Gas tank center joint welding device

Abstract

The utility model relates to a gas tank center seam welding device which comprises a welding table, clamp cabinets arranged on the two sides of the welding table, a portal frame arranged behind the welding table and a control cabinet arranged on the clamp cabinet on one side. A clamp pulley used for pushing and clamping a gas tank component is arranged in the clamp cabinet; the clamp tackle is arranged on the rail in a sliding fit mode, a main air cylinder used for pushing and pulling the clamp tackle is arranged in the clamp cabinet, the side wall of the clamp tackle is rotationally connected with a rotary disc through a bearing, an annular tank frame is installed on the rotary disc, and a servo motor used for driving the rotary disc to rotate is arranged in a carriage of the clamp tackle. According to the welding device for the center seam of the gas tank, a pre-spot welding procedure is not needed, the tank body can be firmly and accurately fixed, the posture of the tank body can be kept stable on the premise that the tank body is driven to rotate in the welding process, and the continuity of the machining process is improved due to the fact that the discharging assembly is additionally arranged.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas tank production and manufacturing equipment technical field, concretely relates to a gas tank middle seam welding device. BACKGROUND

[0002] The production and manufacturing process of two-section gas tank is to manufacture two-end tank body first, punch valve hole in one section, and then weld two-section tank body into one. The tank body fixing mode of existing welding machine generally adopts two-side clamping plate clamping or bottom support fixing. The former is prone to tank body misplacement during clamping process, which leads to uneven weld. In addition, preliminary connection needs to be completed by spot welding before feeding, which increases processing procedure. The fixing mode of the latter needs ring welding due to the immobility of tank body, which leads to complex welding gun driving structure, troublesome gas supply pipeline arrangement, high requirement, and equipment cost increase. SUMMARY

[0003] The utility model solves the technical problem that the existing welding machine for two-section gas tank middle seam welding has unstable movement state clamping, complex equipment, and high cost. The utility model provides a gas tank middle seam welding device, which does not need pre-spot welding procedure, can firmly and accurately fix the tank body, can keep the tank body posture stable under the premise of driving the tank body to rotate during welding, and additionally adds a discharging assembly to improve the continuity of the processing procedure.

[0004] The gas tank middle seam welding device comprises a welding table, a clamp cabinet arranged on both sides of the welding table, a gantry arranged at the back of the welding table, and a control cabinet arranged on one side of the clamp cabinet. The welding table is provided with rails on both sides. The clamp cabinet is provided with a clamp trolley for pushing and clamping a gas tank component. The clamp trolley is slidably arranged on the rails. The clamp cabinet is provided with a main cylinder for pushing and pulling the clamp trolley. The side wall of the clamp trolley is rotatably connected with a turntable through a bearing. An annular tank frame is arranged on the turntable. A servo motor is arranged in the clamp trolley compartment for driving the turntable to rotate.

[0005] Further, the turntable is arranged on the inner ring of the bearing, the outer ring of the bearing is fixed on the hole of the side wall of the clamp trolley, a push-up cylinder is arranged in the clamp trolley compartment, and the cylinder rod of the push-up cylinder is connected with the inner side of the tank frame through the turntable.

[0006] Optimally, the welding table is provided with a lifting mechanism in the center, and a pair of discharging guide frames are arranged on both sides of the lifting mechanism.

[0007] Further, the lifting mechanism comprises a pair of support cylinders arranged in the welding table. The cylinder rods of the two support cylinders extend out of the welding table, and a support plate is fixedly arranged at the end of the two cylinder rods.

[0008] Further, the top of the discharging guide frame forms a self-inclined slope surface from front to back.

[0009] Specifically, the gantry is provided with a welding gun frame, and a welding cylinder is installed on the welding gun frame, a cylinder rod of the welding cylinder penetrates through the welding gun frame downward and is connected with a welding gun, and infrared leveling light strips are arranged at both sides of the welding gun at lower ends of the welding gun frame.

[0010] The utility model discloses a seam welding device for gas tank, overcome the welding machine movement state clamping instability, the equipment complex cost high's defect of existing for two -section type gas tank seam welding, it need not pre -spot welding process, and can firmly, accurately fixed to the tank body, and can keep the tank body posture stable under the premise of driving the tank body rotation in the welding process, additionally add blanking assembly, improve the continuity of processing process. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model discloses a seam welding device for gas tank, overcome the welding machine movement state clamping instability, the equipment complex cost high's defect of existing for two -section type gas tank seam welding, it need not pre -spot welding process, and can firmly, accurately fixed to the tank body, and can keep the tank body posture stable under the premise of driving the tank body rotation in the welding process, additionally add blanking assembly, improve the continuity of processing process.

[0012] Figure 1 It is the plane structure schematic diagram (the box internal part of dotted line structure) of this gas tank seam welding device;

[0013] Figure 2 It is Figure 1 The three -dimensional structure diagram of 3;

[0014] Figure 3 It is the use state reference diagram of this gas tank seam welding device.

[0015] In the drawing:

[0016] 0-gas tank;

[0017] 1-welding platform;11-rail, 12-lifting mechanism, 13-blanking guide frame, 121-bearing cylinder, 122-plate;

[0018] 2-clamp cabinet;21-main cylinder;

[0019] 3-gantry;31-welding gun frame, 32-welding cylinder, 33-welding gun, 34-infrared leveling light strip;

[0020] 4-control cabinet;

[0021] 5-clamp trolley;51-rotary table, 52-tank frame, 53-servo motor, 54-push cylinder. DETAILED DESCRIPTION

[0022] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] The technical solution of the present invention is further described below with specific embodiments, but the protection scope of the present invention is not limited to the following embodiments.

[0025] Implementation method 1: Figure 1 、 2 As shown, the gas tank center seam welding device includes a welding table 1, a fixture cabinet 2 arranged on both sides of the welding table 1, a gantry 3 arranged behind the welding table 1, and a control cabinet 4 arranged on one side of the fixture cabinet 2, wherein rails 11 are provided on both sides of the welding table 1, and the fixture cabinet 2 is provided with a fixture pulley 5 for pushing and clamping the gas tank 0 components; the fixture pulley 5 is slidably mounted on the rail 11, and a main cylinder 21 for pushing and pulling the fixture pulley 5 is provided in the fixture cabinet 2, and the side wall of the fixture pulley 5 is rotatably connected to a turntable 51 through a bearing, and an annular tank frame 52 is installed on the turntable 51, and a servo motor 53 for driving the turntable 51 to rotate is provided in the carriage of the fixture pulley 5.

[0026] Implementation method 2: Figure 2 As shown, the turntable 51 of this gas tank center seam welding device is mounted on the inner race of the bearing, the outer race of which is fixed to the opening in the side wall of the clamp pulley 5. A push-out cylinder 54 is mounted inside the carriage of the clamp pulley 5. The rod of the push-out cylinder 54 passes through the turntable 51 and connects to the inner side of the tank frame 52. The remaining structure and components are as described in Embodiment 1 and will not be repeated here.

[0027] Implementation method 3: Figure 2As shown, the central seam welding device of the gas tank is provided with lifting mechanism 12 in the center of the welding table 1, and a pair of unloading guide frame 13 is arranged on both sides of the lifting mechanism 12. The lifting mechanism 12 comprises a pair of supporting cylinders 121 arranged inside the welding table 1, the cylinder rods of the two supporting cylinders 121 extend out of the welding table 1, and a supporting plate 122 is fixedly installed at the end of the two cylinder rods. The top of the unloading guide frame 13 forms a front-to-back inclined slope. The remaining structures and components are as described in embodiment 1 and will not be described again.

[0028] Embodiment 4: as Figure 2 As shown, the gantry 3 of the present gas tank central seam welding device is provided with a welding gun holder 31, and a welding cylinder 32 is installed on the welding gun holder 31. The cylinder rod of the welding cylinder 32 penetrates through the welding gun holder 31 downward and is connected with a welding gun 33. The lower end of the welding gun holder 31 is provided with infrared leveling lamp strips 34 on both sides of the welding gun 33. The remaining structures and components are as described in embodiment 1 and will not be described again.

[0029] In operation: as Figure 3 As shown, after the two parts of the tank body are loaded above the welding table, the main cylinder pushes the clamp trolley to move inward, so that the two parts of the gas tank are included in the tank frame. After the axis is leveled by the infrared leveling lamp shining downward on the lamp line of the two parts of the gas tank, the push-up cylinder pushes the tank frame inward to clamp the gas tank. After the welding gun sprays and welds, the servo motor drives the rotating disc to rotate, so that the weld runs a circle, and the welding is completed. The push-up cylinder recovers and releases the gas tank, the lifting cylinder goes up to make the supporting plate drag under the gas tank, the main cylinder pulls the clamp trolley back to the furniture cabinet, the lifting cylinder goes down to recover, and the welded gas tank rolls along the unloading guide frame to the inside of the welding table and falls to the back of the welding table.

[0030] The central seam welding device of the gas tank overcomes the defects of unstable clamping of the existing welding machine for two-section gas tank central seam welding, complex equipment and high cost. It does not need pre-point welding process, can firmly and accurately fix the tank body, can keep the tank body stable in the premise of driving the tank body to rotate during welding, and additionally adds an unloading assembly to improve the continuity of the processing process.

[0031] The above description shows the main features, basic principles and advantages of the present application. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments or examples, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, the above embodiments or examples should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0032] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A gas tank center seam welding device, characterized by: The invention comprises a welding table (1), fixture cabinets (2) arranged on both sides of the welding table (1), a gantry (3) arranged behind the welding table (1), and a control cabinet (4) arranged on one side of the fixture cabinet (2), wherein: Rails (11) are provided on both sides of the welding table (1); a clamp pulley (5) for pushing and clamping a gas tank (0) component is provided in the clamp cabinet (2); the clamp pulley (5) is slidably mounted on the rails (11); a main cylinder (21) for pushing and pulling the clamp pulley (5) is provided in the clamp cabinet (2); a turntable (51) is rotatably connected to the side wall of the clamp pulley (5) through a bearing, and an annular tank frame (52) is installed on the turntable (51); a servo motor (53) for driving the turntable (51) to rotate is provided in the carriage of the clamp pulley (5).

2. The gas tank center seam welding device according to claim 1, characterized in that: The turntable (51) is mounted on the inner ring of the bearing, and the outer ring of the bearing is fixed on the opening of the side wall of the clamp pulley (5). The turntable (51) is equipped with a push-up cylinder (54) in the carriage of the clamp pulley (5), and the cylinder rod of the push-up cylinder (54) passes through the turntable (51) and is connected to the inner side of the tank frame (52).

3. The gas tank center seam welding device according to claim 2, characterized in that: A lifting mechanism (12) is provided in the center of the welding platform (1), and a pair of blanking guide frames (13) are provided on both sides of the lifting mechanism (12).

4. The gas tank center seam welding device according to claim 3, characterized in that: The lifting mechanism (12) comprises a pair of supporting cylinders (121) arranged inside the welding table (1), the cylinder rods of the two supporting cylinders (121) extend out of the welding table (1), and a support plate (122) is fixedly mounted on the ends of the two cylinder rods.

5. The gas tank center seam welding device according to claim 4, characterized in that: The top of the blanking guide frame (13) forms an inclined slope from front to back.

6. The gas tank center seam welding device according to claim 5, characterized in that: A welding gun rack (31) is provided on the gantry (3), and a welding cylinder (32) is installed on the welding gun rack (31). The cylinder rod of the welding cylinder (32) passes through the welding gun rack (31) downward and is connected to the welding gun (33). The lower end of the welding gun rack (31) is provided with infrared leveling light strips (34) on both sides of the welding gun (33).

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