CN219319287U - Sliding rail sleeve tail corner profile detection device - Google Patents

Abstract

The utility model discloses a detection device for a tail corner profile of a sliding rail sleeve, which comprises a detection cup, wherein the detection cup is provided with a lip profile at the lower end, and the lip profile is the same as the theoretical profile of the tail corner of the sliding rail sleeve to be detected; the utility model provides a sliding rail sleeve tail corner molded surface detection device, which aims to realize good assembly of a drain nozzle and a cylinder drain hole and further realize the optimal welding effect.

Description

Sliding rail sleeve tail corner profile detection device

Technical Field

The application relates to the technical field of detection, in particular to a sliding rail sleeve tail corner molded surface detection device.

Background

The main function of the sliding rail sleeve is to provide a movement space for the sliding rail in an aircraft wing oil tank, so the sliding rail sleeve is a thin-wall, shell-type and cantilever beam stress structure, the central axis of the sliding rail sleeve is consistent with the movement track of the sliding rail, and the sliding rail sleeve is arc-shaped, namely an arc-shaped axis curved surface sleeve. One end of the sliding rail sleeve is designed into a flange plate structure and is connected to the wing front beam through a fastener; the drain nozzle is designed at the other end of the sliding rail sleeve and positioned at the lowest point of the installation position, and condensed water in the flying process is timely discharged out of the inside of the sleeve through the through hole in the middle of the drain nozzle, so that water accumulation in the sleeve is prevented from corroding.

In reality, the structure of the sliding rail sleeve is often serialized, however, the overall dimension of each specification sleeve is limited by the installation position of the sliding rail sleeve, and certain difference is presented. One of the typical structural types of the sliding rail sleeve is shown in fig. 1, the diameter phi of the cylinder diameter is generally between 100mm and 300mm, the wall thickness of a part is between 2mm and 6mm, the central axis of the sleeve is in a space arc shape, the radius R of the arc axis is between 500mm and 2000mm, and the length H of the sleeve is between 400mm and 700 mm.

A through hole is arranged in the middle of the drainage nozzle of the sliding rail sleeve and used for timely discharging condensed water generated in the flying process out of the inner cavity of the sleeve. Therefore, the axis of the drain hole on the cylinder body is positioned at the lowest point of the mounting position of the sleeve, namely at the corner part of the tail part of the bottom of the sleeve.

Aiming at the sliding rail sleeve structure, the sectional splicing by adopting a welding method is the best method for realizing the integrated manufacturing at present, namely, a drain hole with the diameter phi of 20-40 mm is formed at the tail end corner of the cylinder body by taking the lowest point of sleeve installation as the center, then the annular welding edge of the drain nozzle 1 is butt-welded at the drain hole, and finally the welding of the flange 3 and the cylinder body 2 is realized.

The cylinder is manufactured by adopting a sheet metal bending process, and particularly, the patent number 202011028729.1 is a manufacturing method of a variable cross-section bent cylinder, and the short half shaft of the ellipsoidal back cover is 20-50 mm. After the cylinder body is bent (including bulging), a certain rigid rebound is very easy to generate near an intersecting line of the cylinder body and the ellipsoidal back cover, so that the deviation between the molded surface of the intersecting line part and the theoretical molded surface is in the range of 1mm-2mm (usually, the detection is carried out by adopting a molded surface clamping plate matched with the whole cylinder bottom surface to match with a feeler gauge). The drain nozzle is usually manufactured by machining, and the machining precision of the profile can be controlled within +/-0.2 mm of the theoretical profile. After the preparation of the drain hole at the corner of the elliptic bottom seal at the tail part of the cylinder body is finished, when the drain hole is assembled with the drain nozzle in an annular butt joint way, the drain hole is influenced by the difference of processing precision of the drain hole and the cylinder body, and relatively large misalignment amount can be generated locally (especially at the intersecting line position of the cylinder body and the cylinder bottom). When the misalignment amount exceeds 20% or 0.3mm of the welding wall thickness and takes a smaller value, the quality of the welding joint is negatively affected to a certain extent, and the welding joint is easy to produce forming defects such as welding collapse and welding leakage, and stress concentration is easy to occur in the part service process to affect the bearing capacity of the component. The negative impact is positively correlated with the amount of misalignment. In order to overcome the influence of the misalignment amount on the quality of the welded joint as much as possible, on one hand, the misalignment amount of the pre-welding assembly is reduced as much as possible by repairing the welding edge of the drain nozzle, and on the other hand, an argon arc welding method is preferred, and the influence of removing food stagnation caused by the misalignment amount is compensated by filling enough welding wires.

The time and effort are wasted when the welding edge of the drain nozzle is repaired, and the efficiency is extremely low; when there is more filler wire, it is necessary to accompany an increase in welding deformation, an increase in softening phenomenon of the welded joint, and a decrease in the overall performance of the joint. To achieve better weld quality, it is desirable to tightly control the amount of assembly misalignment of the welded parts and minimize the weld heat input.

Based on this, especially propose a slide rail sleeve afterbody turning profile detection device to solve above-mentioned problem.

Disclosure of Invention

The utility model mainly aims at the problems and provides a sliding rail sleeve tail corner molded surface detection device which aims at realizing good assembly of a drain nozzle and a cylinder drain hole and further realizing the optimal welding effect.

In order to achieve the above purpose, the utility model provides a sliding rail sleeve tail corner molded surface detection device, which comprises a detection cup, wherein the detection cup is provided with a lip molded surface at the lower end, and the lip molded surface is the same as the theoretical molded surface of the sliding rail sleeve tail corner to be detected.

Further, the inner diameter of the lip profile is the same as the diameter of the weld at the theoretical profile of the tail corner of the sliding rail sleeve to be detected.

Further, the detection cup is provided with a middle cup body and a cup seat at the upper end, the cup body and the cup seat are vertically arranged, and the cup seat plane of the cup seat is a reference horizontal plane.

Further, an identification line is arranged in the middle of the cup body of the detection cup.

Further, a handle is arranged at the upper end of the detection cup.

Further, the cup seat is provided with one or more weight-reducing through holes, and the detection cup and the handle are connected through at least one fastener.

Further, the handle comprises a holding part and a mounting part, wherein the middle part of the holding part deforms and closes towards the axial direction of the detection cup.

Further, the mounting part is fixedly connected with the cup seat at the upper end of the detection cup through a radially penetrating screw.

Further, a sealing gasket is arranged between the detection cup and the handle.

Further, the handle is made of any one of nylon, plastic and rubber with an internally threaded metal screw sleeve, and the detecting cup is made of aluminum alloy or stainless steel.

Compared with the prior art, the sliding rail sleeve tail corner profile detection device provided by the utility model has the advantages that the lip profile is adopted to replace the conventional whole cylinder bottom profile, the clearance detection of the actual machining profile and the theoretical profile of the sliding rail sleeve tail corner drain hole part is realized by matching with the feeler gauge, the basis is provided for correcting the digital-analog process of the drain nozzle and machining and preparing, the good assembly of the drain nozzle and the cylinder drain hole is facilitated, and the welding quality is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a sliding rail sleeve to be detected according to the disclosure.

Fig. 2 is a schematic diagram of a partial structure at a in fig. 1.

Fig. 3 is a schematic structural diagram of a sliding rail sleeve tail corner profile detection device disclosed in the application.

Fig. 4 is a schematic structural view of a test cup disclosed in the present application.

Fig. 5 is a schematic view of a profile inspection device disclosed in the present application.

Fig. 6 is a left side view at B in fig. 5.

Reference numerals shown in the drawings: 1. a drain nozzle; 2. a cylinder; 3. a flange plate; 4. a detection cup; 41. a lip profile; 42. a cup body; 43. a cup holder; 44. a cup holder plane; 45. a weight-reducing through hole; 46. a marking line; 5. a handle; 6. a fastener.

Detailed Description

The following detailed description of the present utility model, taken in conjunction with the accompanying drawings, will clearly and fully describe the technical solutions of the embodiments of the present utility model, it being evident that the described embodiments are only some, but not all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The technical scheme of the present disclosure will be described below by taking a sliding rail sleeve tail corner profile detection device disclosed in the present application as an example.

As can be seen from the structural diagrams of the sliding rail sleeve tail corner profile detection device shown in fig. 1-6, the profile detection device can comprise a detection cup 4 and a handle 5 which form the appearance of the profile detection device, and the handle 5 can be made of nylon, plastic, rubber with an internally threaded metal screw sleeve and the like; the material of the sensing cup 4 may include aluminum alloy or stainless steel, but is not limited thereto.

Referring to fig. 3 and 4, the detecting cup 4 is in a shape of a thin-wall cavity cup, and comprises a lip profile 41 at the lower end, a cup body 42 in the middle and a cup seat 43 at the upper end; as shown in fig. 5, the lip profile 41 is identical to the theoretical profile of the rear corner (drain hole portion) of the slide rail sleeve, and the inner diameter Φ of the lip profile 41 is identical to the weld diameter Φ at the rear corner profile of the slide rail sleeve to be detected. So that the lip profile 41 of the test cup 4 is placed approximately at the position of the drain hole to be prepared at the tail corner of the slide rail sleeve in the test process.

With continued reference to fig. 3, the handle 5 is mounted on the upper end of the detecting cup 4, and includes a holding portion and a mounting portion, where the middle of the holding portion is deformed and folded toward the axial direction of the detecting cup, and the mounting portion is fixedly connected to the cup seat 43 on the upper end of the detecting cup 4 by a fastening member 6 that is radially penetrating, and the fastening member 6 may use a screw, a bolt, or the like for connection. For example, in the case of a screw, a threaded hole is formed in the lower end axis of the handle 5, and the connection between the detection cup 4 and the handle 5 is achieved through the threaded hole and the screw matched with the threaded hole.

In an embodiment of the present utility model, as shown in fig. 4, the cup body 42 and the cup seat 43 are vertically disposed, and the cup seat plane 44 of the cup seat 43 is a horizontal reference plane, through which the profile calibration of the lip profile 41 can be achieved. A weight-reducing through hole 45 is coaxially provided in the center of the cup holder 43.

In the above example of setting the weight-reducing through holes 45 in the cup seat 43, N weight-reducing through holes may be set in the cup seat 43 in a symmetrical radiation manner, where N is greater than or equal to 2, and the connection between the detecting cup 4 and the handle 5 is realized by at least 1 fastener 6, which is beneficial to the design of small, convenient and light weight, and is convenient for the operator to use.

In another embodiment of the present utility model, the wall thickness of the cup body 42 is 1mm-3mm; the wall thickness of the cup holder 43 is 3mm-6mm, and the machining precision of the molded surface is controlled within the range of the theoretical molded surface by limiting the size.

As a preferred embodiment of the first embodiment of the present utility model, a soft material such as a gasket may be added between the detecting cup 4 and the handle 5 to protect the plane precision of the cup holder plane 44.

As another preferred embodiment of the first embodiment of the present utility model, as shown in fig. 6, a marking line 46 is provided at the middle position of the cup body 42 of the detecting cup 4 to indicate the bottom direction of the sleeve, so that the use directivity of the detecting device can be more conveniently confirmed.

The method for detecting the profile of the tail corner of the sliding rail sleeve by adopting the profile detection device specifically comprises the following steps:

step S1: positioning before detection. Before the cylinder body is provided with a drain hole, the handle 5 of the detection device is held, the lip profile 41 of the detection cup 4 is firstly placed at the drain hole part to be prepared at the tail corner of the sliding rail sleeve, the identification line 46 of the detection cup 4 basically corresponds to the center of the cylinder bottom, and then the lip profile 41 is basically attached to the tail corner profile of the sleeve.

Step S2: and detecting the profile misalignment amount. The maximum misalignment between the lip profile 41 and the sleeve tail corner profile is detected by using a feeler gauge, and the maximum misalignment at the front side and the rear side is respectively delta x1 and delta x2.

Step S3: and D, digital-analog correction of the drain nozzle process and processing and preparing the drain nozzle. Correcting the corner part of the digital model of the drain nozzle process according to Deltax, wherein Deltax is the average value of Deltax 1 and Deltax 2; and then, processing the water draining nozzle according to the modified water draining nozzle process digital model.

Step S4: drain hole preparation and drain nozzle welding. And positioning and preparing the drain hole of the cylinder body by adopting a special fixture, positioning and welding the drain nozzle in the drain hole, and finally completing argon arc welding of the cylinder body and the drain nozzle.

Step S5: and (5) clamping and repairing the welding seam and detecting the quality. And (3) polishing and clamping the front and back residual heights of the welding seam, and then carrying out nondestructive detection on the quality of the welding seam by adopting an X-ray flaw detection method.

The feeler in step S2 includes a conventional feeler, a wedge feeler or a needle feeler.

In step S4, before the positioning welding, chemical cleaning or laser cleaning is needed before the welding of the cylinder and the drain nozzle so as to thoroughly remove greasy dirt and oxide films on the surface of the part.

Specifically, the detection method described above will be described in detail with reference to specific examples.

The drain hole with the detection diameter Φ of 30mm shown in fig. 2, the inner diameter Φ of the lip profile 41 shown in fig. 3 is also 30mm, and the maximum misalignment amounts of the actual machining profile and the theoretical profile (i.e. the lip profile 41) of the tail corner drain hole part of the sliding rail sleeve on the front side and the rear side are Δx1=1.0 mm and Δx2=1.2 mm respectively; taking the average value (1.1 mm) of Deltax 1 and Deltax 2 according to Deltax, and processing to prepare the drain nozzle after correcting the digital-analog of the drain nozzle process; the special fixture is adopted to position and prepare the drain hole of the cylinder body, the assembly misalignment amount of the finished drain nozzle and the drain hole can be controlled within the range of 0.2mm, the argon arc welding assembly precision requirement is met, the filling amount of welding wires in the welding process is small, the whole welding heat input is relatively low, and the welding deformation is relatively smaller. And after the welding line is clamped, X-ray flaw detection is carried out, and the welding joint meets the requirements of relevant quality detection standards.

The present utility model may be readily implemented by those skilled in the art upon reading the above detailed description. It should be understood that the utility model is not limited to such specific embodiments. On the basis of the disclosed embodiments, a person skilled in the art of basic can combine different technical features at will, so that different technical solutions are realized, and other technical solutions can be formed by combining additional functions in different forms. Accordingly, the scope of protection of the present application is limited only by the scope of the appended claims.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. The utility model provides a slide rail sleeve afterbody turning profile detection device which characterized in that, is including detecting the cup, it has the lip profile of lower extreme to detect the cup, the lip profile is the same with the theoretical profile of the slide rail sleeve afterbody turning that waits to detect.

2. The sliding rail sleeve tail corner profile detection device according to claim 1, wherein the inner diameter of the lip profile is the same as the weld diameter at the theoretical profile of the sliding rail sleeve tail corner to be detected.

3. The device for detecting the tail corner profile of the sliding rail sleeve according to claim 1, wherein the detecting cup is provided with a middle cup body and a cup seat at the upper end, the cup body and the cup seat are vertically arranged, and a cup seat plane of the cup seat is a reference horizontal plane.

4. A sliding rail sleeve tail corner profile detection device according to claim 3, wherein an identification line is arranged in the middle of the cup body of the detection cup.

5. A slide bushing tail corner profile detection device as in claim 3, wherein a handle is mounted at the upper end of the detection cup.

6. The slide rail sleeve tail corner profile detection device of claim 5, wherein the cup holder is provided with one or more weight-reducing through holes, and the connection of the detection cup and the handle is achieved by at least one fastener.

7. The slide bushing tail corner profile detection device of claim 5, wherein the handle includes a grip portion and a mounting portion, wherein a middle portion of the grip portion is deformed toward the axis of the detection cup.

8. The device for detecting the tail corner profile of the sliding rail sleeve according to claim 7, wherein the mounting portion is fixedly connected with the cup seat at the upper end of the detecting cup through a radially penetrating screw.

9. The slide bushing tail corner profile detection device of any one of claims 5-8, wherein a gasket is disposed between the detection cup and the handle.

10. The sliding rail sleeve tail corner profile detection device according to any one of claims 5-8, wherein the handle is made of any one of nylon, plastic and rubber with an internally threaded metal screw sleeve, and the detection cup is made of aluminum alloy or stainless steel.

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