CN113385792A

CN113385792A - Welding gun capable of reducing radiation

Info

Publication number: CN113385792A
Application number: CN202110684817.5A
Authority: CN
Inventors: 孙永锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-09-14

Abstract

The invention discloses a welding gun capable of reducing radiation, which comprises a gun head, wherein a detachable electrochromic glass cover is arranged on the periphery of the gun head, an ultraviolet-proof film covers the surface of the glass cover, and a through hole sleeved outside the gun head is formed in the middle of the glass cover. When the electric welding operation is carried out, the glass cover is electrified in advance to change color, so that strong light can be blocked, the ultraviolet-proof film blocks ultraviolet rays, the glass cover is very close to a welding part, a direction blind area of the glass cover far away from the welding part is larger, the strong light can be blocked, and the ultraviolet rays cannot directly irradiate the welder, so that the radiation to the body is reduced, and the health of the welder is facilitated.

Description

Welding gun capable of reducing radiation

Technical Field

The invention belongs to the field of electric welding, and particularly relates to a welding gun capable of reducing radiation.

Background

Electric welding is a very important processing technology in production and processing and is very commonly used, but a large amount of ultraviolet rays exist in the electric welding, and the electric welding brings great harm to the health of electric welders. Therefore, various protective covers and protective clothing are designed, but a plurality of companies, factories and the like only have the protective covers for protecting the head and the glasses, and the protective clothing is not provided, so that the welder cannot protect the body during operation, a large amount of ultraviolet rays can shine on the body, and the welder can absorb a large amount of ultraviolet radiation after long-term operation to cause corresponding diseases, such as skin diseases, infertility and the like.

Disclosure of Invention

In view of the above, the present invention provides a welding gun with reduced radiation, which can block some ultraviolet radiation and reduce radiation to the body, so as to be beneficial to the health of welders, in view of the situation that protective clothing is not worn in the electric welding operation in the background art.

In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose: the utility model provides a reduce welder of radiation, includes the rifle head, rifle head periphery is equipped with detachable electrochromic glass cover, glass cover surface covers has the anti ultraviolet membrane, the glass cover middle part is equipped with the through-hole of cover outside the rifle head.

Through the above setting: when the electric welding operation is carried out, the glass cover is electrified in advance to change color, so that strong light can be blocked, the ultraviolet-proof film blocks ultraviolet rays, the glass cover is very close to a welding part, a direction blind area of the glass cover far away from the welding part is larger, the strong light can be blocked, and the ultraviolet rays cannot directly irradiate the welder, so that the radiation to the body is reduced, and the health of the welder is facilitated.

Further: the outer side wall of the gun head is connected with a tubular connecting ring, and the outer side wall of the connecting ring is in threaded connection with a connecting pipe; a torsion ring made of rubber is arranged between the glass cover and the gun head, the section of the torsion ring is approximately v-shaped, one end of the torsion ring is connected with the connecting pipe, and the other end of the torsion ring is connected with the periphery of the through hole.

Through the above setting: the torsion ring is made of rubber materials and can be twisted, so that the glass cover can be inclined in all directions, the glass cover is not easy to block the inclination of the glass cover, and the welding gun can be inclined to a proper angle under the condition that the purpose of the invention can be achieved, thereby facilitating welding.

Further: the glass cover turns black after being electrified.

Through the above setting: the glass cover is changed into black, the effect of blocking light by the black color is better, the effect of blocking radiation is better, and the purpose of reducing radiation on the body can be achieved.

Further: the outer side wall of the gun head is connected with a tubular connecting ring, and the outer side wall of the connecting ring is in threaded connection with a connecting pipe; the periphery of the upper end of the connecting ring is connected with a limiting ring for limiting the connecting pipe.

Through the above setting: the go-between and connecting pipe threaded connection, the glass of so being convenient for cover and the connection and the separation of rifle head, and set up the spacing ring, prevent that the connecting pipe from twisting the head.

Further: the outer side wall of the gun head is connected with a tubular connecting ring, and the outer side wall of the connecting ring is in threaded connection with a connecting pipe; the welding gun is characterized by further comprising a controller, a handle is connected to the gun head above the glass cover, a control button for controlling the glass cover and the welding gun is mounted on the handle, the controller controls the glass cover to be electrified and discolored after the control button is pressed, and the controller controls the welding gun to be electrified and welded after 2-5 seconds; when the control button is released, the controller controls the welding gun to be powered off and not to be welded, and the glass cover is powered off after 2-5 seconds.

Through the above setting: before the glass cover is electrified, and is powered off after being welded, so that strong light and ultraviolet rays can be blocked in advance, the strong light and the ultraviolet rays are not blocked, and the ultraviolet rays are prevented from remaining, so that better and more sufficient protection can be achieved.

Further: the outer side wall of the gun head is connected with a tubular connecting ring, and the outer side wall of the connecting ring is in threaded connection with a connecting pipe; the welding gun is characterized by further comprising a controller, a handle is connected to the gun head above the glass cover, a control button for controlling the glass cover and the welding gun is mounted on the handle, the control button comprises a shell connected with the gun head, one end, far away from the gun head, of the shell is provided with an opening, a pressing cap is arranged at the opening of the shell, part of the pressing cap is located in the shell, the inner end of the pressing cap is connected with a pressing plate, the end, connected with the pressing cap, of the pressing plate is connected with a first spring for pushing the pressing cap outwards, the first spring is sleeved outside the pressing cap, and the first spring is further connected with the shell; one end of the pressure plate, which is far away from the pressure cap, is connected with a first electrode a and a second electrode a which has a certain distance with the first electrode a, a first electrode b corresponding to the first electrode a is also arranged in the shell, the distance between the first electrode b and the first electrode a is l, one end of the first electrode b, which is far away from the first electrode a, is connected with a second spring, and one end of the second spring, which is far away from the first electrode b, is connected with the shell;

the shell is also internally provided with a second electrode b corresponding to the second electrode a, a conducting strip is arranged between the second electrode a and the second electrode b, one side, far away from the conducting strip, of the second electrode b is provided with an electromagnet for driving the second electrode b to move, one end of the electromagnet is connected with the shell, the other end of the electromagnet faces the second electrode b, the other end of the electromagnet is connected with a guide rod, the guide rod is connected with a magnet ring in a sliding manner, the magnet ring is provided with a sleeve hole sleeved on the guide rod, the second electrode b is also provided with a sleeve hole sleeved on the guide rod, the second electrode b is adhered to the end, close to the conducting strip, of the magnet ring, and the conducting strip is connected with the end, far away from the electromagnet, of the guide rod or the conducting strip is connected with the shell; a non-conductive third spring which drives the magnet ring to approach the electromagnet is connected between the magnet ring and the electromagnet;

the distance between the conducting strip and the second electrode a is k, wherein k > l > 0;

after the first electrodes a and b are contacted, the electromagnet is electrified, and then the electromagnet pushes the magnet ring to gradually move towards the conducting sheet, so that the second electrode b is contacted with the conducting sheet;

after the first electrodes a, b are contacted, and after the second electrodes a, b are contacted, the welding work can be carried out.

Through the above setting: since k is greater than l and greater than 0, when the pressing cap is pressed into the shell, the first electrodes a and b are contacted, the glass cover is electrified for protection, then the electromagnet repels the magnet ring to enable the second electrode b to be contacted with the conducting sheet, the pressing cap is continuously pressed to enable the second electrode a to be contacted with the conducting sheet, and welding current of a welding gun can occur when the second electrodes a and b are contacted, so that welding can be carried out; after the pressing cap is loosened, in the process of gradually resetting the pressing cap, the second electrode a is separated from the conducting strip, welding current is not generated any more, welding cannot be performed, intense light and ultraviolet rays are not generated any more, and then the first electrode a and the first electrode b are separated, so that the glass cover is powered off and is not protected any more.

Further: wherein k-l is more than or equal to 5mm and less than or equal to 10 mm.

Through the above setting: therefore, the power-on time of the glass cover is not required to be much longer than that of welding, and is not much later than that of welding power-off, so that electricity is saved, and the welding efficiency is not reduced too much.

Further: the first electrode a and the first electrode b form a first switch, the first switch is connected with the glass cover in series, the second electrode a and the second electrode b form a second switch, the second switch is connected with the first switch in parallel, and the second switch is connected with the welding circuit in series.

Through the above setting: the circuit connection is matched with k > l >0, so that the functions of electrifying the glass cover before welding and powering off after welding can be realized, the controller is not required to control the electrifying and powering off, and the requirement on the controller is reduced.

Further: the glass is of a circular ring type, and the outer ring is wrapped with a protective film.

Through the above setting: so that the outer ring of the glass cover is not easy to be broken.

Compared with the prior art, the invention has the main beneficial effects that: when the electric welding operation is carried out, the glass cover is electrified in advance to change color, so that strong light can be blocked, the ultraviolet-proof film blocks ultraviolet rays, the glass cover is very close to a welding part, a direction blind area of the glass cover far away from the welding part is larger, the strong light can be blocked, and the ultraviolet rays cannot directly irradiate the welder, so that the radiation to the body is reduced, and the health of the welder is facilitated.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a gun head and handle etc. of the present invention;

FIG. 3 is a perspective view of a glass cover of the present invention;

FIG. 4 is a perspective view of another perspective of the glass cover of the present invention;

fig. 5 is a cross-sectional view of a twist ring of the present invention;

FIG. 6 is a schematic structural diagram of a control button according to embodiment 2 of the present invention;

FIG. 7 is a schematic diagram of a control button according to embodiment 2 of the present invention, in which a first electrode a is in contact with a first electrode b, and a second electrode a is not in contact with a second electrode b;

FIG. 8 is a circuit diagram according to embodiment 2 of the present invention.

Reference numerals: 1. a gun head; 11. an electrode needle; 12. a connecting ring; 121. a limiting ring; 2. a handle; 3. a glass cover; 31. a torsion ring; 32. a connecting pipe; 4. a control button; 41. a housing; 42. pressing the cap; 43. pressing a plate; 431. a first electrode a; 432. a second electrode a; 44. a first spring; 45. a second spring; 451. a first electrode b; 46. an electromagnet; 461. a guide bar; 462. a magnet ring; 463. a second electrode b; 464. a third spring; 47. and (4) conducting strips.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 8 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 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.

Example 1

As shown in fig. 1-4, the present embodiment of a welding gun for reducing radiation, which is described by taking argon arc welding as an example, includes a gun head 1, a detachable electrochromic glass cover 3 is disposed on the periphery of the gun head 1, an ultraviolet-proof film covers the surface of the glass cover 3, and a through hole is disposed in the middle of the glass cover 3 and is sleeved outside the gun head 1. The outer side wall of the gun head 1 is connected with a tubular connecting ring 12, the outer side wall of the connecting ring 12 is in threaded connection with a connecting pipe 32, and the periphery of the upper end of the connecting ring 12 is connected with a limiting ring 121 for limiting the connecting pipe 32. In order to better block the strong light, the glass cover 3 is changed into black after being electrified, so that the strong light is blocked more easily.

In order to adjust the inclination of the glass cover 3 and facilitate various inclinations of the lance tip 1 for welding operation, as shown in fig. 3-5, a torsion ring 31 made of rubber is arranged between the glass cover 3 and the lance tip 1, the section of the torsion ring 31 is approximately v-shaped, one end of the torsion ring 31 is connected with a connecting pipe 32, and the other end is connected with the periphery of the through hole. The twist ring 31 can be twisted to different positions to tilt the glass cover 3 at an angle to meet the requirement. The torsion ring 31 can be pulled, so that the glass cover 3 can be moved along the gun head 1 to a certain extent, the distance between the glass cover 3 and a welding workpiece is adjusted, welding is not easily blocked, and the glass welding gun can be used in a field.

In order to control the on-off state of the glass cover 3 to enable the glass cover 3 to play a good protection role, a handle 2 is connected to a gun head 1 above the glass cover 3, a control button 4 for controlling the glass cover 3 and a welding gun is installed on the handle 2, when the control button 4 is pressed, a controller controls the glass cover 3 to be electrified and discolored, and after 2-5 seconds, the controller controls the welding gun to be electrified and welded.

In order to prevent the outer ring of the glass cover 3 from being broken, the glass cover 3 is a ring shape, and the outer ring is covered with a protective film (not shown) made of rubber or other materials.

The using method comprises the following steps: adjust glass cover 3 to suitable position, then see through glass cover 3 and observe, be close to the welding position with electrode needle 11 of rifle head 1, press control button 4 again, 3 electricity discolours of controller control glass cover, and 3s back controller again controls welder circular telegram and welds, and people can see through the weak light that the highlight sees through glass cover 3 and observe to remove electrode needle 11 and carry out continuous welding. (the amount of the strong light transmission can be set in advance, creativity is not needed, and the strong light transmission amount can be adjusted according to requirements).

Example 2

The difference between this embodiment and embodiment 1 lies in the difference of the control button 4, and the sequential on/off of the control glass cover 3 is determined by the control button 4, specifically: control button 4 is including the shell 41 of being connected with rifle head 1, and the shell is including lateral wall, outer wall and diapire, and the removal that the rifle head was kept away from to the shell is the outer wall, and what be connected with the rifle head is the diapire, and be the lateral wall between diapire and the outer wall, shell 41 keep away from the one end opening of rifle head 1 (be equipped with the opening on the outer wall promptly), and shell 41 opening part is equipped with the part and is in the pressure cap 42 of shell 41, as shown in fig. 6, control button 4 inner structure is: the inner end of the pressure cap 42 is fixedly connected with a pressure plate 43, the end of the pressure plate 43 connected with the pressure cap 42 is fixedly connected with a first spring 44 which pushes the pressure cap 42 outwards, the first spring 44 is sleeved outside the pressure cap 42, and the first spring 44 is also fixedly connected with the outer wall of the shell 41; one end of the pressing plate 43, which is far away from the pressing cap 42, is fixedly connected with a first electrode a431 and a second electrode a432 which has a certain distance with the first electrode a431, a first electrode b451 which corresponds to the first electrode a431 is further arranged in the housing 41, the distance between the first electrode b451 and the first electrode a431 is l, one end of the first electrode b451, which is far away from the first electrode a431, is connected with a second spring 45, and one end of the second spring 45, which is far away from the first electrode b451, is fixedly connected with the bottom wall of the housing 41.

A second electrode b463 corresponding to the second electrode a432 is further arranged in the housing 41, a conducting strip 47 is arranged between the second electrode a432 and the second electrode b463, an electromagnet 46 for driving the second electrode b463 to move is arranged on one side of the second electrode b463 far away from the conducting strip 47, one end of the electromagnet 46 is fixedly connected with the housing 41, the other end of the electromagnet 46 faces the second electrode b463, a guide rod 461 is fixedly connected with the end, a magnet ring 462 is slidably connected with the guide rod 461, the magnet ring 462 is provided with a sleeve hole sleeved on the guide rod 461, the second electrode b463 is also provided with a sleeve hole sleeved on the guide rod 461, the second electrode b463 is adhered on the end, close to the conducting strip 47, of the magnet ring 462, and the conducting strip 47 is fixedly connected with the end, far away from the electromagnet 46, of the conducting strip 47 or the conducting strip 47 is fixedly connected with the side wall of the housing 41; a non-conductive third spring 464 is connected between the magnet ring 462 and the electromagnet to urge the magnet ring 462 towards the electromagnet 46.

The distance between the conductive sheet 47 and the second electrode a432 is k, wherein k > l >0, preferably 5mm ≦ k-l ≦ 10 mm.

As shown in fig. 7, when the pressing cap 42 is preliminarily pressed, the electromagnet 46 is energized after the first electrodes a431 and b are contacted, and then the electromagnet 46 pushes the magnet ring 462 to gradually move toward the conductive sheet 47, so that the second electrode b463 is contacted with the conductive sheet 47. If it is desired to contact the second electrodes a432, b, the pressing cap 42 is further pressed, so that the first electrodes a431, b are contacted and the second electrodes a432, b are contacted, thereby performing a safe welding operation.

As shown in fig. 8: the first electrode a431 and the first electrode b451 constitute a first switch, the power source and the glass cover 3 are connected in series, the second electrode a432 and the second electrode b463 constitute a second switch, the second switch is connected with the first switch in parallel, and the second switch is connected with the welding circuit in series.

This embodiment is used in the same manner as in embodiment 1 except that the pressing cap 42 is pressed and released at a slower speed, not too fast, preferably 2-3 seconds or more, until the pressing is completed. The embodiment does not use a controller to control the power on to the cover glass before welding and the power off to the cover glass after welding, which has the advantages of lower requirements on the controller and provides different methods to make people have more choices.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art should make general changes and substitutions within the technical scope of the present invention to be included in the protection scope of the present invention.

Claims

1. A reduced radiation welding gun, characterized by: the device comprises a gun head, wherein a detachable electrochromic glass cover is arranged on the periphery of the gun head, an ultraviolet-proof film covers the surface of the glass cover, and a through hole sleeved outside the gun head is formed in the middle of the glass cover.

2. A reduced radiation welding gun according to claim 1, characterized in that: the outer side wall of the gun head is connected with a tubular connecting ring, and the outer side wall of the connecting ring is in threaded connection with a connecting pipe; a torsion ring made of rubber is arranged between the glass cover and the gun head, the torsion ring is approximately v-shaped, one end of the torsion ring is connected with the connecting pipe, and the other end of the torsion ring is connected with the periphery of the through hole.

3. A reduced radiation welding gun according to claim 1, characterized in that: the glass cover turns black after being electrified.

4. A reduced radiation welding gun according to claim 2, characterized in that: and the periphery of the upper end of the connecting ring is connected with a limiting ring for limiting the connecting pipe.

5. A reduced radiation welding gun according to claim 1, characterized in that: the welding gun is characterized by further comprising a controller, a handle is connected to the gun head above the glass cover, a control button for controlling the glass cover and the welding gun is installed on the handle, the controller controls the glass cover to be electrified and discolored after the control button is pressed, and the controller controls the welding gun to be electrified and welded after 2-5 seconds.

6. A reduced radiation welding gun according to claim 1, characterized in that: the welding gun is characterized by further comprising a controller, a handle is connected to the gun head above the glass cover, a control button for controlling the glass cover and the welding gun is mounted on the handle, the control button comprises a shell connected with the gun head, an opening is formed in one end, far away from the gun head, of the shell, a pressing cap is arranged at the opening of the shell, part of the pressing cap is located in the shell, the inner end of the pressing cap is connected with a pressing plate, the end, connected with the pressing cap, of the pressing plate is connected with a first spring for pushing the pressing cap outwards, the first spring is sleeved outside the pressing cap, and the first spring is further connected with the shell; one end of the pressure plate, which is far away from the pressure cap, is connected with a first electrode a and a second electrode a which has a certain distance with the first electrode a, a first electrode b corresponding to the first electrode a is also arranged in the shell, the distance between the first electrode b and the first electrode a is l, one end of the first electrode b, which is far away from the first electrode a, is connected with a second spring, and one end of the second spring, which is far away from the first electrode b, is connected with the shell;

7. A reduced radiation welding gun according to claim 6, characterized in that: wherein k-l is more than or equal to 5mm and less than or equal to 10 mm.

8. A reduced radiation welding gun according to claim 6, characterized in that: the first electrode a and the first electrode b form a first switch, the first switch is connected with the glass cover in series, the second electrode a and the second electrode b form a second switch, the second switch is connected with the first switch in parallel, and the second switch is connected with the welding circuit in series.

9. A reduced radiation welding gun according to claim 1, characterized in that: the glass is of a circular ring type, and the outer ring is wrapped with a protective film.