SU1232378A1 - Arrangement for feeding and checking rod in machine arrangement for feeding and chrigid parts - Google Patents

Description

FIELD: machine tool industry.

The purpose of the invention is to simplify the design while at the same time increasing the reliability of operation by reducing the intermediate parts ensuring the operation of the device.

Fig. 1 shows the device in the position of actuation of a bar feed size limit switch; Fig. 2 is the same, in the position of operation of the limit switch of the absence of a bar.

The device contains a clamping collet 1 and a feed collet 2, which covers the machined bar 3. The feed collet 2 is mounted for axial movement in the intermediate sleeve 4 and is preloaded

in the middle position. After the bar is assembled, the carriage 7, the support 6, the intermediate sleeve 4 and the feed collet 2, pressed by the spring 5 to the end of the sleeve, begin to move forward. At this moment, the clamping collet 1 opens and the bar freely moves forward in its cavity. Since the rod: reel 5 has a squeezing force greater than the weight of bar 3, the system (collet 2 - sleeve 4) will be rigid as long as bar 3 does not

10 will reach the stop 20. The bar 3 is stopped by the stop 20, and the carriage 7, the bearing 6 and the intermediate sleeve 4 continue to move. The spring 5 is compressed, the feed collet 2 moves along the axis in the sleeve 6, which is located in the carriage 7. The pressure disc 8 fixed on the feed collet 2, thanks to the rollers 9 and 10,

zhesutnoy sleeve 4, therefore push

spring 5 to its groove end. The disc 8 approaches the carriage 7, presses the triangular sleeve 4 is fixed in the under-roller 9, which, compressing the spring 15,

moves the pin 11, and, consequently, tgu 12. from the limit switch 17, which gives a signal "The presence of the workpiece. Thus, to the front plate 11, the t 12, the two shoulders of the lever 13, jn It must be until the bar 3 is reached on the axis 14, and the springs 15 receive the stop 20. When the carriage moves

and 16 can interact with the final 7 forward switches in the final stage of double switches 17 and 18, one of which does not reach the bar until it stops, but, after being installed on the carriage 7, the other continues to feed the collet

starting the machine 19, when in contact or not, moving to the extreme position of the carriage 7,

contact of the rod 3 with the stop 20, placed 25 pressure disk 8 is moved relative to the turret (not shown). on the machine body 19 in the direction of the stop 20,

presses the roller 10 and rotates around the axis 14 the twin-arm lever 13, releasing the limit switch 18, which gives the signal “No bar.

The device works as follows.

When the clamping collet 1 is closed, the feed collet 2, preloaded by the spring 5, together with the intermediate sleeve 4, the support part 6 and the carriage 7 moves along the rod 3, making the required length of the workpiece. The pressure plate 8 is in this case

The proposed device allows to eliminate idle machine operating time, emergency situations, simplifies the design.

in the middle position. After the bar is assembled, the carriage 7, the support 6, the intermediate sleeve 4 and the feed collet 2, pressed by the spring 5 to the end of the sleeve, begin to move forward. At this point, the clamping collet 1 opens and the bar freely moves forward in its cavity. Since the rod: reel 5 has a squeezing force greater than the weight of bar 3, the system (collet 2 - sleeve 4) will be rigid as long as bar 3 does not

reaches the stop 20. The bar 3 is stopped by the stop 20, and the carriage 7, the support 6 and the intermediate sleeve 4 continue to move. The spring 5 is compressed, the feed collet 2 moves along the axis in the intermediate sleeve 4, hence the pressure

presses the roller 10 and rotates around the axis 14 the twin-arm lever 13, releasing the limit switch 18, which gives the signal “No bar.

The proposed device allows to eliminate idle machine operating time, emergency situations, simplifies the design.

FIG. g

VNIIPI Order 2500/12 Circulation 1001 Subsidiary Subsidiary PPP "Patent, Uzhgorod, ul. Project, 4

Claims (1)

DEVICE FOR THE FEED AND CONTROL OF A BAR IN A MACHINE, comprising a carriage, a feed collet, placed in an intermediate sleeve, which is installed in a bearing placed in the carriage, and also limit switches, one of which is mounted on the carriage and the other on the machine bed, characterized in that that, in order to simplify the design, the intermediate sleeve is rigidly fixed in the bearing, and the supply collet is equipped with a pressure disk installed with the possibility of periodic interaction with the limit switches. Figure 1 ND CO ND CO QO