CN113441900B - Tool and method for welding exhaust pipe, scavenging box flange and supercharger flange - Google Patents
Tool and method for welding exhaust pipe, scavenging box flange and supercharger flange Download PDFInfo
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- CN113441900B CN113441900B CN202110558348.2A CN202110558348A CN113441900B CN 113441900 B CN113441900 B CN 113441900B CN 202110558348 A CN202110558348 A CN 202110558348A CN 113441900 B CN113441900 B CN 113441900B
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- support
- smoke exhaust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention relates to a welding tool and a welding method for a smoke exhaust pipe, a scavenging box flange and a supercharger flange, wherein the welding tool comprises the following steps: a support: the positioning flange is used for simulating an interface flange of the scavenging air box; a support: the positioning groove is used for simulating a supercharger interface and is provided with a positioning groove matched with a supercharger interface flange, and the positioning groove is provided with a fixing hole used for simulating a supercharger interface flange connecting hole; a support mechanism: the tool is arranged on two sides of the support and used for supporting the smoke exhaust pipe, and production efficiency is improved by adopting the tool.
Description
Technical Field
The invention relates to the technical field of smoke exhaust pipe processing equipment, in particular to a welding tool and a welding method for a smoke exhaust pipe, a scavenging box flange and a supercharger flange.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The exhaust pipe is an important part of an exhaust system of the diesel engine, fuel combustion exhaust gas in the cylinders is exhausted to the exhaust main pipe through the exhaust valve, the exhaust gas of each cylinder is collected and mixed, and then the exhaust gas is exhausted to the turbocharger through the supercharger branch pipe to push the turbine to work.
The smoke exhaust pipe is connected with the scavenging box through a scavenging box flange and is connected with the supercharger through a supercharger flange. The scavenging box flange and the booster flange need to be welded on the smoke exhaust pipe.
In actual welding production of the smoke exhaust pipe, the smoke exhaust pipe is of a circular cylinder structure, the air outlets and the air inlets are distributed on two sides of the smoke exhaust pipe, the air outlets are connected with the supercharger through a supercharger flange, the smoke exhaust pipe seat is connected with the scavenging box through a scavenging box flange, the welding assembly of the flanges is space size, common manual lofting assembly is difficult to achieve, and working hours are seriously consumed.
During actual assembly, the relative positions of the booster flange and the scavenging box flange depend on the respective manufacturing precision of the smoke exhaust pipe, the cylinder body, the booster and the scavenging box, wherein the smoke exhaust pipe and the smoke exhaust pipe support are welded parts, so that the deformation is large during welding, and if the deformation control is not good, the booster flange and the scavenging box flange in the final connecting process are easy to have large size and angle dislocation during assembly, so that only the processed scavenging box flange and the processed booster flange can be assembled and welded in an assembly workshop until now.
The join in marriage welding process is connected supercharger flange and scavenging case flange with supercharger and scavenging case respectively in the assembly shop, then hoist and mount the pipe of discharging fume to the assembly shop from the welding shop, the pipe of discharging fume hoist and mount to the position with supercharger flange and the pipe flange complex of discharging fume, then carry out spot welding with supercharger flange and the pipe flange of discharging fume with the pipe of discharging fume, the pipe of discharging fume is transported to the welding shop again after spot welding is accomplished, then accomplish the final welded fastening of supercharger flange and the pipe flange of discharging fume, and there are many drawbacks in the on-the-spot join in marriage welding of assembly shop, not only need carry out special fire protection, and additionally consume manpower, material resources, brought very big inconvenience for the assembly shop.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a welding tool for a smoke exhaust pipe, a flange of a scavenging box and a flange of a supercharger, which can ensure the accuracy of the welding position of the flange of the scavenging box and the flange of the supercharger in a welding workshop, is convenient for the subsequent assembly of the smoke exhaust pipe, the supercharger and the scavenging box, and does not need to be subjected to welding in an assembly workshop.
In order to realize the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a tool for welding a smoke exhaust pipe, a scavenging box flange and a supercharger flange, including:
a support: the device is used for simulating the scavenging box, and a positioning flange used for simulating a flange at the interface of the scavenging box is arranged at the top of the support;
a support: the positioning groove is used for simulating a supercharger interface and is provided with a positioning groove matched with a supercharger flange, and the positioning groove is provided with a fixing hole used for simulating a supercharger interface flange connecting hole;
a support mechanism: the support is arranged on two sides of the support and used for supporting the smoke exhaust pipe;
the support and the support device are configured to be that after the support mechanism supports the smoke exhaust pipe, the support position is matched with the position of a scavenging box interface of the smoke exhaust pipe, and the support position is matched with the position of an air port of the smoke exhaust pipe.
Optionally, the supporting mechanism comprises supporting plates arranged on two sides of the support, an arc-shaped groove is formed in the top of each supporting plate, and supporting pieces are arranged at two ends of the top of each supporting plate.
Optionally, the supporting member is a U-shaped plate.
Optionally, the two sides of the support are both provided with a support, and the support positioned on the same side of the support is connected with the supporting mechanism through a connecting piece.
Optionally, a model positioning plate is arranged between the support on one side of the support and the support, the support and the support are positioned by the model positioning plate, and the relative position of the support on the other side of the support and the support can be adjusted, locked and fixed.
Optionally, the support, the supporting mechanism and the bracket are all arranged on the base.
In a second aspect, an embodiment of the present invention provides a method for welding a smoke exhaust pipe, a scavenging air box flange and a supercharger flange, wherein a tool for welding a smoke exhaust pipe, a scavenging air box flange and a supercharger flange in the first aspect is adopted, and the method comprises the following steps:
fixedly connecting a pre-processed smoke exhaust pipe base with a positioning flange through a scavenging box flange and a fastening piece at the bottom of the smoke exhaust pipe base;
hoisting the smoke exhaust pipe to the supporting mechanism, and supporting the smoke exhaust pipe by using the supporting mechanism;
placing the supercharger flange to be welded into the positioning groove, and fixedly connecting the supercharger flange to the bracket through the fixing hole and the fastening piece;
welding and fixing a smoke exhaust pipe and a smoke exhaust pipe base, placing a connecting pipe between a supercharger flange to be welded and a gas port of the smoke exhaust pipe, and welding and fixing two ends of the connecting pipe with the smoke exhaust pipe and the supercharger flange respectively;
and taking down the fastening piece, and taking down the smoke exhaust pipe welded with the scavenging box flange and the supercharger flange from the tool.
Optionally, a plurality of support blocks are fixed on the outer circumferential surface of the smoke exhaust pipe, and the support mechanism supports the smoke exhaust pipe through the support blocks.
Optionally, scribing is performed on the smoke exhaust pipe in advance, and the fixing position of the support block on the smoke exhaust pipe is determined according to the scribing.
Optionally, when the line is drawn on the smoke exhaust pipe, a first central line and a second central line are drawn, the first central line passes through the lifting lug at the top of the smoke exhaust pipe, a first plane where the first central line and the axis of the smoke exhaust pipe are located is mutually perpendicular to a second plane where the second central line and the axis of the smoke exhaust pipe are located, and the supporting block is arranged on the second central line in a fixed position.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
1. according to the welding tool and the welding method, the support and the support can respectively and accurately simulate the scavenging box and the supercharger interface flange on the assembly production line, so that after the base of the smoke exhaust pipe and the supercharger flange are welded with the smoke exhaust pipe, the base and the supercharger flange can be accurately connected with the scavenging box and the supercharger in the assembly production line, the position accuracy of the supercharger flange and the scavenging box flange is ensured, and the subsequent assembly production is smoothly carried out.
2. The welding tool and the welding method provided by the invention have the machine type positioning plates, and the support and the bracket are positioned through the machine type positioning plates, so that the accuracy of the relative positions of the support and the bracket is ensured.
3. According to the welding tool and the welding method, the smoke exhaust pipe is supported through the supporting piece and the supporting block, the damage to the surface of the smoke exhaust pipe caused by the fact that the smoke exhaust pipe is directly placed on the supporting mechanism is avoided, meanwhile, the circumferential rotation of the smoke exhaust pipe can be limited through the supporting block, and the welding precision is guaranteed.
4. After the tool is adopted, the assembly welding operation in an assembly workshop is not needed, the lifting time of the smoke exhaust pipe in the welding workshop and the assembly workshop is saved, the booster flange and the scavenging box flange can be assembled and welded in place in the welding workshop in one step, and the production efficiency is greatly improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic drawing of a flue gas exhaust pipe according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of a support block welded to a smoke exhaust pipe in embodiment 2 of the present invention;
FIG. 4 is a schematic view of the assembly of a base of a smoke exhaust pipe, a flange of a scavenging box and a support in embodiment 2 of the invention;
FIG. 5 is a schematic view of a supporting state of a smoke exhaust pipe by a supporting mechanism in embodiment 2 of the present invention;
FIG. 6 is a schematic view of placing a flange of a supercharger into a sink according to embodiment 2 of the present invention;
FIG. 7 is a schematic view of the welding of the connection pipe with the booster flange and the smoke exhaust pipe in embodiment 2 of the present invention;
the device comprises a base 1, a bottom plate 2, side plates 3, a positioning flange 4, a support bottom plate 5, support side plates 6, support top plates 7, sinking grooves 8, supporting plates 9, fixing plates 10, stiffening plates 11, U-shaped plates 12, connecting plates 13, machine type positioning plates 14, positioning plates 15, positioning pin shafts 16, smoke exhaust pipes 17, lifting lugs 18, air ports 19, first central lines 20, second central lines 21, supporting blocks 22, smoke exhaust pipe bases 23, air scavenging box flanges 24, supercharger flanges 25, and connecting pipes 26.
Detailed Description
Example 1
The embodiment discloses a pipe of discharging fume and sweep gas case flange, booster flange welding frock, sweep the gas case flange and be used for on the base of the pipe of discharging fume with sweep the flange that the gas case is connected, during the welding, in advance with discharge fume tub base welded fastening, then will discharge fume tub base welding to discharge fume on the pipe, the booster flange is the flange that sets up the connecting tube tip of the gas port department of discharging fume, and the pipe of discharging fume passes through the booster flange and is connected with the booster, and the connecting tube needs to weld in the gas port department of the pipe of discharging fume for gaseous derivation in the pipe of discharging fume, and the connecting tube is the toper pipe, and the great tip of its area welds with the pipe of discharging fume, and the tip welding booster flange that the area is less.
As shown in figure 1, the tool comprises elements such as a base 1, a support and a supporting mechanism, wherein the support, the support and the supporting mechanism are all installed on the base, the support is used for simulating a scavenging box, the support is used for simulating an air inlet interface of a supercharger, so that the tool can accurately simulate the supercharger and the scavenging box on an actual assembly production line, the supporting mechanism is used for supporting a smoke exhaust pipe, and welding personnel can weld a base, a connecting pipeline and a supercharger flange of the smoke exhaust pipe conveniently.
The scavenging box flange and the supercharger flange are assembled with the support and the bracket respectively before welding, so that the scavenging box flange and the supercharger flange can be accurately positioned, and the assembly requirements of the scavenging box and the supercharger on an actual assembly production line are met after welding.
The support is the box structure that forms by a plurality of steel sheet welding, the box structure can adopt cube box structure also can adopt cylindricality box structure, when adopting cube box structure, the support includes bottom plate 2 and four curb plates 3 of welding on the bottom plate, also welded fastening between the adjacent curb plate, the bottom plate is fixed on the base.
In order to enhance the bearing capacity and stability of the support, the support is provided with a frustum-shaped cubic structure, and the area of the bottom of the support is larger than that of the top of the support.
The top welding of support has a flange 4, flange is used for simulating the sweep case and is used for the interface flange of being connected with the pipe of discharging fume, consequently, flange is the same with the kneck interface flange size of the sweep case that the pipe of discharging fume will be connected, and the quantity, the size and the quantity of arranging and sweeping the connecting hole on the flange of gas case kneck of the connecting hole on the flange are the same completely.
The flange of the scavenging box of the base of the smoke exhaust pipe is mounted behind the positioning flange, which is equivalent to the flange mounted at the joint of the scavenging box, so that the positioning flange of the support can realize the accurate positioning of the flange of the scavenging box.
The both sides of support are provided with the support, the support is arranged in simulating the interface that admits air of booster, and in the actual assembly line, the interface that admits air of booster personally submits the settlement contained angle with the level, consequently, the upper surface and the level of support are personally submitted the settlement contained angle.
The distance between the two supports and the support is equal to the distance between the supercharger interface and the scavenging box in the actual assembly production line, so that the supports and the support can accurately simulate the relative positions of the supercharger and the scavenging box in the actual assembly production line.
In one embodiment, the bracket comprises a bracket bottom plate 5, two triangular bracket side plates 6 are fixed at two ends of the bracket bottom plate, and a bracket top plate 7 is fixed on the bracket side plates.
The through-hole has been seted up to the support roof, and the constant head tank has been seted up to the edge of through-hole, the constant head tank is heavy groove 8, the diameter in heavy groove is the same with the flange diameter that the booster admitted air the kneck, and has seted up a plurality of fixed orificess on the heavy groove, the size of fixed orifices and the size and the distribution of the connecting hole that distributes and the booster admitted air the kneck flange are the same completely for the heavy groove can accurately simulate the booster and admit air the flange of kneck.
The to-be-welded supercharger flange can be placed into the sinking groove and fixedly connected with the support through the fixing hole and the fixing bolt, and the sinking groove can accurately simulate the flange of the supercharger air inlet in the actual assembly production line, so that the sinking groove can accurately position the supercharger flange. The support adopts this kind of fretwork form, makes things convenient for the installation of bolt and nut.
In another embodiment, the bracket may also be a block structure with a triangular cross section, and a sinking groove is formed on the top surface of the bracket.
One side of the support is provided with a supporting mechanism, in the embodiment, two supporting mechanisms are arranged and used for supporting two ends of the smoke exhaust pipe, and the supporting stability is guaranteed.
The supporting mechanism adopts the supporting plate 9, the top of supporting plate is provided with the arc wall for the supporting plate becomes U type bearing structure, has satisfied the support demand to the pipe of discharging fume of cylinder, the supporting plate top both ends are provided with support piece, support piece is used for supporting the pipe of discharging fume.
In order to facilitate the position adjustment of the support plate, the support plate is detachably and fixedly connected with the base, and in one embodiment, a fixing plate 10 perpendicular to the support plate is arranged at the bottom of the support plate and is fixedly connected with the base through a bolt.
In order to enhance the bearing capacity of the supporting plate, a stiffening plate 11 is welded and fixed between the supporting plate and the fixing plate. The stiffening plates are symmetrically arranged on two sides of the supporting plate and arranged in the middle of the supporting plate, and the stiffening plates are triangular plates and are welded and fixed with the fixing plate and the supporting plate.
Support piece adopts U template 12, and U template of equal welded fastening in the top both ends of backup pad, the U template include with backup pad welded fastening's first supporting part with set up the second supporting part at first supporting part both ends, the second supporting part sets up with the axis of discharging fume the pipe is perpendicular.
The supporting piece can be formed by processing channel steel, and the material taking and processing are convenient and quick.
In order to facilitate the assembly of the tool, the supporting plate and the support which are positioned on the same side of the support are connected through a connecting piece, the connecting piece adopts a connecting plate, the supporting plate and the support which are positioned on the same side of the support are connected through a connecting plate 13, and the supporting plate and the support which are positioned on the same side of the support are connected into a whole through the connecting plate, so that the supporting plate and the support which are positioned on the same side of the support can be simultaneously installed, and the assembly time of the tool is saved. In this embodiment, the connecting plate, the bottom plate and the bracket bottom plate are made into an integrated structure.
In order to enable accurate positioning of the relative position between the support and the bracket, the tool further comprises a machine type positioning plate 14.
The model locating plate is an L-shaped plate and comprises a first locating portion and a second locating portion which are perpendicular to each other, a plurality of locating pin holes are formed in the two ends of the L-shaped plate, the locating plate 15 is arranged on the bottom plate of the support and the support bottom plate of the support in order to achieve accurate locating of the support on one side of the support and the support, the locating plate of the support is arranged at one end of the end face of the long edge of the bottom plate, and the end face of the locating plate is flush with the end face of the short edge of the support. The positioning plate of the bracket is arranged at the end part of the bracket close to the support, and the outer side surface of the positioning plate is flush with the end surface of the long edge of the bracket bottom plate of the bracket.
And positioning pin holes matched with the positioning pin holes in the machine type positioning plates are formed in the positioning plates of the support and the bracket. A positioning pin 16 can be inserted between the positioning plate and the machine type positioning plate.
In this embodiment, the support is fixedly connected to the base, the machine type positioning plate is placed, the positioning pin shaft is inserted between the support top plate and the machine type positioning plate, the support is placed on the base, the positioning pin shaft is inserted into the machine type positioning plate and the positioning plate of the support, the positioning of the relative position of the support and the support on one side of the support is completed, and the support is fixedly connected to the base through the bolt.
And fixing the other bracket and the base according to the distance between the two superchargers on the actual assembly production line.
A series of positioning plates with different specifications are manufactured according to actual use requirements, and the positioning requirements of different machine types during welding can be met.
Example 2
The embodiment discloses a method for welding a smoke exhaust pipe, a scavenging box flange and a supercharger flange by adopting the tool in the embodiment 1, which comprises the following steps:
and assembling the tool in advance according to requirements. Firstly, fixing a support on a base through a bolt, then installing a machine type positioning plate, inserting a positioning pin shaft between the support and the machine type positioning plate to realize the connection of the support and the machine type positioning plate, then installing a support on one side of the support, inserting a positioning pin shaft between the machine type positioning plate and the positioning plate of the support to complete the positioning of the support and the support on one side of the support, and fixedly connecting the support with the base through the bolt after the support is positioned.
After the support on one side of the support is installed, the installation position of the support on the other side of the support is determined according to an actual assembly production line, and then the support on the other side of the support is fixedly connected with the base through bolts.
The method comprises the steps of machining a smoke exhaust pipe 17 in advance, wherein the smoke exhaust pipe is formed by welding a plurality of pipe sections through circumferential weld joints, welding a plug at the end part of the smoke exhaust pipe, welding a plurality of lifting lugs 18 at the top end of the smoke exhaust pipe for lifting the smoke exhaust pipe, machining an air port 19 on the smoke exhaust pipe according to the position of a supercharger, machining a scavenging box flange and a smoke exhaust pipe base, welding and fixing the smoke exhaust pipe base 23 and the scavenging box flange 24, machining a conical connecting pipeline, machining the supercharger flange, and machining the smoke exhaust pipe and accessories thereof by adopting the conventional method, wherein the specific steps are not described in detail herein.
And after the preliminary preparation work is finished, marking the pre-processed smoke exhaust pipe.
As shown in fig. 2, in the present embodiment, the scribe line includes a first center line 20 and a second center line 21.
The first center line is arranged along the straight line where the plurality of lifting lugs are located, after the first center line is scribed, scribing of a second center line is carried out, a first plane where the first center line and the smoke exhaust pipe axis are located is perpendicular to a second plane where the second center line and the smoke exhaust pipe axis are located, and the supporting blocks 22 are arranged on the second center line in a fixed position.
As shown in fig. 3, after the scribing is completed, two support blocks are welded on two sides of the smoke exhaust pipe along the second central line, and the support blocks are matched with the U-shaped plate in the tool in position, so that the support blocks can fall on the U-shaped plate after the smoke exhaust pipe is hoisted.
The width of the supporting block is smaller than the distance between the two second supporting parts in the U-shaped plate, so that the smoke exhaust pipe can be finely adjusted after being placed into the supporting mechanism.
As shown in fig. 4, pass through retaining member and the locating flange fixed connection on the support with the scavenging case flange, the retaining member adopt bolt and nut can, as shown in fig. 5, adopt the equipment handling of lifting and exhaust the pipe, during the U template is put into to the supporting shoe that will exhaust pipe periphery welded, utilize U template and supporting shoe to support the pipe of discharging fume, as shown in fig. 6, will treat welded booster flange 25 and put into the heavy groove of support to through retaining member and support fixed connection, the retaining member adopt bolt and nut can.
As shown in fig. 7, the base of the smoke exhaust pipe is welded to the smoke exhaust pipe, the connecting pipe 26 is placed between the gas port of the smoke exhaust pipe and the flange of the supercharger, the two ends of the connecting pipe are respectively welded to the smoke exhaust pipe and the flange of the supercharger, the connecting pipe is a conical pipe, the end with the larger area is welded to the smoke exhaust pipe, and the end with the smaller area is welded to the flange of the supercharger.
And after the welding of the smoke exhaust pipe base and the booster flange is finished, taking down the bolt and the nut between the booster flange and the support, and taking down the bolt and the nut between the scavenging box flange and the positioning flange.
At this moment, can carry the pipe of discharging fume to the assembly shop, will discharge fume the pipe and assemble with booster and scavenging case, because the accurate simulation of support and support sweeps on the assembly production line case and booster interface of admitting air, consequently the pipe of discharging fume can be smooth on the assembly production line assemble with scavenging case and booster.
In the practical application of this embodiment, adopt the frock of this embodiment to sweep gas tank flange and booster flange to W6X82 machine exhaust pipe welding, through confirming, sweep the mounting dimension complex requirement of gas tank flange and booster flange, the effectual problem of having solved booster flange assembly welding difficulty has not only avoided going the trouble of assembly shop scene join in marriage welding, has improved production efficiency moreover greatly.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (6)
1. A method for welding a smoke exhaust pipe, a scavenging box flange and a supercharger flange is characterized by comprising the following steps:
fixedly connecting a pre-processed smoke exhaust pipe base with a positioning flange through a scavenging box flange and a fastening piece at the bottom of the smoke exhaust pipe base;
hoisting the smoke exhaust pipe to the supporting mechanism, and supporting the smoke exhaust pipe by using the supporting mechanism;
placing a supercharger flange to be welded into the positioning groove, and fixedly connecting the supercharger flange with the bracket through the fixing hole and the fastener;
welding and fixing a smoke exhaust pipe and a smoke exhaust pipe base, placing a connecting pipe between a supercharger flange to be welded and a gas port of the smoke exhaust pipe, and welding and fixing two ends of the connecting pipe with the smoke exhaust pipe and the supercharger flange respectively;
taking down the fastening piece, and taking down the smoke exhaust pipe welded with the scavenging box flange and the supercharger flange from the tool;
a plurality of supporting blocks are fixed on the peripheral surface of the smoke exhaust pipe, and the supporting mechanism supports the smoke exhaust pipe through the supporting blocks;
marking on the smoke exhaust pipe in advance, and determining the fixed position of the supporting block on the smoke exhaust pipe according to the marking;
when the line is drawn on the smoke exhaust pipe, drawing a first central line and a second central line, wherein the first central line passes through a lifting lug at the top of the smoke exhaust pipe, a first plane where the first central line and the axis of the smoke exhaust pipe are located is mutually vertical to a second plane where the second central line and the axis of the smoke exhaust pipe are located, and the supporting block is fixedly arranged on the second central line;
the welding tool for the exhaust pipe, the scavenging box flange and the supercharger flange, which is prepared by the welding method, comprises the following steps:
a support: the device is used for simulating the scavenging box, and a positioning flange used for simulating a flange at the interface of the scavenging box is arranged at the top of the support;
a support: the positioning groove is used for simulating a supercharger interface and is provided with a positioning groove matched with a supercharger flange, and the positioning groove is provided with a fixing hole used for simulating a supercharger interface flange connecting hole;
a support mechanism: the support is arranged on two sides of the support and used for supporting the smoke exhaust pipe;
the support and the support device are configured to be that after the support mechanism supports the smoke exhaust pipe, the support position is matched with the position of a scavenging box interface of the smoke exhaust pipe, and the support position is matched with the position of an air port of the smoke exhaust pipe.
2. The welding method of the flange of the smoke exhaust pipe, the flange of the scavenging air box and the flange of the supercharger prepared by the welding method according to claim 1, wherein the supporting mechanism comprises supporting plates arranged on two sides of a support, arc-shaped grooves are formed in the tops of the supporting plates, and supporting pieces are arranged at two ends of the tops of the supporting plates.
3. The welding method of the flange of the smoke exhaust pipe, the flange of the scavenging air box and the flange of the supercharger according to claim 2, wherein the welding tool of the flange of the smoke exhaust pipe, the flange of the scavenging air box and the flange of the supercharger prepared by the welding method is provided, and the supporting piece is a U-shaped plate.
4. The welding method of the exhaust pipe, the scavenging box flange and the supercharger flange according to claim 3, wherein the welding tool is used for welding the exhaust pipe, the scavenging box flange and the supercharger flange, brackets are arranged on two sides of the support, and the bracket and the support mechanism which are positioned on the same side of the support are connected through a connecting piece.
5. The welding method of the exhaust pipe, the scavenging box flange and the supercharger flange according to claim 4, wherein the welding tool is prepared by the welding method, a machine type positioning plate is arranged between a support on one side of a support and the support, the support and the support are positioned by the machine type positioning plate, and the relative position of the support on the other side of the support and the support can be adjusted, locked and fixed.
6. The welding method of the flange of the smoke exhaust pipe, the flange of the scavenging air box and the flange of the supercharger, according to claim 5, wherein the welding tool of the flange of the smoke exhaust pipe, the flange of the scavenging air box and the flange of the supercharger, which is prepared by the welding method, is characterized in that the support, the supporting mechanism and the bracket are all arranged on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558348.2A CN113441900B (en) | 2021-05-21 | 2021-05-21 | Tool and method for welding exhaust pipe, scavenging box flange and supercharger flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558348.2A CN113441900B (en) | 2021-05-21 | 2021-05-21 | Tool and method for welding exhaust pipe, scavenging box flange and supercharger flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113441900A CN113441900A (en) | 2021-09-28 |
| CN113441900B true CN113441900B (en) | 2023-03-24 |
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| CN202110558348.2A Active CN113441900B (en) | 2021-05-21 | 2021-05-21 | Tool and method for welding exhaust pipe, scavenging box flange and supercharger flange |
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| CN114770009B (en) * | 2022-05-24 | 2024-07-16 | 青岛新力通工业有限责任公司 | Smoke cavity assembly fixture |
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| JP4862165B2 (en) * | 2010-01-19 | 2012-01-25 | 株式会社プラスワンテクノ | Pipe assembly equipment |
| CN201881090U (en) * | 2010-10-27 | 2011-06-29 | 沪东重机有限公司 | Device for welding and locating exhaust manifold outlet flange on marine diesel engine |
| JP2013018047A (en) * | 2011-07-14 | 2013-01-31 | Mitsubishi Heavy Ind Ltd | Positioning device for welding, welding equipment and welding method |
| CN208729661U (en) * | 2018-09-11 | 2019-04-12 | 大连船用柴油机有限公司 | Marine diesel scavenging air box diffuser pipe bedding-in special tooling |
| CN208483451U (en) * | 2018-11-02 | 2019-02-12 | 无锡市五星弹性元件厂 | The erection welding tooling of cooler for recycled exhaust gas escape pipe |
| CN209407773U (en) * | 2018-12-13 | 2019-09-20 | 亚达管道***股份有限公司 | The flange weld tooling of double-wall pipe |
| CN210549143U (en) * | 2019-07-05 | 2020-05-19 | 天津市丽川电力装备有限公司 | Manifold flange welding installation device |
| CN112372216A (en) * | 2020-11-27 | 2021-02-19 | 中船动力研究院有限公司 | Welding auxiliary device |
| CN112692482B (en) * | 2020-11-29 | 2022-12-27 | 中船海洋动力部件有限公司 | Positioning and mounting method for air branch pipe of scavenging header supercharger |
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Address after: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee after: China Shipbuilding Industry Corporation Diesel ENGINE Co.,Ltd. Address before: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee before: CHINA SHIPBUILDING INDUSTRY CORPORATION DIESEL ENGINE Co.,Ltd. |