CN218612177U

CN218612177U - Three-grab fixing mechanism convenient for maintenance type welding rod

Info

Publication number: CN218612177U
Application number: CN202221698611.4U
Authority: CN
Inventors: 姜松涛; 裘海炳; 余健; 李兴俊; 姜慧慧; 杨凯文; 林钰婧; 吴其贝; 谢星宇; 谢天宇; 郑赟
Original assignee: Jiaxing Nanyang Polytechnic Institute
Current assignee: Jiaxing Nanyang Polytechnic Institute
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-03-14
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to a fixed establishment is grabbed to three of formula welding rod convenient to maintain, including the handle, be equipped with the conductive sleeve in three electrically conductive supporting rods of wire and the handle that links together with the handle insulatingly, three electrically conductive supporting rods rigid coupling are electrically conductive simultaneously on the thread head, are equipped with the internal thread on the inner peripheral surface of conductive sleeve, thread head threaded connection on the internal thread and with electrically conductive supporting rod fixed together with conductive sleeve conductively, the direction with conductive sleeve is fixed together conductively, and the welding electrode card is three between the electrically conductive supporting rod and by three electrically conductive clamping rod centre gripping is fixed. The invention aims to provide a maintenance-convenient welding rod three-grab fixing mechanism capable of clamping a welding rod without clamping, and solves the problem that the welding rod can be clamped only by a needed electrode holder without clamping.

Description

Three-grab fixing mechanism convenient for maintenance of welding rod

Technical Field

The invention relates to electrode holders, in particular to a three-grip fixing mechanism for welding rods, which is convenient to maintain.

Background

In the chinese utility model patent publication No. 2008, 30/7, a stick-shaped three-point electrode holder is disclosed (patent No. 200720013447.8), which comprises the following main contents: the front section of the electrified guide rod of the electrode holder is provided with a fork-shaped clamping jaw with two clamping surfaces, the rear section of the electrified guide rod is provided with a support lug, the rear part 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 rear section of the electrified guide rod is positioned in the handle, the front part of the rear section of the electrified guide rod is provided with a screw hole in which a fastening pin is arranged, the rear part 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, a pin shaft is arranged in the shaft hole of the support lug and the support lug, the pressing rod which is coated outside the metal clamping jaw and extends to the notch on the handle is provided with a groove hole at the other end of the spring at the position opposite to the pin of the electrified guide rod, and the rear part of the pressing rod is provided with a through hole opposite to the pin of the electrified guide rod. It has the following disadvantages: 1. because the movable pressure lever of the electrode holder is a lever with a support lug as an axis, the higher the back, the lower the front end, and when the electrode is not clamped, a spring at the back of the support lug is in a relaxed high-top state, so that the front end of a metal clamping jaw connected with the movable pressure lever is the lowest and falls below the plane of a fork-shaped clamping jaw of the lower electrifying guide rod. The welding rod is clamped at the position above the plane of the fork-shaped clamping jaw, so that the welding rod can be clamped by forcibly pressing the high-rising position behind the movable pressure rod. 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.

Disclosure of Invention

The invention aims to provide a convenient-to-maintain welding rod three-grab fixing mechanism capable of clamping a welding rod without clamping, and solves the problem that the welding rod can be clamped only by a needed welding clamp without clamping.

The technical problem is solved by the following technical scheme: the utility model provides a fixed establishment is grabbed to formula welding rod three convenient to maintain, includes the handle and links together with the handle insulatingly, its characterized in that still includes three electrically conductive supporting rods, be equipped with the electric sheath in the handle, three electrically conductive clamping rods electrically conductive ground rigid couplings are on the screw thread head simultaneously, are equipped with the internal thread on the inner peripheral surface of electric sheath, screw thread head threaded connection on the internal thread and with electrically conductive supporting rod fixed together with the electric sheath conductively, the wire with the electric sheath is fixed together conductively, the welding electrode card is in three between the electrically conductive supporting rod and by three electrically conductive clamping rod centre gripping is fixed. When in use, the welding electrode 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; the gap between the free end of the conductive clamping rod on one side of the welding electrode fixed by the conductive clamping rod and the plane determined by the two conductive clamping rods on the same side of the welding electrode fixed by the conductive clamping rod is larger than the diameter of the welding electrode. 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. The conductive clamping rod is provided with a threaded head which is connected in the conductive sleeve in a threaded manner, and can be conveniently disassembled to be replaced and maintained.

Preferably, three conductive clamping bars are positioned on three edges of a triangular pyramid; 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 welding rod clamping device is used, the gap between the free end of the conducting clamping rod 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 is larger than the diameter of the welding rod. The components are compact. The welding rod is inserted from the free end of the conductive clamping rod and then moves downwards to the deformation generated by the conductive clamping rod to clamp the welding rod, and the clamping action is not needed.

Preferably, 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 conductive clamping rods forming two end points of the bottom edge of the isosceles triangle are positioned on the same side of the welding electrode. The reliability is good when the welding rod is clamped.

The invention is also provided with a shielding plate made of flame retardant material, the handle is provided with a holding part, and the shielding plate is positioned between the holding part and the conductive clamping rod. Can shelter from the protection to the staff that grips and receive the handle, the spark that produces when avoiding the 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 both considered.

Preferably, the conductive sleeve output handle is provided with an external thread to form 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 in threaded connection with a clamping nut, the clamping nut is matched with the supporting step to clamp the shielding plate, so that the shielding plate and the handle are fixed together, and the shielding plate is of an insulating structure. 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.

The invention has the following advantages: 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 welding rod can be inserted between the conductive clamping rods at a more required angle to be clamped, and the fixed angle of the welding rod can be continuously adjusted as required; the conductive clamping rod can be detached, and the maintenance is convenient.

Drawings

FIG. 1 is a schematic view illustrating a usage status of a first embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partial schematic view of a use state of the second embodiment.

In the figure: the welding rod comprises a handle 1, a lead 2, a conductive clamping rod 3, a conductive clamping rod 4, a welding rod 5, a shielding plate 6, a holding part 7, an extension plate 8, a conductive clamping rod 9, a cutting edge 10, a conductive sleeve 25, a threaded head 26, a threaded column 30 and a clamping nut 31, 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 clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a three-grip fixing mechanism for a welding rod, which is convenient to maintain, comprises a handle 1, a conducting wire 2 and three conducting clamping rods 3. The handle is of an insulating structure, and the conducting wire penetrates through the handle. The handle is provided with a conductive sleeve 25. The three-bar electrically conductive clamping bar is simultaneously electrically conductively fastened, in particular welded, to the threaded head 25. The inner circumferential surface of the conductive sleeve is provided with internal threads, and the thread head is connected with the internal threads in a threaded manner so as to fix the conductive clamping rod and the conductive sleeve together in a conductive manner. 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 fix the welding electrode 5, 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 fixed by the conductive clamping rods. The invention is also provided with a baffle plate 6 made of flame retardant material, and the baffle plate is made of insulating material. The handle is provided with a holding part 7, and the shielding plate is positioned between the holding part and the conductive clamping 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. The lead 2 is arranged in the handle in a penetrating way and is welded and fixed 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.

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; in use, the free end of the conductive clamping rod 9 on one side of the electrode is spaced from the plane defined by the two conductive clamping rods on the same side of the electrode by a distance greater than the diameter of the electrode.

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

referring to fig. 3, a cutting edge 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.

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

1. The utility model provides a fixed establishment is grabbed to formula welding rod three convenient to maintain, includes the handle and links together with the handle insulatingly, its characterized in that still includes three electrically conductive supporting rods, be equipped with the electric sheath in the handle, three electrically conductive clamping rods electrically conductive ground rigid couplings are on the screw thread head simultaneously, are equipped with the internal thread on the inner peripheral surface of electric sheath, screw thread head threaded connection on the internal thread and with electrically conductive supporting rod fixed together with the electric sheath conductively, the wire with the electric sheath is fixed together conductively, the welding electrode card is in three between the electrically conductive supporting rod and by three electrically conductive clamping rod centre gripping is fixed.

2. The three-grab fixing mechanism for welding rod convenient to maintain as claimed in claim 1, wherein three conductive clamping rods are located on three edges of a triangular pyramid; 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 electric welding rod clamping device is used, the gap between the free end of the electric conducting clamping rod positioned on one side of the electric welding rod and the plane defined by the two electric conducting clamping rods positioned on the same side of the electric welding rod is larger than the diameter of the electric welding rod.

3. The three-grab fixing mechanism for the welding rod convenient to maintain as claimed in claim 2, wherein 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.

4. The three-grab fixing mechanism for welding rods convenient to maintain as claimed in claim 1, 2 or 3, wherein a shielding plate made of flame retardant material is further provided, the handle is provided with a holding part, and the shielding plate is positioned between the holding part and the conductive clamping rod.

5. The conveniently maintained welding rod three-grab fixing mechanism according to 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 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.

6. The convenient-to-maintain welding rod three-grab fixing mechanism for the welding rod as claimed in claim 4, wherein the conductive sleeve output handle is partially provided with an external thread to form a threaded column, a supporting step is formed between the threaded column and the handle, the shielding plate is sleeved on the threaded column, a clamping nut is connected to the threaded column in a threaded manner, the clamping nut is matched with the supporting step to clamp the shielding plate to fix the shielding plate and the handle together, and the shielding plate is of an insulating structure.

7. The three-grip fixing mechanism for the welding rod convenient for maintenance as defined in claim 1, 2 or 3, wherein a blade extending along the extending direction of the electrically conductive holding rod is provided on the side of the electrically conductive holding rod contacting with the welding rod; when the electrode is held by the conductive clamping rod, the blade cuts into the electrode, thereby preventing rotation of the electrode relative to the conductive clamping rod.