CN1907626A

CN1907626A - Welding tongs head of manual electric arc welding

Info

Publication number: CN1907626A
Application number: CN 200610052901
Authority: CN
Inventors: 曹清良
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-09
Filing date: 2006-08-09
Publication date: 2007-02-07
Anticipated expiration: 2026-08-09
Also published as: CN100475406C

Abstract

The invention relates to a hand-operated electric arc welding binding clip, with low contact resistance, high safety and long service life, wherein it comprises binding clip, insulated sheath and insulated handle; the sheath is mounted at the lower part of front part of binding clip; the handle is at the back end of binding clip; the invention is characterized in that: the wiring end of binding clip is in hollow cam shape whose front is big and back is small; inside the binding clip, a taper copper rod is coaxially mounted to move along the axle, while its taper direction and taper degree are same as the wiring end. The invention is used to weld metal.

Description

Welding tongs head of manual electric arc welding

Technical field

The present invention relates to a kind of soldering appliance, especially a kind of welding tongs head of manual electric arc welding is mainly used in the welding of metal.

Background technology

Caloric value is big in the electrode holders course of work, security is low is puzzlement people's a difficult problem always, in order to solve this difficult problem, the connected mode of improving cable initiatively reduces its caloric value, its heat abstractor of passive improvement, reduce the temperature of electrode holders, for example the patent No. is that 91104618.6 Chinese invention patent discloses a kind of electrode holders, offers elongated slot on the electric conductor in this technology, can save copper material, increase the electric conductor area of dissipation.On electric conductor, offer louvre, can reduce the heat that welding rod is delivered to the electric conductor rear end.Termination is installed, a large amount of scrap that produce in the time of can avoiding on electric conductor, boring wiring hole on electric conductor.This invention can be saved copper material, low cost of manufacture, and can prolong electrode holders service life, and improve workman's working condition, increase work efficiency.But still there is defective in this patent of invention, for example, 1) described elongated slot its side of being, cross section, and cable is round, and so assembling back elongated slot can not be fitted fully with cable, contact area is little, caloric value is just greatly.2) welding binding clip is fastenedly connected by bolt and cable, causes its contact area to reduce, and contact resistance increases, thereby has increased the heat that produces in the welding process, has shortened the service life of soldering turret.3) because fastening bolt exposes, the danger of getting an electric shock takes place easily.

Summary of the invention

The present invention is just at the problems referred to above, provides a kind of and is connected reliably, convenient with cable, and contact resistance is little, and caloric value is little, and security performance is good, long service life welding tongs head of manual electric arc welding.

The technical solution adopted in the present invention is: welding tongs head of manual electric arc welding, have welding binding clip, welding binding clip insulation sleeve and insulated handle, the welding binding clip insulation sleeve is contained in below the front portion of welding binding clip, insulated handle is contained in the rear end of welding binding clip, it is pre-large post-small hollow round table-like that the terminals that it is characterized in that described welding binding clip are, the inner coaxial taper copper bar that can move along its axis that is equipped with of welding binding clip, its taper direction is consistent with the taper direction and the tapering of welding binding clip terminals with tapering.

Described welding binding clip insulation sleeve inside is provided with a boss that has a through hole, and the slightly larger in diameter of this through hole is in the shank of taper copper bar, and less than its maximum gauge place, the shank of taper copper bar passes this through hole.

The bare terminal of described welding binding clip is a plane, is pressed with the fixedly groove of welding rod on it.

The invention has the beneficial effects as follows: the terminals of welding binding clip are hollow round table-like among the present invention, can with the applying of columniform cable maximum area, contact area is big, contact resistance is little, caloric value is little.Cable cooperates the reverse tension of utilization tapering between the two and fixes simple and fast, safe and reliable with welding binding clip.Owing to do not had to be exposed to outside hold-down screw, also just avoided the possibility of electric leakage, improved the electrode holders security, also prolonged the service life of soldering turret.

Description of drawings

Fig. 1 is a main cutaway view of the present invention.

Fig. 2 is that the A-A of Fig. 1 is to cutaway view.

Fig. 3 is the main cutaway view of welding binding clip among the present invention.

Fig. 4 is the vertical view of Fig. 3.

The B-B of Fig. 5 Fig. 4 is to cutaway view.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, present embodiment has welding binding clip 1, welding binding clip insulation sleeve 4 and insulated handle 5, in this example, welding binding clip 1 is selected the processing of high-quality copper tube for use or is selected for use the high-quality copper plate to roll and forms, welding binding clip insulation sleeve 4 is contained in below the front portion of welding binding clip 1, and insulated handle 5 is contained in the rear end of welding binding clip 1.As Fig. 4, shown in Figure 5, bare terminal 1-1 strikes out plane, and the 1-3 that has a groove, with the clamping that guarantees welding rod firmly and be electrically connected reliable.Characteristics of the present invention are that the terminals 1-2 of welding binding clip 1 is hollow round table-like, welding binding clip 1 is inner coaxial is equipped with a taper copper bar 3 that can move along its axis, its taper direction is consistent with welding binding clip 1 terminals 1-2 taper direction, welding binding clip insulation sleeve 4 inside are provided with a boss 4-1 who has a through hole, the shank of taper copper bar 3 passes this through hole, and can move axially along this through hole, the slightly larger in diameter of this through hole is in the shank of taper copper bar 3, less than its maximum gauge place, can prevent that taper copper bar 3 is completely pulled out of welding binding clip 1.

The effect of described groove 1-3 is the steady welding rod of folder, increases area of dissipation, the passable cross of the decorative pattern of layout, M shape etc. it on.

Welding binding clip 1 with the connected mode of cable conductor core 2 is among the present invention: the round table-like plumb joint terminals 1-2 that cable conductor core 2 is inserted from behind hollow, push the taper copper bar 3 that places the electrode holders front end again, insert it in the cable conductor core 2, cable is strained in the other direction can be finished connection then.When needs are changed cable, can then cable be pulled out promptly replaceable with taper copper bar 3 along its axial drawn out cable wire stylet 2.This connected mode makes the welding binding clip 1 and the contact resistance of cable conductor core 2 reduce, reduce electric energy because of being converted into the loss that heat energy produces, greatly reducing the heat that produces in the welding process, improved its security performance, prolong the service life of soldering turret, reduced use cost.

Claims

1, a kind of welding tongs head of manual electric arc welding, have welding binding clip (1), welding binding clip insulation sleeve (4) and insulated handle (5), welding binding clip insulation sleeve (4) is contained in below the front portion of welding binding clip (1), insulated handle (5) is contained in the rear end of welding binding clip (1), it is characterized in that: the terminals (1-2) of described welding binding clip (1) are pre-large post-small hollow round table-like, the inner coaxial taper copper bar (3) that can move along its axis that is equipped with of welding binding clip (1), its taper direction is consistent with the taper direction and the tapering of welding binding clip (1) terminals with tapering.

2, welding tongs head of manual electric arc welding according to claim 1, it is characterized in that: described welding binding clip insulation sleeve (4) inside is provided with a boss (4-1) that has a through hole, the slightly larger in diameter of this through hole is in the shank of taper copper bar (3), less than its maximum gauge place, the shank of taper copper bar (3) passes this through hole.

3, welding tongs head of manual electric arc welding according to claim 1 and 2 is characterized in that: the bare terminal (1-1) of described welding binding clip (1) is a plane, is pressed with the fixedly groove of welding rod (1-3) on it.