SU512024A1 - Device for loading and unloading multi-spindle turning semiautomatic devices - Google Patents

Description

one

The invention relates to the field of machine tool construction and is intended primarily for the loading of parts such as sleeves with the shoulders of horizontal multi-spindle semi-automatic lathes.

Charging devices are known for multi-spindle semi-automatic lathes, containing a gripping body, mounted on a longitudinal support of a machine and performing reciprocating movements. The delivery-gripping body of such a device is made in the form of a collet chuck, is co-located with the spindle and is driven by a pneumatic actuator. The blanks to be machined are fed to the collet chuck area by a special feed mechanism mounted on the upper cross support of the machine. At some distance from the collet chuck, a restrictive strap is set to be removed from the collet of the machined part. The pick-up body performs three reciprocating movements per cycle: from the initial position to the spindle and back, as a result of which the processed part is picked up and dropped into the discharge chute; from the initial position to the loading zone, where the collet takes another workpiece from the feed mechanism; and also makes a reciprocating movement to the spindle} o and back, resulting in the loading of the workpiece in the cartridge glass.

However, to complete a full cycle of operation of such a device at boot, and you

The loading of the piece blanks of the delivery-gripping body performs several reciprocating movements, and the engagement and disengagement of the collet chuck of the delivery-gripping body with the part (workpiece) that is in the machine's chuck is possible only after the spindle unit of the machine has completely stopped. In addition, this device contains a special feed mechanism mounted on the upper cross slide and

informing the transfer of the next billet to the loading zone with the help of the lever, the gear sector and the slats.

The aim of the invention is to increase productivity and simplify the design.

devices by providing loading and unloading of parts in one double stroke of the device drive by a single pick-up device, as well as by combining the engagement and disengagement of the delivery and gripping body

parts located in the chuck of the machine with the BODOTOM spindle machine unit.

Claims (1)

This is achieved due to the fact that, in the proposed device, the gripping body mounted on the longitudinal slide and reciprocating is made with a new one, fitted with a frame at the end with a groove corresponding to the profile of the workpiece that interacts when rotated with a swinging prism, is articulated on the longitudinal caliper and combining the loading and unloading trays with the spindle axis, respectively, during loading and unloading. The initial position of the gripping body is closest to the spindle, which makes it possible to combine the squeezing and uncoupling of the part clamped in the machine chuck with the profile groove of the gripping body when the spindle unit of the machine is turned. The interaction of the rotary delivery-gripping body during its translational motion with the swinging prism, which combines the loading and unloading chutes, provides unloading of the finished part and loading the workpiece in one double stroke of the delivery-gripping body. FIG. Figures 1 and 2 show the proposed device placed on the machine in two projections; in fig. 3 - scan n profile of the loop-like groove of the pushing drum. The proposed device consists of loading 1 and unloading 2 trays, a cutter 3, a swinging prism 4, a spring 5 (Fig. 1), a nodal-gripping body made in the form of a spring-loaded swivel drum 6 with a frame at the end, and a stationary hydraulic cylinder 7 (Fig. 2). The loading and unloading trays are mounted on the machine mirror with the help of the brackets 8. The cutter is installed on the loading tray and is pivotally connected to the cross-section 9 with the cross-support 10 of the machine. Swinging prism p delivery-gripping body mounted on the longitudinal support 11 of the machine in the loading position. The hydraulic cylinder 7 is located in the sliding holder 12, which is rigidly connected by a thrust 13 with the machine bed. The rotary drum of the gripping body is mounted on the rod 14 and is spring-loaded in the direction of the spindle 15 by the spring 16. The drum has a frame with a groove at the end, the profile of which corresponds to the profile of the part, and a profile groove on the outer cylindrical surface. In the profile groove includes a spring-loaded 17 finger 18, KOTopbiii installed PA fixed bracket 8. The device works as follows. When turning the spindle unit of the machine, the spring-loaded drum 6 comes in the profile groove beyond the shoulder of the degal removed. After the spindle unit stops and depress the parts in the machine chuck, oil is fed from the control mechanism into the cavity of the hydraulic cylinder 7 {fig. 2 indicated by arrow A). The rod 14 together with the drum 6 is moved to the right. The drum fastened on the rod, moving along with the rod, pulls the part from shnindel 15 onto the prism 4. At the same time, the finger 18 passes the straight section of the groove in the drum 6. Next, the finger 18 meets the inclined section and rotates the drum around the axis of the rod. At the same time, the drum frame presses the prism protrusion 4, which rotates around an axis, stretching the spring 5 until its face coincides in direction with the discharge chute. The unloading part is rolled down the discharge tray by the action of its own weight. At this point, the inclined section of the profile groove of the drum 6 ends, and the finger 18 moves again along a straight line: the first section. On the straight y-1 & st line, the groove has an irreducible depth, and the naft 18 is pressed from the drum, compressing the spring 17. Then, with the finger 18, it meets the inclined groove and rotates the drum to its original position. Following the drum, the prism 4 under the action of the spring 5 is also reversed to its original position. Spring loaded ram 18 jumps down from the stunenka into a deeper hp linear groove. After that, the Cutter 3 is actuated, driven in motion through the pull 9 from the cross support of the machine. The next billet rolls under the action of its own weight along loading tray 1 into a prism 4, the face of which is the continuation of the loading tray. Further, from the control mechanism, the oil is pushed into another cavity of the hydraulic cylinder 7 (in Fig. 2 it is indicated by arrow B). The rod 14 and the drum 6 fixed on it move to the left. The butt end of the drum meets in its thread the workpiece and does not place it postunately along the prism in the direction of the spindle. The finger 18 moves along a straight groove, therefore the movement of the drum 6 is only translational and the prism 4 does not overturn. With a further movement, the workpiece is loaded into the spindle and the spindle unit is rotated. The workpiece leaves the loading zone, freeing the spring-loaded drum, which, under the action of the spring 16, jumps out to the extreme left side, after which the profile groove of the drum goes behind the shoulder of the finished part that came in the loading position. Apparatus of the Invention A device for loading and unloading multi-spinning semi-automatic lathes with parts coming from corresponding lots, containing a pick-up body mounted on a longitudinal support and reciprocating and retracting movement, characterized in that, in order to increase productivity and simplify device construction, - the gripping Rgan is made rotatable and is provided on the heel with a frame with a groove corresponding to the drill of the part that interacts when swiveled with the swinging prism and is hinged on the longitudinal slide and combining loading and unloading trays with pindel axis, respectively, during loading and unloading. FIG. 2 В- В G - G deployed