CN111872530B

CN111872530B - Safety welding tongs for electric welding machine

Info

Publication number: CN111872530B
Application number: CN202010650524.0A
Authority: CN
Inventors: 李黎莎
Original assignee: Xiangtan Fenghong Machinery Manufacturing Co ltd
Current assignee: Xiangtan Fenghong Machinery Manufacturing Co.,Ltd.
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2022-02-01
Anticipated expiration: 2040-07-08
Also published as: CN111872530A

Abstract

The invention relates to the technical field of electric welding equipment and discloses a safety welding tongs for an electric welding machine, which comprises a handle, wherein a handle is movably hinged on the right side surface of the handle, one end of the right side surface of the handle is fixedly connected with a conductive clamping head, the left side of the handle is fixedly connected with an external electric connecting wire, a first hollow electric connecting block connected with the external electric connecting wire is fixedly installed on the front surface of an inner cavity of the handle, and a second hollow electric connecting block is fixedly installed on the front surface of the inner cavity of the handle, which is positioned on the right side of the first hollow electric connecting block. This electric welding safety electrode holder for machine, through setting up first cavity electricity connecting block, second cavity electricity connecting block, button, bull gear, little ring gear, the cooperation of first spur rack and second spur rack for this electrode holder is at the in-process that uses, need just can switch on the electrode holder pressing the button, and then prevents that the electrode holder from switching on always, prevents external reason, leads to the human body to become the intermediate conductor, and then prevents to appear the electric shock accident.

Description

Safety welding tongs for electric welding machine

Technical Field

The invention relates to the technical field of electric welding equipment, in particular to a safety welding tongs for an electric welding machine.

Background

The electric welder is a transformer with high power, and the welding material and the welded material on the welding electrode are melted by the high temperature electric arc generated by the instantaneous short circuit of the positive and negative poles, so that the welded object is combined.

The electric welding electrode holder that uses at present, its internal line and welding jaw are lasting electrified, only the welding rod is when not contacting with the structure that needs the welded, the circuit is unable to communicate, just so leave the potential safety hazard easily, the electrified part of welding rod or electrode holder is contacted to some position of hand or health, and foot or other positions of health do not have the insulation to ground again, especially people perspire in a large number, cause the human resistance to reduce, do not notice when changing the welding rod and touch welding jaw, make people become the intermediate conductor, and then take place the electric shock accident, and carrying out the welded in-process, people can directly place the electrode holder on required welded structure, and under the condition that does not close the welding machine, cause the formation unnecessary solder joint on welded structure like this easily.

Disclosure of Invention

The invention provides a safe welding tongs for an electric welding machine, which has the advantages of controlling the power on and off of the welding tongs, ensuring that the welding tongs cannot be electrified at the welding tongs mouth when not welding, ensuring that a welding rod cannot be exposed when not welding, ensuring the rapid power off of the welding tongs when electric shock occurs, and solving the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a safe soldering turret for electric welding machine, includes the handle, the right flank activity of handle articulates there is the handle, the electrically conductive holding head of one end fixedly connected with of handle right flank, the outside electric connecting wire of left side fixedly connected with of handle, the positive fixed mounting of handle inner chamber has the first cavity electricity connecting block that is connected with outside electric connecting wire, the front right side fixed mounting that is located first cavity electricity connecting block of handle inner chamber has second cavity electricity connecting block, the front right side fixed mounting that is located second cavity electricity connecting block of handle inner chamber has insulating mount pad, the toper chamber has been seted up to the inside of insulating mount pad, the inside slip joint in toper chamber has the slide rail board, the first articulated seat of other end fixed elastic connection of slide rail board, the left surface fixedly connected with insulating block of first articulated seat, the other end fixedly connected with of insulating block and first cavity electricity connecting block and the electrically conductive electrically connecting block matched with of second cavity electricity connecting block A rod.

Preferably, the inside slip joint in toper chamber has first straight rack, the left surface of first straight rack is connected with the right flank of first articulated seat, the bottom activity joint of handle has the button, the top of button is located the inside one end fixed mounting of handle has the second straight rack, the front movable mounting of handle inner chamber has the little ring gear with the meshing of second straight rack mutually, the back fixed mounting of little ring gear has big ring gear, the surface of big ring gear meshes with the surface of first straight rack mutually.

Preferably, the front of handle inner chamber is located that the right side activity of second spur rack articulates there is the broken line telescopic link, the one end of broken line telescopic link and the side swing joint of second spur rack, the front of handle inner chamber is located the right flank movable mounting of broken line telescopic link and has a broken line board with broken line telescopic link matched with, the front of handle inner chamber is located the left side below movable mounting of electrically conductive clamping head and has the articulated seat of second, the back fixedly connected with and the broken line board matched with push pedal of the articulated seat of second, the other end fixed mounting of the articulated seat of second has the flexible insulation backplate that extends to the handle outside.

Preferably, the top fixedly connected with intermediate conductor of second cavity electricity connecting block, safety resistor in the middle of the other end fixedly connected with of intermediate conductor, the output cable that the other end fixedly connected with of middle safety resistor and electrically conductive centre gripping head are connected, the surface cover of intermediate conductor and output cable is equipped with the induction coil who installs in the handle inside, the top fixed mounting that the front of handle inner chamber is located the second spur rack has the induction action device, the surface movable sleeve of induction action device is equipped with electrical coil, electrical coil's input and induction coil's output fixed connection.

Preferably, the first hinged seat and the sliding rail plate are connected through a torsion spring, and the sliding rail plate is in contact with the side wall of the conical cavity through a pulley.

The invention has the following beneficial effects:

1. this electric welding safety electrode holder for machine, through setting up first cavity electricity connecting block, second cavity electricity connecting block, button, bull gear, little ring gear, the cooperation of first spur rack and second spur rack for this electrode holder is at the in-process that uses, need just can switch on the electrode holder pressing the button, and then prevents that the electrode holder from switching on always, prevents external reason, leads to the human body to become the intermediate conductor, and then prevents to appear the electric shock accident.

2. This safety electrode holder for electric welding machine through the cooperation that sets up toper chamber, slide rail board, first articulated seat for this electrode holder is at the in-process that uses, can control the live time when not using the electrode holder, prevents neglecting of people under electrode holder on-state, when direct and welded structure contact with the welding rod, welds in unnecessary position department, prevents the mistake welding time overlength when guaranteeing the electrode holder security.

3. This electric welding machine safety electrode holder, through setting up with second spur rack matched with broken line telescopic link, broken line board, push pedal, the articulated seat of second, the flexible insulation backplate for when the button resumes the normal position, guarantee that the flexible insulation backplate can protect welding rod and electrically conductive holding head, prevent that the welding rod from contacting or contacting with the human body with a welding piece when not welding, and then protect human safety.

4. This electric welding safety electrode holder for machine, through setting up the intermediate conductor, output cable, middle safety resistor, induction coil, the circular telegram coil, the cooperation of response action device, make induction coil induction current under intermediate conductor and output cable effect be zero, and then make electroless in the induction coil, when the electric shock appears, because current is inconsistent between intermediate conductor and the output cable, lead to the induction current appearing in the induction coil, and then make the circular telegram coil electrified, thereby make the response action device carry out the fast action, thereby promote the button and get back to the normal position fast, and then make and cut off the power supply fast in the electrode holder, and then protect people.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2;

fig. 4 is a top view of a second hinge base of the present invention.

In the figure: 1. a handle; 2. a handle; 3. a conductive clamping head; 4. a middle safety resistor; 5. an induction coil; 6. a middle lead; 7. a slide rail plate; 8. a first hinge mount; 9. an insulating block; 10. a second hollow electrical connection block; 11. a conductive rod; 12. an external electrical connection wire; 13. a first hollow electrical connection block; 14. an insulating mounting seat; 15. a tapered cavity; 16. a first straight rack; 17. a button; 18. an output cable; 19. a fold line telescopic rod; 20. a wire folding plate; 21. a second hinge mount; 22. an inductive action device; 23. an electrified coil; 24. a second spur rack; 25. a small gear ring; 26. a large gear ring; 27. pushing the plate; 28. flexible insulating backplate.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a safety welding tongs for electric welding machine comprises a handle 1, a handle 2 movably hinged on the right side surface of the handle 1, a conductive clamping head 3 fixedly connected to one end of the right side surface of the handle 1, an external electrical connection wire 12 fixedly connected to the left side of the handle 1, a first hollow electrical connection block 13 connected to the external electrical connection wire 12 fixedly installed on the front surface of the inner cavity of the handle 1, a second hollow electrical connection block 10 fixedly installed on the right side of the first hollow electrical connection block 13 on the front surface of the inner cavity of the handle 1, an insulating installation seat 14 fixedly installed on the right side of the second hollow electrical connection block 10 on the front surface of the inner cavity of the handle 1, a conical cavity 15 opened inside the insulating installation seat 14, a sliding rail plate 7 slidably clamped inside the conical cavity 15, a first hinge seat 8 fixedly and elastically connected to the other end of the sliding rail plate 7, the first hinge seat 8 and the sliding rail plate 7 connected by a torsion spring, the slide rail plate 7 is contacted with the side wall of the conical cavity 15 through a pulley, the arrangement of the torsional spring and the conical cavity 15 can lead the welding tongs to be capable of conducting power-off in a delayed mode, so that power-off can be guaranteed even if a switch is not used, the service life of a welding machine is prevented from being influenced by long-time welding machine work, the left side face of the first hinged seat 8 is fixedly connected with the insulating block 9, the other end of the insulating block 9 is fixedly connected with the conducting rod 11 matched with the first hollow electric connecting block 13 and the second hollow electric connecting block 10, it should be noted that the outer surfaces of the first hollow electric connecting block 13 and the second hollow electric connecting block 10 are insulated, so that the outer surface of the insulating block is prevented from conducting with the handle 1, the conical cavity 15, the slide rail plate 7 and the first hinged seat 8 are matched, so that the power-on time of the welding tongs when not used can be controlled, and people are prevented from neglecting the power-on state of the welding tongs, when the welding rod is directly contacted with the welding structure, the welding rod is welded at an unnecessary position, and the safety of the welding tongs is ensured while the mistaken welding time is prevented from being overlong.

The inside of the conical cavity 15 is slidably clamped with a first straight rack 16, the left side surface of the first straight rack 16 is connected with the right side surface of the first hinge seat 8, the bottom of the handle 1 is movably clamped with a button 17, one end of the top of the button 17, which is positioned inside the handle 1, is fixedly provided with a second straight rack 24, the front surface of the inner cavity of the handle 1 is movably provided with a small gear ring 25 which is meshed with the second straight rack 24, the back of the small gear ring 25 is fixedly provided with a large gear ring 26, the outer surface of the large gear ring 26 is meshed with the outer surface of the first straight rack 16, the arrangement of the large gear ring 26 and the small gear ring 25 enables the short stroke of the second straight rack 24 to be converted into the large stroke of the first straight rack 16, and in the using process of the welding tongs by arranging the first hollow electric connection block 13, the second hollow electric connection block 10, the button 17, the large gear ring 26 and the small gear ring 25 and the first straight rack 16 and the second straight rack 24, the welding tongs can be electrified only by pressing the button 17, so that the welding tongs are prevented from being electrified all the time, the human body is prevented from becoming an intermediate conductor due to external reasons, and electric shock accidents are prevented.

The front of the inner cavity of the handle 1 is movably hinged with a folding line telescopic rod 19 at the right side of a second straight rack 24, one end of the folding line telescopic rod 19 is movably connected with the side surface of the second straight rack 24, the front of the inner cavity of the handle 1 is movably mounted with a folding line plate 20 matched with the folding line telescopic rod 19 at the right side surface of the folding line telescopic rod 19, a torsion spring is mounted at the contact position of the folding line plate 20 and the handle 1, so that the folding line plate 20 can return when not stressed, a second hinged seat 21 is movably mounted at the left lower part of the conductive clamping head 3 at the front of the inner cavity of the handle 1, the back of the second hinged seat 21 is fixedly connected with a push plate 27 matched with the folding line plate 20, a flexible insulating guard plate 28 extending to the outer side of the handle 1 is fixedly mounted at the other end of the second hinged seat 21, a torsion spring is arranged at the contact position of the second hinged seat 21 and the handle 1, so that the flexible insulating guard plate 28 can return to the original position when not stressed, through setting up with 24 matched with broken line telescopic links 19 of second spur rack, broken line board 20, push pedal 27, the articulated seat 21 of second, flexible insulating backplate 28 for when button 17 resumes the normal position, guarantee flexible insulating backplate 28 and can protect welding rod and conductive clamping head 3, prevent that the welding rod from contacting or contacting with the human body with the welding piece when not welding, and then protect human safety.

The top of the second hollow electric connection block 10 is fixedly connected with an intermediate lead 6, the other end of the intermediate lead 6 is fixedly connected with an intermediate safety resistor 4, the other end of the intermediate safety resistor 4 is fixedly connected with an output cable 18 connected with the conductive clamping head 3, the outer surfaces of the intermediate lead 6 and the output cable 18 are sleeved with an induction coil 5 arranged inside the handle 1, the front surface of the inner cavity of the handle 1 is positioned above the second straight rack 24 and is fixedly provided with an induction action device 22, the outer surface of the induction action device 22 is movably sleeved with an electrified coil 23, the input end of the electrified coil 23 is fixedly connected with the output end of the induction coil 5, and the induction current of the induction coil 5 under the action of the intermediate lead 6 and the output cable 18 is zero by arranging the intermediate lead 6, the output cable 18, the intermediate safety resistor 4, the induction coil 5, the electrified coil 23 and the induction action device 22 in a matching manner, and then make the interior electroless of induction coil 5, when the electric shock appears, because current inconsistency between intermediate conductor 6 and output cable 18 leads to appearing induced-current in the induction coil 5, and then makes the circular telegram coil 23 electrified to make response action device 22 carry out the snap action, thereby promote button 17 and get back to the normal position fast, and then make and cut off the power supply fast in the soldering turret, and then protect people.

Working principle, when using, need people to press button 17 to make button 17 move toward the inside of handle 1, and then drive second spur rack 24 to carry out longitudinal movement, thereby drive little ring gear 25 to carry out reverse rotation and rotate, and then drive big ring gear 26 to carry out reverse rotation, thereby drive first spur rack 16 to move toward the left side, thereby drive first articulated seat 8 to move toward the left side in conical cavity 15, and then drive conducting rod 11 to move toward the left side through insulating block 9, thereby make first hollow electric connecting block 13 and second hollow electric connecting block 10 conduct electricity through conducting rod 11, thereby make middle wire 6 carry out power transmission to conductive clamping head 3 through output cable 18, thereby make the welding rod electrified, when second spur rack 24 moves upward, make folding line 19 carry out clockwise tilt rotation, thereby make folding line board 20 carry out counterclockwise tilt, thereby pushing the push plate 27 to act, thereby enabling the flexible insulation protection plate 28 to rotate clockwise through the second hinged seat 21, thereby enabling the flexible insulation protection plate 28 to be far away from the welding rod, and welding can be carried out, when welding is stopped, the button 17 is released, at this time, due to the effect of the sliding rail plate 7 and the conical cavity 15, the first hinged seat 8 moves towards the right side, and further the conducting rod 11 is driven by the insulation block 9 to move towards the right side, thereby the conducting rod 11 is separated from the first hollow electric connection block 13, so that the conducting clamping head 3 is powered off, meanwhile, the folding line expansion link 19 rotates anticlockwise, so that the folding line plate 20 rotates clockwise by itself, thereby the second hinged seat 21 rotates anticlockwise, thereby the flexible insulation protection plate 28 is protected outside the welding rod, when people get an electric shock, the currents of the middle lead 6 and the output cable 18 are different, and then lead to the phase current inconsistent, thereby make the inside induced-current that forms of induction coil 5, and then supply power for circular telegram coil 23, thereby make circular telegram coil 23 produce the electromagnetism, and then act on induction action device 22, thereby make induction action device 22 promote second spur rack 24 fast and push down, thereby pass through little ring gear 25, bull ring gear 26, the effect of first spur rack 16, fast through the first articulated seat 8 of pulling, insulating block 9, make conducting rod 11 break away from first cavity electricity connecting block 13 fast, thereby realize the outage, and then guarantee that people break away from the electric shock fast, guarantee people's safety.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a safety electrode holder for electric welding machine, includes handle (1), its characterized in that: the handle is characterized in that a handle (2) is movably hinged to the right side face of the handle (1), a conductive clamping head (3) is fixedly connected to one end of the right side face of the handle (1), an external electric connecting wire (12) is fixedly connected to the left side of the handle (1), a first hollow electric connecting block (13) connected with the external electric connecting wire (12) is fixedly mounted on the front of the inner cavity of the handle (1), a second hollow electric connecting block (10) is fixedly mounted on the right side of the first hollow electric connecting block (13) on the front of the inner cavity of the handle (1), an insulating mounting seat (14) is fixedly mounted on the right side of the second hollow electric connecting block (10) on the front of the inner cavity of the handle (1), a conical cavity (15) is formed in the insulating mounting seat (14), a sliding rail plate (7) is clamped in the conical cavity (15), and a first hinged seat (8) is fixedly and elastically connected to the other end of the sliding rail plate (7), the left side surface of the first hinged seat (8) is fixedly connected with an insulating block (9), the other end of the insulating block (9) is fixedly connected with a conductive rod (11) matched with a first hollow electric connection block (13) and a second hollow electric connection block (10), a first straight rack (16) is connected in the conical cavity (15) in a sliding and clamping manner, the left side surface of the first straight rack (16) is connected with the right side surface of the first hinged seat (8), a button (17) is movably clamped at the bottom of the handle (1), a second straight rack (24) is fixedly arranged at one end of the top of the button (17) positioned in the handle (1), the front surface of the inner cavity of the handle (1) is movably provided with a small gear ring (25) which is meshed with the second straight rack (24), the back of the small gear ring (25) is fixedly provided with a large gear ring (26), and the outer surface of the large gear ring (26) is meshed with the outer surface of the first straight rack (16).

2. A safety electrode holder for electric welding machines according to claim 1, characterized in that: the front of handle (1) inner chamber is located the right side activity hinge joint of second spur rack (24) has broken line telescopic link (19), the one end of broken line telescopic link (19) and the side swing joint of second spur rack (24), the right flank movable mounting that the front of handle (1) inner chamber is located broken line telescopic link (19) has with broken line telescopic link (19) matched with broken line board (20), the front of handle (1) inner chamber is located the left side below movable mounting of electrically conductive holding head (3) has the articulated seat of second (21), the back fixedly connected with and the broken line board (20) matched with push pedal (27) of the articulated seat of second (21), the other end fixed mounting of the articulated seat of second (21) has flexible insulating backplate (28) that extend to the handle (1) outside.

3. A safety electrode holder for electric welding machines according to claim 1, characterized in that: wire (6) in the middle of the top fixedly connected with of second cavity electricity connecting block (10), safety resistor (4) in the middle of the other end fixedly connected with of middle wire (6), output cable (18) that the other end fixedly connected with of middle safety resistor (4) and electrically conductive holding head (3) are connected, the surface cover of middle wire (6) and output cable (18) is equipped with induction coil (5) of installing in handle (1) inside, the top fixed mounting that the front of handle (1) inner chamber is located second spur rack (24) has induction action device (22), the surface movable sleeve of induction action device (22) is equipped with electrical coil (23), the input of electrical coil (23) and the output fixed connection of induction coil (5).

4. A safety electrode holder for electric welding machines according to claim 1, characterized in that: the first hinged seat (8) is connected with the sliding rail plate (7) through a torsion spring, and the sliding rail plate (7) is in contact with the side wall of the conical cavity (15) through a pulley.