SU831536A2 - Rotary indexing apparatus - Google Patents

Description

(54) ROTARY CLEARING DEVICE

one

The invention relates to machine tool building and can be used to improve machining accuracy, as well as expanding the technical capabilities by controlling the positioning of the faceplate with the reuvia fixed in it relative to the workpiece in automated machine tools with a programmable machining cycle.

According to the main author. St. No. 462699 is known a rotary dividing device with a faceplate fixed by a cylindrical retainer, positioned into the sleeve and equipped with a LINE element, extending this sleeve, and made a symmetrical plane passing through the axes of the faceplate and retainer 1.

The purpose of the invention is to improve the accuracy and rigidity of the positioning of the faceplate and wear compensation of the cutting tool.

The goal is achieved by the fact that the device is provided with a lock case, controlling and fixing wedges and drives for their positioning, with the lock body connected to the device body by an elastic element, and

the fixing wedge is installed with the possibility of interaction with its oppositely located surfaces, respectively, with the shells of the device and the lock.

In addition, the positioning drives of the control and fixing wedges are made respectively of the step and membrane hydraulic ones.

FIG. 1 shows a rotary dividing device, a longitudinal section; in fig. 2 shows section A-A in FIG. one.

The rotary dividing device comprises a housing 1 consisting of two rigidly connected parts, in which the shaft of the faceplate 2 with the locking sockets 3 pressed into it is mounted. The latch 4 is equipped with a symmetric plane passing through the axis of the faceplate and the latch, wedge element 5 holding the guide sleeve 6. On lock 4

Claims (2)

there are two springs 7 and 8 and a driven sleeve 9 connected to the wedging and uncoupling drive of the link 10. The latch 4 is installed in the housing 11 connected to the device case 1 by means of an elastic element 12 integral with the housing 1. The location of the clamp in the case, associated with the device case by means of an elastic element, provides the possibility of moving it in place with a fixed nylon plate relative to the device case in a direction perpendicular to the plane passing through the axes of the clamp and the faceplate, and allows you to eliminate the faceplate positioning error after fixation, as well as compensate for the wear of the cutting tool. On both sides of the housing 11 of the retainer 4, there is a control 13 and a locking 14 wedge, which interact with the retainer body 11 and the device body 1, and the working surfaces of the locking wedge 14 interact with the retainer bodies 11 and 1 through the roller Kii 15. The control wedge 13 through the screw gear 16 is connected with the stepper motor 17 and the locking wedge 14 through the nut 18 with an irra and a left-hand thread, which serves to adjust the wedge position, is connected with the diaphragm actuator 19. The presence of the said wedges with the drives and their positioning allows for the movement of the fixed faceplate to correct its position to the subsequent reliable fixation of the body (the rixator relative to the body of the device for pop-up | rigidity of the system. The device operates as follows. The sleeve 9 iod the action of the link 0 compresses the spring 8 and holds the latch 4 in the retracted position. At the same time, the wedge element 5 does not burst the guide sleeve 6, and in this interface there is a guaranteed gap. In the interfaces of the same controller 13 and the fixing 14 wedges with the device cases 1 and 11 detents 4, there is no comfort gap, i.e. this system is closed. When fixing the faceplate 2, when the link 10 of the drive does not impede the movement of the water sleeve 9, under the action of the spring 8, the clamp 4 enters the locking slot 3 of the faceplate 2. Before stopping, the clamp 4 moves with the drive sleeve 9 and the wedge element 5. After stopping the clamp 4, the drive sleeve 9 under the action of the link Yu moves the wedge element 5 relative to the clamp 4, compressing the spring 7. This accomplishes the bursting of the guide sleeve 6 and eliminates the gap in conjunction with it of the clamp 4. Thereafter, if necessary, remove the error The plate for positioning the faceplate or introducing correction of the cutting tool position by the amount of its wear, under the action of the diaphragm hydraulic actuator 19, moves to the left (Fig. 1) the locking wedge 14, thereby releasing the casing 11 of the retainer 4 and in the interface of the control 13 and the fixing 14 wedges with the device bodies 1 and 11 of the fixer 4 gaps are formed. Then, at the command of the active control sensor or operator through the machine control system, the stepper motor 17 moves the control wedge 13 by a screw gear 16 by an amount proportional to the amount of correction, and turns off. Due to the interaction of the inclined surfaces of the control wedge 13 with the device body 1 and the latch body 11, the body 11 is displaced on an elastic element 12 in one direction or another, depending on the direction of movement of the control wedge 13, turning the fixed faceplate 2. After installing the face plate 2 into the required The position for final closing of the system, fixing the wedge 14 under the action of the elastic force of the diaphragm of the hydraulic actuator 19 moves to the right (Fig. 1), selecting gaps in the joints of the control 13 and fixing 14 with wedge-apparatus body 1 and the retainer 11 and creating tension of the system. When released by the action of the drive link 10, the drive sleeve 9, compressing the spring 8, first moves the wedge element 5 relative to the clamp 4, forming a gap in conjunction with the guide sleeve 6, and then removes the clamp 4 from the retainer slot 3 of the faceplate 2. Invention 1 Rotary dividing device according to ed. St. No. 462699, characterized in that, in order to increase the accuracy and rigidity of the positioning of the faceplate and compensate for the wear of the cutting tool, the device is provided with a lock body, control and fixing wedges and drives for their positioning, and the lock body is connected to the device body by an elastic element, and the control and fixing wedges are installed with the possibility of interaction with their oppositely arranged surfaces, respectively, with the enclosures of the device and the fixture. 2. The device according to claim 1, characterized in that the positioning drive of the control wedge is made stepwise, and the drive of the fixing wedge is membrane hydraulic. Sources of information taken into account during the examination 1. USSR author's certificate No. 462699, cl. 23 Q 17/02, 1973. / 7 Rig.2