A turbine shell airtightness detection tooling fixture

Abstract

The utility model relates to a kind of for turbine shell air tightness detection tool fixture, comprising: bottom plate, first vertical plate, second vertical plate, first support block, first cylinder, first plug, second support block, first cross bar, angle plate, swing cylinder, angle block, cylinder plate, second cylinder, third plug, third support block, stop block, L block, sensor, positioning core etc.;First vertical plate and second vertical plate are fixed on bottom plate, first support block is fixed on first vertical plate and bottom plate, third support block is fixed on second vertical plate and bottom plate, first cylinder is fixed on first vertical plate, angle block is fixed on bottom plate, third plug is screwed into second cylinder, after L block is fixed after sensor is fixed, L block is fixed in second vertical plate, positioning core is fixed on second vertical plate.The utility model can quickly, accurately part clamping, can accurately control clamping force, turbine shell position is invariable in detection process, improve detection precision, reduce labor intensity.

Description

Technical Field

[0001] This utility model relates to an airtightness testing fixture, specifically a simple structure, improved testing accuracy, and reduced labor intensity fixture for turbine housing airtightness testing. Background Technology

[0002] Turbochargers are key components for improving engine power and efficiency. Their turbine housings, serving as the passageway for high-temperature exhaust gases, must operate under harsh conditions of high temperature and pressure for extended periods. Turbo housings are typically made of cast iron or heat-resistant alloys, and internal defects such as shrinkage cavities, sand holes, and cracks may occur during the casting process. Currently, airtightness testing of turbine housings usually employs water testing or air testing. Water testing involves immersing the part in water and observing for bubbles; this method is inefficient, difficult to automate, and requires subsequent drying, which may cause rusting.

[0003] However, existing airtightness testing fixtures typically have the following problems:

[0004] 1. Low sealing reliability: Especially for the two large interfaces, the inlet flange and the outlet volute, traditional sealing ring or pressure plate structures are difficult to adapt to their complex curved surfaces, and leakage is prone to occur during the inflation and pressurization process, resulting in misjudgment.

[0005] 2. Low clamping efficiency: Tooling is usually secured by multiple bolts, which makes the loading and unloading process cumbersome, time-consuming and labor-intensive, and difficult to meet the production line cycle requirements.

[0006] 3. Low integration: Functional units such as detection connectors, pressure sensors, and sealing mechanisms are separated, resulting in a bulky overall structure and inconvenient operation. Utility Model Content

[0007] To address the aforementioned problems, the main objective of this utility model is to provide a simple, high-precision, and low-labor-intensity tooling fixture for turbine housing airtightness testing.

[0008] This utility model solves the above-mentioned technical problems through the following technical solution: a tooling fixture for turbine housing airtightness testing, the tooling fixture for turbine housing airtightness testing includes: a base plate, a first vertical plate, a second vertical plate, a first support block, a first cylinder, a first plug, a second support block, a first crossbar, an angle plate, a swing cylinder, a second plug, a second crossbar, a small plug, an angle block, a cylinder plate, a second cylinder, a third plug, a third support block, a stop block, an L-shaped block, a sensor, and a positioning core.

[0009] The first and second upright plates are fixed to the base plate. The first support block is fixed to the first upright plate and the base plate. The third support block is fixed to the second upright plate and the base plate. The first cylinder is fixed to the first upright plate. The first plug is screwed into the first cylinder screw. The second support block is fixed to the angle plate and the first upright plate. The swing cylinder is fixed to the angle plate.

[0010] The second plug is fixed to the first crossbar, the first crossbar is fixed to the swing cylinder, the second cylinder is fixed to the cylinder plate, the cylinder plate is fixed to the angle block, the angle block is fixed to the base plate, the third plug is screwed into the second cylinder, and the small plug is fixed to the second crossbar.

[0011] The stop block is fixed on the second vertical plate. The L-shaped block fixes the sensor and then the L-shaped block is fixed in the second vertical plate. The positioning core is fixed on the second vertical plate.

[0012] In a specific embodiment of this utility model, the first upright plate and the second upright plate are fixed to the base plate with bolts.

[0013] In a specific embodiment of this utility model, the first support block is fixed to the first upright plate and the base plate with bolts.

[0014] In a specific embodiment of this utility model, the third support block is fixed to the second upright plate and the base plate using bolts.

[0015] In a specific embodiment of this utility model, the first cylinder is fixed to the first vertical plate with bolts, and the first plug is screwed into the first cylinder screw.

[0016] In a specific embodiment of this utility model, the first upright plate and the second upright plate are fixed to the base plate with bolts.

[0017] In a specific embodiment of this utility model, the second support block is fixed to the angle plate and the first upright plate with bolts, and the swing cylinder is fixed to the angle plate with bolts.

[0018] In a specific embodiment of this utility model, the second plug is fixed to the first crossbar with bolts, and the first crossbar 7 is fixed to the swing cylinder with bolts.

[0019] In a specific embodiment of this utility model, the second cylinder is fixed to the cylinder plate with bolts, the cylinder plate is fixed to the angle block with bolts, and the angle block is fixed to the base plate with bolts.

[0020] The positive and progressive effects of this utility model are as follows: The tooling clamp for turbine housing airtightness testing provided by this utility model has the following advantages: This utility model can realize fast and accurate part clamping, can control the clamping force more precisely, and the position of the turbine housing remains unchanged during the testing process. This utility model can improve the testing accuracy and reduce labor intensity. Attached Figure Description

[0021] Figure 1 This is one of the schematic diagrams of a turbine housing that needs to be tested for airtightness.

[0022] Figure 2 This is the second schematic diagram of a turbine housing that needs to be tested for airtightness.

[0023] Figure 3 This utility model provides a three-dimensional method for testing airtightness. Figure 1 .

[0024] Figure 4 This utility model provides a three-dimensional method for testing airtightness. Figure 2 .

[0025] The following are the names corresponding to the reference numerals in this utility model:

[0026] In the diagram: base plate 1, first upright plate 2, second upright plate 11, first support block 3, first cylinder 4, first plug 5, second support block 6, first crossbar 7, angle plate 8, swing cylinder 9, second plug 10, second crossbar 12, small plug 13, angle block 14, cylinder plate 15, second cylinder 16, third plug 17, third support block 18, stop block 19, L-shaped block 20, sensor 21, positioning core 22. Detailed Implementation

[0027] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.

[0028] Figure 1 This is one of the schematic diagrams of a turbine housing that requires airtightness testing. Figure 2 This is the second schematic diagram of a turbine housing that requires airtightness testing, as shown below. Figure 1 and 2 As shown: In this utility model, there are four areas where the airtightness of the turbine housing needs to be tested. Figure 1 and 2 The four locations are A, B, C, and D.

[0029] Figure 3 This utility model provides a three-dimensional method for testing airtightness. Figure 1 , Figure 4 This utility model provides a three-dimensional method for testing airtightness. Figure 2 ,like Figure 3 and 4As shown: This utility model proposes a tooling fixture for turbine housing airtightness testing. The tooling fixture for turbine housing airtightness testing includes: a base plate 1, a first vertical plate 2, a second vertical plate 11, a first support block 3, a first cylinder 4, a first plug 5, a second support block 6, a first crossbar 7, an angle plate 8, a swing cylinder 9, a second plug 10, a second crossbar 12, a small plug 13, an angle block 14, a cylinder plate 15, a second cylinder 16, a third plug 17, a third support block 18, a stop block 19, an L-shaped block 20, a sensor 21, and a positioning core 22.

[0030] The first upright plate 2 and the second upright plate 11 are fixed to the base plate 1, and in the specific implementation process, they are generally fixed with bolts. The first support block 3 is fixed to the first upright plate 2 and the base plate 1 with bolts, and its function is to strengthen the vertical strength of the first upright plate 2. The third support block 18 is fixed to the second upright plate 11 and the base plate 1 with bolts, and its function is to strengthen the vertical strength of the second upright plate 11.

[0031] The first cylinder 4 is fixed to the first upright plate 2 with bolts, the first plug 5 is screwed into the screw of the first cylinder 4 and acts to seal the pipe opening of the part, the second support block 6 is fixed to the angle plate 8 and the first upright plate 2, and the swing cylinder 9 is fixed to the angle plate 8.

[0032] The second plug 10 is bolted to the first crossbar 7. The first crossbar 7 is bolted to the swing cylinder 9 and acts on the angled opening of the sealing part. The second cylinder 16 is bolted to the cylinder plate 15. The cylinder plate 15 is bolted to the angle block 14. The angle block 14 is bolted to the base plate 1. The third plug 17 is screwed into the second cylinder 16 and acts on the angled opening of the sealing part.

[0033] The stop block 19 is fixed to the second vertical plate 11 with bolts. The L-shaped block 20 is used to tighten and fix the sensor 21 with screws. The L-shaped block 20 is then fixed to the second vertical plate 11 with bolts. The sensor 21 is mainly used to detect whether the part is correctly placed in the tooling. The positioning core 22 is fixed to the second vertical plate 11 with bolts. The positioning core 22 is a key component for positioning the part and is also used to inflate the inner cavity of the part.

[0034] Tooling Information: Arrange the tooling, place the part into the positioning core 22, use the stop block 19 to block the part boss until the part cannot rotate, press the start button, the sensor 21 works to detect the part, the sensor 21 detects the part in the tooling fixture and starts the first cylinder 4 to push out first, after the part is clamped, the swing cylinder 9 and the second cylinder 16 work to seal the part port, the inflation pressure is 0.25MPa, the leakage is 40cc / min, the inflation time is 10 seconds, the balancing time is 30 seconds, and the test time is 5 seconds.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A fixture for testing the airtightness of turbine housings, characterized in that: The fixture for turbine housing airtightness testing includes: a base plate, a first vertical plate, a second vertical plate, a first support block, a first cylinder, a first plug, a second support block, a first crossbar, an angle plate, a swing cylinder, a second plug, a second crossbar, a small plug, an angle block, a cylinder plate, a second cylinder, a third plug, a third support block, a stop block, an L-shaped block, a sensor, and a positioning core. The first and second upright plates are fixed to the base plate. The first support block is fixed to both the first and base plates. The third support block is fixed to both the second and base plates. The first cylinder is fixed to the first upright plate. The first plug is screwed into the first cylinder screw. The second support block is fixed to the angle plate and the first upright plate. The swing cylinder is fixed to the angle plate. The second plug is fixed to the first crossbar, the first crossbar is fixed to the swing cylinder, the second cylinder is fixed to the cylinder plate, the cylinder plate is fixed to the angle block, the angle block is fixed to the base plate, the third plug is screwed into the second cylinder, and the small plug is fixed to the second crossbar. The stop block is fixed on the second vertical plate. The L-shaped block fixes the sensor and then the L-shaped block is fixed in the second vertical plate. The positioning core is fixed on the second vertical plate.

2. The fixture for turbine housing airtightness testing according to claim 1, characterized in that: The first and second uprights are fixed to the base plate with bolts.

3. The tooling fixture for turbine housing airtightness testing according to claim 1, characterized in that: The first support block is fixed to the first upright plate and the base plate with bolts.

4. The fixture for turbine housing airtightness testing according to claim 1, characterized in that: The third support block is fixed to the second upright plate and the base plate using bolts.

5. The fixture for turbine housing airtightness testing according to claim 1, characterized in that: The first cylinder is fixed to the first vertical plate with bolts, and the first plug is screwed into the first cylinder screw.

6. The tooling fixture for turbine housing airtightness testing according to claim 1, characterized in that: The first and second uprights are fixed to the base plate with bolts.

7. The tooling fixture for turbine housing airtightness testing according to claim 1, characterized in that: The second support block is fixed to the angle plate and the first vertical plate with bolts, and the swing cylinder is fixed to the angle plate with bolts.

8. The tooling fixture for turbine housing airtightness testing according to claim 1, characterized in that: The second plug is bolted to the first crossbar, and the first crossbar is bolted to the swing cylinder.

9. The tooling fixture for turbine housing airtightness testing according to claim 1, characterized in that: The second cylinder is bolted to the cylinder plate, the cylinder plate is bolted to the angle block, and the angle block is bolted to the base plate.

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