CN2235873Y - Electric welding pliers - Google Patents

Abstract

The utility model relates to a pair of novel electric welding tongs, which is composed of a clamping mechanism of welding rods, a handle and a joining opening of a power cord. The utility model is characterized in that the clamping mechanism comprises a moving piece and a fixing piece; an electric welding rod which is arranged between the moving piece and the fixing piece in the clamping mechanism can be firmly clamped by the pressure spring under a handle; the angle of the electric welding rod can be changed at any time by the thumb mouth between the moving piece and the fixing piece; the joining opening of a power cord adopts a clamping type to prevent the power cord is loose owing to bad contact and heating; besides, soft insulating materials are adopted to make that the utility model is not easy to crack by knock.

Description

Novel electrode holders

The utility model relates to a kind of welding tool, particularly a kind of electrode holders.

Known electrode holders, the pincers handle and rigid insulation shell three parts that are engaged mouth by folder formula jaw, band power line are formed.There is following defective in this electrode holders:

1, since folder formula jaw when clipping welding rod, jaw has the space, does not often tightly break away from jaw because of folder, if desire changes angle with welding rod, necessary two hand operateds press off jaw on the other hand, make the welding rod translation-angle on the other hand, make operator's utmost point sense inconvenience, also increased the chance that welding rod comes off.

2, the power line joint mouth of pincers handle end adopts the garden tubular type, and elder generation inserts the tubular joint mouth in garden with the copper core of power line during installation, again with in the iron plate insertion garden pipe, so as to pushing down the copper core, again from clamping two fixed screws of two screw precessions on the handle, by iron plate, the copper core is compressed.Adopt this juncture because the contact area of garden Guan Yutong core is little, add fixed screw since power line often pulling unscrew, cause garden Guan Yutong core loose contact easily and generate heat, even the generation power line phenomenon that gets loose.

3, insulation crust adopts the rigid plastics manufacturing, easily breaks because of strong collision.

The purpose of this utility model is to provide a kind of and can firmly welding rod be clamped, and need not to unclamp welding rod when changing the welding rod angle, and power line engages mouth can closely and securely connect the novel electrode holders that shell is difficult for breaking with power line.

The purpose of this utility model realizes by following technical proposal: a kind of novel electrode holders, form by the handle (6) of deciding part (3), tool forked link (5), stage clip (4), clamping power supply line joint mouthful (7) and the soft overcoat of insulation (23) of the groove (2) of each symmetry about metal U-shaped moving part (1), band.Wherein U-shaped moving part (1), by the push-and-pull of forked link, moves forward and backward in a pair of groove (2) of deciding part (3) front end under the effect of handle (6) and stage clip (4) by a pair of arm shape bar (8) that fuses with it, welding rod is compressed or gets loose; Engage the front end of mouthful (7) at the end of deciding part (3) and power line, utilize separately in correspondence with each other finger mouth (15) (16) and joint spiral shell axle (17), can change the front and rear angles of deciding part (3) arbitrarily; At the end of power line joint mouthful (7), there is the power line joint to refer to the copper core clamp mechanism of mouthful (18) and joint motion block (19) composition, both are connected by three interface screws (20), and the copper core of power line can be clamped; The insulation of handle (6) and electric source line interface (7) utilizes rubber or other soft overcoat (23) to realize.During use, earlier handle (6) is depressed, at this moment, because forked link (5) utilizes the supporting role of fulcrum piece (12), and U-shaped moving part (1) is pushed away the front end of deciding part (3), thereby at U-shaped moving part (1) and decide the space to occur between the part (3), just the head of welding rod can be inserted wherein, when release handle (6), under the elastic force effect of stage clip (4), forked link (5) just can retract U-shaped moving part (1) and the head of welding rod is pressed on U-shaped moving part (1) and decides between the part (3).If desire changes the angle of welding rod, but moving mouthful (15) (16) that refer to of plate make it change both angles.

Advantage of the present utility model is as follows:

1, owing to adopt the mode that compresses, welding rod is difficult for getting loose from electrode holders.

2, changing the welding rod angle is to decide part engages mouth with power line angle and realize by adjusting, and need not to unclamp welding rod, thereby has also reduced the chance that welding rod gets loose.

3, adopt clamped-in style to engage mouthful copper core of fixed power source line, make electrode holders and power line copper core that more contact area be arranged, both are difficult to generate heat or gets loose because of loose contact.

4, adopt rubber or other soft material to make insulating coating, make the insulation crust of electrode holders be difficult for breaking because of collision.

Below in conjunction with the description of the drawings and embodiment, the utility model will be further described.

Fig. 1 is main TV structure figure of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the front view of U-shaped moving part;

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

Fig. 5 is for deciding the front view of part;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7 is the left view of Fig. 5;

Fig. 8 engages the front view of mouth for power line;

Fig. 9 is the vertical view of Fig. 8;

Figure 10 is the right view of Fig. 8;

Figure 11 is for engaging the front view of motion block;

Figure 12 is the vertical view of Figure 11;

Figure 13 is the right view of Figure 11.

Embodiment:

A kind of novel electrode holders, by the handle 6 of deciding welding rod clamp mechanism, band stage clip 4 and forked link 5 that part 3 constitutes of the U-shaped moving part 1 of copper material manufacturing and tool left and right sides groove 2 and clamping power supply line engage mouthfuls 7 and rubber sleeve 23 form.Wherein, U-shaped moving part 1 is in foremost, each symmetrical arm shape bar 8 just in time is set in the left and right sides groove 2 respectively about fusing with it, be in state movingly, can move forward and backward therein, at the end of two arm shape bars 8, a symmetrical screw 22 is respectively arranged, at the inner face and the front end of deciding part 3 of U-shaped moving part 1, a corresponding welding rod ditch 9 is respectively arranged, 10, on the top of deciding part 3, the fulcrum piece 12 in a hole, tool garden 11 that fuses with it is arranged, forked link 5 and handle 6 fuse at an angle of 90, in the corner one screw hole 13 is arranged, at the end of forked link 5, about the screw connecting hole 14 of a symmetry is respectively arranged, stage clip 4 be installed in handle 6 middle parts below, handle 6 is withstood in the upper end of stage clip 4 from below, the other end is pushed down and decided part 3; Front end at rear end of deciding part 3 and power clip formula joint mouth 7, respectively there are a corresponding finger mouthful 15,16, two finger mouths 15,16 measure-alike, direction is opposite, after linking together by joint spiral shell axle 17, can make and decide part 3 and change angles, the power clip formula engages mouthfuls 7 rear end, refer to mouth 18 and engage motion block 19 form by joint, both link together by three interface screws 20, refer to the bottom of mouth 18 and the top of joint motion block 19 at joint, and one section corresponding garden arc groove 21 is respectively arranged.

During installation, two arm shape bars 8 about U-shaped moving part 1 are injected corresponding two respectively to be decided in the part groove 2, forked link 5 with handle 6 front ends, fork is firmly decided the arm shape bar 8 of part 3 and U-shaped moving part 1, and respectively with screw by the screw connecting hole 13 on the fulcrum piece 12, handle 6 is connected decides on the part 3, and forked link 5 is connected with two arm shape bars 8 about U-shaped moving part 1 respectively with screw, again stage clip 4 is installed in handle 6 and decides between the part 3, then by referring to mouth 15,16 usefulness joint spiral shell axles 17 engage mouthful 7 front ends with the clamping power supply line and are connected with the rear end of deciding part 3, to engage with three interface screws 20 at last and refer to mouth 18 and engage motion block 19 link together, before tightening up interface screw 20, earlier power line copper core is injected by engaging motion block 19 and engaging and refer to then interface screw 20 be tightened up in the hole, garden that mouthfuls 18 garden arc groove 21 forms.Before general assembly, the rubber sleeve 23 with handle 6 and joint mouth 7 puts respectively.

Claims (3)

1, a kind of novel electrode holders, by the welding rod clamp mechanism, handle (6), power line engages mouthful (7) and insulating coating (23) is formed, it is characterized in that about the U-shaped moving part (1) of the arm shape bar (8) of each symmetry about the welding rod clamp mechanism is by band and band that respectively the part (3) of deciding of the groove (2) an of symmetry is formed, arm shape bar (8) just in time is set in the groove (2), the front end of handle (6) is a forked link that fuses with it (5), the fulcrum piece (12) that a band hole, garden (11) is arranged on the top of deciding part (3), forked link (5) and handle (6) fuse at an angle of 90, one screw hole (13) is arranged in the corner, lower end in forked link (5), about the screw connecting hole (14) of a symmetry is respectively arranged, be connected with arm shape bar (8) by screw, at handle (6) with decide that a stage clip (4) is arranged between the part (3), deciding the front end that part (3) rear end and power line engage mouthful (7), corresponding finger mouthful (15) (16) are respectively arranged, two refer to the measure-alike of mouthful (15) (16), direction is opposite, after linking together by joint spiral shell axle (17), can make and decide part (3) change angle, power line engages mouthful (7) and engages mouth for the folder formula, refer to mouthful (18) and engage motion block (19) form by joint, both link together by three interface screws (20), refer to the bottom of mouthful (18) and the top of joint motion block (19) at joint, one section corresponding garden arc groove (21) is respectively arranged.The insulating coating (23) that engages the outside of mouthful (7) at handle (6) and clamping power supply line is with soft insulating materials manufacturing.

2, novel electrode holders according to claim 1 is characterized in that at the inner face of U-shaped moving part (1) and decide the front end of part (3), and a corresponding welding rod ditch (9) is respectively arranged.

3, novel electrode holders according to claim 1 is characterized in that handle (6) and power line engage mouthful (7) outside insulating coating (23), are to make of soft insulating materials.

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