SU1273229A1 - Blank feeding device - Google Patents

Abstract

The invention relates to the field of machinery engineering in particular, J (N o s with GS N3 CO stations for supplying blanks. The invention provides 1 supply of blanks with higher performance characteristics and with higher reliability of the device, since the drum is filled with windows and installed in them removable cassettes, and the drive of the drum rotation is made, filled with electromechanical, removable plates are mounted on the cogwheel of which I will interact

Description

microswitches of the drum turn drive. The workpieces are delivered from the cassette 25, which is located on the working position, by means of a rod 3, which is used for vertical movement of the workpieces (EPRP) 2. After the stack of workpieces has been produced, the rod 3 returns to its original position and the drum rotation drive starts. When the next cassette is occupied

positions under the MSSP bar 3 2 removable plates 14 of the wheel carrier 12 interact with microswitches 33, which command the drum 21 to stop and the MHP 2 turn on. Empty cassettes are removed from the drum windows and the filled cartridges are installed and fixed in their place. 8 il.

The invention relates to mechanical engineering, in particular, to instrument making and can be used primarily in the technological process of cold sheet forming based on industrial robots, in cooperation with Flexible Production Modules (GMP) under conditions of small-scale and serial production.

The purpose of the invention is to improve the performance and reliability of the device.

FIG. 1 shows the proposed device; in fig. 2 — node I in FIG. U in FIG. 3 - node II in FIG. 1J in FIG. A - node III in FIG. 1, in FIG. 5 shows unit IV in FIG. one; in fig. 6 - swivel drum; FIG. 7 - cassette; FIG. 8 is a view A of FIG. 7

The device includes a bracket 1 on which the mechanism 2 for vertical movement of the workpieces is installed, equipped with a rod (pusher) 3 with a replaceable nozzle 4. On the bracket 1 there is also a holder 5 on which the supports 6 and 7 of rotation are mounted. On the cage mounted drive shaft 8 with locking nuts 9 and 10.

The drive key v. Aa 8 has a slave link of the intermittent rotation mechanism - the Maltese cross 11, which receives rotation from the toothed wheel 12 with fingers (tsevki) 13 fixed on it and the plates 14, whose free end is bent. The design of the plates provides for their interchangeability and quick changeover.

The gear 12 receives rotation from gear 15, the latter mounted on the shaft of the electric motor 16 mounted in glass 17, which. mounted on the holder 5. In the upper part of the holder 5 is mounted on the bracket 18, the sensor 19 of the upper position of the blanks. In the lower part of the holder 5, an electromagnetic lock 20 is fixed, which enters the opening of the rotary drum 21. FIG. 6 shows a rotary drum 21 consisting of an upper disk 22, four columns 23, a lower disk 24.

The rotary drum 21 is mounted on the drive shaft 8, fixed with nuts 9 and 10, while it is supported by the supports 7 of the holder 5.

Depending on the size of the blanks, the discs can be made in two, four, and more positions.

The quick-change cassettes 25 are inserted into the rotary drum 21 mounted in the holder 5. Quick-change

the cassette (Fig. 7) consists of an upper plate 26, columns 27, a lower plate 28, catchers 29, a handle 30 with a locking element, a cracker 31 (fig. 2) inserted into the groove, mounted

holder 5. To compensate for variations in the dimensions of the workpiece within the tolerance floor, eccentric washers 32 are installed on the cassette, allowing adjustment

the position of the columns 27. On the bracket 1 there is a microswitch 33.

The device works as follows.

In the initial position, the rod 3 of the mechanism 2 vertical movement

the blanks are turned on, the boom 3 in the window in the holder 5, the window of the lower disk 24 of the rotary drum 21 and the window of the lower plate 28 of the quick-change cassette 25 move upwards, the stack of blanks placed in the quick-change cassette 25. The upper level of the foot of the blanks is monitored and controlled by the upper position sensor 19, which controls the mechanism 2 for the vertical movement of the blanks. When making a stack of workpieces, the rod 3 moves down to its original position and issues a command to turn on the rotation mechanism of the rotary drum 21 and turn on the electromagnetic lock 20. When the electromagnetic lock is turned on, his finger comes out of the mounting hole of the lower disk 24 of the rotary drum 21. The gear motor 16 turns on. 15, fixed on the engine shaft, receives a rotation of the gear-carrier 12 with fingers fixed to it (tsevkami) 13. Finger 13 enters the groove of the Maltese cross 11. Proisho um rotation of the Maltese cross 90. At the same time, two plates must be installed through the 180 ° wheel on the cogwheel 12 and alternately interact with the microswitch 33. If necessary, rotate the Maltese cross 180 by one plate 14 to prevent interaction with the microswitch 33. Since the Maltese cross is rigidly fixed to the drive shaft 8, then the rotary drum 21 is rotated. When rotated, the plate 14, which is stuck on the cogwheel 12, presses the microswitch 33, which gives a command to turn off the electric the motor 16, to turn off the electromagnetic lock-20, in which the finger of the electromagnetic lock 20 enters the installation hole of the lower disk 24 of the rotary drum 21, and the inclusion of mechanism 2

vertical movement of blanks. As a result of the rotation of the rotary drum 21 to the working position above the rod 3, the next fast-loaded cartridge 25, filled with blanks, rises. After this, the cycle repeats. Without stopping the device, the quick-release cassette 25 released by turning the handle 30 around its axis upwards from the horizontal position is released from fixation and removed from the rotary drum 21. The next loaded quick-change cassette 25 is inserted into the free window of the rotary drum from the vertical position, the quick-change cassette is locked in the rotary drum 21.

Claims (1)

Invention Formula A device for supplying blanks containing a drum mounted on an arm that can be rotated from the drive with windows and blanks for the blanks placed in these windows and a mechanism for vertical movement of the blanks, characterized in that, in order to increase the performance and reliability of the device, the drum is as upper and lower disks interconnected by vertical columns and a central shaft with a shank, each cassette is made in the form of an upper plate with a handle and a fixed element The cassette in the window of the drum, the bottom plate and the vertical columns are connected to the plate with eccentric washers, and the drum rotation drive is made in the form of an electric motor with a gear, a Maltese cross rigidly connected to the shank of the central shaft, and a gear that interacts with the gear and the Maltese cross drove with mounted on it with the ability to adjust their position and removal plates interacting with the microswitches of the drum turn drive. thirty 3 / V 2 fig 3 2} 2 YU. 21 Sh // L eight on (- FiM lpi / 8. AT fie, 7 Budfi Fig.8