CN110936072A - Modularized gas protection tool suitable for manual linear welding of titanium rectangular pipe - Google Patents
Modularized gas protection tool suitable for manual linear welding of titanium rectangular pipe Download PDFInfo
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Abstract
The invention relates to a modular gas protection tool suitable for manual linear welding of a titanium rectangular pipe, and belongs to the technical field of welding. The protection tool is composed of more than one module tool, and the structure composition and the working mode of each module tool are consistent; each module tool comprises a shell, a honeycomb core, an airflow baffle, a ball, a bearing wheel, a gas conveying pipe, a pipeline and a positioning device; the module tools are connected in a combined manner through the positioning device; the air inlet pipes of the combined connection rear module tools are communicated through pipelines, so that protective gas can circulate among the module tools. The protective tool is used for protecting the welding line and the periphery of the welding line during welding by inert gas, so that the titanium is effectively prevented from chemically reacting with elements in the air at high temperature, and the protective effect is obvious; according to the requirement of welding speed, a module tool is independently used as a protection tool, or if more than two module tools are assembled into a whole, the protection tool is used, and the length of a protection area is increased.
Description
Technical Field
The invention relates to a modular gas protection tool suitable for manual linear welding of a titanium rectangular pipe, and belongs to the technical field of welding.
Background
Titanium and titanium alloy have higher strength, good plasticity and toughness, sufficient corrosion resistance and high-temperature strength, most prominently high specific strength, and are excellent light structural materials. At present, the titanium-titanium alloy is widely used in naval equipment, and for example, certain naval equipment is formed by welding titanium-titanium (TA 3) rectangular pipes. However, titanium is very reactive in chemical properties and is very likely to react with elements such as hydrogen, oxygen and nitrogen in the air at a high temperature of more than 300 ℃, so that the mechanical properties of the welding seam and materials around the welding seam are reduced, and the design requirements cannot be met. Therefore, the weld and the heat affected zone having a temperature exceeding 300 ℃ are protected during welding.
In the existing product welding production, rectangular titanium pipes with different wall thicknesses are subjected to right-angle welding according to design requirements, a single continuous welding line can be as long as 3.5m, so that the welding line needs to be subjected to multi-layer welding, and due to process characteristics, different welding speeds of different welding layers are different; however, the gas protection tool in the prior art has the following defects: firstly, the welding seam and the heat affected zone of the right-angle area of the titanium rectangular tube cannot be effectively protected; and secondly, the length of the protection area cannot be adjusted according to the requirement of welding speed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a modular gas protection tool suitable for manual linear welding of a titanium rectangular pipe, wherein the protection tool can effectively protect a welding seam and a region with a heat affected temperature of more than 300 ℃ in a right-angle region of the titanium rectangular pipe, and one modular tool can be independently used for protecting the tool according to the requirement of welding speed, or if more than two modular tools are assembled into a whole to be used for the protection tool, the length of the protection region can be increased.
In order to achieve the purpose of the invention, the following technical scheme is provided.
The utility model provides a modularization gas protection frock suitable for manual sharp welding of titanium rectangular pipe, the protection frock comprises more than one module frock, and every module frock structure is constituteed and the working method is unanimous. Each module tool comprises a shell, a honeycomb core, an airflow baffle, a ball, a bearing wheel, a gas conveying pipe, a pipeline and a positioning device.
The cross section of the shell is hexagonal, the shell is provided with eight faces, seven faces of the shell are sealed to form a cavity, the cavity is respectively a top cover, a front end face, a rear end face, an upper left side face, a lower left side face, an upper right side face and a lower right side face, the bottom face is a bottom frame, and a honeycomb core is fixedly installed on the bottom frame to serve as an air outlet. The top cover is a rectangular flat plate, the front end surface of the top cover is vertically connected with the front end of the top cover, and the rear end surface of the top cover is vertically connected with the rear end of the top cover; the left upper side surface and the left lower side surface are connected in an angle mode to form a left side surface, and the right upper side surface and the right lower side surface are connected in an angle mode to form a right side surface; the top end of the left side surface is connected with the left side of the top cover in an angled manner, the bottom end of the left side surface is connected with the left side of the bottom frame in an angled manner, the front end of the left side surface is vertically connected with the front end surface, and the rear end of the left side surface is vertically connected with the rear end surface; the right flank top is connected with top cap right angulation, and right flank bottom is connected with underframe right angulation, and right flank front end is connected with preceding terminal surface is perpendicular, and right flank rear end is connected with the rear end face is perpendicular.
And the edges of the adjacent surfaces of the module tool shell and the welding part are respectively fixed with an airflow baffle plate, so that the module tool shell plays a role of blocking protective gas airflow. Preferably, the airflow baffle is a copper foil; more preferably, the copper foil is 0.2mm in thickness and is folded into a U shape, and the arc-shaped surface exceeds the edge of the shell by 2-2.5 mm.
The downside of a left side and the downside of the right side are equipped with a plurality of balls respectively, and the distance below preferred left side below and the upside of the right side is 2mm, the height of ball protrusion place face is 2mm, makes the interval of casing and welding piece be 2 mm.
The gas delivery pipe consists of a gas inlet pipe and a gas injection pipe; the gas ejector pipe is positioned in the cavity of the shell and close to the inner side of the top cover, and is provided with a plurality of spray holes for spraying protective gas; one end of the air inlet pipe is positioned in the cavity and is communicated with the air injection pipe, and the air inlet at the other end penetrates through the top cover and extends out of the cavity to be communicated with the protective gas; the gas delivery pipe is fixedly connected with the top cover through a gas inlet pipe; between the module frock after the built-up connection, the intake pipe passes through the pipe connection, can make protective gas circulate between the module frock of built-up connection.
Preferably, the gas lance is annular; preferably, the distance between the gas ejector pipe and the top cover is 5mm, the distance between the gas ejector pipe and the left lower side surface and the distance between the gas ejector pipe and the right lower side surface are 4mm, and the distance between the gas ejector pipe and the front end surface and the distance between the gas ejector pipe and the rear end surface are 10 mm; preferably, the gas ejector pipe is respectively provided with spray holes with the diameter of 1mm and the diameter of 0.5mm, protective gas enters the gas ejector pipe through the gas inlet pipe, spiral gas flow is generated in the cavity of the shell, the protective gas is filled in the protective area and then is sprayed out from the gas outlet of the honeycomb core, the direction is forward, and the protective gas can directly protect a welding seam and can also protect a heat affected area covered by the tool and the welding part due to the gas flow baffle.
More preferably, the annular gas nozzle is divided into four parts of areas I, II, III and IV for designing spray holes, wherein the parts I and IV are respectively a U-shaped area formed by the short side end of the annular gas nozzle and the long side of the part connected with the short side end; the parts II and III are two parts which are equally divided along the long edge in the middle area of the parts I and IV; wherein, the diameter of the spray holes of the first part area is 1mm, the spray holes are uniformly distributed, and the opening direction of the spray holes faces the honeycomb core; the diameter of the spray holes of the second part area is 1mm, the opening direction of one row of spray holes faces the ring, the opening direction of the other row of spray holes and the spray holes facing the inner ring form an included angle of 145 degrees, the spray holes are distributed in a crossed mode, and the opening direction is downward; the diameter of the spray holes of the third partial area is 0.5mm, the opening direction of one row of spray holes faces to the ring, the opening direction of the other row of spray holes and the angle between the spray holes facing to the inner ring are 145 degrees, and the opening direction is downward; the diameter of the spray hole of the IV part area is 0.5mm, and the opening direction faces the honeycomb core.
The optimized air inlet pipe comprises an upper air inlet pipe and a lower air inlet pipe, the upper air inlet pipe is communicated with the front part of the air ejector pipe, the lower air inlet pipe is communicated with the rear part of the air ejector pipe, the upper air inlet pipe and the lower air inlet pipe are communicated and combined outside the shell through a pipeline, a cross air inlet valve is arranged at the combining end, an upper side valve and a rear side valve are arranged on the cross air inlet valve, and an air inlet of the air inlet pipe is arranged; both can freely control the protective gas switch alone, can be again when two above module frock uses in combination, the rear side valve on two adjacent module frock passes through the pipe connection, can make two adjacent module frock sharing an air inlet.
Preferably the honeycomb core is a durable aluminum honeycomb core; preferably, the short side of the durable aluminum honeycomb core is 33mm, and the length of the shell is 150 mm-160 mm; the core material specification adopted by the durable aluminum honeycomb core is preferably as follows: the thickness of the aluminum foil is that the side length of the core grid is 0.1:3, the included angle between the aluminum foil and the bottom frame in the front-back direction is 10 degrees, the direction of the through hole is deviated from the front direction, and the integral thickness is 11-12 mm.
The rear end face of each module tool is provided with a positioning device for combined connection between the module tools, the positioning devices can be used for connecting and positioning the positioning holes and the positioning pins, and in order to further fix the module tools, the buckles which are mutually matched and connected are preferably arranged at the positions of the adjacent top covers of the two adjacent module tools to fix the module tools.
The protective gas is inert gas.
The working mode of the modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe is as follows:
the rectangular titanium pipes with different wall thicknesses are subjected to right-angle welding according to design requirements, a single continuous welding line is as long as 3.5m, the welding line is subjected to multi-layer welding, during welding, the protection tool is directly clamped to a working area, the distance between a bottom honeycomb core air outlet and the welding line is proper, and the protection effect is met; the protective gas enters the gas injection pipe through the gas inlet pipe, generates spiral gas flow in the cavity of the shell, fills the protective area, and then uniformly flows out of the gas outlet of the honeycomb core, so that the protective gas can directly protect a welding seam and can protect the heat affected area covered by the tool and the welding part.
Advantageous effects
1. The invention provides a modular gas protection tool suitable for manual linear welding of a titanium rectangular pipe, which is convenient to use and strong in practicability in the welding production of the rectangular pipe made of a titanium material, protects a welding seam and the periphery with inert gas, and can effectively prevent titanium from chemically reacting with elements in the air at high temperature; the welded seam becomes silvery white after being welded, the heat affected zone around the welded seam is natural color, and the protection effect is obvious;
2. the invention provides a modular gas protection tool suitable for manual linear welding of a titanium rectangular pipe, wherein one module tool can be independently used for protecting the tool according to the welding speed requirement, or more than two module tools are assembled into a whole to be used for protecting the tool, so that the length of a protection area is increased.
Drawings
Fig. 1 is a schematic structural diagram of a modular gas protection tool suitable for manual linear welding of a titanium rectangular tube in embodiment 1.
Fig. 2 is a schematic view of a modular gas-shielded tool suitable for manual linear welding of a titanium rectangular tube in embodiment 1, wherein the modular gas-shielded tool is used as a module tool in operation.
Fig. 3 is a schematic view of a modular gas-shielded tool suitable for manual linear welding of a titanium rectangular pipe in embodiment 1, wherein two modular tools are connected together in a combined manner.
Fig. 4 shows four divided areas of the gas nozzle in the modular gas shielding tool suitable for manual linear welding of the titanium rectangular tube in embodiment 1.
Wherein, 1-top cover, 2-front end face, 3-rear end face, 4-upper left side face, 5-lower left side face, 6-upper right side face, 7-lower right side face, 8-honeycomb core, 9-airflow baffle, 10-ball, 11-bearing wheel, 12-air inlet pipe, 13-air injection pipe, 14-pipeline, 15-upper side valve, 16-rear side valve, 17-positioning device, 18-buckle
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Example 1
The utility model provides a modularization gas protection frock suitable for manual sharp welding of titanium rectangular pipe, the protection frock comprises two module frock, and every module frock structure is constituteed and the working method is unanimous. Each module tooling comprises a shell, a honeycomb core 8, an airflow baffle 9, a ball 10, a bearing wheel 11, an air delivery pipe, a pipeline 14 and a positioning device 17, and is shown in figures 1-3.
The cross section of the shell is hexagonal, the shell is provided with eight faces, seven faces of the shell are sealed to form a cavity, the cavity is respectively a top cover 1, a front end face 2, a rear end face 3, an upper left side face 4, a lower left side face 5, an upper right side face 6 and a lower right side face 7, the bottom face is a bottom frame, and a honeycomb core 8 is fixedly installed on the bottom frame to serve as an air outlet. The top cover 1 is a rectangular flat plate, the front end face 2 is vertically connected with the front end of the top cover 1, and the rear end face 3 is vertically connected with the rear end of the top cover 1; the left upper side 4 and the left lower side 5 are connected in an angle manner to form a left side, and the right upper side 6 and the right lower side 7 are connected in an angle manner to form a right side; the top end of the left side surface is connected with the left side of the top cover 1 at an angle, the bottom end of the left side surface is connected with the left side of the bottom frame at an angle, the front end of the left side surface is vertically connected with the front end surface 2, and the rear end of the left side surface is vertically connected with the rear end surface 3; the right flank top is connected with top cap 1 right angulation, and right flank bottom is connected with underframe right angulation, and right flank front end is connected with preceding terminal surface 2 is perpendicular, and right flank rear end is connected with rear end face 3 is perpendicular.
And airflow baffles 9 are fixed on the edges of the adjacent surfaces of the module tooling shell and the welding part, and play a role in blocking protective gas flow. The airflow baffle 9 is made of copper foil, the thickness of the airflow baffle is 0.2mm, the airflow baffle is folded into a U shape, and the arc-shaped surface of the airflow baffle exceeds the edge of the shell by 2-2.5 mm.
A row of steel balls are inlaid on the left lower side surface 5 and the right lower side surface 7 respectively to serve as the balls 10, so that moving and forming of a protective interlayer are facilitated during welding.
And 2 bearing wheels 11 are respectively arranged on the upper left side surface 4 and the upper right side surface 6, so that the welding machine is beneficial to moving during welding.
The distance between the lower part of the left upper side surface 4 and the lower part of the right upper side surface 6 of the bearing wheel 11 is 2mm, the height of the surface where the ball 10 protrudes is 2mm, and the distance between the shell and the welding part is 2 mm.
The gas delivery pipe is composed of a gas inlet pipe 12 and a gas injection pipe 13; the gas injection pipe 13 is positioned in the cavity of the shell and close to the inner side of the top cover 1, and a plurality of spray holes are formed in the gas injection pipe 13 and used for spraying protective gas; one end of the air inlet pipe 12 is positioned in the cavity and is communicated with the air injection pipe 13, and the air inlet at the other end passes through the top cover 1 and extends out of the cavity to be communicated with the protective gas; the gas delivery pipe is fixedly connected with the top cover 1 through a gas inlet pipe 12.
The gas injection pipe 13 is annular, the distance between the gas injection pipe 13 and the top cover 1 is 5mm, the distance between the gas injection pipe and the left lower side surface 5 and the distance between the gas injection pipe and the right lower side surface 7 are both 4mm, and the distance between the gas injection pipe and the front end surface 2 and the distance between the gas injection pipe and the rear end surface 3 are both 10 mm; the gas injection pipe 13 is respectively provided with a spray hole with the diameter of 1mm and a spray hole with the diameter of 0.5mm, protective gas enters the gas injection pipe 13 through the gas inlet pipe 12, spiral gas flow is generated in the cavity of the shell, the protective gas is filled in the protective area and is sprayed out from the gas outlet of the honeycomb core 8, the direction is forward, and due to the gas flow baffle plate 9, the protective gas can directly protect a welding line and can also protect a heat affected area of a part covered by a tool and a welding part.
The annular gas nozzle 13 is divided into four parts of areas I, II, III and IV for designing spray holes, wherein the parts I and IV are respectively a U-shaped area formed by the short side end of the annular part and the long side of the part connected with the short side end; the parts II and III are two parts which are equally divided along the long edge in the middle area of the parts I and IV; wherein, the diameter of the spray holes of the first part area is 1mm, the spray holes are uniformly distributed, and the opening direction of the spray holes faces the honeycomb core 8; the diameter of the spray holes of the second part area is 1mm, the opening direction of one row of spray holes faces the ring, the opening direction of the other row of spray holes and the spray holes facing the inner ring form an included angle of 145 degrees, the spray holes are distributed in a crossed mode, and the opening direction is downward; the diameter of the spray holes of the third partial area is 0.5mm, the opening direction of one row of spray holes faces to the ring, the opening direction of the other row of spray holes and the angle between the spray holes facing to the inner ring are 145 degrees, and the opening direction is downward; the diameter of the nozzle hole of the fourth partial area is 0.5mm, and the opening direction faces the honeycomb core 8, as shown in fig. 4.
The air inlet pipe 12 comprises an upper air inlet pipe and a lower air inlet pipe, the upper air inlet pipe is communicated with the front part of the air injection pipe 13, the lower air inlet pipe is communicated with the rear part of the air injection pipe 13, the upper air inlet pipe and the lower air inlet pipe are communicated and combined outside the shell through a pipeline 14, a cross air inlet valve is arranged at the combining end, an upper side valve 15 and a rear side valve 16 are arranged on the cross air inlet valve, and an air inlet of the air inlet pipe 12 is arranged above; not only can the protective gas switch be independently and freely controlled, but also when the two module tools are combined for use, the rear side valves 16 on the two module tools are connected through the pipeline 14, and the two module tools can share one air inlet.
The honeycomb core 8 is a durable aluminum honeycomb core, the short side is 33mm, and the length of the shell is 150 mm-160 mm; the specification of the core material is as follows: the thickness of the aluminum foil is that the side length of the core grid is 0.1:3, the included angle between the aluminum foil and the bottom frame in the front-back direction is 10 degrees, the direction of the through hole is deviated from the front direction, and the integral thickness is 11-12 mm.
The rear end face 3 of the module tooling is provided with a positioning device 17 for the combined connection between the module tooling, the positioning device 17 is used for connecting and positioning a positioning hole and a positioning pin, and in order to further fix the module tooling, the adjacent top covers 1 of the two module tooling are provided with buckles 18 which are mutually matched and connected for fixation.
The protective gas is argon.
The working mode of the modularized gas protection tool suitable for manual linear welding of the titanium rectangular pipe is as follows:
the rectangular titanium pipes with different wall thicknesses are subjected to right-angle welding according to design requirements, a single continuous welding line is as long as 3.5m, the welding line is subjected to multi-layer welding, during welding, the protection tool is directly clamped to a working area, and the distance between an air outlet of the bottom honeycomb core 8 and the welding line is proper, so that the protection effect is met; the protective gas enters the gas injection pipe 13 through the gas inlet pipe 12, generates spiral gas flow in the cavity of the shell, fills the protective area, and uniformly flows out from the gas outlet of the honeycomb core 8, so that the protective gas can directly protect a welding seam and can protect a heat affected area covered by the tool and the welding part.
In the welding production of the rectangular pipe made of the titanium material, the tool is convenient to use and high in practicability, and protects a welding seam and the periphery with inert gas, so that the titanium is effectively prevented from chemically reacting with elements in the air at high temperature; the welded seam becomes silvery white after being welded, the heat affected zone around the welded seam is natural color, and the protection effect is obvious.
Claims (10)
1. The utility model provides a modularization gas protection frock suitable for manual sharp welding of titanium rectangular pipe which characterized in that: the protection tool is composed of more than one module tool, and the structure composition and the working mode of each module tool are consistent; each module tool comprises a shell, a honeycomb core (8), an airflow baffle (9), a ball (10), a bearing wheel (11), a gas conveying pipe, a pipeline (14) and a positioning device (17);
the cross section of the shell is hexagonal, the shell is provided with eight faces, seven faces are sealed to form a cavity, namely a top cover (1), a front end face (2), a rear end face (3), an upper left side face (4), a lower left side face (5), an upper right side face (6) and a lower right side face (7), the bottom face is a bottom frame, and a honeycomb core (8) is fixedly installed on the bottom face to serve as an air outlet;
the top cover (1) is a rectangular flat plate, the front end surface (2) is vertically connected with the front end of the top cover (1), and the rear end surface (3) is vertically connected with the rear end of the top cover (1); the left upper side (4) and the left lower side (5) are connected in an angle to form a left side, and the right upper side (6) and the right lower side (7) are connected in an angle to form a right side; the top end of the left side surface is connected with the left side of the top cover (1) at an angle, the bottom end of the left side surface is connected with the left side of the bottom frame at an angle, the front end of the left side surface is vertically connected with the front end surface (2), and the rear end of the left side surface is vertically connected with the rear end surface (3); the top end of the right side surface is connected with the right side of the top cover (1) at an angle, the bottom end of the right side surface is connected with the right side of the bottom frame at an angle, the front end of the right side surface is vertically connected with the front end surface (2), and the rear end of the right side surface is vertically connected with the rear end surface (3);
the edges of the adjacent surfaces of the module tooling shell and the welding part are both fixed with airflow baffles (9);
the left lower side surface (5) and the right lower side surface (7) are respectively provided with a plurality of balls (10);
bearing wheels (11) are arranged on the left upper side surface (4) and the right upper side surface (6);
the gas delivery pipe is composed of a gas inlet pipe (12) and a gas injection pipe (13); the gas injection pipe (13) is positioned in the cavity of the shell and close to the inner side of the top cover (1), and a plurality of spray holes are formed in the gas injection pipe (13); one end of the air inlet pipe (12) is positioned in the cavity and is communicated with the air injection pipe (13), and the air inlet at the other end penetrates through the top cover (1) and extends out of the cavity to be communicated with the protective gas; the gas delivery pipe is fixedly connected with the top cover (1) through a gas inlet pipe (12);
the rear end face (3) of the module tooling is provided with a positioning device (17) for combined connection between the module tooling; the air inlet pipes (12) of the combined and connected module tools are communicated through a pipeline (14), so that protective gas can circulate among the module tools;
the protective gas is inert gas.
2. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 1, is characterized in that: the airflow baffle (9) is made of copper foil which is folded into a U shape, and the arc-shaped surface exceeds the edge of the shell by 2-2.5 mm.
3. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 1, is characterized in that: a plurality of steel balls are respectively embedded on the left lower side surface (5) and the right lower side surface (7) to be used as rolling balls (10).
4. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 1, is characterized in that: the gas injection pipe (13) is annular; the gas injection pipe (13) is respectively provided with a jet hole with the diameter of 1mm and a jet hole with the diameter of 0.5 mm.
5. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 4, is characterized in that: the annular gas injection pipe (13) is divided into four parts, namely, I, II, III and IV, which are designed with spray holes, and the I and IV parts are respectively a U-shaped area formed by the short-side end of the annular part and the long side of the part connected with the short-side end; the parts II and III are two parts which are equally divided along the long edge in the middle area of the parts I and IV; the diameter of the spray holes of the first part area is 1mm, the spray holes are uniformly distributed, and the opening direction of the spray holes faces the honeycomb core (8); the diameter of the spray holes of the second part area is 1mm, the opening direction of one row of spray holes faces the ring, the opening direction of the other row of spray holes and the spray holes facing the inner ring form an included angle of 145 degrees, the spray holes are distributed in a crossed mode, and the opening direction is downward; the diameter of the spray holes of the third partial area is 0.5mm, the opening direction of one row of spray holes faces to the ring, the opening direction of the other row of spray holes and the angle between the spray holes facing to the inner ring are 145 degrees, and the opening direction is downward; the diameter of the jet hole of the IV part area is 0.5mm, and the opening direction faces the honeycomb core (8).
6. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 1, is characterized in that: the air inlet pipe (12) comprises an upper air inlet pipe and a lower air inlet pipe, the upper air inlet pipe is communicated with the front part of the air injection pipe (13), the lower air inlet pipe is communicated with the rear part of the air injection pipe (13), the upper air inlet pipe and the lower air inlet pipe are communicated and combined outside the shell through a pipeline (14), a cross air inlet valve is arranged at the combining end, an upper side valve (15) and a rear side valve (16) are arranged on the cross air inlet valve, and an air inlet of the air inlet pipe (12) is arranged above the upper side; when more than two module tools are used in a combined mode, rear side valves (16) on two adjacent module tools are connected through a pipeline (14), and the two adjacent module tools share one air inlet.
7. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 1, is characterized in that: the honeycomb core (8) is a durable aluminum honeycomb core.
8. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 7, is characterized in that: the short side of the durable aluminum honeycomb core is 33mm, and the length of the shell is 150 mm-160 mm; the specification of the core material is as follows: the thickness of the aluminum foil is that the side length of the core grid is 0.1:3, the included angle between the aluminum foil and the bottom frame in the front-back direction is 10 degrees, the direction of the through hole is deviated from the front direction, and the integral thickness is 11-12 mm.
9. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 1, is characterized in that: the positioning device (17) is used for connecting and positioning the positioning hole and the positioning pin; buckles (18) which are mutually matched and connected are arranged at the positions of the adjacent top covers (1) of the two adjacent module tools for fixing.
10. The modular gas protection tool suitable for manual linear welding of the titanium rectangular pipe according to claim 1, is characterized in that: the airflow baffle (9) is made of copper foil which is folded into a U shape, and the arc-shaped surface exceeds the edge of the shell by 2-2.5 mm;
a plurality of steel balls are respectively embedded on the left lower side surface (5) and the right lower side surface (7) to be used as rolling balls (10);
the gas injection pipe (13) is annular; the spray holes are designed in four parts, namely I, II, III and IV, wherein the I part and the IV part are respectively a U-shaped area formed by an annular short-side end and a part of long sides connected with the annular short-side end; the parts II and III are two parts which are equally divided along the long edge in the middle area of the parts I and IV; the diameter of the spray holes of the first part area is 1mm, the spray holes are uniformly distributed, and the opening direction of the spray holes faces the honeycomb core (8); the diameter of the spray holes of the second part area is 1mm, the opening direction of one row of spray holes faces the ring, the opening direction of the other row of spray holes and the spray holes facing the inner ring form an included angle of 145 degrees, the spray holes are distributed in a crossed mode, and the opening direction is downward; the diameter of the spray holes of the third partial area is 0.5mm, the opening direction of one row of spray holes faces to the ring, the opening direction of the other row of spray holes and the angle between the spray holes facing to the inner ring are 145 degrees, and the opening direction is downward; the diameter of a spray hole of the IV part area is 0.5mm, and the opening direction faces the honeycomb core (8);
the air inlet pipe (12) comprises an upper air inlet pipe and a lower air inlet pipe, the upper air inlet pipe is communicated with the front part of the air injection pipe (13), the lower air inlet pipe is communicated with the rear part of the air injection pipe (13), the upper air inlet pipe and the lower air inlet pipe are communicated and combined outside the shell through a pipeline (14), a cross air inlet valve is arranged at the combining end, an upper side valve (15) and a rear side valve (16) are arranged on the cross air inlet valve, and an air inlet of the air inlet pipe (12) is arranged above the upper side valve; when more than two module tools are combined for use, the rear side valves (16) on two adjacent module tools are connected through a pipeline (14), and the two adjacent module tools share one air inlet;
the honeycomb core (8) is a durable aluminum honeycomb core; the short side is 33mm, and the length of the shell is 150 mm-160 mm; the specification of the core material is as follows: the thickness of the aluminum foil is that the side length of the core grid is 0.1:3, the included angle between the core grid and the front and back direction of the bottom frame is 10 degrees, the direction of the through hole is forward, and the integral thickness is 11 mm-12 mm;
the positioning device (17) is used for connecting and positioning the positioning hole and the positioning pin; buckles (18) which are mutually matched and connected are arranged at the positions of the adjacent top covers (1) of the two adjacent module tools for fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911270638.6A CN110936072A (en) | 2019-12-12 | 2019-12-12 | Modularized gas protection tool suitable for manual linear welding of titanium rectangular pipe |
Applications Claiming Priority (1)
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| KR101851228B1 (en) * | 2016-12-16 | 2018-06-11 | 신성식 | Gas pocket for welding pipes |
| CN108890088A (en) * | 2018-07-20 | 2018-11-27 | 江麓机电集团有限公司 | A kind of titanium alloy component vertical angle seam welding device |
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| JPS61172665U (en) * | 1985-04-15 | 1986-10-27 | ||
| CN101422853A (en) * | 2007-11-02 | 2009-05-06 | 中国船舶重工集团公司第七二五研究所 | Local air protection cage during fusion welding titanium alloy |
| CN102601531A (en) * | 2012-03-20 | 2012-07-25 | 江苏中科四象激光科技有限公司 | Laser welding fixture with back protection function |
| CN205363055U (en) * | 2016-01-20 | 2016-07-06 | 江苏昆仲机械有限公司 | Titanium material welded back of weld protection device |
| CN105499764A (en) * | 2016-02-25 | 2016-04-20 | 江苏科技大学 | Handheld tail protecting device for titanium material tungsten electrode argon arc welding |
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Application publication date: 20200331 |