Valve lock piece assembling device

Abstract

The invention relates to a valve lock piece assembling device which is suitable for the industrial production, comprising a pressing body which is fixedly connected with an up-down moving mechanism. The low end of the pressing body is provided with an elastic clamping and connecting mechanism; a clamping opening part is used for clamping a preassembling component which consists of a valve lock piece and a valve spring; the lower end of the pressing body is also provided with a concave cavity for allowing the valve lock piece to separate in the radial direction; a hollow cavity in the pressing body is provided with a stepped shaft, and the lower end of the stepped shaft extends to the concave cavity which is arranged on the lower end of the pressing body and used for holding the preassembling component; the pressing body is provided with an airflow channel which is communicated with the side wall of the concave cavity for holding the preassembling component; the preassembling component is assembled on the valve lock piece assembling device by a feeding assisting tool; and the valve lock piece assembling device moves down to automatically assemble the valve lock piece by pressing. The valve lock piece assembling device ensures the safe and reliable assembling process and the high yield of the finished product and meets the industrial production demand.

Description

technical field [0001] The invention relates to the assembly of the engine valve lock plate, specifically a special device for assembling the engine valve lock plate and the spring seat. Background technique [0002] There are two common types of engine valve lock plates: conical lock plate type and lock pin type. The conical locking plate fixation adopts a split structure, and the two halves of the locking plate are assembled together to form a complete outer conical structure. There are one to three ring-shaped protrusions in the inner hole. When assembling, use professional tools to connect the upper seat of the valve spring to the valve spring. Next, put the two locking pieces on the tail of the valve stem and combine them together, and the ring-shaped protrusion is just stuck in the ring groove at the tail of the valve stem. Loosen the upper seat of the spring, because the conical outer surface of the locking plate is just in time to be positioned at the tapered hole o...

AI Technical Summary

Problems solved by technology

[0004] 1. Assembled with imported equipment, the equipment has a vacuum adsorption device to absorb the lock plate, the pressure head presses down the upper seat of the valve spring and the valve spring, and pushes the lock plate into the groove at an appropriate position; the equipment system is complicated, the cost is high, and the maintenance is difficult

[0005] 2. Use a simple indenter, which is fixed on a base with a 2-dimensional guide rail. Before pressing, the tray must be rotated to the pressing angle, manually depress the valve spring, and manually install the locking piece; or semi-automatically press. , the pressure head is driven by the cylinder, automatically depresses the valve spring, and manually installs the lock plate; the rhythm is slow, the efficiency is low and the labor intensity is high

[0006] 3. Domestic automatic or semi-automatic assembly equipment, the current press-fitting method has a low pass rate and is limited by the assembly space

Before the assembly, the valve spring cover 10 and the valve lock plate 10 are first placed on the valve spring 12, and then the above-mentioned pressure head is pressed down. Therefore, the auxiliary operation of the assembly process is completed on the pressure loading equipment. This increases the safety hazards of personnel, and at the same time, the reliability of the separation and closing action of the valve lock plate 11 implemented by the device is low, thus affecting the assembly quality and efficiency

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