CN117620379A - Secondary gas protection device - Google Patents
Secondary gas protection device Download PDFInfo
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- CN117620379A CN117620379A CN202311813230.5A CN202311813230A CN117620379A CN 117620379 A CN117620379 A CN 117620379A CN 202311813230 A CN202311813230 A CN 202311813230A CN 117620379 A CN117620379 A CN 117620379A
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- secondary gas
- gas protection
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- 238000007664 blowing Methods 0.000 claims abstract description 86
- 238000003466 welding Methods 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
The invention provides a secondary gas protection device, which belongs to the technical field of welding and comprises a gas blowing mechanism, wherein the gas blowing mechanism comprises a first part and a second part, and the gas blowing mechanism has a first working state and a second working state through the difference of the installation positions of a mounting structure and a first mounting groove and a second mounting groove scheme; when the blowing mechanism is in the second working state, the first part and the second part are in different horizontal planes, the whole blowing mechanism is inclined towards one side to cope with the condition of the T joint, and the blowing mechanism is used for switching between the two working states, so that the device can cope with the secondary gas protection devices in the three joint forms of the butt joint, the angle joint and the T joint.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a secondary gas protection device.
Background
The common welding method of the gas-shielded high-temperature welding area metal used in the arc welding field mainly comprises MAG/MIG welding and CO 2 Gas shielded welding, conventional TIG welding, and narrow gap hot wire pulse TIG welding.
The secondary gas shield is a concomitant technology and a unique technology of narrow gap/ultra-narrow gap MAG/MIG welding and narrow gap hot wire pulse TIG welding, and the secondary shield is not needed under all other gas shield welding conditions. The secondary gas protection is a layer of protection gas which is additionally added outside a welding groove with a narrow gap or an ultra-narrow gap, and is commonly called as secondary gas protection. The flow of the common secondary shielding gas is far greater than that of the primary shielding gas, and the protection range is also far greater than that of the primary shielding gas.
The dedicated hardware for delivering the secondary shielding gas is called a secondary gas shielding device. At present, no secondary gas protection device is available in the form of three connectors, namely a butt connector, an angle connector and a T connector.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the prior art cannot simultaneously cope with various conditions, thereby providing a secondary gas protection device.
The invention provides a secondary gas protection device, comprising:
the blowing mechanism is internally provided with a through hole which is suitable for a welding gun to pass through; the blowing mechanism is suitable for blowing shielding gas towards the periphery of the welding wire;
the blowing mechanism comprises a first part and a second part; the two sides of the first part are provided with a first mounting groove and a second mounting groove at intervals along the airflow flowing direction; mounting structures are arranged on two sides of the second part; the air blowing mechanism is provided with a first working state and a second working state, when the air blowing mechanism is in the first working state, the mounting structure is mounted in the first mounting groove, and at the moment, the first part and the bottom surface of the second part are in the same horizontal plane; when the air blowing mechanism is in the second working state, the mounting structure is mounted in the second mounting groove, and at the moment, the bottom surfaces of the first part and the second part are in different horizontal planes.
Preferably, the mounting structure comprises a mounting piece and a locking piece, one end of the mounting piece is fixedly connected with the second part, and the other end of the mounting piece is suitable for being mounted in the mounting groove; the locking piece is suitable for penetrating through the mounting piece, and the locking piece is suitable for moving towards the direction of the mounting groove and abutting against the mounting groove.
Preferably, the mounting piece is in threaded connection with the locking piece; the mounting piece is provided with a threaded hole; the outer surface of the locking piece is provided with threads suitable for being connected with the threaded hole.
Preferably, the blowing mechanism further comprises:
an airflow channel, which is provided with two airflow channels, wherein the two airflow channels respectively flow through the interiors of the first part and the second part; one end of the airflow channel is an air inlet, and the other end of the airflow channel is an air outlet;
preferably, the blowing mechanism further comprises:
the two water cooling flow channels respectively flow through the insides of the first part and the second part; the water cooling flow channel is internally provided with a heat exchange medium which is suitable for heat exchange with the blowing mechanism, and one end of the water cooling flow channel is provided with a water inlet, and the other end is provided with a water outlet.
As a preferable scheme, the blowing mechanism further comprises:
the uniform flow filter tube is arranged in the airflow channel; the uniform flow filter pipes are arranged corresponding to the airflow channels in number; the flow homogenizing filter tube homogenizes the flow rate of the shielding gas passing therethrough.
Preferably, the blowing mechanism further comprises:
the two uniform flow structures are detachably connected with the first part and the second part respectively; the uniform flow structure is arranged corresponding to the airflow channel;
preferably, the uniform flow structure comprises:
the uniform flow screen is positioned in the air blowing mechanism and is connected with the air flow channel; the shielding gas in the airflow channel flows through the uniform flow sieve; the uniform flow screen is disposed downstream of the uniform flow filter tube.
Preferably, the blowing mechanism further comprises:
the two airflow baffles are respectively arranged at the inner walls of the first part and the second part opposite to each other; the gas flow baffle is adapted to prevent leakage of shielding gas within the gas flow passage.
As a preferable scheme, an observation inclined plane is arranged on the outer wall of the air blowing mechanism; the observation inclined surface gradually reduces the horizontal sectional area of the blowing mechanism near the end of the welding wire.
The technical scheme of the invention has the following advantages:
1. the secondary gas protection device comprises a blowing mechanism, wherein the blowing mechanism comprises a first part and a second part, and a first mounting groove and a second mounting groove are formed in two sides of the first part along the flow direction of air flow; the two sides of the second part are provided with mounting structures, and the air blowing mechanism is provided with a first working state and a second working state through the difference of mounting positions of the mounting structures and the first mounting groove and the second mounting groove, when the air blowing mechanism is in the first working state, the bottom surfaces of the first part and the second part are positioned on the same horizontal plane, so that the welding condition of the butt joint connector and the angle joint connector can be met; when the blowing mechanism is in the second working state, the first part and the second part are in different horizontal planes, the whole blowing mechanism is inclined towards one side to cope with the condition of the T joint, and the blowing mechanism is used for switching between the two working states, so that the device can cope with the secondary gas protection devices in the three joint forms of the butt joint, the angle joint and the T joint.
2. The secondary gas protection device provided by the invention is also provided with the water-cooling flow channel, the water-cooling flow channel flows through the inside of the blowing mechanism, and the temperature of the blowing mechanism is reduced through the heat exchange medium in the water-cooling flow channel, so that the temperature of the protective gas is reduced, and the protective gas in a low-temperature state has better protective effect.
3. The secondary gas protection device provided by the invention is also provided with the uniform flow filter pipe, the uniform flow filter pipe is arranged in the airflow channel, and the uniform flow filter pipe enables the flow speed of the protection gas to be more uniform, so that the protection gas around the welding wire is more uniform, and the protection effect of the protection gas is improved.
4. The secondary gas protection device provided by the invention is further provided with the gas flow baffle, and the gas flow baffle covers the inner wall of the first part and the second part which are oppositely arranged, so that the gas tightness of the gas flow channel is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a secondary gas protection device according to the present invention.
Fig. 2 is a schematic structural diagram of a second portion of a secondary gas protection apparatus according to the present invention.
Fig. 3 is a schematic structural diagram of a first portion of a secondary gas protection apparatus according to the present invention.
Fig. 4 is a schematic diagram of a handling butt joint of an air blowing mechanism of a secondary air protection device according to the present invention.
Fig. 5 is a schematic view of a handling corner joint of a blowing mechanism of a secondary gas protection device according to the present invention.
Fig. 6 is a schematic diagram of a processing T-joint of an air blowing mechanism of a secondary air protection device according to the present invention.
Fig. 7 is a schematic structural diagram of a uniform flow filter tube of a secondary gas protection device according to the present invention.
Reference numerals illustrate:
1. an air blowing mechanism; 11. a first portion; 111. a first mounting groove; 112. a second mounting groove; 12. a second portion; 121. a mounting structure; 122. a mounting member; 123. a locking member; 13. an airflow channel; 14. a water-cooling runner; 15. a uniform flow filter tube; 151. an air inlet disc; 152. a filter screen; 153. a blind hole disc; 16. a uniform flow structure; 17. an air flow baffle; 18. and observing the inclined plane.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
As shown in fig. 1, the embodiment provides a secondary gas protection device, which comprises a blowing mechanism 1, wherein a through hole suitable for a welding gun to pass through is formed in the blowing mechanism 1, and the blowing mechanism 1 blows protection gas towards the periphery of a welding wire; wherein the blowing mechanism 1 comprises a first part 11 and a second part 12, as shown in fig. 3, both sides of the first part 11 are provided with a first mounting groove 111 and a second mounting groove 112 in the direction of the flow of the air stream. As shown in fig. 2, the second portion 12 is provided with mounting structures 121 on both sides; the third mounting groove may be provided as needed; the air blowing mechanism 1 comprises a first working state and a second working state, when the air blowing mechanism 1 is in the first working state, the mounting structure 121 is mounted in the first mounting groove 111, and at this time, the bottom surfaces of the first part 11 and the second part 12 are in the same horizontal plane. When the blowing mechanism 1 is in the second working state, the mounting structure 121 is mounted in the second mounting groove 112, and at this time, the bottom surfaces of the first part 11 and the second part 12 are in different horizontal planes;
as shown in fig. 4 and 5, when the air blowing mechanism 1 is in the first working state, the bottom surfaces of the first part 11 and the second part 12 are on the same horizontal plane, so that the welding condition of the butt joint and the corner joint can be met; as shown in fig. 6, when the blowing mechanism 1 is in the second working state, the first part 11 and the second part 12 are in different horizontal planes, the whole blowing mechanism 1 is inclined towards one side to cope with the situation of the T-joint, and the blowing mechanism 1 is switched between the two working states, so that the device can cope with the secondary gas protection devices in the form of three joints, namely a butt joint, an angle joint and a T-joint.
As shown in fig. 4 and 5, when the butt joint and the corner joint are required to be welded, a sufficient space is provided above the weld, and in this embodiment, the air blowing mechanism 1 is adjusted to the first working state, and the welding gun is extended into the weld to weld.
As shown in fig. 6, when the T-joint welding is required, because the general secondary gas protection device has a large volume, the secondary gas protection device interferes with the welding workpiece, so that the welding gun cannot extend into the welding seam to perform the welding, in this embodiment, the air blowing mechanism 1 is replaced by the second working state, the whole welding gun is inclined towards the side far away from the welding workpiece, and the welding gun can be extended into the welding seam under the condition that the protection gas is ensured to be provided on both sides of the welding gun.
The welding wire is fixed to the end of the welding gun, and the welding gun is suitable for providing welding basic conditions such as welding current for the welding wire.
The secondary gas protection under the conditions of narrow gap/ultra-narrow gap MAG/MIG welding and narrow gap hot wire pulse TIG welding is that a layer of protective gas is additionally added outside a welding groove of the narrow gap or the ultra-narrow gap, and is commonly called secondary gas protection. The flow of the common secondary shielding gas is far greater than that of the primary shielding gas, and the protection range is also far greater than that of the primary shielding gas. The dedicated hardware for delivering the secondary shielding gas is called a secondary gas shielding device. In this embodiment, the gas blown out by the blowing mechanism 1 is in a secondary protection range, the primary shielding gas is blown out by the welding gun body, and the protection range of the shielding gas blown out by the blowing mechanism 1 is larger.
The first portion 11 and the second portion 12 are substantially identical in shape.
Further, the mounting structure 121 includes a mounting member 122 and a locking member 123, wherein one end of the mounting member 122 is fixedly connected to the second portion 12, and the other end of the mounting member 122 is adapted to be mounted in the mounting groove. The locking member 123 is adapted to pass through the mounting member 122, and the locking member 123 is adapted to move toward the mounting groove and to abut against the mounting groove; the locking member 123 abuts against the mounting groove, so that stability and safety of the first portion 11 and the second portion 12 in use are achieved.
Specifically, the mounting member 122 is in threaded connection with the locking member 123, an internal threaded hole is formed in the mounting member 122, an internal thread is formed in the threaded hole, and a thread corresponding to the thread in the threaded hole is formed on the outer surface of the mounting member 122, in this embodiment, a screw may be selected for the mounting member 122 in order to reduce the cost; in order to increase the convenience of the operation, the end of the mount 122 may be provided as a knob that facilitates manual operation. It should be noted that, the mounting member 122 and the locking member 123 may be further connected by means of a clamping connection, a protrusion is disposed on an outer surface of the locking member 123, a clamping hole is formed in the mounting member 122, a groove adapted to be clamped with the protrusion is disposed in the clamping hole, and when the protrusion is clamped with the groove, the locking member 123 just abuts against the first mounting groove 111 or the second mounting groove 112, so as to achieve a locking function.
The blowing mechanism 1 was made of T2 pure copper, and the outer surface was subjected to an insulation treatment.
In this embodiment, the length of the bottom of the first portion 11 and the second portion 12 is 36mm, the width is 18mm, and the height is 58mm.
Further, the blowing mechanism 1 further comprises two airflow channels 13, wherein the two airflow channels 13 respectively flow through the interiors of the first part 11 and the second part 12; one end of the airflow channel 13 is an air inlet, and the other end is an air outlet; in the embodiment, the air inlet horizontally penetrates through the air blowing mechanism 1, and the air inlet is arranged at the left side and the right side of the air blowing mechanism; the air inlet is connected with air storage equipment, and the air storage equipment can be equipment such as an air storage tank. The air outlet is arranged at the bottom of the air blowing mechanism 1 and is suitable for blowing towards the welding wire.
In the present embodiment, the shape of the airflow path 13 in the blowing mechanism 1 is "7", and the airflow path 13 may be linear for cost saving.
Further, the air blowing mechanism 1 is also provided with two water-cooled runners 14, and the two water-cooled runners 14 flow through the interiors of the first portion 11 and the second portion 12, respectively. The water cooling flow channel 14 is internally provided with a heat exchange medium, the heat exchange medium is suitable for exchanging heat with the blowing mechanism 1, one end of the water cooling flow channel 14 is a water inlet, and the other end is a water outlet.
In this embodiment, the water inlet and the water outlet are disposed at the lower half part of the air blowing mechanism 1, the water cooling flow channel 14 is bent and disposed inside the body of the air blowing mechanism 1, and the water cooling flow channel 14 disposed in a bending manner can further increase the contact area between the water cooling flow channel 14 and the air blowing mechanism 1, so as to increase the heat exchange efficiency. The material of the blowing mechanism 1 is pure copper. Specifically, the part of the water cooling flow passage 14 located inside the air blowing mechanism 1 is inverted in shape of a Chinese character 'ji'. In this embodiment, the heat exchange medium is water, and other media with larger specific heat capacity may be selected. The water cooling flow channel 14 is also connected with a matched water pump and other devices, so that the heat exchange medium in the water cooling flow channel 14 is ensured to be in a flow channel state.
Further, there are also provided uniform flow filter tubes 15, the uniform flow filter tubes 15 being provided in the airflow passage 13, the number of uniform flow filter tubes 15 being provided corresponding to the number of the airflow passage 13, the uniform flow filter tubes 15 being provided in this embodiment in two and being provided in the first portion 11 and the second portion 12, respectively, the uniform flow filter tubes 15 making the flow rate of the shielding gas passing therethrough uniform. The uniform flow filter tube 15 is fixed by a fixing bolt.
Specifically, as shown in fig. 7, the uniform flow filter tube 15 includes an air inlet disk 151, a filter screen 152 and a blind hole disk 153 which are sequentially arranged in the flow direction of the air flow; the air inlet disc 151 is provided with a through hole suitable for entering protective gas, and the size of the air inlet disc 151 is just the same as the inner diameter of the airflow channel 13, so that the protective gas in the airflow channel 13 passes through the uniform flow filter tube 15. One end of the filter screen 152 is connected with the air inlet disk, a plurality of gaps suitable for passing protective gas are arranged on the filter screen 152, and the other end of the filter screen 152 is connected with the blind hole disk 153; the blind hole disc 153 is provided with a plurality of blind holes, and the blind hole disc 153 blocks the passage of shielding gas. The uniform flow filter tube 15 is disposed at the end of the horizontal portion of the airflow channel 13 near the vertical portion, when the shielding gas enters the filter screen 152 from the air inlet disc 151, the shielding gas can not pass through, and the shielding gas can only flow out of the filter screen 152 through the gaps between the filter screens 152, so that the flowing shielding gas just enters the vertical portion of the airflow channel 13.
Note that, in this embodiment, the filter screen 152 is formed by rolling a stainless steel screen; wherein, the stainless steel screen mesh is higher, the better the stainless steel screen mesh is, the better the uniform flow effect of the stainless steel screen mesh is.
Further, two flow homogenizing structures 16 are further provided, the two flow homogenizing structures 16 are detachably connected to the first portion 11 and the second portion 12, in this embodiment, slots suitable for inserting the flow homogenizing structures 16 are formed in the first portion 11 and the second portion 12, and the flow homogenizing structures 16 are detachably connected to the first portion 11 and the second portion 12 in a plugging manner. A uniform flow structure 16 is provided in each airflow passage 13, respectively. The flow homogenizing structure 16 comprises a flow homogenizing sieve, the flow homogenizing sieve is positioned in the blowing structure, the flow homogenizing sieve is connected with the airflow channel 13, the flow homogenizing sieve is vertically connected with the airflow channel 13, and the flow homogenizing sieve passes through the airflow channel 13, so that the protective gas in the airflow channel 13 passes through the flow homogenizing sieve, and the flow homogenizing sieve is arranged at the downstream of the flow homogenizing filter tube 15. It should be noted that the uniform flow screen is suitable for being inserted into the slot.
Specifically, the surface of the uniform flow sieve is provided with a plurality of sieve holes; the diameter of each sieve pore is 0.8mm-1.0mm, and the distance between every two adjacent sieve pores is 1.2mm-1.4mm. In this embodiment, the uniform flow screen is square, and the coverage area of the uniform flow screen may exceed the cross section of the airflow channel 13, or may be circular or elliptical. In this embodiment, the material of the uniform flow screen is pure copper.
Wherein the distance from the center of the flow-equalizing filter tube 15 in the first part 11 and the second part 12 to the upper end surface of the flow-equalizing screen is 12mm.
Further, the airflow channel 13 is also provided with a chamber, and the chamber is arranged between the uniform flow filter tube 15 and the uniform flow sieve; the chamber is adapted to uniformly flow the pressure of the chamber gas, buffer the shielding gas in the chamber after it enters the chamber, and uniformly homogenize the flow rate of the shielding gas out of the filter tube 15. The protective gas sprayed from the uniform flow filter tube 15 is used for further reducing the pressure and uniformity. The pressure chamber is in the form of a cavity in this embodiment.
Further, the blowing mechanism 1 further includes: the two air flow baffles 17 are arranged, and the two air flow baffles 17 are respectively arranged at the opposite inner walls of the first part 11 and the second part 12; the gas flow baffle 17 is adapted to prevent leakage of shielding gas within the gas flow channel 13. The shape of the air flow baffle 17 is the same as the shape of the inner walls of the first portion 11 and the second portion 12 in this embodiment, and in order to ensure airtightness, the gap between the air flow baffle 17 and the first portion 11 or the second portion 12 is filled with a sealant.
Further, the outer wall of the blowing mechanism 1 is provided with an observation inclined plane 18, the horizontal sectional area of the end part of the blowing mechanism 1, which is close to the welding wire, of the observation inclined plane 18 is gradually reduced, and in the welding process, the outer wall of the blowing mechanism 1 shields the welding wire, so that operators need to climb on the surface of a welding piece to observe in a short distance, the labor intensity is high, and the observation effect is poor; in this application operating personnel can directly observe the welding condition of welding wire through observing inclined plane 18 to also can clearly see molten pool and electric arc's condition, be provided with and observe inclined plane 18 and can enlarge viewing angle, operating personnel can observe the welding condition of welding wire in more comfortable position, intensity of labour is little and observation effect is good
In this embodiment, the angle between the inclined slope and the horizontal plane is 30 °.
Example 2
This embodiment is basically the same as embodiment 1 except that the blowing mechanism 1 is made of an H62 copper-zinc alloy. And the lower bottoms of the first portion 11 and the second portion 12 are 42mm in length, 20mm in width and 66mm in height. Wherein the distance from the center of the flow-equalizing filter tube 15 in the first part 11 and the second part 12 to the upper end surface of the flow-equalizing screen is 14mm.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A secondary gas protection apparatus, comprising:
the blowing mechanism (1) is internally provided with a through hole which is suitable for a welding gun to pass through; the blowing mechanism (1) is suitable for blowing protective gas towards the periphery of the welding wire;
the blowing mechanism (1) comprises a first part (11) and a second part (12); a first mounting groove (111) and a second mounting groove (112) are formed on two sides of the first part (11) at intervals along the airflow flowing direction; mounting structures (121) are arranged on two sides of the second part (12); the air blowing mechanism (1) has a first working state and a second working state, when the air blowing mechanism (1) is in the first working state, the mounting structure (121) is mounted in the first mounting groove (111), and at the moment, the first part (11) and the bottom surface of the second part (12) are positioned on the same horizontal plane; when the air blowing mechanism (1) is in the second working state, the mounting structure (121) is mounted in the second mounting groove (112), and at the moment, the bottom surfaces of the first part (11) and the second part (12) are in different horizontal planes.
2. The secondary gas protection apparatus as defined in claim 1, wherein said mounting structure (121) comprises a mounting member (122) and a locking member (123), said mounting member (122) having one end fixedly connected to said second portion (12), and said mounting member (122) having another end adapted to be mounted in said mounting slot; the locking member (123) is adapted to pass through the mounting member (122), and the locking member (123) is adapted to move in a direction toward and abut the mounting groove.
3. The secondary gas protection apparatus of claim 2 wherein said mounting member (122) is threadably coupled to said locking member (123); the mounting piece (122) is provided with a threaded hole; the outer surface of the locking piece (123) is provided with threads suitable for being connected with the threaded hole.
4. The secondary gas protection apparatus as defined in claim 1, wherein said blowing mechanism (1) further comprises:
-an airflow channel (13) having two, two of said airflow channels (13) flowing through the interiors of said first (11) and second (12) portions, respectively; one end of the airflow channel (13) is an air inlet, and the other end is an air outlet.
5. The secondary gas protection apparatus as defined in claim 1, wherein said blowing mechanism (1) further comprises:
-a water cooled runner (14) having two water cooled runners (14) flowing through the interior of the first and second sections (11, 12), respectively; the water cooling flow channel (14) is internally provided with a heat exchange medium, the heat exchange medium is suitable for exchanging heat with the air blowing mechanism (1), one end of the water cooling flow channel (14) is a water inlet, and the other end is a water outlet.
6. The secondary gas protection apparatus as defined in claim 4, wherein said blowing mechanism (1) further comprises:
a uniform flow filter tube (15) arranged in the airflow channel (13); the uniform flow filter pipes (15) are arranged corresponding to the airflow channels (13); the flow homogenizing filter tube (15) homogenizes the flow rate of the shielding gas passing therethrough.
7. The secondary gas protection apparatus as defined in claim 6, wherein said blowing mechanism (1) further comprises:
the two uniform flow structures (16) are arranged, and the two uniform flow structures (16) are detachably connected with the first part (11) and the second part (12) respectively; the uniform flow structure (16) is arranged corresponding to the airflow channel (13).
8. The secondary gas protection apparatus of claim 7 wherein said uniform flow structure (16) comprises:
the uniform flow sieve is positioned in the air blowing mechanism (1) and is connected with the airflow channel (13); the shielding gas in the gas flow passage (13) flows through the uniform flow sieve; the flow homogenizing screen is arranged downstream of the flow homogenizing filter tube (15).
9. The secondary gas protection apparatus as defined in claim 4, wherein said blowing mechanism (1) further comprises:
the two airflow baffles (17) are arranged, and the two airflow baffles (17) are respectively arranged at the inner walls opposite to the first part (11) and the second part (12); the gas flow baffle (17) is adapted to prevent leakage of shielding gas within the gas flow channel (13).
10. The secondary gas protection apparatus as defined in claim 1, wherein an outer wall of said blowing mechanism (1) is provided with an observation slope (18); the observation inclined surface (18) gradually reduces the horizontal sectional area of the end part of the blowing mechanism (1) close to the welding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311813230.5A CN117620379A (en) | 2023-12-26 | 2023-12-26 | Secondary gas protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311813230.5A CN117620379A (en) | 2023-12-26 | 2023-12-26 | Secondary gas protection device |
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| CN117620379A true CN117620379A (en) | 2024-03-01 |
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| CN202311813230.5A Pending CN117620379A (en) | 2023-12-26 | 2023-12-26 | Secondary gas protection device |
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| CN211084513U (en) * | 2019-12-28 | 2020-07-24 | 威海邦德散热系统股份有限公司 | Air conditioner concurrent flow condenser for automobile |
| CN212019822U (en) * | 2020-03-31 | 2020-11-27 | 凯特工业科技（惠州）有限公司 | Repair welding equipment with dust removal function |
| CN114654055A (en) * | 2021-12-21 | 2022-06-24 | 武汉纳瑞格智能设备有限公司 | Secondary gas protection device for narrow-gap MAG/MIG automatic welding |
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2023
- 2023-12-26 CN CN202311813230.5A patent/CN117620379A/en active Pending
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| CN102773596A (en) * | 2012-07-23 | 2012-11-14 | 昆山瑞凌焊接科技有限公司 | Narrow gap double-wire welding gun |
| JP2015142929A (en) * | 2014-01-31 | 2015-08-06 | 新日鐵住金株式会社 | Fillet weld method and appliance achieving excellent appearance of weld metal |
| CN204221176U (en) * | 2014-11-14 | 2015-03-25 | 苏州市冯氏钣金有限公司 | Welding gas protecting tool set-up |
| CN211084513U (en) * | 2019-12-28 | 2020-07-24 | 威海邦德散热系统股份有限公司 | Air conditioner concurrent flow condenser for automobile |
| CN212019822U (en) * | 2020-03-31 | 2020-11-27 | 凯特工业科技（惠州）有限公司 | Repair welding equipment with dust removal function |
| CN114654055A (en) * | 2021-12-21 | 2022-06-24 | 武汉纳瑞格智能设备有限公司 | Secondary gas protection device for narrow-gap MAG/MIG automatic welding |
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