CN209465642U - Numerical-control electric screw press bottom ejection device - Google Patents

Abstract

The utility model relates to numerical-control electric screw press bottom ejection devices, including liftout bracket, hydraulic cylinder, lower roof plate, the bottom knockout mechanism being connected between the cylinder rod of hydraulic cylinder and lower roof plate, be characterized in that: bottom knockout mechanism includes liftout crossbeam that is hinged with the cylinder rod of hydraulic cylinder and being movable in a vertical direction under Driven by Hydraulic Cylinder, it is fixed on the lower pallet of liftout beam surface upper, lower end contacted with lower pallet upper surface and upper end pass through liftout bracket upper backup pad lower push rod group, it is fixed on the upper pallet of lower push rod group upper end, the upper ejector pin group being fixedly connected above upper pallet and with lower roof plate lower surface, for being fixed on press machine lower bolster lower surface and going up guide sleeve correspondingly with each upper ejector pin of upper ejector pin group respectively, be fixed on the upper backup pad of liftout bracket and with each lower push rod of lower push rod group it is one-to-one under Guide sleeve.Its is structurally reasonable, using reliable, ejects motion stability, liftout effect is good, and the forging of one stroke ejection multistation.

Description

Numerical-control electric screw press bottom ejection device

Technical field

The utility model relates to data electric screw press, especially a kind of numerical-control electric screw press bottom knockout dress It sets, is suitable for complicated forging ejection system.

Background technique

Data electric screw press is a kind of extremely strong forging equipment of technique applicability, has that versatility is big, structure is simple Just, adjustment and maintenance is easy, sliding block without bottom dead centre, it is high convenient for mold design and forging precision the features such as, be suitable for various finish forges, essence The processes such as whole, pressure-sizing, coining, alignment, smoothing.Electric screw press can be used to being hot-forged and being used for finish forge, finishing；Both It can be suitably used for stainless steel composite bottom boiler pressure welding technique, and the precision forging of titanium alloy blade and other blades can be applicable in.

Generally, after fly press forging, sliding block backhaul needs bottom ejection device by forging ejection die at this time. But there are the following problems in use for existing bottom ejection device:

1, mandril is too long, and guiding performance is bad, and bending is easy to happen during ejection forging, and ejection movement is unstable, influences Eject effect；

2, it when ejecting forging, because hydraulic cylinder is transported to, is caused between upper pallet upper surface and the lower end of upper ejector pin group without reserving Upper pallet and the cold of upper ejector pin are hit, and upper ejector pin is caused to be bent.

3, it is unsuitable for the ejection system of multistation complexity, working efficiency is low.

Based on this, existing bottom ejection device still needs to improve.

Summary of the invention

The purpose of this utility model is to provide for a kind of numerical-control electric screw press bottom knockout to solve the above problems Device, it is structurally reasonable, using reliable, motion stability is ejected, liftout effect is good, the ejection system suitable for multistation.

The technical solution of the utility model is:

A kind of numerical-control electric screw press bottom ejection device, including for being fixed on press machine tool base bottom center Liftout bracket, the lower roof plate for being inlaid in press machine lower bolster upper surface, is connect the hydraulic cylinder being fixedly connected with liftout bracket Bottom knockout mechanism between the cylinder rod and lower roof plate of hydraulic cylinder, is characterized in that: the bottom knockout mechanism include with it is hydraulic The cylinder rod of cylinder it is hinged and be movable in a vertical direction under Driven by Hydraulic Cylinder liftout crossbeam, be fixed under liftout beam surface upper Supporting plate, lower end contacted with lower pallet upper surface and upper end pass through liftout bracket upper backup pad lower push rod group, be fixed on Xia Ding The upper pallet of bar group upper end, the upper ejector pin group being fixedly connected above upper pallet and with lower roof plate lower surface, for being fixed on Press machine lower bolster lower surface and respectively with each upper ejector pin of upper ejector pin group correspondingly upper guide sleeve, be fixed on liftout branch The upper backup pad of frame and guide sleeve is descended correspondingly with each lower push rod of lower push rod group, the upper pallet upper surface and upper top Spacing is reserved between the lower end of bar group, the lower roof plate is in " Lv " shape.

Above-mentioned numerical-control electric screw press bottom ejection device, the liftout bracket are consolidated by edge and press machine tool pedestal Fixed upper backup pad, immediately below upper backup pad and be connected and fixed with hydraulic cylinder body lower supporting plate, be connected to upper and lower branch Forward and backward vertical plate between fagging, set on the left and right both ends in lower supporting plate upper surface positioning sleeve, be fixed below upper backup pad and Lower end is inserted into positioning sleeve and fixed guide post group is at the positioning sleeve outer wall is equipped with location hole, and the liftout crossbeam is corresponding Guide rod position is fixed with the copper sheathing with guide rod cooperation.

Above-mentioned numerical-control electric screw press bottom ejection device, the liftout crossbeam are located at forward and backward in the horizontal direction Between vertical plate, in vertical direction between upper and lower support plate.

Above-mentioned numerical-control electric screw press bottom ejection device, the lower push rod group by being distributed on liftout crossbeam respectively Square center, the corresponding 5 lower push rods composition for being distributed in arranged on left and right sides above liftout crossbeam, the lower pallet be divided into it is left, In, right three blocks of plates, support distribution is in the lower push rod of liftout crossbeam upper left, distribution center position above liftout crossbeam respectively The lower push rod of center and the lower push rod for being distributed in liftout crossbeam upper right.

Above-mentioned numerical-control electric screw press bottom ejection device, the upper ejector pin group by being distributed in lower roof plate following table respectively Face center, the 5 upper ejector pins composition for being distributed in lower roof plate lower surface arranged on left and right sides.

Above-mentioned numerical-control electric screw press bottom ejection device, the upper backup pad lower surface is equipped with limit plate, described Limit plate be equipped with for limit liftout crossbeam stroke close to switch.

The beneficial effects of the utility model are:

1, cooperated using upper and lower mandril group, realize power transmitting stable over long distances, avoid conventional monolithic mandril and deposit Flexible, ejection act unstable problem, ejection effect is good.

2, using unique bottom knockout Agency cross lower roof plate, multiplexing in one stroke ejection die may be implemented The forging of position, greatly improves production efficiency.

3, it is reserved with spacing between upper pallet upper surface and the lower end of upper ejector pin group, avoided because of upper pallet and upper ejector pin It is cold hit caused by upper ejector pin be bent.

Detailed description of the invention

Fig. 1 is the usage state diagram of the utility model；

Fig. 2 is the left view of Fig. 1；

Fig. 3 be in Fig. 1 A-A to sectional view；

Fig. 4 is B-B direction sectional view in Fig. 1；

Fig. 5 is Q direction view in Fig. 1.

In figure: 1. hydraulic cylinders, 2. lower supporting plates, 3. positioning sleeves, 4. guide rods, 5. copper sheathings, 6. liftout crossbeams, 7. subiculums Plate, 8. upper backup pads, 9. pedestals, 10. lower guide sleeves, 11. upper pallets, 12. upper ejector pin groups, guide sleeve on 13., 14. lower bolsters, 15. positioning pin, 16. lower roof plates, 17. lower push rod groups, 18. vertical plates, 19. limit plates, 20. close switches.

Specific embodiment

As Figure 1-Figure 5, the numerical-control electric screw press bottom ejection device, including for being fixed on press machine tool bottom Seat 9 bottom centre liftout bracket, be fixedly connected with liftout bracket hydraulic cylinder 1, for being inlaid in press machine lower bolster 14 Bottom knockout mechanism between the lower roof plate 16 on surface, the cylinder rod for being connected to hydraulic cylinder 1 and lower roof plate 16.

Wherein, the bottom knockout mechanism include hinged with the cylinder rod of hydraulic cylinder 1 and under the driving of hydraulic cylinder 1 vertically The liftout crossbeam 6 of movement, the lower pallet 7 for being fixed on 6 upper surface of liftout crossbeam, lower end contact and upper end with 7 upper surface of lower pallet Across the upper backup pad 8 of liftout bracket lower push rod group 17, be fixed on 17 upper end of lower push rod group upper pallet 11, be located at upper pallet 11 top and be fixedly connected with 16 lower surface of lower roof plate upper ejector pin group 12, for be fixed on 14 lower surface of press machine lower bolster and Respectively with each upper ejector pin of upper ejector pin group 12 correspondingly upper guide sleeve 13, be fixed on liftout bracket upper backup pad 8 and Guide sleeve 10 is descended correspondingly with each lower push rod of lower push rod group 17.11 upper surface of upper pallet and upper ejector pin group 12 10mm spacing is reserved between lower end.The lower roof plate 16 is in " Lv " shape.

In the present embodiment, the liftout bracket is by edge with the upper backup pad 8 of the fixation of press machine tool pedestal 9, set on upper branch The lower supporting plate 2 that is connected and fixed immediately below fagging 8 and with 1 cylinder body of hydraulic cylinder, be connected to it is forward and backward between upper and lower support plate 8,2 Vertical plate 18, set on the left and right both ends in 2 upper surface of lower supporting plate positioning sleeve 3, be fixed on the lower section of upper backup pad 8 and lower end insertion is fixed In position set 3 and fixed guide rod 4 forms, and 3 outer wall of positioning sleeve is equipped with location hole, the corresponding guide rod 4 of the liftout crossbeam 6 Position is fixed with the copper sheathing 5 cooperated with guide rod 4.The liftout crossbeam 6 in the horizontal direction between forward and backward vertical plate 18, In vertical direction between upper and lower support plate 8,2.The lower push rod group 17 by being distributed in 6 top of liftout crossbeam respectively Heart position, the corresponding 5 lower push rods composition for being distributed in 6 top arranged on left and right sides of liftout crossbeam, the lower pallet 7 divide for it is left, in, Right three blocks of plates, support distribution is in the lower push rod of 6 upper left of liftout crossbeam, distribution center position above liftout crossbeam 6 respectively The lower push rod of center and the lower push rod for being distributed in 6 upper right of liftout crossbeam, it is horizontal that block design avoids further liftout Beam 6 is along 4 uplink of guide rod, and guide rod 4 is in the horizontal direction between adjacent two pieces of lower pallets 7.The upper ejector pin group 12 by 5 upper ejector pin groups for being distributed in 16 lower surface center of lower roof plate respectively, being distributed in 16 lower surface arranged on left and right sides of lower roof plate At.8 lower surface of upper backup pad is equipped with limit plate 19, and the limit plate 19 is equipped with for limiting connecing for liftout crossbeam stroke Nearly switch 20, it is described close to switch and to alarm close to switch, lower limit close to switch close to switch 20 including upper limit.

Working principle:

In use, lower roof plate 16 is flush-mounted in the groove that 14 upper surface of press machine lower bolster opens up, and groove floor is corresponding Upper ejector pin position is equipped with through-hole, and upper guide sleeve 13 is fixed with 14 upper surface of lower bolster.14 upper surface respective slot surrounding of lower bolster Position is respectively provided with the positioning pin 15 of positioning mold, and 15 top of the positioning pin milling is flat, is conducive to positioning.Liftout bracket it is upper 8 edge of support plate is connected and fixed with 9 bottom of press machine lathe base.

After press machine completes die casting, sliding block resets, and starts hydraulic cylinder 1, and cylinder rod pushes liftout crossbeam 6 along 4 uplink of guide rod, After then 10 uplink of guide sleeve in the case where liftout crossbeam 6 drives lower edge of lower push rod group 17, upper pallet 11 and the lower end in contact of upper ejector pin group 12 Push upper ejector pin group 12 along upper 13 uplink of guide sleeve, to push 16 uplink of lower roof plate to realize liftout movement, when arrival liftout row When the journey upper limit, signal, 1 stopping of hydraulic cylinder movement, positioned at the more of mold different station are issued close to switch 20 on limit plate 19 A forging is ejected simultaneously by lower roof plate 16；After forging is removed, the retraction cylinder rod of hydraulic cylinder 1, lower roof plate 16 is equal to be resetted.

Claims (6)

1. a kind of numerical-control electric screw press bottom ejection device, including the top for being fixed on press machine tool base bottom center Material bracket, the lower roof plate for being inlaid in press machine lower bolster upper surface, is connected to the hydraulic cylinder being fixedly connected with liftout bracket Bottom knockout mechanism between the cylinder rod and lower roof plate of hydraulic cylinder, it is characterised in that: the bottom knockout mechanism includes and hydraulic cylinder Cylinder rod is hinged and the liftout crossbeam being movable in a vertical direction under Driven by Hydraulic Cylinder, the subiculum for being fixed on liftout beam surface upper Plate, lower end contacted with lower pallet upper surface and upper end pass through liftout bracket upper backup pad lower push rod group, be fixed on lower push rod The upper pallet of group upper end, the upper ejector pin group being fixedly connected above upper pallet and with lower roof plate lower surface are pressed for being fixed on Power machine lower bolster lower surface and respectively with each upper ejector pin of upper ejector pin group correspondingly upper guide sleeve, be fixed on liftout bracket Upper backup pad and descend guide sleeve, the upper pallet upper surface and upper ejector pin correspondingly with each lower push rod of lower push rod group Spacing is reserved between the lower end of group, the lower roof plate is in " Lv " shape.

2. numerical-control electric screw press bottom ejection device according to claim 1, it is characterised in that: the liftout bracket It is connected and fixed by the fixed upper backup pad in edge and press machine tool pedestal, set on upper backup pad underface and with hydraulic cylinder body Lower supporting plate is connected to the forward and backward vertical plate between upper and lower support plate, the positioning set on the left and right both ends in lower supporting plate upper surface It covers, be fixed on the guide post group in below upper backup pad and lower end insertion positioning sleeve and fixed at the positioning sleeve outer wall is equipped with Location hole, the liftout crossbeam correspond to guide rod position and are fixed with the copper sheathing cooperated with guide rod.

3. numerical-control electric screw press bottom ejection device according to claim 2, it is characterised in that: the liftout crossbeam In the horizontal direction between forward and backward vertical plate, in vertical direction between upper and lower support plate.

4. numerical-control electric screw press bottom ejection device according to claim 1, it is characterised in that: the lower push rod group By being distributed in liftout crossbeam upper center position, corresponding 5 lower push rod groups for being distributed in arranged on left and right sides above liftout crossbeam respectively At the lower pallet is divided into three blocks of left, center, right plate, and support distribution is in the lower push rod of liftout crossbeam upper left, distribution respectively Heart position in liftout crossbeam upper center position lower push rod and be distributed in the lower push rod of liftout crossbeam upper right.

5. numerical-control electric screw press bottom ejection device according to claim 1, it is characterised in that: the upper ejector pin group It is made of 5 upper ejector pins for being distributed in lower roof plate lower surface center respectively, being distributed in lower roof plate lower surface arranged on left and right sides.

6. numerical-control electric screw press bottom ejection device according to claim 2, it is characterised in that: the upper backup pad Lower surface is equipped with limit plate, the limit plate be equipped with for limit liftout crossbeam stroke close to switch.