Analysis of the reasons for abnormal grinding wheel speed of CNC external grinding machine

2025-04-08

The application of CNC cylindrical grinding machine is very extensive, it can be used in industries such as automobiles, motorcycles, air compressors, bearings, military, aviation, aerospace, etc., mainly for batch processing of parts. Its main characteristics are good universality, high modularity, high precision and rigidity, and high work efficiency. The CNC cylindrical grinder is mainly composed of a bed, worktable, grinding wheel holder, headstock, and tailstock. Bed frame: It adopts large circular hole rib plate, so the grinder has good rigidity and can be used for a long time. Workbench: It is divided into upper and lower tabletops, which are directly driven by servo motors to move ball screws, ensuring smooth and reliable movement. Grinding wheel holder: Its linear velocity is generally less than 35m/s, and the grinding efficiency is relatively high. Its motion is directly driven by servo...

Talk about the pre-treatment work before the machining of the external cylindrical grinder

2025-04-08

CNC internal grinding machine is also one of the high-precision grinding machine products. Precise grinding machine products must ensure the stability of the equipment during use, and there should be no shaking during the use of the equipment to avoid affecting the operational accuracy of the equipment. When CNC grinding machines are used for precision grinding, the machine tool cannot be offset or vibrated, even small vibrations may affect the production efficiency of the equipment.There are many reasons for equipment vibration, which may be due to the quality of the machine tool itself or external environment. In short, we need to be able to promptly identify the cause of the problem and solve it as soon as possible. After discovering the problem of shaking in the machine tool, the first thing we need to do is to identify the root of the problem. It may be due to the grinding machine spindle being used fo...

Analysis of common malfunctions in CNC cylindrical grinding machines

2025-04-08

Grinding machine tools are commonly used products in industry, with a wide variety of types that can process various types of products. Grinding machine companies have started producing more energy-efficient and environmentally friendly products to meet the needs of the times. So how can we produce energy-saving and environmentally friendly products, and what changes should we make in those areas? 1. Applying frequency conversion speed regulation technology to grinding machines Grinding machine companies can reduce resource waste and achieve energy conservation and environmental protection by improving processing quality and efficiency. The grinder is powered by electricity for operation. The power technology we used in the past operated according to the traditional starting circuit, and the motor started and ran at the rated speed. Although this circuit operation mode is safe, due to certain fluctua...

The impact of adjusting grinding stone bearings on the machining quality of cylindrical grinders

2025-04-08

The specific steps for the trial operation of the cylindrical grinder are as follows:(1) Check whether the various components of the machine tool are securely installed, especially the grinding head and clamping device.(2) Check if the grinding wheel is installed correctly and if the speed of the grinding head matches the specifications of the grinding wheel.(3) Adjust the position of the grinding head to ensure that it is at an appropriate distance from the workpiece.(4) Select appropriate grinding parameters based on the size of the workpiece and grinding requirements, such as rotational speed, feed rate, etc.(5) Start the cylindrical grinder and conduct a no-load test run to check if the machine is running normally and if the grinding head and clamping device are working properly.(6) Load the workpiece, adjust the clamping device to ensure that the workpiece is firmly clamped, and then start grinding.(7)...

Talk about the cooling and lubrication methods of CNC end face cylindrical grinding machines

2025-04-08

A CNC cylindrical grinder is composed of components such as a bed, worktable, grinding wheel holder, headstock, and tailstock. Below is a brief introduction to the installation of grinding wheels in the grinding wheel holder. Grinding wheels are generally installed with flanges. The flange base, flange cover, gasket, hexagon socket screw, and other components of the flange are included.Installation requirements for grinding wheel blades of CNC cylindrical grinder:(1) The installation base of the grinding wheel should have no obvious defects.(2) The axis of the grinding wheel should not be significantly skewed or eccentric relative to the axis of the flange.(3) When installing the grinding wheel, thick paper should generally be used as a backing to ensure that the pressure of the grinding wheel during installation and compression can be evenly distributed across the entire end face of the grinding wheel.Prec...

How to balance the machining quality of an external cylindrical grinder?

2025-04-08

The crawling of CNC end face cylindrical grinding machines is often caused by poor lubrication of the worktable running guide rails. The lubrication is too small, or simply due to blockage of the lubrication channel, the lubricating oil cannot reach the guide rail at all, which increases the friction between the guide rail pairs and causes crawling phenomenon. At this point, as long as the lubrication channel is opened or the lubrication amount is appropriately increased, the problem of workbench crawling can be solved. It should be noted that the lubrication amount between the guide rail pairs cannot be adjusted too much, otherwise it will cause drift during the operation of the worktable, which will lead to related quality problems of the ground workpiece.Hydraulic system adjustment of CNC end face cylindrical grinder:1. Adjust the hydraulic system according to the instructions in the machine tool manual....

What are the methods to adjust the feed rate of an external cylindrical grinder?

2025-04-08

The cylindrical grinder is mainly composed of a bed body, a headstock device set on the bed body, and a grinding device. The headstock device is used for installing and clamping workpieces and driving them to rotate. The grinding device is equipped with a grinding wheel, which is used for grinding the workpiece.1. Adjustment of hydraulic transmission part of workbench:Press the start button of the hydraulic pump, then place the hydraulic on/off knob of the worktable in the "on" position, and then skip the position of the reciprocating stop iron of the worktable, so that the worktable can enter the working stroke and the stroke valve is pressed down by the stroke pressure plate; Adjust the grinding speed knob of the worktable to make the worktable move back and forth; After the movement of the cylindrical grinder worktable is completed, lift the phase change handle by hand to pass over the right shift iron; ...

Safety operating procedures for grinding machines

2025-04-08

The CNC end face cylindrical grinder is suitable for grinding cylindrical and conical outer circles, especially for grinding cylindrical stepped shaft parts such as gear shafts, camshafts, crankshafts, etc. in gearboxes. By selecting the appropriate grinding wheel and corresponding grinding process, the machining accuracy and roughness of the machine tool can stably meet the accuracy standards of the relevant machine tool. The job responsibilities before starting up are as follows:1. The actual operation personnel must pass the examination and obtain a work permit before proceeding with the actual operation. The operators should understand the characteristics, structure, etc. of the remote server and follow the handover system.2. The operator should follow the instructions for use, memorize the smooth positions, lubrication methods, and types and models of lubricating grease, and lubricate and maintain the ...

Reasons for causing surface ripples on machined parts of cylindrical grinders

2025-04-08

1. The use and adjustment of headgearThe head frame of a CNC cylindrical grinder consists of a head frame box and a head frame base plate. The head frame box can rotate around the axis on the head frame base plate, and the angle of rotation can be read from the scale plate. The head rack dial can achieve segmented stepless speed regulation through a pulley and a frequency converter. The pre tension force of the triangular tape on one end of the headstock motor is adjusted by moving the headstock motor. The pre tightening force of the multi wedge belt on the headband dial is adjusted by rotating the eccentric sleeve. When rotating the eccentric sleeve, first loosen the set screw. After the eccentric sleeve is turned to the appropriate position, tighten the set screw.The gap between the headstock spindle and the bearing is adjusted by rotating the scale sleeve, which rotates clockwise to increase the gap; On ...

What is suitable for CNC internal grinding machine

2025-04-08

1. Check if the ground is level. If the level of the foundation bolts of the cylindrical grinder is not adjusted correctly, it will cause resonance of the equipment. Due to the poor flatness of the ground in production and processing sites, it is necessary to adjust the leveling screws to achieve a relative height for the equipment. First, check if every screw on the foot is securely fastened to the floor cushion. Use a level to check if the front, back, left, right, and up and down are aligned, and tighten the screws.2. After performing the above operation, if the vibration of the cylindrical grinder is not eliminated, the ground should be checked. If the ground is terrazzo or paved, it is relatively firm. If the cement floor is flat, the ground will be relatively empty, which will cause resonance. In this situation, you can buy a few gray black rubber pads from a plastic hardware store, with a thickness o...