RU1784343C - Flange-bending machine - Google Patents

Abstract

Usage: in mechanical engineering for bending long, narrow-band workpieces onto a rib. SUMMARY OF THE INVENTION: the machine comprises a monorail with curved sections fixed to the bed, drive carriages located inside the monorail, workpiece clamping units, the drive of the workpiece clamping unit and is equipped with two-arm levers pivotally mounted on the monorail, and axles rigidly fixed to the pushers. A groove is made on one shoulder of each of the levers. Pushers with axes are placed in the grooves of the two-arm levers with the possibility of movement. On the other shoulder of each of the two shoulders levers there is a movable section of the corresponding copier. The rollers of the clamp nodes mounted on the first carriages interact with the fixed sections of the respective copiers. The rollers of the clamping units mounted on the remaining carriages interact with the movable sections of the respective copiers. 4 ill.

Description

The invention relates to the processing of metals by pressure, in particular, to devices for bending ring parts from strip and profile blanks to an edge, and can be used in machine-building industries.

A known flange-bending machine comprising monorails with curved sections located on a bed, movable carriages supporting each clamping unit, comprising a lever with a pressure block and a lever drive.

A disadvantage of the known machine is its low productivity due to the production of a finished part by two bends.

The prototype adopted a flange-bending machine containing a monorail with curvilinear sections fixedly mounted on the bed, carriages placed inside the monorail with two parallel

opposite closed rows with the possibility of synchronous movement, the carriage drive, the workpiece clamp assembly mounted on each carriage, including rigidly connected shoe and roller, spring-loaded relative to the carriage and mounted with the possibility of reciprocating movement, the workpiece clamp assembly drive containing pushers, associated with the carriage drive by means of eccentric shafts, copiers with movable sections and copiers with fixed sections.

The disadvantages of the known machines include the impossibility of working with continuous material (from the bay) due to the presence of fixed levers of the carriages and manual loading of the machine when bending narrow-band blanks.

The aim of the invention is to expand technological capabilities with one

yourZ

by a temporary increase in productivity due to the bending of long-length narrow-band billets per rib.

The goal is achieved due to the fact that the flange-bending machine is equipped with two-arm levers pivotally mounted on the monorail, one arm of these levers has a gas made of rigidly mounted on the pushers and placed in the grooves of the two-arm levers with the possibility of movement, the blocks on the opposite carriages are mounted coaxially. the movable sections of the respective copiers are placed on the other shoulders of the two-arm levers, the rollers of the clamp nodes located on the first carriages are mounted with the possibility of interaction with the stationary sections of the corresponding copiers, and the rollers of the clamp nodes placed on the other carriages are mounted with the movable sections of the corresponding copiers

In FIG. 1 shows a flanging machine, top view; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 - section BB in Fig 1; in FIG. 4 - view B in FIG. 3

The flange-bending machine consists of a bed 1, a monorail 2, carriages 3 The carriages are connected to the drive by means of gear racks 4, gears 5 and shaft 6. Ruggedly connected blocks 7 and rollers 8 spring-loaded relative to the carriages are mounted on the carriages. Number 9 indicates the first carriage. The rollers 8 interact with the copiers 10 and the rollers of the first carriage interact with the copiers 11.

The copiers 10 contain movable sections 12 located on one shoulder of each of the two shoulders of the levers 13, and the grooves are made on the other shoulders of the levers 13. Axes 15 are mounted in the grooves 14, rigidly fixed to the spring-loaded pushers 16. The pushers are connected by eccentric shafts 17, gear wheels 18 and 19 with a drive shaft 6.

Position 20 denotes the feed roller, position 21 denotes the discharge roller, and position 22 denotes the workpiece.

The machine operates as follows.

The billet 22 (or from the bay) is fed by the roller table 20 to the Loading position and stopped. Next, the machine drive is turned on (not shown in the drawings) and the torque through the shaft b, the gears 5 and the racks 4 is transmitted to the carriages 3, and through the gears 18 and 19 to the eccentric shafts 17.

When combining the vertical axis of the first carriage 9 with the free end of the workpiece, the rollers 8 go to an overestimated

plot copier 11 and pads 7 capture the free end of the workpiece, filed in the area of the machine. The preform is transported to the machine zone, while the copier 11 holds the pads 7 during transportation of the entire preform to the machine zone.

After all the working carriages are aligned in the horizontal section of the monorail 2, from the cam 17, the pusher 16,

axis 15, the two-arm lever 13 is rotated and the workpiece 22 is clamped by the pads 7 of the working carriages 3 along the entire length.

The billet 22 is flexible by moving the carriages 9 and 3 along the curved portion of the monorail 2,

After the first carriage has been moved 180 °, the rollers 8 fall on the lower sections of the copiers 11, the pads 7 are squeezed and the workpiece is released.

Likewise, the blocks of subsequent carriages are squeezed from the copier 10. This happens until the part is completely released.

The finished part is removed from the working area of the machine along the discharge roller 21 and the machine is ready for the next bending cycle.

Using the proposed machine allows automated bending of lengthy rolled products, work with continuous material (from the bay), at the same time allows mechanizing the loading of the machine with narrow-band billets, and thereby increase the productivity of the machine by 15-20%.

Claims (1)

SUMMARY OF THE INVENTION A flange bending machine comprising a monorail with curvilinear sections fixedly mounted on a bed, carriages located inside the monorail with two parallel opposite closed rows with the possibility of synchronous movement, carriage drive, a workpiece clamp assembly mounted on each carriage, including rigidly connected block and roller, spring-loaded relative to the carriage and mounted with the possibility of reciprocating movement, the drive of the workpiece clamping units, comprising pushers associated with the carriage drive by means of eccentric shafts, copiers with movable sections, characterized in that, for the purpose of expanding technological capabilities while increasing productivity by bending long, narrow-band blanks to the rib, it is equipped with two-arm levers pivotally mounted on the monorail, one shoulder each of these levers has a groove, with axles rigidly mounted on the pushers and placed in the grooves of the two-arm levers with the possibility of movement, the pads on the opposite carriages are installed coaxially, the movable sections of the corresponding copiers are placed on the other shoulders of the two-arm levers, the rollers of the clamp nodes placed on the first carriages, they are mounted with the possibility of interaction with the fixed sections of the respective copiers, and the rollers of the clamping units placed on the other carriages, with the movable sections, respectively constituents copiers. N V Shg Fie, 2 8 Figz Zidd.