Engine cylinder block machining leakage test automation mechanism

Abstract

The invention discloses an automatic leakage testing mechanism for engine cylinder block machining. 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 invention belongs to the technical field of engine processing, and in particular relates to an automatic leak testing mechanism for processing an engine cylinder body. Background Art

[0002] The engine block is a key component in an internal combustion engine. It forms the main structure of the engine and includes the cylinder, coolant channel, and oil channel. The main function of the cylinder block is to accommodate the piston, fuel and air mixture in the cylinder, and to withstand the high pressure and high temperature during operation. The engine block needs to ensure that there will be no leakage of gas or coolant during operation. Therefore, the engine block needs to be leak tested during processing. The leak test can help find tiny cracks or defects in the cylinder block and detect whether the water and oil channels of the product are leaking water or oil, thereby ensuring the sealing of the product. Through testing, potential manufacturing defects can be discovered in time, the failure rate in later operation can be reduced, and the reliability of the engine can be improved.

[0003] In the prior art, when conducting a leak test, the product water channel, oil channel and cavity need to be tested separately during the processing of the engine cylinder body, and usually two leak test equipment are required: a water channel test equipment, an oil channel test equipment and a cavity test equipment. The traditional leak test method cannot test the water and oil channels and the cavity at the same time. At the same time, due to the large number of holes, it takes a lot of time to seal, so there is a problem of low detection efficiency.

[0004] The patent with publication number CN215524928U discloses an engine cylinder leak tester, which solves the problem that in the existing cylinder air tightness test, each hole on the cylinder is blocked with a number of plugs before the air tightness test is performed. The use of this structure has the advantage of good sealing effect. However, the detection tooling of this structure is not suitable for assembly line testing, and there will be a problem of low detection efficiency when a large number of engine cylinders need to be tested for air tightness. Summary of the invention

[0005] The purpose of the present invention is to provide an automated leak testing mechanism for engine cylinder block processing to solve the following technical problems raised in the background technology:

[0006] Traditional leak testing methods cannot detect the water and oil channels and the cavity at the same time, and require manual blocking or button operation, and cannot achieve automatic online testing.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] An automated mechanism for leak testing in engine cylinder processing comprises a transmission mechanism and a leak testing mechanism; the leak testing mechanism comprises an oil-water detection tool, a cavity detection tool and an air leakage observation device; the oil-water detection tool is used to block the oil circuit, water channel and cavity of the cylinder and to pressurize the oil circuit and air (water) circuit; the cavity detection tool is used to block the oil circuit, water channel and cavity of the cylinder and to pressurize the cavity; the air leakage observation device is used to observe and check whether there is air leakage in the cylinder; 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 and places it on the oil-water detection tool, the second clamping device is used to transfer the cylinder that has been detected on the oil-water detection tool to the cavity detection tool, and the third clamping device is used to take away the cylinder that has been 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.

[0009] Furthermore, a first track is provided above the oil-water detection tooling and the cavity detection tooling, 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, and all include a sealing plate, a slider, a connecting plate, a first lifting cylinder, a clamping cylinder and a clamping claw; the slider is fixed to the connecting plate, the slider is slidably connected to the first track, the first lifting cylinder is fixed to the middle part of the connecting plate, the sealing plate is fixed to the telescopic rod of the first lifting cylinder, the clamping cylinder is fixed to the sealing plate, one end of the clamping claw is hinged to the telescopic rod of the clamping cylinder, and the middle part of the clamping claw is hinged to the sealing plate; 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.

[0011] Furthermore, the air leakage observation device includes a column, a water tank, a second track, a roller and a second lifting cylinder; wherein, two water tanks are provided, the water tanks are arranged below the oil and water detection tooling and the cavity detection tooling, the rollers are connected to the water tanks, the second track is fixed to the column, the rollers are slidably connected to the second track, and the second lifting cylinder is connected to the water tank.

[0012] Furthermore, the cylinder body of the engine has interface 1, interface 2, interface 3, interface 4, interface 5, interface 6, interface 7, interface 8, interface 9, interface 10, interface 11, interface 12, interface 13, interface 14 and a waterway; wherein interface 1 is connected to the waterway, interface 5, interface 6 and interface 7 are all connected to the cylinder body cavity, notches are arranged on both sides of the cylinder body cavity, interface 2, interface 3, interface 4, interface 8, interface 9, interface 10, interface 11, interface 12 and interface 13 are connected to the cylinder body cavity, and interface 14 is connected to the cylinder body cavity. The three and the interface fourteen are all connected with the oil channel; the oil and water detection tooling includes a supporting base plate one, a workpiece base 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 base plate one is connected to the middle part of the supporting base plate one, a sealing water tank is arranged on the workpiece base plate one, and the sealing water tank cooperates with the water channel on the cylinder body, and an air inlet one is arranged on one side of the workpiece base plate one, and the air inlet one is connected with the sealing water tank; the plugging head one, the plugging head two and the sealing The plugging head 7 is arranged on both sides of the supporting base plate 1, the plugging head 1, the plugging head 2 and the plugging head 7 are respectively connected to the cylinder and controlled by the cylinder, the plugging head 1 is aligned with the interface 11, the plugging head 2 is aligned with the interface 9, and the plugging head 7 is aligned with the interface 8; the plugging head 3, the plugging head 4, the plugging head 5 and the plugging head 6 are arranged on the front side of the supporting base plate 1, the plugging head 3, the plugging head 4, the plugging head 5 and the plugging head 6 are respectively connected to the cylinder and controlled by the cylinder, the plugging head 3 is aligned with the interface 4, the plugging head 4 is aligned with the interface Three alignments, 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 supporting base plate one and is connected to the cylinder, and the support rod is controlled by the cylinder; the plugging head two is connected with the oil circuit air intake detection joint, and the air inlet one of the workpiece base plate one is connected with the water channel air intake detection joint; the sealing plate on the first clamping device is aligned with the cylinder body on the workpiece base plate one, the sealing plate on the first clamping device is used to seal the interface twelve and the interface thirteen, and the workpiece base plate one is used to seal the water channel and the interface fourteen.

[0013] Furthermore, the cavity detection tooling includes a supporting base plate 2, a workpiece base plate 2, a tooling filling, an upper sealing filling block, a sealing plate 1, a sealing plate 2, a sealing head 8, a sealing head 9, a sealing head 10, a sealing head 11, a sealing head 12, a sealing head 13 and a sealing head 14; wherein, the workpiece base plate 2 is connected to the middle part of the supporting base plate 2, the upper sealing filling block is connected to the workpiece base plate 2, the upper sealing filling block matches the cylinder hole of the cylinder body, and the workpiece base plate 2 is used to seal the cylinder hole at the bottom of the cylinder body; the tooling filling 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 body on the workpiece base plate 2, and the tooling filling is used to seal the crankcase of the engine cylinder body; the sealing plate 1 and the sealing plate 2 are respectively arranged on both sides of the supporting base plate 2, and the sealing plate 1 and the sealing plate 2 are respectively connected to the gas The cylinder is controlled by the cylinder, and the sealing plate one and the sealing plate two are aligned with the notch on the cylinder; the sealing plate one is used to seal the right end face of the engine cylinder body on the workpiece bottom plate two, and the sealing plate two is used to seal the left notch of the engine cylinder body on the workpiece bottom plate two; the sealing head eight, the sealing head nine, the sealing head ten, the sealing head eleven, the sealing head twelve and the sealing head thirteen are all arranged on the front side of the supporting bottom plate two, the sealing head eight is aligned with the interface four, the sealing head nine is aligned with the interface seven, the sealing head ten is aligned with the interface six, the sealing head eleven is aligned with the interface two, the sealing head twelve is aligned with the interface three, and the sealing head thirteen is aligned with the interface one; the sealing head fourteen is arranged on one side of the supporting bottom plate two and connected to the cylinder, the sealing head fourteen is controlled by the cylinder, the sealing head fourteen is aligned with the interface eight, and the sealing head ten is connected with a cavity air intake detection joint.

[0014] Furthermore, a typing head clamp is connected to the rear side of the supporting base plate 1, and the typing head clamp is connected to the impact cylinder and controlled by the impact cylinder.

[0015] Furthermore, plugging head one, plugging head two, plugging head three, plugging head four, plugging head five, plugging head six, plugging head seven, plugging head eight, plugging head nine, plugging head ten, plugging head eleven, plugging head twelve, plugging head thirteen and plugging head fourteen are respectively connected to the cylinder through connecting parts, and the connecting parts include a sleeve, a connecting block, a movable rod and a spring; wherein, one end of the connecting block is connected to the telescopic rod of the cylinder, the sleeve is sleeved on the outside of the connecting block, a movable cavity is arranged on one side of the top of the connecting block, the bottom side of the movable rod is movably connected in the movable cavity, a spring is sleeved on one side of the top of the movable rod, and the top of the movable rod is connected to the plugging head.

[0016] Furthermore, limiting rods are fixedly connected to both sides of the top of the sealing plate, and the limiting rods are movably connected to the mounting plate.

[0017] An engine cylinder block processing leak testing method, used in an engine cylinder block processing leak testing automation mechanism, includes the following methods:

[0018] S1, the engine cylinder body is transferred to the leak test automation mechanism via the feeding conveyor roller;

[0019] S2, the first clamping device clamps and drives the engine cylinder body on the feeding conveying roller to the oil and water detection tooling; the second clamping device clamps and drives the engine cylinder body that has been inspected on the oil and water detection tooling to the cavity detection tooling; the third clamping device clamps and drives the engine cylinder body that has been inspected on the cavity detection device to the unloading conveying roller;

[0020] S3, control all cylinder telescopic rods connected to the plugging heads and the plugging plates to extend, control the first lifting cylinders in the first clamping device and the second clamping device to extend and drive the sealing plates in the first clamping device and the second clamping device to press on the engine cylinder body; through the sealing plate in the first clamping device and the workpiece bottom plate-sealed upper and lower end surfaces of the engine cylinder body on the oil and water detection tooling and the interfaces and water channels on the upper and lower end surfaces, the plugging heads in the oil and water detection tooling are connected to the joints on the engine cylinder body and block the oil and water channels; through the sealing plate in the second clamping device and the tooling to fill the sealed cavity detection tooling, the top of the crankcase of the engine cylinder body on the engine cylinder body is detected, and the water channels of the engine cylinder body on the engine cylinder body on the second sealed cavity detection tooling are detected; the cavity of the engine cylinder body is blocked by the plugging heads and plugging plates in the cavity detection tooling in cooperation with the joints and notches on the engine cylinder body;

[0021] S4, filling gas into the water channel of the engine cylinder block on the workpiece bottom plate 1 through the water channel air intake detection joint; filling gas into the oil channel of the engine cylinder block on the workpiece bottom plate 1 through the oil channel air intake detection joint; filling gas into the engine cylinder block cavity of the workpiece bottom plate 2 through the cavity air intake detection joint;

[0022] S5, raising the water tank by the second lifting cylinder, submerging the two engine cylinders to be tested with water in the water tank, and observing whether bubbles are generated on the two engine cylinders. If bubbles are generated on the engine cylinder body, it indicates that there is a gas leak at that location;

[0023] S6, drop the water tank through the second lifting cylinder and wait for three minutes until the water on the engine block flows into the water tank; the first clamping device clamps the engine block on the loading conveyor roller and drives it to the oil and water detection tooling; the second clamping device clamps the engine block that has been inspected on the oil and water detection tooling and drives it to the cavity detection tooling; the third clamping device clamps the engine block that has been inspected on the cavity detection device and drives it to the unloading conveyor roller.

[0024] Further, in S2, the first clamping device, the second clamping device and the third clamping device are started synchronously.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the present invention, the first clamping device, the second clamping device and the third clamping device can be started synchronously and operated in coordination. The clamping device is designed to accurately dock the cylinder body, ensure the stability of the workpiece during the detection process, and reduce the risk of missed detection due to inaccurate position. Through this device, the leak test process can be unmanned, the equipment automatically grabs the product and performs water and oil channel and cavity leak tests, and automatically goes offline after the leak test is completed.

[0027] The oil and water detection fixture and the cavity detection fixture can work synchronously to block and apply pressure. By pressurizing the oil and water channels under simulated working conditions, potential leaks can be detected in time, so that the blank can be improved.

[0028] In the present invention, the overall design of all components enables the oil and water detection tooling, cavity detection tooling and clamping device to work efficiently and cooperatively, ensuring efficient detection of the engine cylinder block. This design of the present invention can perform cavity leak testing when testing the water and oil channels, shorten the leak testing cycle, improve production capacity and achieve automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is one of the schematic diagrams of the oil-water detection tooling structure of the present invention;

[0031] Figure 3 This is one of the schematic diagrams of the cavity detection tooling structure of the present invention;

[0032] Figure 4 It is a front view of the engine cylinder block of the present invention;

[0033] Figure 5 It is a left side view of the engine cylinder block of the present invention;

[0034] Figure 6 It is a right side view of the engine cylinder block of the present invention;

[0035] Figure 7 A top view of the engine cylinder block of the present invention;

[0036] Figure 8 A bottom view of the engine cylinder block of the present invention;

[0037] Fig. 9 It is a schematic structural diagram of the clamping claw of the present invention;

[0038] Fig.10 It is a structural schematic diagram of the connecting piece of the present invention;

[0039] Fig.11 It is a structural schematic diagram of the oil-water detection tooling and the cylinder body of the present invention;

[0040] Fig.12 It is a structural schematic diagram of the cavity detection tooling and the cylinder body of the present invention;

[0041] Fig.13 This is the second schematic diagram of the oil-water detection tooling structure of the present invention;

[0042] Fig.14 This is the second schematic diagram of the cavity detection tooling structure of the present invention.

[0043] Markings in the figure: 1-lateral 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-plugging head one, 18-plugging head two, 19-plugging head three, 20-plugging head four, 21-plugging head five, 22-plugging head six, 23-plugging head seven, 24-sealed water tank, 25-workpiece base plate one, 26-upper sealing filling block, 27-plugging plate two, 28-plugging head fourteen, 2 9-sealing head thirteen, 30-sealing head twelve, 31-sealing head eleven, 32-sealing head ten, 33-sealing head nine, 34-sealing head eight, 35-sealing plate one, 36-workpiece bottom plate two, 37-interface three, 38-interface six, 39-interface seven, 40-interface four, 41-interface one, 42-interface two, 43-interface five, 44-notch, 45-interface eight, 46-interface ten, 47-interface nine, 48-interface eleven, 49-interface twelve, 50-interface thirteen, 52-water channel, 53-interface fourteen, 54-spring, 55-movable rod, 56-connecting block, 57-sleeve, 58-movable cavity, 59-tool filling. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example:

[0046] An automatic mechanism for leak testing of engine cylinder block processing, such as Figure 1As shown, it includes a transmission mechanism and a leak test mechanism; the leak test mechanism includes an oil-water detection tool, a cavity detection tool and an air leakage observation device; the oil-water detection tool is used to block the oil circuit and water channel of the cylinder body and pressurize the oil circuit and water channel; the cavity detection tool is used to pressurize the cylinder cavity; the air leakage observation device is used to observe and check the leakage point of the cylinder body; the transmission mechanism includes a first clamping device, a second clamping device and a third clamping device, the first clamping device clamps the undetected cylinder body and places it on the oil-water detection tool, the second clamping device is used to transfer the cylinder body that has been detected on the oil-water detection tool to the cavity detection tool, and the third clamping device is used to take away the cylinder body that has been 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.

[0047] The main function of the oil and water detection tooling is to block the oil and water channels of the engine cylinder and apply pressure to detect potential leaks. By pressurizing, working conditions can be simulated to check possible weak links, which is crucial to ensure the operating reliability of the engine in actual use. The cavity detection tooling focuses on blocking and applying pressure to the cavity of the engine cylinder, which helps to further check the sealing of the cavity. The integrity of the cavity directly affects the performance and durability of the engine. The air leakage detection device is used to observe and check whether there is air leakage in the engine cylinder in real time. Through a visual method, the sealing condition of the engine cylinder can be quickly judged, which greatly improves the detection efficiency and accuracy. The first clamping device is responsible for clamping the untested cylinder and placing it on the oil and water detection tooling to ensure that the cylinder is not damaged when entering the detection process, and accurately and stably align the tooling to reduce human errors. The second clamping device is used to transfer the cylinder that has been tested on the oil and water detection tooling to the cavity detection tooling. The third clamping device takes the inspected cylinder body from the cavity inspection tooling to ensure the rational use of space, so that the efficiency of the entire production process will not be affected by backlogs, and the cylinder body is prepared for subsequent processes. The oil and water detection tooling and the cavity detection tooling work synchronously, and the first, second and third clamping devices also achieve coordinated operation. This structural design not only improves the overall efficiency of the production line, but also effectively reduces the error rate. Therefore, the design of this engine cylinder body processing leak test automation mechanism fully considers the efficiency and accuracy of the entire detection process, thereby providing an important guarantee for improving the production quality of the engine cylinder body.

[0048] In a preferred embodiment, Figure 1As shown, a first track is arranged above the oil-water detection tooling and the cavity detection tooling, and the first clamping device, the second clamping device and the third clamping device are all slidably connected to the first track; 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, and all include a sealing plate 7, a slider, a connecting plate 2, a first lifting cylinder 3, a clamping cylinder 5 and a clamping claw 6; the slider is fixed to the connecting plate 2, the slider is slidably connected to the first track, the first lifting cylinder 3 is fixed to the middle of the connecting plate 2, and the sealing plate 7 is fixed to the telescopic rod of the first lifting cylinder 3. Fig. 9 As shown, 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; 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.

[0049] Among them, the sealing plate 7 is mainly used to be in close contact with the cylinder body during the detection process, so as to seal the upper opening of the cylinder body and ensure that no leakage occurs during the pressure test. This design can effectively prevent erroneous results caused by poor sealing during the detection process, thereby improving the accuracy and reliability of the detection. The slider is fixed to the connecting plate 2 and is slidably connected to the first track. It provides support for the clamping device so that it can move smoothly on the track. The connecting plate 2 fixes the components together, provides structural support, and ensures that all components can work in coordination to form an overall solution. The first lifting cylinder 3 is fixed to 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, controls the opening and closing of the clamping claw 6, and provides the necessary clamping force to firmly clamp the cylinder body. The clamping claw 6 is fixed to the telescopic rod of the clamping cylinder 5, and can directly contact the cylinder body to achieve clamping. By controlling the telescopic movement of the clamping cylinder 5, the opening and closing state of the clamping claw 6 is adjusted to ensure the stability and reliability of the clamping. The first clamping device, the second clamping device and the third clamping device are connected together by a connecting rod 4. This connection mode enables each clamping device to work synchronously and cooperate with each other. A lateral push-pull cylinder 1 is also provided on one side of the first track, and its telescopic rod is connected to the connecting plate 2 in the first clamping device, thereby driving the three clamping devices to work synchronously.

[0050] In a preferred embodiment, Figure 1As shown, 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; wherein, two water tanks 11 are provided, the water tanks 11 are arranged below the oil-water detection tooling and the cavity detection tooling, the roller 9 is connected to the water tank 11, the second track 8 is fixed to the column 10, the roller 9 is slidably connected to the second track 8, and the second lifting cylinder 12 is connected to the water tank 11. wherein, the column 10 serves as a bracket of the entire observation device, providing structural support and stability, ensuring that the water tank 11 and its related components are not easily displaced or tilted by external forces during operation. During the air leakage detection process, the water tank 11 is used to load water or other detection media to form a liquid sealing environment. The two water tanks 11 are provided to perform oil-water sealing detection and cavity sealing detection simultaneously. The second track 8 is fixed to the column 10 to provide guidance and support for the movement of the water tank 11 and its auxiliary equipment. Through the sliding of the track, the water tank 11 can move up and down or laterally along the column 10. The roller 9 is connected to the water tank 11 and is slidably connected to the second track 8, so that the water tank 11 can move smoothly when observing air leaks. The design of the roller 9 helps to reduce the friction between the water tank 11 and the supporting structure, ensuring that the position of the water tank 11 is adjusted smoothly and accurately during the detection process. The second lifting cylinder 12 is connected to the water tank 11 to control the up and down movement of the water tank 11. The design of the air leakage observation device optimizes the air leakage detection process between the oil and water detection tooling and the cavity detection tooling. The flexibility and stability of the water tank 11 are ensured through the coordinated work of the column 10, the roller 9, the second track 8 and the second lifting cylinder 12.

[0051] In a preferred embodiment, Figures 4 to 8 As shown, the cylinder body of the engine has an interface 1 41, an interface 2 42, an interface 3 37, an interface 40, an interface 5 43, an interface 6 38, an interface 7 39, an interface 8 45, an interface 9 47, an interface 10 46, an interface 11 48, an interface 12 49, an interface 13 50, an interface 14 53 and a water channel 52; wherein, the interface 1 41 is connected with the water channel 52, the interface 5 43, the interface 6 38 and the interface 7 39 are all connected with the cylinder body cavity, notches 44 are provided on both sides of the cylinder body cavity, and the interface 2 42, the interface 3 37, the interface 40, the interface 8 45, the interface 9 47, the interface 10 46, the interface 11 48, the interface 12 49, the interface 13 50 and the interface 14 53 are all connected with the oil channel; as shown Figure 2 , Fig.11 as well as Fig.13As shown, the oil-water detection tooling includes a supporting base plate 13, a workpiece base plate 25, a plugging head 17, a plugging head 2 18, a plugging head 3 19, a plugging head 4 20, a plugging head 5 21, a plugging head 6 22, a plugging head 7 23 and a supporting rod 15; wherein the workpiece base plate 25 is connected to the middle part of the supporting base plate 13, and a sealing water tank 24 is arranged on the workpiece base plate 25, and the sealing water tank 24 cooperates with the water channel 52 on the cylinder body, and the workpiece base plate 25 is connected to the middle part of the supporting base plate 13 ... sealing water tank 24 is connected to the working base plate 25. An air inlet 1 is provided on one side of the support plate 13, and the air inlet 1 is connected to the sealing water tank 24; a plugging head 17, a plugging head 21 and a plugging head 23 are provided on both sides of the support bottom plate 13, and the plugging head 17, the plugging head 21 and the plugging head 23 are respectively connected to the cylinder and controlled by the cylinder, the plugging head 17 is aligned with the interface 11 48, the plugging head 21 is aligned with the interface 9 47, and the plugging head 23 is aligned with the interface 8 45; the plugging head 3 19, the plugging head 40 and the plugging head 41 are aligned with each other. The four 20, the plugging head five 21 and the plugging head six 22 are arranged at the front side of the supporting bottom plate one 13, the plugging head three 19, the plugging head four 20, the plugging head five 21 and the plugging head six 22 are respectively connected to the cylinder and controlled by the cylinder, the plugging head three 19 is aligned with the interface four 40, the plugging head four 20 is aligned with the interface three 37, the plugging head five 21 is aligned with the interface two 42, and the plugging head six 22 is aligned with the interface one 41; the support rod 15 is arranged on the supporting bottom plate one 13 The rear side is connected to the cylinder, and the support rod 15 is controlled by the support cylinder 16; the sealing head 18 is connected to the oil circuit air intake detection joint, and the air inlet of the workpiece base plate 25 is connected to the water channel 52 air intake detection joint; the sealing plate 7 on the first clamping device is aligned with the cylinder body on the workpiece base plate 25, and the sealing plate 7 on the first clamping device is used to seal the interface twelve 49 and the interface thirteen 50, and the workpiece base plate 25 is used to seal the water channel 52 and the interface fourteen 53.

[0052] Among them, interface 1 41 is connected to water channel 52, responsible for the water inlet and flow of water channel 52, ensuring the cooling and temperature control of the engine. Interface 5 43, interface 6 38 are connected to interface 7 39, and are respectively connected to the cavity of the cylinder body. 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 the oil channel, providing channels for the supply and reflux of oil, ensuring the lubrication and stable operation of the engine. The supporting base plate 13 supports the basic structure of the entire oil and water detection tooling, providing a stable platform to ensure that the tooling is stable and motionless during the detection and processing process. The workpiece base plate 1 25 is mainly used to support the cylinder body parts. A sealing water tank 24 is provided on the base plate, which cooperates with the water channel 52 of the cylinder body to form a sealed environment, which can effectively perform liquid detection. The plugging head is arranged on both sides and the front side of the supporting base plate 1 13, and is controlled by the cylinder to align with the interface on the cylinder body according to the detection logic. The plugging head 17 is aligned with the interface 11 48 to control the inflow and outflow of gas. The plugging head 2 18 is aligned with the interface 9 47 and is connected with an oil circuit air intake detection connector to detect leakage in the oil circuit. The plugging head 3 19 is aligned with the interface 4 40 and is responsible for gas isolation. The plugging head 4 is aligned with the interface 3 37 to enhance the sealing effect. The plugging head 5 21 is aligned with the interface 2 42 to enhance the sealing effect. The plugging head 6 22 is aligned with the interface 1 41 to block the inflow and outflow of the water channel 52 to ensure the stability and detection accuracy of the water channel 52. The plugging head 7 23 is aligned with the interface 8 45 to ensure the airtightness of the interface. The support rod 15 is arranged on the rear side of the support base plate 1 13. It is used to support the engine cylinder block. The sealing plate 7 on the first clamping device is aligned with the cylinder block on the workpiece base plate 1 25 to block the interface 12 49 and the interface 13 50 to ensure closure and pressure stability. Effectively control leakage and reduce the impact of external interference on test results. The workpiece bottom plate 25 is responsible for closing the water channel 52 and the interface 14 53, further ensuring the tightness of the water channel 52 and the clarity of the test. Through this detailed design and precise construction, the entire device is designed to perform efficient testing of the engine cylinder block, striving to ensure sufficient sealing of liquids and gases in the internal and external environments. The coordinated work of each component not only improves the accuracy and timeliness of the test, but also increases the stability and reliability of the system.

[0053] In a preferred embodiment, Figure 3 , Fig.12 as well as Fig.14As shown, the cavity detection tooling includes a supporting base plate 2 14, a workpiece base plate 2 36, a tooling filler 59, an upper sealing filler block 26, a sealing plate 1 35, a sealing plate 2 27, a sealing head 8 34, a sealing head 9 33, a sealing head 10 32, a sealing head 11 31, a sealing head 12 30, a sealing head 13 29 and a sealing head 14 28; wherein the workpiece base plate 2 36 is connected to the middle part of the supporting base plate 2 14, the upper sealing filler block 26 is connected to the workpiece base plate 2 36, and the upper sealing filler block 26 is connected to the workpiece base plate 2 The block 26 matches the cylinder hole of the cylinder body, and the workpiece bottom plate 2 36 is used to seal the cylinder hole at the bottom of the cylinder body; the tool filling 59 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 body on the workpiece bottom plate 2 36, and the tool filling 59 is used to seal the crankcase of the engine cylinder body; the sealing plate 1 35 and the sealing plate 27 are respectively arranged on both sides of the supporting bottom 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 blocking plate 1 35 and the blocking plate 27 are aligned with the notch 44 on the cylinder; the blocking plate 1 35 is used to seal the right end face of the engine cylinder body on the workpiece bottom plate 2 36, and the blocking plate 27 is used to seal the left notch 44 of the engine cylinder body on the sealing workpiece bottom plate 2 36; the blocking head 8 34, the blocking head 9 33, the blocking head 10 32, the blocking head 11 31, the blocking head 12 30 and the blocking head 13 29 are all arranged on the front side of the supporting bottom plate 2 14, and the blocking head 8 34 is aligned with the interface Four 40 is aligned, plugging head nine 33 is aligned with interface seven 39, plugging head ten 32 is aligned with interface six 38, plugging head eleven 31 is aligned with interface two 42, plugging head twelve 30 is aligned with interface three 37, plugging head thirteen 29 is aligned with interface one 41; plugging head fourteen 28 is arranged on one side of supporting base plate two 14 and connected to the cylinder, plugging head fourteen 28 is controlled by the cylinder, plugging head fourteen 28 is aligned with interface eight 45, and plugging head ten 32 is connected with a cavity air intake detection joint.

[0054] Among them, Fig.11 and Fig.12As shown, the support base plate 2 14 is the basic component of the entire cavity detection tooling, providing support and stability, ensuring that the system does not shift or tilt during the detection process, and providing a solid installation platform for other components. The workpiece base plate 2 36 is used to seal the cylinder hole at the bottom of the cylinder body to ensure that no leakage occurs during the detection. At the same time, the structural design of the workpiece base plate 2 36 enables it to be effectively combined with other components to form a closed detection system. The upper sealing filling block 26 is connected to the workpiece base plate 2 36 and matches the cylinder hole of the cylinder body. The upper sealing filling block 26 prevents gas or liquid from leaking out of the cylinder hole during the detection process by providing a precise seal, thereby improving the accuracy and reliability of the detection. The tooling filling 59 is used to seal the crankcase in the engine cylinder body and ensure that the environment in the crankcase remains stable during the detection, thereby improving the accuracy of the detection. The two sealing plates, sealing plate 1 35 and sealing plate 2 27, are respectively connected to and controlled by the cylinder, and the sealing work is performed through the action of the cylinder. The sealing head 8 34 is used to seal the interface 4 40. The plugging head 9 33 is aligned with the interface 7 39 to plug the interface 7 39, and the plugging head 10 32 is aligned with the interface 6 38 to control the sealing state with the cylinder body. The cavity air inlet detection joint on the plugging head 10 32 can fill the cavity with gas through the plugging head 10 32. The plugging head 11 31 is used to plug the interface 2 42. The plugging head 12 30 is aligned with the interface 3 37 to provide additional sealing support. The plugging head 13 29 is aligned with the interface 1 41 to control the inflow and outflow of the waterway 52. ​​The plugging head 14 28 is located on one side of the supporting base plate 2 14, connected to the cylinder, and used to close the connection with the interface 8 45,

[0055] In a preferred embodiment, a typing head clamp is connected to the rear side of the supporting base plate 13, and the typing head clamp is connected to and controlled by the impact cylinder. The typing head clamp is used to clamp the typing head and print a mark on the cylinder body through the typing head.

[0056] In a preferred embodiment, the plugging head 17, the plugging head 2 18, the plugging head 3 19, the plugging head 4 20, the plugging head 5 21, the plugging head 6 22, the plugging head 7 23, the plugging head 8 34, the plugging head 9 33, the plugging head 10 32, the plugging head 11 31, the plugging head 12 30, the plugging head 13 29 and the plugging head 14 28 are respectively connected to the cylinder through connecting pieces, such as Fig.10As shown, the connecting member includes 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 arranged 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, a spring 54 is sleeved on the top side of the movable rod 55, and the top of the movable rod 55 is connected to the plugging head. wherein, the connecting member is used to ensure that the plugging head can be effectively sealed and connected with each interface, specifically, when in use, the cylinder controls the plugging head to approach the interface, and during the approaching process, the plugging head drives the movable rod 55 to move into the movable cavity 58 and compresses the spring 54, thereby ensuring a certain flexibility between the plugging head and the interface, and even if the engine shakes, the plugging head can still seal the interface. the sleeve 57 on the outside of the connecting block 56 is to protect the movable rod 55 and the spring 54.

[0057] In a preferred embodiment, both sides of the top of the sealing plate 7 are fixed with limit rods, which are movably connected to the mounting plate. The setting of the limit rods enables 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.

[0058] An engine cylinder block processing leak testing method, used in an engine cylinder block processing leak testing automation mechanism, includes the following methods:

[0059] S1, the engine block is transferred to the leak test automation mechanism via the feeding conveyor roller; this link is the beginning of the entire testing process, ensuring that the engine block can be smoothly transferred to the testing equipment and prepare for subsequent testing.

[0060] S2, the first clamping device clamps the engine cylinder body on the loading conveying roller and drives it to the oil and water detection tooling; the second clamping device clamps the engine cylinder body that has been inspected on the oil and water detection tooling and drives it to the cavity detection tooling; the third clamping device clamps the engine cylinder body that has been inspected on the cavity detection device and drives it to the unloading conveying roller; this step realizes the automatic transfer of the engine cylinder body through the orderly operation of multiple clamping devices, ensures the continuity and efficiency of the detection process, reduces manual intervention, and reduces operational risks.

[0061] S3, control all cylinder telescopic rods connected to the plugging heads and the plugging plates to extend, control the first lifting cylinder 3 in the first clamping device and the second clamping device to extend and drive the sealing plates 7 in the first clamping device and the second clamping device to press on the engine cylinder body; seal the upper and lower end surfaces of the engine cylinder body on the oil-water detection tooling through the sealing plate 7 in the first clamping device and the workpiece bottom plate 25 and the interfaces and water channels 52 on the upper and lower end surfaces, and connect the plugging heads in the oil-water detection tooling to the joints on the engine cylinder body and seal the oil path and water channel; The top of the crankcase of the engine block on the sealing cavity detection tooling is sealed through the sealing plate 7 in the second clamping device and the tooling filling 59, and the water channel 52 of the engine block on the sealing cavity detection tooling is sealed through the workpiece bottom plate 36; the cavity of the engine block is blocked by the various sealing heads and sealing plates in the cavity detection tooling in cooperation with the joints and notches 44 on the engine block; through this link, the oil and water detection tooling and the cavity detection tooling can form a complete sealing system to prevent gas or liquid leakage and ensure the accuracy and safety of the detection.

[0062] S4, fill gas into the engine cylinder water channel 52 on the workpiece bottom plate 1 25 through the water channel 52 air intake detection joint; fill gas into the engine cylinder oil channel on the workpiece bottom plate 1 25 through the oil channel air intake detection joint; fill gas into the engine cylinder cavity of the workpiece bottom plate 2 36 through the cavity air intake detection joint; this procedure creates pressure by filling gas into the engine cylinder, so that the cylinder can be detected for leakage through the generation of bubbles later. This method can quickly and effectively determine the integrity of the cylinder.

[0063] S5, raise the water tank 11 through the second lifting cylinder 12, use the water in the water tank 11 to submerge the two engine cylinders to be tested, and observe whether bubbles are generated on the two engine cylinders. If bubbles are generated on the engine cylinder body, it means that there is a leak there; this key detection link can intuitively display the leak point of the cylinder body, and determine the possible leak point on the cylinder body by the location where the bubbles are generated, ensuring that the quality of each cylinder body is controllable. This key detection link can intuitively display the leak point of the cylinder body, and determine the sealing and leak point location of the cylinder body by the generation or disappearance of bubbles, ensuring that the quality of each cylinder body is controllable.

[0064] S6, the water tank 11 is lowered by the second lifting cylinder 12, and the water on the engine cylinder body is waited for three minutes to flow into the water tank 11; the first clamping device clamps and drives the engine cylinder body on the feeding conveying roller to the oil and water detection tooling; the second clamping device clamps and drives the engine cylinder body that has been inspected on the oil and water detection tooling to the cavity detection tooling; the third clamping device clamps and drives the engine cylinder body that has been inspected on the cavity detection device to the unloading conveying roller. This link not only completes the transfer of the cylinder body after inspection, ensuring the efficient operation of the assembly line, but also can control the water flow and inspection environment in the water tank, providing sufficient space and conditions for subsequent cylinder body preparation.

[0065] In a preferred embodiment, in S2, the first clamping device, the second clamping device and the third clamping device are started synchronously. By starting synchronously, the three clamping devices can work together to ensure that different cylinders are processed at the same time, which greatly improves work efficiency. In an automated production environment, it is very important to ensure the continuous operation of the production line. The synchronous start of the clamping devices can avoid the stagnation of the production line caused by transportation delays, and maintain the smoothness and stability of production.

[0066] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0067] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated leak testing mechanism for engine cylinder block processing, characterized in that: It includes a transmission mechanism and a leak test mechanism; the leak test mechanism includes an oil and water detection tool, a cavity detection tool and a gas leakage observation device; The oil and water detection tool is used to block the oil and water channels of the cylinder body and pressurize the oil and water channels; the cavity detection tool is used to detect the cylinder cavity; the air leakage observation device is used to observe the air leakage part of the cylinder body; The transmission mechanism includes a first clamping device, a second clamping device and a third clamping device. The first clamping device clamps the uninspected cylinder body and places it on the oil-water inspection tooling. The second clamping device is used to transfer the cylinder body that has been inspected on the oil-water inspection tooling to the cavity inspection tooling. The third clamping device is used to take away the cylinder body that has been inspected on the cavity inspection tooling. The oil-water inspection tooling and the cavity inspection tooling work synchronously, and the first clamping device, the second clamping device and the third clamping device work synchronously.

2. The engine cylinder block processing leak test automation mechanism according to claim 1, characterized in that: A first track is arranged above the oil-water detection tooling and the cavity detection tooling, and the first clamping device, the second clamping device and the third clamping device are all slidably connected to the first track; The first clamping device, the second clamping device and the third clamping device are connected together via a connecting rod (4); the first clamping device, the second clamping device and the third clamping device have the same structure, and all include a sealing plate (7), a slider, a connecting plate (2), a first lifting cylinder (3), a clamping cylinder (5) and a clamping claw (6); the slider is fixedly connected to the connecting plate (2), the slider is slidably connected to the first track, 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), 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); 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.

3. The engine cylinder block processing leak test automation mechanism according to claim 2, characterized in that: The air leakage observation device comprises a column (10), a water tank (11), a second track (8), a roller (9) and a second lifting cylinder (12); wherein two water tanks (11) are provided, the water tank (11) is provided below the oil-water detection tooling and the cavity detection tooling, the roller (9) is connected to the water tank (11), the second track (8) is fixed to the column (10), the roller (9) is slidably connected to the second track (8), and the second lifting cylinder (12) is connected to the water tank (11).

4. The engine cylinder block processing leak test automation mechanism according to claim 3, characterized in that: The cylinder body of the engine is provided with an interface 1 (41), an interface 2 (42), an interface 3 (37), an interface 4 (40), an interface 5 (43), an interface 6 (38), an interface 7 (39), an interface 8 (45), an interface 9 (47), an interface 10 (46), an interface 11 (48), an interface 12 (49), an interface 13 (50), an interface 14 (53) and a water channel (52); wherein the interface 1 (41) is connected to the water channel (52), the interface 5 (43), the interface 6 (38) and the interface 7 (39) are all connected to the cylinder body cavity, notches (44) are provided on both sides of the cylinder body cavity, and the interface 2 (42), the interface 3 (37), the interface 4 (40), the interface 8 (45), the interface 9 (47), the interface 10 (46), the interface 11 (48), the interface 12 (49), the interface 13 (50) and the interface 14 (53) are all connected to the oil channel; The oil-water detection tooling comprises a supporting base plate (13), a workpiece base plate (25), a plugging head (17), a plugging head (18), a plugging head (19), a plugging head (20), a plugging head (21), a plugging head (22), a plugging head (23) and a supporting rod (15); wherein the workpiece base plate (25) is connected to the middle part of the supporting base plate (13), a sealing water tank (24) is arranged on the workpiece base plate (25), the sealing water tank (24) cooperates with a water channel (52) on a cylinder body, and the workpiece base plate (25) is connected to the middle part of the supporting base plate (13). An air inlet 1 is arranged on one side of the supporting bottom plate 1 (25), and the air inlet 1 is communicated with the sealing water tank (24); a plugging head 1 (17), a plugging head 2 (18) and a plugging head 7 (23) are arranged on both sides of the supporting bottom plate 1 (13), the plugging head 1 (17), the plugging head 2 (18) and the plugging head 7 (23) are respectively connected to the cylinder and controlled by the cylinder, the plugging head 1 (17) is aligned with the interface 11 (48), the plugging head 2 (18) is aligned with the interface 9 (47), and the plugging head 7 (23) is aligned with the interface 8 (45); the plugging heads 3 (19), The plugging head four (20), the plugging head five (21) and the plugging head six (22) are arranged on the front side of the supporting bottom plate one (13); the plugging head three (19), the plugging head four (20), the plugging head five (21) and the plugging head six (22) are respectively connected to the cylinder and controlled by the cylinder; the plugging head three (19) is aligned with the interface four (40); the plugging head four (20) is aligned with the interface three (37); the plugging head five (21) is aligned with the interface two (42); and the plugging head six (22) is aligned with the interface one (41); the support rod (15) is arranged The rear side of the support base plate 1 (13) is connected to the cylinder, and the support rod (15) is controlled by the cylinder; the sealing head 2 (18) is connected to the oil circuit air intake detection joint, and the air intake 1 of the workpiece base plate 1 (25) is connected to the water channel (52) air intake detection joint; the sealing plate (7) on the first clamping device is aligned with the cylinder body on the workpiece base plate 1 (25), the sealing plate (7) on the first clamping device is used to seal the interface 12 (49) and the interface 13 (50), and the workpiece base plate 1 (25) is used to seal the water channel (52) and the interface 14 (53).

5. The engine cylinder block processing leak test automation mechanism according to claim 4, characterized in that: The mold cavity detection tooling comprises a supporting base plate 2 (14), a workpiece base plate 2 (36), a tooling filler (59), an upper sealing filler block (26), a sealing plate 1 (35), a sealing plate 2 (27), a sealing head 8 (34), a sealing head 9 (33), a sealing head 10 (32), a sealing head 11 (31), a sealing head 12 (30), a sealing head 13 (29) and a sealing head 14 (28); wherein the workpiece base plate 2 (36) is connected to the middle part of the supporting base plate 2 (14), the upper sealing filler block (26) is connected to the workpiece base plate 2 (36), and the upper sealing filler block (26) is connected to the workpiece base plate 2 (36). The block (26) matches the cylinder hole of the cylinder body, and the workpiece bottom plate (36) is used to seal the cylinder hole at the bottom of the cylinder body; the tool filling (59) 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 body on the workpiece bottom plate (36), and the tool filling (59) is used to seal the crankcase of the engine cylinder body; the sealing plate (35) and the sealing plate (27) are respectively arranged on both sides of the supporting bottom plate (14), and the sealing plate (35) and the sealing plate (27) are respectively connected to the cylinder and controlled by the cylinder, and the sealing plate (35) and the sealing plate (27) are respectively connected to the cylinder and controlled by the cylinder. (35) is aligned with the sealing plate 2 (27) and the notch (44) on the cylinder; the sealing plate 1 (35) is used to seal the right end face of the engine cylinder body on the workpiece bottom plate 2 (36), and the sealing plate 2 (27) is used to seal the left notch (44) of the engine cylinder body on the sealing workpiece bottom plate 2 (36); the sealing head 8 (34), the sealing head 9 (33), the sealing head 10 (32), the sealing head 11 (31), the sealing head 12 (30) and the sealing head 13 (29) are all arranged on the front side of the supporting bottom plate 2 (14), and the sealing head 8 (34) is aligned with the interface 4 (40 ) are aligned, the plugging head nine (33) is aligned with the interface seven (39), the plugging head ten (32) is aligned with the interface six (38), the plugging head eleven (31) is aligned with the interface two (42), the plugging head twelve (30) is aligned with the interface three (37), and the plugging head thirteen (29) is aligned with the interface one (41); the plugging head fourteen (28) is arranged on one side of the supporting base plate two (14) and is connected to the cylinder, the plugging head fourteen (28) is controlled by the cylinder, the plugging head fourteen (28) is aligned with the interface eight (45), and the plugging head ten (32) is connected to a cavity air intake detection joint.

6. The engine cylinder block processing leak test automation mechanism according to claim 5, characterized in that: The rear side of the supporting base plate 1 (13) is connected with a typing head clamp, which is connected to and controlled by an impact cylinder to perform typing marking on qualified products after leak testing.

7. The engine cylinder block processing leak test automation mechanism according to claim 6, characterized in that: The plugging head one (17), the plugging head two (18), the plugging head three (19), the plugging head four (20), the plugging head five (21), the plugging head six (22), the plugging head seven (23), the plugging head eight (34), the plugging head nine (33), the plugging head ten (32), the plugging head eleven (31), the plugging head twelve (30), the plugging head thirteen (29) and the plugging head fourteen (28) are respectively connected to the cylinder through a connecting piece, and the connecting piece includes 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, a sleeve (57) is sleeved on the outside of the connecting block (56), a movable cavity (58) is arranged in the top side of the connecting block (56), a bottom side of the movable rod (55) is movably connected in the movable cavity (58), a spring (54) is sleeved on the top side of the movable rod (55), and the top of the movable rod (55) is connected to the plugging head.

8. The engine cylinder block processing leak test automation mechanism according to claim 7, characterized in that: Limit rods are fixedly connected to both sides of the top of the sealing plate (7), and the limit rods are movably connected to the mounting plate.

9. An engine cylinder processing leak testing method, used in an engine cylinder processing leak testing automation mechanism according to any one of claims 1 to 8, characterized in that: The following methods are included: S1, the engine cylinder body is transferred to the leak test automation mechanism via the feeding conveyor roller; S2, the first clamping device clamps and drives the engine cylinder body on the feeding conveying roller to the oil and water detection tooling; the second clamping device clamps and drives the engine cylinder body that has been inspected on the oil and water detection tooling to the cavity detection tooling; the third clamping device clamps and drives the engine cylinder body that has been inspected on the cavity detection device to the unloading conveying roller; S3, control all cylinder telescopic rods connected to the plugging heads and the plugging plates to extend, control the first lifting cylinder (3) in the first clamping device and the second clamping device to extend and drive the sealing plates (7) in the first clamping device and the second clamping device to press on the engine cylinder body; seal the upper and lower end surfaces of the engine cylinder body on the oil and water detection tooling and the interfaces and water channels (52) on the upper and lower end surfaces through the sealing plate (7) in the first clamping device and the workpiece bottom plate one (25), connect the plugging heads in the oil and water detection tooling with the joints on the engine cylinder body and seal the oil channel and water channel (52); seal the crankcase top of the engine cylinder body on the cavity detection tooling through the sealing plate (7) in the second clamping device and the tooling filling (59), and seal the water channel (52) of the engine cylinder body on the cavity detection tooling through the workpiece bottom plate two (36); seal the cavity of the engine cylinder body through the plugging heads and the plugging plates in the cavity detection tooling and the joints and notches (44) on the engine cylinder body; S4, filling gas into the engine cylinder water channel (52) on the workpiece bottom plate 1 (25) through the water channel (52) air intake detection joint; filling gas into the engine cylinder oil channel on the workpiece bottom plate 1 (25) through the oil channel air intake detection joint; filling gas into the engine cylinder mold cavity of the workpiece bottom plate 2 (36) through the mold cavity air intake detection joint; S5, raising the water tank (11) by means of the second lifting cylinder (12), submerging the two engine cylinders to be tested with the water in the water tank (11), and observing whether bubbles are generated on the two engine cylinders. If bubbles are generated on the engine cylinder body, it indicates that there is a gas leak at that location, and the specific location of the product leakage can also be determined; S6, the water tank (11) is lowered by the second lifting cylinder (12), and the water on the engine cylinder body is waited for three minutes to flow into the water tank (11); the first clamping device clamps the engine cylinder body on the loading conveying roller and drives it to the oil and water detection tooling; the second clamping device clamps the engine cylinder body that has been inspected on the oil and water detection tooling and drives it to the cavity detection tooling; the third clamping device clamps the engine cylinder body that has been inspected on the cavity detection device and drives it to the unloading conveying roller.

10. The engine cylinder block processing leak testing method according to claim 9, characterized in that: In S2, the first clamping device, the second clamping device and the third clamping device are started synchronously.

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