Composite gas detection tool for low floor axle housing

Abstract

The utility model discloses a low floor axle housing composite gas detection tool which comprises supporting legs and a supporting plate, the supporting legs are arranged at the bottom of the supporting plate, a displacement track is arranged at the top of the supporting plate, a lower sealing support is connected above the displacement track in a sliding mode, and a bottom sealing cover is arranged at the top of the lower sealing support. A side air cylinder is arranged on the right side of the lower sealing support, a side edge sealing cover is arranged at the end of the side air cylinder, a side supporting plate is vertically arranged behind the lower sealing support, a top plate is arranged at the top of the side supporting plate, an upper air cylinder is arranged above the top plate, and an upper sealing cover is arranged at the end of a push rod of the upper air cylinder. Due to the fact that the upper sealing cover is arranged at the end of the upper air cylinder, the side sealing cover is arranged at the end of the side air cylinder, and the bottom sealing cover is arranged on the top face of the lower sealing support, under the action of all the air cylinders, all ports of the axle housing can be quickly plugged, use is convenient, operation is easy, tool efficiency is improved, and construction difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to a bridge housing gas testing fixture, and more particularly to a low-floor bridge housing composite gas testing fixture, belonging to the field of component testing technology. Background Technology

[0002] When performing air pressure tests on automotive axle housings, it is necessary to seal all ports of the axle housing. The traditional installation method is to use bolts and manually seal the upper, side, and lower ports of the axle housing. After all the sealing is completed, air pressure is injected and a leak test is performed. This method is time-consuming and labor-intensive, and the sealing efficiency is low. The sealing installation or removal of the axle housing ports takes nearly 30 minutes. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a low-floor bridge shell composite gas detection tool that can quickly seal each port of the bridge shell, improve tooling efficiency, and is convenient and easy to use.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] A low-floor bridge shell composite gas testing fixture includes legs, a support plate, and side support plates. The support plate has legs at its bottom and a displacement rail at its top. A lower sealing support is slidably connected above the displacement rail, and a bottom sealing cover is provided on the top of the lower sealing support. A side cylinder is located on the right side of the lower sealing support, and a side sealing cover is provided at the end of the side cylinder. The side support plate is vertically arranged behind the lower sealing support, and a top plate is located on top of the side support plate. An upper cylinder is located above the top plate, and the push rod of the upper cylinder passes through the top plate, with an upper sealing cover provided at the end of the push rod.

[0006] The position and dimensions of the upper sealing cover are matched with the dimensions of the upper port of the bridge housing.

[0007] The bottom sealing cover is provided with positioning pins around its perimeter. The positions of the positioning pins correspond to the positions of the mounting holes at the lower end of the axle housing. The size of the bottom sealing cover matches the size of the bottom sealing opening of the axle housing.

[0008] The dimensions of the side sealing cap are matched with the dimensions of the side port of the bridge housing.

[0009] The inner walls of the upper sealing cover, bottom sealing cover, and side sealing cover are each provided with a sealing layer.

[0010] There are two displacement tracks, and a pull-back cylinder is installed on the lower sealing support between the two displacement tracks. The pull-back cylinder is fixedly connected to the bottom of the lower sealing support through a connecting block. A displacement block is installed at the bottom of the lower sealing support at the position corresponding to the displacement track, and the displacement block is slidably connected to the displacement track.

[0011] The positive and beneficial effects of this utility model are:

[0012] 1. This utility model provides an upper sealing cover at the end of the upper cylinder, a side sealing cover at the end of the side cylinder, and a bottom sealing cover on the top surface of the lower sealing support. Under the action of the cylinder, it can quickly seal all ports of the axle housing, which is beneficial for testing the airtightness of the axle housing.

[0013] 2. This utility model can quickly position the axle housing by setting positioning pins around the bottom sealing cover, and can move the axle housing to the set position under the action of the rear pull cylinder. It is convenient to use, simple to operate, improves tooling efficiency, and reduces construction difficulty. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 The front view;

[0016] Figure 3 for Figure 1 The left view;

[0017] Wherein: 1-outrigger, 2-support plate, 3-displacement rail, 301-displacement block, 4-rear pull cylinder, 5-lower sealing support, 6-side cylinder, 7-side cover, 8-side support plate, 9-top plate, 10-upper cylinder, 11-upper sealing cover, 12-bottom sealing cover, A-product. Detailed Implementation

[0018] The present invention will be further explained and described below with reference to the accompanying drawings:

[0019] See the example. Figure 1-Figure 3A low-floor bridge shell composite gas inspection fixture includes a support leg 1, a support plate 2, and a side support plate 8. The support leg 1 is provided at the bottom of the support plate 2, and a displacement rail 3 is provided at the top of the support plate 2. A lower sealing support 5 is slidably connected above the displacement rail 3. A bottom sealing cover 12 is provided at the top of the lower sealing support 5. A side cylinder 6 is provided on the right side of the lower sealing support 5, and a side sealing cover 7 is provided at the end of the side cylinder 6. The side support plate 8 is vertically provided behind the lower sealing support 5, and a top plate 9 is provided at the top of the side support plate 8. An upper cylinder 10 is provided above the top plate 9. The push rod of the upper cylinder 10 passes through the top plate 9, and an upper sealing cover 11 is provided at the end of the push rod of the upper cylinder 10.

[0020] The position and dimensions of the upper sealing cover 11 match the dimensions of the upper port of the bridge housing.

[0021] Locating pins are provided around the bottom sealing cover 12. The position of the locating pins corresponds to the position of the mounting hole at the lower end of the axle housing. The size of the bottom sealing cover 12 matches the size of the bottom sealing opening of the axle housing.

[0022] The dimensions of the side sealing cover 7 are matched with the dimensions of the side port of the bridge housing.

[0023] A sealing layer is provided on the inner wall of the upper sealing cover 11, the bottom sealing cover 12, and the side sealing cover.

[0024] There are two displacement tracks 3, and a pull-back cylinder 4 is provided on the lower sealing support 5 between the two displacement tracks 3. The pull-back cylinder 4 is fixedly connected to the bottom of the lower sealing support 5 through a connecting block. A displacement block 301 is provided at the bottom of the lower sealing support 5 at the position corresponding to the displacement track 3, and the displacement block 301 is slidably connected to the displacement track 3.

[0025] In the above description, under the action of the rear pull cylinder, the lower sealing support is moved to the set position. At this time, the position of the bottom sealing cover corresponds to the position of the lower port of the axle housing, the position of the upper sealing cover corresponds to the position of the upper port of the axle housing, and the position of the side sealing cover corresponds to the position of the side port of the axle housing.

[0026] In the above description, the pull-back cylinder is fixed to the support plate, and the push rod of the pull-back cylinder is fixedly connected to the bottom of the lower sealing support. Under the action of the pull-back cylinder, the axle housing can be moved to the set position.

[0027] As described above, by setting positioning pins around the bottom sealing cover, during installation, simply align the mounting holes at the bottom of the housing with the positioning pins to quickly position the bridge housing. This method is convenient and easy to use.

[0028] This utility model provides an upper sealing cover at the end of the upper cylinder, a side sealing cover at the end of the side cylinder, and a bottom sealing cover on the top surface of the lower sealing support. Under the action of each cylinder, it can quickly seal each port of the axle housing, which is beneficial for testing the airtightness of the axle housing. It is convenient to use, simple to operate, improves tooling efficiency, and reduces construction difficulty.

Claims

1. A low-floor bridge shell composite gas inspection fixture, comprising legs (1), a support plate (2), and side support plates (8), characterized in that: The support plate (2) has a support leg (1) at the bottom and a displacement rail (3) at the top. A lower sealing support (5) is slidably connected above the displacement rail (3). A bottom sealing cover (12) is provided at the top of the lower sealing support (5). A side cylinder (6) is provided on the right side of the lower sealing support (5). A side sealing cover (7) is provided at the end of the side cylinder (6). A side support plate (8) is vertically provided behind the lower sealing support (5). A top plate (9) is provided at the top of the side support plate (8). An upper cylinder (10) is provided above the top plate (9). The push rod of the upper cylinder (10) passes through the top plate (9), and an upper sealing cover (11) is provided at the end of the push rod of the upper cylinder (10).

2. The low-floor bridge shell composite gas detection fixture according to claim 1, characterized in that: The position and dimensions of the upper sealing cover (11) match the dimensions of the upper port of the bridge housing.

3. The low-floor bridge shell composite gas detection fixture according to claim 1, characterized in that: The bottom sealing cover (12) is provided with positioning pins around its perimeter. The position of the positioning pins corresponds to the position of the mounting hole at the lower end of the axle housing. The size of the bottom sealing cover (12) matches the size of the bottom sealing opening of the axle housing.

4. The low-floor bridge shell composite gas detection fixture according to claim 1, characterized in that: The dimensions of the side sealing cover (7) are matched with the dimensions of the side port of the bridge housing.

5. The low-floor bridge shell composite gas detection fixture according to claim 1, characterized in that: The inner walls of the upper sealing cover (11), the bottom sealing cover (12), and the side sealing cover are respectively provided with sealing layers.

6. The low-floor bridge shell composite gas detection fixture according to claim 1, characterized in that: There are two displacement tracks (3), and a pull-back cylinder (4) is provided on the lower sealing support (5) between the two displacement tracks (3). The pull-back cylinder (4) is fixedly connected to the bottom of the lower sealing support (5) through a connecting block. A displacement block (301) is provided at the bottom of the lower sealing support (5) corresponding to the position of the displacement track (3), and the displacement block (301) is slidably connected to the displacement track (3).

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