Device for die change press
(57) Abstract:The invention relates to forging and pressing equipment. Device for die change press contains a movable beam 3, is arranged to mate with punch plate for stamping. Punch plate mates with a table press 2 and has means for lifting and moving in the form of a stepped bushing 4. Stepped sleeves are at least two on each side of the press table and equipped posted on each of them bearing 5. The bearings are installed movable beams with the guide slots in which are placed the bearings stepped bushings. Punch plate and movable beams made with profiles on the mating surfaces forming the installation of the split connection, and provided with fastening devices for uniting them in the platform. Punch plate and the table is made from the original on their mating surfaces of the profiles 7, 8 forming the installation relative to the press slide detachable connections. The degree of each sleeve, bearing bearing, made with eccentricity relative to the axis of the sleeve. The eccentricity is selected from the conditions of establishment loading is to reduce the time for replacement of the stamp. 1 C.p. f-crystals, 4 Il. The invention relates to forging and pressing equipment.A device for die change press containing movable beams made with the possibility of interfacing with punch plate for installation of a stamp that has the capability of interfacing with a table of the press, and means for lifting and moving .The disadvantages. It is impossible to clearly establish the track of the moving die set. There is no mechanism for fast fixing die set on the frame of the press. In the mechanism for lifting and moving a used pair of sliding friction, which in the operating condition of the device (the presence of large amounts of iron dust and scale) leads to rapid deterioration and loss of efficiency.Task. The reduction of time for replacement of the stamp due to a sharp reduction of time for the installation of the moving elements of the device between itself and the press slide.The problem is solved by a device for die change press containing movable beams made with the possibility of interfacing with punch plate for installation of the stamp that has the ability to sopryazheniya with a table of the press and means of lifting and moving the ore, two on each side of the press table and equipped posted on each bearing, have movable beams, provided with guide slots, in which are placed the above-mentioned speed bearings bushings, punch plate and movable beams made with profiles on the mating surfaces forming the installation of the split connection, and provided with fastening devices for uniting them in the platform, punch plate and the table is made from the original on their mating surfaces of the profile forming the installation relative to the press slide detachable connections, and the level of each sleeve, bearing bearing, made with eccentricity relative to the axis of the sleeve, selected from the conditions of establishment intensive efforts on the punch plate to combine in a single unit with a table of the press, while installed on each side of the table bushing provided with a rack and pinion.Appropriate installation of detachable connection is formed by profiles punch plate and movable beams, to perform cone.Installation detachable connections between the elements of the device and the table of the press, as well as a well-defined track moving die set allows semi-automatically put the stamp consider the AET reliability of the device.In Fig.1 shows a device for replacement of the stamp;
in Fig.2 is an eccentric bushing rack and pinion;
in Fig.3 - stamp with the top and bottom plate and technological struts;
in Fig.4, the lower half of the stamp with the installation of a demountable connection.The device is intended to replace and placement in space of the press die set in the working position, the punch plate 1 which has the possibility of merging with table 2 of the press in a single unit. The device comprises a movable beam 3, is arranged to mate with punch plate 1, and means for lifting and moving. Means of lifting and moving is made in the form of stepped bushings 4 (Fig.2) at least two on each side of the table 2 is press-fitted along the axis of feed of the workpieces in the working area of the press. Step bushings provided with bearings 5, which are beams 3, which in the past made the guide grooves 6 C-shaped. Beams 3 and punch plate 1 from the mating surfaces provided with profiles 7, 8; forming at imposing installation of detachable connection, for example conical. To connect plates 1 and beam 3 in the platform, in addition to detachable connections made castles 9 is Stanovoy plate 1, bearing the stamp relative to the press slide is provided for detachable mounting connection: for example, in table 2 is cylindrical niche in which you installed the plug 10, and from the punch plate 1 is made of the response of NIS 11. Uniting plate 1 and table 2 in a single unit, in addition to the installation plug connectors, see item 10, 11, is performed with the multi-function sleeves 4. The degree of each bushing is provided with a bearing 5 and is made with eccentricity e relative to the axis of the sleeve 4, while on each side of the table bushing is equipped with rack and pinion: gear 12 and the toothed rack 13 with a screw mechanism 14 to bring the transmission into action. The degree of each sleeve 4, carrier bearing 5, is made with the eccentricity "e" (Fig.4) relative to the axis of the sleeve is selected from the conditions of establishment intensive efforts on the punch plate 1 to merge it into a single unit with table 2 of the press. For this eccentricity should be equal to the sum of the gap between the bearing 5 and the guide groove 6 plus 80-90% of half the distance between the planes of the table and stove in the transport position, i.e., some not reaching the "dead spots" sleeve, running, in this case, the function of a Cam clamp.Delivered to the device die set is moved into the working area of the press beams 3. First beams forward. To do this, rotate the screw mechanism 14, which moves the rail 13. The toothed rack rotates the gear wheel 12 and, therefore, rotates the sleeve 4, the bearings 5 which are mounted beams 3. Due to the fact that the bearings 5 with respect to the axis of the sleeves are made with eccentricity "e" beams are lifted above the table 2 and the 10 key (if on the beams 3 is a plate 1 with the stamp, then opens detachable connection with table 2). Then manually bearings 5 beam 3 roll out of the working zone of the press, remove the exhaust die set and instead installing a new one. Installation plate 1 on beams 3 occurs under the action of gravity along the longitudinal and transverse detachable connections, such as conical. The plate 1 is fixed relative to the beams 3 locks 9. Then manually bearings 5 platform (consists of beams 3 and plate 1) ukatyvajut in the working area of the press. The screw mechanism is moved (plug connection) on the table 2. Upon further rotation of the sleeve of her degree, as the Cam clamp load plate 1, combines it into a single unit with table 2. The clamp plate is near dead center of the eccentric degree of the sleeve. Setting the plate 1 on table 2 of the press, the press slide down, fix the upper punch plate on the slide. Then the slider lift, clean technology 15 hours, at which it was exhibited relatively lower half, and the stamp is ready for use.To replace stamp upper half of its extreme bottom position is mounted on the punch plate 1 by means of a mounting racks 15. Prepared in this way stamp set is stored in the warehouse. Another die set, previously prepared in a similar manner, take stock and set on the device instead of the old one.Sources of information
1. Auth. St. 1493374, class B 21 J 13/02, 1989. 1. Device for die change press containing movable beams made with the possibility of interfacing with punch plate for installation of a stamp that has the capability of interfacing with a table of the press, and means for lifting and moving, characterized in that the means for lifting and moving is made in the form of stepped bushings, raspolnela, have movable beams, provided with guide slots, in which are placed the above-mentioned speed bearings bushings, punch plate and movable beams made with profiles on the mating surfaces forming the installation of the split connection, and provided with fastening devices for uniting them in the platform, punch plate and the table is made from the original on their mating surfaces of the profile forming the installation relative to the press slide detachable connections, and the level of each sleeve, bearing bearing, made with eccentricity relative to the axis of the sleeve, selected from the conditions of establishment intensive efforts on the punch plate to combine it into a single unit with a table of the press, while installed on each side of the table bushing provided with a rack and pinion.2. The device under item 1, characterized in that the installation of demountable connection formed by the profiles punch plate and movable beams, is made conical.
FIELD: metal working.
SUBSTANCE: hard alloy matrix has casing, bushing pressed in the case and hard alloy insertion. Bushing has multifaced hole. Hard alloy insertion is composed by several sections made in form of trapezoidal-section prisms which have cut angles at their non-working edges. Number of sections corresponds to number of faces of item to be headed. Cuts of angles are made symmetrically to faces of working edge. Slits are made in several places of multifaced hole bushing at the ponts where faces cross each other.
EFFECT: improved resistance of matrix; simplified assembly.
3 cl, 1 dwg
FIELD: forging and forming processes and equipment, namely manufacture of elongated forgings with thickened portions and lateral branches.
SUBSTANCE: die set includes deforming punch, die with vertical parting, struts in the form of truncated pyramids having wedge-shaped slopes for mounting die; units for securing struts to supporting plate. Die is placed in struts with possibility of motion relative to them. Struts have double-sided mutually opposite slopes. Elastic member is placed under die. Maximum compression value of said elastic member by means of effort corresponding to effort of clamping die halves in struts is equal to value of descending die at forging process.
EFFECT: enhanced reliability and rigidity of die set.
2 cl, 1 dwg, 1 ex
FIELD: plastic working of metals, possibly operations for finish working of forgings of double-end box nut wrenches.
SUBSTANCE: die set includes upper and lower plates with guiding columns, punch for punching operation mounted on upper plate, stripper, lower die for punching, half-open trimming lower die and trimming punch. Trimming lower die is mounted on upper plate; it has cutting edge and cavity arranged behind collar of cutting edge and designed for freely placing forging of nut wrench. Trimming punch is mounted on lower plate and it has embracing supporting surface for fixing forging at trimming and straightening operations.
EFFECT: enhanced quality of forging.
9 dwg, 1 ex
FIELD: plastic working of metals with use of intensive plastic deformation, production of nano-crystalline materials with improved mechanical properties.
SUBSTANCE: die set includes band in which cone insert having several parts is pressed; lower support; inlet and outlet ducts; ram. According to first variant of invention contours of parts of cone insert are restricted by means of two mutually normal planes and cone surface portion cut by said planes. Crossing line of said planes does not coincide with symmetry axis of cone surface. Inlet duct is formed by faces of cone insert parts arranged normally one relative to other and mutually joined; walls of said duct are in the form of portions of said planes. According to second variant of invention contours of cone insert parts are restricted by radius surface, by two mutually crossing planes and portion of cone surface cut by said planes. Crossing planes are mutually normal or they are inclined one relative to other by angle 120°. Axis of radius surface coincides with crossing line of said planes. Faces of cone insert parts are mutually joined; inlet duct is formed by their radius surfaces and outlet duct is formed by radius grooves.
EFFECT: lowered number of parts, reduced consumption of material for making cone insert.
4 cl, 10 dwg
FIELD: plastic working of meals, possibly manufacture of hollow parts such as sleeves, tubes, bushes by cold pressing out.
SUBSTANCE: method comprises steps of plastic deforming of blank at translation and rotation of deforming tool; realizing said motions of tool from separate drive units; setting speed of translation less than that of rotation and selecting relation of said speed values less than 2.5.
EFFECT: enhanced manufacturing possibilities of method.
2 cl, 2 dwg, 2 ex
FIELD: plastic working of metals, namely processes for pressing out shapes of aluminum base alloys, constructions of pressing out tools.
SUBSTANCE: method comprises steps of making blank, heating, hot pressing out of blank through die, heat treatment of shape. At pressing out blank is subjected in upper p[art of die to additional shearing deformations due to twisting it by angle in range 40 - 50° relative to axis of die. Die includes deforming cone, working rectangular collar and outlet zone. Deforming cone has two helical protrusions in the form of trapezium. Upper base of said trapezium is equal to length of rectangle of working collar; its lower base consists 1.5 - 2 of parts of said length value. Rotation angle of upper cross section of protrusion relative to its lower cross section is in range 40 - 50° relative to axis of die. In longitudinal cross section said protrusions are in the form of parabola.
EFFECT: possibility for making rectangular aluminum alloy shapes with enhanced mechanical characteristics and low anisotropy of their properties, improved design of die.
2 cl, 4 dwg, 1 ex, 1 tbl
FIELD: plastic working of metals, possibly forging ingots and billets in hydraulic forging presses.
SUBSTANCE: apparatus includes two holders of upper and lower strikers having inclined surfaces. Said holders are kinematically coupled with two holders of lateral strikers having inclined surfaces corresponding to those of holders of upper and lower strikers. Four strikers are secured to respective holders by means of clamps and tightening studs. Each of upper and lower strikers has two working portions mutually divided by cutout. Each of lateral strikers has one working portion entering cutouts of upper and lower strikers. At least one adjusting plate is placed between holder of lower striker and lower striker. Lower striker is secured to its holder by means of two Г-shaped clamps. Inclined surfaces of said clamps are forced to inclined surfaces of holder of lower striker; riffled surfaces of said clamps are forced to two friction plates arranged on lateral surfaces of lower striker. Pins passing through openings of adjustment plates and entering openings of holder of lower striker are mounted in lower striker.
EFFECT: lowered cost of making tool, reduced time period for readjustment of it.
2 cl, 5 dwg
FIELD: plastic working of metal, possibly in forging shops of metallurgical and machine engineering plants for making wheels of automobiles and similar articles.
SUBSTANCE: tool includes die, punch, knocking out member with shaped portion, unit for stepped regulation of bottom thickness and height of cup. Said unit is in the form of apparatuses for changing length of punch and depth of die. In upper part of punch female type yoke with through stepped opening is mounted. In upper part of die there is seat whose diameter dimension corresponds to outer diameter of yoke. Depth of die is changed by means of apparatus in the form of flat ring arranged over shaped portion of knocking out member. Apparatus for changing length of punch is in the form of flat round gasket arranged inside yoke over punch. Punch has in its upper portion large-diameter step corresponding to diameter of large step of yoke opening.
EFFECT: possibility for producing by means of one tool semi-finished products of wheels with different combinations of width and thickness values.
3 cl, 3 dwg
FIELD: metallurgy; metal plastic working.
SUBSTANCE: invention can be used in form forging shops of metallurgical and machine-building plant in manufacture of vehicle wheels and like articles. Proposed tool contains die and punch holder with punch and knock-out with shaped part movable relative to die. Punch is enclosed by replaceable round holder with support flat and support surface. Die is provided with socket in upper part whose diameter corresponds to outer diameter of holder, and with support flat. Holder is installed for longitudinal displacement and engagement by its support flat and support surface with support flat of die and with punch holder, respectively. Shaped part of knock-out is made replaceable to provide possibility of making wheels of different type-sizes using one tool.
EFFECT: enlarged operating capabilities.
2 cl, 2 dwg
FIELD: plastic metal working with use of intensive plastic deformation, namely manufacture of nano-crystalline materials with improved degree of mechanical properties.
SUBSTANCE: die set includes slider and plate restricting inlet duct; stationary stop closing inlet duct and restricting together with plate outlet duct; ram and member for knocking out blank. Said member is joined with motion drive unit and it is mounted with possibility of introducing into additional through duct formed in slider. According to first variant of invention at initial position of slider its through duct is arranged in front of outlet duct. Slider may be shifter before starting pressing process by value exceeding size of through duct. According to second variant of invention through duct of slider is arranged in front of outlet duct in lower limit position of slider. Said cone-shape through duct of slider is closed by means of plug pressed-in to it.
EFFECT: improved design providing possibility for extracting last blank out of outlet duct before starting pressing of next lot of blanks.
2 cl, 5 dwg
SUBSTANCE: inventions relate to forging of metallic parts, particularly parts of irregular shape, for instance gas-turbine engine blades. Die block for forging allows at one surface a half of impression of forged part. At this surface it is located facility providing marking by two directions. Relative to marking it is specified position of impress of forged part. Facility consists of two projecting relative to mentioned surface cushions. Each of cushions allows two grooves, forming two mentioned directions.
EFFECT: facility, providing marking, is used at checking of convergence of two mentioned die blocks for forging after treatment of impressions and after installation of these die blocks in press for forging.
6 cl, 4 dwg