A steel bar head welding device for steel bar truss

Abstract

The present invention relates to a steel bar head welding device for a steel bar truss, which includes a controller, and two welding workstations connected to the controller, a first longitudinal conveying line, a second longitudinal conveying line, and a lateral transfer mechanism. The present invention is provided with a welding workstation, a loading machine is used to load the steel bar head, a material taking robot is used to take the material and place the steel bar head at the end of the steel bar truss, and then a welding robot is used to perform welding work, thereby realizing automatic welding of the steel bar head and improving its production efficiency. Moreover, the present invention is provided with two longitudinal conveying lines and two welding workstations respectively coordinated with the two longitudinal conveying lines, the first longitudinal conveying line cooperates with one of the welding workstations to perform the head welding work of the steel bar truss, and the second longitudinal conveying line cooperates with the other welding workstation to perform the tail welding work of the steel bar truss, so that the two workstations can work at the same time, further improving the welding efficiency of the steel bar head.

Description

Technical Field

[0001] The invention relates to the field of steel bar truss floor deck production equipment, and in particular to a steel bar head welding device for a steel bar truss. Background Art

[0002] Steel truss floor deck is a composite formwork that processes the steel bars in the floor slab into steel trusses in the factory and connects the steel trusses with the bottom formwork. Steel truss floor deck can significantly reduce the amount of steel bar binding work on site, speed up the construction progress, and increase construction safety assurance. In addition, steel truss floor deck is conducive to uniform spacing of steel bars and consistent thickness of concrete cover, thereby improving the construction quality of the floor slab. It is widely used in the construction industry.

[0003] At present, steel trusses are generally produced by truss welding machines. Steel trusses can be produced by feeding steel bars into the truss welding machine. In order to ensure the structural stability of the steel trusses, steel bar heads are generally welded at both ends of the steel trusses. The welding of the steel bar heads cannot be completed in the truss welding machine, and is generally welded by manual welding. One way is to manually weld the steel bar heads after the truss machine produces the steel trusses, and then weld the welded steel trusses to the bottom formwork to complete the preparation of the steel truss floor deck; another way is to weld the steel bar heads to the steel truss by manual welding after the steel truss is welded to the low formwork. Due to the use of manual welding, neither of the two methods can improve the production efficiency of the steel truss floor deck, resulting in low production efficiency of the steel truss floor deck and the inability to achieve fully automated production.

[0004] In view of this, the designer has made in-depth considerations and actively researched, improved and tried to develop the present invention in order to solve the many deficiencies and inconveniences caused by the imperfections in the above-mentioned design. Summary of the invention

[0005] The object of the present invention is to provide a steel bar head welding device for a steel bar truss plate capable of automatic welding, so as to effectively improve the welding efficiency of the steel bar head.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A steel bar head welding device for a steel bar truss comprises a controller, and two welding workstations connected to the controller, a first longitudinal conveying line, a second longitudinal conveying line and a transverse transfer mechanism;

[0008] The first longitudinal conveying line and the second longitudinal conveying line are parallel to each other, and the transverse mechanism is used to transfer the steel bar truss from the first longitudinal conveying line to the second longitudinal conveying line; the two welding workstations are respectively arranged at the ends of the first longitudinal conveying line and the second longitudinal conveying line, and the two welding workstations are located on different sides;

[0009] The welding workstation includes a truss positioning machine, a material loader, a material taking robot, and a welding robot connected to a controller; the material loader and the material taking robot are located on one side of the truss positioning machine, and the welding robot is located on the other side of the truss positioning machine.

[0010] The first longitudinal conveying line and the second longitudinal conveying line are arranged side by side.

[0011] At least one cache conveyor line is provided between the first longitudinal conveyor line and the second longitudinal conveyor line, and the transverse transfer mechanism cooperates with the first longitudinal conveyor line, the cache conveyor line and the second longitudinal conveyor line to transfer the steel truss from the first longitudinal conveyor line to the cache conveyor line, and then to the second longitudinal conveyor line from the cache conveyor line.

[0012] The lateral transfer mechanism is a material clamping and moving machine.

[0013] The transverse transfer mechanism includes more than two groups of transverse conveyor lines, each group of transverse conveyor lines crosses the first longitudinal conveyor line and the second longitudinal conveyor line; each group of transverse conveyor lines is connected to a lifting mechanism, and the lifting mechanism is used to control the rise and fall of the transverse conveyor line; under normal conditions, the upper end surface of the transverse conveyor line is lower than the upper end surface of the first longitudinal conveyor line and the second longitudinal conveyor line, and when the transverse conveyor line conveys the steel bar truss, its upper end surface is higher than the first longitudinal conveyor line and the second longitudinal conveyor line.

[0014] The truss positioning machine includes a positioning frame, and a detection switch, a limit device and a fixing device arranged on the positioning frame. A positioning space for the steel bar truss to pass through is formed on the positioning frame; the limit device is arranged on a side of the positioning frame away from the first longitudinal conveying line and the second longitudinal conveying line, and the limit device includes a limit driving member and a baffle. The limit driving member is fixed on the positioning frame, and the baffle is connected to the limit driving member and selectively blocks the positioning space; the fixing device includes at least one fixed module, and the fixed module includes a fixed driving member and a fixing member. The fixed driving member is fixed on the positioning frame, and the fixing member is connected to the fixed driving member and selectively cooperates with the steel bar truss; the limit driving member and the fixed driving member are both connected to the controller.

[0015] The fixing device comprises two groups of fixing modules, namely an upper fixing module and a lower fixing module. The upper fixing module is arranged above the positioning space, and the lower fixing module is arranged below the positioning space. The fixing parts of the upper fixing module and the lower fixing module cooperate with each other.

[0016] The fixing piece of the upper fixing module is provided with a slot, and the fixing piece of the lower fixing module is provided with a pushing portion matched with the slot.

[0017] At least one set of alignment devices is respectively disposed on both sides of the first longitudinal conveying line and the second longitudinal conveying line, and the alignment devices are close to the truss positioning machine.

[0018] The positioning device includes a positioning block and a positioning drive. The positioning drive is arranged on the first longitudinal conveying line and the second longitudinal conveying line and is connected to the controller. The positioning block is connected to the positioning drive. Under the action of the positioning drive, the positioning block moves in a direction perpendicular to the conveying direction of the steel truss.

[0019] After adopting the above scheme, the present invention sets up a welding workstation, uses a loading machine to load the steel bar head, uses a material taking robot to take the material and place the steel bar head at the end of the steel bar truss, and then uses a welding robot to perform welding work, thereby realizing automatic welding of the steel bar head and improving its production efficiency. In addition, the present invention sets up two longitudinal conveying lines and two welding workstations respectively cooperating with the two longitudinal conveying lines. The first longitudinal conveying line cooperates with one of the welding workstations to perform the head welding work of the steel bar truss, and the second longitudinal conveying line cooperates with another welding workstation to perform the tail welding work of the steel bar truss, so that the two workstations can work at the same time, further improving the welding efficiency of the steel bar head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a steel bar head welding device of the present invention;

[0021] Figure 2 This is a structural diagram of the tail welding workstation;

[0022] Figure 3 This is a schematic diagram of the structure of the head welding workstation;

[0023] Figure 4-5 It is a structural schematic diagram of the welding workstation at different angles;

[0024] Figure 6 and Figure 7 It is a structural schematic diagram of two implementation methods of the fixing device;

[0025] Figure 8 This is the application diagram of the steel bar head welding device in the entire production line.

[0026] Description of labels:

[0027] A first welding workstation 101; a second welding workstation 102;

[0028] Truss positioning machine 110; positioning frame 111; limiting device 112; limiting driving member 1121; baffle 1122; fixing device 113; upper fixing module 1131; lower fixing module 1132; fixing driving members 11311, 11321; fixing members 11312, 11322;

[0029] Retrieving robot 120;

[0030] Welding robot 130;

[0031] Loading machine 140;

[0032] A first longitudinal conveying line 200;

[0033] A second longitudinal conveying line 300;

[0034] Horizontal transfer mechanism 400;

[0035] Cache conveyor line 500;

[0036] Position calibration device 600; Position calibration drive member 610; Position calibration block 620. DETAILED DESCRIPTION

[0037] like Figure 1-8 As shown, the present invention discloses a steel bar head welding device for a steel bar truss, which includes a controller, two welding workstations connected to the controller, a first longitudinal conveying line 200, a second longitudinal conveying line 300 and a transverse transfer mechanism 400. The first longitudinal conveying line 200 and the second longitudinal conveying line 300 are parallel to each other, and the transverse mechanism is used to transfer the steel bar truss from the first longitudinal conveying line 200 to the second longitudinal conveying line 300; the two welding workstations are respectively arranged at the ends of the first longitudinal conveying line 200 and the second longitudinal conveying line 300, and the two welding workstations are on different sides. The welding workstation includes a truss positioning machine 110, a loading machine 140, a material taking robot 120, and a welding robot 130 connected to the controller; the loading machine 140 and the material taking robot 120 are located on one side of the truss positioning machine 110, and the welding robot 130 is located on the other side of the truss positioning machine 110.

[0038] In this embodiment, the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300 are arranged side by side. Here, the side by side arrangement includes that the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300 are aligned at both ends, or the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300 are staggered with each other, but it is necessary to ensure that the staggered length of the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300 is not too long. If they are arranged side by side, the length of the production line of the entire device can be reduced, thereby improving the space utilization.

[0039] The present invention sets a welding workstation, uses a loading machine 140 to load the steel bar head, uses a material taking robot 120 to take the material and place the steel bar head at the end of the steel bar truss, and then uses a welding robot 130 to perform welding work, thereby realizing automatic welding of the steel bar head and improving its production efficiency. In addition, the present invention sets two longitudinal conveying lines and two welding workstations respectively cooperating with the two longitudinal conveying lines. The first longitudinal conveying line 200 cooperates with one of the welding workstations to perform the head welding work of the steel bar truss, and the second longitudinal conveying line 300 cooperates with another welding workstation to perform the tail welding work of the steel bar truss, so that the two workstations can work at the same time, further improving the welding efficiency of the steel bar head.

[0040] In this embodiment, the welding workstation cooperating with the first longitudinal conveyor line 200 is used as the first welding workstation 101 to perform tail welding of the steel truss, and the welding workstation cooperating with the second longitudinal conveyor line 300 is used as the second welding workstation 102 to perform head welding of the steel truss.

[0041] Furthermore, at least one buffer conveyor line 500 is provided between the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300, and the lateral transfer mechanism 400 cooperates with the first longitudinal conveyor line 200, the buffer conveyor line 500 and the second longitudinal conveyor line 300 to transfer the steel bar truss from the first longitudinal conveyor line 200 to the buffer conveyor line 500, and from the buffer conveyor line 500 to the second longitudinal conveyor line 300. In this way, when the first longitudinal conveyor line 200 or the first welding workstation has a problem and stops working, the second longitudinal conveyor line 300 and the second steel bar welding workstation can still perform the head welding work. Therefore, as long as the staff repairs the first longitudinal conveyor line 200 and the first welding workstation 101 as soon as possible, it will not affect the operation of other subsequent mechanisms, thereby ensuring the normal and high-speed production of the steel bar truss.

[0042] The above-mentioned lateral transfer mechanism 400 is mainly used to move the steel bar truss, and it can use a material clamping and material moving robot to move the material. It can also be moved by a transmission line. In this embodiment, the lateral transfer mechanism 400 uses a transmission line to transmit the steel bar truss on the first longitudinal conveyor line 200, the buffer conveyor line 500 and the second longitudinal conveyor line 300. The lateral material moving mechanism of this embodiment includes more than two groups of lateral conveyor lines, each group of lateral conveyor lines crosses the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300; each group of lateral conveyor lines is connected to a lifting mechanism, and the lifting mechanism is used to control the rise and fall of the lateral conveyor line; under normal conditions, the upper end surface of the lateral conveyor line is lower than the upper end surface of the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300. When the lateral conveyor line transports the steel bar truss, its upper end surface is higher than the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300. Specifically, the lateral conveyor line can be set on a workbench, and then the workbench can be lifted and lowered by a cylinder, an oil cylinder, etc. At this time, the cylinder and the oil cylinder serve as a lifting mechanism.

[0043] like Figure 4-7 As shown, the welding workstation can perform welding work because the truss positioning machine 110 effectively positions the steel bar head. The truss positioning machine 110 includes a positioning frame 111, and a detection switch, a limit device 112 and a fixing device 113 arranged on the positioning frame 111. The positioning frame 111 is formed with a positioning space for the steel bar truss to pass through; the limit device is arranged on the side of the positioning frame away from the first longitudinal conveying line and the second longitudinal conveying line, and the limit device 112 includes a limit driving member 1121 and a baffle 1122. The limit driving member 1121 is fixed on the positioning frame 111, and the baffle 1122 is connected to the limit driving member 1121, and Selectively block the positioning space; the fixing device 113 includes at least one fixed module, the fixed module includes fixed driving parts 11311, 11321 and fixing parts 11312, 11322, the fixed driving parts 11311, 11321 are fixed on the positioning frame 111, the fixing parts 11312, 11322 are connected to the fixed driving parts 11311, 11321, and selectively cooperate with the steel truss; the limiting driving part 1121 and the fixed driving parts 11311, 11321 are all connected to the controller.

[0044] After the steel bar truss enters the first longitudinal conveyor line 200, the first longitudinal conveyor line 200 conveys the steel bar truss net to the first welding workstation direction. When the detection switch detects the tail of the steel bar truss, the controller controls the limit drive 1121 of the limit device 112, thereby driving the baffle 1122 to block the positioning space. When the front end of the steel bar truss hits the baffle 1122, the first longitudinal conveyor line 200 stops conveying, thereby realizing the positioning of the tail of the steel bar truss. Then, the front end of the steel bar truss is fixed by the fixing device 113, and the material picking robot 120 and the welding robot 130 can be controlled to weld the steel bar head and the tail of the steel bar truss.

[0045] After the tail welding of the steel bar truss is completed, the lateral transfer mechanism 400 transfers the steel bar truss from the first longitudinal conveyor line 200 to the second longitudinal conveyor line 300. The second longitudinal conveyor line 300 conveys the steel bar truss to the second welding workstation. When the detection switch detects the head of the steel bar truss, the controller controls the limit drive 1121 of the limit device 112, thereby driving the baffle 1122 to block the positioning space. When the head of the steel bar truss hits the baffle 1122, the second longitudinal conveyor line 300 stops conveying, thereby realizing the positioning of the head of the steel bar truss. Then, the front end of the steel bar truss is fixed by the fixing device 113, and the material picking robot 120 and the welding robot 130 can be controlled to perform the welding work between the steel bar head and the tail of the steel bar truss.

[0046] In this embodiment, the fixing device 113 includes two groups of fixing modules, namely an upper fixing module 1131 and a lower fixing module 1132. The upper fixing module 1131 is arranged above the positioning space, and the lower fixing module 1132 is arranged below the positioning space. The fixing members 11312 and 11322 of the upper fixing module 1131 and the lower fixing module 1132 cooperate with each other. The fixing member 11312 of the upper fixing module 1131 is provided with a slot, which is an inverted V-shaped or trapezoidal; the fixing member 11322 of the lower fixing module 1132 is provided with a push portion that cooperates with the slot, and the cross section of the push portion is a triangle or a trapezoid. Through the cooperation of the fixing members 11312 and 11322 of the upper fixing module 1131 and the lower fixing module 1132, the steel bar truss can be well fixed.

[0047] During the transmission of the steel bar truss on the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300, the position may be offset, which may cause the steel bar truss to be unable to enter the truss positioning machine 110. Therefore, at least one set of alignment devices 600 are respectively provided on both sides of the first longitudinal conveyor line 200 and the second longitudinal conveyor line 300, and the alignment device 600 is close to the truss positioning machine 110. The alignment device 600 includes an alignment block 620 and an alignment drive 610, the alignment drive 610 is arranged on the conveyor line and connected to the controller, the alignment block 620 is connected to the alignment drive 610, and under the action of the alignment drive 610, the alignment block 620 moves in a direction perpendicular to the conveying direction of the conveyor line, thereby making the steel bar truss correspond to the truss positioning machine 110, so that the steel bar truss can smoothly enter the truss positioning machine 110.

[0048] In summary, the key to the present invention is that the present invention sets a welding workstation, uses a loader 140 to load the steel bar head, uses a material-picking robot 120 to pick up the material and place the steel bar head at the end of the steel bar truss, and then uses a welding robot 130 to perform welding work, thereby realizing automatic welding of the steel bar head and improving its production efficiency. In addition, the present invention sets two longitudinal conveyor lines and two welding workstations that cooperate with the two longitudinal conveyor lines respectively. The first longitudinal conveyor line 200 cooperates with one of the welding workstations to perform the head welding work of the steel bar truss, and the second longitudinal conveyor line 300 cooperates with another welding workstation to perform the tail welding work of the steel bar truss, so that the two workstations can work at the same time, further improving the welding efficiency of the steel bar head.

[0049] The above description is merely an embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A steel bar head welding device for a steel bar truss, characterized in that: It includes a controller, and two welding workstations connected to the controller, a first longitudinal conveying line, a second longitudinal conveying line and a transverse transfer mechanism; The first longitudinal conveying line and the second longitudinal conveying line are parallel to each other, and the transverse transfer mechanism is used to transfer the steel bar truss from the first longitudinal conveying line to the second longitudinal conveying line; the two welding workstations are respectively arranged at the ends of the first longitudinal conveying line and the second longitudinal conveying line, and the two welding workstations are located on different sides; The welding workstation includes a truss positioning machine, a material loader, a material taking robot, and a welding robot connected to the controller; the material loader and the material taking robot are located on one side of the truss positioning machine, and the welding robot is located on the other side of the truss positioning machine; The first longitudinal conveying line and the second longitudinal conveying line are arranged side by side; At least one buffer conveyor line is provided between the first longitudinal conveyor line and the second longitudinal conveyor line, and the transverse transfer mechanism cooperates with the first longitudinal conveyor line, the buffer conveyor line and the second longitudinal conveyor line to transfer the steel bar truss from the first longitudinal conveyor line to the buffer conveyor line, and from the buffer conveyor line to the second longitudinal conveyor line; The truss positioning machine includes a positioning frame, and a detection switch, a limit device and a fixing device arranged on the positioning frame. A positioning space for the steel bar truss to pass through is formed on the positioning frame; the limit device is arranged on a side of the positioning frame away from the first longitudinal conveying line and the second longitudinal conveying line, and the limit device includes a limit driving member and a baffle. The limit driving member is fixed on the positioning frame, and the baffle is connected to the limit driving member and selectively blocks the positioning space; the fixing device includes at least one fixed module, and the fixed module includes a fixed driving member and a fixing member. The fixed driving member is fixed on the positioning frame, and the fixing member is connected to the fixed driving member and selectively cooperates with the steel bar truss; the limit driving member and the fixed driving member are both connected to the controller.

2. The steel bar head welding device for a steel bar truss according to claim 1, characterized in that: The lateral transfer mechanism is a material clamping and moving machine.

3. The steel bar head welding device for a steel bar truss according to claim 1, characterized in that: The transverse transfer mechanism includes more than two groups of transverse conveyor lines, each group of transverse conveyor lines crosses the first longitudinal conveyor line and the second longitudinal conveyor line; each group of transverse conveyor lines is connected to a lifting mechanism, and the lifting mechanism is used to control the rise and fall of the transverse conveyor line; under normal conditions, the upper end surface of the transverse conveyor line is lower than the upper end surface of the first longitudinal conveyor line and the second longitudinal conveyor line, and when the transverse conveyor line conveys the steel bar truss, its upper end surface is higher than the first longitudinal conveyor line and the second longitudinal conveyor line.

4. The steel bar head welding device for a steel bar truss according to claim 3 is characterized in that: The fixing device comprises two groups of fixing modules, namely an upper fixing module and a lower fixing module. The upper fixing module is arranged above the positioning space, and the lower fixing module is arranged below the positioning space. The fixing parts of the upper fixing module and the lower fixing module cooperate with each other.

5. The steel bar head welding device for a steel bar truss according to claim 4, characterized in that: The fixing piece of the upper fixing module is provided with a slot, and the fixing piece of the lower fixing module is provided with a pushing portion matched with the slot.

6. The steel bar head welding device for a steel bar truss according to claim 1, characterized in that: At least one set of alignment devices is respectively disposed on both sides of the first longitudinal conveying line and the second longitudinal conveying line, and the alignment devices are close to the truss positioning machine.

7. The steel bar head welding device for a steel bar truss according to claim 6, characterized in that: The positioning device includes a positioning block and a positioning drive. The positioning drive is arranged on the first longitudinal conveying line and the second longitudinal conveying line and is connected to the controller. The positioning block is connected to the positioning drive. Under the action of the positioning drive, the positioning block moves in a direction perpendicular to the conveying direction of the steel truss.

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