A steel bar welding device for highway bridge guardrails

Abstract

The present invention discloses a steel bar welding device for highway bridge guardrails, belonging to the field of welding devices. It includes a welding mechanism, and clamping mechanisms are arranged on both sides of the welding mechanism. The clamping mechanism includes a mounting seat. On the relative sides of the two relatively left and right mounting seats, disks are rotatably connected through rotating shafts. A plurality of support rods are fixedly connected to the outer side wall of the disk. A shaft rod is rotatably connected to the inside of the support rod through a rotating shaft. A first gear and a second gear are respectively fixedly connected to the two ends of the shaft rod. A connecting frame is fixedly connected to the outer side wall of the support rod on the outer side of the shaft rod; the welding mechanism is used to realize the butt welding work of steel bars. Through the provided arc-shaped opening and cylindrical rod, the positions of multiple welding guns can be adjusted, thus facilitating welding of steel bars with different diameters. Through the provided abutting piece and threaded block, the moved cylindrical rod can be locked, and then the welding gun can be positioned.

Description

Technical Field

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

[0002] A highway is a road with a very high vehicle driving speed. Highways are only for high-speed driving of automobiles, with multiple lanes and a central divider to completely separate oncoming traffic, and have grade-separated intersections, are fully enclosed, with access control, and only allow automobiles to enter and exit at some specified grade-separated intersections. There are also bridges in highway sections, and these bridges are all equipped with guardrails. During the production of guardrails, a steel bar welding device is often required;

[0003] Patent Publication No. (CN109909635A) relates to a steel bar positioning welding device. A support frame is provided in the center of the upper part of the device body. A hydraulic cylinder is fixedly arranged inside the support frame. A welding torch is arranged between the hydraulic cylinders. The welding torch is connected to the top of the support frame through a slideway. 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. Legs are arranged at the lower part of the device body. A fixing rod is arranged between the legs. A servo motor is fixedly arranged on the fixing rod. The power end of the servo motor is connected to a lead screw. The upper end of the lead screw is rotatably connected to a fixing column. The upper part of the fixing column is fixedly connected to the device body. A fixing ring is also arranged on the fixing column. A movable ring is arranged on the lead screw. An upper connecting piece is arranged on the fixing ring. A lower connecting piece is arranged on the movable ring. The upper connecting piece and the lower connecting piece are connected to a telescopic frame. A fixing buckle is arranged at the hinge of the telescopic frame; the present 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 simultaneously, and it is not convenient to control the rotation of the steel bars, so it is impossible to ensure more comprehensive butt welding. Improvements are needed. For this reason, we propose a steel bar welding device for highway bridge guardrails. Summary of the Invention

[0005] Object of the Invention: The object of the present invention is to provide a device that can butt and weld multiple groups of steel bars simultaneously; another object of the present invention is to provide a device that can rotate multiple steel bars simultaneously to make the 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 base. On the opposite sides of the two left-and-right opposite mounting bases, disks are rotatably connected through rotating shafts. A plurality of support rods are fixedly connected to the outer side walls of the disks. A shaft rod is rotatably connected to the inside of the support rod through a rotating shaft. A first gear and a second gear are respectively fixedly connected to the two ends of the shaft rod. A connecting frame is fixedly connected to the outer side wall of the support rod on the outer side of the shaft rod. One end of the connecting frame away from the disk is fixedly connected to a circular ring. A clamping cylinder is rotatably connected to the inside of the circular ring through a rotating shaft. A third gear is fixedly connected to the outer side wall of the clamping cylinder. The third gear is meshed and connected with the first gear. On the opposite sides of the two left-and-right opposite mounting bases, and on the outer sides of the plurality of second gears, a toothed ring is fixedly connected. The toothed ring is meshed and connected with the second gear;

[0008] A motor is fixedly connected to the left side of the mounting base 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 disk located on the left side of the welding mechanism. A linkage rod is fixedly connected between the two left-and-right opposite disks.

[0009] Furthermore, the welding mechanism includes a welding base. A through arc-shaped opening is formed on the right side of the welding base. A plurality of cylindrical rods are arranged inside the arc-shaped opening. A clamping seat is fixedly connected to the right end of the cylindrical rod. A welding gun is clamped inside the clamping seat. A threaded block is threadedly connected to the outer side wall of the cylindrical rod on the left side of the welding base.

[0010] Furthermore, a butting piece is fixedly connected to the outer side wall of the cylindrical rod on the right side of the welding base.

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

[0012] Furthermore, a threaded bolt is threadedly connected to the mounting base located on the right side of the welding mechanism. The left end of the threaded bolt penetrates through the mounting base. A positioning hole is formed on the right side of the disk located on the right side of the welding mechanism.

[0013] Furthermore, an arc-shaped groove is formed on the left side of the disk located on the right side of the welding mechanism. An L-shaped rod is slidably connected inside the arc-shaped groove. A first spring is fixedly connected between the L-shaped rod and the arc-shaped groove. The bottom end of the L-shaped rod is fixedly connected to the outer side wall of the linkage rod.

[0014] Furthermore, a positioning bolt is threadedly connected to the outer side wall of the clamping cylinder. A knob is fixedly connected to the end of the positioning bolt away from the clamping cylinder. The end of the positioning bolt away from the knob penetrates into the inside of the clamping cylinder.

[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. Beneficial Effects

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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

[0022] Figure 1 It is a front view structural schematic diagram of the present invention;

[0023] Figure 2 is a schematic rear view structure of the present invention;

[0024] Figure 3 is a schematic structure diagram of the clamping mechanism of the present invention;

[0025] Figure 4 is a schematic side view structure diagram of the clamping mechanism of the present invention;

[0026] Figure 5 is a schematic connection structure diagram of the support rod, connecting frame, and clamping cylinder of the present invention;

[0027] Figure 6 is a schematic structure diagram of the welding mechanism of the present invention;

[0028] Figure 7 is a schematic rear view structure diagram of the welding mechanism of the present invention.

[0029] 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 opening; 103, cylindrical rod; 104, engaging seat; 105, welding gun; 106, threaded block; 107, abutting piece; 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, toothed ring; 213, positioning bolt; 214, knob; 215, abutting ring; 216, clamping disc; 217, cross bar. Detailed implementation manners

[0030] To make the technical solutions of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments. Embodiment

[0031] As Figure 6 and Figure 7 shown, a steel bar welding device for a highway bridge guardrail is provided, which includes a welding mechanism 1. The welding mechanism 1 includes a welding seat 101. A through 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. The right end of the cylindrical rod 103 is fixedly connected to an engaging seat 104. A welding gun 105 is engaged inside the engaging seat 104. A threaded block 106 is threadedly connected to the outer side wall of the cylindrical rod 103 to the left of the welding seat 101. An abutting piece 107 is fixedly connected to the outer side wall of the cylindrical rod 103 to the right of the welding seat 101;

[0032] The welding mechanism 1 is used to realize the butt welding of steel bars. Through the arc-shaped opening 102 and the cylindrical rod 103 provided, the positions of multiple welding guns 105 can be adjusted, thus facilitating the welding of steel bars with different diameters. Through the abutting piece 107 and the threaded block 106 provided, the moved cylindrical rod 103 can be locked, and then the welding gun 105 can be positioned.

[0033] As Figure 3 , Figure 4 and Figure 5 shown, clamping mechanisms 2 are provided on both sides of the welding mechanism 1. The clamping mechanism 2 includes a mounting seat 201. On the opposite sides of the two left-right opposite mounting seats 201, a disc 202 is rotatably connected through a rotating shaft. A plurality of support rods 203 are fixedly connected to the outer side wall of the disc 202. A shaft rod 204 is rotatably connected to the inside of the support rod 203 through a rotating shaft. A first gear 205 and a second gear 206 are respectively fixedly connected to both ends of the shaft rod 204. A connecting frame 207 is fixedly connected to the outer side wall of the support rod 203 outside the shaft rod 204. One end of the connecting frame 207 away from the disc 202 is fixedly connected to a ring 208. A clamping cylinder 210 is rotatably connected to the inside of the ring 208 through a rotating shaft. A third gear 211 is fixedly connected to the outer side wall of the clamping cylinder 210. The third gear 211 is meshed and connected with the first gear 205. On the opposite sides of the two left-right opposite mounting seats 201, and outside a plurality of second gears 206, a toothed ring 212 is fixedly connected. The toothed ring 212 is meshed and connected with the second gear 206. A motor 3 is fixedly connected to the left side 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. A linkage rod 4 is fixedly connected between the two left-right opposite discs 202;

[0034] The two steel bars to be butt welded are respectively placed inside the left-right opposite clamping cylinders 210. Through the plurality of clamping cylinders 210 provided, multiple groups of steel bars can be placed at the same time for butt welding. When the motor 3 is started and driven by the linkage rod 4, the two discs 202 can be driven to rotate together, thereby driving the plurality of steel bars to move along the inner circumference of the toothed ring 212. At the same time, through the meshing of the third gear 211 and the first gear 205, and the meshing of the second gear 206 and the toothed ring 212, the plurality of steel bars can be driven to rotate together with the clamping cylinders 210, so that when the welding mechanism 1 performs welding, when welding multiple groups of steel bars to be welded at the same time, the steel bars can rotate automatically, making the welding more comprehensive. Moreover, the multiple welding guns 105 at different positions weld at different positions, avoiding the problem of missed welding. And through the control of the external intelligent controller, the multiple welding guns 105 can be controlled to weld a group of steel bars. When waiting for the next group of steel bars to reach the welding position, the cooling can be briefly stopped to avoid the problem of overheating of the device during long-term operation;

[0035] The mounting base 201 located on the right side of the welding mechanism 1 is threadedly connected with a threaded bolt 7. The left end of the threaded bolt 7 penetrates through the mounting base 201. A positioning hole 8 is formed on the right side of the disk 202 located on the right side of the welding mechanism 1. An arc-shaped groove 9 is formed on the left side of the disk 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 first spring 11 is fixedly connected between the L-shaped rod 10 and the arc-shaped groove 9. The bottom end of the L-shaped rod 10 is fixedly connected to the outer side wall of the linkage rod 4;

[0036] Before inserting the steel bar into the multiple groups of clamping cylinders 210 that are opposite to each other left and right, by rotating the disk 202 on one side, and then inserting the threaded bolt 7 into the positioning hole 8, the clamping cylinders 210 that are opposite to each other left and right are misaligned, thus facilitating the insertion of the steel bar into the clamping cylinders 210. After the placement is completed, rotate the threaded bolt 7 to disengage it from the positioning hole 8. Under the pulling of the first spring 11, the disk 202 resets. At this time, it is convenient to butt the opposite ends of the steel bar;

[0037] The outer side 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. One end of the positioning bolt 213 away from the knob 214 penetrates into the clamping cylinder 210. One end of the clamping cylinder 210 away from the welding mechanism 1 is fixedly connected with an abutting ring 215. A clamping disk 216 is arranged on the side of the abutting 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. One end of the cross bar 217 away from the clamping disk 216 penetrates through the abutting ring 215 and is slidably connected with the abutting ring 215. A second spring 209 is fixedly connected to the opposite sides of the abutting ring 215 and the clamping disk 216 and on the outer side of the cross bar 217;

[0038] After the opposite ends of the steel bar are butted, under the pulling of the second spring 209, the two clamping disks 216 that are opposite to each other left and right will abut against the steel bar, making the butt joint of the steel bar closer. At the same time, the steel bar can be further positioned by rotating the knob 214 by hand, making the clamping of the steel bar more stable and not easily movable.

[0039] As Figure 1 and Figure 2 shown, a bottom plate 5 is fixedly connected to the bottom of the welding seat 101. Support frames 6 are fixedly connected to both sides of the bottom plate 5. The top of the support frame 6 is fixedly connected to the bottom of the mounting base 201;

[0040] It plays a role in supporting and placing.

[0041] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several variations and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. A steel bar welding device for a highway bridge guardrail, comprising a welding mechanism (1), characterized in that: Clamping mechanisms (2) are arranged on both sides of the welding mechanism (1); The clamping mechanism (2) includes a mounting base (201). Discs (202) are rotatably connected to the opposite sides of the two mounting bases (201) that are opposite to each other left and right through rotating shafts. A plurality of support rods (203) are fixedly connected to the outer side wall of the disc (202). A shaft rod (204) is rotatably connected to the inside of the support rod (203) through a rotating shaft. A first gear (205) and a second gear (206) are respectively fixedly connected to the two ends of the shaft rod (204). A connecting frame (207) is fixedly connected to the outer side wall of the support rod (203) on the outer side of the shaft rod (204). One end of the connecting frame (207) away from the disc (202) is fixedly connected to a ring (208). A clamping cylinder (210) is rotatably connected to the inside of the ring (208) through a rotating shaft. A third gear (211) is fixedly connected to the outer side wall of the clamping cylinder (210). The third gear (211) is meshed and connected with the first gear (205). On the opposite sides of the two mounting bases (201) that are opposite to each other left and right, and on the outer side of a plurality of second gears (206), a toothed ring (212) is fixedly connected. The toothed ring (212) is meshed and connected with the second gear (206); A motor (3) is fixedly connected to the left side of the mounting base (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 center of the left side of the disc (202) located on the left side of the welding mechanism (1). A linkage rod (4) is fixedly connected between the two discs (202) that are opposite to each other left and right.

2. The steel bar welding device for a highway bridge guardrail according to claim 1, characterized in that: The welding mechanism (1) includes a welding base (101). A through arc-shaped opening (102) is formed on the right side of the welding base (101). A plurality of cylindrical rods (103) are arranged inside the arc-shaped 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). A threaded block (106) is threadedly connected to the outer side wall of the cylindrical rod (103) on the left side of the welding base (101).

3. The steel bar welding device for highway bridge guardrails according to claim 2, characterized in that: An abutting piece (107) is fixedly connected to the outer side wall of the cylindrical rod (103) on the right side of the welding base (101).

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

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

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

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

8. The steel bar welding device for a highway bridge guardrail according to claim 1, characterized in that: One end of the clamping cylinder (210) away from the welding mechanism (1) is fixedly connected to an abutting ring (215). On one side of the abutting ring (215) away from the welding mechanism (1), there is a clamping disc (216). A plurality of cross bars (217) are fixedly connected to the side of the clamping disc (216) close to the welding mechanism (1). One end of the cross bar (217) away from the clamping disc (216) penetrates through the abutting ring (215) and is slidably connected to the abutting ring (215).

9. The steel bar welding device for a highway bridge guardrail according to claim 8, characterized in that: On the opposite sides of the abutting ring (215) and the clamping disc (216), and on the outer side of the cross bar (217), a second spring (209) is fixedly connected together.

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