CN201455520U

CN201455520U - Welding tong

Info

Publication number: CN201455520U
Application number: CN2009201199483U
Authority: CN
Inventors: 冯建清
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-15
Filing date: 2009-05-15
Publication date: 2010-05-12
Anticipated expiration: 2019-05-15

Abstract

The utility model provides a welding tool, in particular to a welding tong suitable for manual arc welding operations. The utility model aims at solving the technical problem of providing the welding tong suitable for manual arc welding operations. The welding tong features novel structure, convenient use and high safety and simultaneously has the characteristic of low production cost. The technical problem of the utility model is solved by the following technical scheme: the welding tong comprises a bent handle and a tong clamp which are mutually hinged. The front ends of the tong clamp and the bent handle are provided with an upper pressure head and a lower pressure head which are matched with each other. The contact surface of the upper pressure head and the lower pressure head is also provided with a pair of metal welding pieces which are used together. The tail ends of the metal welding pieces are connected with cable wires which are connected with the power supply. The cable wires are arranged in the tong clamp which is formed by connecting a lower tong head and a handle in a split manner. The bent handle, the handle and the shell of the lower tong head are made of insulating materials.

Description

A kind of electrode holders

Technical field

The utility model relates to a kind of soldering appliance, is specially a kind of electrode holders that are applicable to manual arc welding operation.

Background technology

Electrode holders are common equipments of welding object, and traditional electrode holders are made of pincers handle, caliper and jaw, and the pincers handle is the cylindrical shell of a hollow, power lead from an end of pincers handle insert be arranged on caliper in trip bolt be connected.In weld job, electrode holders clamping welding rod and bearing great current make between welding rod and the welding base metal and produce electric arc, and fusing welding rod and mother metal weld.For the heating that reduces electrode holders, make it have good electrical conductivity and thermal diffusivity, existing electrode holders adopt less red copper of resistance or copper alloy to make mostly, this has not only improved production cost, and, high-temperature dust that produces when welding rod melts in actual use and the bead that splashes are covered with the jaw of electrode holders gradually, prolongation along with the working time, the contact condition of electrode holders and welding rod constantly worsens, cause starting the arc difficulty, instability, the caloric value of electrode holders constantly rises, in addition make the welder because of it scalds one's hand can't normal running.

Also do not address this problem better technical scheme at present.

Summary of the invention

The technical problems to be solved in the utility model is: the problem at above-mentioned existence provides a kind of electrode holders that are applicable to manual arc welding operation, and these electrode holders should have novel structure, easy to use, safe, simultaneously, also have the low characteristics of production cost.

The technical scheme that the utility model adopted is: a kind of electrode holders, comprise curved and clamp being hinged, the front end of described clamp and curved handle is provided with the upper and lower pressure head of mutual coupling, also be provided with a pair of metal welding contact pin of working in coordination and using on the contact-making surface of described upper and lower two pressure heads, the end of this metal welding contact pin links to each other with the cable that power supply is communicated with, this power cable is installed in the clamp, described clamp is connected and composed by lower pliers head and handle split, and the shell of described curved handle, handle and lower pliers head all has insulating materials to constitute.By clamp being arranged to the branch body structure, and constituting the handle of clamp and the shell of lower pliers head all adopts insulating materials to constitute, as plastics etc., this has not only reduced the production cost of electrode holders widely, and its position that contacts with staff is made of insulating materials, its not heat conduction has been avoided constantly rising because of the caloric value of electrode holders, and make the welder because of its scald one's hand can't normal running situation take place.

Above-mentioned electrode holders, as preferably, described upper and lower pressure head flexibly connects by bearing pin, opens or closes electric welding clamp mouth so that make.

Above-mentioned electrode holders, as preferably, described clamp is connected and composed by lower pliers head and handle split, and the upper end of described handle is by being bolted on the lower pliers head.Be equipped with the screw that is complementary with bolt on the outer surface of described lower pliers head, handle, after bolt passes two screws, handle fixedlyed connected with lower pliers head.

Above-mentioned electrode holders, as preferably, the cross section of described handle upper end is " U " shape structure, also is arranged with the groove that is complementary with lower pliers head on the inner ring of this U-shaped seat.

Above-mentioned electrode holders as preferably, also are provided with a spring between described curved and the lower pliers head, and spring is installed in the spring base on the lower pliers head, and the outer ring of this spring also is provided with an insulating barrier.By spring is set, upper and lower pressure head is contacted under the effect of lever principle or separate, thus the switch of control electrode holders.

Above-mentioned electrode holders, as preferably, hollow in the described lower pliers head also is provided with copper sheathing, after the power cable that links to each other with metal welding contact pin passes copper sheathing, by being bolted in the handle in it.Inside at lower pliers head is provided with copper sheathing, not only can make the effect of whole power cable conducting performance electric welding, simultaneously, has saved material, has reduced production cost widely.

The beneficial effects of the utility model are: by clamp being arranged to the branch body structure, and the handle and the lower pliers head shell that constitute clamp are the insulating materials formation, the copper pipe that cable is installed only is set in lower pliers head, not only reduced the production cost of electrode holders widely, alleviated the overall weight of electrode holders simultaneously, it is easy to carry more.In addition, because the shell of curved handle, handle and the lower pliers head of whole electrode holders is the not Heat Conduction Material formation that insulate, thereby avoided making the hot generation that can not normally use of handle because of a large amount of heats that welding process produces.In addition, by handle with curved on the spring that upper and lower pressure head is opened and closed is set, during use, as long as can finish welding sequence by pressing spring as required; Simple to operate, safe to use, and simple and reasonable, modern design is with the promotion of good sense.

Description of drawings

Fig. 1 is a perspective view of the present utility model;

Fig. 2 is multiple shot array figure of the present utility model;

Fig. 3 is a front view of the present utility model;

Fig. 4 is the structural representation of copper pipe among Fig. 3;

Fig. 5 is the structural representation of handle upper end cross section among Fig. 2.

The specific embodiment

Below be described further by the specific embodiment the technical solution of the utility model.

Show an embodiment of a kind of electrode holders that the utility model provides as Fig. 1, Fig. 2.It comprises a clamp 6 and is movably articulated in the curved 1 of clamp head, described clamp 6 is the upper and

lower pressure head

2,5 that mates mutually with curved head 1, respectively is provided with the metal

welding contact pin

3,4 of working in coordination and using on the contact-making surface of described upper and lower two pressure heads.Described clamp 6 is formed by connecting by lower pliers head 10 and handle 12 splits, and described handle 12, lower pliers head 10 shells all have the insulating materials formation to 1 with curved.By clamp being arranged to the branch body structure, and constituting the handle of clamp and the shell of lower pliers head all adopts insulating materials to constitute, as plastics etc., this has not only reduced the production cost of electrode holders widely, and its position that contacts with staff is made of insulating materials, its not heat conduction has been avoided constantly rising because of the caloric value of electrode holders, and make the welder because of its scald one's hand can't normal running situation take place.

Hollow in the described lower pliers head 10 is provided with copper sheathing 15 in it, after the terminal power cable 11 that connects of described metal welding contact pin passes copper sheathing, by being bolted in the handle 12.By inside copper sheathing is set, not only can makes the effect of whole power cable conducting performance electric welding, simultaneously, saved material, reduced production cost widely at lower pliers head.

Flexibly connect by bearing pin 7 between the described upper and

lower pressure head

2,5, described upper and lower pressure head is with the fulcrum of bearing pin as lever, thereby opens or closes electric welding clamp mouth.

Described clamp 6 is connected and composed by lower pliers head 10 and handle 12 splits, and the cross section of described handle upper end is " U " shape structure, also is arranged with the groove 14 that is complementary with lower pliers head on the inner ring of this U-shaped seat 13.The upper end of described handle is fixed on the lower pliers head by bolt 13.Be equipped with the screw that is complementary with bolt on the outer surface of described lower pliers head, handle, after bolt passes two screws, handle fixedlyed connected with lower pliers head.

Described curved 1 and lower pliers head 10 between also be provided with a spring 8, spring is installed in the spring base 8-1 on the lower pliers head, the outer ring of this spring also is provided with an insulating barrier 9. by spring is set, and upper and lower pressure head is contacted under the effect of lever principle or separate, thus the switch of control electrode holders.

As further improvement of the utility model, described handle upper end is formed by connecting with the lower end screw thread of lower pliers head, both can be separated by rotary handle during use.

Further improve as of the present utility model, the inboard of described handle upper end is provided with chute, and the lateral wall of described lower pliers head is provided with projection, and described handle cooperates with the lower pliers head clamping and forms.

When the electrode holders in the present embodiment use, on the contact-making surface of push-down head, put into two heatings, hold curved and handle then, the application of force will be bent and be moved down overcoming spring potential energy, described seaming chuck moves down with the fulcrum of bearing pin as lever, till touching with push-down head; Can finish the welding of metal.After welding is finished, loose one's grip, curved under the spring potential energy effect of spring, resetting.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. electrode holders, comprise the curved handle (1) and the clamp (6) that are hinged, described clamp and curved front end be provided with mutual coupling on, push-down head (2,5), on described, also be provided with a pair of metal welding contact pin (3 of working in coordination and using down on the contact-making surface of two pressure heads, 4), the end of this metal welding contact pin links to each other with the cable (11) that power supply is communicated with, this power cable is installed in the clamp, it is characterized in that: described clamp (6) connects and composes described curved handle (1) by lower pliers head (10) and handle (12) split, handle (12) all has insulating materials to constitute with the shell of lower pliers head (10).

2. electrode holders according to claim 1 is characterized in that: described upper and lower pressure head (2,5) flexibly connects by bearing pin (7).

3. electrode holders according to claim 1 is characterized in that: described clamp (6) is connected and composed by lower pliers head (10) and handle (12) split, and the upper end of described handle (12) is fixed on the lower pliers head (10) by bolt (13).

4. electrode holders according to claim 3 is characterized in that: the cross section of described handle (12) upper end is " U " shape structure, also is arranged with the groove (14) that is complementary with lower pliers head (10) on the inner ring of this U-shaped seat (13).

5. electrode holders according to claim 4 is characterized in that: also be provided with a spring (8) between described curved handle (1) and the lower pliers head (10), spring is installed in the spring base (8-1) on the lower pliers head, and the outer ring of this spring also is provided with an insulating barrier (9).

6. electrode holders according to claim 5, it is characterized in that: the interior hollow of described lower pliers head (10), also be provided with copper sheathing (15) in it, after the power cable (11) that links to each other with metal welding contact pin passes copper sheathing, be fixed in the handle (12) by bolt (16).