SU158508A1 - - Google Patents

Description

For grinding the outer surface of the pipes, machine tools are used in which the pipe receives axial translational movement with respect to the grinding wheels that are machined on the grinding head rotating around the workpiece.

The described machine makes it possible to carry out a rough and clean abrasive pipe ejection at the same time on a single pass, which increases its production. The peculiarity of the machine is that its grinding head is made in the form of blocks fixed to both ends of the rotating hollow spindle. Each block carries several abrasive wheels, received through planetary gearboxes} rotation around the workpiece and pressed to it by pneumatic cylinders mounted directly on the blocks. To ensure the thickness of the layer to be removed and to increase the yield of pipes, the machine uses an axial translational displacement of the workpieces relative to the grinding wheels running in them, specified by the synchronized moving back and forth tails with coaxial centers for the installation of the pipe being processed. To maintain the constant circumferential speed of each abrasive wheel as it is worn, a follower roller is mounted on the gearbox housing, which informs it of rotation, interacting with the lever during rotation of the grinding head,

control dachshchsm, noobiinaioiiuiM engine speed vrasspi circle when the latter is worn.

FIG. i schehelatichsky kokazap described machine, side view; un. 2 - the same in terms of; in fig. 3 - section I / 14 on fng. one; in fig. 4-section;: about LLiafng. in fig. about d

cut; pas figs. 6 - then jo, front view.

The described machine:; g: shl11fs1; a1i1 the outer surface of the pipe consists of the following main components; ; orphose, -: qyo 1 go.u.vnc / ,, nodayusche device (device 2), drive predceii grandma and and ococ:, i: .ii; udirrami 5 for the installation of the processed pipes (billets) 6, and so: 4) and 7.

For the sake of productivity of the machine by drying one-matched; sy1; oglktvoy and purely processing for o; ui: ir;,) oxo; i, the grinding head consists of zp1; reg1, and both ends in;) : go iiii 9 blocks 10 n //. B.ok 1Q carries Ipii ab chizivy circle 2 for Chervovoy Sbrabotvn.

ha 13 for chistssm processing. Wokrcht Illiinsl 9 is viri.1 there is a drink 14, and e; o; 1i1n the ends are internal jagged bennyi sleeve 14 and poli 1ipindles 9 gol-Bki G1rpg, -; ai: 1) rotation with de1; 1us; 1mi from electroplating / 5 and 6 s) -: iii. The swirly circles 12 and 13 receive a planetary rotation and the i-circle of the workpiece is processed from the sleeve i- through

the gearboxes 17 and are pressed against it by pneumatic cylinders IS, having been mounted and directly on the blocks. Air B cylinders are fed through manifolds 19. To preserve the constancy of the circumference of each abrasive circle as it is worn on the gearbox housing 17, telling it the mounting roller and the follower roller 20, which interacts with the lever 21 and rotates the lever during rotation of the grinding wheel. It is installed by the first sensor 22, which increases the number of revolutions of the engine 16 for rotating the circle when it is rotated.

The middle pieces for processing the workpieces are stacked in one; the first on the inclined rack 7. Several metering units 23 with flag switches 24 are installed along the rack 7, with the help of which the workpieces are fed to the workers.jif gpfia.M of the machine. Depending on the length of the workpieces, this or that dispenser 23 is triggered, “facing the position of the button switches 24. When the dispenser dispenses, the workpiece acts on the brush sensor 25, which sends a command to the actuator 26 to move the headstock 3 to the side of the workpiece.

The headstock 3 is mounted on a trolley 27 moving along the directions of 28 and has a center 5 with a spring of 29. The headstock can move either independently with the butt of actuator 26, or simultaneously with the back baboon 4 from the feeder 2 with the help of price 30.

When the headstock 3 is moved, the centers 5 fix the workpiece, and 29 are compressed before the unlock 3J is delivered to the limit switch 32, the gang command is to turn off the drive 26 and turn on the input 2, with which the workpiece moves in the direction and on the head.

When approaching the front end of the workpiece to the chery abrasive wheels 12, the stop 33 acts on the limit switch 34, which gives the command to press the grinding wheels 12 to the workpiece, and the pipe processing begins. During the approach of the front end of the workpiece to the finishing abrasive wheels 13, the stop 33 acts on the limit switch 35, sending a command to press the grinding wheels 13 to the workpiece, and begins:; processing. At the approach of the rear end of the workpiece to the longitudinal circles of G2, the limit switch 36 under Bozdeyetnnam Unor 37 sends a command to shift the clips. circles 12 from the workpiece, and the black pipe ooorastka s: 1kka G: 1Nrpets. During the approach of the rear end of the pipe to the grinding wheels 13 unnor 3 / air; There is a switch on the end of the switch 38, but the command to pick up from the grinding work piece

circles 13, and the finishing of the pipe is completed.

When the workpiece 6 leaves the grinding head 1 and / unor 37, it operates on the limit switch 39, which sends a command to disconnect the sprocket 40 from the actuator 26. The fore headstock can move and the back headstock will continue and release the machined pipe, which rolls along the rack 8 into the card. 41. When moving along the rack 8, the pipe acts on the brush sensor 42, which sends a command to connect the sprocket 40 to the actuator 26 and to switch the direction of movement of the actuator 2 to return, e1; and the front and rear headstock to its original position.

The movement of the attendants occurs until the impact of the unor 33 on the limit switch 43, after which the drive 2 stops and the cycle of operation of the machine is repeated.

Subject invention

Claims (3)

1. A grinding machine for the surface of a pipe that receives axial translational movement relative to rotating abrasive wheels rolling on it, but placed on a grinding head rotating around the workpiece, characterized in that, in order to improve its performance by simultaneously performing partial and rough treatments in one pass, grinding the head is made in the form of zakaplichnye at both ends of the rotating hollow spindle blocks, each carrying a number of abrasive wheels, receiving through Redactor planetary rotates around the workpiece and pressing, and pneumatical cylinders attached to it, equipped with pneumatic cylinders and mounted on blocks. 2. The machine tool according to claim I, characterized in that, with the aim of ensuring the constancy of the thickness of the material stored and the increase in the yield of the pipes, the axially moving front and back babk1; with coaxial centers for installation of the pipe to be treated. 3. Machine io neither. 1 and 2, so that, in order to preserve the constancy of the surrounding speed of each abrasive wheel and, to the extent of its wear, a rotational wave is mounted on the gearbox housing, the following wave is mounted, interacting when the grinding head rotates with the lever, it is controlled by the use of a sensor, the number of revolutions of the engine is rotated; the ring wheel when the wheel is worn, four/ f- --t - f. P.: ...., ....: ... Lr: ij.:;: --Y- i. ESJ  -.-.-, V,; - .. V44rjiH., ; T J i / VVVxJ /. FIG. . .:: U-; --I; PU. ls I o.-b.-, g 1gU Ш4иГ 0 17