Understand the process and precautions of starting the grinding wheel of the cylindrical grinder every time

2025-04-11

Understand the process and precautions for starting the grinding wheel of the cylindrical grinder each time.1. Before starting the grinding wheel each time, the hydraulic on-off valve should be placed in the stop position, the adjustment handle should be placed in the low-speed position, and the grinding wheel seat feed handle should be placed in the reverse position to avoid accidents.2. Before starting the grinding wheel, the lubrication pump of the external cylindrical grinder or the oil pump of the static pressure oil supply system should be started first, and the grinding wheel can only be started after the lubrication of the grinding wheel spindle is normal.3. At the beginning of grinding, the feed rate should be small and the cutting speed should be slow to prevent the grinding wheel from breaking due to cold brittleness, especially in winter when the temperature is low.4. Before starting grinding, t...

Is the clear specification for discussing the drilling volume of CNC cylindrical grinders clear

2025-04-11

Is the clear specification for discussing the drilling volume of CNC cylindrical grinders clear?Reasonably clarifying the drilling volume of CNC cylindrical grinders is of great practical significance for increasing labor productivity and ensuring production and manufacturing quality. Generally speaking, drilling is a precision machining production process. Compared with other milling methods, its milling efficiency is much higher and lower. Excessive surplus will reduce cost and efficiency, and increase the power installation project consumption of sand wheels and machining centers.In some cases, the quality of the parts may continue to decrease again, such as for cast iron parts that have undergone surface high-frequency quenching and high-frequency heat treatment. Their surface compressive strength is high, but the compressive strength decreases as they move inward. If the volume is large before polishin...

Discuss the loading, unloading, and processing efficiency of internal grinding machines

2025-04-11

Discuss the loading, unloading, and processing efficiency of internal grinding machines.Internal grinding machine is a common machining equipment that can not only grind the surface of the workpiece during use, but also perform groove and surface machining on the workpiece during operation. In the existing technology, the internal grinding machine has not achieved full automation in loading and unloading before and after machining.During the machining process of an internal cylindrical grinder, both loading and unloading are manually completed by the operator, which not only increases the workload of the operator, but also leads to a decrease in production efficiency and directly affects the positioning and processing quality of the workpiece.Therefore, it is necessary for its internal grinding machine to be able to automatically load and unload materials, and the equipment should be able to automatically l...

What is the difference between CNC centerless grinding machine and ordinary centerless grinding machine

2025-04-11

What is the difference between CNC centerless grinder and ordinary centerless grinder? I believe this is also a question for many grinder buyers. So let's briefly explain it.1. Simply put, the grinder is automatically controlled by a program (requiring programming).2. When debugging, input the data of the processed workpiece. Once the workpiece is successfully debugged, it can be automatically mass-produced by computer control.3. The characteristics are accuracy, fast speed, and suitable for mass production.4. The requirements for operators are not high, they can start working with a little training.5. The ball screw is driven by a servo motor instead of an oil cylinder.6. High stability, operators rarely need to directly contact the machine tool. ...

What is the formation mechanism of blockage and passivation of grinding wheels

2025-04-11

What is the formation mechanism of blockage and passivation of grinding wheels? Embedded blockage is mainly caused by the mechanical infiltration of grinding debris into the gaps of the grinding wheel, where there is no chemical adhesion between the debris and the abrasive particles. The formation process of adhesive blockage is the chemical bonding between abrasives and grinding particles, and then the abrasives fuse with each other under mechanical adhesion and pressure when grinding carbon steel. When the abrasives rub or grind on the metal surface, the wear of the abrasives begins, that is, the sharp edges of the abrasives begin to be ground away, forming a flat surface on the abrasives. The plane becomes larger and larger, so that the frictional force acting on the abrasive grains is large enough to cause the sand particles on the surface of the grinding wheel to fall off or break, thereby exposing new...

Exploring how to adjust the external cylindrical grinder on the grinding wheel

2025-04-11

How to adjust the external cylindrical grinder on the grinding wheel?1. Take minor adjustments. The amount of adjustment is based on the criterion of restoring the geometric shape of the grinding wheel and producing a good grinding edge after several adjustments. When using a single point dressing tool, the diameter direction of the grinding wheel should be in contact with the axis at an inclination angle of 10-150 degrees. This will cause the single point trimming tool to produce a sharpening effect during regular rotation. The trimming tool with multi-point contact does not need to be tilted at this angle. Change to using the entire end face of the dressing tool in contact with the surface of the grinding wheel. 2. Keep cool.Proper use of coolant can accelerate repair speed and improve repair efficiency. When the diamond dressing tool passes through the grinding wheel, install a coolant nozzle to cover th...

Do you know the principles for confirming the grinding allowance of CNC cylindrical grinders

2025-04-11

Do you know the principles for confirming the grinding allowance of CNC cylindrical grinders?Reasonably confirming the grinding allowance of CNC cylindrical grinders is of great significance for increasing labor productivity and ensuring machining quality. Generally speaking, grinding is a precision machining process, and compared with other cutting methods, its cutting efficiency is much lower. If the margin is too large, it will reduce productivity and increase the power consumption of the grinding wheel and machine tool.In some cases, it can also reduce the quality of the parts, such as workpieces that have undergone surface nitriding and high-frequency heat treatment. The surface layer hardness is high, and the hardness decreases as it goes inward. If the margin before precision grinding is too large, the hardness of the surface layer after grinding will not meet the requirements. Of course, the margin ...

Structural layout and rotational accuracy of CNC cylindrical grinder

2025-04-11

The CNC cylindrical grinder is mainly composed of grinding wheel frame, headstock, bed body, worktable, tailstock and other components during the production process. The bed body adopts large circular holes and shark fin shaped ribs. After long-term use, the machine tool has good dynamic and static stiffness.The worktable of the CNC cylindrical grinder is divided into upper and lower tables, which can grind conical surfaces. The bed and worktable of the equipment use plastic coated guide rails, which have a low friction coefficient. The worktable is directly driven by a servo motor to move the ball screw smoothly.The linear speed of its grinding wheel is less than 35m/s, and its overall grinding efficiency is relatively high during use. Its grinding head bearing is a large angle three tile dynamic pressure bearing with high rotational accuracy.When the CNC cylindrical grinder is used in the radial vector an...

What should be done when a CNC grinder malfunctions

2025-04-11

What should be done when a CNC grinder malfunctions?1、 Investigation of the fault site.When a fault occurs, it is necessary to understand under what circumstances the machine tool fault occurred, what phenomena occurred, and what measures the operator took after the fault occurred. If the fault site is still present, it is necessary to carefully observe and understand the content of the program segment being executed and the alarm content displayed by the self diagnosis in the CNC, and observe the alarm lights on each circuit board. Then press the reset button of the system to see if the fault disappears. If the fault alarm disappears, it is mostly a software fault.2、 List all possible factors that may cause the malfunction.The causes of the same malfunction in CNC machine tools may be diverse, including mechanical, electrical, control system, and many other factors. Therefore, when analyzing ...

Detailed operating procedures for CNC grinding machines

2025-04-11

The operating procedures for CNC grinding machines can be divided into three parts: before work, during work, and after work.1、 Before work:1. The operator should wear work clothes and take protective measures.2. Check the device, power supply, etc. to ensure that the oil level, quality, and compressed air pressure in the fuel tank are normal or within the specified range.3. Are there any tools protecting the moving parts inside the machine tool protective cover? If so, they should be cleaned and placed in the corresponding position. The machine tool protective cover should be closed before operation.4. After two weeks of machine shutdown, the machine should be powered on to prevent data loss.5. Before the machine tool officially starts working, it should be run at low speed for 15 to 20 minutes to check if the lubrication is normal and if there is thermal balance.2、 At work:1. The operator mu...