CN203578771U

CN203578771U - Powder sintering part shaping die holder core rod adjusting device

Info

Publication number: CN203578771U
Application number: CN201320498512.6U
Authority: CN
Inventors: 严培义
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-15
Filing date: 2013-08-15
Publication date: 2014-05-07
Anticipated expiration: 2023-08-15

Abstract

Provided is a powder sintering part shaping die holder core rod adjusting device. A guide pillar and a mold stripping rod connect an upper punching plate, a female mould plate and a lower punching plate into a whole to be in cooperation with a die holder dead plate fixedly provided with a cylinder; the die holder dead plate is fixed on the side wall of a rack; a core rod is installed on a core rod piston and traverses the cylinder, the die holder dead plate, the lower punching plate and a lower punch to be in connection with the female mould plate; the top of the core rod is of a stepped cylindrical shape, and the end is corresponding and cooperating with the stop dog fixed in the rack and used for adjusting an elevating mechanism in a seat, or the end is provided with a telescoping rod to be corresponding and cooperating with a positioning block on the rack. The trimmer is provided with the core rod with an adjusting function, allowing strokes to be adjustable and move up and down for many times; original once demoulding is changed to twice demoulding, thereby substantially minimizing binding force for the core rod in demoulding, avoiding damage to the core rod caused by abrasion, tearing, disconnecting, etc., prolonging the service life of the core rod, shaping products with different inner hole shapes and enlarging the use scope of the trimmer.

Description

Powder metallurgy part sizing die frame plug adjusting device

Technical field

The utility model relates to the powder metallurgy part sizing die frame plug adjusting device that carries out shaping use after the vitals on a kind of powder metallurgy part trimmer, particularly powder compaction product sintering.

Background technology

According to the production technology of powder compaction product, pulverulent product also needs could use after stablizing through sintering shaping, sizing, on existing powder metallurgy part sizing die frame, the stroke of plug used is fixed, can not be regulated, plug is with the disposable demoulding of product, because former, low punch, product after product shaping pack tightly at mandrel outer always, during the demoulding, plug will overcome very large binding force could throw off low punch, ejecting product, so plug is easy to wear and tear, break, damage.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of powder metallurgy part sizing die frame plug adjusting device is provided, the impulse stroke of plug is adjustable and can move up and down, reduce the suffered binding force of plug during the demoulding, guarantee plug not easy damaged also extend service life of plug.

The technical scheme in the invention for solving the above technical problem is: powder metallurgy part sizing die frame plug adjusting device, links into an integrated entity with the guide pillar of guide pin bushing the upper punching and the negative template that are fixed with upper punch; The lower punching of low punch is installed, by going out tringle, links into an integrated entity with the upper punching and the negative template that are fixed with upper punch, or by under go out tringle and be connected with the depanning push rod on trimmer, and coordinate with the mould bases fixed head that is fixed with cylinder; Described mould bases fixed head is arranged on the sidewall of frame, has respectively upper and lower chamber tracheae on described mould bases fixed head, cylinder, and plug is arranged on plug piston, is connected on negative template successively through cylinder, mould bases fixed head, lower punching, low punch;

Described plug top is that ladder is cylindrical, mandrel tip be fixed on frame bottom surface, be arranged on block correspondence, cooperation on elevating mechanism in adjusting seat;

Described plug top is that ladder is cylindrical, and mandrel tip is installed expansion link and is fixed on that locating piece on frame bottom surface is corresponding, cooperation.

Compared with prior art, the utility model has the advantage of: increased the adjustment function of plug on sizing die frame, the not only stroke of adjustable plug, also can make plug repeatedly go up, lower movement, thereby the disposable demoulding of plug and product is modified into twice demoulding, the outer casement of product-stripping mechanism for the first time, product departs from negative template, without External Force Acting, product is expanded, at this moment the suffered drag reduction of plug is a lot, the interior casement of product-stripping mechanism for the second time, so at this moment product only needs to overcome that to depart from the power of low punch easier, because plug has reduced binding force, thereby just avoid the wearing and tearing of plug, tear, split off equivalent damage, extended service life, step is made in plug upper end in addition, can be used for the product of hole shape in the various differences of shaping, expanded the scope of application of trimmer.

Accompanying drawing explanation

The structural representation (putting shaping product blank) of Fig. 1, the utility model the first scheme.

The structural representation (upper punch presses down) of Fig. 2, the utility model the first scheme.

The structural representation (plug rising, the outer hole demoulding of product) of Fig. 3, the utility model the first scheme.

The structural representation of Fig. 4, the utility model the first scheme (plug moves down, the demoulding of product endoporus).

The structural representation (taking product away stand-by) of Fig. 5, the utility model the first scheme.

The structural representation (putting shaping product blank) of Fig. 6, the utility model alternative plan.

The structural representation (upper punch presses down) of Fig. 7, the utility model alternative plan.

The structural representation (plug rising, the outer hole demoulding of product) of Fig. 8, the utility model alternative plan.

The structural representation of Fig. 9, the utility model alternative plan (plug moves down, the demoulding of product endoporus).

The structural representation (taking product away stand-by) of Figure 10, the utility model alternative plan.

Figure 11, the utility model are used state reference map.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.

Upper punch 2 is screwed on the lower surface of upper punching 1, and upper punching 1 is screwed on the lower surface of shaping power slide block 23, and the 3 liang of diagonal angles of guide pillar that are connected with guide pin bushing 4 are installed, and upper punching 1, negative template 5 are connected into entirety.

In the middle of mould bases fixed head 10, have through hole, in the middle of a sidewall, have gathering sill 101, upper surface periphery is fixed with undershoot backing plate 9, and fixing cylinder 12 and epicoele tracheae 11 with cavity of resorption tracheae 13 in the middle of lower surface are arranged on the sidewall of frame (figure does not draw).

The upper end that goes out tringle 21 is fixed on punching 1, and what two diagonal angles were installed goes out tringle 21 lower ends respectively through negative template 5 and lower punching 8, and upper and lower punching, negative template are connected into entirety, goes out the also depanning height adjusting block 20 of mounting limit effect of tringle lower end.

Upper end is that step-like plug 6 is arranged on plug piston 14, and plug upper end is connected on negative template 5 through cylinder 12, mould bases fixed head 10, lower punching 8, low punch 7 respectively.

Elevating mechanism is connected on worm gear 16 inner bolt holes by block 15 use external screw threads, worm gear 16 matched in clearance are in adjusting seat 18, adjusting seat is screwed on the bottom surface that is arranged on frame 19, worm gear 16 engages with worm screw 17, one end of worm screw is provided with bearing, through adjusting seat 18 connection of rotating power sources, form (figure do not draw), plug 6 ends be fixed on frame bottom surface, be arranged on block 15 correspondences, cooperation on the interior elevating mechanism of adjusting seat 18.

On block, also has strong groove, in strong groove, putting into strong 26 coordinates with worm gear 16 inner bolt holes, during adjusting, make block 15 only can in the worm gear rotating, move up and down, can not rotate, block 15 is conflicted and arrive plug 6, by the changeless plug of stroke, coordinated with the block of adjustable movement, form the first scheme of plug adjusting device.

Expansion link 24 is screw rod, expansion link 24 is installed in plug 6 lower surface screws, and is fixed on that locating piece 25 on frame bottom surface is corresponding, cooperation, with the collapsing length of adjusting screw(rod), adjust the length of plug stroke, form the alternative plan of plug adjusting device, as shown in Fig. 6～Figure 10.

Reach designing requirement by the distance that above-mentioned either party's case regulates between plug and block or fixed block.

During work: under the effect of sizing die frame power source, slide block 23 moves upward and drives the upper punching 1 linking into an integrated entity with it with upper punch, and with upper punching 1 connect into entirety the tringle 21 that goes out move up, depanning height adjusting block 20 on it just heads on and drives lower punching 8, low punch 7 to rise simultaneously, upper punch 2 on upper punching 1 up moves until top dead centre stops, at this moment low punch 7 also just exceeds negative template 5 to top dead center position, product blank 22 that shaping is used ' just can be placed in negative template, the upper plane place of upper punch, as shown in Figure 1.

Along with declining, inserts in negative template 5 dynamic action upper punch 2, product blank 22 ' make is pressed in the lower surface of upper punch 2, and it and then declines, the lower end that goes out tringle is also inserted in gathering sill 101 and is moved down, when low punch 7 drops to lower dead center, upper punch also declines and and then arrives lower dead center, the plug block 15 of conflicting, at this moment upper punch, plug, low punch compress shaping product blank, as shown in Figure 2.

When upper punch 2 will be to rising after after bottom dead center, and rise and drive out tringle 21 to rise by upper punching 1, the depanning height adjusting block 20 going out on tringle also rises, drive lower punching 8 to rise simultaneously, the low punch linking into an integrated entity with lower punching also and then rises, when upper punch rises to top dead centre, low punch is also just exposed at the upper plane of negative template, at this moment the product 22 of plug after being shaped holds, from cavity of resorption tracheae 13 air inlets of cylinder 12, gas withstands plug piston 14 and moves up, plug 6 just heads on product 22 and rises together, at this moment block is left in plug lower end, along with the rising of plug is released product outside negative template 5, for the demoulding is for the first time the de-outer casement of product 22, at this moment because the external diameter without External Force Acting product 22 expands, the power that simultaneously hugs plug also greatly reduces, as shown in Figure 3.

Again from epicoele tracheae 11 air inlets of cylinder 12, pressed gas moves down it to pressing down plug piston 14, when the pressure of plug piston is greater than product endoporus and hugs the power of plug, plug just moves down, making product 22 demoulding is for the second time the de-interior casement of product, at this moment upper punch is got back to top dead centre, product 22 leaves plug 6, and completely exposed at negative template upper surface, at this moment plug 6 is also got back to lower dead center, conflict and arrive block 15, as shown in Figure 4, take product 22 away, as shown in Figure 5, complete trimming one time, then the shaping of preparing next product.

In like manner, adopt alternative plan to make to be fixed on locating piece in frame motionless, adjustable telescopic rod control plug length coordinates with locating piece, above the length of telescopic bar of plug adjustable, the plug adjusting device of the motionless formation of locating piece below regulates.

The lower dead center height of available adjustment upper punch, guarantee the product of shaping differing heights, the top of plug is made into step, in available adjusting seat 18, connect the height of block, product is pressed and carries out shaping with the low punch in upper punch, shoulder core and negative template, reach the required degree of depth of step in plug, can be used for making the compacted products with hole shape in various differences.

According to the needs of different trimmer structures, can select Figure 11 structure, at this moment go up punching 1 and negative template 5 use guide pillars 3, guide pillar 4 are linked to be entirety, with under go out tringle 21 ' replace the effect of tringle 21, be fixed on the lower surface of lower punching 8, and under go out tringle 21 ' be connected with the depanning push rod on trimmer (figure does not draw), use be used as power punching and plug under the jack-up of source of the depanning push rod on trimmer.

Claims

1. a powder metallurgy part sizing die frame plug adjusting device, links into an integrated entity the upper punching (1) that is fixed with upper punch (2) with the guide pillar (3) of guide pin bushing (4) with negative template (5); The lower punching (8) of low punch (7) is installed, by going out tringle (21), link into an integrated entity with the upper punching (1) and the negative template (5) that are fixed with upper punch (2), or by under go out tringle (21 ') and be connected with the depanning push rod on trimmer, and coordinate with the mould bases fixed head (10) that is fixed with cylinder (12); Described mould bases fixed head (10) is arranged on the sidewall of frame (19), on described mould bases fixed head (10), cylinder (12), there is respectively upper and lower chamber tracheae (11,13), it is upper that plug (6) is arranged on plug piston (14), is connected on negative template (5) successively through cylinder (12), mould bases fixed head (10), lower punching (8), low punch (7); It is characterized in that:

Described plug (6) top is that ladder is cylindrical, plug (6) end be fixed on frame (19) bottom surface, be arranged on that block (15) on interior the elevating mechanism of adjusting seat (18) is corresponding, cooperation;

Described plug (6) top is that ladder is cylindrical, and plug (6) end is installed expansion link (24) and is fixed on that locating piece (25) on frame (19) bottom surface is corresponding, cooperation.

2. powder metallurgy part sizing die frame plug adjusting device according to claim 1, is characterized in that described expansion link (24) is screw rod, is arranged in the screw of plug (6) lower surface.

3. powder metallurgy part sizing die frame plug adjusting device according to claim 1, it is characterized in that described elevating mechanism is connected on worm gear (16) inner bolt hole by block (15) external screw thread, worm gear (16) matched in clearance is in adjusting seat (18), adjusting seat (18) is screwed on the bottom surface that is arranged on frame (19), worm gear (16) engages with worm screw (17), one end of worm screw (17) is provided with bearing, through adjusting seat (18) and rotational power source, connects and composes.

4. powder metallurgy part sizing die frame plug adjusting device according to claim 1, is characterized in that the upper in addition strong groove of described block (15), puts into strong (26) and coordinate with worm gear (16) inner bolt hole in strong groove.