Brazing equipment
By designing fixed and movable clamps in brazing equipment, combined with adjustment mechanism and controller, the problem of inconvenient operation of the coil joint of the welding generator set is solved, and efficient and automated welding is achieved.
Patent Information
- Application Number
- CN202421557354.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-03
AI Technical Summary
In the prior art, it is inconvenient to operate when welding the coil joints of the generator set using a welding torch and low welding efficiency.
A brazing equipment is designed, including brazing welding pliers, controllers and welding transformers. Welding is achieved by setting fixed pliers and movable pliers on the welding pliers frame, and adjusting the clamping spacing using the adjustment mechanism and controller, and combining the heating element to generate resistive heat.
It improves the convenience and efficiency of welding operations, can adapt to coil joints with different manufacturing errors, and realizes automated welding.
Smart Images
Figure CN223070595U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of welding equipment, and particularly relates to a brazing equipment. 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 uses 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 a brazing equipment, aiming to solve the problems of inconvenient operation and low welding efficiency when using a welding torch to weld the coil joints of a generator set in the prior art.
[0004] The technical solution adopted in this application is as follows:
[0005] A brazing equipment includes a brazing welding tongs, a controller, and a welding transformer;
[0006] Wherein, the brazing welding tongs include a welding tongs frame and an adjusting mechanism. A fixed clamp and a movable clamp are arranged on the welding tongs frame. Heating elements are arranged on the opposite sides of the fixed clamp and the movable clamp. The adjusting mechanism is used to adjust 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;
[0007] The controller is connected to the welding transformer, and the welding transformer provides different electrode voltages to the heating elements through a cable.
[0008] Optionally, the welding tongs frame includes a cross plate and longitudinal plates integrally formed on both sides of the cross plate. Guide rods for guiding the movement of the movable clamp are 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. The movable clamp is fixedly connected to one end of the cylinder body of the telescopic oil cylinder.
[0010] Optionally, the brazing equipment further includes an oil pump station, and the oil pump station is used to provide working oil pressure to the telescopic oil cylinder.
[0011] Optionally, the oil pump station includes an oil pump, a hydraulic oil tank, an oil pipe, an oil pressure gauge, and a solenoid valve. The oil pump is connected to the hydraulic oil tank through the oil pipe. The oil pump is connected to the telescopic cylinder through an outlet pipe. The telescopic cylinder is connected to the hydraulic oil tank through a return pipe. The solenoid valve and the oil pressure gauge are arranged on the outlet pipe.
[0012] 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 cylinder is threadedly connected to the inside of the bushing.
[0013] Optionally, an operation handle with adjustable angle is further arranged outside the welding tongs frame. The operation handle includes a handle frame and a handle grip. The handle frame is fixed outside the welding tongs frame. 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.
[0014] Optionally, adjustable locking nuts are arranged at both ends of the pin shaft.
[0015] Optionally, cooling channels are arranged inside the movable clamp and the fixed clamp. The cooling channels are connected with a coolant inlet pipe and a coolant outlet pipe.
[0016] Optionally, the brazing equipment further includes a water pump boosting station. The water pump boosting station includes a water pump, a water row, and a water tank. The water inlet side of the water pump is connected to the water tank through a water pipe, and the water outlet side is connected to the water row through a water pipe. The water row is connected to the coolant inlet pipe, and the coolant outlet pipe is connected to the water tank.
[0017] Compared with the prior art, the beneficial effects of this application are:
[0018] A brazing equipment provided by an embodiment of this application, by arranging a movable clamp and a fixed clamp capable of clamping on the welding tongs frame, the cooperation of the first adjustment assembly and the second adjustment assembly is used to adjust the cooperation of the movable clamp and the fixed clamp to clamp the coil joint and the solder, and then the controller is used to control the welding transformer to adjust the supply voltage to make the heating element heat up to melt the solder to complete the welding, greatly improving the convenience of the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic structural diagram of the brazing equipment provided by an embodiment of this application from one perspective;
[0020] Figure 2 is a schematic structural diagram of the brazing tongs from one perspective;
[0021] Figure 3It is a schematic structural diagram of the brazing welding tongs from another perspective.
[0022] Explanation of the reference numerals in the drawings:
[0023] 100 - Brazing welding tongs, 1 - Welding tongs 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 teeth, 804 - Second end face teeth, 805 - Pin shaft, 806 - Locking nut, 9 - Hoisting ring, 10 - Control button, 11 - Heating element, 12 - Reinforcing rib plate, 13 - Controller, 14 - Oil pump station, 15 - Water pump boosting station, 16 - Welding transformer. Specific implementation manners
[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the 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 of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts belong to the scope of protection of the present application.
[0025] 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 drawings). If the specific posture changes, the directional indications will also change accordingly.
[0026] In the present application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should 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 internal communication 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 situations.
[0027] In addition, if the embodiments of the present application involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are for descriptive purposes only, 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 results in contradictions 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.
[0028] Referring to the attached Figures 1 to 3 As shown, an embodiment of the present application provides a brazing device, including a brazing welding tongs 100, a controller 13, a welding transformer 16, an oil pump station 14, and a water pump boosting station 15. Among them, the brazing welding tongs 100 include 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 facing sides of the fixed clamp 2 and the movable clamp 3. The fixed clamp 2 and the movable clamp 3 are plate structures made of brass material. The controller 13 is electrically connected to the welding transformer 16. The fixed clamp 2 and the movable clamp 3 are connected to the positive and negative terminals of the welding transformer 16 through cables. The controller 13 is externally connected to an external power supply. When the fixed clamp 2 and the movable clamp 3 press the brazing joint of the two parts, an electric current forms a loop through the brazing surface, and the resistance heat generated by the graphite block on the brazing surface during energization heats up to the brazing temperature to achieve welding, reaching the melting temperature of the solder, so as to melt the solder and weld the coil joint.
[0029] 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 coarsely 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.
[0030] Generally, the coil connectors of a generator set have the same model, but the manufacturing precision of the welding electrodes 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 in the brazing equipment provided by the embodiments of the present application, during the welding process, first, the movable clamp 3 is roughly adjusted by the first component to make the distance between the movable clamp 3 and the fixed clamp 2 close to the preset distance, which is empirically equal to the maximum clamping distance between the coil connector and the electrode under experience. 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 coil connectors can be clamped and welded generally. For the coil connectors and electrodes that cannot be clamped due to manufacturing errors, the clamping can be completed by adjusting through the adjusting mechanism, 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 torch holder 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 connector 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 made of a material with a relatively large resistance, preferably graphene. By connecting the electrode to graphene, the welding torch presses the brazing joints 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.
[0031] During the welding process, since the heating element 11 generates a large amount of heat, which causes the temperatures of the fixed clamp 2 and the movable clamp 3 to rise. To reduce the impact of the over-high temperature on the service lives of the movable clamp 3 and the fixed clamp 2, in this embodiment, cooling channels are arranged 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. The coolant inlet pipe and the coolant outlet pipe are connected to a water pump boosting station 15. The water pump boosting station 15 includes a water pump, a water drain, and a water tank. The inlet side of the water pump is connected to the water tank through a water delivery pipe, and the outlet side is connected to the water drain through a water delivery pipe. The water drain is connected to the coolant inlet pipe to introduce cooling water into the cooling channels. The coolant outlet pipe is connected to the water tank, and after heat exchange with the water in the water tank, it is re-cooled and circulated to the cooling channels again. By introducing cooling water into the fixed clamp 2 and the movable clamp 3, the movable clamp 3 and the fixed clamp 2 are maintained within a reasonable temperature range.
[0032] In the above, refer to Figure 2 and Figure 3As shown in the figure, the welding tongs holder 1 is composed of 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 through bolts, and a heat - insulating material is arranged 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 arranged 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 clamp.
[0033] In one embodiment, as Figures 1 to 3 shown, the first adjustment component includes a telescopic oil cylinder 4. The telescopic oil cylinder 4 is connected to an oil pump station 14. The oil pump station 14 includes an oil pump, a hydraulic oil tank, an oil pipe, an oil pressure gauge, and an electromagnetic valve. The oil pump is connected to the hydraulic oil tank through an oil pipe, the oil pump is connected to the telescopic oil cylinder through an outlet pipe, the telescopic oil cylinder is connected to the hydraulic oil tank through a return pipe, and the electromagnetic valve and the oil pressure gauge are arranged on the outlet pipe. The oil pump station 14 can provide working oil pressure for the expansion and contraction of the telescopic oil cylinder 4.
[0034] 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 arranged 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 arranged outside 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, 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.
[0035] In a preferred embodiment, a reinforcing rib plate 12 is also arranged between the vertical 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 arranged 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 holder 1 to complete welding during welding.
[0036] 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 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. When the releasing button is pressed during the pressurization process, the heating can be immediately stopped in the heating state, and pressing again can open the welding tongs. The start / pause button is only effective in the clamped state. Pressing it briefly starts the pulse heating mode, and pressing and holding it for 3 seconds enters the continuous heating mode. Pressing it again pauses the heating, and pressing it again starts the heating until the set total heating duration ends. If further heating is required, the manual mode can be used. Hold it to energize and heat, and release it to stop. Pressing this button while the welding tongs are in the open state can display the current system temperature and the set upper limit temperature.
[0037] 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 the 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.
[0038] In summary, a brazing device provided by an embodiment of the present application controls a welding transformer through a controller to provide a voltage suitable for welding for a fixed clamp and a movable clamp, presses the welding tongs against the brazing joint of two parts, forms a loop through the brazing surface by current, and heats to the brazing temperature by the resistance heat generated by the graphite block on the brazing surface during energization to achieve welding, and can be used for brazing the coil joints of various large motors and transformers.
[0039] 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 principle of the present application shall be included in the protection scope of the present application.
Claims
1. A brazing device, characterized in that, It includes a brazing welding tong, a controller and a welding transformer; Among them, the brazing welding tong includes a welding tong frame and an adjusting mechanism. A fixed clamp and a movable clamp are arranged on the welding tong frame. Heating elements are arranged on the opposite sides of the fixed clamp and the movable clamp. The adjusting mechanism is used to adjust 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 controller is connected to the welding transformer, and the welding transformer provides different electrode voltages to the heating elements through cables.
2. The brazing apparatus according to claim 1, wherein The welding tong frame is composed of a cross plate and longitudinal plates integrally formed on both sides of the cross plate. A guide rod for guiding the movement of the movable clamp is arranged between the longitudinal plates.
3. The brazing apparatus according to claim 2, 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. The movable clamp is fixedly connected to one end of the cylinder body of the telescopic oil cylinder.
4. The brazing apparatus according to claim 3, wherein It also includes an oil pump station, which is used to provide working oil pressure to the telescopic oil cylinder.
5. The brazing apparatus according to claim 4, characterized in that, The oil pump station includes an oil pump, a hydraulic oil tank, an oil pipe, an oil pressure gauge and a solenoid valve. The oil pump is connected to the hydraulic oil tank through the oil pipe. The oil pump is connected to the telescopic oil cylinder through an outlet pipe. The telescopic oil cylinder is connected to the hydraulic oil tank through a return pipe. The solenoid valve and the oil pressure gauge are arranged on the outlet pipe.
6. The brazing apparatus according to claim 3, wherein, The second adjusting component includes a bushing rotatably arranged outside the welding tong frame. Threads are arranged on the inner wall of the bushing. One end of the telescopic rod of the telescopic oil cylinder is threadedly connected inside the bushing.
7. The brazing apparatus according to claim 1, characterized in that, An operation handle with adjustable angle is also arranged outside the welding tong frame. The operation handle includes a handle frame and a handle. The handle frame is fixed outside the welding tong frame. A first end face tooth with holes is arranged at one end of the handle frame connecting the handle. A second end face tooth with holes is arranged at one end of the handle connecting the handle frame. The first end face tooth and the second end face tooth are meshed and arranged on the same pin shaft.
8. The brazing apparatus according to claim 7, wherein, Adjustable locking nuts are arranged at both ends of the pin shaft.
9. The brazing apparatus according to claim 1, characterized in that, Cooling channels are arranged inside the movable clamp and the fixed clamp. The cooling channels are connected with a coolant inlet pipe and a coolant outlet pipe.
10. The brazing apparatus according to claim 9, characterized in that, It also includes a water pump boosting station, which includes a water pump, a water row and a water tank. One side of the water inlet of the water pump is connected to the water tank through a water pipe and the other side of the water outlet is connected to the water row through a water pipe. The water row is connected to the coolant inlet pipe, and the coolant outlet pipe is connected to the water tank.