Faced with the problem of high precision and low production efficiency of air conditioning compressor cylinder, our company has developed a special double disc grinding machine for SX100-5 W compressor cylinder at the request of China Gree Electric Appliances. This special double disc grinding machine for CNC cylinder integrates the advantages of vertical shaft double disc grinding machine and horizontal shaft double disc grinding machine. It is designed and manufactured to meet the special requirements of compressor cylinder processing technology. It can meet the requirements of the cylinder processing process program, clamp once, grind to the size requirements once, and meet the production process requirements of the compressor cylinder, such as verticality, flatness, thickness difference, etc.

The machine tool adopts the principle of reciprocating plunge grinding, which is characterized by strong rigidity, good stability, high precision, low power, low energy consumption and easy operation. Double disc grinding machine made in China with independent intellectual property rights.

Main structure of the machine tool:

Mainly comprises a main bed body and a front bed body; Left and right grinding heads; Left and right carriage; Left and right feed compensation mechanisms; Grinding wheel dressing mechanism; Reciprocating feeding mechanism; Special fixture; Three-axis CNC system; Automatic lubrication system; Hydraulic and pneumatic systems, etc. Mechanical, CNC system, PLC, electrical control, alarm and fault diagnosis systems work together.

The left and right grinding wheels are driven to feed and compensate by a servo motor, and the feeding and compensation are realized by driving a ball screw through a primary low backlash reducer; The reciprocating feeding is realized by the drive of a servo motor; The grinding wheel dressing is realized by a hydraulic drive dressing mechanism; The movement of the grinding head is supported by the linear needle guide rail.

Main features of the machine tool:

No matter how much the thickness stock of the end face of the cylinder is, it can be fed once and finished once, so as to realize the double-sided grinding of parts once.

The bed is designed with heat insulation to ensure that the machine tool can work continuously for a long time without affecting the accuracy.

High-precision ball screw is used for grinding wheel feed, and V-shaped steel needle roller guide rail is used.

The grinding head moves as a whole to complete grinding, with strong rigidity and outstanding stability. Instead of spindle expansion grinding, it maximizes its rigidity, and the spindle is pre-tightened by constant force load, with large cutting depth and high precision.

The dresser has an integral structure, one dressing arm and two grinding wheels are dressed at the same time, the stability is good, the dressing precision is high, and automatic dressing and automatic compensation are realized.

The system has the function of historical data record and query. You can query the processing quantity and cumulative processing quantity of the current shift, and make statistics on the cumulative operation records of the machine tool.

The grinding wheel trimming frequency can be preset, and when the machining quantity of the machine tool reaches the set value, the grinding wheel automatically retreats for trimming to realize automatic trimming and automatic compensation; Automatically return to the grinding position after finishing. It can also be trimmed manually.

When the grinding wheel is worn to the limit size, the feeding mechanism will automatically stop feeding and give an audible and visual alarm.

The grinding wheel protective cover can be automatically lifted and lowered, and the grinding wheel protective cover lifting and grinding head rotation interlocking safety setting and the correction and grinding interlocking safety setting are additionally arranged, so that the safety factor is high.

The main shaft of the core component is made of 40Cr material and is subjected to forging, annealing, normalizing, quenching and tempering, quenching and qualitative treatment. The machine has compact layout, scientific and reasonable design, sufficient rigidity and long service life.

It is equipped with an independent coolant circulation system and has the function of coolant thermostatic control. The coolant system is equipped with two-stage filtration: the first stage is a magnetic drum separator, and the second stage is a paper belt filter with a filtration accuracy of less than 20 μm and a water level alarm.