Automobile engine cylinder cover airtightness detection device

Abstract

The utility model discloses an air tightness detection device for an automobile engine cylinder cover, and belongs to the technical field of automobile part production. An automobile engine cylinder cover airtightness detection device comprises a water tank and further comprises supports which are symmetrically arranged, the supports are fixedly arranged on the outer wall of the water tank, first guide rails are fixedly arranged on the tops of the two supports, first sliding grooves are formed in the first guide rails, and an adapter plate used for bearing a cylinder cover is arranged on the first guide rails in a sliding mode; the bottom plate is arranged in the water tank in a lifting mode, a top plate is fixedly arranged at the top of the bottom plate through fixing rods, a detection plate is arranged between the bottom plate and the top plate in a lifting mode, and a pressing block for clamping a cylinder cover is arranged at the bottom of the detection plate; according to the utility model, the cylinder cover is placed on the adapter plate, so that the cylinder cover can be conveniently stacked on the bottom plate, the labor amount can be reduced, the physical consumption can be reduced, the use effect can be improved, and when the cylinder cover is positioned on the bottom plate, the detection plate drives the pressing block to approach the cylinder cover, so that the cylinder cover is clamped on the bottom plate, and the cylinder cover can be conveniently fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, in particular to an automobile engine cylinder cover airtightness detection device. Background Art

[0002] The engine cylinder head is used to seal the cylinder and form a combustion chamber. The side-valve engine cylinder head is cast with a water jacket, water inlet holes, water outlet holes, spark plug holes, bolt holes, combustion chambers, etc. The overhead valve engine cylinder head, in addition to the cooling water jacket, also has valve devices, intake and exhaust passages, etc. The engine cylinder head is used to seal the cylinder and form a combustion chamber. The side-valve engine cylinder head is cast with a water jacket, water inlet holes, water outlet holes, spark plug holes, bolt holes, combustion chambers, etc. The overhead valve engine cylinder head, in addition to the cooling water jacket, also has valve devices, intake and exhaust passages, etc. The cylinder head has high requirements for air tightness, so it is necessary to test its air tightness during the production process.

[0003] After searching, the Chinese patent application number 202323130190.2 discloses an automobile engine cylinder head air tightness detection device. The utility model relates to the field of automobile parts production technology, and in particular to an automobile engine cylinder head air tightness detection device, including a water tank and an engine cylinder head. The water tank is provided with a detection mechanism and is used to perform air tightness detection on the engine cylinder head. The water tank is provided with a lifting mechanism and is used to lift the engine cylinder head during detection. The lifting mechanism is provided with a hoisting mechanism and is used to hoist the engine cylinder head during detection. The hoisting mechanism includes: a driving assembly, a frame mounted on the lifting mechanism, and a second cylinder mounted on the top of the frame. The above-mentioned solution solves the problem that when testing the engine cylinder head, the engine cylinder head needs to be placed inside the air tightness inspection box and taken out after the detection. Since water stains produced during the detection will remain on the engine cylinder head, the staff may slip easily during the removal process, causing safety hazards. The above patent has the following deficiencies when used: due to the heavy weight of the cylinder head, it is necessary to move the cylinder head into the water tank multiple times during batch testing, which increases the workload and requires high physical strength. In addition, during the testing process, it is inconvenient to fix the cylinder head, which can easily lead to loose connection of the gas head and air leakage, affecting the judgment of air tightness. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the cylinder head needs to be frequently moved into a water tank, which increases the workload and makes it inconvenient to fix the cylinder head, and proposes an automobile engine cylinder head air tightness detection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automobile engine cylinder head air tightness detection device comprises a water tank, on which an air tightness detector is fixedly arranged, and further comprises: symmetrically arranged brackets, both of which are fixedly arranged on the outer wall of the water tank, two groups of brackets are fixedly arranged with a first guide rail on the top, the first guide rail is provided with a first slide groove, and an adapter plate for carrying the cylinder head is slidably arranged on the first guide rail; a bottom plate arranged in the water tank for lifting, wherein a top plate is fixedly arranged on the top of the bottom plate by a fixing rod, a detection plate is lifted and arranged between the bottom plate and the top plate, and a pressure block for clamping the cylinder head is arranged at the bottom of the detection plate.

[0007] In order to improve the transfer effect of the adapter plate to the base plate, preferably, a second guide rail corresponding to the first guide rail is fixedly provided on one end of the base plate, a second slide groove is opened in the second guide rail, and a sliding block is fixedly provided at the bottom of the adapter plate, and the sliding block is slidably provided in the first slide groove and the second slide groove respectively.

[0008] In order to facilitate the adjustment of the position of the adapter plate, further, the other end of the base plate is threadedly connected with a screw rod, and one end of the screw rod extending into the second slide groove is fixedly provided with a stop block, the stop block abuts against the sliding block, and the other end of the screw rod is fixedly provided with a knob.

[0009] In order to facilitate driving the detection plate to rise and fall, preferably, the detection plate is slidably connected to the fixed rod, a cylinder is fixedly provided on the top plate, and the detection plate is fixedly connected to the output end of the cylinder.

[0010] Preferably, a sealing gasket is fixedly provided on the clamping end face of the pressure block, a detection air hole and a blowing hole are opened in the pressure block, a telescopic cylinder is fixedly provided on the bottom of the detection plate, a telescopic rod is slidably provided in the telescopic cylinder, a mounting plate is fixedly provided on the end of the telescopic rod away from the telescopic cylinder, the mounting plate is fixedly connected to the pressure block, and a spring is sleeved on the telescopic rod, and both ends of the spring are respectively against the mounting plate and the telescopic cylinder.

[0011] Preferably, guide grooves are provided on the inner walls on both sides of the water tank, guide blocks are fixedly arranged on both sides of the bottom plate, the guide blocks are slidably arranged in the corresponding guide grooves, and a lead screw is rotatably arranged in one group of the guide grooves, the guide blocks are threadedly connected to the lead screw, and a motor for driving the lead screw to rotate is fixedly arranged on the water tank.

[0012] Compared with the prior art, the utility model provides an automobile engine cylinder head air tightness detection device, which has the following beneficial effects:

[0013] 1. The automobile engine cylinder head air tightness detection device, by placing the cylinder head on the adapter plate and then pushing the adapter plate to slide it toward the bottom plate, is convenient for stacking the cylinder head on the bottom plate, which can reduce the workload, reduce physical consumption, and improve the use effect. When the adapter plate transfers the cylinder head to the bottom plate and puts it in place, the detection plate brings the pressure block to the cylinder head to clamp the cylinder head on the bottom plate, thereby preventing the cylinder head from moving during the detection process, resulting in detection errors and affecting the judgment of the cylinder head air tightness;

[0014] 2. The automobile engine cylinder head air tightness detection device has a blowing hole on the pressing block. On the one hand, before the pressing block is clamped, the cylinder head surface can be purged to reduce dust and improve the sealing effect. On the other hand, after the detection is completed and the bottom plate is separated from the water surface of the water tank by a certain distance, the cylinder head is still located in the water tank, and then the cylinder with the detection plate and the pressing block reciprocates and rises and falls, and the moisture on the cylinder head surface can be purged through the blowing hole, thereby improving the use effect.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The utility model places the cylinder head on the adapter plate and then pushes the adapter plate to slide it toward the bottom plate, which makes it convenient to stack the cylinder head on the bottom plate, thereby reducing labor, alleviating physical exertion and improving the use effect. After the adapter plate transfers the cylinder head to the bottom plate, the detection plate brings the pressure block close to the cylinder head to clamp the cylinder head on the bottom plate, thereby preventing the cylinder head from moving, causing detection errors and affecting the judgment of the air tightness of the cylinder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an automobile engine cylinder head air tightness detection device proposed by the utility model;

[0017] Figure 2 This is a cross-sectional view of an automobile engine cylinder head air tightness detection device proposed by the utility model;

[0018] Figure 3 The utility model proposes an automobile engine cylinder head air tightness detection device Figure 2 A magnified view of part A;

[0019] Figure 4 The utility model is a structural schematic diagram of a pressing block of an automobile engine cylinder head air tightness detection device.

[0020] In the figure: 1. water tank; 101. guide groove; 102. lead screw; 103. motor; 2. bottom plate; 201. second guide rail; 202. second slide groove; 203. fixing rod; 204. top plate; 205. guide block; 3. bracket; 301. first guide rail; 302. first slide groove; 4. adapter plate; 401. positioning block; 5. detection plate; 6. pressure block; 601. sealing gasket; 602. detection air hole; 603. blowing hole; 7. telescopic cylinder; 701. telescopic rod; 702. spring; 8. screw; 801. stop block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Example:

[0024] Reference Figure 1-Figure 4, an automobile engine cylinder head air tightness detection device, comprising a water tank 1, an air tightness detector is fixedly arranged on the outer wall of the water tank 1, and also comprises: brackets 3 arranged symmetrically, all of which are fixedly arranged on the outer wall of the water tank 1, first guide rails 301 are fixedly arranged on the top of two groups of brackets 3, a first slide groove 302 is opened on the first guide rail 301, an adapter plate 4 for carrying the cylinder head is slidably arranged on the first guide rail 301, and a positioning block 401 is fixedly arranged on the top end surface of the adapter plate 4 by bolts, which can limit the position of the cylinder head placed on the adapter plate 4, so that the placement position is reliable and the use effect is improved; a bottom plate 2 is lifted and lowered in the water tank 1, wherein a fixing rod 203 is fixedly arranged on the top of the bottom plate 2 A top plate 204 is provided, and two to six groups, preferably four groups, of fixing rods 203 are provided. A detection plate 5 is lifted and lowered between the bottom plate 2 and the top plate 204, and a pressure block 6 for clamping the cylinder head is provided at the bottom of the detection plate 5. When in use, the cylinder head is placed on the adapter plate 4, and then the adapter plate 4 is pushed to slide toward the bottom plate 2, so that the cylinder head can be conveniently stacked on the bottom plate 2, which can reduce labor, reduce physical exertion, and improve the use effect. When the adapter plate 4 transfers the cylinder head to the bottom plate 2 and puts it in place, the detection plate 5 moves with the pressure block 6 toward the cylinder head to clamp the cylinder head on the bottom plate 2, so as to prevent the cylinder head from moving during the detection process, resulting in detection errors and affecting the judgment of the air tightness of the cylinder head.

[0025] Reference Figure 1 and Figure 2 A second guide rail 201 corresponding to the first guide rail 301 is fixedly arranged on one end of the bottom plate 2 close to the bracket 3, and the second guide rail 201 is also symmetrically arranged with two groups. A second slide groove 202 is opened in the two groups of second guide rails 201, and the second slide groove 202 corresponds to the first slide groove 302. A sliding block is fixedly arranged at the bottom of the adapter plate 4, and the sliding blocks are slidably arranged in the first slide groove 302 and the second slide groove 202 respectively. When in use, the second guide rail 201 is fixedly arranged at one end of the bottom plate 2, so that the adapter plate 4 is conveniently transferred from the first guide rail 301 to the bottom plate 2, and a first slide groove 302 and a second slide groove 202 are opened. The first slide groove 302 and the second slide groove 202 are both T-shaped, which can ensure the reliable sliding of the adapter plate 4 on the one hand, and prevent the adapter plate 4 from escaping from the first slide groove 302 or the second slide groove 202 on the other hand, affecting normal use.

[0026] Reference Figure 3A screw rod 8 is threadedly connected to the other end of the bottom plate 2, and a stop block 801 is fixedly arranged on one end of the screw rod 8 extending into the second slide groove 202, so that the stop block 801 is abutted against the sliding block, and a knob is fixedly arranged on the other end of the screw rod 8. When in use, the screw rod 8 is driven to rotate by the knob to adjust the position of the stop block 801, which is convenient for limiting the adapter plate 4 and can also prevent the adapter plate 4 from directly hitting the bottom plate 2 and affecting the use effect.

[0027] Reference Figure 2 , the detection plate 5 is slidably connected to the fixed rod 203, which can ensure the reliable lifting and lowering of the detection plate 5 and avoid overturning, which affects normal use. A cylinder is fixedly arranged on the top plate 204, and the detection plate 5 is fixedly connected to the output end of the cylinder. When in use, the detection plate 5 is fixedly connected to the output end of the cylinder to facilitate driving the detection plate 5 to be lifted and lowered. Moreover, the detection plate 5 is slidably connected to the fixed rod 203, which can ensure the reliable lifting and lowering of the detection plate 5 and improve the use effect.

[0028] Reference Figure 4 A sealing gasket 601 is fixedly arranged on the clamping end surface of the pressure block 6. The sealing gasket 601 is pressed against the detection port of the cylinder head to improve the sealing effect. A detection air hole 602 and a blowing hole 603 are opened in the pressure block 6. The detection air hole 602 is connected to the air tightness detector, the air tightness detector is connected to the air pump, and the blowing hole 603 is connected to the air pump through a valve, which is convenient for air supply. A telescopic cylinder 7 is fixedly arranged at the bottom of the detection plate 5, a telescopic rod 701 is slidably arranged in the telescopic cylinder 7, and a limit plate is slidably arranged in the telescopic cylinder 7, the telescopic rod 701 is extended into the telescopic cylinder 7 and fixedly connected to the limit plate, a mounting plate is fixedly arranged at one end of the telescopic rod 701 away from the telescopic cylinder 7, the mounting plate is fixedly connected to the pressure block 6, and the telescopic rod 7 is fixedly arranged at the bottom of the detection plate 5. 01 is sleeved with a spring 702, and the two ends of the spring 702 are respectively pressed against the mounting plate and the telescopic cylinder 7. When in use, a detection air hole 602 is opened on the pressure block 6 to facilitate the introduction of gas into the cylinder head, and a sealing gasket 601 is fixedly arranged on the outlet end face of the detection air hole 602 to improve the sealing effect and avoid leakage. A blowing hole 603 is opened on the pressure block 6. On the one hand, before the pressure block 6 is clamped, the surface of the cylinder head can be blown to reduce dust and improve the sealing effect. On the other hand, after the detection is completed and the bottom plate 2 is separated from the water surface of the water tank 1 by a certain distance, the cylinder head is still located in the water tank 1. Then the cylinder carries the detection plate 5 and the pressure block 6 to rise and fall, and the moisture on the surface of the cylinder head can be blown through the blowing hole 603 to improve the use effect.

[0029] Reference Figure 2Guide grooves 101 are provided on the inner walls on both sides of the water tank 1, and guide blocks 205 are fixedly arranged on both sides of the bottom plate 2. The guide blocks 205 are slidably arranged in the corresponding guide grooves 101, and a lead screw 102 is rotatably arranged in one group of the guide grooves 101, and the guide block 205 is threadedly connected to the lead screw 102. A motor 103 for driving the lead screw 102 to rotate is fixedly arranged on the water tank 1. When in use, the lead screw 102 is driven to rotate by the motor 103, and the bottom plate 2 can be driven to slide into the water tank 1 or rise from the water tank 1, which is convenient for water testing and improves the detection effect.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automobile engine cylinder head air tightness detection device, comprising a water tank (1), on which an air tightness detector is fixedly arranged, characterized in that: Also includes: The brackets (3) are symmetrically arranged and fixedly arranged on the outer wall of the water tank (1); the tops of the two groups of brackets (3) are fixedly arranged with a first guide rail (301); the first guide rail (301) is provided with a first slide groove (302); and the first guide rail (301) is slidably provided with an adapter plate (4) for carrying the cylinder cover; lifting and lowering a bottom plate (2) disposed in the water tank (1); A top plate (204) is fixedly arranged on the top of the bottom plate (2) via a fixing rod (203), a detection plate (5) is lifted and lowered between the bottom plate (2) and the top plate (204), and a pressure block (6) for clamping the cylinder cover is arranged at the bottom of the detection plate (5).

2. The automobile engine cylinder head air tightness detection device according to claim 1, characterized in that: A second guide rail (201) corresponding to the first guide rail (301) is fixedly arranged on one end of the bottom plate (2), a second slide groove (202) is opened in the second guide rail (201), and a sliding block is fixedly arranged on the bottom of the adapter plate (4), and the sliding block is slidably arranged in the first slide groove (302) and the second slide groove (202) respectively.

3. The automobile engine cylinder head air tightness detection device according to claim 2, characterized in that: The other end of the bottom plate (2) is threadedly connected to a screw rod (8), one end of the screw rod (8) extending into the second slide groove (202) is fixedly provided with a stop block (801), the stop block (801) abuts against the sliding block, and the other end of the screw rod (8) is fixedly provided with a knob.

4. The automobile engine cylinder head air tightness detection device according to claim 1, characterized in that: The detection plate (5) is slidably connected to the fixed rod (203), a cylinder is fixedly arranged on the top plate (204), and the detection plate (5) is fixedly connected to the output end of the cylinder.

5. The automobile engine cylinder head air tightness detection device according to claim 1, characterized in that: A sealing gasket (601) is fixedly arranged on the clamping end surface of the pressure block (6), and a detection air hole (602) and a blowing hole (603) are opened in the pressure block (6). A telescopic cylinder (7) is fixedly arranged at the bottom of the detection plate (5), and a telescopic rod (701) is slidably arranged in the telescopic cylinder (7). A mounting plate is fixedly arranged at one end of the telescopic rod (701) away from the telescopic cylinder (7), and the mounting plate is fixedly connected to the pressure block (6), and a spring (702) is sleeved on the telescopic rod (701), and two ends of the spring (702) are respectively against the mounting plate and the telescopic cylinder (7).

6. The automobile engine cylinder head air tightness detection device according to claim 1, characterized in that: Guide grooves (101) are provided on the inner walls of both sides of the water tank (1), and guide blocks (205) are fixedly arranged on both sides of the bottom plate (2), the guide blocks (205) are respectively slidably arranged in the corresponding guide grooves (101), and a lead screw (102) is rotatably arranged in one group of the guide grooves (101), the guide block (205) is threadedly connected to the lead screw (102), and a motor (103) for driving the lead screw (102) to rotate is fixedly arranged on the water tank (1).

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