CN201913827U

CN201913827U - Over head type precise machinery synchronous full load blanking buffer unit

Info

Publication number: CN201913827U
Application number: CN2010206490976U
Authority: CN
Inventors: 叶臻
Original assignee: YANGZHOU JFMMRI METALFORMING MACHINERY CO Ltd
Current assignee: YANGZHOU JFMMRI METALFORMING MACHINERY CO Ltd
Priority date: 2010-12-09
Filing date: 2010-12-09
Publication date: 2011-08-03
Anticipated expiration: 2020-12-09

Abstract

The utility model discloses an over head type precise machinery synchronous full load blanking buffer unit and relates to the technical field of a large hydropress, which comprises an upper crossbeam and a sliding block bracket; the upper crossbeam is provided with two through holes; guide columns are arranged in the through holes in a penetrating manner; the upper end of the guide column is connected with a buffer nut; the lower end of the guide column is connected with the sliding block bracket through a lock nut; the lower end of the guide column is provided with a radical groove; a flat key is arranged in the radical groove; an adjusting screw rod, a hollow thread bushing and a worm wheel are sheathed outside the guide column in sequence; a reducing motor is arranged between the two guide columns; the two output shafts of the reducing motor are connected with a synchronous transmission shaft through a coupling; the synchronous transmission shaft is connected with a worm; a worm wheel is engaged with the worm; a buffer cylinder is arranged between the adjusting screw rod and the buffer nut; the upper crossbeam is connected with two guide brackets; the adjusting screw rod is connected with a guide flat key; and the other end of the guide flat key is arranged in a guide slot of the guide bracket. The over head type precise machinery synchronous full load blanking buffer unit greatly reduces the vibration and blanking noises of the hydropress, and can effectively prolong the service lives of the hydropress and modules.

Description

The accurate mechanical synchronization full and down of overhead type stamping-out buffer unit

Technical field

The utility model relates to a kind of technical field of large hydraulic press, relates in particular to the buffer unit that slide block is carried out the full and down stamping-out on the large hydraulic press fuselage.

Background technology

Fast development along with modern mechanical industry, hydraulic press as forging equipment is also constantly striding forward to maximization, automation, precise treatment and intelligent direction, and need constantly possess the demand for development of low-carbon economy and green manufacture technology, realizing automation, when reducing labor strength, more need the harm of avoiding equipment powerful noise pollution in service to bring.Because hydraulic press can cause whole fuselage shaking and subsidiary powerful stamping-out noise when carrying out stamping and blanking, traditional big load stamping-out slider of hydraulic press both sides set up two little load cushion dashpots respectively and the adjusting screw(rod) device is realized pooling feature, because adjusting device and cushion cylinder are separate, there are factors such as the more loaded down with trivial details and cushion effect deficiency of adjustment process, so be not very desirable to the effect that reduces noise.As when cushioning effect point position need be adjusted, starter motor at first, driving worm decelerating machine by gear pair rotates, one in two outputs of worm decelerating machine is passed through chain and directly drives worm screw rotation in the worm gear case, and the drive worm gear rotates, because hollow thread cover and screw rod are threaded engagement, and the screw rod upper end installs dive key and comes anti-rotation, so screw rod is only made movement in vertical direction the rotation of worm gear drives hollow thread cover the time; Another output is also made movement in vertical direction by the screw rod in the drive another one worm gear cases such as sprocket wheel, chain and transmission shaft lever simultaneously.Because the middle transmission process more complicated of this transmission device, the drive gap of chain and sprocket wheel is bigger, when adding rotating, the two screw rods driving error differs greatly, and when the high speed transmission chain severity of beating, transmission shaft lever distortion when transmitting moment of torsion simultaneously is very big, these factors not only constitute influence to transmission accuracy, and the adjusting screw(rod) on both sides is difficult to guarantee in same level height in the adjusting device, so in the local overload phenomenon that exists of the instantaneous screw rod of buffering, cause the stressed biasing of slide block still to produce strong impact shock, therefore must adjust repeatedly just and can produce a desired effect, labour intensity is big, wastes time and energy, influence the service life of press and mould simultaneously, be not suitable for the production requirement of multi-varieties and small-batch.In addition and since reasons in structure cause this kind device be not suitable for need be from the side the press of mold exchange or feeding more, range of application is restricted.

Summary of the invention

The purpose of this utility model provides the accurate mechanical synchronization full and down of a kind of overhead type stamping-out buffer unit, fully absorbing slide block when workpiece is sheared fracture in the stamping-out process loses the kinetic energy of load suddenly and drives the oil cylinder inner fluid and elastic potential energy that the fuselage load distortion is gathered, reduce the vibration and the stamping-out noise of press greatly, improve the manually-operated environment, and prolong service life of press and mould effectively, enlarge range of application.

The utility model provides a kind of brand new for solving the technical problem and the deficiency that exist in the known technology, and the technical scheme of being taked is:

The accurate mechanical synchronization full and down of overhead type stamping-out buffer unit, comprise fuselage, fuselage is provided with entablature, slide block is set in the fuselage, slide block is arranged on the below of entablature, the left and right sides of slide block is fixedly connected slider bracket respectively, the two ends, the left and right sides of described entablature are provided with through hole respectively, install two fairleads in each through hole respectively, in two fairleads of the same side, place a guide pillar, the upper end of every guide pillar connects the buffering nut respectively, fixedly connected with corresponding slider bracket by locking nut respectively in the lower end of every guide pillar, the lower end of every guide pillar is provided with radial groove respectively, and flat key is set respectively in each radial groove, and each flat key is fixedlyed connected with corresponding slider bracket respectively; Every guide pillar is nested with adjusting screw(rod) outward respectively, each adjusting screw(rod) hollow thread cover that is threaded respectively outward, and the outer fixedly connected worm gear of each hollow thread cover, each adjusting screw(rod), hollow thread cover and worm gear are separately positioned on the top of entablature; Between two guide pillars reducing motor is set, reducing motor is fixedly connected on the top of entablature, and reducing motor connects two output shafts, and each output shaft connects the Synchronous Transmission axle by shaft coupling, and the Synchronous Transmission axle connects worm screw, and the worm gear of the same side is meshed with worm screw; Between each adjusting screw(rod) and the buffering nut cushion cylinder is set respectively, cushion cylinder is fixedly connected on the upper end of adjusting screw(rod); Fixedly connected two guiding trestles on the described entablature, the upper end of each guiding trestle vertically is provided with gathering sill respectively, the fixedly connected dive key of difference on each adjusting screw(rod), the other end of each dive key is separately positioned in corresponding each gathering sill.

The advantage that the utlity model has is: 1), guaranteed stationarity and the synchronism of both sides adjusting screw(rod), thereby satisfied the high-precision requirement in cushioning effect point position in movement in vertical direction by the rigid mechanical transmission, and easy to operate; 2) buffering adjusting device and cushion cylinder is assembled into integrative-structure, and places the fuselage top, has simple in structurely, easy to adjust, satisfies the more requirement of mold exchange or feeding press of side simultaneously, widens the scope of application; 3) it is little to have a vibration, characteristics such as impact noise is low.

Cushion cylinder of the present utility model comprises cylinder body, piston, gland and Quenching Sheet, fixedly connected with gland in the upper end of cylinder body, piston is arranged in the cylinder body, Quenching Sheet is fixedly connected on the top of piston, described gland, Quenching Sheet and piston are nested with respectively outside guide pillar, and the internal diameter of gland is greater than the external diameter of buffering nut.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model.

Fig. 2 be among Fig. 1 A-A to view.

Fig. 3 is the side view of Fig. 1.

Fig. 4 is a B portion enlarged drawing among Fig. 1.

Fig. 5 is a C portion enlarged drawing among Fig. 1.

Among the figure, 101, reducing motor; 102, universal coupling with spider; 103, Synchronous Transmission axle; 104, worm screw; 105, guide pillar; 106, adjusting screw(rod); 107, buffering nut; 110 gathering sills; 111, dive key; 112, guiding trestle; 201, entablature; 202 fairleads; 301, slide block; 302, locking nut; 303, flat key; 304 slider brackets; 305 radial grooves; 401, hollow thread cover; 402, worm gear; 403, connect flat key; 404, worm gear case gland; 405, worm gear case; 501, piston; 502, Quenching Sheet; 503, gland; 504, cylinder body; 505 fuselages; 506 through holes; 507 output shafts.

The specific embodiment

As Fig. 1,2,4, shown in 5, be the accurate mechanical synchronization full and down of overhead type stamping-out buffer unit, comprise fuselage 505, fuselage 505 is provided with entablature 201, slide block 301 is set in the fuselage 505, slide block 301 is arranged on the below of entablature 201, the left and right sides of slide block 301 is fixedly connected slider bracket 304 respectively, the two ends, the left and right sides of entablature 201 are provided with through hole 506 respectively, install two fairleads 202 in each through hole 506 respectively, in two fairleads 202 of the same side, place a guide pillar 105, the upper end of every guide pillar 105 connects buffering nut 107 respectively, fixedly connected with corresponding slider bracket 304 by locking nut 302 respectively in the lower end of every guide pillar 105, the lower end of every guide pillar 105 is provided with radial groove 305 respectively, in each radial groove 305 flat key 303 is set respectively, each flat key 303 is fixedlyed connected with corresponding slider bracket 304 respectively.The every guide pillar 105 outer adjusting screw(rod)s 106 that are nested with respectively, each adjusting screw(rod) 106 outer hollow thread cover 401 that are threaded respectively, each hollow thread cover 401 is outer by connecting flat key 403 fixedly connected worm gears 402, worm gear 402 is arranged in the worm gear case 405, and the upper end of worm gear case 405 connects worm gear case gland 404.Each adjusting screw(rod) 106, hollow thread cover 401 and worm gear 402 are separately positioned on the top of entablature 201.Between two guide pillars 105 reducing motor 101 is set, reducing motor 101 is fixedly connected on the top of entablature 201, reducing motor 101 connects two output shafts 507, each output shaft 507 connects Synchronous Transmission axle 103 by universal coupling with spider 102, Synchronous Transmission axle 103 connects worm screw 104, and the worm gear 402 of the same side is meshed with worm screw 104.Between each adjusting screw(rod) 106 and the buffering nut 107 cushion cylinder is set respectively, cushion cylinder comprises cylinder body 504, piston 501, gland 503 and Quenching Sheet 502, fixedly connected with gland 503 in the upper end of cylinder body 504, fixedly connected with adjusting screw(rod) 106 in the lower end of cylinder body 504, piston 501 is arranged in the cylinder body 504, Quenching Sheet 502 is fixedly connected on the top of piston 501, gland 503, Quenching Sheet 502 and piston 501 are nested with respectively outside guide pillar 105, and the internal diameter of gland 503 is greater than the external diameter of buffering nut 107.

As shown in Figure 3, fixedly connected two guiding trestles 112 on the entablature 201, the upper end of each guiding trestle 112 vertically is provided with gathering sill 110 respectively, the fixedly connected dive key 111 of difference on each adjusting screw(rod) 106, the other end of each dive key 111 is separately positioned in corresponding each gathering sill 110.

Operation principle of the present utility model is: the top that a whole set of transmission device, cushion stroke synchronous regulation mechanism and full and down cushion cylinder is all placed fuselage entablature 201, two through holes 506 of left and right directions processing at entablature 201, so that fairlead 202 and guide pillar 105 are installed, guide pillar 105 lower ends connect by locking nut 302 with the slider bracket 304 of slide block 301 both sides and come anti-rotation by flat key 303, and guide section runs through cushion stroke adjusting screw(rod) 106 with buffering oil cylinder piston 501 and at end thread place screw-in buffering nut 107 in the middle of the guide pillar 105.When hydraulic press punching cushioning effect point position need be adjusted, start the worm and gear reducing motor 101 of double output shaft, the worm screw 104 that drives the left and right sides by universal coupling with spider 102 and Synchronous Transmission axle 103 is respectively rotated, worm screw 104 rotations drive worm gear 402 and hollow thread cover 401 rotates, because adjusting screw(rod) 106 and hollow thread cover 401 are threaded engagement, simultaneously adjusting screw(rod) 106 is fixed on dive key 111 constraints that inlay guiding trestle 112 and adjusting screw(rod) 106 upper ends on the entablature, only move both vertically, so adjusting screw(rod) 106 drive cushion cylinder cylinder bodies 504 in both sides were synchronized with the movement in vertical direction together when worm gear 402 drove 401 rotations of hollow thread cover, S is an adjustment stroke among Fig. 1.When design, must guarantee that the annular stressed active area of cushion cylinder piston 501 is slightly larger than the stressed active area of main oil cylinder piston, and rationally determine the stamping-out cushion stroke.Move downwards when slider of hydraulic press 301 drives buffering nut 107, thereby buffering nut 107 is realized the full and down buffering when directly clashing into the Quenching Sheet 502 on the cushion cylinder.

Claims

1. the accurate mechanical synchronization full and down of overhead type stamping-out buffer unit, comprise fuselage, fuselage is provided with entablature, slide block is set in the fuselage, slide block is arranged on the below of entablature, the left and right sides of slide block is fixedly connected slider bracket respectively, it is characterized in that: the two ends, the left and right sides of described entablature are provided with through hole respectively, install two fairleads in each through hole respectively, in two fairleads of the same side, place a guide pillar, the upper end of every guide pillar connects the buffering nut respectively, fixedly connected with corresponding slider bracket by locking nut respectively in the lower end of every guide pillar, the lower end of every guide pillar is provided with radial groove respectively, and flat key is set respectively in each radial groove, and each flat key is fixedlyed connected with corresponding slider bracket respectively; Every guide pillar is nested with adjusting screw(rod) outward respectively, each adjusting screw(rod) hollow thread cover that is threaded respectively outward, and the outer fixedly connected worm gear of each hollow thread cover, each adjusting screw(rod), hollow thread cover and worm gear are separately positioned on the top of entablature; Between two guide pillars reducing motor is set, reducing motor is fixedly connected on the top of entablature, and reducing motor connects two output shafts, and each output shaft connects the Synchronous Transmission axle by shaft coupling, and the Synchronous Transmission axle connects worm screw, and the worm gear of the same side is meshed with worm screw; Between each adjusting screw(rod) and the buffering nut cushion cylinder is set respectively, cushion cylinder is fixedly connected on the upper end of adjusting screw(rod); Fixedly connected two guiding trestles on the described entablature, the upper end of each guiding trestle vertically is provided with gathering sill respectively, the fixedly connected dive key of difference on each adjusting screw(rod), the other end of each dive key is separately positioned in corresponding each gathering sill.

2. the accurate mechanical synchronization full and down of overhead type according to claim 1 stamping-out buffer unit, it is characterized in that: described cushion cylinder comprises cylinder body, piston, gland and Quenching Sheet, fixedly connected with gland in the upper end of cylinder body, piston is arranged in the cylinder body, Quenching Sheet is fixedly connected on the top of piston, described gland, Quenching Sheet and piston are nested with respectively outside guide pillar, and the internal diameter of gland is greater than the external diameter of buffering nut.