Automatic welding device for string inverter

Abstract

The automatic welding device comprises a back plate, the back face of a shell is fixedly connected with the front face of the back plate, two sliding blocks are clamped to the inner side of the shell in a sliding mode, the upper portions of the outer walls of the two sliding blocks are movably connected with a through hole in the top of the shell, the tops of the sliding blocks are fixedly connected with a vertical plate, and the vertical plate is fixedly connected with the back face of the shell. A sleeve is movably connected to a groove in one side of the vertical plate, a transverse plate is fixedly connected to one side of the sleeve, and a baffle fixedly connected with the outer side of the vertical plate is attached to the top of the machined part. The utility model relates to the technical field of string type inverter processing equipment, through the cooperation among the vertical plate, the screw rod and the baffle plate, the positioning of two to-be-welded processing pieces is realized, the automatic fixation is realized, and the problem that the welding position deviation is easy to occur because the existing device is inconvenient to fix the to-be-welded parts is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of string inverter processing equipment, in particular to an automatic welding device for a string inverter. Background Art

[0002] The string inverter is one of the core devices in the solar power generation system. It is an important device that converts the DC power generated by the solar panels into AC power and supplies it to the power grid. The string inverter connects the solar panels in series into several strings, converges the DC power of multiple strings into the same inverter, and then converts the DC power into 60Hz AC power after processing by the inverter, and supplies the power grid. When processing the outer side of the inverter, an automatic welding device for the string inverter is provided.

[0003] The existing welding gun is used to weld and assemble the inverter shell. The welding gun refers to the part that performs the welding operation during the welding process. It is a tool for gas welding, shaped like a gun, with a nozzle at the front end, and sprays high-temperature flames as a heat source. It is flexible to use, convenient and fast, and has a simple process.

[0004] However, the existing device is not convenient for fixing the parts to be welded, and thus the problem of welding position deviation is prone to occur. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides an automatic welding device for a string inverter, which solves the problem that the prior device is inconvenient to fix the parts to be welded, and thus easily leads to welding position deviation.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an automatic welding device for a string inverter, comprising a back plate, a welding gun is arranged on the front of the back plate, a base is installed on the bottom of the back plate, two processed parts are bonded to the front of the back plate, a positioning mechanism is arranged on the front of the back plate, the positioning mechanism comprises a vertical plate, a baffle, a sleeve, a horizontal plate, an outer shell, a double-headed stud and a slider, the back of the outer shell is fixedly connected to the front of the back plate, two sliders are slidably clamped on the inner side of the outer shell, the upper part of the outer wall of the two sliders is movably connected to the top through hole of the outer shell, the top of the slider is fixedly connected to the vertical plate, a sleeve is movably connected to a groove on one side of the vertical plate, a horizontal plate is fixedly connected to one side of the sleeve, and a baffle fixed to the outer side of the vertical plate is bonded to the top of the processed part.

[0007] Preferably, the inner side of the slider is threadedly connected to a stud, the outer side of the stud is rotatably connected to both sides of the outer shell through bearings, one end of the stud is fixedly connected to a first motor, and the back side of the first motor is fixedly connected to the front side of the back plate.

[0008] Preferably, the inner side of the vertical plate is rotatably connected to a screw rod via a bearing, the top of the screw rod is fixedly connected to a second motor, the back side of the second motor is fixedly connected to the front side of the back plate, and the outer side of the screw rod is connected to the inner thread of the sleeve.

[0009] Preferably, a control panel and a control unit are installed on the front of the back plate, a circular groove is processed on the upper part of the front of the back plate, a round block is movably connected to the inner side of the circular groove, a threaded hole is processed on the circular groove, the round block is threadedly connected to the threaded hole through a bolt, the front of the round block is fixedly connected to a plate body through a curved rod, an electric slide rod is fixedly connected to the inner side of the plate body, an electric slider is installed on the outer side of the electric slide rod, and the back side of the electric slider is fixedly connected to the front side of the welding gun.

[0010] Preferably, a pressure sensor is fixedly connected to the through hole of the transverse plate, a pressing plate is fixedly connected to the top of the pressure sensor, and the top of the pressing plate is in contact with the bottom of the workpiece.

[0011] Beneficial Effects

[0012] The utility model provides an automatic welding device for a string inverter, which has the following beneficial effects: the automatic welding device for a string inverter realizes the positioning of two workpieces to be welded through the cooperation between the vertical plate, the screw rod and the baffle plate, realizes automatic fixation, and solves the problem that the existing device is not convenient for fixing the parts to be welded, and thus the welding position deviation is easy to occur.

[0013] Through the coordination among the cross plate, the pressure plate and the pressure sensor, the pressure change of the clamping structure is monitored, deformation of the workpiece caused by excessive pressure is avoided, and automatic fixation is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the plate body, the electric slide rod and the electric slider;

[0016] Figure 3 for Figure 1 Schematic diagram of the structure of the middle cross plate, pressure plate and pressure sensor;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the middle vertical plate, the screw rod and the first motor.

[0018] In the figure: 1, back plate, 2, base, 3, circular groove, 4, threaded hole, 5, vertical plate, 6, second motor, 7, screw, 8, sleeve, 9, control unit, 10, control panel, 11, first motor, 12, stud, 13, slider, 14, housing, 15, workpiece, 16, baffle, 17, round block, 18, bolt, 19, curved rod, 20, plate, 21, electric slide bar, 22, electric slide bar, 23, welding gun, 24, horizontal plate, 25, pressure plate, 26, pressure sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The existing device is not convenient for fixing the parts to be welded, and thus the problem of welding position deviation is prone to occur.

[0021] In view of this, an automatic welding device for a string inverter is provided. Through the cooperation between the vertical plate, the screw and the baffle, the positioning of two workpieces to be welded is realized, and automatic fixation is achieved, which solves the problem that the existing device is not convenient for fixing the parts to be welded, and thus the welding position deviation is prone to occur.

[0022] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0023] Embodiment 1: By Figure 1 , 2As can be seen from 4, an automatic welding device for a string inverter includes a back plate 1, a welding gun 23 is provided on the front of the back plate 1, and the model of the welding gun 23 is not limited. Two processed parts 15 are bonded to the front of the back plate 1, and the processed part 15 is a metal shell of the inverter. A positioning mechanism is provided on the front of the back plate 1, and the positioning mechanism includes a vertical plate 5, a baffle 16, a sleeve 8, a horizontal plate 24, a shell 14, a stud 12 and a slider 13. The back of the shell 14 is fixedly connected to the front of the back plate 1, and two sliders 13 are slidably clamped on the inner side of the shell 14. The slider 13 can move on the inner side of the shell 14, and the upper part of the outer wall of the two sliders 13 is movably connected to the top through hole of the shell 14. The top of the slider 13 is fixedly connected to the vertical plate 5, and the groove on one side of the vertical plate 5 is movably connected to the sleeve 8. The horizontal plate 24 is fixedly connected to one side of the sleeve 8, and the top of the processed part 15 is bonded to the baffle 16 fixedly connected to the outer side of the vertical plate 5.

[0024] In the specific implementation process, it is worth pointing out that the sleeve 8 can drive the horizontal plate 24 to move up and down, and the slider 13 can drive the two vertical plates 5 to move closer to or away from each other;

[0025] Furthermore, the inner side of the slider 13 is connected to a stud 12 through a thread, and the outer side of the stud 12 is rotatably connected to both sides of the housing 14 through a bearing, and the stud 12 can rotate through the bearing. One end of the stud 12 is fixedly connected to a first motor 11, and the model of the first motor 11 is not limited. The back of the first motor 11 is fixedly connected to the front of the back plate 1;

[0026] In the specific implementation process, it is worth pointing out that the first motor 11 can drive the stud 12 to rotate after being started. Since the threads on both sides of the stud 12 are opposite, the two sliders 13 can be driven to move closer to or away from each other during rotation.

[0027] Furthermore, the inner side of the vertical plate 5 is rotatably connected to a screw rod 7 through a bearing, the screw rod 7 can rotate through the bearing, the top of the screw rod 7 is fixedly connected to a second motor 6, the model of the second motor 6 is not limited, the back side of the second motor 6 is fixedly connected to the front side of the back plate 1, and the outer side of the screw rod 7 is threadedly connected to the inner side of the sleeve 8;

[0028] In the specific implementation process, it is worth pointing out that the second motor 6 can drive the screw 7 to rotate, and the screw 7 can drive the sleeve 8 inside the vertical plate 5 to move up and down when rotating;

[0029] Furthermore, a control panel 10 and a control unit 9 are installed on the front of the back plate 1. The control panel 10 can perform human-machine interaction with the control elements inside the control unit 9 by means of buttons, thereby realizing the control of the first motor 11 and other electronic components. A circular groove 3 is processed on the upper front of the back plate 1. A circular block 17 is movably connected to the inner side of the circular groove 3. A threaded hole 4 is processed on the circular groove 3. The circular block 17 is threadedly connected to the threaded hole 4 through a bolt 18. The front of the circular block 17 is fixedly connected to a plate body 20 through a curved rod 19. An electric slide bar 21 is fixedly connected to the inner side of the plate body 20. An electric slider 22 is installed on the outer side of the electric slider 21. The model of the electric slider 22 is not limited. The electric slider 22 can move on the outer side of the electric slide bar 21. The back of the electric slider 22 is fixedly connected to the front of the welding gun 23.

[0030] In the specific implementation process, it is worth pointing out that the electric slider 22 can drive the welding gun 23 to move up and down to achieve welding work, wherein the extension position of the welding gun 23 is not limited and is adjusted according to the width of the workpiece 15;

[0031] Specifically, when using the automatic welding device for the string inverter, the positioning of the two workpieces 15 to be welded is achieved through the cooperation between the shell 14, the stud 12 and the slider 13, and automatic fixation is achieved, which solves the problem that the existing device is not convenient for fixing the parts to be welded, and thus the welding position deviation is prone to occur.

[0032] Embodiment 2: By Figure 1-3 It can be seen that the through hole of the horizontal plate 24 is fixedly connected with a pressure sensor 26, and the model of the pressure sensor 26 is not limited. The top of the pressure sensor 26 is fixedly connected with a pressing plate 25, and the top of the pressing plate 25 is in contact with the bottom of the workpiece 15;

[0033] In the specific implementation process, it is worth pointing out that when the screw 7 indirectly drives the pressing plate 25 to fix, the pressure sensor 26 can monitor the pressure change. If it exceeds the set value, the signal will be transmitted to the control unit 9, and the control unit 9 can control the second motor 6 to stop working, thereby completing the automatic fixation;

[0034] Specifically, based on the above-mentioned first embodiment, through the cooperation between the cross plate 24, the pressure plate 25 and the pressure sensor 26, the pressure change of the clamping structure is monitored, deformation of the workpiece caused by excessive pressure is avoided, and automatic fixation is achieved.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for a string inverter, comprising a back plate (1), characterized in that: A welding gun (23) is arranged on the front of the back plate (1), a base (2) is installed on the bottom of the back plate (1), two processing parts (15) are attached to the front of the back plate (1), and a positioning mechanism is arranged on the front of the back plate (1); The positioning mechanism comprises a vertical plate (5), a baffle (16), a sleeve (8), a horizontal plate (24), a housing (14), a stud bolt (12) and a slide block (13); The back side of the shell (14) is fixedly connected to the front side of the back plate (1); two sliders (13) are slidably clamped on the inner side of the shell (14); the upper sides of the outer walls of the two sliders (13) are movably connected to the top through holes of the shell (14); the top of the slider (13) is fixedly connected to a vertical plate (5); a sleeve (8) is movably connected to a groove on one side of the vertical plate (5); a horizontal plate (24) is fixedly connected to one side of the sleeve (8); and a baffle (16) fixedly connected to the outer side of the vertical plate (5) is attached to the top of the processed part (15).

2. The automatic welding device for string inverters according to claim 1, characterized in that: The inner side of the slider (13) is connected to a stud bolt (12) through a thread, and the outer side of the stud bolt (12) is rotatably connected to the two sides of the housing (14) through a bearing. One end of the stud bolt (12) is fixedly connected to a first motor (11), and the back side of the first motor (11) is fixedly connected to the front side of the back plate (1).

3. The automatic welding device for string inverters according to claim 2 is characterized in that: The inner side of the vertical plate (5) is rotatably connected to a screw rod (7) via a bearing, the top of the screw rod (7) is fixedly connected to a second motor (6), the back side of the second motor (6) is fixedly connected to the front side of the back plate (1), and the outer side of the screw rod (7) is threadedly connected to the inner side of the sleeve (8).

4. The automatic welding device for string inverters according to claim 3 is characterized in that: A control panel (10) and a control unit (9) are installed on the front of the back plate (1); a circular groove (3) is processed on the upper part of the front of the back plate (1); a circular block (17) is movably connected to the inner side of the circular groove (3); a threaded hole (4) is processed on the circular groove (3); the circular block (17) is threadedly connected to the threaded hole (4) via a bolt (18); the front of the circular block (17) is fixedly connected to a plate body (20) via a curved rod (19); an electric slide rod (21) is fixedly connected to the inner side of the plate body (20); an electric slider (22) is installed on the outer side of the electric slider (21); the back side of the electric slider (22) is fixedly connected to the front side of a welding gun (23).

5. The automatic welding device for string inverters according to claim 4 is characterized in that: A pressure sensor (26) is fixedly connected to the through hole of the transverse plate (24), a pressing plate (25) is fixedly connected to the top of the pressure sensor (26), and the top of the pressing plate (25) is in contact with the bottom of the workpiece (15).

Images