Hardness detection device for machining turbine shell of vehicle turbocharger

Abstract

The utility model discloses a hardness detection device for processing a turbine shell of a vehicle turbocharger, and belongs to the technical field of automobile part processing, and the hardness detection device is characterized by comprising a frame, and a conveying assembly is arranged in the frame. After the display controller receives a detection instruction, the electric push rod is controlled to be started, the telescopic end of the electric push rod stretches out according to a preset program and drives the fixing plate to move towards the turbine shell, the pressing block on the inner side of the fixing plate gets close to the turbine shell accordingly, and the vacuum anti-skid clamping pad on the inner side of the pressing block makes contact with the surface of the turbine shell firstly; the clamping device can be tightly attached to the surface of the turbine shell, preliminary friction force is provided, displacement of the turbine shell in the clamping process is prevented, and along with continuous pushing of the electric push rod, the pressing block applies clamping force to the turbine shell.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a hardness testing device for processing turbine housings of automotive turbochargers. Background Technology

[0002] A turbocharger is not a power source itself; it works by utilizing the residual energy in the engine's exhaust. Its function is to provide more air to the engine. The turbocharger is installed on the engine's exhaust pipe. The exhaust gas from the engine cylinders drives the turbine to rotate, which in turn drives the compressor impeller to pressurize the air filtered by the air filter and send it into the cylinder.

[0003] During the production and processing, it is often necessary to test the hardness of the turbine housing to prevent serious consequences due to insufficient hardness. However, the current hardness testing device is cumbersome to fix the turbine housing and does not make appropriate adjustments and fixation according to the size of the turbine housing.

[0004] An existing patent (publication number: CN216464160U) discloses a hardness testing device for machining the turbine housing of an automotive turbocharger. This utility model uses a geared disc, a first limiting block, and a second limiting block. Rotating the geared disc causes the first limiting block to fit against the side of the automotive turbocharger turbine housing, thereby fixing the turbine housing. Then, the second limiting block slides through a slot to continue to fit against the automotive turbocharger turbine housing, and rotating the limiting bolt causes the bottom of the limiting bolt to fit tightly against the bottom of the geared disc, preventing the second limiting block from continuing to slide on the geared disc. This facilitates clamping and fixing the automotive turbocharger turbine housing, making subsequent machining easier.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, the hardness testing of the turbine housing of automotive turbochargers involves multiple steps and component operations, which are relatively cumbersome, time-consuming, and inefficient. They cannot achieve automated and batch testing, which seriously affects the speed of hardness testing in production and thus reduces production efficiency.

[0006] To address this, a hardness testing device for machining turbine housings of automotive turbochargers is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a hardness testing device for the processing of turbine housings of automotive turbochargers. This device can solve the problem that the hardness testing of turbine housings of automotive turbochargers in the above-mentioned patent involves multiple steps and components, which is relatively cumbersome, time-consuming, and inefficient. It cannot achieve automated and batch testing, which seriously affects the speed of hardness testing in production and thus reduces production efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a hardness testing device for machining turbine housings of automotive turbochargers, comprising a frame, a conveying assembly disposed inside the frame, a display controller disposed on the left side of the frame, brackets bolted to both sides of the frame, an automatic fixing mechanism disposed inside the brackets, a top plate bolted to the top of the brackets, a position sensing structure disposed at the bottom of the top plate, and a hardness testing structure disposed in the middle of the bottom of the top plate;

[0009] The automatic fixing mechanism includes an electric push rod bolted to the outside of the bracket. The electric push rod is electrically connected to the display controller. The telescopic end of the electric push rod passes through the outside of the bracket. A fixing plate is bolted to the telescopic end of the electric push rod. A pressure block is bolted to the inside of the fixing plate. A distance sensor is embedded inside the inside of the pressure block. A vacuum anti-slip pad is adhered to the inside of the pressure block.

[0010] Preferably, the conveying assembly includes a servo motor bolted to the left side of the frame, the output end of the servo motor passing through the left side of the frame, and the servo motor being electrically connected to the display controller.

[0011] Preferably, the output end of the servo motor is bolted to a spindle, and the right side of the spindle is rotatably connected to the right side inside the frame.

[0012] Preferably, a secondary shaft is rotatably connected to the rear side inside the frame, and a conveyor belt is sleeved on the outer side of the secondary shaft and the main shaft.

[0013] Preferably, the position sensing structure includes a suspension rod bolted to the bottom of the top plate, and a fixing rod is fixedly connected to the bottom of the suspension rod.

[0014] Preferably, a position sensor is bolted to the bottom of the fixing rod, and the position sensor is electrically connected to the display controller.

[0015] Preferably, the hardness detection structure includes an electric telescopic rod bolted to the top of the top plate, the telescopic end of the electric telescopic rod penetrating through the top of the top plate, and the electric telescopic rod being electrically connected to the display controller.

[0016] Preferably, the telescopic end of the electric telescopic rod is bolted with a bearing plate, and a hardness detector is provided at the bottom of the bearing plate. The hardness detector is electrically connected to the display controller.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting up a conveying component and an automatic fixing mechanism, when the turbine housing needs to be detected and positioned, the display controller receives the detection command and controls the electric push rod to start. The telescopic end of the electric push rod extends according to the preset program, driving the fixing plate to move towards the turbine housing. The pressure block on the inner side of the fixing plate then approaches the turbine housing. The vacuum anti-slip pad on the inner side of the pressure block first contacts the surface of the turbine housing. Due to the characteristics of the vacuum anti-slip pad, it can fit tightly against the surface of the turbine housing, providing initial friction and preventing the turbine housing from shifting during the clamping process. As the electric push rod continues to push, the pressure block applies clamping force to the turbine housing. The distance sensor embedded inside the pressure block monitors the change in distance between the pressure block and the turbine housing in real time. When the distance reaches the preset clamping distance value, the distance sensor feeds back the signal to the display controller. After receiving the signal, the display controller controls the electric push rod to stop extending, thereby achieving precise control of the clamping force of the turbine housing, ensuring that the turbine housing is firmly fixed, and avoiding damage to the turbine housing due to excessive clamping force.

[0019] 2. This application, by setting up a conveying assembly, a position sensing structure, and a hardness detection structure, places the turbine housing on top of the conveying assembly. When the conveying assembly transports the turbine housing to the bottom of the top plate, the position sensing structure, located at the bottom of the top plate, can monitor the position of the turbine housing in real time during the conveying process. When the turbine housing reaches the predetermined detection position, the position sensing structure sends a position signal to the display controller. Upon receiving the position signal, the display controller stops the conveying assembly and activates the automatic fixing mechanism to secure the turbine housing. After the turbine housing is securely fixed, the display controller activates the hardness detection structure, which begins the hardness detection operation on the turbine housing. Pressure is applied to the surface of the turbine housing, and the indentation data is measured to calculate the hardness value. The hardness detection structure transmits the detected hardness data to the display controller in real time. The display controller processes and analyzes the data to determine whether the hardness of the turbine housing meets the requirements. After the detection of one turbine housing is completed, the display controller controls the automatic fixing mechanism to release the turbine housing, and at the same time controls the conveying component to transport the detected turbine housing. The next turbine housing is then transported to the detection position, and the above detection process is repeated. In this way, the hardness detection of turbine housings is automated and batched, which greatly improves the detection efficiency and meets the requirements for hardness detection speed in the production and processing process. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the hardness testing device for machining the turbine housing of a vehicle turbocharger according to this utility model.

[0021] Figure 2 This is a structural diagram of the automatic fixing mechanism of this utility model;

[0022] Figure 3 This is a structural diagram of the conveying assembly of this utility model;

[0023] Figure 4 This is a structural diagram of the hardness testing structure of this utility model;

[0024] Figure 5 This is a structural diagram of the position sensing structure of this utility model.

[0025] In the diagram, 1. Frame; 2. Conveying assembly; 201. Servo motor; 202. Main shaft; 203. Secondary shaft; 204. Conveyor belt; 3. Display controller; 4. Support; 5. Automatic fixing mechanism; 501. Electric push rod; 502. Fixing plate; 503. Pressure block; 504. Distance sensor; 505. Vacuum anti-slip pad; 6. Top plate; 7. Position sensing structure; 701. Suspension rod; 702. Fixing rod; 703. Position sensor; 8. Hardness detection structure; 801. Electric telescopic rod; 802. Bearing plate; 803. Hardness detector. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A hardness testing device for machining turbine housings of automotive turbochargers includes a frame 1, a conveying assembly 2 inside the frame 1, a display controller 3 on the left side of the frame 1, brackets 4 on both sides of the frame 1, an automatic fixing mechanism 5 inside the brackets 4, a top plate 6 on the top of the brackets 4, a position sensing structure 7 at the bottom of the top plate 6, and a hardness testing structure 8 in the middle of the bottom of the top plate 6.

[0029] The automatic fixing mechanism 5 includes an electric push rod 501 bolted to the outside of the bracket 4. The electric push rod 501 is electrically connected to the display controller 3. The telescopic end of the electric push rod 501 passes through the outside of the bracket 4. A fixing plate 502 is bolted to the telescopic end of the electric push rod 501. A pressure block 503 is bolted to the inside of the fixing plate 502. A distance sensor 504 is embedded inside the inside of the pressure block 503. A vacuum anti-slip pad 505 is adhered to the inside of the pressure block 503.

[0030] In this embodiment: After the turbine housing is placed on the conveying assembly 2, it is automatically conveyed to the detection area below the top plate 6. The position sensing structure 7 monitors the position of the turbine housing in real time. When the turbine housing reaches the predetermined detection position, the position sensing structure 7 sends a signal to the display controller 3. At the same time, the display controller 3 controls the electric push rod 501 to work. The telescopic end of the electric push rod 501 pushes the fixing plate 502 and the pressure block 503 on its inner side to move towards the turbine housing. After the vacuum anti-slip pad 505 on the inner side of the pressure block 503 contacts the turbine housing, its anti-slip properties can initially fix the position of the turbine housing and prevent it from sliding during the clamping process. As the electric push rod 501 continues to extend, the pressure block 503 applies a clamping force to the turbine housing. The distance sensor 504 embedded in the inner side of the pressure block 503 monitors the distance to the turbine housing in real time. When the preset clamping distance is reached... At the same time, the distance sensor 504 feeds a signal back to the display controller 3, which controls the electric push rod 501 to stop extending, thereby achieving precise control of the clamping force. This ensures that the turbine housing is firmly fixed and avoids damage to the turbine housing due to excessive clamping force, providing stable conditions for subsequent accurate hardness testing. Then, the hardness testing structure 8 is activated to perform hardness testing. The hardness testing structure 8 applies pressure to the surface of the turbine housing according to relevant principles and measures the data to calculate the hardness value. The data is then transmitted to the display controller 3 for processing and analysis. After one turbine housing is tested, the display controller 3 controls the automatic fixing mechanism 5 to release the turbine housing, and at the same time, the conveying component 2 transports the next turbine housing to the testing position. The above testing process is repeated, thereby realizing automated batch testing and meeting the requirements of production and processing for hardness testing speed.

[0031] Specifically, such as Figure 2 As shown, the conveying assembly 2 includes a servo motor 201 bolted to the left side of the frame 1. The output end of the servo motor 201 passes through the left side of the frame 1, and the servo motor 201 is electrically connected to the display controller 3.

[0032] Specifically, such as Figure 2 As shown, the output end of the servo motor 201 is bolted to the spindle 202, and the right side of the spindle 202 is rotatably connected to the right side inside the frame 1.

[0033] Specifically, such as Figure 2 As shown, a secondary shaft 203 is rotatably connected to the rear side inside the frame 1, and a conveyor belt 204 is sleeved on the outer side of the secondary shaft 203 and the main shaft 202.

[0034] In this embodiment: by setting a servo motor 201 as a power source and electrically connecting it to the display controller 3, precise control can be achieved. The display controller 3 can set the speed and direction of rotation of the servo motor 201 according to production requirements, thereby precisely controlling the running speed and direction of the conveyor belt 204, ensuring that the turbine housing can be accurately and stably transported to the detection position. The main shaft 202 and the secondary shaft 203 are respectively rotatably connected to both sides inside the frame 1 and are sleeved with the conveyor belt 204. This structural design makes the operation of the conveyor belt 204 more stable. When the servo motor 201 drives the main shaft 202 to rotate, the friction between the conveyor belt 204 and the main shaft 202 and the secondary shaft 203 can smoothly transport the turbine housing from one end to the other end, reducing the shaking and deviation of the turbine housing during the transportation process, and providing a good foundation for subsequent detection.

[0035] Specifically, such as Figure 5 As shown, the position sensing structure 7 includes a suspension rod 701 bolted to the bottom of the top plate 6, and a fixing rod 702 is fixedly connected to the bottom of the suspension rod 701.

[0036] Specifically, such as Figure 5 As shown, a position sensor 703 is bolted to the bottom of the fixing rod 702, and the position sensor 703 is electrically connected to the display controller 3.

[0037] In this embodiment: the suspension rod 701 and the fixing rod 702 enable the position sensor 703 to be accurately installed at a suitable position at the bottom of the top plate 6. The suspension rod 701 suspends the position sensor 703 below the top plate 6, and the fixing rod 702 further fixes the position sensor 703 to ensure its stable position and prevent it from shifting due to factors such as equipment vibration. This allows for accurate sensing of the turbine housing position. The position sensor 703 is electrically connected to the display controller 3. When the turbine housing reaches the predetermined detection position, the position sensor 703 can promptly send a position signal to the display controller 3. Based on this signal, the display controller 3 can accurately control the subsequent activation of the automatic fixing mechanism 5 and the hardness detection structure 8, thereby achieving automation and precise control of the detection process.

[0038] Specifically, such as Figure 4 As shown, the hardness testing structure 8 includes an electric telescopic rod 801 bolted to the top of the top plate 6. The telescopic end of the electric telescopic rod 801 passes through the top of the top plate 6, and the electric telescopic rod 801 is electrically connected to the display controller 3.

[0039] Specifically, such as Figure 4 As shown, the telescopic end of the electric telescopic pole 801 is bolted with a bearing plate 802, and a hardness detector 803 is provided at the bottom of the bearing plate 802. The hardness detector 803 is electrically connected to the display controller 3.

[0040] In this embodiment: the electric telescopic rod 801 is electrically connected to the display controller 3. The display controller 3 can precisely control the extension and retraction of the electric telescopic rod 801. During testing, the electric telescopic rod 801 can accurately adjust the height of the hardness detector 803 as needed, so that it can make good contact with the turbine housing surface, ensuring the accuracy of the test. The hardness detector 803 set at the bottom of the support plate 802 can perform hardness testing on the turbine housing. The hardness detector 803 is electrically connected to the display controller 3, and the test data can be transmitted to the display controller 3 in real time. The display controller 3 can process and analyze the data, determine whether the hardness of the turbine housing meets the requirements, and record and store the test data for convenient subsequent query and statistics.

[0041] Working Principle: During the use of this hardness testing device, the servo motor 201 is first started by the display controller 3. Since the servo motor 201 is electrically connected to the display controller 3, the display controller 3 can set the speed and direction of rotation of the servo motor 201 according to preset parameters. The output end of the servo motor 201 drives the main shaft 202 to rotate. The main shaft 202 is rotatably connected to the right side of the frame 1. At the same time, the secondary shaft 203 on the rear side of the frame 1 also rotates with the rotation of the conveyor belt 204. Because the secondary shaft 203 and the outer side of the main shaft 202 are fitted with the conveyor belt 204, the conveyor belt 204 starts to run under the drive of the main shaft 202 and the secondary shaft 203, moving the turbine housing placed on the conveyor belt 204 towards the test. Position conveying: When the turbine housing moves with the conveyor belt 204, the position sensing structure 7 located at the bottom of the top plate 6 starts to work. The position sensor 703 in the position sensing structure 7 is stably installed at a suitable position at the bottom of the top plate 6 through the suspension rod 701 and the fixing rod 702. When the turbine housing reaches the predetermined detection position, the position sensor 703 can sense it in time and send the position signal to the display controller 3. After receiving the position signal, the display controller 3 immediately controls the servo motor 201 to stop and the electric push rod 501 to start. The telescopic end of the electric push rod 501 passes through the outside of the bracket 4 and is bolted to the fixing plate 502. The pressure block 503 on the inner side of the fixing plate 502 moves towards the turbine housing with the telescopic movement of the electric push rod 501. The vacuum anti-slip pad 505 on the inner side of the turbine housing first contacts the turbine housing, providing initial fixation. As the electric push rod 501 continues to push, the pressure block 503 applies clamping force to the turbine housing. The distance sensor 504 embedded in the inner side of the pressure block 503 monitors the distance to the turbine housing in real time. When the preset clamping distance is reached, the distance sensor 504 sends a signal to the display controller 3. The display controller 3 controls the electric push rod 501 to stop extending, thereby achieving precise fixation of the turbine housing. Then, after the turbine housing is fixed, the display controller 3 controls the electric telescopic rod 801 in the hardness detection structure 8 to start. The telescopic end of the electric telescopic rod 801 passes through the top of the top plate 6 and is bolted to the bearing plate 802. The hardness detection at the bottom of the bearing plate 802... As the electric telescopic rod 801 extends and retracts, the hardness detector 803 moves downward until it contacts the surface of the turbine housing. The hardness detector 803 then begins to test the hardness of the turbine housing. The hardness detector 803 transmits the detected data to the display controller 3 in real time. The display controller 3 processes and analyzes the data to determine whether the hardness of the turbine housing meets the requirements. After completing the test of one turbine housing, the display controller 3 first controls the electric push rod 501 to retract, releasing the turbine housing. At the same time, the display controller 3 controls the servo motor 201 to continue running, transporting the next turbine housing to the test position. Then, the above process of turbine housing positioning, fixing, and hardness testing is repeated, thereby realizing the automation and batch testing of turbine housing hardness.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hardness testing device for use in machining a turbocharger turbine housing, comprising a frame (1), characterized in that: The inside of the frame (1) is provided with a conveying assembly (2), the left side of the frame (1) is provided with a display controller (3), both sides of the frame (1) are hinged with supports (4), the inside of the support (4) is provided with an automatic fixing mechanism (5), the top of the support (4) is hinged with a top plate (6), the bottom of the top plate (6) is provided with a position sensing structure (7), the middle of the bottom of the top plate (6) is provided with a hardness detection structure (8). The automatic fixing mechanism (5) comprises an electric push rod (501) hinged to the outside of the support (4), the electric push rod (501) is electrically connected with the display controller (3), the telescopic end of the electric push rod (501) penetrates the outside of the support (4), the telescopic end of the electric push rod (501) is hinged with a fixed plate (502), the inside of the fixed plate (502) is hinged with a pressing block (503), the inside of the pressing block (503) is embedded with a distance sensor (504), the inside of the pressing block (503) is bonded with a vacuum anti-skid clamp pad (505).

2. A hardness testing device for use in machining a turbocharger turbine housing according to claim 1, characterized in that: The conveying assembly (2) comprises a servo motor (201) hinged to the left side of the frame (1), the output end of the servo motor (201) penetrates the left side of the frame (1), and the servo motor (201) is electrically connected with the display controller (3).

3. A hardness testing device for use in machining a turbocharger turbine housing according to claim 2, characterized in that: The output end of the servo motor (201) is hinged with a main shaft (202), and the right side of the main shaft (202) is rotatably connected to the right side inside the frame (1).

4. A hardness testing device for use in machining a turbocharger turbine housing according to claim 3, characterized in that: The rear side inside the frame (1) is rotatably connected with a secondary shaft (203), and the outer sides of the secondary shaft (203) and the main shaft (202) are sleeved with a conveying belt (204).

5. A hardness testing device for turbocharger turbine housing machining according to claim 1, characterized in that: The position sensing structure (7) comprises a suspension rod (701) hinged to the bottom of the top plate (6), and the bottom of the suspension rod (701) is fixedly connected with a fixed rod (702).

6. A hardness testing device for use in machining a turbocharger turbine housing according to claim 5, characterized in that: The bottom of the fixed rod (702) is hinged with a position sensor (703), and the position sensor (703) is electrically connected with the display controller (3).

7. A hardness testing device for turbocharger turbine housing machining according to claim 1, characterized in that: The hardness detection structure (8) comprises an electric telescopic rod (801) hinged to the top of the top plate (6), the telescopic end of the electric telescopic rod (801) penetrates the top of the top plate (6), and the electric telescopic rod (801) is electrically connected with the display controller (3).

8. A hardness testing device for use in machining a turbocharger turbine housing according to claim 7, characterized in that: The telescopic end of the electric telescopic rod (801) is hinged with a bearing plate (802), the bottom of the bearing plate (802) is provided with a hardness detector (803), and the hardness detector (803) is electrically connected with the display controller (3).

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