CN115922158B - Back air protection device and method - Google Patents
Back air protection device and method Download PDFInfo
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- CN115922158B CN115922158B CN202211480172.4A CN202211480172A CN115922158B CN 115922158 B CN115922158 B CN 115922158B CN 202211480172 A CN202211480172 A CN 202211480172A CN 115922158 B CN115922158 B CN 115922158B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 59
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000005452 bending Methods 0.000 claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 23
- 239000011261 inert gas Substances 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 229910052742 iron Inorganic materials 0.000 claims description 16
- 238000010030 laminating Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001788 irregular Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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Abstract
The invention discloses a back gas protection device and a back gas protection method, which relate to the technical field of welding protection and comprise a grounding seat and a back gas box, wherein a joint sealing assembly is arranged on the back gas box and comprises a bottom end limiting frame. The back air protection device and the back air protection method disclosed by the invention have the advantages that the sticking between the back air box and the cylinder body is carried out, the air pump is started, the air pump fills air into the sealing air bag to expand the sealing air bag, the bottom end limiting frame limits the position of the sealing air bag below in the expansion process of the sealing air bag, the upper end of the sealing air bag starts to expand, the plastic bending rod has a plastic effect on the sealing air bag in the expansion process of the upper end, the distance between the plastic bending rod and the sealing air bag is gradually increased from bottom to top, the sealing air bag is enabled to be in a stepped expansion, the outer expansion is avoided, the uppermost part of the sealing air bag is in a state with maximized volume after the sealing air bag is sealed, and therefore the sealing effect is ensured, and the loss of inert gas is reduced.
Description
Technical Field
The invention relates to the technical field of welding protection, in particular to a back gas protection device and method.
Background
In order to prevent the back of the weld from oxidizing and causing detrimental defects to the weld metal structure during welding of the vessel or pipe, a protective measure of inert gas isolation or replacement of air is called back gas protection.
When the existing back gas protection device is used, the back gas box is driven to be in contact with the welding back surface of the container or the pipeline through elastic adjustment of the spring, inert gas is filled into the back gas box, so that the back gas box is filled in the welding back surface to realize protection, however, if the welding back surface of the container or the pipeline is of an irregular curved surface structure, the back gas box cannot be tightly attached to the welding back surface, the back gas box is required to be continuously filled with the inert gas in the back gas protection process, so that the loss of the inert gas is greatly increased, meanwhile, the attachment is in an untight state, the external air has the probability of entering the welding back surface, and a certain oxidation probability still exists, so that the use value of the back gas protection device is reduced.
Disclosure of Invention
The invention discloses a back gas protection device, which aims to solve the technical problems that if the welding back surface of a container or a pipeline is of an irregular curved surface structure, a back gas box cannot be tightly attached to the welding back surface, so that inert gas needs to be continuously filled in the back gas protection process, the loss of the inert gas is rapidly increased, meanwhile, the attachment is in an untight state, the probability that external air enters the welding back surface exists, and a certain oxidation probability still exists.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a back of body gas protection device and method, includes ground connection seat and back of body gas box, be equipped with laminating seal assembly on the back of body gas box, and laminating seal assembly includes the spacing frame of bottom, the spacing frame fixedly connected with in bottom of back of body gas box's top of bottom, the inside of the spacing frame of bottom is equipped with sealed gasbag, the spacing frame of bottom is located the outside equidistance fixedly connected with of sealed gasbag department and moulds the type bent lever, moulds the side of type bent lever with sealed gasbag and be the central point symmetry distribution, sealed gasbag's top is equipped with the contact cushion, and the outside equidistance of contact cushion is equipped with elastic connection rope, and the outside of back of body gas box is all located to the other end of elastic connection rope, the inside of back of body gas box is equipped with air pressure sensor, and one side fixedly connected with backup pad of back of body gas box, the top fixedly connected with air pump of backup pad, the gas-supply end fixedly connected with trachea of air pump, tracheal other end peg graft in sealed gasbag's inside.
Through being provided with laminating seal assembly, when carrying out the laying of back of body gas box, remove it to the welding back, firstly carry inert gas to the back of body gas box in through the delivery pump, extrude the air of back of body gas box department, then start the air pump, the air pump carries out the gas filling to the sealed gasbag, make its inflation, the in-process that sealed gasbag is expanded, the spacing frame in bottom is limited the position that sealed gasbag is located the below for sealed gasbag upper end begins to expand, the in-process that upper end expanded, the effect of moulding is played to sealed gasbag to the curved pole of moulding, the interval of moulding curved pole from bottom to top apart from sealed gasbag gradually becomes big, make sealed gasbag present a echelonment inflation, avoid the outside to expand, ensure that sealed gasbag is in the state that the volume is maximized after accomplishing the sealed gasbag, thereby ensure sealed effect, reduce inert gas's loss, simultaneously, carry out the inside air pressure monitoring of back of gas box through the air pressure sensor, after the atmospheric pressure reaches certain degree, stop inert gas's transport, avoid atmospheric pressure to cause sealed gasbag to be extruded, lose sealed effect.
In a preferred scheme, the both sides of back of body gas box all are equipped with and grasp follow-up subassembly, and grasp follow-up subassembly and include a plurality of friction curved bars, the both sides of back of body gas box all fixedly connected with planking, the equal distance fixedly connected with electric telescopic handle in opposite sides of two planking, the other end of a plurality of electric telescopic handle that is located on same planking is equipped with same ejection post, partial friction curved bar fixed connection in the outside of ejection post, and another partial friction curved bar passes through hinged joint in the outside of ejection post, the outside fixedly connected with conflict pole of ejection post, and the outside equidistance fixedly connected with dislocation spring of the outside of conflict pole towards friction curved bar, the equal fixedly connected with in the outside of friction curved bar of the other end of dislocation spring, dislocation spring interval distribution in each friction curved bar department.
When the back gas is protected by the aid of the grabbing follow-up assembly, when the welded cylinder body needs to rotate, the electric telescopic rod is adjusted to drive the friction bending rod to be in contact with the inner side of the cylinder body, friction force between the friction bending rod and the cylinder body is increased, so that the back gas box rotates along with the rotation of the cylinder body, the position of the back gas box does not need to be adjusted repeatedly manually, and meanwhile, if the inner side of the cylinder body is in an irregular bending state in contact with the inner side of the cylinder body, the staggered friction bending rod deflects, and a dislocation spring at the rear of the friction bending rod is extruded, so that dislocation friction grabbing is achieved, and the firmness of connection between the friction bending rod and the cylinder body is improved.
In a preferred scheme, the bottom inner wall fixedly connected with of back of body gas box is hollow air frame, and the outside equidistance of hollow air frame leaves there is the filling hole, and the back of body gas box is located the inside equal fixedly connected with guide plate of hollow air frame both sides, and guide plate fixedly connected with is in the outside of the spacing frame of bottom, the top fixedly connected with fixed plate of ground connection seat, and one side fixedly connected with pump frame of fixed plate, the top fixedly connected with delivery pump of pump frame, the conveyer pipe of conveyer pump's conveyer end fixedly connected with conveyer pipe, the inside of the other end fixedly connected with hollow air frame of conveyer pipe.
In a preferred scheme, one side fixedly connected with cylinder of fixed plate, the output fixedly connected with of cylinder stretches into the stock, stretches into the outside of stock and is equipped with the internal stay reinforcing assembly, and the internal stay reinforcing assembly includes solid fixed ring, gu fixed ring fixedly connected in the outside that stretches into the stock, gu the outside annular of fixed ring distributes and has the installing frame, and the equal fixedly connected with pneumatic cylinder in inside of every installing frame, the equal fixedly connected with regulating block of output of every pneumatic cylinder, the equal fixedly connected with self-regulating spring in the outside of every regulating block, the equal fixedly connected with pedestal of the other end of every self-regulating spring, the inboard of pedestal is connected with the connecting axle through the bearing, the outside fixedly connected with removal ball of connecting axle.
Through being provided with interior support reinforcement assembly, when stretching into the removal of stock, adjust the pneumatic cylinder and drive the inboard contact of removal ball and barrel, after the contact, the pneumatic cylinder is continuously adjusted for self-regulating spring is in the state of compression, when stretching into the stock and remove at the barrel inboard, self-regulating spring independently adjusts according to the diameter of barrel inboard, makes the removal ball contact with the inboard of barrel all the time, thereby improves the stability of stretching into the stock and removing, ensures the stability of back of the body gas box in the use.
In a preferred scheme, the one end that stretches into the stock is opened there is the embedded groove, and the inside of embedded groove is connected with the axis of rotation through the bearing, the outside of axis of rotation is equipped with magnetism and inhales formula coupling assembling, magnetism is inhaled formula coupling assembling and is included clamping frame, electro-magnet and laminating piece, laminating piece fixed connection is in the outside of axis of rotation, electro-magnet fixed connection is in the outside of laminating piece, the clamping frame passes through hinge connection in the both sides of laminating piece, the equal distance fixedly connected with extrusion spring in opposite one side of clamping frame and laminating piece, the equal distance fixedly connected with friction tooth in outside of every clamping frame, the equidistant fixedly connected with coupling spring in bottom of back of body gas box, and the other end fixedly connected with same mounting panel of a plurality of coupling springs, the opposite one side fixedly connected with two expansion plates of mounting panel and back of body gas box, two expansion plates are located coupling spring's both ends, the bottom of mounting panel is equipped with the iron plate, iron plate adsorbs mutually with the electromagnetism.
Through being provided with magnetism and inhale formula coupling assembling, when carrying out the connection between back of body gas box and the mobile device, place the iron plate below the mounting panel between corresponding holder, the electro-magnet circular telegram of this position, then iron plate and electro-magnet closely adsorb, and absorptive in-process, extrusion spring is compressed, and extrusion spring's reaction force drives the holder and extrudees the injecing to the mounting panel to improve the fastness of connection between the two.
The application method of the back gas protection device is applied to the back gas protection device, and comprises the following steps of:
s1: when the back air box is connected with the mobile equipment, an iron plate below the mounting plate is placed between the corresponding clamping frames, the electromagnet at the position is electrified, the iron plate and the electromagnet are closely adsorbed, in the adsorption process, the extrusion spring is compressed, and the clamping frames are driven by the reaction force of the extrusion spring to extrude and limit the mounting plate, so that the mounting of the back air box is completed;
s2: after the back air box is installed, the adjusting air cylinder drives the extending long rod to move, so that the back air box is moved to the back of the welding surface, inert gas is conveyed into the back air box through the conveying pump, air at the back air box is extruded out, then the air pump is started, the air pump fills the sealing air bag with gas, the sealing air bag is inflated, and the inflated sealing air bag drives the contact cushion to seal between the back air box and the cylinder;
s3: after sealing is completed, the electric telescopic rod is regulated to drive the friction bending rod to contact with the inner side of the cylinder body, so that the friction force between the friction bending rod and the cylinder body is increased, and the back air box rotates along with the rotation of the cylinder body without repeated manual regulation of the position of the back air box.
According to the back air protection device, when the back air box is placed, the back air protection device is moved to the welding back, inert gas is firstly conveyed into the back air box through the conveying pump, air at the back air box is extruded, then the air pump is started to fill the sealing air bag with the air, the sealing air bag is inflated, the bottom end limiting frame limits the position of the sealing air bag below in the inflation process of the sealing air bag, the upper end of the sealing air bag begins to be inflated, the plastic bending rod has a plastic effect on the sealing air bag in the inflation process of the upper end, the distance between the plastic bending rod and the sealing air bag is gradually increased from bottom to top, the sealing air bag is enabled to be in a stepped inflation mode, the outer side of the sealing air bag is prevented from being unfolded, the uppermost part of the sealing air bag is in a state with the largest volume after the sealing air bag is sealed, and therefore the sealing effect is ensured, and the technical effect of inert gas loss is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a back air protection device according to the present invention.
Fig. 2 is a side view of the whole structure of a back air protection device according to the present invention.
Fig. 3 is a schematic diagram of a fitting seal assembly of a back air protection device according to the present invention.
Fig. 4 is a schematic diagram of the internal structure of a back air box of the back air protection device according to the present invention.
Fig. 5 is a schematic view of a grip follower assembly of a back air protection device according to the present invention.
Fig. 6 is a schematic diagram of a magnetic connection assembly of a back air protection device according to the present invention.
Fig. 7 is a schematic plan view of fig. 6.
Fig. 8 is a schematic diagram of an inner support reinforcement assembly of a back air protection device according to the present invention.
In the figure: 1. a grounding seat; 2. a pump frame; 3. a transfer pump; 4. a fixing plate; 5. a cylinder; 6. an inner support reinforcement assembly; 601. a fixing ring; 602. self-adjusting springs; 603. moving the ball; 604. a mounting frame; 605. a shaft bracket; 606. a hydraulic cylinder; 607. an adjusting block; 608. a connecting shaft; 7. extending into the long rod; 8. fitting the sealing assembly; 801. sealing the air bag; 802. contacting the soft pad; 803. an elastic connecting rope; 804. a bottom end limiting frame; 805. molding a bent rod; 806. an air pump; 807. a support plate; 808. an air pressure sensor; 809. an air pipe; 9. a back air box; 10. a mounting plate; 11. a rotating shaft; 12. a delivery tube; 13. an iron plate; 14. a connecting spring; 15. a telescoping plate; 16. a deflector; 17. a hollow air-blowing frame; 18. filling the hole; 19. a grip follower assembly; 1901. an outer plate; 1902. an electric telescopic rod; 1903. a dislocation spring; 1904. friction bending rod; 1905. an ejection column; 1906. a touch-up rod; 20. a magnetic connection assembly; 2001. a clamping frame; 2002. friction teeth; 2003. an electromagnet; 2004. a bonding block; 2005. the spring is pressed.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The back gas protection device disclosed by the invention is mainly applied to the welding back surface of a container or a pipeline, if the welding back surface is of an irregular curved surface structure, the back gas box cannot be tightly attached to the welding back surface, so that inert gas needs to be continuously filled in the back gas protection process, the loss of the inert gas is greatly increased, meanwhile, the attaching is in an untight state, the probability that external air enters the welding back surface exists, and a certain scene of oxidation probability still exists.
Referring to fig. 1-8, a back air protection device comprises a grounding seat 1 and a back air box 9, wherein an attaching sealing assembly 8 is arranged on the back air box 9, the attaching sealing assembly 8 comprises a bottom end limiting frame 804, the bottom end limiting frame 804 is fixedly connected to the top of the back air box 9, a sealing air bag 801 is arranged in the bottom end limiting frame 804, plastic bending rods 805 are fixedly connected to the outer sides of the bottom end limiting frame 804, the plastic bending rods 805 are symmetrically distributed by taking the side edges of the sealing air bag 801 as central points, contact soft pads 802 are arranged at the top of the sealing air bag 801, elastic connecting ropes 803 are arranged at the outer sides of the contact soft pads 802 in an equidistant mode, the other ends of the elastic connecting ropes 803 are all arranged on the outer sides of the back air box 9, an air pressure sensor 808 is arranged in the back air box 9, one side of the back air box 9 is fixedly connected with a supporting plate 807, an air pump 806 is fixedly connected to the top of the supporting plate 807, the air end of the air pump 806 is fixedly connected with an air pipe 809, and the other end of the air pipe 809 is spliced into the sealing air bag 801.
Specifically, in the process of expanding the sealing airbag 801, the contact cushion 802 is driven to contact with the welding back surface of the cylinder, so that heat of the welding back surface of the cylinder is separated through the contact cushion 802, and the sealing airbag 801 is prevented from being damaged by the heat.
When the back air box 9 is placed, the back air box 9 is moved to the welding back surface, firstly, inert gas is conveyed to the back air box 9 through the conveying pump 3, air at the back air box 9 is extruded, then the air pump 806 is started, the air pump 806 fills the sealed air bag 801 with gas, the sealed air bag 801 is inflated, in the inflation process of the sealed air bag 801, the bottom end limiting frame 804 limits the position of the sealed air bag 801 below, the upper end of the sealed air bag 801 begins to be inflated, in the inflation process of the upper end, the plastic bending rod 805 has a plastic effect on the sealed air bag 801, the distance between the plastic bending rod 805 and the sealed air bag 801 is gradually increased, the sealed air bag 801 is enabled to be inflated in a step shape, the outer side of the sealed air bag 801 is prevented from being unfolded, the uppermost of the sealed air bag 801 is in a state with maximized volume, the sealed effect is ensured, the loss of the inert gas is reduced, meanwhile, the air pressure inside the back air box 9 is monitored through the air pressure sensor 808, the conveying of the inert gas is stopped after the air pressure reaches a certain degree, the sealed air pressure is prevented from being extruded, and the sealed air bag 801 is prevented from being damaged.
Referring to fig. 1, 3 and 5, in a preferred embodiment, two sides of the back air box 9 are provided with a grabbing follower assembly 19, the grabbing follower assembly 19 includes a plurality of friction bending rods 1904, two sides of the back air box 9 are fixedly connected with outer plates 1901, opposite sides of the two outer plates 1901 are fixedly connected with electric telescopic rods 1902 at equal distances, the other ends of the plurality of electric telescopic rods 1902 located on the same outer plate 1901 are provided with the same ejection column 1905, part of the friction bending rods 1904 are fixedly connected to the outer sides of the ejection column 1905, the other part of the friction bending rods 1904 are connected to the outer sides of the ejection column 1905 through hinges, the outer sides of the ejection column 1905 are fixedly connected with abutting rods 1906, the abutting rods 1906 face the outer sides of the friction bending rods 1904 and are fixedly connected with dislocation springs 1903 at equal distances, the other ends of the dislocation springs 1903 are fixedly connected to the outer sides of the friction bending rods 1904, and the dislocation springs 1903 are distributed at intervals at the positions of the friction bending rods 1904.
When the welded cylinder needs to rotate, the electric telescopic rod 1902 is adjusted to drive the friction bending rod 1904 to contact with the inner side of the cylinder, so that the friction force between the friction bending rod 1904 and the cylinder is increased, the back air box 9 rotates along with the rotation of the cylinder, the manual adjustment of the position of the back air box 9 is not needed to be repeated, and meanwhile, when the friction bending rod 1904 contacts with the inner side of the cylinder, if the inner side of the cylinder is in an irregular bending state, the staggered friction bending rod 1904 deflects, and the staggered spring 1903 at the rear of the friction bending rod is extruded, so that staggered friction adhesion is realized, and the firmness of connection between the friction bending rod 1904 and the cylinder is improved.
Referring to fig. 1, 2, 3 and 4, in a preferred embodiment, the bottom inner wall of the back air box 9 is fixedly connected with a hollow air-blowing frame 17, and the outer sides of the hollow air-blowing frames 17 are equidistantly separated from a filling hole 18, the back air box 9 is positioned inside of two sides of the hollow air-blowing frames 17 and is fixedly connected with a guide plate 16, the guide plate 16 is fixedly connected to the outer side of the bottom end limiting frame 804, the top of the grounding seat 1 is fixedly connected with a fixing plate 4, one side of the fixing plate 4 is fixedly connected with a pump frame 2, the top of the pump frame 2 is fixedly connected with a conveying pump 3, the conveying end of the conveying pump 3 is fixedly connected with a conveying pipe 12, and the other end of the conveying pipe 12 is fixedly connected to the inner side of the hollow air-blowing frames 17.
Referring to fig. 1, 2 and 8, in a preferred embodiment, one side of the fixing plate 4 is fixedly connected with a cylinder 5, an output end of the cylinder 5 is fixedly connected with a stretching-in long rod 7, an inner supporting reinforcement component 6 is arranged on the outer side of the stretching-in long rod 7, the inner supporting reinforcement component 6 comprises a fixing ring 601, the fixing ring 601 is fixedly connected to the outer side of the stretching-in long rod 7, mounting frames 604 are annularly distributed on the outer side of the fixing ring 601, each mounting frame 604 is fixedly connected with a hydraulic cylinder 606, an output end of each hydraulic cylinder 606 is fixedly connected with an adjusting block 607, each adjusting block 607 is fixedly connected with a self-adjusting spring 602 on the outer side, a shaft bracket 605 is fixedly connected to the other end of each self-adjusting spring 602, the inner side of the shaft bracket 605 is connected with a connecting shaft 608 through a bearing, and a movable ball 603 is fixedly connected to the outer side of the connecting shaft 608.
Referring to fig. 1, 2, 6 and 7, in a preferred embodiment, an embedded groove is formed at one end of the long rod 7, a rotating shaft 11 is connected to the inside of the embedded groove through a bearing, a magnet-type connecting assembly 20 is arranged at the outer side of the rotating shaft 11, the magnet-type connecting assembly 20 comprises a clamping frame 2001, an electromagnet 2003 and a bonding block 2004, the bonding block 2004 is fixedly connected to the outer side of the rotating shaft 11, the electromagnet 2003 is fixedly connected to the outer side of the bonding block 2004, the clamping frame 2001 is connected to two sides of the bonding block 2004 through hinges, compression springs 2005 are fixedly connected to opposite sides of the clamping frame 2001 and the bonding block 2004 at equal distances, friction teeth 2002 are fixedly connected to the outer side of each clamping frame 2001 at equal distances, a connecting spring 14 is fixedly connected to the bottom of the back air box 9 at equal distances, the other ends of the plurality of connecting springs 14 are fixedly connected to the same mounting plate 10, two telescopic plates 15 are fixedly connected to opposite sides of the mounting plate 10 and the back air box 9, the two telescopic plates 15 are positioned at two ends of the connecting springs 14, and the bottoms of the mounting plate 10 are provided with iron plates 13, 13 and 13 are adsorbed to the electromagnet 2003.
When the back air box 9 and the mobile device are connected, the iron plate 13 below the mounting plate 10 is placed between the corresponding holders 2001, and when the electromagnet 2003 at the position is energized, the iron plate 13 and the electromagnet 2003 are closely adsorbed, and the compression spring 2005 is compressed in the adsorption process, and the reaction force of the compression spring 2005 drives the holders 2001 to compress and limit the mounting plate 10, so that the connection firmness between the two is improved.
The application method of the back gas protection device is applied to the back gas protection device, and comprises the following steps of:
s1: when the back air box 9 and the mobile equipment are connected, the iron plate 13 below the mounting plate 10 is placed between the corresponding clamping frames 2001, when the electromagnet 2003 at the position is electrified, the iron plate 13 and the electromagnet 2003 are closely adsorbed, the compression spring 2005 is compressed in the adsorption process, and the clamping frames 2001 are driven by the reaction force of the compression spring 2005 to compress and limit the mounting plate 10, so that the mounting of the back air box 9 is completed;
s2: after the back air box 9 is installed, the adjusting cylinder 5 drives the extension rod 7 to move, so that the back air box 9 is moved to the back of the welding surface, inert gas is conveyed into the back air box 9 through the conveying pump 3, air at the back air box 9 is extruded, then the air pump 806 is started, the air pump 806 fills the sealing air bag 801 with gas to expand the sealing air bag 801, and the expanded sealing air bag 801 drives the contact cushion 802 to seal between the back air box 9 and the cylinder;
s3: after the sealing is finished, the electric telescopic rod 1902 is adjusted to drive the friction bending rod 1904 to contact with the inner side of the cylinder body, so that the friction force between the friction bending rod 1904 and the cylinder body is increased, and the back air box 9 rotates along with the rotation of the cylinder body without repeated manual adjustment of the position of the back air box 9.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a back of body gas protection device, including ground connection seat (1) and back of body gas box (9), its characterized in that, be equipped with laminating seal assembly (8) on back of body gas box (9), and laminating seal assembly (8) are including bottom spacing frame (804), bottom spacing frame (804) fixedly connected with in the top of back of body gas box (9), the inside of bottom spacing frame (804) is equipped with sealed gasbag (801), the outside equidistance fixedly connected with mould bent rod (805) that bottom spacing frame (804) are located sealed gasbag (801), mould bent rod (805) regard the side of sealed gasbag (801) as the central point symmetry and distribute, the top of sealed gasbag (801) is equipped with contact cushion (802), and the outside equidistance of contact cushion (802) is equipped with elastic connection rope (803), the other end of elastic connection rope (803) all is located the outside of back of body gas box (9), the inside of body gas box (9) is equipped with air pressure sensor (808), and one side fixedly connected with backup pad (807), the top fixedly connected with air pump (806) of backup pad (806) is located the inside of sealed gasbag (809), the air conveying end (809) of gas pump (809) is connected with inside sealed gasbag (809;
the bottom inner wall fixedly connected with cavity air-blowing frame (17) of back of body air box (9), and the outside equidistance of cavity air-blowing frame (17) leaves there is filling hole (18), and the inside of back of body air box (9) in cavity air-blowing frame (17) both sides is equal fixedly connected with guide plate (16), guide plate (16) fixedly connected with in the outside of bottom spacing frame (804), the top fixedly connected with fixed plate (4) of ground connection seat (1), and one side fixedly connected with pump frame (2) of fixed plate (4), the top fixedly connected with delivery pump (3) of pump frame (2), the conveyer pipe (12) of conveyer pipe (3) is fixed connection, the other end fixedly connected with in the inside of cavity air-blowing frame (17) of conveyer pipe (12), one side fixedly connected with cylinder (5) of fixed plate (4), the output fixedly connected with extension stock (7) of cylinder (5), the outside of extension stock (7) is equipped with internal stay reinforcement subassembly (6), and internal stay reinforcement subassembly (6) include solid fixed ring (601), gu fixed ring (7) are connected with in the inside of the extension stock (7) and are connected with one end of magnet-embedded groove (11) through the fixed connection of the extension stock (11), the magnetic type connecting assembly (20) comprises clamping frames (2001), electromagnets (2003) and attaching blocks (2004), the attaching blocks (2004) are fixedly connected to the outer sides of rotating shafts (11), the electromagnets (2003) are fixedly connected to the outer sides of the attaching blocks (2004), the clamping frames (2001) are connected to two sides of the attaching blocks (2004) through hinges, extrusion springs (2005) are fixedly connected to opposite sides of the clamping frames (2001) and the attaching blocks (2004) at equal distances, friction teeth (2002) are fixedly connected to the outer sides of each clamping frame (2001) at equal distances, connecting springs (14) are fixedly connected to the bottoms of the back air boxes (9) at equal distances, two telescopic plates (15) are fixedly connected to the other ends of the connecting springs (14), two telescopic plates (15) are located at two ends of the connecting springs (14), iron plates (13) are arranged at the bottoms of the connecting plates (10), and the iron plates (13) are adsorbed by the electromagnets (2003).
2. The back air protection device according to claim 1, wherein the two sides of the back air box (9) are respectively provided with a grabbing follower assembly (19), the grabbing follower assemblies (19) comprise a plurality of friction bending rods (1904), two sides of the back air box (9) are respectively fixedly connected with an outer plate (1901), electric telescopic rods (1902) are fixedly connected to opposite sides of the two outer plates (1901) at equal distances, the other ends of the plurality of electric telescopic rods (1902) located on the same outer plate (1901) are provided with the same ejection column (1905), part of friction bending rods (1904) are fixedly connected to the outer sides of the ejection column (1905), and the other part of friction bending rods (1904) are connected to the outer sides of the ejection column (1905) through hinges.
3. The back air protection device according to claim 2, wherein an abutting rod (1906) is fixedly connected to the outer side of the ejection column (1905), dislocation springs (1903) are fixedly connected to the outer side of the abutting rod (1906) facing the friction bending rod (1904) at equal intervals, the other ends of the dislocation springs (1903) are fixedly connected to the outer sides of the friction bending rods (1904), and the dislocation springs (1903) are distributed at intervals at the positions of the friction bending rods (1904).
4. A back air protection device according to claim 3, characterized in that the outer side of the fixing ring (601) is annularly provided with mounting frames (604), the inside of each mounting frame (604) is fixedly connected with hydraulic cylinders (606), the output end of each hydraulic cylinder (606) is fixedly connected with adjusting blocks (607), the outer side of each adjusting block (607) is fixedly connected with self-adjusting springs (602), the other end of each self-adjusting spring (602) is fixedly connected with a shaft bracket (605), the inner side of the shaft bracket (605) is connected with a connecting shaft (608) through a bearing, and the outer side of the connecting shaft (608) is fixedly connected with a movable ball (603).
5. A method of using a back gas protection device as defined in claim 4, comprising the steps of:
s1: when the back air box (9) is connected with the mobile equipment, an iron plate (13) below the mounting plate (10) is placed between the corresponding clamping frames (2001), the electromagnet (2003) at the position is electrified, the iron plate (13) and the electromagnet (2003) are closely adsorbed, in the adsorption process, the extrusion spring (2005) is compressed, the clamping frames (2001) are driven by the reaction force of the extrusion spring (2005) to extrude and limit the mounting plate (10), and the mounting of the back air box (9) is completed;
s2: after the back air box (9) is installed, the adjusting cylinder (5) drives the extending long rod (7) to move, so that the back air box (9) is moved to the back of the welding, inert gas is conveyed into the back air box (9) through the conveying pump (3), air at the back air box (9) is extruded, then the air pump (806) is started, the air pump (806) fills the sealing air bag (801) with gas to expand the sealing air bag, and the expanded sealing air bag (801) drives the contact soft cushion (802) to seal between the back air box (9) and the cylinder;
s3: after the sealing is finished, the electric telescopic rod (1902) is adjusted to drive the friction bending rod (1904) to contact with the inner side of the cylinder body, so that the friction force between the friction bending rod and the cylinder body is increased, and the back air box (9) rotates along with the rotation of the cylinder body without repeatedly manually adjusting the position of the back air box (9).
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| CN116352358B (en) * | 2023-06-01 | 2023-08-08 | 安徽建筑大学 | Welding device for pump shell fittings |
| CN116902217B (en) * | 2023-09-13 | 2023-12-12 | 辽宁华天航空科技股份有限公司 | Symmetrical positioning assembly and method based on aircraft composite structural member |
| CN117029614B (en) * | 2023-09-28 | 2023-12-15 | 深圳市中络电子有限公司 | High-precision external dimension control and inspection jig |
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| CN115922158A (en) | 2023-04-07 |
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