A truss welding device

Abstract

The present invention relates to the technical field of truss processing equipment, and particularly relates to a truss welding device. The truss includes a frame body and a connecting member. The frame body includes an upper chord bar, web bars, and two lower chord bars. The upper chord bar is connected to each of the lower chord bars through the web bars. The truss welding device includes: a support table for supporting the frame body; a welding mechanism including a welding table, a welding head disposed above the welding table, and a lifting assembly connected to the welding head. The welding table is located below the lower chord bar and is used to support the connecting member. The lifting assembly is used to drive the welding head to press the lower chord bar against the connecting member downward and weld them in place; two feeding mechanisms are respectively disposed on opposite sides of the welding table, and the feeding mechanism is used to sequentially convey the connecting members onto the welding table. This truss welding device can achieve automatic feeding and welding, saving labor costs and improving welding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of truss processing equipment, and in particular to a truss welding equipment. Background Art

[0002] A triangular truss includes an upper chord bar and two lower chord bars. Each upper chord bar and each lower chord bar are welded together by a web bar bent into a wavy shape at the wavy points, so that the cross-section of the truss is triangular.

[0003] In the existing detachable trusses, generally, manual use of movable fasteners (with screw holes at the bottom) is used to clamp the lower chord bars, and the bottom of the movable fasteners is fixed to the wooden formwork with fasteners. After pouring is completed, the wooden formwork is removed so that the wooden formwork can be reused to save costs. However, the movable fasteners need to be installed manually, resulting in high labor costs and low efficiency.

[0004] Some detachable trusses weld an independent connecting piece at the bottom of the lower chord bar. The bottom of the connecting piece has screw holes for fixing to the wooden formwork, but the connecting piece needs to be manually loaded, which is time-consuming and laborious. Summary of the Invention

[0005] The purpose of the present invention is to provide a truss welding equipment, which can realize the automatic feeding and welding of the connecting pieces, reduce labor costs and improve processing efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A truss welding equipment, the truss includes a frame body and a connecting piece. The frame body includes an upper chord bar, a web bar and two lower chord bars. Each upper chord bar and each lower chord bar are connected by the web bar. The truss welding equipment includes:

[0008] A support table for supporting the frame body;

[0009] A welding mechanism, including a welding table, a welding head arranged above the welding table and a lifting component connected to the welding head. The welding table is located below the lower chord bar and is used to support the connecting piece. The lifting component is used to drive the welding head to press the lower chord bar against the connecting piece downward and weld and fix them;

[0010] Two feeding mechanisms are respectively arranged on opposite sides of the welding table. The feeding mechanism is used to sequentially convey the connecting pieces onto the welding table.

[0011] Wherein, a limiting convex block protrudes from the center of the welding table. The two feeding mechanisms are located on opposite sides of the limiting convex block, and can respectively place the connecting pieces on the welding table and abut against the corresponding sides of the limiting convex block.

[0012] Among them, the number of the welding heads is two, and they are respectively located on the opposite sides of the limiting bump, and each of the welding heads is respectively connected with the lifting assembly.

[0013] Among them, the welding head includes an upper fixed electrode, the welding table includes a lower fixed electrode, and the upper fixed electrode and the lower fixed electrode can be electrically connected.

[0014] Among them, the tabletop of the welding table is lower than the tabletop of the support table, and the height difference between the tabletop of the welding table and the tabletop of the support table is equal to the height of the connecting piece.

[0015] Among them, the feeding mechanism includes:

[0016] A material storage and conveying assembly for storing the connecting pieces and capable of conveying the connecting pieces one by one;

[0017] A material guiding groove, the material guiding groove is communicated with the outlet of the material storage and conveying assembly, the material guiding groove is vertically arranged, and a material outlet is arranged at the bottom end of the material guiding groove;

[0018] A material receiving plate, which is arranged at the bottom end of the material guiding groove and extends to the welding table; and

[0019] A material pushing assembly, the material pushing assembly can push the connecting piece on the material receiving plate onto the welding table and block the material outlet.

[0020] Among them, the material pushing assembly includes:

[0021] A material pushing driving part;

[0022] A material pushing plate, one end of the material pushing plate is connected with the material pushing driving part, and a material pushing groove is arranged at the other end of the material pushing plate, and the connecting piece can be placed in the material pushing groove.

[0023] Among them, the material storage and conveying assembly includes a vibrating screening machine and a linear feeder, the outlet of the vibrating screening machine is connected with the inlet of the linear feeder, and the outlet of the linear feeder is communicated with the material guiding groove.

[0024] Among them, the truss welding equipment further includes:

[0025] A pressing mechanism, which is arranged above the support table, and the pressing mechanism can press the frame body against the support table.

[0026] Among them, the support table includes a front support plate and a rear support plate which are arranged at intervals, the welding table is located between the front support plate and the rear support plate, the front support plate is higher than the rear support plate and the height difference is equal to the height of the connecting piece, the front support plate is used for supporting the frame body, and the rear support plate is used for supporting the truss.

[0027] Advantages of the present invention:

[0028] The truss welding equipment provided by the present invention can realize automatic feeding of connecting parts and automatic welding of connecting parts and the truss body, so as to save labor costs and improve welding efficiency. Description of the drawings

[0029] Figure 1 is the front view of the truss provided by the present invention;

[0030] Figure 2 is the top view of the truss provided by the present invention;

[0031] Figure 3 is the front view of the truss welding equipment provided by the present invention;

[0032] Figure 4 is the side view of the truss welding equipment provided by the present invention;

[0033] Figure 5 is the top view of the feeding mechanism provided by the present invention;

[0034] Figure 6 is the side view of the material guiding groove provided by the present invention;

[0035] Figure 7 is the top view of the pushing component provided by the present invention;

[0036] Figure 8 is the side view of a partial structure of the truss welding equipment provided by the present invention;

[0037] Figure 9 is the front view of a partial structure of the truss welding equipment provided by the present invention.

[0038] In the figure:

[0039] 100, Truss; 110, Frame body; 111, Upper chord bar; 112, Web bar; 113, Lower chord bar; 120, Connector; 1, Machine frame; 21, Front support plate; 22, Rear support plate; 3, Welding mechanism; 31, Welding table; 311, Lower fixed electrode; 312, Electrode fixing seat; 313, Fixing frame; 3111, Limiting bump; 32, Welding head; 33, Lifting assembly; 331, Lifting driving part; 332, Guide seat; 333, Guide post; 341, Upper conductive plate; 342, Conductive column; 343, Wire; 344, Lower conductive plate; 345, Insulating part; 346, Transformer; 4, Feeding mechanism; 41, Storage and conveying assembly; 411, Vibration screening machine; 412, Linear feeder; 4121, Guide groove; 42, Material guiding groove; 421, Top baffle; 422, U-shaped front shell; 423, U-shaped rear shell; 424, Limiting plate; 43, Material receiving plate; 44, Pushing assembly; 441, Pushing driving part; 442, Pushing plate; 4421, Pushing groove; 5, Pressing mechanism; 51, Mounting frame; 52, Pressing driving part; 53, Pressing head. Detailed implementation manners

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0041] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0043] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of description and simplifying operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] This embodiment provides a truss welding device for welding the truss 100. As Figure 1 and Figure 2 shown, the truss 100 includes a frame body 110 and a connecting member 120. The frame body 110 includes an upper chord 111, web members 112, and two lower chords 113. The upper chord 111 is located above the two lower chords 113. The web members 112 are wavy. The upper chord 111 is welded to each lower chord 113 through the web members 112, so that the cross-section of the frame body 110 is triangular. The connecting member 120 is welded and fixed to the bottom of the lower chord 113 for fixing to the wooden formwork. In this embodiment, a plurality of connecting members 120 are arranged at intervals along the length direction at the bottom of each lower chord 113, and the connecting members 120 on both sides are arranged at intervals along the arrangement direction of the two lower chords 113, which facilitates the stacking of multiple trusses 100 up and down, saving a large amount of placement space.

[0045] The truss welding device in this embodiment is used for welding the frame body 110 and the connecting member 120. As Figure 3 and Figure 4 shown, the truss welding device includes a support table, a welding mechanism 3, and two feeding mechanisms 4. The support table is used to place the frame body 110. The welding mechanism 3 includes a welding table 31, a welding head 32 arranged above the welding table 31, and a lifting assembly 33 connected to the welding head 32. The welding table 31 is located below the lower chord 113 and is used to support the connecting member 120. The two feeding mechanisms 4 are respectively arranged on opposite sides of the welding table 31, and the feeding mechanism 4 is used to sequentially convey the connecting members 120 onto the welding table 31. The lifting assembly 33 is used to drive the welding head 32 to press the lower chord 113 against the connecting member 120 downward and weld and fix them, thereby realizing the automatic welding of the frame body 110 and the connecting member 120.

[0046] In this embodiment, through the cooperation of the support table, the welding table 31, and the two feeding mechanisms 4, the automatic feeding of the connecting member 120 and the automatic welding of the connecting member 120 and the frame body 110 can be realized, which can reduce labor costs and improve processing efficiency. Since the connecting members 120 corresponding to the two lower chords 113 are arranged at intervals, it is convenient for multiple trusses 100 to be stacked up and down. The upper chord 111 of the truss 100 located below can be located between the two lower chords 113 of the truss 100 above, thus saving the placement space of multiple trusses 100.

[0047] In this embodiment, the truss welding device further includes a bracket, and the support table, the welding mechanism 3, and the two feeding mechanisms 4 are all arranged on the bracket to improve the modularization degree of the truss welding device.

[0048] Further, the support table includes a front support plate 21. The tabletop of the welding table 31 is lower than that of the front support plate 21, and the height difference between the tabletop of the welding table 31 and that of the front support plate 21 is equal to the height of the connecting member 120. The front support plate 21 is used to support the frame body 110. After the feeding mechanism 4 sends the connecting member 120 to the welding table 31, the top of the connecting member 120 can abut against the frame body 110 to facilitate the welding of the connecting member 120 and the frame body 110.

[0049] Optionally, the support table further includes a rear support plate 22. The front support plate 21 and the rear support plate 22 are arranged at intervals. The welding table 31 is located between the front support plate 21 and the rear support plate 22, and the front support plate 21 is higher than the rear support plate 22 and the height difference is equal to the height of the connecting member 120. The frame body 110 extends along the arrangement direction of the front support plate 21 and the rear support plate 22, that is Figure 3 in the X direction in the figure. The part of the frame body 110 where the connecting member 120 is not welded is located on the front support plate 21, and the part of the frame body 110 where the connecting member 120 is welded is located on the rear support plate 22, which helps to improve the stability of the frame body 110 and the truss 100.

[0050] During the working process of the truss welding device, the frame body 110 is intermittently conveyed in the X direction. When the welding mechanism 3 welds the connecting member 120 on the welding table 31 to the frame body 110, the frame body 110 is conveyed a specified distance in the X direction, and the feeding mechanism 4 conveys the connecting member 120 to the welding table 31 for the next welding.

[0051] As Figure 4 shown, the number of welding heads 32 is two, and they are respectively located on both sides of the frame body 110 in the length direction. Each welding head 32 is respectively connected with a lifting component 33 so that the two welding heads 32 can respectively weld two lower chord bars 113 to improve the processing efficiency.

[0052] To improve the position accuracy of the two connecting members 120 on the welding table 31 so as to improve the welding effect between the lower chord bar 113 and the corresponding connecting member 120, as Figure 4 、 Figure 5 and Figure 8As shown, a limiting bump 3111 protrudes from the center of the welding table 31. The two feeding mechanisms 4 are respectively located on opposite sides of the limiting bump 3111, and can respectively convey the connecting pieces 120 onto the welding table 31 along the Y direction and the opposite direction of the Y direction, so that the connecting pieces 120 can abut against the corresponding sides of the limiting bump 3111, thereby realizing the positioning of the connecting pieces 120 on the welding table 31, which helps to ensure the welding effect between the connecting pieces 120 and the frame body 110.

[0053] In this embodiment, the feeding mechanism 4 includes a storage and conveying assembly 41, a guide chute 42, a receiving plate 43 and a pushing assembly 44. The storage and conveying assembly 41 is used to store the connecting pieces 120. The outlet of the storage and conveying assembly 41 is communicated with the guide chute 42, and can convey the connecting pieces 120 one by one, so that the connecting pieces 120 can enter the guide chute 42 one by one. The guide chute 42 is vertically arranged, and a discharge port is arranged at the bottom end of the guide chute 42. The connecting pieces 120 entering the guide chute 42 are stacked vertically and can be conveyed to the discharge port one by one under the action of gravity. The receiving plate 43 is arranged at the bottom end of the guide chute 42 and extends to the welding table 31. The pushing assembly 44 is used to push the connecting pieces 120 falling on the receiving plate 43 onto the welding table 31 and block the discharge port.

[0054] When the feeding mechanism 4 works, the connecting pieces 120 enter the guide chute 42 one by one under the action of the storage and conveying assembly 41. The connecting piece 120 at the bottom of the guide chute 42 falls onto the receiving plate 43 and is pushed onto the welding table 31 by the pushing assembly 44. During the process of the pushing assembly 44 pushing the connecting piece 120 onto the welding table 31, the pushing assembly 44 blocks the discharge port to prevent the connecting piece 120 at the bottom layer in the guide chute 42 from falling, thereby realizing the one-by-one conveying of the connecting pieces 120. When the pushing assembly 44 resets, the pushing assembly 44 no longer blocks the discharge port, and the connecting piece 120 at the bottom of the guide chute 42 will fall onto the receiving plate 43 under the action of gravity for the next welding use. In this embodiment, the two pushing assemblies respectively push the connecting pieces 120 along the Y direction and the opposite direction of the Y direction.

[0055] In this embodiment, the top surface of the receiving plate 43 is flush with the welding table 31 to facilitate the pushing assembly 44 to smoothly push the connecting pieces 120 on the receiving plate 43 onto the welding table 31.

[0056] In some embodiments, the receiving plate 43 can extend obliquely downward from below the discharge port to the welding table 31 to facilitate the pushing assembly 44 to smoothly push the connecting pieces 120 on the receiving plate 43 onto the welding table 31.

[0057] In some embodiments, rolling bodies are rotatably arranged on the receiving plate 43. By the rolling contact between the rolling bodies and the connecting pieces 120, the resistance received when pushing the connecting pieces 120 is reduced to facilitate the conveying of the connecting pieces 120.

[0058] In this embodiment, as Figure 4 and Figure 5 shown, the storage and conveying assembly 41 includes a vibrating screening machine 411 and a linear feeder 412. The vibrating screening machine 411 includes a bin and a vibrating assembly. The bin is used to store the connecting members 120. The outlet of the bin is connected to the inlet of the linear feeder 412. The vibrating assembly can separate the connecting members 120 in the bin by vibration and output them one by one. The outlet of the linear feeder 412 communicates with the guiding chute 42. The linear feeder 412 can realize the linear conveying of the connecting members 120, so that a plurality of connecting members 120 are linearly arranged and enter the guiding chute 42 one by one.

[0059] It should be noted that both the vibrating screening machine 411 and the linear feeder 412 are existing mature technologies. Any vibrating screening machine and linear feeder can be adopted in this embodiment, as long as the connecting members 120 can enter the guiding chute 42 one by one.

[0060] Furthermore, in order to ensure that the connecting members 120 smoothly enter the guiding chute 42, a guiding groove 4121 is provided on the linear feeder 412. One end of the guiding groove 4121 communicates with the guiding chute 42. The shape and size of the guiding groove 4121 are adapted to the connecting members 120 to improve the conveying accuracy of the connecting members 120.

[0061] In order to prevent the position of the connecting members 120 from deviating when they fall in the guiding chute 42, one side wall of the guiding groove 4121 is flush with the corresponding side wall of the guiding chute 42, so that the connecting members 120 can slide down along this side wall of the guiding chute 42 to ensure the falling position of the connecting members 120.

[0062] As Figure 6 shown, the guiding chute 42 includes a U-shaped front shell 422, a U-shaped rear shell 423 and a limiting plate 424. The U-shaped front shell 422 and the U-shaped rear shell 423 enclose an annular cavity for guiding materials. The limiting plate 424 is located in the cavity and at the opening of the U-shaped front shell 422. The connecting members 120 entering the cavity are located between the limiting plate 424 and the U-shaped front shell 422. The connecting members 120 can slide down along the limiting plate 424 to ensure the falling position.

[0063] Specifically, the bottom end of the guiding chute 42 is spaced from the receiving plate 43, so that the pushing end of the pushing assembly can enter and exit between the bottom end of the guiding chute 42 and the receiving plate 43 to push the connecting members 120.

[0064] Further, a limiting groove is provided on the side wall of the bottom end of the material guiding groove 42 facing the welding table 31. The shape of the limiting groove is adapted to the connecting member 120. The distance between the bottom of the limiting groove and the material receiving plate 43 is equal to the height of the connecting member 120. The top end of the connecting member 120 exits the material guiding groove 42 through the limiting groove to improve the feeding position accuracy of the connecting member 120.

[0065] The material guiding groove 42 further includes a top baffle 421. The top baffle 421 is connected to the U-shaped front shell 422, and the limiting plate 424 is connected to the top baffle 421 to facilitate the fixing of the limiting plate 424. An observation window is provided on the limiting plate 424 for observing the conveying condition of the connecting member 120 in the material guiding groove 42.

[0066] Optionally, the cross-section of the material receiving plate 43 is U-shaped. The material receiving plate 43 is sleeved on the bottom end of the material guiding groove 42 and fixed to the material guiding groove 42 through fasteners to facilitate the disassembly and assembly of the material receiving plate 43 and the material guiding groove 42.

[0067] As Figure 7 shown, the material pushing assembly 44 includes a material pushing driving member 441 and a material pushing plate 442. One end of the material pushing plate 442 is connected to the material pushing driving member 441, and the other end of the material pushing plate 442 is used to push the connecting member 120. Further, in order to ensure that the position of the connecting member 120 does not shift during the material pushing process, a material pushing groove 4421 is provided on the material pushing plate 442. When the material pushing plate 442 pushes the connecting member 120, the connecting member 120 is placed in the material pushing groove 4421 to limit the position of the connecting member 120.

[0068] As Figure 8 shown, the welding head 32 includes an upper fixed electrode. The welding table 31 includes a lower fixed electrode 311, an electrode fixing seat 312, and a fixing frame 313. The upper fixed electrode can abut against the lower chord 113. The fixing frame 313 is arranged on the frame 1, the electrode fixing seat 312 is arranged on the fixing frame 313, the lower fixed electrode 311 is arranged on the electrode fixing seat 312, and the connecting member 120 is placed on the lower fixed electrode 311. The upper fixed electrode and the lower fixed electrode 311 can be electrically connected to realize the welding of the lower chord 113 and the connecting member 120.

[0069] Specifically, the welding mechanism 3 further includes a conductive component for energizing the upper fixed electrode and the lower fixed electrode 311. The conductive component includes a transformer 346, an upper conductive plate 341, a conductive column 342, and an insulating base. The insulating base is disposed at the output end of the lifting component 33. The upper conductive plate 341 is disposed on the insulating base and is connected to the upper fixed electrode through the conductive column 342. The upper conductive plate 341 is connected to the transformer 346 through a wire 343. The conductive component further includes a lower conductive plate 344 and an insulating member 345. The lower conductive plate 344 is disposed on the electrode fixing base 312 through the insulating member 345. The lower fixed electrode 311 is disposed on the lower conductive plate 344. The lower conductive plate 344 is connected to the transformer 346 through a wire 343.

[0070] In this embodiment, transformers 346 are disposed on both opposite sides of the welding table 31 to facilitate connection with the upper conductive plate 341 and the lower conductive plate 344 on the corresponding side, thereby simplifying the layout of the wires 343.

[0071] In this embodiment, the lifting component 33 includes a lifting driving member 331, a guiding seat 332, and a guiding column 333. The lifting driving member 331 and the guiding seat 332 are both disposed on the frame 1. The output end of the lifting driving member 331 is connected to the guiding column 333. The guiding column 333 is slidably disposed through the guiding seat 332 and is connected to the upper conductive plate 341. Through the cooperation of the guiding seat 332 and the guiding column 333, the lifting of the welding head 32 can be guided to ensure the welding accuracy.

[0072] As Figure 9 shown, the truss welding equipment further includes a pressing mechanism 5. The pressing mechanism 5 is disposed above the support table. The pressing mechanism 5 can press the frame 110 against the support table to prevent the frame 110 from moving during the welding process, which is beneficial to improving the welding quality.

[0073] Specifically, the pressing mechanism 5 includes a mounting frame 51, a pressing driving member 52, and a pressing head 53. The mounting frame 51 is disposed on the frame 1. The pressing driving member 52 is disposed on the mounting frame 51. The pressing head 53 is disposed at the output end of the pressing driving member 52. The pressing head 53 can be lifted and lowered under the drive of the pressing driving member 52 to tightly press the frame 110 downward or lift it.

[0074] Optionally, the pressing head 53 has a pressing surface adapted to the upper end of the frame 110 to increase the contact area with the frame 110, which helps to improve the stability of the frame 110 during pressing.

[0075] Optionally, the pressing driving member 52, the lifting driving member 331, and the pushing driving member 441 can all be cylinders, hydraulic cylinders, linear motors, etc., as long as they can output linear motion.

[0076] By using the truss welding equipment provided in this embodiment, automatic feeding of the connecting member 120 and automatic welding of the connecting member 120 to the frame body 110 can be achieved, thereby reducing labor costs and improving production efficiency. After the truss 100 is welded, threaded holes are processed on the connecting member 120, which can achieve accurate connection with the wooden formwork and is convenient for disassembly and assembly.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A truss welding device, characterized in that, The truss (100) includes a frame body (110) and a connecting member (120). The frame body (110) includes an upper chord bar (111), web bars (112), and two lower chord bars (113). The upper chord bar (111) is connected to each of the lower chord bars (113) through the web bars (112). The truss welding equipment includes: A support table for supporting the frame body (110); A welding mechanism (3), including a welding table (31), a welding head (32) disposed above the welding table (31), and a lifting assembly (33) connected to the welding head (32). The welding table (31) is located below the lower chord bar (113) and is used to support the connecting member (120). The lifting assembly (33) is used to drive the welding head (32) downward to press the lower chord bar (113) against the connecting member (120) and weld them in place; Two feeding mechanisms (4) respectively disposed on opposite sides of the welding table (31). The feeding mechanism (4) is used to sequentially feed the connecting members (120) onto the welding table (31); A limiting bump (3111) protrudes from the center of the welding table (31). The two feeding mechanisms (4) are located on opposite sides of the limiting bump (3111) and can respectively place the connecting member (120) on the welding table (31) and abut against the corresponding side of the limiting bump (3111); The support table includes a front support plate (21) and a rear support plate (22) disposed at intervals. The welding table (31) is located between the front support plate (21) and the rear support plate (22). The surface of the welding table (31) is lower than the surface of the front support plate (21). The height difference between the surface of the welding table (31) and the surface of the front support plate (21) is equal to the height of the connecting member (120). The front support plate (21) is higher than the rear support plate (22) and the height difference is equal to the height of the connecting member (120). The front support plate (21) is used to support the frame body (110), and the rear support plate (22) is used to support the truss (100).

2. The truss welding equipment according to claim 1, characterized in that, The number of the welding heads (32) is two, and they are respectively located on opposite sides of the limiting bump (3111). Each welding head (32) is respectively connected to the lifting assembly (33).

3. The truss welding equipment according to claim 1, characterized in that The welding head (32) includes an upper fixed electrode, and the welding table (31) includes a lower fixed electrode (311). The upper fixed electrode and the lower fixed electrode (311) can be electrically connected.

4. The truss welding equipment according to claim 1, characterized in that The surface of the welding table (31) is lower than the surface of the support table. The height difference between the surface of the welding table (31) and the surface of the support table is equal to the height of the connecting member (120).

5. The truss welding equipment according to any one of claims 1-4, characterized in that, The feeding mechanism (4) includes: A storage and conveying assembly (41) for storing the connecting members (120) and capable of sequentially conveying the connecting members (120); A material guiding trough (42), the material guiding trough (42) is communicated with the outlet of the material storage and conveying assembly (41), the material guiding trough (42) is vertically arranged, and a discharge port is arranged at the bottom end of the material guiding trough (42); A material receiving plate (43), which is arranged at the bottom end of the material guiding trough (42) and extends to the welding table (31); and A material pushing assembly (44), the material pushing assembly (44) can push the connecting piece (120) on the material receiving plate (43) onto the welding table (31) and block the discharge port.

6. The truss welding equipment according to claim 5, wherein, The material pushing assembly (44) includes: A material pushing driving part (441); A material pushing plate (442), one end of the material pushing plate (442) is connected with the material pushing driving part (441), and a material pushing groove (4421) is arranged at the other end of the material pushing plate (442), and the connecting piece (120) can be placed in the material pushing groove (4421).

7. The truss welding equipment according to claim 5, characterized in that, The material storage and conveying assembly (41) includes a vibrating screening machine (411) and a linear feeder (412), the outlet of the vibrating screening machine (411) is connected with the inlet of the linear feeder (412), and the outlet of the linear feeder (412) is communicated with the material guiding trough (42).

8. The truss welding equipment according to any one of claims 1-4, characterized in that, The truss welding equipment further includes: A downward pressing mechanism (5), which is arranged above the support table, and the downward pressing mechanism (5) can press the frame body (110) towards the support table.

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