Steel bar welding device for highway bridge guardrail

Abstract

The invention discloses a reinforcing steel bar welding device for an expressway bridge guardrail, and belongs to the field of welding devices. Comprising a welding mechanism, clamping mechanisms are arranged on the two sides of the welding mechanism, each clamping mechanism comprises a mounting base, the opposite sides of the two mounting bases which are opposite left and right are rotationally connected with discs through rotating shafts, the outer side walls of the discs are fixedly connected with a plurality of supporting rods, and the interiors of the supporting rods are rotationally connected with shaft rods through rotating shafts; the two ends of the shaft rod are fixedly connected with a first gear and a second gear correspondingly, and the outer side wall, located on the outer side of the shaft rod, of the supporting rod is fixedly connected with a connecting frame. The welding mechanism is used for achieving butt welding work of the reinforcing steel bars, the positions of the multiple welding guns can be adjusted through an arc opening and a cylindrical rod, then the reinforcing steel bars with different diameters can be welded conveniently, the moved cylindrical rod can be locked through an abutting piece and a threaded block, and then the welding guns are positioned.

Description

Technical Field

[0001] The invention relates to the field of welding devices, and in particular to a steel bar welding device for highway bridge guardrails. Background Art

[0002] Expressways are roads where vehicles travel at very high speeds. Expressways are only for cars to travel at high speeds. They have multiple lanes and a central divider to completely separate the traffic going in and out. They also have three-dimensional intersections, which are closed all the way and have entrance and exit controls. Cars are only allowed to enter and exit the road at certain designated three-dimensional intersections. There are also bridges on the sections of expressways, which are all equipped with guardrails. In the production process of guardrails, steel bar welding devices are often required.

[0003] Patent publication number (CN109909635A) relates to a steel bar positioning welding device, a support frame is arranged at the center of the upper part of the device body, a hydraulic cylinder is fixedly arranged inside the support frame, a welding gun is arranged between the hydraulic cylinders, the welding gun is connected to the top of the support frame through a slide, a pressure head is arranged at the lower end of the hydraulic cylinder, a support plate is arranged on the device body below the hydraulic cylinder, a roller A is also arranged on the upper surface of the device body, a support leg is arranged at the lower part of the device body, a fixed rod is arranged between the support legs, a servo motor is fixedly arranged on the fixed rod, a screw rod is connected to the power end of the servo motor, the upper end of the screw rod is rotatably connected to the fixed column, the upper part of the fixed column is fixedly connected to the device body, a fixing ring is also arranged on the fixed column, a movable ring is arranged on the screw rod, an upper connecting piece is arranged on the fixed ring, a lower connecting piece is arranged on the movable ring, the upper connecting piece and the lower connecting piece are connected to the telescopic frame, and a fixing buckle is arranged at the hinge of the telescopic frame; the invention has the advantages of good positioning effect, convenient welding and simple operation;

[0004] In the above technology, it is not convenient to butt and weld multiple groups of steel bars at the same time, and it is not convenient to control the rotation of the steel bars, so it is impossible to ensure that the butt welding is more comprehensive. Improvements are needed. For this reason, we propose a steel bar welding device for highway bridge guardrails. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a device that can simultaneously butt and weld multiple groups of steel bars; another purpose of the present invention is to provide a device that can simultaneously rotate multiple steel bars to make steel bar welding more comprehensive.

[0006] Technical solution: A steel bar welding device for highway bridge guardrails includes a welding mechanism, and clamping mechanisms are arranged on both sides of the welding mechanism;

[0007] The clamping mechanism includes a mounting seat, and opposite sides of two mounting seats opposite to each other on the left and right are rotatably connected with a disk via a rotating shaft, the outer side wall of the disk is fixedly connected with a plurality of support rods, the interior of the support rod is rotatably connected with an axle rod via a rotating shaft, and the two ends of the axle rod are respectively fixedly connected with a gear 1 and a gear 2, the outer side wall of the support rod is located on the outer side of the axle rod and is fixedly connected with a connecting frame, the end of the connecting frame away from the disk is fixedly connected with a ring, the inner side of the ring is rotatably connected with a clamping cylinder via a rotating shaft, the outer side wall of the clamping cylinder is fixedly connected with a gear 3, the gear 3 is meshingly connected with the gear 1, and the opposite sides of the two mounting seats opposite to each other on the left and right and located on the outer side of the plurality of gears 2 are fixedly connected with a gear ring, and the gear ring is meshingly connected with the gear 2;

[0008] A motor is fixedly connected to the right side of the mounting seat located on the left side of the welding mechanism, the right end of the output shaft of the motor is fixedly connected to the left center of the disc located on the left side of the welding mechanism, and a linkage rod is fixedly connected between the two left and right opposite discs.

[0009] Furthermore, the welding mechanism includes a welding seat, a through-type arc opening is opened on the right side of the welding seat, a plurality of cylindrical rods are arranged inside the arc opening, the right end of the cylindrical rod is fixedly connected to a snap-fit ​​seat, a welding gun is snapped inside the snap-fit ​​seat, and the outer wall of the cylindrical rod is located on the left side of the welding seat and is threadedly connected to a threaded block.

[0010] Furthermore, an outer side wall of the cylindrical rod is fixedly connected with an abutment sheet on the right side of the welding seat.

[0011] Furthermore, the bottom of the welding seat is fixedly connected to a bottom plate, both sides of the bottom plate are fixedly connected to support frames, and the top of the support frame is fixedly connected to the bottom of the mounting seat.

[0012] Furthermore, the threaded connection of the mounting seat located on the right side of the welding mechanism is provided with a threaded bolt, the right end of the threaded bolt passes through the mounting seat, and a positioning hole is provided on the right side of the disc located on the right side of the welding mechanism.

[0013] Furthermore, an arc-shaped groove is opened on the right side of the disc located on the right side of the welding mechanism, an L-shaped rod is slidably connected inside the arc-shaped groove, a spring is fixedly connected between the L-shaped rod and the arc-shaped groove, and the bottom end of the L-shaped rod is fixedly connected to the outer wall of the linkage rod.

[0014] Furthermore, the outer wall of the clamping tube is threadedly connected with a positioning bolt, one end of the positioning bolt away from the clamping tube is fixedly connected with a knob, and the end of the positioning bolt away from the knob penetrates into the interior of the clamping tube.

[0015] Furthermore, the end of the clamping tube away from the welding mechanism is fixedly connected with a push ring, the side of the push ring away from the welding mechanism is provided with a clamping plate, the side of the clamping plate close to the welding mechanism is fixedly connected with a plurality of cross bars, and the end of the cross bar away from the clamping plate passes through the push ring and is slidably connected to the push ring.

[0016] Furthermore, a second spring is fixedly connected to the opposite sides of the retaining ring and the clamping plate and located on the outer side of the cross bar.

[0017] Beneficial effects:

[0018] The welding mechanism is used to realize the butt welding of steel bars. Through the arc opening and cylindrical rod, multiple welding guns can adjust their positions, which is convenient for welding steel bars with different diameters. Through the abutment sheet and threaded block, the cylindrical rod can be locked after moving, and then the welding gun can be positioned.

[0019] Multiple welding guns at different positions weld at different positions to avoid the problem of missed welding. Through the control of an external intelligent controller, multiple welding guns can be controlled to weld a group of steel bars. When waiting for the next group of steel bars to arrive at the welding position, they can stop cooling for a short time to avoid overheating of the long-term working device.

[0020] The two steel bars that need to be butt-welded are placed inside the left and right opposite clamping cylinders respectively. By setting up multiple clamping cylinders, multiple groups of steel bars can be placed at the same time for butt welding. When the motor is started, the two discs can be driven to rotate together under the linkage of the linkage rod, thereby driving multiple steel bars to move along the inner circumference of the gear ring. At the same time, through the meshing of gear three with gear one and gear two with the gear ring, multiple steel bars can be driven to rotate together with the clamping cylinder, so that when the welding mechanism is welding, multiple groups of steel bars to be welded can be welded at the same time, and the steel bars can rotate by themselves, making the welding more comprehensive.

[0021] Before inserting the steel bar into the multiple groups of clamping cylinders opposite to each other on the left and right, the disc on one side can be rotated, and then the threaded bolt can be inserted into the positioning hole, so that the clamping cylinders opposite to each other on the left and right are staggered, which makes it easier to insert the steel bar into the clamping cylinder. After the insertion is completed, the threaded bolt is rotated to disengage from the positioning hole, and the disc is reset under the pull of the spring, so that the opposite ends of the steel bar can be butted together.

[0022] After the opposite ends of the steel bars are butted together, the two clamping plates on the left and right will press against the steel bars under the pull of spring 2, making the steel bars tighter after butt connection. At the same time, the hand-held knob can be rotated to further position the steel bars, making the steel bars more stable after clamping and not easily moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a front view structural schematic diagram of the present invention;

[0024] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0026] Figure 4 is a side structural schematic diagram of the clamping mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure of the support rod, the connecting frame and the clamping tube of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the welding mechanism of the present invention;

[0029] Figure 7 It is a rear structural schematic diagram of the welding mechanism of the present invention.

[0030] In the figure: 1. welding mechanism; 2. clamping mechanism; 3. motor; 4. linkage rod; 5. bottom plate; 6. support frame; 7. threaded bolt; 8. positioning hole; 9. arc groove; 10. L-shaped rod; 11. spring one; 101. welding seat; 102. arc mouth; 103. cylindrical rod; 104. snap seat; 105. welding gun; 106. threaded block; 107. abutment sheet; 201. mounting seat; 202. disc; 203. support rod; 204. shaft rod; 205. gear one; 206. gear two; 207. connecting frame; 208. ring; 209. spring two; 210. clamping cylinder; 211. gear three; 212. gear ring; 213. positioning bolt; 214. knob; 215. abutment ring; 216. clamping disc; 217. cross bar. DETAILED DESCRIPTION

[0031] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figure 6 and Figure 7 As shown, a steel bar welding device for highway bridge guardrail is provided, including a welding mechanism 1, the welding mechanism 1 includes a welding seat 101, a through-type arc opening 102 is opened on the right side of the welding seat 101, a plurality of cylindrical rods 103 are arranged inside the arc opening 102, a clamping seat 104 is fixedly connected to the right end of the cylindrical rod 103, a welding gun 105 is clamped inside the clamping seat 104, the outer wall of the cylindrical rod 103 is located on the left side of the welding seat 101 and is threadedly connected to a thread block 106, and the outer wall of the cylindrical rod 103 is located on the right side of the welding seat 101 and is fixedly connected to an abutment sheet 107;

[0034] The welding mechanism 1 is used to realize the butt welding of steel bars. Through the arc opening 102 and the cylindrical rod 103, multiple welding guns 105 can be adjusted in position, which is convenient for welding steel bars of different diameters. Through the abutment piece 107 and the threaded block 106, the moved cylindrical rod 103 can be locked, and then the welding gun 105 can be positioned.

[0035] like Figure 3 , Figure 4 and Figure 5 As shown, a clamping mechanism 2 is provided on both sides of the welding mechanism 1, and the clamping mechanism 2 includes a mounting seat 201, and the opposite sides of the two mounting seats 201 opposite to each other are both connected to a disk 202 by a rotating shaft, and the outer wall of the disk 202 is fixedly connected to a plurality of support rods 203, and the interior of the support rod 203 is connected to a shaft 204 by a rotating shaft, and the two ends of the shaft 204 are respectively fixedly connected to a gear 1 205 and a gear 2 206, and the outer wall of the support rod 203 is located on the outer side of the shaft 204 and is fixedly connected to a connecting frame 207, and the end of the connecting frame 207 away from the disk 202 is fixedly connected to a ring 208, and the ring 208 is fixedly connected to the outer wall of the support rod 203. A clamping cylinder 210 is rotatably connected to the inner side through a rotating shaft, and a gear three 211 is fixedly connected to the outer wall of the clamping cylinder 210, and the gear three 211 is meshed with the gear one 205. A gear ring 212 is fixedly connected to the opposite sides of the two opposite mounting seats 201 on the left and right, and is located on the outer sides of the plurality of gears two 206, and is meshed with the gear two 206. A motor 3 is fixedly connected to the right side of the mounting seat 201 located on the left side of the welding mechanism 1, and the right end of the output shaft of the motor 3 is fixedly connected to the left center of the disc 202 located on the left side of the welding mechanism 1, and a linkage rod 4 is fixedly connected between the two opposite discs 202 on the left and right;

[0036] The two steel bars that need to be butt-welded are placed inside the clamping cylinders 210 that are opposite to each other on the left and right. By setting up multiple clamping cylinders 210, multiple groups of steel bars can be placed at the same time for butt welding. When the motor 3 is started, under the linkage of the linkage rod 4, the two discs 202 can be driven to rotate together, thereby driving multiple steel bars to move along the inner circumference of the gear ring 212. At the same time, through the meshing of the gear three 211 with the gear one 205, and the meshing of the gear two 206 with the gear ring 212, the multiple steel bars can be driven to rotate together with the clamping cylinder 210, so that when the welding mechanism 1 is welding, multiple groups of steel bars to be welded can be welded at the same time, and the steel bars can rotate by themselves, making the welding more comprehensive, and multiple welding guns 105 at different positions weld at different positions to avoid the problem of leaking welding, and multiple welding guns 105 can be controlled by an external intelligent controller to weld a group of steel bars and wait for the next group of steel bars to arrive at the welding position. When cooling, it can be stopped for a short time to avoid the problem of overheating of the long-term working device;

[0037] The threaded connection of the mounting seat 201 located on the right side of the welding mechanism 1 is provided with a threaded bolt 7, the right end of the threaded bolt 7 passes through the mounting seat 201, a positioning hole 8 is provided on the right side of the disc 202 located on the right side of the welding mechanism 1, an arc-shaped groove 9 is provided on the right side of the disc 202 located on the right side of the welding mechanism 1, an L-shaped rod 10 is slidably connected inside the arc-shaped groove 9, a spring 11 is fixedly connected between the L-shaped rod 10 and the arc-shaped groove 9, and the bottom end of the L-shaped rod 10 is fixedly connected to the outer side wall of the linkage rod 4;

[0038] Before inserting the steel bar into the multiple groups of clamping cylinders 210 opposite to each other on the left and right, the disc 202 on one side can be rotated, and then the threaded bolt 7 can be inserted into the positioning hole 8, so that the clamping cylinders 210 opposite to each other on the left and right are staggered, which makes it easier to insert the steel bar into the clamping cylinder 210. After the insertion is completed, the threaded bolt 7 is rotated to disengage from the positioning hole 8, and the disc 202 is reset under the pull of the spring 11, so that the opposite ends of the steel bar can be butted together.

[0039] The outer wall of the clamping cylinder 210 is threadedly connected with a positioning bolt 213, and the end of the positioning bolt 213 away from the clamping cylinder 210 is fixedly connected with a knob 214. The end of the positioning bolt 213 away from the knob 214 penetrates into the interior of the clamping cylinder 210, and the end of the clamping cylinder 210 away from the welding mechanism 1 is fixedly connected with a ring 215, and a clamping disk 216 is provided on the side of the ring 215 away from the welding mechanism 1. A plurality of cross bars 217 are fixedly connected to the side of the clamping disk 216 close to the welding mechanism 1, and the end of the cross bar 217 away from the clamping disk 216 penetrates the ring 215 and is slidably connected to the ring 215. The opposite sides of the ring 215 and the clamping disk 216 and the outer side of the cross bar 217 are fixedly connected with a spring 209.

[0040] After the opposite ends of the steel bars are butted, under the pull of the spring 209, the two clamping plates 216 opposite to each other will press against the steel bars, making the steel bars more tightly butted. At the same time, the hand-held knob 214 can be rotated to further position the steel bars, making the steel bars more stable after clamping and not easily moving.

[0041] like Figure 1 and Figure 2 As shown, the bottom of the welding seat 101 is fixedly connected to the bottom plate 5, and both sides of the bottom plate 5 are fixedly connected to the support frame 6, and the top of the support frame 6 is fixedly connected to the bottom of the mounting seat 201;

[0042] It plays a supporting role.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A steel bar welding device for highway bridge guardrails, comprising a welding mechanism (1), characterized in that: Clamping mechanisms (2) are provided on both sides of the welding mechanism (1); The clamping mechanism (2) comprises a mounting seat (201), and the opposite sides of the two mounting seats (201) opposite to each other are both rotatably connected to a disk (202) via a rotating shaft, the outer wall of the disk (202) is fixedly connected to a plurality of support rods (203), the interior of the support rod (203) is rotatably connected to an axle rod (204) via a rotating shaft, the two ends of the axle rod (204) are respectively fixedly connected to a gear 1 (205) and a gear 2 (206), the outer wall of the support rod (203) is located outside the axle rod (204) and is fixedly connected to a connecting frame (207), and the connecting frame (207) is fixedly connected to the outer wall of the support rod (203). A ring (208) is fixedly connected to one end of the receiving frame (207) away from the disc (202), and a clamping cylinder (210) is rotatably connected to the inner side of the ring (208) via a rotating shaft, and a gear three (211) is fixedly connected to the outer wall of the clamping cylinder (210), and the gear three (211) is meshingly connected to the gear one (205). A gear ring (212) is fixedly connected to the opposite sides of the two left and right opposite mounting seats (201) and located on the outer sides of the plurality of gear twos (206), and the gear ring (212) is meshingly connected to the gear two (206); A motor (3) is fixedly connected to the right of the mounting seat (201) located on the left side of the welding mechanism (1); the right end of the output shaft of the motor (3) is fixedly connected to the left center of the disc (202) located on the left side of the welding mechanism (1); and a linkage rod (4) is fixedly connected between the two discs (202) that are opposite to each other on the left and right.

2. A steel bar welding device for highway bridge guardrail according to claim 1, characterized in that: The welding mechanism (1) comprises a welding seat (101), a through-type arc opening (102) is provided on the right side of the welding seat (101), a plurality of cylindrical rods (103) are arranged inside the arc opening (102), a clamping seat (104) is fixedly connected to the right end of the cylindrical rod (103), a welding gun (105) is clamped inside the clamping seat (104), and an outer wall of the cylindrical rod (103) is threadedly connected to a threaded block (106) on the left side of the welding seat (101).

3. A steel bar welding device for highway bridge guardrail according to claim 2, characterized in that: The outer side wall of the cylindrical rod (103) is located on the right side of the welding seat (101) and is fixedly connected with a contact piece (107).

4. A steel bar welding device for highway bridge guardrail according to claim 2, characterized in that: The bottom of the welding seat (101) is fixedly connected to a bottom plate (5), both sides of the bottom plate (5) are fixedly connected to support frames (6), and the top of the support frame (6) is fixedly connected to the bottom of the mounting seat (201).

5. A steel bar welding device for highway bridge guardrail according to claim 1, characterized in that: The mounting seat (201) located on the right side of the welding mechanism (1) is threadedly connected with a threaded bolt (7), the right end of the threaded bolt (7) passes through the mounting seat (201), and a positioning hole (8) is opened on the right side of the disc (202) located on the right side of the welding mechanism (1).

6. A steel bar welding device for highway bridge guardrail according to claim 1, characterized in that: An arc-shaped groove (9) is provided on the right side of the circular disc (202) located on the right side of the welding mechanism (1), an L-shaped rod (10) is slidably connected inside the arc-shaped groove (9), a spring (11) is fixedly connected between the L-shaped rod (10) and the arc-shaped groove (9), and the bottom end of the L-shaped rod (10) is fixedly connected to the outer side wall of the linkage rod (4).

7. A steel bar welding device for highway bridge guardrail according to claim 1, characterized in that: The outer wall of the clamping cylinder (210) is threadedly connected with a positioning bolt (213), one end of the positioning bolt (213) away from the clamping cylinder (210) is fixedly connected with a knob (214), and the end of the positioning bolt (213) away from the knob (214) penetrates into the interior of the clamping cylinder (210).

8. A steel bar welding device for highway bridge guardrail according to claim 1, characterized in that: The end of the clamping tube (210) away from the welding mechanism (1) is fixedly connected to a butt ring (215), the side of the butt ring (215) away from the welding mechanism (1) is provided with a clamping disk (216), and the side of the clamping disk (216) close to the welding mechanism (1) is fixedly connected to a plurality of cross bars (217), and the end of the cross bar (217) away from the clamping disk (216) passes through the butt ring (215) and is slidably connected to the butt ring (215).

9. A steel bar welding device for highway bridge guardrail according to claim 8, characterized in that: A second spring (209) is fixedly connected to the opposing sides of the retaining ring (215) and the clamping plate (216) and located on the outer side of the cross bar (217).

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