Summary of the invention
May damage duct wall to overcome existing manual polishing, and inefficient deficiency, the present invention aims to provide a kind of Non-Destructive Testing pipe special oxide skin automatically grinding devices and methods therefor, this sanding apparatus and method thereof can realize machine automatization and polish to pipeline, and can ensure polishing quality, eliminate safe hidden trouble, reduce labor strength, increase work efficiency.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of Non-Destructive Testing pipe special oxide skin automatically grinding device, its design feature is, comprise at least two groups and be sleeved on ring-shaped guide rail outside pipeline to be detected, be contained in the door shape polishing rack that described ring-shaped guide rail also can rotate along pipeline circumference to be detected, be contained on a shape polishing rack crossbeam can the horizontal sliding device that moves back and forth of crossbeam relatively, and to be contained on horizontal sliding device by motor-driven abrasive machine by Flexible Connector; During the work of described abrasive machine, what Flexible Connector made the grinding wheel of abrasive machine and pipeline to be detected treats that buffed surface keeps in touch.
Be below the technical scheme of further improvement of the present invention:
As a kind of concrete version, described Flexible Connector comprises the top board being connected to horizontal sliding device by Compress Spring, one end of this top board and a main shaft is fixedly linked, the other end of this main shaft is equipped with motor and controls the controller of abrasive machine start and stop, and output shaft and the described abrasive machine of described motor are connected.
Preferably, described horizontal sliding device comprises horizontal sliding beam, is provided with directive wheel between this horizontal sliding beam and described door shape polishing rack crossbeam, and this horizontal sliding beam one end is provided with and drives its motor moved back and forth along the length direction of described door shape polishing rack crossbeam.
As a kind of concrete fixed form, described ring-shaped guide rail is fixed on pipeline to be detected by a telescopic guideway fixator; Described telescopic guideway fixator comprises ring-shaped guide rail retainer body, is arranged on the polylith magnet of ring-shaped guide rail retainer body inwall, and is arranged on the size adjusting rod between ring-shaped guide rail retainer body and magnet.Described magnet is preferably electromagnet.
Preferably, described door shape polishing rack can be contained on described ring-shaped guide rail around the dolly of ring-shaped guide rail hoop movement by one, and this ring-shaped guide rail is built with the propulsion plant body driving described moving of car.
Preferably, one end of described main shaft has the adjustment screw thread treating buffed surface thrust size regulating grinding wheel for pipeline to be detected.
Preferably, described abrasive machine is built with the adjuster of adjustment grinding wheel grinding angle.
Further, present invention also offers a kind of method utilizing above-mentioned Non-Destructive Testing pipe special oxide skin automatically grinding device to polish to pipeline oxidization skin, it comprises the steps:
A) range and position that pipeline is polished, is first determined, according to the installation site of length determination ring-shaped guide rail (1) of polishing scope and crossbeam (15); By determined installation site, ring-shaped guide rail (1) is installed, and door shape polishing rack, horizontal sliding device and Flexible Connector are installed;
B), described abrasive machine is arranged on crossbeam by connector, the adjustment grinding wheel of abrasive machine and pipeline to be detected treat height between buffed surface and angle;
C), starter motor, what utilize grinding wheel to treat testing pipes treats that buffed surface is polished in advance;
D), by Flexible Connector exert pressure to grinding wheel, what make grinding wheel under elastic pressure effect, treat testing pipes treats that buffed surface is polished;
E), driving gate shape polishing rack moves around the hoop of ring-shaped guide rail;
F), after the whole circle polishing that completes pipeline to be detected, drive horizontal sliding device to move horizontally, and repeat step C)-E), change polishing position and polish, until complete the oxide skin polishing treating testing pipes, meet Requirements of Nondestructive Testing.
Described door shape polishing rack is 0.8-1m/min around the speed of ring-shaped guide rail movement; The distance that described horizontal sliding device single moves horizontally is 0.6m-0.8m.
Above structure, telescopic guideway fixator needs to carry out telescopic adjustment according to pipe diameter, controlled electromagnet is adopted to be fixed on tube wall by ring-shaped guide rail, propulsion plant is mobile for guiding frame circumference, adjuster is for regulating the distance of emery wheel and tube wall, slide device is for changing the horizontal level of polishing, and the pressure that spring charging device contacts with tube wall for providing abrasive machine, controller is for controlling the start and stop of abrasive machine.
Specifically, described Non-Destructive Testing pipe special oxide skin automatically grinding method comprises the following steps:
A, first determine the range and position that pipeline is polished, according to the installation site of polishing scope and crossbeam length determination guide rail;
B, described automatically grinding device is assembled successively after, by adjuster adjustment grinding wheel and the height of pipeline buffed surface and angle;
C, switch on power, start-up connector button, polishes in advance;
D, extract compression spring device pin, grinding wheel is polished under elastic pressure;
E, startup Propeling Equipment Control device button, make propulsion plant polish under the speed of 0.8-1m/min;
F, complete whole circle polishing after, starter motor button, makes slide device horizontal slip displacement, change polishing displacement polish.Circulate back and forth like this, until complete the oxide skin polishing of pipeline, meet Requirements of Nondestructive Testing.
Compared with prior art, the invention has the beneficial effects as follows: present invention achieves and automatically pipeline is polished, and polishing quality can be ensure that, eliminate potential safety hazard, reduce labor strength, improve operating efficiency.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Detailed description of the invention
A kind of Non-Destructive Testing pipe special oxide skin automatically grinding device, Non-Destructive Testing pipe special oxide skin automatically grinding adopts the special grinding apparatus of design to polish, as shown in Figure 1 and Figure 2, this device comprises electromagnet guide rail fixator, ring-shaped guide rail, spring charging device, propulsion plant, frame, slide device, motor, adjuster, sanding apparatus, controller.
Described electromagnet guide rail fixator is spliced by 4 pieces of identical parts and forms, and is connected by pin, comprises ring-shaped guide rail fixator, size expansion and cotraction regulator, electromagnet respectively.Expansion and cotraction regulator can carry out telescopic adjustment according to different tube diameters size, and it is fixing that electromagnet adopts step mode that magnet and tube wall are adsorbed.
Described ring-shaped guide rail is spliced by 2 pieces of identical parts and forms, and is connected by pin, is made up of guide rail locking apparatus, guide rail body, the propeller road wheel circuit that leads.Wherein propeller road wheel guiding circuit width should match with the size of traveling wheel of trolley, and guide rail locking apparatus adopts bolt to be connected with guide rail body, and guide rail body and telescopic guideway fixator adopt bolt to be connected.
Described propulsion plant is made up of directive wheel, bogie wheel, thrust unit body, dolly, speed control.Thrust unit body and frame adopt bolt to be connected.
Described charger is by installing 2 Compress Springs in frame, realizing the loading to sanding apparatus, guarantees the friction with workpiece simultaneously.
Described sanding apparatus is made up of independent grinding wheel unit, comprises adjuster, controller, abrasive machine, grinding wheel, protective cover composition respectively.Controller is for controlling the start and stop of abrasive machine, and adjuster is for regulating distance and the angle of grinding wheel and contact surface, and grinding wheel adopts the handling of bolted cover convenient fixing.
By laid on tube wall for telescopic guideway fixator 19 circumference, adopt electromagnet 20 absorption to be fixed on tube wall, adjust length by threaded rod 21 and make it to match with ring-shaped guide rail size, and adopt bolt to carry out seamless link to fix.Propulsion plant 24 is loaded in ring-shaped guide rail 1, directive wheel 23 is contained on guide rail 1, can move forward and backward along guide rail 1, bogie wheel 22 fills on telescopic guideway fixator 19, propulsion plant body 24 is connected with dolly, and dolly is connected with frame 3, and frame 3 is connected with crossbeam 15, diagonal brace 5, crossbeam 15 adopts directive wheel 16 to be connected with horizontal sliding device 17, and horizontal sliding device 17 does horizontal displacement under motor 18 controls.Horizontal sliding device 17 is connected with compression spring device 9, and compression spring device 9 is connected with top board 10, and top board 10 is connected with main shaft 6, and main shaft 6 is connected with sanding apparatus; Sanding apparatus comprises controller 7, motor 13, controller 12, abrasive machine 8, protective cover 11, sanding apparatus is connected with main shaft 6 by screw thread 14, motor 13 is connected with press control 12, controller controls the start and stop of abrasive machine, motor 13 is connected with abrasive machine 8, motor provides abrasive machine 8 power, and sanding apparatus adjusts abrasive machine 8 and distance and the angle for the treatment of buffed surface as required.
Described Non-Destructive Testing pipe special oxide skin automatically grinding comprises the following steps:
A, first determine the range and position that pipeline is polished, according to the installation site of the length determination telescopic guideway fixator 19 of polishing scope and crossbeam 15;
B, described automatically grinding device is assembled successively after, by height and the angle of adjuster adjustment grinding wheel 8 and pipeline buffed surface;
C, switch on power, start-up connector 7 button, polishes in advance;
D, extract the pin of compression spring device 9, apply a vertical spring pressure to top board 10, and then grinding wheel is polished under elastic pressure effect;
E, startup Propeling Equipment Control device button, make propulsion plant polish under the speed of 0.8-1m/min;
F, complete whole circle polishing after, starter motor 18 button, makes slide device 17 horizontal slip displacement 0.6-0.8m, change polishing displacement polish.Circulate back and forth, until complete the oxide skin polishing of pipeline, meet Requirements of Nondestructive Testing.
The content that above-described embodiment is illustrated should be understood to these embodiments only for being illustrated more clearly in the present invention, and be not used in and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.