SU914139A1 - Press for forming tube-ends to shape - Google Patents

Description

The invention relates to the processing of metals by pressure and can be used in equipment for flanging the ends of pipes "

Known press containing the traverse mounted on having for fixing transverse grooves on the longitudinal rods of the bed, mounted on the traverse power cylinders, carrying tools, as well as pivoting stops [1).

The disadvantage of the press is the complexity of the design, since the chain is mounted on the swivel blocks and requires a tensioning device.

The purpose of the invention is to simplify the design of the press.

This goal is achieved by the fact that in the press for shaping the ends of the pipes, containing traverses, mounted on the longitudinal bars of the bed and fixed in the transverse grooves made on the rods, mounted on the traverse SI2

New cylinders, carrying tools, as well as pivot stops, pivot stops are made in the form of double-arm levers, spring-loaded on one side, fixedly mounted on the rods of the power cylinders and the other arms entering the transverse grooves of the rods.

FIG. 1 shows a structural diagram of a press, the power part of the frame of which is placed in a horizontal plane, a plan view; in fig. 2 - a block of pivot stops of the press; in fig. 3 “section A-A in FIG. 1.

The press for shaping the ends of the pipes contains a frame with base 1 on which longitudinal rods 3 and 4 with transverse grooves in the form of annular grooves 5 are fixed to 2. On rods 3 and 4, the crosshead 6 and 7 are mounted with the possibility of translational movement ,

914139

for example, in the form of hydraulic cylinders 8 and 9 of double-sided operation, on the sliding parts 10 and 11 of which form-changing tools are mounted, for example, crimping punches 12 and 13. On the sliding part of each traverse, a block 14 of rotating stops is fixed. The block contains spring-loaded lugs 17 and 18 mounted with the possibility of rotation on the axes 15 and 16. Hard lugs 19 and 20 limit the rotation of the lugs 17 and 18,

The stops 17 and 18 using the removable pins 21 and 22 can be held in the position retracted from the stops 19 and 20. If pins 21 and 22 are removed; The stops 17 and 18 go upwards, [frames 19 and 20. In FIG. 2 stop 17 is in the unlocked position (pin 21 is removed from it).

The pipe 22 is installed on the stand and include a direct stroke of the hydraulic cylinders 8 and 9. At the same time, the working fluid under pressure is fed into their piston cavities and the ends of the pipe are processed by punches .12 and 13 ”, for example, flanging. Upon reaching the specified degree of distribution of the pipe ends, the hydraulic cylinders 8 and 9 are reversed, the working fluid is fed under pressure into their rod cavities, as a result of which the punches are retracted to the initial position, and the flanged pipe is removed.

The adjustment of the press to the processing of pipes of a given length is made by shifting the cross-arms along the rods, which is carried out as follows. Clamps 23 are removed. For shifting the crossheads 6, pin 21 is removed to the left, i.e. unlock the pivot stop 17. Produce alternate inclusion of the hydraulic cylinder 8 on the forward and reverse stroke. During the reverse course, when the sliding part · 10 moves to the left, the swivel stop 17 "falling into the recesses 4 and 5 freely exits from them, turning on the axis 15 and stretching the spring associated with it. With

the direct movement of the sliding part 10, the stop 1.7 falls into one of the recesses and abuts against its wall, then the sliding part 10 stops,

5 and since the working fluid under pressure enters the piston cavity of the hydraulic cylinder 8, its body, together with the crosshead 6, moves to the left. Fulfilling the required number

10 double passages, traverse 6 are retracted to the left in the desired position and fit with hose clamps. Its movement to the right is carried out with fixed stop 17 and unlocked stop 18. When

15, this traverse moves to the right when the working fluid is supplied under pressure into the hydraulic cylinder rod of the rod 8. The traverse 7 is moved in the same way with the help of the rotating stops of the block 14 mounted on it.

The economic effect from the introduction of the invention is achieved by reducing the cost of manufacturing and servicing the press.

Claims (1)

Claim A press for shaping the ends of 30 pipes, containing the arms, mounted on the longitudinal bars of the bed and fixed in transverse cavities made on the bars, mounted on the cross-arms power cylinders, carrying tools, and ³⁵ rotating stops, distinguishing me from the fact that in order to simplify the design of the press, the pivot stops are made in the form of two shoulders, spring-loaded ⁴⁰ gov rods fixedly mounted on the rods of the power cylinders and entering with the other arm into transverse grooves of the rods.