CN114798914A

CN114798914A - Steel bar truss and structural section forming die

Info

Publication number: CN114798914A
Application number: CN202210466013.2A
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: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-07-29

Abstract

The invention belongs to the technical field of truss processing, and discloses a steel bar truss and a structural section forming die. According to the invention, the connecting raised head is arranged on the structural section and is connected with the tooth-shaped reinforcing steel bar in a welding manner, so that the contact area between the structural section and the tooth-shaped reinforcing steel bar during welding is effectively reduced, the welding heating temperature is reduced, the structural deformation at high temperature is avoided, and the connecting quality and the forming quality of the steel bar truss are ensured.

Description

Steel bar truss and structural section forming die

Technical Field

The invention relates to the technical field of truss processing, in particular to a steel bar truss and a structural section forming die.

Background

The truss is a component widely applied to a steel structure, mainly bears tension or pressure, and has the advantages of less material consumption, high rigidity, light weight and the like compared with a solid web beam. The points of the truss at which the members are joined are called nodes (or nodes), and the truss can be divided into a plane truss and a space truss according to the axes of the members forming the truss and the distribution of the external force, wherein the plane truss is used in many cases. The spatial structure such as a roof truss or a bridge is composed of a series of plane trusses which are parallel to each other. Common trusses include steel trusses, reinforced concrete trusses, prestressed concrete trusses, wood trusses, steel and wood composite trusses, and the like.

Compared with the prior art, the novel angle iron truss is formed by welding tooth-shaped steel bars and angle irons, and the steel bars processed into the tooth shapes by means of top bending replace a plurality of rod pieces, so that the structure is simplified on the premise that the strength can be guaranteed, the manufacturing efficiency is improved, and the processing cost is saved.

However, in the process of manufacturing the angle iron truss, because the contact area between the bent tooth-shaped steel bar and the plane of the angle iron is too large, the welding current required by the angle iron and the plane of the angle iron is large, the welding time is long, the integral heating temperature of the angle iron and the steel bar is too high, the angle iron truss can be seriously bent and difficultly eliminated after welding, and the quality of the angle iron truss is seriously affected.

Disclosure of Invention

The invention aims to provide a steel bar truss and a structural section forming die, which can effectively reduce the contact area during welding.

In order to achieve the purpose, the invention adopts the following technical scheme:

a rebar truss comprising:

the structural section extends along a first direction to form a long strip shape, and a plurality of connecting raised heads are arranged on the structural section at intervals along the first direction;

and each corner connecting part of the tooth-shaped reinforcing steel bar is welded to one connecting raised head.

Preferably, the connecting projection is of a long strip shape, and the length direction of the connecting projection is parallel to the first direction.

Preferably, the width of the connecting raised head is D, the tooth-shaped reinforcing steel bar is formed by bending a reinforcing steel bar with the diameter of D, and D is more than D and less than 2D.

Preferably, the number of the structural profiles is two, the two structural profiles are parallel to each other and are arranged at intervals, the connecting raised heads on the two structural profiles are staggered along the first direction, and the connecting parts of the two adjacent corners on the tooth-shaped reinforcing steel bars are respectively welded to the connecting raised heads of the two structural profiles.

Preferably, the connecting projections are arranged on supporting surfaces of the structural profiles, the supporting surfaces of the two structural profiles are located in the same plane, the corner connecting portions are located on one side of the connecting projections in a second direction, the second direction is perpendicular to the first direction, and the tooth-shaped reinforcing steel bars abut against the supporting surfaces.

Preferably, the structural section is angle iron, the angle iron comprises two strip plate bodies, the two strip plate bodies are connected in a mutually perpendicular mode, and the connecting raised heads are arranged on the strip plate bodies.

A structural section forming die for forming the structural section of the steel bar truss comprises:

the first stamping die set is provided with a first stamping surface, the width of the first stamping surface is smaller than that of the structural section, and the first stamping surface is provided with a stamping groove;

the second stamping die set is provided with a second stamping surface, the width of the second stamping surface is larger than that of the structural section, the second stamping surface is provided with a stamping head, and when the structural section is clamped between the first stamping surface and the second stamping surface, the stamping head and the stamping groove can stamp and form the connecting raised head on the structural section.

Preferably, the first stamping die set comprises a first connecting head and a first stamping seat, the stamping groove is arranged on the first stamping seat, the first stamping seat is detachably connected with the first connecting head, and the first connecting head is configured to be connected with a stamping mechanism.

Preferably, the first connector is cylindrical, a first mounting groove is formed in the end face of one end of the first connector in a penetrating mode along the radial direction, and the first stamping seat portion is clamped in the first mounting groove.

Preferably, the second stamping module comprises a second connector and a second stamping seat, the stamping head is arranged on the second stamping seat, the second stamping seat is detachably connected to the second connector, and the second connector is configured to be connected to a stamping mechanism.

The invention has the beneficial effects that:

the connecting raised head is arranged on the structural section and is connected with the tooth-shaped reinforcing steel bar in a welding mode, so that the contact area between the structural section and the tooth-shaped reinforcing steel bar during welding is effectively reduced, the welding heating temperature is reduced, structural deformation at high temperature is avoided, and the connecting quality and the forming quality of the steel bar truss are guaranteed.

Drawings

Fig. 1 is a schematic structural view of a steel bar truss according to an embodiment of the present invention;

fig. 2 is a top view of a steel bar truss according to an embodiment of the present invention;

fig. 3 is a side view of a steel bar truss according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a structural profile according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a structural profile forming die according to an embodiment of the present invention;

FIG. 6 is a schematic view of a first stamping die set and a second stamping die set according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a first stamping die set according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of the first stamping die set in another direction according to the embodiment of the present invention;

FIG. 9 is a schematic view of a second stamping die set according to an embodiment of the present invention;

fig. 10 is a schematic structural view of another direction of the second stamping die set according to the embodiment of the present invention.

In the figure:

1. a structural profile; 11. connecting the raised head;

2. tooth-shaped reinforcing steel bars; 21. a corner connecting portion;

100. a first stamping module; 101. a first stamping surface; 102. punching a groove; 110. a first connector; 120. a first punch holder;

200. a second stamping module; 201. a second stamping surface; 202. punching a head; 210. a second connector; 220. a second punch holder;

300. a stamping mechanism; 301. processing a tank; 310. a processing platform; 320. a support arm.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, and may also include the first feature and the second feature not being in direct contact but being in contact via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 4, the present invention provides a steel bar truss including a structural section 1 and a tooth-shaped steel bar 2. The structural section 1 extends along a first direction to form a long strip, a plurality of connecting raised heads 11 are arranged on the structural section 1 at intervals along the first direction, and each corner connecting part 21 of the tooth-shaped reinforcing steel bar 2 is welded to one connecting raised head 11.

According to the invention, the connecting raised head 11 is arranged on the structural section 1, and the connecting raised head 11 is connected with the tooth-shaped steel bar 2 in a welding manner, so that the contact area between the structural section 1 and the tooth-shaped steel bar 2 during welding is effectively reduced, the welding heating temperature is reduced, the structural deformation at high temperature is avoided, and the connecting quality and the forming quality of the steel bar truss are ensured.

Specifically, the coupling projection 11 is elongated, and the length direction of the coupling projection 11 is parallel to the first direction. The connecting raised head 11 is arranged to be long, so that the alignment difficulty of the tooth-shaped steel bar 2 and the connecting raised head 11 is reduced, and the processing efficiency is improved.

More specifically, as indicated by D and D marked in fig. 2, the coupling boss 11 has a width D, the toothed reinforcing bar 2 is formed by bending a reinforcing bar having a diameter D, D < 2D. By limiting the width of the connecting raised head 11, the insufficient width of the connecting raised head 11 and the insufficient connection strength of the tooth-shaped reinforcing steel bar 2 are avoided, and the overhigh temperature of welding heating caused by the overlarge width of the connecting raised head 11 is avoided.

Specifically, two structural profiles 1 are arranged, the two structural profiles 1 are parallel to each other and are arranged at intervals, the connecting raised heads 11 on the two structural profiles 1 are staggered along a first direction, and two adjacent corner connecting portions 21 on the tooth-shaped reinforcing steel bar 2 are respectively welded to the connecting raised heads 11 of the two structural profiles 1.

More specifically, the connecting projections 11 are arranged on the supporting surfaces of the structural profiles 1, the supporting surfaces of the two structural profiles 1 are located in the same plane, in a second direction, the corner connecting portion 21 is partially located on one side, away from the other structural profile 1, of the connecting projection 11 of one structural profile 1, the second direction is perpendicular to the first direction, and the tooth-shaped reinforcing steel bar 2 abuts against the supporting surfaces. Through the arrangement, the corner connecting part 21 of the tooth-shaped steel bar 2 partially exceeds the connecting raised head 11, and after welding is completed, the connecting raised head 11 can be hooked and pulled in the width direction of the steel bar truss, so that the structural strength of the steel bar truss in the width direction is improved.

In this embodiment, structural section 1 is the angle bar, and the angle bar includes two rectangular plate bodies, and two rectangular plate body mutually perpendicular connect, and the inboard face of a rectangular plate is the holding surface, connects plush copper 11 and sets up on this rectangular plate body.

As shown in fig. 5 to 10, the present invention further provides a structural section forming mold for forming the structural section 1 of the steel bar truss, including a first stamping die set 100 and a second stamping die set 200. The first stamping die set 100 is provided with a first stamping surface 101, the width of the first stamping surface 101 is smaller than that of the structural profile 1, the first stamping surface 101 is provided with a stamping groove 102, the second stamping die set 200 is provided with a second stamping surface 201, the width of the second stamping surface 201 is larger than that of the structural profile 1, the second stamping surface 201 is provided with a stamping head 202, and when the structural profile 1 is clamped by the first stamping surface 101 and the second stamping surface 201, the stamping head 202 and the stamping groove 102 can stamp and form the connecting raised head 11 on the structural profile 1.

In the structural section forming die, the structural section 1 with the connecting raised head 11 is formed by the first stamping die set 100 and the second stamping die set 200, so that the contact area can be effectively reduced when the structural section 1 is welded with the tooth-shaped reinforcing steel bar 2.

In the present embodiment, the length direction of the first stamping surface 101 is parallel to the length direction of the second stamping surface 201, the stamping groove 102 is long and the length direction is parallel to the length direction of the first stamping surface 101, and the stamping head 202 is long and the length direction is parallel to the length direction of the second stamping surface 201.

Specifically, the first stamping module 100 includes a first connection head 110 and a first stamping seat 120, the first stamping surface 101 and the stamping groove 102 are disposed on the first stamping seat 120, the first stamping seat 120 is detachably connected to the first connection head 110, and the first connection head 110 is configured to be connected to the stamping mechanism 300. Through the arrangement, the first punching seat 120 with the punching grooves 102 with different sizes and specifications can be replaced according to actual requirements.

More specifically, the first connector 110 is cylindrical, a first mounting groove is radially formed on an end surface of one end of the first connector 110 in a penetrating manner, and a portion of the first punch holder 120 is clamped in the first mounting groove. By providing the first mounting groove, the first punch holder 120 can be positionally adjusted in a radial direction of the first coupling head 110.

In this embodiment, the first connection head 110 and the first stamping seat 120 are detachably connected by a screw, a connection hole is formed in the first connection head 110, and a threaded hole is formed in the first stamping seat 120.

Specifically, the second stamping module 200 includes a second connector 210 and a second stamping seat 220, the second stamping surface 201 and the stamping head 202 are disposed on the second stamping seat 220, the second stamping seat 220 is detachably connected to the second connector 210, and the second connector 210 is configured to be connected to the stamping mechanism 300. Through the arrangement, the second punching seat 220 with the punching heads 202 with different sizes can be replaced according to actual requirements.

More specifically, the second connector 210 is cylindrical, a cylindrical second mounting groove is formed in an end surface of one end of the second stamping seat 220, and a portion of the second connector 210 is clamped in the second mounting groove. Through the arrangement of the second mounting groove, the second punching seat 220 can rotate in the circumferential direction of the second connector 210 for position adjustment.

In this embodiment, the second connector 210 and the second stamping seat 220 are detachably connected by screws, a connecting hole is formed in the second connector 210, and a threaded hole is formed in the second stamping seat 220.

Optionally, the structural section forming die further includes a stamping mechanism 300, the stamping mechanism 300 is provided with a processing groove 301, the first stamping die set 100 and the second stamping die set 200 are respectively disposed in the processing groove 301, and the structural section 1 is worked in the processing groove 301 to stamp-form the connecting boss 11.

Specifically, be provided with processing platform 310 on punching press mechanism 300 and set up in the support arm 320 of processing platform 310 top, support arm 320 encloses to establish on processing platform 310 and forms processing groove 301, first punching press module 100 sets up on support arm 320, second punching press module 200 sets up on processing platform 310, punching press mechanism 300 passes through hydraulic system drive second punching press module 200 and removes towards first punching press module 100, hydraulic system's relevant structure and theory of operation are the conventional setting in this field, no longer describe herein, except that hydraulic system, punching press mechanism 300 can also adopt other transmission systems, like motor drive's rack and pinion system etc., drive second punching press module 200.

More specifically, the supporting arm 320 is provided with a clamping groove, and the first connector 110 of the first stamping module 100 is detachably clamped in the clamping groove, so as to facilitate disassembly, assembly and maintenance.

It should be understood that the above-described embodiments of the present invention are merely 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 rebar truss, comprising:

the structural section bar (1) extends along a first direction to form a long strip shape, and a plurality of connecting raised heads (11) are arranged on the structural section bar (1) at intervals along the first direction;

each corner connecting part (21) of the tooth-shaped reinforcing steel bar (2) is welded to one connecting raised head (11).

2. The reinforcing bar truss as claimed in claim 1, wherein the coupling bosses (11) have a long bar shape, and a length direction of the coupling bosses (11) is parallel to the first direction.

3. The steel bar truss according to claim 2, wherein the width of the coupling projection (11) is D, and the tooth-shaped steel bars (2) are formed by bending steel bars with a diameter D, D < 2D.

4. The steel bar truss according to claim 1, wherein there are two structural sections (1), two structural sections (1) are arranged in parallel and spaced apart from each other, the connecting protrusions (11) on two structural sections (1) are staggered along the first direction, and two adjacent corner connecting portions (21) on the tooth-shaped steel bar (2) are welded to the connecting protrusions (11) of two structural sections (1), respectively.

5. A steel bar truss as claimed in claim 4, wherein said coupling noses (11) are arranged on a support surface of the structural profiles (1), the support surfaces of both structural profiles (1) lying in the same plane, and the corner coupling portions (21) are partly located on one side of the coupling noses (11) in a second direction, which is perpendicular to the first direction, against which support surface the tooth-shaped steel bars (2) abut.

6. A steel bar truss according to claim 1, wherein the structural section bar (1) is an angle bar, the angle bar comprises two elongated plates, the two elongated plates are connected perpendicularly to each other, and the connecting projection (11) is provided on one of the elongated plates.

7. A structural section forming die, characterized in that the structural section (1) for forming the steel bar truss according to any one of claims 1 to 6 comprises:

the structure comprises a first stamping die set (100), wherein a first stamping surface (101) is arranged on the first stamping die set (100), the width of the first stamping surface (101) is smaller than that of the structural section (1), and a stamping groove (102) is arranged on the first stamping surface (101);

the connecting boss comprises a second stamping die set (200), wherein a second stamping surface (201) is arranged on the second stamping die set (200), the width of the second stamping surface (201) is larger than that of the structural profile (1), a stamping head (202) is arranged on the second stamping surface (201), and when the structural profile (1) is clamped between the first stamping surface (101) and the second stamping surface (201), the stamping head (202) and the stamping groove (102) can stamp and form the connecting boss (11) on the structural profile (1).

8. The structural profile forming die according to claim 7, wherein the first stamping die set (100) comprises a first connection head (110) and a first stamping seat (120), the stamping groove (102) being provided on the first stamping seat (120), the first stamping seat (120) being detachably connected to the first connection head (110), the first connection head (110) being configured to be connected to a stamping mechanism (300).

9. The structural profile forming die according to claim 8, wherein the first connector (110) is cylindrical, a first mounting groove is radially arranged on an end surface of one end of the first connector (110) in a penetrating manner, and the first stamping seat (120) is partially clamped in the first mounting groove.

10. The structural profile forming die according to claim 7, wherein the second stamping die set (200) comprises a second connecting head (210) and a second stamping seat (220), the stamping head (202) is arranged on the second stamping seat (220), the second stamping seat (220) is detachably connected to the second connecting head (210), and the second connecting head (210) is configured to be connected to a stamping mechanism (300).