Steel casting assembly line machining workshop argon arc welding device

Abstract

The utility model discloses a steel casting assembly line machining workshop argon arc welding repair device which comprises a wire and pipe bridge frame, the two ends of the wire and pipe bridge frame are fixedly installed on the inner side of a workshop wall body of the workshop, a welding loop is connected to the wire and pipe bridge frame of the workshop in a hung mode, and a machining tool for clamping steel casting parts is placed in the workshop. A waste gas suction port and a telescopic pipe are arranged above the processing machine tool, one end of the wire and pipe bridge frame is connected with a waste gas absorption device, and the welding loop is connected with an argon steel cylinder; any machine tool in a production line workshop is matched with a welding loop to carry out welding repair along with the machine tool, a waste gas suction port and a telescopic pipe are arranged above each machine tool, waste gas generated by argon arc welding is sucked into a waste gas suction device through the waste gas suction port and the telescopic pipe, and solid and environment-friendly argon arc welding repair welding is achieved. And meanwhile, the machining precision of the parts can be guaranteed through repair welding of the machine tool.

Description

Technical Field

[0001] The utility model relates to an argon arc welding repair device for a steel casting assembly line machining workshop, and relates to the field of steel casting machining. Background Art

[0002] Steel castings are a type of cast alloy primarily composed of iron. They are produced by pouring molten steel into a mold and then cooling and solidifying it to create the desired shape and size. Due to their high strength, toughness, and ability to create complex shapes, steel castings are widely used in various fields, including petroleum machinery, mining equipment, shipbuilding, and construction. Pump and valve housings are particularly well-suited for their complex hollow cross-sections and pressure-bearing properties.

[0003] Due to the molding process, steel castings inevitably develop various casting defects after pouring, such as shrinkage cavities, porosity, cold shuts, pores, and sand holes. Major defects such as shrinkage cavities, porosity, and cold shuts cannot be repaired and are therefore scrapped. Minor defects such as pores and sand holes, however, pose little threat to structural strength and are not visible in the roughcast, but become apparent after rough machining. These minor defects, if found on critical surfaces with high requirements, such as those for sealing, must be repaired by welding. Repair welding is generally performed before finishing, when the part is clamped on the machine. Removing it for repair welding would introduce additional positioning errors due to secondary clamping, affecting part accuracy.

[0004] When repair welding, argon arc welding is generally used. The arc combustion of argon arc welding is stable, the heat is concentrated, the arc column temperature is high, the welding production efficiency is high, the heat-affected zone is narrow, and the welded parts have little stress, deformation, and crack tendency. At the same time, argon arc welding is not restricted by the position of the weldment and can be used for all-position welding. No post-weld heat treatment is required after repair welding, and semi-finishing or finishing can be carried out directly after local grinding.

[0005] Currently, my country uses bottled argon for welding, with a filling pressure of 15 MPa at room temperature. The hazards of argon use include: 1. Improper use of the cylinder can cause the container to rupture or explode; 2. Argon leaks: When the argon content in the environment increases, it displaces oxygen. When the argon content exceeds 50%, the human body will use argon as oxygen, causing a similar asphyxiation effect; 3. Argon arc welding produces waste fumes, which pollute the environment. Utility Model Content

[0006] The utility model provides an argon arc welding repair device for a steel casting assembly line machining workshop, which is used to overcome the defect of the prior art that the argon arc welding has potential safety hazards during use.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] The utility model discloses an argon arc welding repair device for a steel casting assembly line machining workshop, comprising a wire and pipe bridge frame, both ends of the wire and pipe bridge frame being fixedly mounted on the inner side of a workshop wall of the workshop, a welding circuit being hung on the wire and pipe bridge frame of the workshop, a processing machine tool for clamping steel casting parts being placed in the workshop, an exhaust gas suction port and a telescopic pipe being provided above the processing machine tool, one end of the wire and pipe bridge frame being connected to an exhaust gas absorption device, and the welding circuit being connected to an argon gas cylinder.

[0009] Furthermore, the welding circuit includes an argon arc welding pipeline and an argon arc welding gun connected to one end of the pipeline.

[0010] Furthermore, the arc welding gun and the argon arc welding pipeline are hung on the slideway of the wire and pipe bridge in the workshop through a movable pulley.

[0011] Furthermore, the other end of the argon arc welding pipeline is connected to an argon gas cylinder through a pipeline valve, and the argon gas cylinder is located outside the workshop wall.

[0012] Furthermore, an air suction channel is provided inside the wire and pipe bridge, which is connected to the exhaust gas absorption device outside the workshop wall.

[0013] The beneficial effects achieved by the utility model are as follows: any processing machine tool in the production line workshop is matched with a welding circuit, and welding repair is carried out along with the machine tool. An exhaust gas suction port and a telescopic pipe are arranged above each processing machine tool. The exhaust gas generated by argon arc welding is sucked into the exhaust gas absorption device through the exhaust gas suction port and the telescopic pipe, thereby realizing argon arc welding repair that is both practical and environmentally friendly. At the same time, the welding repair of the machine tool can also ensure the processing accuracy of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] In the figure: 1. Argon gas cylinder; 2. Workshop wall; 3. Wire and pipe bridge; 4. Moving pulley; 5. Argon arc welding pipeline; 6. Exhaust gas suction port and telescopic tube; 7. Argon arc welding gun; 8. Processing machine tool; 9. Exhaust gas absorption device. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0018] Example 1

[0019] like Figure 1 As shown, an argon arc welding repair device for a steel casting assembly line machining workshop includes a wire and pipe bridge 3, both ends of which are fixedly installed on the inner side of a workshop wall 2 of the workshop, and a welding circuit is hung on the wire and pipe bridge 3 of the workshop. A processing machine tool 8 for clamping steel casting parts is placed in the workshop, and an exhaust gas suction port and a telescopic pipe 6 are provided above the processing machine tool 8.

[0020] The welding circuit includes an argon arc welding pipeline 5 and an argon arc welding gun 7 connected to one end of the pipeline.

[0021] The arc welding gun 7 and the argon arc welding pipeline 5 are hung on the slideway of the line and pipe bridge 3 in the workshop through a group of movable pulleys 4.

[0022] The other end of the argon arc welding pipeline 5 is connected to an argon gas cylinder 1 through a pipeline valve. The argon gas cylinder 1 is located outside the workshop wall 2.

[0023] An air intake channel is provided inside the wire and pipe bridge 3 , which is connected to the exhaust gas absorption device 9 outside the workshop wall 2 .

[0024] Working Principle: The argon arc welding gun 7 and the argon arc welding pipeline 5 are hung on the slideway of the line and pipe bridge 3 in the workshop through a set of movable pulleys 4. They are matched with any processing machine tool 8 in the production line workshop for welding repair. The argon gas cylinder 1 is separately arranged outside the workshop wall 2 and connected to the argon arc welding pipeline 5 through a pipeline valve. A high-temperature, fire-resistant and retractable exhaust gas suction port and telescopic pipe 6 are arranged above each processing machine tool 8 in the production line. The suction channel is arranged in the line and pipe bridge 3 and connected to the exhaust gas absorption device 9 outside the workshop. The exhaust gas generated by argon arc welding is sucked into the exhaust gas absorption device 9 by the exhaust gas suction port and telescopic pipe 6. This can achieve argon arc welding repair that is both safe and environmentally friendly. At the same time, the welding repair of the machine tool can also ensure the processing accuracy of the parts.

[0025] It should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that they may modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, improvements, and the like that fall within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention. The terms used in the description of this application are intended only to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to scale. Technologies, methods, and devices known to persons skilled in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely illustrative and not limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0026] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0027] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

Claims

1. An argon arc welding repair device for steel casting production line machining workshop, characterized in that: It includes a wire and pipe bridge, both ends of which are fixedly installed on the inner side of the workshop wall. The welding circuit is hung on the wire and pipe bridge in the workshop. A processing machine for clamping cast steel parts is placed in the workshop. An exhaust gas suction port and a telescopic pipe are provided above the processing machine. One end of the wire and pipe bridge is connected to a waste gas absorption device, and the welding circuit is connected to an argon gas cylinder.

2. The argon arc welding repair device for steel casting assembly line machining workshop according to claim 1 is characterized in that: The welding circuit comprises an argon arc welding pipeline and an argon arc welding gun connected to one end of the pipeline.

3. The argon arc welding repair device for steel casting assembly line machining workshop according to claim 2, characterized in that: The arc welding gun and the argon arc welding pipeline are hung on the slideway of the wire and pipe bridge in the workshop through a movable pulley.

4. The argon arc welding repair device for steel casting assembly line machining workshop according to claim 2, characterized in that: The other end of the argon arc welding pipeline is connected to an argon gas cylinder through a pipeline valve, and the argon gas cylinder is located outside the workshop wall.

5. The argon arc welding repair device for steel casting assembly line machining workshop according to claim 1, characterized in that: An air suction channel is provided inside the wire and pipe bridge, which is connected to the exhaust gas absorption device outside the workshop wall.

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