Cylinder head simple inner chamber cleaning machine

The cylinder head is one of the complicated components on the internal combustion engine. The internal cooling water chamber is the passage for the cylinder head to circulate the cooling water, and the structure is complicated. In the casting process of the cylinder head, the inner cavity is in the form of a sand core, which is easy to stick sand. The chips formed during the cutting process of the cylinder head easily enter the water chamber through the sand outlet hole. If the cleaning is not clean, the sand or the chip adheres to the water channel. On the wall, the waterway is not smooth, which will reduce the thermal conductivity of the cylinder head, causing local overheating and affecting the performance of the engine.

Traditional cleaning mode

In the production process of the cylinder head, the inner cavity cleaning process is arranged to remove chips, oil and sand after the completion of the cutting process and before the water block assembly. In the past, the cylinder head was cleaned by means of vibrating chips, compressed air blowing and by means of spray cleaning. Due to the complicated structure of the inner cavity and the spray on the conveyor chain, the workpiece remains in a fixed posture, and the chips in the inner cavity are often not cleaned. Wherever, the chips are stored and the expected cleanliness requirements are not met.

With the improvement of the production technology and technology level of the cylinder head, the user has put forward higher requirements on the cleanliness of the cylinder head. Some specialized cylinder head production lines, custom-made special cleaning machine equipment, adopt fixed-point and positioning high-pressure cleaning machines. The utility model has the advantages of high cost and large investment, and is suitable for the production of cylinder heads of large quantities of single products, and is not suitable for the production process of cylinder heads of various varieties and small batches.

Innovative design ideas

According to the user requirements of the cylinder head product, combined with the company's production status, in order to solve the problem of cleaning the inner cavity of the cylinder head of many varieties and small batches, our company makes a simple and practical cylinder head cavity cleaning machine. A device is used to immerse the cylinder head in a water tank in which the cleaning agent is placed, and the water enters the inner cavity through the respective sand holes and water channels, and the cylinder head is circulated and rotated. During the rotation of the cylinder head, a water flow is formed, and the flow of water in the inner cavity is utilized, so that the dirt, sand and the like of the inner cavity are separated from the surface of the cylinder head, and the cleaning liquid is flushed out of the inner cavity together.

Internal cleaning machine structure and working principle

The inner chamber cleaning machine consists of two parts: the water tank and the transmission mechanism.

1) The water tank is equipped with cleaning liquid, which is divided into front and rear parts. The front part is used for cleaning. The cylinder head is placed in it for 360° rotation, water flows in the inner cavity of the cylinder head, and the electric heating tube is used for heating at the back. Partially connected by a window located 400 mm high in the middle of the tank and separated by a filter.

2) The transmission mechanism consists of a pair of gear pairs and two drive shafts. The drive shaft I shaft is supported by two bearings mounted in the bearing housing, and the shaft end is equipped with a hand wheel. Turning the handwheel, the I-axis rotates, the gear z1 mounted on the I-axis rotates, and the rotary motion is transmitted to the II-axis through the gear pairs z1 and z2. The II-axis is supported by two ball bearings, and the I-shaped frame is mounted thereon. Try not to cover the hole of the cylinder head, fasten the cylinder head to the frame, and place a cylinder head on the upper and lower sides of the I-shaped frame to maintain balance. The water level in the water tank makes the lower one of the cylinder heads immersed in the water, and the upper one of the cylinder heads is exposed to the water surface, so that while the II shaft rotates, the two cylinder heads rotate 360° in the water tank, and the water flows in the inner chamber. The dirt, such as chips and sand, are taken away to clean the inner cavity.

The surface is cleaned with compressed air to remove the workpiece.

Conclusion

The inner cavity cleaning machine has the advantages of simple structure and convenient manufacture, and the hand wheel which is deposited in the narrow cavity of the cylinder head can be effectively removed by shaking the hand wheel in the forward and reverse directions, and the cleaning effect is good, and the user can satisfy the inside of the cylinder head. Cavity cleanliness requirements. It can clean the products of different varieties, greatly reduce the investment of equipment for cleaning process and reduce the production cost.