• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. Apparatus for obtaining through-bores in metal blocks, particularly steel blocks presenting a circular cross section, comprising a block-holding die matching the outer shape of the metal block, which presents at its bottom a movable counter-punch mounted retractable so as to leave open an aperture in the die, arranged co-axially to the bore to be obtained in the metal block, and which is associated to a boring punch co-axial to the said counter-punch and forceable into the metal block carried by the block-holding die by means of an hydraulic press cylinder, said boring punch carrying, at its forward free end directed against the block-holding die, a frontal flat-conical piercing head, characterized by the fact that the boring punch (26) is rotatable around its longitudinal axis, and that the piercing head (39) is arranged freely rotatable on the boring punch (26) around a rotational axis slightly inclined with respect to the longitudinal axis of the boring punch, and it bears with a rear sliding surface (139) inclined with respect to the longitudinal axis of the boring punch (29) against a correspondingly inclined bearing surface (138) of the boring punch (26).
    公开号:SU824881A3
    申请号:SU782655252
    申请日:1978-08-30
    公开日:1981-04-23
    发明作者:Поджо Себастьяно；Кверчини Пьетро；Бьянкеттин Этторе
    申请人:Веррина С.П.А (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of metals by pressure and may be used in the design of machines for the piercing of through decoctions, in particular, in steel cylindrical billets. Devices for forming metal blanks are known, which comprise a blank holder mounted in a bed, a sleep pitch with a tapered working end mounted in a punch holder with relative rotation and having an axis angled to the longitudinal axis of the punch holder, axial displacement and rotation drives of the punch holding Guy bodies. However, the known devices do not allow them to pierce through holes. The purpose of the invention is to provide the possibility of firmware through holes. The goal is achieved by the fact that in the device containing the holder of the workpiece mounted in the frame, is installed in the punch holder with relative rotation and having a tapered working end — a punch, the longitudinal axis of which is angled to the longitudinal axis of the punch holder, axial displacement and rotation drives the punch holder, the punch and the punch holder are made with flat ends in contact with each other and perpendicular to the longitudinal axis of the punch, and the projected area of the punch , on the plane perpendicular to the longitudinal axis of the punch holder, is larger than the corresponding area. projection punch holder. . The angle of inclination of the longitudinal axis of the punch to the longitudinal axis of the punch holder is 1-10. The angle of the cone of the working end of the punch is 165-175. The workpiece holder is mounted with the possibility of sliding relative to the bed in the direction of its longitudinal axis and is made in the form of a pipe closed from the rear end. The blank holder is made of a composite of two halves conjugated in the plane of its longitudinal axis.
    The bed is made in the form of a pipe consisting of two articulated halves connected in the plane, the longitudinal axis of the holder, and provided with a locking mechanism.
    The bearing surface of the holder and the response surface of the frame are made of a prismatic shape.
    The axial movement of the punch holder is made in the form of a hydraulic cylinder with a piston movable in the axial direction and fixed from rotation around the axis, and the punch holder is mounted on this piston.
    The punch holder is rotatably connected to the piston, a. When the rotation of the punch holder is made in the form of a motor mounted on a piston.
    The device is equipped with a vibrator-. mi located on the piston.
    The punch is made with channels for circulation of coolant, and at least two longitudinal channels for supplying and discharging this liquid are made in the punch holder.
    FIG. 1 shows the proposed device, a general view; FIG. 2 shows a section A-A in FIG. one; in fig. 3 is a longitudinal vertical section of the holder of the workpiece, the bed and the supports at the time of the firmware operation; in fig. 4 is a partial longitudinal section of the punch assembly with its drives; in fig. 5 is a longitudinal section of the punch and the interface (of the first end of the punch holder).
    Workpiece 1, which is a round metal block, in particular a steel ingot, having a cylindrical shape, in which a cylindrical coaxial through hole is to be made, is placed in the corresponding cylindrical cavity of a tubular blank holder, which consists of two conjugate halves 2 and 3 (Fig. 2).
    The halves 2 and 3 of the blank holder 1 are mounted slidably in the roller guides 4 of the bed consisting of a fixed lower part 5 and a movable upper part 6 interconnected by means of a hinge 7. The mating surfaces 8 of the halves 2 and 3 of the holder and parts 5 and b the bed is made prismatic, which eliminates the possibility of rotation of the holder around its longitudinal axis.
    On the stationary part 5 of the frame is pivotally mounted a hydraulic cylinder 9, the piston rod 10 of which is also pivotally connected to the upper part 6 of the frame (or vice versa). In addition, there is a locking mechanism, made in the form of several located along the bed
    castle sites, each of which consists of a hydraulic cylinder 11, fixed by means of a hinge 12 on the brackets 13 of the lower part 5 of the frame. The piston rod 14 of the cylinder 11 is located between the brackets 15 of the upper part 6 of the bed and has a conical head 16 at the end, which interacts with a slot 17 of the corresponding shape, made in the upper part of the brackets 1 facing this piston 1 A cylinder 18 is attached to the lower part of the cylinder 11, connected pivotally with the lower part of the 5 bed. Parts 5 and b of the frame have guide and locking pins 19 and corresponding IMT holes 20.
    The upper half of the 2 holder can be made with a longitudinal tide 21, having, for example T-shaped section, and located in the groove 22 of the corresponding form made in the upper part of the STANIN) 1.
    A rigidly fixed support 24, having a cylindrical protruding part 25 facing forward, whose axis coincides with the axis of the holder of the workpiece 1 and enters into the holder cavity, closes it from the rear side and contacts with the workpiece, adjoins the rear end face 23 of the frame.
    The rear end of the halves 2 and 3 of the toothed holder, at least part of the surface, interacts with the possibility of sliding with the corresponding annular guide and centering groove 26 in the support 24.
    In the support 24 there is a hydraulic cylinder 27 fixed by a cover 28. The piston 29 of this cylinder has a cylindrical piston 30, the outer diameter of which is practical. chesky equal to the internal diameter of the billet hole 1. The rod 30 passes through the open chamber 31 of the support 24 and through the through hole 32 in the cylindrical protrusion 25 of the support 24.
    On the front end of the halves 2 and 3 of the holder, there is a punch holder 33, which is provided with a drive for axial movement — a hydraulic cylinder 34, and a rotation drive, for example, a coaxial hydraulic motor 35. The hydraulic cylinder 34 is connected to the support 18 by means of longitudinal rods 36, which are connected to one the sides are connected with the tides 37 on the support 24, and on the other with a flange 38 made with the cylinder 34. The piston 39 of the cylinder 34 is tubular and slidably mounted along the axis along the tubular lug 40 of the lid 51, closing the cylinder 34. Por:; Sp 39 on
    the protruding end of the cylinder 34 carries the hollow nozzle 40, inside which the punch holder 33 is rotatably fixed and the rotational drive 35 of the punch holder is located. The nozzle 40 of the piston 39 can be equipped with vibrators 41.
    The punch holder 33 is located coaxially with the rod 30 and consists of two tubular parts 42 and, 43 coaxially located one inside the other with a gap 44 between them, designed for cooling fluid. The opposite end of the nozzle 40 end of the punch holder 33 is tightly closed with a short cylindrical plug 45 attached to the punch holder 33 by means of a threaded shank 46, screwed into the inner part 42 of the punch holder 33.
    On the plug 45, a punch 47 is mounted for relative rotation, the axis of which is at an angle to the longitudinal axis of the punch holder 33, and the inclination angle can be in the range from
    1 to 10, in the preferred embodiment from 4 to 7 °. Punch 47 is connected
    with the stopper 45 by means of a shank 48 freely mounted in the bearing 49 inside the opening 50 of the stopper 45. The contacting ends 51 of the punch 47 and the stopper 45 are flat and perpendicular to the longitudinal axis of the punch 47. The punch 47 slightly expands towards the working end 48, and the cctM working end made cone-shaped with an angle at the apex of the cone, equal to 165-175, and in the preferred embodiment, 170 °.
    B. plug 45 is provided with channels 49 and 50, which are connected to channels 52 and to the central channel 53 of the punch 47. In plug 45, a channel is also made-54, which passes along its axis and is conjugated with the cavity 55 of the internal part 42 of the punch holder 33.
    The channels 49 and 52 are interconnected by an annular chamber 56, bounded by two annular seals 57 and 58, located between the plug 45 of the platen-holder 33 and the punch .47. Channels prednaz-started for the supply and removal of coolant.
    The device works as follows.
    In the initial position, the upper part of the 6 bed with the upper half
    The 2 holder rotates around the hinge 7 by means of a cylinder 9, opening the holder. The workpiece I. is placed in the lower half of the 3 holder, the upper half of the 2 holder together with the upper part 6 of the frame is lowered by the cylinder 9.
    After this, the cylinders 18 of the locking mechanism rotate the cylinders 11, insert the piston rods 14 last into the gap between the brackets 15. Then the cylinders 11 move the rods 14 downward, the conical heads 16 of the rods 14 are inserted into the slots 17 of the brackets 15 and tightly close the parts 5 and 6 of the frame . When moving the punch holder 33 along its longitudinal axis with the help of the piston 39 of the hydraulic cylinder 34, a hole is pierced in the workpiece 1.
    0 The axial flow of material squeezed by the force of the punch 47 is accompanied by a corresponding axial movement of the halves 2 and 3 of the holder 1 of the workpiece relative to
    5 parts 5 and 6 of the frame, thereby eliminating the friction of the extruded metal on the inner surface of the holder. The rear end of the halves 2 and 3 of the holder extends from the annular - guide groove 26 of the support
    0 24 and slides along the roller guides 4 beds.
    A cylindrical protrusion 25. bearings 24 and the piston 29 held by the hydraulic cylinder 27 in the extreme
    5 position, form a rigid back wall of the holder of the workpiece 1 and perceive the pressure exerted on the workpiece by the punch 47. This pressure developed by hydraU. of the cylinder 27, due to the described connection of the punch 47 with the punch holder 33 and the rotation of the latter, is much less than what is required in the case of rigid attachment of the punch to the punch holder, which only moves progressively. The rotation of the punch holder 33 and the presence inclined to its longitudinal axis of the flat in contact with the ends 51 of the punch holder
    0 33 and luanson 47, connected with the possibility of relative rotation, leads to the orbital oscillations of the punch 47, which rolls with its conical - working end
    5 48 over the bottom of the hole formed in the workpiece 1. Therefore, the punch 48 is in contact with the bottom of the hole of the workpiece 1 only along the radial line or along the forming working
    0 of the conical surface 48 of the punch 47, the concentrating deforming force in these areas and thereby increasing the specific pressures developed by the cylinder 34.
    five
    The vibrations generated by the vibrators 41 facilitate the production of the described operations and eliminate jamming of both the punch 47 inside the bore of the workpiece and the piston 39 inside the hydraulic cylinder.
    0 34.
    At the end of the firmware, when the punch 47 comes to the back end of the halves 2 and 3 of the holder for the workpiece 1, the piston 29 is retracted or pressed.
    the inside of the cylinder 27 is reduced so that the piston 29 is able to move back during the final stage of the firmware when the punch 47 cuts off the disk, which is the bottom of the blind from the version in workpiece 1,
    The cut disc is ejected through the opening 32 and falls into the chamber 31, from which it can be easily removed, for example, through the holes (not shown) in the wall or bottom. When using the proposed device, it is possible to pierce holes in blanks without burrs, i.e. due to plastic deformation of the material, which occurs due to the axial pressure and lateral extrusion of the material in the axial direction around the punch holder 33,
    权利要求:
    Claims (11)
    [1]
    1.Device for machining metal parts,
    containing the workpiece holder mounted in the frame, mounted in the punch holder with the possibility of relative rotation and having a conical working end-punch, the longitudinal axis of which is angled to the longitudinal axis of the punch holder, the axial movement and rotation drives of the punch holder, characterized in that the through-hole flashing capabilities, the punch and the punch holder are made with flat ends, which are in contact with each other and have perpendicular longitudinal axis of the punch a, and the area of the projection of the punch in a plane perpendicular to the longitudinal axis of the punch holder, greater than the area corresponding to the punch holder projections.
    [2]
    2. The device according to claim 1, of t l ica ate with the fact that the angle of inclination of the longitudinal axis of the punch
    to the longitudinal axis of the punch holder is 1-10 °. . .
    [3]
    3. The device according to claim 1, of t l ich, that the cone angle of the working end of the punch is 165-175.
    [4]
    4. The device according to claim 1, characterized in that the blank holder is mounted with the possibility of sliding relative to the bed
    in the direction of its longitudinal axis and is made in the form of a pipe, closed from the back end.
    [5]
    5. The device according to claim 4, characterized in that the blank holder is made of a composite of two
     the longitudinal axis of the half,
    [6]
    6. The device according to any one of claims 5, 5, and 1 is made up of the fact that the bed is made in the form of a pipe consisting of two articulated halves conjugated in the plane, the longitudinal axis of the holder, and provided with a locking mechanism,
    [7]
    7. The device according to claim 6, which is based on the fact that
    0 surface holder and response
    the surface of the bed is made prismatic shape,
    [8]
     8, The device according to claim 1, clause 1. You need to drive
    5 axial movement of the punch holder is made in the form of a hydraulic cylinder with an axially movable axially fixed from rotation around the axis, and the punch holder is mounted on this piston,
    [9]
    9. The device in accordance with claim 8, which is in that the punch holder is coupled to the piston rotatably, and the drive is rotated. neither the punch holder is made in the form of a motor mounted on a piston,
    [10]
    10. The device according to claim 9, of which is equipped with vibrators located on the piston.
    [11]
    11. The device according to clause 10, of the first page. by the fact that the punch is made with channels for the circulation of coolant, and at least two longitudinal channels for supplying and discharging this liquid are made in the punch holder.
      Sources of information taken into account in the examination
    1. Ageev NP, et al. Stamping on a sphere-moving press, L., 1972, p. 4-5, fig. one.
    Hjy I VVXVx / X / J / XS / 4 JX255
    6 30 26 23 2 6 Fig.Z J
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    同族专利:
    公开号 | 公开日
    DE2860420D1|1981-02-26|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2732738A|1956-01-31|Hydraulic press |
    US1374369A|1919-03-29|1921-04-12|Luther D Earl|Tool for piercing billets|
    US1702278A|1928-05-18|1929-02-19|Simons Abraham|Method of making seamless containers|
    GB449420A|1935-03-13|1936-06-26|Stewarts & Lloyds Ltd|Improvements relating to the manufacture of hollow metal articles such as tubes|
    US2250338A|1939-03-21|1941-07-22|Omes Continental Ltd|Manufacture of seamless hollow articles|
    US2299105A|1940-03-18|1942-10-20|Dominion Eng Works Ltd|Method and apparatus for forging billets|
    CH387322A|1961-11-13|1965-01-31|Bodmer Gottfried|Method and device for forming locking heads on rivets|
    DE1652653B1|1967-01-20|1972-05-31|Politechnika Warszawska|Die press|
    US3494161A|1968-01-11|1970-02-10|Alexandr Nikolaevich Silichev|Device for stamping metal blanks|
    DE1752007C2|1968-03-20|1983-04-28|Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover|Method and device for extrusion of tubular workpieces, in particular of flanges with a high tube attachment|
    US3597957A|1968-05-11|1971-08-10|Kobe Steel Ltd|Metal billet piercing press|
    GB1224260A|1969-07-03|1971-03-10|Massey Ltd B & S|Improvements in upsetting or forging machines|
    FR2098385A1|1970-07-14|1972-03-10|Politechnika Warszawska|Press for thin objects - with one oscillating matrix and one which moves axially|
    US3762199A|1972-02-19|1973-10-02|S Yoshikawa|Rivet head forming tool|
    GB1434573A|1973-10-24|1976-05-05|Yoshikawa Iron Works|Riveting machine|DE3604630C2|1986-02-14|1989-03-30|Loehr & Bromkamp Gmbh, 6050 Offenbach, De|
    DE19803366A1|1998-01-29|1999-08-05|Bosch Gmbh Robert|Housing block|
    RO127383A2|2010-09-03|2012-05-30|Mb Telecom Ltd S.R.L.|Method and system for manufacturing hollow and profiled bodies|
    CN103909192B|2014-04-14|2016-06-22|上海电机学院|Multi-ram forging hydraulic extrusion press|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT1275477A|IT1082622B|1977-08-31|1977-08-31|METHOD AND DEVICE FOR DRILLING THROUGH HOLES IN METAL BLOCKS|
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