CN2030116U - Pressing mould for bending and notching metallic plate and strip - Google Patents

Abstract

The utility model relates to a pressing mould for bending and notching a metallic lath, which is especially suitable for bending and molding by winding, and the window of a ventilated shutter pressed by a resistor belt of large power. The utility model is composed of an upper mould, a lower mould, a drift plug, a cover plate, a pressing plate, etc., wherein, the mould adopts a concave-shaped circle arc upper mould and a convex-shaped circle arc lower mould to carry out S-shaped bending winding of a metallic lath and pressing and shaping of a circular arc at a turning; the utility model adopts a method that a circular arc-shaped drift plug is inlaid on the upper mould and a circular arc-shaped groove is arranged on the lower mould to carry out to notch a ventilation shutter window which is positioned at the circular arc of the turning of the resistor belt. The mould can guarantee quality, and solves the problem that four processes that the metallic lath is bent and wound in an S shape, the sizes of positioning holes are corrected, the window of a ventilated shutter is notched and the circular arc at a turning is adjusted and molded can be completed once.

Description

Pressing mould for bending and notching metallic plate and strip

The utility model belongs to the laths of metal brake forming and cold punching lacks mould, is specially adapted to the punching press ventilating blind window and the moulding of S shape bending and winding of large power, electrically stopband.

Known a strip metal lath is carried out bending, multiple processing such as compression moulding and punching out product, often adopt simple function mould such as bending die, press-moulding die, piercing die etc., just can finish through multiple working procedure, the mould of now existing bending and die-cut comprehensive process, as Russian Patent SU937084 " otch of sheet material and the crooked module of using ", but the former exists operation tediously long, the latter need many process equipments, and the relative dimensions of workpiece is difficult for shortcomings such as assurance after multiple working procedure processing, though can save indivedual operations and process equipment, but there is the mould structure complexity, the more high shortcoming of manufacturing cost.Making as for comparatively complicated continuous S-shaped large power, electrically stopband device, passed through mostly: on the resistive band plane, go out locating hole that spacing equates and a plurality of pins of long hundred leaf window → employings location with cold-punching mould and carry out manual strip winding → the align circular arc at turning with the ventilating blind window → craft at hand vice correction locating hole → employing piercing die punching out resistive band turning circular arc place in the past, be that multiple working procedures such as cavetto moulding are finished, this processing method operation is tediously long, labour intensity is big, and the crudy of next four operations is unsecured, recently the strip winding operation adopts special wrapping machine to carry out mechanical strip winding, though labour intensity alleviates to some extent, but still existing operation many, crudy is difficult for shortcomings such as assurance and wrapping machine cost costliness.

The purpose of this utility model provides a kind of guaranteeing under the prerequisite of crudy, and is cheap for manufacturing cost, and can once finish laths of metal S shape bending and winding, and the locating hole dimension correction is towards the mould of four operations of adjustment moulding of ventilation breach and knee circular arc.

The method that achieves the above object is to comprising patrix, counterdie, drift, the common stamping die of parts such as cover plate and pressing plate is improved, its difference is that patrix is a rectangular member, flat placement, its center upper portion is parallel to the rectangular indentation that the cuboid minor axis has perforation, lower central is parallel to the circular arc cutaway that rectangular indentation has a perforation, the rectangular indentation bottom center has a vertical circular hole, respectively there is a square vertical core circular hole both sides along short-axis direction, the sidewall of rectangular indentation respectively has the horizontal direction silk hole of two vertical short axis, square opening assembling square bar circular arc drift, patrix and drift are fixed on the horizontal convex cantilever beam of cover plate by bolt and spill pressing plate, counterdie is the strip member with circular upper part and square lower part shaped cross, near on the circular arc body of an one termination, along patrix central circular hole center line a dark circular hole of top-down half is arranged, the silk hole that a concentricity line is arranged below the circular hole, the circular hole both sides along the long axis direction of strip member over against the patrix drift, the circular groove that a symmetry is respectively arranged, insert pin in the circular hole, half of pin is exposed at outside the hole, silk is screwed into screw in the hole, and the other end of counterdie is by moulded board and soket head cap screw are fixed on the die bottom plate down.Promptly adopt the counterdie of the patrix of spill circular arc and convex shaped arc to implement the bending and the circular arc molding of laths of metal; It is spacing to add the location pin on counterdie, can reach to guarantee after the resistive band bending size constancy between the locating hole; Patrix is inlayed square bar circular arc drift, processes circular groove relatively on counterdie, and is scarce to implement dashing of resistive band turning circular arc place ventilating blind window.

Accompanying drawing 1 is the crooked front view that lacks press-moulding die that dashes of laths of metal; Accompanying drawing 2 is the A-A cutaway view of mould; Accompanying drawing 3 is for dashing the resistive band appearance of device figure that lacks the bending and winding moulding.

Be described in detail embodiment below in conjunction with accompanying drawing.Laths of metal is crooked to comprise base plate (1) towards lacking press-moulding die, spring (2), guide pillar (3), stop screw (6), roller wheel bearing seat (8), roller pin (9), roller known parts such as (10), patrix (13) is a rectangular member, its center upper portion is parallel to the rectangular indentation that the cuboid minor axis has perforation, lower central is parallel to the circular arc cutaway that rectangular indentation is opened a perforation, the rectangular indentation bottom center is bored vertical circular hole, respectively there is a square vertical core circular hole both sides along short-axis direction, the sidewall of rectangular indentation respectively has the horizontal direction silk hole of two vertical short axis, assembling square bar circular arc drift (12) in two square holes, patrix and drift are by spill pressing plate (11) and bolt (4), and (7) are fixed on the horizontal convex cantilever beam of cover plate (5); Two vertical square openings of jut processing of the cantilever beam of cover plate (5), the spacing of two square holes equates with the spacing of patrix square hole, in of the position cross drilling tapping of jut left surface corresponding to two square holes, use to be screwed into drift dog screw (21), respectively there are two silk holes the upper and lower of cantilever beam, and the level interval in silk hole equates with the silk pitch of holes of patrix rectangular indentation sidewall; Two transverse wire holes are arranged at the concave indentation bottom of the spill pressing plate (11) that matches with the horizontal convex cantilever beam of cover plate, when the cantilever beam of pressing plate and cover plate closes up, the position in silk hole is corresponding with the silk hole of cantilever beam lug boss on the pressing plate, a jag of pressing plate bores one from bottom to top near termination central authorities and sinks to the bottom circular hole, two vertical square grooves of circular hole both sides processing, the position of square groove is corresponding with the square hole position two of cover plate cantilever beam jut, respectively there are two horizontal direction silk holes the upper and lower of the pressing plate that horizontal spill is placed, use to be screwed into set bolt (4) and (7), pressing plate (11) is closely connected to be bumped into and to form cuboid behind the cantilever beam of cover plate (5) and just embed among the rectangular indentation of patrix (13), and the square bar of two circular arc drifts inserts the patrix square hole successively.Among the square hole of pressing plate square groove and cover plate cantilever beam, a locating slot is arranged at drift square bar top, drift dog screw (21) is screwed into the silk hole of pressing plate concave indentation bottom and the silk hole of cover plate cantilever beam lug boss, support the locating slot into the drift square bar at last, patrix, pressing plate and cover plate cantilever beam cooperate the back fixing with two stay bolts (4) and two lag bolts (7); The strip member of counterdie (16) for having the circular upper part and square lower part shaped cross, be drilled with a dark circular hole of half from top to bottom near on the circular arc body of an one termination, the silk hole that a concentricity line is arranged below the circular hole, the circular hole both sides respectively process the circular groove of a symmetry along the strip member long axis direction, insert pin (15) in the circular hole, the half pin exposes outside the hole, silk is screwed into screw (17) in the hole, in order to adjust the height that stretches out of pin, the position of pin (15) and circular groove is aimed at central circular hole and two drifts of patrix respectively, the other end of counterdie embeds the circular upper part and square lower part shape breach of moulded board (20) down, with four soket head cap screws (18) pressing plate (20) is fixed on the base plate (1), screw (14) pushes against counterdie, work to strengthen fixedly counterdie, the screw (19) of pressing plate (20) side heads into counterdie side corresponding grooves, plays the role of positioning.This mould power-equipment can be with 40～80 tons of general punch presses, also can be with simple cylinder blast machine.The operating process of processing continuous S-shaped resistive band device is as follows: going out a plurality of technology locating holes (24) and the long narrow ventilating blind window that equidistant from distance is arranged on the rectangular resistive band plane on the punch press with piercing die earlier, because it is scarce to be that the plane dashes, crudy is to guarantee easily; Then dashing the pin (15) that first locating hole of rectangular resistive band (22) that the technology locating hole is arranged is inserted in this lower mould, as shown in Figure 1; Start power-equipment, make under the patrix and dash, be inserted in the convex shaped arc of counterdie gradually by the spill circular arc of patrix, the resistive band two ends are curved downwards, then drift (12) is gone out two circular arc ventilation windows (25) on the surface that curves of resistive band, and patrix dashes under continuing, when upper and lower mould closely closes up, the resistive band turning is lacked the circular arc that is out of shape owing to dashing, be pressed into desired circular arc at last; Then 180 ° of resistive band upsets, in turn second locating hole is inserted in pin (15), repeating aforesaid operations can become continuous S-shaped to rectangular resistive band bending and winding, and goes out circular arc ventilating blind window at the turning, at last the turning is pressed into the resistance device of desired circular arc.

Present embodiment has put into production nearly 1 year, demonstrates fully that it is simple in structure, easy to operate, and labour intensity is little, saving working hour and processing work quality height, and qualification rate reaches the advantage such as 100%. Original coiling S shape resistive band device comprises that punching lacks and waits four operations to need 13 operating personnel, now only needs 2 people.

Claims (1)

1, crooked the dashing of a kind of laths of metal lacks press-moulding die, it is by patrix, counterdie, drift, parts such as cover plate and pressing plate constitute, it is characterized in that patrix is a rectangular member, flat placement, its center upper portion is parallel to the rectangular indentation that the cuboid minor axis has perforation, lower central is parallel to the circular arc cutaway that rectangular indentation has a perforation, the rectangular indentation bottom center has a vertical circular hole, respectively there is a square vertical core circular hole both sides along short-axis direction, the sidewall of rectangular indentation respectively has the horizontal direction silk hole of two vertical short axis, two square vertical core assembling square bar circular arc drifts, patrix and drift are fixed on the horizontal convex cantilever beam of cover plate by bolt and spill pressing plate, counterdie is the strip member with circular upper part and square lower part shaped cross, near on the circular arc body of an one termination, along patrix central circular hole center line a dark circular hole of top-down half is arranged, the silk hole that a center line is arranged below the circular hole, respectively there is the circular groove of a symmetry circular hole both sides over against the patrix drift along the long axis direction of strip member, insert pin in the circular hole, half of pin is exposed at outside the hole, silk is screwed into screw in the hole, and the other end of counterdie is by moulded board and soket head cap screw are fixed on the base plate of mould down.

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