CN115575049A - Automobile turbocharger detection device and detection method - Google Patents

Abstract

The invention discloses a detection device and a detection method for an automobile turbocharger, which belong to the field of detection devices and comprise a detection platform plate, wherein the detection platform plate is provided with a fixing device, a first sealing detection device, a distance detection device and a position adjusting device, the fixing device comprises a fixing plate, the automobile turbocharger is fixed on the fixing plate, the first sealing detection device comprises a plugging device and an air supply device, the air supply device is arranged at the bottom of the fixing device, and the position adjusting device is arranged on the side edge of the automobile turbocharger. The invention can carry out sealing leakage detection on the volute part and the intermediate part of the turbocharger, and has simple structure and convenient operation.

Description

Detection device and detection method for automobile turbocharger

Technical Field

The invention belongs to the technical field of turbochargers, and particularly relates to a detection device and a detection method for an automobile turbocharger.

Background

The vehicle turbocharger consists of three parts, namely a centrifugal compressor, a radial turbine and an intermediate body. The supercharger shaft is supported within the intermediate body by two floating bearings. The intermediate body is internally provided with an oil passage for lubricating and cooling the bearing. The performance requirements of each host factory on the turbine are continuously improved, and corresponding performance and reliability tests need to be known in the turbocharger fitting stage. The detection methods aiming at the main performance of the turbocharger are complex, and the methods need to be supported by high equipment cost.

Chinese patent application No. CN201010197383.8 discloses a sealing device for turbocharger detection, which includes: the device comprises a plugging core, a cylindrical base, a positioning sleeve, a locking nut and an O-shaped sealing ring, wherein the plugging core is connected with an air inlet bypass valve port and a detection connecting port, the cylindrical base is positioned at one end of a sealing device for detecting the turbocharger, the positioning sleeve is sleeved and used for locking and sealing the plugging core, and the locking nut and the O-shaped sealing ring are arranged at the air inlet bypass valve port. The middle of the plugging core is provided with a middle through hole, the middle through hole in the plugging core is communicated with the air inlet bypass valve port, and the plugging core is abutted against the cylindrical base by a positioning sleeve sleeved on the outer side of the plugging core to form locking and sealing. When the locking handle is manually lifted or pressed down, the mechanism and the air inlet of the turbocharger can be locked and sealed. The mechanism adopts a locking nut, a locking handle and an O-shaped sealing ring for sealing at multiple positions. The manual locking nut or the locking handle is adopted for sealing, but the turbocharger cannot be fixed during plugging, and the turbocharger is required to be aligned with each turbocharger continuously during sealing of the turbochargers, so that the detection efficiency is low.

The Chinese patent with the application number of CN2016109161027 discloses a turbocharger detection test method, which comprises the following steps: firstly, plugging each air inlet and outlet of the turbocharger, inflating the exhaust gas inlet and the exhaust gas outlet of the turbocharger after plugging, stopping inflating after a certain amount of inflation, keeping the original state, detecting each parameter of the air outlet and the exhaust gas inlet of the turbocharger, and analyzing and judging the air tightness of the turbocharger; and then discharging the gas in the cavity of the turbocharger, opening an air inlet and an exhaust gas outlet of the turbocharger by the gas blocking mechanism, then inflating the exhaust gas inlet of the turbocharger, and detecting various parameters of the exhaust gas inlet and the exhaust gas outlet of the turbocharger in the inflating process. The method has strong applicability, integrates the air tightness detection and the functional detection of the turbocharger, reduces the manufacturing cost of the detection equipment of the turbocharger, and improves the detection efficiency. However, the above detection scheme can only compare the turbocharger with the existing standard, and once a new model appears, the standard turbocharger needs to be found, and a new standard value needs to be debugged again, which is difficult to be judged quickly. And because the temperature is different during the test, the gas pressure can change, even if the sealing product is qualified, the sealing product can be different from the standard value.

Disclosure of Invention

In order to solve the problems, the invention provides a detection device for an automobile turbocharger, which comprises a detection platform plate, wherein a fixing device, a first sealing detection device, a distance detection device and a position adjusting device are arranged on the detection platform plate, the fixing device comprises a fixing plate, the automobile turbocharger is fixed on the fixing plate, the first sealing detection device comprises a blocking device and an air supply device, the air supply device is arranged at the bottom of the fixing device, the position adjusting device is arranged on the side edge of the automobile turbocharger, the blocking device and the distance detection device are both arranged on the position adjusting device, a guide hole is formed in the middle of the fixing plate, the air supply device is connected with an air guide pipe, the air guide pipe is connected with the automobile turbocharger through the guide hole, and a pressure sensor is connected onto the air guide pipe.

The preferred, position control device includes the I-shaped piece, one side of I-shaped piece is equipped with first guide block, be equipped with first horizontal shaft hole on the first guide block, plugging device includes threaded rod, shutoff piece and hand wheel, threaded rod is connected with in the first horizontal shaft hole to the bolt, the front end of threaded rod is connected with the shutoff piece, the rear end of threaded rod is connected with the hand wheel.

Preferably, the distance detection device comprises a second guide block, a second transverse shaft hole and a third transverse shaft hole perpendicular to the second transverse shaft hole are formed in the second guide block, a connecting rod is connected to the second transverse shaft hole, a clamping block is arranged on the connecting rod in a sliding mode, and a distance instrument is connected to the clamping block.

Preferably, first axial threaded holes are formed in two sides of the I-shaped piece in a penetrating mode, lifting bolt rods are connected to the first axial threaded holes, lifting bolt rod holes are formed in the first guide block and the second guide block, a track block is arranged on one side, close to the second guide block, of the I-shaped piece, and corresponding track grooves are formed in the second guide block.

Preferably, the detection platform plate is provided with a transverse rail groove, and the bottom of the I-shaped part is arranged in the transverse rail groove.

Preferably, the device further comprises a second sealing detection device, the second sealing detection device comprises a first clamping plate and a second clamping plate which are arranged in parallel, a threaded clamping rod is connected between the first clamping plate and the second clamping plate through a bolt, a gas transmission hole and a gas exhaust hole are formed in the middle of the first clamping plate and the second clamping plate, a gas transmission pipe and a gas exhaust pipe are connected to the gas transmission hole and the gas exhaust hole respectively, and gas flow sensors are arranged in the gas transmission hole and the gas exhaust hole.

Preferably, the bottom of detecting the platform board is equipped with detects the frame, the bottom of detecting the frame is equipped with the cabinet door, the inside of cabinet door is equipped with air feeder, it still is equipped with corresponding control button to detect the frame.

A detection method of an automobile turbocharger detection device is characterized by comprising the following steps: comprises the following steps;

s1, plugging, namely plugging an exhaust valve at a volute part of an automobile turbocharger by a plugging block;

s2, gas transmission, namely transmitting compressed gas from the bottom of the volute through a gas supply device;

s3, detecting volute sealing, namely detecting the gas pressure change in the volute through a pressure sensor, judging that the volute has a sealing problem if the pressure change is large, and judging that the volute does not have the sealing problem if the pressure change is small; if the difference is positive, judging that the pressure change is small;

s4, sealing the detection intermediate body, injecting quantitative compressed air into the air delivery hole, detecting air quantity through the air flow sensor at the air delivery hole to obtain an initial air quantity value, then comparing the air quantity value output through the air flow sensor at the air delivery hole with the initial air quantity value, if the difference value is overlarge, judging that the gap on the inner side of the intermediate body is large, oil leakage is easy, and if the difference value is too small, judging that the gap on the inner side of the intermediate body is small, oil leakage is not easy.

Preferably, the method further comprises a step S5 of detecting the actuator, and detecting whether the length of each reciprocating motion of the pull rod is consistent or not through the contact of the distance meter and the end part of the pull rod of the actuator.

The invention has the following beneficial effects;

1. this scheme is equipped with fixing device for fix the turbo charger of different models, still is equipped with position control device in this scheme, can carry out position control to plugging device, because the turbo charger's of different models size is different, plugging device can adjust self position through position control device, can make plugging device aim at turbo charger after finishing adjusting. Thereby realizing rapid plugging during detection.

2. When the scheme is used for detecting the parameters, the reasonable range can be calculated according to the existing parameters without depending on standard values, so that the rapid judgment is carried out, and the detection method is more optimized.

3. Still be equipped with apart from the appearance in this scheme, can detect the pull rod displacement range of the executor on the turbo charger, avoid having to remove not in place. The situation that the waste gas bypass valve cannot be opened in place is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a diagram of the structure of the inspection platform board of the present invention;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a side view structural diagram of FIG. 2;

FIG. 5 is a view showing the construction of a second seal inspection device according to the present invention;

FIG. 6 is a view of the construction of the distance meter of the present invention;

FIG. 7 is a schematic diagram of a lever structure according to the present invention.

In the figure: the device comprises a detection platform plate 1, a fixing plate 2, a guide hole 3, an air guide pipe 4, a pressure sensor 5, a I-shaped part 6, a first guide block 7, a first transverse shaft hole 8, a threaded rod 9, a blocking block 10, a hand wheel 11, a second guide block 12, a second transverse shaft hole 13, a third transverse shaft hole 14, a connecting rod 15, a clamping block 16, a distance meter 17, a first axial threaded hole 18, a lifting bolt rod 19, a lifting bolt rod hole 20, a track block 21, a track block 22, a transverse track groove 23, a first clamping plate 24, a second clamping plate 25, a threaded clamping rod 26, an air delivery hole 27, an air exhaust hole 28, an air delivery pipe 29, an air exhaust pipe 30, an air flow sensor 31, a detection rack 32, a cabinet door 33, an outer rod barrel 34, an inner barrel 35, a return spring 36, a groove part 37, a wheel disc 38, a gear 39, a pointer 40, a vacuum actuator 41, an execution rod 42, a compressor A volute, a B intermediate body and a turbine.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Example 1

The utility model provides an automobile turbocharger detection device, as shown in fig. 1-3, includes detection platform board 1, detects platform board 1 and installs on detecting frame 32, and one side is equipped with fixing device on detecting platform board 1 for be fixed with automobile turbocharger, and corresponding check out test set is installed to the opposite side. Fixing device includes fixed plate 2, be equipped with the fixed slot that is used for installing fixed plate 2 on detecting platform board 1, pass through the bolt and be connected with automobile turbocharger at the top of fixed plate 2, the bottom of the last compressor spiral case A of automobile turbocharger corresponds with fixed plate 2 positions, still be equipped with bullport 3 in the centre of fixed plate 2, what the top of bullport 3 corresponds is compressor spiral case A's air inlet, be connected with pressure sensor 5 on air inlet or air duct 4, and the bottom of bullport 3 is connected with air duct 4, air duct 4 is connected with air feeder, air feeder includes air tank and compressor, as shown in figure 1, air feeder locates the bottom that detects frame 32, the front end that detects frame 32 bottom still is equipped with cabinet door 33, can air feeder after cabinet door 33 is opened.

With reference to fig. 2 and 3, a first sealing detection device and a position adjustment device are arranged on the left side of the detection platform plate 1, the first sealing detection device comprises a plugging device and an air supply device, the air supply device is as above, the plugging device comprises a threaded rod 9, a plugging block 10 and a hand wheel 11, the plugging device is arranged on the position adjustment device, the adjustment device comprises an I-shaped piece 6, one side of the I-shaped piece 6 is provided with a first square guide block 7, the first guide block 7 is provided with a first transverse shaft hole 8, the threaded rod 9 passes through the first transverse shaft hole 8, the front end of the threaded rod 9 is connected with the plugging block 10, the rear end of the threaded rod is connected with the hand wheel 11, the threaded rod 9 and the plugging block 10 can be driven to move back and forth along the axial direction of the first transverse shaft hole 8 by rotating the hand wheel 11, and the plugging block 10 is of a circular elastic structure and is used for plugging the exhaust port part of the compressor a volute on the automobile turbocharger.

As shown in fig. 3, a first axial threaded hole 18 is formed in each of two sides of the i-shaped member 6, a lifting bolt hole 20 is formed in the first guide block 7, and a lifting bolt 19 penetrates through the first axial threaded hole 18 and the lifting bolt hole, and the first guide block 7 can be driven to move up and down by rotating the lifting bolt 19. Still be equipped with horizontal track groove 23 on the detection platform board 1, in horizontal track groove 23 was located to I-shaped 6 bottoms, I-shaped 6 can be along horizontal track groove 23 lateral shifting.

With reference to fig. 1 and 4, when detecting the compressor volute a part of the turbocharger, firstly, the turbocharger is fixed on the fixing plate 2, the bolt hole of the fixing plate 2 can fix the turbocharger, the air inlet at the bottom of the compressor volute a passes through the guide hole 3 to be connected with the air pipe 29, and after the turbocharger is fixed, the position of the plugging device needs to be adjusted, so that the plugging block 10 can be aligned to the air outlet of the compressor volute a. The I-shaped member 6 can drive the first guide block 7 to move transversely by matching with the transverse rail groove 23, and can drive the first guide block 7 to move up and down by rotating the lifting bolt rod 19. This realizes the omnidirectional movement of the first guide block 7 in the up-down direction and the left-right direction. The entire blocking device is located on the first guide block 7, so that the blocking device can be adjusted in any direction. After the position adjustment is finished, the hand wheel 11 is rotated to drive the blocking block 10 to block the exhaust port of the compressor volute A. Compressed gas is input into the compressor volute A through the gas supply device, the pressure change of the pressure sensor 5 is observed, and the sealing effect inside the compressor volute A is judged through the pressure change.

In the embodiment, when the compressor volute A of the same type of turbocharger is subjected to sealing detection, the compressor volute A can be quickly sealed only by adjusting the position adjusting device in advance. When the compressor volute A of the turbocharger of a new model is faced, the compressor volute A of the subsequent turbocharger can be quickly plugged only by carrying out position adjustment again. Compared with the prior art, after the turbocharger is fixed, the device can flexibly change the position of the plugging device, so that the plugging device can be quickly aligned with the exhaust port of the compressor volute A, and the subsequent turbochargers of the same type can be conveniently detected in batches.

Example 2

As shown in fig. 2 and 5, a second sealing detection device is further included, and the second sealing detection device is used for detecting whether oil leakage exists in the intermediate body part B of the turbocharger. An oil inlet and an oil outlet are arranged on two sides of the intermediate body B.

The second sealing detection device comprises a first clamping plate 24 and a second clamping plate 25 which are arranged in parallel, a threaded clamping rod 26 is connected between the first clamping plate 24 and the second clamping plate 25 through a bolt, an air delivery hole 27 and an exhaust hole 28 are formed in the middle of the first clamping plate 24 and the second clamping plate 25, an air delivery pipe 29 and an exhaust pipe 30 are connected to the air delivery hole 27 and the exhaust hole 28 respectively, and an air flow sensor 31 is arranged in the air delivery hole 27 and the exhaust hole 28.

When the device is installed, the first clamping plate 24 and the second clamping plate 25 are installed on two sides of the intermediate body B, so that the air conveying hole 27 and the air exhaust hole 28 are respectively connected with an oil inlet and an oil outlet of the intermediate body B, and then the first clamping plate 24 and the second clamping plate 25 move in the middle by rotating the upper bolt clamping rod and the lower bolt clamping rod until the air conveying hole 27 and the air exhaust hole 28 are respectively and tightly connected with the oil inlet and the oil outlet of the intermediate body B.

In the present embodiment, when the gas supply device is used, the gas is supplied to the gas transfer holes 27, and then the flow changes of the gas flow sensor 31 in the two gas transfer holes 27 and the gas discharge holes 28 before and after the gas supply device is compared, if the flow changes exceed the set range, it is determined that the oil leakage situation exists in the intermediate body B.

Example 3

In this embodiment, a distance detecting device is provided for detecting a wastegate valve on the turbocharger, a wastegate valve is provided at the outlet of the turbine C of the turbocharger, the wastegate valve is driven by a vacuum actuator 41 under vacuum to open, close and open/close by a lever mechanism, as shown in fig. 4, the lever mechanism includes an actuating rod 42 disposed outside the turbocharger, the actuating rod 42 is driven by the vacuum actuator 41 to move, and the wastegate valve is pushed by the actuating rod 42 to open by combining with fig. 7. If there is a deviation in the magnitude of the movement of the actuator lever 42, the wastegate valve opening is affected.

Distance detection device includes second guide block 12, be equipped with the horizontal shaft hole 13 of second on the second guide block 12 and with the perpendicular third horizontal shaft hole 14 that sets up in the horizontal shaft hole 13 of second, be connected with connecting rod 15 on the horizontal shaft hole 13 of second, the slip is equipped with clamp splice 16 on connecting rod 15, be connected with apart from appearance 17 on the clamp splice 16. The connecting rod 15 can move back and forth in the axial direction through the second transverse shaft hole 13, the position of the distance meter 17 is adjusted, the distance meter 17 can be close to the actuating rod 42, the second transverse shaft hole 13 and the third transverse shaft hole 14 are communicated with each other, and the connecting rod 15 in the third transverse shaft hole 14 can be locked by inserting a bolt into the second transverse shaft hole 13. Also be equipped with lifting bolt pole hole 20 on the second guide block 12, one side that I-shaped piece 6 is close to second guide block 12 is equipped with track piece 21, be equipped with corresponding rail groove 22 on the second guide block 12, insert lifting bolt pole 19 through the lifting bolt hole on I-shaped piece 6 left first axial screw hole 18 and the second guide block 12, can control second guide block 12 and reciprocate, again through the cooperation that is equipped with horizontal track groove 23 on I-shaped piece 6 and the detection platform board 1, can also drive second guide block 12 and remove about, thereby can adjust distance appearance 17 the position all around, make things convenient for it to aim at with executive rod 42.

As shown in fig. 6, the distance meter 17 includes an outer barrel 34 and an inner barrel 35, the inner barrel 35 is slidably disposed in the outer barrel 34, a return spring 36 is disposed between an end of the inner barrel 35 and an inner wall of the outer barrel 34, a slot portion 37 is disposed on the inner barrel 35, a bottom of the slot portion 37 is a tooth portion structure, a wheel disc is rotatably disposed on the outer barrel 34, a gear 39 is disposed on an outer side of the wheel disc, the gear 39 is engaged with the tooth portion structure of the slot portion 37, and a pointer 40 is fixedly disposed in a middle of the wheel disc. The outside of rim plate is equipped with transparent dial cover, and dial cover upper circumferential edge is equipped with the scale.

During detection, the end parts of the inner cylinder 35 and the actuating rod 42 are aligned and closely contacted, when the vacuum actuator 41 drives the actuating rod 42 to move towards the inner cylinder 35, the inner cylinder 35 is driven to move inwards, the inner cylinder drives the wheel disc to rotate, the pointer 40 on the wheel disc points to the scales on the wheel disc, and therefore whether the moving distance of the actuating rod 42 moves to a specified distance or not is displayed, and whether the vacuum actuator 41 fails or not is judged.

Example 4

A detection method of a detection device of an automobile turbocharger comprises the following steps;

s1, plugging, namely plugging an exhaust valve at a volute part of an automobile turbocharger through a plugging block 10;

s2, gas transmission, namely transmitting compressed gas from the bottom of the volute through a gas supply device;

s3, detecting volute sealing, namely detecting the pressure change of gas in the volute through a pressure sensor 5, judging that the volute has a sealing problem if the pressure change is large, and judging that the volute has no sealing problem if the pressure change is small; if the difference is positive, the pressure change is determined to be small.

In the embodiment, the gas pressure in the volute of the first six automobile turbochargers of the same type is detected, and the gas pressure values after 3 minutes of gas introduction are respectively 33Kpa, 34Kpa, 32Kpa, 23Kpa, 33Kpa and 32Kpa. Then, the average value of all the internal gas pressure values was calculated to be 31.2 Kpa. And the pressure value of the gas in each volute is differenced with the average value and is respectively 1.8 Kpa, 2.8 Kpa, 0.8 Kpa, -8.2 Kpa, 1.8 Kpa and 2.8 Kpa. From the above data, it can be seen that the fourth automotive turbocharger had the problem of insufficient sealing. The embodiment can judge the product with the sealing fault without a standard value.

To further optimize the algorithm, the initial average value of 31.2 Kpa was substituted into subsequent calculations at the time of turbocharger testing for a subsequent second batch of automobiles. After the detection is carried out on the internal gas pressure of the volute of the four subsequent batches of four automobile turbochargers of the same type, the four internal gas pressure values of the volute are respectively 21Kpa, 31Kpa, 34Kpa and 34Kpa obtained according to the method. A new average value of 30 Kpa was calculated. The new average is further averaged with the initial average to obtain a new average of 30.6 Kpa. According to further optimization, the new average value of 30.6 Kpa is differed from the pressure value of the gas in the volute of the four automobile turbochargers of the second batch to obtain difference values which are-9.6 Kpa, 0.4 Kpa, 3.4 Kpa and 3.4 Kpa respectively. And judging that the first automobile turbocharger in the second batch has a fault according to the optimization.

S4, detecting the intermediate B, sealing, injecting quantitative compressed air into the air delivery hole 27, detecting air volume through the air flow sensor 31 at the air delivery hole 27 to obtain an initial air volume value, then comparing the air volume value output by the air flow sensor 31 at the air delivery hole 27 with the initial air volume value, if the difference value is overlarge, judging that the gap at the inner side of the intermediate B is large, oil leakage is easy, and if the difference value is too small, judging that the gap at the inner side of the intermediate B is small, oil leakage is not easy.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an automobile turbocharger detection device, includes detection platform board (1), its characterized in that: be equipped with fixing device, first sealed detection device, distance detection device and position control device on detection platform board (1), fixing device includes fixed plate (2), be fixed with car turbo charger on fixed plate (2), first sealed detection device includes plugging device and air feeder, fixing device's bottom is located to air feeder, position control device locates car turbo charger's side, plugging device and distance detection device all are located position control device, be equipped with bullport (3) in the middle of fixed plate (2), air feeder is connected with air duct (4), air duct (4) are connected with car turbo charger through bullport (3), be connected with pressure sensor (5) on air duct (4).

2. The detection device for the turbocharger of the automobile according to claim 1, characterized in that: the position adjusting device comprises an I-shaped part (6), one side of the I-shaped part (6) is provided with a first guide block (7), a first transverse shaft hole (8) is formed in the first guide block (7), the plugging device comprises a threaded rod (9), a plugging block (10) and a hand wheel (11), the threaded rod (9) is connected to the inner bolt of the first transverse shaft hole (8), the front end of the threaded rod (9) is connected with the plugging block (10), and the rear end of the threaded rod (9) is connected with the hand wheel (11).

3. The detection device for the turbocharger of the automobile according to claim 2, characterized in that: the distance detection device comprises a second guide block (12), a second transverse shaft hole (13) and a third transverse shaft hole (14) vertically arranged with the second transverse shaft hole (13) are arranged on the second guide block (12), a connecting rod (15) is connected to the second transverse shaft hole (13), a clamping block (16) is arranged on the connecting rod (15) in a sliding mode, and a distance meter (17) is connected to the clamping block (16).

4. The detection device for the turbocharger for the automobile according to claim 3, wherein: the utility model discloses a rail guide device, including I-shaped spare (6), first axial screw hole (18) all run through on both sides of I-shaped spare (6), all be connected with lifting bolt pole (19) on first axial screw hole (18), all be equipped with lifting bolt pole hole (20) on first guide block (7) and second guide block (12), one side that I-shaped spare (6) are close to second guide block (12) is equipped with track piece (21), be equipped with corresponding rail groove (22) on second guide block (12).

5. The detection device of the turbocharger for the automobile according to claim 4, characterized in that: be equipped with horizontal track groove (23) on detection platform board (1), I-shaped spare (6) bottom is located in horizontal track groove (23).

6. The detection device of the turbocharger for the automobile according to claim 5, characterized in that: still include the sealed detection device of second, the sealed detection device of second includes parallel arrangement's first splint (24) and second splint (25), bolted connection has screw thread clamping bar (26) between first splint (24) and second splint (25), the centre of first splint (24) and second splint (25) is equipped with gas transmission hole (27) and exhaust hole (28), be connected with gas-supply pipe (29) and blast pipe (30) on gas transmission hole (27) and exhaust hole (28) respectively, be equipped with gas flow sensor (31) in gas transmission hole (27) and exhaust hole (28).

7. The detection device for the turbocharger of the automobile according to claim 1, characterized in that: the bottom that detects platform board (1) is equipped with detects frame (32), the bottom that detects frame (32) is equipped with cabinet door (33), the inside of cabinet door (33) is equipped with air feeder, it still is equipped with corresponding control button to detect frame (32).

8. A detection method of an automobile turbocharger detection device is characterized by comprising the following steps: comprises the following steps;

s1, plugging, namely plugging an exhaust valve at a volute part of an automobile turbocharger through a plugging block (10);

s2, gas transmission, namely transmitting compressed gas from the bottom of the volute through a gas supply device;

s3, detecting volute sealing, namely detecting the pressure change of gas in the volute through a pressure sensor (5), judging that the volute has a sealing problem if the pressure change is large, and judging that the volute has no sealing problem if the pressure change is small, wherein the method for the pressure change of the volute comprises the steps of collecting the internal gas pressure values of all volutes of the same type, calculating the average value of all the internal gas pressure values, and then making a difference value between the internal gas pressure value of each volute and the average value, wherein the difference value is negative, and judging that the pressure change is large; if the difference is positive, judging that the pressure change is small;

s4, the detection intermediate body (B) is sealed, quantitative compressed air is injected into the air delivery hole (27), the air quantity is detected through the air flow sensor (31) at the air delivery hole (27) to obtain an initial air quantity value, then the air quantity value output through the air flow sensor (31) at the air delivery hole (27) is compared with the initial air quantity value, if the difference value is overlarge, the gap at the inner side of the intermediate body (B) is judged to be large, oil leakage is easy to occur, and if the difference value is too small, the gap at the inner side of the intermediate body (B) is judged to be small, and oil leakage is not easy to occur.

9. The detection method of the detection device of the turbocharger for the automobile according to claim 8, characterized in that: the method further comprises a step S5 of detecting the actuator, and detecting whether the length of each reciprocating motion of the pull rod is consistent or not through the contact of the distance meter (17) and the end part of the pull rod of the actuator.

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