Engine cylinder block air tightness detection device and method

Abstract

The application provides an engine cylinder body airtightness detection equipment and method, which comprises a bed body support, an engine cylinder body conveying and blocking mechanism arranged on the bed body support, a two-section lifting mechanism below an initial position of an engine cylinder body supporting plate, an engine cylinder body guiding mechanism on one side of the initial position of the engine cylinder body supporting plate, and a control cabinet connected with the engine cylinder body conveying and blocking mechanism, the two-section lifting mechanism and the engine cylinder body guiding mechanism respectively, wherein the control cabinet comprises a leak detector, the leak detector is connected with the engine cylinder body conveying and blocking mechanism in a matched mode, and the two-section lifting mechanism comprises a roller supporting cylinder body lifting mechanism and a cylinder body guiding lifting mechanism driven by the same lifting cylinder and arranged in a matched mode. Through the technical scheme, the engine cylinder body can be lowered onto the engine cylinder body supporting plate for measurement and detection, and then flow out, without manual carrying, small floor space, multiple leak detection projects on one station, and high work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts detection equipment, in particular to an engine cylinder body air tightness detection equipment and method. BACKGROUND

[0002] In the related art, engine cylinder body air tightness detection is generally realized through water leak detection, single machine leak detection and multi-station online leak detection, which has the following technical defects:

[0003] (1) The water leak detection efficiency is low.

[0004] (2) The single machine leak detection needs to manually carry the engine cylinder body to the equipment, start the equipment for leak detection, and then manually carry the workpiece out after the leak detection is completed. Since the engine cylinder body is heavy, manual feeding and discharging is not convenient, the work intensity is large, and the equipment cannot be used in the production roller line, which is not suitable for mass production requirements.

[0005] (3) The multi-station online leak detection detects multiple leak detection items of the engine cylinder body on multiple stations, which has high equipment cost and large floor area. When the leak detection equipment fails, the production of the entire production line will be affected. SUMMARY

[0006] The present application aims to at least solve one of the technical problems in the prior art or related art.

[0007] To this end, one object of the present application is to provide an engine cylinder body air tightness detection equipment and method, which can be installed in a production roller line, the engine cylinder body can flow into the equipment through the roller line, and through the unique design of the two-section lifting mechanism and the engine cylinder body guide mechanism, the engine cylinder body can be lowered onto the engine cylinder body supporting plate for measurement and detection, and then flow out, without manual carrying, greatly reducing the labor intensity, and having small floor area. Multiple leak detection items can be performed on one station, the work efficiency is high, the equipment is easy to use, the detection data can be stored for easy traceability and searching.

[0008] In order to achieve the above object, the technical scheme of the present application provides an engine cylinder body air tightness detection equipment, comprising: a bed body support; an engine cylinder body conveying and blocking mechanism arranged on the bed body support, the engine cylinder body conveying and blocking mechanism comprising a workbench bottom plate mounted on the bed body support and an engine cylinder body supporting plate arranged on the workbench bottom plate; a two-section lifting mechanism arranged on the bed body support and located directly below the initial position of the engine cylinder body supporting plate; an engine cylinder body guiding mechanism arranged on the bed body support and located on one side of the initial position of the engine cylinder body supporting plate; a control electric cabinet connected with the engine cylinder body conveying and blocking mechanism, the two-section lifting mechanism and the engine cylinder body guiding mechanism, the control electric cabinet comprising a leak detector, the leak detector being connected with the engine cylinder body conveying and blocking mechanism in a matched manner to detect the air tightness of the engine cylinder body, the two-section lifting mechanism comprising a fixed plate mounted below the workbench bottom plate, a roller supporting cylinder body lifting mechanism and a cylinder body guiding lifting mechanism driven by the same lifting cylinder and arranged in a matched manner, the lifting cylinder being fixedly mounted below the workbench bottom plate, the roller supporting cylinder body lifting mechanism comprising: a lifting supporting plate connected with the lifting cylinder and located below the fixed plate; a roller supporting plate connected with the lifting supporting plate through a first supporting and guiding column, the roller supporting plate being located between the fixed plate and the workbench bottom plate; a plurality of first rollers respectively mounted on both sides of the roller supporting plate through connecting rods, the connecting rods penetrating through the workbench bottom plate; and the cylinder body guiding lifting mechanism comprising: a guiding supporting plate located between the fixed plate and the roller supporting plate; a guiding bottom plate connected with the guiding supporting plate through a second supporting and guiding column, the guiding bottom plate being connected with the lifting supporting plate through a spring; and a plurality of guiding rods respectively mounted on both sides of the lifting supporting plate, the guiding rods penetrating through the workbench bottom plate.

[0009] Preferably, a spring mounting plate is fixedly connected below the lifting supporting plate, a spring mounting groove is arranged on the spring mounting plate, the bottom end of the spring is fixed in the spring mounting groove, the top end of the spring is connected with a limiting rod mounted on the guiding bottom plate, a limiting nut is sleeved on the limiting rod, and the limiting nut is located between the guiding bottom plate and the fixed plate; when the guiding supporting plate and the roller supporting plate are at the initial highest point, the spring is in a compressed state, and the roller supporting plate is spaced apart from the guiding supporting plate; the position of the limiting nut is adjusted to be in contact with the fixed plate, so that the distance between the roller supporting plate and the guiding supporting plate is controlled to be 10-20 mm, and the top end of the first roller is higher than the top end of the guiding rod.

[0010] Preferably, the guiding rods and the connecting rods are arranged in a staggered manner.

[0011] Preferably, the engine cylinder guiding mechanism comprises: a fixed support installed on the workbench bottom plate; a roller mounting plate installed on the fixed support, a plurality of second rollers are installed inside the two side plates of the roller mounting plate, corresponding to the engine cylinder support plate in the initial position; a first linear guide rail installed on the roller mounting plate; a guide rod, the bottom of the guide rod is provided with a sliding block, and the sliding block is in sliding connection with the first linear guide rail, and the guide rod is directed towards the engine cylinder support plate in the initial position; and a telescopic air cylinder installed on the fixed support and connected with the guide rod to drive the guide rod to move.

[0012] Preferably, the engine cylinder guiding mechanism further comprises: a rotating air cylinder and a blocking block installed on one side of the fixed support to position the engine cylinder.

[0013] Preferably, two engine cylinder guiding mechanisms are symmetrically installed on both sides of the initial position of the engine cylinder support plate.

[0014] Preferably, the engine cylinder conveying and blocking mechanism further comprises: two second linear guide rails installed on the workbench bottom plate, the engine cylinder support plate is installed on the second linear guide rails to move along the second linear guide rails; a driving air cylinder installed on the workbench bottom plate and connected with the engine cylinder support plate to drive the engine cylinder support plate to move along the second linear guide rails; a workbench top plate connected with the workbench bottom plate through a third supporting guide column; a pressing air cylinder installed below the workbench top plate; a top surface blocking structure sleeved on the third supporting guide column and connected with the pressing air cylinder, the pressing air cylinder drives the top surface blocking structure to block the top surface of the engine cylinder; and a side surface blocking mechanism arranged outside the second linear guide rails to block the side surface of the engine cylinder.

[0015] Preferably, the engine cylinder conveying and blocking mechanism further comprises: a support plate limiting mechanism installed on the workbench bottom plate and located at the terminal end of the second linear guide rails to limit the measuring position of the engine cylinder support plate; a code scanning camera installed on the workbench bottom plate and located at the terminal end of the second linear guide rails to read the engine cylinder information after the engine cylinder reaches the measuring position; and a marking mechanism installed on the workbench bottom plate and located at the terminal end of the second linear guide rails to mark the engine cylinder after the test is completed.

[0016] Preferably, the engine cylinder airtightness detection equipment further comprises: a detection switch installed on the workbench bottom plate and facing the initial position of the engine cylinder support plate to detect whether the engine cylinder enters the work station of the two-section lifting mechanism; a protective shell installed on the bed body support, and the engine cylinder conveying and blocking mechanism is located inside the protective shell; a safety light curtain installed on the protective support of the protective shell; and a movable base provided at the bottom of the control electric cabinet to drive the control electric cabinet to move.

[0017] The technical scheme of the application further provides an engine cylinder airtightness detection method, which adopts the engine cylinder airtightness detection equipment in the technical scheme and comprises the following steps.

[0018] The telescopic air cylinder in the engine cylinder guide mechanism is controlled to push the guide rod to extend, so that the engine cylinder is pushed into the two-section lifting mechanism along the guide rod and the second roller of the engine cylinder guide mechanism from the feeding channel;

[0019] The rotating air cylinder drives the blocking block to rotate to the blocking position to block and position the engine cylinder;

[0020] The start button is pressed, the lifting air cylinder extends, the roller support cylinder lifting mechanism descends, and the cylinder guide lifting mechanism remains in the original position under the action of the spring to guide the engine cylinder;

[0021] The lifting air cylinder drives the roller support plate to descend, the first roller on the roller support plate drives the engine cylinder to descend, and when the roller support plate descends to the lowest point, the engine cylinder falls onto the engine cylinder support plate;

[0022] The rotating air cylinder drives the blocking block to rotate away from the blocking position, the driving air cylinder drives the engine cylinder support plate and the engine cylinder to move to the measurement position;

[0023] The code scanning camera reads the two-dimensional code on the engine cylinder;

[0024] The pressing air cylinder is pressed down to drive the top blocking structure to press down and press the engine cylinder onto the engine cylinder support plate, and the top and bottom are blocked at the same time;

[0025] The side blocking mechanism is controlled to block the side hole and the lap joint position;

[0026] The test circuit electromagnetic valve is controlled to start to switch in turn to test the sealing performance of the three cavities in turn;

[0027] After the detection is completed, if the detection is qualified, the marking device is controlled to mark the engine cylinder, and the engine cylinder conveying and blocking mechanism is reset; if the detection is unqualified, the audible and visual alarm is controlled to sound and light;

[0028] The driving cylinder drives the engine cylinder body support plate and the engine cylinder body to move above the two-section lifting mechanism;

[0029] The lifting cylinder drives the roller support plate to ascend, and the engine cylinder body is lifted away from the engine cylinder body support plate through the first roller on the roller support plate; when the limiting nut contacts the fixed plate, the cylinder guiding lifting mechanism stops ascending, and the roller supporting cylinder lifting mechanism continues to ascend until the highest point.

[0030] The engine cylinder body is pushed into the discharging channel along the guide rod and the second roller of the engine cylinder body guiding mechanism.

[0031] The engine cylinder body air tightness detection equipment and method have the following beneficial technical effects:

[0032] (1) The engine cylinder body air tightness detection equipment and method can test the high-pressure oil channel, the water jacket and the low-pressure oil channel of the engine cylinder body in the same station in the production roller line, without manual carrying, greatly reducing the labor intensity, and facilitating the storage of detection data and the traceability search.

[0033] (2) The engine cylinder body air tightness detection equipment has small area, compact structure, convenient use, high production efficiency, stable and reliable test quality, can be automatically operated, simultaneously blocked, gradually detected, one-key completion of all cavity detection, and can switch channels to detect a single cavity, which is convenient and fast, saves time, has high production efficiency, can be used in the production roller line, and is convenient to separate from the production roller line, even if the equipment fails, it can be removed relatively conveniently, and does not affect the normal operation of the production line.

[0034] (3) The engine cylinder body air tightness detection equipment can make the engine cylinder body fall on the engine cylinder body support plate for measurement and detection, and then flow out, which is convenient and fast, and has high placement position accuracy, without manual carrying, greatly reducing the labor intensity and improving the automation level.

[0035] (4) The two-section lifting mechanism in the engine cylinder body air tightness detection equipment includes a roller supporting cylinder body lifting mechanism and a cylinder body guiding lifting mechanism, the two mechanisms are connected through a spring and driven by the same lifting cylinder, when the roller supporting cylinder body lifting mechanism starts to descend, the cylinder body guiding lifting mechanism keeps the original position under the action of the spring, so that the guide rod is higher than the roller position, and the engine cylinder body is guided, and the accuracy of the engine cylinder body placement position is further ensured, and when the roller supporting cylinder body lifting mechanism and the cylinder body guiding lifting mechanism are at the initial highest point, the top end of the roller supporting cylinder body lifting mechanism is higher than the top end of the cylinder body guiding lifting mechanism, so that the engine cylinder body can be fed and discharged through the roller.

[0036] (5) The engine cylinder body guiding mechanism in the engine cylinder body air tightness detection equipment is provided with rollers and guide rods, so that the engine cylinder body can be transferred from a production roller line to the two-section lifting mechanism, and the engine cylinder body can fall onto the engine cylinder body supporting plate.

[0037] (6) The engine cylinder body guiding mechanism in the engine cylinder body air tightness detection equipment is provided with rotating cylinders and blocking blocks, so that the engine cylinder body can be blocked and positioned when falling under the driving of the two-section lifting mechanism, and the engine cylinder body can be accurately positioned and sold on the engine cylinder body supporting plate.

[0038] (7) The engine cylinder body conveying and blocking mechanism in the engine cylinder body air tightness detection equipment is provided with a supporting plate limiting mechanism, a detection switch, a code scanning camera, a marking mechanism and the like, so that the engine cylinder body supporting plate can be accurately stopped at the test position, the engine cylinder body position is fixed, the blocking deviation is avoided, the code scanning camera can read the two-dimensional code of the engine cylinder body, the leak test information data and the engine cylinder body are correspondingly stored, and data information tracing is facilitated.

[0039] Additional aspects and advantages of the present application will be described in the following description part, some of which will become apparent from the following description, or will be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0040] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0041] Figure 1 A structural schematic diagram of an engine cylinder body air tightness detection equipment according to one embodiment of the present application is shown;

[0042] Figure 2 A front view structural schematic diagram of an engine cylinder body air tightness detection equipment according to one embodiment of the present application is shown;

[0043] Figure 3 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0044] Figure 4 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0045] Figure 5 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0046] Figure 6 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0047] Figure 7 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0048] Figure 8 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0049] Figure 9 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0050] Figure 10 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0051] Figure 11 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0052] Figure 12 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figure 1 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0053] Figure 13 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0054] A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. Figures 1 to 13 A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment. A structure diagram of a two-section lifting mechanism in a state of lifting is shown in the engine cylinder body air tightness detection equipment.

[0055] 10 bed body support, 20 engine cylinder conveying plugging mechanism, 201 workbench bottom plate, 202 engine cylinder supporting plate, 203 second linear guide rail, 204 driving air cylinder, 205 workbench top plate, 206 third supporting guide column, 207 pressing air cylinder, 208 top surface plugging structure, 209 side surface plugging mechanism, 210 supporting plate limiting mechanism, 211 code scanning camera, 212 marking mechanism, 30 two-section lifting mechanism, 302 fixed plate, 304 roller supporting cylinder lifting mechanism, 3041 lifting supporting plate, 3042 roller supporting plate, 3043 first supporting guide column, 3044 first roller, 3045 connecting rod, 3046 spring mounting plate, 3047 spring mounting groove, 306 cylinder guiding lifting mechanism, 3061 guiding supporting plate, 3062 guiding bottom plate, 3063 second supporting guide column, 3064 guiding rod, 3065 limiting rod, 3066 limiting nut, 308 lifting air cylinder, 310 spring, 40 engine cylinder guiding mechanism, 401 fixed support, 402 roller mounting plate, 403 second roller, 404 first linear guide rail, 405 guiding rod, 406 telescopic air cylinder, 407 rotating air cylinder, 408 blocking block, 50 control cabinet, 501 leak detector, 502 cabinet body, 503 operation button and indicator light, 504 HMI, 505 air source pressure sensor, 506 alarm light, 60 protective shell, 70 start button, 80 movable base, 801 movable roller, 90 safety light curtain, 100 engine cylinder, 110 detection switch. DETAILED DESCRIPTION

[0056] In order to enable anyone skilled in the art to better understand the above-mentioned objects, features and advantages of the present application, the application will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0057] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the application, but the application can also be implemented in other ways different from those described herein, and therefore the scope of protection of the application is not limited by the specific embodiments disclosed below.

[0058] The application will be described below in conjunction with Figures 1 to 13 An engine cylinder air tightness detection device and method according to an embodiment of the present application will be described in detail.

[0059] As Figures 1 to 13As shown, the engine cylinder 100 air tightness detection equipment according to the embodiment of the application comprises a bed body support 10, an engine cylinder conveying and blocking mechanism 20, a two-section lifting mechanism 30, an engine cylinder guiding mechanism 40, a control electric cabinet 50 and the like. The engine cylinder conveying and blocking mechanism 20 is arranged on the bed body support 10, and comprises a workbench bottom plate 201 arranged on the bed body support 10 and an engine cylinder supporting plate 202 arranged on the workbench bottom plate 201. The two-section lifting mechanism 30 is arranged on the bed body support 10 and is directly below the initial position of the engine cylinder supporting plate 202. The engine cylinder guiding mechanism 40 is arranged on the bed body support 10 and is on one side of the initial position of the engine cylinder supporting plate 202. The control electric cabinet 50 is connected with the engine cylinder conveying and blocking mechanism 20, the two-section lifting mechanism 30 and the engine cylinder guiding mechanism 40 respectively, and comprises a leak detector 501 connected with the engine cylinder conveying and blocking mechanism 20 in a matched mode to detect the air tightness of the engine cylinder 100. Thus, the high-pressure oil channel, the water jacket and the low-pressure oil channel of the engine cylinder 100 can be respectively tested at the same station in the production roller line without manual carrying, so that the labor intensity is greatly reduced. Moreover, the engine cylinder air tightness detection equipment has the advantages of small floor area, compact structure, convenient use, high production efficiency, stable and reliable test quality, automatic operation, simultaneous blocking, gradual detection, one-key completion of detection of all cavities, switching of channels for detection of single cavities, time saving, high production efficiency, use in the production roller line, convenient separation from the production roller line, easy removal in case of equipment failure and no influence on normal operation of the production line.

[0060] As shown in the figure, Figures 3 to 7 The two-section lifting mechanism 30 comprises a fixed plate 302, a roller supporting cylinder lifting mechanism 304, a cylinder guiding lifting mechanism 306 and a lifting cylinder 308. The fixed plate 302 is arranged below the workbench bottom plate 201. The roller supporting cylinder lifting mechanism 304 and the cylinder guiding lifting mechanism 306 are arranged in a matched mode and are driven by the same lifting cylinder 308. The lifting cylinder 308 is fixedly arranged below the workbench bottom plate 201.

[0061] The roller supporting cylinder body lifting mechanism 304 comprises a lifting supporting plate 3041, a roller supporting plate 3042, a plurality of first rollers 3044, etc. The lifting supporting plate 3041 is connected with the lifting cylinder 308 and moves up and down under the driving of the lifting cylinder 308, and the lifting supporting plate 3041 is below the fixed plate 302. The roller supporting plate 3042 is connected with the lifting supporting plate 3041 through the first supporting guide column 3043, the roller supporting plate 3042 is between the fixed plate 302 and the workbench bottom plate 201, moves up and down along with the lifting supporting plate 3041, and the first supporting guide column 3043 can pass through the fixed plate 302. The plurality of first rollers 3044 are respectively installed on both sides of the roller supporting plate 3042 through the connecting rods 3045, the connecting rods 3045 pass through the workbench bottom plate 201, and the first rollers 3044 can move up and down along with the roller supporting plate 3042, thereby driving the engine cylinder body 100 to fall onto the engine cylinder body supporting plate 202 or lift the engine cylinder body 100 away from the engine cylinder body supporting plate 202.

[0062] The cylinder body guiding lifting mechanism 306 comprises a guiding supporting plate 3061, a guiding bottom plate 3062, a plurality of guiding rods 3064, etc. The guiding supporting plate 3061 is between the fixed plate 302 and the roller supporting plate 3042, the guiding bottom plate 3062 is connected with the guiding supporting plate 3061 through the second supporting guide column 3063, the guiding bottom plate 3062 is connected with the lifting supporting plate 3041 through the spring 310, the plurality of guiding rods 3064 are respectively installed on both sides of the lifting supporting plate 3041, and the guiding rods 3064 pass through the workbench bottom plate 201 and can move up and down along with the lifting supporting plate 3041. Under the action of the spring 310, the movement of the guiding rods 3064 is delayed, that is, when the lifting cylinder starts to extend, the roller supporting cylinder body lifting mechanism 304 starts to descend, the cylinder body guiding lifting mechanism 306 remains in the original position under the action of the spring 310, so that the guiding rods 3064 are higher than the roller position, the guiding rods 3064 play a guiding role on the engine cylinder body 100, and the accuracy of the placement position of the engine cylinder body 100 is further ensured. When the roller supporting cylinder body lifting mechanism 304 and the cylinder body guiding lifting mechanism 306 are at the initial highest point, the top end of the roller supporting cylinder body lifting mechanism 304 is higher than the top end of the cylinder body guiding lifting mechanism 306, so that the engine cylinder body 100 can be fed and discharged through the rollers.

[0063] Further, as shown in FIG. 6, the engine cylinder body lifting mechanism 300 further comprises a cylinder body lifting mechanism 305. Figure 6 and Figure 7As shown, the lower part of the lifting pallet 3041 is fixedly connected with the spring 310 mounting plate 3046, the spring 310 mounting plate 3046 is provided with the spring 310 mounting groove 3047, the bottom end of the spring 310 is fixed in the spring 310 mounting groove 3047, the top end of the spring 310 is connected with the limiting rod 3065 mounted on the guide bottom plate 3062, the limiting rod 3065 is sleeved with the limiting nut 3066, and the limiting nut 3066 is located between the guide bottom plate 3062 and the fixed plate 302; when the guide pallet 3061 and the roller pallet 3042 are at the initial highest point, the spring 310 is in a compressed state, the roller pallet 3042 is spaced from the guide pallet 3061, the position of the limiting nut 3066 is adjusted to be in contact with the fixed plate 302, the spacing between the roller pallet 3042 and the guide pallet 3061 is controlled to be 10mm-20mm, and the top end of the first roller 3044 is higher than the top end of the guide rod 3064. Therefore, the accuracy of the placement position of the engine cylinder body 100 on the engine cylinder body pallet 202 is further ensured, and meanwhile, it is also ensured that the engine cylinder body 100 can be fed and discharged through the rollers.

[0064] Further, as shown in Figures 3 to 7 The guide rod 3064 and the connecting rod 3045 are arranged in a staggered manner, which is simple in structure and reasonable in design, can guide the engine cylinder body 100, ensure the accuracy of the placement position of the engine cylinder body 100 on the engine cylinder body pallet 202, and also ensure that the engine cylinder body 100 can be fed and discharged through the rollers.

[0065] Specifically, at the initial highest point, the spring 310 is in a compressed state, a certain gap is left between the roller supporting cylinder lifting mechanism 304 and the cylinder guiding lifting mechanism 306, the top end of the roller supporting cylinder lifting mechanism 304 is higher than the top end of the cylinder guiding lifting mechanism 306, and it is ensured that the engine cylinder 100 can enter this station through the roller. The lifting cylinder starts to extend, the roller supporting cylinder lifting mechanism 304 starts to descend, and the cylinder guiding lifting mechanism 306 remains in the original position under the action of the spring 310. When the gap between the two mechanisms disappears and they contact each other, that is, when the guiding plate 3061 contacts the roller plate 3042, the guiding rod 3064 is higher than the roller, and plays a guiding role on the engine cylinder 100. The cylinder guiding lifting mechanism 306 and the roller supporting cylinder lifting mechanism 304 fall down to the lowest point at the same time under the driving of the lifting cylinder, and the engine cylinder 100 falls on the engine cylinder plate 202, so as to realize the automatic placement of the engine cylinder plate 202 on the engine cylinder plate 202, without manual carrying. Not only the labor intensity is reduced, but also the placement precision is high, and the detection accuracy is greatly improved. After the detection is completed and the engine cylinder plate 202 is reset, the lifting cylinder starts to retract, the cylinder guiding lifting mechanism 306 and the roller supporting cylinder lifting mechanism 304 rise up at the same time, the guiding rod 3064 is higher than the roller, the roller contacts the engine cylinder 100, and drives the engine cylinder 100 to continue to rise. When the limiting nut 3066 contacts the fixed plate 302, the cylinder guiding lifting mechanism 306 stops rising under the action of the limiting nut 3066, and the roller supporting cylinder lifting mechanism 304 continues to rise to the initial highest point. At this time, the top end of the roller is higher than the top end of the guiding rod 3064, so as to ensure that the engine cylinder 100 is discharged through the roller.

[0066] Further, as Figure 8As shown, the engine cylinder guiding mechanism 40 comprises: a fixed support 401, a roller mounting plate 402, a second roller 403, a first linear guide rail 404, a guide rod 405, a telescopic cylinder 406, etc. The fixed support 401 is mounted on the workbench bottom plate 201, the roller mounting plate 402 is mounted on the fixed support 401, a plurality of second rollers 403 are mounted in the inner side of the two side plates of the roller mounting plate 402, and correspond to the engine cylinder support plate 202 in the initial position, so that the engine cylinder 100 on the roller line can be guided and conveyed to the corresponding workstations of the two-section lifting mechanism 30. The first linear guide rail 404 is mounted on the roller mounting plate 402, the bottom of the guide rod 405 is provided with a sliding block, and is in sliding connection with the first linear guide rail 404, the guide rod 405 faces the direction of the engine cylinder support plate 202 in the initial position, and the telescopic cylinder 406 is connected with the guide rod 405 and can drive the guide rod 405 to move. The telescopic cylinder 406 is fixedly installed on the fixed support 401. When the engine cylinder 100 is conveyed, the guide rod 405 is driven to extend by the telescopic cylinder 406, so as to guide the engine cylinder 100 to enter the corresponding workstations of the two-section lifting mechanism 30, and before the two-section lifting mechanism 30 acts, the guide rod 405 is retracted under the action of the telescopic cylinder 406.

[0067] Further, as shown in Figure 8 The engine cylinder guiding mechanism 40 further comprises: a rotating cylinder 407 and a blocking block 408 arranged in cooperation, which are installed on one side of the fixed support 401. After the engine cylinder 100 is conveyed to the corresponding workstations of the two-section lifting mechanism 30 and the guide rod 405 is retracted, the rotating cylinder 407 drives the blocking block 408 to rotate to a blocking position, thereby blocking the engine cylinder 100 and accurately positioning the engine cylinder 100, so as to ensure that the engine cylinder 100 is accurately positioned on the engine cylinder support plate 202.

[0068] Further, as shown in Figures 1 to 4 Two engine cylinder guiding mechanisms 40 are arranged, and the two engine cylinder guiding mechanisms 40 are symmetrically installed on both sides of the initial position of the engine cylinder support plate 202, so as to facilitate the transfer of the engine cylinder 100 from the production roller line to the two-section lifting mechanism 30, the falling of the engine cylinder 100 onto the engine cylinder support plate, and the transfer of the engine cylinder 100 from the two-section lifting mechanism 30 to the production roller line, thereby achieving the feeding and discharging of the engine cylinder 100.

[0069] Specifically, when the engine block 100 is conveyed, the telescopic air cylinder 406 drives the guide rod 405 to extend along the first linear guide rail 404, and the engine block 100 is conveyed along the guide rod 405 to the corresponding work position of the two-stage lifting mechanism 30 by the rollers, which ensures the smoothness of the conveying of the engine block 100 in the engine block guide mechanism 40. After the engine block 100 enters the corresponding work position of the two-stage lifting mechanism 30, the telescopic air cylinder 406 drives the guide rod 405 to retreat along the first linear guide rail 404 before the two-stage lifting mechanism 30 operates, the rotary air cylinder 407 drives the blocking block 408 to rotate to the blocking position, and the engine block 100 is blocked to be accurately positioned, which ensures the accurate pinning of the engine block 100 on the engine block supporting plate 202. After the engine block 100 falls to the engine block supporting plate 202, the rotary air cylinder 407 drives the blocking block 408 to rotate away from the blocking position. After detection is completed, the telescopic air cylinder 406 drives the guide rod 405 to extend along the first linear guide rail 404, and the engine block 100 is conveyed from the corresponding work position of the two-stage lifting mechanism 30 to the unloading roller by the rollers along the guide rod 405.

[0070] Further, as Figure 9As shown, the engine cylinder block conveying and blocking mechanism 20 comprises a workbench bottom plate 201, an engine cylinder block support plate 202, second linear guide rails 203, a driving cylinder 204, a workbench top plate 205, third support guide columns 206, a pressing cylinder 207, a top surface blocking structure 208, a side blocking mechanism 209, etc. The two second linear guide rails 203 are installed on the workbench bottom plate 201, and the engine cylinder block support plate 202 is installed on the second linear guide rails 203, so that the engine cylinder block support plate 202 moves along the second linear guide rails 203. The driving cylinder 204 is installed on the workbench bottom plate 201 and connected with the engine cylinder block support plate 202, so as to drive the engine cylinder block support plate 202 to move along the second linear guide rails 203, realizing the movement of the engine cylinder block 100 to the test position and the return reset. The engine cylinder block 100 positioning pin is installed on the front surface of the engine cylinder block support plate 202, which can position the engine cylinder block 100 on the engine cylinder block support plate 202 and send it to the test position together along the second linear guide rails 203. The sealing line is installed on the front surface of the engine cylinder block support plate 202, which can seal and support the bottom surface of the engine cylinder block 100. The workbench top plate 205 is connected with the workbench bottom plate 201 through the third support guide columns 206, and the pressing cylinder 207 is installed below the workbench top plate 205. The top surface blocking structure 208 is sleeved on the third support guide columns 206 and connected with the pressing cylinder 207, and the pressing cylinder 207 drives the top surface blocking structure 208 to block the top surface of the engine cylinder block 100. The side blocking mechanism 209 is arranged outside the second linear guide rails 203 to block the side surface of the engine cylinder block 100. Thus, the top surface blocking, side surface blocking, bottom surface blocking and sealing piece lap blocking of the engine cylinder block 100 are realized in the same station, and the blocking forms are all linear sealing. The polyurethane sealing ring is used, which has good blocking performance, is not easy to deform and has long service life. The test air pressure is respectively introduced into the corresponding chambers from the inside of each blocking piece. The top surface blocking and bottom surface blocking are realized by the vertically up and down pressing cylinder 207. The side blocking is realized by the blocking head driven by the cylinder with guide in the side blocking mechanism 209 to block the side hole of the engine cylinder block 100. The bottom surface blocking sealing line is installed on the engine cylinder block support plate 202, and the sealing part is also supported by the polyurethane blocking line, which ensures that the compression amount of the sealing line after the engine cylinder block 100 is pressed is the same, so that the engine cylinder block 100 is still horizontal after being pressed, and the lap blocking is realized by the combination of the sealing pieces of the bottom surface, side surface of the engine cylinder block 100 and the engine cylinder block support plate 202.

[0071] Further, as shown in FIG. 6, Figure 9As shown, the engine cylinder block conveying plugging mechanism 20 further comprises a pallet limiting mechanism 210, a detection switch 211, a code scanning camera 211, a marking mechanism 212, etc. The pallet limiting mechanism 210 is installed on the workbench bottom plate 201 and at the terminal end of the second linear guide rail 203. After the driving cylinder 204 drives the engine cylinder pallet 202 to move along the second linear guide rail 203 to the measuring position, the engine cylinder pallet 202 is ensured to be accurately stopped at the position to be tested by the pallet limiting mechanism 210, so that the engine cylinder 100 is fixed during the plugging process, and plugging deviation is avoided. The code scanning camera 211 is installed on the workbench bottom plate 201 by a mounting bracket and at the terminal end of the second linear guide rail 203. The whole mechanism is installed at the rear of the workbench bottom plate 201. The code scanning camera 211 reads the two-dimensional code information of the engine cylinder 100 and stores the test information data corresponding to the engine cylinder information in the database. The marking mechanism 212 is installed on the workbench bottom plate 201 and at the terminal end of the second linear guide rail 203. The marking mechanism 212 comprises a cylinder and a character head, etc. The engine cylinder 100 that passes the test is automatically marked by knocking the character head. The cylinder is provided with a one-way quick exhaust valve near the character head end. The cylinder can be quickly extended to achieve a relatively high impact force to complete the knocking action of the character head.

[0072] The detection switch 110 is installed on the workbench bottom plate 201 and at the outside of the second linear guide rail 203, facing the initial position of the engine cylinder pallet. It can detect whether the engine cylinder enters the work position of the two-section lifting mechanism. If the detection switch detects that the engine cylinder does not enter the work position of the two-section lifting mechanism, the lifting cylinder will not start even if the start button is pressed. Further, as shown in the figure, the detection switch 110 is provided with a detection rod 1101. When the engine cylinder 100 is in the work position of the two-section lifting mechanism, the detection rod 1101 is in contact with the engine cylinder 100. When the engine cylinder 100 is not in the work position of the two-section lifting mechanism, the detection rod 1101 is not in contact with the engine cylinder 100. Figure 10As shown, the control cabinet 50 includes a cabinet body 502, operation buttons and indicator lights 503, an HMI interface 504, a gas source pressure sensor 505, an alarm light 506, and the like installed on the cabinet body 502. The control cabinet 50 is installed on the mobile base 80, and the mobile base 80 is installed with mobile rollers 801. The pressure increasing device and the gas tank are installed inside the mobile base 80, which does not occupy external space and can move with the base. The inside of the cabinet body 502 is placed with a distribution panel and electrical components, and the side is installed with operation buttons and indicator lights 503, an HMI interface 504, a gas source pressure sensor 505, and an alarm light 506, which facilitates the operator to operate and adjust the equipment in front of the equipment and to view the automatic measurement data and various parameters through the HMI interface 504. The leak tester 501 is installed at a certain inclination angle on the top of the cabinet body 502, which facilitates the operator to operate and view the interface of the leak tester 501, and a protective cover is installed around the leak tester 501. The alarm light 506 is installed at the top of the protective cover of the leak tester 501 to facilitate the operator to see the running state of the equipment at any time. The leak tester 501 is a test instrument, which can set different test pressures, inflation times, test times, and the like according to different channels, and the test results can be obtained through the test to determine whether it is qualified. The leak tester 501 can switch different test circuits through three electromagnetic valves to test the sealing performance of the high-pressure oil way, the water jacket, and the low-pressure oil way of the engine cylinder body 100.

[0073] The gas path part includes a gas source filter, electromagnetic valves for controlling the gas cylinder, electromagnetic valves for controlling the test circuit, a precision pressure regulating valve for adjusting the clamping pressure, an electronic pressure switch, and various pipelines. The pressure increasing valve and the gas tank are provided in the gas path system, which can increase the pressure of the equipment gas source to be higher than the pressure of the factory gas source and keep it constant, ensure the stability of the input pressure of the leak tester 501, and thus ensure the stability and reliability of the leak test data and ensure the normal work of the plugging mechanisms.

[0074] Further, as shown in Figure 1 and Figure 11 , the engine cylinder body 100 gas tightness detection equipment further includes a protective shell 60 installed on the bed body support 10, and the engine cylinder conveying plugging mechanism 20 is located inside the protective shell 60. The safety light curtain 90 is installed on the protective support of the protective shell 60. The start button 70 is installed on the bed body support 10. The protective shell 60 is built with light section frames, and protective doors are arranged on the two sides and the back, and transparent organic glass is installed on the doors. When the internal mechanical structure needs to be adjusted or repaired, the operator can easily enter, and during the normal operation of the equipment, the operator can clearly see the internal action through the transparent glass.

[0075] Further, as shown in Figure 12 , the bed body support 10 is built with heavy frame section, and adjustable height legs are installed at the bottom.

[0076] The engine cylinder body air tightness detection method according to the embodiment of the application comprises the following steps:

[0077] The telescopic cylinder in the engine cylinder body guide mechanism is controlled to push the guide rod to extend, and the engine cylinder body is pushed into the two-section lifting mechanism along the guide rod and the second roller of the engine cylinder body guide mechanism;

[0078] The rotating cylinder drives the blocking block to rotate to the blocking position to block and limit the engine cylinder body;

[0079] The start button is pressed, the lifting cylinder extends, the roller supporting cylinder lifting mechanism descends, and the cylinder body guide lifting mechanism remains in the original position under the action of the spring to guide the engine cylinder body;

[0080] The lifting cylinder drives the roller supporting plate to descend, the engine cylinder body is driven to descend by the first roller on the roller supporting plate, and when the roller supporting plate descends to the lowest point, the engine cylinder body falls onto the engine cylinder body supporting plate;

[0081] The rotating cylinder drives the blocking block to rotate away from the blocking position, and the driving cylinder drives the engine cylinder body supporting plate and the engine cylinder body to move to the measurement position;

[0082] The code scanning camera reads the two-dimensional code on the engine cylinder body;

[0083] The pressing cylinder is controlled to press down, the top surface blocking structure is pressed down, the engine cylinder body is pressed tightly onto the engine cylinder body supporting plate, and the top surface and the bottom surface are blocked at the same time;

[0084] The side surface blocking mechanism is controlled to block the side surface hole and the lap joint position;

[0085] The test circuit electromagnetic valve is controlled to start to switch in turn, and the three cavities are tested in turn;

[0086] After the detection is completed, if the detection is qualified, the marking device is controlled to mark the engine cylinder body, and the engine cylinder body conveying and blocking mechanism is reset; if the detection is unqualified, the audible and visual alarm is controlled to sound and light;

[0087] The driving cylinder drives the engine cylinder body supporting plate and the engine cylinder body to move above the two-section lifting mechanism;

[0088] The lifting cylinder drives the roller supporting plate to ascend, the engine cylinder body is driven to ascend by the first roller on the roller supporting plate, when the limiting nut contacts the fixed plate, the cylinder body guide lifting mechanism stops ascending, the roller supporting cylinder lifting mechanism continues to ascend until the highest point;

[0089] The engine cylinder body is pushed into the unloading channel along the guide rod and the second roller of the engine cylinder body guide mechanism.

[0090] Therefore, the high-pressure oil channel, the water jacket and the low-pressure oil channel of the engine cylinder body can be tested at the same station in the production roller line without manual carrying, the labor intensity is greatly reduced, the detection data is convenient to store and trace, the automatic operation, sealing, gradual detection and one-key detection of all cavities are facilitated, time is saved, and the production efficiency is high.

[0091] In the present application, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0092] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0093] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0094] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An engine block air tightness testing apparatus characterized by comprising: The engine cylinder body conveying and blocking mechanism is arranged on the bed body support, and comprises a workbench bottom plate mounted on the bed body support, an engine cylinder body supporting plate arranged on the workbench bottom plate, a two-section lifting mechanism arranged on the bed body support and located directly below the initial position of the engine cylinder body supporting plate, and an engine cylinder body guiding mechanism arranged on the bed body support and located on one side of the initial position of the engine cylinder body supporting plate. The two-section lifting mechanism comprises a fixed plate arranged below the workbench bottom plate, a roller supporting cylinder body lifting mechanism and a cylinder body guiding lifting mechanism which are driven by the same lifting cylinder and arranged in cooperation. The roller supporting cylinder body lifting mechanism comprises a lifting supporting plate connected with the lifting cylinder and located below the fixed plate, a roller supporting plate connected with the lifting supporting plate through a first supporting and guiding column, the roller supporting plate being located between the fixed plate and the workbench bottom plate, and a plurality of first rollers respectively mounted on both sides of the roller supporting plate through connecting rods, the connecting rods penetrating through the workbench bottom plate. The cylinder body guiding lifting mechanism comprises a guiding supporting plate located between the fixed plate and the roller supporting plate, a guiding bottom plate connected with the guiding supporting plate through a second supporting and guiding column, the guiding bottom plate being connected with the lifting supporting plate through a spring, and a plurality of guiding rods respectively mounted on both sides of the lifting supporting plate, the guiding rods penetrating through the workbench bottom plate.

2. The engine cylinder body air tightness detection device according to claim 1, wherein a spring mounting plate is fixedly connected below the lifting supporting plate, a spring mounting groove is arranged on the spring mounting plate, the bottom end of the spring is fixed in the spring mounting groove, the top end of the spring is connected with a limiting rod mounted on the guiding bottom plate, a limiting nut is sleeved on the limiting rod, and the limiting nut is located between the guiding bottom plate and the fixed plate. When the guiding supporting plate and the roller supporting plate are at the initial highest point, the spring is in a compressed state, and the roller supporting plate is spaced apart from the guiding supporting plate. The position of the limiting nut is adjusted so that the limiting nut is in contact with the fixed plate, the spacing between the roller supporting plate and the guiding supporting plate is controlled to be 10mm-20mm, and the top end of the first roller is higher than the top end of the guiding rod.

3. The engine cylinder body air tightness detection device according to claim 2, wherein the guiding rods and the connecting rods are arranged in a staggered manner. The engine cylinder body guiding mechanism comprises a fixed support mounted on the workbench bottom plate, a roller mounting plate mounted on the fixed support, a plurality of second rollers mounted in the inner sides of both sides of the roller mounting plate, and corresponding to the engine cylinder body supporting plate in the initial position. ​ ​ ​ 4. The engine block leak testing apparatus according to any one of claims 1 to 3, characterized by, ​ ​ ​ A first linear guide rail is mounted on the roller mounting plate; A guide rod is provided with a sliding block at the bottom and is in sliding connection with the first linear guide rail, and the guide rod is directed towards the engine cylinder block support in the initial position; A telescopic air cylinder is mounted on the fixed support and is connected with the guide rod to drive the guide rod to move.

5. The engine block leak detection apparatus of claim 4, wherein, The engine cylinder guiding mechanism further comprises: A rotating air cylinder and a blocking block are mounted on one side of the fixed support to position the engine cylinder.

6. The engine cylinder air tightness detection equipment according to claim 5, wherein Two engine cylinder guiding mechanisms are symmetrically mounted on both sides of the initial position of the engine cylinder support plate.

7. The engine block leak testing apparatus according to any one of claims 1 to 3, characterized by, The engine cylinder conveying and blocking mechanism further comprises: Two second linear guide rails are mounted on the workbench bottom plate, and the engine cylinder support plate is mounted on the second linear guide rails to move along the second linear guide rails; A driving air cylinder is mounted on the workbench bottom plate and is connected with the engine cylinder support plate to drive the engine cylinder support plate to move along the second linear guide rails; A workbench top plate is connected with the workbench bottom plate through a third supporting guide column; A pressing air cylinder is mounted below the workbench top plate; A top surface blocking structure is sleeved on the third supporting guide column and is connected with the pressing air cylinder, and the pressing air cylinder drives the top surface blocking structure to block the top surface of the engine cylinder; A side surface blocking mechanism is arranged outside the second linear guide rails to block the side surface of the engine cylinder.

8. The engine block leak detection apparatus of claim 7, wherein, The engine cylinder conveying and blocking mechanism further comprises: A support plate limiting mechanism is mounted on the workbench bottom plate and is located at the terminal end of the second linear guide rails to limit the measurement position of the engine cylinder support plate; A code scanning camera is mounted on the workbench bottom plate and is located at the terminal end of the second linear guide rails to read the engine cylinder information after the engine cylinder reaches the measurement position; A marking mechanism is mounted on the workbench bottom plate and is located at the terminal end of the second linear guide rails to mark the engine cylinder after the test is completed.

9. The engine block leak testing apparatus according to any one of claims 1 to 3, characterized by, Further comprising: A detection switch is mounted on the workbench bottom plate and is directed towards the initial position of the engine cylinder support plate to detect whether the engine cylinder enters the work station of the two-section lifting mechanism; A protective shell is mounted on the bed body support, and the engine cylinder conveying and blocking mechanism is located inside the protective shell; A safety light curtain is mounted on the protective support of the protective shell; A movable base is arranged at the bottom of the control electric cabinet to drive the control electric cabinet to move.

10. An engine block leak detection method, comprising: The engine cylinder air tightness detection equipment according to any one of claims 1 to 9 comprises the following steps: The telescopic air cylinder in the engine cylinder guiding mechanism pushes the guide rod to extend, and the engine cylinder is pushed into the two-section lifting mechanism along the guide rod and the second roller of the engine cylinder guiding mechanism from the feeding channel; The rotating air cylinder drives the blocking block to rotate to the blocking position to block and position the engine cylinder; Press the start button, the lifting cylinder extends, the roller supporting cylinder body lifting mechanism descends, the cylinder body guiding lifting mechanism remains in the original position under the action of the spring, and the engine cylinder is guided; The lifting cylinder drives the roller supporting plate to descend, the first roller on the roller supporting plate drives the engine cylinder to descend, and when the roller supporting plate descends to the lowest point, the engine cylinder falls onto the engine cylinder supporting plate; The rotating cylinder drives the blocking block to rotate away from the blocking position, the driving cylinder drives the engine cylinder supporting plate and the engine cylinder to move to the measurement position; The code scanning camera reads the two-dimensional code on the engine cylinder; The pressing cylinder is pressed down to drive the top sealing structure to be pressed down, the engine cylinder is pressed tightly onto the engine cylinder supporting plate, and the top and bottom are sealed at the same time; The side sealing mechanism seals the side hole and the lap joint position; The control test circuit electromagnetic valve starts to switch in turn, and the three cavities are tested in turn; After the detection is completed, if the detection is qualified, the marking device is controlled to mark, and the engine cylinder conveying and sealing mechanism is reset; if the detection is unqualified, the audible and visual alarm is controlled; The driving cylinder drives the engine cylinder supporting plate and the engine cylinder to move to the upper side of the two-section lifting mechanism; The lifting cylinder drives the roller supporting plate to ascend, the first roller on the roller supporting plate drives the engine cylinder to ascend and separate from the engine cylinder supporting plate, when the limiting nut contacts the fixed plate, the cylinder body guiding lifting mechanism stops ascending, the roller supporting cylinder body lifting mechanism continues to ascend, and stops at the highest point; The engine cylinder is pushed into the discharging channel along the guide rod and the second roller of the engine cylinder guiding mechanism.

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