CN100509373C

CN100509373C - Filling regulating and limiting device for powder forming machine

Info

Publication number: CN100509373C
Application number: CNB200510049406XA
Authority: CN
Inventors: 严培义; 严俏敏
Original assignee: Individual
Current assignee: Yan Qiaomin
Priority date: 2005-03-17
Filing date: 2005-03-17
Publication date: 2009-07-08
Anticipated expiration: 2025-03-17
Also published as: CN1669784A

Abstract

A powder forming machine filling adjustment limit device, which is composed of a cross arm lifting mechanism and a mold base filling adjustment mechanism connected to the cross arm. The mold base filling adjustment mechanism consists of two guide seats fixed on the cross arm, and a machine under the cross arm. A fixed seat is fixed on the frame, and the piston rod is slidably fitted in the cylinder body fixed with the cylinder head and the oil pipe to form an adjustment mechanism. There is a moving distance between the piston rod and the cylinder body. Composed of worm and worm gear connections. The independent cross arm structure is used to replace the original assembly consisting of the cross arm and the swing arm. The structure is simple and easy to process. The cylinder drives the cross arm to move up and down, with uniform force and good stability, and the oil pressure in the cylinder is adjusted. From no pressure to pressure, and make the oil pressure greater than the upward ejection force of the filling cylinder, the cross arm drives the female mold to descend for more filling, on the contrary, the female mold rises for less filling, suitable for installation and use on large-tonnage molding machines. Pressed products with multiple steps and complex shapes.

Description

Filling regulating and limiting device for powder forming machine

Technical field

The present invention relates to the vitals in a kind of machining equipment, especially for control, regulate what filling regulating and limiting device for powder forming machine of female die of powder forming machine charging quantity.

Background technology

The powder forming function is disposable to suppress precision height, powdered metal parts that fineness is good, favored by enterprise.

The filling body of being mentioned among the CNZL0228756.1 " powder former ", be to drive the transverse arm that is mated by swing arm to do, parallel down moving, automatically finish the filling of powder and the automatic demoulding of stampings, rack-mounted swing arm, one side of its swing arm is an axle, side is an arm in addition, pinch roller also need be installed on the arm and be connected with the wheel pressing shaft of bearing, drive the transverse arm motion by pinch roller, this mechanism structure complexity, volume is big, difficult processing, the difficult installation, and only a side of transverse arm is stressed when work, stressed monolateral, discontinuity, so job stability is relatively poor, it is lower only to suppress precision, shape is the stampings of rule.

Summary of the invention

Technical problem to be solved by this invention is: a kind of filling regulating and limiting device for powder forming machine is provided, its simple in structure, easy processing is installed, stressed even, good stability during work, and can regulate the size of charging quantity and spacing, suit especially on large tonnage powder forming machine, to install, use, be used to suppress the stampings of difformity, thickness.

The present invention addresses the above problem the technical scheme that is adopted: filling regulating and limiting device for powder forming machine, constituted by the mould bases filling governor motion that connects on transverse arm elevating mechanism and the transverse arm, wherein the two ends of transverse arm are connected with push rod in the transverse arm elevating mechanism, and connect centering block with bearing pin, centering block cooperates with link stopper on push rod and the link stopper case respectively, link stopper case and filling cylinder are fixed on the bottom surface of frame, the filling cylinder cooperates with transverse arm, cylinder fixing on the transverse arm is connected with centering block, the transverse arm intermediate throughholes cooperates with lower main axis, described lower main axis upper end is connected with projection, guide pin bushing, fix two guide holders on the transverse arm in the described mould bases filling governor motion, install and fix seat on the frame under the transverse arm, governor motion cooperates with fairlead in the guide holder, and and the worm screw in the holder, worm gear connects, and the piston rod cunning fits over and is fixed with cylinder cap in the described governor motion, in the cylinder body of oil pipe, and piston rod can be in cylinder body on, move down.

Compared with prior art, the invention has the advantages that 1, replace the reason transverse arm with cross arm structure independently, the combining structure that swing arm is worked in coordination and constituted, cancelled swing arm and on parts, make press rods in the force transmission mechanism, going out the terminal of tringle directly cooperates with transverse arm, and directly drive on the transverse arm work, move down, removed intermediate link, therefore structure is simpler, easily processing, easily install, 2, former swing arm is mounted on the frame of transverse arm one side, unbalance stress when therefore working, poor stability, and now transverse arm before, be fixed with the guide holder of symmetry on the rear surface, on the governor motion of two symmetries is done in guide holder, move down, and on the drive transverse arm, parallel down moving, both sides are simultaneously stressed when therefore working, stressed even, so good stability, suitable especially large-tonnage powder former is installed, use, 3, cooperate the mould bases filling governor motion that constitutes with cylinder body because of having by piston rod, make former can finish many fillings or few filling, thereby available this device process different size, the stampings of complicated shape or thickness.

Description of drawings

Fig. 1, structural representation of the present invention.

The vertical view of Fig. 2, Fig. 1.

The A of Fig. 3, Fig. 1-A amplification view.

Fig. 4, user mode figure of the present invention (powder former general assembly drawing).

Fig. 5, user mode reference diagram (many fillings do not have pressure).

Fig. 6, user mode reference diagram (being filled with pressure) more.

Fig. 7, user mode reference diagram (being filled with pressure less).

Fig. 8, user mode reference diagram (few filling does not have pressure).

The specific embodiment

Below in conjunction with accompanying drawing embodiments of the invention are further described:

Transverse arm elevating mechanism part: through hole is arranged in the middle of the transverse arm 14, two ends have outwardly open rectangular through slot, with pivot pin 6 centering block 3 is connected on the transverse arm in the groove, and centering block 3 can be swung around pivot pin in groove, centering block upper lobes place, one end of cylinder 13 piston rods of placing with screw and a horizontal direction is connected, the end in addition of cylinder 13 cylinder bodies is screwed on transverse arm 14, and there is a block case 15 that is screwed on frame 19 bottom surfaces centering block 3 belows, block case 15 upper surfaces, have one to cooperate notched block 2 with the upright arm of centering block 3, also be installed with cushion block 4 on the two ends of transverse arm 14, and have a push rod 5 to pass transverse arm 14 and cushion block 4, and stretch out outside the cushion block its upper end, and the lower end cooperates with the horizontal arm of centering block, go back vertical fixing on the frame 19 of two ends below two filling cylinders 1 are arranged, piston rod on it inserts in the through hole on the termination, transverse arm below, as Fig. 1, shown in Figure 2.

Be equipped with big, following little lower main axis 12 in transverse arm 14 intermediate throughholes, lower main axis 12 upper end outer surfaces tightly are with the guide pin bushing 9 of band through hole, be fixed with trapezoidal projection 10 on the end face worm gear case 11, the projection 10 on transverse arm 14 usefulness lower main axis 12 tops links into an integrated entity with the Baltimore groove on the mould framing plate, guide pin bushing 9 utilizes that through hole is screwed on frame 19, as shown in Figure 4 on it.

Mould bases filling governor motion:

Cylinder cap 8-1 upper surface has through hole, and a pore is arranged on the sidewall.

Cylinder body 8-3 has the cylindrical of ladder hole for middle, and the oil pipe 8-4 that is interlinked to the outside with sidewall is arranged in the sidewall.

There are screw thread and keyway 8-5 in piston rod 8-2 lower end.

Piston rod 8-2 and cylinder body 8-3 are slided and are made into one, and with screw cylinder cap 8-1 and cylinder body 8-3 are fixed into whole governor motion 8.

The centre on the forward and backward surface of transverse arm 14, with two guide holders 7 of screw difference fixed symmetrical, the lower end of guide holder 7 scala media trapezoidal holes connects fairlead 7-2, and the upper end is connected with semi-round ball fairlead 7-1, and two fairleads cooperate with piston rod 8-2, as shown in Figure 3.

Through hole is arranged in the middle of the holder 16, mutually perpendicular hole is all arranged on two arms, cooperate the inside and outside worm gear 16-2 that tooth is all arranged in the upright opening, install and worm gear engaged worm 16-3 in the lateral aperture, the cover plate 16-1 that through hole is arranged in the middle of being screwed on one end face of upright opening, the cover plate through hole has key 16-4 on the edge, worm screw 16-3 one end stretches out outside the holder 16, be connected with sprocket wheel 17 on its termination, holder 16 is screwed on the bottom surface of frame 19, and over against the below of lower main axis 12, as Fig. 3, shown in Figure 2.

With two governor motions, 8 sliding the fitting in the guide holder 7 that assemble, on the worm gear 16-2 that is threaded in the holder 16, as shown in Figure 3.

During use, connect with the mains earlier by motor 18 by sprocket wheel 17, driving worm screw 16-3 rotates, and make with the worm gear 16-2 of its engagement and rotate, at this moment just last with the piston rod 8-2 of worm gear 16-2 engagement, move down, the distance that moves is according to the thickness decision of stampings, the cylinder body 8-3 that piston rod 8-2 drive simultaneously is fixed together with it moves, because of having keyway 8-5 and cover plate 16-1 to go up key 16-4 location on the piston rod 8-2, it can only be gone up, move down, and can not rotate, thereby guarantee that governor motion 8 moves up and down synchronously, the former height regulates rear motor 18 and stops operating, and just can produce in batches.

After the stampings demoulding, going out under pattern cam 20 drives, going out tringle 21 moves down, when the cushion block promotion push rod 5 that goes out on the tringle end moves down, and the horizontal arm that promotes on the centering block 3 rotates along bearing pin 6 downwards, make centering block 3 break away from stopping of link stopper 2 on the link stopper casees 15, decontrol transverse arm 14, at this moment filling cylinder 1 bottom air inlet upwards promotes transverse arm 14 and moves up, the guide holder 7 that is fixed together with transverse arm just moves up, when the semi-round ball fairlead 7-1 on it runs into the lower surface of cylinder body 8-3, transverse arm is obstructed and stops to move, the lower main axis 12 that links together with transverse arm when moving on the transverse arm also upwards moves with transverse arm, and the former 22 on the connected mould bases also upwards moves just can carry out the filling operation, and this is the planar products of compacting simple shape.

If will suppress inclined-plane or many steps complex product, at this moment to advance pressure oil by the oil pipe 8-4 on the cylinder body 8-3, cylinder body is become from no pressure pressure is arranged, as shown in Figure 5, and make pressure greater than filling cylinder 1 make progress ejecting force, then cylinder body moves down 2～10mm distance under the pressure oil effect, up to the upper surface of meeting piston rod 8-2, or else can descend, descended and the also parallel 2～10mm that moves down of drive transverse arm by cylinder body 8-3, the former 22 that is driven on the mould bases by transverse arm moves down 2～10mm distance, at this moment, dash powder that 23 motionless formers 22 can fill down and highly be many fillings, as shown in Figure 6 with regard to many 2～10mm.

If will lack filling, at this moment make cylinder body become no pressure from pressure is arranged, as shown in Figure 7, make oily pressure release in the cylinder body 8-3, because of regulating in advance, piston rod 8-2 can not move, at this moment cylinder interior pressure is less than the pressure that ejects of filling cylinder 1, cylinder body 2～10mm distance that moves up then, run into the lower surface of piston rod 8-2 up to cylinder body, can not move again, drive transverse arm 14 upwards translations by cylinder body simultaneously, the former 22 that transverse arm drives again on the mould bases upwards moves 2～10mm, dash the 23 motionless charging quantity minimizings that make in the former down, as shown in Figure 8.

Claims

1, a kind of filling regulating and limiting device for powder forming machine, constituted by the mould bases filling governor motion that connects on transverse arm elevating mechanism and the transverse arm, wherein the two ends of transverse arm (14) are connected with push rod (5) in the transverse arm elevating mechanism, and connect centering block (3) with bearing pin (6), centering block cooperates with link stopper (2) on push rod (5) and the link stopper case (15) respectively, link stopper case (15) and filling cylinder (1) are fixed on the bottom surface of frame (19), filling cylinder (1) cooperates with transverse arm (14), cylinder (13) fixing on the transverse arm is connected with centering block (3), the transverse arm intermediate throughholes cooperates with lower main axis (12), described lower main axis (12) upper end is connected with projection (10), guide pin bushing (9), it is characterized in that fixing two guide holders (7) on the transverse arm (14) in the described mould bases filling governor motion, install and fix seat (16) on the frame (19) under the transverse arm (14), governor motion (8) cooperates with fairlead in the guide holder (7), and and the worm screw (16-3) in the holder (16), worm gear (16-2) connects, sliding the fitting over of piston rod (8-2) is fixed with cylinder cap (8-1) in the described governor motion (8), in the cylinder body (8-3) of oil pipe (8-4), and piston rod (8-2) can be in cylinder body (8-3) on, move down.

2, filling regulating and limiting device for powder forming machine according to claim 1 is characterized in that cylinder cap (8-1) upper surface has through hole, has a pore on the sidewall; Cylinder body (8-3) has the cylindrical of ladder hole for middle, and the oil pipe (8-4) that is interlinked to the outside with sidewall is arranged in the sidewall; There are screw thread and keyway (8-5) in piston rod (8-2) lower end, and piston rod (8-2) is slided with cylinder body (8-3) and is made into one, and with screw cylinder cap (8-1) and cylinder body (8-3) is fixed into whole governor motion (8).

3, filling regulating and limiting device for powder forming machine according to claim 1, the centre that it is characterized in that the forward and backward surface of transverse arm (14), two guide holders (7) with screw difference fixed symmetrical, the lower end of guide holder (7) scala media trapezoidal hole connects fairlead (7-2), the upper end is connected with semi-round ball fairlead (7-1), and two fairleads cooperate with piston rod (8-2).

4, filling regulating and limiting device for powder forming machine according to claim 1, it is characterized in that in the middle of the holder (16) through hole being arranged, mutually perpendicular hole is all arranged on two arms, in cooperating in the upright opening, the outer worm gear (16-2) that tooth is all arranged, install and worm gear engaged worm (16-3) in the lateral aperture, the cover plate (16-1) that through hole is arranged in the middle of being screwed on one end face of upright opening, key (16-4) is arranged on the cover plate through hole edge, worm screw (16-3) end stretches out outside the holder (16), be connected with sprocket wheel (17) on its termination, holder (16) is screwed on the bottom surface of frame (19), and over against the below of lower main axis (12).

5, filling regulating and limiting device for powder forming machine according to claim 1 is characterized in that governor motion (8) cunning fits in the guide holder (7), on the worm gear (16-2) that is threaded in the holder (16).

6,, it is characterized in that the keyway (8-5) on the piston rod (8-2) cooperates with key (16-4) on holder cover plate (16-1) the through hole edge according to claim 1 or 4 described filling regulating and limiting device for powder forming machine.