SU1371879A1 - Abrasive-cutting-off machine for cutting material at angle - Google Patents

Abstract

The invention relates to a machine tool industry and can be used in machine tools intended for cutting material with abrasive wheels. The purpose of the invention is to simplify the construction and increase the productivity by reducing the non-forest areas. The machine contains a tailstock 2 with an abrasive wheel I, rigidly mounted on the base 8 with the possibility of rotation around the vertical axis of the jig 9, and a wheel wear compensation mechanism consisting of two sectors 10 and 19, one (10) of which is kinematically associated axis 3 swing spindle head 2 and carries the cam 14, installed with the ability to interact with the limit switch 21 wear circle. On the lateral surface of sectors 10 and 19, circular grooves of spindle head 2, which are equally spaced from the axis 3 of the swing of headstock 2, are rigidly fixed to the body of spindle headstock 2 and equipped with a half-12, which is located in a circular groove and is designed to attach an additional cam 13, and also bears on itself rigidly fixed left 15 and right 16 stops. When the spindle head 2 swings, the stops 15 and 16 interact with the left and right ends of the additional slide 17 inserted into the device and installed in the circular slot of the sector 19 and the end switch 18. 4 Il. (L

Description

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The invention relates to a machine tool industry and can be used in machine tools for cutting materials with abrasive wheels.

The purpose of the invention is to simplify the design and increase productivity by reducing overshoot of the circle.

FIG. 1 schematically shows a machine; in fig. 2 is a section A-A in FIG. one; in fig. 3 section bb b in fig. one; in fig. 4 is a section B-B in FIG. one.

The abrasive wheel I is mounted on the swiveling headstock 2, the support for which the axle 3 rotates. The limit switch 4 is placed under the workpiece 5 located on the prism 6. The clamp 7 together with the frame 8 has the ability to rotate around the clamping device O-O. c, 1 ja1ne1Ch) for clamping the workpiece 5. Sector I) is rigidly fixed on the housing 11 || 1inde1S1 () and grandma 2 and is made equal from the axis of the swing axis 3 by a circular I-shaped groove on its lateral surface, and which is located fixed by screw II of crawler 12 with cams 13 and 14 rigidly fixed on it. Left 1G) and 11rav, 1Y 16 stops are rigidly fixed on the sekgoro I) and have the ability to interact with the ends of the slider 17 on which the end switch is rigidly fixed - T1M1). having a possibility of interdejsvie with a cam 13. Sector 19 is made with a KpyioiibiM T-shaped nosom, equidistant from the swing axis 3, and rigidly closed) on a frame of N. K () ( ) The switch 21 gives the command a worn out and has the ability to () De1K twi with cam 14. Slider 17 Ago () m () wife by means of the ball 22, iipociaBKH 23, spring 24 and adjusting IIUIо Binira 25 and has the ability to move to T-slot groove sector 19 under the influence of the left 15 and right 16 stops,

, 1pi (1K works as follows. M.

In the initial state, the cam 13 interconnects with a terminal off. 1st box 18. Ilpn siToM abrasive1 circle 1 is retracted from workpiece 5 to the minimum distance and its axis (the races are at a distance of 1 hour 1 or 1.

When cutting the workpiece 5 abrasive circle | I, together with the co) spindle — the hoii of the headstock 2 turns down around the axis 3. At the end of the working feed, the axis is rotated in an ib |) animated circle and I occupies the position And and the circle 1 acts with its edge on the limit switch 4, which gives the command to removal of abrasive wheel 1 to its original position 1. Left stop 15

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is located at such a distance from the left end of the slider 17, which concerns its left end at the moment of giving the command by the end switch 4 and retraction of the unworn abrasive disc 1. When the abrasive disc 1 is worn, the left stop 15 moves the slider 17 in the T-slot of the sector 19 from left to right . The diameter of the abrasive wheel 1 is reduced to a minimum size and the axis of its rotation takes position III. The cam 14 interacts with the limit switch 21 and the latter issues the command "The circle is worn out, as a result of which the abrasive wheel 1 is retracted to the extreme position IV to change the worn circle 1 to a new one. When abrasive disc 1 is retracted to the upper position IV, the right stop 16 interacts with the right end of the slider 17 and moves it in the T-slot of sector 19 from right to left to its original position. The right stop 16 is located at such a distance from the right end of the slider 17 that it touches its end when the axis of rotation of the abrasive wheel 1 moves from the initial position I to position IV of the circle change.

Claims (1)

Invention Formula Abrasive cut-off machine for cutting material at an angle, containing a spindle head with an abrasive wheel, rigidly mounted on the frame to be rotated at an angle around the vertical axis of the clamping device, and a wheel wear compensation mechanism, consisting of two sectors, one of which is a supporting cam is kinematically connected with the swing head axis of the spindle head, and the cam is mounted to cooperate with an end belt 1 knob of wheel wear, characterized in that, in order to simplify the design and innovation due to the reduction of the circle overshoot, on the side surface of the sectors there are circular grooves equally spaced from the axis of the spindle head, while one of the sectors is rigidly fixed on the body, spindle head and provided with left and right stops, as well as a slider located in said circular the groove and intended for mounting the additionally inserted second cam, while the stops are mounted with the ability to interact respectively with the left and right end of the additional slide introduced into the machine and a limit switch installed in a circumferential groove of the second sector rigidly secured to the machine by introducing the bracket on the frame. A- / t r7oSep / yf // 77o Zi 25 (Rig. -6j7oSe /:) / 770 in-in CpU2.Z (J} U2.