Vacuum brazing machine case part machining tool without screw connection
By designing a tooling fixture for machining vacuum brazing chassis parts without screws, the problems of chassis components not being able to be fixedly assembled and uneven stress on welds were solved, thereby improving brazing production efficiency and weld quality.
Patent Information
- Application Number
- CN202520074016.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In the existing technology, chassis components without screw connections cannot be fixedly assembled. Traditional tooling cannot ensure that the weld is evenly stressed, resulting in uneven weld gaps, loss of solder, and weld quality problems such as cracks and voids.
The tooling for machining the vacuum brazing chassis parts using screwless connection includes a tooling base, tooling cover plate, connecting rod, slide sleeve, clamping assembly, fixing nut and tightening nut. By adjusting the tightening nut and clamping assembly, the gap of the weld seam of the chassis panel is ≤0.1mm, ensuring uniform force distribution.
This solves the problem of fixing and assembling chassis components without screws, improves brazing production efficiency and weld quality, and avoids problems such as solder loss and uneven welds.
Smart Images
Figure CN223801724U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the vacuum brazing technical field, especially relate to a kind of screwless connection vacuum brazing machine case part machining frock. BACKGROUND
[0002] Aluminum alloy vacuum brazing machine case is usually integrated electronic component assembly inside the internal electronic components of avionics system aviation equipment.The general case design connects component and aluminum foil by connecting limiting device, i.e.process screw, and frock clamping ensures weld gap, in the case component of new design, including four component parts, due to the functional structure on component weld, four component parts only have inside limited structure due to structural reasons, without relevant connecting limiting device such as process screw, clamping groove etc., process screw cannot be used or increased by design process boss, and during vacuum brazing assembly, component cannot be fixed, foil-shaped solder is easy to slide, cannot be clamped, frock clamping cannot be uniformly stressed, molten solder is easy to lose, and welding quality cannot be guaranteed. SUMMARY
[0003] The utility model overcomes the shortcomings in the prior art, and starts from the structure of the screwless connection case parts, the case assembly method and the frock for case assembly to solve the problem that the case component cannot be fixed and assembled, the traditional frock cannot make the weld uniform stress, thereby causing uneven weld gap, cracks, cavities and other weld quality problems caused by solder loss, improve product brazing production efficiency and qualification rate.
[0004] TECHNICAL SCHEME
[0005] A kind of screwless connection vacuum brazing machine case part machining frock, it include: frock base, frock cover plate, connecting rod, slide pole cover, compression assembly, fixed nut, tighten nut;
[0006] Case panel is fixed in frock base and is installed frock cover plate after being loaded;
[0007] Four connecting rods are respectively connected to the four corners of frock base at one end, and the other end passes through frock cover plate;
[0008] Two slide pole covers pass through two connecting rods respectively;Compression assembly is installed between connecting rod and frock cover plate;
[0009] Fixed nut is screwed on connecting rod and is arranged on the upper surface of frock cover plate;
[0010] Tighten nut is arranged on the upper surface of slide pole cover on connecting rod.
[0011] Further, the compression assembly includes compression studs and springs.
[0012] The compression stud is in threaded connection with the slide sleeve, the spring is sleeved on the compression stud and located between the slide sleeve and the tool cover plate.
[0013] Further, three compression assemblies are uniformly installed on each slide sleeve.
[0014] Further, the tool base and the tool cover plate are both provided with lightening grooves, and the tool base is provided with threaded holes at four corners.
[0015] Further, the side of the welding seam of the tool base and the tool cover plate is designed with a limiting stopper which is located beyond the welding seam position and used for fixing the case panel.
[0016] Further, the gap between the welding seams of the case panel is less than or equal to 0.1 mm by adjusting the tightening nuts and the compression assemblies, and then welding is performed.
[0017] Beneficial effects:
[0018] Compared with the prior art, the beneficial effects of the utility model are that the assembly and brazing processing of the screwless connection vacuum brazing case can be adapted, the screwless connection case assembly cannot be fixed and assembled, the traditional tool cannot make the welding seam bear force uniformly, and thus the problems of uneven welding seam gap, cracks and cavities caused by solder loss and other welding quality problems are solved by the assembly and cooperation of the tool. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0020] Figure 1 It is a kind of screwless connection vacuum brazing case part processing tool schematic diagram;
[0021] 1 is a case component, 2 is a tool base, 3 is a tool cover plate, 4 is a connecting rod, a total of 4 sets, 5 is a slide sleeve, a total of 2 sets, 6 is a compression stud, a total of 6 groups, 7 is a fixing nut, a total of 4 groups, 8 is a tightening nut, a total of 4 groups, 9 is a spring, a total of 6 groups, 10 is a welding seam, a total of 4 groups, and 11 is a limiting stopper. DETAILED DESCRIPTION
[0022] Following, the embodiments of the present application are described through specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0023] A brazing tool for assembling a screwless connection case, as shown in Figure 1 , comprising:
[0024] A tool base, which is machined with a groove at the center position according to the size of the case assembly, and the assembly can be put into the groove, and the vertical assembly welding surface is fixed by the limiting stopper designed on the side of the base to be higher than the welding position, and there are threaded holes at the four corners for fixing the connecting rod.
[0025] A tool cover plate, which is machined with a groove at the center position according to the size of the case assembly, and the assembly can be put into the groove, and the vertical assembly welding surface is fixed by the limiting stopper designed on the side of the base to be higher than the welding position, and there are through holes at the four corners for the connecting rod to pass through, which can adjust the distance between the tool base plate and the tool cover plate.
[0026] A connecting rod, which is installed on the tool base, and the two ends have threads matched with the threaded holes of the tool base, and there are threads at the position of the height of the case assembly, which fix the tool cover plate through threads and butterfly nuts, and tighten the case components and the solder, and ensure the gap of the welding seams at the four corners of the case assembly.
[0027] A slide rod sleeve, which has through holes at the two ends for connection with the connecting rod, and uniformly distributed threaded holes in the middle according to the width of the case assembly, which can assemble the pressing stud, and the distance between the slide rod sleeve and the tool cover plate can be controlled by adjusting the upper tightening nuts of the two ends.
[0028] A pressing stud, which is matched with the middle threaded hole of the slide rod sleeve, and a spring is installed below the pressing stud, and the force exerted by the pressing stud and the spring on the tool cover plate can be controlled by adjusting the pressing stud, and then the welding seam gap of the middle part of the case assembly is controlled to ensure the brazing quality.
[0029] Embodiments
[0030] The figure 1 is a case part, which is spliced by four case panels, and the splicing places are brazed by using solder, and due to the use structure requirement, the case panel brazing places are not connected by screws, and only the inside limit is used to guarantee the inner cavity size, and due to the use of foil-shaped solder, the case panel and the solder cannot be fixed during clamping, and the clamping is not easy and the size cannot be positioned.
[0031] The figure 2 is a tool base, and 3 is a tool cover plate, which is processed by using stainless steel and the like, so that the parts and the tool cannot be adhered and interpenetrated during vacuum brazing, and meanwhile, the middle processing weight reduction groove is used to reduce the heat absorption of the tool and guarantee the strength, the case panel is first clamped into the tool base, and after being clamped, the case panel can be fixed, and after being fixed, the connecting rod in the figure 4 is installed, one end of the connecting rod is fixed in the threaded hole at the four corners of the tool base, and meanwhile, the tool cover plate in the figure 3 is penetrated into the connecting rod, the tool base and the tool cover plate are designed with 11 limit stop nuts which are higher than the position of the welding seam and can fix the horizontal case panel and the vertical case panel, the case assembly fixed by the tool can be assembled, the fixed nut in the figure 7 is adjusted according to the height of the case panel, and meanwhile, the foil-shaped solder is added at the welding seam in the figure 10, the fixed nut is adjusted, and it is ensured that the welding seams at the four corners of the case assembly are uniform and compacted.
[0032] Two groups of slide rod sleeves in the figure 5 are penetrated through the connecting rod, the pressing stud (6 groups) in the figure 6 and the spring (6 groups) in the figure 9 are installed on the slide rod sleeve, the pressing stud is connected with the slide rod sleeve through threads, the pressing stud is pressed against the tool cover plate, the spring is pressed against the tool cover plate, the tightening nut in the figure 8 is adjusted according to the height of the pressing stud to fix the position of the slide rod sleeve, the pressing stud in the figure 6 is adjusted, and meanwhile, the welding seam gap in the middle position is checked, the tightening nut and the pressing stud are repeatedly adjusted, the welding seam gap is ≤0.1mm through the adjustment of the tool, and meanwhile, the force of the compression spring acting on the tool cover plate is reduced to reduce the gap caused by deformation during vacuum brazing.
[0033] The above is only a specific embodiment of the utility model, and the utility model is described in detail, and the part not described in detail is a conventional technology. However, the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. The protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A screwless vacuum brazing machine case part machining tooling apparatus, characterized by: The tooling includes: tooling base, tooling cover plate, connecting rod, slide sleeve, compression assembly, fixed nut, tightening nut; The case panel is loaded into the tooling base and fixed, and the tooling cover plate is installed after loading; Four connecting rods are connected to the four corners of the tooling base at one end, and the other end passes through the tooling cover plate; Two slide sleeves pass through two connecting rods respectively; a compression assembly is installed between the connecting rod and the tooling cover plate; The fixed nut is screwed on the connecting rod and is arranged on the upper surface of the tooling cover plate; The tightening nut is arranged on the connecting rod and the upper surface of the slide sleeve.
2. The tooling of claim 1, wherein: The compression assembly includes: compression stud and spring; The compression stud is threadedly connected with the slide sleeve, and the spring is sleeved on the compression stud and located between the slide sleeve and the tooling cover plate.
3. The tooling of claim 2, wherein: Three compression assemblies are uniformly installed on each slide sleeve.
4. The tooling of claim 3, wherein: The tooling base and the tooling cover plate are both processed with weight reduction grooves, and threaded holes are arranged at the four corners of the tooling base respectively.
5. The tooling of claim 4, wherein: The side of the weld of the tooling base and the tooling cover plate is designed with a limiting stopper exceeding the position of the weld for fixing the case panel.
6. The tooling of claim 5, wherein: By adjusting the tightening nut and the compression assembly, the gap between the welds of the case panel is ≤0.1mm, and then welding is performed.