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Semi-automatic ball machine and ball car parts machining

Cover 6 is opened and closed, and its chain of movement and action tool holder, in order for the smooth discharge of the chip body, with diagonal chute l9. D to be processed mounted on the five-ball ball mandrel, the mandrel can use the rough the hole centering. The structure on the mandrel, see Soviet Union Patent N ~ -1068235. Pre-processing procedures and process specifications input to the vehicle control system of the ball machine, the control system and electrical cabinet by the desk 5 12 composition. LC1l5 semi-automatic car leaves the ball machine has been Minsk City and Polo Club at the high valve factory in the city of Khabarovsk application of a number of years, the processing material for cast iron and brass ball valve ball, ball diameter = 20, 25,32, d0, 50mm,[link widoczny dla zalogowanych], 3O ~ 75 hourly production rate of parts, machined surface roughness and = 1.25m, ball roundness is 0.02ram. Semi-automatic car with this universal ball machine instead of ordinary machine tools, not only can greatly reduce the production area, to improve labor productivity of 1.5 to 2 times, and can achieve high-precision processing sphere. AP Precision tool holder can be applied to adjust the processing of ellipticity, is the most important advantages of this machine. Through the spindle axis to split proceeds of the ball section of the ellipticity e, and the spindle rotation axis and the turret rotation axis relative position to ask. If the two do not intersect, there are deviations in the ideal crossing point exists,[link widoczny dla zalogowanych], then, e have the following functional relationship between a (D - j x a d plus) ... where D - diameter of the sphere to be machined foot - the ball's path t on this type of origin and should be dumped,[link widoczny dla zalogowanych], please seek publication t valve) l979 on page 53 {of translations - translators to improve the machining precision of the sphere, the ellipse is nearly zero, must be an L- axis and to adjust the relative position of turret. Such as the production plant is constant, the adjusted precision is stable. Conditions such as the workshop in general, the adjusted error ellipse can be measured in microns. Another feature of this machine is used to process surface enhanced precision processing technology, Figure 2 shows the seat surface hardening process the final schematic. 3 tops in the turret of a useful valve rj1993 3 superhard material of the head shaved 5. 2 and adjust the knife lever. I turn the turret axis. Processing can achieve the expected size. Surface enhanced precision machining, the blade 6 with a spherical seat surface contact and move the ball in Figure 2, surface strengthening of parts precision machining diameter deviation of the size of the spherical seat is very important, which affects the minimum allowance of precision machining and the ball and valve seat with the gap. Shown in Figure 3,[link widoczny dla zalogowanych], depending on the size of the gap m sphere diameter and the difference in diameter spherical seat, said seat with r = 4K aperture, b = AB said spherical chord width. , F2, said a spherical radius, the radius of a sphere oA said, the gap may occur in two ways. The left part of Figure 3 expressed in> the right half of trust and expressed R,[link widoczny dla zalogowanych], such as <. formula similar to Figure 3 with the sealing surface of the radius to allow deviation is shown in equation (1) of the show. Because of the existence of the gap and the generally less than The initial margin. DNS0mm the ball is on. the ball and seat sealing surface can be nine precision machining, precision machining allowance for the spherical seat 0.O06mm, although the precise size of the processed spherical seat 90 -8. is inconsistent with the standard accuracy table 9, but can guarantee the ball and seat seal gap is very small. such as requiring the gap m = 2 ~ 31am, the ball and valve seat should be 6 to 7 precision processing. Finally should be noted that the sphere in the high temperature and pressure of the working state is elastic deformation occurs, this deformation will affect the quality of the valve seal. so at room temperature, atmospheric pressure, the ball should not be round, the best time in the processing Using (1) adjusting machine tools, processing into the oval ball. Hebei Institute of Electrical and Wang Fan translated \ More articles related to topics：

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[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]