22, flow control device 265, four horizontal shower 264 and two vertical shower 261, all be provided with the shower nozzle on horizontal shower 264 and the vertical shower 261 and all be connected with copper pipe 263, the other end of copper pipe 263 is connected with the shower nozzle, copper pipe 263 has certain length and can take place to buckle, position and the direction of nozzle 262 hydrojet mouth on the adjustable copper pipe 263 of copper pipe 263 through buckling, the position is difficult being sprayed to the position to local structure on framework 5, the position and the direction of accessible adjustment nozzle 262 hydrojet mouth carry out the pertinence and spray, avoid the condition that exists the hourglass on the framework 5 and spout. The framework 5 is matched with the rotation of the framework in the spraying process to ensure that the surface of the framework 5 is completely sprayed, the aim of ensuring that the coverage rate of magnetic powder flaw detection of the outer leakage welding line of the framework 5 reaches 100 percent is achieved, and the quality of the welding line of the framework 5 is effectively controlled;

the magnetic suspension storage tank 22 is made of stainless steel and is additionally provided with a stirring device to prevent magnetic powder in the magnetic suspension from precipitating. Magnetic suspension storage tank 22 is equipped with level sensor, and the liquid level is less than in time reporting to the police when operation requirement, and the suggestion operating personnel replenishes and adds magnetic suspension, prevents to take place still to spray the operation under the not enough condition of magnetic suspension, causes unnecessary time waste.

Flow control device 265 includes trunk 2651, and different horizontal shower 264 and different vertical shower 261 communicate with trunk 2651 through different bracings 2652, all are provided with flow control valve 2653 on each branch 2652, are provided with the spray water pump on trunk 2651. The flow of the magnetic suspension flowing into the branch pipe 2652 can be adjusted by the flow control valve 2653, so that the spraying magnetization effect of the framework 5 is ensured; if the spraying flow is too small, the surface of the framework 5 cannot be completely sprayed or the magnetic powder is not obviously gathered after spraying and magnetizing, so that the defect judgment is influenced, and if the spraying flow is too large, the sprayed magnetic suspension has a scouring effect on the magnetic suspension gathered at the defect, so that the magnetic mark observation after flaw detection is influenced. According to the structural form and the distribution of the welding seams of the framework 5, the longitudinal spray pipes 261 and the transverse spray pipes 264 are mainly distributed on the upper part and the lower part of the framework 5, so that the framework 5 can be sprayed up and down simultaneously.

In this embodiment, the magnetic suspension recovery device 24 is further included, the magnetic suspension recovery device 24 includes a collecting plate 241 and a liquid collecting tray 242, the collecting plate 241 is located at the bottom end of the protection chamber 23, the collecting plate 241 is high outside and low inside, and a gap is arranged in the middle of the collecting plate 241, the edge of the liquid collecting tray 242 is hermetically connected with the gap, a liquid collecting hole 243 is arranged at the lowest point of the liquid collecting tray 242, the liquid collecting hole 243 is communicated with the magnetic suspension storage tank 22 through a liquid returning pipe, and a liquid returning water pump is arranged on the liquid returning pipe; a filter screen is arranged in the magnetic suspension storage tank 22 corresponding to the outlet of the recovery pipe for filtering the collected magnetic suspension and preventing impurities from entering the magnetic suspension storage tank 22. In order to increase the recovery rate of the magnetic suspension, the collecting plate 241 may be extended outward all the way to the lower side of the upper blanking and observation station 1.

The control unit of the whole magnetic particle flaw detector device of framework in this embodiment adopts industrial PLC programmable controller to control, flow control valve 2653, spray water pump, return liquid water pump, magnetizer 25 etc. respectively with PLC programmable controller signal connection, PLC programmable controller sets up in switch board 3, PLC programmable controller still electricity is connected with wireless transmission module, and be equipped with the remote controller that carries out wireless communication with wireless transmission module, and still be provided with the control button of a plurality of PLC programmable controllers in switch board 3, the event can come remote control flow control valve 2653 through the remote controller, spray water pump, return liquid water pump and magnetizer 25, also can come control flow control valve 2653 through pressing touch control button, spray water pump, return liquid water pump and magnetizer 25. And a PLC (programmable logic controller) is utilized to centrally coordinate the feeding and discharging and the coordination of the motion flows of the equipment of the observation station 1 and the spraying station 2. The manual operation can control the related actions of the flaw detection flow of the framework 5 by operating an operation panel on the control cabinet 3, and an operator can also control each flow of flaw detection of the framework 5 by using a remote controller at different positions of a station. A safe interlocking function is arranged between the two controls, and a remote control command is preferably selected to prevent the damage of equipment and personnel caused by control conflict. The control system of the conveying carriage 12 is connected to the PLC programmable controller through a wireless communication module, so that the running of the conveying carriage 12 and the operation of the turning device 122 can be controlled by the PLC programmable controller.

In order to avoid the situation that the electrode is contacted with the framework 5 and the framework 5 is possibly pressed and deformed and burned by the electrode, the magnetizing device 25 is fixed on the integral frame structure of the protection chamber 23, the non-contact rotating magnetic field magnetizing method for workpiece rotation has three magnetizing modes of longitudinal magnetization, circumferential magnetization and composite magnetization, the magnetizing device 25 adopts two groups of fixed magnetizing coils which are oppositely arranged, the magnetizing current is continuously adjustable, the effect of one-time combined magnetization and comprehensive coverage is achieved, the omnibearing magnetization of the framework 5 is realized, and the defects of the surface or the near surface of a welding line of each part of the framework 5 can be efficiently, clearly and reliably detected. The demagnetization mode adopts an unequal attenuation measure when the magnetization power supply is turned off, and the amplitude of the alternating magnetic field acting on the framework 5 is gradually reduced until the amplitude is zero in the gradual attenuation process of the current in the magnetization coil. After flaw detection is finished, the remanence of each part of the whole framework 5 is less than 0.5mT, and the working efficiency is effectively improved.

The lifting overturning unit comprises two lifting overturning machines 11, and the two lifting overturning machines 11 are respectively arranged on two sides of the feeding, discharging and observing station 1; through 11 elevating system of two lift upset machines drive framework 5 and reciprocate and upset framework 5 to can stop in the lift in-process in the optional position, can realize arbitrary angle rotation and stop during rotatory framework 5, be favorable to framework 5 to observe the operation.

Specifically, each lifting turnover machine 11 comprises a base 118, a movable support 114, a rotary support 1133 and a rotary chuck, wherein the base 118 is fixedly connected to the foundation 7 and mainly plays a role in supporting and bearing; two parallel linear guide rails 111 are arranged on a base 118, a slide seat 112 fixedly arranged at the bottom end of a movable support 114 is in sliding fit with the linear guide rails 111, a first driving motor 115 is arranged on the movable support 114, a driving gear is fixedly arranged on an output shaft of the first driving motor 115 and is meshed with a rack arranged on the base 118, the rack is parallel to the linear guide rails 111, the length direction of the linear guide rails 111 is perpendicular to the motion direction of the conveying trolley 12, a second driving motor 117 which drives a rotary support 1133 to ascend and descend along the movable support 114 through a screw and nut mechanism is arranged on the movable support 114, in order to enable the ascending and descending processes of the rotary support 1133 to be stable and reliable, pulleys 119 are arranged on the side face, matched with the movable support 114, of the rotary support 1133, and the pulleys 119 are arranged on the rotary support 1133 and are in rolling fit with the movable support 114.

A swing hydraulic cylinder 1147 for driving the rotating chuck to rotate is fixedly arranged on the rotary support seat 1133; the two rotary chucks are oppositely arranged. The rotary chuck comprises a clamping bracket 1145, a fixed rod 1143 and two clamping mechanisms, one end of the clamping bracket 1145 is fixedly connected with the output end of a swing hydraulic cylinder 1147, a rotary pressing cantilever 113 is fixedly arranged on the swing hydraulic cylinder 1147, the rotary pressing cantilever 113 is a sleeve, the clamping bracket 1145 penetrates through the rotary pressing cantilever 113 and is in running fit with the rotary pressing cantilever 113 through a bearing, and the smooth rotation process is ensured; the fixed rod 1143 is vertically and fixedly arranged at one end of the clamping bracket 1145 far away from the swing hydraulic cylinder 1147, and the two clamping mechanisms are respectively positioned at the upper and lower sides of the clamping bracket 1145; the clamping mechanism comprises a clamping hydraulic cylinder 1144 and a V-shaped rod 1141, the tip of the corner of the V-shaped rod 1141 is hinged to the fixing rod 1143, one end of the clamping hydraulic cylinder 1144 is hinged to the clamping support 1145, the other end of the clamping hydraulic cylinder 1141 is hinged to one end of the V-shaped rod 1141, the other end of the V-shaped rod 1141 is provided with a pressure plate 1140, the pressure plate 1140 is hinged to the V-shaped rod 1141 through a pin shaft, and the opening of the V-shaped rod 1141 faces to the side away from the fixing rod 1143.

An interface 1146 for butting with the framework 5 is fixedly arranged at one end of the clamping bracket 1145 far away from the swing hydraulic cylinder 1147, and when the lifting rotating mechanisms at two sides need to bear the framework 5, the interface 1146 is connected with a specific part on the framework 5 before the framework 5 is not clamped, so that the function of aligning the position of the framework 5 is achieved, and the lifting rotating mechanisms clamp the framework 5 to ensure stable and reliable lifting and overturning processes; when a different framework 5 needs to be inspected, the interface 1146 device matched with the framework 5 to be inspected needs to be replaced.

A hydraulic power pack 1142 is further fixedly disposed on the rotating support 1133, and the hydraulic power pack 1142 provides hydraulic oil for a swing hydraulic cylinder 1147 for driving the rotating chuck to rotate and a clamping hydraulic cylinder 1144 for driving the platen 1140 to rotate.

It should be noted that each lifting turnover machine 11 is provided with a safety control mechanism; the safety control mechanism comprises an emergency stop switch, a proximity switch 8, overcurrent protection, overload protection and a safety nut, wherein the proximity switch 8 is respectively arranged on the movable support 114, the base 118 and the rotary support 1133; the emergency stop switch is a control switch. The motor is started and stopped by the electromagnetic relay, when current passes through the electromagnetic relay, an electromagnetic coil in the electromagnetic relay starts to work, and an armature in the electromagnetic relay is adsorbed to act, so that a motor circuit is triggered, and the motor starts to run by the current. When a problem occurs or danger occurs, the emergency stop switch is pressed down by a person, the electromagnetic relay is broken, and therefore a motor circuit is broken, and the motor stops running. Overcurrent protection and overload protection are motor circuit series connection fuses, when external current fluctuates, or motor load is too big, circuit current rises, leads to the overheated fusing of fuse, realizes the purpose of protection motor. Similarly, the process can be controlled by software, a current sensor is arranged in the process, and when the current rises to a certain limit, plc alarm is sent out to give an alarm to an operator. The proximity switch 8: the whole process is a mechatronic control process, and the motor can always run due to the lack of feedback in the running process of the motor. Thereby causing the machine not to stop and causing damage to the machine. A proximity switch 8 (see fig. 15) can be added at a reasonable position, and feedback is given to plc when the machine runs to a proper position, and plc contacts a signal to stop the motor, so that the machine is ensured to stop at a proper position.

The screw rod is lifted and self-locked, and the safety nut is arranged on the nut screw rod 116, so that when the driving nut fails due to abrasion in long-term use, the safety nut prevents the rotary supporting seat 1133 from falling and locking, and safety accidents are prevented.

The control system of the lifting turnover machine 11 is integrated with the whole magnetic particle inspection device and can be controlled manually or by a remote controller. Specifically, the first driving motor 115, the second driving motor 117, the swing hydraulic cylinder 1147 and the clamping hydraulic cylinder 1144 can be controlled by a PLC programmable controller in the control cabinet 3, and also can be remotely controlled by a remote controller and controlled by a control button.

The lifting overturning unit is of a double-upright-column lifting structure, and the two lifting overturning machines 11 are arranged in a central symmetry manner relative to the guide rail; the two lifting tilters 11 drive the rotary support seat 1133 to lift by adopting a nut screw 116 mechanism, the rotary clamping cantilever is controlled by a hydraulic system to turn 360 degrees, and the lifting tilters can stay at any position and angle during lifting movement or turning; the stroke of the clamping mechanism of the rotary clamping cantilever is large enough to be used for clamping frameworks 5 with different thickness types; the column supports of the lifting tilters 11 can slide along the lower linear guides 111, adjusting the distance between the rotary clamping cantilevers on the two lifting tilters 11, and can be adapted to frames 5 of different width dimensions. Meanwhile, the two rotary clamping cantilevers can be driven by the upright post bracket to move downwards to the outermost side during feeding and discharging so as to avoid influencing feeding and discharging. Framework 5 has sprayed magnetic suspension and has got back to unloading and observe station 1, has observed the welding seam state on 5 upper portions of framework, if need observe the welding seam state of 5 lower parts of framework, carries out the turn-over through lift upset machine 11 to framework 5 and observes, can place framework 5 and observe on the strutting arrangement, also can directly observe on lift upset machine 11 to lift and flip angle can stop and observe in optional position, promotes efficiency and the convenience that the operative employee observed the 5 welding seams of framework.

The conveyor table is coordinated with the two lifting turners 11, and after the framework 5 is conveyed to the loading, unloading and observation station 1, the framework 5 is in a horizontal state so as to be in butt joint with the interface 1146 on the lifting turner 11. In this embodiment, a guardrail 6 enclosing the whole framework of the whole magnetic powder inspection device is further arranged, and the guardrail 6 plays a role in protection.

The embodiment also provides a framework integral magnetic particle inspection method, and the framework integral magnetic particle inspection device based on the framework integral magnetic particle inspection method comprises the following steps:

(1) hoisting a framework 5 to be inspected to a conveying trolley 12 by using a hoisting tool, then starting the conveying trolley 12, conveying the framework 5 to the position below a magnetic suspension spraying system 26 of a protection chamber 23, and sealing the protection chamber 23;

(2) starting a magnetizing device 25 in the protective chamber 23 to magnetize the framework 5, and spraying fluorescent magnetic suspension on the framework 5 through a magnetic suspension spraying system 26 during the magnetizing process;

(3) after the spraying is finished, the magnetic suspension spraying system 26 is shut down to stop spraying the framework 5, and then the framework 5 is stopped to be magnetized;

(4) opening the protection chamber 23, then starting the conveying trolley 12, conveying the framework 5 between the two lifting turnover machines 11, enabling flaw detection workers to hold the ultraviolet lamp to irradiate the framework 5 to observe the state of a welding seam on the framework 5, and marking the defect position on the welding seam;

(5) in the process that a flaw detection worker observes the framework 5, the framework 5 is clamped through two rotary chucks in the lifting and overturning unit, and the framework 5 is overturned through the lifting and overturning unit, so that the flaw detection worker can conveniently observe the framework 5;

(6) after the observation is finished, the framework 5 is placed back on the supporting device of the conveying trolley 12 through the lifting and overturning unit;

(7) starting the conveying trolley 12, conveying the framework 5 into the protection chamber 23, carrying out demagnetization treatment on the framework 5 by using the magnetizing device 25, and after demagnetization is finished, conveying the framework 5 to the outside of the protection chamber 23 through the conveying trolley 12;

(8) the frame 5 is lifted out by the crane and then the frame 5 is transferred to the next process.

The whole magnetic particle flaw detector device with the framework can efficiently and automatically complete magnetic particle flaw detection work, is suitable for batch production operation, better improves the working environment of operators, reduces the labor intensity, and simultaneously improves the flaw detection working efficiency of the framework 5.

In the description of the present invention, it should be noted that the terms "top", "bottom", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (10)

1. The utility model provides a whole magnetic particle inspection device of framework which characterized in that: the device comprises a conveying trolley, a protection chamber and a lifting and overturning unit positioned outside the protection chamber, wherein the lifting and overturning unit comprises two lifting and overturning machines, the conveying trolley is used for conveying a framework in the protection chamber and between the two lifting and overturning machines, and a magnetizing device for magnetizing the framework and a magnetic suspension spraying system for spraying magnetic suspension on the framework are arranged in the protection chamber;

each lifting turnover machine comprises a base, a moving support, a rotary support seat and a rotary chuck, wherein a linear guide rail is arranged on the base, the bottom end of the moving support is in sliding fit with the linear guide rail, a first driving motor is arranged on the moving support, a driving gear is fixedly arranged on an output shaft of the first driving motor and is meshed with a rack arranged on the base, the rack is parallel to the linear guide rail, the length direction of the linear guide rail is vertical to the motion direction of the conveying trolley, a second driving motor for driving the rotary support seat to lift along the moving support through a screw and nut mechanism is arranged on the moving support, a swing hydraulic cylinder is fixedly arranged on the rotary support seat and is used for driving the rotary chuck to rotate; the two rotary chucks are oppositely arranged.

2. The framed integrated magnetic particle inspection apparatus according to claim 1, wherein: the rotary chuck comprises a clamping support, a fixed rod and two clamping mechanisms, one end of the clamping support is fixedly connected with the output end of the swing hydraulic cylinder, a rotary compression cantilever is fixedly arranged on the swing hydraulic cylinder and is a sleeve, and the clamping support penetrates through the rotary compression cantilever and is in running fit with the rotary compression cantilever through a bearing; the fixed rod is vertical and fixedly arranged at one end of the clamping bracket far away from the swing hydraulic cylinder, and the two clamping mechanisms are respectively positioned at the upper side and the lower side of the clamping bracket; the clamping mechanism comprises a clamping hydraulic cylinder and a V-shaped rod, the tip of the corner of the V-shaped rod is hinged with the fixed rod, one end of the clamping hydraulic cylinder is hinged with the clamping support, the other end of the clamping hydraulic cylinder is hinged with one end of the V-shaped rod, a pressing plate is arranged at the other end of the V-shaped rod, and the opening of the V-shaped rod faces to one side far away from the fixed rod; and one end of the clamping bracket, which is far away from the swing hydraulic cylinder, is fixedly provided with an interface for butting with the framework.

3. The framed integrated magnetic particle inspection apparatus according to claim 1, wherein: the conveying trolley is provided with a rotating device, the rotating device comprises a rotating speed reduction motor, a positioning plate and a rotating support plate, the rotating speed reduction motor is fixedly arranged on the conveying trolley, the positioning plate is fixedly connected with an output shaft of the rotating speed reduction motor through an upper hinge plate, the positioning plate is fixedly connected with the rotating support plate, the rotating support plate is positioned below the positioning plate, and the rotating support plate is rotatably connected with a bearing seat fixedly arranged on the conveying trolley through a bearing; the positioning plate is provided with a positioning pin for positioning the supporting device or a limiting mechanism for limiting the supporting device, and the supporting device is used for supporting the framework.

4. The framed integrated magnetic particle inspection device according to claim 1, wherein: the magnetic suspension spraying system is characterized by further comprising a trolley guide rail, wherein one end of the trolley guide rail is located between the two lifting turnover machines, the other end of the trolley guide rail is located below the magnetic suspension spraying system, and the conveying trolley travels on the trolley guide rail; the middle part of platform truck guide rail is provided with the arch that slows down, just it protruding with between the magnetic suspension spray system there is 2 contained angle between platform truck guide rail and the horizontal direction to slow down.

5. The framed integrated magnetic particle inspection apparatus according to claim 1, wherein: the magnetic suspension spraying system comprises a magnetic suspension storage tank, a flow control device, at least one transverse spraying pipe and at least one longitudinal spraying pipe, wherein the transverse spraying pipe and the longitudinal spraying pipe are both provided with a spray head and are both connected with copper pipes, and the other ends of the copper pipes are connected with the spray heads; flow control device includes the trunk line, and is different horizontal shower and difference vertical shower through the branch pipe of difference with the trunk line intercommunication, every all be provided with flow control valve on the branch pipe, be provided with spray water pump on the trunk line.

6. The framed integrated magnetic particle inspection apparatus of claim 5, wherein: still include magnetic suspension recovery unit, magnetic suspension recovery unit is including setting up at collecting plate and liquid collecting tray, the collecting plate is located the bottom of guard chamber, the collecting plate is outer high in low and the centre is provided with the breach, the edge of liquid collecting tray with breach sealing connection, the minimum department of liquid collecting tray is provided with the collecting opening, the collecting opening through return the liquid pipe with magnetic suspension storage tank intercommunication, be provided with back the liquid water pump on returning the liquid pipe.

7. The framed integrated magnetic particle inspection apparatus according to claim 1, wherein: the protective chamber is closed, a lifting door is arranged on the side wall of the protective chamber, and when the lifting door is opened, the conveying trolley can enter and exit the protective chamber.

8. The framed integrated magnetic particle inspection apparatus according to claim 1, wherein: and the rotary supporting seat is also fixedly provided with a hydraulic power pack for providing hydraulic oil for the swing hydraulic cylinder.

9. The framed integrated magnetic particle inspection apparatus according to claim 1, wherein: the conveying trolley is provided with a proximity switch electrically connected with a traveling motor of the conveying trolley, and when the conveying trolley reaches the feeding and discharging and observing station in the middle of the two lifting turnover machines and the spraying station below the magnetic suspension spraying system, the proximity switch can be triggered and closed the traveling motor.

10. A framework integrated magnetic particle inspection method, based on the framework integrated magnetic particle inspection apparatus of any one of claims 1 to 9, comprising the steps of:

(1) hoisting a framework to be subjected to flaw detection to a conveying trolley by using a hoisting tool, then opening the conveying trolley, conveying the framework to the position below a magnetic suspension spraying system of a protection chamber, and sealing the protection chamber;

(2) starting a magnetizing device in the protection chamber, magnetizing the framework, and spraying fluorescent magnetic suspension on the framework through a magnetic suspension spraying system in the magnetizing process;

(3) after the spraying is finished, the magnetic suspension spraying system is shut down to stop spraying the framework, and then the framework is stopped from being magnetized;

(4) opening the protection chamber, then starting the conveying trolley, conveying the framework between the two lifting turnover machines, enabling flaw detection workers to hold an ultraviolet lamp to irradiate the framework to observe the state of a welding seam on the framework, and marking the defect position on the welding seam;

(5) in the process that a flaw detection worker observes the framework, the framework is clamped through two rotary chucks in the lifting and overturning unit, and the framework is overturned through the lifting and overturning unit, so that the flaw detection worker can conveniently observe the framework;

(6) after observation is finished, the framework is placed back to the supporting device of the conveying trolley through the lifting turnover unit;

(7) starting the conveying trolley, conveying the framework into the protective chamber, demagnetizing the framework by using the magnetizing device, and after demagnetization is completed, conveying the framework to the outside of the protective chamber by using the conveying trolley;

(8) the frame is lifted out by the spreader and then transferred to the next process.

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