Differential shell machining tool with air tightness inspection function

Abstract

The utility model discloses a differential shell processing tool with air tightness inspection, which comprises a top cover arranged on the outer side of the upper end of a working table through a hinge shaft, a loading plate arranged at the lower end in the working table, a driving motor mounted on the outer side of the lower end of the working table, and a transmission rod connected to the output end of the driving motor; and the first connecting base is installed on the left side of the interior of the workbench, and first sealing rings are arranged in the middles of the outer sides of the first connecting base and the second connecting base correspondingly. The utility model belongs to the technical field of differential shell processing, and aims to solve the problems that the inner cavity of a differential shell cannot be ensured to be a closed cavity and the air tightness inspection effect of the differential shell is poorer in the prior art. The device has the technical effects that the inner cavity of the differential shell can be ensured to be a closed cavity, and the air tightness of the differential shell and differential shells with different sizes can be conveniently checked.

Description

Technical Field

[0001] The utility model relates to the technical field of differential housing processing, in particular to a differential housing processing tool with air tightness inspection function. Background Art

[0002] The differential is installed to adjust the speed difference between the left and right wheels, and the differential housing is the protective component outside the differential. The differential housing cannot have any cracks. Therefore, the differential housing needs to be checked for air tightness during processing to determine whether there are casting defects in the differential housing.

[0003] Traditional processing tools cannot ensure that the inner cavity of the differential housing is a closed cavity during processing, and the effect of the airtightness inspection of the differential housing is poor, resulting in differential housings with casting defects still being put into use. At the same time, it is not convenient to inspect differential housings of different sizes. Utility Model Content

[0004] To this end, the utility model provides a differential case processing tool with air tightness inspection function to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] According to the first aspect of the utility model, a differential case processing tool with air tightness inspection includes:

[0007] A top cover is arranged on the outer side of the upper end of the workbench through a hinge shaft, and a load plate is arranged at the inner lower end of the workbench, a driving motor is installed on the outer side of the lower end of the workbench, and a transmission rod is connected to the output end of the driving motor, and a mounting rod located in the middle of the lower end of the load plate is arranged at the outer end of the transmission rod;

[0008] A first connecting seat is installed on the inner left side of the workbench, and a second connecting seat is arranged on the inner right side of the workbench, a first sealing ring is arranged in the middle of the outer side of the first connecting seat and the second connecting seat, and a second sealing ring is pasted on the outer ends of the first connecting seat and the second connecting seat.

[0009] Furthermore, a supporting stand is installed on the outer side of the lower end of the workbench, and an air guide pipe is provided through the left wall of the workbench.

[0010] Furthermore, the air guide tube is connected to the first connecting seat, and a pressure sensor is arranged inside the first connecting seat.

[0011] Furthermore, a fixing screw for installation is provided through the outer interior of the first connecting seat, and the first connecting seat and the second connecting seat are symmetrically arranged inside the workbench.

[0012] Furthermore, an electric hydraulic rod located inside the workbench is installed on the outer side of the right end of the second connecting seat.

[0013] Furthermore, the transmission rod and the mounting rod are connected by threads.

[0014] Furthermore, a sealing assembly is provided at the connection between the load plate and the workbench, and an extension frame is fixedly installed on the outer side of the lower end of the load plate.

[0015] The utility model has the following advantages:

[0016] 1. Through the first sealing ring and the second sealing ring, the first sealing ring and the second sealing ring can respectively compensate and seal the gap at the connection between the first connecting seat and the second connecting seat and the differential housing, ensuring that the inner cavity of the differential housing is a closed cavity;

[0017] 2. The air duct is connected to the first connection seat through the air duct, and the air duct is connected to the external air intake pipe, so that the gas can be injected into the first connection seat and the differential housing through the air duct, and the differential housing is checked for air tightness through the pressure sensor built into the first connection seat;

[0018] 3. Through the load plate, the driving motor drives the transmission rod to rotate. At this time, the transmission rod and the mounting rod are threadedly connected, thereby driving the mounting rod and the load plate to move in the workbench, so that the load plate can be conveniently placed on differential housings of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front cross-sectional view of a differential case machining tool with air tightness inspection provided in some embodiments of the utility model.

[0020] Figure 2 A differential case processing tool with air tightness inspection provided in some embodiments of the utility model Figure 1 Enlarged view of point A in the middle.

[0021] In the figure: 1. workbench, 2. supporting tripod, 3. top cover, 4. handle, 5. load plate, 6. drive motor, 7. transmission rod, 8. mounting rod, 9. first connecting seat, 10. second connecting seat, 11. fixing screw, 12. first sealing ring, 13. second sealing ring, 14. air guide tube, 15. electric hydraulic rod, 16. extension frame. DETAILED DESCRIPTION

[0022] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0023] like Figure 1 to Figure 2 As shown, a differential case processing tool with air tightness inspection in the embodiment of the first aspect of the utility model comprises: a top cover 3 is arranged on the outer side of the upper end of a workbench 1 through a hinge shaft, and a handle 4 is fixedly installed on the right end of the top cover 3, and a support stand 2 is also installed on the outer side of the lower end of the workbench 1, so that the whole can be stably placed in a specified position through the support stand 2, and then the top cover 3 is opened through the handle 4, and the differential case is placed in the workbench 1 and located on the outer side of the upper end of the load plate 5, so that the load plate 5 supports the differential case, so that the two ends of the differential case can be aligned with the first connecting seat 9 and the second connecting seat 10 respectively;

[0024] The first connecting seat 9 is installed on the left side of the interior of the workbench 1, and the second connecting seat 10 is provided on the right side of the interior of the workbench 1. A fixing screw 11 for installation is provided through the outer side of the first connecting seat 9, and the first connecting seat 9 and the second connecting seat 10 are symmetrically arranged inside the workbench 1. An electric hydraulic rod 15 located in the workbench 1 is installed on the outer side of the right end of the second connecting seat 10. The first connecting seat 9 and the second connecting seat 10 are fixedly installed by the fixing screws 11 respectively. The electric hydraulic rod 15 is started to extend the electric hydraulic rod 15 and drive the second connecting seat 10 to move to the left. At this time, the second connecting seat 10 can contact the right end of the differential housing under the action of the electric hydraulic rod 15, and the second connecting seat 10 can push the differential housing so that the left end of the differential housing contacts and is pressed against the first connecting seat 9;

[0025] A first sealing ring 12 is provided at the middle of the outer side of the first connecting seat 9 and the second connecting seat 10, and a second sealing ring 13 is pasted on the outer ends of the first connecting seat 9 and the second connecting seat 10. An air duct 14 is provided through the left wall of the workbench 1, and a pressure sensor is provided inside the first connecting seat 9. The first sealing ring 12 and the second sealing ring 13 can respectively compensate and seal the gap at the connection between the first connecting seat 9 and the second connecting seat 10 and the differential housing to ensure that the inner cavity of the differential housing is a closed cavity. Then the air duct 14 is connected to the external air intake pipe to facilitate the injection of gas into the first connecting seat 9 and the differential housing through the air duct 14. Whether there is leakage is detected by the pressure sensor built into the first connecting seat 9. If the leakage is within the allowable range, the product is judged to be qualified. When the leakage is outside the set range, it is judged that the product has a casting defect;

[0026] A load plate 5 is provided at the lower end of the interior of the workbench 1, a drive motor 6 is installed on the outer side of the lower end of the workbench 1, and the output end of the drive motor 6 is connected to a transmission rod 7, and the outer end of the transmission rod 7 is provided with a mounting rod 8 located in the middle of the lower end of the load plate 5, a sealing assembly is provided at the connection between the load plate 5 and the workbench 1, and an extension frame 16 is fixedly installed on the outer side of the lower end of the load plate 5, and the height of the load plate 5 in the workbench 1 can be adjusted by the transmission rod 7 and the mounting rod 8. When adjusting, start the drive motor 6 so that the drive motor 6 drives the transmission rod 7 to rotate. At this time, the transmission rod 7 and the mounting rod 8 are threadedly connected, thereby driving the mounting rod 8 and the load plate 5 to move in the workbench 1, so that the load plate 5 can be placed on differential housings of different sizes, so that the center position of the differential housing can always be aligned with the first connecting seat 9 and the second connecting seat 10, which is convenient for subsequent detection work.

Claims

1. A differential case processing tool with air tightness inspection, characterized in that: include: A top cover (3) is arranged on the outer side of the upper end of the workbench (1) via a hinge shaft, and a load plate (5) is arranged at the inner lower end of the workbench (1), a drive motor (6) is installed on the outer side of the lower end of the workbench (1), and the output end of the drive motor (6) is connected to a transmission rod (7), and a mounting rod (8) located in the middle of the lower end of the load plate (5) is arranged at the outer end of the transmission rod (7); A first connecting seat (9) is installed on the left side of the interior of the workbench (1), and a second connecting seat (10) is arranged on the right side of the interior of the workbench (1), a first sealing ring (12) is arranged at the middle part of the outer side of the first connecting seat (9) and the second connecting seat (10), and a second sealing ring (13) is glued to the outer ends of the first connecting seat (9) and the second connecting seat (10).

2. A differential case processing tool with air tightness inspection according to claim 1, characterized in that: A supporting footrest (2) is also installed on the outer side of the lower end of the workbench (1), and an air guide pipe (14) is provided through the left wall of the workbench (1).

3. A differential case processing tool with air tightness inspection according to claim 2, characterized in that: The air guide tube (14) is connected to the first connection seat (9), and a pressure sensor is arranged inside the first connection seat (9).

4. A differential case processing tool with air tightness inspection according to claim 3, characterized in that: A fixing screw (11) for installation is provided through the outer interior of the first connecting seat (9), and the first connecting seat (9) and the second connecting seat (10) are symmetrically arranged inside the workbench (1).

5. A differential case processing tool with air tightness inspection according to claim 4, characterized in that: An electric hydraulic rod (15) located inside the workbench (1) is mounted on the outer side of the right end of the second connecting seat (10).

6. The differential case processing tool with air tightness inspection according to claim 1, characterized in that: The transmission rod (7) and the mounting rod (8) are connected in a threaded manner.

7. The differential case processing tool with air tightness inspection according to claim 1, characterized in that: A sealing assembly is provided at the connection between the load-bearing plate (5) and the workbench (1), and an extension frame (16) is fixedly mounted on the outer side of the lower end of the load-bearing plate (5).

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