CN211387301U

CN211387301U - Flexible welder of variable angle

Info

Publication number: CN211387301U
Application number: CN201921520265.9U
Authority: CN
Inventors: 王鹏; 仲积峰; 周靖峰; 李明; 王忠平
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-09-01
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to a flexible welder of variable angle, including nozzle assembly, flexible return bend, handle assembly, cable assembly and the main part assembly that connects in order, the main part assembly is connected with the welding machine, the spiral tubular structure that flexible return bend is formed by the wire winding. The utility model discloses not only can change the welder angle wantonly according to operating condition, can also keep the angle after the adjustment unchangeable simultaneously, in the production and the maintenance process of welded structure product, can improve operator welding accessibility by a wide margin or can not be close the scheduling problem, reduce the construction degree of difficulty, improve welding efficiency, also be favorable to improving welding quality simultaneously.

Description

Flexible welder of variable angle

Technical Field

The utility model belongs to the technical field of welding equipment, in particular to flexible welder of variable angle.

Background

In the production of aluminum alloy rail vehicles, a consumable electrode gas shielded welding (MIG) technology is widely applied, the welding gun gooseneck arranged in the existing welding equipment has a certain fixed angle, the welding gun gooseneck is of a rigid structure, and the bending angle of the welding gun gooseneck is not adjustable, so that a lot of inconvenience is brought to the use process of the structure.

The utility model provides a flexible return bend of MIG welder in patent No. 201220235117.4, it connects through the silica gel connecting pipe that can buckle between welder's front connector and rear joint, and the silica gel connecting pipe is flexible return bend, can adjust the shape of silica gel connecting pipe according to actual operation's angle needs. Although the problem of welder angular adjustment has been solved to this scheme, because the silica gel connecting pipe only has better flexibility, does not have certain rigidity, after angular adjustment targets in place, can't keep welding angle unchangeable, still have a great deal of inconvenience in the use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides one kind and can change welder angle wantonly according to operating condition to can keep the angle unchangeable, improve the flexible welder of variable angle of welding reachability and welding quality.

In order to achieve the above purpose, the technical scheme of the utility model is that:

the utility model provides a flexible welder of variable angle, includes nozzle assembly, flexible return bend, handle assembly and the cable assembly who connects in order, the tail end and the welding machine of cable assembly are connected, the spiral tubular structure that flexible return bend formed for being twined by the wire, all adopt threaded connection between nozzle assembly, flexible return bend, handle assembly and the cable assembly, the cable assembly includes main part, cable pipe and first pipeline fixing base a plurality of trompils that are used for passing the pipeline have on the first pipeline fixing base, through first fixation nut locking fixed connection between the tail end of main part and the first pipeline fixing base, the front end and the cable pipe fixed connection of main part.

Further, the metal wire is a copper wire.

Furthermore, the metal wire is a thick copper wire with the diameter of more than 1.5 mm.

Further, a layer of rubber pipe is sleeved on the outer side of the flexible bent pipe.

Furthermore, a buffer protective sleeve is respectively sleeved at the front end and the tail end of the cable tube.

Further, the buffer protection sleeve is a corrugated pipe with an embedded spring.

Further, the handle assembly includes connector, handle and welder switch have a plurality of trompils that are used for passing the pipeline on the connector, the handle suit is in the outside of connector, the welder switch mounting is on the handle, the connector passes through second fixation nut and flexible return bend locking fixed connection, the tail end of handle passes through third fixation nut and cable assembly locking fixed connection.

Further, the nozzle assembly includes the nozzle, leads electrical nozzle and insulating ring, the insulating ring is fixed between current electrical nozzle and nozzle, threaded connection between current electrical nozzle and the flexible return bend, between insulating ring and the current electrical nozzle and reach between nozzle and the insulating ring through interference fit's mode joint fixed connection or through the mode fixed connection of screw thread.

To sum up, the utility model provides a pair of flexible welder of variable angle compares with prior art, has following advantage:

(1) the utility model discloses a flexible return bend not only can change the welder angle according to operating condition wantonly, can also keep the angle after the adjustment unchanged simultaneously, in the production and the maintenance process of welded structure product, can improve operator welding reachability poor or can not be close the scheduling problem by a wide margin, has reduced the construction degree of difficulty, has improved welding efficiency, also is favorable to improving welding quality simultaneously.

(2) The utility model discloses all through threaded connection between each section, not only stability is good, convenient dismantlement moreover.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

As shown in fig. 1, the welding device comprises a nozzle assembly 1, a flexible elbow pipe 2, a handle assembly 3, a cable assembly 4, a welding wire 5, a water circulation pipeline 6, an air pipe 7, a cable 8, a main body 9, a cable pipe 10, a first pipeline fixing seat 11, a first fixing nut 12, a pipeline fixing seat 13, a pipeline fixing seat 14, a buffer protection sleeve 15, a second fixing nut 16, a connecting body 17, a handle 18, a welding gun switch 19, a third fixing nut 20, a nozzle 21, a contact tip 22 and an insulating ring 23.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, the utility model provides a pair of flexible welder of variable angle, including nozzle assembly 1, flexible return bend 2, handle assembly 3 and the cable assembly 4 that connects in order, the tail end of cable assembly 4 is connected with the welding machine (not shown in the figure). A plurality of pipelines are connected in the nozzle assembly 1, the flexible elbow pipe 2, the handle assembly 3 and the cable assembly 4 in a penetrating way, and each pipeline comprises a welding wire 5, a water circulation pipeline 6, an air pipe 7 and a cable 8. In the following description, the trailing end refers to the end facing the welder, and the leading end refers to the end facing the nozzle assembly 1.

In this embodiment, the length of the flexible bent tube 2 is about 190mm, a spiral tubular structure formed by winding a metal wire is adopted, preferably, the metal wire is a thick copper wire with good electrical conductivity and a diameter of more than 1.5mm, one thick copper wire is spirally wound without a gap to form a tubular structure, and the welding wire 5, the water circulation pipeline 6, the air tube 7 and the cable 8 uniformly penetrate through the flexible bent tube 2. The flexible bent pipe 2 has certain flexibility, can be adjusted at will according to actual working conditions, so that the angle of a welding gun is changed, has certain rigidity, can keep the adjusted angle unchanged during operation, and can bear large current. In the production and maintenance process of welding structure products, the problems that an operator is poor in welding accessibility or cannot approach the operator can be greatly improved, the construction difficulty is reduced, the welding efficiency is improved, and meanwhile, the welding quality is favorably improved.

The welding wire 5, the water circulation pipeline 6, the air pipe 7 and the cable 8 in the flexible elbow 2 are all sleeved with a layer of insulating sheath which can resist corrosion of grease and solvent and has a flame retardant effect. The outer side of the copper wire pipe of the flexible elbow pipe 2 is also wrapped with a layer of rubber pipe (not marked in the figure), and the rubber pipe plays a role in protecting the copper wire pipe inside the rubber pipe.

As shown in fig. 1, the cable assembly 4 includes a main body 9, a cable tube 10, and a first tube holder 11, the first tube holder 11 has a plurality of openings for passing the pipelines, each pipeline is correspondingly installed through the opening, and each pipeline passes through the main body 9 and the cable tube 10. The tail end of main part 9 is connected with the welding machine, locks fixed connection through first fixation nut 12 between the tail end of main part 9 and the first pipeline fixing base 11, makes things convenient for the dismouting between main part 9, first pipeline fixing base 11 and each pipeline. The front end of the main body 9 and the cable tube 10 may be fixedly connected by tape winding or by a fixing nut. The pipeline in main part 9 and the pipeline in the cable pipe 10 set up in segments, through coupling fixed connection between them, make things convenient for the dismouting, welding wire 5 is then a whole strip and passes main part 9, cable pipe 10, handle assembly 3, flexible return bend 2 and nozzle assembly 1 in order.

The length of the cable tube 10 is different according to different welding machines, generally about 3 meters, and the cable tube 10 is formed by wrapping a layer of insulating rubber tube outside a pipeline so as to protect the pipeline inside the pipeline. The front end and the tail end of the cable tube 10 are respectively provided with a pipeline fixing seat 13, 14, and the pipeline fixing seats 13, 14 are provided with a plurality of openings for passing through the pipeline. The pipeline fixing seat 13 at the tail end of the cable tube 10 is fixedly bound and connected with the front end part of the main body 9 through a fixing nut or an adhesive tape, and then the main body 9 is fixedly connected with the cable tube 10. The pipeline fixing seat 14 at the front end of the cable tube 10 is fixedly connected with the tail end of the handle assembly 3 through a third fixing nut 20, so that the cable assembly 4 is fixedly connected with the handle assembly 3, and each pipeline in the cable tube 10 is connected with each pipeline installed in the handle assembly 3 through a pipe joint in a segmented mode so as to be convenient to disassemble and assemble.

In order to ensure that the cable tube 10 is not excessively bent at the joint to damage the cable in the using process, in the embodiment, the tail end and the front end of the cable tube 10 are both sleeved with the buffering protective sleeve 15, and the buffering protective sleeve 15 is made of a corrugated plastic tube with an embedded spring, so that certain flexibility is ensured, and meanwhile, certain rigidity is also achieved, and the buffering protective function is achieved.

The handle assembly 3 comprises a connecting body 17, a handle 18 and a welding gun switch 19, the connecting body 17 has the same function as the pipeline fixing seat, a plurality of open holes for the pipeline to pass through are formed in the connecting body 17, external threads are formed in the connecting body 17, the handle 18 is sleeved outside the connecting body 17 and the pipeline, the welding gun switch 19 is installed on the handle 18, the external threads are formed in the tail end of the handle 18, the handle 18 is fixedly connected with the pipeline fixing seat 14 at the front end of the cable assembly 4 through a third fixing nut 20, and then the handle assembly 3 is connected with the cable assembly 2. The connector 17 is fixedly connected with the tail end of the flexible elbow pipe 2 through a second fixing nut 16, and then the handle assembly 3 is connected with the flexible elbow pipe 2, so that the disassembly is convenient.

To facilitate the removal of the handle 18, the handle 18 is preferably constructed as a separate body, two separate parts having the connecting body 17 mounted therein and fixedly connected together by a plurality of screws to form the complete handle 18.

The nozzle assembly 1 includes a nozzle 21, a contact tip 22 and an insulating ring 23, the contact tip 22 is composed of a contact tip main body and a contact tip seat, the contact tip main body and the contact tip seat are welded into an integrated structure, the tail end of the contact tip seat is provided with an external thread, the contact tip 22 is connected with the front end of the flexible elbow pipe 2 through a thread, a welding wire (not shown in the figure) passes through the contact tip 22 from the center, and a cable is connected with the contact tip 22. The insulating ring 23 is made of high-temperature-resistant materials, the insulating ring 23 is fixed between the contact tip 22 and the nozzle 21, and the insulating ring 23 and the contact tip 22 are clamped outside the contact tip 22 in an interference fit mode or connected through threads. The nozzle 21 has interchangeability, and the nozzle 21 is clamped on the outer side of the insulating ring 23 in an interference fit mode or connected with the insulating ring 23 through threads. A gap is reserved between the nozzle 21 and the contact nozzle 22, and the protective gas in the gas pipe 7 flows out from the gas hole on the contact nozzle 22, enters the gap and is sprayed out from the front end of the nozzle 21. The length of the nozzle 21 is 43.5mm, the contact tip 22 is M8 x 30, the whole size is smaller than that of a universal part, the flexible swing in a narrow space is convenient, and a welding wire of 0.8-1.6mm can be used.

Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a flexible welder of variable angle, includes nozzle assembly, flexible return bend, handle assembly and the cable assembly that connects in order, the tail end and the welding machine of cable assembly are connected its characterized in that: the utility model discloses a flexible return bend, including nozzle assembly, flexible return bend, handle assembly and cable assembly, the spiral tubular structure that flexible return bend formed for being twined by the wire, all adopt threaded connection between nozzle assembly, flexible return bend, the handle assembly and the cable assembly, the cable assembly includes main part, cable pipe and first pipeline fixing base have a plurality of trompils that are used for passing the pipeline on the first pipeline fixing base, through first fixation nut locking fixed connection between the tail end of main part and the first pipeline fixing base, the front end and the cable pipe fixed connection of main part.

2. The variable angle flexible welding gun according to claim 1, characterized in that: the metal wire is a copper wire.

3. A variable angle flexible welding gun according to claim 2, characterized in that: the metal wire is a thick copper wire with the diameter of more than 1.5 mm.

4. The variable angle flexible welding gun according to claim 1, characterized in that: and a layer of rubber pipe is sleeved on the outer side of the flexible bent pipe.

5. The variable angle flexible welding gun according to claim 1, characterized in that: and the front end and the tail end of the cable tube are respectively sleeved with a buffering protective sleeve.

6. The variable angle flexible welding gun according to claim 5, characterized in that: the buffering protection sleeve is a corrugated pipe with an embedded spring.

7. The variable angle flexible welding gun according to claim 1, characterized in that: the handle assembly comprises a connector, a handle and a welding gun switch, a plurality of holes for penetrating through a pipeline are formed in the connector, the handle is sleeved outside the connector, the welding gun switch is installed on the handle, the connector is fixedly connected with the flexible bent pipe in a locking mode through a second fixing nut, and the tail end of the handle is fixedly connected with the cable assembly in a locking mode through a third fixing nut.

8. The variable angle flexible welding gun according to claim 1, characterized in that: the nozzle assembly comprises a nozzle, a conductive nozzle and an insulating ring, wherein the insulating ring is fixed between the conductive nozzle and the nozzle, the conductive nozzle is in threaded connection with a flexible bent pipe, the insulating ring is in threaded connection with the conductive nozzle, and the insulating ring is in clamped connection with the conductive nozzle in an interference fit mode or in threaded connection with the insulating ring in a threaded mode.