SU1547943A1 - Hydraulic press unit - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular, to devices for die forging. The purpose of the invention is to increase productivity and reduce energy costs. The hydropress assembly contains power and auxiliary units, a stamp, sector inserts, a backing ring, a sector liner separation mechanism, a telescopic mandrel, and a device for removing liners. The stamp is supplied with an additional package with upper and lower traverses. Movable tables are placed on the lower traverse of the main and upper traverse of the additional packages. Initially, the workpiece is stamped into the power unit, which is then passed to the auxiliary unit. Stamping with segment inserts placed on the mandrel. Then the inserts are removed from the stamping and the mandrel is removed from it. 2 hp f-ly, 13 ill.

Description

The invention relates to mechanical engineering, in particular, to press equipment for manufacturing rotors of turbo-drills by extruding from a solid-liquid metal or casting metals with crystallization under pressure.

The purpose of the invention is to increase productivity and reduce energy costs.

FIG. 1 shows the aggregate, general view; in fig. 2 - the same, top view; in fig. 3 is a top view of a device for removing sector liners from rotor blank blades; in fig. 4 shows section A-A in FIG. 3; on ; FIG. 5 - telescopic mandrel, about-.

general view; in fig. 6 - package agretag. Original position; in fig. 7 - the same, the final position; in fig. 8 - auxiliary package, initial position; in fig. 9 - procurement of the rotor with sector inserts on the mandrel of the additional package; in fig. 10 and 11, node I in FIG. 9, before and after the separation of the liner from the blade, respectively; in fig. 12 -: device for removal of sector liners from rotor blank blades, starting position; in fig. 13 - the same, the final position.

The hydropress assembly consists of fixed crossbars 1-3, mounted by columns 4 and 5, movable in vertical /

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the traverse direction is traverse 6–11, tables 12 and 13, which are movable in horizontal direction. Traverse 6 is connected to cylinders 14 and 15 fixed on crossbar 2, traverse 7 is connected to cylinders 16 and 17; traverse 8 - with cylinders 18 and 19; traverse 9 - with cylinders 20 and 21; traverse 10-c zindr 22; traverse 11 - with cylinders 23 and 24. Tables 12 and 13 are equipped with cylinders mounted in tables (not shown). Traverses 6-9 will form a power pack, and traverses 10 and 11 will form an additional package. Table 12 is set on the traverse 6 of the power pack, and table 13 is on the traverse 10 of the auxiliary packet. A stamp formed on the hydraulic press aggregate is formed by the lower 25 and upper 26 semi-matrixes, punches 27-29, the backing ring 30 and sector inserts 31. The lower semi-matrix 25 is fixed on the table 12, the upper semi-matrix 26 is on the traverse 7; the lower punch 27 is fixed on the crossbar 1, the upper outer punch 28 is on the cross bar 8, the upper inner punch 29 is on the cross bar 9. The backing ring 30 and the sector liners 31 are installed in the lower semi-matrix 25, the Hydropress unit is equipped with a mechanism for separating the segment liners 31 from the workpiece blades the rotor formed by the stop 32 and the grip 33 connected to the cylinder 34. The stop 32 is mounted on the crossbar 1, the catch 33 is on the rod of the cylinder 34, and the cylinder is on the crossbar 2. In addition, the hydraulic press unit is equipped with a device 35 to remove sector liners 31 with rotor blank blades. The device consists of a housing 36 (FIG. 4) in which the cavities of the cylinders 37 are made, pistons 38 connected to the sliders 39 are inserted into these cavities. Levers 40 are mounted on the sliders 39. Holes 41 and 42 are made in the housing 36 for supplying oil in the cavity of the cylinder 37 (in Fig. 3 and 4 only two holes are shown). The fixture is mounted on traverse 11. The fixture includes a cylinder 43 mounted on the crossbar 3. The hydraulic press unit is equipped with a telescopic mandrel 44 consisting of an outer 45, and an inner 46 (figure 5) housing; outside, 47 and inside

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48 pistons. Holes 49 and 50 are provided in the housing 45 for supplying oil, and in the housing 46 there are holes 51 and 52. The tip 53 and the lock nut 54 are screwed onto the housing 46. The lever 55 is fixed to the tip. The pressure washer 56 is fixed to the piston 47, and the piston 48 is a tapered bushing 57. A telescopic mandrel 44 is fixed on the table 13.

Position 58 denotes the source / blank, position 59 - stamped blank with a burr 60.

The unit works as follows.

The heated billet 58 is placed in the die of the power pack, the punches 28 and 29 are lowered, the plug 28 only until the hole in the half-matrix 26 is closed, and the plug 29 is at the lower position (Fig. 7). When the punch 29 reaches the lower position, the punch 28 is lowered down, with which the workpiece 59 is finally formed, and a cut 60 is cut from it (Fig. 7). Pressure on the metal creates 20 kgf / mmg or more. After receiving the workpiece 59, the rotor lifts the punch 29, then the punch 28, the semi-matrix 26, the semi-matrix 25 with the workpiece 59, releasing the latter from the punch 27. Thereafter, the table 12 is moved to the right with the semi-matrix 25 and the workpiece 59, and the table 13 is moved to the left, aligning the axis of the mandrel 44 with the axis of the workpiece 59 (Fig. 8). The tip 60 is removed from the end of the punch 27, the yoke 10 with the mandrel-44 is lowered, the tip of the mandrel 53 of the mandrel 44 is lowered into the opening of the blank 59. Then the fluid pressure is fed into the aperture 51 of the inner casing 46 of the mandrel 44, which pushes the piston 48 down and rotates the levers 55, the lower ends of which protrude beyond the tip 53 (FIG. 5) under the lining ring 30. After that, lift the yoke 10 and remove the workpiece 59 together with the segment liners 31 and the lining ring 30 from the half-matrix 25, after which the table 12 is returned to the left Exodus position, and the workpiece 59 is lowered onto the stop 32. Then pbdaktt oil in the hole 52 of the housing 46 of the mandrel 44 (Fig. 5), which raise the piston 48 and the conical sleeve 57 rotate the levers 55, inserting their ends in the grooves of the tip 53, after

which the mandrel 44 together with the cross-bar 10 raise up, i.e. the blank 59 is released from the mandrel 44. The table 13 is retracted to the right, after which the gripper is lowered down (Fig. 9-11), which separates the segment liners 31 from the rotor blank blades. Peel off by 1-2 mm. Then lift up the grip 33, move to the left

table 13 with a mandrel 44, lower the yoke 10, push the ends of the levers 55 apart, then lift the yoke 10 together with the mandrel 44 and the workpiece 59. The table 13 move to the right, transfer the workpiece 59 over the tool 35. Lower the yoke 10 and the workpiece 59 with the ring 30 is placed in the fixture. The mandrel 44 is then removed from the blank 59 and retracted to the left, fluid pressure is fed into the holes 42 of the tool 35 (Fig. 4) and the slides 39 are brought to the center (Fig. 12). Then the yoke 11 is lowered, the protrusions of the sliders 39 are driven into the hollows of the segment liners 31, then the levers 40 are raised by the cylinder 43 and their projections are inserted into the hollows of the liners 31. Pressure is supplied 1547943

bar 44 with inserts 31 and ring 30, move table 13 to the left, and table J2 to the right, aligning the axes of the mandrel 44 and the semi-mattresses 25, then lower the mandrel 44 down, insert the inserts 31 and the ring 30 into the semi-matrix 25. Feed the fluid pressure into the hole 50 mandrels 44, raise the washer 56, -stage the arms t 55, lift the mandrel, move the table 12 to the left, lower the yoke 6 with the half matrix 25, lower the walls of the stamp with grease, lower the yoke 7 with the half matrix 26, put a new blank 58 into the stamp and spend the next cycle of obtaining the rotor blank.

Claims (3)

1. A hydraulic press unit comprising a bag with a stamp placed on horizontally movable tables, as well as upper and lower traverses, characterized in that, in order to increase productivity and reduce energy costs, it is equipped with an additional bag with upper and lower traverses. The fluid in the holes 41 of the adapter 6 is placed on the lower cross-section 35 and the slide blocks 39 are spread out to the sides, which are side-mounted the inserts 31, freeing the blank 59 from them (Fig. 13). Then, the workpiece 59 is removed from the tool, the sliders 39 are reduced to the center, the tip 52 of the mandrel 44 is inserted into the center of the sliders 39, the levers 55 (Fig. 5) are moved apart to the sides under the ring 30, the fluid pressure is fed into the hole 49, the washer 56 is lowered the ends of the inserts 31, compressing the latter along the ends between the washer 56 and the ring 30. After that, lift the yoke 31, lower the cylinder rod 43, freeing the hollows of the inserts 31 from the sliders 39 and levers 40. The sliders 39 are separated to the side, the op35 is raised 40 45 All main and upper traverse of the additional packages, and the stamp is provided with sector liners and a backing ring. 2. The unit according to claim 2, in which it is provided with a mechanism for separating sector liners from the part placed between the main and additional packages, as well as a device for separating the liners from the part fixed on the lower cross bar of the additional package. 3. The unit according to claim 1, characterized in that it is equipped with a telescopic mandrel mounted on the table of an additional package. All main and upper traverse of the additional packages, and the stamp is provided with sector liners and a backing ring. 2. The unit according to claim 2, in which it is provided with a mechanism for separating sector liners from the part placed between the main and additional packages, as well as a device for separating the liners from the part fixed on the lower cross bar of the additional package. 3. The unit according to claim 1, characterized in that it is equipped with a telescopic mandrel mounted on the table of an additional package. 1 CO d- with f-- -3- w mmi f oON G. LO I CVemi And u Of u ( Editor E. Papp Compiled by V. Veschekov Tehred A. Kravchuk Order 100 Circulation 629 VNIIPI of the State Committee for Inventions and Discoveries at the GKUT USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing plant Patent., Uzhgorod, st. Gagarin, 101 FIG. 13 Proofreader I. Muska Subscription