A device for detecting the opening size precision of a supercharger sealing ring

Abstract

The application relates to the technical field of size detection, and more specifically discloses a supercharger sealing ring opening size precision detection device which comprises a lower base and an upper cover plate. The lower base comprises a base body, the upper surface of the base body is provided with a detection inclined groove, the detection inclined groove corresponds to the position of a detection groove, the lower base and the upper cover plate are fixed through locking assemblies, a lower mold groove is arranged at the middle position in the base body, a plurality of storage grooves are arranged at the outer side, and the lower mold groove is used for fixing a detection module in use. The double amplification method of'mechanical lever amplification + laser measurement' is adopted, which is favorable for greatly improving the detection resolution of the tiny gap. During detection, the cutting edge contact rod of the cutting tip part directly contacts the sealing ring opening, the tiny gap change is amplified through the lever ratio, the amplified displacement amount is captured in real time by the handle part through the laser generator, and the ultra-precise measurement of the opening gap is realized.

Description

Technical Field

[0001] This invention relates to the field of dimensional inspection technology, and more specifically to a device for detecting the dimensional accuracy of a turbocharger sealing ring opening. Background Technology

[0002] In the turbocharger's operating system, the sealing ring, as a core sealing component, directly determines the turbocharger's airtightness and operating efficiency through the precision of its opening size. The sealing ring must operate under harsh conditions of high temperature and high pressure for extended periods. If the opening gap is too large, it will lead to internal gas leakage, causing power loss and reduced fuel efficiency. If the gap is too small, it will cause jamming due to thermal expansion and contraction, leading to sealing ring wear or even breakage, which in severe cases may cause the entire turbocharger to malfunction. Therefore, accurate detection of the sealing ring opening size is a crucial step in ensuring the turbocharger's manufacturing quality and service life.

[0003] The current methods for detecting the opening size of turbocharger sealing rings in the industry face several technical bottlenecks, making it difficult to meet the needs of high-precision and high-efficiency production testing. The specific problems are as follows: Insufficient detection accuracy and susceptibility to external interference: Existing detection methods mostly rely on manual measurement with traditional measuring tools such as vernier calipers and micrometers. This method is greatly affected by human factors such as operator hand tremors, reading errors, and calibration deviations of measuring tools.

[0004] Poor versatility and limited adaptability: Different models and specifications of intensifiers require different sizes of sealing rings, such as inner diameter, thickness, and opening design. Existing testing devices are mostly fixed mold structures, and one set of devices can only be used to fit one type of sealing ring. When switching production batches, the entire set of testing molds and measuring tools must be replaced, which is not only time-consuming and labor-intensive, but also requires the additional stock of multiple sets of testing equipment.

[0005] The testing is limited in scope and lacks the ability to assess all operating conditions: Traditional testing can only measure the static opening size of the sealing ring under normal temperature and no pressure conditions, and cannot simulate its actual working environment inside the turbocharger, such as deformation under high temperature and high pressure, and elastic decay after long-term use. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device for detecting the accuracy of the opening size of a turbocharger sealing ring, so as to solve the problems existing in the background art.

[0007] This invention provides the following technical solution: a device for detecting the accuracy of the opening size of a turbocharger sealing ring, comprising a lower base and an upper cover plate. The lower base includes a base body, and a detection groove is formed on the upper surface of the base body. The detection groove corresponds to the detection slot. The lower base and the upper cover plate are fixed by a locking assembly. A lower mold groove is formed in the middle of the interior of the base body, and multiple storage slots are formed on the outer side. The lower mold groove is used to fix the detection module in use, and the storage slots are used to place the unused detection module. The detection module contains the workpiece to be tested. Multiple support frames are fixedly connected to the side of the lower mold groove inside the base body. Clamping assemblies are installed on the support frames. A placement slot is formed on the front of the top of the base body, and a photosensitive plate is placed on the placement slot. A detection assembly and a guide assembly are also placed on the front of the top of the base body. Furthermore, the detection assembly consists of a first main rod and a second auxiliary rod, each having a blade tip and a handle. The blade tips of both the first main rod and the second auxiliary rod are fixedly connected to blade contact rods, which are staggered. The handles of the first main rod and the second auxiliary rod are connected by detection springs of various lengths. An angle stabilizer is also installed on the handles of both the first main rod and the second auxiliary rod.

[0008] Furthermore, a lower laser generator and an upper laser generator are respectively installed at the ends of the handles of the first main rod and the second auxiliary rod. Both the lower laser generator and the upper laser generator are rotatable structures and always face each other. They are used to calculate the opening distance between the second auxiliary rod and the first main rod and to infer the size of the opening gap using the ratio.

[0009] Furthermore, the upper cover plate includes a cover plate body, an upper mold groove is provided in the middle of the interior of the cover plate body, the upper mold groove is used to fix the detection module, a connecting block is fixedly connected to the front of the cover plate body, the bottom of the connecting block is consistent with the overall plane of the cover plate body, and a pressure-sensitive block is installed on the inner side of the cover plate body, the pressure-sensitive block is located on top of the pressure sensor.

[0010] Furthermore, the clamping assembly includes a clamping rod and a clamping spring. The clamping rod is fixed on the support frame and installed on the clamping inner groove. The clamping rod and the clamping spring are sleeved together, and the end of the clamping rod located in the lower mold groove is inclined.

[0011] Furthermore, the detection module includes an upper mold sleeve and a lower mold sleeve, both of which have workpiece grooves and clamping grooves on their outer sides. The clamping assembly fixes the workpiece to be tested inside the upper mold sleeve through the clamping grooves. Detection grooves are provided on the front of the upper mold sleeve and the lower mold sleeve, and a knife-edge contact rod is installed at the detection groove.

[0012] Furthermore, the workpiece grooves in the upper and lower mold sleeves are high-precision cylinder liner grooves, with the internal dimensions being the same as the standard cylinder liner dimensions in actual use, and having multiple sizes, while the external dimensions are standard storage dimensions.

[0013] Furthermore, the locking assembly includes upper and lower clamping plates, which are two layers. Locking bolts and threaded sleeves are respectively installed on the upper and lower layers. The locking bolts and threaded sleeves are connected by threads. The locking assembly is installed on the front of the lower base and the upper cover plate.

[0014] Furthermore, a storage box is placed on the base plate at the bottom of the base body, which is used to store the detection components.

[0015] Furthermore, the guide assembly includes a horizontal slot and a sliding plate. A sliding groove is provided on the sliding plate, and a rotating slot is installed in the sliding groove. The rotating slot allows free rotation and up-and-down sliding. The first main rod and the second auxiliary rod are respectively installed on the horizontal slot and the rotating slot.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention employs a dual amplification method of "mechanical lever amplification + laser measurement," which significantly improves the detection resolution of minute gaps. During detection, the blade tip directly contacts the opening of the sealing ring, amplifying minute gap changes through lever ratio to the handle. The amplified displacement is then captured in real time by a laser generator, achieving ultra-precise measurement of the opening gap.

[0017] 2. This invention, through its static, dynamic, and long-term testing schemes, facilitates the direct measurement of the initial opening size of the sealing ring under normal temperature and pressure conditions using the testing components, enabling rapid screening of products with out-of-tolerance static dimensions. After the upper cover is closed, the standard pressure applied by the locking components causes the opening gap of the sealing ring to change under pressure compression, and the testing components detect its dimensional stability under actual assembly conditions. After the device is left to stand for a long time, the testing components record the dynamic rebound process of the sealing ring in real time, compare the difference between the final rebound value and the initial value, calculate the elastic decay, and predict the performance degradation trend of the sealing ring after long-term use, providing data support for the evaluation of the turbocharger's service life.

[0018] 3. The present invention, by having a replaceable detection module structure, is beneficial for high-precision cylinder liner grooves to be compatible with sealing rings of different specifications. It can be flexibly selected according to the elastic characteristics of the sealing ring, and the outer side is uniformly of standard storage size, which can be adapted to the lower mold groove of the lower base and the upper mold groove of the upper cover plate, further expanding the adaptability range of the device. One device can cover the sealing ring detection needs of multiple models of turbochargers, greatly reducing equipment maintenance costs and adapting to flexible production mode. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of structure A in the middle.

[0022] Figure 4 This is a schematic diagram of the assembly of the lower base and upper cover plate structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the detection module structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the detection component structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the locking assembly structure of the present invention.

[0026] Figure 8 This is a schematic diagram of the guide component structure of the present invention.

[0027] The attached diagram is labeled as follows: 1. Lower base; 101. Base body; 102. Detection groove; 103. Lower mold groove; 104. Storage groove; 105. Support frame; 106. Clamping inner groove; 107. Placement groove; 108. Base plate; 2. Upper cover plate; 201. Cover plate body; 202. Upper mold groove; 203. Connecting block; 204. Pressure sensing block; 3. Detection module; 301. Upper mold sleeve; 302. Lower mold sleeve; 303. Workpiece groove; 304. Clamping groove; 305. Detection groove; 4. Workpiece to be tested; 5. Clamping assembly; 501. Clamping rod; 502. Clamping spring; 6. Locking assembly; 601. Upper and lower clamping plates; 602. Locking bolt; 603. Threaded sleeve; 7. Detection assembly; 701. First main rod; 702. Second auxiliary rod; 703. Knife-edge contact rod; 704. Detection spring; 705. Upper laser generator; 706. Lower laser generator; 707. Angle stabilizer; 8. Guide assembly; 801. Horizontal slot; 802. Sliding plate; 803. Rotating slot; 9. Storage box; 10. Photosensitive plate; 11. Pressure sensor. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The turbocharger sealing ring opening size accuracy detection device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figure 1 and Figure 2 This invention provides a device for detecting the accuracy of the opening size of a turbocharger sealing ring, including a lower base 1 and an upper cover plate 2. The lower base 1 includes a base body 101, and a detection groove 102 is formed on the upper surface of the base body 101. The detection groove 102 corresponds to the detection slot 305. The lower base 1 and the upper cover plate 2 are fixed by a locking assembly 6. A lower mold groove 103 is formed in the middle of the base body 101, and multiple storage slots 104 are formed on the outer side. The lower mold groove 103 is used to fix the detection module 3 in use, and the storage slots 104 are used to place the unused detection module 3. The detection module 3 contains a workpiece 4 to be tested. Multiple support frames 105 are fixedly connected to the side of the lower mold groove 103 inside the base body 101. Clamping assemblies 5 are installed on the support frames 105. A placement slot 107 is formed on the front of the top of the base body 101. A photosensitive plate 10 is placed on the placement slot 107. A detection assembly 7 and a guide assembly 8 are also placed on the front of the top of the base body 101.

[0030] In this embodiment, it should be specifically noted that a storage box 9 is placed on the base plate 108 at the bottom of the base body 101. The storage box 9 is used to store the detection component 7.

[0031] The main difference between this embodiment and the prior art is that this embodiment combines mechanical lever amplification and laser measurement to achieve a dual amplification effect. It enables static gap measurement, dynamic rebound monitoring and long-term elastic decay assessment through a single device. At the same time, it adopts a replaceable mold to adapt to different specifications of sealing rings, which is highly versatile. Specifically, this is in the detection component 7.

[0032] The above structure is the main structure of this embodiment, which solves the problem that the measurement accuracy of the turbocharger sealing ring is poor and the measurement method is cumbersome. The storage box 9 is an existing structure. The specific structure and connection method of the storage box 9 will not be described in detail in this embodiment.

[0033] Reference Figure 2-3 The upper cover plate 2 includes a cover plate body 201. An upper mold groove 202 is provided in the middle of the cover plate body 201. The upper mold groove 202 is used to fix the detection module 3. A connecting block 203 is fixedly connected to the front of the cover plate body 201. The bottom of the connecting block 203 is consistent with the overall plane of the cover plate body 201. A pressure sensing block 204 is installed on the inner side of the cover plate body 201. The pressure sensing block 204 is located on top of the pressure sensor 11 and is used to provide judgment pressure to the pressure sensor 11 during merging.

[0034] In this embodiment, it should be specifically explained that: the clamping assembly 5 includes a clamping rod 501 and a clamping spring 502. The clamping rod 501 is fixed on the support frame 105 and installed on the clamping inner groove 106. The clamping rod 501 and the clamping spring 502 are sleeved together. The end of the clamping rod 501 located in the lower mold groove 103 is inclined. When the workpiece 4 to be tested is placed, it automatically moves to both sides to clamp the surface of the workpiece 4 to be tested. The clamping assembly 5 is in a retracted state when the detection module 3 is installed, which does not affect the installation of the detection module 3. After the detection module 3 is installed, the clamping assembly 5 applies a force to the workpiece 4 to be tested through the clamping groove 304.

[0035] Reference Figure 5 The detection module 3 includes an upper mold sleeve 301 and a lower mold sleeve 302. Both the upper mold sleeve 301 and the lower mold sleeve 302 are provided with workpiece grooves 303. Both the upper mold sleeve 301 and the lower mold sleeve 302 are provided with clamping grooves 304 on their outer sides. The clamping assembly 5 fixes the orientation of the workpiece 4 to be tested inside through the clamping grooves 304. The upper mold sleeve 301 and the lower mold sleeve 302 are provided with detection grooves 305 on their front sides. The knife-edge contact rod 703 is installed at the detection groove 305.

[0036] In this embodiment, it should be specifically noted that: the workpiece groove 303 in the upper mold sleeve 301 and the lower mold sleeve 302 is a high-precision cylinder liner groove. The internal dimensions are the same as the standard cylinder liner dimensions in actual use, and it has multiple sizes. The external dimensions are standard storage dimensions. When stored, the detection module 3 is generally placed in the storage slot 104. When in use, it is selected. Similarly, when not in use, the detection spring 704 of the detection component 7 is removed and placed in the storage box 9. The inside of the storage box 9 is filled with sponge, and the detection component 7 is placed on the sponge to avoid collisions that may cause errors as a precision detection mechanism.

[0037] Reference Figure 6 The detection component 7 consists of a first main rod 701 and a second auxiliary rod 702. Both the first main rod 701 and the second auxiliary rod 702 have a blade tip and a handle. A blade contact rod 703 is fixedly connected to the blade tip of both the first main rod 701 and the second auxiliary rod 702. The blade contact rods 703 are staggered. When the first main rod 701 and the second auxiliary rod 702 are closed, the outer surfaces of the two blade contact rods 703 overlap, indicating that the distance is zero. This testing method is similar to the use of a vernier caliper. The handles of the first main rod 701 and the second auxiliary rod 702 are connected by a detection spring 704. The detection spring 704 has various lengths for selection during use, so that it always maintains the tension between the first main rod 701 and the second auxiliary rod 702. The handles of the first main rod 701 and the second auxiliary rod 702 are also equipped with angle stabilizers 707. The angle stabilizers 707 are used to fix the relative position of the first main rod 701 and the second auxiliary rod 702 at the beginning of use, and to overcome the effect of the detection spring 704.

[0038] The lower laser generator 706 and the upper laser generator 705 are respectively installed at the ends of the handles of the first main rod 701 and the second auxiliary rod 702. Both the lower laser generator 706 and the upper laser generator 705 are rotatable structures and always face each other. They are used to calculate the opening distance between the second auxiliary rod 702 and the first main rod 701, and to infer the size of the opening gap using the ratio.

[0039] The basic relationship of lever amplification in this detection process: ; Where ΔX: displacement change of the handle (laser measurement value); ΔGap: The displacement change of the knife-edge contact rod (703) (change in the opening gap of the sealing ring); K: Lever amplification factor, determined by the ratio of the lever arm lengths of the first main lever (701) and the second auxiliary lever (702).

[0040] Actual clearance calculation formula: ; Gap_actual (Gapa): The actual gap between the openings of the sealing ring; Gap_initial(Gapi): Initial gap setting (calibrated using standard gauge blocks); D_current(Dc): Current laser measurement value; D_initial(Di): Initial laser measurement value.

[0041] When using tilt angles for ultra-high precision measurements: ; ΔL: Displacement of the light spot on the photosensitive plate (10); L: The distance from the laser emission point to the photosensitive plate; θ: Initial incident angle of the laser (usually an obtuse angle of 100°-120°); Δα: The change in angle of the second auxiliary rod (702).

[0042] The conversion relationship between angle change and gap change: ΔGap = R × Δα Δα = ΔL × cos²θ / L Where R is the effective radius from the blade contact rod to the hinge point.

[0043] Overall magnification calculation: Total magnification = Mechanical lever magnification × Optical geometric magnification = K × (L / R × cos²θ) In this embodiment, it should be specifically explained that when the upper laser generator 705 needs to perform further ultra-high precision measurement of the sealing ring, it forms an obtuse angle with the outer side of the second auxiliary rod 702 and illuminates the photosensitive plate 10. The photosensitive plate 10 collects the light from the upper laser generator 705. When the gap size changes, the second auxiliary rod 702 still amplifies the detection value using a proportional method. The obtuse angle relationship between the upper laser generator 705 and the second auxiliary rod 702 further amplifies the detection value.

[0044] The lever amplification factor K is 8-15 times, preferably 10 times, and the measurement resolution of the upper laser generator 705 and the lower laser generator 706 is not less than 0.1μm; The actual opening gap is calculated using the formula Gap = G0 + (D - D0) / K. Where G0 is the reference gap calibrated by the standard gauge block, D is the current laser measurement value, and D0 is the reference laser value.

[0045] Reference Figure 7 The locking assembly 6 includes upper and lower clamping plates 601, which are two layers. The upper and lower layers are respectively equipped with locking bolts 602 and threaded sleeves 603. The locking bolts 602 and threaded sleeves 603 are connected by threads. The locking assembly 6 is installed on the front of the lower base 1 and the upper cover plate 2, and applies combined pressure to the lower base 1 and the upper cover plate 2. As a non-preferred option, the locking assembly 6 can be replaced with an automatically controlled hydraulic rod.

[0046] In this embodiment, it should be specifically explained that: the locking component 6 is linked with the pressure sensor 11. When the upper cover plate 2 is on the lower cover, the pressure-sensitive block 204 applies pressure to the pressure sensor 11. The pressure sensor 11 has a spring installed inside, which applies a reverse force to the pressure-sensitive block 204. At the same time, it detects the combined pressure of the upper cover plate 2 and the lower base 1. When the pressure reaches the threshold, it is determined that the lower base 1 and the upper cover plate 2 are completely combined, and the upper mold sleeve 301 and the lower mold sleeve 302 form a complete circle.

[0047] Reference Figure 8 The guide assembly 8 includes a horizontal slot 801 and a sliding plate 802. The sliding plate 802 has a sliding groove, and a rotating slot 803 is installed in the sliding groove. The rotating slot 803 allows free rotation and up-down sliding. The first main rod 701 and the second auxiliary rod 702 are respectively installed on the horizontal slot 801 and the rotating slot 803.

[0048] In this embodiment, it should be specifically noted that the guide component 8 provides auxiliary support for the detection component 7, keeping it vertical and not supplementing the deformation force. Changes in the workpiece 4 to be tested will freely drive changes in the detection component 7.

[0049] Working principle of the invention: The main problem solved by this embodiment is to combine mechanical lever amplification and laser measurement to achieve a dual amplification effect. This enables static gap measurement, dynamic rebound monitoring and long-term elastic decay assessment through a single device. At the same time, it adopts a replaceable mold to adapt to different specifications of sealing rings, which is highly versatile and solves the problems of poor measurement accuracy and cumbersome measurement methods of current turbocharger sealing rings.

[0050] The specific steps are as follows:

[0051] Open the upper cover 2, take out the appropriate detection module 3 from the storage slot 104 and place it in the lower mold slot 103. The upper mold sleeve 301 is installed in the upper mold slot 202, and the lower mold sleeve 302 is installed in the lower mold slot 103. After installation, place the workpiece 4 to be tested in the workpiece slot 303. The clamping rod 501 automatically clamps the workpiece 4 to be tested through the inclined plane. At this time, install the detection component 7. Take out the detection component 7 with a suitable detection range from the storage box 9 and install it on the guide component 8. First place the first main rod 701 in the water. In the flat slot 801, the appropriate length of the angle stabilizer 707 is adjusted so that the opening width of the blade contact rod 703 is close to the gap width. After the blade contact rod 703 is placed in the gap, the second auxiliary rod 702 is installed on the rotating slot 803 and the angle stabilizer 707 is released. The detection spring 704 applies a pushing force to the second auxiliary rod 702. The distance between the upper laser generator 705 and the lower laser generator 706 increases, so that the distance of the blade contact rod 703 can be calculated proportionally, and the unloaded size of the opening gap can be obtained. Cover the upper cover plate 2, install the locking assembly 6, and tighten the locking bolt 602. The pressure between the lower base 1 and the upper cover plate 2 increases continuously. The pressure sensor 11 detects the pressure applied to the pressure sensor 11 by the pressure sensing block 204. When the pressure reaches the threshold, it is determined that the upper mold sleeve 301 and the lower mold sleeve 302 are successfully docked. Since the workpiece groove 303 has a standard high-precision size, the workpiece 4 to be tested is squeezed by the standard size at this time, and the opening gap of the workpiece 4 to be tested becomes smaller. During this process, the gap between the two knife-edge contact rods 703 decreases. After being amplified by the first main rod 701 and the second auxiliary rod 702, the upper laser generator 705 and the lower laser generator 706 measure the amplified variable value to obtain the change value of the opening gap under the standard size pressure, and calculate the high pressure gap size under the standard cylinder liner size. The device is left to stand still for a long time. After a preset time, the top cover plate 2 is slowly released. At this time, the workpiece 4 under test has a tendency to recover its original shape due to the metal memory ability under the condition of losing pressure. The detection component 7 monitors the dynamic rebound process of the workpiece 4 under test during this process, detects the difference between its final value and the initial value, calculates the long-term elastic decay, and judges and infers the long-term service life of the sealing ring in the pressure booster. When further ultra-high precision measurement of the sealing ring is required, a photosensitive plate 10 is installed, and the upper laser generator 705 is adjusted to illuminate the photosensitive plate 10 at an obtuse angle to the outer side of the second auxiliary rod 702. The photosensitive plate 10 collects the light from the upper laser generator 705. When the gap size changes, the proportion of the second auxiliary rod 702 amplifies the detection value, and the obtuse angle between the upper laser generator 705 and the second auxiliary rod 702 further amplifies the detection value. By detecting the position of the light falling on the photosensitive plate 10 and statistically analyzing the position information of the upper laser generator 705, the movement of the knife-edge contact rod 703 can be further calculated. Since this process involves many detection parameters and is relatively difficult to calculate, it is not used as the main detection method. Whether to implement this process can be determined as needed.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 detecting the accuracy of the opening size of a turbocharger sealing ring, comprising a lower base (1) and an upper cover plate (2), characterized in that: The lower base (1) includes a base body (101). A detection groove (102) is provided on the upper surface of the base body (101). The lower base (1) and the upper cover plate (2) are fixed by a locking assembly (6). A lower mold groove (103) is provided in the middle of the interior of the base body (101), and multiple storage slots (104) are provided on the outer side. The lower mold groove (103) is used to fix the detection module (3) in use, and the storage slots (104) are used to place unused detection modules (3). The detection module (3) contains a workpiece (4) to be tested. The base body (101) is fixedly connected to the side of the lower mold groove (103). A clamping component (5) is installed on the support frame (105). A placement groove (107) is opened on the front of the top of the base body (101). A photosensitive plate (10) is placed on the placement groove (107). A detection component (7) and a guide component (8) are also placed on the front of the top of the base body (101). The detection component (7) consists of a first main rod (701) and a second auxiliary rod (702). The first main rod (701) and the second auxiliary rod (702) have a blade tip and a handle. The blade tips of the first main rod (701) and the second auxiliary rod (702) are fixedly connected to blade contact rods (703). The blade contact rods (703) are staggered. The handles of the first main rod (701) and the second auxiliary rod (702) are connected by a detection spring (704). The detection spring (704) has multiple lengths. An angle stabilizer (707) is also installed on the handles of the first main rod (701) and the second auxiliary rod (702). The first main rod (701) and the second auxiliary rod (702) are respectively equipped with a lower laser generator (706) and an upper laser generator (705) at the ends of their handles. Both the lower laser generator (706) and the upper laser generator (705) are rotatable structures and always face each other. They are used to calculate the opening distance between the second auxiliary rod (702) and the first main rod (701) and to infer the size of the opening gap using a ratio. The detection module (3) includes an upper mold sleeve (301) and a lower mold sleeve (302). Both the upper mold sleeve (301) and the lower mold sleeve (302) have workpiece grooves (303). Both the upper mold sleeve (301) and the lower mold sleeve (302) have clamping grooves (304) on their outer sides. The clamping assembly (5) fixes the orientation of the workpiece (4) to be tested inside through the clamping grooves (304). The upper mold sleeve (301) and the lower mold sleeve (302) have detection grooves (305) on their front sides. The knife-edge contact rod (703) is installed at the detection groove (305). The detection inclined groove (102) corresponds to the position of the detection groove (305).

2. The device for detecting the accuracy of the opening size of a turbocharger sealing ring according to claim 1, characterized in that: The upper cover plate (2) includes a cover plate body (201), and an upper mold groove (202) is provided in the middle of the cover plate body (201). The upper mold groove (202) is used to fix the detection module (3). A connecting block (203) is fixedly connected to the front of the cover plate body (201). The bottom of the connecting block (203) is consistent with the overall plane of the cover plate body (201). A pressure-sensitive block (204) is installed on the inner side of the cover plate body (201). The pressure-sensitive block (204) is located on top of the pressure sensor (11).

3. The device for detecting the accuracy of the opening size of a turbocharger sealing ring according to claim 1, characterized in that: The clamping assembly (5) includes a clamping rod (501) and a clamping spring (502). The clamping rod (501) is fixed on the support frame (105) and installed on the clamping inner groove (106). The clamping rod (501) and the clamping spring (502) are in a sleeve relationship. The end of the clamping rod (501) located in the lower mold groove (103) is an inclined surface.

4. The device for detecting the accuracy of the opening size of a turbocharger sealing ring according to claim 1, characterized in that: The workpiece groove (303) in the upper mold sleeve (301) and lower mold sleeve (302) is a high-precision cylinder liner groove. The internal dimensions are the same as the standard cylinder liner dimensions in actual use, and it has multiple sizes. The external dimensions are standard storage dimensions.

5. The device for detecting the accuracy of the opening size of a turbocharger sealing ring according to claim 1, characterized in that: The locking assembly (6) includes upper and lower clamping plates (601), which are two layers. The upper and lower layers are respectively equipped with locking bolts (602) and threaded sleeves (603). The locking bolts (602) and threaded sleeves (603) are connected by threads. The locking assembly (6) is installed on the front of the lower base (1) and the upper cover plate (2).

6. The device for detecting the accuracy of the opening size of a turbocharger sealing ring according to claim 1, characterized in that: A storage box (9) is placed on the base plate (108) at the bottom of the base body (101). The storage box (9) is used to store the detection component (7).

7. The device for detecting the accuracy of the opening size of a turbocharger sealing ring according to claim 1, characterized in that: The guide assembly (8) includes a horizontal slot (801) and a sliding plate (802). The sliding plate (802) has a sliding groove, and a rotating slot (803) is installed in the sliding groove. The rotating slot (803) allows free rotation and up-down sliding. The first main rod (701) and the second auxiliary rod (702) are respectively installed on the horizontal slot (801) and the rotating slot (803).

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