Filter welding clamp tool for heating wire installation
By designing a welding fixture for positioning pins, a carrier plate, and a pressure plate, the problem of part misalignment during the welding process of filters used in heating wire assembly was solved, achieving high-precision and high-efficiency mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 成都新欣神风电子科技有限公司
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-05
AI Technical Summary
In the existing technology, the welding fixtures used for heating wire filters cannot be effectively positioned, resulting in part misalignment, low machining accuracy, inability to mass-produce, and long processing time.
A welding fixture tooling including a positioning pin, a carrying plate, a positioning plate and a pressure plate was designed. It is fastened with nuts to form an integral rigid structure, which ensures that the workpiece does not shift during the welding process and improves accuracy.
This enabled batch welding of multiple workpieces, improving processing accuracy and efficiency, reducing welding defects, and ensuring product quality.
Smart Images
Figure CN224196204U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling technology, and more specifically to a welding fixture for a heating wire filter. Background Technology
[0002] With societal development, the precision requirements for filter manufacturing are increasing. To prevent component misalignment during installation, appropriate tooling and fixtures are needed to ensure quick and accurate installation. Heating filter, used in heating wire circuits, is a type of power line filter and is essentially a low-pass filter. Its main function is to suppress conducted emissions, and its manufacturing quality determines the quality of the conducted signal. This particular workpiece is small, prone to misalignment during welding, and difficult to weld, making it highly susceptible to inaccuracies and quality defects. Therefore, general-purpose welding fixtures and tooling cannot be used.
[0003] In the existing technology, there are some fixtures for welding filters on heating wires, but these fixtures can generally only be used in general fields and cannot be used for welding positioning of the workpiece. Utility Model Content
[0004] The main purpose of this utility model is to propose a welding fixture for heating wire filters, in order to solve the problems in the prior art where the overall shape dimensions are out of tolerance due to part misalignment during the assembly and welding process of heating wire filters, and the problems that the processing time is long, the accuracy is not high, and the assembly and welding cannot be performed using general-purpose fixtures.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A welding fixture for a heating wire filter includes a positioning pin, a carrier plate, a positioning plate, and a pressure plate; the carrier plate, positioning plate, and pressure plate are arranged in parallel and detachably connected by the positioning pin; the heating wire filter passes through corresponding slots in the pressure plate, positioning plate, and carrier plate in sequence; the positioning pin is placed flat on the worktable and perpendicularly passes through the through holes in the carrier plate, positioning plate, and pressure plate, and is fastened by a nut.
[0007] In some embodiments, the surface of the carrier plate is provided with a square groove, and rectangular notches are provided through both sides of the groove for limiting the pins of the heating wire filter; the four sides of the carrier plate are provided with through round holes for fixing with positioning pins.
[0008] In some embodiments, the positioning plate has a row of through round holes on its surface, with a square notch with rounded corners between each row of round holes, and a boss at the two opposite corners of the square notch; the positioning plate has through round holes on its four sides for fixing with positioning pins.
[0009] In some embodiments, the pressure plate has a through-hole strip on its surface, which engages with a square notch with rounded corners on the positioning plate for positioning; the pressure plate has through-hole round holes on its four sides for engaging with positioning pins for fixing.
[0010] In some embodiments, the positioning plate is mounted above the carrying plate, and the pressure plate is mounted above the positioning plate and supported vertically by four positioning pins.
[0011] In some embodiments, the loading plate, positioning plate, and pressure plate are all plate-shaped frame structures, and the three are aligned in parallel.
[0012] In some embodiments, four nuts are also included, symmetrically installed at both ends of the locating pin, for fastening the load plate, the positioning plate, and the pressure plate.
[0013] In some embodiments, the positioning pin passes through the through holes of the carrying plate, the positioning plate and the pressure plate in sequence, and is then locked by a nut to form an integral rigid structure.
[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0015] This utility model is a welding fixture for a heated wire filter. By setting the above structure, multiple workpieces can be welded in batches, and the product quality is improved. It also features a compact structure, applicability, and high precision. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the system structure of this utility model patent;
[0017] Figure 2 This is a schematic diagram of the positioning pin for this utility model patent;
[0018] Figure 3 This is a schematic diagram of the carrier plate structure of this utility model patent;
[0019] Figure 4 This is a schematic diagram of the positioning plate structure of this utility model patent;
[0020] Figure 5 This is a schematic diagram of the pressure plate structure of this utility model patent;
[0021] Figure 6 This is a schematic diagram of the operation of this utility model.
[0022] The attached figures and their corresponding names are: 1-locating pin, 2-carrying plate, 3-locating plate, 4-pressure plate, 5-nut, 6-outer shell, 7-through core, 8-rectangular notch, 9-bore, 10-square notch with rounded corners, 11-strip hole. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0024] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0026] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0027] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.
[0028] The following will combine Figures 1-6 This application provides a detailed description of a welding fixture for a heated wire filter, as described in the embodiments of this application. It is worth noting that the following embodiments are merely illustrative of this application and do not constitute a limitation thereof.
[0029] Example 1:
[0030] See Figures 1-6 As shown, a welding fixture for a heating wire filter includes a fixture positioning pin 1, a carrying plate 2, a positioning plate 3, and a pressure plate 4. The heating wire filter is mounted on the fixture, and the fixture positioning pin 1 is passed through the corresponding holes on the carrying plate 2, the positioning plate 3, and the pressure plate 4 in sequence. The carrying plate 2, the positioning plate 3, and the pressure plate 4 are connected in sequence by the positioning pin 1, and the fixture positioning pin 1 is placed flat on the worktable.
[0031] In this embodiment, the loading plate 2, positioning plate 3, and pressure plate 4 are parallel, and all three plates are perpendicular to the positioning pin 1. The positioning pin 1 is used to connect the three plate surfaces.
[0032] Among them, the loading plate 2, the positioning plate 3 and the pressure plate 4 can all be disassembled and installed;
[0033] The surface of the carrying plate 2 is provided with square grooves, and rectangular notches are opened on both sides of each row of grooves. Through round holes are opened on all four sides of the plate surface for use in fixing the positioning pins 1.
[0034] The positioning plate 3 has through round holes on its surface, and a square notch 10 with rounded corners is opened between each row of round holes. There is a boss 9 on the diagonal of each row of square notches with rounded corners on the plate surface, which is used to match the square notch with rounded corners on the positioning plate 3 with the rectangular notch on the carrying plate 2 for positioning. There are through round holes on the four sides of the plate surface for the positioning pins 1 to connect and fix.
[0035] The pressure plate 4 has a through strip hole 11 on its surface, which is used for positioning the pressure plate 4 and the circular notch of the positioning plate 3. The plate surface has through round holes on all four sides, which are used for the positioning pins 1 to connect and fix it.
[0036] In use, the tooling positioning plate 3 is installed on the carrying plate 2, and the pressure plate 4 is installed on the carrying plate 2. The carrying plate 2, positioning plate 3, and pressure plate 4 are all plate-shaped frame structures. The positioning pin 1 is used to install into the through holes on the carrying plate 2, positioning plate 3, and pressure plate 4; specifically, the positioning pin 1 passes through the through hole on the carrying plate 2, the through hole on the positioning plate 3, and the through hole on the pressure plate 4 in sequence, and the positioning pin 1 is installed vertically on the carrying plate 2, positioning plate 3, and pressure plate 4; the carrying plate 2, positioning plate 3, and pressure plate 4 are parallel.
[0037] The working process of this utility model is as follows:
[0038] Step 1: Pass the 4 positioning pins through the mounting holes of the carrier plate.
[0039] Step 2: Place the workpiece shell 6 into the square recessed groove of the carrier plate, and place its two pins into the rectangular notch of the carrier plate at the same time;
[0040] Step 3: Place the workpiece to be welded through core 7 on the outer shell and position it by the boss on the positioning plate 3;
[0041] Step 4: Assemble the positioning plate to limit and fix the workpiece to be welded. Specifically, put the positioning plate on the 4 positioning pins so that the square notch with rounded corners fits on the workpiece shell and positions it.
[0042] Step 5: After all the above assembly is completed, cover the pressure plate and make the strip hole of the pressure plate pass through the through-core welding cup to reposition it.
[0043] Step 6: Install nuts on the locating pins to completely fix the workpiece on the fixture before welding.
[0044] In application of this utility model, the fixture is placed on the workbench. Because the heating wire filter has two protruding pins at its bottom, during assembly, to ensure the dimensional requirements of the heating wire filter, the filter's perimeter and all parts need to be positioned. This reduces dimensional deviations in the workpiece, improves workpiece accuracy, and effectively prevents and mitigates weld deformation. It also ensures the heating wire filter is in optimal welding condition, significantly reducing process defects and improving processing efficiency. As can be seen from the workpiece, the heating wire filter uses a carrier plate 2, a positioning plate 3, and a pressure plate 4 for parallel positioning. The carrier plate 2 is inserted into the positioning pin 1, the lower end of the heating wire filter's outer shell pins passes through the carrier plate 2, and the positioning plate 3 covers the upper end of the workpiece. After all workpieces have completed the above process, the pressure plate 4 is placed on top to complete positioning and fastening. Finally, tack welding is performed on the workpiece to complete the welding. This utility model, through the above structure, allows for batch welding of multiple workpieces and features a compact structure, applicability, and high precision.
[0045] The above description is only a preferred embodiment of the present utility model and is used to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A welding fixture for a heated wire filter, characterized in that, It includes a positioning pin (1), a carrying plate (2), a positioning plate (3), and a pressure plate (4); the carrying plate (2), the positioning plate (3), and the pressure plate (4) are arranged in parallel and are detachably connected by the positioning pin (1); the heating wire is equipped with a filter that passes through the corresponding slots on the pressure plate (4), the positioning plate (3), and the carrying plate (2) in sequence; the positioning pin (1) is placed flat on the workbench and passes vertically through the through holes of the carrying plate (2), the positioning plate (3), and the pressure plate (4), and is fastened.
2. The welding fixture for the heating wire filter according to claim 1, characterized in that, The surface of the carrier plate (2) is provided with a square groove, and rectangular notches (8) are passed through the two sides of the groove for limiting the pins of the heating wire filter; the four sides of the carrier plate (2) are provided with through round holes for fixing with positioning pins (1).
3. The welding fixture for the heating wire filter according to claim 1, characterized in that, The positioning plate (3) has a row of through round holes on its surface. A square notch (10) with rounded corners is opened between each row of round holes, and a boss (9) is provided at the two opposite corners of the square notch. The positioning plate (3) has through round holes on its four sides for fixing with positioning pins (1).
4. The welding fixture for the heating wire filter according to claim 3, characterized in that, The pressure plate (4) has a through strip hole (11) on its surface, which is used to position the positioning plate (3) with a square notch with rounded corners; the pressure plate (4) has through round holes on its four sides for fixing with positioning pins (1).
5. The welding fixture for the heating wire filter according to claim 1, characterized in that, The positioning plate (3) is installed above the loading plate (2), and the pressure plate (4) is installed above the positioning plate (3) and is vertically connected and supported by four positioning pins (1).
6. The welding fixture for the heating wire filter according to claim 1, characterized in that, The loading plate (2), positioning plate (3) and pressure plate (4) are all plate-shaped frame structures, and the three are aligned in parallel.
7. The welding fixture for the heating wire filter according to claim 1, characterized in that, It also includes four nuts (5), which are symmetrically installed at both ends of the positioning pin (1) to fasten the load plate (2), the positioning plate (3) and the pressure plate (4).
8. The welding fixture for a heated wire filter according to claim 7, characterized in that, The positioning pin (1) passes through the through holes of the carrying plate (2), positioning plate (3) and pressure plate (4) in sequence, and is then locked by the nut (5) to form an integral rigid structure.