CN2691726Y - Long strip shaped convex rib aluminium alloy patternless slope isothermal precision shaping mould - Google Patents

Abstract

The utility model relates to a long strip shaped convex rib aluminium alloy patternless slope isothermal precision shaping mould which is characterized in that: a combination female mould, a lower mould plate, an ejector beam, a female mould seat, guide pins, the backing plate of the female mould, the insert block of the female mould, a male mould, a male mould sleeve, the backing plate of the male mould, an upper mould plate, a pin, fastening screws, gaskets and a square key are included; the inner mould surface of the combination female mold is a slope, the lower part of the inner mould is provided with the backing plate of the female mould, and the insert block of the female mould is arranged in the backing plate of the female mould; the backing plate of the female mould is arranged on the female mould seat, and the lower part of the backing plate of the female mould is provided with two guide pins; the guide holes are arranged on the female mould seat, and the guide pins are in sliding fit with the guide holes on the female mould seat; the combination female mold and the and female mould seat are separately positioned and fixedly connected with the lower mould plate through the square key, the fastening screw and the gasket; the male mould is arranged in the male mould sleeve on the lower part of the male mould plate, and is positioned and fixedly connected with the upper mould plate through the pin, the fastening screw, the gasket, the male mould sleeve and the backing plate of the male mould.

Description

Isothermal Precision Forming Die for Elongated Convex Rib Aluminum Alloy Without Die Slope

1. Technical field

The utility model relates to an isothermal precision forming die for an aluminum alloy part, in particular to an isothermal precision forming die for an aluminum alloy part with a long-strip convex rib without a draft slope.

2. Background technology

Long-strip aluminum alloy parts with convex ribs are generally complex in shape, and precision forming is difficult. Usually, they are formed by hot die forging, but the mold error is large during forming, and the thermal shrinkage is unstable, resulting in a large difference in the accuracy of the shape and size, and there is a draft angle. Therefore, the shape needs to be machined to meet the design requirements of the drawings, resulting in the difference in color between the machined surface and the non-machined surface of the finished product, thereby increasing the manufacturing cost of the product and reducing the product quality.

3. Contents of the invention

The purpose of this utility model is to provide a precision forming process for long-strip convex-rib aluminum alloy products without draft angle, high dimensional accuracy, low surface roughness, and consistent surface color, which improves material utilization and product quality. The isothermal precision molding die for long-strip convex box lead alloy parts with no draft slope and low product manufacturing cost.

The purpose of this utility model is achieved by adopting such a technical scheme, a long-strip convex rib aluminum alloy without draft slope isothermal precision forming mold, which is characterized in that it includes a combined die, a lower template, a ejector rod, a concave Die base, guide pin, die backing plate, die insert, punch, punch sleeve, punch backing plate, upper template, column pin, fastening screw, washer, square key; the inner mold surface of the combined die is Inclined surface, the lower part of the inner mold is provided with a die backing plate, the die insert is placed on the die backing plate in the combined die, the die backing plate is placed on the die seat, and the lower part of the die backing plate has two guides There is a guide hole on the die base, and the guide pin is slidingly matched with the guide hole on the die base. The combined die and die base are fixedly connected to the lower template through square keys, fastening screws and washers respectively; It is located in the punch sleeve at the lower part of the punch backing plate, and is positioned and fixedly connected with the upper template through the pin, the fastening screw, the washer, the punch sleeve, and the punch backing plate.

When in use, the utility model is installed on a hydraulic press, the utility model and the blank are heated and kept warm, and when the requirements of isothermal forming are met, the concave mold and the convex mold of the utility model are lubricated, and the blank is put into the concave mold insert and started Press, the punch presses the billet to make the billet fill the cavity and form at a controllable deformation speed. After forming, the punch lifts up, and the ejector rod lifts up the backing plate of the die at the same time, and lifts up under the guidance of the guide pin. The die insert moves upward along the inner inclined surface of the combined die, and at the same time separates left and right to take out the workpiece. Finally, the die insert is clamped downward along the inner slope of the combined die under the action of gravity. After removing the residue in the die insert, the convex and concave dies are lubricated again, and the above-mentioned forming process is repeated to form a long strip of aluminum alloy. Continuous isothermal forming operation of blanks. The product processed and formed by the utility model has no draft angle, high processing size precision, small tolerance range, smooth surface, low roughness, no need for mechanical processing, so the surface color is consistent, and the yield rate and material utilization of the product are improved. rate, reducing the manufacturing cost of the product.

4. Description of drawings

Accompanying drawing is the structural representation of the utility model.

In the figure: 1-combined die 2-lower template 3-ejector rod 4-die base 5-guide pin 6-die backing plate 7-die insert 8-convex die 9-convex die sleeve 10-convex Mold backing plate 11-upper template 12-locating pin 13, 15, 18-fastening screw 14, 16, 19-washer 17, 20-square key

5. Specific implementation

Embodiment of the present utility model is described below with reference to accompanying drawing. As shown in the accompanying drawings, a strip-shaped convex-rib aluminum alloy without draft isothermal precision molding die, including a combined die 1, a lower die plate 2, an ejector rod 3, a die base 4, a guide pin 5, Die backing plate 6, die insert 7, punch 8, punch sleeve 9, punch backing plate 10, upper template 11, column pin 12, fastening screws 13, 15, 18, washers 14, 16, 19 , square keys 17, 20; the inner mold surface of the combined die 1 is a slope, and the lower part of the inner mold is provided with a die backing plate 6, and the die insert 7 is placed on the die backing plate 6 in the combined die 1, and the die The die backing plate 6 is placed on the die base 4, and there are two guide pins 5 at the bottom of the die backing plate 6, and the die base 4 is provided with guide holes, and the guide pins 5 slide and fit with the guide holes on the die base 4, The combined die 1 and the die base 4 are positioned and fixedly connected with the lower template 2 through square keys 17, 20, fastening screws 15, 18, washers 16, 19 respectively; In the cover 9, the punch cover 9, the punch backing plate 10 are fixedly connected with the upper template 11 through the pin 12, the fastening screw 13, the washer 14. The die insert 7 is two left and right inserts that are vertically separated vertically and axially symmetrically, and the outer slopes of the two inserts slide up and down on the inner slope of the combined die 1 . In this way, the vertical parting mold is formed, the two inserts are closed during forming, and the outer slopes of the two inserts and the inner slope of the combined die 1 form frictional self-locking; when the forming is completed, the punch 8 is lifted, and the ejector rod 3 passes through the guide pin 5 Guide, promote the die backing plate 6 to rise, so that the die insert 7 is automatically separated while rising along the inner slope of the combined die 1, so as to take parts. The inner inclined surface of the combination die 1 is provided with grooves, the outer surface of the die insert 7 is provided with convex ribs, and the ribs on the die insert 7 are placed in the grooves on the inner inclined surface of the combined die 1 for sliding fit. . The inclined surface with grooves of the inner mold of the combination die of the structure plays a role of bearing radial load, guiding and supporting the insert of the die to move accurately up and down along the inclined surface.

Claims (3)

1, a kind of strip convex tendon aluminium alloy does not have pattern draft isothermal precise forming mold, it is characterized in that including combined die (1), lower bolster (2), ejector beam (3), die socket (4), guide finger (5), die backing plate (6), die plate insert (7), punch (8), punch case (9), convex mould pad (10), cope match-plate pattern (11), pin (12), trip bolt (13,15,18), packing ring (14,16,19), square key (17,20); The interior die face of combined die (1) is the inclined-plane, its internal mold bottom is provided with die backing plate (6), die plate insert (7) places on the interior die backing plate (6) of combined die (1), die backing plate (6) places on the die socket (4), two guide fingers (5) are arranged at die backing plate (6) bottom, die socket (4) is provided with pilot hole, pilot hole on guide finger (5) and the die socket (4) is slidingly matched, and combined die (1) and die socket (4) connect firmly with lower bolster (2) location by square key (17,20), trip bolt (15,18), packing ring (16,19) respectively; Punch (8) is located in the punch case (9) of convex mould pad (10) bottom, connects firmly with cope match-plate pattern (11) location through pin (12), trip bolt (13), packing ring (14) punch case (9), convex mould pad (10).

2, there is not the isothermal precision formed mould of pattern draft by the described strip convex tendon of claim 1 aluminium alloy, insert for left and right two that it is characterized in that being as the criterion described die plate insert (7) the longitudinal axis symmetry vertically separates, the two outer inclined-planes of inserting slide up and down cooperation on the interior inclined-plane of combined die (1).

3, there is not the isothermal precision formed mould of molding gradient by claim 1 or 2 described strip convex tendon aluminium alloys, the interior inclined-plane that it is characterized in that described combined die (1) is provided with groove, the outer surface of die plate insert (7) is provided with convex tendon, and the convex tendon on the die plate insert (7) places in the groove on the interior inclined-plane of combined die (1) and is slidingly matched.

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