CN114309893A - Digital contravariant gas shielded welding machine - Google Patents
Digital contravariant gas shielded welding machine Download PDFInfo
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- CN114309893A CN114309893A CN202210030997.XA CN202210030997A CN114309893A CN 114309893 A CN114309893 A CN 114309893A CN 202210030997 A CN202210030997 A CN 202210030997A CN 114309893 A CN114309893 A CN 114309893A
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- 238000003466 welding Methods 0.000 title claims abstract description 103
- 230000001133 acceleration Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 230000001681 protective effect Effects 0.000 abstract description 7
- 239000000428 dust Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
The invention discloses a digital inverter gas shielded welding machine which comprises a welding machine main body and a welding gun, wherein a handle is connected to the front vertical surface of the welding machine main body through a connecting line, one end of the handle is connected with the welding gun, the top surface of the handle is fixedly connected with a gas ring through a support, the gas ring is positioned right above the welding gun, a gas flow channel is formed in the gas ring, and an acceleration groove is formed in the bottom surface of the gas flow channel. Has the advantages that: the gas ring and the gas conveying blower are adopted, when welding is carried out, the gas conveying blower is started, high-speed airflow is generated and injected into the airflow channel formed in the gas ring through the gas conveying pipe, the high-speed airflow is accelerated by the accelerating groove and then is accelerated and discharged along the gas outlet groove, a cylindrical air wall is formed and is covered on the outer side of the welding gun to block the airflow in the external environment, and therefore the problem that the gas protection effect is poor due to the fact that the airflow in the external environment blows off protective gas is solved, the convenience of outdoor use is improved, and meanwhile the protective welding efficiency is improved.
Description
Technical Field
The invention relates to the technical field of digital inverter gas shielded welding machines, in particular to a digital inverter gas shielded welding machine.
Background
The digital inversion gas shielded welding machine realizes digital control on the inversion gas shielded welding machine, so that the inversion gas shielded welding machine is more convenient and safer to use.
However, when the digital inverter type gas shielded welding machine is used outdoors, a welding gun is very easily influenced by external air flow, the gas protection effect is poor, the shielded welding process is influenced, the traditional solution mode is a baffle for increasing, but the mode is troublesome, inconvenient movement and inconvenient high-altitude operation are not facilitated, the improvement can be further made, in addition, a heat dissipation fan is arranged inside the digital inverter type gas shielded welding machine at the current stage, a heat dissipation grating is arranged on the outer wall of the digital inverter type gas shielded welding machine and used for improving the heat dissipation efficiency, however, dust in the external air can also enter the machine body from the heat dissipation grating, the dust accumulation of an electrical element is caused, the overheating or contact problem is caused, the service life of the welding machine is influenced, meanwhile, the dust removal inside the traditional digital inverter type gas shielded welding machine is troublesome, the cleaning is inconvenient, and the improvement can also be further made.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a digital inverter gas shielded welding machine which has the advantages of convenience for outdoor welding use, prolonged service life and convenience for cleaning and maintenance, and further solves the problems in the background technology.
(II) technical scheme
In order to realize the advantages of convenient outdoor welding use, prolonged service life and convenient cleaning and maintenance, the invention adopts the following specific technical scheme:
the utility model provides a digital contravariant gas shielded welder, includes welding machine main part and welder, the positive facade of welding machine main part is connected with the handle through the connecting wire, and handle one end is connected with welder to the handle top surface passes through support fixedly connected with gas ring, the gas ring is located directly over welder, and the inside airflow channel that has seted up of gas ring to the acceleration groove has been seted up to the airflow channel bottom surface, the acceleration groove bottom surface runs through the gas ring bottom surface and has seted up out the gas groove, welding machine main part side fixed surface installs quick-witted case, and quick-witted incasement portion fixed mounting has gas conveying fan to gas conveying fan gives vent to anger and holds through connection and have the connecting pipe, the connecting pipe other end through connection has the gas-supply pipe, and the gas-supply pipe other end runs through gas ring top surface and airflow channel through connection.
Further, the gas delivery fan inlet end and the inside through connection of welding machine main part, and welding machine main part opposite side surface is located the air inlet grille outside fixedly connected with mounting groove of welding machine main part to the inside fixed mounting of mounting groove has the well effect filter.
Further, mounting groove outer wall fixed mounting has the rotation post, and rotates the post outer wall and rotate and cup joint the lantern ring to lantern ring skin weld has the connecting rod, threaded connection has the handle bolt through on the connecting rod surface, and the welding of the handle bolt other end has the clamp plate, and clamp plate opposite side fixed surface bonds there is the pressure pad.
Furthermore, the airflow channel is annularly arranged, the vertical section of the accelerating groove is funnel-shaped, and the width of the air outlet groove is not more than 1 mm.
Furthermore, the connecting pipe is inverted funnel-shaped, a flange is welded on the bottom surface of the connecting pipe, and the connecting pipe is fixedly connected with the air outlet end of the air delivery fan through the flange.
Furthermore, the gas ring and the bracket are made of high-temperature-resistant hard plastic materials, and the lens is transversely and fixedly connected between the inner side surfaces of the gas ring.
Furthermore, the machine cabin is integrally connected to the surface of the other side of the machine box, and air holes are densely formed in the surface of the other side of the machine cabin.
Furthermore, the inner wall of the lantern ring is provided with an insert ring, the surface of the rotating column is provided with a ring groove, and the insert ring is inserted into the ring groove and is rotationally connected with the ring groove.
Furthermore, the mounting groove is internally provided with an inner ring which is fixedly arranged on the surface of the other side of the welding machine main body, and a rubber pad is pasted on the outer side surface of the inner ring.
Furthermore, a fan control switch is fixedly installed on the front vertical surface of the welding machine main body, and the output end of the fan control switch is electrically connected with the input end of the gas conveying fan.
(III) advantageous effects
Compared with the prior art, the invention provides a digital inverter gas shielded welding machine which has the following beneficial effects:
(1) the gas ring and the gas conveying blower are adopted, when welding is carried out, the gas conveying blower is started, high-speed airflow is generated and injected into an airflow channel formed in the gas ring through a gas conveying pipe, the high-speed airflow is accelerated by the accelerating groove and then is accelerated and discharged along the gas outlet groove to form a cylindrical air wall, and the cylindrical air wall is covered outside the welding gun and blocks the airflow in the external environment, so that the problem that the gas protection effect is poor due to the fact that the airflow in the external environment blows away protective gas is solved, the convenience of outdoor use is improved, and meanwhile, the protective welding efficiency is improved.
(2) The invention adopts the middle-effect filter and the gas transmission blower, the middle-effect filter is arranged outside the ventilation grille of the welding machine main body, the gas inlet end of the gas transmission blower is communicated with the shell of the welding machine main body, when welding operation is carried out, the gas transmission blower extracts air in the welding machine main body and inputs the air into the gas transmission pipe, and outside air is supplemented into the welding machine main body after being filtered by the middle-effect filter, so that forced cooling is completed, the cooling efficiency is higher, in addition, dust accumulation in the welding machine main body is avoided by the air after filtering and dust removal, the problems of overheating or poor contact and the like caused by dust accumulation of electronic elements in the welding machine main body are avoided, and the service life of the welding machine main body is prolonged.
(3) The middle-effect filter is installed by adopting the installation groove, the rotating column and the handle bolt, when the middle-effect filter is installed, the middle-effect filter can be placed in the installation groove, then the pressing plate from the connecting rod to one end of the handle bolt is rotated to be aligned with the edge of the middle-effect filter, the handle bolt can be rotated to push the pressing pad on one side surface of the pressing plate to press the edge surface of the middle-effect filter, the installation can be completed, when the middle-effect filter is disassembled, the handle bolt only needs to be rotated reversely, then the middle-effect filter can be taken out by rotating the connecting rod until the handle bolt does not shield the middle-effect filter, and the cleaning and the maintenance are very convenient and rapid.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a digital inverter gas shielded welding machine according to an embodiment of the present invention;
FIG. 2 is a front view of a digital inverter gas shielded welder, in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged view of a node A of a digital inverter gas shielded welder, in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of a B node of a digital inverter gas shielded welder, in accordance with an embodiment of the present invention;
fig. 5 is an external structural diagram of a chassis according to an embodiment of the present invention;
FIG. 6 is a schematic view showing an external structure of a connection pipe according to an embodiment of the present invention;
FIG. 7 is a schematic view of the outer structure of a gas ring according to an embodiment of the present invention;
FIG. 8 is a schematic view of the installation of a handle bolt according to an embodiment of the present invention.
In the figure:
1. a welder body; 2. a connecting wire; 3. a handle; 4. a welding gun; 5. a support; 6. a gas ring; 7. a lens; 8. an air flow channel; 9. a gas delivery pipe; 10. a chassis; 11. a connecting pipe; 12. a gas delivery fan; 13. mounting grooves; 14. a medium-efficiency filter; 15. an inner ring; 16. a rubber pad; 17. rotating the column; 18. a collar; 19. a connecting rod; 20. a handle bolt; 21. pressing a plate; 22. a pressure pad; 23. an acceleration tank; 24. an air outlet groove; 25. a machine cabin; 26. air holes are formed; 27. and (4) a flange.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to an embodiment of the invention, a digital inverter gas shielded welder is provided.
Referring to the drawings and the detailed description, as shown in fig. 1-8, a digital inverter gas shielded welding machine according to an embodiment of the invention includes a welding machine main body 1 and a welding gun 4, wherein a vertical surface of the welding machine main body 1 is connected with a handle 3 through a connecting line 2, and one end of the handle 3 is connected with the welding gun 4, which is a common structure in the art and will not be described herein, and a top surface of the handle 3 is fixedly connected with a gas ring 6 through a bracket 5, the gas ring 6 is located above the welding gun 4, a gas flow channel 8 is formed in the gas ring 6, an acceleration groove 23 is formed in a bottom surface of the gas flow channel 8, a gas outlet groove 24 is formed in the bottom surface of the acceleration groove 23 penetrating through the bottom surface of the gas ring 6, a case 10 is fixedly mounted on a surface of one side of the welding machine main body 1, a gas delivery fan 12 is fixedly mounted in the case 10, and a gas outlet end of the gas delivery fan 12 is connected with a connecting pipe 11, connecting pipe 11 other end through connection has gas-supply pipe 9, and the gas-supply pipe 9 other end runs through 6 top surfaces of gas ring and 8 through connections of air current passageway, gas-supply pipe 9 is the hose, be convenient for remove handle 3, when welding, gaseous conveyor fan 12 starts, produce the high velocity air current and inject into the air current passageway 8 that 6 inside setups of gas ring through gas-supply pipe 9, the high velocity air current is discharged with higher speed along gas outlet groove 24 after 23 acceleration grooves, form the tube-shape brattice, the cover is established in the 4 outsides of welder, block the air current in the external environment, thereby avoid the air current among the external environment to blow off protective gas and arouse the not good problem of gas protection effect, the convenience of outdoor use has been improved, the shielded welding efficiency has been improved simultaneously.
In one embodiment, the air inlet end of the air delivery fan 12 is connected with the interior of the welding machine body 1 in a through manner so as to facilitate air extraction of internal air, the other side surface of the welding machine body 1 is fixedly connected with a mounting groove 13 positioned on the outer side of an air inlet grille of the welding machine body 1, a middle-effect filter 14 is fixedly mounted inside the mounting groove 13 and is a common air filtering device, the middle-effect filter 14 is mounted on the outer side of the air inlet grille of the welding machine body 1, the air inlet end of the air delivery fan 12 is connected with a shell of the welding machine body 1 in a through manner, when welding operation is carried out, the air delivery fan 12 extracts air in the welding machine body 1 and inputs the air into the air delivery pipe 9, external air is filtered by the middle-effect filter 14 and then supplementarily enters the welding machine body 1, so that forced cooling is completed, the cooling efficiency is higher, in addition, dust accumulation in the interior of the welding machine body 1 is avoided by the filtered and dedusted air, the problems of overheating or poor contact and the like caused by dust accumulation of electronic components in the welding machine main body 1 are avoided, and the service life of the welding machine main body 1 is prolonged.
In one embodiment, a rotating column 17 is fixedly installed on the outer wall of the installation groove 13, a sleeve ring 18 is rotatably sleeved on the outer wall of the rotating column 17, a plurality of connecting rods 19 are welded on the surface of the sleeve ring 18, a handle bolt 20 penetrates through the surface of each connecting rod 19 in a threaded connection manner, a pressing plate 21 is welded at the other end of each handle bolt 20, a pressing pad 22 is fixedly bonded on the other side surface of each pressing plate 21, the pressing pad 22 is made of rubber, friction grains are formed on the surface of each pressing pad 22, friction force is improved, when the middle-effect filter 14 is installed, the middle-effect filter 14 can be placed into the installation groove 13, then the pressing plates 21 at one ends of the connecting rods 19 and the handle bolts 20 are rotated to be aligned with the edge of the middle-effect filter 14, the handle bolts 20 can be rotated to push the pressing pads 22 on one side surface of the pressing plates 21 to press the edge surface of the middle-effect filter 14, installation can be completed, when the middle-effect filter 14 is disassembled, the handle bolts 20 only need to be rotated reversely, then the connecting rod 19 is rotated to the handle bolt 20, the medium-efficiency filter 14 can be taken out without blocking the medium-efficiency filter 14, and the cleaning and the maintenance are very convenient and fast.
In one embodiment, the airflow channel 8 is annularly formed, the vertical section of the accelerating groove 23 is funnel-shaped, the section of the accelerating groove gradually becomes smaller from top to bottom, so that the airflow can flow out in an accelerating way, the width of the air outlet groove 24 is not more than 1mm, the airflow can flow out quickly, and the air wall with high flow speed is formed.
In one embodiment, the connecting pipe 11 is an inverted funnel shape, the cross-sectional area is gradually reduced, so that the effect of preliminarily accelerating the airflow is achieved, the flange 27 is welded on the bottom surface of the connecting pipe 11, the connecting pipe 11 is fixedly connected with the air outlet end of the air delivery fan 12 through the flange 27, the connecting structure is common, and redundant description is not repeated herein.
In one embodiment, the gas ring 6 and the bracket 5 are made of high-temperature-resistant hard plastic materials, the weight is lighter, the gas ring and the bracket can be conveniently moved together with the handle 3, the lens 7 is transversely and fixedly connected between the inner side surfaces of the gas ring 6, and the lens 7 prevents welding slag from entering eyes to protect workers.
In one embodiment, a cabinet 25 is integrally connected to the other side surface of the housing 10, the driving motor of the air delivery fan 12 is located in the cabinet 25, and air holes 26 are densely formed in the other side surface of the cabinet 25, so that the air delivery fan 12 can dissipate heat.
In one embodiment, the inner wall of the collar 18 is provided with a ring, the surface of the rotating column 17 is provided with a ring groove, and the ring is inserted into the ring groove and is rotatably connected with the ring groove to prevent the collar 18 from falling off.
In one embodiment, an inner ring 15 is fixedly mounted inside the mounting groove 13 on the other side surface of the welding machine body 1, a rubber pad 16 is adhered to the outer side surface of the inner ring 15, and the middle-efficiency filter 14 tightly abuts against the rubber pad 16 after being mounted, so that dust is prevented from entering.
In one embodiment, a fan control switch is fixedly installed on the front vertical surface of the welder body 1, and the output end of the fan control switch is electrically connected with the input end of the gas delivery fan 12, which is a common control structure and not shown in detail in the figure.
The working principle is as follows:
when welding, the gas delivery fan 12 is started, high-speed airflow is generated and injected into the airflow channel 8 arranged in the gas ring 6 through the gas pipe 9, the high-speed airflow is accelerated by the accelerating groove 23 and then is accelerated to be discharged along the gas outlet groove 24 to form a cylindrical air wall which is covered outside the welding gun 4 to block the airflow in the external environment, so that the problem of poor gas protection effect caused by the fact that the airflow in the external environment blows off protective gas is avoided, the convenience of outdoor use is improved, the protective welding efficiency is improved, meanwhile, the middle-effect filter 14 is arranged outside the ventilation grating of the welding machine main body 1, the gas inlet end of the gas delivery fan 12 is communicated with the shell of the welding machine main body 1, when welding operation is carried out, the gas delivery fan 12 extracts the air in the welding machine main body 1 and inputs the air into the gas pipe 9, the external air is supplemented into the welding machine main body 1 after being filtered by the middle-effect filter 14, thereby accomplish the forced cooling, cooling efficiency is higher, in addition, the inside laying dust of welding machine main part 1 has been avoided to the air after filtering the dust removal, avoid the inside electronic component of welding machine main part 1 because the overheating or the contact failure scheduling problem that the laying dust produced, the life of welding machine main part 1 has been prolonged, in addition, when installing middle effect filter 14, can put into mounting groove 13 middle effect filter 14, then the clamp plate 21 of rotating connecting rod 19 to handle bolt 20 one end aims at middle effect filter 14 edge, can rotate handle bolt 20 and promote the pressure pad 22 of clamp plate 21 side surface and compress tightly middle effect filter 14 edge surface, can accomplish the installation, when dismantling, only need reverse rotation handle bolt 20, then rotate connecting rod 19 to handle bolt 20 and do not shelter from middle effect filter 14 and can take out middle effect filter 14, the clearance is maintained very convenient and fast.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The digital inverter gas shielded welding machine is characterized by comprising a welding machine main body (1) and a welding gun (4), wherein a vertical surface of the welding machine main body (1) is connected with a handle (3) through a connecting wire (2), one end of the handle (3) is connected with the welding gun (4), the top surface of the handle (3) is fixedly connected with a gas ring (6) through a support (5), the gas ring (6) is positioned right above the welding gun (4), an airflow channel (8) is arranged inside the gas ring (6), an accelerating groove (23) is arranged on the bottom surface of the airflow channel (8), a gas outlet groove (24) is formed in the bottom surface of the accelerating groove (23) penetrating through the bottom surface of the gas ring (6), a case (10) is fixedly arranged on the surface of one side of the welding machine main body (1), a gas conveying fan (12) is fixedly arranged inside the case (10), and the gas outlet end of the gas conveying fan (12) is connected with a connecting pipe (11), the other end of the connecting pipe (11) is connected with a gas pipe (9) in a through mode, and the other end of the gas pipe (9) penetrates through the top surface of the gas ring (6) and is connected with the gas flow channel (8) in a through mode.
2. The digital inverter gas shielded welding machine according to claim 1, wherein the gas inlet end of the gas delivery blower (12) is connected with the interior of the welding machine body (1) in a penetrating manner, the other side surface of the welding machine body (1) is fixedly connected with an installation groove (13) at the outer side of the gas inlet grid of the welding machine body (1), and a medium efficiency filter (14) is fixedly installed in the installation groove (13).
3. The digital inverter gas shielded welding machine according to claim 2, wherein a rotating column (17) is fixedly installed on the outer wall of the installation groove (13), a sleeve ring (18) is rotatably sleeved on the outer wall of the rotating column (17), a connecting rod (19) is welded on the surface of the sleeve ring (18), a handle bolt (20) is connected on the surface of the connecting rod (19) in a penetrating and threaded mode, a pressing plate (21) is welded at the other end of the handle bolt (20), and a pressing pad (22) is fixedly bonded on the other side surface of the pressing plate (21).
4. The digital inverter gas shielded welding machine according to claim 1, wherein the gas flow channel (8) is annularly opened, the vertical section of the acceleration groove (23) is funnel-shaped, and the width of the gas outlet groove (24) is not more than 1 mm.
5. The digital inverter gas shielded welding machine as claimed in claim 1, wherein the connecting pipe (11) is in an inverted funnel shape, a flange (27) is welded to the bottom surface of the connecting pipe (11), and the connecting pipe (11) is fixedly connected with the air outlet end of the gas delivery fan (12) through the flange (27).
6. The digital inverter gas shielded welding machine as claimed in claim 1, wherein the gas ring (6) and the bracket (5) are made of high temperature resistant hard plastic, and a lens (7) is transversely and fixedly connected between the inner side surfaces of the gas ring (6).
7. The digital inverter gas shielded welding machine according to claim 1, wherein a machine cabin (25) is integrally connected to the other side surface of the machine box (10), and air holes (26) are densely formed in the other side surface of the machine cabin (25).
8. The digital inverter gas shielded welding machine as claimed in claim 3, wherein the inner wall of the collar (18) is provided with an insert ring, the surface of the rotating column (17) is provided with a ring groove, and the insert ring is inserted into and rotationally connected with the ring groove.
9. The digital inverter gas shielded welding machine according to claim 2, wherein an inner ring (15) is fixedly installed inside the installation groove (13) on the other side surface of the welding machine body (1), and a rubber pad (16) is adhered to the outer side surface of the inner ring (15).
10. The digital inverter gas shielded welding machine as claimed in claim 1, wherein a fan control switch is fixedly installed on the front vertical surface of the welding machine main body (1), and the output end of the fan control switch is electrically connected with the input end of the gas delivery fan (12).
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| CN202210030997.XA CN114309893A (en) | 2022-01-12 | 2022-01-12 | Digital contravariant gas shielded welding machine |
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| CN202210030997.XA CN114309893A (en) | 2022-01-12 | 2022-01-12 | Digital contravariant gas shielded welding machine |
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| CN109877426A (en) * | 2019-04-17 | 2019-06-14 | 燕山大学 | A kind of stereo-circulation gas shielded arc welding plumb joint |
| CN111219835A (en) * | 2020-03-05 | 2020-06-02 | 合肥正浩机械科技有限公司 | Integrated air curtain isolation device |
| CN212762380U (en) * | 2020-05-28 | 2021-03-23 | 南京颖元科技有限公司 | Adjustable machine tool material taking mechanism |
| CN213003221U (en) * | 2020-07-06 | 2021-04-20 | 深圳合大电气有限公司 | IGBT contravariant manual welding machine with dustproof construction |
| CN112059380A (en) * | 2020-09-30 | 2020-12-11 | 佛山宇仁智能科技有限公司 | Synchronous air cooling device for gas protection material increase |
| CN214227980U (en) * | 2021-01-28 | 2021-09-17 | 青岛必欧必电气有限公司 | Switch reluctance motor easy to disassemble and assemble |
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Application publication date: 20220412 |