High-precision bridge shell negative pressure rapid detection tool

Abstract

This utility model provides a high-precision axle housing negative pressure rapid detection fixture, relating to the field of axle housing production and inspection technology. This high-precision axle housing negative pressure rapid detection fixture includes a worktable, on the surface of which four sets of fixing components are fixedly connected. Two sets of mounting boxes are also fixedly connected to the surface of the worktable, with a first hydraulic rod fixedly connected to one side of each of the two mounting boxes. Considering the problems in axle housing production and inspection, this utility model designs the sealing gasket in a conical shape. The sealing gasket is inserted into the interior of the axle housing, ensuring a tight fit. After fitting, a micro air pump is activated, inflating the interior of the inflatable sealing ring. The inflated sealing ring expands, causing it to fit tightly against the inner wall of the axle housing, filling any minor gaps that may exist during initial fitting. This achieves a higher precision tight fit between the seal and the inner wall of the axle housing, thereby improving the accuracy of the device during inspection.

Description

Technical Field

[0001] This application relates to the field of bridge housing production and testing technology, and in particular to a high-precision bridge housing negative pressure rapid testing tool. Background Technology

[0002] The axle housing is a fundamental component for mounting the final drive, differential, half-shafts, wheel hubs, and suspension. Its main function is to support and protect the final drive, differential, and half-shafts. Simultaneously, the axle housing is also a major component of the driving system. The drive axle housing should have sufficient strength and rigidity, be lightweight, and facilitate the disassembly and adjustment of the final drive. The gearbox, filled with engine oil, is located inside the axle housing. If the axle housing leaks air, oil leakage will occur, accelerating the damage and wear of various components, reducing vehicle safety performance, and weakening vehicle stability. During the manufacturing process, the axle housing undergoes airtightness testing to ensure that there are no air leaks at the welds.

[0003] In most existing devices, the sealing gaskets are held against both ends of the bridge housing during testing. If the sealing gaskets deform during testing, gaps will appear between the sealing gaskets and the bridge housing, thus affecting the testing results of the device. Utility Model Content

[0004] This application provides a high-precision bridge housing negative pressure rapid detection tooling to solve the problem of bridge housing production inspection.

[0005] This application provides a high-precision bridge housing negative pressure rapid detection fixture, including a worktable. Four sets of fixing components are fixedly connected to the surface of the worktable. Two sets of mounting boxes are fixedly connected to the surface of the worktable. A first hydraulic rod is fixedly connected to one side of each of the two mounting boxes. A sealing component is fixedly connected to one end of each of the two sets of first hydraulic rods. Each of the four fixing components includes a support rod fixedly connected to the surface of the worktable. A mounting plate is fixedly connected to one side of each of the four support rods. A second hydraulic rod is fixedly connected to the top surface of each of the four mounting plates. A pressure plate is rotatably connected to one end of each of the four sets of second hydraulic rods. The two sealing components include a fixing plate fixedly connected to one end of each of the two sets of first hydraulic rods. A sealing gasket is fixedly connected to one side of each of the two fixing plates. A miniature air pump is fixedly connected to the top surface of each of the two fixing plates. An inflatable sealing ring is connected to one end of each of the two miniature air pumps via a hose.

[0006] Preferably, one end of each of the two sets of inflatable sealing rings is connected to a vent valve via a hose, and a shelf is fixedly connected to the bottom surface of each of the two sets of first hydraulic rods. The vent valve can release the gas inside the inflatable sealing ring.

[0007] Preferably, two sets of positioning frames are fixedly connected to the surface of the workbench, and each set of positioning frames is provided with a bidirectional lead screw, which is used to enable the positioning plate to move relative to each other.

[0008] Preferably, two sets of positioning plates are threaded to the outer sides of both sets of bidirectional lead screws, and a servo motor is fixedly connected to one end of each set of bidirectional lead screws. A motor housing is provided on the outer side of each set of servo motors, and the servo motors are used to drive the bidirectional lead screws to move.

[0009] Preferably, a control box is fixedly connected to one side of the workbench, and a display screen is fixedly connected to the top surface of the control box. The control box is used to control the operation of the device.

[0010] Preferably, a placement plate is fixedly connected to the top surface of the workbench, and an inflation groove is provided inside the placement plate, which is used to place the bridge shell.

[0011] Preferably, a mounting plate is fixedly connected to the side of the workbench, and an air pump is fixedly connected to the top surface of the mounting plate. The air pump is used to inflate the bridge housing so that it can be tested. Beneficial effects

[0012] Considering the issues of axle housing production and inspection, the sealing gasket is designed to be conical. The sealing gasket is inserted into the axle housing to ensure a tight fit. After the fit is achieved, a micro air pump is activated to inflate the inside of the inflatable sealing ring. The inflatable sealing ring expands, causing it to fit tightly against the inner wall of the axle housing. This fills any minor gaps that may exist during the initial fit, resulting in a more precise and tight fit between the seal and the inner wall of the axle housing. This improves the accuracy of the device during inspection.

[0013] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-precision bridge housing negative pressure rapid detection tool according to the present invention.

[0016] Figure 2 This is a schematic diagram of the sealing component structure of a high-precision bridge housing negative pressure rapid detection tool according to this utility model.

[0017] Figure 3 This is a schematic diagram of the positioning block structure of a high-precision bridge housing negative pressure rapid detection tool according to this utility model.

[0018] Figure 4 This is a schematic diagram of the fixed component structure of a high-precision bridge housing negative pressure rapid detection tool according to this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Workbench; 2. Fixing assembly; 201. Support rod; 202. Mounting plate; 203. Second hydraulic rod; 204. Pressure plate; 3. Mounting box; 4. First hydraulic rod; 5. Sealing assembly; 501. Fixing plate; 502. Sealing gasket; 503. Miniature air pump; 504. Inflatable sealing ring; 6. Air release valve; 7. Shelf; 8. Positioning frame; 9. Two-way lead screw; 10. Positioning plate; 11. Air pump; 12. Servo motor; 13. Motor box; 14. Control box; 15. Display screen; 16. Placement plate; 17. Mounting plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Unless otherwise defined, 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 application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0023] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used 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. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-4The high-precision bridge housing negative pressure rapid detection fixture shown includes a worktable 1. Four sets of fixing components 2 are fixedly connected to the surface of the worktable 1 to fix the bridge housing. Two sets of mounting boxes 3 are fixedly connected to the surface of the worktable 1. A first hydraulic rod 4 is fixedly connected to one side of each of the two mounting boxes 3. A sealing component 5 is fixedly connected to one end of each of the two first hydraulic rods 4 to further seal the bridge housing. Each of the four fixing components 2 includes a support rod 201 fixedly connected to the surface of the worktable 1. Each support rod 201 has a mounting plate 202 fixedly connected to one side, and each of the four mounting plates 202 has a second hydraulic rod 203 fixedly connected to the top surface of each mounting plate 202. Each of the four second hydraulic rods 203 has a pressure plate 204 rotatably connected to one end of each pressure plate 204. The two sealing assemblies 5 include a fixing plate 501 fixedly connected to one end of each of the two first hydraulic rods 4. Each of the two fixing plates 501 has a sealing gasket 502 fixedly connected to one side, and each of the two fixing plates 501 has a micro air pump 503 fixedly connected to the top surface of each micro air pump 503. Each of the two micro air pumps 503 has an inflatable sealing ring 504 connected to one end of each micro air pump 503 via a hose.

[0028] One end of each of the two sets of inflatable sealing rings 504 is connected to a vent valve 6 via a hose, and a shelf 7 is fixedly connected to the bottom surface of each of the two sets of first hydraulic rods 4. The vent valve 6 can release the gas inside the inflatable sealing ring 504.

[0029] Two sets of positioning frames 8 are fixedly connected to the surface of the workbench 1. Both sets of positioning frames 8 are equipped with bidirectional lead screws 9, which are used to enable the positioning plate 10 to move relative to each other.

[0030] Two sets of positioning plates 10 are threaded to the outer sides of the two sets of bidirectional lead screws 9. One end of each set of bidirectional lead screws 9 is fixedly connected to a servo motor 12. A motor box 13 is provided on the outer side of each set of servo motors 12. The servo motors 12 are used to drive the bidirectional lead screws 9 to move.

[0031] A control box 14 is fixedly connected to one side of the workbench 1, and a display screen 15 is fixedly connected to the top surface of the control box 14. The control box 14 is used to control the operation of the device.

[0032] The top surface of the workbench 1 is fixedly connected to a placement plate 16, and an inflation groove is provided inside the placement plate 16. The placement plate 16 is used to place the bridge shell.

[0033] The workbench 1 has a mounting plate 17 fixedly connected to its side, and an air pump 11 fixedly connected to its top surface. The air pump 11 is used to inflate the bridge housing so that it can be tested.

[0034] Working principle: When using this high-precision bridge housing negative pressure rapid detection fixture, the bridge housing is placed on the placement plate 16, and the first hydraulic rod 4 is activated. The first hydraulic rod 4 inserts the sealing gasket 502 into the interior of the bridge housing, making it fit tightly against the bridge housing. After fitting, the micro air pump 503 is activated, and the micro air pump 503 inflates the interior of the inflatable sealing ring 504. The inflatable sealing ring 504 expands during inflation, making it fit tightly against the inner wall of the bridge housing. This can fill any minor gaps that may exist during the initial fitting, so that the seal and the inner wall of the bridge housing achieve a more precise and tight fit, thereby improving the accuracy of the device during detection.

[0035] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A high-precision bridge housing negative pressure rapid detection fixture, comprising a worktable (1), characterized in that: Four sets of fixing components (2) are fixedly connected to the surface of the workbench (1), and two sets of mounting boxes (3) are fixedly connected to the surface of the workbench (1). A first hydraulic rod (4) is fixedly connected to one side of each of the two sets of mounting boxes (3), and a sealing component (5) is fixedly connected to one end of each of the two sets of first hydraulic rods (4). Each of the four sets of fixed components (2) includes a support rod (201) fixedly connected to the surface of the workbench (1). Each of the four sets of support rods (201) is fixedly connected to one side of a mounting plate (202). Each of the four sets of mounting plates (202) is fixedly connected to the top surface of a second hydraulic rod (203). Each of the four sets of second hydraulic rods (203) is rotatably connected to a pressure plate (204) at one end. The two sets of sealing components (5) include a fixing plate (501) fixedly connected to one end of the two sets of first hydraulic rods (4), a sealing gasket (502) fixedly connected to one side of each of the two sets of fixing plates (501), a micro air pump (503) fixedly connected to the top surface of each of the two sets of fixing plates (501), and an inflatable sealing ring (504) connected to one end of each of the two sets of micro air pumps (503) via a hose.

2. The high-precision bridge housing negative pressure rapid detection fixture according to claim 1, characterized in that: One end of each of the two sets of inflatable sealing rings (504) is connected to a vent valve (6) via a hose, and the bottom surface of each of the two sets of first hydraulic rods (4) is fixedly connected to a shelf (7).

3. The high-precision bridge housing negative pressure rapid detection fixture according to claim 1, characterized in that: Two sets of positioning frames (8) are fixedly connected to the surface of the workbench (1), and a two-way lead screw (9) is provided inside the two sets of positioning frames (8).

4. The high-precision bridge housing negative pressure rapid detection fixture according to claim 3, characterized in that: Two sets of positioning plates (10) are threaded to the outer side of the two sets of bidirectional lead screws (9), and a servo motor (12) is fixedly connected to one end of the two sets of bidirectional lead screws (9). A motor box (13) is provided on the outer side of the two sets of servo motors (12).

5. The high-precision bridge housing negative pressure rapid detection fixture according to claim 1, characterized in that: A control box (14) is fixedly connected to one side of the workbench (1), and a display screen (15) is fixedly connected to the top surface of the control box (14).

6. The high-precision bridge housing negative pressure rapid detection fixture according to claim 1, characterized in that: The top surface of the workbench (1) is fixedly connected to a placement plate (16), and an air inlet is provided inside the placement plate (16).

7. The high-precision bridge housing negative pressure rapid detection fixture according to claim 1, characterized in that: The side of the workbench (1) is fixedly connected to a mounting plate (17), and the top surface of the mounting plate (17) is fixedly connected to an air pump (11).

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