Pendulum-driven detection device

Abstract

The invention discloses a pendulum-driven detection device, which comprises a checker base for coordinating with the cylinder head installation surface and the cylinder head installation hole for positioning, and a checker base inserted obliquely into the checker base for detecting the inclination of the spark plug installation hole. The standard rod; the inner end of the standard rod is set with a reducing sleeve; the standard rod is provided with a push rod connected to the inner cone of the reducing sleeve to change the diameter of the reducing sleeve, and the push rod is set corresponding to the inner cone of the reducing sleeve. There is a conical head; the outer end of the standard rod is connected with a rotating sleeve for controlling the axial sliding of the push rod along the standard rod; the rotating sleeve and the standard rod are coaxially arranged and connected with a single degree of freedom around the axis; the rotating sleeve and The push rods are connected by threads, and the swing rod-driven detection device of the present invention can be used to detect whether the size and inclination angle of the spark plug installation hole of the cylinder head meet the processing standards, which can ensure product quality, improve detection efficiency, and reduce potential safety hazards.

Description

technical field [0001] The invention relates to a detection tool, in particular to a pendulum-driven detection device. Background technique [0002] The cylinder head belongs to the valve structure in the structure of the internal combustion engine. It is used to close the upper part of the cylinder, form a combustion chamber with the cylinder and the piston, and suck air into the cylinder during the intake stroke of the internal combustion engine to form a combustible mixture and will burn during the exhaust stroke. The exhaust gas in the chamber is discharged. For gasoline engines, the cylinder head is also provided with a spark plug installation hole for fixed installation of the spark plug. The center line of the spark plug installation hole and the installation surface of the cylinder head are set at a certain inclination angle. During the quality inspection, it is necessary to check the spark plug installation hole. Size and inclination angle. In the prior art, the inc...

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Problems solved by technology

[0002] The cylinder head belongs to the gas distribution structure in the structure of the internal combustion engine. It is used to close the upper part of the cylinder, and forms a combustion chamber with the cylinder and the piston. The exhaust gas in the chamber is discharged. For gasoline engines, the cylinder head is also provided with a spark plug installation hole for fixed installation of the spark plug. The size and inclination angle, in the prior art, the inclination is usually detected by inserting the plug pin through the spark plug installation hole from the bottom side of the cylinder head and inserting it into the inspection body, that is, if the plug pin can be inserted smoothly into the inspection body, it means that the workpiece size is qualified. When touching the workpiece, it takes a certain amount of time to align the pin and the spark plug installation hole, the detection efficiency is low, and the pin and the inspection body are separated from each other during the test, and the integrity is poor. Once the pin falls, it is easy to cause a safety accident; It is difficult for the pin to ensure the stability of the direction of the pressing force on the pin, which is not conducive to the smooth sliding of the pin; and the size of the spark plug mounting hole has an allowable error range. Only one pin can not detect the specific processing size of the spark plug mounting hole and whether the processing size is within Within the allowable range, the product quality cannot be precisely controlled

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