Non-standard structural part welding robot

Abstract

The utility model relates to the technical field of welding, in particular to a non-standard structural part welding robot which comprises a rack and a welding gun, fixing seats are symmetrically arranged on the two sides of the top end of the rack, a guide rail is fixedly connected between the two fixing seats, an electric sliding table is connected to the guide rail in a sliding mode, and a rotatable mechanical arm is installed at the top end of the electric sliding table. A welding gun is fixedly mounted at the tail end of the mechanical arm, three sets of mounting bases which are evenly distributed are fixedly mounted at the top end of the rack on one side of the guide rail, the mounting bases are mutually symmetrical, first mounting frames which are mutually symmetrical are rotationally connected to the tops of the mounting bases, and a mounting plate is fixedly mounted at the top ends of the three first mounting frames on each adjacent side. A protection mechanism is arranged on the side wall of the mounting plate. And the protection mechanism can block sparks and flying chips generated by welding below the protection cover at any time in the welding operation process, so that the sparks are prevented from damaging a welding gun and other equipment, and the equipment maintenance frequency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field especially relates to a nonstandard structural part welding robot. BACKGROUND

[0002] The welding robot is a multipurpose industrial robot engaged in welding work, and metal structural parts are welded, cut or thermal sprayed through automatic control.

[0003] The welding precision of the welding robot is mainly controlled by the program, but the prerequisite is the accurate positioning of the metal structural parts, especially some tubular nonstandard metal structural parts, which may slip during welding and affect the welding precision. At the same time, the welding gun of the welding robot lacks protection effect, and the flying sparks and flying chips after long-term use can easily damage the welding robot, reduce the service life and increase the use cost. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a nonstandard structural part welding robot.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A nonstandard structural part welding robot, comprising a rack and a welding gun, the rack top two sides are symmetrically provided with fixed seat, two fixed seats are fixedly connected with guide rail, the guide rail is slidably connected with electric sliding table, the electric sliding table top is installed with rotatable mechanical arm, the mechanical arm tail end is fixedly installed with welding gun, the rack top of one side of guide rail is fixedly installed with three groups of mounting seat which are uniformly distributed, each group of mounting seat is mutually symmetrical, the top of each group of mounting seat is rotatably connected with mutually symmetrical first mounting frame, the top of every adjacent one side three first mounting frames is fixedly installed with one mounting plate, the side wall of mounting plate is provided with protection mechanism, the rack top between three groups of mounting seat is fixedly installed with positioning seat, the positioning seat is provided with positioning mechanism;

[0007] The protection mechanism comprises a sliding groove and a protective cover, and the opposite side walls of the two mounting plates are symmetrically provided with the sliding grooves, the sliding grooves are slidably connected with spherical sliding blocks, and the side walls of the spherical sliding blocks are fixedly connected with the protective covers which are open at the top and bottom.

[0008] Preferably, the mounting plate is uniformly provided with threaded bolts fasteners, and the bottom end of each threaded bolt fastener is fixedly connected with a first positioning block.

[0009] Preferably, the positioning mechanism comprises a positioning slide rod and a second positioning block, the positioning seat is provided with three groups of positioning grooves which are mutually symmetrical on both sides, the three groups of positioning grooves are positionally corresponding to the three groups of first mounting frames, the positioning grooves are slidably connected with the positioning slide rods, and the top end of the positioning slide rod is rotatably connected with the second positioning block.

[0010] Preferably, the positioning slide rod top is fixedly connected with a steel wire rope, the steel wire rope is threaded out of the positioning groove top, and the ends of each steel wire rope are fixedly connected with the bottoms of each first mounting frame.

[0011] Preferably, a group of mutually symmetrical mounting seats two are fixedly installed on one side of the mounting seat below one end of the mounting plate, the mounting seat two is same in structure and parallel in position with the mounting seat, the second mounting frame is rotatably connected with the top of the opposite surface of the mounting seat two, and the top end of the second mounting frame is fixedly connected with the bottom end of the mounting plate.

[0012] Preferably, the first mounting frame and the second mounting frame are rotatably connected with rotating blocks at the bottoms of opposite surfaces, the two rotating blocks are threadedly connected with bidirectional screw rods, and the one end of the bidirectional screw rod is fixedly connected with a rotating disc.

[0013] Preferably, the top of the positioning seat is in arc structure, and the two half pipe fittings to be welded are placed on the top of the positioning seat.

[0014] Compared with the prior art, the welding robot for non-standard structural members has the advantages that:

[0015] The welding robot for non-standard structural members has the advantages that: the mounting plate and the protection mechanism are arranged, the protection mechanism is linked with the mounting plate, when the pipe fitting is placed on the top end of the positioning seat, the two mounting plates are rotated to approach each other and finally make the two protection covers approach the gun head of the welding gun respectively, at this time, the two protection covers are combined into one, and when the welding gun is moved by the electric sliding table, the combined protection cover moves along the sliding groove with the welding gun, so that the sparks and flying chips generated during the welding operation can be blocked below the protection cover at any time, the sparks are prevented from damaging the welding gun and other equipment, and the equipment maintenance frequency is reduced.

[0016] The welding robot for non-standard structural members has the advantages that: the positioning mechanism is arranged, the positioning mechanism is controlled through the rotation of the first mounting frame and the pulling of the steel wire rope, the position of the first mounting frame is locked through the self-locking effect of the bidirectional screw rod, the bolt fastener is manually operated, after the two mounting plates are made to approach each other by operating the rotating disc and the bottom of the pipe fitting is positioned by the positioning mechanism, the top of the pipe fitting is fixed and positioned by using the bolt fastener, the pipe fitting to be welded is fully fixed by the positioning mechanism cooperating with the bolt fastener and cannot be deviated, and the welding quality is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall structural schematic view of the welding robot for non-standard structural members;

[0018] Figure 2 It is a side view of the welding robot for non-standard structural members;

[0019] Figure 3The utility model provides a kind of non-standard structural member welding robot's protection mechanism structure schematic view.

[0020] Figure 4 The utility model provides a kind of non-standard structural member welding robot's plan view.

[0021] Figure 5 The utility model provides a kind of non-standard structural member welding robot's second mounting bracket structure schematic view.

[0022] Figure 6 The utility model provides a kind of non-standard structural member welding robot's positioning mechanism structure schematic view.

[0023] In the drawing: 1, rack; 2, fixed seat; 3, guide rail; 4, electric sliding table; 5, mechanical arm; 6, welding gun; 7, mounting seat; 8, first mounting bracket; 9, second mounting bracket; 10, mounting plate; 101, bolt fastener; 11, protection mechanism; 12, sliding groove; 13, spherical sliding block; 14, protective cover; 15, positioning seat; 16, positioning mechanism; 17, positioning groove; 18, positioning sliding rod; 19, second positioning block; 20, steel wire rope; 21, rotating block; 22, bidirectional screw; 23, rotating disc; 24, pipe fitting. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Refer to Figures 1-6 A kind of non-standard structural member welding robot, including rack 1 and welding gun 6, rack 1 top end both sides symmetrical fixed seat 2 are provided with, two fixed seats 2 between fixedly connected with guide rail 3, guide rail 3 is slidably connected with electric sliding table 4, electric sliding table 4 top end is installed rotatable mechanical arm 5, mechanical arm 5 end fixedly installed with welding gun 6, rack 1 top end of guide rail 3 side is fixedly installed with the three groups of mounting seat 7 that are evenly distributed, each group of mounting seat 7 is mutually symmetrical, the top of each group of mounting seat 7 is rotatably connected with mutually symmetrical first mounting bracket 8, every adjacent one side three first mounting brackets 8 top end is fixedly installed with an installation plate 10, installation plate 10 side wall is provided with protection mechanism 11, rack 1 top end between three groups of mounting seat 7 is fixedly installed with positioning seat 15, positioning seat 15 is provided with positioning mechanism 16 in;

[0026] The protection mechanism 11 comprises a sliding groove 12 and a protection cover 14, the sliding groove 12 is symmetrically arranged on the side wall of the two mounting plates 10, the spherical sliding block 13 is slidably connected in the sliding groove 12, and the protection cover 14, which is open at the top and bottom, is fixedly connected to the side wall of the spherical sliding block 13. The electric sliding table 4 can drive the mechanical arm 5 and the welding gun 6 to slide along the guide rail 3, so that the welding gun 6 can weld the pipe 24, the mechanical arm 5 can also be angle-adjusted, the welding gun 6 can be moved to weld the pipe 24 of different specifications, the mounting seat 7 is symmetrically arranged, the three groups of first mounting frames 8 are symmetrically arranged with each other, the two mounting plates 10 are connected to form two whole bodies, and the whole bodies can rotate around the top of the mounting seat 7, the positioning mechanism 16 can position the pipe 24, and the protection mechanism 11 can protect the head of the welding gun 6, the protection mechanism 11 is connected with the mounting plate 10, when the pipe 24 is placed on the top of the positioning seat 15, the two mounting plates 10 are rotated to approach each other and finally approach the head of the welding gun 6, at this time, the two protection covers 14 are combined into one, and when the electric sliding table 4 drives the welding gun 6 to move, the combined protection cover 14 moves along with the welding gun 6, so that the sparks and flying chips generated during the welding operation can be blocked below the protection cover 14 at any time, the sparks can prevent the welding gun 6 and other equipment from being damaged, and the number of equipment maintenance times is reduced.

[0027] As a technical optimization scheme of the utility model, the mounting plate 10 is uniformly provided with the threaded bolt fastener 101, and the bottom end of each threaded bolt fastener 101 is fixedly connected with the first positioning block. The threaded bolt fastener 101 is manually operated, after the operation disc 23 is operated to make the two mounting plates 10 approach each other and the positioning mechanism 16 positions the bottom of the pipe 24, the threaded bolt fastener 101 is used to fix and position the top of the pipe 24, so that the pipe 24 to be welded is fully fixed and will not be offset, and the welding quality is not affected.

[0028] As a technical optimization scheme of the utility model, the positioning mechanism 16 includes positioning slide rod 18 and second positioning block 19, and the positioning seat 15 is provided with three sets of positioning grooves 17 which are symmetrical to each other on both sides, the three sets of positioning grooves 17 correspond to the three sets of first mounting frames 8 in position, the positioning slide rod 18 is slidably connected in the positioning groove 17, and the second positioning block 19 is rotatably connected to the top end of the positioning slide rod 18. The positioning mechanism 16 is controlled through the rotation of the first mounting frame 8 and the pulling of the steel wire rope 20, when preparing to weld, the first mounting frame 8 is rotated to make the two mounting plates 10 approach each other while the bottom of the first mounting frame 8 is away from each other, at this time, the bottom of the first mounting frame 8 can pull the steel wire rope 20 to drive the positioning slide rod 18 to rise along the positioning groove 17 until the second positioning block 19 abuts against the bottom of the pipe fitting 24, at this time, the action is stopped, and the position of the first mounting frame 8 can be locked through the self-locking effect of the bidirectional screw rod 22, so that the positioning mechanism 16 can effectively fix the pipe fitting 24, when the welding is finished, the first mounting frame 8 is reversed, the two mounting plates 10 are away from each other, the bottom of the first mounting frame 8 is close to each other, at this time, the steel wire rope 20 loses the force, the positioning slide rod 18 is automatically lowered under the action of gravity, and the fixing effect on the top and bottom of the pipe fitting 24 can be released.

[0029] As a technical optimization scheme of the utility model, the top of the positioning slide rod 18 is fixedly connected with the steel wire rope 20, the steel wire rope 20 penetrates out of the top of the positioning groove 17, and the bottom of each first mounting frame 8 is fixedly connected with the tail end of each steel wire rope 20. The steel wire rope 20 is taut under stress, loses the pulling force on the positioning slide rod 18 when losing the force, and can conveniently control the rising and falling of the positioning slide rod 18.

[0030] As a technical optimization scheme of the utility model, the mounting seat 7 on one end of the mounting plate 10 is fixedly provided with a set of mounting seats two which are symmetrical to each other on one side, the mounting seat two is the same in structure as the mounting seat 7 and is parallel in position, the second mounting frame 9 is rotatably connected to the top of the opposite surface of the mounting seat two and the mounting seat 7, and the top end of the second mounting frame 9 is fixedly connected with the bottom end of the mounting plate 10. The mounting seat two and the second mounting frame 9 are convenient for the installation of the rotating block 21 and the rotation of the bidirectional screw rod 22, and the second mounting frame 9 is the same in structure as the first mounting frame 8 and is linked with the mounting plate 10.

[0031] As a technical optimization scheme of the utility model, the opposite surface of the first mounting frame 8 and the second mounting frame 9 is rotatably connected with the rotating block 21, the two rotating blocks 21 are threadedly connected with the bidirectional screw rod 22, and one end of the bidirectional screw rod 22 is fixedly connected with the rotating disc 23. Since the rotating block 21 is rotatably connected with the first mounting frame 8 and the second mounting frame 9 and is threadedly connected with the bidirectional screw rod 22, the two rotating blocks 21 can approach or be away from each other under the driving of the bidirectional screw rod 22 which is operated to rotate the rotating disc 23, and the two rotating blocks 21 always remain in a horizontal state.

[0032] As a technical optimization scheme of the utility model, the top of the positioning seat 15 is arc-shaped structure, and the two half pipe fittings 24 to be welded are placed on the top of the positioning seat 15. The positioning seat 15 is used for placing the pipe fitting 24. When welding pipe fittings 24 of different specifications, the mutual structure of the top of the positioning seat 15 cannot guarantee the same diameter as the pipe fitting 24, so the pipe fitting 24 cannot be completely stabilized. At this time, the fixing of the pipe fitting 24 can be realized through the cooperation of the positioning mechanism 16, the mounting plate 10 and the bolt fastener 101.

[0033] In use, the operator manually rotates the turntable 23, drives the bidirectional screw rod 22 to rotate, makes the two rotating blocks 21 approach each other, makes the bottom of the first mounting frame 8 on both sides approach each other and the top thereof away from each other, makes the two mounting plates 10 away from each other and present an unfolded state. At this time, the two half pipe fittings 24 to be welded are placed on the top of the positioning seat 15. After proper placement, the turntable 23 is reversed, the bidirectional screw rod 22 is driven to rotate, the two rotating blocks 21 are made to move away from each other, the bottom of the first mounting frame 8 on both sides is made to move away from each other and the top thereof approach each other, the two mounting plates 10 are made to approach each other and present a folded state. At this time, the bottom of the first mounting frame 8 can pull the steel wire rope 20 and drive the positioning slide rod 18 to rise along the positioning groove 17 until the second positioning block 19 abuts against the bottom of the pipe fitting 24. Stopping rotating the turntable 23 can lock the position of the first mounting frame 8 through the self-locking effect of the bidirectional screw rod 22. Then the bolt fastener 101 is used to fix and position the top of the pipe fitting 24. The positioning mechanism 16 and the bolt fastener 101 cooperate to effectively fix the pipe fitting 24. In the process of the two mounting plates 10 approaching each other and presenting a folded state, the two protective covers 14 respectively approach the gun head of the welding gun 6. Finally, the two protective covers 14 are combined into one. The welding gun 6 and the electric sliding table 4 can be started to weld the pipe fitting 24. After welding, the turntable 23 is rotated to make the two mounting plates 10 move away from each other, the bottom of the first mounting frame 8 approach each other. At this time, the steel wire rope 20 loses force, the positioning slide rod 18 is automatically lowered under the action of gravity, and the bolt fastener 101 is separated from the top of the pipe fitting 24. The fixing effect on the top and bottom of the pipe fitting 24 can be released.

[0034] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A non-profiled structural component welding robot comprising a gantry (1) and a welding gun (6), characterized in that: The both sides of the top of the rack (1) are symmetrically provided with fixed seats (2), the two fixed seats (2) are fixedly connected with guide rails (3), the guide rails (3) are slidably connected with electric sliding tables (4), the top of the electric sliding table (4) is provided with a rotatable mechanical arm (5), the end of the mechanical arm (5) is fixedly provided with a welding gun (6), the top of the rack (1) on one side of the guide rail (3) is fixedly provided with three groups of uniformly distributed mounting seats (7), each group of mounting seats (7) is symmetrically arranged, and the top of each group of mounting seats (7) is rotatably connected with symmetrically arranged first mounting racks (8), the top of every adjacent three first mounting racks (8) is fixedly provided with a mounting plate (10), the side wall of the mounting plate (10) is provided with a protection mechanism (11), and the top of the rack (1) between the three groups of mounting seats (7) is fixedly provided with a positioning seat (15), and the positioning seat (15) is provided with a positioning mechanism (16). The protection mechanism (11) comprises a sliding groove (12) and a protective cover (14), the opposite side walls of the two mounting plates (10) are symmetrically provided with the sliding grooves (12), the sliding grooves (12) are slidably connected with spherical sliding blocks (13), and the side wall of the spherical sliding block (13) is fixedly connected with the protective cover (14) which is open at the top and the bottom.

2. The non- indexed structural component welding robot of claim 1, wherein: The mounting plate (10) is uniformly provided with screw fasteners (101), and the bottom of each screw fastener (101) is fixedly connected with a first positioning block.

3. The non-geometrically defined structural weld robot of claim 1, wherein: The positioning mechanism (16) comprises a positioning sliding rod (18) and a second positioning block (19), the two sides of the positioning seat (15) are provided with three groups of symmetrically arranged positioning grooves (17), the three groups of positioning grooves (17) correspond to the positions of the three groups of first mounting racks (8), the positioning grooves (17) are slidably connected with the positioning sliding rods (18), and the top of the positioning sliding rod (18) is rotatably connected with the second positioning block (19).

4. The non- indexed structural member welding robot of claim 3, wherein: The top of the positioning sliding rod (18) is fixedly connected with a steel wire rope (20), the steel wire rope (20) penetrates out of the top of the positioning groove (17), and the end of each steel wire rope (20) is fixedly connected with the bottom of each first mounting rack (8).

5. The non-geometrically defined structural component welding robot of claim 1, wherein: The mounting seat (7) below one end of the mounting plate (10) is fixedly provided with a group of symmetrically arranged mounting seats two, the mounting seat two is the same as the mounting seat (7) in structure and is parallel to the mounting seat (7), the top of the opposite surface of the mounting seat two and the mounting seat (7) is rotatably connected with a second mounting rack (9), and the top of the second mounting rack (9) is fixedly connected with the bottom of the mounting plate (10).

6. The non-geometrically structured part welding robot of claim 5, wherein: The opposite bottom of the first mounting rack (8) and the second mounting rack (9) is rotatably connected with a rotating block (21), the two rotating blocks (21) are threadedly connected with a bidirectional screw rod (22), and one end of the bidirectional screw rod (22) is fixedly connected with a rotating disc (23).

7. The non-geometrically structured part welding robot of claim 1, wherein: The top of the positioning seat (15) is of an arc structure, and the top of the positioning seat (15) is provided with two half pipe fittings (24) to be welded.

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