Vertical straight seam welding machine

Abstract

The utility model relates to a vertical straight seam welding machine. The vertical straight seam welding machine comprises a base, a fixing frame which moves in the horizontal direction is slidably installed on the base, a horizontal driving mechanism which drives the fixing frame to move is arranged on the base, a fixing base which moves in the vertical direction is slidably installed on the fixing frame, and a vertical driving mechanism which drives the fixing base to move is arranged on the fixing frame. A first connecting arm with the rotating axis extending in the horizontal direction is rotationally installed on the fixing base, a second connecting arm with the rotating axis extending in the vertical direction is rotationally installed on the first connecting arm, and a third connecting arm with the rotating axis extending in the vertical direction is rotationally installed at the end of the second connecting arm. A fixing rod with the rotating axis extending in the horizontal direction is rotationally installed at the end of the third connecting arm, and a welding gun is arranged at the end of the fixing rod. Compared with the prior art, the vertical straight seam welding machine has the advantages that the welding gun can be accurately aligned with a welding seam of a welding piece, and the welding efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of welding equipment technology, specifically relating to a vertical straight seam welding machine. Background Technology

[0002] A straight seam welding machine is an automated welding device that automatically completes the straight seam welding of workpieces through automation and mechanization. Also called a straight seam automatic welding machine or longitudinal seam automatic welding machine, it is a type of automatic welding machine. It can largely replace manual labor, significantly improving production efficiency and welding quality, reducing labor costs, and improving the working environment for welders. Applications include corner seam welding of large transformer casings, straight seam welding of large cylindrical bodies, straight seam welding of solar water heater cylinders, straight seam welding of steel strip joints on production lines, and welding of H-beams, all of which utilize straight seam welding machines extensively.

[0003] When welding with existing straight seam welding machines, the workpiece to be welded is placed directly on the welding position, and then fixed by fixing components such as a fixing plate. The welding gun is then used to weld the workpiece. However, during welding, the weld seam between the welding gun and the workpiece cannot be precisely aligned, requiring manual adjustment of the workpiece's position, which reduces welding efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a vertical straight seam welding machine.

[0005] The technical solution of this utility model for a vertical straight seam welding machine is as follows:

[0006] A vertical straight seam welding machine includes a base, on which a fixed frame that moves horizontally is slidably mounted. A horizontal drive mechanism for driving the fixed frame is provided on the base. A fixed seat that moves vertically is slidably mounted on the fixed frame. A vertical drive mechanism for driving the fixed seat is provided on the fixed frame. A first connecting arm with its rotation axis extending horizontally is rotatably mounted on the fixed seat. A second connecting arm with its rotation axis extending vertically is rotatably mounted on the first connecting arm. A third connecting arm with its rotation axis extending vertically is rotatably mounted at the end of the second connecting arm. A fixed rod with its rotation axis extending horizontally is rotatably mounted at the end of the third connecting arm. A welding torch is provided at the end of the fixed rod.

[0007] Furthermore, the base is provided with two spaced first slide rails, and the lower side of the fixed frame is provided with two first sliders that are respectively matched with the first slide rails. The horizontal drive mechanism includes a first drive motor and a first reducer. The first reducer is fixedly connected to the fixed frame, and the first drive motor is fixedly connected to the first reducer. The base is provided with a rack that moves in the horizontal direction, and the output shaft end of the first reducer is fixedly connected with a gear that matches the rack.

[0008] Further, the fixed frame is provided with two second slide rails arranged at intervals, the fixed seat is provided with two second slide blocks matched with the second slide rails respectively, the vertical driving mechanism comprises a second driving motor and a second speed reducer, the second speed reducer is fixedly connected to the upper end of the fixed frame, the second driving motor is fixedly connected to the second speed reducer, a screw rod extending in the vertical direction is rotatably installed in the fixed frame, the output shaft of the second speed reducer is fixedly connected with the screw rod, and the fixed seat is provided with a fixed block matched with the screw rod.

[0009] Further, the fixed seat is fixedly connected with a cylindrical block, a disc is rotatably installed on the cylindrical block, the first connecting arm is fixedly connected to the disc, a third driving motor is fixedly connected to the disc, and the output shaft end of the third driving motor is fixedly connected with the cylindrical block.

[0010] Further, a fourth driving motor is fixedly connected to the first connecting arm, the output shaft of the fourth driving motor is fixedly connected with the second connecting arm, a fifth driving motor is fixedly connected to the third connecting arm, the output shaft of the fifth driving motor is fixedly connected with the second connecting arm, a sixth driving motor is fixedly connected to the end of the third connecting arm, and the output shaft end of the sixth driving motor is fixedly connected with the fixed rod.

[0011] Further, the fixed rod is in an L shape, the horizontal part end of the fixed rod is fixedly connected with the output shaft of the sixth driving motor, and the welding gun is fixedly connected to the end of the vertical part of the fixed rod.

[0012] The vertical straight seam welding machine has the advantages that, compared with the prior art,

[0013] When the vertical straight seam welding machine is used, the horizontal driving mechanism can drive the fixed frame to move in the horizontal direction, the vertical driving mechanism can drive the fixed seat to move in the vertical direction, the position of the welding gun in the horizontal and vertical directions is adjusted, the third driving motor, the fourth driving motor and the fifth driving motor can drive the welding gun to move, the position of the welding gun is accurately adjusted, and the straight seams at narrow positions and multiple positions can be welded. Compared with the prior art, the vertical straight seam welding machine can accurately align the welding seam of the welding gun and the welding piece, and the welding efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structural schematic view of the vertical straight seam welding machine of the utility model;

[0015] Fig. 2 is a structural schematic view of the base in the vertical straight seam welding machine of the utility model;

[0016] Fig. 3It is the structure schematic view of the fixed frame in the vertical straight seam welding machine of the utility model;

[0017] Fig. 4 It is the structure schematic view of the fixed seat in the vertical straight seam welding machine of the utility model;

[0018] The figure mark: 1, base; 2, fixed frame; 3, fixed seat; 4, first sliding rail; 5, first drive motor; 6, first speed reducer; 7, gear; 8, rack; 9, screw; 10, second speed reducer; 11, second drive motor; 12, second sliding block; 13, fixed block; 14, second sliding rail; 15, cylindrical block; 16, disc; 17, third drive motor; 18, first connecting arm; 19, fourth drive motor; 20, second connecting arm; 21, fifth drive motor; 22, third connecting arm; 23, sixth drive motor; 24, fixed rod; 25, welding torch. DETAILED DESCRIPTION

[0019] The utility model will be described further in detail in combination with the drawings and specific embodiment:

[0020] The specific embodiment of the vertical straight seam welding machine of the utility model, as shown in Figs. 1 to 4 The fixed seat 3 is slidably installed on the fixed frame 2 and moves along the vertical direction, the fixed seat 3 is provided with the vertical driving mechanism for driving the fixed seat 3 to move, the first connecting arm 18 is rotatably installed on the fixed seat 3 and extends along the horizontal direction, the second connecting arm 20 is rotatably installed on the first connecting arm 18 and extends along the vertical direction, the third connecting arm 22 is rotatably installed on the second connecting arm 20 and extends along the vertical direction, the fixed rod 24 is rotatably installed on the third connecting arm 22 and extends along the horizontal direction, and the welding torch 25 is arranged on the end of the fixed rod 24.

[0021] The base 1 is provided with two first sliding rails 4 arranged at intervals, the lower side of the fixed frame 2 is provided with two first sliding blocks matched with the first sliding rails 4 respectively, the horizontal driving mechanism comprises a first drive motor 5 and a first speed reducer 6, the first speed reducer 6 is fixedly connected to the fixed frame 2, the first drive motor 5 is fixedly connected to the first speed reducer 6, the base 1 is provided with a rack 8 moving along the horizontal direction, and the output shaft end of the first speed reducer 6 is fixedly connected with a gear 7 matched with the rack 8.

[0022] The second slide rail 14 is arranged on the fixed frame 2, and the second slide block 12 is arranged on the fixed seat 3 and matched with the second slide rail 14.

[0023] The cylindrical block 15 is fixedly connected to the fixed seat 3, the disc 16 is rotatably arranged on the cylindrical block 15, the first connecting arm 18 is fixedly connected to the disc 16, the third driving motor 17 is fixedly connected to the disc 16, and the output shaft end of the third driving motor 17 is fixedly connected to the cylindrical block 15.

[0024] The fourth driving motor 19 is fixedly connected to the first connecting arm 18, the output shaft of the fourth driving motor 19 is fixedly connected to the second connecting arm 20, the fifth driving motor 21 is fixedly connected to the third connecting arm 22, the output shaft of the fifth driving motor 21 is fixedly connected to the second connecting arm 20, the sixth driving motor 23 is fixedly connected to the end of the third connecting arm 22, and the output shaft end of the sixth driving motor 23 is fixedly connected to the fixed rod 24.

[0025] When the vertical straight seam welding machine is used, the horizontal driving mechanism can drive the fixed frame 2 to move in the horizontal direction, the vertical driving mechanism can drive the fixed seat 3 to move in the vertical direction, the position of the welding gun 25 in the horizontal and vertical directions is adjusted, the third driving motor 17, the fourth driving motor 19 and the fifth driving motor 21 can drive the welding gun 25 to move, the position of the welding gun 25 is accurately adjusted, the straight seam in a narrow position and multiple positions can be welded, compared with the prior art, the vertical straight seam welding machine can accurately align the welding gun 25 with the welding seam of a welding piece, and the welding efficiency is improved.

[0026] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vertical straight seam welding machine, characterized in that, The base is provided with two first slide rails arranged at intervals, the lower side of the fixed frame is provided with two first sliding blocks matched with the first slide rails respectively, the horizontal drive mechanism comprises a first drive motor and a first speed reducer, the first speed reducer is fixedly connected to the fixed frame, the first drive motor is fixedly connected to the first speed reducer, the base is provided with a rack moving in the horizontal direction, and the output shaft end of the first speed reducer is fixedly connected with a gear matched with the rack.

2. The vertical straight seam welding machine according to claim 1, characterized in that, The fixed frame is provided with two second slide rails arranged at intervals, the fixed seat is provided with two second sliding blocks matched with the second slide rails respectively, the vertical drive mechanism comprises a second drive motor and a second speed reducer, the second speed reducer is fixedly connected to the upper end of the fixed frame, the second drive motor is fixedly connected to the second speed reducer, a lead screw extending in the vertical direction is rotatably installed in the fixed frame, the output shaft of the second speed reducer is fixedly connected with the lead screw, and the fixed seat is provided with a fixed block matched with the lead screw.

3. The vertical straight seam welding machine according to claim 2, characterized in that, The fixed seat is fixedly connected with a cylindrical block, a disc is rotatably installed on the cylindrical block, the first connecting arm is fixedly connected to the disc, a third drive motor is fixedly connected to the disc, and the output shaft end of the third drive motor is fixedly connected with the cylindrical block.

4. The vertical straight seam welding machine of claim 1, wherein, The first connecting arm is fixedly connected with a fourth drive motor, the output shaft of the fourth drive motor is fixedly connected with the second connecting arm, the third connecting arm is fixedly connected with a fifth drive motor, the output shaft of the fifth drive motor is fixedly connected with the second connecting arm, the end of the third connecting arm is fixedly connected with a sixth drive motor, and the output shaft end of the sixth drive motor is fixedly connected with the fixed rod.

5. The vertical straight seam welding machine according to claim 4, characterized in that, The fixed rod is L-shaped, the horizontal part of the fixed rod is fixedly connected with the output shaft of the sixth drive motor, and the welding gun is fixedly connected to the end of the vertical part of the fixed rod.

6. The vertical straight seam welding machine according to claim 5, characterized in that ​

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