CN201070671Y - Accurately positioning lever press - Google Patents
Accurately positioning lever press Download PDFInfo
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- CN201070671Y CN201070671Y CNU2007200552888U CN200720055288U CN201070671Y CN 201070671 Y CN201070671 Y CN 201070671Y CN U2007200552888 U CNU2007200552888 U CN U2007200552888U CN 200720055288 U CN200720055288 U CN 200720055288U CN 201070671 Y CN201070671 Y CN 201070671Y
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Abstract
The utility model discloses an accurate positioning lever punch press, comprising a casing, a main body, a power source, an actuating mechanism, an upper punch, a lower punch, a working table, an alloy die, a lower post rod mechanism and an upper slide bar; wherein, the lower post rod mechanism comprises a lower post rod, a post rod sleeve and an offsetting spring for cushioning; the upper punch and the lower punch are both provided with raised punch pieces; the upper punch and the upper slide bar are connected with each other fixedly, and the lower punch is fixedly connected with the lower post rod; the working table of the punch press also comprises a cavity die sleeve, a cavity die guide mechanism and a micro spring mechanism; the cavity die sleeve is embedded in the working table; the cavity die guide mechanism which bears the alloy die is embedded in the inner cavity of the cavity die sleeve; the micro spring mechanism is arranged between the outer bottom surface of the cavity die guide mechanism and the inner bottom surface of the cavity die sleeve along the axial direction; the upper end of the micro spring mechanism bears the cavity die guide mechanism, and the lower end is arranged on the inner bottom surface of the cavity die sleeve. The utility model can ensure that the die can keep good vertical guide when floating up and down, thereby enhancing the die accuracy.
Description
Technical field
The utility model relates to a kind of lever press of metallurgical powder processing, particularly relates to a kind of pinpoint lever press.
Background technology
In the prior art, lever press to metallurgical powder machine-shaping comprises casing, fuselage, power source, transmission mechanism, upper punch 3, low punch 4, workbench 19, former cover 9, alloy mold 7, lower push rod 18 and upper slide bar 1, realizes mechanized operation from powder feeding → compacting → demoulding.Referring to Fig. 1, upper punch 3 dashes or has 1,2 drift sheet for flat, the low punch 4 that is positioned at workbench 19 belows is made of the low punch sheet of low punch seat and vertical protrusion, alloy mold 7 is embedded in the workbench 19, its bottom surface is pressed in the upper end of spring, be pressed on the spring under the effect that is positioned at the pressure strip on the workbench, the end face of mould 7 is then concordant with the table top of workbench 19, and low punch sheet 4a directly is welded on the low punch seat 4b.Its weak point is:
(1) directly supports by spring owing to mould, be that elasticity is installed on the push rod of low punch the impulsive force with the buffering upper punch, so it can move downward under the effect that is subjected to upthrust, rely on spring reset then, be difficult to guarantee the stability in the production process like this, be difficult to guarantee product quality.
(2) said structure can't guarantee mould good guiding when fluctuating, product causes crackle, the lamination of product easily because of perpendicularity is bad when the demoulding, particularly for the porous mold and the polygon mould of high-precision requirement, said structure is difficult to guarantee the required precision of mould when fluctuating.
(3) there is fit clearance in the said structure, makes in the production process situation of leaking material that exists inevitably, make in the workbench and each structural member of below is crossed a slippage, be easy to cause snap gauge, cause that workman's working strength is big, former, the auxiliary material waste is also bigger.
(4) push rod is a square pole, square hole by the top stem casing that is fixed on the workbench below limits its travel direction, unlubricated device between push rod and the top stem casing, fit clearance is big, easy to wear, often, make the bad stability of forcing press, strengthened workman's workload again because of the reason of leaking material makes push rod stuck in top stem casing.
(5) forcing press of the prior art, its upper and lower drift is the sub-assembly that axial bolt connects, the drift sheet that advances low punch on the hole forming also is radially to be tightened on the sub-assembly by screw, combinational gap is big, gap, location (pitch of holes) between each drift sheet is difficult to control, the axiality of the axial line of last low punch sheet and core rod axial line is difficult to guarantee, causes going up low punch sheet frangibility in the pressing process, and piece is collided on the plane on the core rod.
(6) driving upper punch finishes the upper slide bar of product pressing stroke and can only finish the required stroke of product compacting; but can not control the radial deflection of upper punch; therefore usually can cause upper punch to fracture and the last plane damage of mould, nib, the polygon product in incompatibility cross section and the compacting of multiple-hole die product.
(7) because of aforesaid a series of reasons, cause that mould and die accuracy is low, the mould loss is big, waste is big, production cost is high, and the product burr is big, falls the corner easily, of poor quality.
Summary of the invention
The purpose of this utility model is exactly for a kind of pinpoint lever press is provided, guarantee that mould keeps good vertically-guided in fluctuating, and can apply bidirection press to product when mould fluctuates, improve the precision of mould and then improve the quality of products.
Above-mentioned purpose of the present utility model realizes by following technical scheme: a kind of pinpoint lever press, comprise casing, fuselage, power source, transmission mechanism, upper punch, low punch, workbench, alloy mold, lower push rod mechanism and upper slide bar, wherein, lower push rod mechanism comprises lower push rod, the back-moving spring of a top stem casing and a cushioning effect, all lobed drift sheet on upper punch and the low punch, upper punch and upper slide bar are fixedly linked, low punch and lower push rod are fixedly linked, the workbench that it is characterized in that described forcing press also comprises the former cover, former guiding mechanism and microsprings mechanism, the former cover is inlaid in the workbench, the former guiding mechanism is inlaid in the inner chamber of former cover, and the described alloy mold of support, microsprings mechanism is installed between former guiding mechanism outer bottom and the former cover inner bottom surface vertically, its upper end support former guiding mechanism, the lower end places on the former cover inner bottom surface.
In the utility model, former cover, former guiding mechanism and microsprings mechanism constitute the supporting seat of supporting mould, wherein, the structural design of former guiding mechanism, guaranteed that mould has kept good vertically-guided when fluctuating, eliminated product crackle, layering that product causes because of perpendicularity is bad when the demoulding, this structure has guaranteed that also mould keeps good high accuracy when fluctuating, satisfied high accuracy multiple-hole die, the required precision when polygon mould fluctuates to mould fully; Microsprings mechanism has realized that product regulating action by spring force in the compression moulding process makes mould apply bidirection press to product downwards when floating, and improves the uniformity of product pressed density.
Former cover described in the utility model is step-like tubular construction for the inner chamber of bottom surface perforate, it has the two-stage step surface, the interior wide size that makes former sleeve body inner chamber top is greater than the wide size that is positioned at the cylinder lumen bottom, form the one-level ring-shaped step between the two, the top inner chamber of described former cover is used for setting-in former guiding mechanism; Described former guiding mechanism is by the outer ring, ball and inner ring are formed, ball is positioned at, between the outer ring, in, the axis of outer ring overlaps and constitutes the axis of former guiding mechanism, inner ring moves axially the outer ring relatively, wherein, the outer ring has the tubular of the outline that cooperates with the top inner chamber profile phase of former cover and is embedded in the inner chamber of former cover top, its bottom surface is pressed on the aforesaid one-level annular table terrace, described inner ring also has tubular construction, but its inner barrel laterally is provided with the gripper shoe of center drilling, the described alloy mold of last end face support of this gripper shoe, the inner chamber that described inner ring is positioned at the gripper shoe top has the profile that matches with the alloy mold outline, is used for the setting-in alloy mold; Described microsprings mechanism comprises upper junction plate, lower connecting plate, in the connection, the connection handware of lower connecting plate and be placed in regulating spring on the handware, wherein, on, lower connecting plate all has for connecting the connecting hole that handware passes, regulating spring is installed in by connecting handware, between the lower connecting plate, upper junction plate is inlaid in the bottom of former guiding mechanism inner ring, bottom surface of end face and described inner ring cross-brace plate joins on it, lower connecting plate is positioned on the inner bottom surface of former cover, the central opening of described former cover is used for low punch and passes, around centre bore, then have a plurality of perforation, be used to hold the connection handware that protrudes from the lower connecting plate bottom surface.
The madial wall of described outer ring vertically has a plurality of arc rolling ball tracks, the lateral wall of corresponding inner ring also has a plurality of arc rolling ball tracks, both formations take up the ball hole of ball, can limit inner ring can not do circumferentially to rotate with respect to the outer ring, and inner ring in the course of the work can be with the fluctuating and float of mould, and promptly inner ring can move axially with respect to the outer ring.
The utility model can be done following improvement: the ball hole between the described inside and outside circle is 4 or 6 or 8 or 10, and a plurality of ball holes are along the circumferential direction uniform.
The utility model can be done following improvement: connect handware and the complete setting of regulating spring, its force value according to required carrying in the work is decided, described connection handware and regulating spring are 6 covers or 8 covers or 10 covers or 12 covers, and every cover connection handware and regulating spring are along the circumferential direction uniform.
Alloy mold described in the utility model is the projective table type mould, the top that the shoulder of alloy mold is made mould by annular trim ring and pressure strip is fixed, this annular trim ring has the profile that matches with the outline of alloy mold boss, the upper surface of this annular trim ring is mutually concordant with the upper surface of alloy mold boss, and it is mutually concordant with the upper surface of the die sleeve plate of forcing press, pressure strip is pressed on the trim ring, so that by trim ring mould is pressed on the former guiding mechanism.
Described lower push rod is a cylindrical bar, and being fixed on the guide hole that the top stem casing of workbench below cooperates with lower push rod accordingly is circular hole also, and the straight key and the keyway of guiding is set between the two.
Push rod is a round bar, and top stem casing has circular guide holes, and two ends edge copper sheathing, and straight key and keyway arrangements by being provided with between the two prevent the radially rotation of push rod.
Described upper punch links to each other by the card cap with upper slide bar, the card cap has internal thread, cooperates installation with the external screw thread of upper slide bar bottom relative set, and the card cap has a slot perpendicular to the upper punch direction of insertion, upper punch inserts in the slot of card cap, is tightened on upper slide bar by the card cap again; Described low punch also links to each other by the card cap with lower push rod, the card cap has internal thread, cooperates installation with the external screw thread of lower push rod top relative set, and the card cap has a slot perpendicular to the low punch direction of insertion, low punch inserts in the slot of card cap, is tightened on lower push rod by the card cap again.
Described upper punch is made up of punch holder and drift sheet, and wherein punch holder is for being with the tabular of installing hole, and its middle part has the slot hole of plug-in mounting drift sheet; Described low punch is made up of punch holder and drift sheet, and wherein punch holder is for being with the tabular of installing hole, and its middle part has the slot hole of plug-in mounting drift sheet.
The utility model can be done following improvement: the surface of the punch holder punch support sheet of described low punch is embedded with a carbide alloy board.
The utility model can be done following further improvement: the drift sheet on the described upper and lower drift is respectively in 3～7 scopes.
Forcing press described in the utility model also comprises the guide pillar mechanism with guide function, this guide pillar mechanism is made up of guide pillars and bushes, wherein guide pillar is installed on the fuselage, its axis is parallel with the axis of upper slide bar, guide pin bushing is " L " type structure, it vertically partly is installed on the upper slide bar, and its horizontal component has the guide pillar hole that can supply guide pillar to pass, and drives guide pin bushing when upper slide bar moves up and down and moves up and down along guide pillar.
The upper slide bar that is arranged so that of guide pillar mechanism can only be done axially-movable up and down on the track that guide pillars and bushes limits, prevent its radial deflection, this guide pillar mechanism also defines the perpendicularity of upper slide bar simultaneously, avoids upper punch to cause upper punch to fracture owing to radial deflection and the last plane of mould is damaged.
Two-sided gap between described guide pillars and bushes is 0.02～0.03mm.
Described guide pin bushing links to each other by screw with upper slide bar.
Compared with prior art, the utlity model has following remarkable result:
(1) because the alloy mold support on the former guiding mechanism, guarantees that mould keeps good vertically-guided when fluctuating, product crackle, layering that product causes because of perpendicularity is bad have been eliminated when the demoulding.
(2) microsprings mechanism has realized that product regulating action by spring force in the compression moulding process makes mould apply bidirection press to product downwards when floating, and improves the uniformity of product pressed density, has improved the quality of shaped article.
(3) owing to be provided with annular trim ring, to the mould compression fit, leakage material, snap gauge phenomenon in the pressing process are resolved, reduce the waste of raw material significantly, reduced production cost by annular trim ring.
(4) circular push rod and the top stem casing with guider can not vacillated now to the left, now to the right push rod, can thoroughly stop push rod and the stuck phenomenon of top stem casing not having under the situation of leaking material.
(5) it is external to play the back-moving spring of cushioning effect, is out of shape even constantly be squeezed, and can not influence the combination of each structure, does not influence also that the variation owing to spring influences operating accuracy and stability under the duty.
(6) the utility model low punch has adopted threaded card cap to be connected with push rod, can be fastening, there is not slipping space, and increased stability.
(7) go up low punch and change the combined type demountable structure into, can realize unified standard size, run into the drift sheet and damage, only need to have changed the drift sheet just, promptly go bad and promptly change, can significantly reduce the processing capacity of consumptive material and mould, reduce production costs, and help enhancing productivity.
(8) owing to be provided with guide pillar mechanism, make upper slide bar can only in the guide pin bushing in the gap that guide pillars and bushes limits, do axially-movable up and down, prevent its radial deflection, radial deflection≤the upper punch that allows and the fit clearance≤0.03mm of die hole, this guide pillar mechanism also defines the perpendicularity of upper slide bar simultaneously.
(9) because aforesaid series of advantages, the stability in the time of can improving the forcing press operation greatly and the precision of product, thereby being improved to of 2 products of maximum punching presses in the prior art once can be stamped out 3～7 products, and the core rod height that can be used for the compression moulding porous mold is increased to 18mm, 22mm, 25mm up to 40mm from 10mm, 12mm, 15mm, has satisfied the porous, shaped of various different section differing heights size products to greatest extent.
(10) owing to the mould and die accuracy height, the mould loss reduces, and prolong service life, and production cost reduces, and mould prolongs 2～3 times average life; The mould and die accuracy height, the problem of product burr solves basically, and production technology obtains simplifying, and the product appearance quality is improved significantly; Since porous, shaped, double 2～4 times of output, and production efficiency is greatly enhanced, and when satisfying the production schedule, can significantly cut down production equipment and reduce producers.
Description of drawings
Fig. 1 is the partial structurtes front view of last low punch, mould and the workbench of lever press in the prior art;
Fig. 2 is the partial structurtes front view of last low punch, mould and the workbench of one of the utility model embodiment;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the partial structurtes front view of two last low punch, mould and the workbench of the utility model embodiment;
Fig. 6 is the partial enlarged drawing of Fig. 5;
Fig. 7 is the partial enlarged drawing of Fig. 6;
Fig. 8 is the partial structurtes front view of three last low punch, mould and the workbench of the utility model embodiment.
Description of reference numerals
The specific embodiment
As Fig. 2 to a kind of pinpoint lever press shown in Figure 4, comprise casing, fuselage, power source, transmission mechanism, upper punch 3, low punch 4, workbench 19, alloy mold 7, lower push rod mechanism and upper slide bar 1, wherein, lower push rod mechanism comprises lower push rod 18, the back-moving spring 21 of a top stem casing 20 and a cushioning effect, all lobed drift sheet 3b on upper punch 3 and the low punch 4,4b, upper punch 3 and upper slide bar 1 are fixedly linked by card cap 2, card cap 2 has internal thread, cooperate installation with the external screw thread of upper slide bar 1 bottom relative set, card cap 2 has a slot perpendicular to upper punch 3 direction of insertion, upper punch 3 inserts in the slot of card cap 2, is tightened on upper slide bar 1 by card cap 2 again; Low punch 4 and lower push rod 18 also are fixedly linked by card cap 17, card cap 17 has internal thread, cooperate installation with the external screw thread of lower push rod 18 top relative set, card cap 17 has a slot perpendicular to low punch 4 direction of insertion, low punch 4 inserts in the slot of card cap 17, is tightened on lower push rod 18 by card cap 17 again.
Alloy mold 7 is the projective table type mould, the top that the shoulder of alloy mold 7 is made mould by annular trim ring 6 and pressure strip 5 is fixed, this annular trim ring 6 has the profile that matches with the outline of alloy mold 7 boss, the upper surface of this annular trim ring 6 is mutually concordant with the upper surface of alloy mold 7 boss, and it is mutually concordant with the upper surface of the die sleeve plate 8 of forcing press, pressure strip 5 is pressed on the trim ring 6, so that by trim ring 6 mould 7 is pressed on the former guiding mechanism.
During work, upper punch 3 down towards the time only act in the die cavity of mould 7 with drift sheet 3b, metallurgical powder in the die cavity is finished punch forming by upper and lower drift sheet 3b, 4b acting in conjunction in die cavity, it is the middle part that the forming area 7a of product is positioned at mould 7 die cavitys, the middle part of mould 7 is the mold core 7b that make with hard metal material, the forming area 7a of product is positioned at this core 7b, is shown in and has filled up metallurgical powder material to be punched in the forming area 7a.
The drift sheet also can adopt 3 or 5, decides according to the size and the production needs of mold pressing.
For preventing the damage of punch holder use, can also be embedded with a carbide alloy board on the surface of the punch holder punch support sheet of low punch, to avoid the drift sheet, cause the variation of product size making seat supports face depression under the drift under the effect of impulsive force.
The workbench of this lever press also comprises former cover 9, former guiding mechanism and microsprings mechanism, former cover 9, former guiding mechanism and the three of microsprings mechanism constitute the supporting seat of mould, former cover 9 is inlaid in the workbench 19, the former guiding mechanism is inlaid in the inner chamber of former cover 9, and support alloy mold 7, microsprings mechanism is installed in former guiding mechanism outer bottom vertically and former overlaps between 9 inner bottom surfaces, its upper end support former guiding mechanism, the lower end places former to overlap on 9 inner bottom surfaces.
The former guiding mechanism is by outer ring 10, ball 11 and inner ring 12 are formed, ball 11 is positioned at, outer ring 12, between 10, in, the axis of outer ring overlaps and constitutes the axis of former guiding mechanism, inner ring 12 outer ring 10 relatively moves axially, wherein, outer ring 10 has the tubular of the outline that cooperates with the top inner chamber profile phase of former cover and is embedded in former to be overlapped in the 9 top inner chambers, its bottom surface is pressed on the aforesaid one-level annular table terrace, inner ring 12 also has tubular construction, but its inner barrel laterally is provided with the gripper shoe of center drilling, the last end face support alloy mold 7 of this gripper shoe, the inner chamber that inner ring 12 is positioned at the gripper shoe top has the profile that matches with alloy mold 7 outlines, be used for the setting-in alloy mold, the madial wall of outer ring 10 vertically evenly has 6 arc rolling ball tracks, the lateral wall of corresponding inner ring 12 also evenly has 6 arc rolling ball tracks, both formations take up 6 ball holes of ball 11, vertically place 4～5 balls 11 in each ball hole, can limit inner ring 12 can not do circumferentially to rotate with respect to outer ring 10, when the former guiding mechanism is inlaid on the former cover 9, ball hole physical dimension overlap the physical dimension of 9 one-level step surfaces greater than former, guarantee that the ball 11 in the ball hole can not drop out.
Microsprings mechanism comprises upper junction plate 13, lower connecting plate 16, connect upper junction plate 13 and the dog screw 14 of lower connecting plate 16 and the regulating spring 15 on the ring set dog screw 14, wherein, on, lower connecting plate 13,16 all have the connecting hole that passes for dog screw 14, regulating spring 15 is installed in by dog screw 14, lower connecting plate 13, between 16, upper junction plate 13 is inlaid in the bottom of former guiding mechanism inner ring 12, bottom surface of end face and inner ring cross-brace plate joins on it, lower connecting plate 16 is positioned on the inner bottom surface of former cover 9, the central opening of former cover 9 is used for low punch and passes, around centre bore, then have a plurality of perforation, be used to hold the dog screw that protrudes from the lower connecting plate bottom surface, dog screw 14 and regulating spring 15 are 6 covers, and dog screw 14 and regulating spring 15 are along the circumferential direction uniform.
Lower push rod 18 in the utility model is a cylindrical bar, be fixed on the guide hole that the top stem casing 20 of workbench 19 belows cooperates with lower push rod 18 accordingly and also be circular hole, guider can be set between the two, axial straight key promptly is set on lower push rod 18, correspondence is provided with axial keyway on top stem casing 20, held stationary did not wave when lower push rod 18 was moved up and down, and can thoroughly stop the stuck phenomenon of lower push rod 18 and top stem casing 20 under the situation of do not have leaking material.When rocking bar 23 moves upward because of the leverage action instantly, following rocking bar 23 promotes lower push rod 18 by spring compression circle compression reseting spring 21 and moves upward, the drift sheet 4b of low punch 4 is moved up enter the mold core 7b of alloy mold 7, drift sheet 4b enters the work that die cavity can be finished the punching press and the demoulding, the lower end support of back-moving spring 21 is on holding nut 22, this holding nut 22 and lower push rod 18 lower ends are threaded, the rate of tension of regulating back-moving spring 21 by this holding nut 22; When rocking bar 23 moved downward instantly, lower push rod 18 moved downward to lower support jack 24 with following rocking bar 23 with the acting in conjunction of low punch 4 by gravity and spring force, and a working cycles is finished in lower push rod 18 stop motions.
This lever press also comprises the guide pillar mechanism with guide function, this guide pillar mechanism is made up of guide pillar 25 and guide pin bushing 26, the two-sided gap that guide pillar 25 and guide pin bushing are 26 is 0.02～0.03mm, wherein guide pillar 25 is vertically mounted on the fuselage, its axis is parallel with the axis of upper slide bar 1, guide pin bushing 26 is " L " type structure, it vertically partly is installed on the upper slide bar 1 by screw, its horizontal component has the guide pillar hole that can supply guide pillar 25 to pass, and drives guide pin bushing 26 when upper slide bar 1 moves up and down and moves up and down along guide pillar 25.
Fig. 5 is embodiment two of the present utility model to a kind of pinpoint lever press shown in Figure 7, different with embodiment one is, alloy mold 7 is the projective table type mould in the present embodiment, the shoulder of alloy mold 7 is pressed with annular trim ring 6, this annular trim ring 6 has the profile that matches with the outline of alloy mold 7 boss, the upper surface of this annular trim ring 6 is mutually concordant with the upper surface of alloy mold 7 boss, and it is mutually concordant with the upper surface of the die sleeve plate 8 of forcing press, pressure strip 5 is pressed on the trim ring 6, so that by trim ring 6 mould 7 is pressed on the former guiding mechanism.
A kind of pinpoint lever press shown in Figure 8 be embodiment three of the present utility model, different with embodiment two is, forcing press also comprises the guide pillar mechanism with guide function, this guide pillar mechanism is made up of guide pillar 25 and guide pin bushing 26, the two-sided gap that guide pillar 25 and guide pin bushing are 26 is 0.02～0.03mm, wherein guide pillar 25 is vertically mounted on the fuselage, guide pin bushing 26 is " L " type structure, vertically end and upper slide bar 1 link to each other by screw for they, its horizontal ends has the guide pillar hole that can supply guide pillar 25 to pass, and drives guide pillar 25 when upper slide bar 1 moves up and down and moves up and down along guide pin bushing 26.
Claims (13)
1. pinpoint lever press, comprise casing, fuselage, power source, transmission mechanism, upper punch, low punch, workbench, alloy mold, lower push rod mechanism and upper slide bar, wherein, lower push rod mechanism comprises lower push rod, the back-moving spring of a top stem casing and a cushioning effect, all lobed drift sheet on upper punch and the low punch, upper punch and upper slide bar are fixedly linked, low punch and lower push rod are fixedly linked, it is characterized in that: the workbench of described forcing press also comprises the former cover, former guiding mechanism and microsprings mechanism, the former cover is inlaid in the workbench, the former guiding mechanism is inlaid in the inner chamber of former cover, and the described alloy mold of support, microsprings mechanism is installed between former guiding mechanism outer bottom and the former cover inner bottom surface vertically, its upper end support former guiding mechanism, the lower end places on the former cover inner bottom surface.
2. a kind of pinpoint lever press according to claim 1, it is characterized in that: described former cover is step-like tubular construction for the inner chamber of bottom surface perforate, it has the two-stage step surface, the interior wide size that makes former sleeve body inner chamber top is greater than the wide size that is positioned at the cylinder lumen bottom, form the one-level ring-shaped step between the two, the top inner chamber of described former cover is used for setting-in former guiding mechanism; Described former guiding mechanism is by the outer ring, ball and inner ring are formed, ball is positioned at, between the outer ring, in, the axis of outer ring overlaps and constitutes the axis of former guiding mechanism, inner ring moves axially the outer ring relatively, wherein, the outer ring has the tubular of the outline that cooperates with the top inner chamber profile phase of former cover and is embedded in the inner chamber of former cover top, its bottom surface is pressed on the aforesaid one-level annular table terrace, described inner ring also has tubular construction, but its inner barrel laterally is provided with the gripper shoe of center drilling, the described alloy mold of last end face support of this gripper shoe, the inner chamber that described inner ring is positioned at the gripper shoe top has the profile that matches with the alloy mold outline, is used for the setting-in alloy mold; Described microsprings mechanism comprises upper junction plate, lower connecting plate, in the connection, the connection handware of lower connecting plate and be placed in regulating spring on the handware, wherein, on, lower connecting plate all has for connecting the connecting hole that handware passes, regulating spring is installed in by connecting handware, between the lower connecting plate, upper junction plate is inlaid in the bottom of former guiding mechanism inner ring, bottom surface of end face and described inner ring cross-brace plate joins on it, lower connecting plate is positioned on the inner bottom surface of former cover, the central opening of described former cover is used for low punch and passes, around centre bore, then have a plurality of perforation, be used to hold the connection handware that protrudes from the lower connecting plate bottom surface.
3. a kind of pinpoint lever press according to claim 2, it is characterized in that: the madial wall of described outer ring vertically has a plurality of arc rolling ball tracks, the lateral wall of corresponding inner ring also has a plurality of arc rolling ball tracks, and both formations take up the ball hole of ball.
4. a kind of pinpoint lever press according to claim 3 is characterized in that: described ball hole is 4 or 6 or 8 or 10, and a plurality of ball holes are along the circumferential direction uniform.
5. a kind of pinpoint lever press according to claim 2 is characterized in that: described dog screw and regulating spring are 6 covers or 8 covers or 10 covers or 12 covers, and every cover dog screw and regulating spring are along the circumferential direction uniform.
6. pinpoint lever press according to claim 1, it is characterized in that: described alloy mold is the projective table type mould, the top that the shoulder of alloy mold is made mould by annular trim ring and pressure strip is fixed, this annular trim ring has the profile that matches with the outline of alloy mold boss, the upper surface of this annular trim ring is mutually concordant with the upper surface of alloy mold boss, and it is mutually concordant with the upper surface of the die sleeve plate of forcing press, pressure strip is pressed on the trim ring, so that by trim ring mould is pressed on the former guiding mechanism.
7. pinpoint lever press according to claim 1, it is characterized in that: described lower push rod is a cylindrical bar, being fixed on the guide hole that the top stem casing of workbench below cooperates with lower push rod accordingly is circular hole also, and the straight key and the keyway of guiding is set between the two.
8. pinpoint lever press according to claim 1, it is characterized in that: described upper punch links to each other by the card cap with upper slide bar, the card cap has internal thread, cooperate installation with the external screw thread of upper slide bar bottom relative set, the card cap has a slot perpendicular to the upper punch direction of insertion, upper punch inserts in the slot of card cap, is tightened on upper slide bar by the card cap again; Described low punch also links to each other by the card cap with lower push rod, the card cap has internal thread, cooperates installation with the external screw thread of lower push rod top relative set, and the card cap has a slot perpendicular to the low punch direction of insertion, low punch inserts in the slot of card cap, is tightened on lower push rod by the card cap again.
9. pinpoint lever press according to claim 1 is characterized in that: described upper punch is made up of punch holder and drift sheet, and wherein punch holder is for being with the tabular of installing hole, and its middle part has the slot hole of plug-in mounting drift sheet; Described low punch is made up of punch holder and drift sheet, and wherein punch holder is for being with the tabular of installing hole, and its middle part has the slot hole of plug-in mounting drift sheet.
10. pinpoint lever press according to claim 9 is characterized in that: the drift sheet on the described upper and lower drift is respectively in 3～7 scopes.
11. according to the arbitrary described a kind of pinpoint lever press of claim 1 to 10, it is characterized in that: described forcing press also comprises the guide pillar mechanism with guide function, this guide pillar mechanism is made up of guide pillars and bushes, wherein guide pillar is installed on the fuselage, its axis is parallel with the axis of upper slide bar, guide pin bushing is " L " type structure, it vertically partly is installed on the upper slide bar, its horizontal component has the guide pillar hole that can supply guide pillar to pass, and drives guide pin bushing when upper slide bar moves up and down and moves up and down along guide pillar.
12. a kind of pinpoint lever press according to claim 11 is characterized in that: the two-sided gap between described guide pillars and bushes is 0.02～0.03mm.
13. a kind of pinpoint lever press according to claim 12, it is characterized in that: described guide pin bushing links to each other by screw with upper slide bar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200552888U CN201070671Y (en) | 2007-08-08 | 2007-08-08 | Accurately positioning lever press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200552888U CN201070671Y (en) | 2007-08-08 | 2007-08-08 | Accurately positioning lever press |
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| CN201070671Y true CN201070671Y (en) | 2008-06-11 |
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| CNU2007200552888U Expired - Fee Related CN201070671Y (en) | 2007-08-08 | 2007-08-08 | Accurately positioning lever press |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091836A (en) * | 2010-12-15 | 2011-06-15 | 贵州大学 | Precise control device for rolling force of lower fillet of high-strength bolt head |
| CN107649865A (en) * | 2017-11-10 | 2018-02-02 | 江苏森威集团飞达股份有限公司 | Novel fixture and its clamping method of a kind of drive gear with pressure brass |
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2007
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091836A (en) * | 2010-12-15 | 2011-06-15 | 贵州大学 | Precise control device for rolling force of lower fillet of high-strength bolt head |
| CN107649865A (en) * | 2017-11-10 | 2018-02-02 | 江苏森威集团飞达股份有限公司 | Novel fixture and its clamping method of a kind of drive gear with pressure brass |
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