CN1046305A

CN1046305A - The electrode holders of non-scald on hand

Info

Publication number: CN1046305A
Application number: CN 89105706
Authority: CN
Inventors: 胡五一; 张轩慧
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-04-15
Filing date: 1989-04-15
Publication date: 1990-10-24
Anticipated expiration: 2004-04-15
Also published as: CN1025828C

Abstract

The electrode holders of non-scald on hand belong to a kind of improvement of clipping alternating current-direct current manual metal-arc welding electrode holders.Because these electrode holders are provided with heat abstractor, and jaw internal clearance angle can regulate, so non-scald on hand when these electrode holders use, suitable welding scope increases, and has improved operating efficiency, has improved working condition.These electrode holders cost is not higher than existing electrode holders, and performance is better than existing electrode holders, and simple in structure, implements easily.Help popularizing.

Description

The electrode holders of non-scald on hand

The present invention relates to a kind of arc-welding apparatus.Be particularly related to a kind of improvement of alternating current-direct current manual metal-arc welding electrode holders.

Press the electrode holders of five kinds of specifications of 160A-500A of ministerial standard production at present.Owing to constructional reason.Welding rod in the only suitable clamping certain specification diameter range of a kind of electrode holders of specification.For example.300A electrode holders commonly used at present.Only suitable clamping diameter is the welding rod of 2.5-5.0mm.The only suitable clamping diameter of 500A electrode holders is the welding rod of 4.0-8.0mm.So just give in the work and brought inconvenience.The electrode holders of all size.By its rated load.The peak of its handle surfaces temperature rise is no more than 50 ℃ for qualified, but in actual use.Owing to reasons such as temperature and weld intervals.The temperature of handle surfaces often makes the operator feel hot.Thereby operating efficiency and working condition have been influenced.This mainly is because big electric current generates heat during by the copper staight shank.Due to handle is transmitted by its heat to influence.The Dian Han of domestic market and outlet is this situation basically now.

Above-mentioned deficiency at present Dian Han the object of the present invention is to provide a kind of non-scald on hand.The Dian Han that applicability is wide.Increase work efficiency.Improve working conditions.

The present invention is achieved like this.The why temperature rise of existing Dian Han handle.Be because garden tubular bakelite handle inner face has the very high electric conductor of temperature to pass through.Comprise copper staight shank and cable.There is holding of operator the outside.Handle too seals.Not only heating surface is big.Radiating surface is little.Be unfavorable for distributing of internal heat.Also be subjected to the heat conduction of copper staight shank.And the heat abstractor that the present invention partly establishes at handle and the copper staight shank of Dian Han .Then can improve this situation.Thereby operator's feel temperature is reduced.It is by offering louvre at handle portion.Also can suitably reduce having the U-shaped top end face that the handle front upper has now.Make it littler more than 20 percent than the external diameter of handle lower front half garden tube from the distance of handle garden axis.Help distributing inner heat like this.Reduce the temperature of copper staight shank.Reduce handle heating surface area and received heat.The operator can also regulate the cable screw easily by the bottom surface louvre.When operating current less.When temperature is low.The temperature of handle can warm up hand and non-scald on hand.When operating current is big.Or temperature is when higher.Working time is when longer.Can add a handle jacket tube that offers louvre at handle portion.One heat radiation gap is arranged between it and the handle.Part fastening with screw and contact is provided in a side of the minimum tail end of handle temperature.For reducing thermal-radiating influence.Can in handle and handle jacket tube gap； establish the bright and smooth material in a surface.It can be a flake aluminum.Also can electroplate or vacuum aluminum-coated at handle jacket tube inner face.Tighten handle jacket tube holding screw then.The operator will reduce greatly to the feel temperature of handle.Because a heat radiation gap is arranged between handle and the handle jacket tube.Helping air flows.Strengthened area of dissipation.And reduced hot conduction.Thermal-radiating influence.Handle, handle jacket tube are not offered louvre also can make operator's feel temperature reduce.Because copper staight shank and handle temperature reduce.The current range that original copper staight shank can pass through increases.So this Dian Han can suitably reduce copper staight shank conductive cross-sectional area.Thereby saving copper material.Also can improve having Dian Han De notch portion now.The scope that makes it suitable clamping core diameter increases.Correspondingly increased working range.More convenient operation.Improved efficient.The existing Dian Han why scope of suitable clamping core diameter is little.Shi You Yu mouth is when clamping welding rod not.Gap angle in the mouth between copper tongue lower surface and the copper staight shank upper surface is fixed.And this Dian Han De mouth internal clearance angle can be regulated according to operator's needs.So the scope of suitable clamping welding rod increases.

The invention has the advantages that.Setting up of heat abstractor.Can save a large amount of copper materials.And handle non-scald on hand.Thereby improved operating efficiency.Improved working condition.Be suitable for improvement to existing all size Dian Han .While is owing to heat abstractor setting up.The electric current that makes onesize copper staight shank to pass through increases.Therefore preferably again Dian Han De notch portion is improved.Make it the welding rod of clamping all size diameter.Cable connecting hole diameter is also suitably greater than 14.7mm.Thereby correspondingly enlarged the working range of Dian Han .Light being suitable for.Simple in structure.The cost of material is low.Implement easily.Help popularizing.

Below in conjunction with accompanying drawing the present invention is described in further detail.

The non-scald on hand Dian Han structure chart of figure 1 Shi mouth internal clearance adjustable included angle joint.

Fig. 2 is the structure chart of straight shape copper tongue

Fig. 3 is low early and high after domatic copper tongue structure chart

Fig. 4 is the structure chart of the low domatic copper tongue in preceding high back

Fig. 5 be the copper tongue be conditioned screw regulated after De mouth interior shape figure

Fig. 6 is the gap angle De mouth interior shape figure that adopts between domatic copper tongue adjusting copper tongue bottom face and the copper staight shank upper surface

Fig. 7 is the front view of the Dian Han handle arrangement of this non-scald on hand

Fig. 8 is the vertical view of the Dian Han handle front portion structure of this non-scald on hand

Fig. 9 is the handle jacket barrel structure figure that offers louvre

Mark in the accompanying drawing is:1 mouth upper encloser 2, upper encloser holding screw 3, copper tongue 4, set screw 5, iron is curved 6, pin 7, iron is curved case 8, copper staight shank 9, curved holding screw 10, spring 11, little bowl 12, jorum 13, cable pressing plate 14, handle 15, handle jacket tube 16, handle jacket tube louvre 17, handle heat radiation gap 18, handle jacket tube holding screw 19, cable screw 20, handle bottom surface louvre 21, handle holding screw 22 mouth lower enciosers 23 mouth lower encioser holding screws 24, the fastening screw 25 of copper tongue, handle side louvre 26, handle jacket tube fixing hole 27, handle fastener hole 28, the U-shaped top end face 29 of handle front upper, the U-shaped top end face of handle front upper is from the distance 30 of handle garden tube axis, the external diameter 31 of handle lower front half garden tube, handle jacket tube reinforcement 32, handle jacket tube fixing hole 1.33, handle jacket tube fixing hole 2.

Set up a hole referring to Fig. 1; Facing on copper tongue (3) the rearward end top De mouth upper encloser (1) .Setting up a screw again on the iron below this hole curved (7) is connected in the hole therewith.In these two straight-through holes; Insert a set screw (4); regulate this set screw ( 4 ) downwards.Copper tongue ( 3 ) rear portion can be depressed.Become state shown in Figure 5 by Fig. 1 state.Thereby make Dian Han not clamping welding rod Shi mouth internal copper tongue ( 3 ) bottom face Yu in the mouth gap angle between copper staight shank ( 8 ) upper surface change.In use should note earlier upper encloser holding screw ( 2 ) semi-coast.Again that it is fastening after waiting to regulate.Dian Han not clamping welding rod Shi mouth internal copper tongue ( 3 ) bottom face Yu the adjusting of the gap angle between the copper staight shank upper surface in the mouth.Also can not adopt set screw ( 4 ) and directly combine and regulate with different straight shape copper tongue of several thickness and domatic copper tongue.To obtain different gap angles.Fig. 6 adopts domatic copper tongue to change above-mentioned gap angle De mouth cut-away view.A kind of specific embodiment at the handle front upper U-shaped top end face ( 28 ) of Fig. 7 and Fig. 8.Be that top end face position with jorum ( 12 ) next door arc is reduced by height and slips over to cross with the straight shape top end face garden of taking and combines.The alleged handle of the present invention front portion is meant an end of handle Kao Jin mouth direction.The other end then is a tail end.The handle jacket tube can be made of the material of hear resistance and good rigidly among Fig. 9.Preferably adopt the mould for thermosets compacting to make.The handle jacket tube is connected with handle.Can rivet or bonding.Preferably adopt screw to be fastenedly connected.Nut is embedded on the handle.The using method that is fastenedly connected with screw is: if non-scald on hand.Handle jacket tube fixing hole 1 ( 32 ) fixing.Make the handle front portion leave certain distance with handle jacket tube front portion.State as shown in Figure 1.If weather is colder.Need warm hand.Detachable lower handle outer sleeve.Perhaps back-out screw ( 18 ) with handle jacket tube Rotate 180 degree.Bing advances Xiang mouth direction.Handle jacket tube and handle front portion is contacted.Align fixing hole 2 ( 33 ) tighten the screws ( 18 ) .Operator's feel temperature will be higher.When implementing, it is also noted that: the 160A-500A non-scald on hand Dian Han that adopts this heat abstractor.Its copper staight shank conductive cross-sectional area reduced more than 20% than originally.If but make the general Dian Han of the wide non-scald on hand of applicability.Its copper staight shank conductive cross-sectional area is preferably suitably greater than 95.2mm.Cable connecting hole diameter is also more preferably greater than 14.7mm.

Claims

1, a kind of electrode holders of non-scald on hand comprise that handle (14) is characterized in that, are provided with heat abstractor in described handle (14) part.

2, by the electrode holders of claim 1 regulation, it is characterized in that, offer louvre in described handle (14) part.

3, by claim 1,2 electrode holders of stipulating, it is characterized in that the U-shaped top end face (28) that has in described handle (14) front upper is littler more than 20% than described handle (14) lower front half garden tube external diameter (30) from the distance (29) of handle garden tube axis.

4, by the electrode holders of claim 1,2,3 regulations, it is characterized in that, be provided with handle jacket tube (15) in handle (14) part.

5, by the electrode holders of claim 4 regulation, it is characterized in that, on the handle jacket tube, offer louvre.