Air tightness detection device for turbocharger shell

Abstract

The utility model discloses an air tightness detection device for a turbocharger shell. The air tightness detection device comprises a workbench used for installation, a sliding plate stably installed in the middle of the upper end of the workbench, and a protective shell installed on the outer side of the upper end of the workbench. A clamping mechanism is arranged on the sliding plate, the clamping mechanism comprises a two-way threaded lead screw, a motor and a clamping arm, the two-way threaded lead screw is installed in the sliding plate, the motor is arranged at the rear end of the two-way threaded lead screw, and the clamping arm is connected to the outer side of the two-way threaded lead screw; and a clamping mechanism is arranged in the clamping groove, and the clamping mechanism comprises a hook rod, a sliding rod, a second spring and a sleeve. According to the air tightness detection device for the turbocharger shell, the turbocharger shell can be conveniently clamped and limited before detection, the detected turbocharger shell can be conveniently and rapidly taken out or placed, the supporting device can be conveniently limited, and the turbocharger shell is prevented from returning to the original position.

Description

Technical Field

[0001] This utility model relates to the field of turbocharger housing technology, specifically to a turbocharger housing airtightness testing device. Background Technology

[0002] A turbocharger is essentially an air compressor that increases the intake air volume by compressing air. It primarily utilizes the inertia of the exhaust gases from the engine to drive a turbine within the turbine housing. The turbine, in turn, drives a coaxial impeller, which compresses the air supplied through the air filter duct, thus increasing its pressure before it enters the system. However, during the production of turbocharger housings, air tightness testing is typically required to verify their quality. Existing air tightness testing devices have a relatively simple structure, making it difficult to quickly disassemble the turbocharger housing, thus reducing testing efficiency. Furthermore, the lack of a limit function during testing introduces errors. Therefore, an air tightness testing device for turbocharger housings has been designed to address these issues.

[0003] A turbocharger housing airtightness testing device, disclosed in announcement number CN220649939U, includes a transparent outer shell. A lower plug and an upper plug, facing each other, are installed within the inner cavity of the outer shell. The axes of the lower and upper plugs are collinear. Two side plugs are located on one side of each plug. Each of the lower, upper, and side plugs has a groove, and a gasket for sealing is installed inside each groove. The lower plug is fixedly installed at the top of a hollow shaft, and the inner cavity of the hollow shaft communicates with the groove of the lower plug. The upper plug is installed at the head of a vertical hydraulic cylinder, and a gas pressure sensor is installed in the groove of the upper plug. This airtightness testing device can automatically position and securely tighten the turbocharger housing during airtightness testing, and easily determine the location of any leaks in the housing.

[0004] Based on existing solutions and actual production and processing applications, current turbocharger housing airtightness testing devices still have some problems: First, existing turbocharger housing testing devices lack clamping structures, making them prone to displacement during testing. Second, the internal components of the testing device are not convenient for quick disassembly of the turbocharger housing, reducing work efficiency. Finally, to prevent the turbocharger housing from easily shifting during installation, its support device needs to be limited to avoid installation errors. Therefore, this utility model provides an airtightness testing device for turbocharger housings to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide an airtightness testing device for turbocharger housings, in order to solve the problems mentioned in the background art. The existing turbocharger housing testing devices do not have a clamping structure, which makes them prone to displacement during testing. Secondly, the internal parts of the testing device are not convenient for quick disassembly of the turbocharger housing, which reduces work efficiency. Finally, in order to prevent the turbocharger housing from easily shifting during installation, the support device needs to be limited to avoid installation errors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a turbocharger housing airtightness testing device, comprising: a workbench for installation, a sliding plate stably installed in the middle of the upper part of the workbench, and a protective shell installed on the outer side of the upper part of the workbench;

[0007] It also includes: a clamping mechanism is provided on the sliding plate, wherein the clamping mechanism includes a bidirectional threaded screw, a motor and a clamping arm, the bidirectional threaded screw is installed inside the sliding plate, the motor is provided at the rear end of the bidirectional threaded screw, and the clamping arm is connected to the outer side of the bidirectional threaded screw;

[0008] The slot has an engagement mechanism inside, which includes a hook rod, a sliding rod, a second spring, and a sleeve. The lower end of the hook rod is provided with a sliding rod, and the lower outer side of the sliding rod is provided with a second spring and a sleeve, with the sleeve located outside the second spring.

[0009] Preferably, the outer side of the bidirectional threaded screw is connected to the clamping arm by a thread, and the clamping arm is symmetrically arranged about the center line of the sliding plate.

[0010] Preferably, the left and right ends of the sliding plate are connected to fixed rods, and the outer side of the fixed rods is in contact with the first spring, and the sliding plate forms a sliding structure on the outer side of the fixed rods.

[0011] Preferably, the front end of the sliding plate is provided with a slot, and the front end of the slot is provided with a connecting rod, and the front end of the connecting rod is connected to a support column and a connector, and the connector is located at the front end of the support column.

[0012] Preferably, the interior of the slot is connected to the hook rod by an engaging manner, and the hook rod is symmetrically arranged about the center line of the slot.

[0013] Preferably, the sliding rod forms a sliding structure inside the sleeve, and the outer side of the sliding rod is set in contact with the second spring position.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the airtightness testing device for turbocharger housing facilitates clamping and limiting the turbocharger housing before testing, facilitates quick removal or placement of the turbocharger housing to be tested, and facilitates limiting the support device to prevent it from returning to its original position.

[0015] 1. Equipped with a sliding plate, a double-threaded screw, and a clamping arm, when it is necessary to clamp the turbocharger housing to be inspected, the motor is started to drive the double-threaded screw to rotate inside the sliding plate. The outer side of the double-threaded screw is connected to the motor by a thread. Therefore, the double-threaded screw drives the motor to move towards the middle of the sliding plate, so that the motor clamps the turbocharger housing placed on the upper part of the sliding plate, thus fixing its position and facilitating clamping and limiting before inspecting the turbocharger housing;

[0016] 2. Equipped with a fixed rod, a first spring, and a connecting rod, when it is necessary to accurately place or disassemble the turbocharger housing, first rotate the connector installed at the front end of the connecting rod. The inside of the connector moves forward along the threaded path at the front end of the support column, causing the connector to continuously disengage from the support column. At this time, hold the connecting rod and drive the sliding plate to slide forward along the path of the fixed rod, squeezing the first spring. Finally, the sliding plate drives the turbocharger housing to be pulled out from inside the detection device, and the operation can be carried out, which facilitates the quick removal or placement of the turbocharger housing to be tested.

[0017] 3. Equipped with a slot, hook rod, and sleeve, after the sliding plate is removed from the protective shell, in order to help stabilize its position and prevent it from returning to its original position due to the elastic force of the first spring, the hook rod is lifted upwards, causing the hook rod to slide inside the sleeve. At the same time, when the sliding rod is displaced, it compresses the second spring to retract. Finally, the upper end of the hook rod is engaged inside the slot, which stabilizes the sliding plate and facilitates the limiting of the support device to prevent it from returning to its original position. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a side view sectional structural diagram of the present invention;

[0020] Figure 3 This is a top view sectional structural diagram of the present invention;

[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Workbench; 2. Sliding plate; 3. Two-way threaded screw; 4. Motor; 5. Clamping arm; 6. Fixing rod; 7. First spring; 8. Slot; 9. Connecting rod; 10. Support column; 11. Connector; 12. Hook rod; 13. Sliding rod; 14. Second spring; 15. Sleeve; 16. Protective shell; 17. Telescopic rod; 18. Mounting plate; 19. Guide rod; 20. Sealing gasket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 This utility model provides a technical solution: an airtightness testing device for a turbocharger housing, comprising a worktable 1, a sliding plate 2, a bidirectional threaded screw 3, a motor 4, a clamping arm 5, a fixing rod 6, a first spring 7, a slot 8, a connecting rod 9, a support column 10, a connector 11, a hook rod 12, a sliding rod 13, a second spring 14, a sleeve 15, a protective shell 16, a telescopic rod 17, a mounting plate 18, a guide rod 19, and a sealing gasket 20.

[0026] When mounting the turbocharger housing onto the testing device, for example, attaching... Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5As shown, the outer side of the bidirectional threaded screw 3 is connected to the clamping arm 5 by a thread. The clamping arm 5 is symmetrically arranged about the center line of the sliding plate 2. The left and right ends of the sliding plate 2 are connected to the fixing rods 6. The outer side of the fixing rods 6 is in contact with the first spring 7. The sliding plate 2 forms a sliding structure on the outer side of the fixing rods 6. The front end of the sliding plate 2 is provided with a groove 8. The front end of the groove 8 is provided with a connecting rod 9. The front end of the connecting rod 9 is connected to the support column 10 and the connector 11. The connector 11 is located at the front end of the support column 10. The inside of the groove 8 is engaged with the hook rod 12. Connected, the hook rod 12 is symmetrically arranged about the center line of the slot 8, and the sliding rod 13 forms a sliding structure inside the sleeve 15. The outer side of the sliding rod 13 is set in contact with the second spring 14. First, with the support column 10 and the connector 11 not connected, hold the connector 11 and drive the connecting rod 9 to slide the sliding plate 2 forward along the path of the fixed rod 6, squeezing the first spring 7, so that it is gradually pulled out from the inside of the protective shell 16. In order to stably install the turbocharger housing on the sliding plate 2, the sliding plate 2 needs to be limited. At this time, this At the same time, hook rod 12 is lifted upwards, causing hook rod 12 to drive sliding rod 13 to slide inside sleeve 15. Simultaneously, as sliding rod 13 moves, it compresses second spring 14 to retract, ultimately locking the upper end of hook rod 12 into slot 8, thus stabilizing sliding plate 2. Then, turbocharger housing is placed on sliding plate 2. To prevent displacement during compression detection, motor 4 is started, driving bidirectional threaded screw 3 to rotate inside sliding plate 2. The outer side of bidirectional threaded screw 3 is threadedly connected to motor 4, thus the bidirectional threaded screw 3 drives… Motor 4 moves towards the middle of sliding plate 2, so that motor 4 clamps the outside of the turbocharger housing placed on the upper end of sliding plate 2, and finally fixes it in position. Then, hook rod 12 is lifted upward and pulled out from inside the slot 8. The first spring 7 drives sliding plate 2 to move backward quickly along the path of fixing rod 6 through elastic force. Finally, sliding plate 2 drives turbocharger housing to move to the lower end of sealing gasket 20 for testing. Then, connector 11 is connected to support column 10 to fix sliding plate 2 in position. This is the way turbocharger housing is installed on testing device.

[0027] When using a turbocharger housing airtightness testing device, for example, with... Figure 1 and attached Figure 2A telescopic rod 17 is installed at the lower end of the inner part of the protective shell 16. An installation plate 18 is installed at the lower end of the telescopic rod 17. Guide rods 19 are connected to the left and right sides of the installation plate 18. A sealing gasket 20 is installed at the lower end of the installation plate 18. When the sliding plate 2 drives the turbocharger housing to move to the lower end of the sealing gasket 20, the controller on the protective shell 16 is operated to connect the detection device at the upper end of the start workbench 1 with the turbocharger housing. Then, the telescopic rod 17 is operated to drive the installation plate 18 to move downward along the path of the guide rod 19. Finally, the installation plate 18 drives the guide rod 19 to press against the turbocharger housing. Then, the air pressure is input into the turbocharger housing to detect the air leakage. The value is transmitted to the display screen at the upper end of the protective shell 16 through the sensor inside the sealing gasket 20, so that the detection status can be quickly observed. This is the usage method of the air tightness detection device for the turbocharger housing.

[0028] This is the entire working process of the airtightness testing device for the turbocharger housing. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for testing the airtightness of a turbocharger housing, comprising: The workbench (1) for installation, the sliding plate (2) stably installed in the middle of the upper end of the workbench (1), and the protective shell (16) installed on the outer side of the upper end of the workbench (1). Its characteristic is that it further includes: The sliding plate (2) is provided with a clamping mechanism, which includes a bidirectional threaded screw (3), a motor (4) and a clamping arm (5). The bidirectional threaded screw (3) is installed inside the sliding plate (2), and the motor (4) is provided at the rear end of the bidirectional threaded screw (3). The clamping arm (5) is connected to the outside of the bidirectional threaded screw (3). The slot (8) is provided with a locking mechanism inside, which includes a hook rod (12), a sliding rod (13), a second spring (14) and a sleeve (15). The lower end of the hook rod (12) is provided with a sliding rod (13), and the lower outer side of the sliding rod (13) is provided with a second spring (14) and a sleeve (15), and the sleeve (15) is located outside the second spring (14).

2. The airtightness testing device for a turbocharger housing according to claim 1, characterized in that: The outer side of the bidirectional threaded screw (3) is connected to the clamping arm (5) by a thread, and the clamping arm (5) is symmetrically arranged about the center line of the sliding plate (2).

3. The airtightness testing device for a turbocharger housing according to claim 1, characterized in that: The sliding plate (2) is connected to the left and right ends of the fixed rod (6), and the outer side of the fixed rod (6) is in contact with the first spring (7), and the sliding plate (2) forms a sliding structure on the outer side of the fixed rod (6).

4. The airtightness testing device for a turbocharger housing according to claim 1, characterized in that: The sliding plate (2) has a slot (8) at its front end, and a connecting rod (9) is provided at the front end of the slot (8). The front end of the connecting rod (9) is connected to a support column (10) and a connector (11), and the connector (11) is located at the front end of the support column (10).

5. The airtightness testing device for a turbocharger housing according to claim 1, characterized in that: The inside of the slot (8) is connected to the hook rod (12) by a snap-fit ​​method, and the hook rod (12) is symmetrically arranged about the center line of the slot (8).

6. The airtightness testing device for a turbocharger housing according to claim 1, characterized in that: The sliding rod (13) forms a sliding structure inside the sleeve (15), and the outer side of the sliding rod (13) is in contact with the second spring (14).

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