Circular seam welding machine

Abstract

The utility model discloses a circular seam welding machine which comprises a base and a gantry bridge frame arranged on one side of the base, a fixed seat and a sliding seat capable of linearly moving on the base are arranged on the base, the fixed seat is arranged at one end of the base and is adjacent to the gantry bridge frame, the fixed seat and the sliding seat are located on the same straight line, and the gantry bridge frame is arranged on the base. A workpiece fixing mechanism is arranged on the upper surface of the fixing seat, a rotating mechanism is arranged on the sliding seat, a welding gun clamping mechanism capable of freely sliding is arranged on the gantry bridge frame, and the welding gun clamping mechanism is located above the position between the fixing seat and the sliding seat. The integral annular welding seam can be completed at a time, the welding quality is guaranteed, and the welding defects of uneven welding height, slag inclusion, air holes and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a girth welder. Background Art

[0002] Welding technology is a commonly used connection technology in the workshop. It is mainly used to sew the metal parts together. After the metal parts are butted, in order to ensure the welding quality, a weld needs to be completed at one time. Manual operation is easy to achieve for a straight weld, but when performing circumferential welding, manual welding cannot be completed at one time. Therefore, the entire weld is divided into multiple nodes to complete, resulting in welds of different sizes. Welding defects such as uneven weld height, slag inclusions, and pores are prone to occur at the nodes. In addition, each weld is not welded as a whole at one time, which can easily cause irregular thermal deformation. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a girth welder. The utility model can complete the overall girth weld at one time, thereby ensuring the welding quality and avoiding welding defects such as uneven weld height, slag inclusion, and porosity.

[0004] The purpose of the utility model is achieved through the following technical scheme: a circumferential seam welding machine, comprising a base and a gantry bridge arranged on one side of the base, the base is provided with a fixed seat and a sliding seat that can move linearly on the base, the fixed seat is provided with one end of the base and is adjacent to the gantry bridge, the fixed seat and the sliding seat are in the same straight line, a workpiece fixing mechanism is provided on the upper surface of the fixed seat, a rotating mechanism is provided on the sliding seat, and a freely slidable welding gun clamping mechanism is provided on the gantry bridge, and the welding gun clamping mechanism is located above the fixed seat and the sliding seat.

[0005] In one preferred embodiment, the workpiece fixing mechanism includes a rotating seat, a rotating shaft and a first clamp, the rotating seat is installed on the fixed seat, the rotating seat is provided with a bearing seat for installing the rotating shaft, the first clamp is installed at one end of the rotating shaft, the rotating mechanism includes a base and a rotating cylinder, the base is fixed on the sliding seat, the cylinder body of the rotating cylinder is fixedly connected to the base, and a second clamp is provided on the piston rod of the rotating cylinder.

[0006] In one preferred embodiment, the welding gun clamping mechanism includes a sliding mounting plate and a height adjustment plate, the sliding mounting plate is slidably arranged on the cross bar of the gantry bridge, a plurality of threaded fixing holes are arranged on the sliding mounting plate, the plurality of threaded fixing holes are divided into two groups, and the two groups of threaded fixing holes are symmetrically distributed on the sliding mounting plate, and the height adjustment plate is provided with through holes matching the threaded fixing holes and a fixing frame for fixing the welding gun.

[0007] In one preferred embodiment, a storage cavity is provided in the middle of the fixing seat.

[0008] The beneficial effects of the utility model are as follows: the utility model can complete the welding of the entire annular weld at one time, can ensure the integrity of the weld, avoid welding defects such as uneven weld height, slag inclusions, pores, etc., effectively reduce irregular thermal deformation, greatly improve production efficiency, ensure the consistency of the weld, and improve product stability. At the same time, through the cooperation of the fixed seat, the sliding seat and the welding gun clamping mechanism, the welding of different sizes of welded parts and the welding of different positions of welded parts can be completed, making the equipment more widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] In the figure, 1-base, 2-gantry bridge, 3-fixed seat, 4-sliding seat, 5-workpiece fixing mechanism, 51-rotating seat, 52-rotating shaft, 53-first clamp, 54-bearing seat, 6-rotating mechanism, 61-base, 62-rotating cylinder, 7-welding gun clamping mechanism, 71-sliding mounting plate, 72-height adjustment plate, 73-threaded fixing hole, 74-through hole, 75-fixed frame, 8-storage cavity. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0015] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model 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, and therefore cannot be understood as a limitation on the present utility model.

[0016] The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0017] The terms "parallel", "vertical", etc. do not mean that the components must be absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted.

[0018] The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal, vertical or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0019] In addition, the terms "roughly" and "basically" are intended to explain that the relevant content does not require absolute precision, but can have certain deviations. For example, "roughly equal" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" in actual production and operation, there are generally certain deviations. Therefore, in addition to absolute equality, "roughly equal" also includes the above-mentioned situation with certain deviations. Taking this as an example, in other cases, unless otherwise specified, the terms "roughly" and "basically" have similar meanings to the above.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1 The utility model provides a technical solution: a girth welder, comprising a base 1 and a gantry bridge 2 arranged on one side of the base 1, the base 1 is provided with a fixed seat 3 and a sliding seat 4 that can move linearly on the base 1, the fixed seat 3 is provided with one end of the base 1 and is adjacent to the gantry bridge 2, the fixed seat 3 and the sliding seat 4 are on the same straight line, a workpiece fixing mechanism 5 is provided on the upper surface of the fixed seat 3, a rotating mechanism 6 is provided on the sliding seat 4, and a freely slidable welding gun clamping mechanism 7 is provided on the gantry bridge 2, and the welding gun clamping mechanism 7 is located above the fixed seat 3 and the sliding seat 4. The utility model can complete the welding of the entire girth weld at one time, can ensure the integrity of the weld, avoid welding defects such as uneven weld height, slag inclusion, and pores, and effectively reduce irregular thermal deformation. At the same time, through the cooperation of the fixed seat 3, the sliding seat 4 and the welding gun clamping mechanism 7, the welding of different sizes of welded parts and the welding of different positions of welded parts can be completed, so that the equipment is more widely applicable.

[0022] In one preferred solution, the workpiece fixing mechanism 5 includes a rotating seat 51, a rotating shaft 52 and a first clamp 53. The rotating seat 51 is installed on the fixed seat 3. The rotating seat 51 is provided with a bearing seat 54 for installing the rotating shaft 52. The first clamp 53 is installed at one end of the rotating shaft 52. The rotating mechanism 6 includes a base 61 and a rotating cylinder 62. The base 61 is fixed on the sliding seat 4. The cylinder body of the rotating cylinder 62 is fixedly connected to the base 61. The piston rod of the rotating cylinder 62 is provided with a second clamp (not shown in the figure, and the same type as the first clamp 53 can be used). The clamp needs to use different types of clamps such as three-jaw clamps to meet the fixing requirements of the welded parts.

[0023] In one preferred embodiment, the welding gun clamping mechanism 7 includes a sliding mounting plate 71 and a height adjustment plate 72, the sliding mounting plate 71 is slidably arranged on the cross bar of the gantry bridge 2, a plurality of threaded fixing holes 73 are arranged on the sliding mounting plate 71, the plurality of threaded fixing holes 73 are divided into two groups, and the two groups of threaded fixing holes 73 are symmetrically distributed on the sliding mounting plate 71, and the height adjustment plate 72 is provided with a through hole 74 cooperating with the threaded fixing hole 73 and a fixing frame 75 for fixing the welding gun.

[0024] Preferably, a storage cavity 8 is provided in the middle of the fixing seat 3 for storing commonly used loading and unloading maintenance tools to avoid excessive clutter around the equipment, which may cause safety problems.

[0025] The sliding seat 4 and the welding gun clamping mechanism 7 can adopt the methods and driving methods commonly used in the mechanical field.

[0026] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the technology and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. Circumferential seam welding machine, characterized in that: It comprises a base and a gantry bridge arranged on one side of the base, the base is provided with a fixed seat and a sliding seat which can move linearly on the base, the fixed seat is provided with one end of the base and is adjacent to the gantry bridge, the fixed seat and the sliding seat are in the same straight line, a workpiece fixing mechanism is provided on the upper surface of the fixed seat, a rotating mechanism is provided on the sliding seat, and a welding gun clamping mechanism which can slide freely is provided on the gantry bridge, and the welding gun clamping mechanism is located above between the fixed seat and the sliding seat; The workpiece fixing mechanism includes a rotating seat, a rotating shaft and a first clamp, the rotating seat is mounted on the fixed seat, a bearing seat for mounting the rotating shaft is provided on the rotating seat, the first clamp is installed on one end of the rotating shaft, the rotating mechanism includes a base and a rotating cylinder, the base is fixed on the sliding seat, the cylinder body of the rotating cylinder is fixedly connected to the base, and a second clamp is provided on the piston rod of the rotating cylinder; The welding gun clamping mechanism includes a sliding mounting plate and a height adjustment plate. The sliding mounting plate is slidably arranged on the cross bar of the gantry bridge. A plurality of threaded fixing holes are arranged on the sliding mounting plate. The plurality of threaded fixing holes are divided into two groups, and the two groups of threaded fixing holes are symmetrically distributed on the sliding mounting plate. The height adjustment plate is provided with through holes matching the threaded fixing holes and a fixing frame for fixing the welding gun.

2. The girth welder according to claim 1, characterized in that: A storage cavity is provided in the middle of the fixing seat.

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