Engine cylinder block machining leakage test automation mechanism

Abstract

The utility model discloses an automatic leakage testing mechanism for engine cylinder block processing. The automatic leakage testing mechanism comprises a transmission mechanism and a leakage testing mechanism. The leakage test mechanism comprises an oil-water detection tool, a cavity detection tool and a gas leakage observation device; the transmission mechanism comprises a first clamping device, a second clamping device and a third clamping device, the first clamping device clamps an undetected cylinder body and places the undetected cylinder body on the oil-water detection tool, and the second clamping device is used for transferring the detected cylinder body on the oil-water detection tool to the cavity detection tool; the third clamping device is used for taking away the cylinder body detected on the cavity detection tool; the oil-water detection tool and the cavity detection tool work synchronously, and the first clamping device, the second clamping device and the third clamping device work synchronously. According to the engine cylinder block machining leakage test automation mechanism, the requirements for improving efficiency and accuracy are fully considered in the structural design and the operation process, and powerful guarantee can be provided for the production quality of the engine cylinder block.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine processing technical field, concretely is a kind of engine cylinder block processing leak hunting automation mechanism. BACKGROUND

[0002] Engine cylinder block is a key component in internal combustion engine, it forms the main structure of engine, including cylinder, cooling liquid channel and oil channel etc.The main function of cylinder block is to accommodate the piston in cylinder, fuel and air mixture, and withstand high pressure and high temperature when working.Engine cylinder block needs to ensure that gas or cooling liquid does not leak when working, therefore, engine cylinder block needs to be leak hunting tested when processing, leak hunting test can help find the tiny crack or defect of cylinder block, ensure the sealing between cylinder and piston.Through testing, potential manufacturing defects can be found in time, reduce the failure rate in later operation, improve the reliability of engine.

[0003] In prior art, when leak hunting test is carried out, product water channel, oil channel and cavity need to be leak hunted respectively when engine cylinder block is processed, usually two leak hunting equipment is needed: water channel, oil channel testing equipment and cavity testing equipment.The traditional leak hunting mode is to plug the holes on engine cylinder block with plug and then carry out leak hunting.But, in the traditional cylinder leak hunting detection process, workers need to frequently carry cylinder, and labor intensity is large, so there is the problem of low detection efficiency.

[0004] In the patent with publication number CN215524928U, an engine cylinder block leak hunting machine is disclosed, which solves the problem that in the existing cylinder air tightness inspection, each hole on the cylinder is plugged with several plugs, and then air tightness experiment is carried out.This structure has the advantage of good sealing effect.But, the detection tool of this structure is not suitable for assembly line detection, and when a large number of engine cylinder blocks need to be air tightness detected, there is the problem of low detection efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of engine cylinder block processing leak hunting automation mechanism to solve the following technical problems raised in background art:

[0006] In the traditional cylinder leak hunting detection process, workers need to frequently carry cylinder, and labor intensity is large, so there is the problem of low detection efficiency.

[0007] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0008] An automated leak testing mechanism for engine cylinder block machining includes a transmission mechanism and a leak testing mechanism. The leak testing mechanism includes an oil and water testing fixture, a cavity testing fixture, and a leak observation device. The oil and water testing fixture is used to seal and pressurize the oil and water passages of the cylinder block. The cavity testing fixture is used to test the cylinder block cavity. The leak observation device is used to observe the leak location of the cylinder block. The transmission mechanism includes a first clamping device, a second clamping device, and a third clamping device. The first clamping device clamps the untested cylinder block and places it on the oil and water testing fixture. The second clamping device is used to transfer the tested cylinder block from the oil and water testing fixture to the cavity testing fixture. The third clamping device is used for... Remove the cylinder block that has been inspected from the cavity inspection fixture; the oil and water inspection fixture works synchronously with the cavity inspection fixture, and the first clamping device, the second clamping device, and the third clamping device work synchronously; the transfer mechanism includes the first clamping device, the second clamping device, and the third clamping device. The first clamping device clamps the uninspected cylinder block and places it on the oil and water inspection fixture. The second clamping device is used to transfer the cylinder block that has been inspected from the oil and water inspection fixture to the cavity inspection fixture. The third clamping device is used to remove the cylinder block that has been inspected from the cavity inspection fixture; the oil and water inspection fixture works synchronously with the cavity inspection fixture, and the first clamping device, the second clamping device, and the third clamping device work synchronously.

[0009] Furthermore, a first track is provided above the oil-water testing fixture and the cavity testing fixture, and the first clamping device, the second clamping device and the third clamping device are all slidably connected to the first track;

[0010] The first clamping device, the second clamping device, and the third clamping device are connected together by a connecting rod. The first clamping device, the second clamping device, and the third clamping device have the same structure, each including a sealing plate, a connecting plate, a first lifting cylinder, a clamping cylinder, and a clamping claw. The first lifting cylinder is fixedly connected to the middle of the connecting plate, the sealing plate is fixedly connected to the telescopic rod of the first lifting cylinder, and the clamping cylinder is fixedly connected to the sealing plate. One end of the clamping claw is hinged to the telescopic rod of the clamping cylinder, and the middle of the clamping claw is hinged to the sealing plate.

[0011] A transverse push-pull cylinder is also provided on one side of the first track, and the telescopic rod of the transverse push-pull cylinder is connected to the connecting plate in the first clamping device.

[0012] Furthermore, the air leakage observation device includes a column, a water tank, a second track, rollers, and a second lifting cylinder; there are two water tanks, which are located below the oil-water detection fixture and the cavity detection fixture. The rollers are connected to the water tanks. The second track is fixed to the column, and the rollers are slidably connected to the second track. The second lifting cylinder is connected to the water tanks.

[0013] Further, the cylinder body of the engine has an interface one, an interface two, an interface three, an interface four, an interface five, an interface six, an interface seven, an interface eight, an interface nine, an interface ten, an interface eleven, an interface twelve, an interface thirteen, an interface fourteen and a water channel; wherein the interface one is communicated with the water channel, the interface five, the interface six and the interface seven are communicated with the cylinder cavity, the cylinder cavity is provided with notches on both sides, the interface two, the interface three, the interface four, the interface eight, the interface nine, the interface ten, the interface eleven, the interface twelve, the interface thirteen and the interface fourteen are communicated with the oil channel; the oil and water detection tool includes a support bottom plate one, a workpiece bottom plate one, a plugging head one, a plugging head two, a plugging head three, a plugging head four, a plugging head five, a plugging head six, a plugging head seven and a support rod; wherein the workpiece bottom plate one is connected in the middle of the support bottom plate one, the workpiece bottom plate one is provided with a sealed water tank, the sealed water tank is matched with the water channel on the cylinder body, one side of the workpiece bottom plate one is provided with an air inlet one, the air inlet one is communicated with the sealed water tank; the plugging head one, the plugging head two and the plugging head seven are arranged on both sides of the support bottom plate one, the plugging head one, the plugging head two and the plugging head seven are respectively connected with the air cylinder and controlled by the air cylinder, the plugging head one is aligned with the interface eleven, the plugging head two is aligned with the interface nine, and the plugging head seven is aligned with the interface eight; the plugging head three, the plugging head four, the plugging head five and the plugging head six are arranged on the front side of the support bottom plate one, the plugging head three, the plugging head four, the plugging head five and the plugging head six are respectively connected with the air cylinder and controlled by the air cylinder, the plugging head three is aligned with the interface four, the plugging head four is aligned with the interface three, the plugging head five is aligned with the interface two, and the plugging head six is aligned with the interface one; the support rod is arranged on the rear side of the support bottom plate one and connected with the air cylinder, and the support rod is controlled by the air cylinder; the plugging head two is connected with an oil path air inlet detection joint, and the air inlet one of the workpiece bottom plate one is connected with a water channel air inlet detection joint; the sealing plate on the first clamping device is aligned with the cylinder body on the workpiece bottom plate one, the sealing plate on the first clamping device is used for plugging the interface twelve and the interface thirteen, and the workpiece bottom plate one is used for sealing the water channel and the interface fourteen.

[0014] Furthermore, the cavity inspection fixture includes a second support base plate, a second workpiece base plate, a fixture filler, an upper sealing filler block, a first sealing plate, a second sealing plate, an eighth sealing head, a ninth sealing head, a tenth sealing head, an eleventh sealing head, a twelfth sealing head, a thirteenth sealing head, and a fourteenth sealing head; wherein, the second workpiece base plate is connected to the middle of the second support base plate, the upper sealing filler block is connected to the second workpiece base plate, the upper sealing filler block matches the cylinder bore of the cylinder block, and the second workpiece base plate is used to seal the bottom cylinder bore of the cylinder block; the fixture filler is connected to the bottom of the sealing plate of the second clamping device, the sealing plate of the second clamping device is used to seal the top of the engine cylinder block on the second workpiece base plate, and the fixture filler is used to seal the crankcase of the engine cylinder block; the first sealing plate and the second sealing plate are respectively arranged on both sides of the second support base plate, and the first sealing plate and the second sealing plate are respectively connected to the gas... The cylinder is controlled by the cylinder, and the sealing plate one and sealing plate two are aligned with the notch on the cylinder; sealing plate one is used to seal the right end face of the engine cylinder on the workpiece base plate two, and sealing plate two is used to seal the left notch of the engine cylinder on the workpiece base plate two; sealing head eight, sealing head nine, sealing head ten, sealing head eleven, sealing head twelve and sealing head thirteen are all set on the front side of the supporting base plate two, sealing head eight is aligned with interface four, sealing head nine is aligned with interface seven, sealing head ten is aligned with interface six, sealing head eleven is aligned with interface two, sealing head twelve is aligned with interface three, and sealing head thirteen is aligned with interface one; sealing head fourteen is set on one side of the supporting base plate two and connected to the cylinder, sealing head fourteen is controlled by the cylinder, sealing head fourteen is aligned with interface eight, and a cavity air intake detection connector is connected to sealing head ten.

[0015] Furthermore, a typewriter clamp is connected to the rear side of the support base plate, and the typewriter clamp is connected to and controlled by the impact cylinder.

[0016] Furthermore, the sealing heads 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 are all connected to the cylinder via connecting parts. The connecting parts include a sleeve, a connecting block, a movable rod, and a spring. One end of the connecting block is connected to the telescopic rod of the cylinder. The sleeve is fitted onto the outside of the connecting block. A movable cavity is provided on one side of the top of the connecting block. The bottom side of the movable rod is movably connected to the movable cavity. A spring is fitted on one side of the top of the movable rod. The top of the movable rod is connected to the sealing head.

[0017] Furthermore, limit rods are fixedly connected to both sides of the top of the sealing plate, and the limit rods are movably connected to the mounting plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In this invention, the first clamping device, the second clamping device, and the third clamping device can be activated simultaneously and operated in coordination. The clamping devices are designed to accurately align with the cylinder body, ensuring the stability of the workpiece during the inspection process and reducing the risk of missed inspections due to inaccurate positioning.

[0020] The oil-water testing fixture and the cavity testing fixture can work simultaneously to seal and apply pressure. By pressurizing the oil and water passages under simulated operating conditions, any potential leaks can be detected in a timely manner, allowing faults to be corrected before engine assembly.

[0021] The air leak detection device can quickly identify air leaks in the engine block, improving the speed of defect detection and making quality control more efficient.

[0022] In this invention, the overall design of all components enables the oil and water testing fixture, the cavity testing fixture, and the clamping device to work together efficiently, ensuring efficient testing of the engine block. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the oil-water testing fixture of this utility model;

[0025] Figure 3 This is a schematic diagram of the cavity inspection tooling structure of this utility model;

[0026] Figure 4 This is a front view of the engine block of this utility model;

[0027] Figure 5 This is a left view of the engine block of this utility model;

[0028] Figure 6 This is a right view of the engine block of this utility model;

[0029] Figure 7 This is a top view of the engine block of this utility model;

[0030] Figure 8 This is a bottom view of the engine block of this utility model;

[0031] Figure 9 This is a schematic diagram of the clamping claw of this utility model;

[0032] Figure 10 This is a schematic diagram of the connecting component of this utility model.

[0033] In the diagram, the markings are: 1-Horizontal push-pull cylinder, 2-Connecting plate, 3-First lifting cylinder, 4-Connecting rod, 5-Clamping cylinder, 6-Clamping claw, 7-Sealing plate, 8-Second track, 9-Roller, 10-Column, 11-Water tank, 12-Second lifting cylinder, 13-Support base plate one, 14-Support base plate two, 15-Support rod, 16-Support cylinder, 17-Sealing head one, 18-Sealing head two, 19-Sealing head three, 20-Sealing head four, 21-Sealing head five, 22-Sealing head six, 23-Sealing head seven, 24-Sealing water tank, 25-Workpiece base plate one, 26-Upper sealing filler block, 27-Sealing plate two, 28-Sealing head. Fourteen, 29-Plug head thirteen, 30-Plug head twelfth, 31-Plug head eleventh, 32-Plug head tenth, 33-Plug head nineth, 34-Plug head eightth, 35-Plug plate one, 36-Workpiece base plate two, 37-Interface three, 38-Interface sixth, 39-Interface seventh, 40-Interface fourth, 41-Interface one, 42-Interface two, 43-Interface fiveth, 44-Notch, 45-Interface eightth, 46-Interface tenth, 47-Interface nineth, 48-Interface eleventh, 49-Interface twelfth, 50-Interface thirteenth, 52-Waterway, 53-Interface fourteenth, 54-Spring, 55-Moving rod, 56-Connecting block, 57-Sleeve, 58-Moving cavity. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0035] Example:

[0036] An automated leak testing mechanism for engine cylinder block machining includes a transmission mechanism and a leak testing mechanism. The leak testing mechanism includes an oil and water testing fixture, a cavity testing fixture, and a leak observation device. The oil and water testing fixture is used to seal the cylinder block's oil passages, water channels 52, and the cavity, and to pressurize the oil passages and water channels 52. The cavity testing fixture is used to seal the cylinder block's oil passages, water channels 52, and the cavity, and to pressurize the cavity. The leak observation device is used to observe and check whether there is a leak in the cylinder block. The transmission mechanism includes a first clamping device, a second clamping device, and a third clamping device. The first clamping device clamps the untested cylinder block and places it on the oil and water testing fixture. The second clamping device is used to transfer the tested cylinder block from the oil and water testing fixture to the cavity testing fixture. The third clamping device is used to remove the tested cylinder block from the cavity testing fixture. The oil and water testing fixture and the cavity testing fixture work synchronously, as do the first, second, and third clamping devices.

[0037] The main function of the oil and water testing fixture is to seal the oil passages and water channels 52 of the engine block and apply pressure to detect potential leaks. By applying pressure, operating conditions can be simulated to check for possible weak points, which is crucial for ensuring the engine's operational reliability in actual use. The cavity testing fixture focuses on sealing and applying pressure to the cavities of the engine block, helping to further check the cavity's sealing performance. The integrity of the cavity directly affects the engine's performance and durability. The leak detection device is used to observe and check for leaks in the engine block in real time. Through visualization, the sealing condition of the engine block can be quickly determined, greatly improving testing efficiency and accuracy. The first clamping device is responsible for clamping the untested cylinder block and placing it on the oil and water testing fixture, ensuring that the cylinder block is not damaged when entering the testing process and is accurately and stably aligned with the fixture, reducing human error. The second clamping device is used to transfer the tested cylinder block from the oil and water testing fixture to the cavity testing fixture. The third clamping device removes the inspected cylinder block from the cavity inspection fixture, ensuring efficient use of space and preventing production processes from being hampered by backlog. Simultaneously, it prepares the cylinder block for subsequent processes. The oil and water inspection fixture works synchronously with the cavity inspection fixture, and the first, second, and third clamping devices also coordinate their operations. This structural design not only improves the overall efficiency of the production line but also effectively reduces the error rate. Therefore, this automated leak testing mechanism for engine cylinder blocks is designed with high efficiency and accuracy in mind, providing a crucial guarantee for improving the production quality of engine cylinder blocks.

[0038] In a preferred embodiment, a first track is provided above the oil-water detection fixture and the cavity detection fixture. A first clamping device, a second clamping device, and a third clamping device are all slidably connected to the first track. The first, second, and third clamping devices are connected together by a connecting rod 4. The first, second, and third clamping devices have the same structure, each including a sealing plate 7, a connecting plate 2, a first lifting cylinder 3, a clamping cylinder 5, and a clamping claw 6. The first lifting cylinder 3 is fixedly connected to the middle of the connecting plate 2, the sealing plate 7 is fixedly connected to the telescopic rod of the first lifting cylinder 3, and the clamping cylinder 5 is fixedly connected to the sealing plate 7. One end of the clamping claw 6 is hinged to the telescopic rod of the clamping cylinder 5, and the middle of the clamping claw 6 is hinged to the sealing plate 7. A transverse push-pull cylinder 1 is also provided on one side of the first track, and the telescopic rod of the transverse push-pull cylinder 1 is connected to the connecting plate 2 in the first clamping device.

[0039] The sealing plate 7 is primarily used to maintain tight contact with the cylinder body during testing, thereby sealing the upper opening of the cylinder body and ensuring no leakage occurs during pressure testing. This design effectively prevents erroneous results due to poor sealing during testing, thus improving the accuracy and reliability of the test. The slider is fixed to the connecting plate 2 and slidably connected to the first track. It provides support for the clamping device, allowing it to move smoothly on the track. The connecting plate 2 fixes all components together, providing structural support and ensuring that all parts work in coordination to form a unified solution. The first lifting cylinder 3 is fixed in the middle of the connecting plate 2 and is responsible for controlling the up-and-down movement of the sealing plate 7. The clamping cylinder 5 is fixedly connected to the sealing plate 7, controlling the opening and closing of the clamping claws and providing the necessary clamping force to firmly clamp the cylinder body. The clamping claws are fixed to the telescopic rod of the clamping cylinder 5, allowing direct contact with the cylinder body for clamping. By controlling the extension and retraction of the clamping cylinder 5, the opening and closing state of the clamping claws is adjusted, ensuring the stability and reliability of the clamping. The first, second, and third clamping devices are connected together by a connecting rod 4. This connection method allows the clamping devices to work synchronously and cooperate with each other. A transverse push-pull cylinder 1 is also provided on one side of the first track. Its telescopic rod is connected to the connecting plate 2 in the first clamping device, thereby driving the three clamping devices to work synchronously.

[0040] In a preferred embodiment, the leak detection device includes a column 10, a water tank 11, a second track 8, rollers 9, and a second lifting cylinder 12. Two water tanks 11 are provided, positioned below the oil-water detection fixture and the cavity detection fixture. The rollers 9 are connected to the water tanks 11. The second track 8 is fixed to the column 10, with the rollers 9 slidably connected to it. The second lifting cylinder 12 is connected to the water tanks 11. The column 10 serves as the support for the entire detection device, providing structural support and stability, ensuring that the water tanks 11 and their related components are not easily displaced or tilted by external forces during operation. During leak detection, the water tanks 11 are used to hold water or other detection media, forming a liquid-sealed environment. Two water tanks 11 are provided for simultaneous oil-water seal detection and cavity seal detection. The second track 8, fixed to the column 10, provides guidance and support for the movement of the water tanks 11 and their auxiliary equipment. Through the sliding of the track, the water tanks 11 can move vertically or laterally along the column 10. Roller 9 is connected to water tank 11 and slidably connected to the second track 8, allowing water tank 11 to move smoothly during leak observation. The design of roller 9 helps reduce friction between water tank 11 and the supporting structure, ensuring stable and accurate positioning of water tank 11 during testing. The second lifting cylinder 12 is connected to water tank 11, controlling its up-and-down movement. The leak observation device optimizes the leak detection process between the oil-water testing fixture and the cavity testing fixture. Through the coordinated operation of column 10, roller 9, second track 8, and second lifting cylinder 12, the flexibility and stability of water tank 11 are ensured.

[0041] In a preferred embodiment, the engine cylinder block has interface 1 41, interface 2 42, interface 3 37, interface 40, interface 5 43, interface 6 38, interface 7 39, interface 8 45, interface 9 47, interface 10 46, interface 11 48, interface 12 49, interface 13 50, interface 14 53, and a water channel 52; wherein, interface 1 41 communicates with the water channel 52, and interfaces 53, 6 38, and 7 39 are all communicated with the cylinder block cavity, and notches 44 are provided on both sides of the cylinder block cavity; interfaces 2 42, 3 37, 4 40, 8 45, 9 47, and 10 46 are connected to the water channel 52. Interfaces 11 (48), 12 (49), 13 (50), and 14 (53) are all connected to the oil passage; the oil-water testing fixture includes a support base plate 13, a workpiece base plate 25, a plug head 17, a plug head 28, a plug head 319, a plug head 420, a plug head 51, a plug head 62, a plug head 723, and a support rod 15; among them, the workpiece base plate 25 is connected to the middle of the support base plate 13, and a sealing water groove 24 is provided on the workpiece base plate 25. The sealing water groove 24 cooperates with the water passage 52 on the cylinder body. An air inlet 1 is provided on one side of the workpiece base plate 25, and the air inlet 1 is connected to the sealing water groove 24; the plug Sealing head 17, sealing head 28, and sealing head 73 are located on both sides of the supporting base plate 113. Sealing head 17, sealing head 28, and sealing head 723 are connected to and controlled by cylinders. Sealing head 17 is aligned with interface 11 48, sealing head 28 is aligned with interface 9 47, and sealing head 723 is aligned with interface 8 45. Sealing head 39, sealing head 40, sealing head 5 21, and sealing head 6 22 are located on the front side of the supporting base plate 113. Sealing head 39, sealing head 40, sealing head 5 21, and sealing head 6 22 are connected to and controlled by cylinders. Sealing head 319 is aligned with interface 40. Position: The sealing head 420 is aligned with the interface 37, the sealing head 521 is aligned with the interface 22, and the sealing head 62 is aligned with the interface 11; the support rod 15 is set on the rear side of the support base plate 13 and connected to the cylinder, and the support rod 15 is controlled by the cylinder; the sealing head 218 is connected to the oil circuit air inlet detection connector, and the air inlet 1 of the workpiece base plate 125 is connected to the water channel 52 air inlet detection connector; the sealing plate 7 on the first clamping device is aligned with the cylinder on the workpiece base plate 125, the sealing plate 7 on the first clamping device is used to seal the interface 1249 and the interface 1350, and the workpiece base plate 125 is used to seal the water channel 52 and the interface 1453.

[0042] Interface 1 (41) connects to water channel 52, responsible for the water intake and flow in water channel 52, ensuring engine cooling and temperature control. Interfaces 5 (43), 6 (38), and 7 (39) connect to the cylinder cavity respectively. Interfaces 2 (42), 3 (37), 4 (40), 8 (45), 9 (47), 10 (46), 11 (48), 12 (49), 13 (50), and 14 (53) all connect to oil channels, providing channels for oil supply and return, ensuring engine lubrication and stable operation. Support base plate 13 supports the basic structure of the entire oil-water testing fixture, providing a stable platform to ensure the fixture remains stable during testing and processing. Workpiece base plate 25 mainly supports cylinder components. A sealing water groove 24 is provided on the base plate, which works with the water channel 52 of the cylinder to form a sealed environment, enabling effective liquid detection. The sealing plug is located on both sides and the front of support base plate 13, controlled by a cylinder, and aligned with the interface on the cylinder according to the detection logic. Plug head 17 aligns with interface 11 48 to control gas inflow and outflow. Plug head 2 18 aligns with interface 9 47 and is connected to an oil inlet detection connector for detecting oil leaks. Plug head 3 19 aligns with interface 40 to isolate gas. Plug head 4 aligns with interface 3 37 to enhance the sealing effect. Plug head 5 21 aligns with interface 2 42 to enhance the sealing effect. Plug head 6 22 aligns with interface 1 41 to block the inflow and outflow of water channel 52, ensuring the stability and detection accuracy of water channel 52. Plug head 7 23 aligns with interface 8 45 to ensure the airtightness of this interface. Support rod 15 is located on the rear side of support base plate 13. It is used to support the engine block. Sealing plate 7 on the first clamping device aligns with the cylinder block on workpiece base plate 25 to seal interfaces 12 49 and 13 50, ensuring sealing and pressure stability. Effective leakage control minimizes the impact of external interference on test results. The workpiece base plate 25 seals the water channel 52 and interface 14 53, further ensuring the airtightness of the water channel 52 and the clarity of the test. Through this detailed design and precision construction, the entire device aims for efficient testing of engine blocks, striving to ensure a complete seal of liquids and gases in both internal and external environments. The coordinated operation of each component not only improves the accuracy and timeliness of the test but also increases the stability and reliability of the system.

[0043] In a preferred embodiment, the cavity inspection fixture includes a second support base plate 14, a second workpiece base plate 36, a fixture filler, an upper sealing filler block 26, a first sealing plate 35, a second sealing plate 27, an eighth sealing head 34, a ninth sealing head 33, a tenth sealing head 32, an eleventh sealing head 31, a twelfth sealing head 30, a thirteenth sealing head 29, and a fourteenth sealing head 28; wherein, the second workpiece base plate 36 is connected to the middle of the second support base plate 14, and the upper sealing filler block 26 is connected to the second workpiece base plate 36. The upper sealing filler block 26 matches the cylinder bore of the cylinder block, and the workpiece base plate 26 is used to seal the bottom cylinder bore of the cylinder block; the tooling filler is connected to the bottom of the sealing plate 7 of the second clamping device, and the sealing plate 7 of the second clamping device is used to seal the top of the engine cylinder block on the workpiece base plate 26, and the tooling filler is used to seal the crankcase of the engine cylinder block; the sealing plate 1 35 and the sealing plate 27 are respectively set on both sides of the supporting base plate 2 14, and the sealing plate 1 35 and the sealing plate 27 are respectively connected to the cylinder and controlled by the cylinder. The sealing plate 1 (35) and sealing plate 2 (27) are aligned with the notch 44 on the cylinder. Sealing plate 1 (35) is used to seal the right end face of the engine cylinder block on the workpiece base plate 2 (36), and sealing plate 2 (27) is used to seal the left notch 44 of the engine cylinder block on the workpiece base plate 2 (36). Sealing heads 8 (34), 9 (33), 10 (32), 11 (31), 12 (30), and 13 (29) are all located on the front side of the supporting base plate 2 (14). Sealing head 8 (34) is aligned with the interface. The four 40s are aligned, the nine 33s of the sealing head are aligned with the seven 39s, the ten 32s of the sealing head are aligned with the six 38s, the eleven 31s of the sealing head are aligned with the two 42s, the twelfth 30s of the sealing head are aligned with the three 37s, and the thirteenth 29s of the sealing head are aligned with the one 41s of the sealing head; the fourteenth 28s are set on one side of the support base plate two 14 and connected to the cylinder, the fourteenth 28s of the sealing head are controlled by the cylinder, the fourteenth 28s of the sealing head are aligned with the eight 45s, and the cavity air inlet detection connector is connected to the tenth 32s of the sealing head.

[0044] Among them, the support base plate 214 serves as the basic component of the entire cavity inspection fixture, providing support and stability to ensure that the system does not shift or tilt during inspection, and providing a solid mounting platform for other components. The workpiece base plate 236 is used to seal the cylinder bore at the bottom of the cylinder block, ensuring no leakage during inspection. Simultaneously, the structural design of the workpiece base plate 236 allows it to be effectively integrated with other components to form a closed inspection system. The upper sealing filler block 26 connects to the workpiece base plate 236 and matches the cylinder bore of the cylinder block. The upper sealing filler block 26 provides a precise seal, preventing gas or liquid leakage from the cylinder bore during inspection, thus improving the accuracy and reliability of the inspection. The fixture filler is used to seal the crankcase in the engine block and ensure a stable environment within the crankcase during inspection, improving the accuracy of the inspection. The sealing plates 135 and 27 are connected to and controlled by the cylinder, performing sealing work through the cylinder's movement. The sealing head 34 is used to seal the interface 40. Plug head 9 33 aligns with interface 7 39 to seal interface 7 39. Plug head 10 32 aligns with interface 6 38 to control the sealing state with the cylinder body. The cavity air inlet detection connector on plug head 10 32 allows gas to be injected into the cavity through plug head 10 32. Plug head 11 31 is used to seal interface 2 42. Plug head 12 30 aligns with interface 3 37 to provide additional sealing support. Plug head 13 29 aligns with interface 1 41 to control the inflow and outflow of water channel 52. Plug head 14 28 is located on one side of support base plate 2 14, connected to a cylinder, and used to close the connection with interface 8 45.

[0045] In a preferred embodiment, a typewriter clamp is connected to the rear side of the support base plate 13. The typewriter clamp is connected to and controlled by an impact cylinder. The typewriter clamp is used to hold the typewriter head, which prints markings onto the cylinder body.

[0046] In a preferred embodiment, sealing heads 17, 18, 19, 20, 21, 22, 23, 34, 32, 31, 32, 30, 29, and 28 are all connected to the cylinder via connecting parts. The connecting parts include a sleeve 57, a connecting block 56, a movable rod 55, and a spring 54. One end of the connecting block 56 is connected to the telescopic rod of the cylinder. The sleeve 57 is sleeved on the outside of the connecting block 56. A movable cavity 58 is provided in the top side of the connecting block 56. The bottom side of the movable rod 55 is movably connected to the movable cavity 58. A spring 54 is sleeved in the top side of the movable rod 55. The top of the movable rod 55 is connected to the sealing head. The connector ensures an effective sealing connection between the sealing head and each interface. Specifically, during use, the cylinder controls the sealing head to approach the interface. During this approach, the sealing head moves the movable rod 55 into the movable cavity 58, compressing the spring 54. This ensures a certain degree of flexibility between the sealing head and the interface, allowing the sealing head to still seal the interface even if the engine vibrates. The sleeve 57 on the outside of the connecting block 56 protects the movable rod 55 and the spring 54.

[0047] In a preferred embodiment, limiting rods are fixedly connected to both sides of the top of the sealing plate 7, and the limiting rods are movably connected to the mounting plate. The limiting rods enable the sealing plate 7 to be effectively positioned during installation and adjustment, ensuring a good sealing effect between the sealing plate 7 and the workpiece.

[0048] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated leak testing mechanism for engine cylinder block machining, characterized in that: It includes a transmission mechanism and a leak testing mechanism; the leak testing mechanism includes an oil and water testing fixture, a cavity testing fixture and a leak observation device; the oil and water testing fixture is used to seal the cylinder oil passage and water passage (52) and pressurize the oil passage and water passage (52); the cavity testing fixture is used to test the cylinder cavity; the leak observation device is used to observe the leaking parts of the cylinder. The transfer mechanism includes a first clamping device, a second clamping device, and a third clamping device. The first clamping device clamps the untested cylinder and places it on the oil and water testing fixture. The second clamping device is used to transfer the tested cylinder on the oil and water testing fixture to the cavity testing fixture. The third clamping device is used to remove the tested cylinder from the cavity testing fixture. The oil and water testing fixture and the cavity testing fixture work synchronously, as do the first, second, and third clamping devices. The first clamping device, the second clamping device, and the third clamping device are connected together by a connecting rod (4); the first clamping device, the second clamping device, and the third clamping device have the same structure, each including a sealing plate (7), a connecting plate (2), a first lifting cylinder (3), a clamping cylinder (5), and a clamping claw (6); the first lifting cylinder (3) is fixedly connected to the middle part of the connecting plate (2), the sealing plate (7) is fixedly connected to the telescopic rod of the first lifting cylinder (3), and the clamping cylinder (5) is fixedly connected to the sealing plate (7); one end of the clamping claw (6) is hinged to the telescopic rod of the clamping cylinder (5), and the middle part of the clamping claw (6) is hinged to the sealing plate (7).

2. The automated leak testing mechanism for engine cylinder block machining according to claim 1, characterized in that: A first track is provided above the oil-water testing fixture and the cavity testing fixture, and the first clamping device, the second clamping device and the third clamping device are all slidably connected to the first track.

3. The automated leak testing mechanism for engine cylinder block machining according to claim 2, characterized in that: A slider is fixed on the connecting plate (2), and the slider is slidably connected to the first track. A transverse push-pull cylinder (1) is also provided on one side of the first track. The telescopic rod of the transverse push-pull cylinder (1) is connected to the connecting plate (2) in the first clamping device.

4. The automated leak testing mechanism for engine cylinder block machining according to claim 3, characterized in that: The air leakage observation device includes a column (10), a water tank (11), a second track (8), a roller (9), and a second lifting cylinder (12); there are two water tanks (11), which are located below the oil and water detection fixture and the cavity detection fixture. The roller (9) is connected to the water tank (11). The second track (8) is fixed on the column (10) and the roller (9) is slidably connected to the second track (8). The second lifting cylinder (12) is connected to the water tank (11).

5. The automated leak testing mechanism for engine cylinder block machining according to claim 4, characterized in that: The engine block has interface 1 (41), interface 2 (42), interface 3 (37), interface 4 (40), interface 5 (43), interface 6 (38), interface 7 (39), interface 8 (45), interface 9 (47), interface 10 (46), interface 11 (48), interface 12 (49), interface 13 (50), interface 14 (53) and water passage (52); among them, interface 1 (41) is connected to water passage (52), interface 5 (43), interface 6 (38) and interface 7 (39) are all connected to the cylinder block cavity, and notches (44) are provided on both sides of the cylinder block cavity. Interface 2 (42), interface 3 (37), interface 4 (40), interface 8 (45), interface 9 (47), interface 10 (46), interface 11 (48), interface 12 (49), interface 13 (50) and interface 14 (53) are all connected to oil passage; The oil-water testing fixture includes a support base plate 1 (13), a workpiece base plate 1 (25), a sealing head 1 (17), a sealing head 2 (18), a sealing head 3 (19), a sealing head 4 (20), a sealing head 5 (21), a sealing head 6 (22), a sealing head 7 (23), and a support rod (15); wherein, the workpiece base plate 1 (25) is connected to the middle of the support base plate 1 (13), and a sealing water groove (24) is provided on the workpiece base plate 1 (25). The sealing water groove (24) cooperates with the water channel (52) on the cylinder body. 25) has an air inlet on one side, which is connected to the sealing water tank (24); the sealing head 1 (17), sealing head 2 (18) and sealing head 7 (23) are set on both sides of the supporting base plate 1 (13), the sealing head 1 (17), sealing head 2 (18) and sealing head 7 (23) are respectively connected to the cylinder and controlled by the cylinder, the sealing head 1 (17) is aligned with the interface 11 (48), the sealing head 2 (18) is aligned with the interface 9 (47), the sealing head 7 (23) is aligned with the interface 8 (45); the sealing head 3 (19) The four (20), five (21), and six (22) plugging heads are located on the front side of the support base plate one (13). The three (19), four (20), five (21), and six (22) plugging heads are connected to and controlled by the cylinders. The three (19) plugging head is aligned with the four (40) interface, the four (20) plugging head is aligned with the three (37) interface, the five (21) plugging head is aligned with the two (42) interface, and the six (22) plugging head is aligned with the one (41) interface. The support rod (15) is located on the front side of the support base plate one (13). The rear side of the support base plate (13) is connected to the cylinder, and the support rod (15) is controlled by the cylinder; the sealing head (18) is connected to the oil circuit air inlet detection connector, and the air inlet of the workpiece base plate (25) is connected to the water channel (52) air inlet detection connector; the sealing plate (7) on the first clamping device is aligned with the cylinder body on the workpiece base plate (25), the sealing plate (7) on the first clamping device is used to seal the interface twelve (49) and interface thirteen (50), and the workpiece base plate (25) is used to seal the water channel (52) and interface fourteen (53).

6. The automated leak testing mechanism for engine cylinder block machining according to claim 5, characterized in that: The cavity inspection fixture includes a second support base plate (14), a second workpiece base plate (36), a fixture filler, an upper sealing filler block (26), a first sealing plate (35), a second sealing plate (27), an eighth sealing head (34), a ninth sealing head (33), a tenth sealing head (32), an eleventh sealing head (31), a twelfth sealing head (30), a thirteenth sealing head (29), and a fourteenth sealing head (28); wherein, the second workpiece base plate (36) is connected to the middle of the second support base plate (14), and the upper sealing filler block (26) is connected to the second workpiece base plate (36). (26) Matches the cylinder bore of the cylinder block, and the workpiece base plate two (36) is used to seal the bottom cylinder bore of the cylinder block; the tooling filler is connected to the bottom of the sealing plate (7) of the second clamping device, and the sealing plate (7) of the second clamping device is used to seal the top of the engine cylinder block on the workpiece base plate two (36), and the tooling filler is used to seal the crankcase of the engine cylinder block; the sealing plate one (35) and the sealing plate two (27) are respectively set on both sides of the support base plate two (14), and the sealing plate one (35) and the sealing plate two (27) are respectively connected to the cylinder and controlled by the cylinder, and the sealing plate one (35) and the sealing plate two (27) are respectively connected to the cylinder and controlled by the cylinder. The second blocking plate (27) is aligned with the notch (44) on the cylinder; the first sealing plate (35) is used to seal the right end face of the engine cylinder on the workpiece base plate (36), and the second sealing plate (27) is used to seal the left notch (44) of the engine cylinder on the workpiece base plate (36); the eighth sealing head (34), the ninth sealing head (33), the tenth sealing head (32), the eleventh sealing head (31), the twelfth sealing head (30), and the thirteenth sealing head (29) are all located on the front side of the support base plate (14), and the eighth sealing head (34) is aligned with the fourth interface (40). The sealing head nine (33) is aligned with the interface seven (39), the sealing head ten (32) is aligned with the interface six (38), the sealing head eleven (31) is aligned with the interface two (42), the sealing head twelve (30) is aligned with the interface three (37), and the sealing head thirteen (29) is aligned with the interface one (41). The sealing head fourteen (28) is set on one side of the support base plate two (14) and connected to the cylinder. The sealing head fourteen (28) is controlled by the cylinder. The sealing head fourteen (28) is aligned with the interface eight (45). The sealing head ten (32) is connected to the cavity air inlet detection connector.

7. The automated leak testing mechanism for engine cylinder block machining according to claim 6, characterized in that: A typewriter clamp is connected to the rear side of the support base plate (13), and the typewriter clamp is connected to the impact cylinder and controlled by the impact cylinder.

8. The automated leak testing mechanism for engine cylinder block machining according to claim 7, characterized in that: The first (17), second (18), third (19), fourth (20), fifth (21), sixth (22), seventh (23), eighth (34), ninth (33), tenth (32), eleventh (31), twelfth (30), thirteenth (29), and fourteenth (28) of the sealing head are all connected to the cylinder through connecting parts.

9. The automated leak testing mechanism for engine cylinder block machining according to claim 8, characterized in that: The connecting components include a sleeve (57), a connecting block (56), a movable rod (55), and a spring (54); wherein, one end of the connecting block (56) is connected to the telescopic rod of the cylinder, the sleeve (57) is sleeved on the outside of the connecting block (56), a movable cavity (58) is provided in the top side of the connecting block (56), the bottom side of the movable rod (55) is movably connected in the movable cavity (58), the top side of the movable rod (55) is sleeved with a spring (54), and the top of the movable rod (55) is connected to the sealing head.

10. An automated leak testing mechanism for engine cylinder block machining according to claim 9, characterized in that: Limiting rods are fixed to both sides of the top of the sealing plate (7), and the limiting rods are movably connected to the mounting plate.

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