CN217344441U

CN217344441U - Steel pipe truss welding production line

Info

Publication number: CN217344441U
Application number: CN202220889537.8U
Authority: CN
Inventors: 陈振东; 其他发明人请求不公开姓名
Original assignee: TJK Machinery Tianjin Co Ltd
Current assignee: TJK Machinery Tianjin Co Ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-09-02
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a steel pipe truss welding production line, this steel pipe truss welding production line includes the web member muscle pay-off that the first direction set gradually, steel pipe loading attachment, web member muscle alignment bending device, steel pipe transport presss from both sides tight step device, steel pipe truss welding set, steel pipe truss step-by-step clamping device, the device is widened in the plastic, steel pipe truss cutting device and finished product collection device, web member muscle pay-off and web member muscle alignment bending device are used for realizing the release and the alignment of web member muscle and bend, steel pipe loading attachment and steel pipe transport press from both sides tight step device and are used for realizing that the steel pipe is one by one blanking and sizing transport, steel pipe truss welding set is used for welding steel pipe and web member muscle to form the steel pipe truss, steel pipe truss step-by-step clamping device, the device is widened in the plastic, steel pipe truss cutting device and finished product collection device are used for realizing the transport of steel pipe truss respectively, Shaping, cutting and collecting. The steel pipe truss welding production line is high in automation degree, production efficiency and finished product quality.

Description

Steel pipe truss welding production line

Technical Field

The utility model relates to a steel pipe truss production technical field especially relates to a steel pipe truss welding production line.

Background

The steel pipe truss is the most widely applied structural member in the fabricated building, is an important component of the fabricated building, and is widely applied to prestressed concrete steel pipe truss composite slabs. The steel pipe truss comprises a steel pipe and two web member ribs bent into waves, the steel pipe and the two web member ribs are welded together, and the welding position is the wave point position welded by the web member ribs.

At present, equipment for producing the steel pipe truss can only complete partial working procedures when the steel pipe truss is processed, and a plurality of working procedures need to be completed by means of manual work, such as manual feeding, manual welding and the like. The automation degree of the existing equipment is low, the production efficiency is low, and the quality of finished products cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel pipe truss welding production line, this steel pipe truss welding production line automation degree is high, has improved the production efficiency of steel pipe truss, has guaranteed the finished product quality of steel pipe truss.

To achieve the purpose, the utility model adopts the following technical proposal:

a steel pipe truss welding production line comprises a web member rib pay-off device, a steel pipe feeding device, a web member rib straightening and bending device, a steel pipe conveying, clamping and stepping device, a steel pipe truss welding device, a steel pipe truss stepping clamping device, a shaping and widening device, a steel pipe truss cutting device and a finished product collecting device which are sequentially arranged along a first direction; the number of the web member rib pay-off devices is two, and the two web member rib pay-off devices are respectively used for placing two coils of web member ribs and can rotationally release the web member ribs in a coil rod shape; the web bar straightening and bending device is used for carrying the web bar conveyed by the web bar paying-off device, and can straighten the web bar, bend the straightened web bar into a wavy shape and convey the bent web bar forward along the first direction by a preset distance which is equal to the pitch of the web bar; a plurality of steel pipes are stored on the steel pipe feeding device, and the steel pipe feeding device can realize blanking one by one; the steel pipe conveying and clamping stepping device is used for receiving the steel pipe conveyed by the steel pipe feeding device and conveying the steel pipe forward along the first direction for the preset distance; the steel pipe truss welding device is used for simultaneously receiving the two bent web bar ribs conveyed by the web bar straightening and bending device and the steel pipe conveyed by the steel pipe conveying and clamping stepping device, and respectively welding wave crests of the two web bar ribs on two sides of the steel pipe to form a steel pipe truss; the steel pipe truss stepping clamping device is used for receiving the steel pipe truss conveyed by the steel pipe truss welding device and conveying the steel pipe truss forwards along the first direction; the shaping and widening device is used for receiving the steel pipe truss conveyed by the steel pipe truss stepping and clamping device and adjusting the distance between the end parts of the two web bar ribs far away from the steel pipe; the steel pipe truss cutting device is used for receiving the steel pipe truss conveyed by the shaping widening device and cutting the steel pipe truss at a preset position of the steel pipe truss, and the finished product collecting device is used for collecting the cut steel pipe truss.

Preferably, the web member bar pay-off device comprises a pay-off turntable and a pay-off motor, the web member bar is wound on the pay-off turntable in a wire rod shape, and the pay-off motor is used for driving the pay-off turntable to rotate so as to release the web member bar.

Preferably, the web bar straightening and bending device comprises a straightening mechanism and a bending mechanism; the straightening mechanism comprises a group of web bar straightening parts, two web bars are straightened and conveyed by the group of web bar straightening parts at the same time, the web bar straightening parts comprise two mutually perpendicular straightening plates, two rows of rollers arranged at intervals are arranged on the straightening plates, and the web bars can pass through the two rows of rollers; the bending mechanism comprises a web bar bending assembly and a web bar conveying assembly, the web bar bending assembly is used for carrying two web bars conveyed by the straightening mechanism and is used for simultaneously bending the two web bars into a wavy shape, and the web bar conveying assembly is used for conveying the bent web bars forwards.

Preferably, the web bar bending assembly comprises a bending driving assembly, and an upper bending swing arm and a lower bending swing arm which are arranged at intervals in a direction perpendicular to the first direction, and the bending driving assembly can drive the upper bending swing arm and the lower bending swing arm to swing so as to bend the web bar conveyed between the upper bending swing arm and the lower bending swing arm; the web member muscle conveying assembly comprises a conveying driving assembly, a driving gear disc, a driven gear disc, a chain and a conveying pin shaft, wherein the driving gear disc and the driven gear disc are perpendicular to each other in a first direction, the chain is wound on the driving gear disc and the driven gear disc, the conveying driving assembly can drive the driving gear disc to rotate, the conveying pin shaft is arranged on the chain, and the conveying pin shaft can stir the web member muscle bending part.

Preferably, the steel pipe feeding device comprises a feeding frame, a guide mechanism, a material ejecting mechanism, a blanking mechanism and a carrier roller mechanism; the feeding frame comprises a material storage platform, the material storage platform is used for storing a plurality of steel tubes, the material storage platform comprises a feeding end and a discharging end, and the height of the discharging end is lower than that of the feeding end; the guide mechanism comprises a guide pressing strip, the guide pressing strip is arranged above the material storage platform, and a guide channel for containing and guiding the steel pipes is formed between the guide pressing strip and the material storage platform; the ejection mechanism is arranged at the discharge end of the storage platform and comprises a driving structure and an ejection plate, the output end of the driving structure can lift along the vertical direction, the ejection plate is arranged at the output end of the driving structure, an ejection inclined plane is arranged at the top of the ejection plate, a material blocking surface is arranged on one side, close to the storage platform, of the ejection plate, the ejection inclined plane can jack the steel pipe at the discharge end when the ejection plate rises along the vertical direction, and the material blocking surface can block the next steel pipe which rolls to the discharge end; the blanking mechanism is arranged at the discharge end of the material storage platform and comprises a blanking baffle, a blanking inclined plane is arranged at the top of the blanking baffle and is arranged at a preset height, and the steel pipe on the material ejection inclined plane can roll onto the blanking inclined plane; the carrier roller mechanism is located on one side, far away from the feeding frame, of the blanking mechanism and comprises a carrier roller frame, a carrier roller groove is formed in the carrier roller frame, and the steel pipe on the blanking inclined plane can roll into the carrier roller groove.

Preferably, the steel pipe conveying and clamping stepping device comprises a conveying mechanism, a pressing mechanism, a clamping mechanism and a stepping mechanism, the conveying mechanism, the carrier roller mechanism, the pressing mechanism and the clamping mechanism are sequentially arranged at intervals along the first direction, the conveying mechanism is used for pushing the steel pipe to move from the carrier roller mechanism to the clamping mechanism, the pressing mechanism is used for pressing or loosening the steel pipe, the clamping mechanism is used for clamping the steel pipe, and the stepping mechanism is used for driving the clamping mechanism to move along the first direction by the preset distance.

Preferably, the steel pipe truss welding device comprises a welding compression assembly, an upper welding assembly and a steel pipe compression assembly which are sequentially arranged, the welding compression assembly can respectively compress the bent parts of the two web bar ribs on two opposite side surfaces of a compression seat, the steel pipe compression assembly can compress the steel pipe between the two web bar ribs, and the upper welding assembly can weld the steel pipe and the wave crests of the two web bar ribs.

Preferably, the steel pipe truss stepping clamping device comprises a stepping driving assembly, a stepping bottom plate and an upper clamping assembly, the stepping driving assembly is used for driving the stepping bottom plate to perform fixed-length feeding along the first direction, the upper clamping assembly is arranged on the stepping bottom plate, and the upper clamping assembly is used for clamping the connecting position of a steel pipe in the steel pipe truss and a web bar rib.

Preferably, the shaping widening device comprises a shaping driving body and a shaping die, the output end of the shaping driving body is arranged in a second direction perpendicular to the first direction, the shaping die is wedge-shaped, the large-size end of the shaping die is connected with the output end of the shaping driving body, the shaping die is located below the steel pipe truss and moves to the position between two web bar ribs of the steel pipe truss along the second direction, and therefore the distance between the end portions, far away from the steel pipes, of the web bar ribs is widened.

Preferably, the steel pipe truss cutting device comprises a cutting base, and a web bar cutting device and a steel pipe cutting device which are arranged at a set distance along the first direction, wherein the web bar cutting device and the steel pipe cutting device are both arranged on the cutting base; the web bar cutting device comprises a guide assembly for guiding the steel pipe truss to move along the first direction and a cutting assembly for synchronously cutting off the two web bars; the steel pipe cutting device comprises a positioning assembly for fixing the steel pipe and a cutting assembly for cutting the steel pipe.

Preferably, the finished product collecting device comprises a pulling mechanism, a turning mechanism, a sliding frame and a material receiving frame, the pulling mechanism can pull the cut steel pipe truss to the turning mechanism along the first direction, the sliding frame and the material receiving frame are sequentially arranged on the side of the turning mechanism, the turning mechanism can drive the steel pipe truss to turn over and enable the steel pipe truss to fall onto the sliding frame, and the steel pipe truss can slide to the material receiving frame along the sliding frame.

The utility model has the advantages that:

the utility model provides a steel pipe truss welding production line, this steel pipe truss welding production line includes the web member muscle pay-off that the first direction set gradually, steel pipe loading attachment, web member muscle alignment bending device, steel pipe transport clamping step device, steel pipe truss welding set, steel pipe truss step clamping device, the device is widened in the plastic, steel pipe truss cutting device and finished product collection device, web member muscle pay-off and web member muscle alignment bending device are used for realizing the release of web member muscle respectively, the alignment is bent, steel pipe loading attachment and steel pipe transport clamping step device are used for realizing the steel pipe respectively one by one blanking and the scale transport, steel pipe truss welding set is used for welding steel pipe and web member muscle to form the steel pipe truss, steel pipe truss step clamping device, the device is widened in the plastic, steel pipe truss cutting device and finished product collection device are used for realizing the transport of steel pipe truss respectively, Reshaping, cutting and collecting. The steel pipe truss welding production line is high in automation degree, and production efficiency and finished product quality of the steel pipe truss are improved.

Drawings

Fig. 1 is a front view of a steel pipe truss provided in an embodiment of the present invention;

fig. 2 is a side view of a steel pipe truss provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a steel pipe truss welding production line provided by an embodiment of the present invention;

fig. 4 is a front view of a steel pipe truss welding production line provided by an embodiment of the present invention;

fig. 5 is a top view of a steel pipe truss welding production line provided by an embodiment of the present invention;

fig. 6 is a schematic structural view of a web bar paying-off device according to an embodiment of the present invention;

fig. 7 is a front view of a steel tube feeding device provided by the embodiment of the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 7;

fig. 9 is a top view of a steel tube feeding device provided in the embodiment of the present invention;

fig. 10 is a side view of a steel tube feeding device provided in an embodiment of the present invention;

fig. 11 is a side view of a part of the structure of a steel pipe loading device according to an embodiment of the present invention when a steel pipe is just jacked;

fig. 12 is an enlarged view of portion B of fig. 11;

fig. 13 is a side view of a part of the structure of the steel tube feeding device according to the embodiment of the present invention when one of the steel tubes is dropped onto the dropping mechanism.

Fig. 14 is a schematic structural view of a web bar bending mechanism according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a bending driving assembly according to an embodiment of the present invention;

FIG. 16 is a cross-sectional view taken along the line E-E in FIG. 15;

fig. 17 is a partial schematic structural view of a web bar conveying assembly provided in an embodiment of the present invention;

fig. 18 is a front view of the steel pipe conveying, clamping and stepping device provided in the embodiment of the present invention;

fig. 19 is a top view of a steel pipe conveying, clamping and stepping device provided in an embodiment of the present invention;

fig. 20 is a schematic structural view of a conveying mechanism of the steel pipe conveying, clamping and stepping device provided in the embodiment of the present invention;

fig. 21 is a first schematic structural diagram of a pressing mechanism of the steel pipe conveying, clamping and stepping device provided in the embodiment of the present invention;

fig. 22 is a second schematic structural view of a pressing mechanism of the steel pipe conveying, clamping and stepping device provided in the embodiment of the present invention;

fig. 23 is a first schematic structural diagram of a clamping mechanism of the steel tube conveying, clamping and stepping device provided in the embodiment of the present invention;

fig. 24 is a second schematic structural view of a clamping mechanism of the steel tube conveying, clamping and stepping device provided in the embodiment of the present invention;

fig. 25 is a schematic structural view of a steel pipe truss welding device provided in an embodiment of the present invention;

FIG. 26 is a schematic structural view of an upper weld assembly provided in an embodiment of the present invention;

fig. 27 is a schematic structural view of a steel pipe pressing assembly provided in an embodiment of the present invention;

fig. 28 is a schematic structural view of a steel pipe truss stepping clamping device provided in an embodiment of the present invention;

fig. 29 is a front view of an upper clamp assembly provided in an embodiment of the present invention;

fig. 30 is a side view of an upper clamp assembly provided in an embodiment of the present invention;

fig. 31 is an isometric view of a shaping widening device provided in an embodiment of the present invention;

fig. 32 is a front view of a shaping widening device provided in an embodiment of the present invention;

fig. 33 is an isometric view of a steel pipe truss cutting apparatus provided in an embodiment of the present invention;

fig. 34 is a front view of the steel pipe truss cutting apparatus provided in the embodiment of the present invention;

fig. 35 is a left side view of the steel pipe truss cutting apparatus provided in the embodiment of the present invention;

fig. 36 is a right side view of the steel pipe truss cutting apparatus provided in the embodiment of the present invention;

fig. 37 is a plan view of a steel pipe truss cutting apparatus provided in an embodiment of the present invention;

fig. 38 is a partial schematic structural view of a cutting assembly of the steel pipe truss cutting apparatus according to the embodiment of the present invention;

fig. 39 is a schematic structural view of a cutting assembly of the steel pipe truss cutting apparatus according to the embodiment of the present invention;

FIG. 40 is an enlarged view at C of FIG. 33;

FIG. 41 is an enlarged view at D of FIG. 33;

fig. 42 is a schematic structural view of a finished product collecting device provided in an embodiment of the present invention.

In the figure:

101. web bar ribs; 102. a steel pipe;

1-1, a web member bar paying-off device; 1-11, a paying-off motor; 1-12, paying off rotary disc; 1-13, a guide wire piece; 1-14, a wire-passing beam;

2-1, a steel pipe feeding device; 2-100 parts of a feeding frame; 2-101, a material storage platform; 2-102, an alignment baffle; 2-103, a first fixed cross beam; 2-104, supporting vertical pipes; 2-105, supporting the horizontal tube; 2-200, a guide mechanism; 2-201, guiding and pressing strips; 2-202, a guide frame; 2-203 and a third vertical plate; 2-204, a first elongated hole; 2-205, a first connector; 2-300, a material ejecting mechanism; 2-301, a driving structure; 2-302, a material jacking plate; 2-3021, ejecting a material inclined plane; 2-3022, a material blocking surface; 2-303, a slide rail; 2-400, a blanking mechanism; 2-401, a blanking baffle; 2-4011, blanking inclined plane; 2-4012, a second elongated hole; 2-402, a second connector; 2-500, a roller mechanism; 2-501, a carrier roller plate; 2-502, a guide roller seat; 2-503, a guide roll shaft; 2-504, a guide rod; 2-505, a guide sleeve; 2-506, a guide bottom plate; 2-507, an adjusting rod; 2-508, adjusting nut;

3-1, straightening and bending the web member bar; 3-2, straightening mechanism; 3-3, a bending mechanism; 3-311, an upper bending swing arm; 3-312, bending the swing arm downwards; 3-313, a bending motor; 3-314, a small pulley; 3-315, a large belt wheel; 3-316, synchronous belt; 3-317 and gear shafts; 3-318, a gear plate; 3-319, swing link; 3-3110, a crank seat; 3-3111, an upper transmission connecting rod; 3-3112, an upper connecting arm; 3-3113, rotating the shaft; 3-3114, a lower transmission connecting rod; 3-3115, lower connecting arm; 3-3116, rotating shaft downwards; 3-3117, an upper swing arm locking plate; 3-3118, a lower swing arm locking plate; 3-321, a driving gear plate; 3-322, a driven gear disc; 3-323, chain; 3-324, conveying pin shafts; 3-325, driving gear shaft; 3-326, driven gear; 3-327, a driving turntable shaft;

4-1, conveying, clamping and stepping the steel pipe; 4-10, step support; 4-11, a first vertical plate; 4-12, a second vertical plate; 4-13, a second fixed cross beam; 4-14, support columns; 4-15, adjusting frame; 4-16, side rib frames; 4-2, a conveying mechanism; 4-21, a material pushing plate; 4-22, a material pushing slide rail; 4-23, a conveying driving mechanism; 4-231, a conveying motor; 4-232 parts of conveying driving wheel; 4-233, conveying driven wheel; 4-234, a transmission chain; 4-3, a lifter; 4-4, a clamping mechanism; 4-41, step slide rail; 4-42, step fixing seat; 4-421, step sliding groove; 4-43, step adjusting seat; 4-44, a clamping assembly; 4-441, clamping the sliding block; 4-442, clamping the slide rail; 4-443, clamp driving piece; 4-444, step-by-step clamping blocks; 4-445, a second cylinder bed plate; 4-446, a clamping seat; 4-45, a sliding plate; 4-46, clamping the cover plate; 4-47, adjusting screw; 4-5, a stepping mechanism; 4-51, a stepping seat; 4-52, step driving piece; 4-6, a pressing mechanism; 4-61, a pressing frame; 4-611, a first transverse plate; 4-612, a second transverse plate; 4-613, third diaphragm; 4-62, positioning blocks; 4-63, compressing the driving piece; 4-64, a compression block; 4-65, a first cylinder seat plate; 4-66, a cylinder base; 4-67, a front guide pipe; 4-68, a rear guide tube;

5-4, a steel pipe truss welding device; 5-41, welding a compression assembly; 5-411, pressing the mounting plate; 5-412, a compaction cylinder; 5-413, a locking arm; 5-414, pressing the transmission shaft; 5-415, a pressing claw; 5-416, a compression seat; 5-417, thread guide seat; 5-42, welding the assembly; 5-421, welding a transformer on the upper part; 5-422 upper conducting wires; 5-423, upper welding electrode; 5-424, upper electrode head; 5-425, welding a cylinder on the cylinder; 5-43, steel pipe pressing components; 5-431, pressing the driving body by the steel pipe; 5-432, an upper pressing claw; 5-433, an upper pressing seat;

6-5, a steel pipe truss stepping clamping device; 6-51, an upper clamping assembly; 6-511, an upper clamping cylinder; 6-512, an upper clamping rack; 6-513, an upper clamping gear; 6-514, an upper clamping block; 6-5141, a clamping protrusion; 6-52, a guide block; 6-53, a stepping conveying driving body; 6-54, step bottom plate;

7-1, shaping and widening devices; 7-11, shaping driving body; 7-12, shaping a mold; 7-13, a shaping support; 7-14, shaping slide rails;

8-1, a steel pipe truss cutting device; 8-10, cutting off the base; 8-11 and a fifth vertical plate; 8-12 and a sixth vertical plate; 8-13, a fourth transverse plate; 8-14, a fifth transverse plate; 8-15, a guide fixing plate; 8-16, a support plate; 8-2, a web member rib cutting device; 8-21, a guide component; 8-211, a guide block; 8-2111, a guide surface; 8-212, a guide bracket; 8-213, a guide channel member; 8-22, a cutting component; 8-221, a driving motor; 8-222, a drive shaft; 8-223, a crankshaft; 8-224, a linker arm; 8-225, knuckle bearing; 8-226, a cutting arm; 8-227, moving cutters; 8-228, and a fixed cutter; 8-229, a connecting shaft; 8-3, a steel pipe cutting device; 8-31, a positioning component; 8-311, a support plate; 8-312, steel pipe pressing blocks; 8-313, a pressing driving part; 8-3131, a drive base; 8-314, a lifting mechanism; 8-315, a guide post; 8-316, adjusting plate; 8-3161, a fifth elongated hole; 8-32, a cutting component; 8-321, cutting the bracket; 8-322, a cutting elevator; 8-323, a cutting machine; 8-3231, a cutting machine base; 8-324, cutting slices; 8-325, a lifter fixing plate; 8-326, cutting a sliding rail; 8-327, cutting the slide block; 8-328, a slide rail mounting seat;

9-1, a finished product collecting device; 9-11, a material pulling mechanism; 9-111, a material pulling cylinder; 9-112, a material clamping cylinder; 9-113, a material pulling clamping jaw; 9-12, a material turning mechanism; 9-121 parts of a material turning shaft; 9-122, a material turning plate; 9-123 of a material turning driving body; 9-13, a sliding frame; 9-14 and a material receiving frame.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection or a detachable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a steel pipe truss welding production line, this steel pipe truss welding production line are used for producing the steel pipe truss, as shown in fig. 1 and 2, in this embodiment, the steel pipe truss is the truss structure that web member muscle 101 formed at steel pipe 102 both sides welding bending.

As shown in fig. 3 to 5, the steel pipe truss welding production line provided by the utility model comprises a web member bar pay-off device 1-1, a steel pipe feeding device 2-1, a web member bar straightening and bending device 3-1, a steel pipe conveying and clamping stepping device 4-1, a steel pipe truss welding device 5-4, a steel pipe truss stepping clamping device 6-5, a shaping and widening device 7-1, a steel pipe truss cutting device 8-1 and a finished product collecting device 9-1 which are sequentially arranged along a first direction.

The number of the web member rib pay-off devices 1-1 is two, and the two web member rib pay-off devices 1-1 are respectively used for placing two coils of web member ribs 101 in a wire rod state and can rotate and release the web member ribs 101 in the wire rod state. The web bar straightening and bending device 3-1 is used for receiving the web bar 101 conveyed by the web bar paying-off device 1-1, and the web bar straightening and bending device 3-1 can straighten the web bar 101, bend the straightened web bar 101 into a wavy shape, and convey the bent web bar 101 forward along a first direction for a preset distance which is equal to the pitch of the web bar. A plurality of steel pipes are stored in the steel pipe feeding device 2-1, and the steel pipe feeding device can realize blanking one by one. The steel pipe conveying and clamping stepping device 4-1 is used for receiving the steel pipe 102 conveyed by the steel pipe feeding device 2-1 and conveying the steel pipe 102 forward along a first direction for a preset distance.

The steel pipe truss welding device 5-4 is used for receiving the web bar 101 conveyed by the web bar straightening and bending device 3-1 and receiving the steel pipe 102 conveyed by the steel pipe feeding device 2-1, and can weld wave crests of the steel pipe 102 and the web bar 101. The steel pipe truss stepping clamping device 6-5 is used for carrying out forward sizing conveying on the welded steel pipe truss in the first direction backwards. The shaping and widening device 7-1 is used for receiving the steel pipe truss conveyed by the steel pipe truss stepping and clamping device 6-5, and can adjust the distance between the ends, far away from the steel pipe 102, of the two web bar ribs 101. The steel pipe truss cutting device 8-1 is used for receiving the steel pipe truss conveyed by the shaping and widening device 6-5 and cutting the steel pipe truss at a preset position of the steel pipe truss. And the finished product collecting device 9-1 is used for collecting the cut steel pipe truss.

Specifically, as shown in fig. 6, the web bar unwinding device 1-1 includes an unwinding turntable 1-12 and an unwinding motor 1-11, wherein a web bar 101 in a coil form is wound around the unwinding turntable 1-12, and the unwinding motor 1-11 is configured to drive the unwinding turntable 1-12 to rotate so as to release the web bar 101. Preferably, the web member wire unwinding device 1-1 further comprises a wire guiding member 1-13 and a wire passing beam 1-14, wherein the wire guiding member 1-13 and the wire passing beam 1-14 are used for guiding the web member wire 101 which is rotatably released from the wire releasing turntable 1-12.

As shown in fig. 3 to 5, the web bar straightening and bending apparatus 3-1 includes a straightening mechanism 3-2 and a bending mechanism 3-3, and the straightening mechanism 3-2 is configured to receive the web bar 101 released by the web bar unwinding apparatus 1-1 and is capable of straightening the web bar 101. The bending mechanism 3-3 is used for receiving the web bar 101 conveyed by the straightening mechanism 3-2, bending the web bar 101 into a wave shape, and conveying the web bar 101 backwards.

Specifically, the straightening mechanism 3-2 comprises a set of web member rib straightening portions, the two web member ribs 101 are simultaneously straightened and conveyed by the set of web member rib straightening portions, each web member rib straightening portion comprises two mutually perpendicular straightening plates, each straightening plate is provided with two rows of rollers arranged at intervals, and the web member ribs 101 can pass through the two rows of rollers, so that the web member ribs 101 can be straightened.

As shown in fig. 14 to 17, the bending mechanism 3-3 includes a web bar bending assembly and a web bar conveying assembly, the web bar bending assembly is configured to receive two web bars 101 conveyed by the straightening mechanism 3-2 and bend the two web bars 101 into a wavy shape at the same time, and the web bar conveying assembly is configured to convey the bent web bars 101 forward in the first direction.

As shown in fig. 14, the web bar bending assembly includes a bending driving assembly, and an upper bending swing arm 3-311 and a lower bending swing arm 3-312 which are arranged at intervals along a direction perpendicular to the first direction, and the bending driving assembly can drive the upper bending swing arm 3-311 and the lower bending swing arm 3-312 to swing so as to bend two web bar bars 101 conveyed between the two bending swing arms. More specifically, as shown in FIG. 15, the bend drive assembly includes a mounting bracket, a bend motor 3-313, a small pulley 3-314, a large pulley 3-315, a timing belt 3-316, a gear shaft 3-317, a gear plate 3-318, a swing link 3-319, a crank mount 3-3110, an upper transfer link 3-3111, an upper link arm 3-3112, an upper transfer shaft 3-3113, a lower transfer link 3-3114, a lower link arm 3-3115, a lower transfer shaft 3-3116, an upper swing arm lock plate 3-3117 and a lower swing arm lock plate 3-3118. Wherein, a bending motor 3-313 is arranged on the mounting frame, a small belt wheel 3-314 is arranged on an output shaft of the bending motor 3-313, a large belt wheel 3-315 is rotatably arranged on the mounting frame, a synchronous belt 3-316 is sleeved on the small belt wheel 3-314 and the large belt wheel 3-315, a gear shaft 3-317 is arranged on the large belt wheel 3-315, a gear disc 3-318 is meshed with the gear shaft 3-317, a crank base 3-3110 is rotatably arranged on the mounting frame, one end of a swinging connecting rod 3-319 is hinged with the gear disc 3-318, the other end is hinged with the crank base 3-3110, one end of an upper transmission connecting rod 3-3111 is hinged with the upper end of the crank base 3-3110, the other end is hinged with one end of an upper connecting arm 3-3112, the other end of the upper connecting arm 3-3112 is connected with the upper rotating shaft 3-3113, the upper rotating shaft 3-3113 is connected with the upper swing arm locking plate 3-3117, the upper swing arm locking plate 3-3117 is fixedly connected with the upper bending swing arm 3-311, the first end of the lower transmission connecting rod 3-3114 is hinged with the lower end of the crank seat 3-3110, the other end of the lower transmission connecting rod is hinged with one end of the lower connecting arm 3-3115, the other end of the lower connecting arm 3-3115 is connected with the lower rotating shaft 3-3116, the lower rotating shaft 3-3116 is connected with the lower swing arm locking plate 3-3118, and the lower swing arm locking plate 3-3118 is fixedly connected with the lower bending swing arm 3-312. The bending motor 3-313 drives the small belt wheel 3-314 and drives the large belt wheel 3-315 through the transmission of the synchronous belt 3-316, further the gear shaft 3-317 is meshed with the gear disc 3-318 to rotate, and the gear disc 3-318 enables the crank base 3-3110 to swing back and forth through the swing connecting rod 3-319. The lower transmission connecting rods 3-3114 enable the lower bending swing arms 3-312 fixed on the lower swing arm locking plates 3-3118 to swing up and down in a staggered mode through transmission of the lower connecting arms 3-3115 and the lower rotating shafts 3-3116, the upper transmission connecting rods 3-3111 enable the upper bending swing arms 3-311 fixed on the upper swing arm locking plates 3-3117 to swing up and down in a staggered mode through transmission of the upper connecting arms 3-3112 and the upper rotating shafts 3-3113, and therefore bending forming pins fixed on the upper bending swing arms 3-311 and the lower bending swing arms 3-312 enable the two web rod ribs 101 to be bent into a wavy mode.

As shown in FIG. 17, the web member tendon conveying assembly comprises a conveying driving assembly, a driving gear disc 3-321, a driven gear disc 3-322, a chain 3-323 and a conveying pin shaft 3-324. The axes of the driving gear disc 3-321 and the driven gear disc 3-322 are perpendicular to the first direction, the chain 3-323 is wound on the driving gear disc 3-321 and the driven gear disc 3-322, the conveying driving assembly can drive the driving gear disc 3-321 to rotate, the conveying pin shaft 3-324 is arranged on the chain 3-323, and the conveying pin shaft 3-324 can stir the bent part of the web rod rib 101. More specifically, as shown in fig. 16, the conveying driving assembly includes a driving gear shaft 3-325, a driven gear 3-326, and a driving turntable shaft 3-327, the driving gear shaft 3-325 is provided to the gear plate 3-318, the driven gear 3-326 is engaged with the driving gear shaft 3-325, the driving turntable shaft 3-327 is connected to the driven gear 3-326 through a locking plate, and the driving gear plate 3-321 is connected to the driving gear plate shaft. The gear disc 3-318 drives the driving gear shaft 3-325 to rotate, further the driven gear 3-326 is meshed with the driving gear shaft 3-325 to rotate, the driving gear disc shaft rotates along with the driven gear 3-326, the driving gear disc 3-321 is fixed on the driving gear disc shaft, therefore, the conveying pin shafts 3-324 arranged on the chains 3-323 are driven by the driving gear disc 3-321, the driven gear disc 3-322 and the chains 3-323 to drive the wavy web member ribs 101 to move for a certain distance and then separate, and the web member ribs 101 are pushed to the steel pipe truss welding device 5-4.

As shown in fig. 7 to 13, the steel tube feeding device 2-1 comprises a feeding frame 2-100, a guiding mechanism 2-200, a material ejecting mechanism 2-300, a blanking mechanism 2-400 and a carrier roller mechanism 2-500. The feeding frame 2-100 is a supporting structure of the whole steel pipe feeding device 2-1 and is formed by splicing pipe fittings and plates, and the steel pipe feeding device has the advantages of light weight, high stability and the like.

Specifically, the feeding rack 2-100 comprises a material storage platform 2-101, a supporting vertical pipe 2-104, a supporting transverse pipe 2-105 and a first fixed cross beam 2-103. The material storage platforms 2-101 are located at the top of the whole material loading frame 2-100 and used for storing a plurality of steel pipes 102, in this embodiment, the material storage platforms 2-101 are arranged obliquely, the feeding ends of the material storage platforms 2-101 are higher than the discharging ends, the plurality of steel pipes 102 are sequentially arranged on the material storage platforms 2-101 from high to low, and when the steel pipe 102 located at the discharging end is moved away, the next steel pipe 102 close to the steel pipe 102 can automatically roll down to the discharging end under the action of gravity. Alternatively, the storage platforms 2-101 may be formed from one or more plates. The inclination angles of the storage platforms 2-101 can be adjusted according to requirements so as to support steel pipes 102 of different specifications and weights.

The supporting vertical pipes 2-104 are vertically arranged, one ends of the supporting vertical pipes 2-104 are fixedly connected to the ground, the fixed connection mode can be realized by adopting expansion screws or directly welding the supporting vertical pipes 2-104 on a base plate fixedly connected to the ground, and the other ends of the supporting vertical pipes 2-104 are fixedly connected to the bottom surfaces of the storage platforms 2-101. The number of the supporting vertical pipes 2-104 is multiple, and the multiple supporting vertical pipes 2-104 are regularly arranged below the storage platform 2-101, so that a stable supporting effect is achieved. The horizontal support pipes 2 to 105 are horizontally arranged and connected between two adjacent vertical support pipes 2 to 104, so that the support stability of the feeding rack 2 to 100 is further improved. Further, the feeding rack 2-100 further comprises a reinforcing beam which is obliquely arranged so as to further improve the supporting stability of the feeding rack 2-100. The first fixed beam 2-103 is a plate member which is fixedly connected to one side of the storage platform 2-101. The first fixed cross beam 2-103 is used for fixedly mounting the guide mechanism 2-200 and the ejection mechanism 2-300. The height of the first fixed beam 2-103 is lower than the height of the inclined platform, and the height of the first fixed beam 2-103 is adjustable according to requirements.

Further, the feeding frame 2-100 further comprises alignment baffles 2-102, the alignment baffles 2-102 are arranged on one side of the storage platform 2-101, and the alignment baffles 2-102 are used for limiting the end portions of the steel pipes 102, so that the steel pipes 102 are enabled to be neatly arranged on the storage platform 2-101.

The guide mechanisms 2 to 200 are used to guide the movement of the steel pipe 102 to improve the movement accuracy of the steel pipe 102. As shown in fig. 7, 9 and 10, the guiding mechanism 2-200 comprises a guiding batten 2-201, the guiding batten 2-201 is arranged above the storage platform 2-101, and a guiding channel for accommodating and guiding the plurality of steel pipes 102 is formed between the guiding batten 2-201 and the storage platform 2-101. In this embodiment, the inclination angle of the guide pressing strips 2-201 is the same as that of the material storage platform 2-101, and the width of the guide channel formed between the two is equal to the diameter of the steel pipe 102, so that the plurality of steel pipes 102 can be arranged in the guide channel as one layer, and the phenomenon that the plurality of steel pipes 102 roll to the discharge end at the same time is avoided. The higher part of the guide channel is a feeding hole, the lower part of the guide channel is a discharging hole, and the steel pipe 102 enters the guide channel from the feeding hole and then rolls to the discharging end of the material storage platform 2-101 from the discharging hole. The arrangement of the guide pressing strips 2-201 improves the moving precision of the steel pipe 102 on the storage platforms 2-101 to the greatest extent.

Further, with continued reference to fig. 10, the guide mechanism 2-200 further includes a guide frame 2-202 and a third upright plate 2-203. The guide frames 2-202 are fixedly arranged, specifically, the guide frames 2-202 comprise transverse plates and vertical plates which are vertically connected, the bottom ends of the vertical plates are fixedly connected to the first fixed cross beams 2-103, the top ends of the vertical plates are connected with one ends of the transverse plates, and the other ends of the transverse plates are detachably connected with one ends of the third vertical plates 2-203. The third vertical plate 2-203 is vertically arranged, a first long-strip hole 2-204 is formed in the third vertical plate 2-203 in the vertical direction, a first connecting piece 2-205 is arranged at the other end of the transverse plate of the guide frame 2-202, the first connecting piece 2-205 is connected in the first long-strip hole 2-204, the connecting position of the first connecting piece 2-205 is adjustable, and the guide pressing strip 2-201 is connected to the bottom of the third vertical plate 2-203.

Optionally, the number of the first elongated holes 2 to 204 may be multiple, multiple first elongated holes 2 to 204 are arranged in parallel at intervals, and a first connecting member 2 to 205 is correspondingly connected in each first elongated hole 2 to 204, so as to improve the connection strength between the guide frame 2 to 202 and the third vertical plate 2 to 203. In this embodiment, the first elongated holes 2 to 204 are kidney-shaped holes, and the first connecting members 2 to 205 are bolts or screws.

Optionally, since the length of the steel pipe 102 is long, in order to improve the guiding effect, in this embodiment, a plurality of guiding mechanisms 2-200 are provided, the plurality of guiding mechanisms 2-200 are sequentially arranged at intervals along a direction parallel to the length direction of the steel pipe 102, and the guiding pressing strips 2-201 of the plurality of guiding mechanisms 2-200 are pressed against different positions of the steel pipe 102, so as to realize stable guiding of the movement of the steel pipe 102.

With continued reference to fig. 7, 10 and 11, the ejector mechanism 2-300 is disposed at the discharge end of the storage platform 2-101 and is used for ejecting the steel tube 102 at the discharge end, so that the steel tube 102 can be finally transferred to the carrier roller mechanism 2-500 after passing through the blanking mechanism 2-400. Specifically, the ejector mechanism 2-300 comprises a driving structure 2-301 and an ejector plate 2-302, the output end of the driving structure 2-301 can be lifted in the vertical direction, and the ejector plate 2-302 is arranged at the output end of the driving structure 2-301, so that the ejector plate 2-302 can be lifted or lowered along with the output end of the driving structure 2-301. In this embodiment, the driving structure 2-301 is an air cylinder, and a cylinder body of the air cylinder is fixed on the supporting vertical pipe 2-104 of the feeding rack 2-100, but in other embodiments, the driving structure 2-301 may also be a driving body capable of performing linear motion, such as a linear motor.

The top of the ejector plate 2-302 is provided with an ejector inclined plane 2-3021, one side of the ejector plate 2-302, which is close to the storage platform 2-101, is provided with a material blocking surface 2-3022, when the ejector plate 2-302 ascends along the vertical direction, the ejector inclined plane 2-3021 can jack up the steel pipe 102 at the discharge end, and the material blocking surface 2-3022 can block the next steel pipe 102 which rolls to the discharge end. In this embodiment, the ejector plate 2-302 is an elongated plate, the top surface of which is triangular, and specifically includes two inclined planes arranged at an included angle, one of the inclined planes is the ejector inclined plane 2-3021, and the other inclined plane belongs to the material blocking plane 2-3022.

The initial position of the ejection inclined plane 2-3021 of the ejector plate 2-302 is lower than the steel pipe 102 at the discharge end and is positioned right below the steel pipe 102. When the steel pipe 102 needs to be jacked up, the driving structure 2-301 is started, the jacking plate 2-302 ascends along the vertical direction, the jacking inclined surface 2-3021 contacts the steel pipe 102 from the lower part of the steel pipe 102, and then the steel pipe 102 is jacked up. At the moment, the material blocking surfaces 2-3022 are arranged to protrude out of the discharging ends of the material storage platforms 2-101, so that the steel pipes 102 which subsequently fall to the discharging ends can be blocked. After the ejection operation of one steel pipe 102 is finished, the driving structure 2-301 drives the ejector plate 2-302 to descend, the ejection inclined plane 2-3021 returns to the initial position lower than the discharge end again, and the next steel pipe 102 can roll to the position above the ejection inclined plane 2-3021. In order to avoid the steel pipe 102 from rolling down the material loading frame 2-100, a fixed stop block is arranged at the discharging end, and the distance between the stop surface of the fixed stop block and the stop surface 2-3022 of the ejector plate 2-302 is the diameter of the steel pipe 102, so that only one steel pipe 102 is allowed to exist in a right-angle space formed between the stop surface of the fixed stop block and the stop surface 2-3022 of the ejector plate 2-302.

Furthermore, the material ejecting mechanism 2-300 further comprises a slide rail 2-303, the slide rail 2-303 is fixedly arranged on the material loading frame 2-100 along the vertical direction, a slide block is arranged on the material ejecting plate 2-302, and the slide block is connected with the slide rail 2-303 in a sliding manner. This improves the accuracy of the ascent or descent of the ejector plate 2-302.

With continued reference to fig. 11 to 13, the blanking mechanism 2-400 is disposed at the discharge end of the storage platform 2-101 for determining the blanking height of the steel tube 102. Specifically, the blanking mechanism 2-400 comprises a blanking baffle 2-401, a blanking inclined plane 2-4011 is arranged at the top of the blanking baffle 2-401, the blanking inclined plane 2-4011 is arranged at a preset height, and the steel pipe 102 on the ejection inclined plane 2-3021 can roll onto the blanking inclined plane 2-4011. Since the blanking baffle 2-401 protrudes from the discharge end, the blanking baffle 2-401 also has the function of a fixed stopper, and in this embodiment, only the blanking baffle 2-401 may be disposed without the fixed stopper. Certainly, the blanking baffle 2-401 can be arranged, and meanwhile, a fixed stop block can be arranged, so that the material blocking effect is improved, and the material falling prevention effect is better.

It should be noted that the maximum height of the ejector inclined plane 2-3021 of the ejector plate 2-302 after rising needs to be higher than that of the blanking inclined plane 2-4011, and the starting point of the blanking inclined plane 2-4011 is a certain distance away from the starting point of the ejector inclined plane 2-3021, and the distance is set to ensure that the steel pipe 102 can be transited from the ejector inclined plane 2-3021 to the blanking inclined plane 2-4011. Specifically, under the driving of the driving structure 2-301, the ejector plate 2-302 ascends, in the process, the steel pipe 102 moves downwards for a certain distance on the ejector inclined plane 2-3021, and when the ejector plate 2-302 ascends to a preset height higher than the blanking inclined plane 2-4011, the ejector plate 2-302 descends immediately, so that the steel pipe 102 is not supported any more, at the moment, the position of the steel pipe 102 in the horizontal direction is just above the blanking inclined plane 2-4011, and therefore the steel pipe 102 can roll down on the blanking inclined plane 2-4011.

Further, as shown in fig. 13, the blanking baffle 2-401 is provided with a second elongated hole 2-4012 along the vertical direction, the second connecting piece 2-402 passes through the second elongated hole 2-4012 and is connected to the upper material frame 2-100, and the connecting position of the second connecting piece 2-402 in the second elongated hole 2-4012 is adjustable. Optionally, the second elongated holes 2-4012 are kidney-shaped holes and the second connectors 2-402 are screws or bolts.

With continued reference to fig. 11, the roller mechanism 2-500 is located at a side of the blanking mechanism 2-400 away from the loading frame 2-100, and is used for receiving the steel tube 102 rolled off from the blanking inclined plane 2-4011 and conveying the steel tube 102 to the next process. Specifically, the carrier roller mechanism 2-500 comprises a carrier roller frame, a carrier roller groove is formed in the carrier roller frame, and the steel pipe 102 on the blanking inclined plane 2-4011 can roll into the carrier roller groove.

In this embodiment, the idler frame comprises idler plates 2-501 and at least two idler units arranged on the idler plates 2-501 at intervals along a first direction, and the first direction is parallel to the length direction of the steel pipe 102. The carrier roller unit comprises a guide roller seat 2-502 and two guide roller shafts 2-503, the guide roller seat 2-502 is connected to a carrier roller plate 2-501, one end of each guide roller shaft 2-503 is rotatably connected to the guide roller seat 2-502, the two guide roller shafts 2-503 are arranged in a V shape, a carrier roller groove is formed between the two guide roller shafts, and therefore in the embodiment, the carrier roller groove is a V-shaped groove. Different parts of the steel pipe 102 are arranged in the V-shaped grooves of different carrier roller units to realize stable support, and when the steel pipe 102 moves from the carrier roller mechanisms 2-500 to equipment in the next process, the guide roller shafts 2-503 rotate around the axes of the guide roller shafts, so that rolling contact with the steel pipe 102 is realized, the rolling contact can reduce abrasion on the surface of the steel pipe 102, and the quality of the steel pipe 102 is favorably ensured.

Optionally, because the length of the steel pipe 102 is long, in order to stably support all parts of the steel pipe 102, a plurality of roller mechanisms 2-500 are provided, and the plurality of roller mechanisms 2-500 are arranged at intervals along the first direction.

Further optionally, the roller frame further comprises a guide bottom plate 2-506, a guide rod 2-504, a guide sleeve 2-505 and an adjusting rod 2-507. The guide bottom plates 2-506 are fixedly arranged, specifically, the guide bottom plates 2-506 are horizontally arranged, and one ends of the guide bottom plates 2-506 are fixedly connected to the first fixed cross beams 2-103. The guide sleeve 2-505 is fixedly arranged on the guide bottom plate 2-506 in a penetrating way, a guide hole is arranged on the guide bottom plate 2-506, and the guide hole and the guide sleeve 2-505 are arranged at intervals. One end of the guide rod 2-504 is fixedly connected with the bottom of the idler plate 2-501, and the other end is slidably arranged in the guide sleeve 2-505 in a penetrating way.

The adjusting rods 2-507 are connected in the guide holes, the connecting positions are adjustable, and the tops of the adjusting rods 2-507 are abutted against the bottom surfaces of the roller plates 2-501. Optionally, the adjusting rod 2-507 is a threaded rod, and the roller frame further comprises an adjusting nut 2-508, wherein the adjusting nut 2-508 is screwed on the threaded rod and stops against the top surface of the guide bottom plate 2-506. When the height of the carrier roller unit needs to be adjusted, the adjusting nuts 2-508 are rotated, and the heights of the adjusting rods 2-507 above the adjusting nuts 2-508 are changed, so that the height adjustment can be completed. It should be noted that the top of the adjustment rod 2-507 may now be fixedly attached to the bottom surface of the idler plate 2-501. Of course, besides this method, the guide hole may be a threaded hole, the adjusting rod 2-507 is a threaded rod, and then the top of the adjusting rod 2-507 is only abutted against the bottom surface of the idler plate 2-501, and the two are not fixedly connected. When the height needs to be adjusted, the adjusting rods 2-507 can be directly rotated. When the height of the carrier roller unit is adjusted, the guide rods 2-504 can guide, and the adjustment precision is improved.

The steel pipe feeding device 2-1 can sequentially send a plurality of steel pipes which are placed orderly on the feeding frame 2-100 to the V-shaped roller frame, not only can complete one-by-one blanking and automatic one-by-one ejection in the feeding process, but also can adjust the blanking height and the ejection height according to requirements, and is simple and convenient to adjust, and stable and orderly in feeding. Compared with the existing manual feeding, the automatic feeding device has the advantages that the automation degree is high, the manpower use is reduced, the feeding precision and the feeding efficiency are improved to a great extent, the labor intensity and potential safety hazards are reduced, the safety is high, the safety accidents caused by manual feeding are avoided, and the labor intensity of workers is reduced.

The steel pipe conveying and clamping stepping device 4-1 is used for conveying the steel pipe 102 in a stepping mode in the machining process of the steel pipe 102. The steel pipe 102 can be conveyed in a stepping mode without manually placing the steel pipe 102 during welding operation of the steel pipe 102, so that labor is saved, manual operation load is reduced, automation operation degree is improved, and operation potential safety hazards can be reduced.

Specifically, as shown in fig. 18 and 19, the steel pipe conveying and clamping stepping device 4-1 comprises a stepping support 4-10, a conveying mechanism 4-2, a clamping mechanism 4-4 and a stepping mechanism 4-5. Wherein, the conveying mechanism 4-2, the clamping mechanism 4-4 and the stepping mechanism 4-5 are all arranged on the stepping support 4-10. The conveying mechanism 4-2, the carrier roller mechanisms 2-500 of the steel pipe feeding device 2-1 and the clamping mechanisms 4-4 are arranged at intervals along a first direction, the carrier roller mechanisms 2-500 are used for supporting the steel pipe 102 in a rolling mode, the conveying mechanism 4-2 is used for pushing the steel pipe 102 to move from the carrier roller mechanisms 2-500 to the clamping mechanisms 4-4, the clamping mechanisms 4-4 are movably arranged on the stepping supports 4-10, the clamping mechanisms 4-4 are used for clamping the steel pipe 102, and the stepping mechanisms 4-5 are used for driving the clamping mechanisms 4-4 to move for a set distance along the first direction. The first direction is as shown by ab direction in fig. 18, the steel pipe conveying and clamping stepping device 4-1 provided by this embodiment can convey the steel pipe 102 on the carrier roller mechanism 2-500 to the clamping mechanism 4-4 through the conveying mechanism 4-2, after the clamping mechanism 4-4 clamps the steel pipe 102, the clamping mechanism 4-4 can be drawn by the stepping mechanism 4-5 to drive the steel pipe 102 to step by a set distance, then the clamping mechanism 4-4 loosens the steel pipe 102, and the steel pipe 102 returns under the driving of the stepping mechanism 4-5, so as to realize the fixed-length conveying of the steel pipe 102, where the set distance can be set as needed.

Optionally, the steel pipe conveying and clamping stepping device 4-1 further comprises a pressing mechanism 4-6 arranged between the carrier roller mechanism 2-500 and the clamping mechanism 4-4, and the pressing mechanism 4-6 is used for pressing or loosening the steel pipe 102. When the conveying mechanism 4-2 conveys the steel pipe 102 to the clamping mechanism 4-4, the steel pipe 102 can be pressed by the pressing mechanism 4-6, and then the steel pipe 102 is clamped by the clamping mechanism 4-4, so that the position of the steel pipe 102 can be ensured to be stable when the steel pipe 102 is clamped, and after the steel pipe 102 is clamped by the clamping mechanism 4-4, the pressing mechanism 4-6 can release the steel pipe 102, so that the stepping mechanism 4-5 drives the clamping mechanism 4-4 and the steel pipe 102 to carry out stepping conveying.

As shown in fig. 18 to 20, the conveying mechanism 4-2 includes a pushing plate 4-21, a pushing slide rail 4-22, and a conveying driving mechanism 4-23. The pushing sliding rails 4-22 are arranged on the stepping supports 4-10 and extend along a first direction, the pushing plates 4-21 are in sliding fit with the pushing sliding rails 4-22 along the first direction, the conveying driving mechanisms 4-23 can drive the pushing plates 4-21 to move along the first direction, and when the conveying driving mechanisms 4-23 drive the pushing plates 4-21 to move along the first direction, the pushing plates 4-21 can be abutted to one end of the steel pipe 102 which is supported on the carrier roller mechanisms 2-500 in a rolling mode and can push the steel pipe 102 to move along the first direction synchronously.

In this embodiment, the conveying driving mechanism 4-23 includes a conveying motor 4-231, a conveying driving wheel 4-232, a conveying driven wheel 4-233 and a transmission chain 4-234. The conveying motor 4-231 is arranged on the stepping support 4-10 and is in transmission connection with the conveying driving wheel 4-232, the conveying driven wheel 4-233 is rotatably arranged on the stepping support 4-10, the conveying driven wheel 4-233 and the conveying driving wheel 4-232 are arranged at intervals along a first direction, the transmission chain 4-234 is connected with the conveying driving wheel 4-232 and the conveying driven wheel 4-233, the material pushing plate 4-21 is fixed on the transmission chain 4-234, when the conveying motor 4-231 drives the conveying driving wheel 4-232 to rotate, the conveying driving wheel 4-232 drives the transmission chain 4-234 meshed with the conveying driving wheel to rotate, and the transmission chain 4-234 drives the material pushing plate 4-21 to synchronously move and drives the conveying driven wheel 4-233 to rotate. Specifically, in this embodiment, the first vertical plate 4-11 and the first vertical plate 4-12 are arranged on the stepping support 4-10 at intervals along the first direction, the material pushing slide rail 4-22 is fixed to the first vertical plate 4-11, the rotating shaft for conveying the driven wheel 4-233 is rotatably mounted on the first vertical plate 4-11, and the conveying motor 4-231 is mounted on the first vertical plate 4-12. Wherein the transmission chains 4-234 can also be replaced by transmission belts.

As an alternative, the conveying driving mechanism 4-23 may further include a conveying cylinder, and a pushing block mounted on a cylinder rod of the conveying cylinder, the conveying cylinder can drive the pushing block to reciprocate along a first direction, and the pushing block can push the steel pipe 102 to move on the roller mechanisms 2-500.

The steel pipe 102 can be placed between the two guide roller shafts 2-503 and supported by the two guide roller shafts 2-503, when the steel pipe 102 is pushed by the material pushing plate 4-21 to move along the first direction, each guide roller shaft 2-503 can be driven by the steel pipe 102 to rotate relative to the guide base plate 2-506 at the same time, and further the steel pipe 102 can be supported in a rolling manner, so that the friction force applied to the steel pipe 102 in the moving process can be reduced, and the steel pipe can be conveniently conveyed.

As shown in fig. 18, 19, 21 and 22, the pressing mechanism 4-6 includes a pressing frame 4-61, a positioning block 4-62, a pressing driving member 4-63 and a pressing block 4-64. Wherein, the compaction frame 4-61 is arranged on the stepping support 4-10. In the embodiment, the stepping support 4-10 further comprises an adjusting frame 4-15 positioned on one side of the second fixed cross beam 4-13, the pressing frame 4-61 is specifically arranged on the adjusting frame 4-15, and the positioning block 4-62 is supported on the pressing frame 4-61; the compaction driving part 4-63 is arranged on the compaction frame 4-61; the compaction driving parts 4-63 are in transmission connection with the compaction blocks 4-64, the moving paths of the steel pipes 102 pass through the compaction blocks 4-64 and the positioning blocks 4-62, and the compaction driving parts 4-63 can drive the compaction blocks 4-64 to compact the steel pipes 102 on the positioning blocks 4-62. In this embodiment, during the process of conveying the steel duct 102 to the gripping mechanism 4-4 by the conveying mechanism 4-2, the steel duct 102 firstly passes through between the pressing blocks 4-64 and the positioning blocks 4-62, when the steel duct 102 is conveyed to the gripping mechanism 4-4, a part of the steel duct 102 is positioned between the pressing blocks 4-64 and the positioning blocks 4-62, before the gripping mechanism 4-4 grips the steel duct 102, the pressing blocks 4-64 are driven by the pressing drivers 4-63 to press the steel duct 102 against the positioning blocks 4-62, so that the steel duct 102 can be positioned during the process of gripping the steel duct 102 by the gripping mechanism 4-4, and the position of the steel duct 102 is not deflected after gripping the steel duct 102.

Specifically, a first V-shaped groove is formed in the positioning block 4-62, a second V-shaped groove is formed in the pressing block 4-64, and when the pressing block 4-64 presses the steel pipe 102 against the positioning block 4-62, the steel pipe 102 is respectively abutted against two side walls of the first V-shaped groove and two side walls of the second V-shaped groove, so that the steel pipe 102 can be guaranteed to be stably pressed. In this embodiment, the pressing driving member 4-63 is preferably an air cylinder, and the pressing driving member 4-63 is fixed to the pressing frame 4-61 through an air cylinder base 4-66. In other embodiments, the pressure drive 4-63 may instead be an electric cylinder.

In order to adapt to steel pipes 102 with different welding heights, in the embodiment, the cylinder base 4-66 is provided with a third elongated hole extending in the vertical direction, the pressing frame 4-61 is provided with a first cylinder seat plate 4-65, the cylinder base 4-66 can be fixed on the pressing frame 4-61 by a third connecting piece penetrating through the third elongated hole and being in threaded connection with the first cylinder seat plate 4-65, so that the position of the pressing driving piece 4-63 in the vertical direction can be adjusted by adjusting the position of the third connecting piece in the third elongated hole, the position of the cylinder base 4-66 in the vertical direction can be adjusted to adjust the position of the pressing driving piece 4-63 in the vertical direction, and further the initial position of the pressing block 4-64 and the position of the pressing steel pipe 102 can be adjusted to adapt to steel pipes 102 with different welding heights. Preferably, the adjusting frame 4-15 has a function of lifting in a vertical direction, for example, the adjusting frame 4-15 may include a frame body and a lifting seat, the lifting seat can lift in the vertical direction relative to the frame body, the pressing frame 4-61 is disposed on the lifting seat, so that when the lifting seat lifts in the vertical direction relative to the frame body, the position of the adjusting frame 4-15 in the vertical direction, and further the position of the positioning block 4-62, can be adjusted to further adapt to the steel pipes 102 with different welding heights, wherein the lifting seat can be driven to lift relative to the frame body by the lifter 4-3.

Optionally, the pressing mechanism 4-6 further comprises a front guide pipe 4-67 and a rear guide pipe 4-68 which are both mounted on the pressing frame 4-61, the front guide pipe 4-67 and the rear guide pipe 4-68 are arranged on two sides of the pressing block 4-64 at intervals along the first direction, and the steel pipe 102 passes through between the front guide pipe 4-67 and the rear guide pipe 4-68. The front guide pipes 4-67 and the rear guide pipes 4-68 are arranged to guide the passing steel pipe 102, so that the stable conveying direction of the steel pipe 102 is ensured, and meanwhile, the steel pipe 102 can be accurately inserted between the positioning blocks 4-62 and the pressing blocks 4-64. Specifically, a first transverse plate 4-611, a second transverse plate 4-612 and a third transverse plate 4-613 are sequentially arranged on the pressing frame 4-61 along a first direction, the front guide pipe 4-67 is fixed on the first transverse plate 4-611, the positioning block 4-62 is fixed on the second transverse plate 4-612, and the rear guide pipe 4-68 is fixed on the third transverse plate 4-613.

As shown in fig. 18, 19, 23 and 24, the clamping mechanism 4-4 comprises a step slide 4-41, a step fixing seat 4-42, a step adjusting seat 4-43 and two clamping components 4-44. Wherein, the stepping slide rail 4-41 is arranged on the stepping support 4-10. Specifically, the stepping support 4-10 further comprises side rib frames 4-16, the side rib frames 4-16 are arranged at intervals along the first direction relative to the adjusting frames 4-15, and the stepping slide rails 4-41 are arranged on the side rib frames 4-16. The stepping fixing seat 4-42 is arranged on the stepping sliding rail 4-41 in a sliding manner and can slide along a first direction relative to the stepping sliding rail 4-41, and the stepping mechanism 4-5 is used for driving the stepping fixing seat 4-42 to move along the first direction; the stepping adjusting seat 4-43 is arranged on the stepping fixing seat 4-42; the two clamping assemblies 4-44 are arranged at intervals and oppositely along a second direction, the second direction is perpendicular to the first direction, the second direction is shown as a cd direction in fig. 23, the clamping assemblies 4-44 comprise clamping driving pieces 4-443 and clamping slide rails 4-442 which are arranged on the stepping adjusting seats 4-43, clamping slide blocks 4-441 arranged on the clamping slide rails 4-442 in a sliding mode, and stepping clamping blocks 4-444 which are arranged on the clamping slide blocks 4-441 and are in transmission connection with the clamping driving pieces 4-443, the clamping slide blocks 4-441 can slide along the second direction relative to the clamping slide rails 4-442, and the two stepping clamping blocks 4-444 are used for clamping the steel pipe. It can be understood that the steel pipe 102 can be conveyed between the two stepping clamping blocks 4-444 by the conveying mechanism 4-2, when the steel pipe 102 is pressed by the pressing mechanism 4-6, in the two clamping assemblies 4-44, the two clamping driving members 4-443 respectively drive the two stepping clamping blocks 4-444 to move relatively to clamp the steel pipe 102, and then the pressing mechanism 4-6 releases the steel pipe 102, at this time, the stepping fixing seats 4-42 can be driven by the stepping mechanism 4-5 to move in the first direction to realize stepping of the steel pipe 102.

In this embodiment the clamp drive 4-443 is preferably a pneumatic cylinder, in other embodiments the clamp drive 4-443 may alternatively be an electric cylinder. The clamp driving member 4-443 is mounted to the stepping adjustment block 4-43 through the second cylinder block plate 4-445. The stepping clamping block 4-444 is connected with the clamping slide block 4-441 through a clamping seat 4-446, and the clamping driving piece 4-443 is in driving connection with the clamping seat 4-446.

In order to adapt to steel pipes 102 with different welding heights, the clamping mechanism 4-4 further comprises a sliding plate 4-45, a clamping cover plate 4-46 and an adjusting screw 4-47 in the embodiment. Wherein, the clamping cover plate 4-46 is arranged on the stepping fixed seat 4-42, and the clamping cover plate 4-46 is positioned above the stepping adjusting seat 4-43; the stepping fixed seat 4-42 is provided with a stepping sliding groove 4-421 extending along the vertical direction, and the sliding plate 4-45 is positioned in the stepping sliding groove 4-421 in a sliding manner; the adjusting screw rod 4-47 is rotatably connected with the stepping adjusting seat 4-43, and the adjusting screw rod 4-47 is in threaded connection with the clamping cover plate 4-46. Thus, the position of the step adjustment seat 4-43 in the vertical direction, and thus the position of the two clamping assemblies 4-44 in the vertical direction, can be adjusted by rotating the adjustment screw 4-47, so as to keep the centers of the two pressing blocks 4-64 and the center of the steel pipe 102 coincident.

As shown in fig. 18, in the present embodiment, the stepping mechanism 4-5 includes a stepping motor 4-51 and a stepping drive 4-52 mounted to the stepping motor 4-51. Wherein, the stepping seat 4-51 is arranged on the side rib frame 4-16. Preferably, the stepping seat 4-51 is provided with a fourth elongated hole extending in a vertical direction, and the connection between the stepping seat 4-51 and the side frames 4-16 is achieved by a fourth connecting member passing through the fourth elongated hole and connecting with the side frames 4-16. By providing the fourth elongated hole, it is easy to adjust the position of the step driving member 4-52 in the vertical direction at the time of assembly. In this embodiment the step drives 4-52 are preferably pneumatic cylinders, in other embodiments the component drives may alternatively be electric cylinders.

The operation principle of the steel pipe conveying and clamping stepping device 4-1 provided by the embodiment is as follows:

1. according to the welding height of the steel pipe 102, the height of the guide roller seat 2-502 is selectively adjusted by screwing the adjusting rod 2-507, so that the height of the steel pipe 102 supported behind the guide roller shaft 2-503 meets the welding requirement.

2. Selectively adjusting the position of a third long hole of a third connecting piece in the cylinder base 4-66 according to requirements to adjust the position of the compression driving piece 4-63, and further adjusting the initial position and the compression position of the compression block 4-64 to be at a proper height; meanwhile, the positions of the positioning blocks 4-62 in the vertical direction are selectively adjusted by adjusting the lifting of the frames 4-15 as required to adapt to the welding height of the steel pipe 102.

3. The adjusting screw 4-47 is selectively screwed to adjust the position of the stepping adjusting seat 4-43 in the vertical direction, so as to adjust the clamping position of the stepping clamping block 4-444 in the two clamping assemblies 4-44 to adapt to the welding height of the steel pipe 102.

4. Feeding the steel pipe 102 to the carrier roller mechanisms 2-500, enabling one end of the steel pipe 102 to abut against the material pushing plates 4-21, then starting the conveying motors 4-231, enabling the conveying motors 4-231 to drive the material pushing plates 4-21 to push the steel pipe 102 to move along a first direction through the transmission chains 4-234, enabling the steel pipe 102 to sequentially pass through the front guide pipes 4-67, the positioning blocks 4-62 and the rear guide pipes 4-68 and finally move to positions between the stepping clamping blocks 4-444 of the two clamping assemblies 4-44 of the clamping mechanisms 4-4, enabling the conveying motors 4-231 to rotate in opposite directions, and enabling the conveying motors 4-231 to drive the material pushing plates 4-21 to return to initial positions of the material pushing plates 4-21.

Sizing and conveying:

starting the compaction driving parts 4 to 63, and driving the compaction blocks 4 to 64 by the compaction driving parts 4 to 63 to compact the steel pipe 102 on the positioning blocks 4 to 62; then the two clamping driving members 4-443 are opened, the two clamping driving members 4-443 drive the two stepping clamping blocks 4-444 to move respectively so as to clamp the steel pipe 102, then the pressing driving members 4-63 drive the pressing blocks 4-64 to return to the initial positions of the pressing blocks 4-64, and the pressing blocks 4-64 are separated from the steel pipe 102. Then starting the stepping driving parts 4-52, driving the stepping fixing seats 4-42 to step by a set distance along the first direction by the stepping driving parts 4-52, stopping the stepping driving parts 4-52, starting the compaction driving parts 4-63, and driving the compaction blocks 4-64 by the compaction driving parts 4-63 to compact the steel pipe 102 on the positioning blocks 4-62; then the two clamping driving members 4-443 respectively drive the two stepping clamping blocks 4-444 to move so as to loosen the steel pipe 102, the stepping driving members 4-52 are started, the stepping driving members 4-52 drive the stepping fixing seats 4-42 to move in the reverse direction of the first direction for a set distance, so that the clamping mechanisms 4-4 return to the initial positions of the clamping mechanisms 4-4, and fixed-length conveying of the steel pipe 102 is achieved, wherein in the embodiment, the set distance is the distance between two adjacent wave crests or wave troughs after the web member ribs are bent.

The sizing operation is repeated until the tail of the steel pipe 102 reaches between the stepped gripping blocks 4-444 of the two gripping assemblies 4-44 when the gripping mechanism 4-4 is in the initial position.

As shown in fig. 25 to 27, the steel pipe truss welding apparatus 5-4 includes a welding and compressing assembly 5-41, an upper welding assembly 5-42, and a steel pipe compressing assembly 5-43, which are sequentially disposed. The welding pressing assemblies 5-41 can respectively press the bent parts of the two web rod ribs 101 to two opposite side surfaces of the pressing seats 5-416, the steel pipe conveying and clamping stepping device 4-1 can convey the steel pipe 102 to the top ends of the bent parts of the two web rod ribs 101, and the upper welding assemblies 5-42 can weld wave crests of the steel pipe 102 and the two web rod ribs 101.

More specifically, as shown in fig. 25, the welding press assembly 5-41 includes a press mounting plate 5-411, a press cylinder 5-412, a lock arm 5-413, a press drive shaft 5-414, a press claw 5-415, a press holder 5-416, and a guide wire holder 5-417. The two pressing cylinders 5-412 are arranged on the pressing mounting plates 5-411, one ends of two locking arms 5-413 are respectively hinged with the telescopic ends of the two pressing cylinders 5-412 in a one-to-one correspondence mode, two pressing transmission shafts 5-414 are rotatably arranged on the pressing mounting plates 5-411, the two pressing transmission shafts 5-414 are respectively connected with the two locking arms 5-413 in a one-to-one correspondence mode, the two pressing claws 5-415 are connected with the two pressing transmission shafts 5-414 in a one-to-one correspondence mode, the two pressing claws 5-415 are respectively located on two sides of the pressing bases 5-416, and the wire guide bases 5-417 are arranged above the pressing bases 5-416 and used for the steel pipe 102 to pass through.

As shown in fig. 26, the upper welding set 5-42 includes an upper welding transformer 5-421, two upper leads 5-422 connected to the upper welding transformer 5-421, two upper welding electrodes 5-423 connected to the two upper leads 5-422, respectively, two upper electrode heads 5-424 provided on the two upper welding electrodes 5-423, respectively, and an upper welding cylinder 5-425 drivingly connected to the two upper welding electrodes 5-423, respectively. The two upper welding cylinders 5-425 respectively push a pair of upper welding electrodes 5-423 and upper electrode heads 5-424 which are integrally arranged, the wave crests of the steel pipe 102 and the wavy web member ribs 101 are pressed together, and the current output by the upper welding transformers 5-421 is transmitted through the upper leads 5-422 to weld the steel pipe 102 and the web member ribs 101 together.

As shown in fig. 27, the steel pipe pressing assembly 5-43 includes a steel pipe pressing driving body 5-431, an upper pressing base 5-433, and an upper pressing claw 5-432. One end of the upper pressing seat 5-433 is fixedly arranged, one end of the upper pressing claw 5-432 is rotatably connected to the upper pressing seat 5-433, the other end of the upper pressing claw 5-432 is provided with a pressing surface used for pressing the steel pipe 102, and the output end of the steel pipe pressing driving body 5-431 is vertically arranged and is connected with the middle part of the upper pressing claw 5-432. Under the driving of the steel pipe pressing driving body 5-431, the upper pressing claw 5-432 can rotate relative to the upper pressing seat 5-433, so that the pressing surface of the upper pressing claw 5-432 is pressed on the steel pipe 102 or is separated from the steel pipe 102. Alternatively, the steel pipe pressing driving bodies 5 to 431 are air cylinders.

As shown in fig. 28 to 30, the steel pipe truss stepping clamping device 6-5 includes a stepping driving assembly, a stepping bottom plate 6-54 and an upper clamping assembly 6-51, the stepping driving assembly is used for driving the stepping bottom plate 6-54 to perform fixed-length feeding along a first direction, the upper clamping assembly 6-51 is arranged on the stepping bottom plate 6-54, and the upper clamping assembly 6-51 is used for clamping the connection position of the steel pipe 102 and the web member rib 101 in the steel pipe truss.

More specifically, as shown in fig. 28 and 29, the upper clamping assembly 6-51 comprises an upper clamping cylinder 6-511, an upper clamping rack 6-512, an upper clamping gear 6-513 and an upper clamping block 6-514, wherein the upper clamping rack 6-512 is connected to the telescopic end of the upper clamping cylinder 6-511, two opposite surfaces of the upper clamping rack 6-512 are provided with engaging teeth, the two upper clamping gears 6-513 are respectively engaged with two side surfaces of the upper clamping rack 6-512, the upper clamping block 6-514 is connected to the upper clamping gear 6-513, the upper clamping block 6-514 is provided with a clamping protrusion 5141, and the clamping protrusions 5141 of the two upper clamping blocks 6-514 are matched to clamp the connecting position of the steel pipe 102 and the web member rib 101 in the steel pipe truss.

As shown in FIG. 28, the stepper drive assembly includes stepper conveyor drives 6-53, and the output end of the stepper conveyor drives 6-53 is drivingly connected to the stepper base plates 6-54 for driving the stepper base plates 6-54 in a first direction. It should be noted that the transmission connection here may be a direct connection, and may also be a connection implemented by using a transmission component. Alternatively, the stepping conveyance driving bodies 6 to 53 are stepping motors that drive the stepping base plates 6 to 54 to reciprocate by forward rotation and reverse rotation. And the steel pipe truss finished product after welding is sent into a cutting device in a reciprocating way. Further, the steel pipe truss stepping clamping device 6-5 further comprises guide blocks 6-52, the guide blocks 6-52 are wedge-shaped blocks and are arranged between the two upper clamping blocks 6-514, and the guide blocks 6-52 are used for supporting the steel pipe truss.

As shown in fig. 31 and 32, the shaping widening device 7-1 comprises a shaping driving body 7-11 and a shaping die 7-12, wherein the output end of the shaping driving body 7-11 is arranged along a second direction perpendicular to the first direction, the shaping die 7-12 is in a wedge shape, the large-size end of the shaping die 7-12 is connected with the output end of the shaping driving body 7-11, and the shaping die 7-12 is positioned below the steel pipe truss and moves between two web bar ribs of the steel pipe truss along the second direction to widen the distance between the end parts of the two web bar ribs far away from the steel pipe. Alternatively, in the present embodiment, the shaping driving bodies 7 to 11 are air cylinders, and the air cylinder rods of the air cylinders are arranged in the vertical direction. The shaping grinding tool comprises two symmetrically-arranged shaping plates, and the distance between the upper ends of the two shaping plates is smaller than the distance between the lower ends of the two shaping plates. In order to realize the connection of the shaping driving bodies 7-11 and the two shaping plates, lug plates are further arranged below the shaping plates, and the two lug plates are in transmission connection with a cylinder rod of the cylinder through T-shaped rods. The shaping drive bodies 7 to 11 can also be oil cylinders or other drive bodies which can perform linear motion.

Further, the shaping widening device 7-1 further comprises a shaping support 7-13, the shaping support 7-13 comprises a bottom mounting frame and two side mounting frames, the two side mounting frames are arranged on the top surface of the bottom mounting frame at intervals, and the shaping driving body 7-11 is arranged between the two side mounting frames and is fixedly connected with the shaping support 7-13.

Furthermore, shaping slide rails 7-14 are further arranged on the inner sides of the side mounting frames, the shaping dies 7-12 are connected with the shaping slide rails 7-14 in a sliding mode, and the arrangement of the shaping slide rails 7-14 can improve the moving accuracy of the shaping dies 7-12.

As shown in fig. 33 to 41, the steel pipe truss cutting device 8-1 includes a cutting base 8-10, a web bar cutting device 8-2, and a steel pipe cutting device 8-3. The web bar rib cutting device 8-2 and the steel pipe cutting device 8-3 are arranged on the cutting base 8-10, and the web bar rib cutting device 8-2 and the steel pipe cutting device 8-3 are arranged at intervals in the first direction of the steel pipe truss. The web bar cutting device 8-2 comprises a guide assembly 8-21 and a cutting assembly 8-22, the guide assembly 8-21 is used for guiding the steel pipe truss to move along the first direction, the steel pipe truss can be prevented from deflecting in the feeding process, and the cutting assembly 8-22 is used for synchronously cutting off the two web bar ribs 101. The steel pipe cutting device 8-3 comprises a positioning assembly 8-31 and a cutting assembly 8-32, wherein the positioning assembly 8-31 is used for fixing the steel pipe 102 and preventing the steel pipe truss from loosening in the cutting process, and the cutting assembly 8-32 is used for cutting the steel pipe 102.

According to the steel pipe truss cutting device 8-1 provided by the embodiment, the steel pipe truss can be conveyed through the steel pipe truss stepping clamping device 6-5, and when the steel pipe truss is conveyed to the web member rib cutting device 8-2, the steel pipe truss is conveyed to the steel pipe cutting device 8-3. The web member rib cutting device 8-2 and the steel pipe cutting device 8-3 can be started only one, the length size of the required steel pipe truss is not equal to the set distance, the web member rib cutting device 8-2 can be started alone firstly, after the web member rib 101 is cut off, the steel pipe truss is conveyed to the steel pipe cutting device 8-3 by the steel pipe truss stepping clamping device 6-5, and after the position where the web member rib 101 is cut off reaches the steel pipe cutting device 8-3, the steel pipe cutting device 8-3 is started alone to cut off the steel pipe 102, so that the web member rib 101 of the steel pipe truss can be cut off in a fixed size. When the steel pipe cutting device 8-3 is independently started, the steel pipe truss stepping clamping device 6-5 can convey the steel pipe truss to the required size each time, and the size of the steel pipe 102 is cut off. The web member rib cutting device 8-2 and the steel pipe cutting device 8-3 can also be started simultaneously, the length dimension of the required steel pipe truss is equal to the distance between the web member rib cutting device 8-2 and the steel pipe cutting device 8-3, namely the length dimension of the required steel pipe truss is a set distance, when the web member rib cutting device 8-2 cuts off the two web member ribs 101 of the steel pipe truss, the steel pipe cutting device 8-3 automatically cuts off the steel pipe 102, which is a working cycle, then the steel pipe truss continues to step by the step-by-step set distance through the steel pipe truss step-by-step clamping device 6-5, and when the next working cycle is carried out, the steel pipe cutting device 8-3 can cut off the steel pipe 102 at the cut-off position of the web member ribs 101, so that the required steel pipe truss can be cut off.

Compared with the prior art that the steel pipe truss needs to be cut, the steel pipe truss needs to be fixed manually, the length of the steel pipe truss needs to be measured, the steel pipe truss is cut at the corresponding position by a toothless saw, the operation mode needs to consume a large amount of manpower, the labor intensity is high, potential safety hazards exist, the processing efficiency is low, and the automation degree is low. The steel pipe truss cutting device 8-1 provided by the embodiment can cut the web member rib 101 to a fixed length, can cut the web member rib 101 and the steel pipe 102 synchronously, can ensure the required size, can remarkably improve the operation efficiency of the steel pipe truss cutting operation, can realize automatic operation, does not need manual participation, improves the automation degree, reduces the labor load, can ensure the cutting size precision, can effectively improve the working efficiency, ensures the stable product quality, and can reduce the environmental pollution.

Optionally, one of the web bar cutting device 8-2 and the steel pipe cutting device 8-3 may slide in the first direction of the steel pipe truss relative to the cutting base 8-10, and after the setting, when the required size of the steel pipe truss is different, the web bar cutting device 8-2 or the steel pipe cutting device 8-3 may be moved to make the distance between the web bar cutting device 8-2 and the steel pipe cutting device 8-3 equal to the required size of the steel pipe truss, so that the web bar cutting device 8-2 and the steel pipe cutting device 8-3 can simultaneously perform cutting operation on the steel pipe truss, and the processing efficiency of the steel pipe truss is improved.

As shown in fig. 33, 34, 35 and 41, the guide assembly 8-21 includes a guide block 8-211 fixed on the cutting base 8-10, the guide block 8-211 has two guide surfaces 8-2111 arranged at intervals and oppositely, the two guide surfaces 8-2111 can respectively guide the two web bars 101 to move in opposite directions, if the steel pipe truss deflects in the first direction during the first feeding process of the steel pipe truss, after the web bars 101 contact the guide block 8-211, the steel pipe truss can automatically correct the direction under the action of the two guide surfaces 8-2111, so that the two web bars 101 cross both sides of the guide block 8-211. It can be understood that the guide blocks 8-211, which are located between the two web bars 101 during the continuous feeding of the steel pipe truss, can limit the movement of the two web bars 101 to both sides, and also can serve as a guide. In this embodiment, the guide blocks 8 to 211 guide the steel pipe truss and also support the two web bars 101 in the vertical direction.

Optionally, the guide assembly 8-21 further comprises a guide bracket 8-212 fixedly arranged on the cutting base 8-10, and a guide groove member 8-213 slidably engaged with the guide bracket 8-212 in the vertical direction, the guide groove member 8-213 is arranged above the guide block 8-211 at intervals, and the guide groove member 8-213 is used for slidably engaging with the steel pipe 102. Specifically, the guide groove members 8 to 213 are provided with guide grooves extending along the first direction of the steel pipe truss, the guide grooves are used for being matched with the steel pipes 102 in the steel pipe truss, and a part of the steel pipes 102 is slidably located in the guide grooves, so that the steel pipes 102 can be restrained from jumping up and down and shaking left and right through the guide groove members 8 to 213, and then the first direction of the steel pipe truss can be restrained, and the stability of the steel pipe truss in the feeding process can be guaranteed. When steel pipe trusses with different heights need to be processed, the height of the guide groove members 8-213 relative to the guide brackets 8-212 can be adjusted to meet the height requirement of the steel pipe trusses, and the steel pipe truss processing device has high universality.

It should be noted that, after the height of the guide channel member 8-213 relative to the guide bracket 8-212 is adjusted, the relative positions of the guide channel member 8-213 and the guide bracket 8-212 are locked by the locking member.

As shown in fig. 33 to 40, the cutting assembly 8-22 comprises a driving motor 8-221 mounted on the cutting base 8-10, a driving shaft 8-222 in transmission connection with the driving motor 8-221, two crankshafts 8-223 connected with the driving shaft 8-222, two connecting arms 8-224 rotatably connected with the two crankshafts 8-223 respectively, two cutting arms 8-226 rotatably connected with the two connecting arms 8-224 respectively, and two movable cutters 8-227 mounted on the two cutting arms 8-226 respectively, wherein the two cutting arms 8-226 are rotatably connected with the cutting base 8-10. Specifically, a fifth vertical plate 8-11 and a sixth vertical plate 8-12 which are arranged along the first direction of the steel pipe truss at intervals are arranged on the cutting base 8-10, a driving motor 8-221 is installed on the sixth vertical plate 8-12, two ends of a driving shaft 8-222 are respectively installed on the fifth vertical plate 8-11 and the sixth vertical plate 8-12 through bearings in a rotating mode, the axes of two crankshafts 8-223 are parallel to the axes of the driving shafts 8-222, the distances between the two crankshafts 8-223 and the driving shafts 8-222 are equal, the axial direction of the driving shafts 8-222 is parallel to the first direction of the steel pipe truss, and the two crankshafts 8-223 are respectively located on two opposite sides of the driving shafts 8-222. The cutting base 8-10 is also provided with a fifth transverse plate 8-13 and a sixth transverse plate 8-14 at intervals, the two cutting arms 8-226 are respectively and rotatably arranged on the fifth transverse plate 8-13 and the sixth transverse plate 8-14 through connecting shafts 8-229, the cutting arms 8-226 are connected with the connecting arms 8-224 through knuckle bearings 8-225, the screw ends of the knuckle bearings 8-225 are screwed into the threaded holes of the connecting arms 8-224, and the fisheye ends of the knuckle bearings 8-225 are connected with the cutting arms 8-226. When the driving motor 8-221 rotates, the driving shaft 8-222 is driven to rotate, the driving shaft 8-222 drives the two crankshafts 8-223 to synchronously rotate, the two crankshafts 8-223 drive the two cutting arms 8-226 to rotate through the connecting arms 8-224 and the knuckle bearings 8-225, and the two cutting arms 8-226 drive the movable cutters 8-227 to move so as to cut off the web member rib 101.

It should be noted that, in the present embodiment, the cutting assemblies 8 to 22 perform the cutting operation on the web rib 101 at the center of the valley of the web rib 101. The pitch between two adjacent valleys or two adjacent peaks of the web rib 101 is a pitch, and the size of the steel pipe truss is required to be equal to an integral multiple of the pitch, so that the cutting assemblies 8 to 22 can be aligned with the valleys of the web rib 101 at each cutting operation. In this embodiment, the distance is set to be equal to an integral multiple of the pitch, so that after the web bar 101 is cut by the web bar cutting device 8-2, the position where the web bar 101 is cut can just reach the cutting blade 8-324 of the steel pipe cutting device 8-3 only by moving the distance of several pitches.

Optionally, as shown in fig. 41, two fixed cutters 8-228 are further installed on the guide blocks 8-211, and the two movable cutters 8-227 are respectively matched with the two fixed cutters 8-228 to cut off the two web bars 101, so that the cutting effect can be ensured.

As shown in fig. 33 to 38 and 41, the cutting assembly 8-32 includes a cutting support 8-321 mounted on the cutting base 8-10, a cutting elevator 8-322 mounted on the cutting support 8-321, a cutting base 8-3231 mounted on the cutting elevator 8-322, a cutter 8-323 mounted on the cutting base 8-3231, and a cutting blade 8-324 mounted on the cutter 8-323, wherein the cutting elevator 8-322 can drive the cutter 8-323 to move up and down in the vertical direction, and the cutter 8-323 can drive the cutting blade 8-324 to rotate. In this embodiment, the cutting elevator 8-322 drives the cutting machine base 8-3231 to move in the vertical direction, so as to drive the cutting machine 8-323 to move, and the cutting machine 8-323 drives the cutting blade 8-324 to cut off the steel pipe 102. Specifically, the cutting support 8-321 is provided with a lifter fixing plate 8-325, the cutting lifter 8-322 is arranged on the cutting fixing plate, a screw rod of the cutting lifter 8-322 is rotatably connected with the cutting machine base 8-3231, the screw rod extends in the vertical direction, and when the cutting lifter 8-322 drives the screw rod to rotate, the screw rod drives the cutting machine base 8-3231 and the cutting machine 8-323 to lift in the vertical direction. Wherein, the cutting sheets 8-324 adopt round brazing cutting sheets 8-324.

In order to ensure that the cutting machine base 8-3231 can stably and smoothly move along the vertical direction, the cutting assembly 8-32 further comprises a cutting slide rail 8-326 which is arranged on the cutting support 8-321 and extends along the vertical direction, and a cutting slide block 8-327 which is slidably arranged on the cutting slide rail 8-326, wherein the cutting slide block 8-327 is fixedly connected with the cutting machine base 8-3231, so that the cutting machine base 8-3231 can be ensured to stably and smoothly lift through the sliding fit of the cutting slide block 8-327 and the cutting slide rail 8-326. Preferably, the cutting slide rail 8-326 is arranged on the cutting bracket 8-321 through a slide rail mounting seat 8-328, and a base 3231 of the cutting machine 8-323 is fixedly connected with the cutting slide block 8-327.

In order to ensure the stability of the cutting support 8-321 in the cutting process, in this embodiment, the cutting base 8-10 is further provided with a support plate 8-16, and the support plate 8-16 is respectively connected with the cutting base 8-10 and the cutting support 8-321, so as to enhance the stability of the connection between the cutting support 8-321 and the cutting base 8-10, and also enhance the overall strength of the cutting support 8-321.

In order to ensure the cutting quality of the cutting assemblies 8 to 32 when cutting the steel pipe 102, the steel pipe truss needs to be fixed by the positioning assemblies 8 to 31 so as to prevent the steel pipe truss from shaking during the cutting process. In this embodiment, the positioning assembly 8-31 includes a support plate 8-311 for supporting the steel pipe 102, a steel pipe pressing block 8-312 disposed above the support plate 8-311, and a pressing driving part 8-313 installed on the cutting bracket 8-321, the pressing driving part 8-313 is in transmission connection with the steel pipe pressing block 8-312, and the pressing driving part 8-313 can drive the steel pipe pressing block 8-312 to press the steel pipe 102 to the support plate 8-311. Among them, the pressing drive means 8 to 313 is preferably a cylinder. Preferably, the supporting plates 8-311 are provided with sliding grooves extending along the first direction of the steel pipe truss, and the steel pipes 102 can be located in the sliding grooves. The position of the steel tube 102 can be further restricted in the cutting process through the sliding chute, so that the cutting quality is guaranteed.

In order to adapt to the heights of different steel pipe trusses, in the embodiment, the positioning assembly 8-31 further comprises a lifting mechanism 8-314 which is installed on the cutting base 8-10, the lifting mechanism 8-314 is in transmission connection with the supporting plate 8-311, and the lifting mechanism 8-314 can drive the supporting plate 8-311 to move in the vertical direction. The supporting plates 8-311 are driven by the lifting mechanisms 8-314 to move along the vertical direction so as to match steel pipe trusses with different heights, and the steel pipe truss vertical lifting device has a wide application range. Specifically, the cutting base 8-10 is provided with a guide fixing plate 8-15, the lifting mechanism 8-314 may include a motor and a lead screw in transmission connection with the motor, the motor is mounted on the guide fixing plate 8-15, the lead screw is rotatably connected with the support plate 8-311 and extends in the vertical direction, and when the motor rotates, the lead screw drives the support plate 8-311 to lift in the vertical direction. Preferably, in order to ensure the stability of the support plate 8-311 during the lifting, the positioning assembly 8-31 further comprises a plurality of guide posts 8-315, and the plurality of guide posts 8-315 are fixed on the support plate 8-311 and slidably connected with the guide fixing plate 8-15, so that the support plate 8-311 is prevented from rotating during the lifting.

Optionally, the positioning assembly 8-31 further comprises an adjusting plate 8-316 mounted on the cutting bracket 8-321, the adjusting plate 8-316 is provided with a fifth elongated hole 8-3161 extending in the vertical direction, and the connecting member passes through the fifth elongated hole 8-3161 and is connected with the pressing driving member 8-313. The connecting piece can be a bolt and the like, the connecting piece is in threaded connection with the driving base 8-3131 of the pressing driving part 8-313, when the connecting piece is unscrewed, the connecting piece can drive the pressing driving part 8-313 to move in the vertical direction to adjust the initial position of the pressing driving part 8-313, the pressing position of the steel pipe pressing block 8-312 can be adjusted, and meanwhile the steel pipe pressing block can be suitable for different height requirements of the steel pipe truss.

Optionally, a plurality of positioning assemblies 8-31 may be provided, the plurality of positioning assemblies 8-31 are arranged at intervals along the first direction of the steel pipe truss, and the cutting blade 8-324 may cut between any two adjacent positioning assemblies 8-31, so that the steel pipe truss can be stably positioned at both sides of the cutting blade 8-324 during cutting, and the gap between the two positioning assemblies 8-31 may be cleared for the cutting operation of the cutting blade 8-324. In the embodiment, the number of the positioning components 8 to 31 is two as an example.

The working process of the steel pipe truss cutting device 8-1 provided by the embodiment is as follows:

1. the position of the guide channel member 8-213 in the vertical direction with respect to the guide bracket 8-212 is adjusted to match the position of the guide channel member 8-213 with the height dimension of the steel pipe truss to be processed.

2. The supporting plate 8-311 is driven to move by the lifting mechanism 8-314, so that the position of the supporting plate 8-311 can be adapted to the height dimension of the steel pipe truss to be processed.

3. The position of the pressing driving part 8-313 relative to the adjusting plate 8-316 is adjusted in the vertical direction, so that the positions of the pressing driving part 8-313 and the steel pipe pressing block 8-312 can be adapted to the height dimension of the steel pipe truss to be processed.

4. The steel pipe truss is conveyed to the web member rib cutting device 8-2 through the steel pipe truss stepping clamping device 6-5, after the steel pipe truss is fed in place and reaches the required length size of the steel pipe truss, the center of the trough position of the web member rib 101 is over against the fixed cutter 8-228, then the driving motor 8-221 is started, the driving motor 8-221 drives the driving shaft 8-222 and the two crankshafts 8-223 to rotate simultaneously, the two crankshafts 8-223 drive the two oppositely arranged cutting arms 227 to move inwards simultaneously through the connecting arms 8-224 and the pipe joint bearing 225, the movable cutter 8-227 on the cutting arms 227 are matched with the fixed cutter 8-228, the two web member ribs 101 can be cut off simultaneously, and after the driving motor 8-221 rotates for one circle, the cutting arms 227 return to the initial position.

5. The steel pipe truss is continuously conveyed for a length of several pitches through the steel pipe truss stepping clamping device 6-5, so that the position where the web bar 101 is cut off reaches the cutting blade 8-324 of the steel pipe cutting device 8-3. In the front positioning assembly and the rear positioning assembly, the pressing driving part 8-313 drives the steel pipe pressing block 8-312 to press the steel pipe 102 on the supporting plate 8-311, then the cutting machine 8-323 is started, the cutting blade 8-324 starts to rotate, the cutting elevator 8-322 drives the cutting machine 8-323 to move downwards for a certain distance, meanwhile, the cutting blade 8-324 moves downwards for a certain distance along with the cutting blade 8-324, the cutting blade 8-324 cuts off the steel pipe 102, the cutting blade 8-324 stops rotating after the steel pipe 102 is cut off, then the cutting elevator 8-322 drives the cutting machine 8-323 to return, in the front positioning assembly and the rear positioning assembly, the pressing driving part 8-313 drives the steel pipe pressing block 8-312 to return, and then the next cycle is carried out.

As shown in fig. 42, the finished product collecting device 9-1 comprises a pulling mechanism 9-11, a material turning mechanism 9-12, a sliding frame 9-13 and a material receiving frame 9-14, wherein the pulling mechanism 9-11 can pull the cut steel pipe truss to the material turning mechanism 9-12 along a first direction, the sliding frame 9-13 and the material receiving frame 9-14 are sequentially arranged on the side of the material turning mechanism 9-12, the material turning mechanism 9-12 can drive the steel pipe truss to turn over and enable the steel pipe truss to fall onto the sliding frame 9-13, and the steel pipe truss can slide to the material receiving frame 9-14 along the sliding frame 9-13.

The material pulling mechanism 9-11 is arranged on the material pulling frame, and specifically, the material pulling mechanism 9-11 comprises a material pulling cylinder 9-111, a material clamping cylinder 9-112 and material pulling clamping jaws 9-113, wherein a cylinder body shell of the material pulling cylinder 9-111 is fixedly arranged on the material pulling frame, a cylinder rod of the material pulling cylinder 9-111 is horizontally arranged, a shell of the material clamping cylinder 9-112 is connected to a cylinder rod of the material pulling cylinder 9-111, a cylinder rod of the material clamping cylinder 9-112 is vertically arranged, and the material pulling clamping jaws 9-113 are arranged on cylinder rods of the material clamping cylinder 9-112. The material pulling clamping jaws 9-113 can clamp the cut steel bar truss under the driving of the material clamping cylinders 9-112, and after the clamping is finished, the material clamping cylinders 9-112, the material pulling clamping jaws 9-113 and the clamped steel bar truss can move to the material turning mechanism 9-12 along the first direction under the driving of the material pulling cylinders 9-111.

The material turning mechanism 9-12 specifically comprises a material turning frame, a material turning shaft 9-121 rotationally arranged on the material turning frame, a material turning plate 9-122 connected with the material turning shaft 9-121, and a material turning driving body 9-123 driving the material turning shaft 9-121 to rotate. Under the driving of the material turning driving bodies 9 to 123, the material turning shafts 9 to 121 can rotate, so that the material turning plates 9 to 122 on the material turning shafts are driven to rotate, and the material turning plates 9 to 122 can be rotated to shift the steel bar trusses to the sliding frames 9 to 13. Alternatively, the stirring driving bodies 9-123 may be stirring cylinders or stirring motors.

The sliding frame 9-13 comprises an inclined slide bar and a horizontal slide bar, one end of the inclined slide bar is connected with the side of the material turning frame, the other end of the inclined slide bar is obliquely and downwards arranged, and the horizontal slide bar is horizontally arranged and connected with one end, far away from the material turning frame, of the inclined slide bar. The steel bar trusses shifted by the material turning plates 9 to 122 can sequentially slide along the inclined slide rods and the horizontal slide rods, so that the steel bar trusses slide to the material receiving frames 9 to 14 positioned on one sides of the horizontal slide rods, far away from the inclined slide rods. Optionally, the receiving racks 9-14 are door-shaped frames.

Further, the number of the material turning plates 9-122 can be multiple, and the material turning plates 9-122 are arranged on the material turning shafts 9-121 at intervals. Correspondingly, the number of the sliding frames 9-13 and the receiving frames 9-14 can be multiple.

The finished product collecting device 9-1 can realize automatic collection of the steel pipe truss, and is higher in collecting efficiency and higher in safety compared with manual collection.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A steel pipe truss welding production line is characterized by comprising a web member rib pay-off device (1-1), a steel pipe feeding device (2-1), a web member rib straightening and bending device (3-1), a steel pipe conveying, clamping and stepping device (4-1), a steel pipe truss welding device (5-4), a steel pipe truss stepping clamping device (6-5), a shaping and widening device (7-1), a steel pipe truss cutting device (8-1) and a finished product collecting device (9-1) which are sequentially arranged along a first direction;

the number of the web member rib pay-off devices (1-1) is two, and the two web member rib pay-off devices (1-1) are respectively used for placing two coils of web member ribs (101) and can rotationally release the web member ribs (101) in a coil rod shape;

the web bar straightening and bending device (3-1) is used for carrying the web bar (101) conveyed by the web bar paying-off device (1-1), the web bar straightening and bending device (3-1) can straighten the web bar (101), bend the straightened web bar (101) into a wavy shape and convey the bent web bar (101) forward along the first direction for a preset distance, and the preset distance is equal to the pitch of the web bar;

a plurality of steel pipes (102) are stored in the steel pipe feeding device (2-1), and the steel pipe feeding device (2-1) can realize blanking one by one;

the steel pipe conveying and clamping stepping device (4-1) is used for receiving the steel pipe (102) conveyed by the steel pipe feeding device (2-1) and conveying the steel pipe (102) forwards for the preset distance along the first direction;

the steel pipe truss welding device (5-4) is used for simultaneously carrying the two bent web bar ribs (101) conveyed by the web bar rib straightening and bending device (3-1) and the steel pipe (102) conveyed by the steel pipe conveying and clamping stepping device (4-1), and respectively welding wave crests of the two web bar ribs (101) on two sides of the steel pipe (102) to form a steel pipe truss;

the steel pipe truss stepping clamping device (6-5) is used for receiving the steel pipe truss conveyed by the steel pipe truss welding device (5-4) and conveying the steel pipe truss forwards along the first direction;

the shaping and widening device (7-1) is used for receiving the steel pipe truss conveyed by the steel pipe truss stepping and clamping device (6-5) and adjusting the distance between the ends, far away from the steel pipe (102), of the two web bar ribs (101);

the steel pipe truss cutting device (8-1) is used for receiving the steel pipe truss conveyed by the shaping and widening device (7-1) and cutting the steel pipe truss at a preset position of the steel pipe truss,

the finished product collecting device (9-1) is used for collecting the cut steel pipe truss.

2. The steel pipe truss welding production line of claim 1,

the web member bar paying-off device (1-1) comprises a paying-off turntable (1-12) and a paying-off motor (1-11), the web member bar (101) in a wire rod shape is wound on the paying-off turntable (1-12), and the paying-off motor (1-11) is used for driving the paying-off turntable (1-12) to rotate so as to release the web member bar (101).

3. The steel pipe truss welding production line of claim 1,

the web bar straightening and bending device (3-1) comprises a straightening mechanism (3-2) and a bending mechanism (3-3);

the straightening mechanism (3-2) comprises a group of web bar straightening parts, two web bars (101) are straightened and conveyed by the group of web bar straightening parts at the same time, the web bar straightening parts comprise two mutually perpendicular straightening plates, two rows of rollers arranged at intervals are arranged on the straightening plates, and the web bars (101) can pass through the two rows of rollers;

the bending mechanism (3-3) comprises a web bar bending assembly and a web bar conveying assembly, the web bar bending assembly is used for receiving two web bars (101) conveyed by the straightening mechanism (3-2) and bending the two web bars (101) into a wavy shape, and the web bar conveying assembly is used for conveying the bent web bars (101) forwards.

4. The steel pipe truss welding production line of claim 3,

the web bar bending assembly comprises a bending driving assembly, and an upper bending swing arm (3-311) and a lower bending swing arm (3-312) which are arranged at intervals in the direction perpendicular to the first direction, and the bending driving assembly can drive the upper bending swing arm (3-311) and the lower bending swing arm (3-312) to swing so as to bend the web bar (101) conveyed between the upper bending swing arm (3-311) and the lower bending swing arm (3-312);

the web member rib conveying assembly comprises a conveying driving assembly, a driving gear disc (3-321), a driven gear disc (3-322), a chain (3-323) and a conveying pin shaft (3-324), wherein the axes of the driving gear disc (3-321) and the driven gear disc (3-322) are perpendicular to the first direction, the chain (3-323) is wound on the driving gear disc (3-321) and the driven gear disc (3-322), the conveying driving assembly can drive the driving gear disc (3-321) to rotate, the conveying pin shaft (3-324) is arranged on the chain (3-323), and the conveying pin shaft (3-324) can stir the bending part of the web member rib (101).

5. The steel pipe truss welding production line of claim 1,

the steel pipe feeding device (2-1) comprises a feeding frame (2-100), a guide mechanism (2-200), an ejection mechanism (2-300), a blanking mechanism (2-400) and a carrier roller mechanism (2-500);

the feeding frame (2-100) comprises a material storage platform (2-101), the material storage platform (2-101) is used for storing a plurality of steel pipes (102), the material storage platform (2-101) comprises a feeding end and a discharging end, and the height of the discharging end is lower than that of the feeding end;

the guide mechanism (2-200) comprises a guide pressing strip (2-201), the guide pressing strip (2-201) is arranged above the storage platform (2-101), and a guide channel for accommodating and guiding the steel pipes (102) is formed between the guide pressing strip (2-201) and the storage platform (2-101);

the ejection mechanism (2-300) is arranged at the discharge end of the storage platform (2-101), the ejection mechanism (2-300) comprises a driving structure (2-301) and an ejection plate (2-302), the output end of the driving structure (2-301) can lift along the vertical direction, the ejection plate (2-302) is arranged at the output end of the driving structure (2-301), an ejection inclined plane (2-3021) is arranged at the top of the ejection plate (2-302), a material blocking surface (2-3022) is arranged on one side of the ejection plate (2-302) close to the storage platform (2-101), and the ejection inclined plane (2-3021) can eject the steel pipe (102) at the discharge end when the ejection plate (2-302) lifts along the vertical direction, the material blocking surface (2-3022) can block the next steel pipe (102) rolling to the discharge end;

the blanking mechanism (2-400) is arranged at the discharge end of the material storage platform (2-101), the blanking mechanism (2-400) comprises a blanking baffle (2-401), a blanking inclined plane (2-4011) is arranged at the top of the blanking baffle (2-401), the blanking inclined plane (2-4011) is arranged at a preset height, and the steel pipe (102) on the ejection inclined plane (2-3021) can roll onto the blanking inclined plane (2-4011);

the carrier roller mechanism (2-500) is located on one side, far away from the feeding frame (2-100), of the blanking mechanism (2-400), the carrier roller mechanism (2-500) comprises a carrier roller frame, a carrier roller groove is formed in the carrier roller frame, and the steel pipe (102) on the blanking inclined plane (2-4011) can roll into the carrier roller groove.

6. The steel pipe truss welding production line of claim 5,

the steel pipe conveying and clamping stepping device (4-1) comprises a conveying mechanism (4-2), a pressing mechanism (4-6), a clamping mechanism (4-4) and a stepping mechanism (4-5), wherein the conveying mechanism (4-2), a carrier roller mechanism (2-500), the pressing mechanism (4-6) and the clamping mechanism (4-4) are sequentially arranged at intervals along the first direction, the conveying mechanism (4-2) is used for pushing the steel pipe (102) to move from the carrier roller mechanism (2-500) to the clamping mechanism (4-4), the pressing mechanism (4-6) is used for pressing or loosening the steel pipe (102), the clamping mechanism (4-4) is used for clamping the steel pipe (102), and the stepping mechanism (4-5) is used for driving the clamping mechanism (4-4) to move along the first direction The distance is preset.

7. The steel pipe truss welding production line of claim 1,

the steel pipe truss welding device (5-4) comprises welding pressing components (5-41), upper welding components (5-42) and steel pipe pressing components (5-43) which are sequentially arranged, the welding pressing components (5-41) can respectively press the bent parts of the two web bar ribs (101) on two opposite side surfaces of a pressing seat (5-416), the steel pipe pressing components (5-43) can press the steel pipe (102) between the two web bar ribs (101), and the upper welding components (5-42) can weld the steel pipe (102) and wave crests of the two web bar ribs (101).

8. The steel pipe truss welding production line of claim 1,

the steel pipe truss stepping clamping device (6-5) comprises a stepping driving assembly, stepping bottom plates (6-54) and upper clamping assemblies (6-51), the stepping driving assembly is used for driving the stepping bottom plates (6-54) to carry out fixed-length feeding along the first direction, the upper clamping assemblies (6-51) are arranged on the stepping bottom plates (6-54), and the upper clamping assemblies (6-51) are used for clamping the connecting positions of the steel pipes (102) and the web bar ribs (101) in the steel pipe truss.

9. The steel pipe truss welding production line of claim 1,

the shaping widening device (7-1) comprises a shaping driving body (7-11) and a shaping die (7-12), the output end of the shaping driving body (7-11) is arranged in the second direction perpendicular to the first direction, the shaping die (7-12) is in a wedge shape, the large-size end of the shaping die (7-12) is connected with the output end of the shaping driving body (7-11), the shaping die (7-12) is located below the steel pipe truss and moves to the two web bar ribs (101) of the steel pipe truss in the second direction to widen the distance between the end portions of the steel pipe (102) and the two web bar ribs (101).

10. The steel pipe truss welding production line of claim 1,

the steel pipe truss cutting device (8-1) comprises a cutting base (8-10), and a web member rib cutting device (8-2) and a steel pipe cutting device (8-3) which are arranged at intervals along the first direction, wherein the web member rib cutting device (8-2) and the steel pipe cutting device (8-3) are both arranged on the cutting base (8-10);

the web bar cutting device (8-2) comprises a guide assembly (8-21) for guiding the steel pipe truss to move along the first direction, and a cutting assembly (8-22) for synchronously cutting two web bars (101);

the steel pipe cutting device (8-3) comprises a positioning assembly (8-31) used for fixing the steel pipe (102) and a cutting assembly (8-32) used for cutting the steel pipe (102).

11. The steel pipe truss welding production line of claim 1,

the finished product collecting device (9-1) comprises a pulling mechanism (9-11), a turning mechanism (9-12), a sliding frame (9-13) and a material receiving frame (9-14), wherein the pulling mechanism (9-11) can pull the cut steel pipe truss to the turning mechanism (9-12) along the first direction, the sliding frame (9-13) and the material receiving frame (9-14) are sequentially arranged on the side of the turning mechanism (9-12), the turning mechanism (9-12) can drive the steel pipe truss to turn over and enable the steel pipe truss to fall onto the sliding frame (9-13), and the steel pipe truss can slide to the material receiving frame (9-14) along the sliding frame (9-13).