SU1551444A2 - Three-high sheet bending machine - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to three-roll bending machines. The purpose of the invention is to expand technological capabilities and improve the quality of bending. On base 1, racks 2 and 3 are mounted, connected by straps 4. Slides 7 and 8 are moved along rails of the racks. The side and middle rolls are supported by sliders 7 and 8. The bearing of the right support of the roll is pressed against the stand 2 of the folding support 17. The left support of the middle roll is an L-shaped housing 18 with a cylindrical support section "G" and a shock absorber 19, which interacts with a stop 20. A rack 3 has a semicircular nest with a groove and a protrusion, which makes it possible to precisely fix the left support of the forward inclined roll when it returns after removing the finished shell. The quality of the shells is enhanced by ensuring in the process of bending the parallelism of the axis of the front roller to the axes of the rear and upper rollers by creating equal rigidity of securing the left and right supports of the inclined front roller. 5 il.

Description

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for the side and middle rolls serve sliders 7 and 8. The bearing of the right support of the roll is pressed up to the stop in the rack

2 folding support 17. The left support of the middle roll serves as an L-shaped case 18 with a cylindrical support bag and a shock absorber 19, which interacts with the stop 20. On the stand

3 a semicircular slot with a groove and a protrusion is made, which allows

fixing the left support of the forward inclinable roll when it returns after removing the finished shell The quality of the shells is enhanced by ensuring during the bending the constant parallelism of the axis of the forward roll of the rear and top roll axes by creating equal rigidity of the left and right support of the inclined front roll. 5 or „

The invention relates to the processing of metals by pressure, in particular to roller bending machines, and is an improvement on the bending machine according to the authors. St. № 1362536о

The purpose of the invention is to expand the technological capabilities and improve the quality of bending by ensuring, at the time of bending, equal rigidity of both front roll supports,

FIG. 1 shows the proposed machine, a general view; FIG. 2 shows a section A-A in FIG. on fig.Z - flexible products; FIG. 4 is a view B of FIG. one ; figure 5 is a view In fig „1„

On the base 1, racks 2 and 3 are installed, connected by brackets 4. The left column 3 is equipped with a groove a and a projection b with a semi-circular nest. On the inner surfaces of the uprights 2 and 3, the guides 5 and 6 are mounted, in which the sliders 7 and 8 move. In the space between the posts, the lower rolls 10 and 11 and the upper pressure roll 12 are installed in the bearings 9. 10 and 12 serve as sliders 7 and 8 which, by means of screws 13 and worm gear reducers 14, move together with rollers 10 and 12 in the direction of the roller 11 to adjust the gaps between the rollers, while the left tail of the roller 12 moves freely in the groove a of the pillars 3.

To ensure synchronous movement of the sliders 7 and 8, respectively, in pairs, the screws of the gearboxes 14 are connected by rollers 15 and are provided with turnkey squares for easier rotation. i

The bearing 9 of the right support of the roll 11 is pressed up to the stop in the rack 2 swivel from the pneumatic actuator 16 folding support

17 with a throat c. The second, left, support for roller 11 is an L-shaped cone 18 with a cylindrical support bar and a shock absorber 19 cooperating with the stop 20. The cylindrical support juice of the folding support 17 from the action of the pneumatic actuator 16 is pressed all the way into the socket of the protrusion 6 of the stand 3 „

The tilting and lifting mechanism of the roller 11 is a pneumatic actuator 21, acting by means of the sliding bearing 22 and the housing 23 on the roller 11 "Under the roller 11 on the base 1, a guide groove 24 is mounted for orientation and output of the product 25" The original billet 26 with pre-edged edges bends around the bottom work roll 11. The rolls 11 and 12 are rotated by means of the hinges 27 and the drive 28,

The device works as follows,

A billet 26 with folded edges is exposed parallel to the axis of the work roll 11 and, resting on it, after switching on the drive 28, moves up to the stop into the roll 10 and begins to bend. After the bending is completed, the actuator 28 is turned off and, without waiting for the inertial rotation of the rolls 10-12 and the finished product 25 to completely stop, the supports 16 retract the supports 17 from the right support of the roller 11 and the support section of the housing 18. At the same time, the actuator 21 inclines the roller 11 together with the product 25 to the lower position. As a result, the product 25, guided by the groove 24, slides down from the lower work roll 11 and is moved out of the limits of the IH-machine. The actuator 21 raises the roll 11 in a horizontal position7 and folding support 17 shed in end 51

The left and right support of the roll 11 is securely fastened.

The device is prepared for bending the next product.

During the bending process, the quality of the cylindrical shells from the plate blanks is improved by ensuring during the bending process a constant parallel axis of the front roll axes of the rear and upper rolls by creating equal rigidity of the left and right anvil roll support

In addition, when bending a plate blank, the labor intensity of shell production is reduced.

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eliminating the subsequent calibration operation.

Claims (1)

Invention Formula five Trehvalkova sheet bending machine according to ed. St. No. 1362536, characterized in that, in order to expand technological capabilities and improve the quality of bending, the L-shaped housing is provided with a cylindrical support wing, the second support of the front roll is made similarly to the first, on a rack bearing the second support, 15, there is a closed groove for accommodating the shank of the upper roll and a protrusion with a semi-circular nest, while the support juice is placed in the said nest. P fig.Z but Fiel Editor S.Patrusheva Compiled by V. Shabrova Tehred L. Oliynyk Order 294 Circulation 600 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Btd b sixteen Fyy.5 Corrector S.Cherni Subscription