Gas detection plugging device for ABS sensor mounting hole of rear axle housing

Abstract

The invention relates to a gas detection plugging device for an ABS sensor mounting hole of a rear axle housing. The gas detection plugging device comprises a lower extrusion plate, a sealing ring, an upper extrusion plate, an extrusion bolt, a pull rod, a baffle, a stop pin and a guide pin, the lower extrusion plate and the upper extrusion plate get close to each other to extrude the sealing ring when the pull rod drives the extrusion bolt to rotate, so that the sealing ring is compressed in the vertical direction and expanded in the circumferential direction, and the inner hole of the workpiece and the plugging device are completely sealed. The rear axle housing ABS sensor mounting hole which cannot be plugged by equipment can meet the plugging requirement through simple operation, so that backflow of a production process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, and in particular to a gas detection plugging device for an ABS sensor mounting hole of a rear axle housing. Background Art

[0002] As a pillar industry, the automobile industry requires a large number of related parts to be produced in various places. The rear axle housing of the automobile drive rear axle is generally made of steel parts pressed and welded to form a certain cavity to assemble the corresponding moving actuators, such as half shafts, reducers, differentials, etc. In order to ensure the cooling of each moving part and prevent wear, lubricating oil needs to be injected into its inner cavity, so the sealing performance of its inner cavity is also very important.

[0003] To this end, each rear axle housing needs to be tested for air tightness during manufacturing to avoid leakage. In order to test its air tightness during the production process, it is necessary to seal some holes for testing, such as the holes for installing ABS sensors.

[0004] Previously, the ABS sensor mounting hole was generally sealed by the sealing part on the gas inspection equipment to cover the mounting hole plane as a whole; however, due to the differences in workpieces, some ABS sensor mounting holes have angles, and the equipment cannot adapt to them. The only option is to adjust the process and process the ABS mounting hole after gas inspection, which causes backflow in the processing and affects on-site production. Summary of the invention

[0005] The purpose of the present invention is to solve the defects of the prior art and provide an air detection plugging device for the mounting hole of the ABS sensor of the rear axle housing.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: An air detection plugging device for a rear axle housing ABS sensor mounting hole comprises a lower extrusion plate, a sealing ring, an upper extrusion plate, an extrusion bolt, a lever, a baffle plate, a baffle pin, and a guide pin; When the lever drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate approach each other and squeeze the sealing ring, so that the sealing ring is compressed in the vertical direction and expanded in the circumferential direction, so that the inner hole of the workpiece and the sealing device are completely sealed.

[0007] Furthermore, when the lever drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate can only move axially relative to each other and cannot be rotated and misaligned due to the action of the guide pin.

[0008] Furthermore, the gas inspection plugging device cannot rotate relative to the inner hole of the workpiece due to the blocking and pulling effect of the baffle plate and the baffle pin on the workpiece.

[0009] The beneficial effects of the present invention are as follows: when the lever drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate approach each other and squeeze the sealing ring, so that the sealing ring is compressed in the vertical direction and expanded in the circumferential direction, so that the inner hole of the workpiece and the blocking device are completely sealed; The present invention enables the ABS sensor mounting hole of the rear axle housing which cannot be blocked by the equipment to meet the blocking requirement through simple operation, thereby avoiding the backflow of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0011] Reference Figure 1 , a gas detection plugging device for a rear axle housing ABS sensor mounting hole, comprising a lower extrusion plate 1, a sealing ring 2, an upper extrusion plate 3, an extrusion bolt 4, a lever 5, a baffle 6, a baffle pin 7, and a guide pin 8; When the lever 5 drives the extrusion bolt 4 to rotate, the lower extrusion plate 1 and the upper extrusion plate 3 approach each other and squeeze the sealing ring 2, so that the sealing ring 2 is compressed in the vertical direction and expanded in the circumferential direction, so that the inner hole of the workpiece and the sealing device are completely sealed.

[0012] When the lever 5 drives the extrusion bolt 4 to rotate, the lower extrusion plate 1 and the upper extrusion plate 3 can only move axially relative to each other due to the action of the guide pin 8, and cannot be rotated and misaligned.

[0013] Due to the blocking and pulling effect of the baffle plate 6 and the baffle pin 7 on the workpiece, the workpiece cannot rotate relative to the inner hole of the workpiece, thereby preventing the sealing device from rotating and slipping when the extrusion bolt 4 is tightened.

[0014] The present invention can be specifically implemented according to the techniques in the technical solution, and the implementation methods are further illustrated by the following non-limiting examples.

[0015] Example 1: Taking the rear axle housing of the King Long United Longyao 8S Sea Lion electric drive axle as an example, the length of the axle housing is 1356MM.

[0016] In this embodiment, the diameter of the ABS sensor installation hole to be blocked is Ø25 (+0.10-+0) MM, and the height of the ABS sensor installation plane is 60MM.

[0017] The air detection plugging device of the ABS sensor mounting hole drives the extrusion bolt 4 to rotate through the lever 5, thereby forcing the lower extrusion plate 1 and the upper extrusion plate 3 to move axially closer under the action of the guide pin 8, and then squeeze the sealing ring 2, so that the sealing ring 2 is compressed in the vertical direction and expanded in the circumferential direction, so that the inner hole of the workpiece and the plugging device are completely sealed.

[0018] The dimensions of the gas detection plugging device of the ABS sensor mounting hole in this embodiment are: The lower extrusion plate 1 is cylindrical, with an outer diameter of Ø24.5±0.1 and a total height of 37MM; the upper end is designed with a countersunk hole with a diameter of Ø15.2 (+0.15 +0.1) MM and a depth of 17MM, and the lower end is an internal thread M8 with a depth of 14MM, which must not penetrate the bottom of the lower extrusion plate 1; a Ø4MM through hole is drilled through the middle inner hole Ø8 28MM away from the bottom to install the guide pin 8.

[0019] The upper extrusion plate 3 is a stepped cylinder with a total height of 28MM and a middle inner hole of Ø8 that runs through the entire length. The dimensions of the three sections of the outer circle from top to bottom are Ø42MM in diameter and 5MM in length; Ø24.5±0.1MM in diameter and 5MM in length; Ø15.2(+0, -0.05).MM in diameter and 18MM in length; a 5MM wide groove and 10MM deep groove are opened on the side wall of the 15.2 outer circle section to limit the movement of the guide pin 8 of the lower extrusion plate 1. Two M6 threaded through holes are processed on the Ø42MM outer circle end face to connect the fixed baffle 6.

[0020] The extrusion bolt 4 is a screw with a hole, the upper end of which has a diameter of Ø16MM and a length of 26MM. A Ø7MM through hole is drilled 7MM away from the end face to install the lever 5, and the lower end thereof has an M8 thread throughout.

[0021] The present invention enables the ABS sensor mounting hole of the rear axle housing which cannot be blocked by the equipment to meet the blocking requirement through simple operation, thereby avoiding the backflow of the production process.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air detection plugging device for the mounting hole of the ABS sensor of the rear axle housing, comprising a lower extrusion plate, a sealing ring, an upper extrusion plate, an extrusion bolt, a lever, a baffle, a baffle pin, and a guide pin; It is characterized in that The lower extrusion plate and the upper extrusion plate approach each other and squeeze the sealing ring when the lever drives the extrusion bolt to rotate, so that the sealing ring is compressed in the vertical direction and expanded in the circumferential direction, so that the inner hole of the workpiece and the blocking device are completely sealed.

2. The gas detection plugging device for the rear axle housing ABS sensor mounting hole according to claim 1, characterized in that: When the pull rod drives the extrusion bolt to rotate, the lower extrusion plate and the upper extrusion plate can only move axially relative to each other due to the action of the guide pin, and cannot be rotated and misaligned.

3. The gas detection plugging device for the rear axle housing ABS sensor mounting hole according to claim 1, characterized in that: The gas inspection plugging device cannot rotate relative to the inner hole of the workpiece due to the blocking and pulling effect of the baffle plate and the baffle pin on the workpiece.

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