CN217913348U - Novel electrode holder - Google Patents

Abstract

The utility model relates to a novel electrode holder, which comprises a handle and a lead wire which is connected with the handle in an insulating way, and is characterized by also comprising three conductive clamping rods which are fixedly connected with one end of the handle in an insulating way, wherein the conductive clamping rods are connected and welded with the lead wire in an electrically conductive way, and three straight lines where the three conductive clamping rods are positioned are mutually crossed; when the three conductive clamping rods clamp the welding electrode, the gap between the planes determined by one conductive clamping rod positioned on one side of the welding electrode, the rest two conductive clamping rods positioned on the other side of the welding electrode and the free ends of the conductive clamping rods positioned on one side of the welding electrode and the two conductive clamping rods positioned on the same side of the welding electrode is larger than the diameter of the welding electrode. The utility model aims at providing a need not open and press from both sides the novel electrode holders that can centre gripping welding electrode promptly, the electrode holders who has solved needs need open and press from both sides just can the problem of centre gripping welding electrode.

Description

Novel electrode holder

Technical Field

The utility model relates to an electric welding pliers especially relates to a novel electric welding pliers.

Background

The Chinese utility model patent publication of 2008, 7/30/month discloses a stick-shaped three-point electrode holder (patent No. 200720013447.8), which mainly comprises: the front section of the electrified guide rod of the electrode holder is provided with a forked clamping jaw with two clamping surfaces, the back of the electrified guide rod is provided with a support lug, the back of the support lug is provided with a pin sleeved with a spring, the outside of the front section of the electrified guide rod is coated with an insulating material shell, the back section of the electrified guide rod is positioned in a handle, the front part of the back section of the electrified guide rod is provided with a screw hole in which a fastening pin is arranged, the back of the fastening pin is provided with a fastening piece for connecting a cable with the electrified guide rod, the middle part of the movable pressing rod is provided with the support lug corresponding to the electrified guide rod, the shaft holes of the support lug and the pin are provided with pin shafts, a pressing rod which is coated outside the metal clamping jaw and extends to the groove opening on the handle is provided with a groove hole at the other end of the spring at a position opposite to the pin of the electrified guide rod, and the back of the pressing rod is provided with a through hole. It has the following disadvantages: 1. because the movable pressure lever of the electrode holder is a lever taking the support lug as an axis, the higher the back is, the lower the front end is, when a welding rod is not clamped, the spring behind the support lug is in a relaxed high-top state, and thus the front end of the metal clamping jaw connected with the movable pressure lever is the lowest and falls below the plane of the fork-shaped clamping jaw of the lower electrified guide rod. The welding rod is clamped at the upper side of the plane of the fork-shaped clamping jaw, so that the welding rod is forcedly pressed at the back high position of the movable pressure rod when clamped, and the welding pliers are laboursome for initially clamping the welding rod because the welding pliers do not have a high-pressure handle as a moment. 2. The front end of the support lug of the electrode holder is too low, and the back of the support lug is too high, so that the distance between the movable pressure rod positioned at the spring part and the insulating cover outside the electrified guide rod is too large, fingers can touch the electrified spring, and the safety verification standard of national electrical products is not met. If the thickness of the movable pressure lever is increased downwards, namely the spring slot is increased, or the thickness of the insulation cover of the electrified guide rod is increased upwards, when a welding rod is clamped, the two parts are firstly pushed, the spring cannot work, and the welding tongs cannot be used. 3. At present, the electrifying guide rods of various electrode holders all adopt copper materials with good electric conductivity, but when the electrode holders are used, electric discharge can be generated between welding rods and the electrode holders, the copper is not resistant to electric arc striking, the welding rod parts of the electrode holders are punched to be uneven, and the service life of the electrode holders is shortened. Therefore, the electrode holders disclosed in the patent document with the Chinese patent number of 201010259559.8 are designed. When the welding electrode is fixed by the existing electric welding machine, the clamp needs to be opened firstly, and then the clamping force is loosened to clamp the welding electrode.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a need not open and press from both sides novel electrode holders that can centre gripping welding rod promptly, the electrode holders who has solved needs need open and press from both sides just can the problem of centre gripping welding rod.

The technical problem is solved by the following technical scheme: the novel electrode holder comprises a handle and a lead which is connected with the handle in an insulated manner, and is characterized by further comprising three conductive clamping rods, one ends of the three conductive clamping rods are fixedly connected with the handle in an insulated manner, the conductive clamping rods are connected and welded with the lead in a conductive manner, and three straight lines where the three conductive clamping rods are located are mutually crossed; when the three conducting clamping rods clamp the welding electrode, the gap between the planes defined by one conducting clamping rod on one side of the welding electrode, the other two conducting clamping rods on the other side of the welding electrode, the free ends of the conducting clamping rods on one side of the welding electrode and the two conducting clamping rods on the same side of the welding electrode is larger than the diameter of the welding electrode. When in use, the welding electrode is clamped among the three conductive clamping rods and is clamped by the three conductive clamping rods. The free end of the conductive clamping rod positioned on one side of the welding rod fixed by the conductive clamping rod and the gap between the planes determined by the two conductive clamping rods positioned on the same side of the welding rod fixed by the conductive clamping rod are larger than the diameter of the welding rod, and the welding rod is inserted between the free ends of the conductive clamping rods and then moves down to the deformation generated by the conductive clamping rods to clamp the welding rod without the clamping action. The angle that this technical scheme electric welding rod can more need inserts and to grasp between the electrically conductive supporting rod can, the fixed angle of electric welding rod can be continuously adjustable as required.

Preferably, three of the conductive clamping bars are located on three edges of a triangular pyramid, and the cross-sectional area of the triangular pyramid is gradually increased from one end close to the handle to the other end. The components are compact.

Preferably, the cross section of the triangular pyramid is an isosceles triangle; when the three conductive clamping rods fix the welding rod, the conductive clamping rods forming two end points of the bottom edge of the isosceles triangle are positioned at the same side of the welding rod. The reliability when the welding rod is clamped is good.

The utility model discloses still be equipped with the shielding plate that fire-retardant material preparation formed, the handle is equipped with the portion of gripping, the shielding plate is located between portion of gripping and the electrically conductive supporting rod. Can shelter from the protection to the staff of gripping handle, the spark that produces when avoiding electric welding drops on the hand. The safety is good.

Preferably, one end of the shielding plate is connected with one end of the extending plate, the other end of the extending plate is located on one side, facing the holding part, of the shielding plate, and the extending plate is made of fireproof materials; when one end of the welding rod is fixed by the conductive clamping rod, the other end of the welding rod and the extension plate are positioned on the same side of the conductive clamping rod. The reliability of safety protection and the compactness of the structure can be considered at the same time.

Preferably, the handle is provided with a threaded column, a supporting step is formed between the threaded column and the handle, the shielding plate is sleeved on the threaded column, the threaded column is connected with a clamping nut in a threaded mode, and the clamping nut is matched with the supporting step to clamp the shielding plate so as to fix the shielding plate and the handle together. The installation and the disassembly of the baffle plate are convenient.

Preferably, a blade extending along the extending direction of the conductive clamping rod is arranged on one side of the conductive clamping rod, which is in contact with the welding rod; when the conductive clamping rod is used for fixing the welding rod, the blade cuts into the welding rod, so that the welding rod is prevented from rotating relative to the conductive clamping rod. The reliability when maintaining the welding rod angle is good.

Preferably, an air inlet channel and an air outlet channel are arranged in the conductive clamping strip, an inlet of the air inlet channel is communicated with the air inlet main port, the air inlet channel and the air outlet channel both extend from one end to the other end of the conductive clamping strip, an outlet of the air inlet channel is communicated with an inlet of the air outlet channel through a communication channel positioned in the conductive clamping strip, and an outlet of the air outlet channel is positioned on the end face of one end, connected with the handle, of the conductive clamping rod; carry out the in-process of electric welding, blow in cooling gas towards the air inlet in the main mouthful through the air-blower, the cooling gas that blows in flows through inlet channel in proper order and gives vent to anger the export outflow of passageway from giving vent to anger behind the passageway to the realization leads to electrically conductive clamping rod's cooling, and the temperature rise of electrically conductive clamping rod leads to electrically conductive clamping rod to lose the effective fixed to the welding electrode when preventing electric welding. The phenomenon that the conductive clamping rod cannot be reliably fixed due to the fact that the clamping force is reduced due to overhigh temperature rise can be avoided.

Preferably, a conductive sleeve is arranged in the handle, the conductive clamping rod is conductively welded in the conductive sleeve in a sealing mode, the conductive clamping rod surrounds an air cavity in the conductive sleeve, the air cavity is provided with an air inlet nozzle, the air inlet nozzle is connected with an air inlet main port through a hose, and the conducting wire penetrates through the handle and is fixedly connected with the conductive sleeve. And meanwhile, the blowing is convenient for the three-more conductive clamping rods.

The utility model has the advantages of that: the free end of the conductive clamping rod positioned on one side of the welding rod fixed by the conductive clamping rod and the clearance between the planes determined by the two conductive clamping rods positioned on the same side of the welding rod fixed by the conductive clamping rod are larger than the diameter of the welding rod, and the welding rod is inserted from the free end of the conductive clamping rod and then moves down to the deformation generated by the conductive clamping rod to clamp the welding rod without opening and clamping; the fixed angle of the welding rod can be continuously adjusted according to the requirement; the cooling can be carried out to prevent the phenomenon that the clamping force is reduced and transited to cause clamping failure due to overhigh temperature rise of the conductive clamping strip.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

FIG. 2 is a schematic view illustrating a usage status of the first embodiment;

FIG. 3 is a partial schematic view illustrating a second embodiment of a device in use;

fig. 4 is a schematic view of a second embodiment of the present invention in a use state;

fig. 5 is a partially enlarged schematic view of a portion B of fig. 4.

In the figure: the welding electrode holder comprises a handle 1, a lead 2, a conductive clamping rod 3, a conductive clamping rod 4, a welding electrode 5, a shielding plate 6, a holding part 7, an extension plate 8, a conductive clamping rod 9, a cutting edge 10, an air inlet channel 20, an air outlet channel 21, an air inlet channel inlet 22, an air inlet main port 23, a communication channel 24, a conductive sleeve 25, a welding block 26, an air outlet cavity 27, an air inlet nozzle 28, a hose 29, a threaded column 30, a clamping nut 31 and an air outlet channel outlet 32, wherein the conductive clamping rod 4 forms two end points of the bottom edge of an isosceles triangle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the novel electrode holder comprises a handle 1, a conducting wire 2 and three conductive clamping rods 3, wherein one end of each conductive clamping rod is fixedly connected with the handle in an insulating mode. The handle is of an insulating structure, so that the wire and the handle are connected together in an insulating mode. The conducting wire is arranged in the handle in a penetrating way. The conductive clamping rods are connected with the conducting wires in a conductive mode, and three straight lines where the three conductive clamping rods are located are mutually crossed. The three conductive clamping rods are positioned on three edges of a triangular pyramid, and the cross-sectional area of the triangular pyramid is gradually increased from one end close to the handle to the other end. The cross section of the triangular pyramid is an isosceles triangle; when the three conductive clamping rods are used for fixing the welding electrode, the two conductive clamping rods 4 which form two end points of the bottom edge of the isosceles triangle are positioned at the same side of the welding electrode 5 fixed by the conductive clamping rods. The utility model discloses still be equipped with shielding plate 6 that fire-retardant material preparation formed, the handle is equipped with portion of gripping 7, and shielding plate is located between portion of gripping and the electrically conductive supporting rod. One end of the shielding plate is connected with one end of the extending plate 8, the other end of the extending plate is positioned on one side of the shielding plate facing the holding part, and the extending plate is made of fireproof materials; when one end of the welding rod is fixed by the conductive clamping rod, the other end of the welding rod and the extension plate are positioned on the same side of the conductive clamping rod.

When in use, the welding rod is clamped among the three conductive clamping rods and is clamped by the three conductive clamping rods; when the three conductive clamping rods clamp the welding electrode, one conductive clamping rod is positioned at one side of the welding electrode, and the rest two conductive clamping rods are positioned at the other side of the welding electrode; when in use, the free end of the conducting clamping rod 9 positioned on one side of the welding rod and the plane defined by the two conducting clamping rods positioned on the same side of the welding rod form a gap which is larger than the diameter of the welding rod.

The second embodiment is different from the first embodiment in that:

referring to fig. 3, a blade 10 extending along the extending direction of the conductive clamping rod is arranged on one side of the conductive clamping rod contacting with the welding rod; when the electrode is held by the conductive clamping rod, the blade cuts into the electrode, thereby preventing the electrode from rotating relative to the conductive clamping rod.

The third embodiment is different from the first embodiment in that:

referring to fig. 4 and 5, the conductive holding strip is provided with an inlet channel 20 and an outlet channel 21, an inlet 22 of the inlet channel is communicated with an inlet header 23, and the inlet channel and the outlet channel both extend from one end of the conductive holding strip to the other end. The outlet of the air inlet channel is communicated with the inlet of the air outlet channel through a communication channel 24 positioned in the conductive clamping strip, and the outlet 32 of the air outlet channel is positioned on the end surface of one end of the conductive clamping rod connected with the handle; the handle is provided with a conductive sleeve 25, and the conductive clamping rod is conductively and hermetically welded in the conductive sleeve to form a welding block 26, so that an air cavity 27 is enclosed in the conductive sleeve by the conductive clamping rod. The air cavity is provided with an air inlet nozzle 28 which is connected with an air inlet main port through a hose 29, and an inlet of an air inlet channel is arranged on the end surface of the conductive clamping rod and is communicated with the air outlet cavity, so that the connection with the air inlet main port is realized. The lead 2 is arranged in the handle in a penetrating way and welded with the conductive sleeve. The handle is made of insulating materials and is formed by combining two halves. The part of the conductive sleeve protruding out of the end face of the handle is provided with an external thread to form a threaded column 30, a supporting step is formed between the threaded column and the handle, the shielding plate is sleeved on the threaded column, the threaded column is in threaded connection with a clamping nut 31, and the clamping nut is matched with the supporting step to clamp the shielding plate so as to fix the shielding plate and the handle together.

Carry out the in-process of electric welding, blow in cooling gas towards the air inlet in the main mouthful through the air-blower, the cooling gas that blows in flows through inlet channel in proper order and gives vent to anger the export outflow of passageway from giving vent to anger behind the passageway to the realization leads to electrically conductive clamping rod's cooling, and the temperature rise of electrically conductive clamping rod leads to electrically conductive clamping rod to lose the effective fixed to the welding electrode when preventing electric welding.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The novel electrode holder comprises a handle and a lead which is connected with the handle in an insulated manner, and is characterized by further comprising three conductive clamping rods, one ends of the three conductive clamping rods are fixedly connected with the handle in an insulated manner, the conductive clamping rods are connected and welded with the lead in a conductive manner, and three straight lines where the three conductive clamping rods are located are mutually crossed; when the three conductive clamping rods clamp the welding electrode, one conductive clamping rod is positioned at one side of the welding electrode, and the rest two conductive clamping rods are positioned at the other side of the welding electrode; when the electrode holder is clamped, the gap between the free ends of the conductive clamping rods positioned on one side of the welding electrode and the plane determined by the two conductive clamping rods positioned on the same side of the welding electrode is larger than the diameter of the welding electrode.

2. A novel electrode holder according to claim 1 wherein three of said electrically conductive holding rods are located on three edges of a triangular pyramid having a cross-sectional area that increases from one end adjacent the handle to the other end.

3. A novel electrode holder as claimed in claim 2, wherein the triangular pyramid has a cross section of an isosceles triangle; when the three conductive clamping rods fix the welding rod, the conductive clamping rods forming two end points of the bottom edge of the isosceles triangle are positioned at the same side of the welding rod.

4. A novel pair of electrode holders as claimed in claim 1, 2 or 3, characterized by further comprising a shielding plate made of a flame retardant material, wherein the handle is provided with a holding portion, and the shielding plate is located between the holding portion and the conductive clamping rod.

5. A novel electrode holder as claimed in claim 4, wherein one end of the shielding plate is connected with one end of the extending plate, the other end of the extending plate is located on the side of the shielding plate facing the holding portion, and the extending plate is made of fireproof material; when one end of the welding rod is fixed by the conductive clamping rod, the other end of the welding rod and the extension plate are positioned on the same side of the conductive clamping rod.

6. A novel electrode holder as claimed in claim 4, characterized in that the handle is provided with a threaded post, a support step is formed between the threaded post and the handle, the shielding plate is sleeved on the threaded post, the threaded post is in threaded connection with a clamping nut, and the clamping nut is matched with the support step to clamp the shielding plate so as to fix the shielding plate and the handle together.

7. The novel electrode holder as claimed in claim 1, 2 or 3, wherein a blade extending in the extending direction of the conductive holding rod is provided on the side of the conductive holding rod contacting the electrode; when the conductive clamping rod is used for fixing the welding rod, the blade cuts into the welding rod, so that the welding rod is prevented from rotating relative to the conductive clamping rod.

8. A novel electrode holder according to claim 1, 2 or 3 wherein an inlet channel and an outlet channel are provided in the electrically conductive clamping bar, the inlet of the inlet channel is connected to the inlet manifold, both the inlet channel and the outlet channel extend from one end of the electrically conductive clamping bar to the other end, the outlet of the inlet channel is connected to the inlet of the outlet channel via a connecting channel provided in the electrically conductive clamping bar, and the outlet of the outlet channel is provided on the end face of the end of the electrically conductive clamping bar connected to the handle.

9. A novel pair of electrode holders as claimed in claim 8, characterized in that a conductive sleeve is provided in the handle, a conductive clamping rod is conductively and hermetically welded in the conductive sleeve, the conductive clamping rod isolates a gas outlet cavity in the conductive sleeve, the gas cavity is provided with a gas inlet nozzle, the gas inlet nozzle is connected with a gas inlet main port through a hose, and the lead is inserted in the handle and is fixedly connected with the conductive sleeve.

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