CN210878201U

CN210878201U - Protective welding gun for electric welding machine

Info

Publication number: CN210878201U
Application number: CN201921795290.8U
Authority: CN
Inventors: 范晓辉; 王国伟; 孟春丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-30
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a protective welding gun for electric welding machine relates to mechanical welding technical field, and the welding gun to current electric welding does not have the isolated function of welding spark, and does not have the problem of the safety protection mechanism of auto-power-off, now proposes following scheme, and it includes pincers, lower pincers, protection casing and bolt, it is articulated with the lower pincers to go up the pincers, the equal fixed mounting in one side that the front end of going up pincers and lower pincers is close to each other has the clamp tooth, the tail end fixed mounting of lower pincers has the pincers handle, the one side welding that goes up pincers and lower pincers and be close to each other has first spring. The utility model discloses novel structure, and the device can effectual isolated spark under the condition that does not influence the use to effectively protect operator's hand and arm, and can stably protect in the use, the device automatic power-off when staff's palm leaves the pincers handle simultaneously increases the security of using, suitable popularization.

Description

Protective welding gun for electric welding machine

Technical Field

The utility model relates to a mechanical welding technical field especially relates to an electric welding machine is with protection type welding gun.

Background

The electric welding machine is a common welding apparatus in the field of machining and maintenance, and has the advantages of simple operation and low cost.

At present, most welding guns in the market are made of insulating materials and have a strong electric shock prevention function, but most welding guns do not have corresponding spark gap protection devices, and generally do not have the potential safety hazard that the welding guns cannot automatically cut off the power supply when the hands of operators leave the positions of handles, so that the protection type welding gun for the electric welding machine is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of electric welding is with protection type welding gun has solved the welding gun that has the electric welding and has not had the isolated function of welding spark, and does not have the problem of the safety protection mechanism of auto-power-off.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a protective welding gun for an electric welding machine comprises an upper clamp, a lower clamp, a protective cover and a bolt, wherein the upper clamp is hinged with the lower clamp, clamping teeth are fixedly arranged on the surfaces, close to each other, of the front ends of the upper clamp and the lower clamp, a clamp handle is fixedly arranged at the tail end of the lower clamp, a first spring is welded on the surface, close to each other, of the upper clamp and the lower clamp, the first spring is positioned between the hinged part of the upper clamp and the lower clamp and the clamp handle, a threaded hole matched with the bolt is formed in the bottom end surface of the lower clamp, the protective cover comprises a front glass protective cover, a connecting ring and a rear glass protective cover, the front glass protective cover and the rear glass protective cover are fixedly connected with the connecting ring, the connecting ring is provided with a mounting hole, the mounting hole is connected with the bolt in a sliding mode, the bottom ends of the connecting ring and the lower clamp are fixedly mounted through the bolt, the tail end of the clamp, just go up the backup pad and be located the upper end of backup pad down, the last fixed surface of pincers handle installs the shell fragment, just the shell fragment is in the one end fixedly connected with T type depression bar of keeping away from the pincers handle, just T type depression bar and pincers handle sliding connection, the one end that the shell fragment was kept away from to T type depression bar articulates there is last touch panel, it is articulated with last backup pad to go up the touch panel, just it has the second spring to go up touch panel and one side skin weld that last backup pad is close to each other, the backup pad articulates down has touch panel, one side skin weld that touch panel and lower backup pad are close to each other has the third spring down, just go up touch panel and the equal electric connection of touch panel down has the power supply line.

Preferably, a rubber gasket is arranged between the bolt and the connecting ring, and a limiting block is arranged on the outer surface of the bolt.

Preferably, the front glass protection cover is arranged in a semi-surrounding mode, and the rear glass protection cover is arranged in a fully-surrounding mode.

Preferably, the outer surface of the forceps handle is provided with anti-skidding threads, and the outer surfaces of the upper forceps and the lower forceps are arranged in an insulating mode.

Preferably, the surface of one side of the upper pliers, which is close to the lower pliers, is fixedly provided with a limiting sleeve which is matched with the upper pliers, the limiting sleeve is positioned between the hinged part of the upper pliers and the lower pliers and the pliers handle, and the first spring penetrates through the limiting sleeve.

The utility model has the advantages that:

1. the connecting ring is fixed at the bottom end of the lower pliers through the bolt, the front glass protective cover and the rear glass protective cover are fixed on the lower pliers through the connecting ring, the protective cover can stably protect in the using process, the front glass protective cover is arranged in a semi-surrounding mode, one side of a clamping welding rod is reserved, the rear glass protective cover is arranged in a fully-surrounding mode, the device can effectively isolate sparks under the condition that the device does not influence use, and hands and arms of operators are effectively protected.

2. The clamp comprises a clamp handle, a T-shaped pressure rod, a spring piece, an upper touch plate, a lower touch plate, a wire, a lower touch plate, a clamp handle and a T-shaped pressure rod, wherein the clamp handle is arranged on the upper touch plate; when the palm leaves the device, the upper contact plate pushes the T-shaped pressure rod to move upwards under the pulling of the second spring, and the upper contact plate is separated from the lower contact plate, so that the device is powered off, and the function of automatically powering off the device when the palm of a worker leaves the clamp handle is achieved.

In conclusion, the device can effectively isolate sparks under the condition that the use is not influenced, effectively protect the hands and arms of an operator, can stably protect the hands and the arms in the use process, and is automatically powered off when the palm of a worker leaves the clamp handle, so that the use safety is improved, and the device is suitable for popularization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the structure of the present invention.

Fig. 3 is a schematic diagram of the automatic power-off structure of the present invention.

Reference numbers in the figures: the welding clamp comprises an upper clamp 1, a lower clamp 2, a clamp handle 3, a power supply line 4, a limiting sleeve 5, a first spring 6, a clamping tooth 7, a rear glass protective cover 8, a connecting ring 9, a front glass protective cover 10, a bolt 11, a limiting block 12, a T-shaped pressure lever 13, a spring plate 14, an upper contact plate 15, an upper supporting plate 16, a second spring 17, a third spring 18, a lower contact plate 19, a lower supporting plate 20 and a welding rod 21.

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.

Referring to fig. 1-3, a protective welding gun for an electric welding machine comprises an upper clamp 1, a lower clamp 2, a protective cover and a bolt 11, wherein the upper clamp 1 is hinged with the lower clamp 2, one surface of the upper clamp 1, which is close to the front end of the lower clamp 2, is fixedly provided with a clamping tooth 7, the tail end of the lower clamp 2 is fixedly provided with a clamp handle 3, one surface of the upper clamp 1, which is close to the lower clamp 2, is welded with a first spring 6, the first spring 6 is positioned between the hinged part of the upper clamp 1 and the lower clamp 2 and the clamp handle 3, the bottom end surface of the lower clamp 2 is provided with a threaded hole matched with the bolt 11, the protective cover comprises a front glass protective cover 10, a connecting ring 9 and a rear glass protective cover 8, the front glass protective cover 10 and the rear glass protective cover 8 are fixedly connected with the connecting ring 9, the connecting ring 9 is provided with a mounting hole, the mounting hole is connected with the, the tail end of the clamp handle 3 is electrically connected with a power supply line 4, an upper support plate 16 and a lower support plate 20 are fixedly arranged in the clamp handle 3, the upper support plate 16 is positioned at the upper end of the lower support plate 20, an elastic sheet 14 is fixedly arranged on the upper surface of the clamp handle 3, a T-shaped pressure lever 13 is fixedly connected to one end of the elastic sheet 14 far away from the clamp handle 3, the T-shaped pressure lever 13 is connected with the clamp handle 3 in a sliding manner, an upper contact plate 15 is hinged to one end of the T-shaped pressure lever 13 far away from the elastic sheet 14, the upper contact plate 15 is hinged to the upper support plate 16, a second spring 17 is welded on the surface of one side, close to the upper contact plate 15 and the upper support plate 16, of the upper contact plate 15 and the upper support plate 16, a lower contact plate 19 is hinged to the lower support plate 20, a third spring 18 is welded on the surface of one side, close to the lower contact plate 19, the power supply line 4, preceding glass protection casing 10 is the semi-surrounding setting, and back glass protection casing 8 is for enclosing the setting entirely, and the surface of pincers handle 3 is provided with anti-skidding screw thread, and goes up the surface of pincers 1 and pincers 2 down and be insulating setting, goes up a side fixed surface that pincers 1 and pincers 2 are close to each other and installs stop collar 5 that matches each other, and stop collar 5 is located and is gone up articulated department of pincers 1 and pincers 2 down and pincers handle 3 between, and first spring 6 runs through in the inside of stop collar 5.

The working principle is as follows: before the device is used, the lower plier 2 and the upper plier 1 penetrate through the connecting ring 9, then the mounting hole of the connecting ring 9 is aligned with the center of the threaded hole at the bottom end of the lower plier 2, and then the connecting ring 9 and the lower plier 2 are fixed by using the bolt 11, so that the positions of the front glass protective cover 10 and the rear glass protective cover 8 which are fixedly connected to the connecting ring 9 are fixed; when the device is used, a palm presses the tail end of an upper clamp 1 to separate clamping teeth 7 fixed on the upper clamp 1 and a lower clamp 2, a welding rod 21 is placed between the two clamping teeth 7, the upper clamp 1 is loosened, the welding rod 21 is clamped by the two clamping teeth 7 under the pushing of a first spring 6, the palm holds a clamp handle 3, an elastic sheet 14 pushes a T-shaped pressure rod 13 downwards under the pressure of the palm, the T-shaped pressure rod 13 moves downwards, one end of an upper contact plate 15 far away from a second spring 17 is continuously close to a lower contact plate 19 until the upper contact plate is contacted with the lower contact plate 19 due to the downward movement of the T-shaped pressure rod 13, the end, far away from the upper contact plate 15 and the lower contact plate 19, of the device is electrically connected with a power supply line when the lower contact plate 19 is contacted with the upper contact plate 15, the clamping teeth 7 are electrically connected with the power supply line, the welding rod is electrically connected, and an object; when the welding is finished, the bottom end of the upper clamp 1 is pressed, so that the two clamping teeth 7 are separated, the rest welding rods 21 fall off, then the hand-screwed bolt 11 separates the connecting ring 9 from the lower clamp 2, the front glass protective cover 10 and the rear glass protective cover 8 are taken down together with the connecting ring 9, and the palm leaves the clamp handle 3, so that the device is powered off.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A protective welding gun for an electric welding machine comprises an upper clamp (1), a lower clamp (2), a protective cover and a bolt (11), and is characterized in that the upper clamp (1) is hinged with the lower clamp (2), one surface of the upper clamp (1) close to the front end of the lower clamp (2) is fixedly provided with a clamping tooth (7), the tail end of the lower clamp (2) is fixedly provided with a clamp handle (3), one surface of the upper clamp (1) close to the lower clamp (2) is welded with a first spring (6), the first spring (6) is positioned between the hinged part of the upper clamp (1) and the lower clamp (2) and the clamp handle (3), the bottom end surface of the lower clamp (2) is provided with a threaded hole matched with the bolt (11), the protective cover comprises a front glass protective cover (10), a connecting ring (9) and a rear glass protective cover (8), and the front glass protective cover (10) and the rear glass protective cover (8) are fixedly connected with the connecting ring (9), the clamp comprises a connecting ring (9), a bolt (11) is slidably connected with the connecting ring (9), the connecting ring (9) and the bottom end of a lower clamp (2) are fixedly installed through the bolt (11), the tail end of a clamp handle (3) is electrically connected with a power supply line (4), an upper supporting plate (16) and a lower supporting plate (20) are fixedly installed inside the clamp handle (3), the upper supporting plate (16) is located at the upper end of the lower supporting plate (20), an elastic sheet (14) is fixedly installed on the upper surface of the clamp handle (3), a T-shaped pressure rod (13) is fixedly connected to one end, away from the clamp handle (3), of the elastic sheet (14), the T-shaped pressure rod (13) is slidably connected with the clamp handle (3), an upper contact plate (15) is hinged to one end, away from the elastic sheet (14), of the T-shaped pressure rod (13), the upper contact plate (15) is hinged to the upper supporting plate (16), and a second spring (17) is welded to one side surface, close to the upper contact plate (15, lower fagging (20) are articulated to have lower touch panel (19), one side skin weld that touch panel (19) and lower fagging (20) are close to each other down has third spring (18), just go up touch panel (15) and touch panel (19) equal electric connection down have power supply line (4).

2. The protective welding gun for electric welding machine according to claim 1, characterized in that a rubber gasket is arranged between the bolt (11) and the connecting ring (9), and the outer surface of the bolt (11) is provided with a limiting block (12).

3. A welding gun of the shielded type for electric welding machine according to claim 1, characterized in that said front glass shield (10) is in a semi-surrounding arrangement and said rear glass shield (8) is in a fully surrounding arrangement.

4. The protective welding gun for electric welding machine according to claim 1, characterized in that the outer surface of the clamp handle (3) is provided with anti-skid threads, and the outer surfaces of the upper clamp (1) and the lower clamp (2) are insulated.

5. The protective welding gun for the electric welding machine as claimed in claim 1, characterized in that the mutually matched limiting sleeves (5) are fixedly arranged on the surfaces of the sides, close to each other, of the upper pliers (1) and the lower pliers (2), the limiting sleeves (5) are positioned between the hinged part of the upper pliers (1) and the lower pliers (2) and the pliers handles (3), and the first spring (6) penetrates through the limiting sleeves (5).