Operation and maintenance of the hydraulic system of the pulling machine

Broaching machine is mainly used for processing flange fork and flange end tooth shape. The machine tool uses a special fixture to fix the workpiece, a self-locking mechanism is used inside the fixture, and a flexible clamping device with a spring expansion sleeve to effectively ensure the positioning accuracy of the workpiece. The fixture uses the rack and pinion and the positioning key for automatic indexing and secondary broaching, and the first processing is completed, which has the advantages of high precision and high efficiency. Special fixture can be replaced by sub-fixture body to achieve the same type of parts for variety processing.

Due to the widespread application of machine tools in the production and processing process, the maintenance requirements for the hydraulic system of the broaching machine are higher. If the use and maintenance are improper, the reliability and service life of the broaching machine will be seriously affected. At present, the main problems in the hydraulic system of broaching machine are: vibration when the sliding plate is working; noise exceeds 85dB; maintenance difficulties and high maintenance costs; high energy consumption and high oil temperature.

The main reason for these problems is that the selected standard hydraulic components are obsolete products and the relevant hydraulic components are not designed correctly.

The hydraulic technology of the broaching machine is driven by the oil pump, which has obvious advantages in technology, the processing technology is more precise, the hardness is also significantly improved, and the wear resistance of the product is better. The hydraulic broaching machine can process parts of various shapes, such as square holes, splines, various angles and so on. Hydraulic is the transmission mode of hydraulic broaching machine, and the direction of transmission can be changed, not a single, so it has good flexibility. Hydraulic broaching machine can achieve a variety of operating methods, so that the machine and hydraulic integration, in the use of function has been doubled. The hydraulic broaching machine cooling system has a good structure, as long as the operation is correct, there will be no problems. If there is a chip problem, it is generally due to improper operation. To avoid improper operation, we must first use the correct chip cutting method. When we put the cutting fluid into the container, we must pay attention not to fill it all, leaving space for the chips to be fully stored. Otherwise, too much chip will cause the space of the turning fluid to be occupied, and eventually lead to the rise of the liquid level. Clean up the excess chips and maintain the cleanliness of the hydraulic broaching machine.

In addition, specific broaching operations should be carried out according to the rated pulling force. Because in the production process, broaching can obtain higher dimensional accuracy and smaller surface roughness, and improve production efficiency. Protect the broach, because the sharp broach can be processed for broaching machines of different shapes, especially the carbide indexable broach has higher broaching efficiency and should be specially maintained.

l51 series puller real shot:

l57 series of pulper real shot figure: