Steel bar truss welding point clamping and anti-open welding device and steel bar truss processing equipment

Abstract

The present invention belongs to the technical field of steel bar truss processing equipment, and discloses a steel bar truss welding point clamping and anti-open welding device and steel bar truss processing equipment. The steel bar truss welding point clamping and anti-open welding device includes a clamping frame, two driving members symmetrically installed on the clamping frame and running synchronously, a clamping arm driven to rotate by the driving member, and a clamping block installed on the clamping arm. The two clamping blocks can clamp the welding points of the steel bar truss under the drive of the two driving members. Through the above structure, when the steel bar truss is widened, the driving member can drive the clamping arm to rotate, and the two clamping arms rotate while driving the two clamping blocks to approach and clamp and fix the welding points of the steel bar truss, thereby preventing the welding points from opening, making the welding quality of the processed steel bar truss reliable, and the welding strength of the finished product meets the requirements.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar truss processing equipment, and in particular to a steel bar truss welding point clamping and anti-open welding device and steel bar truss processing equipment. Background Art

[0002] The steel truss mainly includes upper chord steel bars, lower chord steel bars and web steel bars, which are formed by welding.

[0003] With the continuous development of steel trusses in construction technology, their application is becoming more and more extensive. Therefore, the demand for some special specifications of steel trusses is increasing day by day, so higher requirements are put forward for the production capacity of steel truss processing equipment. For example, when there is a demand for special specifications of steel trusses with a wider width or lower height than standard steel trusses, the standard steel trusses need to be widened. However, when the existing production equipment widens the steel trusses, the welding points at the crests of the steel trusses will have the problem of open welding, resulting in unreliable welding quality of the welding points of the steel trusses. In serious cases, the steel trusses cannot be used.

[0004] Therefore, there is an urgent need for a device that can ensure that welding points are not cracked when producing special-specification steel trusses so that the welding strength of the finished steel trusses meets the requirements. Summary of the invention

[0005] The purpose of the present invention is to provide a steel bar truss welding point clamping and anti-open welding device and steel bar truss processing equipment, which can clamp the welding points at the crests of the steel bar truss when producing special specifications of steel bar trusses, thereby ensuring that the welding points do not open.

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

[0007] A device for clamping and preventing weld opening at welding points of a steel truss comprises a clamping frame, two driving members symmetrically mounted on the clamping frame and operating synchronously, a clamping arm driven to rotate by the driving members, and a clamping block mounted on the clamping arm. The two clamping blocks can clamp the welding points of the steel truss under the drive of the two driving members.

[0008] Preferably, it also includes two clamping arm movable shafts and a clamping arm fixed shaft, the clamping arm movable shaft is connected to the output end of the driving member, the clamping arm fixed shaft is installed on the clamping frame, one end of the two clamping arms is respectively connected to one of the clamping arm movable shafts, and the other ends are rotatably connected to the clamping arm fixed shaft.

[0009] Preferably, two groups of the clamping arms are provided, and the two groups of the clamping arms are symmetrically arranged on both sides of the clamping frame.

[0010] Preferably, it further comprises a fixed shaft seat, wherein the fixed shaft seat is installed in the clamping frame, and the clamping arm fixed shaft is fixedly disposed through the fixed shaft seat.

[0011] Preferably, the clamping frame is provided with a first elongated hole in the longitudinal direction, and the position of the fixed shaft seat is adjustable through the first elongated hole.

[0012] Preferably, it further comprises a fixing seat, which is mounted on the upper end of the clamping frame, and the non-output end of the driving member is hinged to the fixing seat.

[0013] Preferably, the clamping frame is provided with a second elongated hole in the longitudinal direction, and the position of the fixing seat is adjustable through the second elongated hole.

[0014] Preferably, a hole is formed at one end of the clamping arm, the clamping arm fixing shaft is arranged through the hole, and a pressure cover is fixed to the end of the clamping arm fixing shaft, and the pressure cover is used to limit the axial movement of the clamping arm.

[0015] Preferably, the driving member is a cylinder.

[0016] The present invention also provides a steel bar truss processing equipment, including the above-mentioned steel bar truss welding point clamping and anti-open welding device and a bending device, the bending device includes a bending movable mold, the bending movable mold is used to widen the trough of the steel bar truss, and when the bending movable mold is widened, the steel bar truss welding point clamping and anti-open welding device presses the welding point at the crest of the steel bar truss.

[0017] The beneficial effects of the present invention are as follows: through the above structure, when the steel truss is widened, the driving member can drive the clamping arm to rotate. When the two clamping arms rotate, they drive the two clamping blocks to approach and clamp the welding points of the steel truss, thereby preventing the welding points from opening, making the welding quality of the processed steel truss reliable and the welding strength of the finished product meet the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the device for clamping and preventing weld opening at welding points of a steel bar truss provided by the present invention;

[0019] Figure 2 It is a schematic diagram of the state of the steel bar truss processing equipment provided by the present invention when it is not in widening operation;

[0020] Figure 3 It is a schematic diagram of the state of the steel bar truss processing equipment provided by the present invention when it is in a widening operation;

[0021] Figure 4 It is a structural schematic diagram of the bending assembly of the steel bar truss processing equipment provided by the present invention.

[0022] In the figure:

[0023] 1. Clamping frame; 11. First elongated hole; 12. Second elongated hole; 2. Driving member; 3. Clamping arm; 4. Clamping block; 5. Clamping arm movable shaft; 6. Clamping arm fixed shaft; 7. Fixed shaft seat; 8. Fixed seat; 9. Pressure cover; 10. Clamping and anti-opening device for welding point of steel truss; 20. Bending device; 201. Bending movable mold; 202. Pressing plate; 203. Roller bracket; 204. Linear slider; 205. Lifting frame; 206. Adjusting screw; 207. Base; 208. Power device; 209. Bending connector; 210. Camshaft; 211. Roller; 212. Adjusting pin; 213. Supporting pin; 100. Steel truss. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] The present invention provides a device 10 for clamping and preventing weld opening at welding points of a steel truss, which can press and fix the welding points of the steel truss 100 (which can be welding points at the wave crests of the steel truss 100) when processing a steel truss 100 of special specifications, so as to avoid weld opening at the welding points, thereby affecting the welding quality of the finished steel truss 100 and improving the welding reliability of the steel truss 100.

[0029] like Figure 1 As shown, the steel bar truss welding point clamping and anti-open welding device 10 includes a clamping frame 1, two driving members 2, a clamping arm 3 and a clamping block 4, wherein the two driving members 2 are installed on the clamping frame 1, and each driving member 2 drives a clamping arm 3 to drive the clamping arm 3 to rotate, and the clamping block 4 is installed on the clamping arm 3, and the two clamping blocks 4 can approach each other when the two clamping arms 3 rotate to contact and clamp the welding points of the steel bar truss 100 to prevent the welding points from opening.

[0030] In this embodiment, the clamping frame 1 presents an internal hollow structure, one end of the driving member 2 is placed in the clamping frame 1, and illustratively, a fixing seat 8 may be installed at the internal upper end of the clamping frame 1, and the non-output end of the driving member 2 is hinged on the fixing seat 8. Preferably, the fixing seat 8 is installed in the clamping frame 1 in an adjustable longitudinal position, and it may be that a second elongated hole 12 is opened in the longitudinal direction on the clamping frame 1, and the fixing seat 8 is fixed to the fixing seat 8 by passing a bolt through the second elongated hole 12, so as to realize a fixed connection between the fixing seat 8 and the clamping frame 1. Moreover, the longitudinal position of the fixing seat 8 can also be adjusted through the second elongated hole 12. By adjusting the position of the fixing seat 8, the position of the driving member 2 can be adjusted to adapt to steel trusses 100 of different heights.

[0031] The driving member 2 is symmetrically mounted on the fixing seat 8, and the driving member 2 is preferably a component with linear driving capability such as a cylinder. The extension of the driving member 2 can drive the clamping arm 3 to rotate, thereby making the two clamping blocks 4 approach each other to clamp the welding point of the steel truss 100. It should be pointed out that the two driving members 2 should be extended and retracted synchronously to achieve the synchronous movement of the two clamping blocks 4, thereby better clamping the steel truss 100.

[0032] Preferably, the output end of the driving member 2 is hinged with a clamping arm movable shaft 5, one end of the clamping arm 3 is connected to the clamping arm movable shaft 5, and the other end of the clamping arm 3 is rotatably connected to a clamping arm fixed shaft 6, which is installed on the clamping frame 1. When the driving member 2 drives the clamping arm movable shaft 5 to extend and retract, the clamping arm movable shaft 5 drives the clamping arm 3 to rotate relative to the clamping arm fixed shaft 6, and the clamping arm 3 synchronously drives the clamping block 4 to rotate. Since the two clamping arms 3 are synchronously driven to rotate, the two clamping blocks 4 can approach each other and clamp the welding points of the steel bar truss 100.

[0033] It should be pointed out that the other ends of the clamping arms 3 driven by the two driving members 2 are both rotatably connected to a clamping arm fixed shaft 6 , so as to further improve the synchronization of the rotation of the two clamping arms 3 .

[0034] In the present embodiment, a fixed shaft seat 7 is also installed at the lower end inside the clamping frame 1, and the fixed shaft seat 7 is used to install the fixed clamping arm fixed shaft 6. Optionally, the fixed shaft seat 7 is installed in the clamping frame 1 with adjustable position, and it can be that the clamping frame 1 is provided with a first elongated hole 11 along the longitudinal direction, and is fixed to the fixed shaft seat 7 by bolts passing through the first elongated hole 11, so as to realize the fixed connection between the fixed shaft seat 7 and the clamping frame 1. Moreover, the longitudinal position of the fixed shaft seat 7 can also be adjusted through the first elongated hole 11. And through the position adjustment of the fixed shaft seat 7, the longitudinal position adjustment of the clamping arm 3 can be realized, and then the longitudinal position adjustment of the clamping block 4 can be realized, so as to adapt to the steel trusses 100 of different heights. In the present embodiment, two first elongated holes 11 are provided to better realize the longitudinal adjustment of the fixed shaft seat 7.

[0035] In addition, by adjusting the position of the fixed shaft seat 7 in coordination with the position of the fixed seat 8, the driving member 2 and the clamping arm 3 can be adjusted longitudinally synchronously, thus avoiding the situation where the two are stuck and cannot be adjusted during the adjustment process. Of course, it is understandable that only one of the fixed shaft seat 7 and the fixed seat 8 can be adjusted in position, and the clamping angle of the clamping block 4 can be adjusted in this case to adapt to the clamping of the welding points of the steel bar trusses 100 of different widths.

[0036] In this embodiment, the above-mentioned clamping arm 3 is provided with two groups, and the two groups of clamping arms 3 are symmetrically arranged on both sides of the clamping frame 1. And each group of clamping arms 3 includes two clamping arms 3, that is, the clamping blocks 4 on each group of clamping arms 3 can realize the clamping and fixing of the welding points of the steel bar truss 100. It should be pointed out that the two clamping arms 3 in the two groups of clamping arms 3 with opposite positions are connected to the same clamping arm movable shaft 5, and the other two clamping arms 3 in opposite positions are connected to another clamping arm movable shaft 5. The clamping arm fixed shaft 6 is fixedly penetrated on the fixed shaft seat 7 and exposed at both ends of the fixed shaft seat 7, wherein the two clamping arms 3 of one group are rotatably connected to one end of the clamping arm fixed shaft 6, and the two clamping arms 3 of the other group are rotatably connected to the other end of the clamping arm fixed shaft 6. In other words, through the two clamping arm movable shafts 5 and the one clamping arm fixed shaft 6, the synchronous rotation of the two groups of clamping arms 3 can be realized, and the clamping and fixing of the two adjacent welding points at the crest of the steel bar truss 100 can be realized.

[0037] In the present embodiment, a hole is provided at one end of the clamping arm 3 which is rotatably connected to the clamping arm fixing shaft 6, and the clamping arm fixing shaft 6 is arranged through the hole, and a pressure cover 9 is fixed to the end of the clamping arm fixing shaft 6, and the pressure cover 9 abuts against one side of the clamping arm 3. Through the pressure cover 9, the axial movement of the same group of clamping arms 3 can be limited.

[0038] The present invention also provides a steel bar truss processing equipment, such as Figure 2 and Figure 3 As shown, the steel bar truss processing equipment includes the above-mentioned steel bar truss welding point clamping and anti-weld opening device 10 and the bending device 20, wherein the clamping frame 1 of the steel bar truss welding point clamping and anti-weld opening device 10 is fixed on the bending device 20, and the bending device 20 is used to widen the trough of the steel bar truss 100, and when the bending device 20 is widened, the steel bar truss welding point clamping and anti-weld opening device 10 presses the welding point at the peak of the steel bar truss 100.

[0039] like Figure 4 As shown, the bending assembly 20 includes a bending movable mold 201, a pressure plate 202, a roller bracket 203, a linear slider 204, a lifting frame 205, an adjusting screw 206, a base 207, a power device 208, a bending connector 209, a camshaft 210, a roller 211, an adjustment pin 212 and a support pin 213.

[0040] The bending movable mold 201 is fixed on the roller bracket 203 through the pressing plate 202. The bending movable mold 201, the pressing plate 202 and the roller bracket 203 are installed symmetrically. The guide rail of the linear slider 204 is fixed to the roller bracket 203. The slider of the linear slider 204 is fixed to the lifting frame 205. One end of the lifting frame 205 is connected to the base 207 through the support pin 213, and the other end is connected to the adjusting screw 206. The other end of the adjusting screw 206 is connected to the base 207 through the adjusting pin 212. 07, and the lifting frame 205 can adjust its tilt angle by adjusting the screw 206 by screwing in the length of the adjusting pin 212. One end of the power device 208 is fixed on the base 207, and the movable part of the other end is connected to one end of the bending connection piece 209. The other end of the bending connection piece 209 is connected to the camshaft 210. The camshaft 210 is installed on the base 207 and can rotate freely in the radial direction. The roller 211 is installed on the roller bracket 203 and keeps contact with the cam part of the camshaft 210.

[0041] When the bending assembly 20 is working, the power device 208 is started, and the camshaft 210 is driven to rotate through the bending connector 209. The two cam parts of the camshaft 210 push the rollers 211 on the left and right sides respectively, so that the roller bracket 203 moves to the left and right sides, thereby driving the bending movable molds 201 on the left and right sides to pull the trough of the steel truss 100 to expand to both sides, completing the widening process of the steel truss 100. In order to prevent the welding point at the crest of the steel truss 100 from opening, the driving member 2 drives the clamping arm 3 to rotate a certain angle with the clamping arm fixed axis 6 as the center through the clamping arm movable axis 5, so that the clamping blocks 4 fixed on the two clamping arms 3 in the same group are close to each other, squeezing and fixing the crest welding point of the steel truss 100, and ensuring that the welding point does not open.

[0042] Obviously, the above 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. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A steel bar truss processing equipment, comprising a steel bar truss welding point clamping and anti-open welding device, the steel bar truss welding point clamping and anti-open welding device comprising a clamping frame (1), two driving members (2) symmetrically mounted on the clamping frame (1) and running synchronously, the clamping frame (1) is an internally hollow structure, one end of the driving member (2) is placed in the clamping frame (1), a clamping arm (3) driven to rotate by the driving member (2), and a clamping block (4) mounted on the clamping arm (3), the two clamping blocks (4) can clamp the welding point of the steel bar truss (100) under the drive of the two driving members (2), characterized in that: The steel bar truss processing equipment comprises: The steel bar truss welding point clamping and anti-welding device (10) and the bending device (20), the bending device (20) comprising a bending movable die (201), the bending movable die (201) being used to perform a widening process on the trough of the steel bar truss (100), and when the bending movable die (201) is widened, the steel bar truss welding point clamping and anti-welding device (10) presses the welding point at the crest of the steel bar truss (100).

2. The steel bar truss processing equipment according to claim 1, characterized in that: It also includes two clamping arm movable shafts (5) and a clamping arm fixed shaft (6), wherein the clamping arm movable shaft (5) is connected to the output end of the driving member (2), and the clamping arm fixed shaft (6) is installed on the clamping frame (1), and one end of the two clamping arms (3) is respectively connected to one of the clamping arm movable shafts (5), and the other end is rotatably connected to the clamping arm fixed shaft (6).

3. The steel bar truss processing equipment according to claim 2, characterized in that: The clamping arms (3) are provided in two groups, and the two groups of clamping arms (3) are symmetrically arranged on both sides of the clamping frame (1).

4. The steel bar truss processing equipment according to claim 2, characterized in that: It also comprises a fixed shaft seat (7), wherein the fixed shaft seat (7) is installed in the clamping frame (1), and the clamping arm fixed shaft (6) is fixedly arranged through the fixed shaft seat (7).

5. The steel bar truss processing equipment according to claim 4, characterized in that: The clamping frame (1) is provided with a first elongated hole (11) in the longitudinal direction, and the position of the fixed shaft seat (7) is adjustable through the first elongated hole (11).

6. The steel bar truss processing equipment according to any one of claims 1 to 5, characterized in that: It also comprises a fixing seat (8), the fixing seat (8) being mounted on the upper end of the clamping frame (1), and the non-output end of the driving member (2) being hinged to the fixing seat (8).

7. The steel bar truss processing equipment according to claim 6, characterized in that: The clamping frame (1) is provided with a second elongated hole (12) in the longitudinal direction, and the position of the fixing seat (8) is adjustable through the second elongated hole (12).

8. The steel bar truss processing equipment according to any one of claims 2 to 5, characterized in that: A hole is formed at one end of the clamping arm (3), the clamping arm fixing shaft (6) is arranged through the hole, and a pressure cover (9) is fixed to the end of the clamping arm fixing shaft (6), the pressure cover (9) being used to limit the axial movement of the clamping arm (3).

9. The steel bar truss processing equipment according to claim 8, characterized in that: The driving member (2) is a cylinder.

Images