Welding practice device

Abstract

According to the welding practice device, a supporting column is supported on the ground, an adjusting part in a connecting assembly is movably arranged on the supporting column in the axial direction of the supporting column, when the height is adjusted properly, a positioning piece positions the adjusting part and the supporting column, and a connecting part, spaced from the adjusting part, in the connecting assembly is connected with a welding supporting piece; one side, far away from the connecting part, of the welding supporting piece is provided with a welding supporting surface for supporting the corrugated plate, the door-shaped frame is provided with a cross beam opposite to the welding supporting surface, at least two pressing assemblies are connected to the cross beam at intervals, and the pressing assemblies move in a reciprocating manner to be close to or far away from a pressing part of the welding supporting surface. The device can be close to a welding supporting surface and position a corrugated plate, can also adjust the height to adapt to the height of a welder, is high in practice efficiency, enables the position-fixed corrugated plate to visually feed back a welding result, facilitates the improvement of the practice efficiency and effect of the welder, and solves the technical problems of low corrugated plate welding practice efficiency and poor effect to a certain extent.

Description

Technical Field

[0001] The present application belongs to the field of welding technology, and in particular relates to a welding practice device. Background Art

[0002] The main barrier wall of a liquefied natural gas (LNG) storage tank is made of corrugated plates assembled and welded. To ensure the quality of the resulting tank, the welding quality of the corrugated plates needs to be improved. However, the improvement of the welding quality of the corrugated plates depends on the improvement of the welder's skills.

[0003] Currently, welders need to practice welding corrugated plates, and the welding practice of corrugated plates is completed by two welders working together, but this welding practice is not efficient and the effect is not good enough. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problem of low efficiency and poor effect of corrugated plate welding practice. To this end, the present application provides a welding practice device.

[0005] The present invention provides a welding training device, comprising:

[0006] Support columns;

[0007] a connecting assembly comprising an adjusting portion, a positioning member, and a connecting portion spaced apart from the adjusting portion, wherein the adjusting portion is movably disposed on the support column along the axial direction of the support column, and the positioning member is used to position the adjusting portion and the support column;

[0008] a welding support member connected to the connecting portion and having a welding support surface on a side away from the connecting portion;

[0009] a portal frame connected to the welding support and provided with a crossbeam opposite to the welding support surface;

[0010] At least two pressing assemblies are connected to the cross beam at intervals, and the pressing assemblies are provided with a pressing portion which can move back and forth to approach or move away from the welding support surface.

[0011] In some or certain embodiments, the pressing portion is provided with a V-shaped pressing groove.

[0012] In some or certain embodiments, the compression assembly includes:

[0013] A clamp comprising a base fixedly connected to the crossbeam, and a pressure head reciprocatingly movable relative to the base;

[0014] A high temperature resistant pressing piece is screwed to the pressing head and a side thereof facing the welding support surface is configured as the pressing portion.

[0015] In some or certain embodiments, the portal frame is further provided with two vertical plates respectively connected to the two ends of the beam, and two connecting blocks correspondingly connecting the two vertical plates. The welding support is located between the two connecting blocks and is connected to each of the connecting blocks through a mortise and tenon structure.

[0016] In some or certain embodiments, the mortise and tenon structure includes a connecting through-slot provided on the connecting block, and a passing portion provided on the welding support and used to pass through the corresponding connecting through-slot.

[0017] In some or certain embodiments, the welding support comprises:

[0018] A plate-shaped body connected to the portal frame, with one plate surface configured as the welding support surface;

[0019] The cylindrical portion is connected to the other plate surface of the plate-shaped body and is connected to the connecting portion.

[0020] In some or certain embodiments, the connecting portion is cylindrical and slidably sleeved on the cylindrical portion, and the connecting assembly further comprises a first fastener threaded through the connecting portion and with one end abutting against the cylindrical portion.

[0021] In some or certain embodiments, the connection component includes:

[0022] an adjusting cylinder coaxially and slidably sleeved on the supporting column, the adjusting cylinder being configured as the adjusting portion, and the positioning member being a fastener threaded through the adjusting cylinder and having one end abutting against the supporting column;

[0023] A first transition tube, one end of which is fixed to the outer peripheral wall of the adjustment tube;

[0024] The second transition tube has one end plugged into the first transition tube and the other end fixedly connected to the connecting portion.

[0025] In some or certain embodiments, the second transition cylinder is rotatably passed through the first transition cylinder, and the connection assembly further includes a rotation fastener threaded through the first transition cylinder and having one end abutting against the second transition cylinder.

[0026] In some or certain embodiments, the welding practice device further comprises:

[0027] A metal heat dissipation plate is embedded in the welding support and the surface with the largest area is flush with the welding support surface.

[0028] Advantageous effects provided by one or more embodiments of the present application:

[0029] When it is necessary to practice welding on structures such as corrugated plates, one end of the support column can be fixed to the ground of the environment, etc. The adjusting part in the connecting assembly is movably provided on the support column along the axial direction of the support column, and the height of the connecting assembly can be changed by moving the adjusting part. When the height is appropriate, the relative position of the adjusting part and the support column can be positioned using a positioning member, and the connecting part spaced from the adjusting part in the connecting assembly can be pulled a certain distance relative to the adjusting part and the support column. The connecting part is connected to the welding support, and a welding support surface is provided on the side of the welding support away from the connecting part, which can provide support for workpieces that need to be welded, such as corrugated plates. The portal frame connected to the welding support is provided with a crossbeam opposite to the welding support surface, and the whole can play a supporting role. And provide installation space for at least two clamping assemblies, at least two clamping assemblies are connected to the crossbeam at intervals, and the clamping part in the clamping assembly moves back and forth to approach or move away from the welding support surface, which can approach the welding support surface to press the corrugated plate and other workpieces on the welding support surface of the welding support. The corrugated plate is stably fixed, and the connecting assembly moves relative to the support column to adjust the height of the connecting assembly and the welding support, so that the height of the welded corrugated plate adapts to the height of the welder. Finally, the welder practices again with high practice efficiency, and the corrugated plate with a fixed position can also intuitively feedback the welding results, which is conducive to improving the welder's practice efficiency and effect, and to a certain extent solves the technical problems of low efficiency and poor effect of corrugated plate welding practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 A structural schematic diagram of a welding practice device in some embodiments or certain embodiments of the present application is shown.

[0032] Figure 2 An assembly diagram of a portal frame and a clamping assembly in some embodiments or certain embodiments of the present application is shown.

[0033] Figure 3 A side view of a portal frame in some embodiments or certain embodiments of the present application is shown.

[0034] Figure 4 A schematic structural diagram of a welding support member in some embodiments or certain embodiments of the present application is shown.

[0035] Figure 5 A side view of a welding support in some embodiments or certain embodiments of the present application is shown.

[0036] Figure 6 Shows an assembly diagram of a connection component and a support column in some embodiments or certain embodiments of the present application

[0037] Figure 7 An assembly diagram of a metal heat dissipation plate and a welding support member in some embodiments or certain embodiments of the present application is shown.

[0038] Figure 8 A side view of a metal heat dissipation plate in some embodiments or certain embodiments of the present application is shown.

[0039] Explanation of the accompanying drawings: 1. Support column; 2. Connecting assembly; 21. Adjusting part; 22. Positioning member; 23. Connecting part; 24. First transition cylinder; 25. Second transition cylinder; 26. Rotating fastener; 27. First fastener; 3. Welding support; 31. Plate-shaped body; 32. Cylindrical part; 4. Door frame; 41. Crossbeam; 42. Vertical plate; 43. Connecting block; 431. Connecting through groove; 5. Clamping assembly; 51. Clamping part; 511. V-shaped clamping groove; 52. Clamp; 521. Base; 522. Pressing head; 53. High-temperature resistant clamping member; 531. Rod; 532. Mounting part; 6. Metal heat sink. DETAILED DESCRIPTION

[0040] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0041] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0043] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0044] In the prior art, welding practice on corrugated sheet metal requires two welders, one of whom assists with positioning and height adjustment. The welding practice process is subject to human factors and considerable uncertainty, resulting in less intuitive feedback on welding results. This leads to technical issues such as low welder training efficiency and inadequate training results. The present invention provides a welding practice device that can at least partially address these technical issues.

[0045] The present application will be described below with reference to the accompanying drawings:

[0046] Figure 1 A schematic structural diagram of a welding practice device in some embodiments or certain embodiments of the present application is shown, with reference to Figure 1 , an embodiment of the present application provides a welding practice device, comprising:

[0047] Support column 1.

[0048] The connecting assembly 2 is provided with an adjusting portion 21 , a positioning member 22 and a connecting portion 23 spaced apart from the adjusting portion 21 . The adjusting portion 21 is movably provided on the support column 1 along the axial direction of the support column 1 , and the positioning member 22 is used to position the adjusting portion 21 and the support column 1 .

[0049] The welding support member 3 is connected to the connecting portion 23 , and a welding support surface is provided on a side away from the connecting portion 23 .

[0050] The portal frame 4 is connected to the welding support 3 and is provided with a crossbeam 41 opposite to the welding support surface.

[0051] At least two pressing assemblies 5 are connected to the cross beam 41 at intervals. The pressing assemblies 5 are provided with a pressing portion 51 that can reciprocate to move closer to or away from the welding support surface.

[0052] When it is necessary to practice welding on a structure such as a corrugated plate, one end of the support column 1 can be fixed to the ground of the environment, etc. The adjusting portion 21 in the connecting component 2 is movably provided on the supporting column 1 along the axial direction of the supporting column 1. The height of the connecting component 2 can be changed by moving the adjusting portion 21. When the height is appropriate, the positioning member 22 can be used to position the relative position of the adjusting portion 21 and the supporting column 1, and the connecting portion 23 in the connecting component 2 that is spaced from the adjusting portion 21 can be pulled a certain distance away from the supporting column 1 relative to the adjusting portion 21. The connecting portion 23 is connected to the welding support 3. The side of the welding support 3 away from the connecting portion 23 is provided with a welding support surface, which can provide support for workpieces that need to be welded, such as corrugated plates. The portal frame 4 connected to the welding support 3 is provided with a crossbeam 41 opposite to the welding support surface. , the whole can play a supporting role and provide installation space for at least two clamping assemblies 5. At least two clamping assemblies 5 are connected to the crossbeam 41 at intervals. The clamping part 51 in the clamping assembly 5 moves back and forth to approach or move away from the welding support surface. It can approach the welding support surface to press the corrugated plate and other workpieces on the welding support surface of the welding support 3. The corrugated plate is stably fixed, and the connecting assembly 2 moves relative to the support column 1 to adjust the height of the connecting assembly 2 and the welding support 3, so that the height of the welded corrugated plate adapts to the height of the welder. Finally, the welder practices again with high practice efficiency, and the corrugated plate with a fixed position can also intuitively feedback the welding results, which is conducive to improving the welder's practice efficiency and effect, and to a certain extent solves the technical problems of low efficiency and poor effect of corrugated plate welding practice.

[0053] Moreover, the above-mentioned welding practice device can also control the position of the connecting component 2 and the welding support 3 relative to the support during multiple practices, and cooperate with the clamping component 5 to press the corrugated plate and other workpieces onto the welding support 3, thereby effectively controlling the position of the corrugated plate relative to the welder, reducing the uncertainty factors that may exist during the welding practice of the welder, and also obtaining relatively certain welding results with intuitive feedback, which is conducive to improving the welding practice efficiency and welding practice effect of the welder.

[0054] It should be noted that a support column 1 of a certain diameter and weight can be placed on the ground at one end to provide support. In some or certain embodiments, the support column 1 can also be inserted through the ground or into a groove in a fixed device to provide support for the entire device. Alternatively, one end of the support column 1 can be connected to the ground or a fixed device via a flange or fasteners. In either case, the support column 1 can achieve its own support function.

[0055] Figure 2 Shows an assembly diagram of a door frame and a pressing assembly in some embodiments or certain embodiments of the present application, with reference to Figure 2 In some or certain embodiments, the pressing portion 51 is provided with a V-shaped pressing groove 511 .

[0056] The pressing portion 51 is provided with a V-shaped pressing groove 511, which can press on the protruding part of the corrugated plate through the V-shaped pressing groove 511. When the corrugated plate is in different orientations, the corrugated plate can also be stably positioned, thereby improving the positioning effect of the corrugated plate and improving the welding practice effect.

[0057] In some or certain embodiments, the pressing portion 51 may also be provided with an arc-shaped pressing groove, which can also cooperate with the protruding portion of the corrugated plate to achieve effective positioning of the corrugated plate.

[0058] In some or certain embodiments, the pressing portion 51 may also be a protrusion with a flat surface, etc., so as to position workpieces other than corrugated plates, and also to achieve stable positioning of the corrugated plates by pressing the flat portion of the corrugated plates and cooperating with the pressing portions 51 in other pressing components 5.

[0059] Figure 3 Shows a side view of a portal frame in some embodiments or certain embodiments of the present application, with reference to Figure 2 and Figure 3 In some or certain embodiments, the pressing assembly 5 may include:

[0060] The clamp 52 includes a base 521 fixedly connected to the crossbeam 41 and a pressing head 522 reciprocatingly movable relative to the base 521 .

[0061] The high temperature resistant pressing member 53 is screwed to the pressing head 522 and has a side facing the welding support surface configured as a pressing portion 51 .

[0062] The pressure head 522 of the clamp 52 in the clamping assembly 5 can move back and forth to drive the high-temperature resistant clamping part 53 connected to the clamping screw to move back and forth, so as to realize the approach or distance of the high-temperature resistant clamping part 53 relative to the welding support surface. The increase of the high-temperature resistant clamping part 53 can extend the service life of the clamping assembly 5, and the corrugated plate can be welded at high temperature multiple times.

[0063] In some or certain embodiments, the clamp 52 may be a manual clamp 52 further including a handle (not shown in the figure), and the handle and the pressing head 522 may be hinged to the base 521 and rotatable around the base 521. Driving the handle to rotate relative to the base 521 can drive the pressing head 522 to reciprocate.

[0064] It should be noted that the clamp 52 may also be other types of manual clamps 52 that are provided with a base 521 and a pressing head 522 , and the pressing head 522 may also be able to move back and forth.

[0065] In some or certain embodiments, the high temperature resistant clamping member 53 may include a rod 531, a mounting portion 532 and a high temperature resistant portion. One end of the rod 531 is screwed to the pressure head 522, and the other end of the rod 531 is fixedly connected to the mounting portion 532. The mounting portion 532 is in the shape of a box with an open side. The high temperature resistant portion may be a vinyl chloride nylon block. The high temperature resistant portion is embedded in the mounting portion 532 and is fixed to the mounting portion 532 by bolts or the like. The portion of the high temperature resistant portion protruding from the mounting portion 532 is configured as the clamping portion 51.

[0066] In some or certain embodiments, the pressing assembly 5 may also include a telescopic motor or a telescopic cylinder, the base of which may be detachably connected to the crossbeam 41 of the portal frame 4, and the telescopic end of the telescopic motor and the end of the telescopic cylinder may also be configured as a pressing portion 51. This can also achieve compression of workpieces such as corrugated plates.

[0067] In some or certain embodiments, the portal frame 4 is further provided with two vertical plates 42 respectively connected to the two ends of the beam 41, and two connecting blocks 43 correspondingly connecting the two vertical plates 42. The welding support member 3 is located between the two connecting blocks 43 and is connected to each connecting block 43 through a mortise and tenon structure.

[0068] The two vertical plates 42 of the portal frame 4 connect the crossbeam 41 and the two connecting blocks 43. This structure reduces the weight of the portal frame 4, facilitating stable operation of the welding training device. The welding support 3 is located between the two connecting blocks 43 and is connected to each connecting block 43 via a mortise and tenon joint, facilitating assembly, disassembly, and replacement of the portal frame 4 and welding support 3. The corrugated sheet metal on the welding support 3 undergoes high-temperature welding, and the temperature of the corrugated sheet metal also affects the welding support 3. The mortise and tenon joint also facilitates replacement of the welding support 3.

[0069] In some or certain embodiments, the mortise and tenon structure includes a connecting through-slot 431 provided on the connecting block 43 , and a passing portion provided on the welding support 3 and used to pass through the corresponding connecting through-slot 431 .

[0070] The two connecting blocks 43 can cooperate through the connecting grooves 431 to clamp the welding support 3 between the two connecting blocks 43. The position of the welding support 3 is relatively stable and easy to disassemble and assemble. The strength of the welding support 3 and the portal frame 4 is also good.

[0071] In some or certain embodiments, the portal frame 4 may also include columns connected to both ends of the crossbeam 41, one end of the column being fixedly connected to one end of the crossbeam 41, and the other end of the crossbeam 41 being detachably connected to the welding support 3 via fasteners, etc. This also allows for quick replacement of the welding support 3 and the portal frame 4.

[0072] Figure 4A schematic structural diagram of a welding support member in some embodiments or certain embodiments of the present application is shown. Figure 5 A side view of a welding support member in some embodiments or certain embodiments of the present application is shown, with reference to Figure 4 、 5 In some or certain embodiments, the welding support 3 may include:

[0073] The plate-shaped body 31 is connected to the portal frame 4, and one plate surface is configured as a welding support surface.

[0074] The cylindrical portion 32 is connected to the other plate surface of the plate-shaped body 31 and is also connected to the connecting portion 23 .

[0075] The welding support 3 adopts the above structure. The welding support 3 has a simple structure and is relatively lightweight. The cylindrical portion 32 is also convenient for connection with the connecting portion 23 in the connecting assembly 2.

[0076] In some or certain embodiments, the connecting portion 23 is cylindrical and slidably fits within the cylindrical portion 32. The connecting assembly 2 further includes a first fastener 27 threaded through the connecting portion 23 and with one end abutting against the cylindrical portion 32. This allows the cylindrical portion 32 of the welding support 3 to rotate relative to the connecting portion 23 and adjust its position relative to the connecting portion 23 in the axial direction. Once adjusted, the first fastener 27 presses against the cylindrical portion 32 to position the cylindrical portion 32 relative to the connecting portion 23. Based on the support column 1, the position of the welding support 3 relative to the connecting assembly 2 can also be adjusted. This allows for adaptability to welders of varying heights and allows for rotation of the welding support 3 to accommodate varying spaces, resulting in greater welding flexibility.

[0077] In some or certain embodiments, one end of the cylindrical portion 32 may be fixedly connected to the other surface of the plate-shaped body 31, while the other end of the cylindrical portion 32 extends through the cylindrical connecting portion 23. The first fastener 27 may be a bolt or stud. The first fastener 27 can be rotated relative to the connecting portion 23 to move closer to or further away from the cylindrical portion 32. When the first fastener 27 moves away from the cylindrical portion 32, the cylindrical portion 32 can rotate or extend relative to the connecting portion 23. Once adjusted to the desired position, the first fastener 27 can be rotated to tighten against the cylindrical portion 32. This provides flexible operation and high versatility.

[0078] In some or certain embodiments, the welding support member 3 may be a plate with protrusions, or a block, and may be detachably connected to the connecting portion 23. This can also play a role in properly positioning the corrugated plate.

[0079] Figure 6 FIG1 shows an assembly diagram of a connection assembly and a support column in some embodiments or certain embodiments of the present application, with reference to FIG1 . Figure 6 In some or certain embodiments, the connection component 2 includes:

[0080] The adjusting cylinder is coaxially and slidably sleeved on the supporting column 1 . The adjusting cylinder is configured as an adjusting portion 21 . The positioning member 22 is a fastener that is threaded through the adjusting cylinder and has one end abutting against the supporting column 1 .

[0081] One end of the first transition tube 24 is fixed to the outer peripheral wall of the regulating tube.

[0082] One end of the second transition tube 25 is plugged into the first transition tube 24 , and the other end is fixedly connected to the connecting portion 23 .

[0083] The adjusting member, configured as the adjusting portion 21, is sleeved onto the support column 1. The adjusting portion 21 is threadedly engaged with the positioning member 22, and one end of the positioning member 22 can abut against the support column 1, adjusting the relative position of the adjusting portion 21 and the support column 1. The relative position adjustment between the adjusting portion 21 and the support column 1 can be referred to the aforementioned position adjustment between the connecting portion 23 and the cylindrical portion 32, and will not be further described here. A first transition tube 24, one end of which is fixed to the outer circumferential wall of the adjusting portion, extends radially along the support column 1 to provide space for the installation of a second transition tube 25, which in turn provides support for the connecting portion 23.

[0084] In some or certain embodiments, the second transition tube 25 rotatably passes through the first transition tube 24. The connection assembly 2 further includes a rotatable fastener 26 threaded through the first transition tube 24 and abutting against the second transition tube 25 at one end. This allows the second transition tube 25 to rotate relative to the first transition tube 24. After the second transition tube 25 is positioned relative to the first transition tube 24, the second transition tube 25 and the first transition tube 24 are then positioned relative to each other using a rotatable fastener. Adjustment of the position of the second transition tube 25 relative to the first transition tube 24 can be analogous to the adjustment of the position of the cylindrical portion 32 and the connecting portion 23 described above, and will not be further described here. This structure allows the welding support 3 to have a certain degree of freedom in the axial direction of the support column 1. When the support column 1 is vertically arranged, the position of the connection assembly 2 relative to the support column 1 can be adjusted to achieve the purpose of adjusting the height of the welding support 3. The second transition tube 25 in the connection assembly 2 rotates relative to the first transition tube 24 to adjust the welding support 3 to either an overhead or downward welding angle. When the cylindrical portion 32 can rotate relative to the connecting portion 23, the horizontal angle of the welding support 3 can also be adjusted. The welding training device has good versatility and can be used to practice welding at different angles.

[0085] In some or certain embodiments, a polygonal protrusion may be provided at one end of the second transition tube 25, and the inner hole of the first transition tube 24 may be provided as a polygonal inner hole that matches the polygonal protrusion, so as to facilitate the connection and positioning of the first transition tube 24 and the second transition tube 25.

[0086] In some or certain embodiments, the connection assembly 2 may include only an adjustment member. The cylindrical portion 32 in the welding support member 3 may be a tapered cylinder, and the smaller diameter of the tapered cylinder may pass through the circumferential wall of the second transition cylinder 25. This also allows the welding support member 3 to rotate relative to the adjustment member. Multiple insertion holes may also be spaced apart axially along the support column 1, extending radially through the support column 1. The positioning member 22 may be a positioning post that sequentially passes through the adjustment portion 21 and the insertion holes. When the positioning post passes through insertion holes at different heights, the height of the connection assembly 2 and the welding support member 3 can be adjusted accordingly.

[0087] Figure 7 shows an assembly diagram of a metal heat sink and a welding support member in some embodiments or certain embodiments of the present application, Figure 8 A side view of a metal heat sink in some embodiments or certain embodiments of the present application is shown, with reference to Figure 7 、 8 In some or certain embodiments, the welding practice device may further include:

[0088] The metal heat dissipation plate 6 is embedded in the welding support 3 and the surface with the largest area is flush with the welding support surface.

[0089] The metal heat dissipation plate 6 can dissipate heat and extend the service life of the welding support 3 .

[0090] In some or certain embodiments, the welding support 3 can be a wooden welding support 3, the portal frame 4 can be a wooden portal frame 4, and the metal heat sink 6 is embedded in the welding support 3, with the largest surface of the metal heat sink 6 flush with the welding support surface. The metal heat sink 6 can be opposite the pressing portion 51 of the pressing assembly 5. This provides a good heat dissipation effect, and this overall arrangement is lightweight, low in manufacturing cost, and easy to replace.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0092] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually 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 this application.

[0093] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A welding training device, characterized in that: include: Support columns; a connecting assembly comprising an adjusting portion, a positioning member, and a connecting portion spaced apart from the adjusting portion, wherein the adjusting portion is movably disposed on the support column along the axial direction of the support column, and the positioning member is used to position the adjusting portion and the support column; a welding support member connected to the connecting portion and having a welding support surface on a side away from the connecting portion; a portal frame connected to the welding support and provided with a crossbeam opposite to the welding support surface; At least two pressing assemblies are connected to the cross beam at intervals, and the pressing assemblies are provided with a pressing portion which can move back and forth to approach or move away from the welding support surface.

2. The welding training device according to claim 1, characterized in that: The pressing portion is provided with a V-shaped pressing groove.

3. The welding training device according to claim 1, characterized in that: The pressing assembly comprises: A clamp comprising a base fixedly connected to the crossbeam, and a pressure head reciprocatingly movable relative to the base; A high temperature resistant pressing piece is screwed to the pressing head and a side thereof facing the welding support surface is configured as the pressing portion.

4. The welding training device according to any one of claims 1 to 3, characterized in that: The portal frame is further provided with two vertical plates respectively connected to the two ends of the crossbeam, and two connecting blocks correspondingly connected to the two vertical plates. The welding support is located between the two connecting blocks and is connected to each of the connecting blocks through a mortise and tenon structure.

5. The welding training device according to claim 4, characterized in that: The mortise and tenon structure includes a connecting groove provided on the connecting block and a passing portion provided on the welding support and used to pass through the corresponding connecting groove.

6. The welding training device according to any one of claims 1 to 3, characterized in that: The welding support comprises: A plate-shaped body connected to the portal frame, with one plate surface configured as the welding support surface; The cylindrical portion is connected to the other plate surface of the plate-shaped body and is connected to the connecting portion.

7. The welding training device according to claim 6, characterized in that: The connecting portion is cylindrical and is slidably sleeved on the cylindrical portion. The connecting assembly further comprises a first fastener which is threaded through the connecting portion and has one end abutting against the cylindrical portion.

8. The welding training device according to any one of claims 1 to 3, characterized in that: The connection component includes: an adjusting cylinder coaxially and slidably sleeved on the supporting column, the adjusting cylinder being configured as the adjusting portion, and the positioning member being a fastener threaded through the adjusting cylinder and having one end abutting against the supporting column; A first transition tube, one end of which is fixed to the outer peripheral wall of the adjustment tube; The second transition tube has one end plugged into the first transition tube and the other end fixedly connected to the connecting portion.

9. The welding training device according to claim 8, characterized in that: The second transition cylinder is rotatably passed through the first transition cylinder, and the connection assembly further includes a rotation fastener threadedly passed through the first transition cylinder and with one end abutting against the second transition cylinder.

10. The welding training device according to any one of claims 1 to 3, characterized in that: The welding practice device also includes: A metal heat dissipation plate is embedded in the welding support and the surface with the largest area is flush with the welding support surface.

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