CN220993096U - Small pressure adjustable welding tongs - Google Patents
Small pressure adjustable welding tongs Download PDFInfo
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- CN220993096U CN220993096U CN202322513963.9U CN202322513963U CN220993096U CN 220993096 U CN220993096 U CN 220993096U CN 202322513963 U CN202322513963 U CN 202322513963U CN 220993096 U CN220993096 U CN 220993096U
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- 238000003466 welding Methods 0.000 title claims abstract description 95
- 230000007704 transition Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 12
- 239000002184 metal Substances 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a small pressure-adjustable welding tongs which comprises a shell, an upper electrode, a lower electrode, a button, a tensioning plate, an adjusting spring assembly, a stroke positioning assembly and a welding trigger assembly, wherein the upper electrode is connected with the lower electrode; the upper electrode is rotatably arranged in the shell through an upper clamp, the lower electrode is fixedly arranged in the shell through a lower clamp, and a rebound spring is arranged between the upper clamp and the lower clamp, so that the upper electrode can be in contact connection with the lower electrode; one end of the button is rotatably connected to the shell, the other end of the button is connected with the upper clamp through a tensioning plate, the button is located above the upper electrode, and the adjusting spring assembly, the stroke positioning assembly and the welding trigger assembly are arranged between the button and the upper electrode at intervals respectively. The utility model relates to the technical field of welding equipment, and can solve the problem of inconvenient welding pressure of a small handheld welding tongs in the prior art.
Description
Technical Field
The utility model relates to the technical field of welding equipment, in particular to a small pressure-adjustable welding tongs.
Background
The small-sized handheld welding tongs in the prior art comprise a shell, an upper electrode with one end rotatably arranged in the shell and a lower electrode with one end fixedly arranged in the shell, wherein the upper electrode is pressed downwards to be in contact with the lower electrode through a button, so that welding operation is realized.
The welding pressure adjusting structure of the small handheld welding tongs in the prior art and the working principle thereof are as follows: an upper metal block is arranged on the button, and a spring is arranged between the bottom of the upper metal block and the upper electrode; a pressing rod is slidably arranged on the upper metal block, one end of the pressing rod penetrates through the upper metal block and is coaxially connected with the spring, and the other end of the pressing rod penetrates above the button; and a set screw is arranged on the upper electrode through a lower metal block. When the electrode is used, the pressing rod is pressed downwards, so that the button and the upper metal block synchronously move downwards and compress the spring until the upper electrode is contacted with the lower electrode. Continuing to press the pressing rod downwards, the button and the upper metal block are limited by the fact that the lower electrode is not moved downwards any more, and the pressing rod moves downwards relative to the upper metal block, so that the spring is further compressed until the pressing rod is in contact with the set screw.
If the welding pressure of the small handheld welding tongs in the prior art needs to be changed, the height of the set screw needs to be changed, and the pressing stroke of the pressing rod, namely the compression amount of the spring, is changed. The positioning screw is positioned below the spring, so that the assembly, disassembly and replacement are inconvenient, and the welding pressure is inconvenient to adjust; meanwhile, the pressing stroke and the welding pressure are synchronously regulated, so that the high-precision control of the welding operation is not facilitated. Therefore, it is necessary to provide a small-sized pressure-adjustable welding tongs, which can solve the problem of inconvenient welding pressure of the small-sized handheld welding tongs in the prior art.
Disclosure of Invention
The utility model aims to provide a small pressure-adjustable welding tongs, which can solve the problem of inconvenient welding pressure of the small handheld welding tongs in the prior art.
The utility model is realized in the following way:
A small pressure-adjustable welding tongs comprises a shell, an upper electrode, a lower electrode, a button, a tensioning plate, an adjusting spring assembly, a stroke positioning assembly and a welding trigger assembly; the upper electrode is rotatably arranged in the shell through an upper clamp, the lower electrode is fixedly arranged in the shell through a lower clamp, and a rebound spring is arranged between the upper clamp and the lower clamp, so that the upper electrode can be in contact connection with the lower electrode; one end of the button is rotatably connected to the shell, the other end of the button is connected with the upper clamp through a tensioning plate, the button is located above the upper electrode, and the adjusting spring assembly, the stroke positioning assembly and the welding trigger assembly are arranged between the button and the upper electrode at intervals respectively.
The adjusting spring assembly comprises an adjusting spring and an adjusting nut; the adjusting spring is arranged between the button and the upper electrode, a first adjusting screw hole is formed in the button, the adjusting nut is matched and screwed in the first adjusting screw hole, the bottom of the adjusting nut is propped against the top of the adjusting spring, and the bottom of the adjusting spring is propped against the upper electrode.
The bottom of the adjusting nut is provided with a first positioning column which is coaxially inserted into the top of the adjusting spring.
The top of the upper electrode is provided with a second positioning column which is coaxially inserted into the bottom of the adjusting spring.
The stroke positioning assembly comprises a stroke positioning bolt and an abutting block; a second adjusting screw hole is formed in the button, a stroke positioning bolt is screwed in the second adjusting screw hole in a matched mode, and one end of the stroke positioning bolt is inserted between the button and the upper electrode; the abutting block is arranged at the top of the upper electrode, so that one end of the travel positioning bolt can be abutted with the abutting block.
The welding trigger assembly comprises a micro switch and a first abutting block; the micro-gap switch detachably sets up in the bottom of button and face up the electrode setting, and first butt piece sets up the top of upper electrode, makes micro-gap switch's trigger end can with first butt piece butt.
The outer side of the button is provided with a housing, and the adjusting spring assembly, the stroke positioning assembly and the welding trigger assembly are positioned in the housing.
The edge of the outer wall of the shell is in a round corner transition structure.
Compared with the prior art, the utility model has the following beneficial effects:
1. The utility model has the advantages that as the adjusting spring component and the stroke positioning component are arranged, the compression degree of the adjusting spring can be adjusted by screwing the adjusting nut through threads, thereby realizing stepless adjustment of welding pressure, and simultaneously, the control of the downward stroke can be realized by screwing the stroke positioning bolt through threads, thereby realizing the adjustment of welding pressure; the adjusting spring component and the stroke positioning component can be independently adjusted, so that the welding pressure has a larger adjusting range and higher adjusting precision, the welding quality is favorably controlled, and the adjusting mode is simple and convenient.
2. The welding trigger assembly is arranged, the trigger depth is controlled by the installation height of the micro switch and the distance between the micro switch and the second abutting block, so that the trigger end of the micro switch is contacted and conducted with the first abutting block when the upper electrode is in pressing contact with the lower electrode, the upper electrode and the lower electrode start discharge welding by a welding power supply, and the welding power supply continues to move downwards along with the button until the stroke positioning bolt abuts against the first abutting block, so that the stability of pressure can be ensured no matter how much the holding power is, the welding pressure of the upper electrode and the lower electrode can meet the design requirement, the welding operation can be completed, and the welding quality can be ensured.
Drawings
FIG. 1 is a schematic view of the construction of a miniature pressure-adjustable welding tongs of the present utility model;
fig. 2 is a schematic view of the internal structure of the miniature pressure-adjustable welding tongs of the present utility model.
In the figure, 1 shell, 2 upper electrode, 201 upper fixture, 3 lower electrode, 301 lower fixture, 302 rebound spring, 4 button, 401 housing, 5 tensioning plate, 601 adjusting spring, 602 adjusting nut, 603 first positioning column, 604 second positioning column, 701 travel positioning bolt, 702 second abutting block, 801 micro switch, 802 first abutting block, 803 triggering end.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
Referring to fig. 1 and 2, a small pressure-adjustable welding tongs comprises a shell 1, an upper electrode 2, a lower electrode 3, a button 4, a tensioning plate 5, an adjusting spring assembly, a stroke positioning assembly and a welding trigger assembly; the upper electrode 2 is rotatably arranged in the shell 1 through the upper clamp 201 through a rotating shaft, the lower electrode 3 is fixedly arranged in the shell 1 through the lower clamp 301, and a rebound spring 302 is arranged between the upper clamp 201 and the lower clamp 301, so that the upper electrode 2 can be in contact connection with the lower electrode 3; one end of the button 4 is rotatably connected to the housing 1, the other end of the button 4 is connected to the upper clamp 201 through the tensioning plate 5, the button 4 is located above the upper electrode 2, and the adjusting spring assembly, the stroke positioning assembly and the welding trigger assembly are respectively arranged between the button 4 and the upper electrode 2 at intervals.
The button 4 is pressed down, the upper electrode 2 is driven to rotate downwards through the adjusting spring component, the upper electrode 2 is enabled to be in contact with the lower electrode 3, the welding triggering component triggers an external welding power supply, and the welding power supply is started to enable the upper electrode 2 to be electrified and welded with the lower electrode 3. The pressure during welding of the upper electrode 2 and the lower electrode 3 is regulated through the regulating spring component and the stroke positioning component, and the regulating spring component and the stroke positioning component are independently regulated and do not influence each other, so that the welding pressure regulating precision and the pressure regulating range are improved, the regulation is more convenient and flexible, and the welding quality is controlled better. The tension plate 5 and the upper clamp 201 remain relatively fixed before the upper electrode 2 is brought into contact with the lower electrode 3.
Referring to fig. 2, the adjusting spring assembly includes an adjusting spring 601 and an adjusting nut 602; the adjusting spring 601 is arranged between the button 4 and the upper electrode 2, a first adjusting screw hole (not shown in the figure) is formed in the button 4, the adjusting nut 602 is screwed in the first adjusting screw hole in a matching way, the bottom of the adjusting nut 602 is propped against the top of the adjusting spring 601, and the bottom of the adjusting spring 601 is propped against the upper electrode 2.
Preferably, the adjusting nut 602 may be a round nut with external threads, and the first adjusting screw hole is matched with the specification of the adjusting nut 602, so that the adjusting nut 602 is screwed in the first adjusting screw hole through thread matching. When the adjusting nut 602 is screwed downwards by using the screw thread, the compression degree of the adjusting spring 601 can be increased, and the elasticity of the adjusting spring 601 is increased, so that the welding pressure is increased; on the contrary, when the adjusting nut 602 is rotated upward, the compression degree of the adjusting spring 601 can be reduced, and the elastic force of the adjusting spring 601 is reduced, thereby reducing the welding pressure.
The screw thread is screwed to enable the adjusting nut 602 to enable the elastic force adjusting precision of the adjusting spring 601 to be high, stepless adjustment is achieved, and the rotation adjustment is convenient. The width of the thread can be adaptively adjusted according to actual requirements.
Referring to fig. 2, a first positioning post 603 is formed at the bottom of the adjusting nut 602, and the first positioning post 603 is coaxially inserted into the top of the adjusting spring 601.
The first positioning column 603 can be used to control the mounting and compression linearity of the adjusting spring 601 from the top, preventing the adjusting spring 601 from being completely deformed, twisted, pulled out, etc., thereby precisely controlling the welding pressure through the adjusting spring 601.
Referring to fig. 2, a second positioning post 604 is formed on the top of the upper electrode 2, and the second positioning post 604 is coaxially inserted into the bottom of the adjusting spring 601.
The second positioning column 604 can be used for controlling the mounting and compression linearity of the adjusting spring 601 from the bottom, preventing the adjusting spring 601 from being completely deformed, twisted, separated and the like, thereby precisely controlling the welding pressure through the adjusting spring 601.
The length of the first positioning post 603 and the length of the second positioning post 604 can be adaptively adjusted according to the length of the adjusting spring 601, and the gap between the first positioning post 603 and the second positioning post 604 should be larger than the maximum stroke of the stroke positioning assembly, so as to avoid the contact between the first positioning post 603 and the second positioning post 604 to affect the pressing stroke of the button 4.
Referring to fig. 2, the stroke positioning assembly includes a stroke positioning bolt 701 and a second abutment block 702; a second adjusting screw hole is formed in the button 4, the stroke positioning bolt 701 is screwed in the second adjusting screw hole in a matching way, and one end of the stroke positioning bolt 701 is inserted between the button 4 and the upper electrode 2; the second abutment block 702 is provided on top of the upper electrode 2 so that one end of the stroke positioning bolt 701 can abut against the second abutment block 702.
The size of the second adjusting screw hole is matched and set according to the specification of the stroke positioning bolt 701, the distance between one end of the stroke positioning bolt 701 and the second abutting block 702 is controlled by screwing the thread of the stroke positioning bolt 701, and when the stroke positioning bolt 701 descends along with the button 4 to be in contact with the second abutting block 702, the button 4 reaches the maximum stroke, so that the stroke of the button 4 is controlled.
After the adjustment spring 601 is adjusted in advance to a certain compression degree, when the upper electrode 2 and the lower electrode 3 are in contact with each other, the adjustment spring 601 is further compressed until one end of the stroke positioning bolt 701 abuts against the second abutment block 702 as the push button 4 is pushed down. When the compression degree of the adjusting spring 601 is different and the maximum travel of the button 4 is the same, different welding pressures can be obtained; when the compression degree of the adjusting spring 601 is the same and the maximum travel of the button 4 is different, different welding pressures can be obtained; when the compression degree of the adjustment spring 601 and the maximum stroke of the push button 4 are different, different welding pressures can be obtained. Therefore, different welding pressures can be obtained through independent adjustment or synchronous adjustment of the adjusting spring 601 and the stroke positioning bolt 701 according to welding requirements, and the adjustment is more flexible, the range is larger, and the precision is higher.
Preferably, the stroke positioning bolt 701 and the second abutment block 702 are made of metal, so that the stroke positioning bolt 701 and the second abutment block 702 are rigidly abutted, and the stroke of the button 4 is reliably limited.
Referring to fig. 2, the welding trigger assembly includes a micro switch 801 and a first abutment block 802; the micro switch 801 is detachably disposed at the bottom of the button 4 and faces the upper electrode 2, and the first abutment block 802 is disposed at the top of the upper electrode 2, so that the trigger terminal 803 of the micro switch 801 can abut against the first abutment block 802.
The micro switch 801 is synchronously pressed down along with the button 4, preferably, the micro switch 801 can be mounted on the button 4 by a bolt and the like, and the disassembly and the adjustment are convenient. The distance between the triggering end 803 of the micro switch 801 and the first abutting block 802 can be changed through the adjustment of the installation height of the micro switch 801, so that the time of conducting triggering is controlled, when the upper electrode 2 is contacted with the lower electrode 3, the triggering end 803 is contacted with the first abutting block 802, an external welding power supply is started, and the upper electrode 2 and the lower electrode 3 start discharge welding. As the push button 4 is continuously pressed downwards until the designed welding pressure is reached, the upper electrode 2 and the lower electrode 3 are always in a discharge welding state.
Preferably, the micro switch 801 may be a double throw 3-pin 5A micro switch from Oulomb, model SS-5GL2 or 5GL13 or 5GL-F. By the contact of one trigger point of the micro switch 801 with the first abutment block 802, the micro switch 801 triggers the external welding power supply, and the mechanical triggering is more reliable. The micro switch 801 may also be a micro switch product of other brands and types, which will not be described here.
Referring to fig. 1, a housing 401 is formed on the outer side of the button 4, and an adjusting spring assembly, a stroke positioning assembly and a welding trigger assembly are located in the housing 401.
The housing 401 is integral with the button 4 and can be used to adjust the spring assembly, the travel positioning assembly and the welding trigger assembly through the housing 401 for extended service life.
Referring to fig. 1, the edge of the outer wall of the housing 1 is in a rounded transition structure, which accords with human engineering, is more comfortable to hold, and reduces fatigue caused by long-time operation.
Referring to fig. 1 and 2, the working process and working principle of the utility model are as follows:
The button 4 is pressed downwards to enable the welding end of the upper electrode 2 to be in contact with the welding end of the lower electrode 3, the button 4 is continuously pressed downwards to enable the triggering end 803 of the micro switch 801 to be in butt joint with the first butt joint block 802, and the micro switch 801 sends a signal to an external welding power supply for starting the welding power supply so as to realize discharge welding of the upper electrode 2 and the lower electrode 3. As the push button 4 continues to be pressed, the adjustment spring 601 is further compressed until the stroke positioning bolt 701 abuts against the second abutment block 702, at which time the final welding pressure is reached.
When the welding pressure needs to be regulated, the regulating nut 602 can be screwed by threads, and the regulating nut 602 is screwed downwards relative to the button 4, so that the compression degree of the regulating spring 601 is increased, and the welding pressure can be increased steplessly; conversely, when the adjusting nut 602 is rotated upward relative to the button 4, the compression degree of the adjusting spring 601 is reduced, and the welding pressure can be reduced steplessly.
Meanwhile, the stroke positioning bolt 701 can be screwed by threads, and the stroke positioning bolt 701 is screwed downwards relative to the button 4, so that the downward pressing stroke is reduced, and the welding pressure can be reduced; conversely, when the stroke positioning bolt 701 rotates upwards relative to the button 4, the pressing stroke is increased, and the welding pressure can be increased. The welding pressure can be effectively regulated by adjusting the compression degree and the downward stroke of the spring 601 through independent control, and the welding pressure regulation precision is high and the regulation range is large.
When the trigger depth is required to be adjusted, the installation height of the micro switch 801 can be adjusted, and the distance between the trigger end 803 of the micro switch 801 and the first abutting block 802 is changed, so that the trigger depth of the micro switch 801 is controlled to ensure the starting and welding of an external welding power supply.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. A small-size pressure adjustable welding tongs is characterized in that: the device comprises a shell (1), an upper electrode (2), a lower electrode (3), a button (4), a tensioning plate (5), an adjusting spring assembly, a stroke positioning assembly and a welding trigger assembly; the upper electrode (2) is rotatably arranged in the shell (1) through an upper clamp (201), the lower electrode (3) is fixedly arranged in the shell (1) through a lower clamp (301), and a rebound spring (302) is arranged between the upper clamp (201) and the lower clamp (301) so that the upper electrode (2) can be in contact connection with the lower electrode (3); one end of the button (4) is rotatably connected to the shell (1), the other end of the button (4) is connected with the upper clamp (201) through the tensioning plate (5), the button (4) is positioned above the upper electrode (2), and the adjusting spring assembly, the stroke positioning assembly and the welding trigger assembly are respectively arranged between the button (4) and the upper electrode (2) at intervals;
The adjusting spring assembly comprises an adjusting spring (601) and an adjusting nut (602); the adjusting spring (601) is arranged between the button (4) and the upper electrode (2), a first adjusting screw hole is formed in the button (4), the adjusting nut (602) is matched and screwed in the first adjusting screw hole, the bottom of the adjusting nut (602) is propped against the top of the adjusting spring (601), and the bottom of the adjusting spring (601) is propped against the upper electrode (2).
2. A miniature pressure-adjustable welding tongs as set forth in claim 1 wherein: the bottom of the adjusting nut (602) is provided with a first positioning column (603), and the first positioning column (603) is coaxially inserted into the top of the adjusting spring (601).
3. A miniature pressure-adjustable welding tongs as set forth in claim 1 wherein: the top of the upper electrode (2) is provided with a second positioning column (604), and the second positioning column (604) is coaxially inserted into the bottom of the adjusting spring (601).
4. A miniature pressure-adjustable welding tongs as set forth in claim 1 wherein: the stroke positioning assembly comprises a stroke positioning bolt (701) and a second abutting block (702); a second adjusting screw hole is formed in the button (4), a stroke positioning bolt (701) is screwed in the second adjusting screw hole in a matching way, and one end of the stroke positioning bolt (701) is inserted between the button (4) and the upper electrode (2); the second abutting block (702) is arranged on the top of the upper electrode (2) so that one end of the stroke positioning bolt (701) can abut against the second abutting block (702).
5. A miniature pressure-adjustable welding tongs as set forth in claim 1 wherein: the welding trigger assembly comprises a micro switch (801) and a first abutting block (802); the micro switch (801) is detachably arranged at the bottom of the button (4) and faces the upper electrode (2), and the first abutting block (802) is arranged at the top of the upper electrode (2), so that the triggering end (803) of the micro switch (801) can be abutted with the first abutting block (802).
6. A miniature pressure adjustable welding tongs as set forth in any one of claims 1, 4, 5 wherein: the outer side of the button (4) is provided with a housing (401), and the adjusting spring assembly, the stroke positioning assembly and the welding trigger assembly are positioned in the housing (401).
7. A miniature pressure-adjustable welding tongs as set forth in claim 1 wherein: the edge of the outer wall of the shell (1) is in a round corner transition structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322513963.9U CN220993096U (en) | 2023-09-15 | 2023-09-15 | Small pressure adjustable welding tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322513963.9U CN220993096U (en) | 2023-09-15 | 2023-09-15 | Small pressure adjustable welding tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220993096U true CN220993096U (en) | 2024-05-24 |
Family
ID=91090362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322513963.9U Active CN220993096U (en) | 2023-09-15 | 2023-09-15 | Small pressure adjustable welding tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220993096U (en) |
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2023
- 2023-09-15 CN CN202322513963.9U patent/CN220993096U/en active Active
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