Adjustable soldering pliers

Abstract

The utility model discloses an adjustable brazing welding clamp, which relates to the technical field of welding equipment and comprises a welding clamp assembly and a lifting appliance, the welding pliers assembly comprises a welding pliers frame and an adjusting mechanism, a fixed pliers clamp and a movable pliers clamp are arranged on the welding pliers frame, and heating elements are arranged on the opposite side faces of the fixed pliers clamp and the movable pliers clamp. The adjusting mechanism comprises a first adjusting assembly used for roughly adjusting the movable forceps holder and a second adjusting assembly used for finely adjusting the movable forceps holder. The lifting appliance comprises a lifting frame, a sling and a walking mechanism, the walking mechanism is movably arranged on the lifting frame, one end of the sling is connected with the walking mechanism, and the welding tongs frame is hung at the other end. The welding pliers assembly is moved to the construction position through the lifting appliance, the movable pliers clamp and the fixed pliers clamp which can be used for clamping are arranged on the welding pliers frame, and therefore the movable pliers clamp and the fixed pliers clamp are adjusted to be matched to clamp a coil connector and welding flux under the cooperation of the first adjusting assembly and the second adjusting assembly; welding is completed after the welding flux is melted through heating of the heating element, and the convenience of welding operation is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of welding equipment, and particularly relates to an adjustable brazing soldering gun. Background Art

[0002] When installing a power station generator set, it is necessary to weld the coil joints to the generator set. Conventionally, a welding torch is used for welding. However, during welding, one person needs to use a fixture to hold the coil joint and the solder, and another person needs to use a welding torch for welding. The inconvenient operation results in low welding efficiency. Utility Model Content

[0003] The main purpose of this application is to provide an adjustable brazing soldering gun, aiming to solve the problems of inconvenient operation and low welding efficiency in welding the coil joints of a generator set using a welding torch in the prior art.

[0004] The technical solution adopted by this application is as follows:

[0005] An adjustable brazing soldering gun includes a soldering gun assembly and a sling;

[0006] Among them, the soldering gun assembly includes:

[0007] A soldering gun frame, on which a fixed clamp and a movable clamp are arranged, and heating elements are arranged on the facing sides of the fixed clamp and the movable clamp; and

[0008] An adjusting mechanism for adjusting the movable clamp to approach and move away from the fixed clamp. The adjusting mechanism includes a first adjusting component for coarsely adjusting the movable clamp and a second adjusting component for finely adjusting the movable clamp;

[0009] The sling includes a hanging frame, a suspension cable, and a traveling mechanism. The traveling mechanism is movably arranged on the hanging frame, and one end of the suspension cable is connected to the traveling mechanism and the other end suspends the soldering gun frame.

[0010] Optionally, the hanging frame includes a support column and a cross rail fixed to the top of the support column, and the traveling mechanism is configured to move on the cross rail.

[0011] Optionally, the support column includes an outer sleeve, an inner column body, and a positioning pin. The inner column body is movably inserted into the outer sleeve. The outer sleeve is provided with a plurality of positioning holes along the axial direction. The inner column body is provided with pin holes that can correspond to different positioning holes. The positioning pin can be inserted into different positioning holes and extend into the pin holes to adjust the height of the support column.

[0012] Optionally, the traveling mechanism includes a traveling vehicle and a motor for driving the traveling vehicle. A hanging box is fixedly arranged on the traveling vehicle through side plates. A hoist is arranged in the hanging box, and the sling is wound around the hoist.

[0013] Optionally, the welding tongs frame includes a transverse plate and longitudinal plates integrally formed on both sides of the transverse plate. Guide rods for guiding the movement of the movable clamp are arranged between the longitudinal plates.

[0014] Optionally, the first adjustment assembly includes a telescopic oil cylinder. The cylinder body of the telescopic oil cylinder is slidably arranged on the guide rod. The telescopic rod of the telescopic oil cylinder is connected to the second adjustment assembly, and the movable clamp is fixedly connected to one end of the cylinder body of the telescopic oil cylinder.

[0015] Optionally, the second adjustment assembly includes a bushing rotatably arranged outside the welding tongs frame. The inner wall of the bushing is provided with threads, and one end of the telescopic rod of the telescopic oil cylinder is threadedly connected into the bushing.

[0016] Optionally, an operation handle with adjustable angle is further arranged outside the welding tongs frame. The operation handle is provided with a clamping button and a releasing button for controlling the opening and closing of the movable clamp, and a start / pause button for controlling the operation of the heating element.

[0017] Optionally, the operation handle includes a handle frame and a handle grip. The handle frame is fixed outside the welding tongs frame. The first end face teeth with holes are arranged at one end of the handle frame connecting the handle grip, and the second end face teeth with holes are arranged at one end of the handle grip connecting the handle frame. The first end face teeth and the second end face teeth are meshed and arranged coaxially with the same pin shaft.

[0018] Optionally, adjustable locking nuts are arranged at both ends of the pin shaft.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows:

[0020] An adjustable brazing welding tongs provided by an embodiment of the present application facilitates moving the welding tongs assembly to the construction position by arranging a lifting device. The movable clamp and the fixed clamp capable of clamping are arranged on the welding tongs frame. Thus, under the cooperation of the first adjustment assembly and the second adjustment assembly, the movable clamp and the fixed clamp are adjusted to clamp the coil joint and the solder. After the solder is melted by the heating element, the welding is completed, greatly improving the convenience of the welding operation. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the adjustable brazing welding tongs provided by an embodiment of the present application from one perspective;

[0022] Figure 2 is a schematic structural diagram of the welding tongs assembly from one perspective;

[0023] Figure 3 It is a schematic structural diagram of the welding tongs assembly from another perspective.

[0024] Description of reference numerals in the drawings:

[0025] 100 - Welding tongs assembly, 1 - Welding tongs frame, 2 - Fixed clamping jaw, 3 - Movable clamping jaw, 4 - Telescopic oil cylinder, 401 - Cylinder block, 402 - Telescopic cylinder rod, 5 - Bush, 6 - Bearing, 7 - Guide rod, 8 - Operating handle, 801 - Handle frame, 802 - Handle grip, 803 - First end face tooth, 804 - Second end face tooth, 805 - Pin shaft, 806 - Locking nut, 9 - Hoisting ring, 10 - Control button, 11 - Heating element, 12 - Reinforcing rib plate, 13 - Hanger, 131 - Support column, 1310 - Outer sleeve, 1311 - Inner column body, 1312 - Positioning pin, 132 - Cross rail, 14 - Traveling mechanism, 15 - Suspension box, 16 - Suspension cable. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0028] In the present application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In addition, if descriptions such as "first" and "second" are involved in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0030] Referring to the attached Figure 1 As shown, the embodiment of the present application provides an adjustable brazing welding tongs, which includes a welding tongs assembly 100 and a sling. The welding tongs assembly 100 is suspended by the sling. The sling is used to hoist the welding tongs assembly 100 to the construction position and suspend the sling during the construction process, facilitating the construction personnel to hold the welding tongs frame by hand and operate the welding tongs for welding construction.

[0031] Specifically, referring to Figure 1 As shown, the sling includes a suspension bracket 13, a suspension cable 16, and a traveling mechanism 14. Among them, the suspension bracket 13 includes a support column 131 and a cross rail 132. The cross rail 132 is welded to the top of the support column 131. The support column 131 includes an outer sleeve 1310, an inner column 1311, and a positioning pin 1312. The inner column 1311 is movably inserted into the outer sleeve 1310. The outer sleeve 1310 is provided with a plurality of positioning holes along the axial direction. The axis of the positioning hole is perpendicular to the axis of the outer sleeve 1310. A pin hole is provided on the side wall of the inner column 1311. The pin hole is opposite to different positioning holes through the telescopic adjustment of the inner column 1311. When the pin hole is aligned with the positioning hole, the positioning pin 1312 is inserted into the positioning hole and the pin hole to lock the positions of the outer sleeve 1310 and the inner column 1311, thereby determining the height of the support column 131. By inserting the positioning pin 1312 into different positioning holes and connecting the pin hole correspondingly, the height of the suspension bracket 13 can be adjusted to meet the welding requirements of different scenarios.

[0032] In the above, referring to Figure 1 As shown, the traveling mechanism 14 is configured to move on the cross rail 132. The traveling mechanism 14 includes a traveling vehicle and a motor for driving the traveling vehicle to travel. The traveling vehicle is fixedly provided with a suspension box 15 through a side plate. A winch is provided in the suspension box 15. The suspension cable 16 is wound around the winch. The other end of the suspension cable 16 is connected to the welding tongs assembly. Thus, the traveling vehicle carries the welding tongs assembly and moves along the cross rail 132 under the drive of the motor.

[0033] In this embodiment, the welding tongs assembly 100 includes a welding tongs frame 1 and an adjusting mechanism. Among them, a fixed clamp 2 and a movable clamp 3 are arranged on the welding tongs frame 1. The fixed clamp 2 and the movable clamp 3 are respectively arranged at opposite ends of the welding tongs frame 1. The fixed clamp 2 is fixedly arranged on the welding tongs frame 1, and the movable clamp 3 is movably arranged on the welding tongs frame 1. The movable clamp 3 can approach and move away from the fixed clamp 2 so as to clamp and release the coil joint to be welded and the solder. Heating elements 11 are arranged on the opposite sides of the fixed clamp 2 and the movable clamp 3 facing each other. The heating elements 11 are connected to an external power supply through electrodes. After the heating elements 11 are energized, they generate heat and reach the melting temperature of the solder, thereby melting the solder to weld the coil joint.

[0034] In this embodiment, the adjusting mechanism is used to adjust the movable clamp 3 to approach and move away from the fixed clamp 2. The adjusting mechanism includes a first adjusting component and a second adjusting component. The first adjusting component is used to roughly adjust the distance between the movable clamp 3 and the fixed clamp 2, and the second component is used to finely adjust the distance between the movable clamp 3 and the fixed clamp 2.

[0035] Generally, the coil joint models of the generator sets are the same, but the manufacturing precision of the welding electrodes used for welding is relatively low. Therefore, there are certain differences in the clamping distances between the movable clamp 3 and the fixed clamp 2 due to the manufacturing errors of the electrodes. It can be seen that for the adjustable brazing welding tongs provided in the embodiment of the present application, during the welding process, first, the movable clamp 3 is roughly adjusted by the first component so that the distance between the movable clamp 3 and the fixed clamp 2 is close to a preset distance. This preset distance is empirically equal to the maximum clamping distance between the coil joint and the electrode. Then, the movable clamp 3 is finely adjusted by the second component to adjust the distance between the movable clamp 3 and the fixed clamp 2 to the preset distance. In this way, most of the coil joints can be clamped and welded in a general manner. For the coil joints and electrodes that cannot be clamped due to manufacturing errors, they can be adjusted by the adjusting mechanism to complete the clamping, so as to achieve the purpose of improving the welding efficiency. Moreover, it is not difficult to find that compared with the conventional welding method, in the present application, a movable clamp 3 and a fixed clamp 2 capable of clamping are arranged on the welding tongs frame 1. Thus, under the cooperation of the first adjusting component and the second adjusting component, the movable clamp 3 and the fixed clamp 2 are adjusted to cooperate to clamp the coil joint and the solder, and the solder is melted by the heat generated by the heating element 11 to complete the welding, greatly improving the convenience of the welding operation. Among them, the heating element 11 is a material with a large resistance, preferably graphene. By connecting the electrode to graphene, the welding tongs press the brazing part of the two parts, and the current forms a loop through the brazing surface, and the resistance heat generated by the graphite block on the brazing surface during power-on heats to the brazing temperature to achieve welding.

[0036] During the welding process, the heating element 11 generates a large amount of heat, causing the temperature of the fixed clamp 2 and the movable clamp 3 to rise. To reduce the impact of excessive temperature on the service life of the movable clamp 3 and the fixed clamp 2, in this embodiment, cooling channels are provided inside the movable clamp 3 and the fixed clamp 2. The cooling channels are connected to a coolant inlet pipe and a coolant outlet pipe. Cooling water is introduced into the fixed clamp 2 and the movable clamp 3, so that the movable clamp 3 and the fixed clamp 2 are maintained within a reasonable temperature range.

[0037] As mentioned above, referring to Figure 1 and Figure 2 As shown, the welding tongs frame 1 includes a transverse plate and longitudinal plates integrally formed on both sides of the transverse plate. The transverse plate and the vertical plates on both sides form a "Π" - shaped structure. Among them, the fixed clamp 2 is fixedly installed on the inner side of one longitudinal plate through bolts, and a heat - insulating material is provided between the fixed clamp 2 and the longitudinal plate. At the same time, a guide rod 7 for guiding the movement of the movable clamp 3 is arranged between the two longitudinal plates. The movable clamp 3 moves along the guide rod 7 under the adjustment of the first adjustment component and the second adjustment component, so as to adjust the distance from the fixed clamping plate.

[0038] In one embodiment, as Figure 1 and Figure 2 shown, the first adjustment component includes a telescopic oil cylinder 4. The telescopic oil cylinder 4 includes a cylinder body 401 and a telescopic cylinder rod 402. The cylinder body 401 is provided with two through - holes along the axial direction, and the guide rod 7 passes through the through - holes, so that the telescopic oil cylinder 4 slides along the guide rod 7. The movable clamp 3 is fixedly installed at one end of the cylinder body 401 close to the fixed clamp 2 through bolts, and a heat - insulating material is provided between the movable clamp 3 and the cylinder body 401. At the same time, one end of the telescopic cylinder rod 402 extending out of the cylinder body 401 is connected to the second adjustment component. The second adjustment component includes a bushing 5 rotatably arranged outside the welding tongs frame 1. A bearing 6 is arranged outside the other longitudinal plate. The bushing 5 is arranged in the inner ring of the bearing 6. The inner wall of the bushing 5 is provided with threads, and one end of the telescopic cylinder rod 402 of the telescopic oil cylinder 4 is threadedly connected to the inside of the bushing 5. It is not difficult to imagine that since one end of the telescopic cylinder rod 402 is threadedly connected to the bushing 5 and the cylinder body 401 is slidably connected to the guide rod 7, when the telescopic oil cylinder 4 expands and contracts, the cylinder body 401 moves closer to or farther away from the fixed clamp 2 side along the guide rod 7, thereby driving the movable clamp 3 to approach or move away from the fixed clamp 2. At the same time, since the bushing 5 is threadedly connected to the telescopic cylinder rod 402 and the cylinder body 401 is restricted by the guide rod 7 and cannot rotate. Therefore, rotating the bushing 5 makes the telescopic cylinder rod 402 move back and forth inside the bushing 5, thereby driving the cylinder body 401 together with the movable clamp 3 to approach or move away from the fixed clamp 2, achieving the purpose of adjusting the distance between the movable clamp 3 and the fixed clamp 2.

[0039] In a preferred embodiment, a reinforcing rib plate 12 is further provided between the longitudinal plates. The reinforcing rib plate 12 can increase the structural stability of the welding tongs holder 1. At the same time, a lifting ring 9 is provided on one side of the reinforcing rib plate 12. The lifting ring 9 can be connected to a sling 16, so as to facilitate the welding tongs holder 1 to complete welding during welding.

[0040] In the above, for the convenience of welding operation, refer to Figure 1 and Figure 2 As shown, an operation handle 8 with adjustable angle is further provided on the outer side of the welding tongs holder 1. The operation handle 8 is provided with a plurality of control buttons 10, such as: a clamping button and a releasing button for controlling the opening and closing of the movable clamp 3, and a start / pause button for controlling the operation of the heating element 11. Among them, when the clamping button is pressed, the telescopic oil cylinder 4 starts to pressurize and stops when released. When the workpiece is clamped and the oil pressure switch is closed during the oil pressure rise, it enters the clamping and locking state. At this time, the releasing button still maintains the clamping state. When the releasing button is pressed during the pressurization process, the heating can be immediately stopped in the heating state, and the welding tongs can be opened again when pressed again. The start / pause button is only effective in the clamping state. Pressing it briefly starts the pulse heating mode, and pressing it for 3 seconds long enters the continuous heating mode. Pressing it again pauses the heating, and pressing it again starts the heating. This continues until the set total heating duration ends. If further heating is required, the manual mode can be used. Hold down the button to turn on the power for heating and release it to stop. When this button is held down in the open state of the welding tongs, the current system temperature and the set upper limit temperature can be displayed.

[0041] In a preferred embodiment, to achieve the adjustable angle of the operation handle 8, as Figure 1 and Figure 2 shown, the operation handle 8 includes a handle frame 801 and a handle grip 802. The handle frame 801 is fixed to the outer side of the welding tongs holder 1 by bolts. One end of the handle frame 801 connected to the handle grip 802 is provided with a first end face tooth 803 with holes, and one end of the handle grip 802 connected to the handle frame 801 is provided with a second end face tooth 804 with holes. The first end face tooth 803 and the second end face tooth 804 are engaged, and both are arranged with a pin shaft 805. And adjustable locking nuts 806 are provided at both ends of the pin shaft 805. It can be imagined that during use, when the holding angle of the operation handle 8 needs to be adjusted, first loosen the locking nut 806 on the pin shaft 805 downward, separate the handle frame 801 and the handle grip 802, then rotate the first end face tooth 803 and the second end face tooth 804 by a certain angle to engage, and then put on the locking nut 806, so as to realize the adjustment of the handle holding angle.

[0042] In summary, an adjustable brazing welding pliers provided by an embodiment of the present application moves the welding pliers assembly to the construction position through a sling. During construction, the constructor holds the welding pliers frame by hand, presses the welding pliers against the brazing position of two parts, and after power-on, the current forms a loop through the brazing surface, and the resistance heat generated by the graphite block on the brazing surface during power-on is used to heat to the brazing temperature to achieve welding. It can be used for brazing the joints of various large motors and transformer coils.

[0043] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An adjustable soldering clamp, characterized in that, It includes a welding tongs assembly and a sling; Among them, the welding tongs assembly includes: A welding tongs frame, on which a fixed clamp and a movable clamp are arranged, and heating elements are arranged on the opposite sides of the fixed clamp and the movable clamp; and An adjusting mechanism for adjusting the movable clamp to approach and move away from the fixed clamp. The adjusting mechanism includes a first adjusting component for coarsely adjusting the movable clamp and a second adjusting component for finely adjusting the movable clamp; The sling includes a hanging frame, a sling, and a traveling mechanism. The traveling mechanism is movably arranged on the hanging frame, and one end of the sling is connected to the traveling mechanism and the other end suspends the welding tongs frame.

2. The adjustable soldering tongs according to claim 1, characterized in that, The hanging frame includes a support column and a cross rail fixed to the top of the support column, and the traveling mechanism is configured to move on the cross rail.

3. The adjustable soldering pliers according to claim 2, characterized in that, The support column includes an outer sleeve, an inner column body, and a positioning pin. The inner column body is movably inserted into the outer sleeve. The outer sleeve is provided with a plurality of positioning holes along the axial direction. The inner column body is provided with pin holes that can correspond to different positioning holes. The positioning pin can be inserted into different positioning holes and extend into the pin holes to adjust the height of the support column.

4. The adjustable soldering pliers according to claim 2, wherein, The traveling mechanism includes a traveling vehicle and a motor for driving the traveling vehicle to travel. The traveling vehicle is fixedly provided with a hanging box through a side plate, and a winch is arranged in the hanging box. The sling is wound around the winch.

5. The adjustable soldering pliers according to claim 1, wherein, The welding tongs frame is composed of a cross plate and longitudinal plates integrally formed on both sides of the cross plate, and guide rods for guiding the movement of the movable clamp are arranged between the longitudinal plates.

6. The adjustable soldering pliers according to claim 5, characterized in that, The first adjusting component includes a telescopic oil cylinder. The cylinder body of the telescopic oil cylinder is slidably arranged on the guide rod. The telescopic rod of the telescopic oil cylinder is connected to the second adjusting component, and the movable clamp is fixedly connected to one end of the cylinder body of the telescopic oil cylinder.

7. The adjustable soldering pliers according to claim 6, characterized in that, The second adjusting component includes a sleeve rotatably arranged on the outside of the welding tongs frame. The inner wall of the sleeve is provided with threads, and one end of the telescopic rod of the telescopic oil cylinder is threadedly connected into the sleeve.

8. The adjustable soldering pliers according to claim 1, characterized in that, An operation handle with adjustable angle is further arranged on the outside of the welding tongs frame. The operation handle is provided with a clamping button and a releasing button for controlling the opening and closing of the movable clamp, and a start / pause button for controlling the operation of the heating element.

9. The adjustable soldering pliers according to claim 8, wherein, The operation handle includes a handle frame and a handle grip. The handle frame is fixed to the outside of the welding tongs frame. The first end face tooth with holes is arranged at one end of the handle frame connecting the handle grip. The second end face tooth with holes is arranged at one end of the handle grip connecting the handle frame. The first end face tooth and the second end face tooth are meshed, and they are arranged on the same pin shaft.

10. The adjustable soldering tongs according to claim 7, characterized in that, Adjustable locking nuts are arranged at both ends of the pin shaft.

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