SU419374A1 - STAMP FOR CUTTING BAR L \ ATERIAL - Google Patents

Description

one

The invention relates to the field of metal forming, in particular to dies for reek bar material.

Punches for cutting bar material are known that contain a knife stationary during cutting and a clamp associated with a clamping mechanism, interacting with a press slide II — a knife and a clamp relative to the body, and an emphasis with the mechanism of withdrawing it from the worker; positions.

The design and ease of adjustment of the clamping force is ensured by the fact that the clamping mechanism is made in a zide, and at least one eccentric, connected with the possibility of relative rotation on the axis fixed on the press slide, and an elastic element supported by it fixed to the stationary slide. in the process of cutting clamp.

The mechanism for removing the pore from the working position can be pulled out completely in the form of a rocker arm, at one end of which a stop is attached to the tray for holding the workpieces, and on the other - the counterweight.

The stamp can be provided with additional bunks of movable and incompatible knives and clamps in the nose at all, mounting the x in the case similarly to that available.

Ma. 1 shows the proposed longitudinal section; in fig. 2 - the same, ion iU4 ibH cut; in fig. 3 -; r-x; lIIzm retraction emphasis from the working position; in fig. 4 - mechN 1z unloading; and blanks.

The stamp contains sm1ggirona; P1ye in case 1 not fit ;; During the cutting process, the knife 2 and the clamp are pressed together with the slider - / Iress knife 5 and the clamp b, and the stop 7. The clamping mechanism associated with the cut 3 is less than 1 in. However, at least one E1 centric b, mounted with possible relative rotation on the axis 9, is fixed 1 1 on the press ram, and at the same time elastic elastic element, iianpiiMep torsion B.Il 0. The stop / is equipped with a mechanism to retract it with working position, made in the form of a box. //, at one end of which an anvil is fixed to the tray 12 for receiving blanks, and at the other end is the projectile 13. The punch can be equipped with several bunches of knives 2 and 5 and other. 3 and 6.

The stamp works as follows.

The bar M is fed into the opened action of the spring of knives 15 and the knives up to the unor 7. The press slider 4 is lowered, moving down the axis 9 with the eccentrics 8 installed on them, which interact with the standard elements) (torso; onn shafts) JO, carried out the clamp; In the process of cutting a private bar, the force of the clamp is regulated by turning the electrists of the rotation of the axis .9,

controlled by the vernier 16. When the geisha is lowering the slide, its striker 17 contacts the punches 18, which move the knives 5 and the clamps 6 relative to the fixed knives 2 and clamps 3 during the cutting process. The fragmentation occurs. Then the press slider is raised, the knives 5 and the clamps 6 are returned to their original position, and the resulting blanks 19 are pushed into the tray 12.

During the next run down of the press slide, the blanks are unloaded from the tray by the mechanism for unloading blanks, the plunger 20 of which, lowering, rotates the lever 21, and with it the tray 12 fixed on the axis 22 rigidly connected to the lever 21. After that, the rocker 11 under the action the counterweight 13 is pressed against the pin: ftu 23 and frees the way for unloading newly received blanks from the die cavity into the tray. Under the influence of the weight of these blanks, the rocker deflects in the opposite direction before contact with the pin 24. In this case, the stop 7 returns to the working position.

To set the size of the blanks stamp set setting between adjacent pairs of moving and stationary in the process of cutting tool (knives 2 and 5 and clamps 3 and 6} inserts 25 and 26.

When installing the strainer on a horizontal press (vertical bar feed), the unloading of the blanks takes place in the process of moving the block 27, in which are mounted

knives and clamps that are motionless and immobile in the process of cutting, are directed towards hole 28 (Fig. 2). The movement of the block 27 is carried out by the cam 29 acting on the roll, infra 30 and the spring 31.

Subject invention

Claims (3)

1. Stamp for cutting bar material containing idlers and clamping in the casing that are not connected during the cutting process, associated with the clamping mechanism, interacting with the press ram and spring-loaded openers on the casing, the knife and the clamp, and the stop with a mechanism for removing it from the working position, characterized in that, in order to simplify the construction and facilitate the adjustment of the clamping force, the clamping mechanism is made in the form of at least one eccentric, mounted with the possibility of relative rotation on the axis fixed on the nonsuit of the press, and with it of it of the elastic element, resting on the fixed in the process of cutting pressure. 2. A stamp in accordance with claim 1, characterized in that the mechanism for retracting the support from the working position is designed as a rocker arm, at one end of which a stop and a tray for receiving workpieces are fixed, and on the other side there is a counterweight. 3. Stamp on PP. 1 and 2, characterized in that it is provided with additional bunks of movable and stationary during the cutting process knives and clamps mounted in the housing similarly available.