CN201227714Y

CN201227714Y - Wedge type arc welding tongs

Info

Publication number: CN201227714Y
Application number: CNU200820013435XU
Authority: CN
Inventors: 范垂顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-04-29
Anticipated expiration: 2018-06-13

Abstract

An oblique wedge electrode holder mainly solves the problem that a cable wire in the joint is not pressed tightly so that a handle is too hot to touch, and the like. The electrode holder comprises an operating lever assembly, a connecting wire assembly and a handle assembly. The key points of the technical scheme is as follows: an upper binding clip plate is fixed to he operating lever through an iron washer; a lower binding clip plate in the connecting wire assembly is fixed on an insulator of the handle assembly through a lower supporting iron plate; the lower binding clip plate, an inclined surface end of the lower supporting iron plate and a spring supporting iron plate are assembled in a fixing frame and form an enclosure space; the cable wire is pressed tightly on the inclined surface through a wedge pressing block; the periphery of a supporting tube which is fixed on the insulator is used for fixing a handle cover through a thermal isolator; and a heat insulating mattress is arranged between the end parts of the thermal isolator and the handle cover, and the end of the insulator. The electrode holder has the advantages that the structure is reasonable and the pressing of the cable wire joint is compact, thereby fundamentally minimizing the impact of contact resistance, lowering heat productivity, ensuring the electrode holder is not too hot to touch after being operated many times, reducing the cost and improving the operational condition.

Description

Wedge type electrode holder

Technical field

The utility model relates to a kind of arc-welding apparatus, particularly a kind of effect of heat insulation that is used for alterating and direct current significantly, the Wedge type electrode holder of continuous welding operation non-scald on hand.

Background technology

At present, the various electrode holders that sell the domestic market are divided into by the connecting mode of its cable and electrode holders joint: spiral, presser type, three kinds of structures of laminated type.Mainly there is following problem in wherein spiral and presser type structure:

1, the electrode holders hot source point has three places: the contact resistance heat that cable adapter place in the wiring assembly of first electrode holders produces, and the heat maximum, it two is radiant heat that electro-welding arc produces, heat takes second place; It three is the resistance heats that produce in cable when energising, the heat minimum.The heat that this three places hot source point takes place makes the electrode holders temperature high with contact conduction and radiation conduction, and handle scalds one's hand when being mainly reflected in operation.

2, the control rod assembly of electrode holders and the upper and lower binding clip of the electric conductor in the handle assembly are copper castings, and its surface ratio is more coarse, and a large amount of oxide skins are arranged, and the outer surface resistance value is bigger; How its inner impurity easily makes resistance increase, so energising back resistance heat also increases.

3, the cable adapter in the wiring assembly of electrode holders all adopts screw or bolted, the one, because of moment of torsion little, so press not tight, the 2nd, the thread looseness that influences that is expanded with heat and contract with cold causes loose contact, cause contact resistance to strengthen, so heat also strengthens thereupon; Because cable adapter place temperature is too high, cable rubber is burnt, so can lose one section cable; The corner angle at the handle afterbody endoporus place of electrode holders, the cable rubber of also grinding away easily.

4, the structural design of the upper and lower binding clip of existing electrode holders is unreasonable, and welding rod is outwards scurried out easily, in case during the contact conductive body, will the company of causing.

The inventor once designed a kind of laminated type electrode holders (the license notification number is CN100348356C) at the problems referred to above, and the cable adapter share split that is about to electrode holders is upper and lower cable thigh, and links into an integrated entity with the pressing of upper and lower binding clip plate respectively.But when practical operation,, still there is the above-mentioned problem to be overcome that has so plant joint because of the joint pressing is difficult to keep tight and uniformity.

In sum, existing spiral, presser type, laminated type electrode holders joint all exist and limit by structure, cause the not tight problem of cable line pressure, so contact resistance is bigger, caloric value is also big.By contrast, the presser type joint than spiral stronger, caloric value is taken second place, and that laminated type is pressed is tighter, and it is all little that caloric value is also planted joint than the first two, but because of laminated type electrode holders manufacturing process many, so also have the unreal situation of pressing sometimes, the problem that handle scalds one's hand when being easy to weld job occur.In addition, the material cost of laminated type electrode holders is big, makes loaded down with trivial detailsly, and cost is too high, also is unfavorable for market competition and applies.Therefore, existing electrode holders also need structurally further to innovate.

The utility model content

The purpose of this utility model provides a kind of Wedge type electrode holder of brand new, it has solved problems such as the handle that does not tightly cause because of joint cable line pressure that existing electrode holders exist scalds one's hand effectively, its reasonable in design, the cable adapter extruding closely, fundamentally reduce contact resistance, reduce caloric value, guarantee electrode holders non-scald on hand when the continuous welding operation, further reduce manufacturing cost, improve the welding job condition.

The purpose of this utility model is achieved in that this Wedge type electrode holder comprises the control rod assembly that fits together, wiring assembly and handle assembly, technical essential is: the upper grip head plate that is pressed into copper coin in the described control rod assembly is fixed together by iron chair and control stick, the lower pliers head plate that is pressed into copper coin in the described wiring assembly is fixed on the insulator of described handle assembly by lower support iron plate, and make the beveled end of described lower pliers head plate and lower support iron plate and spring support iron plate be assembled in formation enclosure space in the same fixed frame, cable closely is pressed on the inclined-plane of lower pliers head plate and lower support iron plate by the wedge shape briquetting, the stay pipe periphery that is fixed on the insulator in the described handle assembly is passed through insulator fixed handle cover, between the contact-making surface of the end of described insulator and taper knob and insulator end heat insulating mattress is set.

A side on plane is provided with the boss that prevents the outside play of welding rod on the described insulator front end.

The described lower pliers head plate that is pressed into copper coin adopts slab construction.

The stay pipe afterbody that is fixed on the insulator in the described handle assembly is provided with expanded bore, between the afterbody contact-making surface of described expanded bore periphery and described taper knob heat insulation loop is set.

The interior week attaching reflectance coating that is fixed in the support tube wall on the insulator in the described handle assembly.

Because the upper grip head plate of the utility model control rod assembly is fixed together by iron chair and control stick, iron chair can be economized half non-ferrous metal copper, so significantly reduce manufacturing cost.Because of being assembled in the same fixed frame, the beveled end of lower pliers head plate in the wiring assembly and lower support iron plate and spring support iron plate form enclosure space, so its reasonable in design, can cable closely be pressed on the inclined-plane of lower pliers head plate and lower support iron plate by the wedge shape briquetting, make the cable adapter extruding closely, fundamentally reduce contact resistance, reduce caloric value, guarantee electrode holders non-scald on hand when the continuous welding operation.Stay pipe periphery on the insulator in the handle assembly is by insulator fixed handle cover, between the contact-making surface of the end of insulator and taper knob and insulator end heat insulating mattress is set, utilize insulator, heat insulating mattress to form heat shield one, successfully the handle sleeve is kept apart fully, further improve the weld job condition, thus solve effectively that existing electrode holders exist because of the continuous welding operation that does not tightly cause of joint cable line pressure the time handle problem such as scald one's hand.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.

Fig. 2 is the cutaway view of Fig. 1 along the A-A line.

Fig. 3 Fig. 2 is along the cutaway view of C-C line.

A kind of structural representation of wedge shape briquetting among Fig. 4 figure.

Fig. 5 is that the D of Fig. 6 is to view.

Fig. 6 is the cutaway view of Fig. 1 along the B-B line.

Fig. 7 is the profile of Fig. 6 along the E-E line.

Fig. 8 is a kind of structural representation of the lower pliers head plate among Fig. 1.

Fig. 9 is the vertical view of Fig. 8

Figure 10 is a kind of partial structurtes schematic diagram figure of insulator front end among Fig. 1.

Figure 11 is the vertical view of Figure 10.

Sequence number explanation among the figure: 1 iron chair, 2 upper grip head plates, 3 control sticks, 4 bearing pins, 5 springs, 6 screws, 7, cover for seat, 8 seat cushions, 9 heat insulating mattress, 10 reflectance coatings, 11 lower pliers head plates, 12 lower support iron plates, 13 bearings, 14 screws, 15 screws, 16 insulators, 17 tension discs, 18 fixed frames, 19 wedge shape briquettings, 20 spring support iron plate, 21 taper knobs, 22 insulators, 23 stay pipes, 24 heat insulation loop, 25 screws, 26 holding screws, boss 27.

The specific embodiment

Describe concrete structure of the present utility model in detail according to Fig. 1-11.This Wedge type electrode holder comprises the parts such as control rod assembly, wiring assembly and handle assembly that fit together.Wherein control rod assembly comprises: parts such as iron chair 1, upper grip head plate 2, control stick 3, bearing pin 4, tensioning spring 5, screw 6, cover for seat 7, insulating pad 8.The wiring assembly comprises: parts such as lower pliers head plate 11, lower support iron plate 12, bearing 13, screw 14, screw 15, tension disc 17, fixed frame 18, wedge shape briquetting 19, spring support iron plate 20.Handle assembly comprises: parts such as insulator 16, stay pipe 23, insulator 22, reflectance coating 10, taper knob 21 and heat insulating mattress 9, heat insulation loop 24.

Iron chair 1 in the control rod assembly welds together with the iron skeleton of control stick 3, will be fixed on the iron chair 1 by screw 25 with the upper grip head plate 2 that copper coin is pressed into again.Because iron chair 1 is made of iron, so economize half non-ferrous metal copper, can reduce manufacturing cost.Control rod assembly is hinged with the bearing 13 of wiring assembly by its bearing pin 4, and compresses upper grip head plate 2 and lower pliers head plate 11 comes the clamping welding rod with tensioning spring 5.The interior tensioning spring 5 of insulated hole that is fixed on control stick 3 utilizes screw 6, cover for seat 7, insulating pad 8 to be positioned on the spring support iron plate 20.

Lower pliers head plate 11 that is pressed into copper coin in the wiring assembly and lower support iron plate 12 lump together fixing with bearing 13 by screw 14 again, utilize screw 15 to be fixed on the insulator 16 of handle assembly then.And make the beveled end of lower pliers head plate 11 and lower support iron plate 12 and spring support iron plate 20 be assembled in formation enclosure space in the same fixed frame 18.Wedge shape briquetting 19 is put into this enclosure space, with the inclined-plane of its inclined-plane towards lower pliers head plate 11 and lower support iron plate 12, is pressed on the core that divests rubber (shown in chain-dotted line among the figure) of cable.No longer mobile for making after 19 wedgings of wedge shape briquetting, can be locked by holding screw 26.Apply a very little horizontal thrust for wedge shape briquetting 19, just can produce very big extruding force, at an easy rate cable closely is squeezed on the inclined-plane of lower pliers head plate 11 and lower support iron plate 12 by tension disc 17, forms the good cable of contact and the joint of electrode holders.Because the joint contact well, contact resistance is little, so it is also little to produce heat after the energising, non-scald on hand has been created basic condition when giving solution electrode holders continuous welding operation.

Stay pipe 23 peripheries that are fixed on the insulator 16 in the handle assembly overlap 21 by insulator 22 fixed handles, between the contact-making surface of the end of insulator 22 and taper knob 21 and insulator 16 ends heat insulating mattress 9 are set.For fear of the cable rubber of grinding away, improve the safe application performance of electrode holders, the afterbody that is fixed in the stay pipe 23 on the insulator 16 in handle assembly is provided with expanded bore, and the afterbody contact position of cable rubber and stay pipe 23 is with arc transition.Can also between the afterbody contact-making surface of expanded bore periphery and taper knob 21, heat insulation loop 24 be set in addition, with the effect of heat insulation of further reinforcement to taper knob 21.Insulator 22 can adopt adiabatic expanded material to make, heat insulating mattress 9, heat insulation loop 24 can adopt the plastic material of excellent heat insulating performance to make, form one heat shield by insulator 22, heat insulating mattress 9, heat insulation loop 24, successfully handle sleeve 21 is kept apart fully, trap heat is to taper knob 21 conduction effectively, thereby the temperature of taper knob 21 is reduced greatly, and non-scald on hand further creates favorable conditions during for realization electrode holders continuous welding operation.

In order to prevent effectively that welding rod from contacting the company's of generation electricity with conductive body, can prevent the rectangular boss 27 of the outside play of welding rod a side setting of insulator 16 front end upper surfaces, safe weld job guarantee so just can be provided, avoid taking place dangerous accident.

The lower pliers head plate that is pressed into copper coin no longer adopts flute profile, but slab construction can be saved non-ferrous metal copper, can further reduce manufacturing cost.

In order to reduce the temperature of stay pipe 23, can also be in handle assembly be fixed in stay pipe 23 walls on the insulator 16 interior week attach reflectance coating 10, can go back 60%-70% to the reflect radiation heat that cable produces, it intercepts the heat of cable resistance heat to stay pipe 23 radiation effectively, fundamentally improves the welding job condition.

In sum, by the structural innovative design of electrode holders, unique Wedge type pressuring line structure that its existing reduction heat is produced, the heat shield that trap heat conduction and radiation are arranged again, the temperature of taper knob 21 is reduced significantly, add the well-adapted conductive connecting element of selecting for use common used material to make, the manufacturing cost of a brand new is not high so the utility model provides, the Wedge type electrode holder of non-scald on hand during the continuous welding operation.

Claims

1, a kind of Wedge type electrode holder, comprise the control rod assembly that fits together, wiring assembly and handle assembly, it is characterized in that: the upper grip head plate that is pressed into copper coin in the described control rod assembly is fixed together by iron chair and control stick, the lower pliers head plate that is pressed into copper coin in the described wiring assembly is fixed on the insulator of described handle assembly by lower support iron plate, and make the beveled end of described lower pliers head plate and lower support iron plate and spring support iron plate be assembled in formation enclosure space in the same fixed frame, cable closely is pressed on the inclined-plane of lower pliers head plate and lower support iron plate by the wedge shape briquetting, the stay pipe periphery that is fixed on the insulator in the described handle assembly is passed through insulator fixed handle cover, between the contact-making surface of the end of described insulator and taper knob and insulator end heat insulating mattress is set.

2, Wedge type electrode holder according to claim 1 is characterized in that: a side on plane is provided with the boss that prevents the outside play of welding rod on the described insulator front end.

3, Wedge type electrode holder according to claim 1 is characterized in that: the described lower pliers head plate that is pressed into copper coin adopts slab construction.

4, Wedge type electrode holder according to claim 1 is characterized in that: the stay pipe afterbody that is fixed on the insulator in the described handle assembly is provided with expanded bore, between the afterbody contact-making surface of described expanded bore periphery and described taper knob heat insulation loop is set.

5, Wedge type electrode holder according to claim 1 is characterized in that: the interior week attaching reflectance coating that is fixed in the support tube wall on the insulator in the described handle assembly.