CN114345977A - Method for processing radian gas delivery pipe for gas appliance - Google Patents
Method for processing radian gas delivery pipe for gas appliance Download PDFInfo
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- CN114345977A CN114345977A CN202111520611.5A CN202111520611A CN114345977A CN 114345977 A CN114345977 A CN 114345977A CN 202111520611 A CN202111520611 A CN 202111520611A CN 114345977 A CN114345977 A CN 114345977A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 210000001503 joint Anatomy 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 30
- 238000001125 extrusion Methods 0.000 description 10
- 238000007373 indentation Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a method for processing a radian gas delivery pipe for a gas appliance, which comprises the following steps: (a) installing a tube clamping seat; (b) fixing the straight pipe; (c) clamping a bent pipe; (d) butt joint; (e) and (4) dismantling. The invention has simple process, convenient butt joint, low operation difficulty, labor saving, convenience, easy control, adjustment and accurate centering, solves the problem that the central axis of the straight pipe is not coincident with the central axis of the pipe orifice of the bent pipe at present, and ensures the finished product quality of the radian gas pipe.
Description
Technical Field
The invention belongs to the technical field of pipelines for gas appliances, and particularly relates to a method for processing a radian gas conveying pipe for a gas appliance.
Background
A gas appliance refers to an appliance using a gas such as liquefied petroleum gas, artificial gas, or natural gas as a fuel. The gas pipe for the gas appliance has various shapes, such as a straight line shape, an arc shape, a U shape and the like, wherein the radian gas pipe is mainly formed by welding a straight pipe and an elbow pipe, and the following problems exist in the processing process: the alignment difficulty of the straight pipe and the bent pipe is high, the central axis of the straight pipe is not coincident with the central axis of the pipe orifice of the bent pipe easily, and the butt joint part is dislocated, shifted or deviated, so that errors are generated, and the product quality is reduced.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, provides a processing method of the radian gas delivery pipe for the gas appliance, has the advantages of simple process, convenient butt joint, low operation difficulty, labor saving, convenience, easy control and adjustment, accurate centering, solves the problem that the central axis of the straight pipe is not coincident with the central axis of the pipe orifice of the bent pipe at present, and ensures the finished product quality of the radian gas delivery pipe.
In order to solve the technical problems, the invention adopts the following technical scheme:
the processing method of the radian gas transmission pipe for the gas appliance is characterized by comprising the following steps of:
(a) installing a tube clamping seat: fixing the pipe clamping seat on a workbench of a pipe clamping device;
(b) fixing a straight pipe: obtaining a straight pipe and a bent pipe through casting and molding;
firstly, sliding a pressure rod on a pipe clamping seat outwards, and then vertically placing a straight pipe on a bottom plate of the pipe clamping seat;
starting a stroke cylinder, driving a driving plate to descend by the stroke cylinder, driving the V-shaped transmission arm to rotate by the driving plate, enabling an arc-shaped part at the upper end of the V-shaped transmission arm to rotate inwards, pushing a pressing rod to be close to the straight pipe, enabling the pressing rod to be abutted against the outer wall of the straight pipe, and enabling the straight pipe to be limited on a pipe clamping seat;
(c) clamping a bent pipe:
sleeving a driven disc on a central screw to obtain an inner pipe clamping assembly;
secondly, an arc pipe clamping arm between the limiting disc and the driven disc extends into a pipe orifice of the bent pipe, the limiting disc is grasped, a center screw is rotated to connect the center screw with the limiting disc, the center screw pushes the driven disc to be close to the limiting disc through a supporting block, the arc pipe clamping arms distributed in the circumferential direction are enabled to be unfolded outwards, pipe clamping rollers on the arc pipe clamping arms are attached to the inner wall of the pipe orifice of the bent pipe, and the bent pipe is clamped by the inner pipe clamping assembly;
(d) butt joint:
firstly, extending a central screw rod into a straight pipe and penetrating through an installation through hole on a workbench to enable a pipe orifice of a bent pipe to be abutted against a pipe orifice of the straight pipe;
welding the joint of the straight pipe and the bent pipe to fix the straight pipe and the bent pipe into a whole to obtain a radian gas delivery pipe;
(e) dismantling:
firstly, starting a stroke cylinder again, wherein the stroke cylinder drives a driving plate to rise to drive a V-shaped transmission arm to rotate outwards, and an arc-shaped part does not abut against a pressure rod any more, so that the radian gas pipe is taken down from a workbench;
and secondly, rotating the central screw rod outwards to drive the supporting block to move outwards, so that the supporting block does not abut against the driven disc any more, and taking the inner pipe clamping assembly out of the straight pipe.
Further, step (d) is followed by step (c): inserting a convex end of one stainless steel semicircular ring into a positioning groove of the other stainless steel semicircular ring, so that the two stainless steel semicircular rings are butted to form a complete sealing ring which is sleeved outside the joint of a straight pipe and a bent pipe; the connecting part of the straight pipe, the bent pipe and the stainless steel semicircular ring is welded, the sealing ring is of a split structure and is split into two parts, batch manufacturing can be achieved, the cost is low, butt joint is simple, operation difficulty is low, the sealing ring is fixed and firm and is not prone to falling off, the connecting part of the straight pipe and the bent pipe is blocked, sealing performance is improved, air leakage is prevented, and therefore the using performance of the radian gas conveying pipe is improved.
Further, the specific method of the step (a) is as follows: firstly, inserting a fixing stud at the bottom of a pipe clamping seat into a limiting through hole in a workbench in an aligning manner, and inserting a positioning column at the bottom of the pipe clamping seat into a positioning through hole in the workbench in an aligning manner, so that the pipe clamping seat is positioned and installed on the workbench; and secondly, mounting a fastening nut on the fixed stud until the fastening nut is attached to the bottom surface of the workbench, so that the pipe clamping seat is limited and fixed on the workbench.
Further, the bottom of tube clamping seat is equipped with fixing stud and reference column, be equipped with spacing through-hole and positioning hole on the workstation, the central point of spacing through-hole, positioning hole's central point and the geometric centre point of workstation are located same straight line, spacing through-hole is corresponding with fixing stud, positioning hole and reference column are corresponding, be connected with fastening nut on the fixing stud, fastening nut pins fixing stud and deviates from spacing through-hole with the restriction fixing stud, the tube clamping seat can be dismantled, it is removable to damage, along with the dress along with using, it is nimble convenient to use, the installation is reliable, the location is simple, the skew can not take place for the position, keep the straight tube in the central zone of workstation.
Further, in the step (d), a limit nut is mounted on the central screw rod until the limit nut is attached to the bottom surface of the workbench, the central screw rod is limited and fixed on the workbench, the bent pipe is in close contact with the straight pipe, a gap between the bent pipe and the straight pipe is small, the welding forming quality is higher, meanwhile, the straight pipe is pressed down by the bent pipe, the vertical placing reliability of the straight pipe is improved, and the phenomenon that the machining quality is influenced due to the play in the welding process is prevented.
Further, the pipe clamping device in the step (a) comprises a base and a workbench, the workbench is arranged above the base, an inner pipe clamping assembly and a pipe clamping seat are arranged on the workbench, the pipe clamping seat is distributed around the inner pipe clamping assembly as a center, the inner pipe clamping assembly comprises a center screw, a driven disc and a limiting disc, the limiting disc is in threaded connection with the center screw, the center screw penetrates through the driven disc, arc-shaped pipe clamping arms are distributed on the periphery of the driven disc, the arc-shaped pipe clamping arms are connected to the limiting disc in a sliding mode, one ends of the arc-shaped pipe clamping arms are connected with pipe clamping rollers, and the center screw drives the driven disc to move up and down through a supporting block so as to achieve the folding and unfolding actions of the arc-shaped pipe clamping arms; the pipe clamping seat comprises a bottom plate, a fixing clamping block, an installation block and a pressing rod, wherein the fixing clamping block and the installation block are arranged on the bottom plate, the pressing rod is connected to the installation block in a sliding mode, the bottom plate is arranged on the workbench, a stroke cylinder is arranged on the base, the stroke cylinder is connected with a driving plate, a V-shaped transmission arm is connected between the driving plate and the workbench in a rotating mode, an arc-shaped portion is arranged at the upper end of the V-shaped transmission arm, and the stroke cylinder drives the V-shaped transmission arm to rotate through the driving plate so as to enable the arc-shaped portion to push the pressing rod to be close to the fixing clamping block.
Furthermore, the geometric center of the workbench is provided with an installation through hole corresponding to the central screw rod, the central screw rod is connected with a limiting nut, the limiting nut is located below the workbench, the inner pipe clamping assembly is flexible to disassemble and assemble, and is convenient to use along with the assembly, and the operation difficulty is low.
Furthermore, one end of the pressure rod is provided with a rubber sleeve, and the arrangement of the rubber sleeve increases the contact tightness degree of the pressure rod and the outer wall of the straight pipe on one hand, improves the clamping effect, and buffers the extrusion force of the pressure rod on the straight pipe on the other hand, thereby avoiding the indentation left on the outer wall of the straight pipe; the arc-shaped rubber pads are arranged on the fixed clamping blocks, the contact area between the fixed clamping blocks and the inner wall of the straight pipe is increased due to the arrangement of the arc-shaped rubber pads, the straight pipe is not prone to freely sliding after being clamped, and on the other hand, the fixed clamping blocks are prevented from being in rigid contact with the inner wall of the straight pipe to generate indentations, and the quality of the straight pipe is not affected.
Further, be equipped with the fixed stay between base and the workstation, the fixed stay uses the stroke cylinder to encircle the distribution as the center, has improved the joint strength between base and the workstation, and the base passes through the fixed stay and gives the workstation support, has improved the bearing strength of workstation, guarantees that the piston rod of stroke cylinder has sufficient motion space.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
in the process of installing the straight pipe, the fixed clamping block on the bottom plate is positioned in the straight pipe, so that the sliding range of the straight pipe is limited, the initial positioning of the straight pipe on the pipe clamping seat is realized, and the positioning difficulty is reduced; the stroke cylinder drives the driving plate to descend, the driving plate drives the V-shaped driving arm to rotate, the arc-shaped part at the upper end of the V-shaped driving arm rotates inwards, the pressing rod is pushed to be close to the straight pipe to be abutted against the outer wall of the straight pipe, the straight pipe is limited on the pipe clamping seat, the straight pipe is subjected to inward extrusion forces in multiple directions simultaneously, the action directions of the extrusion forces point to the center of the straight pipe, the straight pipe is clamped and fixed, the straight pipe clamping device is reliable and stable, and the straight pipe clamping device is suitable for straight pipes with different pipe diameters, strong in applicability, high in automation degree, capable of reducing manual operation intensity, labor-saving and convenient; the pipe clamping seats in all the directions face to the geometric center of the workbench, so that the central axis of the straight pipe is coincident with the central axis of the workbench.
In-process at the installation return bend, pivoted central screw rod passes through the tray and promotes that the driven plate is close to spacing dish, make the arc that circumference distributes press from both sides the pipe arm and outwards expand, the mouth of pipe inner wall of return bend is hugged closely to the clamp pipe roller on the arc presss from both sides the pipe arm, make interior clamp pipe subassembly clip the return bend, central screw rod is located the mouth of pipe center of return bend, the mouth of pipe end of return bend receives the ascending outside extrusion force in a plurality of directions simultaneously, the extension line of the effect direction of these extrusion forces is handed in the straight tube center, make the return bend fixed by the centre gripping, reliable and stable, applicable return bend in different mouth of pipe diameter sizes, and the suitability is strong.
In the butt joint process, the central screw rod extends into the straight pipe and penetrates through the mounting through hole on the workbench, so that the pipe orifice of the bent pipe is abutted against the pipe orifice of the straight pipe, the central axis of the pipe orifice of the bent pipe is superposed with the central axis of the straight pipe, the accurate centering is realized, the butt joint quality is high, the butt joint is in place in one step, the operation is simple, the control is easy, and the working efficiency is high; then install limit nut on central screw rod for central screw rod is spacing to be fixed on the workstation, makes return bend and straight tube in close contact with, and the gap between the two is little, and the weld forming quality is higher, and the straight tube is pushed down to the return bend simultaneously, has improved the vertical reliability of putting of straight tube, prevents to take place the drunkenness among the welding process and influences processingquality.
Install the sealing ring additional in the junction of straight tube and return bend, blocked the junction gap of straight tube and return bend through the sealing ring, improved the leakproofness, prevent gas leakage, improved the performance of radian gas-supply pipe, connect straight tube and return bend simultaneously through the sealing ring, indirectly improved the joint strength between straight tube and the return bend, and then improved the quality of radian gas-supply pipe.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view showing the structure of the pipe clamping device according to the present invention in connection with a straight pipe and a bent pipe;
FIG. 2 is a schematic structural view of a pipe clamping device according to the present invention;
FIG. 3 is a schematic structural view of an inner clamp assembly of the present invention;
FIG. 4 is a schematic structural view of the connection between the driven plate and the limiting plate according to the present invention;
FIG. 5 is a schematic view of the connection between the worktable and the pipe clamping seat in the present invention;
FIG. 6 is a schematic view of a collet base of the present invention;
FIG. 7 is a schematic view showing the connection structure of the sealing ring with the straight pipe and the bent pipe according to the present invention.
In the figure: 1-a base; 2-a workbench; 3-inner clamping tube component; 4-clamping tube seat; 5-a central screw; 6-driven disc; 7-a limiting disc; 8-mesopores; 9-central screw hole; 10-arc-shaped clamp tube arms; 11-strip-shaped through grooves; 12-a fixation pin; 13-a tube clamping roller; 14-a support block; 15-a base plate; 16-fixing the clamping block; 17-a mounting block; 18-a compression bar; 19-fixing studs; 20-a positioning column; 21-a limiting through hole; 22-positioning through holes; 23-mounting a through hole; 24-a fastening nut; 25-stroke cylinder; 26-a drive plate; a 27-V type transmission arm; 28-an arc; 29-limit nut; 30-a rubber sleeve; 31-arc rubber pad; 32-a fixed post; 33-straight pipe; 34-a bent pipe; 35-stainless steel semicircular ring; 36-a convex end; 37-positioning groove.
Detailed Description
As shown in fig. 1 to 7, the method for processing the radian gas pipe for the gas appliance is a pipe clamping device used in the method for processing the radian gas pipe in the invention, and comprises the following steps:
(a) installing a tube clamping seat:
the pipe clamping device comprises a base 1 and a workbench 2, the workbench 2 is arranged above the base 1, an inner pipe clamping component 3 and a pipe clamping seat 4 are arranged on the workbench 2, the pipe clamping seat 4 is distributed by surrounding the inner pipe clamping component 3 as a center, the inner pipe clamping component 3 comprises a central screw 5, a driven disc 6 and a limiting disc 7, the central screw 5 passes through a middle hole 8 on the driven disc 6, the limiting disc 7 is in threaded connection with the central screw 5 through a central screw hole 9, the driven disc 6 is connected with an arc-shaped pipe clamping arm 10 in a circumferential rotation mode, the arc-shaped pipe clamping arm 10 is connected on the limiting disc 7 in a sliding mode, an open slot is distributed on the limiting disc 7 in the circumferential direction, a strip-shaped through slot 11 is formed in the arc-shaped pipe clamping arm 10, a fixing pin 12 is arranged in the strip-shaped through slot 11, one end of the arc-shaped pipe clamping arm 10 is connected with a pipe clamping roller 13, the contact area with the pipe wall is large, the clamping effect is good, and the central screw 5 drives the driven disc 6 to do lifting motion through the supporting block 14 so as to realize the folding and unfolding action of the arc-shaped pipe clamping arm 10; the tube clamping seat 4 comprises a bottom plate 15 and a fixed clamping block 16, the fixing clamp block 16 and the mounting block 17 are arranged on the bottom plate 15, the pressure rod 18 is connected to the mounting block 17 in a sliding mode, a fixing stud 19 and a positioning column 20 are arranged at the bottom of the bottom plate 15, a limiting through hole 21 and a positioning through hole 22 are arranged on the workbench 2, a mounting through hole 23 corresponding to the central screw rod 5 is arranged at the geometric center of the workbench 2, the central point of the limiting through hole 21, the central point of the positioning through hole 22 and the central point of the mounting through hole 23 are located on the same straight line, the limiting through hole 21 corresponds to the fixing stud 19, the positioning through hole 22 corresponds to the positioning column 20, a fastening nut 24 is connected onto the fixing stud 19, the fastening nut 24 locks the fixing stud 19 to limit the fixing stud 19 to be separated from the limiting through hole 21, the pipe clamping base 4 is detachable, replaceable in damage and convenient and flexible to use. Be equipped with stroke cylinder 25 on base 1, stroke cylinder 25 is connected with drive plate 26, rotates between drive plate 26 and the workstation 2 to be connected with V type drive arm 27, and the upper end of V type drive arm 27 is equipped with arc portion 28, and stroke cylinder 25 drives V type drive arm 27 through drive plate 26 and rotates in order to realize that arc portion 28 promotes depression bar 18 and is close to fixed clamp splice 16.
The central screw rod 5 is connected with a limit nut 29, the limit nut 29 is positioned below the workbench 2, the inner pipe clamping component 3 can be detached from the workbench 2 and can be used along with the installation, and the operation difficulty is low. One end of the pressure lever 18 is provided with a rubber sleeve 30, and the arrangement of the rubber sleeve 30 increases the contact tightness degree of the pressure lever 18 and the outer wall of the straight pipe on one hand, improves the clamping effect, and buffers the extrusion force of the pressure lever 18 on the straight pipe on the other hand, thereby avoiding the indentation left on the outer wall of the straight pipe; the arc-shaped rubber pads 31 are arranged on the fixed clamping blocks 16, on one hand, the contact area between the fixed clamping blocks 16 and the inner wall of the straight pipe is increased due to the arrangement of the arc-shaped rubber pads 31, the straight pipe is not prone to freely sliding after being clamped, on the other hand, indentation caused by rigid contact between the fixed clamping blocks 16 and the inner wall of the straight pipe is avoided, and the quality of the straight pipe is not affected. Be equipped with the fixed stay 32 between base 1 and the workstation 2, the fixed stay 32 uses stroke cylinder 25 to encircle the distribution as the center, has improved the joint strength between base 1 and the workstation 2, and base 1 gives workstation 2 through fixed stay 32 and supports, has improved the bearing strength of workstation 2, guarantees that stroke cylinder 25's piston rod has sufficient motion space.
Fixing the tube clamping seat 4 on the workbench 2 by the following specific steps: firstly, a fixing stud 19 at the bottom of the tube clamping seat 4 is aligned with a limiting through hole 21 on the workbench 2 to be inserted, and a positioning column 20 at the bottom of the tube clamping seat 4 is aligned with a positioning through hole 22 on the workbench 2 to be inserted, so that the tube clamping seat 4 is positioned and installed on the workbench 2, and the positioning device is simple in positioning, low in operation difficulty, rapid and convenient. Secondly, a fastening nut 24 is arranged on the fixed stud 19 until the fastening nut 24 is attached to the bottom surface of the workbench 2, so that the tube clamping seat 4 is limited and fixed on the workbench 2, the tube clamping seat 4 cannot move freely, the position cannot deviate, the installation is reliable, the tube clamping seats 4 in all directions face the geometric center of the workbench 2, and the straight tube is kept in the central area of the workbench 2 after being installed.
(b) Fixing a straight pipe: obtaining a straight pipe 33 and a bent pipe 34 through casting molding;
firstly, the compression bar 18 on the pipe clamping seat 4 slides outwards, then the straight pipe 33 is vertically placed on the bottom plate 15 of the pipe clamping seat 4, the straight pipe 33 is supported by the bottom plate 15, the fixed clamping block 16 on the bottom plate 15 is positioned in the straight pipe 33, the sliding range of the straight pipe 33 is limited, the primary positioning of the straight pipe 33 on the pipe clamping seat 4 is realized, and the positioning difficulty is reduced.
The stroke cylinder 25 is started, the stroke cylinder 25 drives the driving plate 26 to descend, the driving plate 26 drives the V-shaped driving arm 27 to rotate, the arc-shaped portion 28 at the upper end of the V-shaped driving arm 27 rotates inwards, the pressing rod 18 is pushed to be close to the straight pipe 33, the straight pipe 33 is enabled to abut against the outer wall of the straight pipe 33, the straight pipe 33 is limited on the pipe clamping seat 4, the straight pipe 33 simultaneously receives inward extrusion forces in multiple directions, the action directions of the extrusion forces all point to the center of the straight pipe 33, the straight pipe 33 is clamped and fixed, the automatic pipe clamping device is reliable and stable, and is suitable for straight pipes 33 with different pipe diameters, high in applicability and high in automation degree, reduces manual operation intensity, and is labor-saving and convenient.
(c) Clamping the bent pipe 34:
firstly, the driven disc 6 is sleeved on the central screw rod 5 to obtain the inner pipe clamping component 3, and the inner pipe clamping component is simple to assemble, convenient and flexible to assemble and use.
Secondly, the arc-shaped clamping pipe arm 10 extends into a pipe orifice of the bent pipe 34, the limiting disc 7 is grasped, the central screw 5 is rotated, the central screw 5 is in threaded connection with the limiting disc 7, the driven disc 6 cannot move freely relative to the central screw 5, and the inner clamping pipe assembly 3 cannot be freely disassembled; along with central screw 5 rotates forward, central screw 5 promotes driven plate 6 through tray 14 and is close to spacing dish 7, make the arc that circumference distributes press from both sides pipe arm 10 outwards expand, the pipe clamp roller 13 on the arc presss from both sides pipe arm 10 pastes the mouth of pipe inner wall of return bend 34, make interior pipe clamp subassembly 3 clip return bend 34, both link into an organic whole, the operation of being convenient for to take, the mouth of pipe end of return bend 34 receives the ascending extrusion force in a plurality of directions simultaneously, the extension line of the effect direction of these extrusion forces is handed in straight tube 33 center, make return bend 34 fixed by the centre gripping, and is reliable and stable, applicable in return bend 34 of different mouth of pipe diameters sizes, and the suitability is strong.
(d) Butt joint:
firstly, the central screw rod 5 extends into the straight pipe 33 and penetrates through the mounting through hole 23 on the workbench 2, so that the pipe orifice of the bent pipe 34 is abutted against the pipe orifice of the straight pipe 33, at the moment, the bent pipe 34 is supported by the straight pipe 33, the inner clamping pipe assembly 3 is rapidly mounted and positioned on the workbench 2, the mounting through hole 23 is positioned at the center of the straight pipe 33, and the central screw rod 5 is positioned at the center of the pipe orifice of the bent pipe 34, so that the central axis of the pipe orifice of the bent pipe 34 is superposed with the central axis of the straight pipe 33, accurate centering is realized, the butt joint quality is high, one-step positioning is realized, the operation is simple, the control is easy, and the working efficiency is high.
Then install limit nut 29 on central screw rod 5, until limit nut 29 pastes the bottom surface of workstation 2, make central screw rod 5 spacing fix on workstation 2, make return bend 34 and straight tube 33 in close contact with, the gap between the two is little, and the welding forming quality is higher, and return bend 34 pushes down straight tube 33 simultaneously, has improved the reliability of putting immediately of straight tube 33, prevents to take place the drunkenness among the welding process and influences processingquality.
Secondly, the joint of the straight pipe 33 and the bent pipe 34 is welded, so that the straight pipe 33 and the bent pipe 34 are fixed into a whole to obtain the radian gas transmission pipe, and the radian gas transmission pipe is welded into a whole, and has high connection strength and stable structure.
Inserting the convex end 36 of one stainless steel semicircular ring 35 into the positioning groove 37 of the other stainless steel semicircular ring 35, so that the two stainless steel semicircular rings 35 are butted to form a complete sealing ring which is sleeved outside the joint of the straight pipe 33 and the bent pipe 34; and then welding the joints of the straight pipe 33, the bent pipe 34 and the stainless steel semicircular ring 35, cleaning the craters and improving the surface attractiveness. The sealing ring is of a split structure, is divided into two parts, can be manufactured in batches, is low in cost, simple in butt joint, low in operation difficulty, firm in fixation and not easy to fall off, blocks the joint of the straight pipe 33 and the elbow pipe 34, improves the sealing performance, prevents air leakage, improves the service performance of the radian gas-supply pipe, simultaneously connects the straight pipe 33 and the elbow pipe 34 through the sealing ring, indirectly improves the connection strength between the straight pipe 33 and the elbow pipe 34, and further improves the quality of the radian gas-supply pipe.
(e) Dismantling:
firstly, starting the stroke cylinder 25 again, wherein the stroke cylinder 25 drives the driving plate 26 to ascend to drive the V-shaped driving arm 27 to rotate outwards, the arc-shaped part 28 does not abut against the pressure rod 18 any more, the straight pipe 33 section of the radian gas pipe is not subjected to circumferential clamping action any more, the radian gas pipe is taken down from the workbench 2, and at the moment, one end of the central screw rod 5 is exposed out of the straight pipe section of the radian gas pipe;
secondly, the central screw rod 5 is rotated outwards to drive the support block 14 to move outwards, so that the support block 14 does not abut against the driven disc 6 any more, the inner pipe clamping assembly 3 is taken out from the straight pipe 33, the lower central screw rod 5 only needs to be slightly rotated due to the fact that the pipe clamping roller 13 is in close contact with the inner wall of the pipe orifice of the bent pipe section of the radian gas pipe and has large friction force, the support block 14 and the driven disc 6 have a gap, the arc-shaped pipe clamping arm 10 can rotate, the pipe clamping roller 13 does not abut against the inner wall of the pipe orifice of the bent pipe section of the radian gas pipe any more, the inner pipe clamping assembly 3 can be taken out, and the dismantling difficulty is low.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (9)
1. The processing method of the radian gas transmission pipe for the gas appliance is characterized by comprising the following steps of:
(a) installing a tube clamping seat: fixing the pipe clamping seat on a workbench of a pipe clamping device;
(b) fixing a straight pipe: obtaining a straight pipe and a bent pipe through casting and molding;
firstly, sliding a pressure rod on a pipe clamping seat outwards, and then vertically placing a straight pipe on a bottom plate of the pipe clamping seat;
starting a stroke cylinder, driving a driving plate to descend by the stroke cylinder, driving the V-shaped transmission arm to rotate by the driving plate, enabling an arc-shaped part at the upper end of the V-shaped transmission arm to rotate inwards, pushing a pressing rod to be close to the straight pipe, enabling the pressing rod to be abutted against the outer wall of the straight pipe, and enabling the straight pipe to be limited on a pipe clamping seat;
(c) clamping a bent pipe:
sleeving a driven disc on a central screw to obtain an inner pipe clamping assembly;
secondly, an arc pipe clamping arm between the limiting disc and the driven disc extends into a pipe orifice of the bent pipe, the limiting disc is grasped, a center screw is rotated to connect the center screw with the limiting disc, the center screw pushes the driven disc to be close to the limiting disc through a supporting block, the arc pipe clamping arms distributed in the circumferential direction are enabled to be unfolded outwards, pipe clamping rollers on the arc pipe clamping arms are attached to the inner wall of the pipe orifice of the bent pipe, and the bent pipe is clamped by the inner pipe clamping assembly;
(d) butt joint:
firstly, extending a central screw rod into a straight pipe and penetrating through an installation through hole on a workbench to enable a pipe orifice of a bent pipe to be abutted against a pipe orifice of the straight pipe;
welding the joint of the straight pipe and the bent pipe to fix the straight pipe and the bent pipe into a whole to obtain a radian gas delivery pipe;
(e) dismantling:
firstly, starting a stroke cylinder again, wherein the stroke cylinder drives a driving plate to rise to drive a V-shaped transmission arm to rotate outwards, and an arc-shaped part does not abut against a pressure rod any more, so that the radian gas pipe is taken down from a workbench;
and secondly, rotating the central screw rod outwards to drive the supporting block to move outwards, so that the supporting block does not abut against the driven disc any more, and taking the inner pipe clamping assembly out of the straight pipe.
2. The method for processing the radian gas conveying pipe for the gas appliance according to claim 1, is characterized in that: step (d) is followed by step (c): inserting a convex end of one stainless steel semicircular ring into a positioning groove of the other stainless steel semicircular ring, so that the two stainless steel semicircular rings are butted to form a complete sealing ring which is sleeved outside the joint of a straight pipe and a bent pipe; the joints of the straight pipe, the bent pipe and the stainless steel semicircular ring are welded.
3. The method for processing the radian gas conveying pipe for the gas appliance according to claim 1, is characterized in that: the specific method of the step (a) is as follows: firstly, inserting a fixing stud at the bottom of a pipe clamping seat into a limiting through hole in a workbench in an aligning manner, and inserting a positioning column at the bottom of the pipe clamping seat into a positioning through hole in the workbench in an aligning manner, so that the pipe clamping seat is positioned and installed on the workbench; and secondly, mounting a fastening nut on the fixed stud until the fastening nut is attached to the bottom surface of the workbench, so that the pipe clamping seat is limited and fixed on the workbench.
4. The method for processing the radian gas conveying pipe for the gas appliance according to claim 3, is characterized in that: the fixture comprises a base, a worktable, a fixing stud and a positioning column, wherein the base is provided with a limiting through hole and a positioning through hole, the central point of the limiting through hole, the central point of the positioning through hole and the geometric central point of the worktable are positioned on the same straight line, the limiting through hole corresponds to the fixing stud, the positioning through hole corresponds to the positioning column, the fixing stud is connected with a fastening nut, and the fastening nut locks the fixing stud to limit the fixing stud to be separated from the limiting through hole.
5. The method for processing the radian gas conveying pipe for the gas appliance according to claim 1, is characterized in that: and (d) mounting a limit nut on the central screw rod until the limit nut is attached to the bottom surface of the workbench, so that the central screw rod is limited and fixed on the workbench.
6. The method for processing the radian gas conveying pipe for the gas appliance according to claim 1, is characterized in that: the pipe clamping device in the step (a) comprises a base and a workbench, the workbench is arranged above the base, an inner pipe clamping assembly and a pipe clamping seat are arranged on the workbench, the pipe clamping seat is distributed around the inner pipe clamping assembly as a center, the inner pipe clamping assembly comprises a center screw, a driven disc and a limiting disc, the limiting disc is in threaded connection with the center screw, the center screw penetrates through the driven disc, arc-shaped pipe clamping arms are distributed on the periphery of the driven disc, the arc-shaped pipe clamping arms are connected to the limiting disc in a sliding mode, one end of each arc-shaped pipe clamping arm is connected with a pipe clamping roller, and the center screw drives the driven disc to move up and down through a supporting block so as to achieve folding and unfolding actions of the arc-shaped pipe clamping arms; the pipe clamping seat comprises a bottom plate, a fixing clamping block, an installation block and a pressing rod, the fixing clamping block is arranged on the bottom plate, the pressing rod is connected to the installation block in a sliding mode, the bottom plate is arranged on the workbench, a stroke cylinder is arranged on the base and connected with a drive plate, a V-shaped transmission arm is connected between the drive plate and the workbench, an arc-shaped portion is arranged at the upper end of the V-shaped transmission arm, and the stroke cylinder drives the V-shaped transmission arm to rotate to achieve the effect that the arc-shaped portion pushes the pressing rod to be close to the fixing clamping block.
7. The method for processing the radian gas conveying pipe for the gas appliance according to claim 6, is characterized in that: the geometric center of the workbench is provided with an installation through hole corresponding to the central screw rod, the central screw rod is connected with a limiting nut, and the limiting nut is positioned below the workbench.
8. The method for processing the radian gas conveying pipe for the gas appliance according to claim 6, is characterized in that: one end of the pressure lever is provided with a rubber sleeve, and the fixed clamping block is provided with an arc-shaped rubber pad.
9. The method for processing the radian gas conveying pipe for the gas appliance according to claim 6, is characterized in that: the base with be equipped with the fixed stay between the workstation, the fixed stay with the stroke cylinder encircles the distribution as the center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111520611.5A CN114345977B (en) | 2021-12-13 | 2021-12-13 | Method for processing radian gas transmission pipe for gas appliance |
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| CN202111520611.5A CN114345977B (en) | 2021-12-13 | 2021-12-13 | Method for processing radian gas transmission pipe for gas appliance |
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| CN114345977B CN114345977B (en) | 2024-04-30 |
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| DE202012000825U1 (en) * | 2012-01-19 | 2012-03-06 | Procon Gesmbh Maschinen- Und Industrieanlagen | Modular welding device |
| CN210165379U (en) * | 2019-07-13 | 2020-03-20 | 宁波友谊铜业有限公司 | Air inlet pipeline assembly of combustor |
| CN111817517A (en) * | 2020-06-18 | 2020-10-23 | 浙江蓝炬星电器有限公司 | Manufacturing method for end cover of direct current motor and clamping device thereof |
| CN113339585A (en) * | 2021-06-15 | 2021-09-03 | 浙江江南春建设集团有限公司 | Construction method of internally-penetrated steel pipe for water diversion project top pipe |
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2021
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| DE202012000825U1 (en) * | 2012-01-19 | 2012-03-06 | Procon Gesmbh Maschinen- Und Industrieanlagen | Modular welding device |
| CN210165379U (en) * | 2019-07-13 | 2020-03-20 | 宁波友谊铜业有限公司 | Air inlet pipeline assembly of combustor |
| CN111817517A (en) * | 2020-06-18 | 2020-10-23 | 浙江蓝炬星电器有限公司 | Manufacturing method for end cover of direct current motor and clamping device thereof |
| CN113339585A (en) * | 2021-06-15 | 2021-09-03 | 浙江江南春建设集团有限公司 | Construction method of internally-penetrated steel pipe for water diversion project top pipe |
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| CN114345977B (en) | 2024-04-30 |
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