Engine cylinder cover leakage testing device

Abstract

The utility model relates to the technical field of cylinder cover tightness detection, in particular to an engine cylinder cover leakage testing device which comprises a workbench, a connecting table, an in-out assembly, a support, a leakage testing positioning assembly, a lighting piece and an image acquisition piece. One side of the workbench is connected with a connecting table, and the connecting table and the workbench are communicated and provided with guide grooves. The in-out assembly is connected to the connecting table and connected with the workbench. The in-out assembly comprises a mounting frame, a motor, a screw rod, a moving block and a connecting piece; the two mounting frames are connected with the workbench and the connecting table respectively, the motor is connected to the mounting frame at one end, the motor is in transmission connection with the screw rod, the screw rod is in threaded fit with the moving block, the moving block is connected with the connecting piece, and one end of the screw rod is connected with the mounting frame at the other end; the support is connected to the workbench. And one side of the bracket is connected with the lighting piece and the image acquisition piece. According to the utility model, the cylinder cover leakage test detection work efficiency is further improved, and the practicability of the engine cylinder cover leakage test device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cylinder cover tightness detection technical field especially relates to a kind of engine cylinder cover leak testing device. BACKGROUND

[0002] Cylinder cover is installed on the upper surface of cylinder body, seals cylinder from upper part and constitutes combustion chamber. It is often in contact with high-temperature and high-pressure gas, so it bears great thermal load and mechanical load. The bolt pretightening force borne by the top surface of cylinder cover is far greater than the combustion pressure, and the bottom surface of cylinder cover bears the high-pressure gas pressure and thermal load generated by fuel combustion. If engine cylinder cover has air leakage or other minor problems, it is easy to cause engine cylinder cover to blow and explode, so the air tightness of engine cylinder cover needs to be detected.

[0003] A kind of engine cylinder cover leak testing device is disclosed in Chinese patent with publication number CN219675379U, comprising a base, a lifting seat is arranged at the top end of the base. The leak testing device for engine cylinder cover machining can control the second water pump to start and use the return pipe to extract the test water in the test box after use, and guide it to the inside of the reserved port from the top end of the return pipe. The filter screen arranged in the reserved port can filter and remove some impurities and debris in the test water. After filtration, the test water is guided into the inside of the water tank for storage. The first water pump can also be started to use the water outlet pipe to extract the test water filtered in the water tank and transport it to the inside of the test box from the bottom end of the water outlet pipe for repeated use. This facilitates the filtration of some impurities in the test water and solves the problem of inconvenient filtration of some impurities in the test water.

[0004] The existing engine cylinder cover leak testing device detects by placing the cylinder cover workpiece on the device, but the device components can easily cause low placement efficiency of the workpiece, which reduces the leak detection work efficiency of the cylinder cover workpiece. At the same time, the surface flaws of the detected cylinder cover are not convenient to detect. The cylinder cover workpiece with surface flaws affects the leak detection work efficiency of qualified cylinder cover workpiece, which reduces the use structure of engine cylinder cover leak testing device and reduces the practicability. UTILITY MODEL CONTENTS

[0005] In view of the problems in the background art, an engine cylinder cover leak testing device is proposed.

[0006] The utility model proposes an engine cylinder cover leak testing device, comprising: a workbench, a connecting table, an access assembly, a support, a leak testing positioning assembly, an illuminating element and an image acquisition element.

[0007] One side of the workbench is connected with the connecting table, and the connecting table and the workbench are provided with a guide groove in communication;

[0008] The access assembly is connected to the connecting table and the workbench;

[0009] The access assembly comprises a mounting frame, a motor, a screw rod, a moving block and a connecting piece. The mounting frame is provided with two, and the two mounting frames are connected to the workbench and the connecting table respectively. The motor is connected to one end of the mounting frame. The motor is drivingly connected to the screw rod. The screw rod is threadedly connected to the moving block. The moving block is connected to the connecting piece. One end of the screw rod is connected to the other mounting frame.

[0010] The support is connected to the workbench;

[0011] The support is connected to the leak detection positioning assembly and connected to the lighting piece and the image acquisition piece on one side.

[0012] Preferably, the connecting piece comprises a connecting block, a guide block and a guide rod;

[0013] The connecting block is provided with two, and the two connecting blocks are connected to the two sides of the moving block one by one. The connecting block is connected to the guide rod one by one and slidingly. The guide rod is connected to the mounting frame at both ends. The guide block is connected below the moving block and in the guide groove.

[0014] Preferably, the leak detection positioning assembly comprises a support plate, an air cylinder, a leak detection clamp, a placement table, a side plate, a connecting plate, an electric push rod, a clamping plate and a sealing piece;

[0015] The support plate is connected to the support. The support plate is connected to the air cylinder. The driving end of the air cylinder is connected to the leak detection clamp.

[0016] The placement table is connected to the moving block. The placement table is connected to the side plate on both sides. The side plate is connected to the connecting plate one by one. The two connecting plates are connected to the electric push rod. The driving end of the two electric push rods is connected to the clamping plate. The two clamping plates are connected to the placement table.

[0017] Preferably, the sealing piece comprises a sealing ring, a fixing belt, a fixing buckle and a pad plate;

[0018] The sealing ring is connected to the placement table. The outer wall of the sealing ring is connected to the fixing belt on both sides. The fixing belt is connected to the pad plate through the fixing buckle. The pad plate is connected to the placement table on both sides.

[0019] Preferably, the lighting piece comprises a mounting plate a, a support plate and an LED lamp;

[0020] The mounting plate a is connected to one side of the support and can be detachably connected. The mounting plate a is connected to the support plate. The support plate is connected to the LED lamp below.

[0021] Preferably, the image acquisition piece comprises a mounting plate b, a fixing plate and a camera;

[0022] The mounting plate b is connected to one side of the support. The mounting plate b is connected to the fixing plate. The fixing plate is connected to the camera below.

[0023] Compared with the prior art, the utility model has following beneficial technical effects:

[0024] The utility model discloses a workbench one side extension setting connecting platform is provided with in and out subassembly on the workbench and connecting platform, and when in and out subassembly moves on the connecting platform, the cylinder cover workpiece is placed on the placing platform or is taken off from the placing platform, and the workpiece on the placing platform moves to the below leak detection clamp through in and out subassembly, makes to the cylinder cover workpiece leak detection treatment use, and the cylinder cover workpiece is convenient to operate and places or takes, and the cylinder cover workpiece leak detection work efficiency is convenient to improve, and then the cylinder cover workpiece moves in the process and first moves to the below image acquisition spare, makes to the cylinder cover workpiece parameter comparison, makes the cylinder cover for the qualified product or the defective product of leak detection, and the qualified product moves and carries out leak detection, and the defective product replaces the new cylinder cover workpiece of detection, and then avoids the defective product of surface treatment influence cylinder cover workpiece leak detection work efficiency, and further improves the cylinder cover leak detection work efficiency, and the engine cylinder cover leak detection device use structure is convenient to improve, and the engine cylinder cover leak detection device practicality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is whole structure schematic diagram in the utility model;

[0026] Figure 2 It is fixed platform and connecting platform schematic diagram in the utility model;

[0027] Figure 3 It is leak detection positioning assembly structure schematic diagram in the utility model;

[0028] Figure 4 It is connecting block and guide block connection schematic diagram in the utility model.

[0029] Sign significance: 1, workbench;101, guide groove;2, connecting platform;3, in and out subassembly;301, mounting frame;302, motor;303, screw;304, moving block;305, connecting block;306, guide block;307, guide rod;4, support;5, leak detection positioning assembly;501, support plate;502, cylinder;503, leak detection clamp;504, placing platform;505, side plate;506, connecting plate;507, electric push rod;508, clamping plate;509, sealing ring;510, fixed band;511, fixed buckle;512, backing plate;6, mounting plate a;7, support plate;8, LED lamp;9, mounting plate b;10, fixed plate;11, camera. DETAILED DESCRIPTION

[0030] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0031] Embodiment One

[0032] As Figure 1 - Figure 4 The utility model provides a kind of engine cylinder cover leak detection device, it include: workbench 1, connecting table 2, access component 3, support 4, leak detection positioning component 5, illuminating piece and image acquisition piece;Workbench 1 side is connected with connecting table 2, connecting table 2 and workbench 1 intercommunication are provided with direction groove 101;Access component 3 is connected on connecting table 2 and is connected with workbench 1;Access component 3 includes mounting bracket 301, motor 302, screw rod 303, moving block 304 and connecting piece;Two mounting brackets 301 are provided in mounting bracket 301, two mounting brackets 301 are connected with workbench 1, connecting table 2 respectively, motor 302 is connected on one end mounting bracket 301, motor 302 is drivingly connected screw rod 303, screw rod 303 is screwed with moving block 304, moving block 304 is connected with connecting piece, screw rod 303 one end and the mounting bracket 301 of other end are connected;Support 4 is connected on workbench 1;Support 4 connects leak detection positioning component 5 and one side is connected illuminating piece and image acquisition piece.By access component 3 on workbench 1 and connecting table 2 movement, so as to drive placement platform 504 to move, it is convenient to operate and place cylinder cover workpiece on placement platform 504, it is convenient to improve cylinder cover workpiece placement or take work efficiency, image acquisition piece is used to compare the information and parameter information of cylinder cover workpiece, and then the cylinder cover to be tested is obtained for pass or defective product, pass is further moved and tested, and defective product is replaced with new cylinder cover workpiece to be tested, so as to avoid the influence of surface treatment unqualified defective product on cylinder cover workpiece leak detection work efficiency, conveniently further improve cylinder cover leak detection work efficiency.

[0033] Further explanation, connecting piece includes connecting block 305, guide block 306 and guide rod 307;Two connecting blocks 305 are provided, two connecting blocks 305 and moving block 304 both sides are connected one by one, connecting block 305 and guide rod 307 are connected one by one and slide, both ends of guide rod 307 and mounting bracket 301 are connected, guide block 306 is connected below moving block 304, and guide block 306 is connected in direction groove 101.In the moving process of moving block 304, guide block 306 moves along direction groove 101 synchronously, and the connecting block 305 of both sides synchronously slides in the periphery of guide rod 307, improve the moving stability of moving block 304, increase the moving effect of placement platform 504.

[0034] Further illustrate, the lighting piece includes mounting plate a6, support plate 7 and LED lamp 8, mounting plate a6 is connected on one side of support 4, and can be detachably connected, mounting plate a6 connects support plate 7, and support plate 7 is connected with LED lamp 8 below, the image acquisition piece includes mounting plate b9, fixed plate 10 and camera 11, mounting plate b9 is connected on one side of support 4, mounting plate b9 connects fixed plate 10, and camera 11 is connected below fixed plate 10, LED lamp 8 is connected by power supply line and power supply equipment, and camera 11 is electrically connected with controller, in the comparison of the cylinder cover workpiece image information and the cylinder cover workpiece parameter information collected by camera 11 in the working process of controller, LED lamp 8 is started by power supply equipment and is used, to facilitate the illumination use of cylinder cover workpiece, to facilitate the improvement of image acquisition effect.

[0035] Example two

[0036] As Figure 3 and Figure 4 shown, a kind of engine cylinder cover leak testing device is disclosed in the utility model, on the basis of above-mentioned embodiment, the specific component of leak testing positioning assembly 5 and cooperation mode are also detailed in the embodiment.

[0037] Further illustrate, leak testing positioning assembly 5 includes support plate 501, cylinder 502, leak testing fixture 503, placement table 504, side plate 505, connecting plate 506, electric push rod 507, clamping plate 508 and sealing element, support plate 501 is connected on support 4, support plate 501 connects cylinder 502, and the driving end of cylinder 502 is connected with leak testing fixture 503, placement table 504 is connected on moving block 304, and placement table 504 is connected with side plate 505 on both sides respectively, side plate 505 and connecting plate 506 are one-to-one correspondence, two connecting plates 506 are connected with electric push rod 507 respectively, and the driving end of two electric push rods 507 is connected with clamping plate 508, and two clamping plates 508 are connected on placement table 504.Cylinder cover workpiece to be detected is placed on placement table 504, is driven by electric push rod 507 on both sides, and electric push rod 507 drives and moves clamping plate 508 towards the direction of cylinder cover workpiece, so that cylinder cover workpiece is positioned and clamped on placement table 504, leak testing fixture 503 moves up and down by cylinder 502, and leak testing fixture 503 clamps cylinder cover workpiece, so that the air is filled into cylinder cover workpiece by external inflation equipment, to reach the air tightness detection use of cylinder cover workpiece, and existing technology, no more.

[0038] Further illustrate, the sealing member includes a sealing ring 509, a fixed band 510, a fixed buckle 511 and a pad plate 512; the sealing ring 509 is connected on the placing table 504, the sealing ring 509 is connected with the fixed band 510 on both sides of the outer wall, the fixed band 510 is connected through the fixed buckle 511 and the pad plate 512, and the pad plate 512 is connected on both sides of the placing table 504. The sealing ring 509 increases the sealing property of the placing table 504 and the cylinder cover workpiece, facilitates the use of the air charging equipment for the cylinder cover air tightness detection, and facilitates the use of the engine cylinder cover leak detection device.

[0039] The working principle of the utility model is as follows: when the engine cylinder cover leak detection device is used, first, the placing table 504 is moved on the connecting table 2 for use, the staff places the cylinder cover workpiece to be detected on the placing table 504, positions and clamps the cylinder cover workpiece through the two side clamps 508, after positioning and clamping the cylinder cover workpiece, starts the motor 302, the motor 302 drives the transmission screw rod 303, the screw rod 303 is threadedly matched with the moving block 304, the moving block 304 is slidably connected through the two side connecting blocks 305 and the guide rods 307, so that the moving block 304 moves linearly, the moving block 304 drives the placing table 504 to move towards the workbench 1 direction, moves to the image acquisition piece below and stops, and the motor 302 is turned off, so that the camera 11 compares the image information and parameter information of the cylinder cover workpiece, the qualified cylinder cover workpiece is started motor 302, moves to the leak detection clamp 503 below, the motor 302 is turned off and stopped, the leak detection clamp 503 is positioned, after positioning, then uses the external air charging equipment to charge air into the cylinder cover workpiece, so as to achieve the air tightness detection of the cylinder cover workpiece, the defective cylinder cover workpiece is moved to the connecting table 2 on the placing table 504 through the starting motor 302, the staff takes down the defective cylinder cover workpiece, places a new cylinder cover workpiece to be detected, and repeats the above operation, so as to improve the engine cylinder cover leak detection work efficiency and improve the use structure of the engine cylinder cover leak detection device.

[0040] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, within the knowledge scope of the technical personnel in the technical field, various changes can be made without departing from the purpose of the utility model.

Claims

1. An engine head leak-down device characterized by, The utility model relates to a kind of leak detection positioning assembly and image acquisition device. It comprises: Workbench (1); One side of workbench (1) is connected with connecting table (2), and connecting table (2) and workbench (1) are provided with guide groove (101) in communication; Access assembly (3) is connected on connecting table (2) and is connected with workbench (1); Access assembly (3) includes mounting bracket (301), motor (302), screw rod (303), moving block (304) and connecting piece;Two mounting brackets (301) are provided, and the two mounting brackets (301) are connected with workbench (1) and connecting table (2) respectively, motor (302) is connected on one end mounting bracket (301), motor (302) is drivingly connected with screw rod (303), screw rod (303) is threadedly matched with moving block (304), moving block (304) is connected with connecting piece, and one end of screw rod (303) is connected with the mounting bracket (301) of the other end; And support (4) is connected on workbench (1); 2. An engine head leak-down device according to claim 1, wherein, Support (4) is connected with leak detection positioning assembly (5) and one side is connected with illuminating piece and image acquisition piece. Connecting piece includes connecting block (305), guide block (306) and guide rod (307); 3. An engine head leak-down device according to claim 2, wherein, Two connecting blocks (305) are provided, and the two connecting blocks (305) are connected with both sides of moving block (304) one by one, connecting block (305) and guide rod (307) are connected one by one and slidingly, both ends of guide rod (307) are connected with mounting bracket (301), guide block (306) is connected below moving block (304), and guide block (306) is connected in guide groove (101). Leak detection positioning assembly (5) includes support plate (501), air cylinder (502), leak detection clamp (503), placing table (504), side plate (505), connecting plate (506), electric push rod (507), clamping plate (508) and sealing element; Support plate (501) is connected on support (4), support plate (501) is connected with air cylinder (502), and driving end of air cylinder (502) is connected with leak detection clamp (503); 4. An engine head leak-down device as claimed in claim 3, wherein, Placing table (504) is connected on moving block (304), and both sides of placing table (504) are connected with side plate (505) respectively, side plate (505) and connecting plate (506) correspond one by one, two connecting plates (506) are connected with electric push rod (507) respectively, driving end of two electric push rods (507) is connected with clamping plate (508) respectively, and two clamping plates (508) are connected on placing table (504). Sealing element includes sealing ring (509), fixing belt (510), fixing buckle (511) and backing plate (512); 5. An engine head leak-down device as claimed in claim 4, wherein, Sealing ring (509) is connected on placing table (504), and both sides of outer wall of sealing ring (509) are connected with fixing belt (510) respectively, fixing belt (510) is connected with backing plate (512) through fixing buckle (511), and backing plate (512) is connected on both sides of placing table (504). Illuminating piece includes mounting plate a (6), support plate (7) and LED lamp (8); Mounting plate a (6) is connected on one side of support (4) and can be detachably connected, mounting plate a (6) is connected with support plate (7), and support plate (7) is connected below LED lamp (8).

6. An engine cylinder head leak-down device as set forth in claim 5 wherein, The image acquisition device comprises a mounting plate b (9), a fixing plate (10) and a camera (11); The mounting plate b (9) is connected to one side of the support (4), the mounting plate b (9) is connected to the fixing plate (10), and the fixing plate (10) is connected to the camera (11) below.

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