CN202762826U - Mechanism for one-time forming of symmetrical and multistep thin plates - Google Patents

Abstract

The utility model provides a mechanism for forming a symmetrical multi-step thin plate at one time with convenient operation and simple processing procedures, which includes an upper mold part, a lower mold part and a spring reset device that drives the swinging lower mold to rotate, and the upper mold part It includes an upper mold base and an upper mold installed on the upper mold base. The lower mold part includes a lower mold base, a backing plate fixed on the lower mold base, a lower mold insert, and is installed on the lower mold insert through a pin connection. The swinging lower mold of the swinging lower mold swings around the pin shaft under the action of the upper mold and the spring return device. The shape after the swing is just matched with the shape of the upper die. Springs and ejector rods, this mechanism for one-time forming of symmetrical multi-step thin plates can realize bending of thin plates with multiple symmetrical steps in one process. The processing procedure is simple, reducing multiple positioning during processing, improving production efficiency and reducing production cost.

Description

The mechanism of the symmetrical multi-ladder thin plate of a kind of once-forming

Technical field

The utility model relates to a kind of mechanical stamping manufacture field technology, refers in particular to the mechanism of the symmetrical multi-ladder thin plate of the simple a kind of once-forming of manufacturing procedure, and this mechanism's one procedure is finished the processing of symmetrical multi-ladder sheet material.

Background technology

In the mechanical stamping manufacture field, bending machining be the most frequently used also be to use maximum a kind of punch process operations.With regard to the pressing equipment of the symmetrical multistage gangboard of existing processing, some former complex structure, finish processing and need multiple working procedure, and in process, want multiple bearing, the machining accuracy of workpiece is difficult to guarantee, in addition, such process equipment also needs special supporting structure, so that the cost of investment of production equipment increases; Some equipment also can be shaped by a procedure, but after shaping, discharging inconvenience, complex operation, production efficiency is difficult to guarantee, has increased from another point of view the production cost of processing work.

The utility model content

The deficiency that the utility model exists for existing process equipment, its main purpose provides the mechanism of the symmetrical multi-ladder thin plate of a kind of once-forming, it is simple in structure, one procedure processes the thin plate sheet material with a plurality of symmetrical ladders, discharging is convenient, need not special corollary equipment, this mechanism is directly installed on the ordinary press just can uses, greatly reduce production cost, improved the competitiveness of product in market.

For achieving the above object, the utility model adopts following technical scheme:

The mechanism of the symmetrical multi-ladder thin plate of a kind of once-forming, it is by the part of the upper die, part of the lower die and spring reverse motion form, the part of the upper die mainly comprises upper bolster and patrix, the part of the lower die comprises that mainly two counterdies are inserted and two swing counterdies, spring reverse motion comprises spring housing, spring and push rod, it is characterized in that: patrix is fixedly mounted in the groove of upper bolster lower surface by screw, counterdie is inserted and is fixed on the backing plate, swinging counterdie is mounted in the space that counterdie inserts by bearing pin, swing counterdie and swing around shank of bolt under the effect of patrix and spring reverse motion, the shape after the swing and the profile of patrix match.

As a kind of preferred version, be provided with the groove suitable with the patrix size on the lower surface of described upper bolster, patrix is placed in the groove and is connected by screw on upper bolster.

As a kind of preferred version, described two counterdies are inserted and are fixed on the backing plate, and the groove that has on it accurately is positioned with certain booster action to blank in process, have through hole on two sidewalls that counterdie is inserted, this hole connects the swing counterdie by bearing pin.

As a kind of preferred version, leave when mounted certain gap between described two swing counterdies, its end near the bearing pin end is designed to semicircle, is easy to realize in process, swings counterdie swing around shank of bolt under the effect of mold clamping force.

As a kind of preferred version, described spring housing is placed in the locating slot of die shoe upper surface, and the bottom of spring housing internal layer is provided with certain projection, and described spring and push rod are placed in the spring housing, on the projection of spring housing in spring housing, and spring withstands push rod.

As a kind of preferred version, described backing plate has slightly larger in diameter in the through hole of rod diameter in the position corresponding with locating slot on the base, described push rod contacts with described swing counterdie by this through hole, and backing plate is connected by screw and is fixed on the die shoe.

As a kind of preferred version, described bearing pin for connecting counterdie and inserting and swing counterdie, it adopts slightly larger in diameter to finish the location in the cap of pin diameter at axial location one end, and the other end is located with clamp.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: adopt in this structure two counterdies insert, two swing counterdie and spring reverse motion, reasonably solve the problem of the loaded down with trivial details and discharging difficulty of in the symmetrical multistage gangboard of processing operation, one procedure is finished the processing of symmetrical multistage gangboard, avoided workpiece multiple bearing in process, thereby guaranteed accurately the precision of processing work, in addition, the use of spring reverse motion, can unload quickly and easily workpiece, greatly improve production efficiency.

In order more clearly to describe design feature of the present utility model and effect, below in conjunction with the specific embodiment accompanying drawing the utility model is described in detail:

Description of drawings

Fig. 1 is front view before the utility model processing.

Fig. 2 is the main half sectional view of looking of the utility model matched moulds processing.

Fig. 3 is the utility model discharging front view.

The specific embodiment

As shown in Figure 2, the present embodiment discloses the mechanism of the symmetrical multi-ladder thin plate of a kind of once-forming, it is mainly by the part of the upper die, part of the lower die and spring reverse motion form, described part of the upper die comprises upper bolster 38, be fixed on patrix 35 on the upper bolster 38 by screw 39, described part of the lower die comprises die shoe 45, be fixed on the backing plate 44 on the die shoe 45, two counterdies that are fixed on the backing plate 44 insert 40, be connected to two that counterdie inserts on 40 by bearing pin 43 and swing counterdies 42, the end that bearing pin connects clamp 60 axial location, the shape that described two swing counterdies 42 swing when horizontal level is corresponding with the shape of patrix 35, and leave when mounted certain gap between two swings this moment counterdie 42, avoid two swing counterdies 42 when bearing pin 43 swings, mutually interfering, described spring reverse motion comprises spring housing 47, spring 48, push rod 49, the bottom of described push rod 49 contacts with described spring 48, its top contacts with the lower surface that swings counterdie 42, the elastic force of spring 48 promotes push rod 49 and moves up and down, and moving up and down of push rod 49 promotes to swing counterdie 42 around bearing pin 43 swings.

The specific works process of the present embodiment is as follows:

Shown in Fig. 1～3, the present embodiment is before implementing processing, blank 30 to be processed is clamped in counterdie and inserts 40 and swing between the counterdie 42, the groove that this moment, blank 30 utilized counterdie to insert on 40 is accurately located, the present embodiment is implementing to add man-hour, die shoe 38 drives counterdie 35 and moves downward under the drive of forcing press, in the process that die shoe 38 moves downward, force and swing counterdie 42 around bearing pin 43 rotations, contact fully with the upper surface of backing plate 44 until swing the lower surface of counterdie 42, this moment patrix 35 with two swing counterdie 42 complete matched moulds, push rod 49 also moves downward under the effect that swings counterdie 42 and forces spring 48 to shrink, thus so that blank 30 is shaped under the effect of mold clamping force symmetrical multistage gangboard workpiece 41.

After workpiece 41 machines, upper bolster 38 begins to drive patrix 35 and moves upward under the effect of forcing press, spring 48 began to pop up and promoted push rod 49 and move upward this moment, moving upward of push rod 49 forces swing counterdie 42 upwards to swing around bearing pin 43, at this moment the swing that swings counterdie 42 is released workpiece 41 and disengaging swing counterdie 42, namely conveniently finish the processing that discharging begins next workpiece, and so forth circulation, once finish the processing of symmetrical multi-ladder thin plate with simple structure and minimum operation, and can conveniently unload workpiece, quality and the precision of processing work have been improved, greatly reduce production cost, strengthened the competitiveness of product in market.

Claims (7)

1. A mechanism for forming symmetrical multi-step thin plates at one time. It consists of an upper mold part, a lower mold part and a spring reset device. The upper mold part mainly includes an upper mold base and an upper mold. The lower mold part mainly includes two lower mold inserts. block and two swinging lower molds, the spring return device includes a spring sleeve, a spring and a push rod, and it is characterized in that: the upper mold is fixed and installed in the groove on the lower surface of the upper mold base by screws, and the lower mold is inlaid The block is fixed on the backing plate, and the swinging lower mold is connected and installed in the space of the lower mold insert through a pin shaft, and the swinging lower mold swings around the bolt rod under the action of the upper mold and the spring return device. Match the shape of the mold. the 2. A mechanism for forming symmetrical multi-step thin plates at one time according to claim 1, characterized in that: a groove equivalent to the size of the upper mold is provided on the lower surface of the upper mold base, and the upper mold is placed in the groove and passes The screw is connected on the upper mold base. the 3. A mechanism for forming a symmetrical multi-step thin plate at one time according to claim 1, characterized in that: the two lower die inserts are fixed on the backing plate, and the grooves formed on it are formed during the processing. It has a certain auxiliary effect on the accurate positioning of the blank. There are through holes on the two side walls of the lower mold insert, and the holes are connected to the swinging lower mold through a pin shaft. the 4. A mechanism for forming a symmetrical multi-step thin plate at one time according to claim 1 or 3, characterized in that: there is a certain gap between the two swinging lower molds during installation, and one end is designed to be half The shape is round, and it is easy to realize the swing of the lower die around the bolt rod under the action of the clamping force during the processing. the 5. A mechanism for forming symmetrical multi-step thin plates at one time according to claim 1, characterized in that: the spring sleeve is placed in the positioning groove on the upper surface of the lower mold base, and the bottom of the inner layer of the spring sleeve is provided with a certain The protrusion, the spring and the push rod are placed in the spring sleeve, the spring sleeve is on the protrusion in the spring sleeve, and the spring withstands the push rod. the 6. A mechanism for one-time forming of symmetrical multi-step thin plates according to claim 1, characterized in that: said backing plate is provided with a channel with a diameter slightly larger than that of the push rod at a position corresponding to the positioning groove on the base. hole through which the push rod is in contact with the swinging lower die, and the backing plate is fixed on the lower die base through screw connections. the 7. A mechanism for forming a symmetrical multi-step thin plate at one time according to claim 1, characterized in that: the pin shaft used to connect the lower mold insert and the swing lower mold adopts a A cap with a diameter slightly larger than the diameter of the pin shaft completes the positioning, and the other end is positioned with a clip. the

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