A welding power source suitable for automated assembly

Abstract

The utility model belongs to welding power supply technical field discloses a kind of welding power supply suitable for automatic assembly, the welding power supply includes upper layer component, lower layer component and case shell.Upper and lower layer of case shell is designed using U type sheet metal, reduce the sheet metal quantity, bending number and spot-welding nut quantity.Sidewall part uses card slot type mounting structure, it is beneficial to reduce the fixed screw of case shell.Connector is used for wiring between upper layer component and lower layer component, it is beneficial to save the operation work hour of artificial wiring after automatic assembly.By connector installation, it can concentrate the bundle line with stronger relevance in a connection terminal, it is convenient for the bundling of bundle line, control, feedback circuit and high-voltage, high-current circuit can also be separated, in addition, inverter IGBT control separate wiring can effectively reduce the interference between lines, in addition, using connector wiring makes no complex line interference in the process of automatic assembly, after automatic assembly, artificial installation line is more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of welding power source technology, and relates to a welding power source suitable for automated assembly. Background Technology

[0002] As welding technology continues to develop towards refinement, the overall structure of welding power sources is becoming increasingly complex, and the difficulties they face in the assembly and manufacturing process are becoming more and more prominent, which in turn increases the difficulty of automation.

[0003] In summary, the main technical problems currently existing in the production and assembly of welding power supplies are as follows: I. Sheet metal parts are diverse, and the processing and assembly are labor-intensive and time-consuming.

[0004] The welding power supply often consists of more than ten types of front, rear, bottom, and intermediate plates, as well as other small fixed sheet metal parts. This not only increases the sheet metal processing steps but also requires a large amount of manpower during the assembly phase, leading to increased working hours.

[0005] II. The chassis has too many mounting screws, making disassembly and maintenance inconvenient.

[0006] Due to the larger size of the power supply, the side panel design has increased in size, and the number of screws required for fixing has increased significantly. For example, some models require as many as 18 screws to fix the side panel, which greatly increases the workload of assembly and disassembly during later maintenance.

[0007] III. Complex wiring connections lead to low work efficiency.

[0008] There are many connecting wires between the upper control circuit and the lower main circuit of the welding power source. In order to meet the dust protection requirements, the wire holes are usually designed to be small, which makes the wire threading operation time-consuming and seriously affects the assembly efficiency.

[0009] The aforementioned problems collectively lead to a significant increase in the time required for the assembly and maintenance of welding power sources, severely restricting production efficiency and the convenience of product maintenance, and have become key challenges that urgently need to be addressed in the field of welding power source technology. Utility Model Content

[0010] The purpose of this invention is to propose a welding power source suitable for automated assembly. By improving the structure in terms of sheet metal structure and overall assembly, it is beneficial to achieve the modular assembly of the welding power source and provide conditions for automated assembly.

[0011] To achieve the above objectives, this utility model adopts the following technical solution: A welding power source suitable for automated assembly includes upper components, lower components, and a chassis housing; The chassis enclosure includes an upper U-shaped frame, a lower U-shaped frame, a top plate, and side plates; The upper U-shaped frame is located above the lower U-shaped frame, and the two are aligned and connected in the vertical direction. There are two side panels, and each side panel is located on a corresponding side of the upper U-shaped frame and the lower U-shaped frame respectively; wherein, each side panel is simultaneously connected to the corresponding side of the upper U-shaped frame and the lower U-shaped frame. The top plate is located above the upper U-shaped frame, and the top plate is connected to the upper U-shaped frame; An upper mounting space for placing upper components is formed between the top plate and the bottom of the upper U-shaped frame; a lower mounting space for placing lower components is formed between the bottom of the upper U-shaped frame and the bottom of the lower U-shaped frame.

[0012] Preferably, the upper U-shaped frame and the lower U-shaped frame are connected by a plug-in connection; wherein multiple pins / holes are provided at the bottom of the upper U-shaped frame; and corresponding holes / pins are provided at the top of the lower U-shaped frame. The bottom of the upper U-shaped frame and the top of the lower U-shaped frame are connected by a pin and a socket.

[0013] Preferably, the upper U-shaped frame / lower U-shaped frame has screw mounting holes at the mating points of the pin and the insertion hole, and spot-welded nuts are provided on the pins. The upper U-shaped frame and the lower U-shaped frame are connected by insertion and fastened by screws that mate with the spot-welded nuts.

[0014] Preferably, at least one horizontal hook sheet metal is provided on the inner side of the side panel at a position corresponding to the height of the upper U-shaped frame; A vertically upward first flange is provided at the bottom edge of the upper U-shaped frame; The upper inner side of the side panel is suspended from the first flange of the upper U-shaped frame by a horizontal hook.

[0015] Preferably, the upper part of the horizontal hook sheet metal is fitted with the inner surface of the side plate, and the lower part of the horizontal hook sheet metal is formed with the inner surface of the side plate to facilitate the insertion of the first flange.

[0016] Preferably, screw mounting holes are provided in the middle of the side plate at the position corresponding to the first flange and on the first flange; The side panels are connected to the upper U-shaped frame by screws.

[0017] Preferably, a vertical hook sheet metal is provided at a certain side edge on the lower inner side of the side panel; A second flange facing horizontally is provided on the side edge of the lower U-shaped frame corresponding to the side where the vertical hook sheet metal is located, and a notch is provided at the lower part of the second flange for the vertical hook sheet metal to be inserted horizontally. The width of the notch is greater than or equal to the width of the vertical hook sheet metal; The vertical hook sheet metal is inserted through a notch and forms a snap-fit ​​with the second flange position below the notch.

[0018] Preferably, a horizontally oriented second insertion slot is formed between the side of the vertical hook sheet metal and the inner surface of the side plate; wherein the second flange position below the notch extends into the second insertion slot to form a snap-fit ​​engagement.

[0019] Preferably, the bottom edge of the lower U-shaped frame is provided with a vertically upward third flange; the bottom of the side plate is provided with screw mounting holes at the position corresponding to the third flange and on the third flange, and the side plate is connected to the lower U-shaped frame by screws.

[0020] Preferably, the bottom of the upper U-shaped frame is provided with multiple connectors for connecting the upper components to the corresponding lower components.

[0021] This utility model has the following advantages: As described above, this utility model relates to a welding power source suitable for automated assembly. The welding power source comprises three parts: an upper component, a lower component, and a chassis housing. Both the upper and lower layers of the chassis housing adopt a U-shaped sheet metal design, reducing the number of sheet metal parts, bends, and spot welding nuts. Simultaneously, the side panels employ a slot-type mounting structure, which helps reduce the number of fixing screws on the chassis housing. The wiring between the upper component in the upper U-shaped frame and the lower component in the lower U-shaped frame abandons the traditional upper-lower layer connection method and instead uses connectors, saving time spent on manual wiring after automated assembly. Furthermore, using connectors allows for the concentration of closely related wires at a single connection terminal for easy bundling, separates control and feedback lines from high-voltage and high-current lines, and allows for separate wiring for the inverter IGBT control, effectively reducing interference between lines. Additionally, using connectors for wiring eliminates complex wiring interference during automated assembly, and makes manual wiring installation more convenient after automated assembly. This utility model improves the structure of sheet metal structure and overall assembly, which facilitates the modular assembly of welding power supplies and provides conditions for automated assembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of one side of the welding power source in an embodiment of the present invention (top plate and side plate not shown). Figure 2This is a schematic diagram of the other side of the welding power source in an embodiment of the present invention (top plate and side plate not shown). Figure 3 This is a schematic diagram of the assembly of the upper and lower U-shaped frames in an embodiment of this utility model; Figure 4 This is a schematic diagram of the upper U-shaped frame in an embodiment of the present invention; Figure 5 This is a schematic diagram of the lower U-shaped frame in an embodiment of the present invention; Figure 6 This is a front view of the lower U-shaped frame in an embodiment of this utility model; Figure 7 This is a schematic diagram of the side plate structure in an embodiment of the present invention (viewed from the inside of the side plate). Figure 8 This is a side view of the side plate in an embodiment of this utility model; Figure 9 for Figure 8 Enlarged view of part A in the image; Figure 10 This is a rear view of the side panel in an embodiment of the present invention (viewed from the inside of the side panel). Among them, 1-upper layer component, 2-lower layer component, 3-upper layer U-shaped frame, 4-lower layer U-shaped frame, 5-side plate, 6-insertion hole, 7-pin, 8-screw mounting hole, 9-spot weld nut, 10-horizontal hook sheet metal; 11-First insertion slot, 12-First flange, 13-Screw mounting hole, 14-Vertical hook sheet metal 14, 15-Second flange, 16-Notch, 17-Second insertion slot, 18-Third flange, 19-Connector. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1 like Figures 1 to 3 As shown in the figure, this embodiment describes a welding power source suitable for automated assembly. By improving the structure in terms of sheet metal structure and overall assembly, it is beneficial to achieve the modular assembly of the welding power source.

[0024] Specifically, in this embodiment, the welding power source includes an upper component 1, a lower component 2, and a chassis housing. The chassis housing includes an upper U-shaped frame 3, a lower U-shaped frame 4, a top plate (not shown), and side plates 5, as follows: Figure 7 As shown.

[0025] The upper U-shaped frame 3 is located above the lower U-shaped frame 4, and the two are aligned and connected vertically, as shown below. Figure 3As shown, the upper U-shaped frame 3 and the lower U-shaped frame 4 are connected by, for example, a plug-in connection.

[0026] Specifically, multiple sockets 6 are provided at the bottom of the upper U-shaped frame 3. For example, a socket 6 is provided at each corner of the bottom of the upper U-shaped frame 3 (the bottom of the upper U-shaped frame 3 is square, with a total of four corners).

[0027] Similarly, a corresponding pin 7 is provided at the top of the lower U-shaped frame 4, which corresponds to the socket 6. When the upper U-shaped frame 3 and the lower U-shaped frame 4 are aligned, the pin 7 can be inserted into the corresponding socket 6.

[0028] The bottom of the upper U-shaped frame and the top of the lower U-shaped frame are connected by a pin and a hole, which makes assembly convenient. In addition, both the upper and lower layers adopt a U-shaped sheet metal design, which helps to reduce the number of sheet metal parts and spot welding nuts.

[0029] Of course, the positions of the socket 6 and the pin 7 can also be interchanged. For example, the pin 7 can be set at the bottom of the upper U-shaped frame 3, and the socket 6 can be set at the top of the lower U-shaped frame 4, which can also achieve the above-mentioned plug-in connection method.

[0030] Taking the bottom of the upper U-shaped frame 3 as an example, a screw mounting hole 8 is provided at the mating point between the pin 7 and the socket 6 on the upper U-shaped frame 3. Figure 4 As shown. A spot-welded nut 9 is installed on the pin 7, as... Figure 5 As shown.

[0031] When the upper U-shaped frame 3 and the lower U-shaped frame 4 are aligned vertically and the pin 7 is inserted into the socket 6, the screw mounting hole 8 and the spot weld nut 9 are aligned horizontally. The screws are then tightened by sequentially inserting screws into the screw mounting hole 8 and the spot weld nut 9.

[0032] There are two side plates 5, and each side plate 5 is located on a corresponding side of the upper U-shaped frame 3 and the lower U-shaped frame 4, such as the left and right sides of the welding power source.

[0033] The left side panel 5 is connected to the corresponding left side of the upper U-shaped frame 3 and the lower U-shaped frame 4. Similarly, the right side panel 5 is connected to the corresponding right side of the upper U-shaped frame 3 and the lower U-shaped frame 4.

[0034] The top plate (not shown) is located above the upper U-shaped frame 3 and is connected to the upper U-shaped frame 3. Since the structure of the top plate is relatively conventional, it is not shown. The four corners of the top plate are fastened to the upper U-shaped frame 3 with screws.

[0035] An upper mounting space is formed between the top plate and the bottom of the upper U-shaped frame 3 for placing upper components; a lower mounting space is formed between the bottom of the upper U-shaped frame 3 and the bottom of the lower U-shaped frame 4 for placing lower components.

[0036] like Figures 7 to 10 As shown, this embodiment features a special side panel structure that facilitates assembly with the upper U-shaped frame 3 and the lower U-shaped frame 4, while also reducing the number of screws required for the chassis assembly process.

[0037] Specifically, a horizontal hook sheet metal 10 is provided on the inner side of the side panel 5 (i.e., the side facing the internal space of the chassis) at a position corresponding to the height of the upper U-shaped frame 3. For example, there are two horizontal hook sheet metal 10s. Figure 7 and Figure 10 As shown.

[0038] Taking a horizontal hook sheet metal 10 as an example, the upper part of the horizontal hook sheet metal 10 is fitted with the inner surface of the side plate 5, and the lower part forms a downward-facing first insertion slot 11 between it and the inner surface of the side plate to facilitate the insertion of the first flange. Figure 9 As shown.

[0039] Similarly, to accommodate the aforementioned horizontal hook sheet metal 10, a vertically upward first flange 12 is provided at the bottom edge of the upper U-shaped frame 3, such as... Figure 4 As shown, the first flange 12 extends along the front-back direction of the upper U-shaped frame 3.

[0040] The upper inner side of the side panel 5 is suspended from the first flange 12 of the upper U-shaped frame 3 by a horizontal hook sheet metal 10. A screw mounting hole 13 is provided in the middle of the side panel 5 at the position corresponding to the first flange 12, and on the first flange 12.

[0041] The side panel 5 is connected to the upper U-shaped frame 3 by screws.

[0042] A vertical hook sheet metal 14 is provided on a certain side edge of the lower inner part of the side panel 5, such as... Figure 7 As shown.

[0043] A horizontal second flange 15 is provided on the side edge of the lower U-shaped frame 4 corresponding to the side where the vertical hook sheet metal 14 is located, and a notch 16 is provided at the lower part of the second flange 15 for horizontal insertion of the vertical hook sheet metal. Figure 5 As shown.

[0044] definition Figure 5 The right side of the center position is the front side of the chassis, and the side edge mentioned above is the rear side edge of the chassis.

[0045] The width of the notch 16 is greater than or equal to the width of the vertical hook sheet metal 14. After the vertical hook sheet metal 14 is inserted through the notch 16, it moves down and forms a snap-fit ​​with the second flange 15 below the notch 16.

[0046] like Figure 7 As shown, a horizontally oriented second insertion slot 17 is formed between the side of the vertical hook sheet metal 14 and the inner surface of the side plate 5; the second flange 15 below the notch extends into the second insertion slot 17 to form a snap-fit ​​engagement.

[0047] like Figure 5 As shown, a vertically upward third flange 18 is provided at the bottom edge of the lower U-shaped frame 4.

[0048] Screw mounting holes 13 are provided at the bottom of the side panel 5 at the position corresponding to the third flange 18, and on the third flange 18 itself. Figure 5 and Figure 7 As shown, the side plate 5 is connected to the lower U-shaped frame 4 by screws.

[0049] As can be seen, the aforementioned special side panel structure significantly reduces the number of screws required to connect the side panel to the upper U-shaped frame 3 and the lower U-shaped frame 4. The specific installation process of the side panel 5 is as follows: First, align the vertical hook sheet metal 14 of the side panel 5 with the notch 16 and insert it into the notch 16. Then move it down so that the vertical hook sheet metal 14 and the second flange 15 below the notch 16 form a snap-fit ​​engagement.

[0050] At the same time, the horizontal hook sheet metal 10 of the side panel forms a snap-fit ​​engagement with the first flange 12 during the downward movement.

[0051] The side panel 5, the upper U-shaped frame 3, and the lower U-shaped frame 4 can then be installed using screws.

[0052] Furthermore, to address the issue of low operational efficiency due to complex wiring connections, this embodiment includes multiple connectors 19 at the bottom of the upper U-shaped frame 3, such as... Figure 1 As shown, they are used to connect the upper component 1 and the corresponding lower component 2.

[0053] The upper component 1 and the lower component 2 are unchanged from the upper and lower components in the prior art. The only improvement of this utility model is the connection method between the upper component 1 and the lower component 2.

[0054] Upper-layer components 1 include, for example, the upper-layer main control board, wire feeder control board, filter board 1, filter board 2, secondary IGBT driver board, upper-layer power supply board, etc. (only components related to the connection with the lower layer are shown).

[0055] The lower layer components 2 include lower layer control terminals, output terminals, lower layer CT1 (primary current feedback), T1 tertiary winding (main transformer feedback), CT2 (secondary side current feedback), lower layer inverter temperature controller THP1, secondary rectifier temperature controller THP2, re-arc circuit, secondary IGBT, lower layer rectifier bridge DR1, auxiliary transformer T2, lower layer fans FM1 and FM2, etc.

[0056] Similarly, lower component 2 only shows components related to the connection with the upper layer.

[0057] This utility model addresses the wiring between the upper component 1 and the lower component 2, abandoning the traditional upper and lower layer connection method and instead adopting connector installation, which helps to save the time of manual wiring after automated assembly.

[0058] For example, there are six connectors, named CON1-CON6. CON1 to CON4 are ELR-15V (female) and ELR-15V (male), and CON5 to CON6 are ELR-4V (female) and ELR-4V (male).

[0059] CON1 is connected to the first filter board on the upper layer, and the first filter board is connected to the wire feeder control board and the upper main control board in sequence; at the same time, CON1 is connected to the lower layer control terminal and output terminal on the lower layer.

[0060] CON2 is connected to the upper layer's No. 2 filter board, which in turn is connected to the upper layer's main control board. At the same time, CON2 is connected to the lower layer's CT1 (primary current feedback), T1 tertiary winding (main transformer feedback), and CT2 (secondary side current feedback).

[0061] CON3 is connected to the upper-level secondary IGBT driver board, which in turn is connected to the upper-level main control board. At the same time, CON3 is connected to the lower-level inverter temperature controller THP1, secondary rectifier temperature controller THP2, re-arc circuit, and secondary IGBT.

[0062] CON4 is connected to the upper power supply board; at the same time, CON4 is connected to the lower rectifier bridge DR1 and auxiliary transformer T2.

[0063] CON5 / CON6 is connected to the upper main control board; at the same time, CON5 / 6 is connected to the lower fans FM1 / FM2.

[0064] By using connector 19 for installation, closely related wiring bundles can be grouped together at a single terminal, facilitating bundle bundling and separating control and feedback lines from high-voltage and high-current lines. Furthermore, separate wiring for the inverter IGBT control effectively reduces interference between lines. In addition, using connector 19 for wiring creates conditions for automated assembly, eliminating complex wiring interference during automated assembly, and making manual wiring installation more convenient after automated assembly.

[0065] This utility model uses U-shaped sheet metal for the upper and lower layers, reducing the number of screws during assembly and improving automated assembly efficiency. The upper and lower layers adopt a pin-type design, making automated positioning more convenient. The side panels use a hook-type design, reducing fixing screws and making positioning easier and less prone to falling off during assembly. This utility model achieves modular assembly of welding power supplies by modifying three aspects: sheet metal, wire harness connection, and overall assembly, thus providing conditions for automated assembly.

[0066] Of course, the above description is only a preferred embodiment of the present utility model. The present utility model is not limited to the above-described embodiments. It should be noted that any equivalent substitutions or obvious modifications made by those skilled in the art under the guidance of this specification fall within the scope of this specification and should be protected by the present utility model.

Claims

1. A welding power source suitable for automated assembly, comprising upper components, lower components, and a chassis housing; characterized in that, The chassis shell includes an upper U-shaped frame, a lower U-shaped frame, a top plate, and side plates; The upper U-shaped frame is located above the lower U-shaped frame, and the two are aligned and connected in the vertical direction. There are two side panels, and each side panel is located on a corresponding side of the upper U-shaped frame and the lower U-shaped frame respectively; wherein, each side panel is simultaneously connected to the corresponding side of the upper U-shaped frame and the lower U-shaped frame. The top plate is located above the upper U-shaped frame, and the top plate is connected to the upper U-shaped frame; An upper mounting space for placing upper components is formed between the top plate and the bottom of the upper U-shaped frame; a lower mounting space for placing lower components is formed between the bottom of the upper U-shaped frame and the bottom of the lower U-shaped frame.

2. The welding power source suitable for automated assembly according to claim 1, characterized in that, The upper U-shaped frame and the lower U-shaped frame are connected by a plug-in joint; the bottom of the upper U-shaped frame is provided with multiple pins / holes; and the corresponding pins / holes are provided at the top of the lower U-shaped frame. The bottom of the upper U-shaped frame and the top of the lower U-shaped frame are connected by a pin and a socket.

3. The welding power source suitable for automated assembly according to claim 2, characterized in that, The upper U-shaped frame / lower U-shaped frame has screw mounting holes at the corresponding pin and socket joints. Spot-welded nuts are provided on the pins. The upper U-shaped frame and the lower U-shaped frame are plugged in and fastened by screws that cooperate with the spot-welded nuts.

4. The welding power source suitable for automated assembly according to claim 1, characterized in that, The inner side of the side panel is provided with at least one horizontal hook sheet metal at the height position corresponding to the upper U-shaped frame; A vertically upward first flange is provided at the bottom edge of the upper U-shaped frame; The upper inner side of the side panel is suspended from the first flange of the upper U-shaped frame by a horizontal hook.

5. The welding power source suitable for automated assembly according to claim 4, characterized in that, The upper part of the horizontal hook sheet metal is fitted with the inner surface of the side plate, and the lower part of the horizontal hook sheet metal is formed with the inner surface of the side plate to form a downward-facing first insertion slot for easy insertion of the first flange.

6. The welding power source suitable for automated assembly according to claim 4, characterized in that, Screw mounting holes are provided in the middle of the side plate at the position corresponding to the first flange and on the first flange. The side panel is connected to the upper U-shaped frame by screws.

7. The welding power source suitable for automated assembly according to claim 1, characterized in that, A vertical hook sheet metal is provided at one side edge of the lower inner part of the side panel; A second flange facing horizontally is provided on the side edge of the lower U-shaped frame corresponding to the side where the vertical hook sheet metal is located, and a notch is provided at the lower part of the second flange for the vertical hook sheet metal to be inserted horizontally. The width of the notch is greater than or equal to the width of the vertical hook sheet metal; The vertical hook sheet metal is inserted through the notch and engages with the second flange below the notch.

8. The welding power source suitable for automated assembly according to claim 7, characterized in that, A horizontally oriented second insertion slot is formed between the side of the vertical hook sheet metal and the inner surface of the side plate; wherein the second flange position below the notch extends into the second insertion slot to form a snap-fit ​​engagement.

9. The welding power source suitable for automated assembly according to claim 7, characterized in that, The lower U-shaped frame has a vertically upward third flange at its bottom edge; the bottom of the side plate has screw mounting holes at the position corresponding to the third flange and on the third flange, and the side plate is connected to the lower U-shaped frame by screws.

10. The welding power source suitable for automated assembly according to claim 1, characterized in that, The bottom of the upper U-shaped frame is provided with multiple connectors for connecting the upper components to the corresponding lower components.

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