Automatic steel bar welding equipment

Abstract

The automatic steel bar welding equipment comprises a guide rail and a workbench, a welding robot, a feeding and discharging robot and a rack are arranged on the guide rail. A clamp for clamping a reinforcing steel bar is arranged on the workbench; the welding robot comprises a bottom plate A; a mechanical arm A is arranged above the bottom plate A, and a gear A driven by a motor A is arranged below the bottom plate A; a welding gun is arranged at the end part of the mechanical arm A; the loading and unloading robot comprises a bottom plate B; a mechanical arm B is arranged above the bottom plate B, and a gear B driven by a motor B is arranged below the bottom plate B; a pneumatic chuck is arranged at the end part of the mechanical arm B; and the gear A and the gear B are respectively meshed with the rack. According to the welding equipment, automatic feeding and discharging of the steel bars and automatic welding of the steel bars at any point in the space can be achieved, the labor cost is reduced, the welding efficiency and the welding precision are improved, and application and popularization are facilitated; when steel bars of different types need to be welded, only corresponding clamps need to be replaced, and universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar welding, in particular to an automatic steel bar welding device. Background Art

[0002] Steel bars refer to steel used for reinforced concrete and prestressed reinforced concrete. The cross section is circular, sometimes square with rounded corners; it includes plain round steel bars, ribbed steel bars, twisted steel bars, etc. In bridge construction projects, it is necessary to build multiple steel bars into various frame structures according to specific design requirements to achieve the required support effect; the intersection of two steel bars is usually reinforced by welding. In the prior art, the welding of steel bars is mostly done manually. Workers carry two steel bars to be welded and align the ends by manual pressure, and then weld the joints with a handheld welding gun. This method requires a large labor cost, is time-consuming and labor-intensive, and has low work efficiency. In addition, the ends of the two steel bars are prone to misalignment during the welding process, thereby affecting the welding accuracy. There are also some mechanized welding methods using welding equipment, but these welding equipment can only weld in a single direction and a single spacing, which is not flexible enough, has a low degree of automation, and has poor versatility. Utility Model Content

[0003] In order to overcome the above problems existing in the prior art, the present application provides an automated steel bar welding device. The automated steel bar welding device of the present application can realize automatic loading and unloading of steel bars, as well as welding of steel bars at any point in space by setting a welding robot and a loading and unloading robot. It has a high degree of automation, reduces labor costs, improves welding efficiency and welding accuracy, and is conducive to popularization and use; and the welding robot and the loading and unloading robot are connected to the guide rail transmission through a gear rack transmission mechanism, and the transmission stability and transmission accuracy are high, so that the movement stability of the welding robot and the loading and unloading robot is high, ensuring the working reliability of the welding equipment; in addition, when different types of steel bars need to be welded, only the corresponding clamps need to be replaced, and the versatility is high.

[0004] The technical solution of this application is:

[0005] Automated steel bar welding equipment comprises a guide rail and a workbench; a welding robot, a loading and unloading robot and a rack are arranged on the guide rail; a clamp for clamping steel bars is arranged on the workbench; the welding robot comprises an A base plate; an A mechanical arm is arranged above the A base plate, and an A gear is arranged below the A base plate; a welding gun is arranged at the end of the A mechanical arm; the A gear is connected to the A motor; the loading and unloading robot comprises a B base plate; a B mechanical arm is arranged above the B base plate, and a B gear is arranged below the B base plate; a pneumatic chuck is arranged at the end of the B mechanical arm; the B gear is connected to the B motor; the A gear and the B gear are respectively meshed with the rack, and under the drive of the A motor and the B motor, the welding robot and the loading and unloading robot can be driven to move relative to the rack.

[0006] Compared with the prior art, the automated steel bar welding equipment of the present application includes a welding robot and a loading and unloading robot arranged on a guide rail; wherein the loading and unloading robot is used to place and align the steel bars in the fixture, and unload the welded steel bars, and the welding robot is used to weld the steel bars in the fixture, thereby realizing automatic loading and unloading and automatic welding of the steel bars, with a high degree of automation, reducing labor costs, improving welding efficiency and welding accuracy, and being conducive to promotion and use; and the welding robot and the loading and unloading robot are connected to the guide rail transmission through a gear rack transmission mechanism, with high transmission stability and transmission accuracy, so that the movement stability of the welding robot and the loading and unloading robot is relatively high, in addition, when different types of steel bars need to be welded, only the corresponding fixture needs to be replaced, and the versatility is high. During welding, the loading and unloading robot places the steel bars to be welded on the fixture, and then the welding robot performs welding; after welding is completed, the loading and unloading robot performs unloading and re-places new steel bars.

[0007] As an optimization, in the aforementioned automated steel bar welding equipment, the fixture is arranged on a turntable on top of the workbench; the turntable is connected to the C motor in a transmission manner and can be rotated under the drive of the C motor. Thus, the fixture can be transported to the loading and unloading area or the welding area by rotating the turntable. At this time, the welding robot and the loading and unloading robot only need to move in the corresponding area, making the stability of the entire welding equipment higher. Furthermore, the turntable is connected to the C motor in a transmission manner through a gear structure. At this time, the structure is simple and easy to assemble.

[0008] As an optimization, in the aforementioned automated steel bar welding equipment, two clamps are arranged on the turntable at intervals. Thus, while the welding robot is welding the steel bars in one of the clamps, the loading and unloading robot can unload the already welded steel bars in the other clamp, and re-clamp the steel bars and place them in the clamp, further improving production efficiency.

[0009] As an optimization, in the aforementioned automated steel bar welding equipment, the guide rail includes an inner arc track and an outer arc track arranged at intervals, and the two ends of the inner arc track are connected to the two ends of the outer arc track through limiting plates; the rack is arc-shaped and located between the inner arc track and the outer arc track, and the two ends of the rack are fixed to the two limiting plates. The guide rail adopts the above structure, which is compact and has good integrity.

[0010] Furthermore, below the A base plate, on both sides of the A gear, there are a set of A auxiliary wheels in contact with the inner arc track and the outer arc track; below the B base plate, on both sides of the B gear, there are a set of B auxiliary wheels in contact with the inner arc track and the outer arc track. At this time, when the welding robot and the loading and unloading robot move relative to the rack, the auxiliary wheels will move synchronously relative to the arc track, so that the force on the base plate is more uniform, thereby further ensuring the stability of the welding robot and the loading and unloading robot during operation. Furthermore, two A auxiliary wheels and two B auxiliary wheels are respectively provided on both sides of the inner arc track; two A auxiliary wheels and two B auxiliary wheels are also respectively provided on both sides of the outer arc track.

[0011] As an optimization, in the aforementioned automated steel bar welding equipment, the clamp is circular and integrally formed of elastic material; the clamp is provided with an arc-shaped clamping groove and a strip-shaped clamping groove; the size of the arc-shaped clamping groove and the strip-shaped clamping groove is smaller than the size of the steel bar; when the steel bar is placed in the corresponding clamping groove, the steel bar will be elastically wrapped by the clamping groove to form a clamping force. The clamp adopts the above structure, which is easy to manufacture and can achieve the connection between steel bars of different structures.

[0012] As an optimization, in the aforementioned automated steel bar welding equipment, the A mechanical arm includes a rotatably connected A mechanical arm and an A transmission arm; the A mechanical arm is fixed on the A bottom plate; the welding gun is rotatably arranged at the end of the A transmission arm; the B mechanical arm includes a rotatably connected B mechanical arm and a B transmission arm; the B mechanical arm is fixed on the B bottom plate; the pneumatic chuck is rotatably arranged at the end of the B transmission arm. As a result, the mechanical arm has multiple degrees of freedom and high flexibility in use, which facilitates the loading and unloading robots to adjust the position of the steel bars and realizes the welding work of the welding robot at any point in space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the automated steel bar welding equipment of the present application;

[0014] Figure 2 It is a schematic diagram of the assembly of the rack and the guide rail in this application;

[0015] Figure 3 It is a schematic diagram of the structure of the workbench in this application;

[0016] Figure 4 It is a schematic diagram of the structure of the welding robot in this application;

[0017] Figure 5 It is a schematic diagram of the bottom structure of the A bottom plate in this application;

[0018] Figure 6 It is a structural schematic diagram of the loading and unloading robot in this application;

[0019] Figure 7 It is a schematic diagram of the bottom structure of the B bottom plate in this application;

[0020] Figure 8 It is a schematic diagram of the structure of the clamp in this application;

[0021] Fig. 9 It is a schematic diagram of a welded steel bar frame in an embodiment of the present application.

[0022] The markings in the accompanying drawings are: 1-guide rail, 11-inner arc track, 12-outer arc track, 13-limiting plate; 2-workbench, 21-turntable, 22-C motor; 3-welding robot, 31-A base plate, 32-A mechanical arm, 321-A mechanical arm, 322-A transmission arm, 33-A gear, 34-welding gun, 35-A motor, 36-A auxiliary wheel; 4-loading and unloading robot, 41-B base plate, 42-B mechanical arm, 421-B mechanical arm, 422-B transmission arm, 43-B gear, 44-pneumatic chuck, 45-B motor, 46-B auxiliary wheel; 5-rack; 6-clamp, 601-arc clamping groove, 602-strip clamping groove; 7-short arc steel bar; 8-long arc steel bar; 9-strip steel bar; 10-weld seam. DETAILED DESCRIPTION

[0023] The present application is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present application.

[0024] Example (see Figures 1 to 8 ):

[0025] The automated steel bar welding equipment comprises a guide rail 1 and a workbench 2; a welding robot 3, a loading and unloading robot 4 and a rack 5 are arranged on the guide rail 1; a clamp 6 for clamping steel bars is arranged on the workbench 2; the welding robot 3 comprises an A base plate 31; an A mechanical arm 32 is arranged above the A base plate 31, and an A gear 33 is arranged below; a welding gun 34 is arranged at the end of the A mechanical arm 32; the A gear 33 is connected to an A motor 35; the loading and unloading robot 4 comprises a B base plate 41; a B mechanical arm 42 is arranged above the B base plate 41, and a B gear 43 is arranged below; a pneumatic chuck 44 is arranged at the end of the B mechanical arm 42; the B gear 43 is connected to a B motor 45; the A gear 33 and the B gear 43 are respectively meshed with the rack 5, and driven by the A motor 35 and the B motor 45, the welding robot 3 and the loading and unloading robot 4 can be driven to move relative to the rack 5.

[0026] In this embodiment, the fixture 6 is arranged on a turntable 21 on the top of the workbench 2; the turntable 21 is connected to the C motor 22 by transmission, and can be rotated under the drive of the C motor 22. Therefore, the fixture 6 can be transported to the loading and unloading area or the welding area by rotating the turntable 21. At this time, the welding robot 3 and the loading and unloading robot 4 only need to move in the corresponding area, so that the stability of the entire welding equipment is higher. Furthermore, the turntable 21 is connected to the C motor 22 by transmission through a gear structure (the gear structure is arranged inside the workbench 2). At this time, the structure is simple and easy to assemble.

[0027] In this embodiment, two clamps 6 are arranged at intervals on the turntable 21. Therefore, while the welding robot 3 is welding the steel bars in one of the clamps 6, the loading and unloading robot 4 can unload the steel bars that have been welded in the other clamp 6, and re-clamp the steel bars and place them in the clamp 6, further improving the production efficiency.

[0028] In this embodiment, the guide rail 1 includes an inner arc track 11 and an outer arc track 12 arranged at intervals, and the two ends of the inner arc track 11 are connected to the two ends of the outer arc track 12 through the limit plates 13; the rack 5 is arc-shaped and located between the inner arc track 11 and the outer arc track 12, and the two ends of the rack 5 are respectively fixed on the two limit plates 12. The guide rail 1 adopts the above structure, which is compact and has good integrity, and the A gear 33, the B gear 43 and the rack 5 form a gear transmission structure with a large load-bearing capacity.

[0029] In this embodiment, below the A bottom plate 31, on both sides of the A gear 33, there are four A auxiliary wheels 36 in contact with the inner arc track 11 and the outer arc track 12; below the B bottom plate 41, on both sides of the B gear 43, there are four B auxiliary wheels 46 in contact with the inner arc track 11 and the outer arc track 12; two A auxiliary wheels 36 and two B auxiliary wheels 46 are respectively provided on both sides of the inner arc track 11; two A auxiliary wheels 36 and two B auxiliary wheels 46 are also respectively provided on both sides of the outer arc track 12. At this time, when the welding robot 3 and the loading and unloading robot 4 move relative to the rack 5, the auxiliary wheels will move synchronously relative to the arc track, so that the force on the bottom plate is more uniform, thereby further ensuring the stability of the welding robot 3 and the loading and unloading robot 4 during operation.

[0030] The tops of the inner arc track 11 and the outer arc track 12 are both provided with limiting edges, and the limiting edges are located above the A auxiliary wheel 36 and the B auxiliary wheel 46 to limit the A auxiliary wheel 36 and the B auxiliary wheel 46 .

[0031] In this embodiment, the clamp 6 is circular and is integrally formed of an elastic material; the clamp 6 is provided with an arc-shaped clamping groove 601 and a strip-shaped clamping groove 602; the sizes of the arc-shaped clamping groove 601 and the strip-shaped clamping groove 602 are smaller than the sizes of the steel bars; when the steel bars are placed in the corresponding clamping grooves, the steel bars will be elastically wrapped by the clamping grooves to form a clamping force. The clamp 6 adopts the above-mentioned structure, which is easy to manufacture and can realize the connection between steel bars of different structures. Furthermore, four strip-shaped clamping grooves 602 are evenly spaced along the circumferential direction on the clamp 6, and short arc-shaped clamping grooves and long arc-shaped clamping grooves are respectively provided at both ends of the strip-shaped clamping grooves 602; the welded steel bar weldment is as shown in FIG. Fig. 9 As shown, it can be used when pouring bridge piers. In actual use, the clamp 6 of corresponding shape can be replaced according to different welding objects.

[0032] In this embodiment, the A mechanical arm 32 includes a rotatably connected A mechanical arm 321 and an A transmission arm 322; the A mechanical arm 321 is fixed on the A bottom plate 31; the welding gun 34 is rotatably arranged at the end of the A transmission arm 322; the B mechanical arm 42 includes a rotatably connected B mechanical arm 421 and a B transmission arm 422; the B mechanical arm 421 is fixed on the B bottom plate 41; the pneumatic chuck 44 is rotatably arranged at the end of the B transmission arm 422. As a result, the mechanical arm has multiple degrees of freedom and high flexibility in use, which facilitates the loading and unloading robot 4 to adjust the position of the steel bar and realizes the welding work of the welding robot 3 at any point in space.

[0033] How it works:

[0034] During welding, the welding objects are placed on the fixture 6 in order by the loading and unloading robot 3; the C motor 22 drives the turntable 21 to rotate, and the fixture 6 with the welding object is transported to the welding area, and the welding robot 3 performs welding. At the same time, the fixture 6 with the welded steel bars is transported to the loading and unloading area, and the loading and unloading robot 4 unloads and re-places the welding object.

[0035] The above general description of the utility model involved in this application and the description of its specific implementation method should not be understood as limiting the technical solution of the utility model. Based on the disclosure of this application, those skilled in the art can add, reduce or combine the disclosed technical features in the above general description or / and the specific implementation method (including examples) without violating the constituent elements of the utility model involved, to form other technical solutions within the scope of protection of this application.

Claims

1. Automated steel bar welding equipment, characterized by: The invention comprises a guide rail (1) and a workbench (2); the guide rail (1) is provided with a welding robot (3), a loading and unloading robot (4) and a rack (5); the workbench (2) is provided with a clamp (6) for clamping steel bars; the welding robot (3) comprises an A base plate (31); an A mechanical arm (32) is provided above the A base plate (31), and an A gear (33) is provided below the A base plate (31); a welding gun (34) is provided at the end of the A mechanical arm (32); the A gear (33) is connected to an A motor (35); the loading and unloading robot (4) and a rack (5) are provided on the guide rail (1); a clamp (6) for clamping steel bars is provided on the workbench (2); the welding robot (3) comprises an A base plate (31); an A mechanical arm (32) is provided above the A base plate (31), and an A gear (33) is provided below the A base plate (31); a welding gun (34) is provided at the end of the A mechanical arm (32); the A gear (33) is connected to an A motor (35); The robot (4) comprises a B base plate (41); a B mechanical arm (42) is arranged above the B base plate (41), and a B gear (43) is arranged below the B base plate (41); a pneumatic chuck (44) is arranged at the end of the B mechanical arm (42); the B gear (43) is connected to a B motor (45); the A gear (33) and the B gear (43) are respectively meshed with a rack (5), and under the drive of the A motor (35) and the B motor (45), the welding robot (3) and the loading and unloading robot (4) can be driven to move relative to the rack (5).

2. The automated steel bar welding equipment according to claim 1, characterized in that: The clamp (6) is arranged on a turntable (21) on the top of the workbench (2); the turntable (21) is drivingly connected to a C motor (22) and can rotate under the drive of the C motor (22).

3. The automated steel bar welding equipment according to claim 2, characterized in that: The rotating disk (21) is transmission-connected to the C motor (22) via a gear structure.

4. The automated steel bar welding equipment according to claim 2, characterized in that: Two clamps (6) are arranged on the rotating disk (21) at intervals.

5. The automated steel bar welding equipment according to claim 4 is characterized in that: The guide rail (1) comprises an inner arc track (11) and an outer arc track (12) which are arranged at intervals, and the two ends of the inner arc track (11) are connected to the two ends of the outer arc track (12) through limiting plates (13); the rack (5) is arc-shaped and is located between the inner arc track (11) and the outer arc track (12), and the two ends of the rack (5) are respectively fixed on the two limiting plates (13).

6. The automated steel bar welding equipment according to claim 5, characterized in that: A group of A auxiliary wheels (36) in contact with the inner arc track (11) and the outer arc track (12) are respectively provided below the A bottom plate (31) and located on both sides of the A gear (33); a group of B auxiliary wheels (46) in contact with the inner arc track (11) and the outer arc track (12) are respectively provided below the B bottom plate (41) and located on both sides of the B gear (43).

7. The automated steel bar welding equipment according to claim 6, characterized in that: Two A auxiliary wheels (36) and two B auxiliary wheels (46) are respectively provided on both sides of the inner arc track (11); and two A auxiliary wheels (36) and two B auxiliary wheels (46) are also respectively provided on both sides of the outer arc track (12).

8. The automated steel bar welding equipment according to claim 7, characterized in that: The clamp (6) is circular and is integrally formed of an elastic material; an arc-shaped clamping groove (601) and a strip-shaped clamping groove (602) are provided on the clamp (6); the size of the arc-shaped clamping groove (601) and the strip-shaped clamping groove (602) are smaller than the size of the steel bar.

9. The automated steel bar welding equipment according to claim 1, characterized in that: The A mechanical arm (32) comprises an A mechanical arm (321) and an A transmission arm (322) which are rotatably connected; the A mechanical arm (321) is fixed on the A base plate (31); the welding gun (34) is rotatably arranged at the end of the A transmission arm (322); the B mechanical arm (42) comprises a B mechanical arm (421) and a B transmission arm (422) which are rotatably connected; the B mechanical arm (421) is fixed on the B base plate (41); the pneumatic chuck (44) is rotatably arranged at the end of the B transmission arm (422).

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