Electric arc welding teaching operation experiment equipment
By designing a closed operating box and welding smoke filter device, the problems of harsh safety protection and teaching environment in manual arc welding teaching equipment are solved, and the safety isolation and environmentally friendly teaching environment for operators are realized, and the teaching experience is improved.
Patent Information
- Application Number
- CN202411590703.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-01-07
AI Technical Summary
The existing manual arc welding teaching equipment has defects in safety protection and teaching environment, which is difficult for beginners to protect effectively, and the teaching environment is harsh and there are adverse factors such as high temperature and toxic smoke, resulting in poor course experience.
An arc welding teaching operation experimental equipment was designed, including an operation box, a welding device and a weld smoke filter device. The operators were isolated from the welding site through the closure design of the operation box and the welding gloves. The centrifugal exhaust fan and filter were used to transfer metal smoke and dust. The toxic gas is filtered and discharged from the teaching site to form a closed welding operation space to ensure safe and environmentally friendly operation.
It effectively isolates the operator from high-temperature arcs and toxic smoke, improves the safety and comfort of teaching operations, avoids the inhalation of toxic smoke, realizes an environmentally friendly teaching environment, and improves the teaching experience.
Smart Images
Figure CN119260109A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of arc welding teaching equipment, and in particular to arc welding teaching operation experimental equipment. Background Art
[0002] Welding is one of the basic processes in the modern machinery manufacturing industry, and it is also a compulsory type of work in the engineering training courses of colleges and universities. Welding technology is mainly used in metal connection processes. Commonly used methods include arc welding, argon arc welding, CO2 shielded welding, oxygen-acetylene welding, laser welding, and electroslag pressure welding. The welding part of the engineering training courses in domestic colleges and universities mainly focuses on manual arc welding and argon arc welding. The working principle of arc welding is that the welding rod and the weldment are two electrodes. The heat generated by the arc discharge between the two electrodes is used to melt the metal, so that the two pieces of metal are fused into one. The temperature of the center part during arc discharge is as high as 3000°C-6000°C. Electric welding operations are dangerous and may cause safety accidents if you are not careful. The main hazards in welding teaching include metal smoke (melting welding rods and weldments are prone to produce a large amount of heavy metal smoke), toxic gases (such as carbon monoxide, nitrogen oxides, etc. produced by welding arcs), high temperature burns (metal splash, welding slag splash, accidental contact with high-temperature workpieces), etc.
[0003] The existing manual arc welding teaching equipment is similar to that of industrial sites, and has the following two defects: First, the safety protection of welding teaching mainly relies on students wearing bulky welding clothes and welding masks, and it is difficult for beginners to do a good job of safety protection in daily teaching; Second, the welding teaching environment is harsh, with unfavorable factors such as high temperature and toxic smoke, and the course experience is poor. Summary of the invention
[0004] The main purpose of the invention is to provide an arc welding teaching operation experimental equipment which can improve the safety of students' welding operation.
[0005] To achieve the above object, the present invention provides an arc welding teaching operation experimental device comprising: An operation box, wherein the first peripheral side wall and / or the upper end wall are provided with an observation window for observing the interior of the operation box, and the first peripheral side wall of the operation box is also provided with at least two operation windows, the two operation windows are spaced apart in the left-right direction, and each operation window is provided with a welding glove, and each welding glove is extended into the operation box; A welding device, comprising an electric welder, a welding platform and a welding clamp, wherein the welding platform and the welding clamp are arranged in the operating box, the welding platform is used to place the weldment, the electric welder is arranged outside the operating box and connected to the welding clamp and the welding platform through a cable; and, The welding smoke filtering device comprises a centrifugal exhaust fan and a filter. The filter is installed on the second peripheral side wall of the operation box and is communicated with the operation box. The centrifugal exhaust fan is connected to the filter and is connected to the external environment of the teaching site through a smoke exhaust duct.
[0006] Optionally, a cowhide sleeve is fixedly connected between each welding glove and its corresponding operating window.
[0007] Optionally, a first smoke outlet is provided on the second peripheral side wall of the operation box; The filters include: The housing is extended in the up-down direction, and a first smoke inlet is provided on a side wall close to the second peripheral side wall corresponding to the smoke outlet, the smoke inlet is connected to the smoke outlet, a second smoke outlet is provided on the upper end wall of the housing, and a dust outlet is provided on the lower end wall of the housing; An air filter element is extended in the up-down direction and is disposed in the housing; and A dust exhaust cover is detachably arranged on the dust outlet; The centrifugal exhaust fan is arranged at the upper end of the housing and is disposed corresponding to the second smoke outlet.
[0008] Optionally, the housing comprises an upper shell and a lower shell connected in sequence along the up-down direction, the upper shell is in a rectangular parallelepiped configuration, the lower shell is tapered from its upper end to its lower end, and the cross section of its upper end is in a rectangular configuration, and the cross section of its lower end is in a circular configuration; The air filter element is arranged in the upper housing; The dust outlet is formed at the lower end of the lower shell, and the dust exhaust cover is threadedly installed at the lower end of the lower shell.
[0009] Optionally, a first slag discharge port is formed through the lower end wall of the operation box; The arc welding teaching operation experimental equipment also includes: a support frame, disposed at the lower side of the operation box and extending in the up-down direction, for supporting the operation box; and A slag discharge box is provided at the lower side of the operating box, the upper end wall of which is provided with a first slag inlet, and the lower end wall of which is provided with a second slag discharge outlet, wherein the first slag inlet is connected to the first slag discharge outlet; A slag discharge gap is provided between the welding platform and the operating box, so that the welding slag in the operating box can fall into the slag discharge box.
[0010] Optionally, the slag discharge box is arranged in a prism shape, and is gradually tapered from top to bottom; The arc welding teaching operation experimental equipment also includes an air inlet box, which includes: A box body is arranged through in the up-down direction, the upper end of the box body is arranged corresponding to the second slag discharge port of the slag discharge box, and is detachably connected to the slag discharge box, and an air inlet is opened on one side wall of the box body, and the air inlet is connected to the external environment of the teaching venue through an air inlet duct; and The box cover is detachably mounted on the lower end of the box body.
[0011] Optionally, the first peripheral side wall of the operation box includes a first wall and a second wall, the first wall and the second wall are arranged at an angle, the first wall is connected to the upper end wall of the operation box, and the second wall is connected to the lower end wall of the operation box; The observation window is arranged on the first wall, and the operation window is opened on the second wall.
[0012] Optionally, the first wall is provided with an observation port; The observation window includes: Glass, fixedly mounted on the first wall corresponding to the observation port; A filter film is attached to the upper surface of the glass and has a through hole passing through the middle thereof; and The photochromic lens is pasted on the filter film corresponding to the through hole.
[0013] Optionally, the welding device also includes a bracket, which is arranged in the operation box, including a connecting rod and a hollow steel pipe, the connecting rod is extended in the up and down directions, and its upper end is fixedly connected to the upper end wall of the operation box, and its lower end is connected to the hollow steel pipe, and the hollow steel pipe is extended in the left and right directions.
[0014] Optionally, the arc welding teaching operation experimental equipment also includes a lighting lamp, which is arranged in the operation box.
[0015] In the technical solution of the present invention, the hands of the operator (such as a student, a teacher, etc.) wearing the welding gloves extend into the operation box through the operation window, and then hold the welding tongs to clamp the welding rod and weld with the weldment. In this way, a closed welding operation space is formed by setting up the operation box, which can physically isolate the operator from the welding site, effectively isolate the operator from the high-temperature arc, splashing metal liquid and toxic smoke, and ensure the safety of teaching operations; and during the welding process, the operator can observe the operation conditions in the operation box through the observation window and understand the welding conditions in real time, and through the centrifugal exhaust fan and the filter, the metal smoke and toxic gases generated in the operation box can be filtered by the filter and then discharged to the teaching site (such as a classroom) through the exhaust pipe, which not only avoids the operator from inhaling toxic smoke, but also realizes the environmental protection of teaching activities, and welding teaching can be carried out in an air-conditioned environment, effectively improving the teaching comfort. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0017] Figure 1 A structural schematic diagram of an embodiment of the arc welding teaching operation experimental equipment provided by the present invention at a viewing angle; Figure 2 for Figure 1 The structural diagram of the arc welding teaching operation experimental equipment in another perspective; Figure 3 for Figure 1 Schematic diagram of some structures of arc welding teaching operation experimental equipment; Figure 4 for Figure 3 Schematic diagram of some structures; Figure 5 for Figure 1 The structural diagram of the welding smoke filtering device; Figure 6 for Figure 1 Schematic diagram of some structures of arc welding teaching operation experimental equipment.
[0018] Description of Figure Numbers:
[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0023] The existing manual arc welding teaching equipment is similar to that of industrial sites, and has the following two defects: First, the safety protection of welding teaching mainly relies on students wearing bulky welding clothes and welding masks, and it is difficult for beginners to do a good job of safety protection in daily teaching; Second, the welding teaching environment is harsh, with unfavorable factors such as high temperature and toxic smoke, and the course experience is poor.
[0024] In view of this, the present invention provides an arc welding teaching operation experimental device 100, Figures 1 to 6 This is an embodiment of an arc welding teaching operation experimental device 100 provided by the present invention.
[0025] See also Figures 1 to 5 The arc welding teaching operation experimental equipment 100 comprises an operation box 1, a welding device 2 and a welding smoke filtering device 3. The first peripheral side wall 11 and / or the upper end wall 12 of the operation box 1 are provided with an observation window 13 for observing the inside of the operation box 1. The first peripheral side wall 11 of the operation box 1 is also provided with at least two operation windows 14, and the two operation windows 14 are spaced apart in the left and right directions, and each operation window 14 is installed with a welding glove 4, and each welding glove 4 extends into the operation box 1. The welding device 2 comprises an electric welder 21, a welding plane The welding platform 22 and the welding clamp 23 are arranged in the operation box 1, the welding platform 22 is used to place the weldment, the electric welder 21 is arranged outside the operation box 1, and is connected to the welding clamp 23 and the welding platform 22 through a cable; the welding smoke filtering device 3 includes a centrifugal exhaust fan 31 and a filter 32, the filter 32 is installed on the second peripheral side wall 15 of the operation box 1, and is communicated with the operation box 1, the centrifugal exhaust fan 31 is connected to the filter 32, and is connected to the external environment of the teaching venue through a smoke exhaust duct.
[0026] In the technical solution of the present invention, the hands of the operator (such as a student, a teacher, etc.) wearing the welding gloves 4 extend into the operation box 1 through the operation window 14, and then hold the welding tongs 23 to clamp the welding rod and weld with the weldment. In this way, a closed welding operation space is formed by setting the operation box 1, which can physically isolate the operator from the welding site, effectively isolate the operator from the high-temperature arc, splashing metal liquid and toxic smoke, and ensure the safety of teaching operations; and during the welding process, the operator can observe the operation conditions in the operation box 1 through the observation window 13, understand the welding conditions in real time, and through the centrifugal exhaust fan 31 and the filter 32, the metal smoke and toxic gases generated in the operation box 1 can be filtered by the filter 32 and then discharged from the teaching site (such as a classroom) through the exhaust pipe, which not only prevents the operator from inhaling toxic smoke, but also realizes the environmental protection of teaching activities, and welding teaching can be carried out in an air-conditioned environment, effectively improving the teaching comfort.
[0027] Furthermore, in one embodiment of the present invention, a cowhide sleeve 5 is fixedly connected between each welding glove 4 and its corresponding operation window 14, thereby expanding the operator's operable space and ensuring that the operator's hand movements under physical isolation are consistent with those during conventional welding. More specifically, the cowhide sleeve 5 is a variable diameter sleeve, which further expands the operator's hand movable range and improves the flexibility of both hands.
[0028] For further information, see Figure 3 In one embodiment of the present invention, each of the operating windows 14 is arranged in a rectangular shape, and each of the operating windows 14 is threadedly connected to a window frame 141, and the window frame 141 is a rectangular flange structure processed by 3D printing, and the material is nylon or other insulating materials. Further, each of the window frames 141 includes a flange body and a flange flange, and the flange is fixedly installed on the first peripheral side wall 11 corresponding to the operating window 14 by bolts, and the flange flange is arranged on the side of the flange body facing the operating box 1, and the cowhide sleeve 5 is sleeved on the outer periphery of the flange flange and fixed by a steel rolling belt 142.
[0029] For details, please refer to Figure 2 and Figure 5The second peripheral side wall 15 of the operation box 1 is provided with a first smoke outlet; the filter 32 includes a shell 321, an air filter element 322 and a dust cover 323, the shell 321 is extended in the up-down direction, and a side wall thereof close to the second peripheral side wall 15 is provided with a first smoke inlet corresponding to the smoke outlet, the smoke inlet is communicated with the smoke outlet, the upper end wall 12 of the shell 321 is provided with a second smoke outlet, and the lower end wall of the shell 321 is provided with a dust outlet; the air filter element 322 is extended in the up-down direction and is arranged in the shell 321; the dust cover 323 is detachably covered at the dust outlet; the centrifugal exhaust fan 31 is arranged at the upper end of the shell 321, and is arranged corresponding to the second smoke outlet. In this way, the metal smoke and toxic gases generated in the operating box 1 are filtered by the air filter 322 and divided into gas and smoke residue, wherein the gas is discharged from the teaching venue under the action of the centrifugal exhaust fan 31, and the smoke residue falls to the bottom of the shell 321 and accumulates, and can be discharged by opening the dust exhaust cover 323.
[0030] For further information, see Figure 2 and Figure 5 In one embodiment of the present invention, the housing 321 includes an upper housing 3211 and a lower housing 3212 connected in sequence along the up-down direction, the upper housing 3211 is a rectangular parallelepiped, the lower housing 3212 is tapered from its upper end to its lower end, and the cross section of its upper end is rectangular, and the cross section of its lower end is circular; the air filter element 322 is arranged in the upper housing 3211; the dust outlet is formed at the lower end of the lower housing 3212, and the dust cover 323 is threadedly installed at the lower end of the lower housing 3212. In this way, through the structural design of the lower housing 3212, the smoke residue falls into the bottom of the lower housing 3212, that is, on the dust cover 323, to prevent the smoke residue from being retained on the peripheral side wall of the lower housing 3212, and to facilitate the collection and cleaning of the smoke residue. More specifically, the upper shell 3211 and the lower shell 3212 are connected via a flange, and the upper shell 3211 is welded to the second peripheral side wall 15 of the operation box 1 .
[0031] Furthermore, a mounting portion is convexly provided at the lower end of the lower shell 3212, and an outer circumference of the mounting portion is provided with an external thread, and an inner circumferential wall of the dust cover 323 is provided with an internal thread adapted to the external thread, so that the dust cover 323 can be threadedly installed on the mounting portion for easy disassembly and assembly.
[0032] Furthermore, in one embodiment of the present invention, the air filter element 322 is a six-ear filter element and is fixedly mounted on the upper end wall 12 of the upper shell 3211, and the centrifugal exhaust fan 31 is fixedly mounted on the upper end of the upper shell 3211 through a flange ring.
[0033] For details, please refer to Figure 1 , Figure 2 and Figure 5 In the present invention, the centrifugal exhaust fan 31 includes a centrifugal fan 311 and a motor 312. The centrifugal fan 311 is arranged at the upper end of the upper shell 3211, and the motor 312 is arranged on the upper side of the centrifugal fan 311 and is drivingly connected to the centrifugal fan 311.
[0034] For details, please refer to Figures 1 to 3 In one embodiment of the present invention, the lower end wall of the operation box 1 is penetrated with a first slag discharge port; the arc welding teaching operation experimental equipment 100 also includes a support frame 6 and a slag discharge box 7, the support frame 6 is arranged at the lower side of the operation box 1, and is extended in the up-down direction to support the operation box 1; the slag discharge box 7 is arranged at the lower side of the operation box 1, and its upper end wall 12 is provided with a first slag inlet, and its lower end wall is provided with a second slag discharge port, and the first slag inlet is connected with the first slag discharge port; there is a slag discharge gap between the welding platform 22 and the operation box 1, so that the welding slag in the operation box 1 can fall into the slag discharge box 7; in this way, the welding slag can be quickly collected and cleaned by the slag discharge box 7. Specifically, after welding is completed, the operator can throw the welding slag into the slag discharge gap so that the welding slag falls into the slag discharge box 7.
[0035] More specifically, in one embodiment of the present invention, the slag box 7 is tapered from top to bottom, that is, the peripheral side walls of the slag box 7 are inclined to facilitate the welding slag to quickly slide to the bottom, and also facilitate the welding slag accumulated at the bottom of the slag box 7 to be quickly cleaned.
[0036] In addition, in an embodiment of the present invention, the support frame 6 includes four angle steel columns, and the four angle steel columns are respectively arranged at four corners of the operation box 1 to stably support the operation box 1.
[0037] For further information, see Figures 1 to 3The slag box 7 is arranged in a prism shape, and is gradually tapered from top to bottom; the arc welding teaching operation experimental equipment 100 also includes an air inlet box 8, and the air inlet box 8 includes a box body 81 and a box cover 82. The box body 81 is arranged through the up and down directions, and the upper end of the box body 81 corresponds to the second slag discharge port of the slag box 7 and is detachably connected to the slag box 7. An air inlet 811 is opened on one side wall of the box body 81, and the air inlet 811 is connected to the external environment of the teaching venue through an air inlet duct; the box cover 82 is detachably installed at the lower end of the box body 81. In this way, during the welding process, air is introduced into the box 81 through the air inlet duct, and the metal smoke and toxic gases generated in the operation box 1 are discharged from the operation box 1 to the outside of the teaching venue under the action of the centrifugal exhaust fan 31, so that the gas in the operation box 1 is connected to the external environment of the teaching venue, while being isolated from the operator, thereby improving the safety of the operator; at the same time, the welding slag falls into the bottom of the air inlet box 8 through the slag discharge gap and the slag discharge box 7 in turn, and the box cover 82 is opened to realize the discharge of the welding slag.
[0038] For details, please refer to Figure 6 In one embodiment of the present invention, an insulating bottom plate 10 is further provided in the operating box 1, and the insulating bottom plate 10 is provided under the welding platform 22, and the size of the insulating bottom plate 10 is larger than the size of the welding platform 22. More specifically, the insulating bottom plate 10 is made of phenolic resin or other fire-resistant insulating materials.
[0039] Furthermore, a slag discharge gap is provided between the insulating bottom plate 10 and the operating box 1 , so that the welding slag in the operating box 1 can fall into the slag discharge box 7 .
[0040] Furthermore, at least one support rod is provided in the operation box 1 , and the support rod is fixedly connected to the operation box 1 . The insulating bottom plate 10 is placed on the support rod, so that the support rod supports the insulating bottom plate 10 and the welding platform 22 .
[0041] For details, please refer to Figure 1 In one embodiment of the present invention, the first peripheral side wall 11 of the operation box 1 includes a first wall 111 and a second wall 112, the first wall 111 and the second wall 112 are arranged at an angle, and the first wall 111 is connected to the upper end wall 12 of the operation box 1, and the second wall 112 is connected to the lower end wall of the operation box 1; the observation window 13 is arranged on the first wall 111, and the operation window 14 is opened on the second wall 112. More specifically, the second wall 112 is extended in the up-down direction, and the angle between the first wall 111 and the second wall 112 is an obtuse angle, which is convenient for operators to observe the situation inside the operation box 1.
[0042] Furthermore, the main hazards in welding teaching include arc radiation, such as infrared, visible light and ultraviolet light. Therefore, please refer to Figure 1 , Figure 3 and Figure 4 In one embodiment of the present invention, the first wall 111 is provided with an observation port; the observation window 13 includes a glass 131, a filter film 132 and a photochromic lens, the glass 131 is fixedly mounted on the first wall 111 corresponding to the observation port; the filter film 132 is attached to the upper surface of the glass 131, and a through hole is passed through the middle thereof; the photochromic lens 133 is attached to the filter film 132 corresponding to the through hole; in this way, the filter film 132 and the photochromic lens 133 can prevent the operator from being damaged by arc radiation, and also provide the operator with a sufficient observation field of view.
[0043] More specifically, in one embodiment of the present invention, the transmittance of the filter film 132 is 1%, the shape of the observation port and the shape of the filter film 132 are both rectangular, the through hole opened on the filter film 132 is arranged in a rectangular shape, and correspondingly, the variable light lens is also arranged in a rectangular shape, and the size of the variable light lens is larger than the size of the through hole, and is adhered to the upper surface of the filter film 132 with structural adhesive.
[0044] Furthermore, the glass 131 is fixedly installed at the observation port of the first wall 111 through a flange made of sheet metal.
[0045] For details, please refer to Figure 1 and Figure 3 In one embodiment of the present invention, the welding device 2 further includes a bracket 24, which is disposed in the operating box 1 and includes a connecting rod 241 and a hollow steel pipe 242. The connecting rod 241 is extended in the up-down direction, and its upper end is fixedly connected to the upper end wall 12 of the operating box 1, and its lower end is connected to the hollow steel pipe 242, and the hollow steel pipe 242 is extended in the left-right direction. In this way, after welding is completed, the operator can insert the handle of the welding tongs 23 into the hollow steel pipe 242 and place it.
[0046] For details, please refer to Figure 3 In one embodiment of the present invention, the arc welding teaching operation experimental device 100 further includes a lighting lamp 9, which is arranged in the operation box 1; by providing the lighting lamp 9 to provide lighting, it is convenient for the operator to more clearly observe the situation in the operation box 1. More specifically, in one embodiment of the present invention, the lighting lamp 9 is an LED lamp, which is energy-saving and environmentally friendly.
[0047] Specifically, in one embodiment of the present invention, the third peripheral side wall of the operation box 1 is rotatably connected to the adjacent peripheral side wall, so that the operation box 1 has an open state and a closed state.
[0048] More specifically, the third peripheral side wall is rotatably connected to its adjacent peripheral side wall via a hinge or the like.
[0049] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An arc welding teaching operation experimental equipment, characterized in that: The arc welding teaching operation experimental equipment comprises: An operation box, wherein the first peripheral side wall and / or the upper end wall are provided with an observation window for observing the interior of the operation box, and the first peripheral side wall of the operation box is also provided with at least two operation windows, the two operation windows are spaced apart in the left-right direction, and each operation window is provided with a welding glove, and each welding glove is extended into the operation box; A welding device, comprising an electric welder, a welding platform and a welding clamp, wherein the welding platform and the welding clamp are arranged in the operating box, the welding platform is used to place the weldment, the electric welder is arranged outside the operating box and connected to the welding clamp and the welding platform through a cable; and, The welding smoke filtering device comprises a centrifugal exhaust fan and a filter. The filter is installed on the second peripheral side wall of the operation box and is communicated with the operation box. The centrifugal exhaust fan is connected to the filter and is connected to the external environment of the teaching site through a smoke exhaust duct.
2. The arc welding teaching operation experimental equipment according to claim 1, characterized in that: A cowhide sleeve is fixedly connected between each welding glove and its corresponding operating window.
3. The arc welding teaching operation experimental equipment according to claim 1, characterized in that: The second peripheral side wall of the operation box is provided with a first smoke outlet; The filters include: The housing is extended in the up-down direction, and a first smoke inlet is provided on a side wall close to the second peripheral side wall corresponding to the smoke outlet, the smoke inlet is connected to the smoke outlet, a second smoke outlet is provided on the upper end wall of the housing, and a dust outlet is provided on the lower end wall of the housing; An air filter element is extended in the up-down direction and is disposed in the housing; and A dust exhaust cover is detachably arranged on the dust outlet; The centrifugal exhaust fan is arranged at the upper end of the housing and is disposed corresponding to the second smoke outlet.
4. The arc welding teaching operation experimental equipment according to claim 3, characterized in that: The housing comprises an upper shell and a lower shell connected in sequence along the up-down direction, the upper shell is in a rectangular parallelepiped configuration, the lower shell is tapered from its upper end to its lower end, and the cross section of its upper end is in a rectangular configuration, and the cross section of its lower end is in a circular configuration; The air filter element is arranged in the upper housing; The dust outlet is formed at the lower end of the lower shell, and the dust exhaust cover is threadedly installed at the lower end of the lower shell.
5. The arc welding teaching operation experimental equipment according to claim 1, characterized in that: The lower end wall of the operation box is penetrated by a first slag discharge port; The arc welding teaching operation experimental equipment also includes: a support frame, disposed at the lower side of the operation box and extending in the up-down direction, for supporting the operation box; and A slag discharge box is provided at the lower side of the operating box, the upper end wall of which is provided with a first slag inlet, and the lower end wall of which is provided with a second slag discharge outlet, wherein the first slag inlet is connected to the first slag discharge outlet; A slag discharge gap is provided between the welding platform and the operating box, so that the welding slag in the operating box can fall into the slag discharge box.
6. The arc welding teaching operation experimental equipment according to claim 5, characterized in that: The slag discharge box is arranged in a prism shape and is gradually tapered from top to bottom; The arc welding teaching operation experimental equipment also includes an air inlet box, which includes: A box body is arranged through in the up-down direction, the upper end of the box body is arranged corresponding to the second slag discharge port of the slag discharge box, and is detachably connected to the slag discharge box, and an air inlet is opened on one side wall of the box body, and the air inlet is connected to the external environment of the teaching venue through an air inlet duct; and The box cover is detachably mounted on the lower end of the box body.
7. The arc welding teaching operation experimental equipment according to claim 1, characterized in that: The first peripheral side wall of the operation box includes a first wall and a second wall, the first wall and the second wall are arranged at an angle, the first wall is connected to the upper end wall of the operation box, and the second wall is connected to the lower end wall of the operation box; The observation window is arranged on the first wall, and the operation window is opened on the second wall.
8. The arc welding teaching operation experimental equipment according to claim 7, characterized in that: The first wall is provided with an observation port; The observation window includes: Glass, fixedly mounted on the first wall corresponding to the observation port; A filter film is attached to the upper surface of the glass and has a through hole passing through the middle thereof; and The photochromic lens is pasted on the filter film corresponding to the through hole.
9. The arc welding teaching operation experimental equipment according to claim 1, characterized in that: The welding device also includes a bracket, which is arranged in the operation box and includes a connecting rod and a hollow steel pipe. The connecting rod is extended in the up and down directions, and its upper end is fixedly connected to the upper end wall of the operation box, and its lower end is connected to the hollow steel pipe. The hollow steel pipe is extended in the left and right directions.
10. The arc welding teaching operation experimental equipment according to claim 1, characterized in that: The arc welding teaching operation experimental equipment also includes a lighting lamp, which is arranged in the operation box.