Semi-automatic rocker arm assembly assembling table

Abstract

The invention discloses a rocker arm assembly semi-automatic assembly table, and relates to the technical field of engine rocker arm assembly assembly.The rocker arm assembly semi-automatic assembly table comprises a workbench assembly, an electric appliance control box is arranged at the workbench assembly, a main body mechanism assembly is installed at the top of the workbench assembly, and an equipment hood assembly is fixedly installed at the top of the workbench assembly; the equipment hood assembly is located outside the main body mechanism assembly, and a smooth goods shelf assembly is arranged on the front face of the workbench assembly; the main body mechanism assembly is composed of a bottom plate linear guide rail assembly, an exhaust rocker arm assembling assembly, an electromagnetic valve assembly, an air inlet rocker arm assembling assembly, an adjusting bolt tightening assembly and a nut tightening assembly. Compared with a traditional assembling table, the assembling table has the advantages that the functions of adjusting the height size of the bolt to prevent mistakes and detecting the air tightness are added, the production and machining quality of products is greatly improved, air inlet rocker arms and exhaust rocker arms can be synchronously assembled and machined at double stations, and the machining efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of engine rocker arm assembly assembly, in particular to a semi-automatic assembly platform for a rocker arm assembly. Background Art

[0002] The engine rocker arm assembly is a crucial component in automotive engines, playing a key role in the engine's valvetrain. As an integral part of the engine, its performance and reliability directly impact its efficiency and service life. Proper maintenance and inspection ensure the proper functioning of the rocker arm assembly, thereby guaranteeing stable engine operation. The engine rocker arm assembly primarily consists of an intake rocker arm assembly, an exhaust rocker arm assembly, a rocker arm shaft, a rocker arm support, and high-strength bolts. During assembly, conventional production involves manual assembly of the intake and exhaust rocker arm assemblies using an assembly table. The assembly primarily involves adjusting the bolt ball and socket assembly and tightening the nut.

[0003] However, in the previous assembly process, it was difficult to manually adjust the bolt height to prevent errors, and the adjustment accuracy was poor, resulting in low quality of assembled products. In addition, there was no air tightness detection function, and it was impossible to ensure that the internal oil channel of the rocker arm was unobstructed to ensure the subsequent rocker arm lubrication function. At the same time, the work station was single, resulting in low assembly efficiency. Therefore, there is an urgent need for a semi-automatic assembly table for rocker arm assembly to solve the above technical problems. Summary of the Invention

[0004] The present invention discloses a semi-automatic assembly platform for a rocker arm assembly. The semi-automatic assembly platform is provided with a main mechanism component and an air tightness detection device, so that when working, two rocker arm workpieces can be respectively mounted on two air detection positioning core shafts, and the rocker arm workpieces are auxiliaryly fixed by the cooperation between a side push cylinder, a side push pressure plate, an oblique push cylinder and an oblique push block. The two rocker arm workpieces are automatically suspended into the adjustment bolt assembly for assembly through a guide rail vertical plate assembly, a solenoid valve assembly, an adjustment bolt tightening assembly and a nut tightening assembly. The bolt tightening height is adjusted by a servo electric batch program to ensure the key item size required by the drawing, the bolt height tolerance is adjusted, and the nut is automatically tightened by the nut tightening assembly to ensure the tightening torque of the nut required by the drawing, thereby preliminarily improving the production and processing quality of the product.

[0005] And during operation, the air detection positioning core shaft, the pressure sensor and the pressure alarm can be coordinated, that is, the air supply source connected to the air source hole of the positioning core shaft can be coordinated with the air supply source pipeline to supply air to the rocker arm lubricating oil channel inside the rocker arm workpiece. After the air supply is completed, the pressure sensor is used to detect the pressure change in the air supply source pipeline in real time. If the pressure index changes and the change in the pressure difference reaches the set value, the electrical signal can be transmitted to the pressure alarm, and the pressure alarm will implement the alarm measure and shut down. If the pressure index does not change, it indicates that the oil channel inside the rocker arm is unobstructed, and the rocker arm lubrication function can be guaranteed subsequently, which further effectively improves the production and processing quality of the product.

[0006] During operation, due to the presence of the exhaust rocker arm assembly component and the intake rocker arm assembly component, as well as other matching components, double-station synchronous processing can be performed, that is, two different rocker arm workpieces are respectively adapted and fixed to the exhaust rocker arm assembly component and the intake rocker arm assembly component, and the exhaust rocker arm assembly component and the intake rocker arm assembly component, as well as other matching components, process the two rocker arm workpieces synchronously, thereby effectively improving the production and processing efficiency of the product; in summary, the problems in the background technology are solved.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] A semi-automatic assembly platform for a rocker arm assembly of the present invention comprises a workbench assembly, wherein the workbench assembly is provided with an electrical control box, a main mechanism assembly is mounted on the top of the workbench assembly, an equipment cover assembly is fixedly mounted on the top of the workbench assembly, and the equipment cover assembly is located outside the main mechanism assembly, and a flow shelf assembly is provided on the front of the workbench assembly;

[0009] The main mechanism assembly consists of a base plate linear guide assembly, an exhaust rocker arm assembly assembly, a solenoid valve assembly, an intake rocker arm assembly assembly, an adjustment bolt tightening assembly, and a nut tightening assembly. The exhaust rocker arm assembly assembly and the intake rocker arm assembly assembly are designed to be symmetrically distributed.

[0010] An air tightness detection device is provided with two groups, and the two groups of air tightness detection devices are located at the exhaust rocker arm assembly component and the intake rocker arm assembly component. The air tightness detection device consists of an air detection positioning core shaft, a pressure sensor and a pressure alarm.

[0011] Furthermore, the base plate linear guide rail assembly is located on top of the workbench assembly, and the exhaust rocker arm assembly assembly is located on top of the base plate linear guide rail assembly.

[0012] Furthermore, the solenoid valve assembly is located on the back side of the exhaust rocker arm assembly assembly, and the intake rocker arm assembly is located on the top of the base plate linear guide rail assembly.

[0013] Furthermore, the adjusting bolt tightening assembly is located at the exhaust rocker arm assembly assembly and the intake rocker arm assembly assembly, and the nut tightening assembly is located on one side of the adjusting bolt tightening assembly.

[0014] Furthermore, the intake rocker arm assembly assembly includes a telescopic support shaft, a guide seat, an oblique thrust block, a height positioning column, a base plate, a side thrust plate, a side thrust cylinder, a vertical plate and an oblique thrust cylinder. The base plate is located at the top of the workbench assembly, and the guide seat, height positioning column and vertical plate are all located at the top of the base plate. The side thrust cylinder is installed on the front side of the vertical plate, and the telescopic end of the side thrust cylinder is connected to the side thrust plate. The oblique thrust cylinder is installed on the top of the base plate, and the oblique thrust cylinder is located on the back side of the vertical plate. The telescopic end of the oblique thrust cylinder is connected to the oblique thrust block, and the top of the oblique thrust block is movably in contact with the telescopic support shaft, and the telescopic support shaft is located inside the guide seat, and the top end of the telescopic support shaft movably passes through the top of the guide seat. The structure of the exhaust rocker arm assembly assembly is the same as that of the intake rocker arm assembly assembly.

[0015] Furthermore, the top end of the oblique push block is designed to be inclined, and the upper inclined surface of the oblique push block is in movable contact with the bottom end of the telescopic support shaft.

[0016] Furthermore, the air tightness detection device includes an air detection positioning core shaft, a pressure sensor and a pressure alarm. The air detection positioning core shaft is fixedly installed on the front side of the vertical plate. The air detection positioning core shaft is movably sleeved with a rocker arm workpiece. The pressure sensor and pressure alarm are both fixedly installed on the back side of the vertical plate through mounting parts. The pressure sensor is electrically connected to the pressure alarm through a wire.

[0017] Furthermore, a rocker arm lubricating oil channel is provided inside the rocker arm workpiece, a positioning core shaft air source hole is provided inside the air inspection positioning core shaft, and the positioning core shaft air source hole is connected to the rocker arm lubricating oil channel inside the rocker arm workpiece, and the positioning core shaft air source hole is externally connected to an air source pipeline, and the air source pipeline externally connected to the positioning core shaft air source hole is connected to a pressure sensor.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This technical solution is provided with a main mechanism assembly and an air tightness detection device, so that when working, the two rocker arm workpieces can be respectively set on the two air detection positioning core shafts, and the rocker arm workpieces are assisted in fixing by the cooperation between the side push cylinder, the side push pressure plate, the oblique push cylinder and the oblique push block. The two rocker arm workpieces are automatically suspended into the adjustment bolt assembly through the guide rail vertical plate assembly, the solenoid valve assembly, the adjustment bolt tightening assembly and the nut tightening assembly. The servo electric batch program controls the adjustment of the bolt tightening height to ensure the key item dimensions required by the drawing, adjust the bolt height tolerance, and then the nut is automatically tightened by the nut tightening assembly to ensure the tightening torque of the nut required by the drawing, thereby preliminarily improving the production and processing quality of the product.

[0020] 2. The technical solution is provided with a main mechanism component and an air tightness detection device, so that when working, the air detection positioning core shaft, the pressure sensor and the pressure alarm can be coordinated, that is, the air supply source connected to the air source hole of the positioning core shaft cooperates with the air supply source pipeline to supply air to the rocker arm lubricating oil channel inside the rocker arm workpiece. After the air supply is completed, the pressure change in the air supply source pipeline is detected in real time by the pressure sensor. If the pressure index changes and the change in the pressure difference value reaches the set value, the electrical signal can be transmitted to the pressure alarm, and the pressure alarm implements the alarm measure and shuts down. If the pressure index does not change, it indicates that the oil channel inside the rocker arm is unobstructed, and the rocker arm lubrication function can be guaranteed subsequently, further effectively improving the production and processing quality of the product.

[0021] 3. This technical solution is provided with a main mechanism component and an air tightness detection device, so that during operation, due to the provision of an exhaust rocker arm assembly component and an intake rocker arm assembly component, as well as other supporting components, double-station synchronous processing can be performed, that is, two different rocker arm workpieces are respectively adapted and fixed to the exhaust rocker arm assembly component and the intake rocker arm assembly component, and the exhaust rocker arm assembly component and the intake rocker arm assembly component, as well as other supporting components, synchronously process the two rocker arm workpieces, thereby effectively improving the production and processing efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the main mechanism components of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the main mechanism component of the present invention from another perspective;

[0026] Figure 4 This is a schematic diagram of the exhaust rocker arm assembly structure of the present invention;

[0027] Figure 5 This is a schematic structural diagram of the intake rocker arm assembly component of the present invention;

[0028] Figure 6 This is a schematic diagram of the explosion structure for installing the rocker arm workpiece of the present invention;

[0029] Figure 7 This is a schematic diagram of the height positioning column structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the gas detection positioning core shaft of the present invention;

[0031] Figure 9 It is a schematic diagram of the dissected structure of the rocker arm lubricating oil channel position of the present invention.

[0032] In the figure: 1. Workbench assembly; 2. Electrical control box; 3. Main mechanism assembly; 301. Bottom plate linear guide assembly; 302. Exhaust rocker arm assembly assembly; 303. Solenoid valve assembly; 304. Intake rocker arm assembly assembly; 3041. Telescopic support shaft; 3042. Guide seat; 3043. Oblique push block; 3044. Height positioning column; 3045. Bottom plate; 3046. Side push plate; 3047. Side push cylinder; 3048. Vertical plate; 3049. Oblique push cylinder; 305. Adjustment bolt tightening assembly; 306. Nut tightening assembly; 4. Equipment hood assembly; 5. Flow shelf assembly; 6. Air tightness detection device; 601. Air detection positioning mandrel; 602. Pressure sensor; 603. Pressure alarm; 604. Positioning mandrel air supply hole; 605. Air supply pipeline; 7. Rocker arm workpiece; 8. Rocker arm lubrication oil channel. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "surface", "side", "gap", "circumferential side" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] Reference Figures 1-9 A semi-automatic assembly platform for a rocker arm assembly includes a workbench component 1, an electrical control box 2 is provided at the workbench component 1, a main mechanism component 3 is installed on the top of the workbench component 1, an equipment cover component 4 is fixedly installed on the top of the workbench component 1, and the equipment cover component 4 is located outside the main mechanism component 3, and a flow shelf component 5 is provided on the front of the workbench component 1;

[0036] The main mechanism assembly 3 is composed of a bottom base plate linear guide assembly 301, an exhaust rocker arm assembly assembly 302, a solenoid valve assembly 303, an intake rocker arm assembly assembly 304, an adjusting bolt tightening assembly 305, and a nut tightening assembly 306. The exhaust rocker arm assembly assembly 302 and the intake rocker arm assembly assembly 304 are designed to be symmetrically distributed.

[0037] Air tightness detection device 6, which is provided with two groups. The two groups of air tightness detection devices 6 are located at the exhaust rocker arm assembly component 302 and the intake rocker arm assembly component 304. The air tightness detection device 6 consists of an air detection positioning core shaft 601, a pressure sensor 602 and a pressure alarm 603;

[0038] The base plate linear guide assembly 301 is located on the top of the workbench assembly 1, and the exhaust rocker arm assembly assembly 302 is located on the top of the base plate linear guide assembly 301; the solenoid valve assembly 303 is located on the back side of the exhaust rocker arm assembly 302, and the intake rocker arm assembly 304 is located on the top of the base plate linear guide assembly 301; the adjusting bolt tightening assembly 305 is located at the exhaust rocker arm assembly 302 and the intake rocker arm assembly 304, and the nut tightening assembly 306 is located on one side of the adjusting bolt tightening assembly 305;

[0039] The intake rocker arm assembly component 304 includes a telescopic support shaft 3041, a guide seat 3042, a tilting block 3043, a height positioning column 3044, a base plate 3045, a side thrust plate 3046, a side thrust cylinder 3047, a vertical plate 3048 and a tilting cylinder 3049. The base plate 3045 is located at the top of the workbench assembly 1. The guide seat 3042, the height positioning column 3044 and the vertical plate 3048 are all located at the top of the base plate 3045. The side thrust cylinder 3047 is installed on the front side of the vertical plate 3048. The telescopic end of the side thrust cylinder 3047 is connected to the side thrust plate 3046. The tilting cylinder 3049 is installed at the bottom. The top of the plate 3045 is provided with an oblique thrust cylinder 3049 on the back side of the vertical plate 3048. The telescopic end of the oblique thrust cylinder 3049 is connected to the oblique thrust block 3043. The top of the oblique thrust block 3043 is in movably contact with the telescopic support shaft 3041. The telescopic support shaft 3041 is located inside the guide seat 3042. The top of the telescopic support shaft 3041 movably passes through the top of the guide seat 3042. The structure of the exhaust rocker arm assembly 302 is the same as that of the intake rocker arm assembly 304. The top of the oblique thrust block 3043 is designed in an inclined surface, and the upper inclined surface of the oblique thrust block 3043 is in movably contact with the bottom end of the telescopic support shaft 3041.

[0040] The airtightness detection device 6 includes an air detection positioning core shaft 601, a pressure sensor 602, and a pressure alarm 603. The air detection positioning core shaft 601 is fixedly mounted on the front side of the vertical plate 3048. A rocker arm workpiece 7 is movably mounted on the air detection positioning core shaft 601. The pressure sensor 602 and the pressure alarm 603 are both fixedly mounted on the back side of the vertical plate 3048 via mounting members. The pressure sensor 602 is electrically connected to the pressure alarm 603 via a wire.

[0041] A rocker arm lubricating oil channel 8 is provided inside the rocker arm workpiece 7, and a positioning core shaft air source hole 604 is provided inside the air inspection positioning core shaft 601, and the positioning core shaft air source hole 604 is connected to the rocker arm lubricating oil channel 8 inside the rocker arm workpiece 7, and the positioning core shaft air source hole 604 is externally connected to an air source pipeline 605, and the air source pipeline 605 externally connected to the positioning core shaft air source hole 604 is connected to the pressure sensor 602.

[0042] During the specific implementation process, the two rocker arm workpieces 7 can be respectively mounted on the two air inspection positioning core shafts 601 during operation, and the rocker arm workpieces 7 can be assisted in being fixed by the cooperation between the side push cylinder 3047, the side push pressure plate 3046, the oblique push cylinder 3049 and the oblique push block 3043. The two rocker arm workpieces 7 can be automatically suspended into the adjustment bolt assembly through the guide rail vertical plate 3048 assembly, the solenoid valve assembly 303, the adjustment bolt tightening assembly 305 and the nut tightening assembly 306. The bolt tightening height can be adjusted by the servo electric batch program to ensure the key item size required by the drawing, adjust the bolt height tolerance, and then the nut can be automatically tightened by the nut tightening assembly 306 to ensure the tightening torque of the nut required by the drawing, thereby preliminarily improving the production and processing quality of the product.

[0043] Among them, during operation, the cooperation between the air detection positioning core shaft 601, the pressure sensor 602 and the pressure alarm 603 can be achieved, that is, the air supply source connected to the positioning core shaft air source hole 604 cooperates with the air supply source pipeline 605 to supply air to the rocker arm lubricating oil channel 8 inside the rocker arm workpiece 7. After the air supply is completed, the pressure sensor 602 is used to detect the pressure change in the air supply source pipeline 605 in real time. If the pressure index changes and the change in the pressure difference value reaches the set value, the electrical signal can be transmitted to the pressure alarm 603, and the pressure alarm 603 implements the alarm measure and shuts down. If the pressure index does not change, it indicates that the oil channel inside the rocker arm is unobstructed, and the rocker arm lubrication function can be guaranteed subsequently, which further effectively improves the production and processing quality of the product.

[0044] During operation, due to the provision of the exhaust rocker arm assembly component 302 and the intake rocker arm assembly component 304, as well as other supporting components, dual-station synchronous processing can be performed, that is, two different rocker arm workpieces 7 are respectively adapted and fixed to the exhaust rocker arm assembly component 302 and the intake rocker arm assembly component 304, and the exhaust rocker arm assembly component 302 and the intake rocker arm assembly component 304, as well as other supporting components, synchronously process the two rocker arm workpieces 7, thereby effectively improving the production and processing efficiency of the product;

[0045] Among them, when working, the working process of the equipment is as follows:

[0046] First, the rocker arm workpiece 7 is assembled and positioned by the air detection positioning core shaft 601. Then, the side push cylinder 3047 is operated to drive the side push plate 3046 to clamp the rocker arm workpiece 7. Then, the air tightness detection device 6 is used to detect the air tightness of the workpiece. Then, the oblique push cylinder 3049 is operated to drive the oblique push block 3043 to clamp the workpiece, and the bottom plate linear guide assembly 301 drives the rocker arm workpiece 7 to move to the rear adjustment bolt tightening assembly 305 station. At this time, the bolt is tightened to a qualified height by the servo electric screwdriver. Then, the bottom plate linear guide assembly 301 drives the rocker arm workpiece 7 to move to the initial nut locking station, and the nut tightening servo electric screwdriver can tighten the nut. Finally, the material is taken to complete the processing.

[0047] The entire assembly table uses photoelectric sensors to give signals to control the movement of the cylinder, and uses Siemens PLC to fully automatically control the servo electric screwdriver and air tightness alarm device, realizing the automation of bolt and nut tightening.

[0048] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A semi-automatic assembly platform for a rocker arm assembly, comprising a workbench component (1), characterized in that: The workbench assembly (1) is provided with an electrical control box (2), a main mechanism assembly (3) is installed on the top of the workbench assembly (1), an equipment cover assembly (4) is fixedly installed on the top of the workbench assembly (1), and the equipment cover assembly (4) is located outside the main mechanism assembly (3), and a flow shelf assembly (5) is provided on the front of the workbench assembly (1); The main mechanism assembly (3) is composed of a base plate linear guide assembly (301), an exhaust rocker arm assembly assembly (302), a solenoid valve assembly (303), an intake rocker arm assembly assembly (304), an adjustment bolt tightening assembly (305) and a nut tightening assembly (306), wherein the exhaust rocker arm assembly assembly (302) and the intake rocker arm assembly assembly (304) are symmetrically distributed. An air tightness detection device (6) is provided with two groups of air tightness detection devices (6), the two groups of air tightness detection devices (6) are located at the exhaust rocker arm assembly component (302) and the intake rocker arm assembly component (304), and the air tightness detection device (6) is composed of an air tightness detection positioning core shaft (601), a pressure sensor (602) and a pressure alarm (603).

2. The semi-automatic assembly platform for rocker arm assemblies according to claim 1, characterized in that: The bottom plate linear guide rail assembly (301) is located on the top of the workbench assembly (1), and the exhaust rocker arm assembly assembly (302) is located on the top of the bottom plate linear guide rail assembly (301).

3. The semi-automatic assembly platform for rocker arm assemblies according to claim 1, characterized in that: The solenoid valve assembly (303) is located on the back side of the exhaust rocker arm assembly (302), and the intake rocker arm assembly (304) is located on the top of the bottom plate linear guide rail assembly (301).

4. The semi-automatic assembly platform for rocker arm assemblies according to claim 1, characterized in that: The adjusting bolt tightening assembly (305) is located at the exhaust rocker arm assembly assembly (302) and the intake rocker arm assembly assembly (304), and the nut tightening assembly (306) is located on one side of the adjusting bolt tightening assembly (305).

5. The semi-automatic assembly platform for rocker arm assemblies according to claim 1, characterized in that: The intake rocker arm assembly component (304) includes a telescopic support shaft (3041), a guide seat (3042), an oblique thrust block (3043), a height positioning column (3044), a base plate (3045), a side thrust plate (3046), a side thrust cylinder (3047), a vertical plate (3048) and an oblique thrust cylinder (3049), wherein the base plate (3045) is located on the top of the workbench component (1), the guide seat (3042), the height positioning column (3044) and the vertical plate (3048) are all located on the top of the base plate (3045), the side thrust cylinder (3047) is installed on the front side of the vertical plate (3048), and the telescopic movement of the side thrust cylinder (3047) is controlled by the side thrust cylinder (3047). The end is connected to a side push plate (3046), the oblique push cylinder (3049) is installed on the top of the base plate (3045), and the oblique push cylinder (3049) is located on the back side of the vertical plate (3048), the telescopic end of the oblique push cylinder (3049) is connected to the oblique push block (3043), the top of the oblique push block (3043) is movably in contact with a telescopic support shaft (3041), and the telescopic support shaft (3041) is located inside the guide seat (3042), and the top end of the telescopic support shaft (3041) movably passes through the top of the guide seat (3042), and the structure of the exhaust rocker arm assembly component (302) is the same as that of the intake rocker arm assembly component (304).

6. The semi-automatic assembly platform for rocker arm assemblies according to claim 5, characterized in that: The top end of the oblique push block (3043) is designed to be inclined, and the upper inclined surface of the oblique push block (3043) is in movable contact with the bottom end of the telescopic support shaft (3041).

7. The semi-automatic assembly platform for rocker arm assemblies according to claim 6, characterized in that: The air tightness detection device (6) comprises an air detection positioning core shaft (601), a pressure sensor (602) and a pressure alarm (603); the air detection positioning core shaft (601) is fixedly mounted on the front side of the vertical plate (3048); a rocker arm workpiece (7) is movably mounted on the air detection positioning core shaft (601); the pressure sensor (602) and the pressure alarm (603) are both fixedly mounted on the back side of the vertical plate (3048) via a mounting member; the pressure sensor (602) is electrically connected to the pressure alarm (603) via a wire.

8. The semi-automatic assembly platform for rocker arm assemblies according to claim 7, characterized in that: A rocker arm lubricating oil passage (8) is provided inside the rocker arm workpiece (7), a positioning core shaft air source hole (604) is provided inside the air detection positioning core shaft (601), and the positioning core shaft air source hole (604) is communicated with the rocker arm lubricating oil passage (8) inside the rocker arm workpiece (7), the positioning core shaft air source hole (604) is externally connected to an air source pipeline (605), and the air source pipeline (605) externally connected to the positioning core shaft air source hole (604) is connected to a pressure sensor (602).

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