Brazing welding pliers

Abstract

The utility model discloses brazing welding pliers, and relates to the technical field of welding equipment, the brazing welding pliers comprise 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 is used for adjusting the movable forceps holder to be close to or far away from the fixed forceps holder, and 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. According to the welding clamp, the welding clamp frame is arranged, the movable clamp and the fixed clamp which can be used for clamping are arranged on the welding clamp frame, and therefore the movable clamp and the fixed 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, and 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 to a brazing soldering gun. Background Art

[0002] When installing power station generator sets, it is necessary to weld the coil joints to the generator sets. 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 uses the 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 a brazing soldering gun, aiming to solve the problems of inconvenient operation and low welding efficiency in welding the coil joints of generator sets using a welding torch in the prior art.

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

[0005] A brazing soldering gun includes:

[0006] A soldering gun frame, on which a fixed clamp and a movable clamp are provided, and heating elements are arranged on the opposite sides of the fixed clamp and the movable clamp; and,

[0007] 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.

[0008] Optionally, the soldering gun frame includes a cross plate and longitudinal plates integrally formed on both sides of the cross plate, and a guide rod for guiding the movement of the movable clamp is arranged between the longitudinal plates.

[0009] Optionally, 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.

[0010] Optionally, the second adjusting component includes a bushing rotatably arranged outside the soldering gun 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 inside the bushing.

[0011] Optionally, a reinforcing rib plate is further arranged between the longitudinal plates, and a lifting ring is arranged on the reinforcing rib plate.

[0012] Optionally, an operation handle with adjustable angle is further arranged outside the soldering gun frame, and 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.

[0013] Optionally, the operating handle includes a handle frame and a handle grip. The handle frame is fixed to the outside of the welding pliers frame. At one end of the handle frame connected to the handle grip, there is a first end face tooth with holes. At one end of the handle grip connected to the handle frame, there is a second end face tooth with holes. The first end face tooth and the second end face tooth are meshed, and both are arranged coaxially with a pin shaft.

[0014] Optionally, both ends of the pin shaft are provided with adjustable locking nuts.

[0015] Optionally, cooling channels are arranged inside the movable clamp and the fixed clamp, and the cooling channels are connected with a coolant inlet pipe and a coolant outlet pipe.

[0016] Optionally, the heating element is made of graphene material.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows:

[0018] A brazing welding pliers provided by an embodiment of the present application, by arranging a welding pliers frame, and arranging a movable clamp and a fixed clamp capable of clamping on the welding pliers frame, thus adjusting the cooperation of the movable clamp and the fixed clamp to clamp the coil joint and the solder under the cooperation of the first adjusting component and the second adjusting component, and using the heating element to generate heat to melt the solder to complete the welding, greatly improving the convenience of the welding operation. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the brazing welding pliers provided by an embodiment of the present application from one perspective;

[0020] Figure 2 It is a schematic structural diagram of the brazing welding pliers provided by an embodiment of the present application from another perspective.

[0021] Explanation of the reference numerals in the drawings:

[0022] 1 - Welding pliers frame, 2 - Fixed clamp, 3 - Movable clamp, 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 - Hoop, 10 - Control button, 11 - Heating element, 12 - Reinforcing rib plate. Detailed Embodiments

[0023] 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.

[0024] 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 the specific posture changes, the directional indications will also change accordingly.

[0025] In the present application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; 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 communication inside 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 situations.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating 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 solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where 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 fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0027] Refer to the attached Figures 1 to 2As shown in the figure, an embodiment of the present application provides a brazing pliers, which includes a pliers frame 1 and an adjustment mechanism. Among them, a fixed clamp 2 and a movable clamp 3 are arranged on the pliers frame 1. The fixed clamp 2 and the movable clamp 3 are respectively arranged at opposite ends of the pliers frame 1. The fixed clamp 2 is fixedly arranged on the pliers frame 1, and the movable clamp 3 is movably arranged on the pliers 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. The facing sides of the fixed clamp 2 and the movable clamp 3 are provided with heating elements 11. 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, so as to melt the solder and weld the coil joint.

[0028] In this embodiment, the adjustment mechanism is used to adjust the movable clamp 3 to approach and move away from the fixed clamp 2. The adjustment mechanism includes a first adjustment component and a second adjustment component. The first adjustment 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.

[0029] Generally, the coil joint models of the generator set are the same, but the manufacturing accuracy of the welding electrodes is relatively low. Therefore, there are certain differences in the clamping distance between the movable clamp 3 and the fixed clamp 2 due to the manufacturing errors of the electrodes. It can be seen that in the brazing pliers provided by the embodiment of the present application, during the welding process, first, the first component is used to roughly adjust the movable clamp 3 so that the distance between the movable clamp 3 and the fixed clamp 2 is close to the preset distance. The preset distance is empirically equal to the maximum clamping distance between the coil joint and the electrode. Then, the second component is used to finely adjust the movable clamp 3 to adjust the distance between the movable clamp 3 and the fixed clamp 2 to the preset distance. In this way, most coil joints can be clamped and welded generally. For the coil joints and electrodes that cannot be clamped due to manufacturing errors, they can be adjusted by the adjustment 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 pliers frame 1. Thus, under the cooperation of the first adjustment component and the second adjustment 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, which greatly improves 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 pliers press the brazing place 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 is used to heat to the brazing temperature to achieve welding.

[0030] 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.

[0031] In the above, refer to Figure 1 and Figure 2 As shown, the welding tongs holder 1 includes a horizontal plate and vertical plates integrally formed on both sides of the horizontal plate. The horizontal 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 of the vertical plates by bolts, and a heat - insulating material is provided between the fixed clamp 2 and the vertical plate. At the same time, a guide rod 7 for guiding the movement of the movable clamp 3 is provided between the two vertical 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.

[0032] 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 by 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 holder 1. A bearing 6 is provided on the outside of the other vertical 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 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, because 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.

[0033] In a preferred embodiment, a reinforcing rib plate 12 is further disposed between the vertical plates. The reinforcing rib plate 12 can increase the structural stability of the welding tongs frame 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 lifting tool, so as to facilitate the welding tongs frame 1 to complete welding during welding.

[0034] 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 frame 1. The operation handle 8 is provided with a plurality of control buttons 10, such as: a clamping button and a release 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 lock state. At this time, the release button still maintains the clamping state. When the release 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 by pressing it again. The start / pause button is only effective in the clamped 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. Pressing and holding this button in the open state of the welding tongs can display the current system temperature and the set upper limit temperature.

[0035] 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 frame 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 meshed, 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 it is necessary to adjust the holding angle of the operation handle 8, 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 achieve the adjustment of the handle holding angle.

[0036] In summary, a brazing welding tong provided by an embodiment of the present application presses the brazing parts of two parts by the welding tongs, 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 is used to heat to the brazing temperature to achieve welding, and it can be used for brazing the joints of various large motors and transformer coils.

[0037] The above 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 principles of the present application shall be included within the protection scope of the present application.

Claims

1. A brazing pliers, characterized in that, Comprising: A welding tongs holder, 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 including a first adjusting component for coarsely adjusting the movable clamp and a second adjusting component for finely adjusting the movable clamp.

2. The brazing pliers according to claim 1, characterized in that, The welding tongs holder includes a transverse plate and longitudinal plates integrally formed on both sides of the transverse plate, and a guide rod for guiding the movement of the movable clamp is arranged between the longitudinal plates.

3. The brazing pliers according to claim 2, wherein, 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.

4. The brazing pliers according to claim 3, characterized in that, The second adjusting component includes a bushing rotatably arranged outside the welding tongs holder, 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 inside the bushing.

5. The brazing pliers according to claim 2, characterized in that, Reinforcing rib plates are also arranged between the longitudinal plates, and lifting rings are arranged on the reinforcing rib plates.

6. The brazing pliers according to claim 1, characterized in that, An operation handle with adjustable angle is also arranged outside the welding tongs holder, and 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.

7. The brazing pliers according to claim 6, characterized in that, The operation handle includes a handle frame and a handle grip, the handle frame is fixed outside the welding tongs holder, a first end face tooth with holes is arranged at one end of the handle frame connecting the handle grip, a 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 the two are arranged coaxially with a pin shaft.

8. The brazing pliers according to claim 7, characterized in that, Adjustable locking nuts are arranged at both ends of the pin shaft.

9. The brazing pliers according to claim 1, characterized in that, Cooling channels are arranged inside the movable clamp and the fixed clamp, and a coolant inlet pipe and a coolant outlet pipe are connected to the cooling channels.

10. The brazing pliers according to claim 1, characterized in that, The heating element is made of graphene material.

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