Accuracy of radius grooves made on vertical milling machines by swivelling the milling head

1973 ◽  
Vol 9 (3) ◽  
pp. 251-252
Author(s):  
V. P. Marfitsyn ◽  
A. Z. Volynchik
Keyword(s):  
Vertical Milling ◽  
Milling Machines

Feed Rate Influence on Motion Error Characteristics of CNC Vertical Milling Machine

2013 ◽  
Vol 393 ◽  
pp. 36-41
Author(s):  
Azman Ahmad Bakir ◽  
Zainal Abidin Ahmad ◽  
Mazlan Mohamed ◽  
Mohd Nor Hakim Hassan ◽  
Muhamad Iqbal bin Ahmad
Keyword(s):  
Feed Rate ◽  
Numerical Control ◽  
Motion Error ◽  
Measuring Device ◽  
Cnc Machines ◽  
Standard Data ◽  
Machine Performance ◽  
Vertical Milling ◽  
Milling Machines ◽  
Vertical Milling Machine

The increasing number of the Computer Numerical Control (CNC) machines usage in the manufacturing field appears to suggest that they are expected to be in good running condition. Machine tools such as CNC vertical milling machines are meant to produce precise work parts. Motion errors are factors which can directly affect the accuracy of the machine. This study presents an opportunity for interested parties to understand the characteristics of motion errors that exist in the CNC vertical milling machines with different feed rate settings. The purpose of this project is to find out any abnormalities apparent to the machine performance as the feed rate setting is increased. The motion errors of the CNC machines were examined by using a measuring device, namely Double Ball Bar (DBB). This equipment is designed to examine machine performance by measuring the accuracy of its movements. This device, which has two balls of identical size at the end of the bar, was mounted on a spindle and onto a special holder which is mounted on the working table. The machine is programmed to move in a circular motion, clockwise and anti-clockwise in three planes, XY, YZ and ZX. Any deviation from the standard data will represent the imperfection of the machines condition, especially mechanical components such as the slide bearing, spindle bearing or servo motor responses. By knowing the most significant error origin, the corrective countermeasures can then be carried out.

DEVICE FOR HONING PLANES WEDGES VALVES ARTILLERY SYSTEMS

2020 ◽  
pp. 37-42
Author(s):  
V. A. Bahvalov
Keyword(s):  
Metal Removal ◽  
High Strength ◽  
Gear Ratio ◽  
Work Piece ◽  
Milling Machine ◽  
Machined Surface ◽  
Vertical Milling ◽  
Milling Machines ◽  
Vertical Milling Machine ◽  
Kinematic Diagram

The article describes the process of honing the details of command artillery systems, in particular the process of honing planes wedge gate of medium-caliber guns. The article is an analysis of the kinematic scheme of the device and the selected gear ratio device that provides even wear a uniform honing stones and metal removal with a flat machined surface of the work piece due to the commission of the cutting grains honing stones complex movements in the horizontal plane. Next each of the cutting grains will not be repeated for the entire processing cycle. Kinematic diagram of the device with the established and enshrined in the radial grooves of the disc honing stones is implemented in the design and manufacture of devices for honing on vertical milling machines planes wedge gate artillery systems. Investigation of the process of honing the flat specimens made of high-strength gun steels viscous with plan dimensions 130x240 mm possible to determine the rational parameters of flat honing process.Production testing device for honing planes wedge gate of one of the artillery pieces on a vertical milling machine performed at one of the engineering confirmed the efficiency of the device for a flat honing. Honing wedge planes shutter serial products (76 mm caliber gun) on a vertical milling machine using the apparatus discussed in the article improves the processing performance in comparison with conventional processing means 20…35 %. In this case, stability is regulated product design documentation form accuracy and size of the part and the surface roughness of the planes of the wedge gate Ra £ 0,32 microns.

The Usage of Error Compensation Tools of CNC for Vertical Milling Machines

2018 ◽  
Vol 38 (2) ◽  
pp. 119-122 ◽  
Author(s):  
G. M. Martinov ◽  
A. I. Obukhov ◽  
N. V. Kozak
Keyword(s):  
Error Compensation ◽  
Vertical Milling ◽  
Milling Machines

Basic Study on the Development of the General Purpose Vertical Milling Machine for Educational Skill Training

2009 ◽  
Vol 407-408 ◽  
pp. 155-158
Author(s):  
Takekazu Sawa ◽  
Masayuki Okabe ◽  
Akio Siga ◽  
Masami Mutoh ◽  
Takayuki Kurihara ◽  
...  
Keyword(s):  
Skill Training ◽  
General Purpose ◽  
Wave Profile ◽  
Inspection System ◽  
Milling Machine ◽  
Basic Study ◽  
Cutting Power ◽  
Vertical Milling ◽  
Milling Machines ◽  
Vertical Milling Machine

In this study, covering for the skill training centers in Japan, we performed surveillance study about the functions required for the general purpose milling machines for educational skill training. As a result, it was found that the function of recognizing machining state is desired for milling machines besides higher stiffness, higher accuracy, and the ease of chip treatment. Based on this fact, the general purpose vertical milling machine was developed for educational skill training. First, a beginner's work analysis was conducted and the functions which control the mishandling were developed. The operation mistake has decreased by this function. In addition, the cutting power inspection system was built by using high sensitive micro-wattmeter. And, the possibility of judgment of tool wear was found by inspecting the change of the wave profile in the wattmeter.

Swivel angle for milling radius grooves on vertical milling machines

1972 ◽  
Vol 8 (1) ◽  
pp. 47-48
Author(s):  
V. P. Marfitsin ◽  
A. Z. Volynchik
Keyword(s):  
Vertical Milling ◽  
Milling Machines ◽  
Swivel Angle
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