Three, summary of the invention
The object of the invention is to overcome above-mentioned deficiency, and a kind of same board of car mill processing integrated mechanism can realize the ball valve body car grinding machine of grinding, turning processing on to(for) the valve body surface of symmetrical ball valve is provided.
Purpose of the present invention realizes by following technical solution: a kind of car mill processing integrated mechanism of ball valve body car grinding machine, comprise lathe bed base, ball-clamped device, heading device, mill rotating control assembly, on described lathe bed base and at the opposite face place of mill rotating control assembly and the side edge of ball-clamped device, the turning processing unit (plant) is housed; Described turning processing unit (plant) vertically moves Control Component by car ball saddle, car ball slide plate, headstock assembly, slide plate and the horizontal mobile Control Component of saddle constitutes.
After adopting structure of the present invention, carry out the clamping processing, carry out top tail processing by the head of ball-clamped device by the afterbody of device of heading a ball to workpiece to workpiece, and by the mill rotating control assembly work piece surface is carried out grinding and handle, and (at the lathe bed base place) carries out the turning processing by the turning processing unit (plant) to work piece surface on same board, thereby eliminated and on different platform, carried out the mismachining tolerance that grinding, turning bring respectively, improved the surfacing machining accuracy and the quality of workpiece (particularly ball valve body), operating efficiency has also obtained corresponding raising.
Five, the specific embodiment
Referring to figs. 1 through Fig. 3 as can be known, the car mill processing integrated mechanism of ball valve body car grinding machine of the present invention, comprise lathe bed base 1, ball-clamped device 51, heading device 52, mill rotating control assembly 53 (being contained in the side edge of lathe bed base), on described lathe bed base 1 and at the opposite face place of mill rotating control assembly 53 and the side edge of ball-clamped device 51 (with heading device 52), turning processing unit (plant) 50 is housed; Described turning processing unit (plant) 50 vertically moves Control Component 56 by car ball saddle 3, car ball slide plate 4, headstock assembly 55, slide plate and the horizontal mobile Control Component 57 of saddle constitutes.
Wherein, car ball slide plate 4 is contained on the car ball saddle 3, headstock assembly 55 is contained on the head of car ball slide plate 4, slide plate vertically moves Control Component 56 (being contained in the afterbody of car ball slide plate 4) and links to each other with car ball slide plate 4, and the vertically moving of control car ball slide plate and headstock assembly, the horizontal mobile Control Component 57 of saddle links to each other with car ball saddle 3, and control car ball saddle laterally moving on lathe bed base.With the Working position to the ball valve body of need turning processing carry out headstock assembly 55 vertically with the lateral attitude adjusting, help the cooperating of turning processing and grinding, in order, carry out smoothly.After the mill of mill rotating control assembly carried out grinding to the surface of ball valve body, (at the lathe bed base place) carried out the turning processing by the headstock assembly of turning processing unit (plant) to workpiece ball valve body surface again on same board.
Referring to figs. 1 through Fig. 3, for can be more firm to the clamping of ball valve body location, its headstock spindle can bear powerful radial load and axial force, described ball-clamped device 51 (it is installed on the lathe bed base 1) comprises headstock 2, headstock spindle 17, headstock stationary center 16, main shaft rotation controling mechanism; Between described headstock 2 and headstock spindle 17 and at the front end place of headstock spindle 17 (from outside to inside), Biserial cylindrical roller bearing 8, angular contact ball bearing 9 (a pair of) and taper roll bearing 10 are housed successively, angular contact ball bearing 15 (totally three) is housed between described headstock 2 and headstock spindle 17 and at the afterbody place of headstock spindle 17; On the outer end of described headstock spindle 17 and at headstock stationary center 16 places, chuck 14 is housed.The replaceable headstock stationary center of different workpieces is regulated, so that clamping safety, repetitive positioning accuracy height.
Wherein, as shown in Figure 1, described main shaft rotation controling mechanism is the double reduction formula, by motor 22 (frequency control), motor drum in-phase 19, intermediary's synchronizing wheel 20 (being contained in the place, bottom of headstock 2), the main shaft synchronizing wheel 18 that is contained on the headstock spindle 17 constitutes, between motor drum in-phase 19 and the intermediary synchronizing wheel 20 by being with 23 to be connected synchronously, be with 24 to be connected synchronously by another between intermediary's synchronizing wheel 20 and the main shaft synchronizing wheel 18, rotating by this double reduction formula (is that motor 22 starts and drives motor drum in-phase 19 successively, intermediary's synchronizing wheel 20,18 rotations of main shaft synchronizing wheel) make headstock spindle drive processing work 25 (particularly ball valve body) and do the rotation of low speed reinforcement.This ball-clamped device withstands workpiece by its headstock stationary center, and by chuck gripper workpiece, makes the head clamping firm position of workpiece (ball valve body); Owing at the front end and the afterbody place of headstock spindle some groups of polytype bearings have been installed, can have been born powerful radial load and axial force when making the headstock spindle rotation.Thereby improved the Grinding Machining Quality of workpiece (particularly ball valve body).
Referring to figs. 1 through Fig. 3, for the bearing capacity that can improve heading, and improve headstock spindle axis concentricity with above-mentioned ball-clamped device, described heading device 52 comprises that tail stand 5, tailstock oil cylinder 6, top and main shaft, tailstock upper padding plate 11, tailstock lower bolster 13, tailstock slide plate 21 and slide plate move controlling organization 26; Described top and main shaft (both make with this) is the tail spindle 7 of one axle construction; Described tailstock lower bolster 13 is provided with dive key 12, is slope shape setting (as shown in Figure 3) by dive key 12 between tailstock upper padding plate 11 and the tailstock lower bolster 13, and between tailstock upper padding plate 11 and tailstock lower bolster 13 adjustment screw 27 is housed.Promptly tailstock upper padding plate 11 and tailstock lower bolster 13 are linked together by adjustment screw 27.Make oblique move (promptly slowly rise or downslide) of tailstock upper padding plate on the tailstock lower bolster, the center High variation of regulating tail stand 5 by rotating adjustment screw.
Wherein, slide plate move controlling organization 26 can be laterally move, the SERVO CONTROL screw mandrel kind of drive, with control tailstock slide plate carry out laterally moving and near or leave processing work 25.During heading work, move controlling organization drive tailstock slide plate by slide plate and make tail spindle, and make tail spindle press closer the afterbody of workpiece by the work of tailstock oil cylinder near processing work.Owing to designed tail spindle, effectively improved the bearing capacity of heading with one axle construction; Because the center High variation of tail stand can realize oblique move (promptly slowly rise or descend) of tailstock upper padding plate on the tailstock lower bolster by rotating adjustment screw, improve the concentricity of the headstock spindle of tail spindle and this ball-clamped device with this, realize that axis is concentric.Thereby improved the Grinding Machining Quality of workpiece (particularly ball valve body).
With reference to Fig. 1, Fig. 4, for can carry out in time mill main shaft and main shaft casing, effectively cooling, described mill rotating control assembly 53 comprises mill motor 31, mill main shaft 38, main shaft casing 39, mill 40, goes up planker 41, mill saddle 42, mill base 43, motor transmission mechanism; Have box cavity 44 in the described main shaft casing 39, this box cavity 44 is by being contained in oil inlet pipe 35 on the main shaft casing 39, flowline 37 and link to each other with oil cooling machine 36.
Wherein, oil cooling machine 36 can be placed on the side of mill base 43, the outside of main shaft casing 39; Motor transmission mechanism can be by the electrical machine belt pulley on the mill motor shaft 32, be with 33 synchronously, main shaft belt wheel 34 constitutes.During the mill electric motor starting, by electrical machine belt pulley 32, synchronously with 33, the transmission of main shaft belt wheel 34 makes the mill main axis rotation, carries out grinding work thereby drive mill.Simultaneously, the fluid in the oil cooling machine 36 flows in the box cavity in the main shaft casing by oil inlet pipe, and flows back to the oil cooling machine again through flowline and recycle, to mill main shaft and main shaft casing carry out in time, effectively cooling.Thereby improved mill main shaft operating efficiency, prolonged its service life.