Device for detecting air tightness of left and right box bodies of motorcycle engine

Abstract

The utility model relates to an air tightness detection device for left and right box bodies of a motorcycle engine, which comprises a machine body, a workbench of the machine body is provided with two fixing clamps for fixing the left box body and the right box body respectively, and the top of each fixing clamp is provided with a liftable top pressing sealing mechanism. An air tightness detector and an operation panel are arranged at the top of the top pressing sealing mechanism; an air inlet mechanism, a side face sealing mechanism and a marking mechanism are arranged on the side of the fixing clamp. According to the air tightness detection device, the sealing performance of the box body to be detected is judged by detecting the change of air pressure, water tank detection is not needed, the drying step is reduced, and the operation is simple and convenient; and the detection efficiency is high, and traceability is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle engine case detection equipment, and particularly relates to an air tightness detection device for the left and right cases of a motorcycle engine. Background Technique

[0002] The left and right cases of a motorcycle engine are the core components of the engine, providing support for the internal components of the engine and are usually made of aluminum alloy. The left case is usually used to install components such as a clutch, a starter motor, and a generator; while the right case is usually used to install components such as a crankshaft, a piston, and a cylinder. Thus, the sealing performance of the left and right cases of the engine and their oil passages can directly affect the performance and lifespan of the engine. Therefore, after the left and right cases of the engine are processed, it is necessary to separately conduct sealing tests on the left case and the right case.

[0003] Currently, the sealing test is usually carried out using a test device with a water tank, that is, the left case and the right case to be tested are separately placed into the water tank, and the air tightness is observed by checking whether there are bubbles emerging; after the test, it is also necessary to blow dry or bake the moisture on their surfaces, which is cumbersome and complex, time-consuming, and has a high labor cost. In addition, this test process has no traceability function, that is, if there are sealing defects during the assembly or use of the left and right cases, it is impossible to trace whether the left case and the right case have both passed the sealing test. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies of the prior art and provide an air tightness detection device for the left and right cases of a motorcycle engine with low cost, capable of quickly detecting air tightness, and having a traceability function.

[0005] The technical solution adopted by the utility model is: an air tightness detection device for the left and right cases of a motorcycle engine, including a machine body, on the workbench of the machine body, there are two fixed clamps for respectively fixing the left case and the right case, on the top of the fixed clamp, there is a top pressing and sealing mechanism that can be lifted and lowered, on the top of the top pressing and sealing mechanism, there is an air tightness detector and an operation panel; on the side of the fixed clamp, there is an air intake mechanism, a side sealing mechanism, and a marking mechanism.

[0006] Preferably, the marking mechanism includes a marking needle and a marking drive source for controlling the reciprocating movement of the marking needle.

[0007] Preferably, the free end of the marking needle is a cone, and the tip of the cone faces the case.

[0008] Preferably, the fixed clamp includes a base, and at the bottom of the base, there are limiting convex blocks adapted to the internal shape of the case.

[0009] Preferably, the base is provided with a groove whose shape is adapted to the edge of the box, and a sealing strip is provided on the groove.

[0010] Preferably, the top pressing sealing mechanism includes a pressing plate, a lifting drive source for controlling the lifting of the pressing plate, and a connecting frame connecting the pressing plate and the lifting drive source.

[0011] Preferably, the lifting drive source includes a lifting push rod connected to the connecting frame and a lifting cylinder for controlling the lifting of the lifting push rod, and two guide rods symmetrically distributed on the side of the lifting push rod.

[0012] Preferably, the connecting frame includes a connecting plate and two symmetrically distributed connecting vertical plates disposed at the bottom of the connecting plate.

[0013] Preferably, the edge of the lower pressure plate is provided with a plurality of limiting protection pressure rods, the upper end of which is connected to the connecting plate and the lower end protrudes out of the lower pressure plate.

[0014] Preferably, the air intake mechanism includes an air intake pipe and an air intake drive source for controlling the reciprocating motion of the air intake pipe.

[0015] Preferably, the side sealing mechanism includes a side sealing plate and a side sealing drive source for controlling the reciprocating motion of the side sealing plate.

[0016] Preferably, the workbench is provided with a support frame for installing the top pressing sealing mechanism.

[0017] This utility model has the following advantages compared with the prior art:

[0018] 1. The airtightness testing device of this utility model first seals the test chamber using a fixing clamp, a top pressing sealing mechanism, and a side sealing mechanism. Then, it introduces gas into the test chamber using an air intake mechanism. The sealing performance of the test chamber is judged by detecting the change in air pressure. It eliminates the need for water tank testing, reduces the drying step, and simplifies operation. In addition, the airtightness testing device is a dual-station setup, which can simultaneously test the airtightness of the left and right chambers, resulting in high testing efficiency.

[0019] 2. The airtightness testing device of this utility model is also equipped with a marking mechanism. After the left and right boxes are tested, if the test results are qualified, the marking mechanism will be triggered to mark the boxes for easy traceability later. In addition, the mark is only a small dot and does not affect the appearance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2This is a schematic diagram of the top-pressing sealing mechanism installed on the workbench.

[0022] Figure 3 This is a schematic diagram showing the left and right boxes placed on fixed clamps respectively.

[0023] Figure 4 This is a schematic diagram showing the positions of the limit protection pressure bar, the lower pressure plate, and the connecting frame.

[0024] Figure 5 This is a schematic diagram showing the positions of the pressure plate and the connecting frame.

[0025] Figure 6 This is a schematic diagram of the marking mechanism.

[0026] Figure 7 This is a schematic diagram of the intake mechanism.

[0027] The labels in the diagram indicate:

[0028] 1-Main body, 11-Air tightness detector, 12-Operating panel, 13-Workbench, 14-Support frame, 2-Left housing, 3-Right housing, 4-Fixing clamp, 41-Base, 42-Limiting protrusion, 43-Groove, 5-Top pressing sealing mechanism, 51-Pressing plate, 52-Lifting drive source, 521-Lifting push rod, 522-Lifting cylinder, 53-Connecting frame, 531-Connecting plate, 532-Connecting vertical plate, 54-Guide rod, 55-Limiting protection pressure rod, 6-Intake mechanism, 61-Intake pipe, 62-Intake drive source, 7-Side sealing mechanism, 71-Side sealing plate, 72-Side sealing drive source, 8-Marking mechanism, 81-Marking needle, 82-Marking drive source, 9-Alarm. Detailed Implementation

[0029] To enhance understanding of this utility model, it will be further described in detail below with reference to embodiments and accompanying drawings. This utility model can be implemented in the following ways:

[0030] Reference Figure 1-7 A motorcycle engine left and right housing airtightness testing device includes a body 1. Two fixing clamps 4 are mounted on a workbench 13 of the body 1, each respectively fixing a left housing 2 and a right housing 3. A liftable top-pressing sealing mechanism 5 is mounted on the top of each fixing clamp 4. An airtightness tester 11 and an operation panel 12 are mounted on the top of the top-pressing sealing mechanism 5. An air intake mechanism 6, a side sealing mechanism 7, and a marking mechanism 8 are located on the sides of the fixing clamps 4. This invention first seals the housing to be tested using the fixing clamps 4, the top-pressing sealing mechanism 5, and the side sealing mechanism 7. Then, the air intake mechanism 6 introduces gas into the housing, and the sealing performance of the housing is determined by detecting changes in air pressure.

[0031] Specifically, refer to Figure 2 The fixing fixture 4 includes a base 41, the bottom of which is provided with a limiting protrusion 42 adapted to the internal shape of the box. The limiting protrusion 42 can prevent the box from shifting during testing, affecting the test results. In addition, the height of the limiting protrusion 42 needs to be adapted to the box. When the box is fitted onto the limiting protrusion 42, the top of the limiting protrusion 42 just abuts against the top of the box, preventing the box from being crushed by the top pressing sealing mechanism 5. The base 41 is provided with a groove 43 whose shape is adapted to the edge of the box. A sealing strip (not shown in the figure) is provided on the groove 43. When the box is fitted onto the limiting protrusion 42, the bottom edge of the box just abuts against the sealing strip.

[0032] The workbench 13 is equipped with a support frame 14 for mounting the top pressing sealing mechanism 5. The top pressing sealing mechanism 5 includes a pressing plate 51, a lifting drive source 52 for controlling the lifting of the pressing plate 51, and a connecting frame 53 connecting the pressing plate 51 and the lifting drive source 52. The lifting drive source 52 includes a lifting push rod 521 connected to the connecting frame 53 and a lifting cylinder 522 for controlling the lifting of the lifting push rod 521. The lifting cylinder 522 controls the lifting of the lifting push rod 521, which pushes the connecting frame 53, causing the pressing plate 51 to rise or fall, thus moving the pressing plate 51 closer to or further away from the housing. Two symmetrically distributed guide rods 54 are provided on the side of the lifting push rod 521 to maintain balance during the lifting of the connecting frame 53. Furthermore, refer to... Figure 5 The connecting frame 53 includes a connecting plate 531 and two symmetrically distributed connecting vertical plates 532 disposed at the bottom of the connecting plate 531. The symmetrical distribution of the two connecting vertical plates 532 can, firstly, further ensure that the lower pressure plate 51 remains balanced during the pressing process, and secondly, can balance the force on the top of the box when it is pressed, preventing air leakage.

[0033] Reference Figure 4 The lower pressure plate 51 is provided with several limiting protection rods 55 on its edge. The upper end of each limiting protection rod 55 is connected to the connecting plate 531, and the lower end protrudes outside the lower pressure plate 51. The height of the limiting protection rod 55 is adapted to the height of the housing. That is, when the lower pressure plate 51 is pressed down to the top of the housing by the lifting drive source 52, the free end of the limiting protection rod 55 just abuts against the top of the base 41, thereby physically limiting the lower limit of the descent of the lower pressure plate 51 and preventing the lifting drive source 52 from damaging the housing due to malfunction.

[0034] Reference Figure 2The side sealing mechanism 7 includes a side sealing plate 71 and a side sealing drive source 72 that controls the reciprocating motion of the side sealing plate 71. The side sealing drive source 72 is a cylinder. The side sealing plate 71 has an end face on the side facing the housing, the shape and size of which are adapted to the side of the housing to prevent gas leakage.

[0035] Reference Figure 7 The air intake mechanism 6 includes an air intake pipe 61 and an air intake drive source 62 that controls the reciprocating motion of the air intake pipe 61. The air intake drive source 62 is a cylinder. During testing, after the top pressing sealing mechanism 5, the side sealing mechanism 7, and the fixing clamp 4 work together to fix the housing, the air intake mechanism 6 is activated, and the air intake drive source 62 controls the air intake pipe 61 to extend into the air intake port of the housing for testing.

[0036] The marking mechanism 8 includes a marking needle 81 and a marking drive source 82 that controls the reciprocating movement of the marking needle 81. The marking drive source 82 is a cylinder. The free end of the marking needle 81 is a cone, with the tip of the cone facing the housing. After the left housing 2 and the right housing 3 have been inspected, if the inspection result is qualified, the marking mechanism 8 will be triggered to mark the housing for easy traceability later; in addition, the mark is only a small dot and does not affect its appearance.

[0037] Working principle: First, place the left engine housing 2 and right engine housing 3 onto the bases 41 of the corresponding two fixing clamps 4. Then, set the parameters on the operation panel 12 and start the equipment. The lifting drive source 52 controls the connecting frame 53 to drive the lower pressure plate 51 to press down, and the side sealing drive source 72 drives the side sealing plate 71 to move closer to the housing. At the same time, the intake drive source 62 drives the intake pipe 61 to insert into the air inlet of the housing. Then, the equipment is started to automatically detect the air tightness of the housing. The 0.1 MPa inflation pressure is used to detect the chamber, and the 0.3 MPa pressure is used to detect the oil passage. If the test is qualified, the marking drive source 82 drives the marking needle 81 to automatically mark the housing; if it is unqualified, the alarm 9 will sound an alarm.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the airtightness of the left and right housings of a motorcycle engine, characterized in that, The machine includes a body (1), and two fixing clamps (4) are provided on the workbench (13) of the body (1), which respectively fix the left box (2) and the right box (3). The top of the fixing clamp (4) is provided with a liftable top pressing sealing mechanism (5). The top of the top pressing sealing mechanism (5) is provided with an air tightness detector (11) and an operation panel (12). The side of the fixing clamp (4) is provided with an air intake mechanism (6), a side sealing mechanism (7) and a marking mechanism (8).

2. The motorcycle engine left and right housing airtightness testing device according to claim 1, characterized in that, The marking mechanism (8) includes a marking needle (81) and a marking drive source (82) for controlling the reciprocating movement of the marking needle (81).

3. The motorcycle engine left and right housing airtightness testing device according to claim 2, characterized in that, The free end of the marking needle (81) is a cone, with the tip of the cone facing the box.

4. The motorcycle engine left and right housing airtightness testing device according to any one of claims 1-3, characterized in that, The fixing clamp (4) includes a base (41), and the bottom of the base (41) is provided with a limiting protrusion (42) that is adapted to the internal shape of the box.

5. The motorcycle engine left and right housing airtightness testing device according to claim 4, characterized in that, The base (41) is provided with a groove (43) whose shape is adapted to the edge of the box, and a sealing strip is provided on the groove (43).

6. The motorcycle engine left and right housing airtightness testing device according to claim 1, 2, 3, or 5, characterized in that, The top pressing sealing mechanism (5) includes a pressing plate (51), a lifting drive source (52) for controlling the lifting of the pressing plate (51), and a connecting frame (53) connecting the pressing plate (51) and the lifting drive source (52).

7. The motorcycle engine left and right housing airtightness testing device according to claim 6, characterized in that, The connecting frame (53) includes a connecting plate (531) and two symmetrically distributed connecting vertical plates (532) disposed at the bottom of the connecting plate (531).

8. The motorcycle engine left and right housing airtightness testing device according to claim 7, characterized in that, The lower pressure plate (51) is provided with several limiting protection pressure rods (55) on its edge. The upper end of the limiting protection pressure rod (55) is connected to the connecting plate (531), and the lower end protrudes out of the lower pressure plate (51).

9. The motorcycle engine left and right housing airtightness testing device according to claim 1, 2, 3, 5, 7, or 8, characterized in that, The air intake mechanism (6) includes an air intake pipe (61) and an air intake drive source (62) that controls the reciprocating motion of the air intake pipe (61).

10. The motorcycle engine left and right housing airtightness testing device according to claim 1, 2, 3, 5, 7, or 8, characterized in that, The side sealing mechanism (7) includes a side sealing plate (71) and a side sealing drive source (72) for controlling the reciprocating motion of the side sealing plate (71).

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