SU889200A2 - Machine for rolling-on ring grooves on bellows tubular works - Google Patents

Description

one

The invention relates to the processing of metals by pressure, in particular to equipment for rolling up the transverse annular grooves on the blank tubes before forming the bellows.

According to the main author. St. No. 774685 a known machine for rolling annular grooves on bellows tubes of workpieces, comprising a mandrel with annular grooves installed at one end and mounted at the working position with annular grooves and two identical mandrels at an angle of 120 to the first one against the respective loading and unloading positions and also fixed at one end in the attachment unit, which is made in the form of a drum holder, which has the ability to periodically rotate at an angle of 120 in the plane of the arbors.

In a known machine, the operations of installing the tube onto the mandrel, occupying its new position (loading position and removing it from the mandrel), occupying the lower position (unloading position), are carried out under the action of its own weight.

The purpose of the invention is to enhance. machine automation level.

The goal is achieved by the fact that the machine for rolling the annular grooves on the bellows tubes-blanks is equipped with a loading mechanism,

5 made in the form of a disk drum and a bunker, and unloading by the on-site mechanism in the form of a disk drum, a skid mounted on the frame of the machine between the working position and loading position and a curved track moving scientific research institute of the free end of the mandrel, and an adjustable damper mounted on the frame, each the disk drum is kinematically connected

15 with a shaft-copier, with a blind expanding groove on the end plane with a depth corresponding to the diameter of the blank tube, and a length exceeding the length of the blank tube, and

20, one of the side surfaces of the groove is made at an angle to the other; in this case, in the disk drum of the unloading mechanism, the inclination of this surface is made outwards, and in the disk drum of the loading mechanism, inwards and passes through its center.

1 is a schematic diagram; figure 2 is a view of And figure 1; FIG. 3 is a diagram of a nizme boot mechanism; fig-4 is a diagram of a mechanism for unloading; figure 5 - view B in figure 4.

The machine consists of a bed 1 on which a drum holder 2 with mandrels 3-5, a rotation drive b with an electric motor 7, an instrumental block 8 connected through a reduction gear 9 with a direct current motor 10 and with a drum holder through an intermittent motion mechanism are installed. 11, loading 12 and unloading 13 mechanisms.

  The loading mechanism consists of a hopper 14 and a disk drum 15 mounted on a shaft 16, which is connected by a chain transmission 17 with a drum holder 2.

The unloading mechanism consists of a disc drum 18 mounted on shaft 19, which is also connected by a chain drive 17 with a drum holder 2, an inclined chute 20 for rolling the tubes into a container, a skid 21 bent along the movement path of the free end of the mandrel and a flap 22 mounted on the frame with the possibility of adjustment. On the disk drums 15 and 18, there are deaf grooves 22 and 23 expanding from the blank wall with a depth corresponding to the diameter of the blank tube and a length exceeding its length. The wall 24 of the groove 23 is inclined outwardly, the wall 25 of the groove 22 inwards and passes through the center of the disk drum 15.

The machine works as follows.

The blank tube from the hopper 14 rolls down the tray and gets into the groove 22 of the rotating disk drum 15 of the loading mechanism at the time of alignment of the groove 22 and the plane of the tray, and at all other moments the end plane of the drum 15 is a cutter for the tubes lying on the tray and holds another tube from rolling down.

The drum 15 makes one revolution during the operating cycle period, during which time the groove 22 of the drum 15 is installed against the mandrel 4, parallel to its axis located at the loading position. At this moment, the tube slides under the action of its own weight along the groove 22 on the mandrel 4, with which it then moves to the working position, where the annular groove is rolled on the tube using the tool block

From the working position, the mandrel in the knurled tube is moved to the unloading position, while the tube with its free end moves along the skid 21 and is kept from slipping in the intermediate positions. In the unloading position end. the tube enters a window located in the skid through which the tube slides from the mandrel into the groove 23 of the disk drum 13 of the unloading mechanism, which takes one turn during the period of the operating cycle. The tube, turning with the drum 18, rolls out of the groove 23 at the moment when the groove 23 is in a horizontal position, and using the valve 22 to provide the plane-parallel rolling of the tube along the tray 2, it allows the tubes to be laid in rows in a container.

The solution of the grooves 22 to 23 makes it possible to avoid pinching the tube between the grooves of the drums and mandrels in the loading and unloading position when the tube is moved along the mandrels while the drums 15 are continuously rotating. and 19.

The expected economic effect from the use of machines in the complex production is more than 600 thousand rubles. in year.

Claims (1)

Invention Formula Machine for rolling annular grooves on bellows tubes blanks according to ed. St. No. 774685, characterized in that, in order to increase the level of automation, it is equipped with a loading mechanism, made in the form of a disk Arabian and a hopper, and a discharge mechanism in the form of a disk drum, a skid, fixed on the frame of the machine between the working position and the unloading position and curved along the movement path of the free end of the mandrel, and an adjustable damper mounted on the frame, each DISK drum is made kinematically connected with the shaft-copier And has a deaf expanding groove on the end plane This depth corresponds to the billet tube diameter and is longer than the blank tube, and one of the side surfaces of the groove is made at an angle to the other, with the discharge mechanism in the disk drum of the discharge mechanism being made outward, and in the disk drum of the loading mechanism - inward and passes through the center of the disk drum. Sources of information taken into account in the examination Copyright certificate of the USSR 774685 for the application number 2736904 / 25-27, cl. B 21 D 15/06, 03.20.79.