Casting inspection device and casting inspection method

Abstract

The present application relates to the technical field of casting detection, and particularly relates to a casting detection device and a casting detection method, which is a casting detection device, comprising a support, a water tank is arranged on the support, a casting butt joint pressurizing mechanism is arranged in the water tank, the water tank is connected with an automatic water feeding and heating mechanism through a pipeline, a butt joint groove is arranged at the upper end of a butt joint seat, the casting is sealingly connected with the butt joint groove to form a gas charging pressure bearing space, a pressing plate is arranged above the butt joint groove, the pressing plate is driven by a pressing plate lifting component, a gas charging and discharging component comprises a fan and a control valve, the automatic water feeding and heating mechanism comprises a water pump and a heating component, a butt joint lifting mechanism is arranged on the butt joint seat, a casting detection method comprises the following steps: placing the casting between the butt joint seat and the pressing plate, pressing the casting by the pressing plate, tightly butt joining the casting and the butt joint seat, placing into the water tank, adding water and pressurizing, observing whether bubbles are generated on the surface of the casting, and taking out the casting, the present application has the advantages of ingenious structure, convenient detection, high precision, high speed, and suitability for casting detection of various models.

Description

Technical Field

[0001] This invention relates to the field of casting inspection technology, specifically to a casting inspection device and a casting inspection method. Background Technology

[0002] Existing castings, such as aluminum alloy castings, often exhibit various defects during the production process, such as porosity, shrinkage cavities, cracks, and sand holes. These defects directly or indirectly affect the quality, performance, and appearance of the product. Since these defects can ultimately lead to the entire product being defective or scrapped, this causes significant losses to enterprises. This problem has been difficult to solve in many fields, especially in the automotive industry. Product defects increase the failure rate of end-customer vehicles, ranging from minor component damage to complete vehicle burnout, posing a significant threat to driving safety. Currently, the inspection of aluminum castings in the market usually relies on manual inspection. Aluminum castings have a certain area and irregular structure, making inspection time-consuming, labor-intensive, and prone to false positives due to low inspection accuracy. For the inspection of batch castings, the labor intensity is high and the efficiency is low. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a casting inspection device and method that is ingeniously structured, convenient to use, highly accurate, fast, and applicable to the inspection of various types of castings.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A casting inspection device, characterized in that: it includes a support, a water tank is provided on the support, a casting docking and pressurizing mechanism is provided in the water tank, the water tank is connected to an automatic water inlet heating mechanism via a pipeline, so as to pressurize the casting through the casting docking and pressurizing mechanism, and supply water at a predetermined temperature to the water tank through the automatic water inlet heating mechanism. The casting docking and heating mechanism is placed in the water. If bubbles are generated, the casting has a defect; otherwise, it does not.

[0005] The casting docking pressurization mechanism of the present invention includes a docking seat, an air filling and venting component, a pressure plate, and a pressure plate lifting component. The docking seat is provided in the water tank, and a docking groove is provided at the upper end of the docking seat. The docking groove is connected to the air filling and venting component via a pipeline. A pressure plate is provided above the docking groove. The pressure plate is driven by the pressure plate lifting component to facilitate the following: during use, the casting is placed on the docking groove, and after being pressurized by the pressure plate, it is sealed to the docking groove. Air is then filled into the docking groove. After water is passed through the water tank, if air bubbles rise, the casting has a defect; otherwise, it does not.

[0006] The inflation / deflation component of this invention includes a blower and a control valve. A casting is provided on the docking groove, and the lower end face of the casting is sealed to the docking groove to form an inflation pressure space between the casting and the docking groove. An air inlet is provided on the inner wall of the docking groove, and the air inlet of the docking groove is connected to the air outlet of the blower via a pipeline. An exhaust hole is provided at the lower end of the docking groove, and an exhaust pipeline is fixed on the exhaust hole. A control valve is installed on the exhaust pipeline. Both the exhaust hole and the air inlet are connected to the inflation pressure space, so that during use, the gas and water in the inflation pressure space can be discharged first through the control valve, and then the control valve can be closed to pressurize the inflation pressure space.

[0007] The automatic water inlet heating mechanism of the present invention includes a water pump and a heating component. The water tank is provided with a water inlet. The water inlet of the water tank is connected to the drain outlet of the water pump via a water inlet pipe. The water inlet of the water pump is connected to a water source. The water inlet pipe of the water pump is provided with a heating component to facilitate heating the water source through the heating component and supplying water to the water tank through the water pump.

[0008] The pressure plate lifting component of the present invention includes a lifting support plate and a pressure plate driving cylinder. The lifting support plate is provided above the pressure plate. The lifting support plate is fixedly connected to the docking seat via a connecting rod. The pressure plate driving cylinder is provided on the lifting support plate and is fixedly connected to the lifting support plate. The telescopic rod of the pressure plate driving cylinder passes through the lifting support plate and is fixedly connected to the pressure plate, so as to drive the pressure plate to move closer to or away from the docking seat through the pressure plate driving cylinder.

[0009] The docking seat of the present invention is provided with a docking lifting mechanism, the docking lifting mechanism including a lifting drive cylinder. The docking seat is driven by a lifting drive cylinder, which is fixedly connected to the bracket so that the docking seat can be raised and lowered by the lifting drive cylinder to facilitate the loading and unloading of castings.

[0010] The docking seat of the present invention is provided with a guide lifting mechanism, which includes a pressure-bearing support plate, a guide rod, and a guide sleeve. A pressure-bearing support plate is provided above the docking seat, and a lifting support plate is provided at the lower end of the docking seat. The docking seat and the lifting support plate are detachably and fixedly connected. The pressure-bearing support plate is fixedly connected to the bracket. A guide rod is provided between the lifting plate and the pressure-bearing support plate. A guide sleeve is provided on the pressure-bearing support plate. The lower end of the guide rod is fixedly connected to the lifting plate, and the upper end passes through the guide sleeve and is slidably connected to the guide sleeve. The guide sleeve is fixedly connected to the pressure-bearing support plate. The lifting drive cylinder is fixedly connected to the pressure-bearing support plate. The telescopic rod of the lifting drive cylinder is fixedly connected to the guide rod via a lifting plate, so as to guide the lifting and lowering of the lifting plate through the guide rod, and thus guide the lifting and lowering of the docking seat.

[0011] The pressure plate of the present invention is provided with a pressure plate guide mechanism, which includes a pressure plate guide rod and a pressure plate sleeve. The lower end of the pressure plate guide rod is fixedly connected to the pressure plate, and the upper end passes through the pressure plate sleeve and is slidably connected to the pressure plate sleeve. The pressure plate sleeve is fixedly connected to the lifting support plate so as to guide the lifting of the pressure plate through the guide rod.

[0012] The mating seat of the present invention is provided with a positioning pin, and the casting is provided with a limiting hole on its outer periphery. The limiting hole cooperates with the positioning pin to quickly position the casting through the positioning pin.

[0013] The mating seat of the present invention has bolt holes spaced apart on its outer periphery. The mating seat is detachably and fixedly connected to the lifting support plate by bolts and nuts, so as to facilitate the replacement of the mating seat according to the structure of the casting.

[0014] The casting of the present invention includes a frame with spaced strip grooves on the frame. A limiting platform extends outward from the outer periphery of the frame to form a limiting hole. The limiting platform is fixedly connected to the frame. An air-filled space is formed between adjacent strip grooves. A positioning hole is provided on the docking seat. The casting is placed on the docking seat, the strip grooves enter the docking grooves, the limiting platform abuts against the docking seat, and a pin passes through the limiting hole and enters the positioning hole to position and fix the casting and the docking seat. The casting can be easily positioned by the limiting platform and the pin, and the casting and the docking seat are tightly connected by the pressure plate.

[0015] The casting of the present invention includes a frame with spaced strip grooves inside the frame. A limiting platform extends outward from the outer periphery of the frame and is fixedly connected to the frame. A limiting hole is provided on the limiting platform. An air-filled space is formed between adjacent strip grooves and between the strip grooves and the frame. A positioning hole is provided on the docking seat. The casting rests on the docking seat, the frame of the casting mates with the docking grooves, the limiting platform abuts against the docking seat, and a pin passes through the limiting hole and enters the positioning hole to position and fix the casting and the docking seat. The casting is conveniently positioned by the limiting platform and the pin, and the casting and the docking seat are tightly connected by a pressure plate.

[0016] The casting of the present invention has an opening on one side of the frame, which is connected to the air filling space. A plug is provided on one side of the docking seat. The plug is squeezed and sealed with the opening. The plug is driven by a plug motor and is fixedly connected to the lifting plate. For castings with openings, the plug is used to block them and prevent air leakage through the opening.

[0017] The pressure plate of the present invention is provided with a left pressure block and a right pressure block at its lower end. The left pressure block and the right pressure block are arranged at intervals. The left pressure block and the right pressure block are respectively fixedly connected to the pressure plate via support rods, so as to press the casting through the left pressure block and the right pressure block.

[0018] The bracket of the present invention is equipped with a control system and a display screen. The display screen, the pressure plate drive cylinder, and the lifting drive cylinder are respectively connected to the control system so as to realize the automatic control of the pressure plate drive cylinder and the lifting drive cylinder through the control system, and to display and facilitate the operation of the operator through the display screen.

[0019] The present invention provides a camera above the docking seat, the camera being positioned towards the docking groove, the camera being fixed on a pressure-bearing support plate or a lifting plate, and the camera and the display screen being connected to the control system respectively, so as to record the casting inspection status through the camera for convenient subsequent verification.

[0020] The bracket of the present invention is equipped with a photoelectric sensor, which is connected to the control system and fixedly connected to the bracket. The sensing end of the photoelectric sensor is set towards the docking seat so as to sense whether the docking seat has descended into place.

[0021] The bracket of the present invention is provided with a water tank, the water inlet pipe of the water pump is connected to the water tank, the heating component is a heating tube, the heating tube is placed inside the water tank and fixedly connected to the inner wall of the water tank, and the heating tube is connected to the control system so as to heat the water in the water tank through the heating tube.

[0022] The water tank of the present invention is fixedly equipped with a temperature sensor and a liquid level sensor, which are respectively connected to the control system. An overflow hole is provided at the upper end of the inner wall of the water tank so as to detect the temperature of the water in the water tank by the temperature sensor and to know the water level in the water tank by the liquid level sensor. When there is too much water in the water tank, it flows out through the overflow hole. A method for inspecting castings, characterized by comprising the following steps: Step 1: Place the casting on the docking seat, with the lower end of the casting engaging with the docking groove of the docking seat. The control system activates the pressure plate lifting component, and the pressure plate moves downward, pressing the casting down to create a sealed, air-filled space between the lower end of the casting and the docking groove. Step 2: The control system starts the docking lifting mechanism, which drives the docking seat, casting and pressure plate to move downwards and enter the water tank; Step 3: The control system starts the automatic water inlet heating mechanism. The control system monitors the water tank temperature through the temperature sensor and the water level height in the water tank through the liquid level sensor. When the water tank temperature reaches the preset value, the control system turns off the heating component in the automatic water inlet heating mechanism. When the water tank level reaches the preset height, the water supply stops. Step 4: The control system starts the inflation and deflation components, which inflate the sealed inflation space. Observe whether bubbles are generated on the surface of the casting. Step 5: After observation, the control system starts the inflation and deflation components, which will vent the sealed inflation space. After venting, the control system starts the docking lifting mechanism, which drives the docking seat, casting and pressure plate to move upward away from the water tank. The control system starts the pressure plate lifting component, the pressure plate rises and the casting is taken out. Step Six: Repeat steps one through five until all castings to be inspected have been inspected.

[0023] Due to the above-mentioned structure, this invention has the advantages of ingenious structure, convenient detection, high precision, fast speed, and applicability to the detection of various types of castings. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the present invention from one angle.

[0025] Figure 2 This is a structural schematic diagram of the present invention from another perspective.

[0026] Figure 3 This is the front view of the present invention.

[0027] Figure 4 This is an enlarged view of the water tank and casting docking and pressurizing mechanism in this invention.

[0028] Figure 5 This is an enlarged schematic diagram of the pressure plate lifting component and the docking lifting mechanism in this invention from one angle.

[0029] Figure 6 This is an enlarged schematic diagram of the pressure plate lifting component and the docking lifting mechanism in this invention from another angle.

[0030] Figure 7 This is an enlarged schematic diagram of the water tank in this invention.

[0031] Figure 8 This is a schematic diagram of a structure of the docking seat and casting in this invention.

[0032] Figure 9 This is the present invention. Figure 8 Enlarged schematic diagram of the center connector.

[0033] Figure 10 This is the present invention. Figure 8 An enlarged schematic diagram of a casting from one angle.

[0034] Figure 11 This is the present invention. Figure 8 An enlarged view of the casting from another angle.

[0035] Figure 12 Another structural schematic diagram of the mating seat and casting in this invention.

[0036] Figure 13 This is the present invention. Figure 12 Enlarged schematic diagram of the center connector.

[0037] Figure 14 This is the present invention. Figure 12 An enlarged schematic diagram of a casting from one angle.

[0038] Figure 15 This is the present invention. Figure 12 An enlarged view of the casting from another angle.

[0039] Reference numerals: 1. Bracket; 2. Water tank; 3. Casting docking and pressurizing mechanism; 4. Docking seat; 5. Automatic water inlet heating mechanism; 6. Water pump; 7. Docking groove; 8. Casting; 9. Air inlet; 10. Discharge hole; 11. Pressure plate; 12. Pressure plate lifting component; 13. Lifting support plate; 14. Pressure plate drive cylinder; 15. Connecting rod; 16. Docking lifting mechanism; 17. Lifting drive cylinder; 18. Guide lifting mechanism; 19. Pressure bearing support plate; 20. Guide rod; 21. Guide sleeve; 22. Lifting pallet; 23. Lifting plate; 24. Pressure plate guide mechanism; 25. Pressure plate guide rod; 26. Pressure plate sleeve; 27. Positioning pin; 28. Bolt hole; 29. ​​Frame; 30. Strip groove; 31. Limiting platform; 32. Limiting hole; 33. Inflation space; 34. Positioning hole; 35. Opening; 36. Plug; 37. Plug motor; 38. Left pressure block; 39. Right pressure block; 40. Support rod; 41. Photoelectric sensor; 42. Water tank. Detailed Implementation

[0040] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0041] As attached Figure 1-15 A casting inspection device, characterized in that: it includes a support 1, a water tank 2 on the support 1, a casting docking and pressurizing mechanism 3 inside the water tank 2, and the water tank 2 is connected to an automatic water inlet heating mechanism 5 via a pipeline, so that the casting is pressurized by the casting docking and pressurizing mechanism 3, and water at a predetermined temperature is supplied to the water tank by the automatic water inlet heating mechanism. The casting docking and heating mechanism is placed in the water. If bubbles are generated, the casting has a defect; otherwise, it does not.

[0042] As attached Figure 4 The casting docking and pressurizing mechanism 3 of the present invention includes a docking seat 4, an air filling and venting component, a pressure plate 11, and a pressure plate lifting component 12. The docking seat 4 is provided in the water tank 2. The docking seat 4 has a docking groove 7 at its upper end. The docking groove 7 is connected to the air filling and venting component via a pipeline. The pressure plate 11 is provided above the docking groove 7. The pressure plate 11 is driven by the pressure plate lifting component 12 so that when in use, the casting is placed on the docking groove, and after being pressurized by the pressure plate, it is sealed to the docking groove. Air is filled into the docking groove. After water is passed through the water tank, if air bubbles rise, the casting has a defect; otherwise, it does not.

[0043] The inflation / deflation component of this invention includes a blower and a control valve. A casting 8 is provided on the docking groove 7. The lower end face of the casting 8 is sealed to the docking groove 7, forming an inflation pressure space between the casting 8 and the docking groove 7. An air inlet 9 is provided on the inner wall of the docking groove 7. The air inlet 9 of the docking groove 7 is connected to the air outlet of the blower via a pipeline. An exhaust hole 10 is provided at the lower end of the docking groove 7. An exhaust pipeline is fixed on the exhaust hole 10. A control valve is installed on the exhaust pipeline. Both the exhaust hole 10 and the air inlet 9 are connected to the inflation pressure space, so that during use, the gas and water in the inflation pressure space can be discharged first through the control valve, and then the control valve can be closed to pressurize the inflation pressure space.

[0044] The automatic water inlet heating mechanism 5 of the present invention includes a water pump and a heating component. The water tank 2 is provided with a water inlet and a water outlet. The water inlet of the water tank 2 is connected to the water outlet of the water pump via a water inlet pipe. The water outlet of the water tank is fixedly provided with a water outlet pipe and a control valve is fixedly provided on the water outlet pipe. The water inlet of the water pump is connected to a water source. The water inlet pipe of the water pump is provided with a heating component to facilitate heating the water source through the heating component and supplying water to the water tank through the water pump.

[0045] As attached Figure 5-6 The pressure plate lifting component 12 of the present invention includes a lifting support plate 13 and a pressure plate driving cylinder 14. The lifting support plate 13 is provided above the pressure plate 11. The lifting support plate 13 is fixedly connected to the docking seat 4 via a connecting rod 15. The pressure plate driving cylinder 14 is provided on the lifting support plate 13. The pressure plate driving cylinder 14 is fixedly connected to the lifting support plate 13. The telescopic rod of the pressure plate driving cylinder 14 passes through the lifting support plate 13 and is fixedly connected to the pressure plate 11, so as to drive the pressure plate to move closer to or away from the docking seat through the pressure plate driving cylinder.

[0046] The docking seat 4 of the present invention is provided with a docking lifting mechanism 16, which includes a lifting drive cylinder 17. The docking seat 4 is driven by the lifting drive cylinder 17, which is fixedly connected to the bracket 1 so as to drive the docking seat to lift and lower through the lifting drive cylinder, which facilitates the picking and placing of castings.

[0047] The docking seat 4 of the present invention is provided with a guide lifting mechanism 18, which includes a pressure-bearing support plate 19, a guide rod 20, and a guide sleeve 21. The pressure-bearing support plate 19 is provided above the docking seat 4, and a lifting support plate 22 is provided at the lower end of the docking seat 4. The docking seat 4 and the lifting support plate 22 are detachably and fixedly connected. The pressure-bearing support plate 19 is fixedly connected to the bracket 1. A guide rod 20 is provided between the lifting support plate 22 and the pressure-bearing support plate 19. A guide sleeve 21 is provided on the pressure-bearing support plate 19. The lower end of the guide rod 20 is fixedly connected to the lifting support plate 22, and the upper end passes through the guide sleeve 21 and is slidably connected to the guide sleeve 21. The guide sleeve 21 is fixedly connected to the pressure-bearing support plate 19. The lifting drive cylinder 17 is fixedly connected to the pressure-bearing support plate 19. The telescopic rod of the lifting drive cylinder 17 is fixedly connected to the guide rod 20 via a lifting plate 23, so as to guide the lifting and lowering of the lifting support plate through the guide rod, thereby guiding the lifting and lowering of the docking seat.

[0048] The pressure plate 11 of the present invention is provided with a pressure plate guide mechanism 24. The pressure plate guide mechanism 24 includes a pressure plate guide rod 25 and a pressure plate sleeve 26. The lower end of the pressure plate guide rod 25 is fixedly connected to the pressure plate 11, and the upper end passes through the pressure plate sleeve 26 and is slidably connected to the pressure plate sleeve 26. The pressure plate sleeve 26 is fixedly connected to the lifting support plate 13 so as to guide the lifting and lowering of the pressure plate through the guide rod.

[0049] As attached Figure 12-15 The docking seat 4 of the present invention is provided with a positioning pin 27, and the casting 8 is provided with a limiting hole on its outer periphery. The limiting hole cooperates with the positioning pin 27 to quickly position the casting through the positioning pin.

[0050] As attached Figure 5 The docking seat 4 of the present invention is provided with bolt holes 28 at intervals on its outer periphery. The docking seat 4 is detachably and fixedly connected to the lifting support plate 22 by bolts and nuts, so as to facilitate the replacement of the docking seat according to the structure of the casting.

[0051] As attached Figure 12-15 The casting 8 of the present invention includes a frame 29, on which strip grooves 30 are spaced apart. A limiting platform 31 is formed by extending outward from the outer periphery of the frame 29. A limiting hole 32 is provided on the limiting platform 31. The limiting platform 31 is fixedly connected to the frame 29. An air-filled space 33 is formed between adjacent strip grooves 30. A positioning hole 34 is provided on the docking seat 4. The casting 8 is placed on the docking seat 4, the strip grooves 30 enter the docking groove 7, the limiting platform 31 abuts against the docking seat 4, and the pin passes through the limiting hole 32 and enters the positioning hole 34 to position and fix the casting 8 and the docking seat 4. The casting is conveniently positioned by the limiting platform and the pin, and the casting and the docking seat are tightly connected by the pressure plate.

[0052] As attached Figure 8-11The casting 8 of the present invention includes a frame 29, in which strip grooves 30 are spaced apart. A limiting platform 31 extends outward from the outer periphery of the frame 29 and is fixedly connected to the frame 29. A limiting hole 32 is provided on the limiting platform 31. An air-filled space 33 is formed between the adjacent strip grooves 30 and the strip grooves 30 and the frame 29. A positioning hole 34 is provided on the docking seat 4. The casting 8 is placed on the docking seat 4. The frame 29 of the casting 8 is docked with the docking groove 7. The limiting platform 31 abuts against the docking seat 4. A pin passes through the limiting hole 32 and enters the positioning hole 34 to position and fix the casting 8 and the docking seat 4. The casting is conveniently positioned by the limiting platform and the pin. The casting and the docking seat are tightly connected by pressing with a pressure plate.

[0053] The casting 8 of the present invention has an opening 35 on one side of the frame 29, which is connected to the air filling space 33. The docking seat 4 has a plug 36 on one side, which is connected to the opening 35 by compression sealing. The plug 36 is driven by a plug motor 37, which is fixedly connected to the lifting support plate 22. For castings with openings, the plug can be used to block them and prevent air leakage through the opening.

[0054] The pressure plate 11 of the present invention is provided with a left pressure block 38 and a right pressure block 39 at its lower end. The left pressure block 38 and the right pressure block 39 are arranged at intervals. The left pressure block 38 and the right pressure block 39 are respectively fixedly connected to the pressure plate 11 via support rods 40, so as to press the casting through the left pressure block and the right pressure block.

[0055] The bracket 1 of the present invention is equipped with a control system and a display screen. The display screen, the pressure plate drive cylinder 14, and the lifting drive cylinder 17 are respectively connected to the control system so as to realize the automatic control of the pressure plate drive cylinder and the lifting drive cylinder through the control system, and to display and facilitate the operation of the operator through the display screen.

[0056] The present invention provides a camera above the docking seat 4, which is positioned facing the docking groove 7. The camera is fixed on the pressure support plate 19 or the lifting plate 23. The camera and the display screen are respectively connected to the control system to record the casting inspection status through the camera, which is convenient for subsequent verification.

[0057] The bracket 1 of the present invention is provided with a photoelectric sensor 41, which is connected to the control system and fixedly connected to the bracket 1. The sensing end of the photoelectric sensor 41 is set towards the docking seat 4 so as to sense whether the docking seat has descended into place.

[0058] The bracket 1 of the present invention is provided with a water tank 42, the water inlet pipe of the water pump 6 is connected to the water tank 42, the heating component is a heating tube, the heating tube is placed inside the water tank 42 and fixedly connected to the inner wall of the water tank 42, and the heating tube is connected to the control system to heat the water in the water tank through the heating tube.

[0059] The water tank 2 of the present invention is fixedly equipped with a temperature sensor and a liquid level sensor. The temperature sensor and the liquid level sensor are respectively connected to the control system. An overflow hole is provided at the upper end of the inner wall of the water tank 2 so as to detect the temperature of the water in the water tank by the temperature sensor and to know the water level in the water tank by the liquid level sensor. When there is too much water in the water tank, it flows out through the overflow hole. A method for inspecting castings, characterized by the following steps: Step 1: Place the casting 8 on the docking seat 4. The lower end of the casting 8 mates with the docking groove 7 of the docking seat 4. A sealing ring is fixed on the docking groove 7. The control system starts the pressure plate lifting component 12. The pressure plate 11, the left pressure block 38 and the right pressure block 39 move downward. The left pressure block 38 and the right pressure block 39 press down on both sides of the casting 8 at the same time, so that the operator can observe whether there are air bubbles overflowing from the middle of the casting 8. A sealed air-filled space 33 is formed between the lower end of the casting 8 and the docking groove 7. Step 2: The control system starts the docking lifting mechanism 16. The docking lifting mechanism 16 drives the docking seat 4, casting 8, left pressure block 38 and right pressure block 39 to move downward and enter the water tank 2. The photoelectric sensor 41 monitors whether the descent is in place. When the descent is in place, the docking lifting mechanism 16 stops. Step 3: The control system starts the automatic water inlet heating mechanism 5. The control system monitors the temperature of the water tank 2 through the temperature sensor. The heating temperature is between 80-90℃. The control system monitors the water level in the water tank 2 through the liquid level sensor. When the temperature in the water tank 2 reaches the preset value, the control system turns off the heating tube. When the water level in the water tank 2 reaches the preset height, the water supply stops. Step 4: The control system starts the blower, which inflates the sealed inflation space 33 with an inflation pressure of 0.8-1MPa. While inflating, the operator observes the surface of the casting 8 for 60-120 seconds to see if any bubbles are generated. Step 5: After observation, the control system opens the control valve on the discharge pipe, or the control valve on the discharge pipe is opened manually to discharge the gas in the air-filling space 33. If the casting 7 is free of defects, water may enter the air-filling space 33 through defects on the surface of the casting, such as sand holes or cracks. It can be discharged through the discharge pipe. After discharge, the control system starts the docking lifting mechanism 16. The docking lifting mechanism 16 drives the docking seat 4, the casting 8 and the pressure plate 11 to move upward away from the water tank 2. The control system starts the pressure plate lifting component 12. The pressure plate 11 rises and the operator takes out the casting 8 with tools. Step Six: Repeat steps one through five until all castings 8 to be inspected have been inspected.

[0060] As attached Figure 1-15 Initial state: The docking seat is away from the water tank, positioned above the water tank, and the pressure plate is positioned above the docking seat for easy placement of the casting. In step four of this invention, when inflation begins, the control valve on the discharge pipe can be opened to discharge any residual gas or moisture in the inflation space. Then, the control valve is closed, and inflation into the inflation space continues. In this invention, the casting is an aluminum casting, which can be configured into different shapes, i.e., different models, according to requirements. The docking seat is configured to cooperate with it. This embodiment provides two structures for aluminum castings, one of which is shown in the attached figure. Figure 10-11 The structure of the corresponding docking seat is shown in the attached figure. Figure 9 Another type of aluminum casting is shown in the attached image. Figure 14-15 The structure of the corresponding docking seat is shown in the attached figure. Figure 13 The structure of the aluminum casting can be set according to requirements. The mating seat can be matched with it to form a sealed, air-filled, and pressure-bearing space. In this invention, the control system, such as a PLC control system, is used to test the casting in a high-temperature and high-pressure environment. The test accuracy is high and the speed is fast. Multiple casting test devices can be set on the bracket to realize the simultaneous test of multiple castings, further improving the test efficiency. In addition, the mating seat and the lifting plate are detachably fixedly connected. Different models of castings can be matched with different mating seats. Only the mating seat needs to be replaced to be applicable to the test of different models of castings.

[0061] Due to the above-mentioned structure, this invention has the advantages of ingenious structure, convenient detection, high precision, fast speed, and applicability to the detection of various types of castings.

Claims

1. A casting inspection device, characterized in that: Includes a bracket (1), on which a water tank (2) is provided, and a casting docking and pressurizing mechanism (3) is provided in the water tank (2), and the water tank (2) is connected to an automatic water inlet heating mechanism (5) via a pipeline.

2. The casting inspection device according to claim 1, characterized in that: The casting docking and pressurizing mechanism (3) includes a docking seat (4), an air filling and venting component, a pressure plate (11), and a pressure plate lifting component (12). The water tank (2) is provided with a docking seat (4). The upper end of the docking seat (4) is provided with a docking groove (7). The docking groove (7) is connected to the air filling and venting component via a pipeline. The pressure plate (11) is provided above the docking groove (7). The pressure plate (11) is driven by the pressure plate lifting component (12).

3. The casting inspection device according to claim 2, characterized in that: The inflation / deflation component includes a fan and a control valve. A casting (8) is provided on the docking groove (7). The casting (8) is sealed to the docking groove (7) to form an inflation pressure space. An air inlet (9) is provided on the inner wall of the docking groove (7). The air inlet (9) of the docking groove (7) is connected to the air outlet of the fan via a pipeline. An exhaust hole (10) is provided at the lower end of the docking groove (7). An exhaust pipeline is fixed on the exhaust hole (10). A control valve is installed on the exhaust pipeline. Both the exhaust hole (10) and the air inlet (9) are connected to the inflation pressure space.

4. The casting inspection device according to claim 3, characterized in that: The docking seat (4) is provided with a positioning pin (27), and the casting (8) is provided with a limiting hole on its outer periphery. The limiting hole cooperates with the positioning pin (27).

5. A casting inspection device according to claim 1, 2, 3, or 4, characterized in that: The docking seat (4) is provided with a docking lifting mechanism (16), which includes a lifting drive cylinder (17). The docking seat (4) is driven by the lifting drive cylinder (17), and the lifting drive cylinder (17) is fixedly connected to the bracket (1).

6. The casting inspection device according to claim 5, characterized in that: The docking seat (4) is provided with a guide lifting mechanism (18), which includes a pressure-bearing support plate (19), a guide rod (20), and a guide sleeve (21). The pressure-bearing support plate (19) is provided above the docking seat (4), and a lifting support plate (22) is provided at the lower end of the docking seat (4). The docking seat (4) and the lifting support plate (22) are detachably and fixedly connected. The pressure-bearing support plate (19) is fixedly connected to the bracket (1). The lifting support plate (22) and the pressure-bearing support plate (19) are... A guide rod (20) is provided between them. A guide sleeve (21) is provided on the pressure support plate (19). The lower end of the guide rod (20) is fixedly connected to the lifting support plate (22), and the upper end passes through the guide sleeve (21) and is slidably connected to the guide sleeve (21). The guide sleeve (21) is fixedly connected to the pressure support plate (19). The lifting drive cylinder (17) is fixedly connected to the pressure support plate (19). The telescopic rod of the lifting drive cylinder (17) is fixedly connected to the guide rod (20) via the lifting plate (23).

7. A casting inspection device according to claim 6, characterized in that: The docking seat (4) is provided with bolt holes (28) at intervals on its outer periphery. The docking seat (4) is detachably and fixedly connected to the lifting plate (22) by bolts and nuts.

8. A casting inspection device according to claim 2, 3, or 4, characterized in that: The lower end of the pressure plate (11) is provided with a left pressure block (38) and a right pressure block (39). The left pressure block (38) and the right pressure block (39) are spaced apart. The left pressure block (38) and the right pressure block (39) are fixedly connected to the pressure plate (11) via support rods (40).

9. A casting inspection device according to claim 2, 3, or 4, characterized in that: The bracket (1) is equipped with a control system and a display screen, the display screen is connected to the control system, a camera is provided above the docking seat (4), the camera is set facing the docking groove (7), and / or a photoelectric sensor (41) is provided on the bracket (1), the photoelectric sensor (41) is fixedly connected to the bracket (1), the sensing end of the photoelectric sensor (41) is set facing the docking seat (4), and / or a temperature sensor and a liquid level sensor are fixedly provided in the water tank (2), and an overflow hole is provided at the upper end of the inner wall of the water tank (2).

10. A casting inspection method based on any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Place the casting (8) on the docking seat (4) of the casting docking and pressurizing mechanism (3). The lower end of the casting (8) is engaged with the docking groove (7) of the docking seat (4). The control system starts the pressure plate lifting component (12) of the casting docking and pressurizing mechanism (3). The pressure plate (11) of the casting docking and pressurizing mechanism (3) moves downward and presses the casting (8) so that a sealed air-filled space (33) is formed between the lower end of the casting (8) and the docking groove (7). Step 2: The control system starts the docking lifting mechanism (16), which drives the docking seat (4), casting (8) and pressure plate (11) to move downward and enter the water tank (2); Step 3: The control system starts the automatic water inlet heating mechanism (5). The control system monitors the temperature of the water tank (2) through the temperature sensor and monitors the water level in the water tank (2) through the liquid level sensor. When the temperature in the water tank (2) reaches the preset value, the control system shuts off the heating component in the automatic water inlet heating mechanism (5). When the water level in the water tank (2) reaches the preset height, the water supply stops. Step 4: The control system starts the filling and venting components of the casting docking pressurization mechanism (3). The filling and venting components fill the sealed filling space (33) with air and observe whether there are bubbles on the surface of the casting (8). Step 5: After observation, the control system starts the inflation and deflation components. The inflation and deflation components will deflate the sealed inflation space (33). After deflation, the control system starts the docking lifting mechanism (16). The docking lifting mechanism (16) drives the docking seat (4), casting (8) and pressure plate (11) to move upward away from the water tank (2). The control system starts the pressure plate lifting component (12). The pressure plate (11) rises and takes out the casting (8). Step 6: Repeat steps 1 to 5 until all castings (8) to be inspected have been inspected.

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