CN2442781Y

CN2442781Y - Conducting nozzle

Info

Publication number: CN2442781Y
Application number: CN 00238189
Authority: CN
Inventors: 朱明生; 陈璧
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-10
Filing date: 2000-07-10
Publication date: 2001-08-15
Anticipated expiration: 2010-07-10

Abstract

The utility model relates to a conducting nozzle, particularly to a conducting nozzle of a welding gun of a carbon dioxide welding machine, which is provided with a triangular or square or regular polygonal through hole with round angles. The conducting nozzle has the advantages of simple processing method and high productive efficiency, reduces the abrasion of the through hole and prolongs the service life while in use.

Description

Ignition tip

The utility model relates to a kind of ignition tip, and is especially relevant with the ignition tip of carbon dioxide arc welding machine welding gun termination.

The carbon dioxide arc welding machine welding gun all is equipped with ignition tip, and circular welding wire welds after also conducting electricity in the axially extending bore of ignition tip.The axially extending bore of existing ignition tip has circle and triangle.The ignition tip of band manhole is because the conduction between welding wire and the ignition tip through hole has only a conductiving point, therefore electric current can not conduct welding wire rapidly and cause the ignition tip heating, thereby the wearing and tearing of ignition tip through hole have been increased, service life is short, need the frequent ignition tip that more renews, this not only increases production cost also influences operating efficiency.Having proposed a kind of through hole in the file of application number 97243281.7 is leg-of-mutton ignition tip.This ignition tip be owing to can make in by the triangle via process at welding wire and have two conductiving points between welding wire and through hole at least, can reduce because of conducting electricity the through hole wearing and tearing that bad heating increases, thereby prolong its service life.But weak point is, this triangle pass ignition tip can only adopt the core rod Forging Technology of punching one by one to produce, and not only production efficiency is low, and can only produce the ignition tip of bullet.

The purpose of this utility model is that a kind of production efficiency height will be provided, and can reduce the through hole wearing and tearing in the use, the ignition tip of prolongation working life simultaneously.

The ignition tip of the utility model design includes the columnar metal body of a tape spool to through hole, and an end of column has thread segment, and said through hole is a triangle, and leg-of-mutton each angle is a fillet.

For increasing conductiving point, said through hole is a square, and foursquare each angle is a fillet.

For further increasing the service life, said through hole is a regular polygon, and each angle of regular polygon is a fillet.

According to the needs of welding machine welding gun, said columnar metal body can be a bullet, also can be cylinder.

The utility model adopts each angle to be the ignition tip structure of the through hole of rounded triangle or square or regular polygon, its advantage is tangible, have two conductiving points when welding wire is by through hole in using on the one hand at least, can reduce because of conducting electricity the through hole wearing and tearing that bad heating causes, thereby prolong service life; On the other hand, the ignition tip of this through hole can adopt the processing method such as the drawing method moulding of moulding heavy wall copper pipe, thereby can improve the production efficiency of ignition tip greatly, reduces its production cost; Moreover production profile easily is bullet or cylindrical ignition tip.

Fig. 1 is the structure chart of the ignition tip of existing band triangle through hole.Wherein a is a front view, and b is a vertical view.

Fig. 2 is that each angle of the utility model design is the structure chart of the ignition tip of rounded triangle through hole.Wherein a is a front view, and b is a vertical view.

Fig. 3 is that each angle of the utility model design is the structure chart of ignition tip of the square through-hole of fillet.Wherein a is a front view, and b is a vertical view.

Below in conjunction with accompanying drawing embodiment of the present utility model and effect thereof are further described.

Fig. 1 is the structure chart of existing ignition tip, and its through hole 12 is simple triangles.Fig. 2 is a kind of ignition tip of the utility model design.It comprises the axially extending bore 2 of cylinder 1, cylinder 1 and the thread segment 3 of an end, and axially extending bore 2 is that each angle is a rounded triangle.Diameter according to welding wire is selected the different leg-of-mutton length of sides, makes it adaptive.The radius of each fillet of triangle is generally less than or equals the radius of welding wire.Fig. 3 is the another kind of ignition tip of the utility model design, and different is that through hole 32 is the square of fillet for each angle, and column is a bullet.Because the through hole of the ignition tip in the prior art is simple triangle, therefore can only adopt the core rod Forging Technology of punching one by one to produce, not only production efficiency is low but also profile can only be a bullet.And Fig. 2 of the utility model design and ignition tip shown in Figure 3, because its each angle is fillet, therefore can adopt the moulding process such as the drawing method of the heavy wall copper pipe that those skilled in the art know to process, because the difference of moulding process, compared with the prior art the product of different size can be enhanced productivity 5～10 times.For example be applicable to its 1 millimeter of through hole triangle length of side of 0.6 mm dia welding wire, the ignition tip of 0.3 millimeter of radius of corner, a machine moon output of two classes every day can reach more than 300,000.The different structure made from copper material but the identical ignition tip of specification is close substantially its service life in welding process, the slightly increase of square through-hole.Once making each angle is the ignition tip of the regular hexagon through hole of fillet, and test shows that be significantly increased its service life.

Claims

1. an ignition tip is characterized in that it includes the columnar metal body of a tape spool to through hole, and an end of column has thread segment.

2. by the said ignition tip of claim 1, it is characterized in that said through hole is a triangle, said leg-of-mutton each angle is a fillet.

3. by the said ignition tip of claim 1, it is characterized in that said through hole is square, said foursquare each angle is a fillet.

4. by the said ignition tip of claim 1, it is characterized in that said through hole is a regular polygon, each angle of said regular polygon is a fillet.

5. by claim 1 or 2 or 3 or 4 said ignition tips, it is characterized in that said column is a bullet.

6. by claim 1 or 2 or 3 or 4 said ignition tips, it is characterized in that said column is a cylinder.