Camshaft oil duct airtightness detection tool

Abstract

The utility model relates to the technical field of camshaft oil duct airtightness detection tools, in particular to a camshaft oil duct airtightness detection tool, which is characterized in that camshaft oil duct airtightness detection mainly depends on air pressure change to judge the airtightness of an oil duct, an adjusting mechanism is started, and the position of a clamping mechanism is adjusted according to the length of the camshaft oil duct. The clamping mechanism is of a U-shaped structure, plugs are used for blocking other through holes in the camshaft, the moving mechanism is started, the position of the supporting mechanism is adjusted according to the length of an oil duct of the camshaft, the air tightness detection mechanism is started, air is conveyed into the oil duct of the camshaft, the numerical value of a pressure gauge is observed, observation is carried out again after one time, and when the numerical values of two times are not changed, the air tightness detection mechanism is started. Judging that the air tightness is good, and if the gas pressure is obviously reduced, indicating that the oil duct leaks; comprising a fixing mechanism; the device further comprises an adjusting mechanism, a clamping mechanism, a moving mechanism, a supporting mechanism and an air tightness detection mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of airtightness detection tools for camshaft oil passages, and particularly relates to an airtightness detection tool for camshaft oil passages. Background Art

[0002] The camshaft oil passage plays a crucial role in the engine, ensuring proper lubrication of the camshaft, thus maintaining its normal function and extending its service life. It is widely used in internal combustion engines, hydraulic machinery, and construction machinery, and is an indispensable key component of these devices. Before use, the airtightness of the camshaft oil passage must be detected.

[0003] Existing airtightness detection devices, such as the camshaft oil passage airtightness detection device disclosed in the utility model patent with the application number CN202221991251.7 and the camshaft oil passage airtightness detection device disclosed in the utility model patent with the application number CN201320644005.9, can both achieve the detection of the airtightness of the camshaft oil passage.

[0004] However, it has been found in the long-term use process that when detecting the airtightness of the camshaft oil passage, due to the different lengths of the camshafts, it is easy to cause the camshaft to sag downward without support during support, or the upper part of the camshaft is not squeezed and fixed, which affects the airtightness detection of the camshaft oil passage. Therefore, a new device is provided to improve the problems encountered. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an airtightness detection tool for camshaft oil passages, which ensures the stability of the camshaft during the detection process by fixing the camshaft oil passage and improves the accuracy of the airtightness detection of the camshaft oil passage.

[0006] An airtightness detection tooling for a camshaft oil passage of the utility model includes a fixing mechanism; it also includes an adjusting mechanism, a clamping mechanism, a moving mechanism, a supporting mechanism and an airtightness detection mechanism. The adjusting mechanism is installed on the fixing mechanism to adjust the distance according to the length of the camshaft. The clamping mechanism is installed on the fixing mechanism to clamp the camshaft. The moving mechanism is installed on the fixing mechanism to move the supporting mechanism. The supporting mechanism is installed on the moving mechanism to support the camshaft. The airtightness detection mechanism is installed on the fixing mechanism to detect the airtightness of the camshaft oil passage; the airtightness detection of the camshaft oil passage mainly depends on the air pressure change to judge the sealing of the oil passage. Start the adjusting mechanism and adjust the position of the clamping mechanism according to the length of the camshaft oil passage. By adjusting the clamping mechanism, the airtightness of camshaft oil passages with different lengths can be detected. The camshaft oil passage is clamped by the clamping mechanism. The clamping mechanism is of a U-shaped structure. Use a plug to block other through holes on the camshaft. Start the moving mechanism and adjust the position of the supporting mechanism according to the length of the camshaft oil passage. The supporting mechanism provides a stability when clamping the camshaft oil passage and can support the longitudinal pressure received by the camshaft to ensure the stability of the camshaft oil passage. Open the airtightness detection mechanism, send air into the interior of the camshaft oil passage, observe the value of the pressure gauge, wait for a while and observe again. When the two values remain unchanged, it is judged that the airtightness is good. If the gas pressure drops significantly, it indicates that there is a leakage problem in the oil passage.

[0007] Preferably, the fixing mechanism includes a workbench and a support frame. There is a groove on the workbench, and the support frame is fixedly installed at the bottom end of the workbench; the support frame plays a role in fixedly supporting the workbench, and the workbench plays a role in supporting all operating equipment.

[0008] Preferably, the adjusting mechanism includes a first clamping plate, a first motor, a driving wheel and a driven wheel. The first clamping plate is installed at the top end of the workbench. The first motor is installed at the side end of the first clamping plate, and a driving wheel is arranged at the output end of the first motor. The driving wheel is installed at the bottom end of the first clamping plate, and the driven wheel is installed at the bottom end of the first clamping plate; start the first motor to make the driving wheel slide in the groove on the workbench, drive the first clamping plate to slide on the workbench, and can flexibly adjust the distance between the clamping mechanisms to adapt to the detection of camshaft oil passages with different lengths, increasing the applicability and practicability of the device.

[0009] Preferably, the clamping mechanism includes a second clamping plate, two vertical plates, two sleeves and two sections of pipes. The second clamping plate is fixedly installed at the top of the workbench. The two vertical plates are both installed at the top of the workbench. One end of each of the two sleeves is connected to the two ends of the two pipes respectively, and the other end is connected to the two ports of the equipment. The other two ends of the pipes are respectively connected to the airtightness detection mechanism through the two vertical plates. The camshaft is clamped by the cooperation of the first clamping plate and the second clamping plate. The two ends of the oil passage of the camshaft are connected to the two ports of the two ends of the two pipes through the two sleeves. The two vertical plates support the two ends of the pipes to prevent shaking, and can stably fix the camshaft, ensuring that the oil passage of the camshaft will not move or shake during the airtightness detection process, thereby ensuring the accuracy and reliability of the detection.

[0010] Preferably, the moving mechanism includes a slide rail, a rack, a slider and a second motor. The slide rail is installed at the top of the workbench. The rack is installed on the slide rail. The slider is slidably installed on the slide rail. The second motor is installed at the side end of the slider, and a gear is provided on the output end of the second motor. The second motor is started to drive the gear and the rack to engage and drive the slider to slide on the slide rail, so that the support mechanism moves smoothly on the slider and the position of the support mechanism is adjusted.

[0011] Preferably, the support mechanism includes an electric push rod and a support block. The electric push rod is installed at the top of the slider. The support block is installed on the electric push rod. The electric push rod is started to support or press the middle position of the camshaft through the support block, balance the pressure in the longitudinal direction, and ensure the stability of the oil passage of the camshaft.

[0012] Preferably, the airtightness detection mechanism includes a gas cylinder and a pressure gauge. The gas cylinder is installed at the top of the workbench. The pressure gauge is installed on the pipe. The gas cylinder is opened to fill the pipe with gas at a certain pressure, and the air is conveyed into the interior of the oil passage of the camshaft. The value of the pressure gauge is observed, and then observed again after waiting for a while. When the two values remain unchanged, it is judged that the airtightness is good. If the pressure gauge shows an obvious drop, it means that there is a leakage problem in the oil passage.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The airtightness detection of the camshaft oil passage mainly relies on the change in air pressure to judge the tightness of the oil passage. Start the adjustment mechanism, adjust the position of the clamping mechanism according to the length of the camshaft oil passage. By adjusting the clamping mechanism, the airtightness of camshaft oil passages with different lengths can be detected. The camshaft oil passage is clamped by the clamping mechanism, and the clamping mechanism is of a U-shaped structure. Use plugs to block other through holes on the camshaft. Start the moving mechanism and adjust the position of the supporting mechanism according to the length of the camshaft oil passage. The supporting mechanism provides stability when clamping the camshaft oil passage and can support the longitudinal pressure received by the camshaft to ensure the stability of the camshaft oil passage. Open the airtightness detection mechanism, send air into the interior of the camshaft oil passage, observe the value of the pressure gauge, and observe again after waiting for a while. When the two values remain unchanged, it is judged that the airtightness is good. If the gas pressure drops significantly, it indicates that there is a leakage problem in the oil passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an isometric structural view of the present utility model;

[0015] Figure 2 is an isometric structural view of the fixing mechanism, adjustment mechanism and moving mechanism of the present utility model;

[0016] Figure 3 is an isometric structural view of the clamping mechanism of the present utility model;

[0017] Figure 4 is an isometric structural view of the supporting mechanism and airtightness detection mechanism of the present utility model.

[0018] Reference numerals in the drawings: 01, fixing mechanism; 11, workbench; 12, support frame; 02, adjustment mechanism; 21, first clamping plate; 22, first motor; 23, driving wheel; 24, driven wheel; 03, clamping mechanism; 31, second clamping plate; 32, vertical plate; 33, sleeve; 34, pipeline; 04, moving mechanism; 41, slide rail; 42, rack; 43, slider; 44, second motor; 05, supporting mechanism; 51, electric push rod; 52, support block; 06, airtightness detection mechanism; 61, gas cylinder; 62, pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0020] Embodiment 1

[0021] It includes a fixing mechanism 01; it also includes an adjusting mechanism 02, a clamping mechanism 03, a moving mechanism 04, a supporting mechanism 05 and an airtightness detection mechanism 06. The adjusting mechanism 02 is installed on the fixing mechanism 01 to adjust the distance according to the length of the camshaft. The clamping mechanism 03 is installed on the fixing mechanism 01 to clamp the camshaft. The moving mechanism 04 is installed on the fixing mechanism 01 to move the supporting mechanism 05. The supporting mechanism 05 is installed on the moving mechanism 04 to support the camshaft. The airtightness detection mechanism 06 is installed on the fixing mechanism 01 to detect the airtightness of the camshaft;

[0022] The fixing mechanism 01 includes a workbench 11 and a support frame 12. There is a groove on the workbench 11, and the support frame 12 is fixedly installed at the bottom end of the workbench 11. The adjusting mechanism 02 includes a first clamping plate 21, a first motor 22, a driving wheel 23 and a driven wheel 24. The first clamping plate 21 is installed at the top end of the workbench 11. The first motor 22 is installed at the side end of the first clamping plate 21, and a driving wheel 23 is provided on the output end of the first motor 22. The driving wheel 23 is installed at the bottom end of the first clamping plate 21, and the driven wheel 24 is installed at the bottom end of the first clamping plate 21. The clamping mechanism 03 includes a second clamping plate 31, two vertical plates 32, two sleeves 33 and two sections of pipes 34. The second clamping plate 31 is fixedly installed at the top end of the workbench 11. The two vertical plates 32 are both installed at the top end of the workbench 11. One end of each of the two sleeves 33 is connected to both ends of the two pipes 34 respectively, and the other end is connected to both ports of the equipment. The other two ends of the pipes 34 are respectively connected to the airtightness detection mechanism 06 through the two vertical plates 32. The moving mechanism 04 includes a slide rail 41, a rack 42, a slider 43 and a second motor 44. The slide rail 41 is installed at the top end of the workbench 11. The rack 42 is installed on the slide rail 41. The slider 43 is slidably installed on the slide rail 41. The second motor 44 is installed at the side end of the slider 43, and a gear is provided on the output end of the second motor 44. The supporting mechanism 05 includes an electric push rod 51 and a supporting block 52. The electric push rod 51 is installed at the top end of the slider 43, and the supporting block 52 is installed on the electric push rod 51.

[0023] Embodiment 2

[0024] As Figures 1 to 4 shown, on the basis of Embodiment 1, it further includes an airtightness detection mechanism 06:

[0025] The airtightness detection mechanism 06 includes a gas cylinder 61 and a pressure gauge 62. The gas cylinder 61 is installed at the top end of the workbench 11, and the pressure gauge 62 is installed on the pipe 34.

[0026] A kind of airtightness detection tooling for the camshaft oil passage of the utility model. When it works, first start the first motor 22 to make the driving wheel 23 slide in the groove on the workbench 11, drive the first clamping plate 21 to slide on the workbench 11, and can flexibly adjust the distance between the clamping mechanisms 03 to adapt to the detection of camshaft oil passages of different lengths, increasing the applicability and practicability of the device. Then, clamp the camshaft oil passage through the cooperation of the first clamping plate 21 and the second clamping plate 31. Connect the two ends of the camshaft oil passage and the two ports of the two end pipes 34 through two sleeves 33. The two vertical plates 32 support the two end pipes to prevent shaking, and can stably fix the camshaft oil passage to ensure that the camshaft will not move or shake during the airtightness detection, thus ensuring the accuracy and reliability of the detection. Then start the second motor 44 to make the gear and the rack 42 engage and drive to drive the slider 43 to slide on the slide rail 41, so that the supporting mechanism 05 moves smoothly on the slider 43 and adjusts the position of the supporting mechanism 05. Then start the electric push rod 51 to support or press the position between the oil passages in the camshaft through the supporting block 52 to balance the pressure in the longitudinal direction and ensure the stability of the camshaft oil passage. Then open the gas cylinder 61 to fill the pipe 34 with gas at a certain pressure, transport the air to the inside of the camshaft oil passage, observe the value of the pressure gauge 62, wait for a while and observe again. When the two values are unchanged, it is judged that the airtightness is good. If the pressure gauge 62 shows an obvious decrease, it means that there is a leakage problem in the oil passage.

[0027] The first motor 22, the second motor 44 and the electric push rod 51 of the utility model are purchased on the market. Technical personnel in this industry only need to install and operate according to the attached operation manuals, without the need for creative labor of technical personnel in this field.

[0028] The above are only the preferred embodiments of the utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A camshaft oil passage airtightness detection tooling, comprising a fixing mechanism (01); characterized in that, It also includes an adjusting mechanism (02), a clamping mechanism (03), a moving mechanism (04), a supporting mechanism (05) and an airtightness detection mechanism (06). The adjusting mechanism (02) is installed on the fixing mechanism (01) to adjust the distance according to the length of the camshaft. The clamping mechanism (03) is installed on the fixing mechanism (01) to clamp the camshaft. The moving mechanism (04) is installed on the fixing mechanism (01) to move the supporting mechanism (05). The supporting mechanism (05) is installed on the moving mechanism (04) to support the camshaft. The airtightness detection mechanism (06) is installed on the fixing mechanism (01) to detect the airtightness of the camshaft.

2. The airtightness detection tooling for a camshaft oil passage according to claim 1, wherein The fixing mechanism (01) includes a workbench (11) and a support frame (12). A groove is provided on the workbench (11), and the support frame (12) is fixedly installed at the bottom end of the workbench (11).

3. The airtightness detection tooling for a camshaft oil passage according to claim 2, characterized in that, The adjusting mechanism (02) includes a first clamping plate (21), a first motor (22), a driving wheel (23) and a driven wheel (24). The first clamping plate (21) is installed at the top end of the workbench (11). The first motor (22) is installed at the side end of the first clamping plate (21), and a driving wheel (23) is provided at the output end of the first motor (22). The driving wheel (23) is installed at the bottom end of the first clamping plate (21), and the driven wheel (24) is installed at the bottom end of the first clamping plate (21).

4. The airtightness detection tooling for a camshaft oil passage according to claim 2, characterized in that, The clamping mechanism (03) includes a second clamping plate (31), two vertical plates (32), two sleeves (33) and two sections of pipes (34). The second clamping plate (31) is fixedly installed at the top end of the workbench (11). The two vertical plates (32) are both installed at the top end of the workbench (11). One end of each of the two sleeves (33) is connected to both ends of the two pipes (34) respectively, and the other end is connected to both ports of the equipment. The other two ends of the pipes (34) are respectively connected to the airtightness detection mechanism (06) through the two vertical plates (32).

5. The airtightness detection tooling for a camshaft oil passage according to claim 2, characterized in that, The moving mechanism (04) includes a slide rail (41), a rack (42), a slider (43) and a second motor (44). The slide rail (41) is installed at the top end of the workbench (11). The rack (42) is installed on the slide rail (41). The slider (43) is slidably installed on the slide rail (41). The second motor (44) is installed at the side end of the slider (43), and a gear is provided at the output end of the second motor (44).

6. The airtightness detection tooling for a camshaft oil passage according to claim 5, characterized in that, The supporting mechanism (05) includes an electric push rod (51) and a supporting block (52). The electric push rod (51) is installed at the top end of the slider (43), and the supporting block (52) is installed on the electric push rod (51).

7. The airtightness detection tooling for a camshaft oil passage according to claim 4, characterized in that, The airtightness detection mechanism (06) includes a gas cylinder (61) and a pressure gauge (62). The gas cylinder (61) is installed at the top end of the workbench (11), and the pressure gauge (62) is installed on the pipe (34).

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